Refrigerator

Abstract

The embodiment of the invention relates to the technical field of household appliances, and provides a refrigerator which comprises a refrigerator body, a door body and a door opening and closing device. The door opening and closing device comprises a power mechanism, a first transmission mechanism, a second transmission mechanism, a door pushing mechanism, a door rotating mechanism and a clutch. The clutch connects or disconnects the second transmission mechanism and the door rotating mechanism. The clutch comprises a driving gear, a driven gear, a friction piece, a pushing piece, a guide assembly and a driving assembly, the driving gear is in transmission connection with the second transmission mechanism, the driven gear is in transmission connection with the revolving door mechanism, one of the driving gear and the driven gear is connected with the friction piece, and the other one is connected with or separated from the friction piece; the driving assembly drives the guiding assembly to move so as to push the pushing piece to move and abut against the friction piece, and the driving gear and the driven gear are connected or separated. The clutch is simple in structure and small in overall size, loads generated in the automatic door opening and closing process of the clutch are borne through the friction piece, and the load bearing capacity of the clutch can be improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of household appliance technology, and more specifically, to a refrigerator. Background Art

[0002] A refrigerator is a refrigeration device that keeps a constant low temperature, and is also a civilian product that keeps food or other items at a constant low temperature. In the prior art, there are refrigerators with automatic door opening and closing to improve the convenience of user operation and safety of use.

[0003] Due to the suction of the door seal, the resistance of the suction aid, the pressure difference between the inside and outside, etc., the force required for the door to open is relatively large. At present, refrigerators with automatic door opening and closing usually use a push rod actuator to push the door open to a certain angle, and then rely on a rotary actuator to drive the rotating shaft to rotate, driving the entire door to rotate and open. Due to the limited installation space, the driving force of the power source for automatic door opening and closing is limited. Therefore, a driving mechanism is usually used to perform the operations of pushing and rotating to open at the same time, and the same driving mechanism controls the two operation processes separately through the clutch.

[0004] However, due to the limitation of installation space, the size of the clutch cannot be too large, but because a large torque is required to open the door, the clutch needs to withstand a higher load, thus increasing the design and installation requirements for the clutch. Summary of the invention

[0005] The embodiment of the present application provides a refrigerator that can achieve a high load on the clutch, and the clutch has a compact structure and occupies a small space, meeting the design requirements of automatic door opening and closing.

[0006] In a first aspect, an embodiment of the present application provides a refrigerator, the refrigerator comprising:

[0007] A box body having a storage room formed therein;

[0008] The door body is rotatably mounted on the box body and is used to close the storage room;

[0009] The door opening and closing device is installed on the box body and connected to the door body.

[0010] The door opening and closing device is configured to drive the door body to rotate relative to the box body to open or close the storage room;

[0011] The door opening and closing device includes:

[0012] Power mechanism;

[0013] Push door mechanism;

[0014] Turnstile mechanism;

[0015] A first transmission mechanism, the first transmission mechanism is configured to transmit the driving force provided by the power mechanism to the door-pushing mechanism, so that the door-pushing mechanism pushes the door body open;

[0016] a second transmission mechanism, the second transmission mechanism being configured to transmit the driving force provided by the power mechanism to the swing door mechanism, so that the swing door mechanism rotates the door body to open;

[0017] The second transmission mechanism includes a clutch configured to connect or disconnect the power mechanism with the swing door mechanism;

[0018] The clutch includes:

[0019] a driving gear configured to transmit a driving force in the second transmission mechanism;

[0020] A driven gear, the driven gear is provided with a perforation, and the driven gear is transmission-connected with the swing door mechanism;

[0021] A friction member, the friction member is arranged between the driving gear and the driven gear;

[0022] Wherein, one of the driving gear and the driven gear is connected to the friction member, and the other has two states with the friction member: a separation state and a connection state;

[0023] A pushing member, which is arranged on a side of the driven gear away from the friction member;

[0024] At least one of the pusher and the friction member is provided with a through hole so that the pusher and the friction member abut against each other;

[0025] A guide assembly, the guide assembly abuts against the pusher;

[0026] A driving assembly, the driving assembly being connected to the guiding assembly;

[0027] The driving assembly is configured to: drive the guide assembly to move along the first direction, so that the guide assembly pushes the pusher to move along the second direction, and pushes the friction member to move along the second direction, thereby switching the connection state or the separation state by moving the friction member, so that the driving gear is connected or separated from the driven gear;

[0028] When the door is opened manually, the clutch separates the power mechanism from the swing door mechanism.

[0029] In this way, by setting a friction member between the driving gear and the driven gear, one of the driving gear and the driven gear is connected to the friction member, and the friction member is detachably connected to the other; a pushing member is set on the other side of the driven gear to abut the friction member; the driving component drives the guide component to move in a first direction, so that the guide component pushes the pushing member to move in a second direction, thereby abutting the friction member and causing the friction member to move in the second direction, thereby realizing the detachable connection of the friction member; the structure is simple and the overall volume is small; and the load on the clutch during the automatic opening and closing of the door is borne by the friction member, thereby improving the load-bearing capacity of the clutch.

[0030] In some embodiments of the present application, a block is provided on the side of the friction member facing the driving gear, and a slot is provided on the side of the driving gear facing the friction member. When the friction member moves along the second direction, the block and the slot cooperate with each other to connect the friction member to the driving gear.

[0031] In this way, the mutual cooperation between the clamping block and the clamping groove can ensure the transmission connection between the friction member and the driving gear.

[0032] In some embodiments of the present application, a friction column is provided on a side of the friction member away from the driving gear. The friction column is passed through the through hole and abuts against the pushing member.

[0033] In this way, the friction member and the pushing member are brought into contact with each other through the friction column arranged on the friction member, thereby pushing the friction member to move.

[0034] In some embodiments of the present application, a supporting groove is provided on a side of the pushing member facing the driven gear, and the friction column is provided in the supporting groove and abuts against a bottom wall of the supporting groove.

[0035] In this way, by arranging the abutting groove on the pushing member, the friction column is abutted in the abutting groove, thereby improving the stability of the abutment between the friction member and the pushing member, thereby improving the accuracy of the clutch.

[0036] In some embodiments of the present application, a connecting block is provided on the side of the friction member facing the driven gear, and a connecting groove is provided on the side of the driven gear facing the friction member. When the friction member moves along the second direction, the connecting block and the connecting groove cooperate with each other to connect the friction member to the driven gear.

[0037] In this way, the mutual cooperation between the connecting block and the connecting groove can ensure the transmission connection between the friction member and the driven gear.

[0038] In some embodiments of the present application, a supporting column is provided on the side of the pushing member facing the driven gear, and the supporting column is penetrated through the through hole and abuts against the friction member.

[0039] In this way, the abutment between the friction member and the pushing member is achieved through the abutment column arranged on the pushing member, thereby pushing the friction member to move.

