CN115371333B

CN115371333B - Refrigerator with a refrigerator body

Info

Publication number: CN115371333B
Application number: CN202211061923.9A
Authority: CN
Inventors: 杨春; 郭动; 孙敬龙; 张向平
Original assignee: Hisense Refrigerator Co Ltd
Current assignee: Hisense Refrigerator Co Ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2023-11-24
Anticipated expiration: 2042-08-31
Also published as: CN115371333A

Abstract

The invention provides a refrigerator, which comprises a refrigerator body with a first body side wall and a second body side wall, a hinge close to the first body side wall, and a door body with a door front wall and a door side wall; the hinge is provided with a guide round block and a hinge shaft fixed with the guide round block; the end of the door body, which is close to the hinge, is provided with a guide groove for installing the guide groove; a positioning slot is arranged at the bottom of the guide slot, and the hinge shaft is matched with the positioning slot; when the door body is opened from a closed state, the guide round block moves relative to the guide groove; the hinge shaft moves relative to the positioning slot so that the door body can move outwards for a certain distance while rotating; in the projection of the plane of the top wall of the box body, the door body is opened from a closed state to G _max In the process of (2), the distance between the guide central axis I and the mass center plane F is any value of 0-7 mm; the invention effectively avoids the increase of the opening area of the refrigerator caused by the fact that one door body drives the other door body to open when the other door body is opened, thereby reducing the overflow of cold energy; and the door body can be opened stably and smoothly.

Description

Refrigerator with a refrigerator body

Technical Field

The invention relates to the technical field of household appliances, in particular to a refrigerator.

Background

In the related art, for a refrigerator having two oppositely disposed door bodies, the two oppositely disposed door bodies of the refrigerator cooperate together to open or close a pick-and-place port; in order to ensure the tightness of the door bodies when the door bodies are closed, a sealing strip is arranged on one side of any one of the two door bodies, which is close to the other door body, of the existing refrigerator; when the two door bodies are closed, the sealing strip on any one of the two door bodies is matched with the sealing strip on the other door body in a sealing way; when the two door bodies are closed, the two sealing strips are extruded in the gap between the two door bodies, so that the space between the two door bodies and the box body is effectively sealed, and the cold air is prevented from overflowing.

The hinge structure of refrigerator door body is mostly unipolar form, and when one of them door body was opened, because the sealing strip on two door bodies closely extrudeed when closing the state, can drive another door body when opening by the door body of opening, leads to getting and puts the opening area increase, has increased cold volume overflow volume, increases power consumption.

Disclosure of Invention

The present application solves at least one of the technical problems in the related art to a certain extent.

To this end, the present application is directed to a refrigerator having a hinge structure such that a door body is moved outward by a certain distance when opened.

The refrigerator according to the present application includes:

a case having a first body side wall and a second body side wall disposed opposite to each other;

the hinge is arranged on the box body and is close to the first body side wall; the hinge is provided with a guide round block and a hinge shaft fixed with the guide round block;

a door body having a door front wall distant from the case when the door body is closed, a door side wall adjacent to the hinge and connected to the door front wall;

the guide groove is arranged at the end part of the door body, which is close to the hinge; the guide round block is arranged in the guide groove and is matched with two opposite groove walls of the guide groove;

The positioning groove is arranged on the bottom of the guide groove; the hinge shaft is matched with the positioning slot;

in the process that the door body is opened from the closed state, the guide round block moves relative to the guide groove; the hinge shaft moves relative to the positioning slot, so that the door body can rotate and simultaneously move a distance in a direction away from the side wall of the second body;

the central axis of the guide round block is recorded as a guide central axis I; the door body has a centroid plane F passing through the centroid of the door body and parallel to the door front wall;

in the projection of the plane of the top wall of the box body, the door body is opened from a closed state to G _max In the process of (a), the distance between the guide central axis I and the mass center plane F is recorded as an offset distance J; wherein the offset distance J epsilon [0,7 ]]Units: mm.

In some embodiments of the present application, in the process of opening the door body from the closed state to G', in the projection of the plane of the top wall of the box body, the guiding central axis I is located at a side of the centroid plane F close to the front wall of the door; in the opening process, as the opening angle of the door body increases, the offset distance J gradually decreases, and when the door body is opened to G', the offset distance J is 0;

The door body is opened from G' to G _max In the projection of the plane of the top wall of the box, the guide central axis I is located at the side of the centroid plane F away from the front wall of the door; during this opening process, the offset distance J gradually increases as the door opening angle increases.

In some embodiments of the application, the central axis of the hinge axis is denoted as the positioning central axis P; when the door body is closed, the mass center plane F is positioned between the positioning central shaft P and the guiding central shaft I.

In some embodiments of the application, the central trajectory of the guide slot is denoted as a second trajectory K, which is perpendicular to the door front wall.

In some embodiments of the present application, the central axis of the hinge shaft is denoted as a positioning central axis P, and the central axis of the guide knob is denoted as a guide central axis I; in the projection of the top wall of the box body, the radius passing through the positioning center axis P in the circular section of the guide circular block is recorded as an axis radius IA, and the length of the line segment IP is larger than that of the line segment AP.

In some embodiments of the application, the plane passing through the guide central axis I and parallel to the first body side wall is denoted as a first reference plane M ₁ The method comprises the steps of carrying out a first treatment on the surface of the In the projection of the top wall of the box body, the axis radius IA is equal to the first reference plane M ₁ The included angle between the two is recorded as a first included angle theta; wherein the first included angle theta is any value of 25-35 degrees.

In some embodiments of the present application, in the projection of the top wall of the case, the axis radius IA is located in the first reference plane M ₁ A side far from the side wall of the first body and positioned on a plane passing through the guide central shaft I and parallel to the front wall of the door when the door body is closedNear one side of the case.

In some embodiments of the present application, the guide groove includes a first guide bar and a second guide bar arranged in parallel, the first guide bar is located at a side of the second guide bar away from the door sidewall, and the positioning groove is located between the first guide groove and the second guide bar and extends in a direction from the first guide bar to the second guide bar; the first guide strip and the second guide strip are matched with the guide round block.

In some embodiments of the present application, the center trajectory of the detent groove is denoted as a first trajectory S, and the distance from the end of the first trajectory S away from the door side wall to the door front wall is denoted as D ₀ The method comprises the steps of carrying out a first treatment on the surface of the The distance between the end of the first trajectory S near the door side wall and the door front wall is denoted as D ₁ The method comprises the steps of carrying out a first treatment on the surface of the Wherein D is ₀ ≥D ₁ 。

In some embodiments of the present application, the door body includes a door back wall disposed opposite to the door front wall, and a door seal is disposed on the door back wall; the edges of the door seal close to the side wall of the door and far from the front wall of the door are marked as side seal edges H;

the box body defines an insulated storage chamber, and the storage chamber is provided with a fetching opening which is closed or opened by the door body; the plane of the pick-and-place opening is marked as a second reference plane M ₂ The method comprises the steps of carrying out a first treatment on the surface of the The plane of the first body side wall is marked as a reference plane M ₀ The method comprises the steps of carrying out a first treatment on the surface of the The second reference plane M ₂ And the reference plane M ₀ The door body does not move along with the box body in the opening process of the door body relative to the box body, and is the reference plane which is kept stationary relative to the box body;

the door body is opened from a closed state to G ₅ During the process of (1), the side seal H always keeps away from the second reference plane M ₂ And the reference plane M ₀ Is moved in the direction of (2);

the door body is formed by G ₅ Open to maximum angle G _max In the course of (2), the side seal H is directed away from the second reference plane M ₂ And is close to the reference plane M ₀ Is moved in the direction of (2); wherein,G _max ＞G ₅ ＞90°。

compared with the prior art, the invention has the advantages and positive effects that:

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a perspective view of a refrigerator of the present invention;

fig. 2 is a top view of the refrigerator of the present invention;

FIG. 3 is a partial schematic view of the structure of FIG. 2;

fig. 4 is an exploded view of a hinge in an upper right corner of the refrigerator of the present invention;

fig. 5 is an exploded view of another view of the hinge of the upper right corner of the refrigerator of the present invention;

fig. 6 is a schematic structural view of a hinge at an upper end of a door body of the refrigerator of the present invention;

fig. 7 is a schematic view of a structure of another view of a hinge at an upper end of a door of the refrigerator of the present invention;

fig. 8 is a view at a hinge of a door body of the refrigerator of the present invention in a closed state;

fig. 9 is a view showing a door body of the refrigerator of the present invention opened to G ₁ View at the time hinge;

fig. 10 is a view showing a door body of the refrigerator of the present invention opened to G ₂ View at the time hinge;

fig. 11 is a view showing a door body of the refrigerator of the present invention opened to G ₃ View at the time hinge;

fig. 12 is a view showing a door body of the refrigerator of the present invention opened to G ₄ View at the time hinge;

fig. 13 is a view showing a door body of the refrigerator of the present invention opened to G ₅ View at the time hinge;

fig. 14 is a view showing a door body of the refrigerator of the present invention opened to G _max Views at the hinge > 90 °;

fig. 15 is a view showing a door body of the refrigerator according to the present invention opened from a closed state to a state of G _max A motion condition diagram of the guide round block relative to the guide slot and the hinge shaft relative to the positioning slot in the process of more than 90 degrees;

Fig. 16 is a view showing a door of the refrigerator of the present invention opened to G with respect to a closed state ₁ The relative position of the guide round block relative to the guide slot and the hinge shaft relative to the positioning slot is shown in the schematic diagram;

fig. 17 is a view showing a door of the refrigerator of the present invention opened to G with respect to a closed state ₂ The position relation of the guide round block relative to the guide slot and the hinge shaft relative to the positioning slot is shown in the schematic diagram;

fig. 18 is a view showing a door of the refrigerator of the present invention opened to G with respect to a closed state ₃ The position relation of the guide round block relative to the guide slot and the hinge shaft relative to the positioning slot is shown in the schematic diagram;

fig. 19 is a view showing a door of the refrigerator of the present invention opened to G with respect to a closed state ₄ The position relation of the guide round block relative to the guide slot and the hinge shaft relative to the positioning slot is shown in the schematic diagram;

fig. 20 is a view showing a door of the refrigerator of the present invention opened to G with respect to a closed state ₅ The position relation of the guide round block relative to the guide slot and the hinge shaft relative to the positioning slot is shown in the schematic diagram;

fig. 21 is a view showing a door of the refrigerator of the present invention opened to G with respect to a closed state _max The position relation of the guide round block relative to the guide slot and the hinge shaft relative to the positioning slot is shown in the schematic diagram when the angle is more than 90 degrees;

fig. 22 is a view showing a door body of the refrigerator according to the present invention opened from a closed state to a G ₃ In the process, the motion condition of the guide round block relative to the guide slot and the hinge shaft relative to the positioning slot is schematically shown;

Fig. 23 is a view showing a door body of the refrigerator according to the present invention, which is formed by G ₃ Open to G _max A motion condition diagram of the guide round block relative to the guide slot and the hinge shaft relative to the positioning slot in the process of more than 90 degrees;

FIG. 24 is a schematic view showing the fitting structure of two oppositely disposed door bodies in the closed state of the door body of the refrigerator of the present invention;

FIG. 25 is a schematic view showing the cooperation of two side seal bars in the closed state of the door body of the refrigerator of the present invention;

FIG. 26 is a schematic view showing the relative positions of two side seal bars when the door body of the refrigerator of the present invention is opened;

FIG. 27 is a view showing a door body of the refrigerator according to the present invention rotated to be opened to G ₁ When the relative position of the door body and the box body is opened to G by rotating the door body around the guiding central shaft ₁ A comparison graph of the relative positions of the box body and the box body;

FIG. 28 is a view showing a door body of the refrigerator according to the present invention being rotated to be opened to G ₂ When the relative position of the door body and the box body is opened to G by rotating the door body around the guiding central shaft ₂ A comparison graph of the relative positions of the box body and the box body;

fig. 29 is a view showing a door body of the refrigerator according to the present invention rotated to be opened to G ₃ When the relative position of the door body and the box body is opened to G by rotating the door body around the guiding central shaft ₃ A comparison graph of the relative positions of the box body and the box body;

fig. 30 is a view showing a door body of the refrigerator according to the present invention rotated to be opened to G ₄ When the relative position of the door body and the box body is opened to G by rotating the door body around the guiding central shaft ₄ A comparison graph of the relative positions of the box body and the box body;

