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WO2023040854A1 - 冰箱 - Google Patents

冰箱 Download PDF

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Publication number
WO2023040854A1
WO2023040854A1 PCT/CN2022/118562 CN2022118562W WO2023040854A1 WO 2023040854 A1 WO2023040854 A1 WO 2023040854A1 CN 2022118562 W CN2022118562 W CN 2022118562W WO 2023040854 A1 WO2023040854 A1 WO 2023040854A1
Authority
WO
WIPO (PCT)
Prior art keywords
angle
door body
door
opened
track
Prior art date
Application number
PCT/CN2022/118562
Other languages
English (en)
French (fr)
Inventor
杨春
郭动
张向平
付婧
鲍雨锋
王海燕
Original Assignee
海信冰箱有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 海信冰箱有限公司 filed Critical 海信冰箱有限公司
Priority to JP2024515928A priority Critical patent/JP2024531700A/ja
Priority to EP22869223.2A priority patent/EP4403855A1/en
Priority to CN202290000489.0U priority patent/CN221223107U/zh
Publication of WO2023040854A1 publication Critical patent/WO2023040854A1/zh
Priority to US18/607,105 priority patent/US20240219106A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D3/00—Hinges with pins
    • E05D3/06—Hinges with pins with two or more pins
    • E05D3/18—Hinges with pins with two or more pins with sliding pins or guides
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D11/00—Additional features or accessories of hinges
    • E05D11/06—Devices for limiting the opening movement of hinges
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D7/00—Hinges or pivots of special construction
    • E05D7/08—Hinges or pivots of special construction for use in suspensions comprising two spigots placed at opposite edges of the wing, especially at the top and the bottom, e.g. trunnions
    • E05D7/081—Hinges or pivots of special construction for use in suspensions comprising two spigots placed at opposite edges of the wing, especially at the top and the bottom, e.g. trunnions the pivot axis of the wing being situated near one edge of the wing, especially at the top and bottom, e.g. trunnions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F25D23/028—Details
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
    • E05Y2900/31—Application of doors, windows, wings or fittings thereof for domestic appliances for refrigerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/02—Details of doors or covers not otherwise covered
    • F25D2323/021—French doors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/02—Details of doors or covers not otherwise covered
    • F25D2323/024—Door hinges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/06—Details of walls not otherwise covered

Definitions

  • the invention relates to the technical field of household appliances, in particular to a refrigerator.
  • the built-in refrigerator is to embed the refrigerator into the matching cabinet, and form a heat dissipation cycle through the feet, back plate and top plate. Therefore, there can be a small gap between the left and right side walls of the refrigerator and the inner wall of the cabinet.
  • a refrigerator which includes a box body, a hinge assembly and a door body.
  • the hinge assembly includes a first track slot, a second track slot, a first shaft and a second shaft.
  • the central trajectory of the first trajectory groove is a first trajectory, and the first trajectory includes a straight trajectory segment.
  • the center track of the second track groove is the second track.
  • the first shaft cooperates with the first track groove, and the orthographic projection of the central axis of the first shaft on the bottom of the first track groove is the positioning center point.
  • the second shaft cooperates with the second track groove, and the orthographic projection of the central axis of the second shaft on the bottom of the second track groove is the guide center point.
  • the door body is connected with the box body through the hinge assembly to open or close the box body.
  • the door body includes a door side wall, and the door side wall is a side wall of the door body close to the hinge assembly.
  • a plane defining a side of the box close to the first hinge assembly is a reference plane, and a side of the reference plane close to the box is an inner side.
  • the first axis and the second axis are fixed relative to the box; the first track groove and the second track groove are fixed relative to the door body; The other end of the straight track segment is further away from the door side wall.
  • the moving direction of the positioning center point as the first displacement direction
  • the moving direction of the guide center point as the second displacement direction
  • the included angle between the first displacement direction and the second displacement direction is the displacement clip horn.
  • FIG. 1 is a perspective view of a refrigerator according to some embodiments
  • Fig. 2 is a top view of a refrigerator installed in a cabinet according to some embodiments
  • Fig. 3 is a partial enlarged view of circle B1 in Fig. 2;
  • Fig. 4 is a structural diagram of a dual-axis assembly and a track groove of a refrigerator according to some embodiments
  • Fig. 5 is an exploded view of a first hinge assembly of a refrigerator according to some embodiments.
  • Fig. 6 is an exploded view of another first hinge assembly of a refrigerator according to some embodiments.
  • Fig. 7A is a perspective view of a second hinge assembly of a refrigerator when the door is closed according to some embodiments
  • Fig. 7B is a structural diagram of a second hinge assembly of a refrigerator when the door is closed according to some embodiments
  • Fig. 8A is a perspective view of a second hinge assembly of a refrigerator when the door is opened to any angle less than 90° according to some embodiments;
  • Fig. 8B is a structural diagram of a second hinge assembly of a refrigerator when the door is opened to any angle less than 90° according to some embodiments;
  • Fig. 9A is a perspective view of a second hinge assembly of a refrigerator when the door is opened to 90° according to some embodiments;
  • Fig. 9B is a structural diagram of a second hinge assembly of a refrigerator when the door is opened to 90° according to some embodiments.
  • Fig. 10A is a perspective view of a second hinge assembly of a refrigerator when the door body is opened to a maximum angle according to some embodiments;
  • Fig. 10B is a structural view of the second hinge assembly of a refrigerator when the door body is opened to the maximum angle according to some embodiments;
  • Fig. 11 is an exploded view of a second mounting block of a refrigerator according to some embodiments.
  • Fig. 12 is a perspective view of a second mounting block of a refrigerator according to some embodiments.
  • Fig. 13A is a structural diagram of a refrigerator in a closed state according to some embodiments.
  • Fig. 13B is a structural diagram of a refrigerator according to some embodiments when the opening angle of the door body is greater than 0° and less than or equal to n;
  • Fig. 13C is a structural diagram of a refrigerator according to some embodiments when the door is opened at an angle greater than n and less than or equal to n+90°;
  • Fig. 13D is a structural diagram of a refrigerator when the door is opened at an angle greater than n+90° according to some embodiments;
  • Fig. 14A is another structural diagram of a refrigerator in a closed state according to some embodiments.
  • Fig. 14B is a structural diagram of a refrigerator door opened to a first angle G1 according to some embodiments.
  • Fig. 14C is a structural diagram of a refrigerator door opened to a second angle G2 according to some embodiments.
  • Fig. 14D is a structural diagram of a refrigerator door opened to a third angle G3 according to some embodiments.
  • Fig. 14E is a structural diagram of a refrigerator door opened to a fourth angle G4 according to some embodiments.
  • Fig. 14F is a structural diagram of a refrigerator door opened to a fifth angle G5 according to some embodiments.
  • Fig. 14G is a structural diagram of a refrigerator door opened to a sixth angle G6 according to some embodiments.
  • Fig. 14H is a structural diagram of a refrigerator door opened to a seventh angle G7 according to some embodiments.
  • Fig. 14I is a structural diagram of a refrigerator door opened to an eighth angle G8 according to some embodiments.
  • Fig. 14J is a structural diagram of a refrigerator door opened to the maximum angle G9 according to some embodiments.
  • 15A is a schematic diagram of the relative positions of the first axis, the second axis, the first track groove and the second track groove when the door of a refrigerator is opened to the first angle G1 according to some embodiments;
  • 15B is a schematic diagram of the relative positions of the first axis, the second axis, the first track groove and the second track groove when the door of a refrigerator is opened to the second angle G2 according to some embodiments;
  • Fig. 15C is a schematic diagram of the relative positions of the first axis, the second axis, the first track groove and the second track groove when the door of a refrigerator is opened to a third angle G3 according to some embodiments;
  • 15D is a schematic diagram of the relative positions of the first axis, the second axis, the first track groove and the second track groove when the door of a refrigerator is opened to the fourth angle G4 according to some embodiments;
  • Fig. 15E is a schematic diagram of the relative positions of the first axis, the second axis, the first track groove and the second track groove when the door of a refrigerator is opened to the fifth angle G5 according to some embodiments;
  • Fig. 15F is a schematic diagram of the relative positions of the first axis, the second axis, the first track groove and the second track groove when the door of a refrigerator is opened to the sixth angle G6 according to some embodiments;
  • Fig. 15G is a schematic diagram of the relative positions of the first axis, the second axis, the first track groove and the second track groove when the door of a refrigerator is opened to the seventh angle G7 according to some embodiments;
  • Fig. 15H is a schematic diagram of the relative positions of the first axis, the second axis, the first track groove and the second track groove when the door of a refrigerator is opened to the eighth angle G8 according to some embodiments;
  • Fig. 15I is a schematic diagram of the relative positions of the first axis, the second axis, the first track groove and the second track groove when the door of a refrigerator is opened to the maximum angle G9 according to some embodiments;
  • Figure 16 shows the first axis, the second axis, the first track groove and the second track when the door of a refrigerator is opened from the second angle G2 to the seventh angle G7 (corresponding to the second stage) according to some embodiments Schematic diagram of the relative position of the groove;
  • Figure 17 shows the first axis, the second axis, the first track groove and the second track groove when the door of a refrigerator is opened from the seventh angle G7 to the maximum angle G9 (corresponding to the third stage) according to some embodiments Schematic diagram of the relative position;
  • Fig. 18 is a schematic diagram of another relative position of the first axis, the second axis, the first track groove and the second track groove when the door body of a refrigerator is opened to the maximum angle G9 according to some embodiments;
  • Fig. 19 is a partial enlarged view at circle B2 in Fig. 18;
  • Fig. 20 is a schematic diagram of the movement trajectory of the first side edge and the second side edge of a refrigerator during the door opening process according to some embodiments;
  • Fig. 21 is a structural diagram of the first axis, the second axis, the first track groove and the second track groove when the door body of a refrigerator is opened from the closed state to the second angle G2 according to some embodiments;
  • Fig. 22 is another structural diagram of a refrigerator in a closed state according to some embodiments.
  • Fig. 23 is a structural diagram of another first hinge assembly when the door body of a refrigerator is in a closed state according to some embodiments.
  • Fig. 24 is a structural diagram of another first hinge assembly when the door body of a refrigerator is in a closed state according to some embodiments;
  • Fig. 25 is a structural diagram of another first hinge assembly when the door body of a refrigerator is in a closed state according to some embodiments.
  • Fig. 26 is a schematic diagram of the relative positions of the first axis, the second axis, the first track groove and the second track groove when the door body of a refrigerator continues to move from the closed state to a negative angle according to some embodiments;
  • Fig. 27 is a structural diagram of a refrigerator door body continuing to move from a closed state to a negative angle according to some embodiments.
  • first and second are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as “first” and “second” may explicitly or implicitly include one or more of these features. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality” means two or more.
  • the expressions “coupled” and “connected” and their derivatives may be used.
  • the term “connected” may be used in describing some embodiments to indicate that two or more elements are in direct physical or electrical contact with each other.
  • the term “coupled” may be used when describing some embodiments to indicate that two or more elements are in direct physical or electrical contact.
  • the terms “coupled” or “communicatively coupled” may also mean that two or more elements are not in direct contact with each other, but yet still co-operate or interact with each other.
  • the embodiments disclosed herein are not necessarily limited by the context herein.
  • At least one of A, B and C has the same meaning as “at least one of A, B or C” and both include the following combinations of A, B and C: A only, B only, C only, A and B A combination of A and C, a combination of B and C, and a combination of A, B and C.
  • a and/or B includes the following three combinations: A only, B only, and a combination of A and B.
  • parallel As used herein, “parallel”, “perpendicular”, and “equal” include the stated situation and the situation similar to the stated situation, the range of the similar situation is within the acceptable deviation range, wherein the The acceptable deviation ranges are as determined by one of ordinary skill in the art taking into account the measurement in question and errors associated with measurement of the particular quantity (ie, limitations of the measurement system).
  • “parallel” includes absolute parallelism and approximate parallelism, wherein the acceptable deviation range of approximate parallelism can be, for example, a deviation within 5°; Deviation within 5°.
  • “Equal” includes absolute equality and approximate equality, where the difference between the two that may be equal is less than or equal to 5% of either within acceptable tolerances for approximate equality, for example.
  • the orientation expressions of up, down, left, right, front, and rear in the present disclosure refer to the state of the refrigerator when it is in use.
  • the side facing the user is the front side
  • the opposite side is the rear side.
  • the height direction of the refrigerator is up and down.
  • the left-right direction of the refrigerator is opposite to the user's left-right direction, for example, the left side of the refrigerator is the user's right side, and the right side of the refrigerator is the user's left side.
  • the refrigerator 1 includes a box body 10 , a door body 20 and a hinge assembly 30 .
  • the box body 10 includes an inner container, an outer shell and a heat insulation layer.
  • the inner container is roughly in the shape of a rectangular box, and a storage room is defined therein.
  • the shape of the outer casing matches the shape of the inner container, and the inner container is arranged in the outer casing.
  • the heat insulation layer is disposed between the inner container and the outer shell to block the heat transfer between the storage chamber and the outer space of the box body 10 .
  • the refrigerator 1 further includes a cooling device configured to provide cool air to the storage compartment.
  • a cooling device configured to provide cool air to the storage compartment.
  • One side (such as the front side) of the storage compartment is open to form a pick-and-place opening.
  • the storage room is configured to store food, and a user can put food into or take out food from the storage room through the access opening.
  • the storage room may be divided into a refrigerator room and a freezer room.
  • the refrigerating room can maintain the temperature of the air inside it at about 0° C. to 5° C. and store food in a refrigerating mode.
  • the freezer can maintain the temperature of the air inside it at about -30°C to 0°C, and store food in a freezing mode.
  • the box body 10 may also include other chambers, for example, a vacuum chamber, a constant temperature chamber, and the like.
  • the refrigerator compartment and the freezer compartment are arranged along the height direction of the refrigerator 1 .
  • the refrigerating compartment is located below the freezing compartment.
  • the refrigerator compartment and the freezer compartment may be arranged in other ways, which is not limited in the present disclosure.
  • the door body 20 is connected to one end (such as the front end) of the box body 10 through a hinge assembly 30 .
  • the door body 20 can be rotated to open or close the storage compartment.
  • the access port allows food to be put in or taken out.
  • the hinge assembly 30 is, for example, a first hinge assembly 40 or a second hinge assembly 50 .
  • the first hinge assembly 40 is arranged on the upper part of the box body 10, and is fixedly connected with the box body 10 and the door body 20 respectively;
  • the second hinge assembly 50 is arranged at the lower part of the box body 10, and is respectively fixed with the box body 10 and the door body 20 connect.
  • the first hinge assembly 40 and the second hinge assembly 50 are arranged along the same axis, so that the door body 20 can rotate around the axis to realize the opening and closing of the door body 20 .
  • the hinge assembly 30 is located on the left or right side of the door body 20 .
  • the door body 20 includes a left side wall, a right side wall, an upper side wall, a lower side wall and a front side wall.
  • the side wall closer to the hinge assembly 30 among the left side wall and the right side wall of the door body 20 is called the door side wall 21 .
  • the hinge assembly 30 is arranged on the left end of the door body 20 (that is, the user's right end), then the left side wall of the door body 20 is called the door side wall 21, and the right end of the door body 20 is referred to as Its left end is the center of rotation for rotating motion.
  • the hinge assembly 30 when the hinge assembly 30 is arranged at the right end of the door body 20 , the right side wall of the door body 20 is called the door side wall 21 , and the left end of the door body 20 rotates with its right end as the rotation center.
  • the door side wall 21 when the door body 20 is closed, the door side wall 21 is flush with the side wall of the box body 10 close to the hinge assembly 30 (ie, the box body side wall 12 ). It should be noted that the leveling includes completely leveling and approximately leveling.
  • the side wall (for example, the front side wall) away from the box body 10 when the door body 20 is closed is called the door front wall 22
  • the door body 20 is closed when it is closed.
  • the side wall (eg, the rear side wall) close to the box body 10 is called the door rear wall 23 .
  • the intersection of the door front wall 22 and the door side wall 21 forms a first side edge W (ie side edge), and the intersection of the door side wall 21 and the door rear wall 23 forms a second side edge N.
  • the first side edge W is located on the side of the second side edge N away from the box body 10 .
  • the intersection line of the two planes is the theoretical first side edge W.
  • the intersection of the door front wall 22 and the door side wall 21 is usually rounded and transitioned. In this way, the intersection of the door front wall 22 and the door side wall 21 forms a curved surface, and any straight line extending along the height direction (ie, up and down direction) of the refrigerator 1 on the curved surface can represent the first side edge W.
  • the box body 10 includes a left side wall, a right side wall, an upper side wall, a lower side wall and a rear side wall.
  • a plane where a side wall close to the hinge assembly 30 of the left and right side walls of the box body 10 is located is defined as a reference plane M0.
  • the side where the box body 10 is located is defined as the inner side, and the opposite side is defined as the outer side.
  • the hinge assembly 30 is arranged at the left end of the box body 10 , then the left side wall of the box body 10 is defined as a reference plane M0 , and the inner side is the right side of the reference plane M0 .
  • the hinge assembly 30 when the hinge assembly 30 is arranged at the right end of the box body 10, the right side wall of the box body 10 is defined as a reference plane M0, and the inner side is the left side of the reference plane M0.
  • the width of the first gap 101 is usually any value between 3mm and 5mm, for example, the width of the first gap 101 can be 3mm, 4mm or 5mm.
  • the first side edge W exceeds the distance of the reference plane M0 (that is, as the door body 20 rotates, when the first side edge W When moving from the reference plane M0 to the outer side, the distance between the first side edge W and the reference plane M0 should not be too large, for example, the distance should not be greater than 5mm. Otherwise, the first side edge W will collide with the cabinet 100 , so that the door 20 cannot be fully opened, and the door 20 or the cabinet 100 will be damaged.
  • the hinge assembly 30 is in the form of a biaxial hinge, so that the first side edge W of the door body 20 moves toward the inner side when the door body 20 is rotated, so as to prevent the first side edge W from colliding with the cabinet 100 .
  • the first hinge assembly 40 includes a first hinge plate 410 , a first biaxial assembly 420 , a first track groove 433 and a second track groove 434 .
  • the first hinge plate 410 includes a first connecting portion 411 and a first extending portion 412 connected to the first connecting portion 411 , the first connecting portion 411 and the first extending portion 412 are coplanar.
  • the first dual shaft assembly 420 includes a first shaft 421 and a second shaft 422 .
  • the door body 20 includes a first end cover 210 disposed on the upper end of the door body 20 and corresponding to the position of the first hinge assembly 40 .
  • a side surface of the first end cover 210 close to the first hinge plate 410 is recessed away from the first hinge plate 410 to form a first track groove 433 and a second track groove 434 .
  • the first end cap 210 is an injection molded part, which is integrally formed by injection molding.
  • the first end cover 210 can be integrally formed with the door body, in this case, the first end cover 210 can be a part of the door body.
  • Both the first shaft 421 and the second shaft 422 of the first double shaft assembly 420 are disposed on the first extension part 412 and extend downward from the lower surface of the first extension part 412 .
  • the first shaft 421 is inserted in the first track groove 433 and matched with the first track groove 433 ; the second shaft 422 is inserted in the second track groove 434 and matched with the second track groove 434 .
  • the first connecting portion 411 is fixedly connected to the upper side wall of the box body 10 .
  • the first connecting part 411 has a plurality of first through holes 4111
  • the box body 10 has a plurality of second through holes 11, and the plurality of second through holes 11 are located in the upper side wall of the box body 10 and are connected with the plurality of first through holes.
  • 4111 are in one-to-one correspondence, and the first connecting part 411 can be fixedly connected to the box body 10 by fasteners such as screws.
  • the box body 10 and the door body 20 are connected through the first hinge assembly 40 , and the door body 20 can rotate relative to the box body 10 through the first hinge assembly 40 .
  • the diameter of the first shaft 421 is larger than the diameter of the second shaft 422 .
  • the first axis 421 is the main axis and mainly plays a positioning role
  • the second axis 422 is a secondary axis and mainly plays a guiding role.
  • the first connecting portion 411 is integrally formed with the first extension portion 412 , and the first hinge plate 410 , the first shaft 421 and the second shaft 422 are integrally formed.
  • the first hinge plate 410 , the first shaft 421 and the second shaft 422 can be independent parts, and the first shaft 421 and the second shaft 422 can be fixedly connected to the first hinge plate 410 by welding or screwing.
  • the first hinge assembly 40 further includes a first mounting block 430
  • the first mounting block 430 includes a first board body 431 and a first protruding portion 432 .
  • the first plate 431 extends downward to form a first protruding portion 432
  • the first protruding portion 432 opens upward to define a first track groove 433 and a second track groove 434 .
  • the first track groove 433 includes a groove bottom and a circumferential groove wall surrounding the edge of the groove bottom.
  • the circumferential groove wall encloses a notch opposite to the groove bottom.
  • the structure of the second track groove 434 is similar to that of the first track groove 433 except for the length and shape of the groove.
  • the first end cover 210 includes a first receiving groove 213 , and the first receiving groove 213 opens upward.
  • the first mounting block 430 is embedded in the first receiving groove 213 .
  • the first board 431 is parallel to the upper sidewall of the door 20 .
  • the first plate body 431 has a plurality of third through holes 4311, the first end cover 210 has a plurality of fourth through holes 214, and the plurality of fourth through holes 214 correspond to the plurality of third through holes 4311 one by one.
  • the first plate body 431 and the first end cover 210 can be fixedly connected by means such as screws.
  • the first plate body 431 includes a first card interface; the first receiving groove 213 includes a first locking part; when the first installation block 430 is embedded in the first receiving groove 213, the first card The connection part is installed in the first card interface, so that the relative position of the first installation block 430 and the door body 20 can be limited.
  • the first plate body 431 and the first protruding portion 432 are integrally formed, so that the structural accuracy and strength of the first mounting block 430 can be improved.
  • first plate body 431 and the first protruding portion 432 can be integrally formed by injection molding.
  • the second hinge assembly 50 includes a second hinge plate 510 , a second biaxial assembly 520 , a third track groove 533 and a fourth track groove 534 .
  • the second hinge plate 510 includes a second connecting portion 511 and a second extending portion 512 connected to the second connecting portion 511 .
  • the second dual shaft assembly 520 includes a third shaft 521 and a fourth shaft 522 .
  • the door body 20 further includes a second end cover 220 , the second end cover 220 is disposed on the lower end of the door body 20 and corresponds to the position of the second hinge assembly 50 .
  • a side surface of the second end cover 220 close to the second hinge plate 510 is recessed away from the second extension portion 512 to form a third track groove 533 and a fourth track groove 534 .
  • the second end cap 220 is an injection molded part, which is integrally formed by injection molding.
  • the second end cover 220 can be integrally formed with the door body, in this case, the second end cover 220 can be a part of the door body.
  • the second connecting portion 511 is connected to a side of the lower end of the box body 10 close to the door body 20 .
  • the second extension portion 512 extends from the second connection portion 511 toward a direction away from the box body 10 .
  • the second connection part 511 has a plurality of fifth through holes 5111, and the box body 10 has a plurality of sixth through holes, and the plurality of sixth through holes are located in the lower side wall of the box body 10 and are connected with the plurality of fifth through holes 5111.
  • the second connecting portion 511 can be fixedly connected to the box body 10 by fasteners such as screws.
  • Both the third shaft 521 and the fourth shaft 522 of the second dual shaft assembly 520 are disposed on the second extension part 512 and extend upward from the upper surface of the second extension part 512 .
  • the third shaft 521 is inserted in the third track groove 533 and matched with the third track groove 533 ; the fourth shaft 522 is inserted in the fourth track groove 534 and matched with the fourth track groove 534 .