[0040] In some embodiments of the present application, a receiving groove is provided on a side of the driving gear facing the driven gear, and the friction member is provided in the receiving groove.

[0041] In this way, by providing the accommodating groove, the distance between the driving gear and the driven gear can be reduced, the overall volume of the clutch can be reduced, and the weight of the clutch can also be reduced.

[0042] In some embodiments of the present application, the clutch further includes a reset member, which is disposed between the friction member and the driving gear, and is configured to push the friction member to move the friction member along the second direction toward the driven gear.

[0043] In this way, by setting the reset member, it can be ensured that when the driving assembly is not actuated, the friction member moves along the second direction close to the driven gear, thereby improving the accuracy of the clutch disengagement operation.

[0044] In some embodiments of the present application, the guide assembly includes a fork, which is connected to the driving assembly. The fork is provided with a guide surface on the side facing the pushing member, and the pushing member is provided with a mating surface. The guide surface abuts against the mating surface so that when the fork moves along the first direction, the pushing member moves along the second direction.

[0045] In this way, through the cooperation between the guide surface and the matching surface, the movement in the first direction is converted into the movement in the second direction, which is convenient for the arrangement of the drive assembly and helps to reduce the overall thickness of the clutch.

[0046] In some embodiments of the present application, the guide assembly includes a positioning plate and a guide plate, the positioning plate is connected to the driving assembly, the guide plate is movably connected to the positioning plate and abuts against the side of the pushing member away from the driven gear, a guide groove is provided on the door opening and closing device, a guide block is provided on the side of the guide plate away from the pushing member, and the guide block is movably provided in the guide groove so that the guide plate moves along the second direction when the positioning plate pushes the guide plate to move along the first direction.

[0047] In this way, through the cooperation between the guide block and the guide groove, when the positioning plate moves along the first direction, the guide plate is driven to move along the second direction, thereby directly pushing the pushing member to move along the second direction, reducing friction resistance, thereby facilitating reducing the power of the drive assembly, and helping to reduce the overall volume and cost of the clutch. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the implementation methods in the embodiments of the present application or the related technologies, the following is a brief introduction to the drawings required for use in the embodiments or the related technology descriptions. Obviously, the drawings described below are some embodiments of the present application, and a person skilled in the art can also obtain other drawings based on these drawings.

[0049] Figure 1A schematic diagram of the structure of a refrigerator provided in an embodiment of the present application;

[0050] Figure 2 for Figure 1 A schematic diagram of the structure of the door opening and closing device of the refrigerator shown;

[0051] Figure 3 for Figure 2 One of the exploded structural diagrams of the clutch of the door opening and closing device shown;

[0052] Figure 4 for Figure 3 A schematic diagram of the structure of the driving gear of the clutch shown;

[0053] Figure 5 for Figure 3 The schematic diagram of the structure of the clutch during disengagement operation is shown;

[0054] Figure 6 for Figure 3 The schematic diagram of the structure of the clutch during engagement operation is shown;

[0055] Figure 7 for Figure 2 The second structural schematic diagram of the clutch of the door opening and closing device shown;

[0056] Figure 8 for Figure 7 One of the exploded structural diagrams of the clutch shown;

[0057] Fig. 9 for Figure 7 The second schematic diagram of the explosion structure of the clutch shown;

[0058] Fig.10 for Figure 7 The schematic diagram of the structure of the clutch during disengagement operation is shown;

[0059] Fig.11 for Figure 7 Schematic diagram of the structure of the clutch during engagement operation.

[0060] Description of reference numerals:

[0061] 100-clutch; 10-driving gear; 11-card slot; 12-accommodating slot; 13-connecting column; 131-stop groove; 20-driven gear; 21-through hole; 22-connecting groove; 23-rotating shaft; 24-avoidance groove; 30-friction member; 31-card block; 32-friction column; 33-connecting block; 34-connecting hole; 341-stop block; 35-reset groove; 40-pushing member; 41-holding groove; 42-holding column; 43-rotating hole; 44-matching surface; 50-guide assembly; 51-shift fork ;511-guide surface;52-positioning plate;53-guide plate;531-guide block;532-avoidance hole;60-drive assembly;61-drive shaft;62-electromagnet;63-drive reset member;70-reset member;80-pad;81-guide column;200-door opening and closing device;201-power mechanism;202-first transmission mechanism;203-second transmission mechanism;204-door pushing mechanism;205-swinging door mechanism;206-guide groove;300-refrigerator;301-box;302-door body. DETAILED DESCRIPTION

[0062] In order to make the purpose, implementation mode and advantages of the present application clearer, the exemplary implementation mode of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0063] It should be noted that the brief description of terms in this application is only for the convenience of understanding the embodiments described below, and is not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their common and usual meanings.

[0064] In addition, the terms "include" and "have" and any variations thereof are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to those components expressly listed but may include other components not expressly listed or inherent to such products or devices.

[0065] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0066] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0067] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0068] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0069] A refrigerator is a refrigeration device that keeps a constant low temperature, and is also a civilian product that keeps food or other items at a constant low temperature. In the prior art, there are refrigerators with automatic door opening and closing to improve the convenience of user operation and safety of use.

[0070] Due to the suction of the door seal, the resistance of the suction aid, the pressure difference between the inside and outside, etc., the force required for the door to open is relatively large. At present, refrigerators with automatic door opening and closing usually use a push rod actuator to push the door open to a certain angle, and then rely on a rotary actuator to drive the rotating shaft to rotate, driving the entire door to rotate and open. Due to the limited installation space, the driving force of the power source for automatic door opening and closing is limited. Therefore, a driving mechanism is usually used to perform the operations of pushing and rotating to open at the same time, and the same driving mechanism controls the two operation processes separately through the clutch.

[0071] However, due to the limitation of installation space, the size of the clutch cannot be too large, but because a large torque is required to open the door, the clutch needs to withstand a higher load, thus increasing the design and installation requirements for the clutch.

