Driving device and refrigerator

Abstract

The utility model discloses a driving device and a refrigerator. The driving device comprises a connecting rod mechanism, a telescopic mechanism and a connecting assembly. The connecting rod mechanism comprises a connecting rod assembly, the connecting rod assembly comprises a first connecting arm, the first connecting arm comprises a first connecting part and second connecting parts arranged at intervals in the direction away from the second connecting arm, the telescopic mechanism comprises a driving rod, and a rotating hole is formed in one end of the driving rod. The connecting assembly comprises a connecting piece, a bolt and a gasket. The connecting piece is fixedly connected with the second connecting part, and the connecting piece is provided with a connecting body protruding out of the second connecting part. And the rotating hole is rotationally matched with the connector. The bolt comprises a screw in threaded connection fit with the connector and a nut fixedly connected with the screw, the nut is in clearance fit with one end of the driving rod in the axis direction of the screw, and the gasket is fixedly connected with the connector and clamped between one end of the driving rod and the nut. The whole driving device is easy to assemble, the assembled driving device is high in structural reliability, and the use experience of a user is facilitated.

Description

Technical Field

[0001] This disclosure relates to the field of household appliance technology, and in particular to a drive device and a refrigerator. Background Technology

[0002] With the development of society and the economy and the improvement of people's living standards, refrigerators have gradually become an indispensable household appliance. As intelligent technology continues to expand into the home appliance field, consumers are increasingly demanding ease of use and intelligent features in their appliances. Automatic door opening and closing, as a fundamental intelligent function of refrigerators, is becoming increasingly widespread.

[0003] In related technologies, a drive device is usually used to realize the automatic opening and closing of the refrigerator door. However, the assembly of the drive device is currently quite complicated, and the overall structural reliability of the assembled drive device is low, which is not conducive to the user experience. Utility Model Content

[0004] In view of this, the present disclosure provides a drive device and a refrigerator. The drive device is simple to assemble and the overall structure of the assembled drive device is highly reliable, which is beneficial to the user experience.

[0005] Specifically, this disclosure is achieved through the following technical solution.

[0006] According to a first aspect of the present disclosure, a driving device is provided, comprising a linkage mechanism, a telescopic mechanism, and a connecting assembly. The linkage mechanism includes a first mounting member fixedly connected to a refrigerator body, a second mounting member fixedly connected to a refrigerator door, and a connecting rod assembly disposed between the first and second mounting members. The second mounting member is oscillating relative to the first mounting member via the connecting rod assembly, thereby allowing the refrigerator to have a closed state and an open state. 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 includes a first connecting portion and a second connecting portion spaced apart in a direction away from the second connecting arm. The first mounting member is hinged to the first connecting arm, the first connecting arm is hinged to the second connecting arm via the first connecting portion, and the second connecting arm is hinged to the second mounting member. The first end and the second end of the first connecting rod are respectively hinged to the first mounting member and the second connecting arm, and the first end and the second end of the second connecting rod are respectively hinged to the first connecting rod and the second mounting member. The telescopic mechanism includes a drive rod capable of telescoping in a predetermined direction, one end of which has a rotating hole. The connecting assembly includes a connector, a bolt, and a washer. The connector is fixedly connected to the second connecting part, and the connector has a connecting body protruding from the second connecting part. A rotating hole rotatably engages with the connecting body to allow the drive rod to be rotatably connected to the connector. The bolt includes a threaded rod that is screwed into the connecting body and a nut fixedly connected to the threaded rod. The nut has a clearance fit with one end of the drive rod along the axial direction of the threaded rod. A washer is fixedly connected to the connecting body and sandwiched between one end of the drive rod and the nut.

[0007] The technical solution disclosed herein will be further explained below.

[0008] In one embodiment, the connecting assembly further includes a limiting member, which is fixedly connected to the connecting body, and one end of the drive rod is clamped between the gasket and the limiting member.

[0009] In one embodiment, the limiting member includes two members, which are respectively disposed on both sides of the second connecting portion. One of the two limiting members is detachably and fixedly connected to the connecting body, while the other is integrally formed with the connecting body.