  • the box body 10 and the door body 20 are connected through the second hinge assembly 50 , and the door body 20 can rotate relative to the box body 10 through the second hinge assembly 50 .
  • the diameter of the third shaft 521 is larger than the diameter of the fourth shaft 522 .
  • the third axis 521 is the main axis, which mainly plays a positioning role
  • the fourth axis 522 is a secondary axis, which mainly plays a guiding role.
  • the door body 20 rotates, it exerts force on the third axis 521 and the fourth axis 522 , and the force is mainly concentrated on the main axis. Therefore, when the diameter of the third shaft 521 is larger than that of the fourth shaft 522, the strength of the third shaft 521 can be improved.
  • the second connecting portion 511 is integrally formed with the second extending portion 512
  • the second hinge plate 510 , the third shaft 521 and the fourth shaft 522 are integrally formed.
  • the second hinge plate 510 , the third shaft 521 and the fourth shaft 522 can be independent parts, and the third shaft 521 and the fourth shaft 522 can be fixedly connected with the second hinge plate 510 by welding or screwing.
  • the second hinge assembly 50 further includes a second mounting block 530
  • the second mounting block 530 includes a second plate body 531 and a second protruding portion 532 .
  • the second plate body 531 extends downward to form a second protruding portion 532
  • the second protruding portion 532 opens downward to define a third track groove 533 and a fourth track groove 534 .
  • the third track groove 533 includes a groove bottom and a circumferential groove wall surrounding the edge of the groove bottom.
  • the circumferential groove wall encloses a notch opposite to the groove bottom.
  • the structure of the fourth track groove 534 is similar to that of the third track groove 533 except for the length and shape of the groove.
  • the second end cover 220 includes a second receiving groove 223 , and the second receiving groove 223 opens downward.
  • the second mounting block 530 is embedded in the second receiving groove 223 .
  • the second plate body 531 is parallel to the lower side wall of the door body 20 .
  • the second plate body 531 has a plurality of seventh through holes 5311, the second end cover 220 has a plurality of eighth through holes 224, and the plurality of eighth through holes 224 correspond to the plurality of seventh through holes 5311 one by one.
  • the second plate body 531 and the second end cover 220 can be fixedly connected by means such as screws.
  • the second plate body 531 includes a second card interface; the second receiving groove 223 includes a second locking part; when the second mounting block 530 is embedded in the second receiving groove 223, the second The clamping part is installed in the second clamping interface, so that the relative position of the second mounting block 530 and the door body 20 can be limited.
  • the second plate body 531 and the second protruding portion 532 are integrally formed, so that the structural accuracy and strength of the second mounting block 530 can be improved.
  • the second plate body 531 and the second protruding portion 532 can be integrally formed by injection molding.
  • the second hinge plate 510 further includes a first matching portion
  • the second mounting block 530 further includes a second matching portion matched with the first matching portion.
  • the first matching portion cooperates with the second matching portion to limit the door body 20 .
  • the first matching portion is disengaged from the second matching portion, so that the door body 20 rotates away from the box body 10 .
  • the second matching portion is configured as a locking hook 540 .
  • the locking hook 540 is disposed on one side (such as the left side or the right side) of the second board body 531 .
  • the fixed end of the locking hook 540 is fixedly connected to the second plate body 531, and the free end of the locking hook 540 extends away from the second plate body 531 and bends toward the direction close to the second plate body 531, thereby forming a direction toward the second plate body 531.
  • the opening 541 of the plate body 531 , and the free end of the locking hook 540 is closer to the box body 10 than the fixed end thereof.
  • the first matching portion is configured as a stopper portion 513 .
  • the stop portion 513 is disposed on one side (eg, left or right) of the second extension portion 512, and the stop portion 513 extends from the side of the second extension portion 512 toward a direction away from the second extension portion 512 .
  • a second gap 514 is defined between the stop portion 513 and the second connection portion 511 .
  • the position of the stopper 513 corresponds to the position of the opening 541 , that is, when the lock hook 540 is arranged on the left side of the second board 531 , the stopper 513 is arranged on the left side of the second extension part 512 , Conversely, when the locking hook 540 is disposed on the right side of the second plate body 531 , the stop portion 513 is disposed on the right side of the second extension portion 512 .
  • the stop portion 513 is located in the opening 541 .
  • the free end of the lock hook 540 is located in the second gap 514, and abuts against the side of the stopper 513 close to the box body 10, thereby improving the tightness of the fit between the door body 20 and the box body 10, Prevent the effect of refrigeration and freezing of the refrigerator from being affected due to the lax closing of the door body 20 .
  • the locking hook 540 when the door body 20 is opened, the locking hook 540 will be deformed under force to overcome the blocking of the stop portion 513 , so that the locking hook 540 is disengaged from the stop portion 513 .
  • the locking hook 540 includes a third extending portion 542 and a bent portion 543 .
  • the third extension portion 542 is connected to one side (such as the left side or the right side) of the second board body 531 , and the third extension portion 542 is integrally formed with the second board body 531 .
  • One end of the bent portion 543 is fixedly connected to an end of the third extending portion 542 away from the second plate body 531 , and the other end of the bent portion 543 extends away from the second plate body 531 and approaches the second plate body 531 direction of bending.
  • the third extension 542 has a ninth through hole 5421, and the second end cover 220 has a tenth through hole 225 at a position corresponding to the ninth through hole 5421, and the third extension 542 can be connected with the third extension 542 by a fastener such as a screw.
  • the second end cover 220 is fixedly connected, which is beneficial to improve the connection strength between the third extension portion 542 and the second end cover 220 , so that only the bent portion 543 is deformed when the lock hook 540 is separated from the stop portion 513 .
  • the free ends of the bent portion 543 and the stop portion 513 are arc-shaped, so as to facilitate the engagement between the bent portion 543 and the stop portion 513.
  • the door body 20 when the door body 20 is closed to a preset closing angle from the open state, the door body 20 is automatically closed under the action of the bending portion 543 and the stop portion 513 .
  • the preset closing angle is less than 7°.
  • the second end cap 220 further includes a first protrusion 226 and a second protrusion 227 .
  • a gap groove 228 is formed between the first protrusion 226 and the second protrusion 227 .
  • the first protrusion 226 is closer to the door front wall 22 and closer to the door side wall 21 than the second protrusion 227.
  • the third extension part 542 further includes a plug board 5422 .
  • the socket plate 5422 is located at an end of the third extension portion 542 close to the bent portion 543 , and the socket plate 5422 matches the shape of the gap groove 228 .
  • the plug plate 5422 is inserted into the gap groove 228, so that the third extension part 542 can be limited, and the third extension part 542 can be prevented from being caught in the door body. 20 is deformed in the thickness direction.
  • the gap groove 228 is an arc-shaped groove
  • the plug plate 5422 is an arc-shaped plate matched with the gap groove 228, so that the contact between the gap groove 228 and the third extension portion 542 can be increased.
  • the area is beneficial to improve the connection strength between the second mounting block 530 and the second end cover 220 .
  • a tenth through hole 225 is formed in the first protrusion 226 .
  • the locking hook 540 may be disposed on at least one of the first mounting block 430 and the second mounting block 530 , and the stopper 513 is disposed on the first hinge plate 410 and the second hinge plate corresponding to the locking hook 540 At least one of 510 on.
  • any mounting block including at least one of the first mounting block 430 and the second mounting block 530
  • the corresponding receiving groove including the first receiving groove 213 and the second mounting block 213
  • the shape of at least one of the receiving grooves 223 also changes accordingly to accommodate the mounting block.
  • the installation block is made of polyoxymethylene (Polyformaldehyde, POM).
  • POM Polyoxymethylene
  • POM has the property of strong friction resistance, so that the service life of the mounting block can be extended.
  • the second end cover 220 further includes a limiting portion 229 .
  • the limiting portion 229 is disposed in the second end cover 220 and protrudes downward along the lower surface of the second end cover 220 .
  • the limiting portion 229 extends along the width direction of the door body 20 .
  • the limiting portion 229 is located at the front end of the second mounting block 530 .
  • the limiting part 229 is a sheet metal part.
  • the second hinge plate 510 further includes a limiting slot 515 .
  • the limiting groove 515 is located at the position of the second extension part 512 close to the door side wall 21 and close to the door front wall 22, and runs through the second extension part 512 along the thickness direction. extension 512 .
  • the limiting portion 229 includes an embedded portion 2291 and a limiting strip 2292 .
  • the embedding portion 2291 is plate-shaped, and is embedded between the second mounting block 530 and the groove wall of the second receiving groove 223 . That is to say, when the second mounting block 530 is embedded in the second receiving groove 223 , the side of the second plate 531 close to the door front wall abuts against the embedded portion 2291 to fix the embedded portion 2291 on the in the second receiving groove 223 .
  • the limit bar 2292 is connected with the embedded part 2291 and is located at the lower side of the embedded part 2291 .
  • the limiting strip 2292 extends along the width direction of the door body 20 .
  • the limiting bar 2292 abuts against the limiting slot 515, thereby preventing the door body 20 from continuing to rotate.
  • the limiting strip 2292 is integrally formed with the embedded part 2291 .
  • limiting part 229 is fixedly installed in the second receiving groove 223 through the clamping of the second mounting block 530 and the inner side wall of the second receiving groove 223, so that the limiting part 229 and the second end cover can be simplified. 220 connection structure.
  • the limiting portion 229 may also be disposed in the first end cover 210 , which will not be repeated here.
  • the first shaft 421 is in clearance fit with the first track groove 433
  • the second shaft 422 is in clearance fit with the second track groove 434 , so that deformation caused by manufacturing errors can be released.
  • the third shaft 521 is in interference fit with the third track groove 533
  • the fourth shaft 522 is in interference fit with the fourth track groove 534, so as to prevent abnormal noise when the lock hook 540 and the stopper 513 are disengaged, and realize the door body 20 mute on.
  • the first side edge W exceeds the reference plane M0 and moves to the outer side by no more than 5 mm, it is necessary to make the first side edge W of the door body 20 rotate during the rotation process.
  • One side edge W moves toward the inner side of the reference plane M0 to meet the requirement of inserting the refrigerator 1 into the cabinet 100 for use.
  • the process of opening or closing the door body 20 relative to the box body 10 will be introduced below mainly by taking the first hinge assembly 40 disposed on the upper part of the box body 10 as an example. It can be understood that the working principle of the second hinge assembly 50 is the same as that of the first hinge assembly 40 , which will not be repeated in this disclosure.
  • first hinge plate 410 After the first hinge plate 410 is fixedly connected to the box body 10, and the first shaft 421 and the second shaft 422 are fixedly connected to the first hinge plate 410, during the rotation of the door body 20 relative to the box body 10, the box body 10 remain stationary, thus the first hinge plate 410, the first shaft 421 and the second shaft 422 also remain stationary. At this moment, the first track groove 433 will move relative to the first axis 421 , and the second track groove 434 will move relative to the second axis 422 .
  • first track groove 433 and the second track groove 434 are static reference objects, the first axis 421 moves in the first track groove 433 , and the way that the second axis 422 moves in the second track groove 434 is described.
  • the first track groove 433 includes a straight groove segment and a curved groove segment connecting the straight groove segment.
  • the straight line groove section is farther away from the door side wall 21 than the curved groove section.
  • one end of the straight line slot is farther from the door side wall 21 than the other end of the straight line slot, that is, the straight line slot is parallel to the door front wall 22 .
  • One end of the curved groove section communicates with the other end of the straight groove section, and the other end of the curved groove section extends toward the door side wall 21 and the door front wall 22 .
  • the curved groove section protrudes toward the direction close to the door side wall 21 and close to the door rear wall 23 , in this case, the second side edge N is located on the convex side of the curved groove section.
  • the center track of the first track groove 433 is marked as the first track line S, and it can be understood that the first track line S is defined by the shape of the first track groove 433 .
  • the first track S includes a straight line track segment and a curved track segment connected to the straight line track segment.
  • One end of the straight track segment is farther away from the door side wall 21 than the other end of the straight track segment, one end of the curved track segment is connected to the other end of the straight track segment, and the other end of the curved track segment is One end extends in a direction close to the door side wall 21 and close to the door front wall 22 .
  • the second lateral edge N is located on the convex side of the curved track segment.
  • connection point of the straight line trajectory segment and the curved trajectory segment is marked as the second positioning point P 2 (see FIG. 15B ), and the straight line trajectory segment and the curved trajectory segment are tangent at point P2 .
  • the first shaft 421 moves in the first track groove 433 from the one end of the straight track segment to the second positioning point P2 along the straight track segment, and then moves along the curved track segment. curve movement.
  • the second track groove 434 is a similar elliptical arc groove; one end of the second track groove 434 is farther away from the door side wall 21 and closer to the door front wall 22 than the other end of the second track groove 434 .
  • the second track groove 434 protrudes away from the door side wall 21 and away from the door front wall 22 , in this case, the first side edge W is located on the concave side of the second track groove 434 .
  • the center trajectory line of the second trajectory groove 434 is marked as the second trajectory line K. It can be understood that, defined by the shape of the second trajectory groove 434, the second trajectory line K is in the shape of an elliptical arc. One end of the second trajectory line K is farther from the door side wall 21 and closer to the door front wall 22 than the other end of the second trajectory line K, and the first side edge W is located on the concave side of the second trajectory line K.
  • the first track groove 433 is located on the concave side of the second track groove 434 .
  • the first shaft 421 relatively makes a linear motion in the straight track segment
  • the second shaft 422 relatively makes a curved motion in the second track groove 434, so that The door body 20 can move a certain distance to the inner side of the reference plane M0 while rotating, so that the door body 20 can be prevented from colliding with the cabinet 100 when it is opened.
  • the elliptical arc-like groove is a groove having a center trajectory line (such as the second trajectory line K) of a similar ellipse arc.
  • the quasi-elliptical arcs include standard elliptical arcs (that is, a part of a standard ellipse), and non-standard elliptical arcs that are different from standard elliptical arcs but still have elliptical arc trajectory characteristics due to manufacturing, assembly errors, or slight deformation.
  • both the first shaft 421 and the second shaft 422 are cylindrical, and the orthographic projection of the central axis of the first shaft 421 in the first track groove 433 is marked as the positioning center point P, and the second The orthographic projection of the central axis of the shaft 422 in the second track groove 434 is recorded as the guiding center point Q.
  • X represents the distance between the change point and the door side wall 21
  • Y represents the distance between the change point and the door front wall 22
  • X 1 represents the distance between the positioning center point P and the door side wall 21
  • Y 1 represents the distance between the positioning center point P and the door front wall 22
  • X2 represents the distance from the guide center point Q to the door side wall 21
  • Y2 represents the distance from the guide center point Q to the door front wall 22.
  • the second track groove 434 is an elliptical groove
  • the second track line K is an elliptical arc
  • c is the distance between the center of the ellipse O and the door side wall 21
  • d is the distance between the center of the ellipse O and the front wall 22 of the door
  • ⁇ is the inclination angle of the ellipse
  • t is a parameter
  • f is the semi-major axis of the ellipse
  • g is the short length of the ellipse. half axis.
  • the distance between the positioning center point P and the door side wall 21 is a
  • the distance between the positioning center point P and the door front wall 22 is b
  • the distance between the positioning center point P and the guide center The distance between the points Q is L
  • the angle formed by the connection line between the positioning center point P and the guiding center point Q (axis segment PQ) and the plane where the door front wall 22 is located is n.
  • 14A to 14J show the structural diagrams of the first hinge assembly 40 when the door body 20 is opened to different angles. It can be understood that the first shaft 421 moves along the first track groove 433, which is equivalent to positioning the center point P along the first track groove 433. A track line S moves, and the second shaft 422 moves along the second track groove 434 , which is equivalent to the guiding center point Q moving along the second track line K.
  • the first trajectory S includes an initial positioning point P 0 and a seventh positioning point that is closer to the door side wall 21 and closer to the door front wall 22 than the initial positioning point P 0 P7 .
  • the first trajectory line S extends from the initial positioning point P0 to the direction close to the door side wall 21, and then in a certain arc to the direction close to the door side wall 21 and close to the door front wall 22. Extend to the seventh positioning point P 7 .
  • the seventh positioning point P7 is the other end of the first trajectory S.
  • the second trajectory line K includes a guide start point Q 0 and a ninth guide point Q 9 closer to the door side wall 21 and farther from the door front wall 22 than the guide start point Q 0 .
  • the second trajectory line K extends from the guiding starting point Q 0 toward the door side wall 21 and away from the door front wall 22 to the ninth guiding point Q 9 , and the second trajectory line K is roughly elliptical.
  • the first trajectory S is closer to the door front wall 22 and closer to the door side wall 21 than the second trajectory K, that is, the first trajectory S is located on the concave side of the second trajectory K.
  • the second track groove 434 can effectively limit the movement of the second shaft 422 and cooperate with the movement of the first shaft 421 in the first track groove 433 , so that, when the door body 20 is opened, the movement of the first shaft 421 Driven by the second shaft 422 , the door body 20 moves a certain distance to the inner side while rotating, so as to ensure the stability of the door body 20 when it is opened.
  • the following will take the maximum opening angle G 9 of the refrigerator > 90° (that is, the ninth angle greater than 90°) as an example to describe in detail how the door 20 rotates and opens to different angles when the door 20 is opened from the closed state to the maximum angle G 9 .
  • centroid plane F a plane passing through the centroid of the door body 20 and parallel to the front wall 22 of the door.
  • the positioning center point P is located at the initial positioning point P 0 of the first trajectory line S, and the guiding center point Q is located at the first trajectory line S.
  • the two trajectory lines K lead to the starting point Q 0 .
  • the guiding center point Q and the positioning center point P are located on the same side of the centroid plane F, and the guiding center point Q is farther away from the centroid plane F than the positioning center point P.
  • the first axis 421 moves toward the side wall 21 of the door along the straight line segment of the first trajectory S. direction
  • the second axis 422 moves in a direction close to the side wall 21 of the door and away from the front wall 22 of the door.
  • the guiding center point Q and the positioning center point P are located on the same side of the centroid plane F, and the guiding center point Q is farther away from the centroid plane F than the positioning center point P.
  • opening angle of the door body 20 is greater than 0° and less than G2
  • selecting any opening angle greater than 0° and less than G2 can represent that when the door body 20 is opened to the corresponding interval, the first axis 421 and the second axis The relative position of a track groove 433 and the relative position of the second shaft 422 and the second track groove 434 .
  • the opening angle of the door body 20 is G 1 (for example, G 1 is greater than 0° and less than G 2 ) to represent the position within the opening angle range, so as to be consistent with the opening angle of the door body 20 to Compare with other angles.
  • the positioning center point P is located at the first positioning point P1 of the first trajectory line S, and the first positioning point P1 is closer to the door side wall 21 than the initial positioning point P0 .
  • the guide center point Q is located at the first guide point Q1 of the second trajectory line K, and the first guide point Q1 is closer to the door side wall 21 and farther away from the door front wall 22 than the initial guide point Q0 .
  • the positioning center point P is located at the second positioning point P 2 on the straight track segment of the first trajectory line S, and the second positioning point P 2 is closer to the door side wall 21 than the first positioning point P 1 .
  • the second positioning point P2 is an end point of the straight line trajectory segment close to the door side wall 21 .
  • the guiding center point Q is located at the second guiding point Q 2 of the second trajectory line K, and the second guiding point Q 2 is closer to the door side wall 21 and farther away from the door front wall 22 than the first guiding point Q 1 .
  • the first shaft 421 always moves along the straight line groove to the direction close to the door side wall 21, and the second shaft 422 moves along the second track groove 434. Move in a direction close to the door side wall 21 and away from the door front wall 22 .
  • G 2 can be set to any value from 13° to 17°.
  • G2 can be 13°, 14°, 15° or 17°.
  • the guiding center point Q and the positioning center point P are located on the same side of the centroid plane F, and the guiding center point Q is closer to the centroid plane F than the positioning center point P.
  • the first matching portion when the door body 20 is opened to a preset unlocking angle, the first matching portion is disengaged from the second matching portion.
  • the unlocking angle is set to G 1 , that is, when the door body 20 is opened to G 1 , the locking hook 540 is disengaged from the stopper portion 513 .
  • the unlocking angle is set to G 2 , that is, when the door body 20 is opened to G 2 , the locking hook 540 is disengaged from the stopper portion 513 .
  • any opening angle greater than G2 and less than G7 can represent that when the door body 20 is opened to this interval, the first axis 421 and the second axis A relative position of the track groove 433 , and a relative position of the second axis 422 and the second track groove 434 .
  • G 3 , G 4 , G 5 , and G 6 are used to represent the positions within the opening angle range, for comparison with when the door body 20 is opened to other states.
  • the guiding center point Q moves along the second trajectory K toward the direction close to the door side wall 21 and away from the door front wall 22 to the third guiding point Q 3 , the fourth guiding point Q 4 , and the fifth guiding point Q 5 and a sixth guiding point Q 6 .
  • G3 is any value between 22° and 30°.
  • the third angle G3 is 22°, 25°, 28° or 30°.
  • G 4 is any value from 43° to 47°.
  • G4 is 43°, 45° or 47°.
  • the distance of the first side edge W beyond the reference plane M0 reaches a maximum value.
  • the distance between the first side edge W and the reference plane M0 is smaller than the width of the first gap 101 , thereby effectively preventing the door 20 from colliding with the cabinet 100 during opening.
  • G5 is any value from 46° to 50°.
  • G5 is 46°, 48° or 50°, that is to say, when the door body 20 is opened to about 48°, the distance from the first side edge W beyond the reference plane M0 reaches the maximum.
  • the guide center point Q moves to the middle point Q 6 of the second trajectory line K.
  • the straight line Q 0 -Q 9 where the initial guide point Q 0 and the ninth guide point Q 9 are located (the straight line where the two ends of the second trajectory line K are located) is approximately parallel to the reference plane M0, that is, The perpendicular bisector L0 of the line segment Q 0 Q 9 is approximately perpendicular to the reference plane M0.
  • approximately vertical is defined as the angle between the vertical bisector L0 and the reference plane M0 being any value from 88° to 92°.
  • the above setting defines the extension direction of the second track groove 434, so that when the door body 20 is opened, the synchronous movement of the first shaft 421 relative to the first track groove 433 and the second shaft 422 relative to the second track groove 434 is smoother. , which is conducive to improving the fluency and stability of opening the door body 20 .
  • the included angle between the line where the major axis of the ellipse where the second trajectory line K is located and the reference plane M0 is G6 , which is beneficial to improve the opening of the door body 20. fluency.
  • the straight line where the line segment Q 0 Q 9 is located is parallel to the major axis of the ellipse where the second trajectory line K is located, so that the curvature of the second trajectory line K changes more gently, which is conducive to improving the second axis 422 along the second The smoothness of the track groove 434 movement.
  • G 6 is equal to or close to G9/2, eg, G 6 ⁇ [G 9 /2 ⁇ 6°, G 9 /2]. Then, when the door body 20 is opened to G6 , the guiding center point Q moves to the middle point of the second trajectory line K. In this way, during the opening process of the door body 20 , the movement track of the second shaft 422 relative to the second track groove 434 is more stable, which is beneficial to improve the smoothness of opening the door body 20 .
  • G 9 is any value from 112° to 120°, for example, G 9 is 112°, 115°, 118° or 120°.
  • G 6 is any value from 50° to 60°, for example, 50°, 53°, 56° or 60°.
  • the centroid plane F of the door body 20 is located between the positioning center point P and the guiding center point Q.
  • the positioning center point P is located at the seventh positioning point P7 on the first trajectory line S, and the guiding center point Q is located at the second trajectory line K.
  • the seventh positioning point P 7 is closer to the door side wall 21 and closer to the door front wall 22 than the sixth positioning point P 6
  • the seventh guiding point Q 7 is closer to the door side wall 21 and farther away from the door front wall 22 than the sixth guiding point Q 6 .
