Driving device and refrigerator

Abstract

The utility model discloses a driving device and a refrigerator. The driving device comprises a connecting rod mechanism and a telescopic mechanism. The connecting rod mechanism comprises a first installation part fixedly connected with the box body, a second installation part fixedly connected with the box door and a connecting rod assembly arranged between the first installation part and the second installation part. The connecting rod assembly comprises a first connecting arm, a second connecting arm, a first connecting rod and a second connecting rod. The first installation piece is hinged to the first connecting arm, the first connecting arm is hinged to the second connecting arm through a rotating shaft, and the second connecting arm is hinged to the second installation piece. The head end and the tail end of the first connecting rod are hinged to the first mounting piece and the second connecting arm respectively, and the head end and the tail end of the second connecting rod are hinged to the first connecting rod and the second mounting piece respectively. The telescopic mechanism comprises a driving rod capable of stretching out and drawing back in the set direction, and the driving rod is rotationally connected with the first connecting arm. The driving device is used for driving the second mounting part to swing relative to the first mounting part, so that the driving device can be switched between a closed state and an open state.

Description

Technical Field

[0001] The present disclosure relates to the technical field of household appliances, and in particular to a driving device and a refrigerator. Background Art

[0002] With the development of society and the improvement of people's living standards, refrigerators have gradually become an indispensable household appliance in people's daily lives. As intelligent technology continues to expand into the home appliance field, consumers are increasingly demanding ease of use and intelligent features in their home appliance experience. As a basic function of refrigerator intelligence, automatic door opening and closing is also becoming increasingly widely used.

[0003] In the related art, a driving device is usually used to realize automatic opening and closing of the refrigerator door. However, the current driving device is difficult to install, which is not conducive to the user experience. Utility Model Content

[0004] In view of this, the present disclosure provides a refrigerator that can improve the convenience of assembling a driving device to the refrigerator, which is conducive to improving the user experience.

[0005] Specifically, the present disclosure is achieved through the following technical solutions.

[0006] According to a first aspect of an embodiment of the present disclosure, a drive device is provided for use in a refrigerator. The refrigerator includes a refrigerator body and a door rotatably connected to the refrigerator body. The drive device includes a connecting rod mechanism and a telescopic mechanism. The connecting rod mechanism includes a first mounting member fixedly connected to the refrigerator body, a second mounting member fixedly connected to the door, and a connecting rod assembly disposed between the first and second mounting members. The second mounting member is capable of swinging relative to the first mounting member via the connecting rod assembly, so that the drive device has a closed state in which the door closes the refrigerator body and an open state in which the door opens the refrigerator body. The connecting rod assembly includes a first connecting arm, a second connecting arm, a first connecting rod, and a second connecting rod. The first connecting arm is hinged to the first connecting arm, the first connecting arm is hinged to the second connecting arm via a rotating shaft, and the second connecting arm is hinged to the second mounting member. The first connecting rod has a head end and a tail end hinged to the first connecting rod and the tail end, respectively. The telescopic mechanism includes a drive rod capable of extending and retracting along a set direction, the drive rod being rotatably connected to the first connecting arm. The second mounting member is driven to swing relative to the first mounting member, so that the driving device can be switched between a closed state and an open state.

[0007] The technical solution of the present disclosure is further described below.

[0008] In one embodiment, the first connecting arm includes a first rotating portion rotatably connected to the second connecting arm and a second rotating portion rotatably connected to the driving rod, and the first rotating portion and the second rotating portion are spaced apart in a direction away from the second connecting arm.

[0009] In one embodiment, the first connecting arm is provided with a protrusion protruding in a direction away from the second connecting arm, the second rotating portion is provided on the protrusion, and a force arm is formed between the second rotating portion and the first rotating portion.

[0010] In one embodiment, the telescopic mechanism further includes a connecting member, one end of which is fixedly connected to the driving rod, and the other end of which is rotatably connected to the connecting rod assembly via a rotating shaft.

[0011] In one embodiment, the telescopic mechanism further includes a supporting member, a motor mounted on the supporting member, and a telescopic assembly. The supporting member is provided with a connection notch. The telescopic assembly includes a telescopic member, and the motor is in transmission connection with the telescopic assembly to drive the telescopic member toward or away from the connection notch. A drive rod is connected to the telescopic member and extends through the connection notch to be rotationally connected to the first mounting member.

[0012] In one embodiment, the telescopic assembly further comprises a rotating member rotatably disposed on the supporting member, the rotating member being in driving engagement with the telescopic member, and the motor comprising an output end that is in driving engagement with the rotating member to drive the telescopic member toward or away from the connection notch.

[0013] In one embodiment, the rotating member includes a first screw rod, the telescopic member includes a nut threadedly engaged with the first screw rod, the output end is fixedly connected to the first screw rod, and the first screw rod can be driven to rotate by the output end, and the nut is slidably connected to the bearing member.

[0014] In one embodiment, the driving rod further includes a driving end connected to the telescopic member, a connecting end connected to the first connecting arm, and a rod body arranged between the driving end and the connecting end, and the rod body is provided with an avoidance groove to avoid the first screw rod.

[0015] In one embodiment, the supporting member includes a first end and a second end arranged opposite to the first end, the motor is arranged at the first end, the telescopic assembly is arranged between the output end and the second end, and the second end is provided with a connecting gap.