[0010] In one embodiment, the connector is a non-cylinder, and the limiting member and the gasket are respectively provided with non-circular holes adapted to the non-cylinder. The non-cylinder and the non-circular holes cooperate to make the connector detachably and fixedly connected to the limiting member and the gasket respectively.

[0011] In one embodiment, the connector is provided with an internal threaded hole, and the connector is screwed and fixed to the screw through the internal threaded hole.

[0012] In one embodiment, the connecting assembly further includes an anti-loosening washer disposed on the connecting body and located between the second connecting portion and the nut.

[0013] In one embodiment, the second connecting part is provided with a mounting hole, and the connector passes through the mounting hole and is interference-fitted with the mounting hole so that the connector is fixedly connected to the second connecting part.

[0014] In one embodiment, the connector is welded to the second connecting portion.

[0015] In one embodiment, the first connecting arm has a protrusion that protrudes away from the second connecting arm, the second connecting portion is disposed on the protrusion, and a lever arm is formed between the second connecting portion and the first connecting portion.

[0016] According to a second aspect of the present disclosure, a refrigerator is provided, comprising a door, a body, a control device, and a drive device as described in any of the above embodiments. A first mounting member is fixedly connected to the body, and a second mounting member is fixedly connected to the door, so that the door rotates relative to the body to open or close the body. The control device is communicatively connected to the drive device and is capable of controlling the drive device to open or close the body.

[0017] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0018] When assembling the drive unit, the linkage mechanism and the telescopic mechanism are assembled. The drive rod of the telescopic mechanism is connected to the second connecting part of the first connecting arm via a connecting assembly. A connecting piece is fixedly connected to the second connecting part, and a limiting piece is fixedly connected to a connecting body protruding from the second connecting part. The drive rod rotates with the connecting body through a rotating hole, enabling the drive unit to automatically open or close the refrigerator. This assembly method is simple and improves the reliability of the connection between the drive rod and the connecting piece. The connecting piece is screwed to the second connecting part, facilitating installation and disassembly. A gasket is fixedly connected to the connecting body, clamping one end of the drive rod between the gasket and the nut to prevent the drive rod from detaching from the connecting body. This drive unit assembly method is simple and easy to implement, improving the manufacturing efficiency of the drive unit. Furthermore, the drive rod contacts the gasket, not directly the nut, preventing the bolt from loosening during automatic opening or closing, thus improving the overall reliability of the assembled drive unit and enhancing the user experience.

[0019] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0020] The accompanying drawings, which form part of this disclosure, are used to provide a further understanding of this disclosure. The illustrative embodiments of this disclosure and their descriptions are used to explain this disclosure and do not constitute an undue limitation of this disclosure.

[0021] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a refrigerator according to one embodiment.

[0023] Figure 2 for Figure 1 The diagram shows the structural schematic of the refrigerator's drive mechanism.

[0024] Figure 3 for Figure 1 The diagram shows the structural schematic of the refrigerator's drive mechanism.

[0025] Figure 4 for Figure 2 A partially enlarged schematic diagram of the drive device shown.

[0026] Figure 5 for Figure 3A partial structural schematic diagram of the drive device is shown.

[0027] Figure 6 for Figure 3 A partial structural schematic diagram of the drive device is shown.

[0028] Figure 7 for Figure 2 A partial structural schematic diagram of the drive device is shown.

[0029] Figure 8 for Figure 2 The diagram shows the structure of the bolts in the drive unit.

[0030] Figure 9 for Figure 1 The diagram shows the structural schematic of the refrigerator's drive mechanism.

[0031] Figure 10 for Figure 9 The shown is a cross-sectional view of the drive unit.

[0032] Figure 11 for Figure 10 A partially enlarged schematic diagram of the drive device shown.

[0033] Figure 12 The diagram shown is a structural schematic of the telescopic mechanism in one embodiment.

[0034] Explanation of the reference numerals in the attached figures.

