Clutch component, transmission device, box equipment and refrigerator

Abstract

The utility model discloses a clutch component, a transmission device, box equipment and a refrigerator. The clutch component comprises a driven piece and a clutch motor. The driven piece comprises an output part and a matching part connected with the output part; the clutch motor comprises a motor body and a rotating shaft at least partially exposed out of the motor body, the rotating shaft can move in the rotating axis direction of the rotating shaft and has a transmission state in transmission fit with the matching part and a separation state separated from the matching part, and the rotating shaft can reset to the separation state; when the clutch motor outputs power, the rotating shaft extends to a transmission state and drives the driven part to rotate; when the clutch motor stops outputting power, the rotating shaft is reset to the separation state, and the driven piece can rotate relative to the rotating shaft. According to the clutch component, the transmission device can be applied to meet the intelligent opening and closing requirement of the refrigerator, manual opening and closing operation of a user is not interfered, meanwhile, the structure is simple, and the production cost can be reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of household appliances, and in particular to a clutch component, a transmission device, a cabinet 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 fundamental function of refrigerator intelligence, automatic refrigerator opening and closing is also becoming increasingly widely used.

[0003] In the prior art, refrigerators typically use electric drives for automatic opening and closing. However, these drives also require a clutch component to accommodate manual opening and closing. However, the transmission mechanism of traditional clutch components is complex and the application cost is high, resulting in high production costs for these refrigerators. Utility Model Content

[0004] In view of this, the present application provides a clutch component, a transmission device, a box device and a refrigerator. The clutch component can meet the intelligent opening and closing requirements of the refrigerator without interfering with the user's manual opening and closing operations. At the same time, it has a simple structure and can reduce production costs.

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

[0006] An embodiment of the present disclosure provides a clutch component, including a driven member and a clutch motor. The driven member includes an output portion and a mating portion connected to the output portion. The clutch motor includes a motor body and a rotating shaft at least partially exposed from the motor body. The rotating shaft can move along the rotation axis direction of the rotating shaft and has a transmission state in which the rotating shaft is mated with the mating portion and a separation state in which the rotating shaft is separated from the mating portion. The rotating shaft can be reset to the separation state. When the clutch motor outputs power, the rotating shaft extends to the transmission state and drives the driven member to rotate. When the clutch motor stops outputting power, the rotating shaft resets to the separation state, and the driven member can rotate relative to the rotating shaft.

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

[0008] In one embodiment, the motor body includes a motor housing, a stator fixed to the motor housing, and a rotor that cooperates with the stator magnetic excitation. The rotor is fixed to the rotating shaft and can be telescopically moved along the direction of the rotating axis. The motor housing is provided with a limit end for limiting the rotor from detaching from the motor housing.

[0009] In one embodiment, the motor housing includes a first shell and a second shell adjacent to the first shell, the stator and the rotor are arranged in the first shell, the rotating shaft includes a shaft body inserted into the second shell, and the motor body also includes an electromagnetic coil arranged in the second shell. When the electromagnetic coil is energized, it magnetically repel and cooperates with the shaft body to move the rotating shaft to a transmission state.

[0010] In one embodiment, a magnetic yoke is provided between the first shell and the second shell, and / or the first shell and the second shell are both made of non-magnetic metal.

[0011] In one embodiment, the shaft is provided with a magnet that magnetically repel the electromagnetic coil.

[0012] In one embodiment, the clutch component further includes a reset element, which is provided on at least one of the rotating shaft, the clutch motor and the driven element, so that the rotating shaft can be reset to a disengaged state.

[0013] In one embodiment, the clutch motor further includes a reduction gearbox, the reduction gearbox including a third housing and a reduction gear set rotatably disposed in the third housing. The rotating shaft includes a motor shaft and an output shaft rotatably disposed in the third housing. One end of the motor shaft is drivingly connected to the motor body, and the other end of the motor shaft is drivingly connected to the output shaft via the reduction gear set. The reset member is an elastic member and is disposed between the mating portion and the output shaft to enable the rotating shaft to be reset to the disengaged state.

[0014] In one embodiment, the elastic member includes a conical spring, the output shaft is provided with a mounting groove and a connecting column arranged in the mounting groove, the mating portion is provided with an assembly groove corresponding to the mounting groove and a mating column arranged in the assembly groove, and the conical spring is sleeved between the connecting column and the mating column.

[0015] In one embodiment, one of the output shaft and the mating portion is provided with a slot, and the other of the output shaft and the mating portion is provided with a block. When the rotating shaft is in a transmission state, the block engages with the slot. When the rotating shaft is in a disengaged state, the block separates from the slot.

[0016] According to a second aspect of an embodiment of the present disclosure, there is provided a transmission device comprising a carrier, a telescopic assembly and the above-mentioned clutch component. The carrier comprises a first end and a second end arranged opposite to the first end. The clutch motor is arranged at the first end. The telescopic assembly comprises a rotating member rotatably arranged on the carrier and a telescopic member cooperating with the rotating member, and the rotating member is transmission-connected to the driven member. In the transmission state, the clutch motor can drive the telescopic member to move toward or away from the second end. In the separation state, the clutch motor and the telescopic assembly are disconnected from the transmission.

[0017] In one embodiment, the transmission device further includes a linkage mechanism and a drive rod. The linkage mechanism includes a first mounting member, a second mounting member, and a linkage assembly disposed between the first and second mounting members, wherein the second mounting member swings relative to the first mounting member via the linkage assembly. The drive rod is connected to the telescopic member and has a connecting notch at its second end. The drive rod passes through the connecting notch and movably connects to the linkage mechanism to drive the second mounting member to swing relative to the first mounting member.

[0018] According to a third aspect of the embodiments of the present disclosure, a box device is provided, comprising a box, a box door rotatably connected to the box, and the transmission device of the aforementioned embodiment. The box is connected to a first mounting member, and the box door is connected to a second mounting member.

[0019] According to a fourth aspect of an embodiment of the present disclosure, a box device is provided, comprising a box, a drawer, and the aforementioned transmission device. The box has a storage cavity, and the drawer is retractably disposed within the cavity. A support member is fixed to the box, and a retractable member is connected to the drawer to drive the drawer to move relative to the box.