[0016] In one embodiment, the drive device further includes a clutch having a transmission state and a disengagement state, and the motor is connected to the rotating member via the clutch. When the clutch is in the transmission state, the motor drives the rotating member to rotate via the clutch, thereby driving the drive rod to move via the telescopic member. When the clutch is in the disengagement state, the motor is disconnected from the telescopic assembly.

[0017] In one of the embodiments, the clutch comprises a driving member in transmission connection with the output end, a driven member in transmission connection with the rotating member, and a clutch member arranged between the driving member and the driven member. The driven member comprises an output portion in transmission connection with the rotating member and a matching portion fixedly connected with the output portion, and the driving member is in transmission connection with the clutch member to drive the clutch member to move relative to the matching portion.

[0018] When the clutch is in the transmission state, the clutch member is in transmission cooperation with the matching portion. When the clutch is in the separation state, the clutch member is separated from the matching portion.

[0019] In one of the embodiments, the linkage assembly further comprises a resilient member, a bracket, and a cam. One end of the resilient member is hingedly connected with the first connecting arm, and the other end of the resilient member is connected with the bracket. The cam is rotatably connected with the second connecting arm through a rotating shaft. The bracket is provided with a roller, and the roller abuts against the cam, so that the bracket can move along the contour of the cam.

[0020] According to a second aspect of the embodiments of the present disclosure, a refrigerator is provided, which comprises a door, a cabinet, a control device, and the driving device in any of the above embodiments. The first mounting member is fixedly connected with the cabinet, and the second mounting member is fixedly connected with the door, so that the door rotates relative to the cabinet to open or close the cabinet. The control device is in communication connection with the driving device and can control the driving device to open or close the cabinet.

[0021] The technical solutions provided by the embodiments of the present disclosure can have the following beneficial effects:

[0022] When the driving device is installed to the refrigerator, the first mounting member of the driving device is fixedly connected with the cabinet, and the second mounting member of the driving device is fixedly connected with the door, so that the driving device is installed to the refrigerator. The second mounting member of the driving device can swing relative to the first mounting member through the linkage assembly, and the first mounting member and the second mounting member are respectively fixedly connected with the cabinet and the door, so that the driving device has a closing state in which the door closes the cabinet and an opening state in which the door opens the cabinet. When the user automatically opens or closes the refrigerator, the driving rod of the telescopic mechanism can be telescoped in a set direction, and the driving rod is rotatably connected with the first connecting arm, so that the second mounting member swings relative to the first mounting member, thereby realizing automatic opening or closing of the refrigerator. The driving device is respectively fixedly connected with the cabinet and the door through the first mounting member and the second mounting member, so that the driving device is assembled to the refrigerator, thereby improving the assembly convenience of the driving device.

[0023] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0024] BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which constitute a part of the present disclosure, are used to provide a further understanding of the present disclosure. The exemplary embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation to the present disclosure.

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0026] Figure 1 FIG1 is a schematic diagram of a partial structure of a refrigerator shown in an embodiment.

[0027] Figure 2 for Figure 1 Schematic diagram of the structure of the driving device of the refrigerator shown.

[0028] Figure 3 for Figure 1 Schematic diagram of the structure of the driving device of the refrigerator shown.

[0029] Figure 4 for Figure 1 Schematic diagram of the structure of the driving device of the refrigerator shown.

[0030] Figure 5 for Figure 1 Schematic diagram of the structure of the driving device of the refrigerator shown.

[0031] Figure 6 for Figure 1 Schematic diagram of the structure of the driving device of the refrigerator shown.

[0032] Figure 7 for Figure 1 Schematic diagram of the structure of the driving device of the refrigerator shown.

[0033] Figure 8 Schematic diagram of the structure of a connecting rod mechanism shown in one embodiment.

[0034] Figure 9 Schematic diagram of the structure of a connecting rod mechanism shown in one embodiment.

[0035] Figure 10 FIG. 4 is a cross-sectional view of a driving device shown in an embodiment.

[0036] Figure 11 Schematic diagram of the structure of a telescopic mechanism shown in one embodiment.

[0037] Figure 12 FIG1 is a structural diagram of a telescopic mechanism according to an embodiment.

[0038] Figure 13 Schematic diagram of the structure of a connecting rod mechanism shown in one embodiment.

[0039] Figure 14 Schematic diagram of the structure of a connecting rod mechanism shown in one embodiment.

[0040] Figure 15 Schematic diagram of the structure of a clutch according to an embodiment.

[0041] Figure 16 for Figure 15 The front view structural diagram of the clutch shown.

[0042] Figure 17 for Figure 16 The cross-sectional structure diagram of the clutch is shown.

[0043] Figure 18 1 is a schematic structural diagram of a refrigerator shown in an embodiment.

[0044] Figure 19 for Figure 18 The refrigerator shown is a half-section view of BB.

[0045] Figure 20 for Figure 18 The refrigeration principle diagram of the refrigerator shown.

[0046] Description of the accompanying drawings.