  • the positioning center point P moves to the other end of the curved track segment of the first track line S.
  • the centroid plane F of the door body 20 is located between the positioning center point P and the guiding center point Q.
  • G 7 can be set to any value from 63° to 67°.
  • G7 can be 63°, 64°, 65° or 67°.
  • the first axis 421 when the door body 20 is opened from any value greater than G 7 to G 9 (about 116°), the first axis 421 The curved track segment along the first track line S moves toward the door side wall 21 and the door front wall 22, and the second axis 422 moves along the second track line K toward the door side wall 21 and away from the door front wall 22. sports.
  • any opening angle greater than G7 and less than or equal to G9 can represent that when the door body 20 is opened to this interval, the first axis 421 relative to the first track groove 433 , and the relative position of the second axis 422 to the second track groove 434 .
  • G 8 and G 9 represent positions within the opening angle range for comparison with when the door body 20 is opened to other states.
  • G 7 ⁇ G 8 90° ⁇ G 9 .
  • the positioning center point P is located at the eighth positioning point P8 on the first trajectory line S, and the guiding center point Q is located at the 8th positioning point P8 on the second trajectory line K Eight guiding points Q 8 .
  • the eighth positioning point P8 is farther away from the door side wall 21 and away from the door front wall 22 than the seventh positioning point P7, and the eighth guiding point Q8 is closer to the door side wall 21 and farther away from the door than the seventh guiding point Q7 .
  • Front wall 22 At this time, the centroid plane F is located between the positioning center point P and the guiding center point Q.
  • the positioning center point P is located at the ninth positioning point P9 on the first trajectory line S, and the guiding center point Q is located at the 9th positioning point on the second trajectory line K
  • the ninth positioning point P9 is farther away from the door side wall 21 and away from the door front wall 22 than the eighth positioning point P8, and the ninth guiding point Q9 is closer to the door side wall 21 and farther away from the door than the eighth guiding point Q8 .
  • the centroid plane F is located between the positioning center point P and the guiding center point Q.
  • G 1 , G 2 , G 3 , G 4 , G 5 , G 6 , G 7 , G 8 and G 9 are sequentially recorded as the first angle G 1 , the second angle G 2 , and the third angle G 3 , fourth angle G 4 , fifth angle G 5 , sixth angle G 6 , seventh angle G 7 , eighth angle G 8 and maximum angle G 9 .
  • the initial positioning point P 0 , the first positioning point P 1 and the second positioning point P 2 are distributed along the straight track segment toward the direction close to the door side wall 21, the third positioning point P 3 , the fourth positioning point P 4 , the fifth positioning point
  • the positioning point P 5 , the sixth positioning point P 6 and the seventh positioning point P 7 are distributed along the curved track segment in a direction close to the door side wall 21 and close to the door front wall 22 .
  • the seventh positioning point P 7 , the eighth positioning point P 8 and the ninth positioning point P 9 are distributed along the curved track segment in a direction away from the door side wall 21 and away from the door front wall 22 .
  • the present disclosure compares the ninth positioning point P 9 and the eighth positioning point P 8 with the third positioning point P 3 , the fourth positioning point P 4 , the fifth positioning point P 5 and the sixth positioning point P 6
  • the relative position is not limited.
  • the eighth positioning point P 8 is located between the sixth positioning point P 6 and the seventh positioning point P 7
  • the ninth positioning point P 9 is close to the third positioning point P 3 .
  • the seven guiding points Q 7 , the eighth guiding point Q 8 and the ninth guiding point Q 9 are distributed along the first trajectory line S in a direction close to the door side wall 21 and away from the door front wall 22 in sequence.
  • the first shaft 421 moves toward the side wall 21 of the door along the straight section of the first track groove 433 .
  • the first shaft 421 moves along the first track groove 433 in a direction close to the door side wall 21 to the other end of the straight line groove section (the second anchor point P 2 ).
  • the first shaft 421 moves along the curved groove section of the first track groove 433 toward the door side wall 21 and the door front wall 22 .
  • the first shaft 421 moves along the first track groove 433 to the direction close to the door side wall 21 and close to the door front wall 22 to the said curved groove section.
  • the other end (the seventh positioning point P 7 ).
  • the first axis 421 moves away from the door side wall 21 and away from the door front wall 22 along the curved groove section of the first track groove 433. sports.
  • the second axis 422 is always close to the side wall 21 of the door and away from the front wall 22 of the door along the second track groove 434. direction movement.
  • first shaft 421 and the second shaft 422 are fixed on the first hinge plate 410 and are stationary relative to the first hinge plate 410 , and the first track groove 433 and the second track groove 434 are provided on the door body 20 Therefore, the movement of the axis segment PQ relative to the track groove (including the first track groove 433 and the second track groove 434 ) is equivalent to the movement of the first hinge plate 410 relative to the door body 20 .
  • the movement of the axis segment PQ relative to the track groove is also equivalent to the movement of the box body 10 relative to the door body 20 .
  • the movement of the door 20 relative to the box 10 can be obtained from the movement of the box 10 relative to the door 20 .
  • the movement of the box body 10 relative to the door body 20 will be represented by the movement of the axis line segment PQ relative to the door body 20, and the door body 20 will be pushed out relative to the box body 10 according to the principle of relative motion. of sports conditions.
  • the whole process of opening the door body 20 can be divided into three stages.
  • the three stages will be described in detail in conjunction with the cooperation relationship between the first biaxial assembly 420 and the track groove and the movement track of the axis segment PQ.
  • the door body 20 is opened from 0° through the first angle G 1 to the second angle G 2 .
  • the positioning center point P moves from the initial positioning point P 0 along the straight track segment of the first trajectory line S to the direction close to the door side wall 21, and the guide center point Q moves from the initial guide point Q 0 along the first track line S.
  • the two trajectory lines K move in a direction close to the door side wall 21 and away from the door front wall 22 .
  • the positioning center point P moves from the initial positioning point P 0 to the second positioning point P 2 through the first positioning point P 1 along the straight track segment of the first trajectory line S.
  • the guiding center point Q moves from the initial guiding point Q 0 to the second guiding point Q 2 along the second trajectory K through the first guiding point Q 1 .
  • the axis segment PQ moves toward the outside while rotating.
  • the axis line segment PQ rotates clockwise from P 0 Q 0 and moves to P 1 Q 1 and P 2 Q 2 in sequence toward the outer side.
  • first track groove 433 and the second track groove 434 are stationary relative to the door body 20
  • the axis segment PQ is stationary relative to the box body 10
  • the movement of the axis line segment PQ can represent the movement of the box body 10 . Therefore, taking the door body 20 as a reference object, when the door body 20 is opened from the closed state to the second angle G2 , the box body 10 rotates clockwise relative to the door body 20 and moves a certain distance to the outside.
  • the relativity of motion when the box body 10 is used as a reference object, when the door body 20 is opened from the closed state to the second angle G2 , the door body 20 rotates counterclockwise relative to the box body 10 and moves to the inner side. a certain distance.
  • the door body 20 passes through the third angle G 3 , the fourth angle G 4 , the fifth angle G 5 , and the sixth angle in sequence from the second angle G 2 G 6 opens to a seventh angle G 7 .
  • the positioning center point P passes through the third displacement point P 3 , the The fourth displacement point P 4 , the fifth displacement point P 5 , the sixth displacement point P 6 move to the seventh displacement point P 7 .
  • the guiding center point Q passes through the third guiding point Q 3 , the fourth guiding point Q 4 , and the fifth guiding point Q from the second guiding point Q 2 along the second trajectory K toward the door side wall 21 and away from the door front wall 22 in sequence.
  • the point Q 5 and the sixth guiding point Q 6 move to the seventh guiding point Q 7 .
  • the axis segment PQ moves toward the outside while rotating.
  • the axis segment PQ rotates clockwise from P2Q2 and moves to the outside in sequence to P3Q3 , P4Q4 , P5Q5 , P6Q6 and P7Q7 .
  • first track groove 433 and the second track groove 434 are stationary relative to the door body 20
  • the axis segment PQ is stationary relative to the box body 10
  • the movement of the axis line segment PQ can represent the movement of the box body 10 . Therefore, when the door body 20 is used as a reference object, when the door body 20 is opened from the second angle G2 to the seventh angle G7 , the box body 10 rotates clockwise relative to the door body 20 and along the curved track segment Move to the outside and to the front side (the direction close to the door body 20).
  • the door body 20 when the box body 10 is used as a reference object, when the door body 20 is opened from the second angle G2 to the seventh angle G7, the door body 20 rotates counterclockwise relative to the box body 10 and moves along the The curved track segment moves to the inner side and to the rear side (the direction close to the box body 10 ).
  • the door body 20 when the first side edge W moves to the outside due to the rotation of the door body 20, it also moves to the inside due to the movement of the door body 20 to the inside, thereby preventing the door body 20 from colliding with the cabinet. 100 interference.
  • the door body 20 also moves toward the direction close to the box body 10 while rotating, so that the door body 20 can also be prevented from moving too much in a direction away from the box body 10 due to rotation, thereby helping to improve the relationship between the door body 20 and the box body.
  • the door body 20 is opened from the seventh angle G 7 (about 90°) to the maximum angle G 9 through the eighth angle G 8 .
  • the positioning center point P moves from the seventh displacement point P7 along the above-mentioned curved track segment of the first track line S to the direction away from the door side wall 21 and away from the door front wall 22, passing through the eighth positioning point P8 to Ninth displacement point P 9 .
  • the guiding center point Q moves from the seventh guiding point Q 7 to the ninth guiding point Q 9 along the second trajectory K toward the door side wall 21 and away from the door front wall 22 through the eighth guiding point Q 8 .
  • the axis segment PQ is clockwise Move toward the inside while rotating.
  • the axis segment PQ rotates clockwise from P7Q7 and moves to the inner side to P8Q8 and P9Q9 .
  • first track groove 433 and the second track groove 434 are stationary relative to the door body 20
  • the axis segment PQ is stationary relative to the box body 10
  • the movement of the axis line segment PQ can represent the movement of the box body 10 .
  • the box body 10 rotates clockwise relative to the door body 20 and moves to the inner side and backward. side (direction away from the door body 20) movement.
  • the door body 20 rotates counterclockwise relative to the box body 10 and The outer side and move to the front side (direction away from the box body 10).
  • the first side edge W can be made to Driven by the door body 20 , it moves away from the box body 10 to prevent the first side edge W from interfering with the box body 10 .
  • the door body 20 since the door body 20 moves to the outside, the door body 20 can be opened to a larger angle in the third stage, and the door body 20 can be prevented from blocking the access opening.
  • the door body 20 when the door body 20 is opened from the closed state to the seventh angle G7 , the door body 20 always maintains a tendency to move inward. Relative to the closed state of the door body 20, when the door body 20 is opened to the seventh angle G7 , the distance that the door body 20 moves to the inner side is recorded as the first distance D1.
  • the door body 20 when the door body 20 is opened from the closed state to the maximum angle G9 , the door body 20 rotates around a dynamically changing axis, and the dynamically changing axis first moves to the inner side by a first distance D1, and then The second distance D2 is moved to the outside, so that the door body 20 first moves to the inside by the first distance D1, and then moves to the outside by the second distance D2.
  • the first shaft 421 always moves relative to the first track groove 433
  • the second shaft 422 always moves relative to the second track groove 434 .
  • the relative positional relationship between the centroid plane F and the first axis 421 and the second axis 422 changes constantly.
  • the first axis 421 and the second axis 422 are located on the same side of the plane F of the center of mass.
  • the centroid plane F is located between the first axis 421 and the second axis 422 .
  • the centroid plane F is always located between the first axis 421 and the second axis 422, which is beneficial to improve The stability of the door body 20 during opening.
  • the midpoint of the axis line segment PQ is marked as the axis midpoint E.
  • the distance between the center point E of the axis and the centroid plane F is recorded as the offset distance I.
  • the offset distance I is a positive number; when the central point E of the axis is located on the side of the centroid plane F away from the front wall 22 of the door, the offset The distance I is a negative number, and when the center point E of the axis is located on the centroid plane F, the offset distance I is 0.
  • the offset distance I between the central point E of the axis and the plane F of the center of mass decreases.
  • the offset distances are recorded sequentially. are I 4 , I 5 , I 6 , I 7 , I 8 and I 9 , wherein, I 4 >I 5 >I 6 >I 7 >I 8 >0 ⁇ I 9 .
  • the offset distance I between the axis center point E and the centroid plane F is set as: as the opening angle of the door body 20 increases, the offset distance I decreases, that is, as As the opening angle of the door body 20 increases, the center-of-mass plane F moves accordingly and approaches the midpoint of the axis segment PQ, thereby enhancing the stability of the door body 20 during opening.
  • the center point E of the axis is located on the centroid plane F, and the offset distance I is 0.
  • the angle G a is any value from 110° to 116° (such as 110°, 113°, 116°), so, referring to Fig. 14J, when the door body 20 is opened to the maximum angle G9 , the centroid plane F is close to
  • the central point E of the axis (for example, I9 is any value from -1mm to 1mm), which is beneficial to improve the stability when the door body 20 is opened to the maximum angle G9 .
  • the offset distance I is any value from -4mm to 4mm (such as -4mm, 0 or 4mm), so as to effectively enhance the stability when the door body 20 is opened to a larger angle (eg, the door body is opened to the eighth angle G8 to the maximum angle G9 ).
  • the first axis 421 moves along the first
  • the linear groove section of the track groove 433 moves linearly
  • the door body 20 moves a third distance D3 (ie, the first marginal distance) to the inner side every time the door body 20 is rotated and opened for a unit angle.
  • the first shaft 421 makes a curved movement along the curved groove section of the first track groove 433
  • the door body 20 moves to the inner side by a fourth distance D4 (ie, the second marginal distance) every time the door body 20 is rotated and opened by a unit angle, and the third distance D3>the fourth distance D4.
  • the distance that the door body 20 moves to the inner side per opening unit angle is large, so that the door body 20 drives the first side edge W to move the distance to the inner side.
  • the distance between the first side edge W and the reference plane M0 is smaller than the width of the first gap 101 to prevent the first side edge W from colliding with the cabinet 100 .
  • the first axis 421 moves away from the door side wall 21 and away from the door side wall 21 along the first trajectory line S.
  • the direction of the door front wall 22 is withdrawn.
  • the stage in which the door body 20 is opened from the seventh angle G7 to the eighth angle G8 is marked as the first withdrawing stage, and the stage in which the door body 20 is opened from the eighth angle G8 to the maximum angle G9 is marked as the second withdrawing stage.
  • the door body 20 moves a fifth distance D5 to the outer side every time the door body 20 is rotated to open a unit angle.
  • the door body 20 moves outward by a sixth distance D6 per unit angle of rotation, and the sixth distance D6>the fifth distance D5.
  • the fifth distance D5 the sixth distance D6 ⁇ [0.05, 0.1].
  • the door body 20 is opened from the seventh angle G 7 (about 65°) to the eighth angle G 8 (about 90°), and every unit angle of the door body 20 is opened, toward the The distance of the outer movement is small, so that the door body 20 can be prevented from exceeding the reference plane M0 too much when it is opened to 90°, so that the door body 20 can continue to open to a larger angle.
  • the door body 20 is opened from 90° to the maximum angle G 9 , and the distance that the door body 20 moves to the outside is large for every unit angle of opening of the door body 20, so that the door body 20 can be prevented from blocking the access opening , which is conducive to improving the user experience when picking and placing ingredients.
  • the positioning center point P when the door body 20 is opened to the maximum angle G 9 , the positioning center point P is located at the ninth positioning point P 9 , and when the door body 20 is opened to the third angle G 3 , the positioning center point P is located at the third positioning point P 3 .
  • the maximum angle G 9 is approximately 90° different from the third angle G 3 , and the ninth positioning point P 9 is close to the third positioning point P 3 .
  • the difference between the maximum angle G9 and the third angle G3 is any value between 88° and 92° (such as 88°, 90° or 92°).
  • the distance between the ninth positioning point P9 and the third positioning point P3 is not greater than 1 mm.
  • the first shaft 421 first moves from the third positioning point P3 to a direction close to the door side wall 21 and close to the door front wall to the seventh positioning point P 7 , and then move to the direction away from the door side wall 21 and away from the door front wall 22 to the ninth positioning point P 9 close to the third positioning point P 3 .
  • the first shaft 421 approximately performs a reciprocating motion.
  • the first shaft 421 can move back and forth in the middle of the first track groove 433 , which is beneficial to lower the position of the first track groove 433 on the door.
  • the dimension in the thickness direction of the door body 20 is beneficial to reduce the thickness of the door body 20 .
  • the second track groove 434 includes a first curved groove and a second curved groove
  • the second track line K includes a first curved segment and a second curved segment.
  • One end of the first curved section is closer to the door front wall 22 and farther away from the door side wall 21 than the other end of the first curved section
  • one end of the second curved section is connected to the other end of the first curved section
  • the other end of the second curved section extends toward the door side wall 21 and away from the door front wall 22 .
  • the first side edge W is located on the concave side of the first curve segment and is located on the convex side of the second curve segment.
  • the second shaft 422 moves in the second curved groove, and the guiding center point Q moves from the one end of the second curved segment to The other end; at the same time, the first shaft 421 moves in the first track groove 433 .
  • the second trajectory groove 434 includes a third curved groove and a fourth curved groove
  • the second trajectory line K includes a third curved section and a fourth curved section.
  • One end of the third curved section is closer to the door front wall 22 and farther away from the door side wall 21 than the other end of the third curved section
  • one end of the fourth curved section is connected to the other end of the third curved section
  • the other end of the fourth curved section extends toward the direction close to the door side wall 21 and close to the door front wall 22 .
  • the first side edge W is located on the concave side of the third curve segment and is located on the concave side of the fourth curve segment.
  • the second shaft 422 moves in the second curved groove, and the guiding center point Q moves from the one end of the fourth curved segment to the the other end; at the same time, the first shaft 421 moves in the first track groove 433 .
  • the positioning center point P of the first axis 421 is located at the initial positioning point P 0 of the first trajectory line S, and the initial positioning point P 0 is in line with the reference
  • the distance of the plane M0 is L 1 (ie the first preset distance).
  • the door front wall 22 is approximately parallel to the plane where the access opening is located, and is approximately perpendicular to the reference plane M0.
  • the door front wall 22 is approximately parallel to the side wall 12 of the box body; the positioning center point P of the first axis 421 is located at the eighth positioning point of the first trajectory line S P 8 , and the distance between the positioning center point P and the door front wall 22 is L 2 (ie, the second preset distance).
  • the door front wall 22 is approximately located in the reference plane M0. If L 1 is greater than L 2 , the door front wall 22 is located on the inner side of the reference plane M0. If L 1 is smaller than L 2 , the door front wall 22 is located outside the reference plane M0.
  • L 1 and L 2 can be set such that L 1 is smaller than L 2 , and the difference between L 2 and L 1 is less than 0.2 times the width of the first gap 101, so that the door body 20 can be improved from 90 ° Stability during opening to larger angles.
  • a plane located outside the reference plane M0 is defined as the first reference plane M1
  • the first reference plane M1 is parallel to the reference plane M0
  • the plane between the reference plane M0 The distance is the width of the first gap 101 (ie, 3 mm to 5 mm).
  • the first reference plane M1 is a plane where an inner wall of the cabinet 100 close to the reference plane M0 is located.
  • the plane where the pick-and-place opening is located is defined as the second reference plane M2, and the second reference plane M2 is perpendicular to the first reference plane M1.
  • the first reference plane M1 and the second reference plane M2 remain stationary relative to the box body 10, that is to say, during the opening process of the door body 20 relative to the box body 10, the first reference plane M1 and the second reference plane M2 will not move with each other. The movement of the door body 20 moves.
  • the horizontal reference plane is perpendicular to the first reference plane M1 and the second reference plane M2, and the first side edge W and the second side edge N are perpendicular to the the horizontal reference plane.
  • the orthographic projection of the first side edge W on the horizontal reference plane is the first projection point W', and the orthographic projection of the second side edge on the horizontal reference plane is the second projection point N'.
  • the second reference plane M2 is the plane where the pick-and-place opening defined by the box body 10 is located, and it does not move forward due to the arrangement of deformable door seals and other components at the pick-and-place opening of the box body.
  • the first projection point W' is close to the first reference plane M1 and close to the second reference plane M1 along the first side edge track W 0 W 5 Movement in the direction of plane M2. That is to say, when the door body 20 is opened from the closed state to the fifth angle G5 , the distance between the first side edge W and the first reference plane M1 tends to decrease, and the first side edge W exceeds the reference plane M0 distance tends to increase. When the door body 20 is opened to the fifth angle G5 , the distance from the first side edge W beyond the reference plane M0 is the largest, and the distance from the first reference plane M1 is the smallest.
  • the first side edge W can be prevented from colliding with the cabinet 100 when the door body 20 is opened.
  • the second projected point N' moves away from the first reference plane M1 and approaches the second reference plane M2 along the second side edge trajectory N 0 N 3 direction, and then move in a direction away from the first reference plane M1 and away from the second reference plane M2 along the second side edge track N 3 N 5 .
  • the distance M2 between the second side edge N and the second reference plane tends to decrease.
  • the distance between the second side edge N and the second reference plane M2 tends to increase.
  • the distance between the second side edge N and the second reference plane M2 is the smallest. Such setting can effectively prevent the second side edge N from interfering with the box body 10 when the door body 20 is opened.
  • both the first side edge track W 0 W 5 and the second side edge track N 0 N 5 are smooth curves.
  • the distance between the first side edge track W 0 W 5 and the first reference plane M1 is greater than the seventh distance D7, that is, the first side edge track W 0 W 5 is closest to the first reference plane M1
  • the distance between the first side edge locus point W5 and the first reference plane M1 is greater than the seventh distance D7.
  • the distance between the second side edge track N 0 N 5 and the second reference plane M2 is greater than the eighth distance D8.
  • the thickness of the door body is Da, then the seventh distance D7 is not less than 0.5*Da and not greater than 0.75*Da.
  • the eighth distance D8 is not less than 0.12*Da and not greater than 0.2*Da.
  • the seventh distance D7 may be 0.676*Da
  • the eighth distance D8 may be 0.165*Da.
  • Such arrangement makes it possible to maintain a proper distance between the second side edge N and the box body 10 when the door body 20 is opened from the closed state to the fifth angle G5 .
  • the second side edge N will not press the box body 10 , nor will it be too far away from the box body 10 , resulting in a decrease in the integrity of the door body 20 and the box body 10 .
  • the distance from the first side edge W beyond the reference plane M0 is small, so that the first side edge W will not collide with the inner wall of the cabinet 100, And it is beneficial to improve the stability of the door body 20 .
  • the included angle between the moving direction of the first side edge W and the first reference plane M1 is denoted as the first angle G5.
  • An included angle in one direction, the included angle in the first direction is less than 15°.
  • the angle between the moving direction of the second side edge N and the second reference plane M2 is recorded as the second direction angle, and the second direction angle is less than 25°.
  • the movement direction of the first side edge W is the tangent direction of the first side edge track W 0 W 5 where the first projected point W' is located on the first side edge track W 0 W 5 ;
  • the second side The moving direction of the edge N is the tangent direction of the second side edge track N 0 N 5 at the corresponding position of the second projected point N′ on the second side edge track N 0 N 5 .
  • the included angle in the first direction formed by the moving direction of the first side edge W and the first reference plane M1 tends to decrease.
  • the angle between the movement direction of the second side edge N and the second reference plane M2 in the second direction decreases, and the angle in the second direction first decreases to 0°, and then continues to decrease to a negative angle, Therefore, during the opening process of the door body 20 , the second side edge N first approaches the second reference plane M2 and then moves away from the second reference plane M2 .