[0035] 1. Refrigerator; 10. Door; 20. Cabinet; 30. Control device; 40. Drive device; 41. Linkage mechanism; 411. First mounting component; 412. Second mounting component; 413. Linkage assembly; 4131. First connecting arm; 4132. Second connecting arm; 4133. First link; 4134. Second link; 42. Telescopic mechanism; 4210. Bearing component; 4211. Connecting notch; 4220. Motor; 4221. Output end; 423. 0. Telescopic component; 4231. Rotating component; 4232. Telescopic component; 4233. First lead screw; 4234. Nut; 4240. Drive rod; 4241. Rotating hole; 43. Connecting component; 431. Connecting component; 4311. Connecting body; 432. Bolt; 4321. Screw; 4322. Nut; 433. Limiting component; 434. Washer; 401. First connecting part; 402. Second connecting part; 403. Mounting hole; 404. Protrusion. Detailed Implementation

[0036] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0037] If the embodiments of this application contain terms relating to directional indications or positional relationships (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 relationships and movements between components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0038] With the development of society and the economy and the improvement of people's living standards, refrigerators have gradually become an indispensable household appliance. As intelligent technology continues to expand into the home appliance field, consumers are increasingly demanding ease of use and intelligent features in their appliances. Automatic door opening and closing, as a fundamental intelligent function of refrigerators, is becoming increasingly widespread.

[0039] In related technologies, a drive device is usually used to realize the automatic opening and closing of the refrigerator door. However, the assembly of the drive device is currently quite complicated, and the overall structural reliability of the assembled drive device is low, which is not conducive to the user experience.

[0040] Therefore, it is necessary to provide a drive device and a refrigerator, which is simple to assemble and can improve the manufacturing efficiency of the drive device, thereby improving the manufacturing efficiency of the refrigerator.

[0041] To better understand the driving device of this application, a refrigerator in which the driving device is applied will be used as an example.

[0042] like Figure 1 As shown, in some embodiments, refrigerator 1 includes a door 10, a cabinet 20, a control device 30, and a drive device 40. The door 10 is connected to the cabinet 20 via the drive device 40. The control device 30 is communicatively connected to the drive device 40 and can control the drive device 40 to open or close the door 10 or the cabinet 20. Thus, the control device 30 controls the drive device 40 to open or close the door 10, thereby achieving automatic door opening and closing. This improves the overall intelligence of refrigerator 1 and enhances the user experience.

[0043] It should be noted that the drive unit 40 can be installed on the door 10 or on the body 20.

[0044] like Figures 2 to 8As shown, in some embodiments, the drive device 40 includes a linkage mechanism 41, a telescopic mechanism 42, and a connecting assembly 43. The linkage mechanism 41 includes a first mounting member 411 fixedly connected to the cabinet 20, a second mounting member 412 fixedly connected to the cabinet door 10, and a connecting rod assembly 413 disposed between the first mounting member 411 and the second mounting member 412. The second mounting member 412 can swing relative to the first mounting member 411 via the connecting rod assembly 413, so that the refrigerator 1 has a closed state and an open state. The connecting rod 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 connecting arm 4131 includes a first connecting portion 401 and a second connecting portion 402 spaced apart in a direction away from the second connecting arm 4132. A first mounting member 411 is hinged to the first connecting arm 4131, the first connecting arm 4131 is hinged to the second connecting arm 4132 via the first connecting portion 401, and the second connecting arm 4132 is hinged to the second mounting member 412. The first and second ends of the first connecting rod 4133 are respectively hinged to the first mounting member 411 and the second connecting arm 4132, and the first and second ends of the second connecting rod 4134 are respectively hinged to the first connecting rod 4133 and the second mounting member 412. The telescopic mechanism 42 includes a drive rod 4240 capable of telescopic movement in a set direction, with a rotating hole 4241 at one end. The connecting assembly 43 includes a connector 431, a bolt 432, and a washer 434. The connector 431 is fixedly connected to the second connecting portion 402, and the connector 431 has a connecting body 4311 protruding from the second connecting portion 402. The rotating hole 4241 is rotatably engaged with the connecting body 4311 so that the drive rod 4240 is rotatably connected to the connector 431. The bolt 432 includes a screw 4321 that is screwed into the connecting body 4311 and a nut 4322 that is fixedly connected to the screw 4321. The nut 4322 is clearance-fitted with one end of the drive rod 4240 along the axial direction of the screw 4321. The washer 434 is fixedly connected to the connecting body 4311 and is sandwiched between one end of the drive rod 4240 and the nut 4322.

