CN217841171U - Door assembly and refrigerator - Google Patents

Abstract

The utility model discloses a door component and a refrigerator, wherein the door component comprises a shell, the shell is provided with a handle groove, and the handle groove is provided with an opening; the panel is positioned at the opening; one end of the first connecting piece is relatively fixed with the first rotating shaft, and the other end of the first connecting piece is rotatably connected to the panel; the driving device is connected to the shell and drives the first rotating shaft to rotate; the second rotating shaft is rotatably connected to the shell; one end of the second connecting piece is fixedly connected to the second rotating shaft, and the other end of the second connecting piece is rotatably connected to the panel; one end of the elastic component is connected with the swing rod, the other end of the elastic component is connected with the shell, and the elastic component comprises an elastic piece; by means of energy conversion of the elastic piece, the elastic piece drives the swing rod to rotate towards different directions in the first state and the second state, assistance can be provided when the user pushes the hand, and the panel can be kept at a position where the handle groove is exposed or covered.

Description

Door assembly and refrigerator

Technical Field

The utility model relates to the technical field of household appliances, in particular to door subassembly and refrigerator.

Background

In order to facilitate the opening of the refrigerator, the door body is generally provided with handles, the handles are generally visible handles arranged on the door body, and most of the handles are fixed and non-movable structures. The matching structure of the handle and the door body is bad, the attractive appearance effect of the whole refrigerator is easily influenced, the handle is arranged on the surface of the door body, a part of space is occupied, impurities such as dust and the like easily fall on the handle, and the handle is easy to dirty and needs to be cleaned frequently. In order to solve the above problems, in the related art, a design of a hidden handle is adopted. Specifically, a groove is formed in the door body, the handle panel is arranged in the groove and is connected with the bottom wall of the groove through a spring, and the handle panel is pressed at the opening of the groove. However, in the process of pushing the handle panel open by hand, the elastic force of the spring needs to be overcome, so that the resistance is large, the use is inconvenient, and the user experience is not good.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a door subassembly can provide the helping hand in the hand push, promotes user experience.

The utility model discloses still provide a refrigerator that has above-mentioned door subassembly.

The door assembly according to the first aspect of the present invention comprises a housing, a panel, a first rotating shaft, a first connecting member, a driving device, a second rotating shaft, a second connecting member, and an elastic member, wherein the housing is provided with a handle groove having an opening; the panel is positioned at the opening; one end of the first connecting piece is relatively fixed with the first rotating shaft, and the other end of the first connecting piece is rotatably connected to the panel; the driving device is connected to the shell and drives the first rotating shaft to rotate; the second rotating shaft is rotatably connected to the shell; one end of the second connecting piece is fixedly connected to the second rotating shaft, and the other end of the second connecting piece is rotatably connected to the panel; one end of the elastic component is connected with the swing rod, the other end of the elastic component is connected with the shell, and the elastic component comprises an elastic piece; the door assembly has a first state and a second state, and in the first state, the elastic piece acts on the swing rod to enable the swing rod to have a tendency of rotating around a first rotation direction; in the second state, the elastic piece pushes the swing rod to rotate around a second rotation direction, and the first rotation direction is opposite to the second rotation direction; in the process of switching the first state and the second state, the elastic element has a critical state, and in the critical state, the acting force direction of the elastic element acting on the swing rod faces to the rotation center of the swing rod.

According to the utility model discloses door subassembly has following beneficial effect at least: by means of energy conversion of the elastic piece, the elastic piece drives the swing rod to rotate towards different directions in the first state and the second state, assistance can be provided when the user pushes the hand, and the panel can be kept at a position where the handle groove is exposed or covered.

According to the utility model discloses a some embodiments, the shell is equipped with first installation department, the pendulum rod is equipped with the second installation department, the one end of elastic component rotate connect in first installation department, the other end rotate connect in the second installation department.