[0072] In view of this, the present application provides a refrigerator, the refrigerator comprising:

[0073] A box body having a storage room formed therein;

[0074] The door body is rotatably mounted on the box body and is used to close the storage room;

[0075] The door opening and closing device is arranged on the box body and connected to the door body, and the door opening and closing device is configured to drive the door body to rotate relative to the box body to open or close the storage room;

[0076] The door opening and closing device comprises: a power mechanism, a first transmission mechanism, a second transmission mechanism, a door-pushing mechanism, a door-swinging mechanism and a clutch, wherein the first transmission mechanism is configured to transmit the driving force provided by the power mechanism to the door-pushing mechanism so that the door-pushing mechanism pushes the door body open, and the second transmission mechanism is configured to transmit the driving force provided by the power mechanism to the door-swinging mechanism so that the door-swinging mechanism rotates the door body open;

[0077] The second transmission mechanism includes a clutch configured to connect or disconnect the power mechanism with the swing door mechanism;

[0078] The clutch comprises a driving gear, a driven gear, a friction member, a pushing member, a guide assembly and a driving assembly, wherein the driving gear is configured to transmit the driving force in the second transmission mechanism, the driven gear is in driving connection with the swing door mechanism, the friction member is arranged between the driving gear and the driven gear, one of the driving gear and the driven gear is connected with the friction member, and the other has two states with the friction member: a separation state and a connection state, the pushing member is arranged on a side of the driven gear away from the friction member, the driven gear is provided with a through hole, at least one of the pushing member and the friction member is provided with a through hole so that the pushing member abuts against the friction member, the guide assembly abuts against the pushing member, and the driving assembly is connected with the guide assembly;

[0079] The driving assembly is configured to drive the guide assembly to move along the first direction, so that the guide assembly pushes the pusher to move along the second direction, and pushes the friction member to move along the second direction, thereby switching the connection state or the separation state by moving the friction member, so that the driving gear is connected or separated with the driven gear;

[0080] When the door is opened manually, the clutch separates the power mechanism from the swing door mechanism.

[0081] By arranging a friction member between the driving gear and the driven gear, one of the driving gear and the driven gear is connected to the friction member, and the friction member is detachably connected to the other; a pushing member is arranged on the other side of the driven gear to abut against the friction member; the driving component drives the guide component to move in a first direction, so that the guide component pushes the pushing member to move in a second direction, thereby abutting against the friction member, causing the friction member to move in the second direction, thereby realizing a detachable connection through the friction member; the structure is simple, the overall volume is small, and the load on the clutch during the automatic opening and closing of the door is borne by the friction member, thereby improving the load-bearing capacity of the clutch.

[0082] Figure 1 A schematic diagram of the structure of a refrigerator provided in an embodiment of the present application.

[0083] like Figure 1 As shown, the refrigerator 300 provided in the embodiment of the present application includes a box body 301, a door body 302 and a door opening and closing device 200. A storage chamber is formed inside the box body 301. The door body 302 is rotatably arranged on the box body 301. The door body 302 is used to close the storage chamber. The door opening and closing device 200 is arranged on the box body 301 and connected to the door body 302. The door opening and closing device 200 is used to drive the door body 302 to rotate to open or close the storage chamber.

[0084] Specifically, the door body 302 is hinged to the opening of the storage chamber on the box body 301 through a rotating shaft.

[0085] In some embodiments, a door body 302 is respectively disposed on both sides of the storage chamber opening, and the two door bodies 302 rotate relative to each other, thereby fully opening the storage chamber.

[0086] In other embodiments, a door body 302 is provided on one side of the storage chamber opening, and the door body 302 rotates relative to the box body 301 to open the storage chamber.

[0087] The door opening and closing device 200 is used to first push the door body 302 open a certain distance, and then drive the door body 302 to rotate to open the storage room.

[0088] Figure 2 for Figure 1 The schematic diagram of the structure of the door opening and closing device of the refrigerator is shown.

[0089] like Figure 2 As shown, the door opening and closing device 200 includes a power mechanism 201, a first transmission mechanism 202, a second transmission mechanism 203, a door push mechanism 204, a door swing mechanism 205 and a clutch 100. The power mechanism 201 is used to provide power for opening and closing the door. The first transmission mechanism 202 and the second transmission mechanism 203 are respectively connected to the power mechanism 201. The door push mechanism 204 is connected to the first transmission mechanism 202. The door swing mechanism 205 is connected to the second transmission mechanism 203. The clutch 100 is arranged on the second transmission mechanism 203. The door push mechanism 204 is used to push the door body 302 open. The door swing mechanism 205 is used to rotate the door body 302 to open.

[0090] The first transmission mechanism 202 is used to transmit the driving force provided by the power mechanism 201 to the door push mechanism 204. The second transmission mechanism 203 is used to transmit the driving force provided by the power mechanism 201 to the swing door mechanism 205. The clutch 100 is used to separate or engage the transmission connection between the second transmission mechanism 203 and the swing door mechanism 205, so that the driving force provided by the power mechanism 201 can be switched to be transmitted to the swing door mechanism 205.

[0091] When opening the door, the clutch 100 first separates the transmission connection between the second transmission mechanism 203 and the revolving door mechanism 205, and the power mechanism 201 transmits the driving force to the door-pushing mechanism 204 through the first transmission mechanism 202, so that the door-pushing mechanism 204 pushes the door body 302 open a certain distance, so that the door body 302 rotates a smaller angle; then, the clutch 100 establishes a transmission connection between the second transmission mechanism 203 and the revolving door mechanism 205, and the power mechanism 201 transmits the driving force to the revolving door mechanism 205 through the second transmission mechanism 203, so that the revolving door mechanism 205 rotates the door body 302 to open it.

[0092] Figure 3 for Figure 2 One of the exploded structural schematic diagrams of the clutch of the door opening and closing device shown. Figure 4 for Figure 3 Schematic diagram of the structure of the driving gear of the clutch shown. Figure 5 for Figure 3 The schematic diagram of the structure of the clutch during disengagement operation is shown. Figure 6 for Figure 3 Schematic diagram of the structure of the clutch during engagement operation. Figure 7 for Figure 2 The second structural schematic diagram of the clutch of the door opening and closing device shown. Figure 8 for Figure 7 One of the exploded structural diagrams of the clutch shown. Fig. 9 for Figure 7 The second schematic diagram of the explosion structure of the clutch shown. Fig.10 for Figure 7 The schematic diagram of the structure of the clutch during disengagement operation is shown. Fig.11 for Figure 7 Schematic diagram of the structure of the clutch during engagement operation.

[0093] like Figure 3 and Figure 8 As shown, the clutch 100 includes a driving gear 10, a driven gear 20, a friction member 30, a pusher 40, a guide assembly 50 and a driving assembly 60. The driving gear 10 and the driven gear 20 are rotatably arranged in the door opening and closing device 200. The axial direction of the driving gear 10 is parallel to the axial direction of the driven gear 20. The friction member 30 is arranged between the driving gear 10 and the driven gear 20. The pusher 40 is arranged on the side of the driven gear 20 away from the driving gear 10. That is, the driving gear 10, the friction member 30, the driven gear 20 and the pusher 40 are arranged in sequence. The guide assembly 50 and the driving assembly 60 are located on one side of the driving gear 10.

[0094] like Figure 5 , Figure 6 , Fig.10 and Fig.11As shown, in some embodiments, along the first direction x, the guide assembly 50 and the driving assembly 60 are located on one side of the driving gear 10, and along the second direction y, the driving gear 10, the friction member 30, the driven gear 20 and the pushing member 40 are arranged in sequence.

[0095] The driving gear 10 is used for transmission connection with the second transmission mechanism 203. The driven gear 20 is used for transmission connection with the swing door mechanism 205. One of the driving gear 10 and the driven gear 20 is transmission connected with the friction member 30, and the other has two states with the friction member 30: a disconnected state and a connected state.