  • Such setting is beneficial to improve the fluency of opening the door body 20 and avoid jamming.
  • the orthographic projection of the first side edge trajectory W 0 W 5 on the first reference plane M1 is a line segment W 0 'W 5 '
  • the orthographic projection of the second side edge trajectory N 0 N 5 on the second reference plane M2 is the line segment N 0 'N 5 '
  • the ratio of the length of the line segment W 0 'W 5 ' to the length of the line segment N 0 'N 5 ' is Between 0.3 and 0.7, for example, the ratio of the length of the line segment W 0 'W 5 ' to the length of the line segment N 0 'N 5 ' is 0.3, 0.4, 0.5 or 0.7.
  • the first projected point W' moves away from the first reference plane M1 and approaches the first reference plane M1 along the first side edge track W5W9.
  • the second projection point N' moves along the second side edge trajectory N 5 N 9 in a direction away from the second reference plane M2 and away from the first reference plane M1, and the distance between the second side edge N and the second reference plane M2 increases.
  • first side edge track W 5 W 9 and the second side edge track N 5 N 9 are smooth curves, and the first side edge track W 0 W 5 and the third side edge track W 5 W 9 are smooth transition connection, and the second side edge track N 0 N 5 is smoothly transition connected with the second side edge track N 5 N 9 .
  • the angle between the moving direction of the first side edge W and the first reference plane M1 is recorded as the angle in the third direction
  • the included angle in the third direction is less than 40°.
  • the included angle between the moving direction of the second lateral edge N and the second reference plane M2 is recorded as the included angle of the fourth direction, and the included angle of the fourth direction is less than 90°.
  • the movement direction of the first side edge W is the tangent direction of the first side edge track W 5 W 9 corresponding to the position of the first projected point W' on the first side edge track W 5 W 9 ;
  • the second The moving direction of the side edge N is the tangent direction of the second side edge track N 5 N 9 corresponding to the position of the second projected point N′ on the second side edge track N 5 N 9 . In this way, the door body 20 will not exceed the reference plane M0 too much during the opening process.
  • the included angle in the third direction tends to increase, and the included angle in the fourth direction also tends to increase. And when the door body 20 is opened by a unit angle, the increments of the included angle in the third direction and the included angle in the fourth direction remain substantially unchanged.
  • the increment of the included angle in the third direction is kept within 0.7° to 1.5° Any value (such as 0.7, 0.9°, 1.2° or 1.5°), the increment of the included angle in the fourth direction is maintained at any value between 0.4° and 1° (such as 0.4°, 0.6°, 0.8° or 1 °).
  • Such setting can make the change trend of the first side edge track W 5 W 9 and the second side edge track N 5 N 9 stable and gentle, which is beneficial to improve the smoothness of the door body 20 rotation.
  • the increment of the included angle in the third direction may be 0.7° to 1.5° ° (such as 0.7, 0.9°, 1.2° or 1.5°)
  • the increment of the included angle in the fourth direction may be any value from 0.4° to 1° (such as 0.4°, 0.6°, 0.8° or 1°).
  • the direction in which the positioning center point P moves along the first trajectory line S is recorded as the first displacement direction; the direction in which the guiding center point Q moves along the second trajectory line K is recorded as the second displacement direction.
  • the angle formed by the first displacement direction and the second displacement direction is recorded as the displacement angle ⁇ .
  • the door body 20 When the door body 20 is opened from the closed state to the second angle G2 , the door body 20 will rotate to the first intermediate angle Gi and the second intermediate angle Gii, and the first intermediate angle Gi and the second intermediate angle Gii are both 0 ° to any value between the second angle G 2 , and the first intermediate angle Gi ⁇ the second intermediate angle Gii.
  • the displacement angle ⁇ formed by the first displacement direction and the second displacement direction is substantially unchanged. It should be noted that substantially constant means that the displacement angle ⁇ changes within a small range to keep relatively constant.
  • the displacement angle formed by the first displacement direction and the second displacement direction is the first displacement angle ⁇ Gi
  • the displacement angle formed by the first displacement direction and the second displacement direction is the second displacement angle ⁇ Gii
  • the angle between the first displacement angle ⁇ Gi and the second displacement angle ⁇ Gii is 8°.
  • the displacement angle when the door body 20 is closed, the displacement angle is ⁇ 0 , when the door body 20 is opened to the first angle G 1 , the displacement angle is ⁇ 1 , and the door body 20 is opened to the first angle G 1 .
  • the included angle of displacement is ⁇ 2 .
  • the difference ⁇ between the displacement angle ⁇ 1 and the displacement angle ⁇ 2 is between 0° and 4°.
  • ⁇ may be 0°, 2° or 4°.
  • the included displacement angle of ⁇ 1 and the included displacement angle of ⁇ 2 are any value from 56° to 60°.
  • the first shaft 421 when the door body 20 is opened from the closed state to the second angle G2 , the first shaft 421 makes a linear motion in the linear groove segment of the first track groove 433, therefore, the first displacement The angle between the direction and the first reference plane M1 remains unchanged.
  • the first shaft 421 makes a curved movement in the curved groove section of the first groove, so the first displacement direction is consistent with the first reference The angle between the planes M1 shows a decreasing trend.
  • the curved groove segment of the first track groove 433 is a similar arc groove, that is to say, the curved track segment of the first track line S is a similar circular arc.
  • the first shaft 421 moves in an arc with equal radius relative to the first track groove 433 .
  • the included angle between the first displacement direction and the first reference plane M1 is between 32° and 35° (such as 32°, 33°, 34° or 35°).
  • the arc-like groove is a groove with a center trajectory line similar to an arc.
  • the similar arcs include standard arcs (that is, a part of a standard circle), and non-standard arcs that are different from standard arcs but still have arc trajectory characteristics due to manufacturing, assembly errors, or slight deformation.
  • the included angle between the second displacement direction and the second reference plane M2 tends to decrease, and the included angle is between 12° and 15° (such as 12°, 13° or 15°).
  • the change of the displacement angle ⁇ is small when the door body 20 is opened from the closed state to the maximum angle G9 . Therefore, when the user opens the door body 20 with a constant force (about 5N), the first double The force on the shaft assembly 420 does not change much, which is beneficial to improve the smoothness of the movement when the door is opened, and can also reduce the wear of the first double-slot assembly on the track groove during the opening of the door, which is beneficial to improve the hinge. service life of the component 30.
  • the plane where the door front wall 22 is located when the door body 20 is closed is marked as a third reference plane M3.
  • the third reference plane M3 intersects the reference plane M0 at a theoretical first side edge W when the door body 20 is closed.
  • the angle bisector of the angle formed by the door front wall 22 and the door side wall 21 is denoted as the angle bisector H (ie, the fourth reference plane).
  • the part of the third reference plane M3 located on the inner side of the reference plane M0 and the part of the reference plane M0 located on the side of the third reference plane M3 close to the box body 10 form a dihedral angle, which is denoted as the first included angle ⁇ , and ⁇ is approximately 90°.
  • the angle bisection plane H bisects the first included angle ⁇ .
  • the angle bisector plane H bisects the first included angle ⁇ , and during the opening process of the door body 20 relative to the box body 10, the angle bisector plane H is opposite to the door body 20 As the box body 10 moves, the first included angle ⁇ remains static.
  • the first side edge W is located on the reference plane M0, that is, the first side edge W is the intersection line of the third reference plane M3 and the reference plane M0.
  • the positioning central axis P is located at the initial positioning point P 0 of the first trajectory S.
  • the shortest line segment between the initial positioning point P 0 and the first lateral edge W is denoted as WP 0
  • the angle between the line segment WP 0 and the straight track segment on the first track line S is denoted as ⁇ , and 0° ⁇ 90 °.
  • the distance between the first side edge W and the straight line where the straight track segment on the first track S is R, and R is a constant value.
  • the size of the included angle ⁇ can be changed, for example, when the initial positioning point P 0 is set close to the door side wall 21, The included angle ⁇ will become larger, and will approach 90°; when the initial positioning point P 0 is set away from the door side wall 21, the included angle ⁇ will decrease, and will approach 0°.
  • any point on the first trajectory line S located on the side of the angle bisector H close to the door side wall 21 is marked as the first setting position A 1
  • the intersection point of the straight line trajectory segment and the angle bisector H is marked as is the second setting position A 2
  • the point on the straight line trajectory segment located on the side of the angle bisector H away from the side wall 21 of the door is marked as the third setting position A 3
  • the shortest line segment from the first setting position A 1 to the first side edge W is marked as line segment WA 1
  • the included angle between line segment WA 1 and the straight track segment is marked as ⁇ 1 .
  • the shortest line segment from the second setting position A 2 to the first side edge W is marked as line segment WA 2
  • the included angle between line segment WA 2 and the straight track segment of the first track line is marked as ⁇ 2
  • the shortest line segment from the third setting position A 3 to the first lateral edge W is denoted as line segment WA 3
  • the angle between WA 3 and the straight track segment of the first track line is denoted as ⁇ 3 .
  • ⁇ 1 is greater than ⁇ 2
  • ⁇ 2 is greater than ⁇ 3 .
  • Dmax R/sin ⁇ -Rcot ⁇ is an increasing function on ⁇ , it can be known that Dmax( ⁇ 1 )>Dmax( ⁇ 2 )>Dmax( ⁇ 3 ).
  • the initial positioning point P0 is set to be located at the first setting position A1 , then in the process of the door body 20 only rotating and opening with the first shaft 421 as the rotation axis, the first The distance of the side edge W beyond the reference plane M0 is greater.
  • the initial positioning point P0 is set to be located at the third setting position A3 , then in the process of the door body 20 only rotating and opening with the first axis 421 as the rotation axis, the first side edge The distance of W beyond the reference plane M0 is small.
  • the refrigerator 1 adopts a biaxial hinge
  • the door body 20 needs to move a certain distance to the inner side while rotating. Therefore, when the position of the initial positioning point P0 is set to be larger than the distance from the door side wall 21, the maximum distance Dmax that the first side edge W exceeds the reference plane M0 during the rotation of the door body 20 will be smaller, so that The distance that the door body 20 needs to move to the inner side while rotating is smaller.