[0020] According to a fifth aspect of the embodiments of the present disclosure, a refrigerator is provided, comprising a control device and the above-mentioned cabinet device. The control device is communicatively connected to the clutch motor.

[0021] The technical solutions provided by the embodiments of the present disclosure include at least the following beneficial effects:

[0022] When the clutch component provided by the present disclosure is in use, the rotating shaft is driven to rotate by the clutch motor, and the rotating shaft is capable of moving along the rotational axis of the rotating shaft to connect with the driven member to form a transmission state. In this way, the clutch motor can drive the rotating shaft and the driven member to rotate synchronously. When the clutch motor no longer outputs torque, the rotating shaft stops rotating and can be reset to a disengaged state separated from the driven member, thereby achieving separation from the driven member. In this way, the rotating shaft and the driven member are disconnected from the transmission, and the driven member can rotate freely relative to the rotating shaft under external force without dragging the clutch motor side to rotate synchronously. In this way, the clutch component provided by the present disclosure can achieve the linkage or separation of the rotating shaft and the driven member.

[0023] When the clutch component disclosed herein is applied to the transmission device between the door and the refrigerator body, the driven member can be used to connect the door assembly. When the rotating shaft and the driven member rotate synchronously, the refrigerator door can be automatically opened and closed by electric drive. When the rotating shaft and the driven member are disconnected from the transmission, the user can manually open and close the door, and the two opening and closing methods of the refrigerator door do not interfere with each other. At the same time, when the user manually opens and closes the door, the user does not need to drag the clutch motor end to rotate synchronously, which can reduce the resistance encountered by the user when manually opening and closing the door. This can reduce the load on the user when manually opening and closing the door, allowing the user to open and close the door with less effort, thereby improving the user experience.

[0024] The clutch component disclosed herein can also be used to automatically open and close a refrigerator drawer and refrigerator body. A driven member connects the drawer assembly, enabling the refrigerator to automatically open and close the drawer electrically when the rotating shaft and driven member rotate synchronously. When the rotating shaft and driven member are disconnected, the drawer can be opened and closed manually by the user, a process not described in detail in this disclosure.

[0025] Therefore, the clutch component provided by the present disclosure can realize the automatic opening and closing of the refrigerator and the manual opening and closing operation of the user. At the same time, the transmission structure and transmission method of the clutch component disclosed by the present disclosure are simple and the production cost is low.

[0026] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] Figure 1 Schematic diagram of the structure of a clutch component shown in one embodiment.

[0032] Figure 2 for Figure 1 The clutch component is shown in a cross-sectional view along AA (the clutch component is in a disengaged state).

[0033] Figure 3 for Figure 2 The schematic diagram of the structure of the clutch component shown is in the transmission state.

[0034] Figure 4 for Figure 1 An exploded view of the clutch components is shown from one perspective.

[0035] Figure 5 for Figure 1 An exploded view of the clutch components is shown from another perspective.

[0036] Figure 6 Schematic diagram of the structure of a follower shown in one embodiment.

[0037] Figure 7 It is a structural schematic diagram of a clutch component without a driven member shown in an embodiment.

[0038] Figure 8 FIG. 1 is a schematic structural diagram of a transmission device shown in an embodiment.

[0039] Figure 9 This is a partial structural diagram of a cabinet device formed by assembling a drawer and a cabinet of a refrigerator shown in one embodiment.

[0040] Figure 10 for Figure 9 Schematic diagram of the structure of the drawer shown being opened relative to the box body.

[0041] Figure 11 FIG. 1 is a schematic structural diagram of a transmission device shown in another embodiment.

[0042] Figure 12 The figure is a structural diagram of a cabinet device formed by assembling a door and a cabinet of a refrigerator shown in one embodiment.

[0043] Figure 13 for Figure 11 The schematic diagram of the structure of the transmission device after being encapsulated by the carrier is shown.

[0044] Figure 14 1 is a schematic structural diagram of a refrigerator shown in an embodiment.

[0045] Figure 15 for Figure 14 The refrigerator shown is a half-section view of the CC.

[0046] Figure 16 for Figure 14 The refrigeration principle diagram of the refrigerator shown.

[0047] Reference numerals:

[0048] 1. Refrigerator; 10. Door; 20. Container; 21. Storage cavity; 211. Refrigerator compartment; 212. Freezer compartment; 30. Transmission device; 31. Carrier; 311. First end; 312. Second end; 32. Telescopic assembly; 321. Rotating member; 322. Telescopic member; 33. Connecting rod mechanism; 331. First mounting member; 332. Second mounting member; 333. Connecting rod assembly; 34. Driving rod; 35. Coupling; 40. Clutch component; 41. Clutch motor; 411. Motor body; 4111. Motor housing; 4111a. First housing; 4111b. Second housing; 4112. Stator; 4113, rotor; 4114, electromagnetic coil; 412, rotating shaft; 4121, shaft; 4121a, magnet; 4122, motor shaft; 4123, output shaft; 4123a, mounting groove; 4423b, connecting column; 4123c, clamping block; 413, reduction gear box; 4131, third housing; 4132, reduction gear set; 42, follower; 421, output part; 422, mating part; 4221, assembly groove; 4222, mating column; 4223, clamping slot; 43, reset part; 50, drawer; 60, compressor; 70, condenser; 80, evaporator; 90, throttling assembly. DETAILED DESCRIPTION

[0049] 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.

[0050] If there are terms related to directional indications or positional relationships in the embodiments of the present 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 relationships, movement, etc. between the components under 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 the present application are only used for the purpose of convenience of description and should not be understood as indicating or implying relative importance.

[0051] With socioeconomic development and rising living standards, refrigerators have become an indispensable appliance in people's daily lives. The increasing diversification of refrigerator functions has led to a wide variety of refrigerator types and brands, providing consumers with a wide range of choices. Simply improving refrigerators' cooling properties is insufficient to meet consumer expectations. Refrigerator intelligence has also become a key factor influencing refrigerator competitiveness. Among refrigerators with similar functions or performance, the more intelligent a refrigerator is, the more likely it is to attract consumers.

[0052] Automatic refrigerator opening and closing, a fundamental function of intelligent refrigerators, is becoming increasingly popular. For example, refrigerator doors that automatically open and close are gaining popularity among consumers. Another example is refrigerator drawers that automatically open and close, making it easier for users to access items and are becoming increasingly popular.