According to some embodiments of the utility model, the elastic component includes the support, the support includes goods of furniture for display rather than for use and support piece, the elastic component is located for compression spring and cover support piece, the goods of furniture for display rather than for use is equipped with arc convex surface and shaft hole, support piece's one end rotate connect in second installation department, the other end is equipped with and wears to locate the sliding shaft in shaft hole, first installation department is equipped with the arc concave part, the arc convex surface with arc concave part sliding connection.

According to some embodiments of the utility model, the panel is equipped with dodges the breach of second connecting piece.

According to some embodiments of the present invention, the door assembly comprises a synchronization rod, a third connecting member and a fourth connecting member, one end of the third connecting member is fixedly connected to the first rotating shaft, and the other end is rotatably connected to the synchronization rod; one end of the fourth connecting piece is fixedly connected with the second rotating shaft, and the other end of the fourth connecting piece is rotatably connected with the synchronizing rod.

According to some embodiments of the invention, the drive arrangement comprises a motor, which is mounted in the housing through a mounting bracket.

According to some embodiments of the utility model, the motor passes through the coupling joint first pivot, the one end fixed connection of third connecting piece in the shaft coupling.

According to some embodiments of the utility model, the panel includes base plate and boss, the boss is protruding to be located the base plate, the base plate is located the handle inslot, the boss can wear to locate the opening.

According to some embodiments of the invention, in the first state, an outer surface of the boss is flush with or in smooth transition with an outer surface of the housing; in the second state, the panel is retracted in the handle groove.

According to the utility model discloses a refrigerator of second aspect embodiment, include the door subassembly of the first aspect embodiment of the utility model.

According to the utility model discloses refrigerator has following beneficial effect at least: through adopting the utility model discloses a door subassembly of first aspect embodiment utilizes elastic component energy transformation, first state and second state, and elastic component drive pendulum rod rotates towards not equidirectional, except can providing the helping hand in the hand push, also can make the panel keep in the position of revealing out the handle groove or the position of closing cap handle groove.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The invention is further described with reference to the following figures and examples, in which:

fig. 1 is a schematic view of a door assembly of an embodiment of the present invention;

FIG. 2 is a front view of the door assembly shown in FIG. 1;

FIG. 3 is a top view of one embodiment of the door assembly shown in FIG. 1;

FIG. 4 is a bottom view of the door assembly shown in FIG. 1;

FIG. 5 is a top view of another embodiment of the door assembly shown in FIG. 1;

FIG. 6 is an enlarged view at A shown in FIG. 5;

FIG. 7 is a schematic view of the door assembly of FIG. 1 with the housing omitted in one embodiment;

FIG. 8 is a schematic view of the door assembly of FIG. 1 with the outer shell omitted in accordance with another embodiment;

FIG. 9 is an enlarged view at B shown in FIG. 8;

FIG. 10 is a top view of another embodiment of the door assembly shown in FIG. 1;

FIG. 11 is an enlarged view at C shown in FIG. 10;

fig. 12 is a schematic view of the door assembly shown in fig. 1 in a closed state.

Reference numerals are as follows:

101. a housing; 102. a panel; 103. a motor; 104. a synchronization lever; 105. stretching a rib; 106. a coupling; 107. a mounting frame; 108. a housing; 109. an upper cover;

301. a fourth connecting member;

401. a first rotating shaft; 402. a first connecting member; 403. a second rotating shaft; 404. a second connecting member;

601. a third connecting member; 602. a compression spring; 603. a swing rod; 604. a first mounting portion; 605. a decoration piece; 606. a support member; 607. an indicator line;

701. a notch; 702. a locking cover; 703. a substrate; 704. a boss;

1001. a recess; 1002. a convex portion;

1101. a handle groove; 1102. a handle slot part; 1103. a movable groove part.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the directional descriptions, such as the directions or positional relationships indicated by upper, lower, front, rear, left, right, etc., are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but not for indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.