[0047] 1. Refrigerator; 10. Door; 20. Cabinet; 21. Freezer; 22. Refrigerator; 23. Air duct; 30. Control device; 40. Drive device; 41. Connecting rod mechanism; 411. First mounting member; 412. Second mounting member; 413. Connecting rod assembly; 4131. First connecting arm; 4132. Second connecting arm; 4133. First connecting rod; 4134. Second connecting rod; 4135. Elastic member; 4136. Bracket; 4137. Cam; 4138. Roller; 42. Telescopic mechanism; 4210. Carrying member; 4211. First end; 4212. Second end; 4213. Connecting notch; 4220. Motor; 4221. Output end; 4230. Telescopic mechanism Retraction assembly; 4231, rotating part; 4232, telescopic part; 4233, first screw rod; 4234, nut; 4235, driving gear; 4236, driven rack; 4240, driving rod; 4241, connecting end; 4242, driving end; 4243, rod body; 4250, connecting part; 43, clutch; 431, driving part; 432, driven part; 4321, output part; 4322, matching part; 433, clutch part; 401, first rotating part; 402, second rotating part; 403, avoidance groove; 404, nut; 405, second screw rod; 406, protrusion; 50, compressor; 60, condenser; 70, evaporator; 80, throttling assembly. DETAILED DESCRIPTION

[0048] Here, the technical solutions in the embodiments (or "implementations") of the present application will be clearly and completely described in conjunction with the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0049] If there are terms related to directional indications or positional relationships in the embodiments of this application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, height, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship, movement, etc. between the components in a specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first" and "second" in the embodiments of this application are only used for the purpose of convenience of description and should not be understood as indicating or implying relative importance.

[0050] With the development of society and the improvement of people's living standards, refrigerators have gradually become an indispensable household appliance in people's daily lives. As intelligent technology continues to expand into the home appliance field, consumers are increasingly demanding ease of use and intelligent features in their home appliance experience. As a basic function of refrigerator intelligence, automatic door opening and closing is also becoming increasingly widely used.

[0051] In the related art, a driving device is usually used to realize automatic opening and closing of the refrigerator door. However, the current driving device is difficult to install, which is not conducive to the user experience.

[0052] Based on this, it is necessary to provide a driving device 40 that can improve the convenience of assembling the driving device 40 to the refrigerator 1, which is conducive to improving the user experience.

[0053] In order to better understand the driving device 40 of the present application, the refrigerator 1 using the driving device 40 is used for explanation.

[0054] like Figure 1 As shown, in some embodiments, a refrigerator 1 includes a door 10, a housing 20, a control device 30, and a drive device 40. The door 10 is connected to the housing 20 via the drive device 40. The control device 30 is in communication with the drive device 40 and can control the drive device 40 to drive the door 10 to open or close the housing 20. In this way, the control device 30 controls the drive device 40 to drive the door 10 to open or close the housing 20, thereby achieving automatic door opening and closing. This can improve the overall intelligence of the refrigerator 1 and enhance the user experience.

[0055] It should be noted that the driving device 40 can be provided on the box door 10 or on the box body 20 .

[0056] like Figures 2 to 9 As shown, in some embodiments, the drive device 40 includes a linkage mechanism 41 and a telescopic mechanism 42. The linkage mechanism 41 includes a first mounting member 411 fixedly connected to the housing 20, a second mounting member 412 fixedly connected to the door 10, and a linkage assembly 413 disposed between the first and second mounting members 411, 412. The second mounting member 412 can swing relative to the first mounting member 411 via the linkage assembly 413, so that the drive device 40 can have a closed state in which the door 10 closes the housing 20, and an open state in which the door 10 opens the housing 20. The linkage assembly 413 includes a first connecting arm 4131, a second connecting arm 4132, a first connecting rod 4133, and a second connecting rod 4134. The first mounting member 411 is hingedly connected to the first connecting arm 4131, which is hingedly connected to the second connecting arm 4132 via a rotating shaft, and the second connecting arm 4132 is hingedly connected to the second mounting member 412. The first connecting rod 4133 is hinged at its head and tail to the first mounting member 411 and the second connecting arm 4132, respectively. The second connecting rod 4134 is hinged at its head and tail to the first connecting rod 4133 and the second mounting member 412, respectively. The telescopic mechanism 42 includes a drive rod 4240 capable of telescoping in a set direction. The drive rod 4240 is rotatably connected to the first connecting arm 4131, thereby driving the second mounting member 412 to swing relative to the first mounting member 411, thereby switching the drive device 40 between a closed state and an open state.

[0057] Thus, when the drive device 40 is mounted on the refrigerator 1, the first mounting member 411 of the drive device 40 is fixedly connected to the housing 20, and the second mounting member 412 of the drive device 40 is fixedly connected to the door 10, thereby mounting the drive device 40 on the refrigerator 1. The second mounting member 412 of the drive device 40 is capable of swinging relative to the first mounting member 411 via the connecting rod assembly 413. The first mounting member 411 and the second mounting member 412 are respectively fixedly connected to the housing 20 and the door 10, so that the drive device 40 has a closed state in which the door 10 closes the housing 20 and an open state in which the door 10 opens the housing 20. When the user automatically opens or closes the refrigerator 1, the drive rod 4240 of the telescopic mechanism 42 is capable of extending and retracting in a set direction. The drive rod 4240 is rotatably connected to the first connecting arm 4131, thereby driving the second mounting member 412 to swing relative to the first mounting member 411, thereby automatically opening or closing the refrigerator 1. The driving device 40 is fixedly connected to the cabinet body 20 and the cabinet door 10 through the first mounting member 411 and the second mounting member 412 respectively, so that the driving device 40 is assembled to the refrigerator 1, thereby improving the assembly convenience of the driving device 40.