[0053] In the related art, refrigerators typically use electric drive to achieve automatic opening and closing. Even with electric drive, a clutch component is still required to accommodate manual opening and closing. However, the transmission method of traditional clutch components is complex, resulting in high application costs, leading to high production costs for these refrigerators. For example, traditional clutch components are relatively bulky, with complex transmission methods and high application costs. For example, a clutch component that relies on a gear assembly to achieve clutch transmission requires multiple transmission gears, and the positioning and installation of each transmission gear must be highly precise to ensure that the transmission gears mesh, thereby transmitting or cutting off power. If any of the transmission gears fails, power transmission cannot be completed, and the clutch component loses its clutch function. As a result, the internal structure of traditional clutch components is cumbersome to install, the transmission method is complex, and the production cost is high. Once traditional clutch components are installed in refrigerators, the production cost of these refrigerators is also high.

[0054] Thus, the present disclosure provides a clutch component that enables both automated and manual opening and closing of a refrigerator. Furthermore, during manual opening and closing, the clutch component reduces resistance encountered by the user, enabling effortless operation and improving the user experience. Furthermore, the clutch component provided by the present disclosure simplifies its transmission structure and mode, reducing its production cost.

[0055] The clutch component provided by the present disclosure will be described below with reference to the accompanying drawings.

[0056] See also Figures 1 to 3 , Figure 1 FIG. 4 is a schematic structural diagram of a clutch component 40 shown in an embodiment. Figure 2 for Figure 1 The clutch component 40 is shown in a cross-sectional view along AA (the clutch component 40 is in a disengaged state). Figure 3 for Figure 2The schematic diagram of the structure of the clutch component 40 shown is in a transmission state. The clutch component 40 provided in the present disclosure includes a clutch motor 41 and a driven member 42. The driven member 42 includes an output portion 421 and a matching portion 422 connected to the output portion 421. The clutch motor 41 includes a motor body 411 and a rotating shaft 412 at least partially exposed from the motor body 411. The rotating shaft 412 can move along the rotating shaft 412 line of the rotating shaft 412 and has a transmission state in which it is in transmission with the matching portion 422 and a separation state in which it is separated from the matching portion 422. The rotating shaft 412 can be reset to the separation state. When the clutch motor 41 outputs power, the rotating shaft 412 extends to the transmission state and drives the driven member 42 to rotate. When the clutch motor 41 stops outputting power, the rotating shaft 412 resets to the separation state, and the driven member 42 can rotate relative to the rotating shaft 412.

[0057] It should be noted that the rotating shaft 412 can be driven to rotate by the clutch motor 41, and the rotating shaft 412 can move along the rotating shaft 412 line direction of the rotating shaft 412 to connect with the driven member 42 to form a transmission state, so that the clutch motor 41 can drive the rotating shaft 412 to rotate synchronously with the driven member 42. When the clutch motor 41 no longer outputs torque, the rotating shaft 412 stops rotating and can be reset to a separated state separated from the driven member 42, thereby achieving separation from the driven member 42. In this way, the rotating shaft 412 and the driven member 42 are disconnected from the transmission, and the driven member 42 can be freely rotated relative to the rotating shaft 412 by external force without dragging the clutch motor 41 side to rotate synchronously. In this way, the clutch component 40 provided by the present disclosure can realize the linkage or separation of the rotating shaft 412 and the driven member 42.

[0058] As an example, the axial direction of the rotating shaft 412 can be arranged along the X-direction, and the driven member 42 can be arranged as a driven shaft coaxially arranged with the rotating shaft 412 along the X-direction. The two ends of the rotating shaft 412, spaced apart along the X-direction, can be used to connect the clutch motor 41 and the driven member 42, respectively. The two ends of the driven member 42, spaced apart along the X-direction, are respectively an output portion 421 and a mating portion 422. The output portion 421 can be used to connect to a door or drawer, and the mating portion 422 is used to mate with the rotating shaft 412.

[0059] The follower 42 is used to connect a movable component that can be driven by the clutch motor 41 or manually driven by the user. For example, when it is necessary to drive the drawer of the refrigerator to open and close automatically, the movable component can be the drawer component of the refrigerator. Or, when it is necessary to drive the door of the refrigerator to open and close automatically, the movable component can be the door component of the refrigerator. The movable component can be any part that the user hopes to be able to open and close automatically or manually. The user can select the corresponding movable component according to actual use requirements, and the present disclosure does not limit it. Among them, when the rotating shaft 412 is fixedly connected to the follower 42 to form a transmission state, the clutch motor 41 can drive the rotating shaft 412 and the follower 42 to rotate synchronously, realizing the linkage between the rotating shaft 412 and the follower 42, so as to drive the movable component to realize automatic opening and closing. When the rotating shaft 412 is separated from the follower 42, the follower 42 is not subject to the rotation control of the clutch motor 41, and the user can manually open and close the movable component.

[0060] For example, when the clutch component 40 of the present disclosure is applied to the transmission device between the door and the body of a refrigerator, the follower 42 can be used to connect the door assembly. When the rotating shaft 412 and the follower 42 rotate synchronously, the refrigerator door can be automatically opened and closed by electric drive. When the rotating shaft 412 and the follower 42 are disconnected from the transmission, the user can manually open and close the door, and the two opening and closing methods of the refrigerator do not interfere with each other. At the same time, when the user manually opens and closes the door, the user does not need to drag the clutch motor 41 end to rotate synchronously, which can reduce the resistance encountered by the user when manually opening and closing the door. This can reduce the load of the user manually opening and closing the door, allowing the user to save effort in opening and closing the door, thereby improving the user experience.

[0061] The clutch component 40 disclosed herein can also be used to automatically open and close a refrigerator drawer and refrigerator body. A follower 42 connects the drawer assembly, enabling the refrigerator's drawer to automatically open and close electrically when the rotating shaft 412 and follower 42 rotate synchronously. When the rotating shaft 412 and follower 42 are disconnected, the drawer can be opened and closed manually by the user, a process not detailed herein.

[0062] Therefore, the clutch component 40 provided by the present disclosure can realize the automatic opening and closing of the refrigerator and the manual opening and closing operation of the user. At the same time, the transmission structure and transmission method of the clutch component 40 disclosed by the present disclosure are simple and the production cost is low.

