Refrigerator

Abstract

The utility model provides a refrigerator. The refrigerator comprises a refrigerator body. The door body is connected to the box body in a sliding manner; an automatic switching unit includes: a driving mechanism configured to provide a driving force; the executing mechanism is configured to move away from the box body or move close to the box body under the action of driving force; the clutch mechanism comprises a first clutch gear, a second clutch gear and a third clutch gear which are coaxially arranged and can rotate relatively, one of the first clutch gear and the second clutch gear is in transmission connection with the driving mechanism, and the other one of the first clutch gear and the second clutch gear is in transmission connection with the executing mechanism; the sliding key is provided with a first protruding part, and the first protruding part is used for being meshed with or separated from the inner teeth of the first clutch gear so that the clutch mechanism can be switched to be in the connected state or the separated state. According to the invention, the problem that the clutch driving gear and the third clutch gear are stuck can be solved, and meshing transmission is kept.

Description

Technical Field

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

[0002] Refrigerators are a common refrigeration equipment. Their sliding doors are in line with people's living habits and are therefore popular in the market. With the improvement of living standards, people have a higher demand for the automation of refrigerator doors. Refrigerators are equipped with automatic door opening and closing devices to improve the intelligence of refrigerators and improve user experience.

[0003] In the process of conceiving and implementing this application, the applicant found that there are at least the following problems: when the clutch in the automatic door opening and closing device is in the switching state, the clutch gear rotates relative to the sliding key, and when the clutch rotates, the clutch gear also rotates synchronously. Considering that the door can be opened and closed automatically regardless of the state of the door body, the first contact point between the incomplete gear and the clutch gear is not fixed. Therefore, when the tooth top of the incomplete gear contacts the tooth top of the clutch gear, the two gears are in a stuck state, which makes the two gears unable to mesh.

[0004] The preceding description is intended to provide general background information and does not necessarily constitute prior art.

[0005] Application Contents

[0006] The main purpose of the present application is to provide a refrigerator that can solve the problem of a clutch drive gear and a third clutch gear being stuck and maintain meshing transmission.

[0007] To achieve the above objectives, in a first aspect, the present application provides a refrigerator, comprising:

[0008] Box;

[0009] The door body is slidably connected to the box body;

[0010] Automatic switch unit, comprising:

[0011] a drive mechanism configured to provide a driving force;

[0012] an actuator configured to move away from the housing or toward the housing under the action of a driving force;

[0013] The clutch mechanism comprises:

[0014] A first clutch gear, a second clutch gear, a third clutch gear and a sliding key, wherein the first clutch gear, the second clutch gear and the third clutch gear are coaxially arranged and can rotate relatively, one of the first clutch gear and the second clutch gear is transmission-connected to the driving mechanism, and the other is transmission-connected to the actuator; the sliding key has a first protrusion, and the first protrusion is used to mesh with or disengage the internal teeth of the first clutch gear to switch the clutch mechanism to an engaged state or a disengaged state;

[0015] The clutch motor and the clutch drive gear are connected to the output shaft of the clutch motor, and at least part of the clutch drive gear has a deformation part. When the tooth top of the clutch drive gear contacts the tooth top of the third clutch gear, the deformation part moves in the direction away from the tooth top of the third clutch gear under the pressure of the tooth top of the third clutch gear, so that the clutch drive gear is meshed with the third clutch gear.

[0016] The beneficial effect of the present application is that through the setting of the deformation part, when the tooth tops of the clutch drive gear and the tooth tops of the third clutch gear are in contact, which means that the two will be in a stuck state, the deformation part moves by itself during squeezing to solve the stuck state at this time, and then the deformation part continues to rotate a certain angle after moving, and after leaving the dead point, the deformation part rebounds into the tooth groove of the third clutch gear, so that the clutch drive gear and the third clutch gear are meshed, restoring normal meshing transmission and completing the torque transmission.

[0017] Based on the above technical solution, the present application can also be improved as follows.

[0018] In some optional embodiments, the clutch drive gear is an incomplete gear;

[0019] Along the rotation direction of the clutch driving gear, a portion of the clutch driving gear close to the third clutch gear has a deformation portion.

[0020] It should be noted that, considering the strength of the clutch drive gear, the deformation part is provided to solve the problem of sticking. Therefore, the deformation part is provided on the part of the clutch drive gear close to the third clutch gear.

[0021] In some optional embodiments, the deformation part is a flexible part, and the deformation part is deformed along the direction away from the tooth top of the third clutch gear under the pressure of the tooth top of the third clutch gear;

[0022] Alternatively, the deformation portion is an elastic member, and the elastic member moves in a direction away from the tooth top of the third clutch gear under the pressure of the tooth top of the third clutch gear.

[0023] It should be noted that the deformation portion is made of a flexible material, and can be deformed under the extrusion of the tooth top of the third clutch gear to solve the problem of sticking.

