CN217841170U - 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 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; one end of the third connecting piece is circumferentially and relatively fixed with the first rotating shaft, and the other end of the third connecting piece is rotatably connected with the synchronizing rod; one end of the fourth connecting piece is fixedly connected to the second rotating shaft, and the other end of the fourth connecting piece is rotatably connected to the synchronizing rod. Five-bar linkage is constituteed to first pivot, first connecting piece, panel, second connecting piece, second pivot, synchronizing bar, and drive arrangement drives first pivot and rotates, and five-bar linkage drive panel motion simultaneously from the both ends of panel for the panel motion is smooth-going, and can show out the handle groove and regard as the attacker position.

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, and the handles are generally visible handles arranged on the door body and are mostly fixed and non-movable structures. The matching structure of the handle and the door body is poor, 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, a hidden handle design is adopted in the related art. For example, a groove is provided on the door body, the handle panel is disposed in the groove, and the handle panel is driven to move telescopically by an electric mechanism. However, the handle panel does not move smoothly enough.

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 make the panel motion steady.

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, a synchronizing rod, a third connecting member, and a fourth connecting member, wherein the housing 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 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; one end of the third connecting piece is circumferentially fixed relative to the first rotating shaft, and the other end of the third connecting piece is rotatably connected to the synchronizing 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 the utility model discloses door subassembly has following beneficial effect at least: five-bar linkage is constituteed to first pivot, first connecting piece, panel, second connecting piece, second pivot, synchronizing bar, and drive arrangement drives first pivot and rotates, and five-bar linkage drive panel motion simultaneously from the both ends of panel for the panel motion is smooth-going, and can show out the handle groove and regard as detaining the hand position, convenience of customers pulling.

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

According to some embodiments of the utility model, the second connecting piece pass through the connecting axle connect in the panel, the connecting axle is worn to locate the panel, connecting axle one end is fixed in the second connecting piece, the other end are fixed with the locking lid through self tapping screw, the locking lid is used for preventing the second connecting piece breaks away from the panel.

According to some embodiments of the present invention, the end of the panel is provided with a receiving portion the notch of the first connecting member, the upper and lower sides of the first connecting member are rotatably connected to the panel through the bolt.

According to some embodiments of the utility model, the synchronizing bar is the injection molding to be equipped with the lacing wire.

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

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, the door assembly has a first state in which an outer surface of the boss is flush with or smoothly transitioned to an outer surface of the housing; in the second state, the panel is retracted in the handle slot.

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 can be so that the panel motion is smooth-going to can show out the handle groove as detaining the hand position, convenience of customers stimulates the door body or the drawer of refrigerator.

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:

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 swing; 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 the 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 functions 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 orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less 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 words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with 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 door 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 in 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 casing 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 rotary shaft 401 serves as a driving shaft, the first link 402 serves as a driving lever, the housing 101 serves as a frame, the second link 404 serves as a driven lever, and the second rotary shaft 403 serves as a driven shaft.

It can be appreciated that in the four-bar linkage, the two ends of the panel 102 move in sequence, which results in the movement of the panel 102 being not smooth, and the user experience is reduced.

Therefore, referring to fig. 3 and 7, it can be understood that the door assembly according to 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 synchronization rod 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 in a front-back 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 formed at one 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 escape from 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 increase of the wall thickness of the synchronous rod 104 of the plastic product, 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 flow passage 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 casing 101 is an injection molded part, and the tie bars 105 are arranged on the casing 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 a motor 103, a mounting bracket 107 is mounted on the housing 101, and the motor 103 is mounted on the mounting bracket 107, i.e. 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 mounting frame 107, the mounting 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-shaped structure, the boss 704 is on a side of the base 703 facing the 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 penetrate through the opening. The boss 704 can cooperate with the opening to provide a locating function.

It is understood that the door assembly of the present invention has two states, defined as a first state and a second state, respectively. 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 man-machine 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 different directions of rotation. 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 elastic force.

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 appreciated 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 pull slot 1101, exposing the pull 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 swing portion 605 and the supporting portion 606 are telescopically connected, 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 during the compression or extension of the compression spring 602, the swing portion 605 and the supporting portion 606 correspondingly change relative positions, 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 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. When power failure or other emergency situations occur, manual operation is needed, at the moment, the clutch mechanism enables the driving device to be separated from the panel 102, the driving device cannot be affected by movement of the panel 102, and the driving devices such as the motor 103 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. Since there is a rotational gap, 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 performed. 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 plate, a driving plate and a pressure plate, and the driving device transmits power to the driven plate through the friction action of the contact surfaces of the driving plate and the pressure plate and the driven plate. The separation or engagement of the driving device and the panel 102 is realized by controlling whether the driven disk and the driving disk 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 offset 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 phenomenon of locking may occur. By using the compression spring 602 together, the compression spring 602 presses the panel 102 against the opening in the initial state, thereby improving the hiding effect. In addition, because there is no resistance of the driving device and the elastic element provides assistance, 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 slot 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;

a synchronization rod;

one end of the third connecting piece is circumferentially fixed relative to the first rotating shaft, and the other end of the third connecting piece is rotatably connected to the synchronizing rod;

and 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.

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

3. The door assembly as claimed in claim 1, wherein the second connecting member is connected to the panel through a connecting shaft, the connecting shaft is inserted into the panel, one end of the connecting shaft is fixed to the second connecting member, and the other end thereof is fixed with a locking cover through a self-tapping screw, the locking cover being used for preventing the second connecting member from being separated from the panel.

4. The door assembly as claimed in claim 1, wherein the panel has a recess at an end thereof for receiving a portion of the first connecting member, and the first connecting member is pivotally connected to the panel at upper and lower sides thereof by a latch.

5. The door assembly as in claim 1, wherein the synchronizing bar is an injection molded piece and is provided with a tie bar.

6. The door assembly as claimed in claim 1, 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 in claim 8, wherein the door assembly has a first state in which an outer surface of the boss is flush or smoothly transitioned with an outer surface of the housing; 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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