[0096] When the friction member 30 is switched to connection, the driving gear 10 is connected to the driven gear 20 through the friction member 30, so that the clutch 100 connects the second transmission mechanism 203 to the swing door mechanism 205; when the friction member 30 is switched to separation, the driving gear 10 is disconnected from the driven gear 20, and the clutch 100 separates the transmission connection between the second transmission mechanism 203 and the swing door mechanism 205.

[0097] like Figure 3 As shown, in some embodiments, one side of the friction member 30 is drivingly connected to the driven gear 20 , and the other side of the friction member 30 is detachably connected to the driving gear 10 .

[0098] like Figure 8 and Fig. 9 As shown, in some embodiments, one side of the friction member 30 is drivingly connected to the driving gear 10 , and the other side of the friction member 30 is detachably connected to the driven gear 20 .

[0099] The driven gear 20 is provided with a through hole 21, and the through hole 21 is used to make the pusher 40 abut against the friction member 30. The pusher 40 is used to push the friction member 30, so that the friction member 30 is detachably connected. At least one of the pusher 40 and the friction member 30 is penetrated by the through hole 21, so that the pusher 40 abuts against the friction member 30.

[0100] The guide assembly 50 is in contact with the pusher 40, and the driving assembly 60 is connected to the guide assembly 50. The driving assembly 60 is used to provide a driving force for the guide assembly 50 to move, so that the guide assembly 50 moves along the first direction.

[0101] When the driving component 60 drives the guide component 50 to move along the first direction x, the guide component 50 can push the pushing member 40 to move along the second direction, thereby pushing the friction member 30 to move along the second direction y, so that the friction member 30 moves between the driving gear 10 and the driven gear 20, switching the connection state or the separation state, thereby connecting or separating the driving gear 10 and the driven gear 20.

[0102] In some embodiments of the present application, the first direction is perpendicular to the axial direction of the driving gear 10 , and the second direction is parallel to the axial directions of the driving gear 10 and the driven gear 20 .

[0103] The clutch 100 has a simple structure and a small overall size, and the clutch 100 is engaged by a moving friction member 30. Therefore, the friction member 30 is used to bear the torque of the driving gear 10 on the clutch 100, that is, to bear the load during the automatic door opening and closing process, which can improve the load-bearing capacity of the clutch 100.

[0104] like Figure 3 and Figure 4 As shown, in some embodiments of the present application, a block 31 is provided on the side of the friction member 30 facing the driving gear 10, and a slot 11 is provided on the side of the driving gear 10 facing the friction member 30. When the friction member 30 moves along the second direction, the block 31 and the slot 11 cooperate with each other to make the friction member 30 and the driving gear 10 transmission connected.

[0105] Specifically, when the friction member 30 moves toward the driving gear 10, the clamping block 31 falls into the clamping groove 11, thereby connecting the friction member 30 with the driving gear 10, so that the driving gear 10 is transmission-connected with the driven gear 20. The mutual cooperation between the clamping block 31 and the clamping groove 11 can ensure the transmission connection between the friction member 30 and the driving gear 10.

[0106] In some embodiments, the driving gear 10 is provided with a plurality of slots 11, which are arranged at intervals along the circumference of the driving gear 10. Correspondingly, the friction member 30 is provided with a plurality of blocks 31, which are arranged along the circumference of the friction member 30. The plurality of slots 11 cooperate with the plurality of blocks 31 to improve the strength of the transmission connection.

[0107] In some embodiments, a plurality of slots 11 are evenly arranged along the circumference of the driving gear 10. Correspondingly, a plurality of blocks 31 are evenly arranged along the circumference of the friction member 30. The evenly distributed slots 11 and blocks 31 can, on the one hand, improve the uniform mass distribution of the driving gear 10 and the friction member 30, and prevent deviation or swing during the rotation process. On the other hand, due to the cooperation between the blocks 31 and the slots 11, the evenly arranged circumferentially can also improve the stability of the transmission connection between the friction member 30 and the driving gear 10.

[0108] In some embodiments, any block 31 can be matched with any slot 11 , so that the friction member 30 can be transmission-connected with the driving gear 10 when it is rotated to a plurality of different angles.

[0109] In some embodiments, a side of the clamping block 31 facing the driving gear 10 is chamfered, and a side of the clamping groove 11 facing the friction member 30 is chamfered.

[0110] The chamfered setting can facilitate the insertion of the block 31 into the slot 11 when the friction member 30 moves toward the driving gear 10, thereby preventing interference and causing the problem of being unable to be inserted, thereby improving the efficiency of the cooperation between the block 31 and the slot 11.

[0111] In some embodiments of the present application, the friction member 30 is provided with a friction column 32 . The friction column 32 is passed through the through hole 21 and abuts against the pushing member 40 .

[0112] The through hole 21 passes through the driven gear 20 . The friction column 32 is disposed in the through hole 21 and abuts against the pushing member 40 , so that the pushing member 40 can drive the friction member 30 to move.

[0113] Specifically, the friction column 32 is arranged on the side of the friction member 30 away from the driving gear 10. The friction column 32 passes through the through hole 21 from the side of the driven gear 20 close to the friction member 30, and passes through the other side of the driven gear 20, thereby abutting against the pushing member 40 and connecting the friction member 30 to the driven gear 20 in transmission.

[0114] In some embodiments, the axial direction of the through hole 21 is parallel to the axial direction of the driven gear 20 , so that the friction column 32 can move along the axial direction of the driven gear 20 .

[0115] In some embodiments, the driven gear 20 is provided with a plurality of through holes 21. The plurality of through holes 21 are arranged at intervals along the circumference of the driven gear 20. Correspondingly, the friction member 30 is provided with a plurality of friction columns 32, and the plurality of friction columns 32 are arranged along the circumference of the friction member 30. The plurality of through holes 21 cooperates with the plurality of friction columns 32, thereby improving the strength of the transmission connection between the friction member 30 and the driven gear 20.

[0116] In some embodiments, a plurality of through-holes 21 are evenly arranged along the circumference of the driven gear 20. Correspondingly, a plurality of friction columns 32 are evenly arranged along the circumference of the friction member 30. The evenly distributed through-holes 21 and friction columns 32 can, on the one hand, improve the uniformity of the mass distribution of the driven gear 20 and the friction member 30, and prevent the driven gear 20 and the friction member 30 from deflecting or swinging during the rotation process; on the other hand, due to the cooperation of the friction columns 32 and the through-holes 21, the evenly arranged circumferentially can also improve the stability of the transmission connection between the driven gear 20 and the friction member 30.

[0117] In some embodiments of the present application, a supporting groove 41 is provided on a side of the pushing member 40 facing the driven gear 20 , and the friction column 32 is disposed in the supporting groove 41 and abuts against a bottom wall of the supporting groove 41 .