[0045] Thus, when the drive device 40 is assembled, the linkage mechanism 41 and the telescopic mechanism 42 are assembled. The drive rod 4240 of the telescopic mechanism 42 is connected to the second connecting part 402 of the first connecting arm 4131 through the connecting component 43. The connecting piece 431 is fixedly connected to the second connecting part 402, and the limiting piece 433 is fixedly connected to the connecting body 4311 protruding from the second connecting part 402. The drive rod 4240 rotates with the connecting body 4311 through the rotating hole 4241, so that the gasket 434 does not rotate with the drive rod 4240. This enables the drive device 40 to automatically open or close the refrigerator 1. This assembly method is simple and can improve the connection reliability between the drive rod 4240 and the connecting piece 431. The connecting piece 431 is screwed to the second connecting part 402, which facilitates installation and disassembly. The gasket 434 is fixedly connected to the connector 4311, so that the gasket 434 is sandwiched between one end of the drive rod 4240 and the nut 4322, thereby preventing the drive rod 4240 from detaching from the connector 4311. This drive device 40 has a simple assembly method, is easy to implement, and is beneficial to improving the manufacturing efficiency of the drive device 40. Moreover, since the drive rod 4240 contacts the gasket 434 but not directly the nut 4322, when the drive device 40 automatically opens or closes the door, the drive rod 4240 will not loosen the bolt 432 during movement, preventing the bolt 432 from falling off. This improves the overall reliability of the assembled drive device 40 structure and enhances the user experience.

[0046] When the user automatically opens or closes the refrigerator 1, the drive rod 4240 extends and retracts along a set direction. The drive rod 4240 is rotatably connected to the first connecting arm 4131, causing relative movement between the first mounting member 411 and the second mounting member 412. During 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 force applied by the drive rod 4240. This causes 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. At the same time, it causes 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 opening or closing the refrigerator 1.

[0047] It should be noted that there are several ways to implement bolt 432, including fastening screws, etc.

[0048] It should be noted that the specific implementation of the power source used to enable the drive rod 4240 to extend and retract in a set direction can be in various ways, including motor 4220 drive, hydraulic drive, and cylinder drive, etc.

[0049] like Figures 9 to 11As shown, in some embodiments, the connecting assembly 43 further includes a limiting member 433, which is fixedly connected to the connecting body 4311, and one end of the driving rod 4240 is clamped between the gasket 434 and the limiting member 433. Thus, when the driving rod 4240 of the telescopic mechanism 42 extends or retracts in a set direction, the driving rod 4240 drives the second mounting member 412 to swing relative to the first mounting member 411, thereby automatically opening or closing the refrigerator 1. When automatically opening or closing the refrigerator 1, the driving rod 4240 contacts the limiting member 433 but does not directly contact the second connecting part 402. During the movement of the driving rod 4240, it only causes wear on the limiting member 433, avoiding wear on the second connecting part 402. When the driving rod 4240 causes wear on the limiting member 433, the limiting member 433 or the connecting member 431 can be directly replaced. The driving device 40 using this hinge can reduce maintenance costs, thereby reducing the maintenance costs of the refrigerator 1.

[0050] like Figures 9 to 11 As shown, in some embodiments, the limiting member 433 includes two members, which are respectively disposed on both sides of the second connecting portion 402. One of the two limiting members 433 is detachably fixedly connected to the connecting body 4311, and the other is integrally formed with the connecting body 4311. Thus, by disposing the two limiting members 433 on both sides of the second connecting portion 402, the connecting member 431 is fixedly connected to the second connecting portion 402. This improves the connection reliability between the drive rod 4240 and the second connecting portion 402. The integral forming of the limiting member 433 and the connecting member 431 can reduce assembly steps and improve the assembly efficiency of the drive device 40. When the connecting member 431 is installed to the second connecting portion 402, the limiting member 433 integrally formed with the connecting body 4311 first abuts against the second connecting portion 402 and is located on one side of the second connecting portion 402. Then, the other limiting member 433 is connected to the connecting body 4311 and is located on the other side of the second connecting portion 402. This installation method is simple, and disassembly is also convenient.