  • the initial positioning point P 0 is set on the door angle bisector H, that is to say, the angle bisector H roughly bisects the first axis 421 .
  • the distance between the initial positioning point P0 and the door side wall 21 increases, when the door body 20 is rotated and opened to 90°, the distance between the door body 20 and the first reference plane M1 will also increase, so that Increase the maximum angle at which the door body 20 can be opened.
  • the ninth distance D9 when the door body 20 is opened to 90°, the distance between the door front wall 22 and the reference plane M0 is recorded as the ninth distance D9.
  • the ninth distance D9 is recorded as a positive number
  • the ninth distance D9 is recorded as a negative number.
  • the initial positioning point P0 is located at the first setting position A1 , and when the door body 20 is opened to 90°, the ninth distance D9 is 0, That is, the door front wall 22 is substantially located in the reference plane M0.
  • the distance A 1 A 2 between the first setting position A 1 and the second setting position A 2 is greater than 0 and less than or equal to 2mm.
  • Such setting makes the initial positioning point P0 located near the angle bisector H, thereby ensuring the stability of the first axis 421 when moving relative to the door body 20; on the other hand, when the door body 20 is opened to 90° , the door front wall 22 does not exceed the reference plane M0, so that the door body 20 can be opened to a larger angle when it is embedded in the cabinet 100 for use.
  • the initial positioning point P 0 is located at the third setting position A 3 on the side of the angle bisector H away from the side wall 21 of the door.
  • the ninth distance D9>0 that is, the door front wall 22 is located inside the reference plane M0.
  • the ninth distance D9 is any value between 0.5mm and 2mm.
  • the distance A 2 A 3 between the second setting position A 2 and the third setting position A 3 is greater than 0 and less than or equal to 2mm.
  • Such setting makes the initial positioning point P0 located near the angle bisector H, thereby ensuring the stability of the first axis 421 when moving relative to the door body 20; on the other hand, when the door body 20 is opened to 90° It is located inside the reference plane M0, so that the door body 20 can be opened to a larger angle when it is embedded in the cabinet 100 for use.
  • the opening angle of the door body 20 is between 43° and 47°, that is to say, any value in the second angle G 2 ⁇ [43°, 47°].
  • a fourth gap ⁇ 2 is provided between the side wall 21 and the end wall close to the door front wall 22 , which can prevent the door body 20 from springing away from the box body 10 when the door body 20 is closed by a user with a relatively large force.
  • the side of the door body 20 close to the box body 10 has a door seal, and the door seal is a magnetic elastic body. Normally, when the door body 20 is closed, the door front wall 22 is located in the third reference plane M3.
  • the second preset angle ⁇ 3° (for example, the second preset angle ⁇ is 3°, 2° or 1°), that is to say, when the first axis 421 and the first track groove
  • the second preset angle ⁇ between the door front wall 22 and the third reference plane M3 is any value between 0° and 3°.
  • the second shaft 422 and the end wall of the second track groove 434 away from the door side wall 21 can be set as In contact with each other, it can also be set so that there is a gap.
  • the first trajectory line S also has a reserved positioning point P', and the reserved positioning point P' is located on the side of the initial positioning point P0 away from the side wall 21 of the door.
  • the positioning center point P moves from the initial positioning point P0 to the reserved positioning point P′.
  • the track segment between the reserved positioning point P' and the initial positioning point P 0 is recorded as the reserved track segment P'P 0 , and the first reserved track segment P'P 0 is located on the straight line where the linear track segment is located.
  • the second trajectory line K has a reserved guide point Q', and when the door body 20 moves from the closed state to the first preset angle in the closing direction, the guide center point Q Move from the initial guide point Q 0 to the reserved guide point Q'.
  • the trajectory segment between the reserved guidance point Q' and the initial guidance point Q 0 is recorded as the second reserved trajectory segment Q'Q 0 , and the reserved trajectory segment Q'Q 0 is consistent with the trend of the second trajectory line K .
  • the first shaft 421 first moves to the initial positioning point P 0 and the second shaft 422 first moves to the initial guiding point Q 0 , and then the positioning center point P continues to move along the first A trajectory line S moves from the initial positioning point P 0 to the reserved positioning point P', and the guiding center point Q continues to move from the initial guiding point Q 0 to the reserved guiding point Q'.
  • the door body 20 approaches the box
  • the direction of the body 10 continues to rotate by the first preset angle G', and 0° ⁇ G' ⁇ , so as to prevent the door 20 from bouncing away from the box body 10 when it is closed by a user with a relatively large force.
  • the positioning center point P moves to the end point of the first trajectory line S that is close to the door side wall 21 and close to the door front wall 22 , there is a fifth gap ⁇ 3 between the first shaft 421 and the end wall of the first track groove 433 that is close to the door side wall 21 and close to the end of the door front wall 22.
  • the second shaft 422 moves to the second track the middle of the slot 434 .
  • Such arrangement can prevent movement interference between the first shaft 421 and the first track groove 433 due to manufacturing, assembly errors or slight deformation.

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  • Engineering & Computer Science (AREA)
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  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
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  • General Engineering & Computer Science (AREA)
  • Refrigerator Housings (AREA)
  • Hinges (AREA)

Abstract

一种冰箱（1），所述冰箱（1）包括箱体（10）、铰链组件（30）和门体（20）。所述铰链组件（30）包括第一轨迹槽（433）、第二轨迹槽（434）、第一轴（421）、第二轴（422）。所述门体（20）通过所述铰链组件（30）与所述箱体（10）相连。定义所述箱体（10）的靠近所述铰链组件（30）的一侧面所在的平面为基准平面（M0）。定位中心点（P）和导向中心点（Q）的运动方向的夹角为位移夹角。在所述门体（20）从关闭状态经由第一角度打开至第二角度的过程中，所述第二轴（422）的导向中心点(Q)沿所述第二轨迹槽（434）的第二轨迹线（K）运动，所述第一轴（421）的定位中心点(P)从所述第一轨迹槽（433）的直线轨迹段的一端移动至另一端，以使所述门体(20)在旋转的过程中向内侧移动。所述门体（20）打开至任意两个角度时的位移夹角的度数的差值不大于预设角度。

Description

冰箱
本申请要求于2022年4月29日提交的、申请号为202210464946.8的中国专利申请的优先权，于2022年4月29日提交的、申请号为202210464670.3的中国专利申请的优先权，于2022年4月29日提交的、申请号为202210464933.0的中国专利申请的优先权，于2021年9月18日提交的、申请号为202111104648.X的中国专利申请的优先权，以及于2021年9月18日提交的、申请号为202111098814.X的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及家用电器技术领域，尤其涉及一种冰箱。
背景技术
家庭生活中，冰箱已成为每个家庭必备的家电之一。出于对室内美观简洁的需求，越来越多的消费者会选择嵌入式冰箱。
嵌入式冰箱，就是把冰箱嵌入到与其配套的橱柜中，通过地脚、背板和顶板形成散热循环，因此，冰箱的左右两侧壁与橱柜的内侧壁之间可以留有较小的间隙。
发明内容
提供一种冰箱，所述冰箱包括箱体、铰链组件和门体。所述铰链组件包括第一轨迹槽、第二轨迹槽、第一轴和第二轴。所述第一轨迹槽的中心轨迹线为第一轨迹线，所述第一轨迹线包括直线轨迹段。所述第二轨迹槽的中心轨迹线为第二轨迹线。所述第一轴与所述第一轨迹槽配合，且所述第一轴的中心轴线在所述第一轨迹槽的槽底上的正投影为定位中心点。所述第二轴与所述第二轨迹槽配合，且所述第二轴的中心轴线在所述第二轨迹槽的槽底上的正投影为导向中心点。所述门体通过所述铰链组件与所述箱体相连，以打开或关闭所述箱体。所述门体包括门侧壁，所述门侧壁为所述门体的靠近所述铰链组件的一侧壁。定义所述箱体的靠近所述第铰链组件的一侧面所在的平面为基准平面，所述基准平面的靠近所述箱体的一侧为内侧。所述第一轴和所述第二轴相对于所述箱体固定；所述第一轨迹槽和所述第二轨迹槽相对于所述门体固定；所述直线轨迹段的一端较所述直线轨迹段的另一端更远离所述门侧壁。在所述门体从关闭状态经由第一角度打开至第二角度的过程中，所述导向中心点沿所述第二轨迹线运动，所述定位中心点从所述直线轨迹段的所述一端移动至所述直线轨迹段的所述另一端，以使所述门体在旋转的过程中向所述内侧移动。定义所述定位中心点的移动方向为第一位移方向；所述导向中心点的移动方向为第二位移方向；所述第一位移方向与所述第二位移方向之间的夹角为位移夹角。其中，在所述门体从所述关闭状态经由所述第一角度打开至所述第二角度的过程中，所述门体打开至任意两个角度时的位移夹角的度数的差值不大于预设角度。
附图说明
为了更清楚地说明本公开中的技术方案，下面将对本公开一些实施例中所需要使用的附图作简单地介绍。
图1为根据一些实施例的一种冰箱的立体图；
图2为根据一些实施例的一种冰箱安装在橱柜中的俯视图；
图3为图2中圈B1处的局部放大图；
图4为根据一些实施例的一种冰箱的双轴组件以及轨迹槽的结构图；
图5为根据一些实施例的一种冰箱的一种第一铰链组件的爆炸图；
图6为根据一些实施例的一种冰箱的另一种第一铰链组件的爆炸图；
图7A为根据一些实施例的一种冰箱的第二铰链组件在门体关闭时的立体图；
图7B为根据一些实施例的一种冰箱的第二铰链组件在门体关闭时的结构图；
图8A为根据一些实施例的一种冰箱的第二铰链组件在门体开启至小于90°的任一角度时的立体图；
图8B为根据一些实施例的一种冰箱的第二铰链组件在门体开启至小于90°的任一角度时的结构图；
图9A为根据一些实施例的一种冰箱的第二铰链组件在门体开启至90°时的立体图；
图9B为根据一些实施例的一种冰箱的第二铰链组件在门体开启至90°时的结构图；
图10A为根据一些实施例的一种冰箱的第二铰链组件在门体开启至最大角度时的立体图；
图10B为根据一些实施例的一种冰箱的第二铰链组件在门体开启至最大角度时的结构图；
图11为根据一些实施例的一种冰箱第二安装块的爆炸图；
图12为根据一些实施例的一种冰箱第二安装块的立体图；
图13A为根据一些实施例的一种冰箱的门体处于关闭状态时的结构图；
图13B为根据一些实施例的一种冰箱的门体打开的角度大于0°且小于等于n时的结构图；
图13C为根据一些实施例的一种冰箱的门体打开的角度大于n且小于等于n+90°时的结构图；
图13D为根据一些实施例的一种冰箱的门体打开的角度大于n+90°时的结构图；
图14A为根据一些实施例的一种冰箱的门体处于关闭状态时的另一种结构图；
图14B为根据一些实施例的一种冰箱的门体打开至第一角度G 1时的结构图；
图14C为根据一些实施例的一种冰箱的门体打开至第二角度G 2时的结构图；
图14D为根据一些实施例的一种冰箱的门体打开至第三角度G 3时的结构图；
图14E为根据一些实施例的一种冰箱的门体打开至第四角度G 4时的结构图；
图14F为根据一些实施例的一种冰箱的门体打开至第五角度G 5时的结构图；
图14G为根据一些实施例的一种冰箱的门体打开至第六角度G 6时的结构图；
图14H为根据一些实施例的一种冰箱的门体打开至第七角度G 7时的结构图；
图14I为根据一些实施例的一种冰箱的门体打开至第八角度G 8时的结构图；
图14J为根据一些实施例的一种冰箱的门体打开至最大角度G 9时的结构图；
图15A为根据一些实施例的一种冰箱的门体打开至第一角度G 1时第一轴、第二轴、第一轨迹槽以及第二轨迹槽的相对位置示意图；
图15B为根据一些实施例的一种冰箱的门体打开至第二角度G 2时第一轴、第二轴、第一轨迹槽以及第二轨迹槽的相对位置示意图；
图15C为根据一些实施例的一种冰箱的门体打开至第三角度G 3时第一轴、第二轴、第一轨迹槽以及第二轨迹槽的相对位置示意图；
图15D为根据一些实施例的一种冰箱的门体打开至第四角度G 4时第一轴、第二轴、第一轨迹槽以及第二轨迹槽的相对位置示意图；
图15E为根据一些实施例的一种冰箱的门体打开至第五角度G 5时第一轴、第二轴、第一轨迹槽以及第二轨迹槽的相对位置示意图；
图15F为根据一些实施例的一种冰箱的门体打开至第六角度G 6时第一轴、第二轴、第一轨迹槽以及第二轨迹槽的相对位置示意图；
图15G为根据一些实施例的一种冰箱的门体打开至第七角度G 7时第一轴、第二轴、第一轨迹槽以及第二轨迹槽的相对位置示意图；
图15H为根据一些实施例的一种冰箱的门体打开至第八角度G 8时第一轴、第二轴、第一轨迹槽以及第二轨迹槽的相对位置示意图；
图15I为根据一些实施例的一种冰箱的门体打开至最大角度G 9时第一轴、第二轴、第一轨迹槽以及第二轨迹槽的相对位置示意图；
图16为根据一些实施例的一种冰箱的门体从第二角度G 2开启至第七角度G 7(对应第二阶段)时第一轴、第二轴、第一轨迹槽以及第二轨迹槽的相对位置示意图；
图17为根据一些实施例的一种冰箱的门体从第七角度G 7开启至最大角度G 9(对应第三阶段)时第一轴、第二轴、第一轨迹槽以及第二轨迹槽的相对位置示意图；
图18为根据一些实施例的一种冰箱的门体开启至最大角度G 9时第一轴、第二轴、第一轨迹槽以及第二轨迹槽的另一种相对位置示意图；
图19为图18中圈B2处的局部放大图；
图20为根据一些实施例的一种冰箱的第一侧棱和第二侧棱在门体开启过程中的运动轨迹示意图；
图21为根据一些实施例的一种冰箱的门体从关闭状态开启至第二角度G 2时第一轴、第二轴、第一轨迹槽以及第二轨迹槽的结构图；
图22为根据一些实施例的一种冰箱的门体处于关闭状态时的又一种结构图；
图23为根据一些实施例的一种冰箱的门体处于关闭状态时的另一种第一铰链组件的结构图；
图24为根据一些实施例的一种冰箱的门体处于关闭状态时的又一种第一铰链组件的结构图；
图25为根据一些实施例的一种冰箱的门体处于关闭状态时的又一种第一铰链组件的结构图；
图26为根据一些实施例的一种冰箱的门体由关闭状态继续运动至负角度时，第一轴、第二轴、第一轨迹槽以及第二轨迹槽的相对位置示意图；
图27为根据一些实施例的一种冰箱的门体由关闭状态继续运动至负角度时的结构图。
具体实施方式
下面将结合附图，对本公开一些实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本公开一部分实施例，而不是全部的实施例。基于本公开所提供的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本公开保护的范围。
除非上下文另有要求，否则，在整个说明书和权利要求书中，术语“包括(comprise)”及其其他形式例如第三人称单数形式“包括(comprises)”和现在分词形式“包括(comprising)”被解释为开放、包含的意思，即为“包含，但不限于”。在说明书的描述中，术语“一个实施例(one embodiment)”、“一些实施例(some embodiments)”、“示例性实施例(exemplary embodiments)”、“示例(example)”、“特定示例(specific example)”或“一些示例(some examples)”等旨在表明与该实施例或示例相关的特定特征、结构、材料或特性包括在本公开的至少一个实施例或示例中。上述术语的示意性表示不一定是指同一实施例或示例。此外，所述的特定特征、结构、材料或特点可以以任何适当方式包括在任何一个或多个实施例或示例中。
以下，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本公开实施例的描述中，除非另有说明，“多个”的含义是两个或两个以上。
在描述一些实施例时，可能使用了“耦接”和“连接”及其衍伸的表达。例如，描述一些实施例时可能使用了术语“连接”以表明两个或两个以上部件彼此间有直接物理接触或电接触。又如，描述一些实施例时可能使用了术语“耦接”以表明两个或两个以上部件有直接物理接触或电接触。然而，术语“耦接”或“通信耦合(communicatively coupled)”也可能指两个或两个以上部件彼此间并无直接接触，但仍彼此协作或相互作用。这里所公开的实施例并不必然限制于本文内容。
“A、B和C中的至少一个”与“A、B或C中的至少一个”具有相同含义，均包括以下A、B和C的组合：仅A，仅B，仅C，A和B的组合，A和C的组合，B和C的组合，及A、B和C的组合。
“A和/或B”，包括以下三种组合：仅A，仅B，及A和B的组合。
本文中“适用于”或“被配置为”的使用意味着开放和包容性的语言，其不排除适用于或被配置为执行额外任务或步骤的设备。
如本文所使用的那样，“约”、“大致”或“近似”包括所阐述的值以及处于特定值的可接受偏差范围内的平均值，其中所述可接受偏差范围如由本领域普通技术人员考虑到正在讨论的测量以及与特定量的测量相关的误差(即，测量系统的局限性)所确定。
如本文所使用的那样，“平行”、“垂直”、“相等”包括所阐述的情况以及与所阐 述的情况相近似的情况，该相近似的情况的范围处于可接受偏差范围内，其中所述可接受偏差范围如由本领域普通技术人员考虑到正在讨论的测量以及与特定量的测量相关的误差(即，测量系统的局限性)所确定。例如，“平行”包括绝对平行和近似平行，其中近似平行的可接受偏差范围例如可以是5°以内偏差；“垂直”包括绝对垂直和近似垂直，其中近似垂直的可接受偏差范围例如也可以是5°以内偏差。“相等”包括绝对相等和近似相等，其中近似相等的可接受偏差范围内例如可以是相等的两者之间的差值小于或等于其中任一者的5％。
在下文中，为便于描述，如无特殊说明，本公开对于上、下、左、右、前、后的方位表述均以冰箱使用时的状态为参考。冰箱使用时面向用户的一侧为前侧，与之相反的一侧为后侧。冰箱的高度方向为上、下方向。冰箱的左右方向与用户的左右方向相反，例如冰箱的左侧为用户的右侧、冰箱的右侧为用户的左侧。
本公开的一些实施例提供了一种冰箱1，参照图1和图2，冰箱1包括箱体10、门体20和铰链组件30。