In the description of the present invention, a plurality of meanings are one or more, a plurality of meanings are two or more, and the terms greater than, smaller than, exceeding, etc. are understood as excluding the number, and the terms greater than, lower than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the terms such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the terms in the present invention by combining the specific contents of the technical solution.

It can be understood that the refrigerator according to the embodiment of the present invention may be a single-door refrigerator, including a door body (not shown in the figure), as shown in fig. 1, the door body includes a casing 101 and an inner container (not shown in the figure), an outer side surface of the casing 101 is provided with a handle groove 1101 (see fig. 12), that is, one side of the casing 101 facing a user is provided with the handle groove 1101, the handle groove 1101 has an opening (not shown in the figure), the opening is provided with a panel 102, and the panel 102 can move relative to the opening, so as to hide the opening or open the opening. The door body and the panel 102 become a part of the door assembly, and the cooperation of the panel 102 and the pull handle slot 1101 forms a handle structure, and the handle structure can be switched between a use state and a hidden state.

It can be understood that the utility model discloses the refrigerator can also be two refrigerators that open door, including two door bodies, the shell 101 of every door body all is provided with handle groove 1101, and the opening part of handle groove 1101 all is provided with panel 102 to form the handle structure at every door, can both realize the switching of handle structure at user state and hidden state.

It should be noted that, in the double-door refrigerator, the door assembly structure of the embodiment of the present invention may be adopted only in one of the doors, and the other door adopts another type of handle structure, which is not limited herein.

It can be understood that the utility model discloses the refrigerator can also be the refrigerator that opens door more, has a body and drawer promptly, opens the function that a body or drawer homoenergetic realized opening the door, and the shell 101 of a body and drawer all is provided with handle groove 1101, and the opening part of handle groove 1101 all is provided with panel 102 to form the handle structure at a body and drawer, can both realize the switching of handle structure at user state and hidden state.

It should be noted that the door assembly structure of the embodiment of the present invention may also be adopted only in the drawer, and the door body adopts other types of handle structures, which is not limited herein.

Referring to fig. 4 and 7, it can be understood that the door assembly of the embodiment of the present invention further includes a first rotating shaft 401, a first connecting member 402, a driving device, a second rotating shaft 403 and a second connecting member 404, the driving device is fixedly installed on the housing 101, and the driving device is used for driving the first rotating shaft 401 to rotate. The second shaft 403 is rotatably connected to the housing 101, and one end of the panel 102 is connected to the first shaft 401 through a first connector 402, and the other end is connected to the second shaft 403 through a second connector 404. Specifically, one end of the first connecting member 402 is fixed relative to the first rotating shaft 401, that is, the first connecting member 402 can rotate along with the first rotating shaft 401, the other end is rotatably connected to the panel 102, and one end of the second connecting member 404 is fixedly connected to the other end and rotatably connected to the panel 102. The housing 101, the first connecting member 402, the panel 102 and the second connecting member 404 form a four-bar linkage, the driving device drives the first rotating shaft 401 to rotate, so as to drive the first connecting member 402 to rotate, one end of the panel 102 connected with the first connecting member 402 also moves along with the first connecting member 402, and drives the panel 102 to move integrally, and then the second connecting member 404 is driven to rotate around the second rotating shaft 403. It is also understood that the first shaft 401 acts as a driving shaft, the first link 402 acts as a driving lever, the housing 101 acts as a frame, the second link 404 acts as a driven lever, and the second shaft 403 acts as a driven shaft.

It can be understood that in the four-bar linkage mechanism, the two ends of the panel 102 move in sequence, which results in the unsmooth movement of the panel 102 and reduces the user experience.