[0058] When the user automatically opens or closes the refrigerator 1, the driving rod 4240 extends and retracts along the set direction, and the driving rod 4240 is rotatably connected to the first connecting arm 4131, so that the first mounting member 411 and the second mounting member 412 move relative to each other. In this process, the first connecting arm 4131, the second connecting arm 4132, the first connecting rod 4133 and the second connecting rod 4134 can rotate relative to each other under the action of the force applied by the driving rod 4240, so as to drive the first connecting arm 4131 and the second connecting arm 4132 to open outward or fold inward between the first mounting member 411 and the second mounting member 412, and at the same time drive the first connecting rod 4133 and the second connecting rod 4134 to open outward or fold inward between the first mounting member 411 and the second mounting member 412, thereby realizing opening or closing the refrigerator 1.

[0059] like Figure 2 As shown, in some embodiments, the driving rod 4240 is hinged to the first connecting arm 4131. Thus, when the driving device 40 automatically opens or closes the refrigerator 1, the force generated by the driving rod 4240 directly acts on the first connecting arm 4131, which can reduce the force required by the driving rod 4240 to drive the first connecting arm 4131, thereby reducing the power requirement for the power source of the telescopic mechanism 42, thereby reducing the manufacturing cost of the driving device 40 and thus reducing the manufacturing cost of the refrigerator 1.

[0060] like Figure 4 、 Figure 5 as well as Figure 8 As shown, in some embodiments, the first connecting arm 4131 includes a first rotating portion 401 rotatably connected to the second connecting arm 4132 and a second rotating portion 402 rotatably connected to the driving rod 4240. The first rotating portion 401 and the second rotating portion 402 are spaced apart in a direction away from the second connecting arm 4132. Thus, when a user automatically opens or closes the refrigerator 1, the driving rod 4240 extends and retracts along a set direction. The driving rod 4240 drives the first connecting arm 4131 to move via the second rotating portion 402, and the first connecting arm 4131 drives the second connecting arm 4132 to move via the first rotating portion 401. This drives the first connecting arm 4131 and the second connecting arm 4132 to open outward or fold inward between the first mounting member 411 and the second mounting member 412, and simultaneously drives the first connecting rod 4133 and the second connecting rod 4134 to open outward or fold inward between the first mounting member 411 and the second mounting member 412, thereby automatically opening or closing the refrigerator 1.

[0061] like Figure 8 as well as Figure 9As shown, in some embodiments, the first connecting arm 4131 is provided with a protrusion 406 protruding away from the second connecting arm 4132, the second rotating portion 402 is disposed on the protrusion 406, and a moment arm is formed between the second rotating portion 402 and the first rotating portion 401. Thus, by providing the protrusion 406 protruding away from the second connecting arm 4132 on the first connecting arm 4131 and disposing the second rotating portion 402 on the protrusion 406, when the driving rod 4240 drives the first connecting arm 4131 and the second connecting arm 4132 via the second rotating portion 402, the moment arm formed between the first rotating portion 401 and the second rotating portion 402 is utilized. This further reduces the force required by the driving rod 4240 to drive the first connecting arm 4131 and the second connecting arm 4132, thereby lowering the power requirement on the power source of the telescopic mechanism 42, thereby facilitating a reduction in the manufacturing cost of the driving device 40, and thereby reducing the manufacturing cost of the refrigerator 1. In addition, the driving rod 4240 is directly connected to the first connecting arm 4131 , which is beneficial to improving the assembly efficiency of the driving device 40 .

[0062] like Figure 7 As shown, in some embodiments, the telescopic mechanism 42 further includes a connector 4250, one end of which is fixedly connected to the drive rod 4240, and the other end of which is rotatably connected to the connecting rod assembly 413 via a rotating shaft. In this way, when the user automatically opens or closes the refrigerator 1, the drive rod 4240 is extended and retracted along a set direction, with one end of the connector 4250 fixedly connected to the drive rod 4240 and the other end of the connector 4250 being rotatably connected to the connecting rod assembly 413 via the rotating shaft, so that the drive rod 4240 is connected to the connecting rod assembly 413 via the connector 4250. The first connecting arm 4131 and the second connecting arm 4132 are hingedly connected via a rotating shaft, allowing the driving rod 4240 to drive the first connecting arm 4131 and the second connecting arm 4132 via the rotating shaft, causing the first connecting arm 4131 and the second connecting arm 4132 to open outward or fold inward between the first mounting member 411 and the second mounting member 412. This simultaneously drives the first connecting rod 4133 and the second connecting rod 4134 to open outward or fold inward between the first mounting member 411 and the second mounting member 412, thereby automatically opening or closing the refrigerator 1. The driving rod 4240 is indirectly connected to the connecting rod assembly 413 via the connecting member 4250, which facilitates increased flexibility in the connection between the driving rod 4240 and the connecting rod assembly 413.

[0063] It should be noted that there are many specific ways to implement the power source used by the driving rod 4240 to move telescopically along the set direction, including motor 4220 drive, hydraulic drive, cylinder drive, etc.