[0051] like Figure 7 As shown, in some embodiments, the connector 4311 is a non-cylinder, and the limiting member 433 and the gasket 434 are respectively provided with non-circular holes adapted to the non-cylinder. The non-cylinder engages with the non-circular holes to allow the connector 4311 to be detachably and fixedly connected to the limiting member 433 and the gasket 434 respectively. Thus, by setting the connector 4311 as a non-cylinder and providing the limiting member 433 with non-circular holes adapted to the non-cylinder, the method of fixing the connector 4311 to the limiting member 433 through the engagement of the non-cylinder with the non-circular holes is easy to implement and facilitates installation and disassembly.

[0052] Specifically, the shape of the connector 4311 can be a polygonal prism such as a triangular prism or a quadrangular prism, or a non-circular prism such as an elliptical prism or a plum blossom prism. It can also be a semi-cylinder or a partially cylindrical 2 / 3 cylinder. Non-circular holes include partially circular holes, polygonal holes, and elliptical holes. This allows for a detachable and fixed connection between the connector 4311 and the limiting member 433.

[0053] like Figure 11 As shown, in some embodiments, the connector 4311 is provided with an internal threaded hole, and the connector 4311 is screwed and fixed to the screw rod 4321 through the internal threaded hole. In this way, the screw fixing method is simple, easy to implement, and convenient for disassembly and installation.

[0054] In some embodiments, the connecting assembly 43 further includes an anti-loosening washer (not shown), which is disposed on the connecting body 4311 and located between the second connecting portion 402 and the nut 4322. Thus, by providing an anti-loosening washer on the connecting body 4311, the reliability of the drive rod 4240 connected to the second connecting portion 402 is further improved, thereby enhancing the overall reliability of the drive device 40 structure.

[0055] It should be noted that there are various ways to implement the material of the anti-loosening gasket, including but not limited to elastic materials such as silicone and rubber.

[0056] like Figure 6 as well as Figure 7 As shown, in some embodiments, the second connecting portion 402 is provided with a mounting hole 403, and the connector 431 passes through the mounting hole 403 and is interference-fitted with the mounting hole 403 to fix the connector 431 to the second connecting portion 402. Thus, by providing a rotation hole 4241 in the second connecting portion 402 and interfering with the mounting hole 403 to achieve a fixed connection between the connector 431 and the second connecting portion 402, the assembly method is simple and can improve the reliability of the fixed connection between the connector 431 and the second connecting portion 402.

[0057] It should be noted that there are various ways to achieve the fixed connection between the connector 431 and the second connecting part 402, including welding, bonding, etc.

[0058] like Figure 6 as well as Figure 7 As shown, in some embodiments, the connector 431 is welded to the second connecting portion 402. This welding method is simple, easy to implement, and provides good fixation.

[0059] like Figure 5 as well as Figure 6As shown, in some embodiments, the first connecting arm 4131 is provided with a protrusion 404 protruding away from the second connecting arm 4132, and the second connecting portion 402 is disposed on the protrusion 404, forming a lever arm between the second connecting portion 402 and the first connecting portion 401. Thus, by providing a protrusion 404 protruding away from the second connecting arm 4132 on the first connecting arm 4131 and disposing of the second connecting portion 402 on the protrusion 404, during the process of the drive rod 4240 driving the first connecting arm 4131 and the second connecting arm 4132 through the second connecting portion 402, the lever arm formed between the first connecting portion 401 and the second connecting portion 402 further reduces the force required for the drive rod 4240 to drive the first connecting arm 4131 and the second connecting arm 4132, reducing the power requirements of the power source of the telescopic mechanism 42. This helps to reduce the manufacturing cost of the drive device 40, thereby reducing the manufacturing cost of the refrigerator 1. In addition, the drive rod 4240 is directly connected to the first connecting arm 4131, which helps to improve the assembly efficiency of the drive device 40.