[0118] By providing the abutting groove 41 on the pushing member 40 and abutting the friction column 32 in the abutting groove 41 , the abutting stability of the friction member 30 and the pushing member 40 is improved, thereby improving the clutch accuracy.

[0119] like Figure 8 and Fig. 9 As shown, in some other embodiments of the present application, a connecting block 33 is provided on the side of the friction member 30 facing the driven gear 20, and a connecting groove 22 is provided on the side of the driven gear 20 facing the friction member 30. When the friction member 30 moves along the second direction, the connecting block 33 and the connecting groove 22 cooperate with each other to make the friction member 30 and the driven gear 20 transmission connected.

[0120] Specifically, when the friction member 30 moves toward the driven gear 20, the connecting block 33 falls into the connecting groove 22, thereby connecting the friction member 30 with the driven gear 20, so that the driving gear 10 is transmission-connected with the driven gear 20. The mutual cooperation between the connecting block 33 and the connecting groove 22 can ensure the transmission connection between the friction member 30 and the driven gear 20.

[0121] In some embodiments, the driven gear 20 is provided with a plurality of connection grooves 22, and the plurality of connection grooves 22 are arranged along the circumference of the driven gear 20. Correspondingly, the friction member 30 is provided with a plurality of connection blocks 33, and the plurality of connection blocks 33 are arranged along the circumference of the friction member 30. The plurality of connection grooves 22 cooperates with the plurality of connection blocks 33, thereby improving the strength of the transmission connection.

[0122] In some embodiments, a plurality of connection grooves 22 are evenly arranged along the circumference of the driven gear 20. Correspondingly, a plurality of connection blocks 33 are evenly arranged along the circumference of the friction member 30. The evenly distributed connection grooves 22 and connection blocks 33 can, on the one hand, improve the uniform mass distribution of the driven gear 20 and the friction member 30, and prevent deviation or swing during the rotation process. On the other hand, due to the cooperation of the connection grooves 22 and the connection blocks 33, the evenly arranged circumferentially can also improve the stability of the transmission connection between the friction member 30 and the driven gear 20.

[0123] In some embodiments, any connection block 33 can be matched with any connection groove 22, so that the friction member 30 can be transmission-connected with the driven gear 20 when it is rotated to multiple angles.

[0124] In some embodiments, a side of the connecting block 33 facing the driven gear 20 is chamfered, and a side of the connecting groove 22 facing the friction member 30 is chamfered.

[0125] The chamfer setting can facilitate the insertion of the connecting block 33 into the connecting groove 22 when the friction member 30 moves toward the driven gear 20, preventing interference and the problem of being unable to be inserted, thereby improving the efficiency of the connection groove 22 and the connecting block 33.

[0126] In some embodiments of the present application, the pushing member 40 is provided with a resisting column 42 . The resisting column 42 is passed through the through hole 21 and abuts against the friction member 30 .

[0127] An abutting column 42 is disposed in the through hole 21 and abuts against the friction member 30 , so that the pushing member 40 can drive the friction member 30 to move.

[0128] Specifically, the abutting column 42 is arranged on the side of the pushing member 40 facing the driven gear 20. The abutting column 42 passes through the through hole 21 from the side of the driven gear 20 away from the friction member 30, and passes through the other side of the driven gear 20, thereby abutting against the friction member 30 and connecting the pushing member 40 to the driven gear 20 in transmission.

[0129] In some embodiments, the axial direction of the through hole 21 is parallel to the axial direction of the driven gear 20 , so that the abutting column 42 can move along the axial direction of the driven gear 20 .

[0130] In some embodiments, the driven gear 20 is provided with a plurality of through holes 21. The plurality of through holes 21 are arranged along the circumference of the driven gear 20. Correspondingly, the pusher 40 is provided with a plurality of abutment columns 42, and the plurality of abutment columns 42 are arranged along the circumference of the pusher 40. The plurality of through holes 21 cooperates with the plurality of abutment columns 42, thereby improving the strength of the transmission connection between the pusher 40 and the driven gear 20.

[0131] In some embodiments, a plurality of through holes 21 are evenly arranged along the circumference of the driven gear 20. Correspondingly, a plurality of abutting columns 42 are evenly arranged along the circumference of the pusher 40. The evenly distributed through holes 21 and abutting columns 42 can, on the one hand, improve the uniformity of the mass distribution of the driven gear 20 and the pusher 40, and prevent the driven gear 20 and the pusher 40 from deflecting or swinging during the rotation process; on the other hand, due to the cooperation of the abutting columns 42 and the through holes 21, the evenly arranged circumferentially can also improve the stability of the transmission connection between the driven gear 20 and the pusher 40.

[0132] like Figure 4 and Fig. 9 As shown, in some embodiments of the present application, a receiving groove 12 is provided on a side of the driving gear 10 facing the driven gear 20 , and the friction member 30 is provided in the receiving groove 12 .

[0133] By providing the receiving groove 12 , the increase in the distance between the driving gear 10 and the driven gear 20 caused by the provision of the friction member 30 can be reduced, thereby reducing the overall volume of the clutch 100 and the weight of the clutch 100 .

[0134] Optionally, the depth of the accommodating groove 12 is greater than or equal to the thickness of the friction member 30 , so that the friction member 30 can be completely accommodated in the driving gear 10 .

[0135] In some embodiments, the receiving groove 12 is a circular groove, and the friction member 30 is in the shape of a disc as a whole, which is easy to process and can improve the efficiency of assembly.

[0136] In some embodiments, the axis of the receiving groove 12 coincides with the axis of the driving gear 10 , so that the mass of the driving gear 10 is evenly distributed, thereby preventing the driving gear 10 from deflecting or swinging during rotation.

[0137] like Figure 8 and Fig. 9 As shown, in some embodiments, a connecting column 13 is provided on the side of the driving gear 10 facing the driven gear 20. A connecting hole 34 is provided on the friction member 30. The connecting column 13 is inserted into the connecting hole 34, so that the friction member 30 is connected to the driving gear 10.

[0138] The friction member 30 can move along the axial direction of the connecting column 13 under the action of the connecting column 13 and the connecting hole 34 , thereby improving the accuracy of the movement of the friction member 30 .

[0139] In some embodiments, the axial direction of the connecting column 13 is parallel to the axial direction of the driving gear 10 , so that the friction member 30 moves along the axial direction of the driving gear 10 .

[0140] In some embodiments, the axis of the connecting column 13 coincides with the axis of the driving gear 10 , so that the mass of the driving gear 10 is evenly distributed, thereby preventing the driving gear 10 from deflecting or swinging during rotation.

[0141] In some embodiments, a stop groove 131 is provided on the connecting column 13. A stop block 341 is provided in the connecting hole 34. The stop groove 131 cooperates with the stop block 341, so that the friction member 30 can rotate with the rotation of the driving gear 10, that is, the friction member 30 and the driving gear 10 are transmission-connected through the stop groove 131 and the stop block 341.