[0064] like Figures 4 to 7As shown, in some embodiments, the telescopic mechanism 42 further includes a carrier 4210, a motor 4220 disposed on the carrier 4210, and a telescopic assembly 4230, wherein the carrier 4210 is provided with a connection notch 4213. The telescopic assembly 4230 includes a telescopic member 4232, and the motor 4220 is in transmission connection with the telescopic assembly 4230 to drive the telescopic member 4232 to move toward or away from the connection notch 4213. A drive rod 4240 is connected to the telescopic member 4232, and the drive rod 4240 passes through the connection notch 4213 and is rotationally connected to the first mounting member 411. In this way, when a user automatically opens or closes the door 10 of the refrigerator 1, the motor 4220 is in transmission connection with the telescopic assembly 4230 to drive the telescopic member 4232 to move toward or away from the connection notch 4213, thereby driving the drive rod 4240 to move. The driving rod 4240 is rotatably connected to the first mounting member 411 through the connecting notch 4213, and the supporting member 4210 is fixedly connected to the box door 10 to fix the telescopic mechanism 42 to the box door 10, so that the driving rod 4240 can drive the second mounting member 412 to swing relative to the first mounting member 411 to realize automatic opening or closing of the box door 10.

[0065] It should be noted that the telescopic member 4232 moves toward or away from the connection notch 4213. Figure 4 The X direction is shown.

[0066] It can be understood that the driving rod 4240 is connected to the telescopic member 4232, and the telescopic member 4232 drives the driving rod 4240 to move telescopically along a set direction by moving toward or away from the connecting notch 4213.

[0067] It should be noted that the drive rod 4240 is hinged to the connecting rod mechanism 41, which can reduce the force required for the drive rod 4240 to drive the connecting rod mechanism 41 to move, so that the motor 4220 of the drive device 40 can be selected with smaller power, thereby reducing the manufacturing cost of the drive device 40.

[0068] like Figures 4 to 7As shown, in some embodiments, the telescopic assembly 4230 further includes a rotating member 4231 rotatably disposed on the carrier 4210, and the rotating member 4231 is in transmission connection with the telescopic member 4232. The motor 4220 includes an output end 4221, which is in transmission connection with the rotating member 4231 to drive the telescopic member 4232 to move toward or away from the connection gap 4213. In this way, when the user automatically opens or closes the door 10 of the refrigerator 1, the motor 4220 drives the rotating member 4231, causing the rotating member 4231 to rotate and transmit power to the telescopic member 4232, so that the telescopic member 4232 of the telescopic assembly 4230 moves toward or away from the connection gap 4213. The telescopic member 4232 drives the drive rod 4240 to move, thereby driving the second mounting member 412 to swing relative to the first mounting member 411, thereby automatically opening or closing the door 10.

[0069] It should be noted that the "rotating member 4231 and the output end 4221 are in transmission connection" can be directly connected to achieve transmission connection, or they can be connected through a transmission mechanism to achieve transmission connection. Direct connection is a detachable fixed connection, or it can be a non-detachable fixed connection that can achieve power transmission, such as socket connection, snap connection, one-piece molding fixation, welding, etc., which can be achieved in traditional technologies and can be flexibly selected according to actual application needs. For example, one of the components is provided with a non-cylindrical body, and the other component is provided with a matching hole for transmission cooperation with the non-cylindrical body. Non-cylindrical bodies include polygonal cylinders, elliptical cylinders, semi-cylinders, etc.

[0070] In one embodiment, the rotating member 4231 of the telescopic assembly 4230 can be integrally formed with the output end 4221 (such as the output shaft) of the motor 4220, or the rotating member 4231 of the telescopic assembly 4230 can be rigidly fixed to the output end 4221 (such as the output shaft) of the motor 4220 using a pin key.

[0071] In the embodiment of the present application, the rotating member 4231 of the telescopic assembly 4230 and the output end 4221 of the motor 4220 are configured to be detachable, thereby facilitating maintenance of the driving device 40 .

[0072] like Figures 4 to 7As shown, in some embodiments, the carrier 4210 includes a first end 4211 and a second end 4212 disposed opposite the first end 4211. The motor 4220 is disposed at the first end 4211, and the telescopic assembly 4230 is disposed between the output end 4221 and the second end 4212. The second end 4212 is provided with a connection notch 4213. Thus, by disposing the motor 4220 at the first end 4211 of the carrier 4210 and the telescopic assembly 4230 between the output end 4221 and the second end of the motor 4220, the output end 4221 of the motor 4220 can drive the rotating member 4231, thereby moving the telescopic member 4232 toward or away from the connection notch 4213. Furthermore, the connection notch 4213 is provided at the second end 4212, and the drive rod 4240 is connected to the telescopic member 4232 and rotatably connected to the first mounting member 411 through the connection notch 4213, thereby enabling the drive device 40 to automatically open or close the refrigerator 1. This arrangement can make the structure of the driving device 40 compact, which is beneficial to reducing the overall size of the driving device 40 and reducing the space it occupies in the refrigerator 1.