Therefore, referring to fig. 3 and 7, it can be understood that the door assembly of the embodiment of the present invention further includes a synchronization rod 104, a third connector 601 and a fourth connector 301, one end of the synchronization rod 104 is connected to the first rotating shaft 401 through the third connector 601, and the other end of the synchronization rod 104 is connected to the second rotating shaft 403 through the fourth connector 301. Specifically, one end of the third connecting member 601 is fixedly connected to the first rotating shaft 401, and the other end is rotatably connected to the synchronizing bar 104; one end of the fourth connecting member 301 is fixedly connected to the second rotating shaft 403, and the other end is rotatably connected to the synchronization rod 104. Through increasing synchronizing bar 104, third connecting piece 601 and fourth connecting piece 301, third connecting piece 601 and first connecting piece 402 relatively fixed to follow first pivot 401 and rotate together, second connecting piece 404 and fourth connecting piece 301 relatively fixed to follow second pivot 403 and rotate together, make the utility model discloses the door subassembly forms five-bar linkage. The driving device drives the first rotating shaft 401 to rotate, so as to drive the first connecting piece 402 and the third connecting piece 601 to rotate simultaneously, and then drive the synchronizing rod 104 to move, the synchronizing rod 104 drives the fourth connecting piece 301 and the second connecting piece 404 to rotate, and the first connecting piece 402 and the second connecting piece 404 act together to drive the panel 102 to move back and forth in an arc. When the panel 102 is retracted to the innermost side, the hidden handle slot 1101 is exposed, that is, the user can pull the handle slot 1101 to open the door. The links of the five-link structure move simultaneously, not sequentially, so that the panel 102 rotates smoothly.

It should be noted that the connection referred to in the embodiments of the present invention includes direct connection and indirect connection, and the indirect connection refers to connection through an intermediate component. For example, two elements are connected indirectly by virtue of one element first being connected to the intermediate element and then being connected to the other element.

Referring to fig. 7, it can be understood that a notch 701 is provided at an end of the panel 102 close to the second connector 404, and the notch 701 is located at an upper portion of the second connector 404, so that the panel 102 can get out of the second connector 404 during the movement by providing the notch 701, and the movement is smoother. In the up-down direction, the second connector 404 may be disposed closer to the panel 102, so that the overall structure is more compact.

Referring to fig. 7, it can be understood that the second connecting member 404 is connected to the panel 102 through a connecting shaft (not shown), a connecting hole (not shown) is formed in the panel 102, the connecting shaft is inserted into the connecting hole of the panel 102, one end of the connecting shaft is fixed to the second connecting member 404, the other end of the connecting shaft penetrates through the connecting hole and is connected to a locking cover 702, the locking cover 702 is fixed to the connecting shaft through a self-tapping screw, the diameter of the locking cover 702 is greater than that of the connecting hole, so that the connecting shaft cannot be separated from the connecting hole, that is, the locking cover 702 is used for preventing the second connecting member 404 from being separated from the panel 102.

Referring to fig. 7, it can be understood that a notch is formed at a middle position of the end portion of the panel 102 close to the first connecting member 402, one end of the first connecting member 402 is accommodated in the notch, and the upper side and the lower side of the first connecting member 402 are rotatably connected to the panel 102 through the latch, so that the acting force transmitted to the panel 102 by the first connecting member 402 is more uniform, and the installation convenience is improved.

Referring to fig. 1, 3 and 7, it can be understood that the synchronization rod 104 is an injection molded part, and the synchronization rod 104 is provided with a tie bar 105. In order to ensure the strength and rigidity of the plastic product and prevent the wall thickness of the synchronous rod 104 of the plastic product from increasing, the tie bar 105 is arranged at a proper position of the plastic product, so that the deformation of the plastic product can be avoided, and in some cases, the tie bar 105 can also be used as an internal runner of a mold to improve the flowing condition of plastic in the molding of the plastic product. By arranging the tie bars 105 on the injection molding piece, the strength can be improved, and the injection molding is convenient.

Referring to fig. 1 and 2, it can be understood that the housing 101 is an injection molded part, and the tie bars 105 are arranged on the housing 101, so that the strength can be improved, and the injection molding is convenient.