[0142] Specifically, the anti-rotation groove 131 is opened along the axial direction of the connecting column 13 , and the anti-rotation block 341 extends along the axial direction of the connecting hole 34 , so that the friction member 30 maintains a transmission connection with the driving gear 10 when moving along the axial direction of the connecting column 13 .

[0143] In some embodiments, the driven gear 20 is provided with a rotating shaft 23. The pusher 40 is provided with a rotating hole 43. The rotating shaft 23 is passed through the rotating hole 43, so that the driven gear 20 is connected to the pusher 40.

[0144] The pushing member 40 can move along the rotating shaft 23 under the action of the rotating shaft 23 and the rotating hole 43 , thereby resisting the movement of the friction member 30 , thereby improving the driving accuracy.

[0145] In some embodiments, the axis of the rotating shaft 23 coincides with the axis of the driven gear 20 , so that the mass distribution of the driven gear 20 is uniform, thereby preventing the driven gear 20 from deflecting or swinging during the rotation process.

[0146] In some embodiments, a side of the driven gear 20 facing the pusher 40 is provided with an escape groove 24. The pusher 40 is disposed in the escape groove 24.

[0147] By setting the avoidance groove 24, the increase in the structural thickness caused by the need for the pusher 40 to move in the axial direction of the driven gear 20 can be reduced, thereby reducing the overall volume of the clutch 100 and the weight of the clutch 100.

[0148] In some embodiments, the depth of the avoidance groove 24 is greater than or equal to the thickness of the pushing member 40 , so that the pushing member 40 can be completely accommodated in the driven gear 20 .

[0149] In some embodiments, the avoidance groove 24 is a circular groove, and the pushing member 40 is disc-shaped as a whole, which is easy to process and can improve assembly efficiency.

[0150] In some embodiments, the axis of the avoidance groove 24 coincides with the axis of the driven gear 20 , so that the mass of the driven gear 20 is evenly distributed, thereby preventing the driven gear 20 from deflecting or swinging during rotation.

[0151] like Figure 3 , Figure 8 and Fig. 9 As shown, in some embodiments of the present application, the clutch 100 further includes a reset member 70 , and the reset member 70 is used to push the friction member 30 so that the friction member 30 moves along the second direction close to the driven gear 20 .

[0152] Specifically, the reset member 70 is disposed between the friction member 30 and the driving gear 10 , so as to push the friction member 30 to move toward the driven gear 20 .

[0153] In some embodiments, the reset element 70 is an elastic reset element.

[0154] Specifically, the reset member 70 may be a spring.

[0155] like Figure 3 As shown, in some embodiments of the present application, when the reset member 70 is in a compressed state, the reset member 70 is pressed and compressed by the friction member 30, so that the friction member 30 is connected to the driving gear 10, and the clutch 100 is in a connected state. When the reset member 70 is in a reset state, the reset member 70 presses against the friction member 30, so that the friction member 30 is away from the driving gear 10, and the clutch 100 is in a disengaged state, thereby improving the stability of the transmission connection of the clutch 100.

[0156] like Figure 8 and Fig. 9As shown, in some other embodiments of the present application, when the reset member 70 is in a compressed state, the reset member 70 is pressed and compressed by the friction member 30, so that the friction member 30 is away from the driven gear 20, and the clutch 100 is in a disengaged state; and when the reset member 70 is in a reset state, the reset member 70 presses against the friction member 30, so that the friction member 30 is connected to the driven gear 20, and the clutch 100 is in a connected state, thereby improving the stability of the transmission connection of the clutch 100.

[0157] In some embodiments, the reset member 70 is sleeved on the connecting column 13 , thereby improving the assembly efficiency of the reset member 70 and ensuring that the position of the reset member 70 in the clutch 100 does not change.

[0158] like Figure 3 As shown, in some embodiments of the present application, the guide assembly 50 includes a shift fork 51, and the shift fork 51 is connected to the driving assembly 60. The driving assembly 60 is used to drive the shift fork 51 to move toward the pusher 40 along the first direction.

[0159] The fork 51 is provided with a guide surface 511 on one side facing the pusher 40, and the pusher 40 is provided with a matching surface 44. The guide surface 511 abuts against the matching surface 44, so that when the fork 51 moves along the first direction, the pusher 40 moves along the second direction.

[0160] In some embodiments, the guide surface 511 and the mating surface 44 are both inclined surfaces. In other embodiments, the guide surface 511 and the mating surface 44 can also be arc surfaces, both of which can change the moving direction without specific limitation.

[0161] By cooperating with the guide surface 511 and the mating surface 44, the first direction movement of the fork 51 can be converted into the second direction movement of the pusher 40, thereby facilitating the arrangement of the drive assembly 60 and helping to reduce the overall thickness of the clutch 100, that is, the dimension in the second direction.

[0162] like Figure 8 and Fig. 9 As shown, in some embodiments of the present application, the guide assembly 50 includes a positioning plate 52 and a guide plate 53, the positioning plate 52 is connected to the driving assembly 60, and the guide plate 53 is movably connected to the positioning plate 52 and abuts against a side of the pusher 40 away from the driven gear 20. The driving assembly 60 is used to drive the positioning plate 52 to move along the first direction, so that when the guide plate 53 moves along the first direction, it pushes the pusher 40 along the second direction.

[0163] The door opening and closing device 200 is provided with a guide groove 206, and a guide block 531 is provided on the side of the guide plate 53 away from the pusher 40, and the guide block 531 is movably arranged in the guide groove 206. The guide groove 206 cooperates with the guide block 531, so that when the guide plate 53 moves in the first direction, it can also move in the second direction.

[0164] In some embodiments, the guide groove 206 is an oblique groove, and the guide block 531 is a hemispherical protrusion.

[0165] Through the cooperation between the guide block 531 and the guide groove 206, the movement of the positioning plate 52 along the first direction can be converted into the movement of the guide plate 53 along the first direction and the second direction, thereby directly pushing the pushing member 40 to move along the second direction, reducing the friction resistance, thereby facilitating the reduction of the power of the driving assembly 60, and helping to reduce the overall volume and cost of the clutch 100.

[0166] In some embodiments, the guide plate 53 is provided with an avoidance hole 532 , and the rotating shaft 23 passes through the rotating hole 43 and the avoidance hole 532 , thereby limiting the movement of the guide plate 53 and the pushing member 40 and improving the operating accuracy of the clutch 100 .

[0167] In some embodiments of the present application, the driving assembly 60 includes a driving shaft 61 and an electromagnet 62. The driving shaft 61 is movably disposed in the electromagnet 62 along a first direction. The shift fork 51 or the positioning plate 52 is connected to a side of the driving shaft 61 facing the pusher 40.