[0060] like Figure 3 As shown, in some embodiments, the telescopic mechanism 42 further includes a support member 4210, a motor 4220 disposed on the support member 4210, and a telescopic assembly 4230. The support member 4210 is provided with a connection notch 4211. The telescopic assembly 4230 includes a telescopic member 4232. The motor 4220 is driven to the telescopic assembly 4230 to drive the telescopic member 4232 to move towards or away from the connection notch 4211. A drive rod 4240 is connected to the telescopic member 4232, and the drive rod 4240 passes through the connection notch 4211 and is rotatably connected to the second connecting portion 402. Thus, when the user automatically opens or closes the refrigerator door 10, the motor 4220, through its drive connection with the telescopic assembly 4230, drives the telescopic member 4232 to move towards or away from the connection notch 4211, thereby driving the drive rod 4240 to move. The drive rod 4240 passes through the connection notch 4211 and is rotatably connected to the first mounting member 411. The bearing member 4210 is fixedly connected to the door 10 to fix the telescopic mechanism 42 to the door 10, so that the drive rod 4240 can drive the second mounting member 412 to swing relative to the first mounting member 411 to realize the automatic opening or closing of the door 10.

[0061] Understandably, the drive rod 4240 is connected to the telescopic member 4232, and the telescopic member 4232 drives the drive rod 4240 to telescopically move in a set direction by moving toward or away from the connection notch 4211.

[0062] like Figure 3 as well as Figure 12As shown, in some embodiments, the telescopic assembly 4230 further includes a rotating member 4231 rotatably disposed on the support member 4210, and the rotating member 4231 is connected to the telescopic member 4232 in a transmission engagement. The motor 4220 includes an output end 4221, which is connected to the rotating member 4231 in a transmission engagement to drive the telescopic member 4232 to move toward or away from the connection notch 4211. Thus, when the user automatically opens or closes the refrigerator door 10, the motor 4220 drives the rotating member 4231, causing the rotating member 4231 to rotate and transmit power with the telescopic member 4232, causing the telescopic member 4232 of the telescopic assembly 4230 to move toward or away from the connection notch 4211. 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, realizing the automatic opening or closing of the refrigerator door 10.

[0063] It should be noted that the telescopic component 4232 moves towards or away from the connecting notch 4211. Figure 12 The X direction is shown.

[0064] It should be noted that the "rotating component 4231 and output end 4221 transmission connection" can be directly connected to achieve a transmission connection, or they can be connected through a transmission mechanism. A direct connection can be a detachable fixed connection or a non-detachable fixed connection, as long as power transmission is achieved. Methods such as socketing, snap-fitting, integral molding, and welding are feasible and can be flexibly selected according to actual application needs. For example, one component may have a non-cylindrical part, and the other component may have a mating hole for transmission with the non-cylindrical part. Non-cylindrical parts include polygonal cylinders, elliptical cylinders, semi-cylindrical parts, etc.

[0065] In one embodiment, the rotating part 4231 of the telescopic component 4230 can be integrally formed with the output end 4221 (such as the output shaft) of the motor 4220, or the rotating part 4231 of the telescopic component 4230 can be rigidly fixed with the output end 4221 (such as the output shaft) of the motor 4220 by a key.

[0066] In embodiments of this application, the rotating part 4231 of the telescopic assembly 4230 and the output end 4221 of the motor 4220 are configured to be detachable. This facilitates maintenance of the drive device 40.

[0067] like Figure 12As shown, in some embodiments, the rotating member 4231 includes a first lead screw 4233, and the telescopic member 4232 includes a nut 4234 that is threadedly engaged with the first lead screw 4233. The output end 4221 is fixedly connected to the first lead screw 4233, and the first lead screw 4233 can be rotated by the output end 4221. The nut 4234 is slidably connected to the bearing member 4210. Thus, when the user automatically opens or closes the refrigerator door 10, the output end 4221 is fixedly connected to the first lead screw 4233, causing the output end 4221 to drive the first lead screw 4233 to rotate. The telescopic member 4232 includes a nut 4234 that can be threadedly engaged with the first lead screw 4233, and the nut 4234 and the bearing member 4210 are slidably connected, allowing the telescopic member 4232 to move towards or away from the connection notch 4211. 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, thus realizing the automatic opening or closing of the refrigerator door 10.