[0073] like Figure 10 As shown, in some embodiments, the rotating member 4231 includes a first screw rod 4233, and the telescopic member 4232 includes a nut 4234 that is threadably engaged with the first screw rod 4233. The output end 4221 is fixedly connected to the first screw rod 4233, and the first screw rod 4233 can be driven to rotate by the output end 4221. The nut 4234 is slidably connected to the supporting member 4210. In this way, when the user automatically opens or closes the door 10 of the refrigerator 1, the output end 4221 is fixedly connected to the first screw rod 4233, so that the output end 4221 drives the first screw rod 4233 to rotate, and the telescopic member 4232 includes a nut 4234 that can be threadedly engaged with the first screw rod 4233, and the nut 4234 and the supporting member 4210 are slidingly connected, so that the telescopic member 4232 can move toward or away from the connecting notch 4213, and the telescopic member 4232 drives the driving rod 4240 to move, thereby driving the second mounting member 412 to swing relative to the first mounting member 411, thereby realizing automatic opening or closing of the door 10.

[0074] like Figure 6 as well as Figure 7As shown, in some embodiments, the driving rod 4240 also includes a driving end 4242 connected to the telescopic member 4232, a connecting end 4241 connected to the first connecting arm 4131, and a rod body 4243 arranged between the driving end 4242 and the connecting end 4241, and the rod body 4243 is provided with an avoidance groove 403 to avoid the first screw rod 4233. In this way, when the user automatically opens the door 10, the nut 4234 will telescope along the first screw rod 4233, and the driving rod 4240 is connected to the telescopic part 4232. The driving rod 4240 will telescope along the set direction through the driving end 4242, so that the second mounting part 412 can swing relative to the first mounting part 411, and the driving rod 4240 is movably connected to the first mounting part 411. By providing an avoidance groove 403 on the rod body 4243, when the door 10 is automatically opened or closed, the driving rod 4240 can avoid the first screw rod 4233 through the avoidance groove 403, thereby avoiding movement interference between the driving rod 4240 and the first screw rod 4233.

[0075] like Figure 11 As shown, in other embodiments, the rotating member 4231 includes a driving gear 4235, the telescopic member 4232 includes a driven rack 4236 meshing with the driving gear 4235, the driving gear 4235 is fixedly connected to the output end 4221, and the driving gear 4235 can be driven to rotate by the output end 4221, the driven rack 4236 is fixedly connected to the telescopic member 4232, and the driving gear 4235 meshes and cooperates with the driven rack 4236. In this way, when the user automatically opens or closes the door 10, the motor 4220 is operated, and its output end 4221 drives the driving gear 4235 to rotate, and the driven rack 4236 meshes and cooperates with the driving gear 4235, thereby driving the driven gear to reciprocate along the supporting member 4210. The driven rack 4236 is fixedly connected to the telescopic member 4232, driving the telescopic member 4232 to move toward or away from the connecting notch 4213. The telescopic member 4232 drives the driving rod 4240 to move, thereby driving the second mounting member 412 to swing relative to the first mounting member 411, thereby realizing automatic opening or closing of the box door 10.

[0076] like Figure 12As shown, in other embodiments, the rotating member 4231 includes a nut 404, the telescopic assembly 4230 includes a second screw rod 405 threadedly engaged with the nut 404, the nut 404 is fixedly connected to the output end 4221, and the nut 404 can be driven to rotate by the output end 4221, the second screw rod 405 is fixedly connected to the telescopic member 4232, the second screw rod 405 is threadedly engaged with the nut 404, and the supporting member 4210 abuts against the telescopic member 4232 to limit the rotation of the telescopic member 4232. In this way, when the user automatically opens or closes the door 10, the output end 4221 of the motor 4220 is fixedly connected to the nut 404, so that the output end 4221 drives the nut 404 to rotate, and the nut 404 is threadedly matched with the second screw rod 405, and the second screw rod 405 is fixedly connected to the telescopic member 4232. The supporting member 4210 is abutted against the telescopic member 4232 to limit the rotation of the telescopic member 4232, so that the telescopic member 4232 can move toward or away from the connecting notch 4213 under the rotation of the nut 404, and the telescopic member 4232 drives the drive rod 4240 to move, thereby driving the second mounting member 412 to swing relative to the first mounting member 411, thereby realizing automatic opening or closing of the door 10.

[0077] like Figure 13 as well as Figure 14 As shown, in some embodiments, the connecting rod assembly 413 further includes an elastic member 4135, a bracket 4136, and a cam 4137. One end of the elastic member 4135 is hinged to the first connecting arm 4131, and the other end is connected to the bracket 4136. The cam 4137 is rotatably connected to the second connecting arm 4132 via a rotating shaft. The bracket 4136 is provided with a roller 4138, which abuts the cam 4137, allowing the bracket 4136 to move along the contour of the cam 4137. Thus, when a user automatically opens or closes the refrigerator 1, the first connecting arm 4131 opens outward or folds inward between the first mounting member 411 and the second mounting member 412. Under the elastic action of the elastic member 4135, the cam 4137 slides in contact with the roller 4138, generating a rotational force arm, causing the bracket 4136 to move along the contour of the cam 4137, thereby automatically opening or closing the refrigerator 1. This method can improve the smoothness of the opening or closing process of the refrigerator 1 and enhance the user experience of automatically opening or closing the refrigerator 1.

[0078] In some embodiments, the elastic member 4135 includes a spring and a support member, the spring is sleeved on the support member, the support member is hinged to the first connecting arm 4131 , and the spring abuts against the bracket 4136 .