箱体10包括内胆、外壳以及隔热层。所述内胆大致呈矩形箱状，其内限定有储藏室。所述外壳的形状与所述内胆的形状相配合，且所述内胆设置在所述外壳中。所述隔热层设置在所述内胆与所述外壳之间以阻隔所述储藏室与箱体10的外部空间之间的热传递。
在一些实施例中，冰箱1还包括制冷装置，所述制冷装置被配置为向所述储藏室提供冷空气。所述储藏室的一侧(如前侧)敞开以形成取放口。所述储藏室被配置为储藏食物，且用户可以通过所述取放口向所述储藏室中放入食物或从所述储藏室中取出食物。
在一些实施例中，所述储藏室可被分隔成冷藏室和冷冻室。所述冷藏室可以将其内部空气的温度保持在约0℃至5℃之间，并以冷藏模式储藏食物。所述冷冻室可以将其内部空气的温度保持在约-30℃至0℃之间，并以冷冻模式储藏食物。此外，箱体10还可以包括其他腔室，例如，真空室、恒温室等。
在一些实施例中，所述冷藏室和所述冷冻室沿冰箱1的高度方向排列。例如，所述冷藏室位于所述冷冻室的下方。需要说明的是，在一些实施例中，所述冷藏室和所述冷冻室可以以其他方式进行排列，本公开对此不做限定。
门体20通过铰链组件30连接在箱体10的一端(如前端)。门体20可以旋转，从而打开或关闭所述储藏室。当门体20打开时，所述取放口可允许食物被放入或取出。
参见图1，铰链组件30例如为第一铰链组件40或第二铰链组件50。第一铰链组件40设置在箱体10的上部，且分别与箱体10和门体20固定连接；第二铰链组件50设置在箱体10的下部，且分别与箱体10和门体20固定连接。第一铰链组件40与第二铰链组件50沿同一轴线设置，以使门体20可以绕该轴线旋转，实现门体20的开合。
通常情况下，铰链组件30位于门体20的左侧或右侧，参见图1和图2，门体20包括左侧壁、右侧壁、上侧壁、下侧壁和前侧壁。为描述方便，将门体20的左侧壁和右侧壁中更靠近铰链组件30的一侧壁称为门侧壁21。
例如，在图1和图2中，铰链组件30设置在门体20的左端(即，用户的右端)，则门体20的左侧壁被称为门侧壁21，门体20的右端以其左端为旋转中心进行旋转运动。
类似地，当铰链组件30设置在门体20的右端时，门体20的右侧壁被称为门侧壁21，门体20的左端以其右端为旋转中心进行旋转运动。
在一些实施例中，当门体20关闭时，门侧壁21与箱体10的靠近铰链组件30的一侧壁(即箱体侧壁12)平齐。需要说明的是，所述平齐包括完全平齐，亦包括近似平齐。
在一些实施例中，参见图1、图2和图4，门体20在关闭时远离箱体10的一侧壁(如，前侧壁)被称为门前壁22，门体20在关闭时靠近箱体10的一侧壁(如，后侧壁)被称为门后壁23。门前壁22和门侧壁21相交形成第一侧棱W(即侧棱)，门侧壁21与门后壁23相交形成第二侧棱N。在门体20关闭时，第一侧棱W位于第二侧棱N远离箱体10的一侧。
需要说明的是，门前壁22与门侧壁21均为平面时，两平面相交线为理论上的第一侧棱W。而在实际的加工生产时，通常会将门前壁22与门侧壁21的相交处圆角过渡。这样， 门前壁22与门侧壁21的相交处会形成一个曲面，该曲面上任意一条沿冰箱1的高度方向(即上下方向)延伸的直线均可代表第一侧棱W。
箱体10包括左侧壁、右侧壁、上侧壁、下侧壁和后侧壁。在一些实施例中，将箱体10的左右两侧壁中靠近铰链组件30的一侧壁所在的平面定义为基准平面M0。以基准平面M0为分界面，箱体10所在的一侧被定义为内侧，与之相对的另一侧被定义为外侧。在图1和图2中，铰链组件30设置在箱体10的左端，则箱体10的左侧壁被定义为基准平面M0，所述内侧为基准平面M0的右侧。
可以理解的是，当铰链组件30设置在箱体10的右端时，箱体10的右侧壁被定义为基准平面M0，所述内侧为基准平面M0的左侧。
参见图2，将冰箱1嵌入橱柜100中时，考虑到地面不平或橱柜变型等因素，需要在冰箱1的外侧壁(对应基准平面M0所在位置)与橱柜100的内侧壁之间预留第一间隙101，第一间隙101的宽度通常为3mm至5mm之间的任一值，例如，第一间隙101的宽度可以为3mm、4mm或5mm。
可以理解的是，为了保证门体20正常打开，门体20在旋转的过程中，第一侧棱W超出基准平面M0的距离(即，随着门体20的旋转，当第一侧棱W从基准平面M0运动到所述外侧时，第一侧棱W与基准平面M0之间的距离)不宜太大，例如，该距离不大于5mm。否则，第一侧棱W会与橱柜100碰撞，导致门体20无法完全打开，进而导致门体20或橱柜100损坏。
为此，铰链组件30采用双轴铰链的形式，使门体20旋转时其第一侧棱W向所述内侧移动，从而避免第一侧棱W会与橱柜100碰撞。
在一些实施例中，参见图3和图5，第一铰链组件40包括第一铰链板410、第一双轴组件420、第一轨迹槽433和第二轨迹槽434。第一铰链板410包括第一连接部411和与第一连接部411相连的第一延伸部412，第一连接部411与第一延伸部412共面。第一双轴组件420包括第一轴421和第二轴422。
门体20包括第一端盖210，第一端盖210设于门体20的上端且与第一铰链组件40的位置相对应。第一端盖210的靠近第一铰链板410的一侧表面向远离第一铰链板410的方向凹进，以形成第一轨迹槽433和第二轨迹槽434。
在一些实施例中，第一端盖210为注塑件，其通过注塑的方式一体成型。或者，在一些实施例中，第一端盖210可以与门体一体成型，在此情况下，第一端盖210可以作为门体的一部分。
第一双轴组件420的第一轴421和第二轴422均设置在第一延伸部412上，且从第一延伸部412的下表面向下延伸。第一轴421插设在第一轨迹槽433中，且与第一轨迹槽433相配合；第二轴422插设在第二轨迹槽434中，且与第二轨迹槽434相配合。
可以理解的是，在门体20旋转时，第一轴421相对地在第一轨迹槽433中运动，第二轴422相对地在第二轨迹槽434中运动。
第一连接部411与箱体10的上侧壁固定连接。第一连接部411具有多个第一通孔4111，箱体10具有多个第二通孔11，多个第二通孔11位于箱体10的上侧壁中且与多个第一通孔4111一一对应，通过紧固件如螺钉可以将第一连接部411与箱体10固定连接。
这样，箱体10和门体20通过第一铰链组件40连接，门体20可通过第一铰链组件40相对于箱体10旋转。
在一些实施例中，第一轴421的直径大于第二轴422的直径。可以理解的是，第一轴421为主轴，主要起定位作用，第二轴422为辅轴，主要起导向作用。门体20在旋转时会对第一轴421和第二轴422施加作用力，且该作用力主要集中在主轴上。因此，第一轴421的直径大于第二轴422的直径时，可以提高第一轴421的强度。
在一些实施例中，第一连接部411与第一延伸部412一体成型，且第一铰链板410、第一轴421和第二轴422一体成型。或者，第一铰链板410、第一轴421和第二轴422均可以为独立件，且第一轴421和第二轴422可以通过焊接或螺纹连接的方式与第一铰链板410固定连接。
在一些实施例中，参见图6，第一铰链组件40还包括第一安装块430，第一安装块430包括第一板体431和第一凸出部432。第一板体431向下延伸以形成第一凸出部432，且第一凸出部432朝向上方敞开以限定出第一轨迹槽433和第二轨迹槽434。
例如，第一轨迹槽433包括槽底以及环绕槽底边沿的周向槽壁。周向槽壁围设出与槽底相对的槽口。第二轨迹槽434的结构与第一轨迹槽433的结构相似，其不同之处在于槽的长度和形状。
在一些实施例中，如图6所示，第一端盖210包括第一容纳槽213，第一容纳槽213朝向上方敞开。第一安装块430嵌设在第一容纳槽213中。第一板体431平行于门体20的上侧壁。第一板体431具有多个第三通孔4311，第一端盖210具有多个第四通孔214，多个第四通孔214与多个第三通孔4311一一对应，通过紧固件如螺钉可以将第一板体431与第一端盖210固定连接。
在一些实施例中，第一板体431包括第一卡接口；第一容纳槽213包括第一卡接部；第一安装块430嵌设在第一容纳槽213中时，所述第一卡接部安装于所述第一卡接口内，从而可以限定第一安装块430与门体20的相对位置。
在一些实施例中，第一板体431与第一凸出部432一体成型，从而可以提高第一安装块430的结构精度和强度。
例如，第一板体431与第一凸出部432可以通过注塑的方式一体成型。
在一些实施例中，如图7A至图10B所示，第二铰链组件50包括第二铰链板510、第二双轴组件520、第三轨迹槽533和第四轨迹槽534。第二铰链板510包括第二连接部511和与第二连接部511相连的第二延伸部512。第二双轴组件520包括第三轴521和第四轴522。
门体20还包括第二端盖220，第二端盖220设于门体20的下端且与第二铰链组件50的位置相对应。第二端盖220的靠近第二铰链板510的一侧表面向远离第二延伸部512的方向凹进，以形成第三轨迹槽533和第四轨迹槽534。
在一些实施例中，第二端盖220为注塑件，其通过注塑的方式一体成型。或者，在一些实施例中，第二端盖220可以与门体一体成型，在此情况下，第二端盖220可以作为门体的一部分。
第二连接部511连接在箱体10下端的靠近门体20的一侧。第二延伸部512从第二连接部511朝向远离箱体10的方向延伸。第二连接部511具有多个第五通孔5111，箱体10具有多个第六通孔，多个第六通孔位于箱体10的下侧壁中且与多个第五通孔5111一一对应，通过紧固件如螺钉可以将第二连接部511与箱体10固定连接。
第二双轴组件520的第三轴521和第四轴522均设置在第二延伸部512上，且从第二延伸部512的上表面向上延伸。
第三轴521插设在第三轨迹槽533中，且与第三轨迹槽533相配合；第四轴522插设在第四轨迹槽534中，且与第四轨迹槽534相配合。这样，箱体10和门体20通过第二铰链组件50连接，门体20可通过第二铰链组件50相对于箱体10旋转。
在一些实施例中，第三轴521的直径大于第四轴522的直径。可以理解的是，第三轴521为主轴，主要起定位作用，第四轴522为辅轴，主要起导向作用。门体20在旋转时会对第三轴521和第四轴522施加作用力，且该作用力主要集中在主轴上。因此，第三轴521的直径大于第四轴522的直径时，可以提高第三轴521的强度。
在一些实施例中，第二连接部511与第二延伸部512一体成型，且第二铰链板510、第三轴521和第四轴522一体成型。或者，第二铰链板510、第三轴521和第四轴522均可以为独立件，且第三轴521和第四轴522可以通过焊接或螺纹连接的方式与第二铰链板510固定连接。
在一些实施例中，参见图11和图12，第二铰链组件50还包括第二安装块530，第二安装块530包括第二板体531和第二凸出部532。第二板体531向下延伸以形成第二凸出部532，且第二凸出部532朝向下方敞开以限定出第三轨迹槽533和第四轨迹槽534。
例如，第三轨迹槽533包括槽底以及环绕槽底边沿的周向槽壁。所述周向槽壁围设出 与所述槽底相对的槽口。第四轨迹槽534的结构与第三轨迹槽533的结构相似，其不同之处在于槽的长度和形状。
在一些实施例中，如图11所示，第二端盖220包括第二容纳槽223，第二容纳槽223朝向下方敞开。第二安装块530嵌设在第二容纳槽223中。第二板体531平行于门体20的下侧壁。第二板体531具有多个第七通孔5311，第二端盖220具有多个第八通孔224，多个第八通孔224与多个第七通孔5311一一对应，通过紧固件如螺钉可以将第二板体531与第二端盖220固定连接。
在一些实施例中，第二板体531包括第二卡接口；第二容纳槽223包括第二卡接部；当第二安装块530嵌设在第二容纳槽223中时，所述第二卡接部安装于所述第二卡接口内，从而可以限定第二安装块530与门体20的相对位置。
在一些实施例中，第二板体531与第二凸出部532一体成型，从而可以提高第二安装块530的结构精度和强度。
例如，第二板体531与第二凸出部532可以通过注塑的方式一体成型。
在一些实施例中，第二铰链板510还包括第一配合部，第二安装块530还包括与第一配合部相配合的第二配合部。当用户关闭门体20时，所述第一配合部与所述第二配合部相配合以限位门体20。当用户打开门体20时，所述第一配合部与所述第二配合部脱离配合，以使得门体20向远离箱体10的方向旋转。
例如，参见图11和图12，第二配合部被构造为锁钩540。锁钩540设置在第二板体531的一侧(如左侧或右侧)。锁钩540的固定端与第二板体531固定连接，且锁钩540的自由端向远离第二板体531的方向延伸并向靠近第二板体531的方向弯折，从而形成朝向第二板体531的开口541，且锁钩540的所述自由端相较于其所述固定端更靠近箱体10。
参见图7A和图7B，第一配合部被构造为止挡部513。止挡部513设置在第二延伸部512的一侧(如，左侧或右侧)，且止挡部513从第二延伸部512的所述一侧朝向远离第二延伸部512的方向延伸。止挡部513与第二连接部511之间限定有第二间隙514。
需要说明的是，止挡部513与开口541的位置相对应，即，当锁钩540设置在第二板体531的左侧时，止挡部513设置在第二延伸部512的左侧，反之，当锁钩540设置在第二板体531的右侧时，止挡部513设置在第二延伸部512的右侧。
这样，参见图7A和图7B，当门体20处于关闭状态时，止挡部513位于开口541中。锁钩540的所述自由端位于第二间隙514中，且与止挡部513的靠近箱体10的一侧抵接，从而可以提高门体20与箱体10之间贴合的紧密程度，防止因门体20关闭不严而影响冰箱的冷藏冷冻效果。
参见图8A和图10B，在门体20打开的过程中，锁钩540会受力发生形变而克服止挡部513的阻挡，从而使锁钩540与止挡部513脱离配合。
在一些实施例中，如图11和图12所示，锁钩540包括第三延伸部542和弯折部543。第三延伸部542连接第二板体531的一侧(如左侧或右侧)，且第三延伸部542与第二板体531一体成型。弯折部543的一端与第三延伸部542的远离第二板体531的一端固定连接，且弯折部543的另一端向远离第二板体531的方向延伸并向靠近第二板体531的方向弯折。
第三延伸部542具有第九通孔5421，第二端盖220的与第九通孔5421相对应的位置处具有第十通孔225，通过紧固件如螺钉可以将第三延伸部542与第二端盖220固定连接，有利于提高第三延伸部542与第二端盖220的连接强度，使得锁钩540在脱离止挡部513时仅弯折部543发生形变。
在一些实施例中，如图11和图12所示，弯折部543与止挡部513的所述自由端均呈圆弧状，从而有利于提高弯折部543与止挡部513配合卡接或脱离配合的流畅度。
在一些实施例中，当门体20由打开状态关闭至预设关闭角度时，门体20在弯折部543与止挡部513的作用下自动闭关。例如，该预设关闭角度小于7°。
在一些实施例中，如图11和图12所示，第二端盖220还包括第一凸起226和第二凸起227。第一凸起226和第二凸起227之间形成有间隙槽228。第一凸起226相较于第二 凸起227更靠近门前壁22且更靠近门侧壁21。第三延伸部542还包括插接板5422。插接板5422位于第三延伸部542的靠近弯折部543的一端，且插接板5422与间隙槽228的形状相配合。当第二安装块530嵌设在第二容纳槽223中时，插接板5422插接在间隙槽228中，从而可以限位第三延伸部542，且可以避免第三延伸部542在门体20的厚度方向上发生形变。
例如，参见图11，间隙槽228为弧形的凹槽，相应地，插接板5422为与间隙槽228相配合的弧形板，从而可以增大间隙槽228与第三延伸部542的接触面积，有利于提高第二安装块530与第二端盖220的连接强度。
在一些实施例中，如图11所示，第十通孔225形成在第一凸起226中。
需要说明的是，锁钩540可以设置在第一安装块430和第二安装块530中的至少一者上，止挡部513对应于锁钩540设置在第一铰链板410和第二铰链板510中的至少一者上。
可以理解的是，当任一安装块(包括第一安装块430和第二安装块530中的至少一者)的结构改变时，与之对应的容纳槽(包括第一容纳槽213和第二容纳槽223中的至少一者)的形状也随之改变，以容纳所述安装块。
所述安装块由聚甲醛(Polyformaldehyde,POM)制成。POM具有耐摩擦性强的特性，从而可以延长所述安装块的使用寿命。
在一些实施例中，参照图11和图12，第二端盖220还包括限位部229。限位部229设置在第二端盖220中，且沿第二端盖220的下表面向下凸出。限位部229沿门体20的宽度方向延伸。限位部229位于第二安装块530的前端。例如，限位部229为钣金件。
参见图7A和图7B，第二铰链板510还包括限位槽515。当门体20处于所述关闭状态时，限位槽515位于第二延伸部512的靠近门侧壁21且靠近门前壁22的位置处，且沿第二延伸部512的厚度方向贯穿第二延伸部512。
参见图10A和图10B，当门体20旋转到最大角度(即第九角度)时，限位部229与限位槽515相抵以阻挡门体20继续旋转，从而可以避免第四轴522与第四轨迹槽534的靠近门侧壁21的端部摩擦，有利于提高第四轴522的耐用性。
在一些实施例中，如图11，限位部229包括嵌装部2291和限位条2292。
嵌装部2291呈板状，且嵌设在第二安装块530与第二容纳槽223的槽壁之间。也就是说，当第二安装块530嵌设在第二容纳槽223中时，第二板体531的靠近门前壁的一侧与嵌装部2291相抵接，以将嵌装部2291固定在第二容纳槽223中。
限位条2292与嵌装部2291相连，且位于嵌装部2291的下侧。限位条2292沿门体20的宽度方向延伸。当门体20旋转到最大角度时，限位条2292与限位槽515相抵，从而阻挡门体20继续旋转。
在一些实施例中，限位条2292与嵌装部2291一体成型。
可以理解的是，限位部229通过第二安装块530与第二容纳槽223的内侧壁的夹持，固定安装在第二容纳槽223中，从而可以简化限位部229与第二端盖220之间的连接结构。
在一些实施例中，限位部229也可以是设置在第一端盖210中，此处不再赘述。
在一些实施例中，第一轴421与第一轨迹槽433间隙配合，第二轴422与第二轨迹槽434间隙配合，从而可以释放生产制造误差所产生的变形。第三轴521与第三轨迹槽533过盈配合，第四轴522与第四轨迹槽534过盈配合，从而可以防止锁钩540与止挡部513脱离配合时发生异响，实现门体20的静音开启。可以理解的是，为保证门体20在打开状态下，其第一侧棱W超出基准平面M0并运动至所述外侧的距离不大于5mm，需要在门体20旋转的过程中，使其第一侧棱W向基准平面M0的所述内侧运动，以满足将冰箱1嵌入橱柜100进行使用的需求。
下面主要以设置在箱体10上部的第一铰链组件40为例，对门体20相对于箱体10打开或关闭的过程进行介绍。可以理解的是，第二铰链组件50与第一铰链组件40的工作原理相同，本公开对此不再赘述。
在第一铰链板410与箱体10固定连接、且第一轴421和第二轴422与第一铰链板410 固定连接后，在门体20相对于箱体10旋转的过程中，箱体10保持静止，因此第一铰链板410、第一轴421和第二轴422也保持静止。此时，第一轨迹槽433将相对于第一轴421运动，第二轨迹槽434将相对于第二轴422运动。
但可以理解的是，第一轨迹槽433与第一轴421之间，以及第二轨迹槽434与第二轴422之间是相对运动关系，为便于描述，本公开的一些实施例有时以第一轨迹槽433和第二轨迹槽434为静止参照物，第一轴421在第一轨迹槽433内运动，且第二轴422在第二轨迹槽434内运动的方式进行描述。然而，这并不能理解为对本公开的限制。
如图4所示，第一轨迹槽433包括直线槽段以及连通所述直线槽段的曲线槽段。所述直线槽段相较于所述曲线槽段更远离门侧壁21。
在一些实施例中，所述直线槽段的一端较所述直线槽段的另一端远离所述门侧壁21，也就是说，所述直线槽段平行于门前壁22。所述曲线槽段的一端连通所述直线槽段的所述另一端，所述曲线槽段的另一端向靠近门侧壁21且靠近门前壁22的方向延伸。所述曲线槽段朝向靠近门侧壁21且靠近门后壁23的方向凸出，在此情况下，第二侧棱N位于所述曲线槽段的凸侧。
第一轨迹槽433的中心轨迹线记为第一轨迹线S，可以理解的，第一轨迹线S由第一轨迹槽433的形状所限定。对应于所述直线槽段和所述曲线槽段，第一轨迹线S包括直线轨迹段和与所述直线轨迹段相连接的曲线轨迹段。
所述直线轨迹段的一端较所述直线轨迹段的另一端远离门侧壁21，所述曲线轨迹段的一端与所述直线轨迹段的所述另一端连接，且所述曲线轨迹段的另一端向靠近门侧壁21且靠近门前壁22的方向延伸。第二侧棱N位于所述曲线轨迹段的凸侧。
在一些实施例中，所述直线轨迹段和所述曲线轨迹段的连接点记为第二定位点P 2(见图15B)，且所述直线轨迹段与所述曲线轨迹段相切于点P 2。在门体20开启的过程中，第一轴421在第一轨迹槽433中，从所述直线轨迹段的所述一端沿直线轨迹段移动至第二定位点P 2，再沿曲线轨迹段进行曲线运动。
如图4所示，第二轨迹槽434为类椭圆弧槽；第二轨迹槽434的一端较第二轨迹槽434的另一端远离门侧壁21且靠近门前壁22。在一些实施例中，第二轨迹槽434向远离门侧壁21且远离门前壁22的方向凸出，在此情况下，第一侧棱W位于第二轨迹槽434的凹侧。
第二轨迹槽434的中心轨迹线记为第二轨迹线K，可以理解的，由第二轨迹槽434的形状所限定，第二轨迹线K呈类椭圆弧状。第二轨迹线K的一端较第二轨迹线K的另一端远离门侧壁21且靠近门前壁22，且第一侧棱W位于第二轨迹线K的凹侧。第一轨迹槽433位于第二轨迹槽434的凹侧。
可以理解的是，在门体20打开的过程中，第一轴421相对地在所述直线轨迹段中做直线运动，第二轴422相对地在第二轨迹槽434中做曲线运动，从而使得门体20可以在旋转的同时向基准平面M0的所述内侧移动一段距离，这样，可以避免门体20在打开时与橱柜100发生碰撞。
需要说明的是，所述类椭圆弧槽为具有类椭圆弧的中心轨迹线(如第二轨迹线K)的槽。所述类椭圆弧包括标准椭圆弧(即，标准椭圆的一部分)，以及因加工制造、装配误差或轻微变形等形成的与标准椭圆弧有区别但仍具有椭圆弧轨迹特征的非标准椭圆弧。
在一些实施例中，参见图4，第一轴421和第二轴422均为圆柱状，第一轴421的中心轴线在第一轨迹槽433中的正投影记为定位中心点P，第二轴422的中心轴线在第二轨迹槽434中的正投影记为导向中心点Q。
在门体20打开的过程中，门体20围绕变动点(X,Y)转动，该变动点的轨迹为(X＝(X 1+X 2)/2，Y＝(Y 1+Y 2)/2)。
其中，X代表所述变动点距门侧壁21的距离，Y代表所述变动点距门前壁22的距离。X 1代表定位中心点P距门侧壁21的距离，Y 1代表定位中心点P距门前壁22的距离。X 2代表导向中心点Q距门侧壁21的距离，Y2代表导向中心点Q距门前壁22的距离。
当第二轨迹槽434为椭圆槽，则第二轨迹线K为椭圆弧，由正椭圆的参数方程(x＝fcost， y＝gsint)，可推斜椭圆的参数方程为(X 2＝f*cost*cosθ-g*sint*sinθ+c，Y2＝f*cost*sinθ+g*sint*cosθ+d)。
其中，c为椭圆圆心O距门侧壁21距离，d为椭圆圆心O距门前壁22的距离，θ为椭圆倾斜角，t为参数，f为椭圆的长半轴，g为椭圆的短半轴。
如图13A所示，当门体20处于关闭状态时，定位中心点P距门侧壁21的距离为a，定位中心点P距门前壁22的距离为b，定位中心点P与导向中心点Q之间的距离为L，定位中心点P与导向中心点Q的连线(轴心线段PQ)与门前壁22所在的平面所形成的夹角为n。
如图13B所示，当门体20的旋转角度为m，0≤m≤n，第一轴421向靠近门侧壁21的方向移动了距离k；点Q’为第二轨迹线K的端点；线段QQ’之间的距离为V，导向中心点Q与点Q’所确定的直线Q-Q’的公式为y＝hx+e；其中，h为直线Q-Q’的斜率。
则有：
Figure PCTCN2022118562-appb-000001
门侧壁21的距离。
此时：
定位中心点P距门侧壁21的距离X 1＝a–k＝X 2-L*＝sin(n-m)；
定位中心点P距门前壁22的距离Y 1＝b＝Y2+L*cos(n-m)；
导向中心点Q距门侧壁21的距离X 2＝X 1+L*sin(n-m)＝X Q；
导向中心点Q距门前壁22的距离
Figure PCTCN2022118562-appb-000002
(2)如图13C所示，当门体20的旋转角度为m，n≤m≤n+90°时：
定位中心点P距门侧壁21的距离X 1＝X 2-L*cos(m-n)；
定位中心点P距门前壁22的距离Y 1＝Y2-L*sin(m-n)；
导向中心点Q距门侧壁21的距离X 2＝X Q；
导向中心点Q距门前壁22的距离
Figure PCTCN2022118562-appb-000003
(3)如图13D所示，当门体20的旋转角度为m，m≥n+90°时：
定位中心点P距门侧壁21的距离X 1＝X 2+L*cos(180°-m+n)＝X 2-L*cos(m-n)；
定位中心点P距门前壁22的距离Y 1＝Y2-L*sin(180°-m+n)＝Y2-L*sin(m-n)；
导向中心点Q距门侧壁21的距离X 2＝X Q；
导向中心点Q距门前壁22的距离
Figure PCTCN2022118562-appb-000004
结合(2)和(3)，得出，当门体20的旋转角度为m，n≤m时：
定位中心点P距门侧壁21的距离X 1＝X 2-L*cos(m-n)；
定位中心点P距门前壁22的距离Y 1＝Y2-L*sin(m-n)；
导向中心点Q距门侧壁21的距离X 2＝X Q；
导向中心点Q距门前壁22的距离
Figure PCTCN2022118562-appb-000005
通过以上可计算得到门体20转动所围绕的变动点轨迹(X＝(X 1+X 2)/2，Y＝(Y 1+Y2)/2)。
图14A至图14J示出了门体20开启至不同角度时第一铰链组件40的结构图，可以理解的是，第一轴421沿第一轨迹槽433运动，等同于定位中心点P沿第一轨迹线S运动，且第二轴422沿第二轨迹槽434运动，等同于导向中心点Q沿第二轨迹线K运动。
在一些实施例中，如图14A所示，第一轨迹线S包括起始定位点P 0和相较于起始定位点P 0靠近门侧壁21且靠近门前壁22的第七定位点P 7。在门体20打开的过程中，第一轨迹线S由起始定位点P 0向靠近门侧壁21的方向延伸，再以一定的弧度向靠近门侧壁21 且靠近门前壁22的方向延伸至第七定位点P 7。第七定位点P 7为第一轨迹线S的所述另一端。
第二轨迹线K包括导向起始点Q 0和相较于导向起始点Q 0靠近门侧壁21且远离门前壁22的第九导向点Q 9。第二轨迹线K由导向起始点Q 0向靠近门侧壁21且远离门前壁22的方向延伸至第九导向点Q 9，且第二轨迹线K大致呈类椭圆弧状。第一轨迹线S相较于第二轨迹线K更靠近门前壁22且更靠近门侧壁21，也就是说，第一轨迹线S位于第二轨迹线K的所述凹侧。
如此一来，第二轨迹槽434能够有效限定第二轴422的运动，并配合第一轴421在第一轨迹槽433内运动，从而，在门体20打开过程中，第一轴421的运动由第二轴422驱动，以使门体20在旋转的同时向所述内侧移动一定距离，以确保门体20打开时的稳定性。
以下将以冰箱打开的最大角度G 9＞90°(即，第九角度大于90°)为例，详细介绍门体20由关闭状态打开至最大角度G 9过程中，门体20旋转打开至不同角度时，第一轴421相对第一轨迹槽433的位置以及第二轴422相对第二轨迹槽434的位置。
另外，穿过门体20的质心且与门前壁22平行的平面记为质心平面F，在门体20打开过程中，质心平面F随着门体20运动。
如图14A所示，当门体20的打开角度为0°时，门体20处于关闭状态，定位中心点P位于第一轨迹线S的起始定位点P 0，且导向中心点Q位于第二轨迹线K的导向起始点Q 0。在此情况下，导向中心点Q与定位中心点P位于质心平面F的同一侧，且导向中心点Q相较于定位中心点P更远离质心平面F。