FIG. 31 is a diagram of the present inventionDoor body of bright refrigerator is rotated and opened to G ₅ When the relative position of the door body and the box body is opened to G by rotating the door body around the guiding central shaft ₅ A comparison graph of the relative positions of the box body and the box body;

fig. 32 is a view showing a door body of the refrigerator according to the present invention rotated to be opened to G _max When the relative position of the door body and the box body is opened to G by rotating the door body around the guiding central shaft _max A comparison graph of the relative positions of the box body and the box body;

FIG. 33 is a view showing the movement of the first side edge W and the side seal edge H during the door body of the refrigerator of the present invention is rotated and opened, and the door body is rotated and opened only around the guide center axis;

fig. 34 is a schematic structural view of a hinge of the refrigerator of the present invention;

fig. 35 is an exploded view showing another structure of a hinge provided at an upper end of a door body of the refrigerator of the present invention;

FIG. 36 is an exploded view of the hinge of FIG. 35 from another perspective;

fig. 37 is an exploded structural view showing one structure of a hinge provided at a lower end of a door body of the inventive refrigerator;

FIG. 38 is a schematic view of an assembled structure of the hinge of FIG. 31 provided at the lower end of the door body;

fig. 39 is an exploded view showing another structure of a hinge provided at a lower end of a door body of the inventive refrigerator;

FIG. 40 is a schematic view of the hinge of FIG. 39 at a lower end of the door;

fig. 41 is an exploded view showing another structure of a hinge provided at a lower end of a door body of the inventive refrigerator;

FIG. 42 is a schematic view showing an assembly structure of a locking block at a lower end of a door body and the door body of the refrigerator according to the present invention;

FIG. 43 is a schematic view showing an exploded structure of a door body and a locking block at a lower end of the door body of the refrigerator according to the present invention;

fig. 44 is a schematic view of the structure of a locking block of the refrigerator of the present invention;

FIG. 45 is a schematic view showing the relative positions of the hooking portion and the stopping portion when the door of the refrigerator is closed;

FIG. 46 is a schematic view showing the relative positions of the hooking portion and the stopping portion according to another view angle when the door of the refrigerator is closed;

FIG. 47 is a schematic view showing the relative positions of the hooking portion and the stopping portion when the door body of the refrigerator is opened;

FIG. 48 is a schematic view showing the relative positions of the hooking portion and the stopping portion when the door of the refrigerator of the present invention is opened;

FIG. 49 is a schematic view showing the relative positions of the hooking portion and the stopping portion when the door body of the refrigerator is opened to 90 degrees;

FIG. 50 is a schematic view showing the relative positions of the hooking portion and the stopping portion when the door body of the refrigerator of the present invention is opened to 90 degrees;

FIG. 51 is a schematic view showing the relative positions of the hooking portion and the stopping portion when the door body of the refrigerator is opened to a maximum angle;

FIG. 52 is a schematic view showing the relative positions of the hooking portion and the stopping portion when the door body of the refrigerator is opened to the maximum angle;

fig. 53 is a schematic view showing an exploded structure of a door body and a door body of a refrigerator according to another embodiment of the present invention;

FIG. 54 is another schematic view of the mounting block of FIG. 53;

fig. 55 is a schematic view of an assembled structure of the mounting block and the door body in fig. 53.

In the above figures: a case 10; a door body 30; a door front wall 31; a door sidewall 32; a door rear wall 33; a first side edge W; a side seal edge H; a hinge plate 40; a connection portion 401; an extension 402; a door seal 2; a side seal 3; a hinge shaft 4; a guide round block 5; positioning a central axis P; guiding a central shaft I; a positioning groove 6; a first trajectory line S; start positioning point P ₀ The method comprises the steps of carrying out a first treatment on the surface of the First positioning point P ₁ The method comprises the steps of carrying out a first treatment on the surface of the Second positioning point P ₂ The method comprises the steps of carrying out a first treatment on the surface of the Third positioning site P ₃ The method comprises the steps of carrying out a first treatment on the surface of the Fourth positioning point P ₄ The method comprises the steps of carrying out a first treatment on the surface of the Fifth positioning point P ₅ The method comprises the steps of carrying out a first treatment on the surface of the Sixth positioning point P ₆ The method comprises the steps of carrying out a first treatment on the surface of the A guide groove 7; a second trajectory line K; a first guide bar 8; a second guide bar 9; first guiding endpoint K ₁ The method comprises the steps of carrying out a first treatment on the surface of the Second guiding end point K ₂ The method comprises the steps of carrying out a first treatment on the surface of the Initial guide point I ₀ First guide point I ₁ Second guide point I ₂ Third guide point I ₃ Fourth guide point I ₄ Fifth guide point I ₅ Sixth guide point I ₆ The method comprises the steps of carrying out a first treatment on the surface of the A positioning shaft 60; a first through hole 51; a second through hole 52; a first positioning hole 53; a second positioning hole 54; pit 55; a first protrusion 34; a second protrusion 35; a clearance groove 36; a receiving groove 37; a door end cap 38; a stopper 41; a hooking gap 42; a housing chamber 39; a latch hook 82; root joint 83; a hooking portion 84; a plug board 85; a clip projection 371; a groove bottom 70; a circumferential groove wall 71; a notch 72; a plate 81; a card interface 86.

Detailed Description

The present invention will be specifically described below by way of exemplary embodiments. It is to be understood that elements, structures, and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

The terms "first," "second," "third," "fourth," and "fifth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "first", "second", "third", "fourth", "fifth" may explicitly or implicitly include one or more such feature.

Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings. In the drawings, the side of the refrigerator facing the user in use is defined as the front side, and the opposite side is defined as the rear side.

FIGS. 1-33 are schematic views of a door opening process according to the present application; referring to fig. 1, the refrigerator includes a cabinet 10 having a storage compartment, a door 30 connected to the cabinet 10 to open and close the storage compartment, and a refrigerating device to supply cold air to the storage compartment. The refrigeration device is a prior art and will not be described in detail herein.

The case 10 includes a liner defining a storage chamber, a housing coupled to an outer side of the liner to form an external appearance of the refrigerator, and a heat insulating layer disposed between the liner and the housing to insulate the storage chamber. The case 10 defines a plurality of storage compartments. In this embodiment, the plurality of storage compartments includes a refrigerating compartment and a freezing compartment located below the refrigerating compartment.

The front end of the storage chamber is provided with a taking and placing opening for placing food into the storage chamber or taking out food from the storage chamber; a rotatable door 30 is provided on the case 10 to open or close the access opening of the storage compartment. Specifically, the door 30 is rotatably connected to the case 10 by a hinge at an upper portion and a hinge at a lower portion.

The case 10 includes a first body sidewall and a second body sidewall (i.e., left and right sidewalls of the case 10) disposed opposite to each other; the hinge is arranged on the box body 10 and is close to the first body side wall; the door body 30 has a door front wall 31 distant from the case 10 when the door body 30 is closed, a door side wall 32 close to the hinge and connected to the door front wall 31, and a door rear wall 33 close to the case 10 and disposed opposite to the door front wall 31. For example: when the hinge is positioned on the right side of the case 10, the right side surface of the door 30 is a door sidewall 32 when the door 30 is closed; when the hinge is located on the left side of the case 10, the left side of the door 30 is the door sidewall 32 when the door 30 is closed.

The door front wall 31 and the door side wall 32 of the door body 30 intersect to form a first side edge W. When the door front wall 31 and the door side wall 32 are both planar, the intersection line of the two planar surfaces is the theoretical first side edge W; when the door is specifically processed and arranged, a curved surface is formed based on the arrangement that the intersection of the door front wall 31 and the door side wall 32 is in a rounded transition; for convenience of description, the first side edge W is represented by a straight line extending along the length direction of the door body 30 and parallel to the theoretical first side edge W. In addition, a plane passing through the centroid of the door body 30 and parallel to the door front wall 31 is denoted as a centroid plane F; during opening of the door 30, the centroid plane F moves with the door 30. In the present embodiment, the centroid plane F is determined with the geometric center of the door body 30 as the centroid.

The door seal 2 is arranged on the door back wall 33 of the door body 30; when the door body 30 is closed, the door seal 2 is attached to the front end face of the box body surrounding the taking and placing opening, so that the door body 30 is effectively sealed and matched with the box body 10, the door seal 2 is ensured to seal the taking and placing opening, and the cold air is prevented from overflowing. In this embodiment, the door seal 2 includes a side seal close to the door side wall 32, and the edge of the door seal 2 (side seal) close to the door side wall 32 and away from the door front wall 31 is denoted as a side seal edge H.

Referring to fig. 2 to 7, the hinge has a guide knob 5, and a hinge shaft 4 fixed to the guide knob 5 and perpendicular to the guide knob 5. Wherein, the guide round block 5 is a flat plate with a circular section. The circular cross section of the guide circular block 5 includes a standard circular shape with equal radius defined mathematically, and also includes a non-standard circular shape which is formed by manufacturing or assembling errors or slight deformation, etc. and is deviated from the standard circular shape but has a circular characteristic which can be approximated to a circular shape.

The end of the door body 30 close to the hinge is provided with a guide groove 7, and the extending direction of the guide groove 7 is consistent with the direction from the door front wall 31 to the door rear wall 33; i.e. the guide groove 7 extends from the door front wall 31 to the door rear wall 33. In this embodiment, the guide groove 7 is defined by a first guide bar 8 and a second guide bar 9 arranged in parallel; a positioning groove 6 is arranged in the area between the first guide strip 8 and the second guide strip 9; i.e. the positioning groove 6 is positioned at the bottom of the guiding groove 7. The positioning groove 6 is arranged in the direction from the first guide strip 8 to the second guide strip 9. In addition, the first guide bar 8 and the second guide bar 9 each extend in a direction from the door front wall 31 toward the door rear wall 33, and the first guide bar 8 is located on a side of the second guide bar 9 away from the door side wall 32. In this embodiment, the first guide bar 8 and the second guide bar 9 are parallel to the door sidewall 32.

It should be noted that the guide groove 7 is not limited to the form defined by the first guide bar 8 and the second guide bar 9, and may be formed with a concave guide groove 7 directly at the end of the door body, the guide round block 5 being engaged with two opposite groove walls (two side walls parallel to the door side wall 32) of the guide groove 7, and the positioning groove 6 being formed on the groove bottom of the guide groove 7.

Wherein the hinge shaft 4 is adapted to the positioning slot 6, and the guide round block 5 is adapted to the guide slot 7; in this embodiment, the guide round block 5 is always in clearance fit with the opposite groove walls of the guide groove 7. The gap of the clearance fit is set in the range of 0-0.3 mm; that is, it includes a principle contact fit and also includes a minute gap existing for the reasons of product manufacturing process and the like. As a settable way, the diameter of the guide round block 5 is a, and the width of the guide groove 7 is equal to the diameter of the guide round block 5; that is, the width of the guide groove 7 (the distance between the first guide bar 8 and the second guide bar 9) is a. When the guide round block 5 moves relative to the guide groove 7, the guide round block 5 is always tangent to the first guide strip 8 and the second guide strip 9. During the rotation of the door body 30 to open or close, the hinge shaft 4 moves relative to the positioning slot 6, and the guide knob 5 moves relative to the guide slot 7.

Here, the embodiment of the present application will be described by taking the case where the hinge shaft 4 and the guide round 5 are provided in the hinge and the positioning groove 6 and the guide groove 7 are provided in the door body 30 as an example.

The hinge includes a hinge plate 40 fixedly connected with the case 10, the hinge plate 40 including: a connection portion 401 connected to the case 10, and a plate-like extension portion 402 extending forward from the connection portion 401 and having a horizontal plane. The connection portion 401 may be fastened to the top wall of the case 10 by fasteners such as screws, pins, and bolts.

Specifically, the hinge at the upper end of the door 30 includes a hinge plate 40 coupled to the top wall of the housing 10, and the hinge shaft 4 and the guide knob 5 are positioned on the hinge plate 40. Wherein the hinge plate 40, the hinge shaft 4 and the guide knob 5 may be integrally formed; but, unlike this, the hinge plate 41, the hinge shaft 4 and the guide knob 5 may be separately provided and assembled with each other. Wherein a hinge shaft 4 and a guide knob 5 are formed on the extension 402, the hinge shaft 4 extending vertically downward.

In the hinge at the lower end of the door 30, the connection portion 401 is connected to the front end surface of the case 10, and the extension portion 402 extends to a side away from the front end surface of the case 10. The hinge shaft 4 and the guide knob 5 are on the extension 402, and the hinge shaft 4 extends upward.

The door body 30 is provided at both upper and lower ends thereof with a positioning groove 6 and a guide groove 7 corresponding to the position of the hinge plate 40. And the two positioning grooves 6 at the upper end and the lower end of the door body 30 correspond to each other in the vertical direction, and the two guiding grooves 7 correspond to each other in the vertical direction. So that the hinge provided at the upper end of the door body 30 moves in synchronization with the hinge provided at the lower end of the door body 30.