[0063] See also Figure 2 and Figure 3 , Figure 2 for Figure 1 The clutch component 40 is shown in a cross-sectional view along AA (the clutch component 40 is in a disengaged state). Figure 3 for Figure 2The structure of the clutch component 40 in a transmission state is shown. In one embodiment, to facilitate the clutch motor 41 to drive the rotating shaft 412 to rotate, the motor body 411 includes a motor housing 4111, a stator 4112 fixed to the motor housing 4111, and a rotor 4113 that cooperates with the magnetic excitation of the stator 4112. The rotor 4113 is fixed to the rotating shaft 412 and can move telescopically along the axis of the rotating shaft 412. The motor housing 4111 is provided with a limit end to prevent the rotor 4113 from separating from the motor housing 4111.

[0064] It should be noted that when the clutch motor 41 is started, when current passes through the winding of the stator 4112, a rotating magnetic field will be generated in the stator 4112. When the rotating magnetic field of the stator 4112 passes through the rotor 4113, an induced current will be generated in the rotor 4113, causing the rotor 4113 to generate an induced magnetic field that interacts with the rotating magnetic field. In this way, the rotating magnetic field of the stator 4112 and the induced magnetic field of the rotor 4113 interact with each other to generate a torque that can drive the rotor 4113 to rotate, so that the rotor 4113 can drive the rotating shaft 412 to rotate. Therefore, when the rotating shaft 412 is connected to the driven member 42 to form a transmission state, the rotating shaft 412 can drive the driven member 42 to rotate synchronously, thereby realizing the linkage between the rotating shaft 412 and the driven member 42.

[0065] It should also be noted that the motor housing 4111 is provided with a limiting end for limiting the rotor 4113 from separating from the motor housing 4111. The limiting end can be the end cover on the left and right sides of the motor housing 4111 in the figure, or it can be a convex body protruding from the motor housing 4111 to limit the rotor 4113 from falling off. This application does not impose any restrictions.

[0066] See also Figure 2 and Figure 3 , Figure 2 for Figure 1 The clutch component 40 is shown in a cross-sectional view along AA (the clutch component 40 is in a disengaged state). Figure 3 for Figure 2 The structure of the clutch component 40 is shown in a transmission state. In one embodiment, to facilitate the clutch motor 41 to drive the rotating shaft 412 to move along the rotating shaft 412 and connect with the driven member 42 to form a transmission state, the motor housing 4111 includes a first housing 4111a and a second housing 4111b adjacent to the first housing 4111a. The stator 4112 and the rotor 4113 are disposed within the first housing 4111a. The rotating shaft 412 includes a shaft 4121 inserted into the second housing 4111b. The motor body 411 also includes an electromagnetic coil 4114 disposed within the second housing 4111b. When energized, the electromagnetic coil 4114 magnetically repulsively engages with the shaft 4121 to move the rotating shaft 412 into the transmission state.

[0067] It should be noted that when the clutch motor 41 is started, the electromagnetic coil 4114 is energized to generate a magnetic field, and a magnetic repulsive force is generated between the magnetic field generated by the electromagnetic coil 4114 and the shaft 4121 of the rotating shaft 412 to push the rotating shaft 412 to move along the X direction.

[0068] Among them, Figure 2 In this embodiment, since the rotating shaft 412 is in a separated state from the driven member 42, the counterclockwise or clockwise movement of the driven member 42 does not interfere with the movement of the rotating shaft 412, and the driven member 42 is not controlled by the rotation of the clutch motor 41. In other words, the driven member 42 can rotate relative to the rotating shaft 412, facilitating manual operation by the user.

[0069] When the clutch motor 41 is started, the electromagnetic coil 4114 is energized to generate a magnetic field. A magnetic repulsion force is generated between the magnetic field generated by the electromagnetic coil 4114 and the shaft 4121 of the rotating shaft 412, so that the rotating shaft 412 moves along the X direction due to the magnetic repulsion force and is fixedly connected to the matching portion 422 of the driven member 42 to form a Figure 3 In this way, through the connection between the rotating shaft 412 and the matching portion 422, when the clutch motor 41 drives the rotating shaft 412 to rotate, it can drive the driven member 42 to rotate synchronously, thereby realizing the linkage between the rotating shaft 412 and the driven member 42.

[0070] exist Figure 3 When the clutch motor 41 stops and no longer outputs torque, the rotating shaft 412 stops rotating, the electromagnetic coil 4114 loses power and no longer generates a magnetic field, so that the magnetic repulsion between the rotating shaft 412 and the electromagnetic coil 4114 disappears, and the rotating shaft 412 can move in the opposite direction of X and separate from the matching portion 422, thereby resetting to Figure 2 The separation state realizes the separation of the rotating shaft 412 and the driven member 42, and the transmission between the rotating shaft 412 and the driven member 42 is disconnected. The driven member 42 can be freely rotated relative to the rotating shaft 412 by external force without dragging the rotating shaft 412 to rotate synchronously.

[0071] In this way, the clutch motor 41 can drive the rotating shaft 412 to move along the rotating shaft 412 through the magnetic repulsive force generated by energizing the electromagnetic coil 4114, eliminating the need for a gear assembly to drive the rotating shaft 412 to move. This simplifies the transmission structure and transmission method of the clutch component 40 and reduces the production cost of the clutch component 40. In addition, the clutch component 40 provided in the present disclosure drives the rotating shaft 412 to move through the magnetic repulsive force generated by energizing the electromagnetic coil 4114. This simplifies the transmission structure of the clutch component 40 while also reducing the structural size of the clutch component 40. This reduces the installation space occupied by the clutch component 40 in the refrigerator after it is installed in the refrigerator.

[0072] At the same time, it can be understood that the present disclosure arranges the electromagnetic coil 4114 and the stator 4112 and the rotor 4113 at intervals through the first shell 4111a and the second shell 4111b, which can avoid the magnetic field generated by the electromagnetic coil 4114 from interfering with the magnetic field generated between the stator 4112 and the rotor 4113, thereby ensuring that the clutch motor 41 can both drive the rotating shaft 412 to rotate and drive the rotating shaft 412 to move along the rotating shaft 412 line.