[0168] The electromagnet 62 is used to generate a magnetic force when powered on, so that the driving shaft 61 moves along a first direction, thereby driving the shift fork 51 or the positioning plate 52 to move.

[0169] The control method of the electromagnet 62 is simple, the control is sensitive, and the driving accuracy is high.

[0170] In some embodiments of the present application, the driving assembly 60 further includes a driving reset member 63 , which is disposed on the driving shaft 61 , and is used to reset the driving shaft 61 when the electromagnet 62 is not energized.

[0171] like Figure 3 As shown, in some embodiments, the driving reset member 63 is disposed on a side of the driving shaft 61 away from the pushing member 40 , and the driving reset member 63 is used to move the driving shaft 61 in a direction away from the pushing member 40 .

[0172] like Figure 8 and Fig. 9 As shown, in some embodiments, the driving reset member 63 is disposed on a side of the driving shaft 61 close to the pushing member 40 , and the driving reset member 63 is used to move the driving shaft 61 toward a direction close to the pushing member 40 .

[0173] In some embodiments, the driving reset member 63 is an elastic reset member.

[0174] Specifically, the driving reset member 63 may be a spring. The driving reset member 63 is sleeved on the driving shaft 61 , thereby improving the assembly efficiency of the driving reset member 63 .

[0175] like Figure 3 As shown, in some embodiments of the present application, the clutch 100 further includes a backing plate 80. The backing plate 80 is disposed between the driving gear 10 and the friction member 30. The backing plate 80 relieves the friction between the driving gear 10 and the friction member 30 by separating the driving gear 10 and the friction member 30 when they are separated.

[0176] like Figure 3 , Figure 8 and Fig. 9 As shown, in some embodiments of the present application, a reset groove 35 is provided on the friction member 30. The reset member 70 is disposed in the reset groove 35.

[0177] like Figure 3 As shown, in some embodiments, the reset groove 35 and the friction column 32 are disposed on both sides of the friction member 30 opposite to each other, thereby reducing the size of the friction member 30 .

[0178] In some embodiments, a guide post 81 is disposed on the backing plate 80 . The guide post 81 is disposed in the reset groove 35 , so as to guide the movement of the friction member 30 .

[0179] In some embodiments, the reset grooves 35 are evenly arranged around the circumference of the friction member 30 , and the guide pillars 81 and the reset members 70 are staggered in the reset grooves 35 .

[0180] like Figure 5 and Figure 6 As shown, in some embodiments of the present application, when the clutch 100 is disengaged, the electromagnet 62 is not energized, and the reset member 63 is driven to push the drive shaft 61 to move in a direction away from the push member 40, so that the shift fork 51 is away from the push member 40. At this time, the reset member 70 pushes the friction member 30 to move in the direction of the driven gear 20, so that the block 31 is separated from the slot 11. At the same time, the friction member 30 will resist the push member 40 through the friction column 32, so that the push member 40 is away from the driven gear 20 along the rotating shaft 23. At this time, when the driving gear 10 rotates, the friction member 30 will rotate together, but at this time, the friction member 30 is separated from the driven gear 20 and will not drive the driven gear 20 to rotate.

[0181] When the clutch 100 is engaged, the electromagnet 62 is energized, and the electromagnet 62 pushes the drive shaft 61 to move toward the pushing member 40, so that the shift fork 51 is close to the pushing member 40, and under the action of the guide surface 511 and the matching surface 44, the pushing member 40 is close to the driven gear 20 along the second direction, and the pushing member 40 abuts against the friction column 32 on the friction member 30, so that the friction member 30 moves toward the driving gear 10, so that the block 31 is engaged with the slot 11. At this time, when the driving gear 10 rotates, the friction member 30 will rotate together, and at the same time, the driven gear 20 connected to the friction member 30 will rotate together driven by the friction member 30.

[0182] like Fig.10 and Fig.11 As shown, in other embodiments of the present application, when the clutch 100 is performing a disengagement operation, the electromagnet 62 is not energized, and the driving reset member 63 pushes the driving shaft 61 to move toward the pushing member 40, so that the pushing member 40 moves along the rotating shaft 23, and the abutting column 42 on the pushing member 40 moves through the through hole 21 on the driven gear 20, pushing the friction member 30 abutting against the abutting column 42 away from the driven gear 20, thereby disengaging the connecting block 33 from the connecting groove 22. At this time, when the driving gear 10 rotates, the friction member 30 will rotate together, but at this time, the friction member 30 is separated from the driven gear 20 and will not drive the driven gear 20 to rotate.

[0183] When the clutch 100 is engaged, the electromagnet 62 is energized, and the electromagnet 62 pushes the drive shaft 61 to move away from the pusher 40, so that the guide plate 53 moves away from the driven gear 20. At this time, the reset member 70 pushes the friction member 30 to move toward the driven gear 20, so that the connecting block 33 is engaged with the connecting groove 22. At the same time, the friction member 30 abuts against the abutting column 42, so that the abutting column 42 is retracted into the through hole 21 of the driven gear 20, so that the pusher 40 is away from the driven gear 20 along the rotating shaft 23. At this time, when the driving gear 10 rotates, the friction member 30 will rotate together, and at the same time, the driven gear 20 connected to the friction member 30 will rotate together under the drive.

[0184] The refrigerator 300 provided in the embodiment of the present application includes: a body 301, in which a storage chamber is formed; a door body 302, which is rotatably provided on the body 301, and the door body 302 is used to close the storage chamber; a door opening and closing device 200, which is provided on the body 301 and connected to the door body 302, and the door opening and closing device 200 is configured to drive the door body 302 to rotate relative to the body 301 to open or close the storage chamber.

[0185] The door opening and closing device 200 includes a power mechanism 201, a first transmission mechanism 202, a second transmission mechanism 203, a door pushing mechanism 204, a door rotating mechanism 205 and a clutch 100. The first transmission mechanism 202 is configured to transmit the driving force provided by the power mechanism 201 to the door pushing mechanism 204, so that the door pushing mechanism 204 pushes the door body 302 open. The second transmission mechanism 203 is configured to transmit the driving force provided by the power mechanism 201 to the door rotating mechanism 205, so that the door rotating mechanism 205 rotates the door body 302 to open it.

[0186] The clutch 100 is connected to the second transmission mechanism 203 , and the clutch 100 is configured to connect or disconnect the second transmission mechanism 203 with the swing door mechanism 205 .