[0068] It should be noted that the technical solutions or 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 should be included within the scope of protection of this application.

Claims

1. A driving device applied to a refrigerator, the refrigerator comprising a cabinet and a door rotatably connected to the cabinet, characterized in that, The driving device includes: A linkage mechanism includes a first mounting member fixedly connected to the cabinet body, a second mounting member fixedly connected to the cabinet door, and a linkage assembly disposed between the first mounting member and the second mounting member. The second mounting member can swing relative to the first mounting member through the linkage assembly to allow the refrigerator to have a closed state and an open state. The linkage assembly includes a first connecting arm, a second connecting arm, a first connecting rod, and a second connecting rod. The first connecting arm includes a first connecting portion and a second connecting portion spaced apart in a direction away from the second connecting arm. The first mounting member is hinged to the first connecting arm, the first connecting arm is hinged to the second connecting arm through the first connecting portion, and the second connecting arm is hinged to the second mounting member. The first end and the second end of the first connecting rod are respectively hinged to the first mounting member and the second connecting arm, and the first end and the second end of the second connecting rod are respectively hinged to the first connecting rod and the second mounting member. A telescopic mechanism includes a drive rod capable of extending and retracting in a predetermined direction, one end of which has a rotating hole; and A connecting assembly includes a connector, a bolt, and a washer; the connector is fixedly connected to the second connecting portion, and the connector has a connecting body protruding from the second connecting portion; the rotating hole is rotatably engaged with the connecting body to allow the drive rod to be rotatably connected to the connector; the bolt includes a screw threadedly engaged with the connecting body and a nut fixedly connected to the screw thread, the nut being clearance-fitted with one end of the drive rod along the axial direction of the screw thread; the washer is fixedly connected to the connecting body and sandwiched between one end of the drive rod and the nut.

2. The driving device according to claim 1, characterized in that, The connecting assembly further includes a limiting member, which is fixedly connected to the connecting body, and one end of the driving rod is clamped between the gasket and the limiting member.

3. The driving device according to claim 2, characterized in that, The limiting member includes two, which are respectively disposed on both sides of the second connecting part; one of the two limiting members is detachably and fixedly connected to the connecting body, and the other is integrally formed with the connecting body.

4. The driving device according to claim 3, characterized in that, The connecting body is a non-cylinder, and the limiting member and the gasket are respectively provided with non-circular holes adapted to the non-cylinder. The non-cylinder cooperates with the non-circular holes so that the connecting body is detachably and fixedly connected to the limiting member and the gasket respectively.

5. The driving device according to claim 1, characterized in that, The connector is provided with an internal threaded hole, and the connector is screwed and fixed to the screw through the internal threaded hole.

6. The driving device according to claim 1, characterized in that, The connecting assembly further includes an anti-loosening washer disposed on the connecting body and located between the second connecting portion and the nut.

7. The driving device according to claim 1, characterized in that, The second connecting part is provided with a mounting hole, and the connector passes through the mounting hole and is interference-fitted with the mounting hole so that the connector is fixedly connected to the second connecting part.

8. The driving device according to claim 1, characterized in that, The connector is welded and fixed to the second connecting part.

9. The driving device according to claim 1, characterized in that, The first connecting arm has a protrusion that protrudes away from the second connecting arm, the second connecting portion is disposed on the protrusion, and a lever arm is formed between the second connecting portion and the first connecting portion.

10. A refrigerator, characterized in that, The device includes a door, a housing, a control device, and a drive device as described in any one of claims 1 to 9. The first mounting member is fixedly connected to the housing, and the second mounting member is fixedly connected to the door, so that the door rotates relative to the housing to open or close the housing. The control device is communicatively connected to the drive device and is capable of controlling the drive device to open or close the housing.

Images