[0073] like Figure 2 and Figure 3 As shown, in one embodiment, in order to facilitate the generation of magnetic repulsion between the shaft 4121 and the electromagnetic coil 4114, the shaft 4121 is provided with a magnet 4121a that magnetically repel the electromagnetic coil 4114.

[0074] In one embodiment, to further prevent the magnetic field of the electromagnetic coil 4114 from interfering with the magnetic field between the stator 4112 and the rotor 4113 , a magnetic yoke is provided between the first housing 4111 a and the second housing 4111 b .

[0075] It should be noted that the yoke is usually made of a material with high magnetic permeability (such as silicon steel), which can effectively conduct magnetic flux and reduce energy loss. Among them, the present disclosure sets a magnetic yoke between the first shell 4111a and the second shell 4111b, which can form a closed magnetic circuit between the stator 4112 and the rotor 4113 in the first shell 4111a, so that the magnetic field interacting between the stator 4112 and the rotor 4113 flows inside the first shell 4111a, and avoids leaking into the second shell 4111b. At the same time, a closed magnetic circuit can be formed between the electromagnetic coil 4114 and the shaft 4121 in the second shell 4111b, so that the magnetic field interacting between the electromagnetic coil 4114 and the shaft 4121 flows inside the second shell 4111b, and avoids leaking into the first shell 4111a.

[0076] Thus, by providing a magnetic yoke between the first housing 4111a and the second housing 4111b, the magnetic field within the first housing 4111a is effectively isolated from the magnetic field within the second housing 4111b. This effectively shields the magnetic field within the first housing 4111a from interfering with the magnetic field within the second housing 4111b, and the magnetic field within the second housing 4111b from interfering with the magnetic field within the first housing 4111a. This ensures that the clutch motor 41 drives the rotating shaft 412 to rotate and move. Furthermore, providing a magnetic yoke between the first housing 4111a and the second housing 4111b can reduce energy loss caused by changes in the magnetic field.

[0077] In some embodiments, the first housing 4111a and the second housing 4111b may both be made of non-magnetic metal, such as copper or aluminum, which is not limited in the present disclosure.

[0078] See also Figure 2 and Figure 3 In one embodiment, to facilitate separation of the rotating shaft 412 and the driven member 42, the clutch component 40 further includes a reset member 43. The reset member 43 is disposed on at least one of the rotating shaft 412, the clutch motor 41, and the driven member 42, so as to reset the rotating shaft 412 to the separated state. The reset member 43 can be a spring-like elastic member.

[0079] See also Figures 2 to 5 , Figure 2 for Figure 1 The clutch component 40 is shown in a cross-sectional view along AA (the clutch component 40 is in a disengaged state). Figure 3 for Figure 2 The schematic structural diagram of the clutch component 40 is shown in the transmission state. Figure 4 for Figure 1 The clutch component 40 is shown in an exploded view from one perspective. Figure 5 for Figure 1 An exploded view of the clutch component 40 from another perspective is shown. In one embodiment, to reduce the rotational speed of the rotating shaft 412, the clutch motor 41 further includes a reduction gearbox 413. The reduction gearbox 413 includes a third housing 4131 and a reduction gear set 4132 rotatably disposed on the third housing 4131. The rotating shaft 412 includes a motor shaft 4122 and an output shaft 4123 rotatably disposed on the third housing 4131. One end of the motor shaft 4122 is transmission-connected to the motor body 411, and the other end of the motor shaft 4122 is transmission-connected to the output shaft 4123 via the reduction gear set 4132. The reset member 43 is an elastic member and is disposed between the mating portion 422 and the output shaft 4123 to enable the rotating shaft 412 to be reset to the disengaged state.

[0080] It should be noted that the reduction gearbox 413 can reduce the high speed of the rotating shaft 412 driven by the clutch motor 41, so that the output shaft 4123 of the rotating shaft 412 is connected to the follower 42 at a lower output speed to adapt to the working requirements of the movable parts assembly connected to different follower 42.

[0081] See also Figure 2 、 Figure 3 、 Figure 6 and Figure 7 In some embodiments, to facilitate the installation of the reset member 43, the elastic member includes a spring, the output shaft 4123 is provided with a mounting groove 4123a and a connecting column 4423b arranged in the mounting groove 4123a, the matching portion 422 is provided with an assembly groove 4221 corresponding to the mounting groove 4123a and a matching column 4222 arranged in the assembly groove 4221, and the spring is arranged between the connecting column 4423b and the matching column 4222.

[0082] Thus, when the output shaft 4123 is connected to the mating portion 422 to form a transmission state, the output shaft 4123 and the mating portion 422 approach each other, and the connecting column 4423b and the mating column 4222 also approach each other, causing the spring to be squeezed and deformed. When the clutch motor 41 stops outputting power, the spring can recover its deformation and push the output shaft 4123 away from the mating portion 422, causing the output shaft 4123 to separate from the mating portion 422, thereby returning the rotating shaft 412 to the separated state.

[0083] The spring can be configured as a conical spring. Due to its tapered shape, the spring coils at both ends of the conical spring have different radial dimensions. Thus, the smaller diameter end of the conical spring can be used to slot into the connecting column 4423b, while the larger diameter end of the conical spring can slot into the mating column 4222. By configuring the elastic member as a conical spring, the conical spring can utilize its elastic restoring force to pull the rotating shaft 412 away from the mating portion 422 to return to the disengaged state. Furthermore, the spring's stiffness can be adjusted by adjusting its taper, ensuring effective connection between the conical spring and the rotating shaft 412 and the mating portion 422. As will be appreciated, due to the conical spring's unique shape, it can also provide greater compression than a conventional cylindrical spring at the same compression height, thereby saving internal installation space within the clutch component 40 and improving the compactness of the clutch component 40.

[0084] See also Figure 6 and Figure 7 , Figure 6 FIG. 4 is a schematic structural diagram of a follower 42 shown in an embodiment. Figure 7 This is a schematic diagram of the structure of the clutch component 40, shown in one embodiment, without the driven member 42. In one embodiment, to improve the connection stability between the rotating shaft 412 and the driven member 42, a slot 4223 is provided between the output shaft 4123 and the mating portion 422, and a block 4123c is provided between the output shaft 4123 and the mating portion 422. When the rotating shaft 412 is in the transmission state, the block 4123c engages with the slot 4223. When the rotating shaft 412 is in the disengagement state, the block 4123c separates from the slot 4223.