[0024] In some optional embodiments, the clutch drive gear has a plurality of first transmission teeth, the plurality of first transmission teeth are spaced apart in the circumference of a portion of the clutch drive gear, and the deformation portion is located at the tooth tops of at least a portion of the first transmission teeth.

[0025] In some optional embodiments, the clutch drive gear further includes a second elastic member, and the second elastic member is connected to the first transmission tooth;

[0026] The third clutch gear has a plurality of second transmission teeth, which are spaced apart in the circumference of the third clutch gear. When the tooth tops of the first transmission teeth contact the tooth tops of the second transmission teeth, the second elastic member is located between the first transmission teeth and the side wall of the clutch drive gear in a compressed state.

[0027] In some optional embodiments, a moving groove is provided on the clutch driving gear, the moving groove is extended along the radial direction of the clutch driving gear, and the notch of the moving groove faces the second transmission tooth;

[0028] When the tooth top of the first transmission tooth contacts the tooth top of the second transmission tooth, the deformation portion and the second elastic member move in the moving groove in a direction away from the tooth top of the second transmission tooth.

[0029] In some optional embodiments, the clutch drive gear further includes a rotating member and a transmission member, the transmission member is an arc-shaped member and is located on the circumference of the rotating member, and a plurality of first transmission teeth are arranged on the transmission member at intervals along the extension direction of the transmission member;

[0030] The clutch driving gear is also provided with a notch, which is communicated with the outer side of the rotating member, and the notch is located between the transmission member and the rotating member, so that part of the transmission member is suspended on the rotating member.

[0031] It should be noted that the setting of the notch enables the first transmission tooth on the transmission member to move toward the center of the rotating member under the compression of the second transmission tooth on the third clutch gear, and the width of the notch becomes narrower at this time.

[0032] In some optional embodiments, the clutch drive gear further includes a connecting member, which is used to connect the transmission member and the rotating member and is located in the middle of the transmission member;

[0033] There are at least two notches, and the at least two notches are located on opposite sides of the connecting member in the rotation direction of the rotating member.

[0034] In some optional embodiments, along the radial direction of the rotating member, the thickness of the first transmission tooth is between 1 mm and 4 mm; and / or,

[0035] Along the radial direction of the rotating part, the thickness of the transmission part is between 1 mm and 1.5 mm.

[0036] It should be noted that in order to reduce the risk, if the structure allows, it should be ensured that as many first transmission teeth as possible have deformation capacity, and the cantilever structure is the simplest and lowest-cost solution.

[0037] In a second aspect, the present application also provides a refrigerator, comprising:

[0038] Box;

[0039] The door body is slidably connected to the box body;

[0040] Automatic switch unit, comprising:

[0041] a drive mechanism configured to provide a driving force;

[0042] an actuator configured to move away from the housing or toward the housing under the action of a driving force;

[0043] The clutch mechanism is arranged between the driving mechanism and the actuator. The clutch mechanism includes a clutch driving gear and a clutch gear. At least part of the clutch driving gear has a deformation part. When the tooth top of the clutch driving gear contacts the tooth top of the clutch gear, the deformation part moves under the pressure of the tooth top of the clutch gear to make the clutch driving gear mesh with the clutch gear.

[0044] The refrigerator provided in the present application includes a cabinet; a door body, which is slidably connected to the cabinet; an automatic switch unit, which includes: a driving mechanism, which is configured to provide a driving force; an actuator, which is configured to move away from the cabinet or move closer to the cabinet under the action of the driving force; a clutch mechanism, which includes: a first clutch gear, a second clutch gear and a third clutch gear that are coaxially arranged and relatively rotatable, one of the first clutch gear and the second clutch gear is transmission-connected to the driving mechanism, and the other is transmission-connected to the actuator; a sliding key, the sliding key has a first protrusion, and the first protrusion is used to engage or disengage with the internal teeth of the first clutch gear to switch the clutch mechanism to an engaged state or a disengaged state; a clutch motor and a clutch drive gear, the clutch drive gear is connected to the output shaft of the clutch motor, and at least part of the clutch drive gear has a deformation portion, and when the tooth top of the clutch drive gear contacts the tooth top of the third clutch gear, the deformation portion moves in a direction away from the tooth top of the third clutch gear under the extrusion of the tooth top of the third clutch gear, so that the clutch drive gear is meshed with the third clutch gear.