In the present embodiment, as shown in fig. 2 to 7, referring to fig. 8, a plane on the side (first body side wall) of the case 10 near the hinge plate 40 is defined as a reference plane M ₀ Reference plane M ₀ The side far from the inner cavity of the storage chamber is marked as the outer side, and the opposite side near the storage chamber is marked as the inner side.

The refrigerator comprises two oppositely arranged door bodies 30, and the two oppositely arranged door bodies 30 are matched together to open or close the taking and placing opening. One side of any one of the two door bodies 30, which is far away from the door side wall 32 thereof, is provided with a side sealing strip 3; when the two door bodies 30 are closed, the side sealing strip 3 on any one of the two door bodies 30 is in sealing fit with the side sealing strip 3 on the other door body; that is, when the two door bodies 30 are closed, the two side sealing strips 3 are pressed in the gap between the two door bodies 30 to effectively close the space between the two door bodies 30 and the box body, thereby preventing the cool air from overflowing. When the refrigerator is provided with the traditional hinge (hinge which is simply rotated to open), when one door body 30 is opened, as the two side sealing strips 3 at the two sides are tightly extruded when in a closed state, the opened door body 30 can drive the other door body 30 to be opened when being opened, so that the opening area of a taking and placing opening is increased, the cold quantity overflow quantity is increased, and the power consumption is increased; and the temperature in the storage chamber is high, which affects the fresh-keeping of food. Therefore, the hinge and the door body 30 cooperate to form a track-changing mechanism, so that the opened door body 30 moves outwards in the opening process, and the door body 30 is prevented from being driven to be opened by the hinge.

In this embodiment, the positioning slot 6 is a curved slot; the distance between the positioning groove 6 and the door front wall 31 increases and decreases from one end far from the door side wall 32 to the direction close to the door side wall 32 on the door body 30. In this embodiment, the positioning groove 6 is a smooth curve. As shown in fig. 3, in the projection of the top wall of the case 10, the projection line of the front wall 31 of the door is denoted as x-axis, the projection line of the inner wall of the guide groove 8 (the first guide bar 8) away from the side wall 32 of the door is denoted as y-axis, and the intersection point of the x-axis and the y-axis is denoted as origin O (0, 0); wherein the direction of the x-axis pointing from the first guide bar 8 to the second guide bar 9 is positive; the y-axis is forward from the door front wall 31 to the door rear wall 33.

The center trajectory of the positioning groove 6 is denoted as a first trajectory S; the central first trajectory S is noted in this coordinate system as a function f (x), f (x) being located in the first quadrant of the xOy coordinate system; as a configurable way, as x increases, f (x) increases and then decreases. I.e. f (x) has only one extreme point. In this embodiment, f (x) is an upward convex function.

As an alternative, the positioning slot 6 comprises a first slot section remote from the door side wall 32 and a second slot section close to the door side wall 32; wherein, the distance between the first slot section and the door front wall 31 increases gradually and the distance between the second slot section and the door front wall 31 decreases gradually along the direction from one end far from the door side wall 32 to the direction close to the door side wall 32 on the door body 30. The first groove section and the second groove section are connected through smooth transition. The central track lines corresponding to the first groove section and the second groove section are sequentially marked as a first track section and a second track section; the first track section and the second track section are connected in a smooth transition mode to form a first track line S.

The first groove section and the second groove section are arc grooves. That is, the first track section and the second track section are both arc-shaped. As a settable way, the first track section and the second track section are tangent; i.e. the first groove section is tangential to the second groove section to form a smooth detent 6.

As another settable way, a transition groove section is provided to connect the first groove section and the second groove section; the first groove section, the transition groove section and the second groove section are in smooth transition connection; the central track line of the transition groove section is marked as a transition track section; the first track section, the transition track section and the second track section are tangent; that is, the first groove section and the second groove section are both tangent to the transition groove section to form a smooth detent 6.

The first trajectory S is curved, defined by the shape of the positioning slot 6 being a curved slot. Wherein the first track line S extends from one side far from the door side wall 32 to one side close to the door side wall 32, and the distance between the first track line S and the door front wall 31 increases and then decreases; in addition, in the present embodiment, the guide groove 7 is linear; that is, the guide groove 7 is constituted by a length of linear groove. Wherein the center line of the extending direction of the guide groove 7 is denoted as a second trajectory line K; since the guide groove 7 is always tangential to the guide knob 5, the guide central axis I of the guide knob 5 always moves along the second trajectory line K. The expressions in this embodiment are all standard theoretical settings, and include structural settings that deviate from the standard theoretical settings due to manufacturing or assembly errors, slight deformation, or the like, but still have such characteristics.

In this embodiment, the hinge shaft 4 is matched with the positioning slot 6, and the guide round block 5 is matched with the guide slot 7, so that the door body 30 can move a distance to the outside (far away from the direction of the side wall of the second body) while rotating, so as to avoid mutual interference of the side sealing strips 3 arranged on the two opposite door bodies 30 when the door bodies 30 are opened, and effectively avoid that only one of the two door bodies 30 is opened to drive the other door body 30 to increase the cooling capacity loss. As another arrangement, the door 30 moves forward (in a direction away from the case) a certain distance while opening and moving outward, so as to avoid the door seal 2 being pressed when the door 30 is opened, and prevent the door 30 and the case 10 from interfering with each other to affect the opening of the door 30.

Because of the relative movement relationship between the positioning slot 6 and the hinge shaft 4, and between the guide slot 7 and the guide round block 5, if the door body 30 uses the positioning slot 6 and the guide slot 7 as stationary references in the opening process, the movement of the hinge shaft 4 in the positioning slot 6 corresponds to the movement of the guide round block 5 in the guide slot 7. For convenience of description, the present application uses the positioning slot 6 and the guide slot 7 which are fixed in relative positions as reference objects, and the manner in which the hinge shaft 4 and the guide round block 5 move relative to the reference objects is described.

In addition, in the present embodiment, the central axis of the hinge shaft 4 is denoted as a positioning central axis P, and the central axis of the guide round block 5 passing through the center of the cross section thereof is denoted as a guide central axis I; the radius of the circular section of the guide circular block 5 passing through the positioning center axis P is marked as IA; wherein A is the intersection point of the boundary of the circular section of the guide circular block 5 and the radius of the cross section over positioning center axis P of the guide circular block 5. I.e. I, P, A are collinear and on the circular cross-section radius IA of the guide knob 5. In the present embodiment, in the projection of the top wall of the box 10, the length of the line segment IP is greater than the length of the line segment AP, so as to effectively increase the limiting effect of the hinge shaft 4 and the limiting round block 5 on the door 30, and increase the connection stability of the door 30 and the box 10; the line segment IP is denoted as an axial line segment IP, the radius IA is denoted as an axial radius IA, and a is denoted as an axial radius point a. As a configurable way, the IP/AP is any one of 2 to 3.

As an embodiment, the guide center axis I is penetrated and is connected with the reference plane M ₀ The parallel planes are denoted as first reference plane M ₁ The method comprises the steps of carrying out a first treatment on the surface of the In the projection of the top wall of the case 10, the axial radius IA is located in the first reference plane M ₁ Away from the reference plane M ₀ And is located on a side of the case 10 near a plane passing through the guide center axis I and parallel to the door front wall 31 when the door is closed; i.e. from I to A, IA and a first reference plane M ₁ The distance between them increases monotonically and linearly. In this embodiment, the positioning center axis P is located at one side of the guiding center axis I near the picking and placing opening, which increases the limiting effect of the hinge axis 4 and the limiting round block 5 on the door body 30, and increases the connection stability of the door body 30 and the box body 10. In addition, in the present embodiment, the positioning center axis P is located on a side of the guiding center axis I, which is close to the pick-and-place opening and is far from the first body sidewall. The arrangement effectively increases the outward moving angle range of the door body 30 in the rotating process, so that the door body 30 can keep the outward moving trend in a large angle range in the rotating process, on one hand, the mutual interference of the side sealing strips 3 arranged on two opposite door bodies 30 can be avoided, and the cold energy loss is reduced; on the other hand, the lateral shielding of the door seal 2 provided on the door rear wall 33 to the access opening can be reduced, so that the lateral size of the drawer installed in the storage chamber can be increased, and the space utilization rate of the storage chamber can be increased; in addition, the hinge shaft 4 matched with the positioning slot 6 is positioned at one side of the guide central shaft I close to the picking and placing opening and far from the side wall of the first body, and the hinge shaft 4 is matched with the guide round block 5 so as to strengthen the doorThe body 30 is close to integrative connection fastness of box 10, has effectively strengthened the connection steadiness of door body, has also increased the stability that door body 30 opened, reduces and rocks, improves user's use and experiences the sense.

In some embodiments of the present application, the axial radius IA is in projection with the first reference plane M on the top wall of the case 10 ₁ The included angle is marked as a first included angle theta, and the first included angle theta is any value of 25-35 degrees; it may be provided that, in this embodiment, θ=30°.

In some embodiments of the application, the radius of the hinge axis 4 is denoted R and the radius of the guide knob 5 is denoted R; wherein R/R is any one of 0.7 to 0.8; the arrangement of the radius makes reasonable use of the thickness space of the door body 30 in one direction to arrange the positioning groove 6 and the guide groove so as to realize the aim of opening the door body 30 to the maximum angle; on the other hand, the strength of the hinge shaft 4 and the guide round block 5 is ensured; in addition, the hinge shaft 4 is matched with the positioning groove 6, and the guide round block 5 is matched with the guide groove 7, so that the stability of opening the door body 30 is improved.

As shown in fig. 8-23, the movement of the hinge shaft 4 along the positioning slot 6 is equivalent to the movement of the positioning center axis P along the first trajectory S. In this embodiment, the hinge plate 40 is fixedly connected to the guide block 5, and the movement of the guide block 5 relative to the guide groove 7 is equivalent to the movement of the hinge plate 40 relative to the guide groove 7 and also equivalent to the movement of the case 10 relative to the door 30. Wherein the movement of the door 30 relative to the box 10 is equivalent to the relative movement of the two in the plane of the top wall of the box 10 (or in the plane parallel to the top wall of the box 10); i.e., the movement of the door 30 relative to the housing 10, can be attributed to relative movement in a two-dimensional plane. In the plane of the top wall of the box 10, the movement of the axis line segment IP relative to the guide groove 7 is equivalent to the movement of the axis line segment IP relative to the second track line K, which is also equivalent to the movement of the guide block 5 relative to the guide groove 7, and is also equivalent to the movement of the box 10 relative to the door 30.

In the following description, for convenience of explanation, the movement of the positioning center axis P along the first trajectory S is selected to represent the movement of the hinge shaft 4 along the positioning slot 6, and the movement of the axis line IP relative to the second trajectory K represents the movement of the guide knob 5 relative to the guide slot 7; namely, the first axis line segment IP is opposite to the second axis line segment IPThe movement of the second trajectory line K represents the movement of the case 10 (hinge plate 30) with respect to the door 30. Wherein the second trajectory K comprises a first guiding endpoint K near the door front wall 31 ₁ A second guiding end point K close to the door rear wall 33 ₂ The method comprises the steps of carrying out a first treatment on the surface of the The second track line K is formed by the first guiding end point K ₁ Extends along a straight line to a second guiding endpoint K ₂ . In some embodiments of the present application, the second trajectory line K is perpendicular to the door front wall 31 so as to increase the efficiency of the outward and forward movement of the door 30 with respect to the case 10.

As shown in fig. 8-23, the first trajectory S includes a start setpoint P that is remote from the door sidewall 32 ₀ And a sixth positioning point P close to the door sidewall 32 ₆ The method comprises the steps of carrying out a first treatment on the surface of the The first track line S is formed by a start positioning point P ₀ Extends along a curve to a side close to the door side wall 32 to a sixth positioning point P ₆ And the distance of the first trajectory S from the door front wall 31 increases and then decreases.