[0085] Take, for example, a configuration in which the block 4123c is disposed on the output shaft 4123 and the slot 4223 is disposed on the mating portion 422. With this configuration, when the electromagnetic coil 4114 is energized, the rotating shaft 412 can be moved in the X-direction by the magnetic repulsion force, and the block 4123c engages with the slot 4223, forming a transmission state for the rotating shaft 412. At this point, the plug-in fit formed by the slot 4223 and the block 4123c can increase the connection area between the mating portion 422 and the output shaft 4123, thereby improving transmission reliability. Furthermore, a clearance fit can be provided between the block 4123c and the slot 4223. This allows the block 4123c to easily disengage from the slot 4223 when the rotating shaft 412 is separated, thereby achieving separation of the mating portion 422 from the output shaft 4123.

[0086] See also Figure 8 , Figure 8 FIG. 1 is a schematic structural diagram of a transmission device shown in an embodiment. Figure 8 The X direction may be the axial direction of the rotating shaft 412, and the Y direction may be the radial direction of the rotating shaft 412. In some embodiments, the present disclosure further provides a transmission device 30, comprising a carrier 31, a telescopic assembly 32 and a clutch component 40 of any of the above embodiments. The carrier 31 includes a first end 311 and a second end 312 arranged opposite to the first end 311. The clutch motor 41 is arranged at the first end 311, and the telescopic assembly 32 includes a rotating member 321 rotatably arranged on the carrier 31 and a telescopic member 322 cooperating with the rotating member 321, and the rotating member 321 is transmission-connected to the driven member 42. In the limited state, the clutch motor 41 can drive the telescopic member 322 to move toward or away from the second end 312. In the separated state, the clutch motor 41 and the telescopic assembly 32 are disconnected from the transmission.

[0087] See also Figure 9 and Figure 10 , Figure 9 This is a partial structural diagram of a cabinet device formed by assembling a drawer and a cabinet of a refrigerator shown in one embodiment. Figure 10 for Figure 9 The structure diagram of the drawer is shown in FIG. 1 . In order to better understand the assembly relationship between the box 20 and the drawer 50, the present disclosure Figure 9 Partially illustrating the housing 20, the structure is omitted. In this embodiment, the housing device comprises the housing 20, a drawer 50, and the transmission device 30 described in the above embodiment. The housing 20 defines a storage cavity 21, within which the drawer 50 is retractably positioned. A support member 31 is secured to the housing 20, and a retractable member 322 is connected to the drawer 50 to drive its movement relative to the housing 20.

[0088] It should be noted that when the transmission device 30 provided by the present disclosure is applied to a cabinet device, the transmission device 30 can be installed between the drawer 50 and the cabinet 20 of the refrigerator 1 to realize automatic opening and manual opening of the drawer 50. Among them, the supporting member 31 is fixed to the cabinet 20, and the telescopic member 322 is connected to the drawer 50 to drive the drawer 50 to move relative to the cabinet 20. The first end 311 and the second end 312 of the supporting member 31 can be spaced apart in the direction shown by X in the figure. When the clutch component 40 is in a limited state, the clutch motor 41 is transmission-connected to the telescopic component 32, and the clutch motor 41 can drive the telescopic member 322 to move toward or away from the second end 312 to realize the electrically driven automatic opening and closing of the drawer 50. When the clutch component 40 is in a disengaged state, the clutch motor 41 and the telescopic component 32 are disconnected from each other, and the user can manually open and close the drawer 50 without dragging the clutch motor 41 end to rotate, so that the manual opening and closing drawer 50 and the electric opening and closing drawer 50 do not interfere with each other. This can reduce the manual load, and the user can save effort to open and close the drawer 50, thereby improving the user experience.

[0089] like Figure 8 As shown, in some embodiments, to facilitate converting the rotation of the clutch motor 41 into a driving force for extending and retracting the drawer 50, the telescopic assembly 32 may include a rotating member 321 rotatably disposed on the carrier 31 and a telescopic member 322 cooperating with the rotating member 321. The rotating member 321 is connected to the output shaft of the clutch component 40, and the telescopic member 322 is connected to the drawer 50. When the clutch component 40 is in a limited position, the clutch motor 41 is in transmission connection with the telescopic assembly 32 to drive the telescopic member 322 to reciprocate along the rotating member 321, thereby driving the drawer 50 to open and close, so that the drawer 50 is opened or closed electrically. When the clutch component 40 is in a separated state, the clutch motor 41 and the telescopic assembly 32 are disconnected from the transmission, and the user can manually open and close the drawer 50, and the drawer 50 can drive the telescopic member 322 to move back and forth along the rotating member 321. However, since the telescopic assembly 32 and the clutch motor 41 are disconnected due to the clutch component 40, the telescopic assembly 32 will not transmit the motion to the clutch motor 41 end. Therefore, when the user manually opens and closes the drawer 50, there is no need to drive the clutch motor 41 end to rotate, so as to reduce the switching resistance.

[0090] As an example, the telescopic assembly 32 can be configured as a screw-nut kinematic pair, wherein the rotating member 321 can be configured as a screw, and the telescopic member 322 can be configured as a nut threadedly connected to the screw. Through the threaded transmission between the screw and the nut, the rotation is converted into linear motion, and the rotation of the clutch motor 41 is then converted into the driving force for opening and closing the drawer 50.

[0091] See also Figure 11 , Figure 11 FIG. 1 is a schematic structural diagram of a transmission device shown in another embodiment. Figure 11The X direction may be the axial direction of the rotation shaft 412, and the Y direction may be the radial direction of the rotation shaft 412. In other embodiments, the transmission device 30 further includes a linkage mechanism 33 and a drive rod 34. The linkage mechanism 33 includes a first mounting member 331, a second mounting member 332, and a linkage assembly 333 disposed between the first mounting member 331 and the second mounting member 332. The second mounting member 332 swings relative to the first mounting member 331 via the linkage assembly 333. The drive rod 34 is connected to the telescopic member 322. A connecting notch is defined at the second end 312. The drive rod 34 passes through the connecting notch and is movably connected to the linkage mechanism 33 to drive the second mounting member 332 to swing relative to the first mounting member 331.