Referring to fig. 1 and 2, it can be understood that the driving device includes the motor 103, a mounting bracket 107 is mounted on the housing 101, and the motor 103 is mounted on the mounting bracket 107, that is, the motor 103 is mounted on the housing 101 through the mounting bracket 107. The housing 101 includes a case 108 and an upper cover 109, the pull groove 1101 and the opening are provided on the case 108, the case 108 surrounds the periphery of the panel 102, and the upper cover 109 is located above the panel 102 and surrounds the panel 102 from the upper side. During assembly, the upper cover 109 is firstly installed above the shell 108, the motor 103 is clamped into the installation frame 107, the installation frame 107 is installed on the upper cover 109, and finally the angle of the motor 103 is adjusted according to the angle shown in fig. 3, so that interference is avoided.

Referring to fig. 7 to 9, it can be understood that the motor 103 is connected to the first rotating shaft 401 through the coupling 106, and one end of the third connecting member 601 is fixedly connected to the coupling 106. The motor 103 rotates to drive the coupler 106 to rotate, and the coupler 106 simultaneously drives the third connecting member 601 and the first rotating shaft 401 to rotate, so that the third connecting member 601 rotates synchronously with the first rotating shaft 401, in other words, one end of the third connecting member 601 is circumferentially relatively fixed with the first rotating shaft 401, the first rotating shaft 401 rotates, and the third connecting member 601 also rotates in the same direction.

Referring to fig. 7, it can be understood that the panel 102 includes a base 703 and a boss 704, the boss 704 is protruded from the base 703, that is, the boss 704 and the base 703 form a step-like structure, the boss 704 is on a side of the base 703 facing an opening, the base 703 is located in the pull-handle slot 1101, and the cross-sectional area of the opening is larger than that of the boss 704, so that the opening can accommodate the boss 704, in other words, the boss 704 can be inserted into the opening. The boss 704 can mate with the opening to provide a locating function.

It is understood that the door assembly of the present invention has two states, respectively defined as a first state and a second state. In the first state, the outer surface of the boss 704 is flush with or smoothly transits to the outer surface of the casing 101, at this time, the panel 102 is in a hidden state, and the outer surface of the panel 102 and the outer surface of the casing 101 tend to be integrated in appearance without obvious protrusions or depressions, so that the refrigerator is neat and attractive in appearance. In the second state, the panel 102 can be retracted into the handle slot 1101, that is, the substrate 703 and the boss 704 are all retracted into the handle slot 1101 to expose the handle slot 1101, and a user can reach into the handle slot 1101 to pull the door or the drawer to open the refrigerator. In the second state, the panel 102 may also protrude out of the handle slot 1101, so that the panel 102 protruding out of the opening can be held by a user, thereby pulling the door body or the drawer to open the refrigerator.

It is understood that the door assembly may further include a detection device for detecting a signal from a user, and controlling the activation of the driving device after detecting the signal from the user, and the detection of the trigger signal includes one of the following: gesture, voice, touch, mechanical key. Through detection device and drive arrangement's cooperation, realize that man-machine is mutual inductance, improve the science and technology of product and feel.

Referring to fig. 5 to 9, it can be understood that the door assembly of the embodiment of the present invention further includes an elastic component, the elastic component includes a compression spring 602, the first rotating shaft 401 is fixedly connected with a swing rod 603, one end of the compression spring 602 is connected to the swing rod 603, and the other end is connected to the housing 101. The compression spring 602 is configured to provide different directional forces to the swing link 603 during the rotation of the first rotating shaft 401, so that the swing link 603 has a tendency to rotate in different directions. Specifically, the housing 101 is provided with a first mounting portion 604, the swing rod 603 is provided with a second mounting portion, and one end of the first compression spring 602 is connected with the first mounting portion 604 and the other end is connected with the second mounting portion. Through setting up pendulum rod 603, can let compression spring 602 produce deformation better to compression spring 602 produces the pendulum rod 603 that deformation acted on, has increased the arm of force and then can increase moment, the effect of reinforcing elasticity.