In this embodiment, the first trajectory S is closer to the door rear wall 33 than to the door front wall 31. When the user opens the door body 30, an external force applied to the door body 30 mainly acts on one side of the door body 30 close to the door front wall 31 and away from the door side wall 32. In this embodiment, with respect to the door front wall 31, the positioning slot 6 is close to the door rear wall 33, so that the hinge shaft 4 is located at a position close to the door rear wall 33 and close to the door side wall 32 when the door body 30 is opened, so that the force balance is effectively improved, the mechanical stability of opening the door body 30 is good, and the movement smoothness and stability of the door body 30 can be ensured; while also ensuring the strength of the door body 30 and the positioning groove 6. In the present embodiment, the anchor point P is initiated ₀ The distance from the door front wall 31 is denoted as D ₀ Sixth positioning point P ₆ The distance from the door front wall 31 is denoted as D ₁ Sixth positioning point P ₆ The distance between the door rear wall 33 is denoted as D ₂ . Wherein D is ₀ ≥D ₁ ＞D ₂ The method comprises the steps of carrying out a first treatment on the surface of the I.e. settable, D ₂ ：D ₁ E [1/2, 1). The above arrangement can make the force more balanced and match the use habit of the user, enhancing the stability and fluency of the opening of the door body 30. It is possible to provide that, in projection of the top wall of the cabinet 10, the intermediate plane between the door front wall 31 and the door rear wall 33 is denoted as the intermediate plane (in this embodiment, the middleThe plane being the same plane as the centroid plane F), the intermediate plane being at a distance from the door front wall 31 equal to its distance from the door rear wall 33; the positioning slot 6 is located in the area between the middle plane and the door rear wall 33. In this embodiment, 14 mm.ltoreq.D ₂ 18mm, in the present example, set D ₂ ＝16mm，D ₁ =32 mm. The thickness of the door body 30 is 45 mm-55 mm.

In this embodiment, the positioning groove 6 is curved and protrudes toward the door rear wall 33; the center line (second trajectory line K) of the guide groove 7 in the extending direction thereof is parallel to the door side wall 32 to generate a remarkable displacement in the inside and outside directions (transverse/refrigerator width directions) when the hinge shaft 4 moves the guide knob 5 relative to the positioning groove, so that the door body 30 is moved outwardly. Specifically, the door front wall 31 and the door side wall 32 are perpendicular to each other in the present embodiment; both the first guide strip 8 and the second guide strip 9 are perpendicular to the door front wall 31, i.e. the second trajectory line K is perpendicular to the door front wall 31. In this embodiment, the second trajectory K is perpendicular to the door front wall 31 and parallel to the door side wall 32. The first track line S is formed by a start positioning point P ₀ Extending along a curve protruding towards the door rear wall 33 to a sixth setpoint P ₆ . The thickness of the door body 30 is effectively utilized, so that on one hand, the guide round block 5 rotates and moves smoothly relative to the guide groove 7, and on the other hand, the door body 30 moves outwards and forwards for a certain distance in the rotating and opening process.

The above positioning groove 6 effectively limits the movement of the hinge shaft 4, and the guide groove 7 effectively limits the movement of the guide knob 5 so that the guide knob 5 moves in the guide groove 7 in cooperation with the hinge shaft 4, thereby moving the door body 30 to the outside and forward a certain distance during the opening of the door body 30 and ensuring the stability and fluency of the rotational opening of the door body 30.

In some embodiments of the application, the two end points of the positioning slot 6 are located near the centroid plane F; the distance between the two endpoints of the positioning groove 6 and the centroid plane F is smaller than 1cm; so that the door body 30 is effectively supported in a closed state and a state of being opened to a maximum angle, and the stability of the door body 30 maintaining the state is improved.

As shown in FIG. 8, in some embodiments of the application, the center axis is positioned at P-position when the door 30 is in the closed stateAt the initial positioning point P of the first track line S ₀ The guide knob 5 cooperates with both the first guide strip 8 and the second guide strip 9. It should be noted that, in the whole process of opening the door body 30, the guide round block 5 is always matched with the first guide strip 8 and the second guide strip 9 at the same time; in the projection of the plane of the top wall of the box 10,

In the present embodiment, the maximum angle G at which the refrigerator is opened _max The illustration is > 90 deg.. The door 30 is opened from the closed state to the maximum angle G _max In the process, when the door body 30 is rotated and opened to a specific angle, the position of the hinge shaft 4 relative to the positioning slot 6 and the position of the guide round block 5 relative to the guide slot 7 are specifically as follows:

wherein,indicating the opening angle of the door body 30, the opening angle of the door body 30 in the closed state>

As shown in figure 8 of the drawings,when the door body 30 is in a closed state; the positioning center axis P is located at a starting positioning point P of the first trajectory S away from the door sidewall 32 ₀ The guide knob 5 cooperates with both the first guide strip 8 and the second guide strip 9. In connection with figure 16 of the drawings,in the process, the guiding central shaft I, the positioning central point P and the axle center radius point A of the guiding round block 5 are sequentially positioned in the guiding groove 7 ₀ 、P ₀ 、A ₀ Where it is located. Wherein I is ₀ On the second trajectory line K.

As shown in figures 9-11 of the drawings,when the door 30 is rotated from the closed state to G ₃ (excluding endpoint values); in the opening process, the guideThe round block 5 is matched with the first guide strip 8 and the second guide strip 9 at the same time; the positioning center axis P gradually approaches the door rear wall 33 and the door side wall 32 along the first trajectory line S.

The door body 30 is opened by the above angleWhen the angle range is opened, the matching relation state of the guide round block 5 and the guide groove 7 in the angle range is the same, and the first guide strip 8 and the second guide strip 9 are all matched with the guide round block 5 all the time; the movement trend of the positioning center axis P with respect to the first trajectory line S is the same. The difference is that: the opening angle is different, the point at which the guide round block 5 is matched with the guide groove 7 is different, and the position of the positioning central axis P relative to the first track line S is different. Thus, the opening angle +. > When the door body 30 is opened to the corresponding section, any one of the opening angles can represent the relative positions of the guide round block 5 and the guide slot 7, and the hinge shaft 4 and the positioning slot 6; specifically, as shown in FIG. 9, +.>A state diagram at that time; as shown in figure 10 of the drawings,a state diagram at that time; wherein 0 DEG < G ₁ ＜G ₂ ＜G ₃ ；/>Or G ₂ Can represent the fit state in the interval.

As shown in fig. 9, the door 30 opens G ₁ When the positioning center axis P is located at the first positioning point P of the first track line S ₁ First positioning point P ₁ Located at the initial positioning point P ₀ A side close to the door side wall 32 and away from the door front wall 31; with reference to figure 16 of the drawings,in the process, the guiding central shaft I, the positioning central point P and the axle center radius point A of the guiding round block 5 are sequentially positioned in the guiding groove 7 ₁ 、P ₁ 、A ₁ Where it is located. Wherein I is ₁ On the second track line K and at I ₀ A side remote from the door front wall 31; i.e. I ₁ At I ₀ Near K ₂ Is provided.

As shown in fig. 10, the door 30 opens G ₂ When the positioning center axis P is located at the second positioning point P of the first track line S ₂ Second positioning point P ₂ Located at a first positioning point P ₁ A side close to the door side wall 32 and away from the door front wall 31; with reference to figure 17 of the drawings,in the process, the guiding central shaft I, the positioning central point P and the axle center radius point A of the guiding round block 5 are sequentially positioned in the guiding groove 7 ₂ 、P ₂ 、A ₂ Where it is located. Wherein I is ₂ On the second track line K and at I ₁ A side remote from the door front wall 31; i.e. I ₂ At I ₁ Near K ₂ Is provided.

As shown in the figure 11 of the drawings,when the door body 30 is opened to G ₃ The method comprises the steps of carrying out a first treatment on the surface of the The positioning center axis P is located at a third positioning point P of the first track line S ₃ Third positioning point P ₃ At a second positioning point P ₂ A side close to the door side wall 32 and away from the door front wall 31; the guide knob 5 cooperates with both the first guide strip 8 and the second guide strip 9. In the present embodiment, the third positioning point P ₃ Is the point where the first trajectory S is the smallest distance from the gate back wall 33. I.e. in the xOy coordinate system, a third positioning point P ₃ Is the extreme point of f (x). In connection with FIG. 18->In this case, the guide center axis I and the positioning center of the guide round block 5The point P and the axis radius point A are sequentially positioned in I of the guide groove 7 ₃ 、P ₃ 、A ₃ Where it is located. Wherein I is ₃ On the second track line K and at I ₂ A side remote from the door front wall 31; i.e. I ₃ At I ₂ Near K ₂ Is provided. In connection with FIG. 15, wherein I ₀ 、I ₁ 、I ₂ 、I ₃ Are located on the second trajectory line K and are arranged in sequence in the direction from the door front wall 31 toward the door rear wall 33. In this embodiment, as shown in FIG. 11, G ₃ ∈[48°，52°]Any one of which; that is, when the door body 30 is opened to around 50 °, the positioning center point P moves to the third positioning point P where the first trajectory line S is closest to the door rear wall 33 ₃ Where it is located.

As shown in figures 11-12 of the drawings,when the door body 30 is formed by G ₃ Rotate and open to G ₄ Is a process of (1); in the opening process, the guide round block 5 is matched with the first guide strip 8 and the second guide strip 9 at the same time; the positioning center axis P moves along the first trajectory S in a direction approaching the door side wall 32 and the door front wall 31.

The door body 30 is opened by the above angleWhen the angle range is opened, the matching relation between the guide round block 5 and the guide groove 7 is the same, and the first guide strip 8 and the second guide strip 9 are all matched with the guide round block 5 all the time; the movement trend of the positioning center axis P with respect to the first trajectory line S is the same. The difference is that: the opening angle is different, the point at which the guide round block 5 is matched with the guide groove 7 is different, and the position of the positioning central shaft relative to the first track line S is different. Thus, the opening angle +.> In this case, any one of the opening angles may represent a guide when the door 30 is opened to the corresponding sectionThe relative positions of the round block 5 and the guide slot 7, and the hinge shaft 4 and the positioning slot 6; specifically, as shown in FIG. 12, +.>State diagram at that time.

Door 30 opens G ₄ When the positioning center axis P is located at the fourth positioning point P of the first track line S ₄ Fourth positioning point P ₄ At the third positioning point P ₃ With a sixth positioning point P ₆ Between, and fourth positioning point P ₄ At the third positioning point P ₃ One side close to the door side wall 32 and the door front wall 31; in connection with figure 19 of the drawings,in the process, the guiding central shaft I, the positioning central point P and the axle center radius point A of the guiding round block 5 are sequentially positioned in the guiding groove 7 ₄ 、P ₄ 、A ₄ Where it is located. Wherein I is ₄ On the second track line K and at I ₃ A side remote from the door front wall 31; i.e. I ₄ At I ₃ Near K ₂ Is provided. As an embodiment, G ₄ ＝90°；

As shown in figures 12-14 of the drawings,when the door body 30 is formed by G ₄ (G ₄ Rotate open to G =90° _max A process of > 90 °; in the opening process, the guide round block 5 is matched with the first guide strip 8 and the second guide strip 9 at the same time; the positioning center axis P moves along the first trajectory S in a direction approaching the door side wall 32 and the door front wall 31.

As shown in fig. 12 to 14, the door body 30 is opened at an angleWhen the angle range is opened, the matching relation between the guide round block 5 and the guide groove 7 is the same, and the first guide strip 8 and the second guide strip 9 are all matched with the guide round block 5 all the time; the movement trend of the positioning center axis P with respect to the first trajectory line S is the same. The difference is that: the opening angle is different, the point at which the guide round block 5 is matched with the guide groove 7 is different, and the position of the positioning central shaft relative to the first track line S is different. Thus, the opening angle satisfies (G ₄ ，G _max ) In this case, any one of the opening angles may represent that the door 30 is opened to the corresponding section (G ₄ ，G _max ) The relative positions of the guide round block 5 and the guide slot 7, and the hinge shaft 4 and the positioning slot 6; in particular, as shown in FIG. 13,state diagram of->May represent the fit state within the interval.