如图14B所示，在门体20由大于关闭状态的任意角度打开至小于G 2的任意角度的过程中，第一轴421沿第一轨迹线S的直线轨迹段向靠近门侧壁21的方向移动，第二轴422第二轨迹线K向靠近门侧壁21并远离门前壁22的方向运动。在此情况下，导向中心点Q与定位中心点P位于质心平面F的同一侧，且导向中心点Q相较于定位中心点P更远离质心平面F。
需要说明的是，在门体20由大于关闭状态的任意角度打开至小于G 2的任意角度的过程中，导向中心点Q与定位中心点P的运动趋势不变。当门体20打开至不同角度(该角度在0°至G 2之间)时，第一轴421相对于第一轨迹线S的直线轨迹段的位置不同，第二轴422相对第二轨迹线K的位置不同。
如此一来，当门体20的打开角度大于0°且小于G 2时，选择大于0°且小于G 2的任一个打开角度可以代表门体20打开至对应区间时，第一轴421与第一轨迹槽433的相对位置以及第二轴422与第二轨迹槽434的相对位置。
例如，如图14B和图15A所示，以门体20的打开角度为G 1(如，G 1大于0°且小于G 2)代表该打开角度区间内的位置，以与门体20打开至其它角度时进行对比。
当门体20打开至G 1时，定位中心点P位于第一轨迹线S的第一定位点P 1处，第一定位点P 1相较于起始定位点P 0更靠近门侧壁21。导向中心点Q位于第二轨迹线K的第一导向点Q 1处，第一导向点Q 1相较于起始导向点Q 0靠近门侧壁21且远离门前壁22。
如图14C和图15B所示，当门体20的打开角度为G 2时，门体20旋转打开至G 2。定位中心点P位于第一轨迹线S的直线轨迹段上的第二定位点P 2处，第二定位点P 2相较于第一定位点P 1更靠近门侧壁21。第二定位点P 2为直线轨迹段的靠近门侧壁21的端点。导向中心点Q位于第二轨迹线K的第二导向点Q 2处，第二导向点Q 2相较于第一导向点Q 1靠近门侧壁21且远离门前壁22。
可以理解的是，在门体20由关闭状态打开至G 2的过程中，第一轴421始终沿直线槽段向靠近门侧壁21的方向移动，第二轴422沿第二轨迹槽434向靠近门侧壁21且远离门前壁22的方向运动。
在一些实施例中，G 2可设置为13°至17°中的任一值。例如，G 2可以为13°、14°、15°或17°。
另外，当门体20的打开角度为G 2时，导向中心点Q与定位中心点P位于质心平面F的同一侧，且导向中心点Q相较于定位中心点P更靠近质心平面F。
在一些实施例中，当门体20打开至预设的解锁角度时，所述第一配合部与所述第二配合部脱离锁定。
例如，参见图8A和图8B，当门体20开启至解锁角度时，锁钩540与止挡部513脱离配合。
在一些实施例中，解锁角度设置为G 1，也就是说，当门体20打开至G 1时，锁钩540与止挡部513脱离配合。
在一些实施例中，解锁角度设置为G 2，也就是说，当门体20打开至G 2时，锁钩540与止挡部513脱离配合。
可以理解的是，在门体20从关闭状态打开至角度G 2的过程中，门体20每旋转单位角度向所述内侧移动的距离较小，从而有利于实现锁钩540与止挡部513的快速分离，提高门体20开启的顺畅度。
如图14D至图14G所示，在门体20由大于G 2的任意角度打开至小于G 7的任一角度的过程中，第一轴421沿第一轨迹线S的曲线轨迹段向靠近门侧壁21且靠近门前壁22的方向运动，第二轴422沿第二轨迹线K向靠近门侧壁21且远离门前壁22的方向运动。
需要说明的是，在门体20由大于G 2的任意角度打开至小于G 7的任一角度的过程中，导向中心点Q与定位中心点P的运动趋势不变。当门体20打开至不同角度(该角度在G 2至G 7之间)时，第一轴421相对于第一轨迹线S的直线轨迹段的位置不同，第二轴422相对第二轨迹线K的位置不同。
如此一来，当门体20的打开角度大于G 2且小于G 7时，选择大于G 2且小于G 7的任一个打开角度可以代表门体20打开至该区间时，第一轴421与第一轨迹槽433的相对位置，以及第二轴422与第二轨迹槽434的相对位置。
例如，如图14D至图14G所示，以G 3、G 4、G 5、G 6代表该打开角度区间内的位置，以与门体20打开至其它状态时进行对比。其中，G 2＜G 3＜G 4＜G 5＜G 6＜G 7。
参见图14D至图14G以及图15C至图15F，在门体20由大于G 2且小于G 3的任意角度依次打开至G 3、G 4、G 5和G 6的过程中，定位中心点P沿第一轨迹线S向靠近门侧壁21且靠近门前壁22的方向依次运动至第三定位点P 3、第四定位点P 4、第五定位点P 5和第六定位点P 6。对应地，导向中心点Q沿第二轨迹线K向靠近门侧壁21且远离门前壁22的方向依次运动至第三导向点Q 3、第四导向点Q 4、第五导向点Q 5和第六导向点Q 6。
在一些实施例中，G 3为22°至30°之间的任一值。例如，第三角度G 3为22°、25°、28°或30°。
在一些实施例中，如图14E和图15D所示，当门体20打开至G 4时，门体20的质心平面F移动至定位中心点P与导向中心点Q之间。G 4为43°至47°中的任一值。例如，G 4为43°、45°或47°。
在一些实施例中，如图14F及图15E所示，当门体20打开至G 5时，第一侧棱W超出基准平面M0的距离达到最大值。在此情况下，第一侧棱W与基准平面M0的距离小于第一间隙101的宽度，从而有效地避免了门体20在打开的过程中与橱柜100发生碰撞。
在一些施例中，G 5为46°至50°中的任一值。例如，G 5为46°、48°或50°，也就是说，门体20打开至约48°时，第一侧棱W超出基准平面M0的距离达到最大。
如图14G及图15F所示，当门体20打开至G 6时，导向中心点Q运动至第二轨迹线K的中点Q 6。在此情况下，起始导向点Q 0与第九导向点Q 9所在的直线Q 0-Q 9(第二轨迹线K的两端点所在的直线)大致平行于基准平面M0，也就是说，线段Q 0Q 9的垂直平分线L0与基准平面M0近似垂直。
需要说明的是，近似垂直定义为垂直平分线L0与基准平面M0的夹角为88°至92°中的任一值。
上述设置限定了第二轨迹槽434的延伸方向，从而使得在门体20打开的过程中，第一轴421相对第一轨迹槽433、第二轴422相对第二轨迹槽434的同步运动更加顺畅，有利于提高门体20打开的流畅度和稳定度。
在一些施例中，当门体20处于关闭状态时，第二轨迹线K所在的椭圆的长轴所在的 直线与基准平面M0之间的夹角为G 6，有利于提高门体20打开的流畅度。
在一些实施例中，线段Q 0Q 9所在的直线平行于第二轨迹线K所在椭圆的长轴，从而使得第二轨迹线K的曲率变化更平缓，有利于提高第二轴422沿第二轨迹槽434运动的流畅度。
在一些实施例中，G 6等于或接近G9/2，例如，G 6∈[G 9/2-6°，G 9/2]。那么，当门体20的打开至G 6时，导向中心点Q运动第二轨迹线K的中点。如此一来，在门体20打开过程中，第二轴422相对第二轨迹槽434的运动轨迹更平稳，从而有利于提高门体20打开的流畅度。
在一些实施例中，G 9为112°至120°中的任一值，例如，G 9为112°、115°、118°或120°。G 6为50°至60°中的任一值，例如，50°、53°、56°或60°。
需要说明的是，当门体20打开至G 6时，门体20的质心平面F位于定位中心点P与导向中心点Q之间。
如图14H及图15G所示，当门体20打开G 7时，定位中心点P位于第一轨迹线S上的第七定位点P 7处，导向中心点Q位于第二轨迹线K上的第七导向点Q 7处。第七定位点P 7较第六定位点P 6靠近门侧壁21且靠近门前壁22，且第七导向点Q 7较第六导向点Q 6靠近门侧壁21且远离门前壁22。此时，定位中心点P运动至第一轨迹线S的曲线轨迹段的所述另一端。门体20的质心平面F位于定位中心点P与导向中心点Q之间。
这种一些实施例中，G 7可设置为63°至67°中的任一值。例如，G 7可以为63°、64°、65°或67°。
在一些实施例中，如图14I、图14J、图15H和图15I所示，在门体20由大于G 7的任一值打开至G 9(约116°)的过程中，第一轴421沿第一轨迹线S的曲线轨迹段向靠近门侧壁21且靠近门前壁22的方向运动，第二轴422沿第二轨迹线K向靠近门侧壁21且远离门前壁22的方向运动。
需要说明的是，在门体20由大于G 7的任意角度打开至G 9时，导向中心点Q与定位中心点P的趋势保持一致。其区别仅在于：当门体20打开至不同角度(该角度在G 7至G 9之间)时，第一轴421相对于第一轨迹线S的曲线轨迹段的位置不同，第二轴422相对于第二轨迹线K的位置不同。
如此一来，当门体20的打开角度大于G 7且小于等于G 9时，选择大于G 7且小于等于G 9的任一个打开角度，可以代表门体20打开至该区间时，第一轴421与第一轨迹槽433的相对位置，以及第二轴422与第二轨迹槽434的相对位置。
例如，如图14I和图14J所示，以G 8和G 9代表该打开角度区间内的位置，以与门体20打开至其它状态时进行对比。其中，G 7＜G 8＝90°＜G 9。
如图14I和图15H所示，当门体打开至G 8时，定位中心点P位于第一轨迹线S上的第八定位点P 8，导向中心点Q位于第二轨迹线K上的第八导向点Q 8。第八定位点P 8相较于第七定位点P 7远离门侧壁21且远离门前壁22，第八导向点Q 8相较于第七导向点Q 7靠近门侧壁21且远离门前壁22。此时，质心平面F位于定位中心点P与导向中心点Q之间。
如图14J及图15I所示，当门体打开至G 9时，定位中心点P位于第一轨迹线S那个的第九定位点P 9，导向中心点Q位于第二轨迹线K上的第九导向点Q 9。第九定位点P 9相较于第八定位点P 8远离门侧壁21且远离门前壁22，第九导向点Q 9相较于第八导向点Q 8靠近门侧壁21且远离门前壁22。此时，质心平面F位于定位中心点P与导向中心点Q之间。
在一些实施例中，G 1、G 2、G 3、G 4、G 5、G 6、G 7、G 8和G 9依次记为第一角度G 1、第二角度G 2、第三角度G 3、第四角度G 4、第五角度G 5、第六角度G 6、第七角度G 7、第八角度G 8和最大角度G 9。
起始定位点P 0、第一定位点P 1和第二定位点P 2沿直线轨迹段向靠近门侧壁21的方向分布，第三定位点P 3、第四定位点P 4、第五定位点P 5、第六定位点P 6和第七定位点P 7沿所述曲线轨迹段向靠近门侧壁21且靠近门前壁22的方向分布。第七定位点P 7、第八定位 点P 8和第九定位点P 9沿所述曲线轨迹段向远离门侧壁21且远离门前壁22的方向分布。
需要说明的是，本公开对第九定位点P 9和第八定位点P 8与第三定位点P 3、第四定位点P 4、第五定位点P 5和第六定位点P 6的相对位置不做限定。在一些施例中，第八定位点P 8位于第六定位点P 6和第七定位点P 7之间，且第九定位点P 9靠近第三定位点P 3。
起始导向点Q 0、第一导向点Q 1、第二导向点Q 2、第三导向点Q 3、第四导向点Q 4、第五导向点Q 5、第六导向点Q 6、第七导向点Q 7、第八导向点Q 8和第九导向点Q 9依次沿第一轨迹线S向靠近门侧壁21且远离门前壁22的方向分布。
综上所述，在门体20打开至小于第二角度G 2的任意角度的过程中，第一轴421沿第一轨迹槽433的直线槽段向靠近门侧壁21的方向移动。
在门体20继续打开至第二角度G 2的过程中，第一轴421沿第一轨迹槽433向靠近门侧壁21的方向的移动至所述直线槽段的所述另一端(第二定位点P 2)。
在门体20继续打开至小于第六角度G 6的任意角度的过程中，第一轴421沿第一轨迹槽433的曲线槽段向靠近门侧壁21且靠近门前壁22的方向运动。
在门体20继续打开至第六角度G 6的过程中，第一轴421沿第一轨迹槽433向靠近门侧壁21且靠近门前壁22的方向运动至所述曲线槽段的所述另一端(第七定位点P 7)。
在门体20继续打开至大于第七角度G 7的任意角度的过程中，第一轴421沿第一轨迹槽433的所述曲线槽段向远离门侧壁21且远离门前壁22的方向运动。
在门体20打开的整个过程(门体20从0°打开至最大角度G 9的过程)中，第二轴422沿第二轨迹槽434始终向靠近门侧壁21且远离门前壁22的方向运动。
在一些施例中，第一轴421和第二轴422固定于第一铰链板410上，且相对于第一铰链板410静止，第一轨迹槽433和第二轨迹槽434设于门体20上，且相对于门体静止，因此，轴心线段PQ相对于轨迹槽(包括第一轨迹槽433和第二轨迹槽434)的运动等同于第一铰链板410相对于门体20的运动。
由于第一铰链板410相对于箱体10静止，因此，轴心线段PQ相对于轨迹槽的运动亦等同于箱体10相对于门体20的运动。根据运动的相对性，可由箱体10相对门体20的运动情况得出门体20相对箱体10的运动情况。
以下说明中，为方便阐述，将以轴心线段PQ相对于门体20的运动来表示箱体10相对于门体20的运动，并以此根据相对运动的原理推出门体20相对箱体10的运动情况。
可以理解的是，以门体20的打开角度为G 2和G 7为分界线，可以将门体20打开的整个过程划分为三个阶段。以下，将结合第一双轴组件420与所述轨迹槽的配合关系以及轴心线段PQ的运动轨迹对该三个阶段进行详细说明。
【第一阶段】
在第一阶段中，如图15B所示，门体20由0°经过第一角度G 1打开至第二角度G 2。在该过程中，定位中心点P由起始定位点P 0沿第一轨迹线S的直线轨迹段向靠近门侧壁21的方向移动，且导向中心点Q由起始导向点Q 0沿第二轨迹线K向靠近门侧壁21且远离门前壁22的方向运动。
定位中心点P由起始定位点P 0沿第一轨迹线S的直线轨迹段经过第一定位点P 1移动至第二定位点P 2。导向中心点Q由起始导向点Q 0沿第二轨迹线K经过第一导向点Q 1运动至第二导向点Q 2。
在第一阶段中，以第一轨迹槽433和第二轨迹槽434为参照物，轴心线段PQ在旋转的同时向所述外侧运动。例如，轴心线段PQ由P 0Q 0处顺时针旋转并向所述外外侧依次运动至P 1Q 1和P 2Q 2处。
可以理解的是，第一轨迹槽433和第二轨迹槽434相对于门体20静止，轴心线段PQ相对于箱体10静止，轴心线段PQ的运动可以代表箱体10的运动。因此，以门体20为参照物时，在门体20由关闭状态打开至第二角度G 2的过程中，箱体10相对于门体20顺时针旋转并向所述外侧移动一定距离。根据运动的相对性，当以箱体10为参照物时，在门体20由关闭状态打开至第二角度G 2过程中，门体20相对于箱体10逆时针旋转并向所述内侧移动一定距离。
如此一来，在第一侧棱W因门体20旋转而向所述外侧移动的同时，又因门体20向所述内侧的移动而向所述内侧移动，从而可以防止门体20与橱柜100干涉。
【第二阶段】
在第二阶段中，如图15B至图15G以及图16所示，门体20由第二角度G 2依次经过第三角度G 3、第四角度G 4、第五角度G 5、第六角度G 6打开至第七角度G 7。
在该过程中，定位中心点P由第二位移点P 2沿第一轨迹线S的曲线轨迹段向靠近门侧壁21且靠近门前壁22的方向依次经过第三位移点P 3、第四位移点P 4、第五位移点P 5、第六位移点P 6运动至第七位移点P 7。导向中心点Q由第二导向点Q 2沿第二轨迹线K向靠近门侧壁21且远离门前壁22的方向依次经过第三导向点Q 3、第四导向点Q 4、第五导向点Q 5、第六导向点Q 6运动至第七导向点Q 7。
在第二阶段中，以第一轨迹槽433和第二轨迹槽434为参照物，轴心线段PQ在旋转的同时向所述外侧运动。例如，轴心线段PQ由P 2Q 2处顺时针旋转并向所述外侧依次运动至P 3Q 3、P 4Q 4、P 5Q 5、P 6Q 6和P 7Q 7处。
可以理解的是，第一轨迹槽433和第二轨迹槽434相对于门体20静止，轴心线段PQ相对于箱体10静止，轴心线段PQ的运动可以代表箱体10的运动。因此，以门体20为参照物时，在门体20由第二角度G 2打开至第七角度G 7的过程中，箱体10相对于门体20顺时针旋转并沿所述曲线轨迹段向所述外侧且向前侧(靠近门体20的方向)移动。根据运动的相对性，当以箱体10为参照物时，在门体20由第二角度G 2打开至第七角度G 7的过程中，门体20相对于箱体10逆时针旋转并沿曲线轨迹段向所述内侧且向后侧(靠近箱体10的方向)移动。
如此一来，在第一侧棱W因门体20旋转而向所述外侧移动的同时，又因门体20向所述内侧的移动而向所述内侧移动，从而可以防止门体20与橱柜100干涉。另外，门体20在旋转的同时还向靠近箱体10的方向运动，从而可以亦避免门体20因旋转而过多地向远离箱体10的方向运动，从而有利于提高门体20与箱体10的整体性。
【第三阶段】
在第三阶段中，如图15H、图15I和图17所示，门体20由第七角度G 7(约90°)经过第八角度G 8打开至最大角度G 9。
在该过程中，定位中心点P由第七位移点P 7沿第一轨迹线S的上述曲线轨迹段向远离门侧壁21且远离门前壁22的方向经过第八定位点P 8运动至第九位移点P 9。导向中心点Q由第七导向点Q 7沿第二轨迹线K向靠近门侧壁21且远离门前壁22的方向经过第八导向点Q 8运动至第九导向点Q 9。
在第三阶段中，以第一轨迹槽433和第二轨迹槽434为参照物，则在门体20由第七角度G 7打开至最大角度G 9的过程中，轴心线段PQ在顺时针旋转的同时向所述内侧移动。例如，轴心线段PQ由P 7Q 7处顺时针旋转并向所述内侧依次运动至P 8Q 8和P 9Q 9处。
可以理解的是，第一轨迹槽433和第二轨迹槽434相对于门体20静止，轴心线段PQ相对于箱体10静止，轴心线段PQ的运动可以代表箱体10的运动。
因此，以门体20为参照物时，在门体20由第七角度G 7打开至最大角度G 9的过程中，箱体10相对于门体20顺时针旋转并向所述内侧且向后侧(远离门体20的方向)移动。根据运动的相对性，当以箱体10为参照物时，在门体20由第七角度G 7打开至最大角度G 9的过程中，门体20相对于箱体10逆时针旋转并向所述外侧且向前侧(远离箱体10的方向)移动。
可以理解的是，由于在第三阶段中，门体20是由90°开启至更大的角度(即最大角度G 9)，因此，第一侧棱W不会与橱柜100发生干涉，但仍有可能与箱体10发生干涉。
因此，在第三阶段中，通过将门体20设置为相对于箱体10逆时针旋转并向所述外侧且向前侧(远离箱体10的方向)移动，从而可以使得第一侧棱W在门体20的带动下，向远离箱体10的方向移动，防止第一侧棱W与箱体10发生干涉。另外，由于门体20向所述外侧运动，使得门体20可以在第三阶段中打开至更大角度，且可以防止门体20遮挡所述取放口。
综合第一阶段和第二阶段，在门体20由关闭状态打开至第七角度G 7的过程中，门体20始终保持向所述内侧移动的趋势。相对于门体20的关闭状态，当门体20打开至第七角度G 7时，门体20向所述内侧移动的距离记为第一距离D1。
在门体20打开的第三阶段中，相对于门体20打开至第七角度G 7时的状态，当门体20打开至最大角度G 9时，门体20向所述外侧移动的距离记为第二距离D2。
在一些实施例中，第一距离D1＞第二距离D2。也就是说，门体20先向所述内侧移动的横向位移大于其后向所述外侧移动的横向位移。
综上所述，在门体20由关闭状态打开至最大角度G 9的过程中，门体20绕一个动态变化的轴旋转，该动态变化的轴先向所述内侧移动第一距离D1，再向所述外侧移动第二距离D2，从而使得门体20先向所述内侧移动第一距离D1，再向所述外侧移动第二距离D2。第一轴421相对于第一轨迹槽433始终运动，且第二轴422相对于第二轨迹槽434始终运动。
在一些实施例中，在门体20由关闭状态打开至最大角度G 9的过程中，质心平面F与第一轴421和第二轴422的相对位置关系不断变化。
参见图14A至图14D，门体20由关闭状态打开至第三角度G 3时，第一轴421与第二轴422位于质心平面F的同一侧。
参见图14E至图14J，在门体20由第四角度G 4打开至最大角度G 9的过程中，质心平面F位于第一轴421与第二轴422之间。
可以理解的是，在门体20打开的大部分的行程(开启角度从约45°至约116°)中，质心平面F始终位于第一轴421与第二轴422之间，从而有利于提高门体20在打开过程中的稳定性。
下面，将结合轴心线段PQ的中点与质心平面F的距离在门体20开启过程中的变化趋势，对质心平面F与第一轴421和第二轴422的相对位置关系进行详细介绍。
参见图14E至图14J，轴心线段PQ的中点记为轴心中点E。轴心中点E与质心平面F的距离记为偏移距离I。当轴心中点E位于质心平面F靠近门前壁22的一侧时，偏移距离I为正数，当轴心中点E位于质心平面F远离门前壁22的一侧时，偏移距离I为负数，当轴心中点E位于质心平面F上时，偏移距离I为0。
在门体20由第四角度G 4打开至最大角度G 9的过程中，轴心中点E与质心平面F的偏移距离I呈减少趋势。例如，当门体20依次打开至第四角度G 4、第五角度G 5、第六角度G 6、第七角度G 7、第八角度G 8和最大角度G 9时，偏移距离依次记为I 4、I 5、I 6、I 7、I 8和I 9，其中，I 4＞I 5＞I 6＞I 7＞I 8＞0≥I 9。
可以理解的是，门体20打开的过程中，随着开启角度的增加，门体20的力矩也会随之增加，从而导致门体20的稳定性变差，容易产生晃动。
因此，本公开的一些实施例将轴心中点E与质心平面F的偏移距离I设置为：随着门体20的开启角度增大，偏移距离I减小，也就是说，随着门体20的开启角度增大，质心平面F随之移动，并靠近轴心线段PQ的中点，从而可以增强门体20打开过程中的稳定性。
在一些实施例中，当门体20的开启角度为G a时，轴心中点E位于质心平面F上，偏移距离I为0。例如，角度G a为110°至116°中的任一值(如110°、113°、116°)，这样，参见图14J，当门体20打开至最大角度G 9时，质心平面F靠近轴心中点E(例如，I9为-1mm至1mm中的任一值)，从而有利于提高门体20开启至最大角度G 9时的稳定性。
在一些实施例中，在门体20由第八角度G 8(约90°)打开至最大角度G 9的过程中，偏移距离I为-4mm至4mm中的任一值(如-4mm、0或4mm)，从而可以有效增强门体20打开至较大角度(如门体打开至第八角度G 8至最大角度G 9之间)时的稳定性。
在一些实施例中，如图15B和图16所示，在门体20由关闭状态打开至第二角度G 2的过程(即门体打开的第一阶段)中，第一轴421沿第一轨迹槽433的所述直线槽段做直线运动，门体20每旋转打开单位角度向所述内侧移动第三距离D3(即，第一边际距离)。在门体20由第二角度G 2打开至第七角度G 7的过程(即门体打开的第二阶段)中，第一轴 421沿第一轨迹槽433的所述曲线槽段做曲线运动，门体20每旋转打开单位角度向所述内侧移动第四距离D4(即，第二边际距离)，且第三距离D3＞第四距离D4。
可以理解的是，在门体20打开的第一阶段内，门体20每打开单位角度向所述内侧移动的距离大，从而使得门体20带动第一侧棱W向所述内侧移动的距离大，使第一侧棱W超出基准平面M0的距离小于第一间隙101的宽度，避免第一侧棱W与橱柜100发生碰撞。
在一些实施例中，如图17所示，在门体20由第七角度G 7打开至最大角度G 9的过程中，第一轴421沿第一轨迹线S向远离门侧壁21且远离门前壁22的方向做撤回运动。门体20由第七角度G 7打开至第八角度G 8的阶段记为第一撤回阶段，门体20由第八角度G 8打开至最大角度G 9的阶段记为第二撤回阶段。
在第一撤回阶段，门体20每旋转打开单位角度向所述外侧移动第五距离D5。在第二撤回阶段，门体20每旋转打开单位角度向所述外侧移动第六距离为D6，且第六距离D6＞第五距离D5。例如，第五距离D5：第六距离D6∈[0.05，0.1]。
可以理解的是，在第一撤回阶段中，门体20由第七角度G 7(约65°)打开至第八角度G 8(约90°)，门体20每打开单位角度，向所述外侧移动的距离小，从而可以避免门体20在打开至90°时超出基准平面M0过多，这样，门体20可以继续打开至更大角度。
在第二撤回阶段中，门体20由90°打开至最大角度G 9，且门体20每打开单位角度，向所述外侧移动的距离大，从而可以避免门体20遮挡所述取放口，有利于提高用户在取放食材时的使用体验。
在一些实施例中，如图18和图19所示，当门体20打开至最大角度G 9时，定位中心点P位于第九定位点P 9，当门体20打开至第三角度G 3时，定位中心点P位于第三定位点P 3。最大角度G 9与第三角度G 3大致相差90°，且第九定位点P 9靠近第三定位点P 3。
例如，最大角度G 9与第三角度G 3的差值为88°至92°之间的任一值(如88°、90°或92°)。第九定位点P 9与第三定位点P 3之间的距离不大于1mm。
如此一来，在门体20由第三角度G 3打开至最大角度G 9的过程中，第一轴421先由第三定位点P 3向靠近门侧壁21且靠近门前壁的方向运动至第七定位点P 7，再向远离门侧壁21且远离门前壁22的方向运动至靠近第三定位点P 3的第九定位点P 9，也就是说，在门体20由第三角度G 3打开至最大角度G 9的过程中，第一轴421近似进行了一个往返运动。
可以理解的是，通过将第九定位点P 9设置为靠近第三定位点P 3，使第一轴421可以在第一轨迹槽433中间往返运动，从而有利于降低第一轨迹槽433在门体20的厚度方向上的尺寸，进而有利于降低门体20的厚度。
在一些实施例中，第二轨迹槽434包括第一曲线槽和第二曲线槽，相应地，第二轨迹线K包括第一曲线段和第二曲线段。所述第一曲线段的一端较第一曲线段的另一端靠近门前壁22且远离门侧壁21，所述第二曲线段的一端连接所述第一曲线段的所述另一端，且所述第二曲线段的另一端向靠近门侧壁21且远离门前壁22的方向延伸。
第一侧棱W位于所述第一曲线段的凹侧，且位于所述第二曲线段的凸侧。
在门体20从第八角度G8打开至第九角度G9的过程中，第二轴422在所述第二曲线槽中运动，导向中心点Q从所述第二曲线段的所述一端运动至所述另一端；与此同时，第一轴421在第一轨迹槽433中运动。
在一些实施例中，第二轨迹槽434包括第三曲线槽和第四曲线槽，相应地，第二轨迹线K包括第三曲线段和第四曲线段。所述第三曲线段的一端较第三曲线段的另一端靠近门前壁22且远离门侧壁21，所述第四曲线段的一端连接所述第三曲线段的所述另一端，且所述第四曲线段的另一端向靠近门侧壁21且靠近门前壁22的方向延伸。
第一侧棱W位于所述第三曲线段的凹侧，且位于所述第四曲线段的凹侧。
在门体20从第八角度G8打开至第九角度G9的过程中，第二轴422在第二曲线槽中运动，导向中心点Q从所述第四曲线段的所述一端运动至所述另一端；与此同时，第一轴421在第一轨迹槽433中运动。
在一些实施例中，如图14A所示，当门体20关闭时，第一轴421的定位中心点P位于第一轨迹线S的起始定位点P 0，起始定位点P 0与基准平面M0的距离为L 1(即第一预设距离)。门前壁22与所述取放口所在平面近似平行，且与基准平面M0大致垂直。
如图14I所示，当门体20打开至约90°时，门前壁22与箱体侧壁12近似平行；第一轴421的定位中心点P位于第一轨迹线S的第八定位点P 8，且定位中心点P与门前壁22的距离为L 2(即第二预设距离)。
可以理解的是，当门体20打开至约90°时，若L 1与L 2近似相等(即L 1与L 2的不大于1mm)，则门前壁22大致位于基准平面M0中。若L 1大于L 2，则门前壁22位于所述基准平面M0的所述内侧。若L 1小于L 2，则门前壁22位于基准平面M0的所述外侧。
因此，本公开的一些实施例通过将L 1与L 2设置为近似相等或设置为L 1大于L 2，从而使门体20可以从90°打开至更大的角度。在一些实施例中，也可以将L 1与L 2设置为L 1小于L 2，且L 2与L 1的差值小于0.2倍的第一间隙101的宽度，从而可以提高门体20从90°打开至更大角度的过程中的稳定性。
在一些实施例中，如图20所示，定义位于基准平面M0的所述外侧的一个平面为第一参考平面M1，第一参考平面M1与基准平面M0平行，且与基准平面M0之间的距离为第一间隙101的宽度(即3mm至5mm)。