[0079] like Figure 3 、 Figure 4 as well as Figure 15As shown, in some embodiments, the drive device 40 further includes a clutch 43, which has a transmission state and a disengagement state. The motor 4220 is in transmission connection with the rotating member 4231 via the clutch 43. When the clutch 43 is in the transmission state, the motor 4220 drives the rotating member 4231 to rotate via the clutch 43, thereby driving the drive rod 4240 to move via the telescopic member 4232. When the clutch 43 is in the disengagement state, the motor 4220 is disconnected from the telescopic member 4230. Thus, when the user automatically opens or closes the door 10, the clutch 43 is in the transmission state, the motor 4220 drives the rotating member 4231 to rotate via the clutch 43, and the rotating member 4231 is in transmission connection with the telescopic member 4232, so that the telescopic member 4232 drives the drive rod 4240 to move, thereby automatically opening or closing the refrigerator 1. When the user chooses to manually open or close the refrigerator 1, the clutch 43 is in the disengagement state, and the motor 4220 is disconnected from the telescopic member 4230, allowing the user to easily manually open or close the refrigerator 1. By providing the clutch 43 on the driving device 40 , the user can choose to open and close the refrigerator 1 automatically or manually, which is beneficial to improving the user experience.

[0080] like Figures 15 to 17As shown, in some embodiments, the clutch 43 includes an active member 431 transmission-connected to the output end 4221, a driven member 432 transmission-connected to the rotating member 4231, and a clutch member 433 disposed between the active member 431 and the driven member 432. The driven member 432 includes an output portion 4321 transmission-connected to the rotating member 4231 and a mating portion 4322 fixedly connected to the output portion 4321. The active member 431 is transmission-connected to the clutch member 433 to drive the clutch member 433 to move relative to the mating portion 4322. When the clutch 43 is in a transmission state, the clutch member 433 is transmission-coupled with the mating portion 4322. When the clutch 43 is in a disengaged state, the clutch member 433 is separated from the mating portion 4322. Thus, when the user automatically opens or closes the door 10, the clutch 43 is in a transmission state, the clutch member 433 is in transmission engagement with the mating portion 4322, and the output end 4221 of the motor 4220 is in transmission connection with the active member 431 of the clutch 43, thereby driving the active member 431 to rotate. The active member 431 is in transmission connection with the clutch member 433, causing the active member 431 to drive the clutch member 433. When the clutch 43 is in a transmission state, the clutch member 433 is in transmission engagement with the mating portion 4322, thereby driving the mating portion 4322. The mating portion 4322 then drives the output portion 4321 of the driven member 432, thereby driving the rotating member 4231 to rotate. The rotating member 4231 is in transmission connection with the telescopic member 4232, causing the telescopic member 4232 to drive the drive rod 4240 to move, thereby achieving automatic opening or closing of the refrigerator 1. When the user chooses to manually open or close the refrigerator 1, the clutch 43 is in a disengaged state, and the clutch member 433 is separated from the matching portion 4322. The active member 431 is disconnected from the driven member 432, and the user can easily manually open or close the refrigerator 1.

[0081] like Figures 18 to 20 As shown, in some embodiments, the refrigerator 1 further includes a compressor 50, a condenser 60, an evaporator 70, and a throttling assembly 80. The housing 20 further includes a freezer compartment 21 and a refrigerator compartment 22. The compressor 50, the condenser 60, the evaporator 70, and the throttling assembly 80 are respectively disposed in the housing 20, and at least a portion of the evaporator 70 is disposed in the freezer compartment 21.

[0082] Combine Figure 20As shown, when the refrigerator 1 is in operation, the compressor 50 outputs high-temperature, high-pressure gaseous refrigerant to the condenser 60, where it is condensed into medium-temperature, high-pressure refrigerant. The medium-temperature, high-pressure refrigerant undergoes expansion and throttling by the throttling assembly 80, further reducing its pressure and temperature. It then flows out of the throttling assembly 80 as a low-temperature, low-pressure liquid refrigerant to the evaporator 70. The low-temperature, low-pressure liquid refrigerant evaporates into a gaseous refrigerant within the evaporator 70. At least a portion of the evaporator 70 is located within the freezer compartment 21, allowing the refrigerant to absorb a significant amount of heat from the freezer compartment 21 during evaporation, thereby lowering the temperature within the freezer compartment 21 and facilitating the use of the freezer compartment 21 to freeze items, thereby achieving refrigeration in the refrigerator 1. The refrigerant exiting the evaporator 70 is then fed back to the compressor 50, forming a refrigerant circuit. In this manner, the refrigerant continuously circulates within the refrigerant circuit to maintain a refrigerated environment (e.g., below -1°C) within the freezer compartment 21.

[0083] In some embodiments, an air duct 23 is provided between the refrigeration compartment 22 and the freezer compartment 21 to facilitate the transfer of part of the cold air from the freezer compartment 21 to the refrigeration compartment 22 through the air duct 23 to reduce or maintain the low temperature environment of the refrigeration compartment 22 (for example, 2°C to 8°C).

[0084] In some embodiments, the freezer compartment 21 is positioned below the refrigerator compartment 22 along the height of the refrigerator 1. The refrigerator 1 further includes a first fan (not labeled) disposed within the housing 20. The first fan's air inlet or outlet is connected to the air duct 23, thereby transferring some of the cold air from the freezer compartment 21 to the refrigerator compartment 22.