As shown in fig. 13, the door 30 opens G ₅ Time (G) _max ＞G ₅ ＞G ₄ =90°), the positioning center axis P is located at a fifth positioning point P of the first trajectory S ₅ Fifth positioning point P ₅ At a fourth positioning point P ₄ Near one side of the door front wall 31 and door side wall 32. In connection with figure 20 of the drawings,in the process, the guiding central shaft I, the positioning central point P and the axle center radius point A of the guiding round block 5 are sequentially positioned in the guiding groove 7 ₅ 、P ₅ 、A ₅ Where it is located. Wherein I is ₅ On the second track line K and at I ₄ A side remote from the door front wall 31; i.e. I ₅ At I ₄ Near K ₂ Is provided. Settable, G ₅ ∈[100°，105°]。

As shown in fig. 14, the door 30 opens G _max Time (G) _max > 90 deg.), the positioning center axis P is located at a sixth positioning point P of the first trajectory S ₆ Sixth positioning point P ₆ Located at a fifth positioning point P ₅ Away from the sixth positioning point P ₆ One side; at this time, the hinge shaft 4 is positioned at the end of the positioning groove near the door sidewall 32, i.e., the positioning center axis P is positioned at the end point of the first trajectory line S near the door sidewall 32. In connection with figure 21 of the drawings,in the process, the guiding central shaft I, the positioning central point P and the axle center radius point A of the guiding round block 5 are sequentially positioned in the guiding groove 7 ₆ 、P ₆ 、A ₆ Where it is located. Wherein I is ₆ On the second track line K and at I ₅ A side remote from the door front wall 31; i.e. I ₆ At I ₅ Near K ₂ Is provided. As a settable way, G _max ∈[112°，120°]. In this embodiment, <' > a->

Wherein 0 DEG < G ₁ ＜G ₂ ＜G ₃ ＜G ₄ ＜G ₅ ＜G _max The method comprises the steps of carrying out a first treatment on the surface of the Start positioning point P ₀ First positioning point P ₁ Second positioning point P ₂ Third positioning site P ₃ Fourth positioning point P ₄ Fifth positioning point P ₅ Sixth positioning point P ₆ Which in turn are distributed along a first trajectory S in a direction approaching the door sidewall 32. In this embodiment, the opening angles of the door body 30 are sequentially recorded as a first angle G ₁ Second angle G ₂ Third angle G ₃ Fourth angle G ₄ Fifth angle G ₅ Maximum angle G _max 。

The door 30 is opened from the closed state to the maximum angle G _max In the process, the hinge shaft 4 moves toward the door side wall 32 relative to the positioning slot 6, and the guide knob 5 moves away from the door front wall 31 relative to the guide slot 7.

As can be seen from the above, the opposite groove walls of the guide groove 7 are matched with the guide round block 5 during the whole process of opening the door body 30. From the movement trend angle of the hinge shaft 4 relative to the positioning slot 6,the hinge axis 4 is located at the end of the detent 6 remote from the door side wall 32; />When this occurs, the hinge shaft 4 moves to a position where the positioning slot 6 is closest to the door rear wall 33. / >When the hinge shaft 4 moves to the end of the positioning slot 6 near the door sidewall 32. I.e. from the point of view of the movement trend of the hinge axis 4 relative to the positioning slot 6 +>Opening the door body 30 from the closed state to G _max Divided into two phases. The two stages are described below from the perspective of the movement trend of the hinge shaft 4 relative to the positioning slot 6:

in a first stage, referring to fig. 16-18, as shown in fig. 22, the door 30 is rotated from a closed state to a closed state ₃ Process of (< 90 °).

In this first stage, the door 30 passes through G sequentially from 0 DEG ₁ 、G ₂ Open to G ₃ . In the process, the positioning center axis P is defined by the initial positioning point P ₀ Moving along the first trajectory S in a direction approaching the door side wall 32 and the door rear wall 33; specifically, the positioning center axis P is defined by the initial positioning point P ₀ Sequentially passing through the first positioning point P along the first track line S ₁ Second positioning point P ₂ To a third positioning point P in a direction approaching the door side wall 32 and the door rear wall 33 ₃ The method comprises the steps of carrying out a first treatment on the surface of the The guiding central axis I of the guiding round block 5 is opposite to the guiding groove 7 from the initial guiding point I ₀ Along the second trajectory line K towards and near the second guiding end point K ₂ (approaching the door back wall 33); specifically, the guiding central axis I is defined by the initial guiding point I ₀ Along the second trajectory line K through the first guide point I ₁ Second guide point I ₂ To move closer to the door rear wall 33 to the third guide point I ₃ 。

In the application, the side facing the user when the refrigerator is used is defined as the front side, and the opposite side is defined as the rear side; reference plane M ₀ The side far from the inner cavity of the storage chamber is marked as the outer side, and the opposite side close to the storage chamber is marked as the inner side; the description will be made with reference to the definition of the direction conforming to the use of the user.

Above theDuring the first stage of opening the door 30 (0 ° to G) ₃ ) The second trajectory line K is parallel to the door side wall 32 and rotates counterclockwise during the opening of the first stage during the counterclockwise rotation of the door 30 relative to the cabinet 10. During this first phase, the second trajectory K is defined by a reference plane M ₀ The parallel state starts to rotate anticlockwise, the included angle between the second track line K and the plane of the pick-and-place port is gradually reduced, and the included angle is between the second track line K and the reference plane M ₀ The included angle between the two parts is gradually increased; i.e. during this first phase of opening, the second trajectory line K extends, with respect to the box 10, in a direction directed from the door rear wall 33 towards the door front wall 31, towards the side remote from the second body side wall and from the access opening. I.e. in the direction from the door rear wall 33 to the door front wall 31 during this first stage of opening (from the second guiding end point K ₂ Pointing to the first guiding end point K ₁ The direction of (2) the second trajectory line K always extends outwards and forwards. Namely, the door body 30 is opened from the closed state to G ₃ Along the path from the first guiding end point K ₁ Pointing to the second guiding end point K ₂ The second trajectory line K extends inwardly and rearwardly.

In the opening process of the first stage, the door body 30 is opened from 0 DEG to G by taking the positioning groove 6 and the guide groove 7 as reference objects ₃ When the axis line segment IP is defined by I ₀ P ₀ Clockwise and inwardly and backwardly sequentially move to I ₁ P ₁ 、I ₂ P ₂ 、I ₃ P ₃ Department (I) ₀ P ₀ →I ₁ P ₁ →I ₂ P ₂ →I ₃ P ₃ ). Since the positioning groove 6 and the guide groove 7 are arranged on the door body 30, the axis line segment IP represents the movement of the guide round block 5 arranged on the box body 10; the following is obtained: taking the door body 30 as a reference, the door body 30 is opened from a closed state to G ₃ Throughout the process, the housing 10 (i.e., the guide knob 5) remains rotated clockwise relative to the door 30 and toward and along the second trajectory line K toward the second guide endpoint K ₂ Is moved in the direction of (2); i.e., the case 10 maintains a clockwise and inward rearward movement tendency with respect to the door 30.

Based on the relativity of the movement, the case 10 is used as a reference (i.e.With the guide round 5 as a reference object), the door body 30 is opened from the closed state to G ₃ Throughout the process, the door 30 (i.e., the positioning groove 6 and the guide groove 7) rotates counterclockwise relative to the case 10 and approaches the first guide end point K ₁ Is moved in the direction of (2); i.e., the door 30 maintains a tendency to rotate counterclockwise and move forward outward with respect to the cabinet 10. I.e. the door 30 is opened from the closed state to G ₃ In the whole process, the door body 30 moves outwards and forwards for a certain distance relative to the box body 10, so that the phenomenon that the opened door body 30 drives the other door body 30 to be opened to cause cold energy loss is avoided.

In the second stage, as shown in FIG. 23, the door 30 is formed by G ₃ Rotate and open to G _max (G _max In the process > 90 deg.).

In this second stage, the door 30 is defined by G ₃ Sequentially pass through G ₄ 、G ₅ Open to G _max . In the process, the positioning center axis P is defined by the third positioning point P ₃ Moving along the first trajectory S in a direction approaching the door side wall 32 and the door front wall 31. Specifically, the positioning center axis P is defined by a third positioning point P ₃ Sequentially passes through the fourth positioning point P along the first track line S in a direction approaching the door side wall and the door front wall 31 ₄ Fifth positioning point P ₅ Move to the sixth positioning point P ₆ 。

During the second stage of opening, when the door 30 is opened by G ₃ Rotate and open to G ₄ (G ₄ In the process before =90°, the movement trend of the second trajectory line K is consistent with the movement trend in the first stage (not described here). Namely, the door body 30 is formed by G ₃ Rotate and open to G ₄ (G ₄ In the process before =90°, the second guiding end point K is located opposite to the case 10 ₂ Pointing to the first guiding end point K ₁ The second trajectory K always extends outwards and forwards. Namely, the door body 30 is opened from the closed state to G ₃ Along the path from the first guiding end point K ₁ Pointing to the second guiding end point K ₂ The second trajectory line K extends inwardly and rearwardly.

When the door 30 is opened to 90 °, the second track line K is parallel to the plane of the access opening and the reference plane M ₀ Is vertical to each other; that is, the first guide end point K is located along the direction opposite to the box 10 ₁ Pointing to the second guiding end point K ₂ The second trajectory K extends from the outside inwards.

When the door body 30 is formed by G ₄ (G ₄ Rotate open to G =90° _max The second track line K is defined by the reference plane M ₀ The second track line K and the plane of the pick-and-place port are gradually increased in the included angle and the reference plane M ₀ The included angle between the two is gradually reduced; namely, at the door body 30, G is used as a material ₄ (G ₄ Rotate open to G =90° _max In a direction from the door rear wall 33 toward the door front wall 31 (from the second guide end point K) with respect to the case 10 ₂ Pointing to the first guiding end point K ₁ The direction of (a) the second trajectory line K always extends outwards and backwards. Namely, the door body 30 is formed by G ₄ (G ₄ Rotate open to G =90° _max From the first guiding end point K ₁ Pointing to the second guiding end point K ₂ The second trajectory line K extends inward and forward.

In the second stage of opening process, the positioning groove 6 and the guide groove 7 are used as reference objects for analysis;

(1) As shown in fig. 19, the door 30 is formed by G ₃ Open to G ₄ When the axis line segment IP is defined by I ₃ P ₃ Clockwise and inwardly and backwardly sequentially move to I ₄ P ₄ Department (I) ₃ P ₃ →I ₄ P ₄ ). In the process, along the first guiding end point K ₁ Pointing to the second guiding end point K ₂ The second trajectory line K extends inwardly and rearwardly; in addition, since the positioning groove 6 and the guide groove 7 are provided on the door body 30, the axis line segment IP represents the movement of the guide round block 5 provided on the box body 10; the following is obtained: taking the door body 30 as a reference object, the door body 30 is formed by G ₃ Open to G ₄ Throughout the process, the housing 10 (i.e., the guide knob 5) remains rotated clockwise relative to the door 30 and toward and along the second trajectory line K toward the second guide endpoint K ₂ Is moved in the direction of (2); specifically, the guiding central axis I is defined by a third guiding point I ₃ Moving along the second trajectory K toward the door rear wall 33Fourth guide point I ₄ . I.e., the case 10 maintains a clockwise and inward rearward movement tendency with respect to the door 30.

Based on the relativity of the movement, the door body 30 is formed by G by taking the box body 10 as a reference object (namely, taking the guide round block 5 as a reference object) ₃ Open to G ₄ Throughout the process, the door 30 (i.e., the positioning groove 6 and the guide groove 7) rotates counterclockwise relative to the case 10 and approaches the first guide end point K ₁ Is moved in the direction of (2); i.e., the door 30 maintains a tendency to rotate counterclockwise and move forward outward with respect to the cabinet 10. I.e. the door 30 is opened from the closed state to G ₃ Throughout the process, the door 30 moves outwardly and forwardly a certain distance with respect to the case 10.

(2) As shown in fig. 19-21, referring to fig. 15 and 23, the door 30 is formed by G ₄ Open to G _max When the axis line segment IP is defined by I ₄ P ₄ Clockwise and inwardly and backwardly sequentially move to I ₆ P ₆ Department (I) ₄ P ₄ →I ₅ P ₅ →I ₆ P ₆ ). In the process, the first guiding end point K ₁ Pointing to the second guiding end point K ₂ The second trajectory line K extends inward and forward; in addition, since the positioning groove 6 and the guide groove 7 are provided on the door body 30, the axis line segment IP represents the movement of the guide round block 5 provided on the box body 10; the following is obtained: taking the door body 30 as a reference object, the door body 30 is formed by G ₄ Open to G _max Throughout the process, the housing 10 (i.e., the guide knob 5) remains rotated clockwise relative to the door 30 and toward and along the second trajectory line K toward the second guide endpoint K ₂ Is moved in the direction of (2); specifically, the guiding central axis I is defined by a fourth guiding point I ₄ Passing through the fifth guide point I along the second trajectory line K ₅ To a sixth guide point I toward the door rear wall 33 ₆ . I.e., the case 10 maintains a clockwise and inward forward movement tendency with respect to the door 30.

Based on the relativity of the movement, the door body 30 is formed by G by taking the box body 10 as a reference object (namely, taking the guide round block 5 as a reference object) ₄ Open to G _max Throughout the process, the door 30 (i.e., the positioning groove 6 and the guide groove 7) rotates counterclockwise relative to the case 10 and approaches the first guide end point K ₁ Is moved in the direction of (2); i.e. doorThe body 30 maintains a tendency to rotate counterclockwise and move outwardly and rearwardly relative to the housing 10. Namely, the door body 30 is formed by G ₄ Open to G _max Throughout the process, the door 30 moves rearward and outward a certain distance with respect to the case 10. In the above opening process, the door body 30 moves backward, so as to effectively supplement the forward moving distance of the door body 30 in the earlier stage, and avoid excessive forward movement caused by the rotation of the door body 30 to obviously separate the door body 30 from the box body 10, thereby ensuring the stability of the door body 30 in the state.