[0187] The clutch 100 includes a driving gear 10, a driven gear 20, a friction member 30, a pusher 40, a guide assembly 50 and a driving assembly 60. The driving gear 10 is connected to the second transmission mechanism 203, the driven gear 20 is connected to the swing door mechanism 205, the friction member 30 is arranged between the driving gear 10 and the driven gear 20, one of the driving gear 10 and the driven gear 20 is connected to the friction member 30, and the other has two states with the friction member 30: a disconnected state and a connected state. The pusher 40 is arranged at a position where the driven gear 20 is away from the friction member 30. 0, the driven gear 20 is provided with a through hole 21, one of the pushing member 40 and the friction member 30 is penetrated with the through hole 21, so that the pushing member 40 abuts against the friction member 30, the guide assembly 50 abuts against the pushing member 40, and the driving assembly 60 is connected to the guide assembly 50; the driving assembly 60 is configured to drive the guide assembly 50 to move along the first direction, so that the guide assembly 50 pushes the pushing member 40 to move along the second direction, and pushes the friction member 30 to move along the second direction, so that the driving gear 10 is connected or separated from the driven gear 20 by moving the friction member 30.

[0188] By setting a friction member 30 between the driving gear 10 and the driven gear 20, one of the driving gear 10 and the driven gear 20 is connected to the friction member 30, and the friction member 30 is detachably connected to the other. A pushing member 40 is set on the other side of the driven gear 20 to abut against the friction member 30. The driving component 60 drives the guide component 50 to move in the first direction, so that the guide component 50 pushes the pushing member 40 to move in the second direction, thereby abutting against the friction member 30 and causing the friction member 30 to move in the second direction, thereby realizing the detachable connection of the friction member 30. The structure is simple and the overall volume is small. The friction member 30 bears the load on the clutch 100 during the automatic opening and closing of the door, thereby improving the load bearing capacity of the clutch 100.

[0189] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0190] For the convenience of explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A refrigerator, characterized in that: The refrigerator comprises: A box body (301) having a storage room formed therein; A door body (302) is rotatably mounted on the box body (301), and the door body (302) is used to close the storage chamber; A door opening and closing device (200) is arranged on the box body (301) and connected to the door body (302); The door opening and closing device (200) is configured to drive the door body (302) to rotate relative to the box body (301) to open or close the storage chamber; The door opening and closing device (200) comprises: Power mechanism (201); Door push mechanism (204); Revolving door mechanism (205); a first transmission mechanism (202), the first transmission mechanism (202) being configured to: transmit the driving force provided by the power mechanism (201) to the door-pushing mechanism (204), so that the door-pushing mechanism (204) pushes the door body (302) open; a second transmission mechanism (203), the second transmission mechanism (203) being configured to transmit the driving force provided by the power mechanism (201) to the swing door mechanism (205), so that the swing door mechanism (205) swings the door body (302) open; The second transmission mechanism (203) comprises a clutch (100), and the clutch (100) is configured to connect or disconnect the power mechanism (201) and the swing door mechanism (205); Wherein, the clutch (100) comprises: a driving gear (10), wherein the driving gear (10) is configured to transmit a driving force in the second transmission mechanism (203); A driven gear (20), wherein the driven gear (20) is provided with a through hole (21), and the driven gear (20) is transmission-connected to the swing door mechanism (205); A friction member (30), the friction member (30) being arranged between the driving gear (10) and the driven gear (20); wherein one of the driving gear (10) and the driven gear (20) is connected to the friction member (30), and the other has two states with the friction member (30): a disconnected state and a connected state; A pushing member (40), wherein the pushing member (40) is arranged on a side of the driven gear (20) away from the friction member (30); Wherein, at least one of the pushing member (40) and the friction member (30) is provided with the through hole (21) so that the pushing member (40) abuts against the friction member (30); A guide assembly (50), wherein the guide assembly (50) abuts against the pushing member (40); and a driving assembly (60), wherein the driving assembly (60) is connected to the guiding assembly (50); The driving assembly (60) is configured to: drive the guide assembly (50) to move along a first direction, so that the guide assembly (50) pushes the pushing member (40) to move along a second direction, and pushes the friction member (30) to move along the second direction, thereby switching the connection state or the separation state by moving the friction member (30), so that the driving gear (10) is connected to or separated from the driven gear (20); When the door is opened manually, the clutch (100) separates the power mechanism (201) from the swing door mechanism (205).

2. The refrigerator according to claim 1, characterized in that: A clamping block (31) is provided on one side of the friction member (30) facing the driving gear (10), and a clamping groove (11) is provided on one side of the driving gear (10) facing the friction member (30); when the friction member (30) moves along the second direction, the clamping block (31) and the clamping groove (11) cooperate with each other to connect the friction member (30) to the driving gear (10).

3. The refrigerator according to claim 2, characterized in that: A friction column (32) is provided on a side of the friction member (30) away from the driving gear (10); the friction column (32) is penetrated through the through hole (21) and abuts against the pushing member (40).

4. The refrigerator according to claim 3, characterized in that: A supporting groove (41) is provided on one side of the pushing member (40) facing the driven gear (20), and the friction column (32) is arranged in the supporting groove (41) and abuts against the bottom wall of the supporting groove (41).

5. The refrigerator according to claim 1, characterized in that: A connecting block (33) is provided on a side of the friction member (30) facing the driven gear (20), and a connecting groove (22) is provided on a side of the driven gear (20) facing the friction member (30). When the friction member (30) moves along the second direction, the connecting block (33) and the connecting groove (22) cooperate with each other to connect the friction member (30) to the driven gear (20).

6. The refrigerator according to claim 5, characterized in that: A supporting column (42) is provided on one side of the pushing member (40) facing the driven gear (20); the supporting column (42) is penetrated through the through hole (21) and abuts against the friction member (30).

7. The refrigerator according to any one of claims 1 to 6, characterized in that: A receiving groove (12) is provided on a side of the driving gear (10) facing the driven gear (20), and the friction member (30) is arranged in the receiving groove (12).

8. The refrigerator according to any one of claims 1 to 6, characterized in that: The clutch (100) further comprises a reset member (70), wherein the reset member (70) is arranged between the friction member (30) and the driving gear (10), and the reset member (70) is configured to push the friction member (30) so that the friction member (30) moves toward the driven gear (20) along a second direction.

9. The refrigerator according to any one of claims 1 to 6, characterized in that: The guide assembly (50) comprises a shift fork (51), the shift fork (51) being connected to the drive assembly (60), the shift fork (51) being provided with a guide surface (511) on a side facing the pusher (40), the pusher (40) being provided with a matching surface (44), the guide surface (511) being in contact with the matching surface (44), so that when the shift fork (51) moves along the first direction, the pusher (40) is moved along the second direction.

10. The refrigerator according to any one of claims 1 to 6, characterized in that: The guide assembly (50) comprises a positioning plate (52) and a guide plate (53). The positioning plate (52) is connected to the driving assembly (60). The guide plate (53) is movably connected to the positioning plate (52) and abuts against a side of the pushing member (40) away from the driven gear (20). A guide groove (206) is provided on the door opening and closing device (200). A guide block (531) is provided on a side of the guide plate (53) away from the pushing member (40). The guide block (531) is movably arranged in the guide groove (206) so that when the positioning plate (52) pushes the guide plate (53) to move along the first direction, the guide plate (53) moves along the second direction.

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