Referring to fig. 6, it can be appreciated that the door assembly of the present invention is in an initial state, i.e., in the first state, with the outer surface of the boss 704 flush or smoothly transitioning with the outer surface of the housing 101. At this time, a line connecting the first mounting portion 604 and the second mounting portion defines an indication line 607, and a direction of the urging force of the compression spring 602 to the swing lever 603 is located at a rear side of the indication line 607. The force of the compression spring 602 on the rocker 603 at this time causes the first rotating shaft 401 to have a tendency to rotate counterclockwise, thereby holding the panel 102 at the opening.

It can be understood that, when the compression spring 602 of the embodiment of the present invention is in the critical state, the indication line 607 coincides with the turning radius of the swing rod 603, and the acting force of the compression spring 602 on the swing rod 603 at this time does not make the swing rod 603 have a tendency to rotate.

It can be understood that when the compression spring 602 of the embodiment of the present invention is in the completed state, i.e. in the second state, the substrate 703 and the boss 704 are all retracted into the handle slot 1101, exposing the handle slot 1101. At this time, the direction of the force applied to the swing lever 603 by the compression spring 602 is located on the front side of the indication line 607. The force of the compression spring 602 on the rocker 603 causes the rocker 603 to have a tendency to rotate clockwise, thereby maintaining the faceplate 102 in the finished state.

Therefore, the utility model discloses the door subassembly can be at the in-process of opening and closing owing to adopted elastic component, for panel 102 improves the helping hand of motion to can stably keep panel 102 in hidden state or open mode, thereby realize bistable effect.

Referring to fig. 6, it can be understood that the elastic assembly includes a bracket, one end of the bracket is rotatably connected to the first mounting portion 604, the other end of the bracket is rotatably connected to the second mounting portion, and the compression spring 602 is sleeved on the bracket. The support includes goods of furniture for display rather than for use 605 and support piece 606, and support piece 606 is located to compression spring 602 cover, and the one end of support piece 606 is rotated and is connected in the second installation department, and the other end is equipped with the sliding shaft, and goods of furniture for display rather than for use 605 is equipped with shaft hole and arc convex surface, and the shaft hole is worn to locate by the sliding shaft, and first installation department 604 is equipped with arc concave part 1001, arc convex surface and arc concave part 1001 sliding connection. The pendulum 605 and the support 606 are telescopically coupled, that is, the sliding shaft can slide along the shaft hole, the bracket can provide a supporting force for the compression spring 602, so as to prevent the compression spring 602 from being excessively twisted and failing, and the pendulum 605 and the support 606 correspondingly change relative positions during the compression or extension of the compression spring 602, so that the overall length of the bracket is shortened or increased along with the compression spring 602. And, the swing part 605 is pressed on the first mounting part 604 by the elastic force of the compression spring 602, and the swing part 605 is slidably connected with the arc-shaped concave part 1001 of the first mounting part 604 through the arc-shaped convex surface, so that the bracket can rotate along with the first rotating shaft 401 to adjust a proper angle.

It will be appreciated that the pendulum 605 may also be pivotally connected to the housing 101 via a ball-and-socket joint or the like.

It is understood that an extension spring may be used instead of the compression spring 602, and both ends of the extension spring are respectively connected to the first mounting portion 604 and the second mounting portion, and at this time, the second mounting portion is changed from the right side of the first rotating shaft 401 shown in fig. 6 to be disposed on the left side of the first rotating shaft 401, and other structures refer to fig. 6. Of course, the extension spring can be replaced by an elastic element such as a rubber band or an elastic rope, and the structure and the using method are similar.

It is understood that a torsion spring may be used instead of the compression spring 602, and both ends of the compression spring 602 are connected to the first mounting portion 604 and the second mounting portion, respectively, and the positions of the first mounting portion 604 and the second mounting portion can be referred to fig. 6.