In summary, the movement trend during the opening of the door body 30 is characterized as follows:

(1) The door body 30 is opened from the closed state to G ₄ In the process, the door 30 moves forward by a certain distance outwards with respect to the case 10; with reference to fig. 24-26, when the door 30 is opened, the opened door 30 drives the side sealing strip 3 thereon to move outwards, and the moving side sealing strip 3 is quickly separated from the side sealing strip on the other door 30 (see the change of the area in the dashed frame in fig. 25 and 26), so that the other door 30 is effectively prevented from being driven to be opened due to the movement of the side sealing strip. Namely, the stage can avoid that one of the two oppositely arranged door bodies 30 is driven to be opened when the other door body 30 is opened, and effectively reduces the loss of cold energy; meanwhile, the shielding of the door body 30 to the taking and placing port can be effectively reduced; interference with the case 10 during the opening of the door 30 is also effectively avoided.

(2) The door body 30 is formed by G ₄ Open to G _max In the process, the door 30 moves backward and outward a certain distance with respect to the case 10; the stage effectively supplements the forward moving distance of the door body 30 in the earlier stage, and avoids the door body 30 from being obviously separated from the box body 10 due to excessive forward movement caused by the rotation of the door body 30, thereby ensuring the stability of the door body 30 in the state; meanwhile, the shielding of the door body 30 to the taking and placing port can be effectively reduced;

(3) The door 30 is opened from the closed state to the maximum angle G _max In the process of the above, the door body 30 always has a trend of moving outwards, which can effectively reduce the shielding of the door body 30 to the access opening, so that the drawer accommodated in the storage chamber fully utilizes the width of the storage chamber, the width dimension of the drawer is increased, the space utilization rate of the drawer is increased, and the drawer can be ensured to be pulled out from the storage chamber.

In conclusion, the arrangement of the track features prevents one door body 30 from being driven to be opened when the other door body 30 is opened, and effectively reduces the loss of cold energy; on the other hand, the door body 30 is prevented from shielding the access opening when being opened to the maximum angle, so that the width dimension of the drawer is conveniently increased.

In summary, referring to fig. 15-23, the positioning slot 6 and the guiding slot 7 are used as reference objects, the axis line IP always rotates clockwise, and approaches the second guiding endpoint K relative to the second track line K ₂ Is moved in the direction of (2); specifically, the movement direction of the axis line segment IP relative to the second track line K is I ₀ P ₀ →I ₁ P ₁ →I ₂ P ₂ →I ₃ P ₃ →I ₄ P ₄ →I ₅ P ₅ →I ₆ P ₆ The method comprises the steps of carrying out a first treatment on the surface of the In the application, the movement trend of the axis line segment IP relative to the second track line K is consistent, and the movement is continuous, no acceleration mutation exists, and the door body 30 is stressed well, more stable and smoother when being opened.

In some embodiments of the present application, as shown in fig. 27-33, the door 30 (the positioning slot 6 and the guide slot 7) is rotated to be opened relative to the box 10 by taking the box 10 (the hinge shaft 4 and the guide round block 5) as a reference, corresponding to the door 30 being opened to 0 ° G ₁ 、G ₂ 、G ₃ 、G ₄ 、G ₅ 、G _max The first side edges W are positioned in turn at W relative to the guide round block 5 ₀ 、W ₁ 、W ₂ 、W ₃ 、W ₄ 、W ₅ 、W ₆ A place; i.e. the door body 30 is rotated to open to G _max In the process, the moving track of the first side edge W is W ₀ 、W ₁ 、W ₂ 、W ₃ 、W ₄ 、W ₅ 、W ₆ While the curve is located. It can be derived that: in the whole process that the door body 30 rotates and moves outwards and forwards, and then rotates and moves outwards and backwards, the first side edge W moves outwards for a certain distance, and then keeps the trend of moving outwards; and rotates to G at the door body 30 ₃ And then move outward to the maximum position. In this embodiment, G ₃ ∈[48°，52°]Any one of themThe value gives that the first side edge W moves outward to the maximum point when the door body 30 rotates to the open angle around 50 °.

Wherein the door body 30 is opened to 0 DEG G assuming that the door body 30 rotates around a fixed shaft (guide center axis I) ₁ 、G ₂ 、G ₃ 、G ₄ 、G ₅ 、G _max In the process, the positions of the first side edges W relative to the guide round blocks 5 are sequentially positioned at W ₀ 、W` ₁ 、W` ₂ 、W` ₃ 、W` ₄ 、W` ₅ 、W` ₆ Where it is located.

In contrast to the arrangement of the present application and the manner in which the door body 30 rotates about a fixed axis (guide center axis I), it can be seen that: w (W) ₁ Located at W ₁ Is directed to the outward and forward side, W ₂ Located at W ₂ Is directed to the outward and forward side, W ₃ Located at W ₃ Is directed to the outward and forward side, W ₄ Located at W ₄ Outside, W ₅ Located at W ₅ Is directed to the rear side outwards, W ₆ Located at W ₆ Is arranged on the outward and backward side of the frame; in summary, the door body 30 in the present embodiment is opened from the closed state to the closed state with respect to the door body 30 rotating about the fixed shaft (guide center axis I) _max The first side edge W always moves outward a certain distance throughout the entire process.

In the embodiment of the application, the door body 30 is opened to an opening angleWhen the door 30 is rotated, it is kept moving outward. Namely, the relative positions of the hinge shaft 4 and the positioning slot 6 are +.>In the opening process of the door body 30 in the initial state, the door body 30 rotates and moves outwards in the initial opening stage, so that the situation that one of the two oppositely arranged door bodies 30 is driven to be opened when the other door body 30 is opened can be avoided. So that the guide round block 5 and the hinge shaft 4 are not limited to the position I in the present application when the door 30 is closed ₀ 、P ₀ Where it can be arranged to be dependent onSecondary is located above I ₁ 、P ₁ Where it may also be arranged so that it is located in turn at I ₂ 、P ₂ Where it is arranged to be sequentially located at I ₃ 、P ₃ And a portion … …. Namely, in the present embodiment, the door body 30 is opened to +.>The axial radius IA of the guide round 5 with respect to the door 30 can be set to be the axial radius IA of the guide round 5 with respect to the door 30 in the initial state when the door 30 is closed.

In the embodiment of the application, the door body 30 is opened from the closed state to the maximum angle G _max In the whole process of more than 90 degrees, the position of the hinge shaft 4 in the positioning slot 6 and the position of the guide round block 5 in the guide slot 7 are always changed, and the hinge shaft moves unidirectionally, so that the hinge shaft is free from abrupt stress, and the hinge shaft moves more smoothly.

In some embodiments of the present application, as shown in fig. 27-33, assuming that the door body 30 rotates around a fixed axis (guide center axis I), the door body 30 is opened to 0 °, G ₁ 、G ₂ 、G ₃ 、G ₄ 、G ₅ 、G _max During the process, the positions of the side seal edges H relative to the guide round blocks 5 are sequentially positioned at H' ₀ 、H` ₁ 、H` ₂ 、H` ₃ 、H` ₄ 、H` ₅ 、H` ₆ Where it is located.

In contrast to the arrangement of the present application and the manner in which the door body 30 rotates about a fixed axis (guide center axis I), it can be seen that: h ₁ Located at H ₁ Is directed to the outward and forward side of H ₂ Located at H ₂ Is directed to the outward and forward side of H ₃ Located at H ₃ Is directed to the outward and forward side of H ₄ Located at H ₄ Outside, H ₅ Located at H ₅ Is directed to the rear side outwards, H ₆ Located at H ₆ Is arranged on the outward and backward side of the frame; in summary, the door body 30 in the present embodiment is opened from the closed state to the closed state with respect to the door body 30 rotating about the fixed shaft (guide center axis I) _max In the whole process of (2), the side seal edge H always moves outwards for a certain distance; the distance of outward movement of the side seal edge H is greatly increased, and the reduction ofThe door body 30 shields the access opening in the transverse direction.

In this embodiment, a second reference plane M is further defined ₂ . Wherein, referring to FIG. 11, a second reference plane M ₂ Is the plane of the access opening of the storage room. Second reference plane M ₂ The door 30 does not move with respect to the case 10 during the opening process, and is a reference plane that remains stationary with respect to the case 10.

The door body 30 is opened from the closed state to G ₅ During the process of (1), the side seal H always keeps away from the second reference plane M ₂ And a reference plane M ₀ Is moved in the direction of (2);

the door body 30 is formed by G ₅ Open to maximum angle G _max In the course of (2), the side seal H is directed away from the second reference plane M ₂ And is close to the reference plane M ₀ Is moved in the direction of (2);

i.e. door 30 opens to G ₅ When in use, the side seal edge H and the second reference plane M ₂ Is the largest; in this embodiment, G ₅ ＝103°。

As an embodiment, the door 30 is opened from the closed state to G ₅ In the process, the motion track of the side seal edge H is an arc; namely, the side seal H moves in an arc shape during the opening of the door body 30. The arc includes a standard arc defined mathematically and also includes an arc having a small deviation from the standard arc. As a possible way, the smaller deviation is limited to within 1 mm. The hinge with the above track feature and the track change mechanism of the door body 20 make the door body 30 open more smoothly.

In some embodiments of the present application, as shown in connection with FIG. 15, the door 30 is rotated to open a maximum angle G from a closed state _max In the process, the relative position relation between the centroid plane F and the guide central shaft I and the positioning central shaft P is continuously changed; this will be described below.

In the projection of the top wall of the box 10, the distance between the guide central axis I and the centroid plane F is recorded as an offset distance J; in the process that the door body is opened from a closed state to G', in the projection of the plane of the top wall of the box body, a guide central shaft I is positioned at one side of a centroid plane F, which is close to the front wall of the door; in the opening process, as the opening angle of the door body increases, the offset distance gradually decreases, and when the door body is opened to G', the offset distance J is 0;

The door body is opened from G' to G _max In the projection of the plane of the top wall of the box body, the guiding central shaft I is positioned at one side of the centroid plane F far away from the front wall of the door; in the opening process, the offset distance gradually increases as the opening angle of the door body increases.

As described above from another angle, when the guide center axis I is set to be located on the side of the centroid plane F near the door front wall 31, the offset distance J is a positive number; correspondingly, when the guide central axis I is positioned on one side of the centroid plane F away from the door front wall 31, the offset distance J is a negative number; when the guide central axis I is positioned on the centroid plane F, the offset distance J is 0;

in the process of opening the door body 30 from the closed state to G', the offset distance J between the guide center axis I and the centroid plane F tends to decrease. When the door body is opened to G', the offset distance J is 0; settable, g=22°.

The door 30 is opened from G' to G _max In the process of (2), the offset distance J is a negative number, and the offset distance J tends to decrease with the increase of the opening angle.

In some embodiments of the application, the door 30 opens to G ₀ 、G ₁ 、G`、G ₂ 、G ₃ 、G ₄ 、G ₅ 、G _max The offset distances are sequentially recorded as J ₀ 、J ₁ 、J`、J ₂ 、J ₃ 、J ₄ 、J ₅ 、J ₆ ；J ₀ ＞J ₁ ＞J`＝0＞J ₂ ＞J ₃ ＞J ₄ ＞J ₅ ＞J ₆ 。

In the above embodiment, the door 30 is opened from the closed state to G _max In the course of (a), the offset distance J (the absolute value of J when the position is positive or negative) is any one of 0 to 7 mm. In this embodiment, the distance between the center of mass plane F of the door body 30 and the guiding central axis is effectively limited, so that the center of mass plane F is always near the guiding central axis I, and the stability of the whole opening process of the door body 30 is effectively enhanced.

When the door body 30 is closed, the centroid plane F is located between the guide center axis I and the positioning center axis P, further ensuring the stability of the door body 30 in the closed state.

In some embodiments of the application, the refrigerator door is flush with the side of the cabinet when the door is opened at 90 degrees.

And the door body is prevented from exceeding the side wall of the box body too much when the door body is 90 degrees, and the bulge of the box body caused by foaming is prevented.