[0085] like Figure 19 As shown, the height direction of the refrigerator 1 is the Z-axis direction.

[0086] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application shall be included in the scope of protection of this application.

Claims

1. A driving device, applied to a refrigerator, comprising a refrigerator body and a door rotatably connected to the refrigerator body, characterized in that: The driving device comprises: The linkage mechanism comprises a first mounting member fixedly connected to the box body, a second mounting member fixedly connected to the box door, and a linkage assembly arranged between the first mounting member and the second mounting member, the second mounting member being capable of swinging relative to the first mounting member through the linkage assembly, so that the driving device has a closed state in which the box door closes the box body and an open state in which the box door opens the box body; the linkage assembly comprises a first connecting arm, a second connecting arm, a first connecting rod and a second connecting rod; the first mounting member is hinged to the first connecting arm, the first connecting arm is hinged to the second connecting arm via a rotating shaft, and the second connecting arm is hinged to the second mounting member; the head end and the tail end of the first connecting rod are hinged to the first mounting member and the second connecting arm respectively, and the head end and the tail end of the second connecting rod are hinged to the first connecting rod and the second mounting member respectively; and A telescopic mechanism includes a drive rod capable of extending and retracting along a set direction, wherein the drive rod is rotatably connected to the first connecting arm; to drive the second mounting member to swing relative to the first mounting member, so that the drive device can switch between the closed state and the open state.

2. The driving device according to claim 1, characterized in that The first connecting arm includes a first rotating portion rotatably connected to the second connecting arm and a second rotating portion rotatably connected to the driving rod. The first rotating portion and the second rotating portion are spaced apart in a direction away from the second connecting arm.

3. The driving device according to claim 2, characterized in that The first connecting arm is provided with a protrusion protruding in a direction away from the second connecting arm. The second rotating portion is arranged on the protrusion, and a force arm is formed between the second rotating portion and the first rotating portion.

4. The driving device according to claim 1, characterized in that The telescopic mechanism further comprises a connecting member, one end of which is fixedly connected to the driving rod, and the other end of which is rotatably connected to the connecting rod assembly via the rotating shaft.

5. The driving device according to claim 1, characterized in that The telescopic mechanism also includes a bearing member, a motor arranged on the bearing member, and a telescopic assembly, the bearing member is provided with a connecting notch; the telescopic assembly includes a telescopic member, the motor is transmission-connected to the telescopic assembly to drive the telescopic member to move toward or away from the connecting notch; the drive rod is connected to the telescopic member, and the drive rod passes through the connecting notch and is rotatably connected to the first mounting member.

6. The driving device according to claim 5, characterized in that The telescopic assembly also includes a rotating member rotatably arranged on the supporting member, and the rotating member is transmission-coordinatedly connected to the telescopic member; the motor includes an output end, and the output end is transmission-connected to the rotating member to drive the telescopic member to move toward or away from the connection gap.

7. The driving device according to claim 6, characterized in that The rotating member includes a first screw rod, and the telescopic member includes a nut that is threadedly coupled to the first screw rod; the output end is fixedly connected to the first screw rod, and the first screw rod can be driven to rotate by the output end, and the nut is slidably connected to the supporting member.

8. The driving device according to claim 7, characterized in that The driving rod also includes a driving end connected to the telescopic member, a connecting end connected to the first connecting arm, and a rod body arranged between the driving end and the connecting end. The rod body is provided with an avoidance groove to avoid the first screw rod.

9. The driving device according to claim 6, characterized in that The bearing member includes a first end and a second end opposite to the first end. The motor is arranged at the first end. The telescopic assembly is arranged between the output end and the second end. The second end is provided with the connecting gap.

10. The driving device according to claim 6, characterized in that The driving device also includes a clutch, which has a transmission state and a disengagement state. The motor is connected to the rotating member through the clutch. When the clutch is in the transmission state, the motor drives the rotating member to rotate through the clutch to drive the driving rod to move through the telescopic member. When the clutch is in the disengagement state, the motor is disconnected from the telescopic assembly.

11. The driving device according to claim 10, characterized in that: The clutch comprises an active member transmission-connected to the output end, a driven member transmission-connected to the rotating member, and a clutch member disposed between the active member and the driven member; the driven member comprises an output portion transmission-connected to the rotating member and a mating portion fixedly connected to the output portion; the active member is transmission-connected to the clutch member to drive the clutch member to move relative to the mating portion; When the clutch is in a transmission state, the clutch member is in transmission engagement with the mating portion; when the clutch is in a disengagement state, the clutch member is separated from the mating portion.

12. The driving device according to claim 1, characterized in that The connecting rod assembly also includes an elastic member, a bracket, and a cam, one end of the elastic member is hinged to the first connecting arm, and the other end is connected to the bracket; the cam is rotatably connected to the second connecting arm via the rotating shaft; the bracket is provided with a roller, and the roller abuts against the cam so that the bracket can move along the contour of the cam.

13. A refrigerator, characterized in that: It comprises a box door, a box body, a control device and the driving device according to any one of claims 1 to 12, wherein the first mounting member is fixedly connected to the box body, and the second mounting member is fixedly connected to the box door, so that the box door can be rotated relative to the box body to open or close the box body; the control device is communicatively connected to the driving device and can control the driving device to open or close the box body.

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