[0092] See also Figure 12 , Figure 12 This is a schematic diagram of the structure of a refrigerator cabinet assembly formed by assembling the door and cabinet of a refrigerator according to one embodiment. In this embodiment, the cabinet assembly includes a cabinet 20, a door 10 rotatably connected to the cabinet, and the transmission device 30 described in the above embodiment. The cabinet 20 is connected to a first mounting member 331, and the door 10 is connected to a second mounting member 332.

[0093] It should be noted that when the transmission device 30 provided by the present disclosure is applied to a refrigerator, the connecting rod mechanism 33 can be installed between the refrigerator door 10 and the refrigerator body 20. The telescopic assembly 32 drives the driving rod 34 to drive the connecting rod mechanism 33 to move, thereby realizing the automatic opening and closing of the refrigerator door 10. Specifically, the refrigerator body 20 can be connected to the first mounting member 331, and the refrigerator door 10 can be connected to the second mounting member 332. The connecting rod assembly 333 is connected between the first mounting member 331 and the second mounting member 332 and is driven by the telescopic assembly 32. The connecting notch of the carrier 31 allows the driving rod 34 to connect to the telescopic member 322. When the clutch component 40 is in a limited position, the clutch motor 41 is in transmission connection with the telescopic assembly 32. The clutch motor 41 can drive the rotating member 321 to move the telescopic member 322. The telescopic member 322 drives the driving rod 34 to move the connecting rod assembly 333, causing the second mounting member 332 to swing relative to the first mounting member 331. This allows the door 10 to be driven by the clutch motor 41 to open or close relative to the cabinet 20, thereby realizing automatic door opening and closing of the refrigerator 1. When the clutch component 40 is in a disengaged state, the clutch motor 41 is disconnected from the telescopic assembly 32. The user can manually open or close the door 10 without dragging the clutch motor 41 end to rotate, thereby reducing the manual load, allowing the user to open or close the door 10 with less effort, and preventing the clutch motor 41 rotation from interfering with the user's manual door opening and closing.

[0094] In addition, to accommodate the rotational installation between the door 10 and the housing 20 , the connecting rod assembly 333 may be integrated with the hinge assembly between the door 10 and the housing 20 , which is not limited in the present disclosure.

[0095] See also Figure 13 , Figure 13 for Figure 11 Figure 3 shows the structure of the transmission device encapsulated by a carrier. In some embodiments, to enhance the aesthetics of the transmission device 30 when installed in a box, the carrier 31 can be configured as a shell. The carrier 31 can encapsulate the transmission device 30. This shields various components of the transmission device 30, creating a neat appearance. Furthermore, the carrier 31 can be used to protect or lubricate the internal structure of the transmission device 30.

[0096] In some embodiments, the present disclosure further provides a refrigerator 1, comprising a control device and the above-mentioned cabinet device. The cabinet device may include a cabinet 20, a drawer 50, and a transmission device 30. Alternatively, the cabinet device may include a cabinet 20, a cabinet door 10, and a transmission device 30 with a connecting rod mechanism 33. Alternatively, the cabinet device may include a cabinet 20, a cabinet door 10, a drawer 50, a transmission device 30 connected between the cabinet 20 and the drawer 50, and a transmission device 30 connected between the cabinet 20 and the cabinet door 10, and the present disclosure does not limit this.

[0097] The control device is in communication with the clutch motor 41. Thus, the refrigerator 1 provided by the present disclosure can achieve intelligent automatic opening and closing between the door 10 and the housing 20, or between the housing 20 and the drawer 50, through a mechanical clutch transmission method, while not interfering with the user's manual opening and closing of the door 10, reducing the resistance of the user to manual opening and closing of the door 10, and improving the user experience.

[0098] It should be noted that the control device includes a controller built into the refrigerator 1, such as an MCU (microcontroller unit), a PLC (programmable logic controller), a CPU (central processing unit), or a single-chip microcomputer. Thus, the controller built into the refrigerator 1 can be linked to the start and stop of the clutch motor 41, and this disclosure does not impose any restrictions.

[0099] In some embodiments, the refrigerator 1 may further include other movable parts such as the door 10 and the drawer 50 that move relative to the housing 20. Thus, by installing the transmission device 30 between the housing 20 and the movable parts, the movable parts can be automatically opened and manually opened relative to the housing 20, which is not limited in the present disclosure.

[0100] See also Figures 14 to 16 , Figure 14 1 is a schematic structural diagram of a refrigerator shown in an embodiment. Figure 15 for Figure 14 The refrigerator shown is a half-section view of the CC. Figure 16 for Figure 14Refrigerator Refrigeration Principle Diagram shown. In some embodiments, refrigerator 1 further includes a compressor 60, a condenser 70, an evaporator 80, and a throttle assembly 90. The housing 20 also includes a storage cavity 21, which includes a refrigerated compartment 211 and a frozen compartment 212. The compressor 60, condenser 70, evaporator 80, and throttle assembly 90 are respectively disposed in the housing 20, with at least a portion of the evaporator 80 disposed within the frozen compartment 212.

[0101] Combine Figure 16 As shown, when refrigerator 1 is in operation, compressor 60 outputs high-temperature, high-pressure gaseous refrigerant to condenser 70, where it is condensed into medium-temperature, high-pressure refrigerant. The medium-temperature, high-pressure refrigerant undergoes expansion and throttling by throttling assembly 90, further reducing its pressure and temperature. It then flows out of throttling assembly 90 as low-temperature, low-pressure liquid refrigerant to evaporator 80. The low-temperature, low-pressure liquid refrigerant evaporates into gaseous refrigerant within evaporator 80. At least a portion of evaporator 80 is located within freezer compartment 212, allowing the refrigerant to absorb a significant amount of heat from freezer compartment 212 during evaporation, thereby lowering the temperature within freezer compartment 212 and facilitating the use of freezer compartment 212 to freeze items, achieving refrigeration in refrigerator 1. The refrigerant exiting evaporator 80 is then replenished back into compressor 60, 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 freezer compartment 212.

[0102] In some embodiments, an air duct is provided between the refrigerating chamber 211 and the freezing chamber 212 to facilitate the transfer of part of the cold air from the freezing chamber 212 to the refrigerating chamber 211 through the air duct to reduce or maintain the low temperature environment of the refrigerating chamber 211 (e.g., 2°C to 8°C).