As an implementation manner, as shown in fig. 8 and 12, when the door body 30 is closed, the positioning center axis P is located at the initial positioning point P of the first track line S ₀ The method comprises the steps of carrying out a first treatment on the surface of the Start positioning point P ₀ With a reference plane M ₀ Is L ₁ . The front wall 31 of the door is parallel to the plane of the pick-and-place opening;

when the door body 30 is opened to 90 °, the door front wall 31 is parallel to the first body side wall; the positioning center axis P is located at a fourth positioning point P of the first track line S ₄ The method comprises the steps of carrying out a first treatment on the surface of the Fourth positioning point P ₄ At a distance L from the door front wall 31 ₂ 。

L ₁ ＝L ₂ When the door body 30 is opened to 90 degrees, the door front wall 31 is flush with the first body side wall of the case body 10; wherein L is ₁ And L is equal to ₂ Equal is specifically defined as L ₁ And L is equal to ₂ The difference between them is any value of-2 mm to 2 mm.

L ₁ ＜L ₂ When the door body 30 is opened to 90 °, the door front wall 31 protrudes outside the first body side wall of the case 10. As another embodiment, L ₁ ＜L ₂ ，0≤L ₂ -L ₁ And is less than or equal to 4cm to shade the bulge caused by foaming on the refrigerator body 10, effectively conceal the flaw and improve the beautiful degree of the refrigerator.

In the present embodiment, "parallel" is specifically defined as that the included angle between two planes is any value from 0 ° to 3 °. That is, the two-plane relationship in which the two-plane included angle belongs to any one value of 0 ° to 3 ° is defined as parallel. "flush" is specifically defined as any value where the maximum distance between two planes is less than 2 mm. The term "perpendicular" is specifically defined as the angle between two planes belonging to any one of 88 DEG to 90 deg. This definition applies throughout this application.

FIG. 34 is a schematic view of a hinge according to the present application; as shown in fig. 4-7 and 34, in some embodiments of the application, the hinge is integrally formed by die casting. In the above description, the hinge disposed at the lower end of the door body is taken as an example, and the hinge plate 40, the guide round block 5 and the hinge shaft 4 are integrally formed in a die-casting manner, so that the connection strength and the integrity of the hinge plate 40, the guide round block 5 and the hinge shaft 4 are effectively increased.

The hinge is suitable for the hinge arranged at the lower end of the door body 30 and is also suitable for the hinge arranged at the upper end of the door body 30 in an integrally molded manner by die casting.

FIGS. 35-38 are schematic views of another embodiment of a hinge according to the present application; as shown in fig. 35-38, in some embodiments of the present application, the hinge plate 40 and the guide knob 5 are provided separately. In this embodiment, a hinge provided at the lower end of the door body is taken as an example for explanation; it should be noted that the following structure of the hinge is also applicable to the upper hinge disposed at the upper end of the door 30;

specifically, the hinge shaft 4 and the positioning shaft 60 are formed on the extension 402 of the hinge plate 40. In this embodiment, the hinge shaft 4 is located on a side of the positioning shaft 60 close to the case 10 and away from the first body sidewall. The guide round block 5 is in a flat plate shape, and the guide round block 5 is provided with a first through hole 51 and a second through hole 52; wherein the first through hole 51 is matched with the hinge shaft 4, and the second through hole 52 is matched with the positioning shaft 60; the guide knob 5 is mounted on the extension 402 of the hinge plate 40 through the first through hole 51 and the second through hole 52. The hinge shaft 4 and the positioning shaft 60 are matched with the guide round block 5, so that the guide round block 5 is convenient to install, and the guide round block 5 can be effectively limited to move in the surface of the extension part 402 close to the door body 30; the positioning slot 6 on the door body 30 is matched with the hinge shaft 4, the guide slot 7 is matched with the guide round block 5, and the movement of the guide round block 5 along the central axis direction of the hinge shaft 4 is effectively limited; the above arrangement effectively fixes the guide knob 5 and moves relative to the guide groove 7 during the opening of the door body 30. The hinge plate 40 and the guide round block 5 are arranged in a split mode, and replacement and maintenance of parts are facilitated.

In addition, in this embodiment, the guide round block 5 may be molded by injection molding or die casting.

It should be noted that the height of the positioning shaft 60 is not higher than the depth of the second through hole 52 of the guide knob 5; in the present embodiment, the height of the positioning shaft 60 is equal to the depth of the second through hole 52; that is, the positioning shaft 60 is accommodated in the second through hole 52, so as to avoid the interference of the positioning shaft 60 with other components to influence the movement of the door body 30.

As an alternative, the second through hole 52 is located at the center of the guide knob 5; the positioning shaft 60 is installed in the second through hole 52, passing through the center of the guide knob 5. The center of the second through hole 52 can be arranged to coincide with the center point of the guide round block 5. I.e. the central axis I of the guide knob 5 coincides with the central axis of the positioning shaft 60, to effectively limit the movement of the hinge plate 40 and the guide knob 5 in the surface of the extension 402 close to the door 30, reducing the sloshing and improving the stability of the opening of the door 30.

FIGS. 39-40 are schematic views of another embodiment of a hinge according to the present application; in some embodiments of the present application, as shown in fig. 39-40, the hinge plate 40 and the guide knob 5 are provided separately. In this embodiment, a hinge provided at the lower end of the door body is taken as an example for explanation; it should be noted that the following structure of the hinge is also applicable to the upper hinge disposed at the upper end of the door 30;

Specifically, the extension 402 of the hinge plate 40 has a first positioning hole 53 and a second positioning hole 54 formed therein. In this embodiment, the first positioning hole 53 is located on a side of the second positioning hole 54 close to the case 10 and away from the first body sidewall. The guide round block 5 is in a flat plate shape, and the guide round block 5 is provided with a hinge shaft 4 and a positioning shaft 60; wherein the hinge shaft 4 comprises a first shaft section positioned on one side of the guide circular block 5 close to the extension part 402 and a second shaft section positioned on one side of the guide circular block far away from the extension part 402; wherein the positioning shaft 60 and the first shaft section are positioned on the same side of the guide circular block 5; the first shaft section of the hinge shaft 4 is matched with the first positioning hole 53, and the positioning shaft 60 is matched with the second positioning hole 54; the guide knob 5 is mounted on the extension 402 of the hinge plate 40 through the first and second positioning holes 53 and 54. The first positioning hole 53 and the second positioning hole 54 are matched with two shafts on the guide round block 5, so that the guide round block 5 is convenient to install, and the guide round block 5 can be effectively limited to move in the surface of the extension part 402, which is close to the door body 30; the positioning slot 6 on the door body 30 is matched with the second shaft section of the hinge shaft 4, and the guide slot 7 is matched with the guide round block 5, so that the movement of the guide round block 5 along the central shaft direction of the hinge shaft 4 is effectively limited; the above arrangement effectively fixes the guide knob 5 and moves relative to the guide groove 7 during the opening of the door body 30.

As a way of being settable, the height of the positioning shaft 60 is not higher than the depth of the second through hole 52 of the guide knob 5; in the present embodiment, the height of the second positioning hole 54 is equal to the depth of the second through hole 52; that is, the second positioning hole 54 is accommodated in the second through hole 52, so as to avoid the second positioning hole 54 interfering with other components to affect the movement of the door 30.

As another alternative, the positioning shaft 60 and the hinge shaft 4 are respectively located at opposite sides of the guide central axis I to increase the firmness of the hinge and the guide knob 5 and reduce the relative movement between the extension 402 and the guide knob 5. The central axis of the positioning shaft 60, the central axis of the hinge shaft 4 and the guiding central axis I are arranged on the same straight line in the section of the guiding circular block 5; that is, the center axis of the positioning shaft 60 and the center axis of the hinge shaft 4 are on the same diameter of the cross section of the guide knob 5 in the cross section of the guide knob 5. So as to increase the connection strength to the guide round block 5, reduce the wobble of the guide round block 5, and equalize the distribution of forces.

FIG. 41 is a schematic view of another embodiment of the hinge of the present application; referring to fig. 41, in some embodiments of the present application, the hinge plate 40 and the guide knob 5 are separately provided. In this embodiment, a hinge provided at the lower end of the door body is taken as an example for explanation; it should be noted that the following structure of the hinge is also applicable to the upper hinge disposed at the upper end of the door 30; specifically, a hinge connection portion 401 provided at the lower end of the door 30 is connected to the front end surface of the case 10. The extension 402 of the hinge plate 40 is formed with a pit 3, and the projection of the pit 3 on the hinge plate 40 is circular; a hinge shaft 4 is formed on one side of the pit 3 close to the box body 10, and the hinge shaft 4, the extension part 402 and the connecting part 401 are integrally formed; the guide round block 5 is in a flat plate shape, and the guide round block 5 is provided with a first through hole 51 matched with the hinge shaft 4; the guide knob 5 is mounted on the extension 402 of the hinge plate 40 through the first through hole 51 and the recess 3. The outer peripheral wall of the guide block 5 is in contact fit with the inner peripheral wall of the pit 3; the circumference of the guide round block 5 is uniformly stressed under the limit of the pit 3, so that the matching stability of the guide round block 5 and the hinge plate 40 is improved. The hinge shaft 4 and the pit 3 are arranged above, so that the hinge is matched with the guide round block 5, the installation of the guide round block 5 is convenient, and the movement of the guide round block 5 in the surface of the extension part 402 close to the door body 30 can be effectively limited; the positioning slot 6 on the door body 30 is matched with the hinge shaft 4, the guide slot 7 is matched with the guide round block 5, and the movement of the guide round block 5 along the central axis direction of the hinge shaft 4 is effectively limited; the above arrangement effectively fixes the guide knob 5 and moves relative to the guide groove 7 during the opening of the door body 30. The hinge plate 40 and the guide round block 5 are arranged in a split mode, and replacement and maintenance of parts are facilitated.

It should be noted that, in the direction perpendicular to the hinge plate 40, the thickness of the guide round 5 is higher than the depth of the pit 3, so as to ensure that the guide round 5 is at least partially located outside the pit 3 to achieve its cooperation with the guide groove 7.

Fig. 42 to 52 are schematic views showing a structure of locking the door and the case according to the present application; referring to fig. 42 to 52, in some embodiments of the present application, a positioning groove 6 and a guide groove 7 are formed on a door body 30, and a locking block is fixed to the door body 30 and is mounted on the door body 30 adjacent to the guide groove 7. In this embodiment, the end of the hinge away from the first body side wall is provided with a first matching portion, and the locking block is provided with a second matching portion, where the second matching portion is used to match with the first matching portion to lock and unlock the door 30 and the box 10.

Specifically, in the present embodiment, a lock block provided at the lower end of the door body 30 is described as an example. The door body 30 includes a door end cap 38, the door end cap 38 being provided at an end of the door body 30 near the hinge. The door end cap 38 has a positioning groove 6 and a guide groove 7 near the hinge. That is, in the present embodiment, the positioning groove 6 and the guide groove 7 are integrally formed on the door end cover 38. In this embodiment, the door end cover 38 is an injection molded piece, which is integrally molded by injection molding, and the positioning groove 6 and the guiding groove 7 are formed thereon. As previously described, the guide groove 7 is defined by the first guide bar 8 and the second guide bar 9 in cooperation.

The door end cover 38 is provided with a receiving groove 37 at an adjacent position apart from the door side wall 32, and a locking block is inserted into the receiving groove 37 and then fastened to the door body 30 by a screw or the like.

In this embodiment, the second mating portion of the locking block is provided as a locking hook 82. The latch hook 82 extends to a side away from the door side wall 32 and is formed by bending toward a side close to the door rear wall 33 and the door side wall 32, an opening of the latch hook 82 faces the door side wall 32, and a free end of the latch hook 82 is located at a side close to the door rear wall 33.

The first matching part arranged on one side of the hinge plate 40 far away from the first body side wall is provided with a stop part 41, and a hooking gap 42 is formed on one side of the stop part 41 close to the box body; when the door body 30 is in a closed state, the free end of the lock hook 82 is accommodated in the hooking gap 42, the stop part 41 is positioned in the lock hook 82, and the lock hook 82 on the door body 30 hooks the stop part 41 on the hinge plate 40, so that the door body 30 is locked, and the influence on the refrigerating and freezing effects of the refrigerator due to the fact that the door body 30 is not tightly closed is avoided; when the door body 30 is opened, the latch hook 82 is forced to deform to overcome the blocking of the stopper 41, thereby disengaging from the stopper 41.

The latch hook 82 may include a root 83 and a hooking portion 84. The root portion 83 is fixedly connected to the accommodation groove 37, and the hooking portion 84 is connected to the root portion 83 and bent toward the door rear wall 33 and the door side wall 32. The screw penetrates through the root connection portion 83 and is connected with the door body 30 to strengthen the connection strength of the root connection portion 83 and the door body 30, so that the latch hook 82 only deforms at the hooking portion 84 when being separated from the stop portion 41.