Referring to fig. 10 and 11, it can be understood that the door assembly according to the embodiment of the present invention further includes a clutch mechanism for controlling the driving device to be coupled to or decoupled from the first rotating shaft 401. In automatic operation, the clutch mechanism enables the driving device to be in power connection with the first rotating shaft 401, so that the driving device can drive the panel 102 to move, and automatic control is achieved. And when power failure or other emergency occurs, manual operation is needed, at the moment, the clutch mechanism enables the driving device and the panel 102 to be separated, the driving device cannot be influenced by the movement of the panel 102, and the driving devices such as the motor 103 and the like are effectively protected from being damaged. Also, since there is no resistance of the driving means, the force required to push the panel 102 is smaller, thereby making it easier to push the panel 102.

Referring to fig. 11, it can be understood that the clutch mechanism includes a concave part 1001 provided on the coupling 106 and a convex part 1002 connected to the output shaft of the motor 103, the concave part 1001 accommodates the convex part 1002, the notch width of the concave part 1001 is larger than the maximum width of the convex part 1002 in the concave part 1001, so that a rotation gap exists between the concave part 1001 and the convex part 1002, that is, the concave part 1001 and the convex part 1002 are located on the same circle, and the radian of the concave part 1001 is larger than that of the convex part 1002. Due to the rotational clearance, the convex portion 1002 does not contact with the side wall of the concave portion 1001 at a specific position, and thus transmission is not achieved. When one side of the rotational direction of the convex portion 1002 comes into contact with the side wall of the concave portion 1001, the convex portion 1002 and the concave portion 1001 rotate together, thereby achieving transmission.

In the combined structure of the convex portion 1002 and the output shaft of the motor 103, the convex portion 1002 may be designed as a single component and then mounted on the output shaft of the motor 103, or the convex portion 1002 and the output shaft of the motor 103 may be designed to be machined from the same blank. Similarly, the combined structure of the coupling 106 and the recess 1001 may be an integrated structure or a split structure.

It can be understood that, when the door assembly of the embodiment of the present invention is in the initial state, the user pushes the panel 102 from the front of the panel 102, the panel 102 drives the first rotating shaft 401 and the shaft coupler 106 to rotate, and the convex portion 1002 can follow the shaft coupler 106 to rotate along the clockwise direction. At this time, the convex portion 1002 and the concave portion 1001 are in contact with each other on the side away from the rotational direction, and the convex portion 1002 and the concave portion 1001 are not in contact with each other on the side toward the rotational direction, so that the concave portion 1001 does not rotate with the convex portion 1002.

It can be understood that when the door assembly of the embodiment of the present invention is in the intermediate state, since only the convex portion 1002 rotates and the concave portion 1001 remains stationary, both sides of the convex portion 1002 and the concave portion 1001 do not contact, and the coupling 106 rotates without resistance from the motor 103.

It is understood that when the door assembly of the present embodiment is in the finished state, the lower sides of the convex portion 1002 and the concave portion 1001 abut, and the convex portion 1002 and the concave portion 1001 have a large gap therebetween. During the process of returning the door assembly from the finished state to the initial state, the concave part 1001 does not drive the convex part 1002 to rotate, i.e. the coupling 106 rotates without the resistance of the motor 103.

It should be noted that the clutch mechanism can also be replaced by a driven disc, a driving disc and a pressure disc, and the driving device transmits power to the driven disc through the friction action of the contact surfaces of the driving disc and the pressure disc and the driven disc. The separation or engagement of the driving device and the panel 102 is realized by controlling whether the driven disc and the driving disc are engaged or not.

It can be understood that, in the initial state, the clutch mechanism disengages the driving device and the panel 102, and the panel 102 is disengaged from the limitation of the driving device, so that the panel 102 is easy to shake, and a certain deviation occurs, i.e. the position of the panel 102 is difficult to maintain at the opening, resulting in poor hiding effect. Moreover, since the clutch mechanism has a gap, when the panel 102 is pushed, if the force point is far, the transmitted force is small, and the panel may be jammed. By using the compression spring 602 together, the compression spring 602 presses the panel 102 to the opening in the initial state, thereby improving the hiding effect. In addition, since there is no resistance of the driving device and the elastic member provides the assisting force, the force required for pushing the panel 102 is smaller, so that the panel 102 is pushed more easily and the possibility of jamming is reduced.