[0103] In some embodiments, the freezer compartment 212 is positioned below the refrigerator compartment 211 along the height of the refrigerator 1. The refrigerator 1 further includes a first fan (not labeled) disposed within the housing 20 assembly. The first fan's air inlet or outlet is connected to an air duct for transferring some of the cold air from the freezer compartment 212 to the refrigerator compartment 211. The drawer 50 may be disposed within the refrigerator compartment 211 and / or the freezer compartment 212, but this disclosure does not limit this.

[0104] like Figure 15 As shown, the height direction of the refrigerator 1 is the Z-axis direction. Regarding other structures of the refrigerator 1, this disclosure does not elaborate on them.

[0105] It should be noted that when one element is considered to be "transmission-connected" to another element, the two elements can be fixed in a detachable or non-detachable manner, as long as they can achieve force transmission. For example, shaft connection, sleeve connection, snap connection, integral molding fixation, welding, etc. can be achieved in traditional technologies and can be flexibly selected according to actual application needs. For example, one element is provided with a non-cylindrical body, and the other element is provided with a mating hole for transmission cooperation with the non-cylindrical body. Non-cylindrical bodies include polygonal cylinders, elliptical cylinders, semi-cylinders, etc., which will not be described in detail in this disclosure.

[0106] The technical solutions or technical features described in the above embodiments may be combined or supplemented with each other without conflict. The scope of protection of this disclosure is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this disclosure shall be included in the scope of protection of this disclosure.

Claims

1. A clutch component, characterized in that: include: The follower comprises an output portion and a matching portion connected to the output portion; as well as A clutch motor comprising a motor body and a rotating shaft at least partially exposed from the motor body, the rotating shaft being movable along its rotation axis and having a transmission state in which the rotating shaft is in transmission engagement with the mating portion and a separation state in which the rotating shaft is separated from the mating portion, the rotating shaft being capable of resetting to the separation state; When the clutch motor outputs power, the rotating shaft extends to the transmission state and drives the driven member to rotate; When the clutch motor stops outputting power, the rotating shaft returns to the separated state, and the driven member can rotate relative to the rotating shaft.

2. The clutch component according to claim 1, characterized in that: The motor body includes a motor housing, a stator fixed to the motor housing, and a rotor that cooperates with the stator for magnetic excitation. The rotor is fixed to the rotating shaft and can be telescopically moved along the direction of the rotating axis. The motor housing is provided with a limit end that limits the rotor from detaching from the motor housing.

3. The clutch component according to claim 2, characterized in that: The motor housing includes a first shell and a second shell adjacent to the first shell. The stator and the rotor are arranged in the first shell. The rotating shaft includes a shaft body inserted into the second shell. The motor body also includes an electromagnetic coil arranged in the second shell. When the electromagnetic coil is energized, it magnetically repel and cooperates with the shaft body to move the rotating shaft to the transmission state.

4. The clutch component according to claim 3, characterized in that: A magnetic yoke is provided between the first shell and the second shell; And / or, the first shell and the second shell are both made of non-magnetic metal.

5. The clutch component according to claim 3, characterized in that: The shaft body is provided with a magnet that magnetically repels the electromagnetic coil.

6. The clutch component according to claim 1, characterized in that: The clutch component further includes a reset element, which is provided on at least one of the rotating shaft, the clutch motor, and the driven element, so as to enable the rotating shaft to be reset to the separation state.

7. The clutch component according to claim 6, characterized in that: The clutch motor further includes a reduction gearbox, which includes a third housing and a reduction gear set rotatably disposed on the third housing. The rotating shaft includes a motor shaft and an output shaft rotatably disposed on the third housing. One end of the motor shaft is transmission-connected to the motor body, and the other end of the motor shaft is transmission-connected to the output shaft via the reduction gear set. The reset member is an elastic member and is disposed between the matching portion and the output shaft so as to enable the rotating shaft to reset to the separated state.

8. The clutch component according to claim 7, characterized in that: The elastic member includes a conical spring, the output shaft is provided with a mounting groove and a connecting column arranged in the mounting groove, the matching portion is provided with an assembly groove corresponding to the mounting groove and a matching column arranged in the assembly groove, and the conical spring is sleeved between the connecting column and the matching column.

9. The clutch component according to claim 7, characterized in that: One of the output shaft and the matching portion is provided with a slot, and the other of the output shaft and the matching portion is provided with a block; When the rotating shaft is in a transmission state, the clamping block is plugged into and matched with the clamping slot; When the rotating shaft is in a separated state, the clamping block is separated from the clamping slot.

10. A transmission device, characterized in that: comprising a bearing member, a telescopic assembly and a clutch component according to any one of claims 1 to 9; The bearing member includes a first end and a second end disposed opposite to the first end; The clutch motor is arranged at the first end; The telescopic assembly includes a rotating member rotatably arranged on the bearing member and a telescopic member cooperating with the rotating member, and the rotating member is transmission-connected to the driven member; In the transmission state, the clutch motor can drive the telescopic member to move toward or away from the second end; In the separation state, the clutch motor and the telescopic assembly are disconnected from each other.

11. The transmission device according to claim 10, characterized in that: The transmission device further includes a connecting rod mechanism and a driving rod; the connecting rod mechanism includes a first mounting member, a second mounting member, and a connecting rod assembly disposed between the first mounting member and the second mounting member, and the second mounting member swings relative to the first mounting member via the connecting rod assembly; The driving rod is connected to the telescopic member, and a connecting notch is provided at the second end. The driving rod passes through the connecting notch and is movably connected to the connecting rod mechanism to drive the second mounting member to swing relative to the first mounting member.

12. A box device, characterized in that: It comprises a box body, a box door rotatably connected to the box body, and the transmission device according to claim 11; the box body is connected to the first mounting member, and the box door is connected to the second mounting member.

13. A box device, characterized in that: It comprises a box body, a drawer and the transmission device according to claim 10, wherein the box body is provided with a storage cavity, the drawer is telescopically arranged in the storage cavity, the supporting member is fixed to the box body, and the telescopic member is connected to the drawer to drive the drawer to move relative to the box body.

14. A refrigerator, characterized in that: It comprises a control device and the box equipment according to claim 12 or 13; the control device is communicatively connected with the clutch motor.

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