在一些实施例中，第一参考平面M1为橱柜100的靠近所述基准平面M0的内壁所在的平面。
定义所述取放口所在平面为第二参考平面M2，第二参考平面M2垂直于第一参考平面M1。第一参考平面M1和第二参考平面M2相对于箱体10保持静止，也就是说，在门体20相对箱体10的打开过程中，第一参考平面M1与第二参考平面M2不会随门体20的移动而移动。
定义箱体10的顶壁所在的平面为水平参考面，所述水平参考面垂直于第一参考面M1和第二参考吗M2，且第一侧棱W和第二侧棱N均垂直于所述水平参考面。第一侧棱W在所述水平参考面上的正投影为第一投影点W’，第二侧棱在所述水平参考面上的正投影为第二投影点N’。
需要说明的是，第二参考平面M2为箱体10所限定的所述取放口所在平面，其不因箱体所述取放口处设置可变形的门封等其他部件而前移。
参见图20，在门体20从关闭状态打开至第五角度G 5的过程中，第一投影点W’沿第一侧棱轨迹W 0W 5向靠近第一参考平面M1且靠近第二参考平面M2的方向运动。也就是说，在门体20从关闭状态打开至第五角度G 5的过程中，第一侧棱W与第一参考平面的M1的距离呈减小趋势，第一侧棱W超出基准平面M0的距离呈增大趋势。当门体20打开至第五角度G 5时，第一侧棱W超出基准平面M0的距离最大，且与第一参考平面M1的距离最小。
这样，可以避免第一侧棱W在门体20打开的过程中与橱柜100发生碰撞。
在门体20从关闭状态打开至第五角度G 5的过程中，第二投影点N’先沿第二侧棱轨迹N 0N 3向远离第一参考平面M1且靠近第二参考平面M2的方向运动，再沿第二侧棱轨迹N 3N 5向远离第一参考平面M1且远离第二参考平面M2的方向运动。
也就是说，在门体20由关闭状态打开至第三角度G 3的过程中，第二侧棱N与第二参考平面的M2距离呈减小趋势。在门体20由第三角度G 3打开至第五角度G 5的过程中，第二侧棱N与第二参考平面M2的距离呈增大趋势。当门体20打开至第三角度G 3时，第二侧棱N与第二参考平面M2的距离最小。这样设置，可以有效避免第二侧棱N在门体20打开的过程中与箱体10发生干涉。
在一些实施例中，第一侧棱轨迹W 0W 5与第二侧棱轨迹N 0N 5均为光滑曲线。
在一些实施例中，第一侧棱轨迹W 0W 5与第一参考平面M1的距离大于第七距离D7，也就是说，第一侧棱轨迹W 0W 5中距离第一参考平面M1最近的第一侧棱轨迹点W5距离第一参考平面M1的距离大于第七距离D7。第二侧棱轨迹N 0N 5与第二参考平面M2的距离大于第八距离D8。
在一些实施例中，门体的厚度为Da，则第七距离D7不小于0.5*Da，且不大于0.75*Da。第八距离D8不小于0.12*Da，且不大于0.2*Da。
例如，当门体20的厚度Da为2cm至4cm中的任一值时，则第七距离D7可以为0.676*Da，第八距离D8可以为0.165*Da。
如此设置，使得在门体20从关闭状态打开至第五角度G 5的过程中，第二侧棱N可以与箱体10保持适当的距离。例如，第二侧棱N不会挤压箱体10，也不会距离箱体10过远，导致门体20与箱体10的整体性下降。
另外，在门体20从关闭状态打开至第五角度G 5的过程中，第一侧棱W超出基准平面M0的距离较小，使得第一侧棱W不会与橱柜100的内壁发生碰撞，且有利于提高门体20的稳定性。
在一些实施例中，如图20所示，在门体20由关闭状态打开至第五角度G 5的过程中，第一侧棱W的运动方向与第一参考平面M1的夹角记为第一方向夹角，第一方向夹角小于15°。第二侧棱N的运动方向与第二参考平面M2的夹角记为第二方向夹角，第二方向夹角小于25°。如此一来，在门体20打开的过程中，第一侧棱W不会与橱柜100发生碰撞，且第二侧棱N不会挤压箱体10。
需要说明的是，第一侧棱W的运动方向为第一投影点W’在第一侧棱轨迹W 0W 5上所在位置的第一侧棱轨迹W 0W 5的切线方向；第二侧棱N的运动方向为第二投影点N’在第二侧棱轨迹N 0N 5上所在对应位置处的第二侧棱轨迹N 0N 5的切线方向。
在门体20由关闭状态开启至第五角度G 5的过程中，第一侧棱W的运动方向与第一参考平面M1所形成的第一方向夹角呈减小趋势。第二侧棱N的运动方向与第二参考平面M2所形成的第二方向夹角呈减小趋势，且所述第二方向夹角先减小至0°，而后继续减小至负角度，从而使得第二侧棱N在门体20的开启过程中，先靠近第二参考平面M2，再远离第二参考平面M2。如此设置，有利于提高门体20开启的流畅度，避免出现卡顿。
在一些实施例中，在门体20由关闭状态打开至第五角度G 5的过程中，第一侧棱轨迹W 0W 5在第一参考平面M1的正投影为线段W 0’W 5’，第二侧棱轨迹N 0N 5在第二参考平面M2上的正投影为线段N 0’N 5’，且线段W 0’W 5’与线段N 0’N 5’的长度的比值在0.3至0.7之间，例如，线段W 0’W 5’与线段N 0’N 5’的长度的比值为0.3、0.4、0.5或0.7。
参见图20，在门体20从第五角度G 5打开至最大角度G 9的过程中，第一投影点W’沿第一侧棱轨迹W 5W 9向远离第一参考平面M1且靠近第二参考平面M2的方向运动，第一侧棱W与第一参考平面M1的距离呈增大趋势。第二投影点N’沿第二侧棱轨迹N 5N 9向远离第二参考平面M2且远离第一参考平面M1的方向运动，且第二侧棱N与第二参考平面的M2距离呈增大趋势。
在一些施例中，第一侧棱轨迹W 5W 9与第二侧棱轨迹N 5N 9均为光滑曲线，第一侧棱轨迹W 0W 5与第三侧棱轨迹W 5W 9光滑过渡连接，且第二侧棱轨迹N 0N 5与第二侧棱轨迹N 5N 9光滑过渡连接。
在一些实施例中，在门体20由第五角度G 5打开至最大角度G 9的过程中，第一侧棱W的运动方向与第一参考平面M1的夹角记为第三方向夹角，第三方向夹角小于40°。第二侧棱N的运动方向与第二参考平面M2的夹角记为第四方向夹角，第四方向夹角小于90°。
需要说明的是，第一侧棱W的运动方向为第一投影点W’在第一侧棱轨迹W 5W 9上所在对应位置的第一侧棱轨迹W 5W 9的切线方向；第二侧棱N的运动方向为第二投影点N’在第二侧棱轨迹N 5N 9上所在对应位置的第二侧棱轨迹N 5N 9的切线方向。这样，可以使得门体20在开启过程中不会过多地超出基准平面M0。
在门体20由第五角度G 5打开至最大角度G 9的过程中，所述第三方向夹角呈增大趋势，且所述第四方向夹角亦呈增大趋势。且在门体20每打开单位角度时，所述第三方向夹角和所述第四方向夹角的增量大致保持不变。
例如，在门体20由第五角度G 5打开至最大角度G 9的过程中，门体20每打开单位角度，所述第三方向夹角的增量均保持在0.7°至1.5°中的任一值(如0.7、0.9°、1.2°或1.5°)， 第四方向夹角的增量均保持在0.4°～1°中的任一值(如0.4°。0.6°、0.8°或1°)。
如此设置，可以使得第一侧棱轨迹W 5W 9与第二侧棱轨迹N 5N 9的变化趋势稳定且平缓，有利于提高门体20旋转的流畅度。
在一些实施例中，在门体20由第五角度G 5打开至最大角度G 9的过程中，门体20每打开单位角度，所述第三方向夹角的增量可以是0.7°至1.5°(如0.7、0.9°、1.2°或1.5°)中的任一值，所述第四方向夹角的增量可以是0.4°至1°中的任一值(如0.4°。0.6°、0.8°或1°)。
如图21所示，定位中心点P沿第一轨迹线S移动的方向记为第一位移方向；导向中心点Q沿第二轨迹线K运动的方向记为第二位移方向。第一位移方向与第二位移方向所形成的夹角记为位移夹角ω。
在门体20由关闭状态打开至第二角度G 2的过程中，门体20会旋转至第一中间角度Gi和第二中间角度Gii，第一中间角度Gi和第二中间角度Gii均为0°至第二角度G 2之间的任一值，且第一中间角度Gi≠第二中间角度Gii。
在一些实施例中，第一位移方向与第二位移方向所形成的位移夹角ω基本不变。需要说明的是，基本不变指的是位移夹角ω在较小范围内变化，以保持相对恒定。
例如，当门体20打开至第一中间角度Gi时，第一位移方向与第二位移方向所形成的位移夹角为第一位移夹角ω Gi，当门体20打开至第二中间角度Gii时，第一位移方向与第二位移方向所形成的位移夹角为第二位移夹角ω Gii，则，第一位移夹角ω Gi的角度与第二位移夹角ω Gii的角度之间的差值不大于预设角度，例如，所述预设角度为8°。
在一些实施例中，如图21所示，门体20关闭时，位移夹角为ω 0，门体20打开至第一角度G 1时，位移夹角为ω 1，门体20打开至第二角度G 2时，位移夹角为ω 2。其中，位移夹角ω 1与位移夹角ω 2之间的差值Δω在0°至4°之间。
例如，Δω可以为0°、2°或4°。位移夹角为ω 1和位移夹角为ω 2均为56°至60°中的任一值。
在一些实施例中，在门体20由关闭状态打开至第二角度G 2的过程中，第一轴421在第一轨迹槽433的所述直线槽段中做直线运动，因此，第一位移方向与第一参考平面M1之间的夹角保持不变。在门体20由第二角度G 2打开至第七角度G 7的过程中，第一轴421在第一槽的所述曲线槽段中做曲线运动，因此，第一位移方向与第一参考平面M1之间的夹角呈减小趋势。
在一些实施例中，第一轨迹槽433的所述曲线槽段为类圆弧槽，也就是说，第一轨迹线S的所述曲线轨迹段为类圆弧。在门体20由第二角度G 2打开至第七角度G 7的过程中，第一轴421相对第一轨迹槽433作等半径圆弧运动。第一位移方向与第一参考平面M1之间的夹角的在32°至35°之间(如32°、33°、34°或35°)。
需要说明的是，所述类圆弧槽为具有类圆弧的中心轨迹线的槽。所述类圆弧包括标准圆弧(即，标准圆的一部分)，以及因加工制造、装配误差或轻微变形等形成的与标准圆弧有区别但仍具有圆弧轨迹特征的非标准圆弧。
在门体20从关闭状态打开至最大角度G 9的过程中，第二位移方向与第二参考平面M2之间的夹角呈减小趋势，且该夹角在12°至15°之间(如12°、13°或15°)。
如上设置，使得位移夹角ω在门体20从关闭状态打开至最大角度G 9的过程中的变化较小，因此，当用户用恒定的力(约5N)打开门体20时，第一双轴组件420所受的力变化不大，从而有利于提高门体开启时运动的流畅度，还可以降低第一双槽组件在门体开启过程中对所述轨迹槽的磨损，有利于提高铰链组件30的使用寿命。
在一些实施例中，如图22所示，将门体20关闭时门前壁22所在的平面记为第三参考平面M3。第三参考平面M3与基准平面M0相交于门体20关闭时的理论上的第一侧棱W。
门前壁22与门侧壁21所成夹角的角平分面记为角平分面H(即第四参考平面)。第三参考平面M3位于基准平面M0的所述内侧的部分，与基准平面M0位于第三参考平面M3的靠近箱体10的一侧的部分所成二面角记为第一夹角σ，且σ大致为90°。当门体20 处于关闭状态时，角平分面H平分第一夹角σ。
需要说明的是，只有当门体20处于关闭状态时，角平分面H平分第一夹角σ，而在门体20相对箱体10的打开过程中，角平分面H随着门体20相对于箱体10运动，第一夹角σ保持静止。
当门体20处于关闭状态时，第一侧棱W位于基准平面M0上，也就是说，第一侧棱W为第三参考平面M3与基准平面M0的相交线。
当门体20关闭时，定位中心轴P位于第一轨迹线S的起始定位点P 0处。起始定位点P 0与第一侧棱W之间的最短线段记为WP 0，线段WP 0与第一轨迹线S上的直线轨迹段的夹角记为θ，且0°＜θ＜90°。第一侧棱W与第一轨迹线S上的直线轨迹段所在的直线的距离为R，R为定值。
可以理解的是，通过设置起始定位点P 0与门侧壁21之间的距离，可以改变夹角θ的大小，例如，当起始定位点P 0被设置为靠近门侧壁21时，夹角θ会变大，且会趋近于90°；当起始定位点P 0被设置为远离门侧壁21时，夹角θ会减小，且会趋近于0°。
在门体20仅以第一轴421(且定位中心点P位于起始定位点P 0处)为旋转轴旋转打开的过程中，可以理解的是，当门体20旋转至线段WP 0与第二参考平面M2平行时，第一侧棱W与基准平面M0的距离D最大，且距离D的最大值Dmax＝R/sinθ-Rcotθ＝R(1/sinθ-cotθ)。在门体20由关闭状态旋转至线段WP 0与第二参考平面M2平行的过程中，门体20绕第一轴421旋转的角度为θ。
如此，通过对Dmax进行一次导数(关于θ)可得：
D’max＝R[(1/sinθ)’-cot’θ]
＝R[-cosθ/sin2θ+1/sin2θ]
＝(R/sin2θ)*(1-cosθ)。
因为θ∈(0°，90°)，所以(R/sin2θ)*(1-cosθ)＞0，也就是说，Dmax＝R/sinθ-Rcotθ＝R(1/sinθ-cotθ)为关于θ的递增函数。
如图22所示，第一轨迹线S上位于角平分面H的靠近门侧壁21一侧的任一点记为第一设置位A 1，所述直线轨迹段与角平分面H的交点记为第二设置位A 2，且所述直线轨迹段上位于角平分面H的远离门侧壁21一侧的点记为第三设置位A 3。第一设置位A 1到第一侧棱W的最短线段记为线段WA 1，且线段WA 1与所述直线轨迹段的夹角记为θ 1。第二设置位A 2到第一侧棱W的最短线段记为线段WA 2，且线段WA 2与第一轨迹线的直线轨迹段的夹角记为θ 2。第三设置位A 3到第一侧棱W的最短线段记为线段WA 3，且WA 3与第一轨迹线的直线轨迹段的夹角记为θ 3。其中，θ 1大于θ 2，且θ 2大于θ 3。
由于Dmax＝R/sinθ-Rcotθ为关于θ的递增函数，则可知，Dmax(θ 1)＞Dmax(θ 2)＞Dmax(θ 3)。
因此，当门体20关闭时，若起始定位点P 0被设置为位于第一设置位A 1处，则在门体20仅以第一轴421为旋转轴旋转打开的过程中，第一侧棱W超出基准平面M0的距离较大。
当门体20关闭时，若起始定位点P 0被设置为位于第三设置位A 3处，则在门体20仅以第一轴421为旋转轴旋转打开的过程中，第一侧棱W超出基准平面M0的距离较小。
可以理解的是，当冰箱1采用双轴铰链时，为避免门体20在开启的过程中与橱柜100发生碰撞，需要门体20在旋转的同时向所述内侧移动一定的距离。因此，将起始定位点P 0的位置设置为与门侧壁21的距离越大时，第一侧棱W在门体20旋转的过程中超过基准平面M0的最大距离Dmax就越小，从而门体20在旋转的同时需要向所述内侧移动的距离就越小。
但是，起始定位点P 0与门侧壁21的距离在设置的过大时，会使门体20开启时的流畅度和稳定性下降，因此，在一些实施例中，起始定位点P 0设置在门角平分面H上，也就是说，角平分面H大致平分第一轴421。
由上述可知，通过改变起始定位点P 0相对于角平分面H的位置，可以改变门体20在旋转打开至90°时，门体20与第一参考平面M1之间距离。
例如，若起始定位点P 0与门侧壁21的距离增大，则当门体20旋转打开至90°时，门体20与第一参考平面M1之间距离也会增大，从而可以增大门体20能够开启的最大角度。
在一些实施例中，参见图14I，当门体20打开至90°时，门前壁22与基准平面M0之间的距离记为第九距离D9。当门前壁22位于基准平面M0的所述内侧时，第九距离D9记为正数，当门前壁22位于基准平面M0的所述外侧时，第九距离D9记为负数。
在一些实施例中，如图23所示，门体20关闭时，起始定位点P 0位于第一设置位A 1处，当门体20打开至90°时，第九距离D9为0，即，门前壁22大致位于基准平面M0中。第一设置位A 1与第二设置位A 2之间的距离A 1A 2大于0，且小于等于2mm。
如此设置，一方面使得起始定位点P 0位于角平分面H附近，从而可以保障第一轴421相对门体20运动时的稳定性，另一方面，使得门体20在开启至90°时，门前壁22不超出基准平面M0，从而使门体20在嵌入橱柜100中使用时能够打开至更大角度。
在一些实施例中，如图24所示，起始定位点P 0位于角平分面H远离门侧壁21一侧的第三设置位A 3处。在此情况下，当门体20打开至90°时，第九距离D9＞0，即门前壁22位于基准平面M0的内侧。例如，第九距离D9为0.5mm至2mm之间的任一值。第二设置位A 2与第三设置位A 3之间的距离A 2A 3大于0，且小于等于2mm。
如此设置，一方面使得起始定位点P 0位于角平分面H附近，从而可以保障第一轴421相对门体20运动时的稳定性，另一方面，使得门体20在开启至90°时位于基准平面M0所述内侧，从而使门体20在嵌入橱柜100中使用时能够打开至更大角度。
在一些实施例中，在门体20的打开过程中，当第一轴421的定位中心点P移动至所述直线轨迹段的靠近门侧壁21的端部(即第二定位点P 2)时，门体20打开角度在43°至47°之间，也就是说，第二角度G 2∈[43°，47°]中的任一值。
在一些实施例中，如图25所示，当门体20处于关闭状态时，第一轴421与第一轨迹槽433远离门侧壁21的一端的端壁之间具有第三间隙μ 1，第二轴422与第二轨迹槽434的远离门侧壁21且靠近门前壁22的一端的端壁之间具有第四间隙μ 2。
可以理解的是，通过在第一轴421与第一轨迹槽433远离门侧壁21的一端的端壁之间设置第三间隙μ 1，在第二轴422与第二轨迹槽434的远离门侧壁21且靠近门前壁22的一端的端壁之间设置第四间隙μ 2，可以防止门体20在被用户以较大的力关闭时，向远离箱体10的方向弹开。
需要说明的是，门体20的靠近箱体10的一侧具有门封，门封为具有磁性的弹性体。通常情况下，当门体20关闭时，门前壁22位于第三参考平面M3中。
在一些情况下，如图26和图27所示，当门体20被较大的力推动关闭时，门体20会从关闭状态继续沿关闭方向运动至第一预设角度，并挤压门封，使得门前壁22位于第三参考平面M3的靠近箱体10的一侧，门前壁22与第三参考平面M3之间呈第二预设角度δ。
例如，0°＜第二预设角度δ≤3°，(例如，第二预设角度δ为3°、2°或1°)，也即是说，当第一轴421与第一轨迹槽433的远离门侧壁21的一端的端壁相接触时，门前壁22与第三参考平面M3的第二预设角度δ为0°至3°之间的任一值。
需要说明的是，第一轴421与第一轨迹槽433远离门侧壁21一端的端壁相接触时，第二轴422与第二轨迹槽434远离门侧壁21一端的端壁可设置为相接触，亦可设置为存在间隙。
在一些实施例中，如图27所示，第一轨迹线S还具有预留定位点P’，预留定位点P’位于起始定位点P 0的远离门侧壁21的一侧。在门体20从关闭状态沿关闭方向运动至第一预设角度的过程中，定位中心点P从起始定位点P 0移动至预留定位点P’处。
预留定位点P’与起始定位点P 0之间的轨迹段记为预留轨迹段P’P 0，且第一预留轨迹段P’P 0位于直线轨迹段所在的直线上。
在一些实施例中，如图27所示，第二轨迹线K具有预留导向点Q’，在门体20从关闭状态沿关闭方向运动至第一预设角度的过程中，导向中心点Q从起始导向点Q 0运动至预留导向点Q’处。
预留导向点Q’与起始导向点Q 0之间的轨迹段记为第二预留轨迹段Q’Q 0，且预留轨迹 段Q’Q 0与第二轨迹线K的趋势保持一致。
当门体20被较大的力推动关闭时，第一轴421先移动至起始定位点P 0且第二轴422先移动至起始导向点Q 0，然后，定位中心点P继续沿第一轨迹线S由起始定位点P 0移动至预留定位点P’，导向中心点Q由起始导向点Q 0继续运动至预留导向点Q’，此时，门体20向靠近箱体10的方向继续旋转第一预设角度G’，且0°＜G’≤δ，从而可以防止门体20在被用户以较大的力关闭时，向远离箱体10的方向弹开。
在一些实施例中，如图14H所示，当门体20打开至第七角度G 7时，定位中心点P运动至第一轨迹线S的靠近门侧壁21且靠近门前壁22的端点处，第一轴421与第一轨迹槽433的靠近门侧壁21且靠近门前壁22的一端的端壁之间具有第五间隙μ 3，此时，第二轴422运动至第二轨迹槽434的中部。如此设置，可以防止因加工制造、装配误差或轻微变形而导致第一轴421与第一轨迹槽433产生运动干涉。
本领域的技术人员将会理解，本发明的公开范围不限于上述具体实施例，并且可以在不脱离本申请的精神的情况下对实施例的某些要素进行修改和替换。本申请的范围受所附权利要求的限制。

Claims (20)

  1. 一种冰箱，包括：
    箱体；
    铰链组件，所述铰链组件包括：
    第一轨迹槽，所述第一轨迹槽的中心轨迹线为第一轨迹线，所述第一轨迹线包括直线轨迹段；
    第二轨迹槽，所述第二轨迹槽的中心轨迹线为第二轨迹线；
    第一轴，所述第一轴与所述第一轨迹槽配合，且所述第一轴的中心轴线在所述第一轨迹槽的槽底上的正投影为定位中心点；和
    第二轴，所述第二轴与所述第二轨迹槽配合，且所述第二轴的中心轴线在所述第二轨迹槽的槽底上的正投影为导向中心点；以及
    门体，所述门体通过所述铰链组件与所述箱体相连，以打开或关闭所述箱体；所述门体包括门侧壁，所述门侧壁为所述门体的靠近所述铰链组件的一侧壁；
    其中，定义所述箱体的靠近所述第铰链组件的一侧面所在的平面为基准平面，所述基准平面的靠近所述箱体的一侧为内侧；
    所述第一轴和所述第二轴相对于所述箱体固定；所述第一轨迹槽和所述第二轨迹槽相对于所述门体固定；所述直线轨迹段的一端较所述直线轨迹段的另一端更远离所述门侧壁；
    在所述门体从关闭状态经由第一角度打开至第二角度的过程中，所述导向中心点沿所述第二轨迹线运动，所述定位中心点从所述直线轨迹段的所述一端移动至所述直线轨迹段的所述另一端，以使所述门体在旋转的过程中向所述内侧移动；
    定义所述定位中心点的移动方向为第一位移方向；所述导向中心点的移动方向为第二位移方向；所述第一位移方向与所述第二位移方向之间的夹角为位移夹角；
    其中，在所述门体从所述关闭状态经由所述第一角度打开至所述第二角度的过程中，所述门体打开至任意两个角度时的位移夹角的度数的差值不大于预设角度。
  2. 根据权利要求1所述的冰箱，其中，
    当所述门体打开至第一中间角度时，所述第一位移方向与所述第二位移方向之间的位移夹角为第一位移夹角；
    当所述门体打开至第二中间角度时，所述第一位移方向与所述第二位移方向之间的位移夹角为第二位移夹角；
    所述第一位移夹角的度数与所述第二位移夹角的度数的差值不大于预设角度；
    其中，所述第一中间角度小于所述第二角度，且所述第二中间角度小于所述第二角度。
  3. 根据权利要求2所述的冰箱，其中，所述预设角度为8°。
  4. 根据权利要求1至3中任一项所述的冰箱，其中，在所述门体从所述第一角度打开至所述第二角度的过程中，所述门体打开至任意两个角度时的位移夹角的度数的差值不大于4°。
  5. 根据权利要求1至4中任一项所述的冰箱，其中，所述第二轨迹线为类椭圆弧，且所述第二轨迹线的两端点所在的直线平行于所述第二轨迹线所在的类椭圆的长轴。
  6. 根据权利要求1至5中任一项所述的冰箱，其中，所述门体还包括：
    门前壁，所述门前壁为所述门体的远离所述箱体的一侧壁；和
    侧棱，所述门前壁和所述门侧壁交汇形成所述侧棱；
    所述第二轨迹线的一端较所述第二轨迹线的另一端更靠近所述门前壁且更远离所述门侧壁；所述侧棱和所述第一轨迹线位于所述第二轨迹线的凹侧；
    在所述门体从所述关闭状态经由所述第一角度打开至所述第二角度的过程中，所述第二轴沿所述第二轨迹线向靠近所述门侧壁且远离所述门前壁的方向运动；
    所述第一角度小于所述第二角度。
  7. 根据权利要求6所述的冰箱，其中，所述第一轨迹线还包括曲线轨迹段，所述曲线轨迹段的一端连接所述直线轨迹段的所述另一端，且所述曲线轨迹段的另一端向靠近所述门侧壁且靠近所述门前壁的方向延伸；
    在所述门体由所述第二角度依次经由第三角度、第四角度、第五角度、第六角度打开 至第七角度的过程中，所述第一轴从所述曲线轨迹段的所述一端向靠近所述门侧壁且靠近所述门前壁的方向运动至所述曲线轨迹段的所述另一端；所述第二轴沿所述第二轨迹线向靠近所述门侧壁且远离所述门前壁的方向运动；
    其中，所述第二角度、所述第三角度、所述第四角度、所述第五角度、所述第六角度至所述第七角度依次增大。
  8. 根据权利要求7所述的冰箱，其中，所述第一轨迹线的所述曲线轨迹段为类圆弧。
  9. 根据权利要求7或8所述的冰箱，其中，在所述门体由所述第七角度经由第八角度打开至第九角度的过程中，所述第一轴从所述曲线轨迹段的所述另一端向远离所述门侧壁且远离所述门前壁的方向运动；所述第二轴沿所述第二轨迹线向靠近所述门侧壁且远离所述门前壁的方向运动至所述第二轨迹线的所述另一端；
    其中，所述第七角度小于所述第八角度，所述第八角度小于所述第九角度；所述第九角度大于90°且小于等于120°。
  10. 根据权利要求9所述的冰箱，其中，定义穿过所述门体的质心且与所述门前壁平行的平面为质心平面；
    在所述门体由所述关闭状态打开至所述第三角度的过程中，所述定位中心点与所述导向中心点位于所述质心平面的同一侧；
    在所述门体由所述第三角度打开至所述第四角度的过程中，所述质心平面运动至所述定位中心点与所述导向中心点之间；
    在所述门体由所述第四角度打开至所述第九角度的过程中，所述质心平面位于所述定位中心点与所述导向中心点之间。
  11. 根据权利要求10所述的冰箱，其中，定义所述定位中心点与所述导向中心点的连线为轴心线段；所述轴心线段的中点与所述质心平面之间的距离为偏移距离；
    在所述门体由所述第四角度打开至所述第九角度的过程中，所述偏移距离减小。
  12. 根据权利要求11所述的冰箱，其中，当所述门体打开至第九角度时，所述轴心线段的所述中点位于所述质心平面的靠近所述门前壁的一侧，或，所述轴心线段的所述中点位于所述质心平面的远离所述门前壁的一侧；所述偏移距离为0mm至1mm之间的任一值。
  13. 根据权利要求11或12所述的冰箱，其中，在所述门体由所述第八角度打开至所述第九角度的过程中，所述偏移距离为0mm至4mm之间的任一值。
  14. 根据权利要求1至13中任一项所述的冰箱，其中，所述门体还包括上侧壁和下侧壁；
    所述第一轨迹槽和所述第二轨迹槽形成在所述门体的所述上侧壁或所述下侧壁中的至少一者中；
    所述铰链组件还包括铰链板；所述铰链板与所述箱体固定连接；所述第一轴和所述第二轴从所述铰链板向下或向上延伸，以分别插设在所述第一轨迹槽和所述第二轨迹槽中。
  15. 根据权利要求14所述的冰箱，其中，所述门体还包括容纳槽；所述容纳槽位于所述门体的所述上侧壁或所述下侧壁中的至少一者中；
    所述铰链组件还包括安装块，所述安装块嵌设在所述容纳槽中，且与所述门体固定连接；
    其中，所述第一轨迹槽和所述第二轨迹槽形成于所述安装块中。
  16. 根据权利要求15所述的冰箱，其中，
    所述安装块还包括锁钩；
    所述铰链板还包括止挡部，所述止挡部与所述锁钩的位置相对应；
    其中，所述锁钩被配置为与所述止挡部相配合以限位所述门体，或者，与所述止挡部脱离配合以使所述门体旋转。
  17. 根据权利要求16所述的冰箱，其中，当所述门体打开至所述第一角度时，所述锁钩与所述止挡部脱离配合。
  18. 根据权利要求16所述的冰箱，其中，当所述门体打开至所述第二角度时，所述锁钩与所述止挡部脱离配合。
  19. 根据权利要求14至18中任一项所述的冰箱，其中，所述门体还包括限位部，所述限位部设置在所述门体的所述上侧壁或所述下侧壁中的至少一者中；所述限位部向上或向下凸出，且沿所述门体的宽度方向延伸；
    所述铰链板还包括限位槽；所述限位槽沿所述铰链板的厚度方向贯穿所述铰链板；
    其中，当所述门体打开至所述第九角度时，所述限位部与所述限位槽相抵以限位所述门体。
  20. 根据权利要求19所述的冰箱，其中，所述限位部包括：
    嵌装部，所述嵌装部嵌设在所述安装块与所述容纳槽的槽壁之间；和
    限位条，所述限位条连接所述嵌装部，且沿所述门体的宽度方向延伸。
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