Referring to fig. 12, it will be appreciated that handle slot 1101 includes a catch slot portion 1102 and an access slot portion 1103, that catch slot portion 1102 is in communication with access slot portion 1103, that the opening is in communication with access slot portion 1103, and that panel 102 is positioned in access slot portion 1103. The movable slot 1103 accommodates the panel 102 to move in an axial direction of the opening, and a hand of a user enters the handle slot 1102 after reaching the opening, so that the door can be pulled.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (10)

1. A door assembly, comprising:

a housing provided with a handle groove having an opening;

the panel is positioned at the opening;

a first rotating shaft;

one end of the first connecting piece is fixedly connected to the first rotating shaft, and the other end of the first connecting piece is rotatably connected to the panel;

the driving device is connected to the shell and drives the first rotating shaft to rotate;

the second rotating shaft is rotatably connected to the shell;

one end of the second connecting piece is fixedly connected to the second rotating shaft, and the other end of the second connecting piece is rotatably connected to the panel;

the swing rod is fixedly connected to the first rotating shaft;

one end of the elastic component is connected with the swing rod, the other end of the elastic component is connected with the shell, and the elastic component comprises an elastic piece;

the door assembly has a first state and a second state, and in the first state, the elastic piece acts on the swing rod to enable the swing rod to have a tendency of rotating around a first rotation direction; in the second state, the elastic piece pushes the swing rod to rotate around a second rotation direction, and the first rotation direction is opposite to the second rotation direction; in the process of switching the first state and the second state, the elastic piece has a critical state, and in the critical state, the acting force direction of the elastic piece acting on the swing rod faces to the rotation center of the swing rod.

2. The door assembly as claimed in claim 1, wherein the housing is provided with a first mounting portion, the swing lever is provided with a second mounting portion, and one end of the elastic member is rotatably coupled to the first mounting portion and the other end thereof is rotatably coupled to the second mounting portion.

3. The door assembly as claimed in claim 2, wherein the elastic member includes a bracket, the bracket includes a swing member and a supporting member, the elastic member is a compression spring and is sleeved on the supporting member, the swing member has an arc-shaped convex surface and an axle hole, one end of the supporting member is rotatably connected to the second mounting portion, the other end of the supporting member has a sliding shaft passing through the axle hole, the first mounting portion has an arc-shaped concave portion, and the arc-shaped convex surface is slidably connected to the arc-shaped concave portion.

4. The door assembly as in claim 1, wherein the panel is notched to clear the second connector.

5. The door assembly as claimed in claim 1, wherein the door assembly comprises a synchronization rod, a third connecting member and a fourth connecting member, wherein one end of the third connecting member is fixedly connected to the first rotating shaft, and the other end thereof is rotatably connected to the synchronization rod; one end of the fourth connecting piece is fixedly connected with the second rotating shaft, and the other end of the fourth connecting piece is rotatably connected with the synchronizing rod.

6. The door assembly as claimed in claim 5, wherein the driving means includes a motor mounted to the housing through a mounting bracket.

7. The door assembly as claimed in claim 6, wherein the motor is coupled to the first rotating shaft through a coupling, and one end of the third connecting member is fixedly coupled to the coupling.

8. The door assembly as claimed in claim 1, wherein the panel includes a base plate and a boss protruding from the base plate, the base plate is disposed in the handle groove, and the boss is capable of passing through the opening.

9. The door assembly as claimed in claim 8, wherein in the first state, an outer surface of the boss is flush or smoothly transitioned with an outer surface of the outer shell; in the second state, the panel is retracted in the handle slot.

10. Refrigerator, characterized in that it comprises a door assembly according to any one of claims 1 to 9.

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