The free ends of the hooking portion 84 and the stopping portion 41 are arc-shaped, which is beneficial for the hooking portion 84 to smoothly hook the stopping portion 41 along an arc or separate from the stopping portion 41.

Referring to fig. 42 to 52, when the door body 30 is closed from the open state, the free end of the hooking portion 84 gradually approaches the stopper portion 41 as the door body 30 rotates and closes, and when the hooking portion 84 abuts against the stopper portion 41, the door body 10 continues to close, the hooking portion 84 deforms under the action of the stopper portion 41, the stopper portion 41 enters the hooking portion 84, and the free end of the hooking portion 84 enters the hooking gap 42; the latch hook 82 is locked with the hinge plate 40 to lock the door 30 with the case 10. When the door 30 is opened from the closed state, the process is opposite to the process of closing the door, and will not be described again. When the door body 30 is closed from the open state to an angle smaller than 7 degrees, the door body 30 is automatically closed under the action of the hooking part 84 and the stopping part 41; when the door body is opened to 5 ° to 8 °, the hooking portion 84 is separated from the stopper portion 41.

In some embodiments, the door body 30 may have a first protrusion 34 and a second protrusion 35 in the receiving groove 37, and a gap groove 36 is formed between the first protrusion 34 and the second protrusion 35; the first projection 34 is located approximately on the side of the second projection 35 adjacent to the door front wall 31 and the door side wall 32. The root portion 83 is formed with a plug plate 85, and the plug plate 85 is inserted into the clearance groove 36, so that deformation of the root portion 83 in a direction from the door front wall 31 to the door rear wall 33 can be avoided by the restriction of the first protrusion 34 and the second protrusion 35.

Specifically, the plug board 85 is provided as an arc board; the second protrusion 35 is an arc-shaped plate, the edge of the first protrusion 34 close to the second protrusion 35 is consistent with the shape of the second protrusion 35, and the first protrusion 34 and the second protrusion 35 jointly define an arc-shaped clearance groove 36; the arcuate plate-like tab 85 mates with the arcuate slot 36. The above arc arrangement increases the limiting area of the clearance groove 36 to the root joint 83, increases the connection strength of the locking block and the door body 30, and effectively limits the deformation of the root joint 83.

The locking block can be made of POM material, and the POM has the characteristic of strong friction resistance, so that the service life of the hinge can be prolonged.

FIGS. 53 to 55 are schematic views showing a structure of locking the door and the case according to the present application; referring to fig. 53-55, in some embodiments of the present application, the door body 30 includes a door end cap 38, the door end cap 38 being provided at an end of the door body 30 near the hinge; a mounting block is provided on the door end cover 38 at a position opposite to the hinge plate 40, and the positioning groove 6 and the guide groove 7 are formed on the mounting block. In this embodiment, the hinge is provided with a first mating portion at one end far away from the first body sidewall, and the mounting block is provided with a second mating portion, where the second mating portion is used to mate with the first mating portion to lock and unlock the door 30 and the box 10.

Specifically, in the present embodiment, an installation block provided at the lower end of the door body 30 is described as an example. In this embodiment, the mounting block is integrally formed.

The mounting block comprises a positioning groove 7, and the positioning groove 7 comprises a groove bottom 70 and a circumferential groove wall 71; wherein the circumferential groove wall 71 surrounds the edge of the groove bottom 70, and the circumferential groove wall 71 encloses a notch 72 arranged opposite to the groove bottom 70. The mounting block comprises a plate 81 provided at the notch 72 of the positioning groove 7 and surrounding the notch 72 of the positioning groove 7. The plate 81 is provided with a first guide strip 8 and a second guide strip 9, the first guide strip 8 is positioned on one side of the positioning groove 6 away from the door side wall 32, and the second guide strip 9 is positioned on one side of the positioning groove 6 away from the door side wall 32. In addition, a receiving groove 37 is provided in a door cover 38 positioned at a lower end of the door body 30, and a mounting block is inserted into the receiving groove 37, and then the plate 81 is fastened to the door body 30 by a screw or the like. As an alternative, the plate 81 is provided with a clip 86 at one end thereof close to the door rear wall 33; a clamping projection 371 matched with the clamping interface 86 is arranged on the inner wall of the accommodating groove 37; when the mounting block is inserted into the receiving groove 37, the snap projection 371 is mounted in the snap interface 86 to define the relative position of the mounting block to the door body 30. In this embodiment, the screw is fixed on the side of the plate 81 away from the door sidewall 32, i.e. the screw fixing position is located on the side of the snap interface 86 and the snap projection 371 where the snap fit is away from the door sidewall 32, so as to effectively increase the connection firmness of the mounting block and the door 30. In this embodiment, the accommodating cavity 39 is formed in the area of the accommodating groove 37 near the door side wall 32, the positioning groove 7 is installed in the accommodating cavity 39, and the circumferential groove wall 71 is matched with the cavity wall of the accommodating cavity 39.

In some embodiments of the present application, referring to fig. 53 to 55, the second mating portion on the mounting block is provided as a latch hook structure, and in particular, the second mating portion includes a latch hook 82 provided at a side of the plate 81 remote from the door sidewall 32. The latch hook 82 extends to a side away from the door side wall 32 and is formed by bending to a side close to the door rear wall 33 and the door side wall 32, an opening of the latch hook 82 faces the plate 81 (an opening of the latch hook 82 faces the door side wall 32), and a free end of the latch hook 82 is located to a side close to the door rear wall 33.

The latch hook 82 may include a root 83 and a hooking portion 84. The root portion 83 is connected to the plate 81, and the hooking portion 84 is connected to the root portion 83 and bent toward the door rear wall 33 and the door side wall 32. The screw penetrates through the root connection portion 83 and is connected with the door body 30 to strengthen the connection strength of the root connection portion 83 and the door body 30, so that the latch hook 82 only deforms at the hooking portion 84 when being separated from the stop portion 41.

When the door body 30 is closed from the open state, along with the rotation of the door body 30, the free end of the hooking part 84 gradually approaches to the stopping part 41, when the hooking part 84 is abutted against the stopping part 41, the door body 10 is continuously closed, the hooking part 84 is deformed under the action of the stopping part 41, the stopping part 41 enters the hooking part 84, and the free end of the hooking part 84 enters the hooking gap 42; the latch hook 82 is locked with the hinge plate 40 to lock the door 30 with the case 10. When the door 30 is opened from the closed state, the process is opposite to the process of closing the door, and will not be described again. When the door body 30 is closed from the open state to an angle smaller than 7 degrees, the door body 30 is automatically closed under the action of the hooking part 84 and the stopping part 41; when the door body is opened to 5 ° to 8 °, the hooking portion 84 is separated from the stopper portion 41.

In some embodiments, the door body 30 may be provided with a first protrusion 34 and a second protrusion 35, and a gap groove 36 is formed between the first protrusion 34 and the second protrusion 35; the first projection 34 is located approximately on the side of the second projection 35 adjacent to the door front wall 31 and the door side wall 32. The root portion 83 is formed with a plug plate 85, and the plug plate 85 is inserted into the clearance groove 36, so that deformation of the root portion 83 in a direction from the door front wall 31 to the door rear wall 33 can be avoided by the restriction of the first protrusion 34 and the second protrusion 35.

Specifically, the plug board 85 is provided as an arc board; the second protrusion 35 is an arc-shaped plate, the edge of the first protrusion 34 close to the second protrusion 35 is consistent with the shape of the second protrusion 35, and the first protrusion 34 and the second protrusion 35 jointly define an arc-shaped clearance groove 36; the arcuate plate-like tab 85 mates with the arcuate slot 36. The above arc arrangement increases the limiting area of the clearance groove 36 to the root joint 83, increases the connection strength of the mounting block and the door body 30, and effectively limits the deformation of the root joint 83.

The installation block at the upper end of the door body 30 is provided with a part only provided with the positioning groove 6 and the guide groove 7, and the installation block does not comprise a locking hook structure. Correspondingly, when the structure of the mounting block is changed, the accommodating groove 37 arranged on the door body is adapted to accommodate and fix the mounting block.

The mounting block can be made of POM material, and the POM has the characteristic of high friction resistance, so that the service life of the hinge can be prolonged. In addition, in this embodiment, the positioning groove 6, the guiding groove 7 and the latch hook structure are integrally formed to form a mounting block, so that the structural accuracy is improved, and the integrity and strength of the mounting block are improved. The installation block integrating the positioning groove 6, the guide groove 7 and the locking hook structure into a whole can be integrally formed in an injection molding mode.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A refrigerator, characterized in that it comprises:

2. The refrigerator of claim 1, wherein: in the process of opening the door body from a closed state to G', in the projection of the plane of the top wall of the box body, the guide central shaft I is positioned at one side of the centroid plane F, which is close to the front wall of the door; in the opening process, as the opening angle of the door body increases, the offset distance J gradually decreases, and when the door body is opened to G', the offset distance J is 0;

the door body is opened from G' to G _max In the projection of the plane of the top wall of the box body, the guiding central axis is positioned at the I positionA side of the centroid plane F remote from the door front wall; during this opening process, the offset distance J gradually increases as the door opening angle increases.

3. The refrigerator of claim 1, wherein: the central axis of the hinge axis is marked as a positioning central axis P; when the door body is closed, the mass center plane F is positioned between the positioning central shaft P and the guiding central shaft I.

4. The refrigerator according to claim 1 or 2 or 3, wherein: the central trajectory of the guide slot is denoted as a second trajectory K, which is perpendicular to the door front wall.

5. The refrigerator according to claim 1 or 2 or 3, wherein: the central axis of the hinge shaft is marked as a positioning central axis P, and the central axis of the guide circular block is marked as a guide central axis I; in the projection of the top wall of the box body, the radius passing through the positioning center axis P in the circular section of the guide circular block is recorded as an axis radius IA, and the length of the line segment IP is larger than that of the line segment AP.

6. The refrigerator of claim 5, wherein: the plane passing through the guide central axis I and parallel to the first body side wall is denoted as a first reference plane M ₁ The method comprises the steps of carrying out a first treatment on the surface of the In the projection of the top wall of the box body, the axis radius IA is equal to the first reference plane M ₁ The included angle between the two is recorded as a first included angle theta; wherein, the first included angle theta is any value of 25-35 degrees.

7. The refrigerator of claim 6, wherein: in the projection of the top wall of the box body, the axis radius IA is positioned on the first reference plane M ₁ And one side far away from the first body side wall and positioned on one side close to the box body on a plane which passes through the guide central shaft I and is parallel to the front wall of the door when the door body is closed.

8. The refrigerator according to claim 1 or 2 or 3 or 6 or 7, wherein: the guide groove comprises a first guide bar and a second guide bar which are arranged in parallel, the first guide bar is positioned at one side of the second guide bar far away from the side wall of the door, and the positioning groove is positioned between the first guide bar and the second guide bar and extends along the direction from the first guide bar to the second guide bar; the first guide strip and the second guide strip are matched with the guide round block.

9. The refrigerator according to claim 1 or 2 or 3 or 6 or 7, wherein: the center track line of the positioning groove is marked as a first track line S, and the distance between the end of the first track line S away from the door side wall and the door front wall is marked as D ₀ The method comprises the steps of carrying out a first treatment on the surface of the The distance between the end of the first trajectory S near the door side wall and the door front wall is denoted as D ₁ The method comprises the steps of carrying out a first treatment on the surface of the Wherein D is ₀ ≥D ₁ 。

10. The refrigerator according to claim 1 or 2 or 6 or 7, wherein: the door body comprises a door back wall which is arranged opposite to the door front wall, and a door seal is arranged on the door back wall; the edges of the door seal close to the side wall of the door and far from the front wall of the door are marked as side seal edges H;

the box body defines an insulated storage chamber, and the storage chamber is provided with a fetching opening which is closed or opened by the door body; the plane of the pick-and-place opening is marked as a second reference plane M ₂ The method comprises the steps of carrying out a first treatment on the surface of the The plane of the first body side wall is marked as a reference plane M ₀ The method comprises the steps of carrying out a first treatment on the surface of the The second reference plane M ₂ And the reference plane M ₀ The door body does not move along with the box body in the opening process of the door body relative to the box body, and is a reference plane which is kept stationary relative to the box body;

the door body is formed by G ₅ Open to maximum angleDegree G _max In the course of (2), the side seal H is directed away from the second reference plane M ₂ And is close to the reference plane M ₀ Is moved in the direction of (2); wherein G is _max ＞G ₅ ＞90°。