[0045] Through the setting of the deformation part, when the tooth tops of the clutch drive gear and the tooth tops of the third clutch gear are in contact, which means that the two will be in a stuck state, the deformation part moves by itself during squeezing to solve the stuck state at this time, and then the deformation part continues to rotate a certain angle after moving, and after leaving the dead point, the deformation part rebounds into the tooth groove of the third clutch gear, so that the clutch drive gear and the third clutch gear are meshed, restoring normal meshing transmission and completing the torque transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0047] Figure 1 A schematic structural diagram of a refrigerator from a first perspective provided in an embodiment of the present application;

[0048] Figure 2 A schematic diagram of the structure of a refrigerator in a first state at a second viewing angle provided by an embodiment of the present application;

[0049] Figure 3 A schematic diagram of the structure of a refrigerator in a second state at a second viewing angle provided by an embodiment of the present application;

[0050] Figure 4 A schematic structural diagram of an automatic switch unit in a refrigerator from a first perspective provided in an embodiment of the present application;

[0051] Figure 5 A schematic structural diagram of an automatic switch unit in a refrigerator from a second perspective provided in an embodiment of the present application;

[0052] Figure 6 A schematic structural diagram of an automatic switch unit in a refrigerator from a third perspective provided in an embodiment of the present application;

[0053] Figure 7 An exploded view of an automatic switch unit in a refrigerator provided by an embodiment of the present application;

[0054] Figure 8 A schematic diagram of the assembly of a third clutch gear and a clutch drive gear in a refrigerator in a first state provided by an embodiment of the present application;

[0055] Fig. 9 A schematic diagram of the assembly of a third clutch gear and a clutch drive gear in a refrigerator in a second state provided by an embodiment of the present application;

[0056] Fig.10It is a schematic diagram of the assembly of the third clutch gear and another clutch drive gear in the refrigerator in the first state provided by the embodiment of the present application;

[0057] Fig.11 This is a schematic diagram of the structure of the clutch drive gear in the refrigerator provided in an embodiment of the present application.

[0058] Description of reference numerals:

[0059] 100-Refrigerator;

[0060] 110- box body;

[0061] 120-door body; 121-first door body; 1211-hinge; 122-second door body; 1221-guide rail pair;

[0062] 12211-fixed guide rail; 12212-sliding guide rail;

[0063] 140-driving mechanism; 141-driving motor; 142-first worm; 143-first worm wheel;

[0064] 150-actuating mechanism; 151-actuating rack;

[0065] 160-transmission gear train; 161-first transmission gear;

[0066] 170-clutch mechanism; 171-clutch motor; 174-first clutch gear; 175-second clutch gear; 176-third clutch gear; 1761-second transmission tooth; 178-sliding key; 179-clutch drive gear; 1791-first transmission tooth; 17911-deformation part; 1792-second elastic member; 1793-rotating member; 1794-transmission member; 1795-connecting member; 1796-notch. DETAILED DESCRIPTION

[0067] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are 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 the present application. All other embodiments obtained are within the scope of protection of the present application. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0068] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0069] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0070] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0071] At present, in the process of conceiving and implementing this application, the applicant has found that there are at least the following problems: when the clutch in the automatic door opening and closing device is in the switching state, the clutch gear rotates relative to the sliding key, and when the clutch rotates, the clutch gear also rotates synchronously. Considering that the door can be opened and closed automatically regardless of the state of the door body, the first contact point between the incomplete gear and the clutch gear is not fixed. Therefore, when the tooth top of the incomplete gear contacts the tooth top of the clutch gear, the two gears are in a "stuck" state, which makes the two gears unable to mesh.

[0072] In order to overcome the defects in the prior art, the refrigerator provided in the present application, through the arrangement of the deformation part, when the tooth top of the clutch drive gear is in contact with the tooth top of the third clutch gear, which means that the two will be in a stuck state, the deformation part moves by itself when squeezed to solve the stuck state at this time, and then the deformation part continues to rotate a certain angle after moving, and after leaving the dead point, the deformation part rebounds into the tooth groove of the third clutch gear, so that the clutch drive gear is meshed with the third clutch gear, restoring normal meshing transmission and completing the transmission of torque.

[0073] The contents of the present application will be described in detail below in conjunction with the accompanying drawings so that those skilled in the art can understand the contents of the present application more clearly and in detail.

[0074] Figure 1 This is a schematic structural diagram of a refrigerator from a first perspective provided in an embodiment of the present application. Figure 2 This is a schematic diagram of the structure of a refrigerator in a first state at a second viewing angle provided by an embodiment of the present application. Figure 3 A schematic diagram of the structure of a refrigerator in a second state at a second viewing angle provided by an embodiment of the present application, Figure 4 This is a schematic diagram of the structure of the automatic switch unit in the refrigerator from a first perspective provided in an embodiment of the present application. Figure 5 This is a schematic diagram of the structure of the automatic switch unit in the refrigerator from a second perspective provided in an embodiment of the present application. Figure 6 This is a schematic diagram of the structure of the automatic switch unit in the refrigerator from a third perspective provided in an embodiment of the present application. Figure 7 This is an exploded view of the automatic switch unit in the refrigerator provided in the embodiment of the present application. Figure 8 This is a schematic diagram of the assembly of a third clutch gear and a clutch drive gear in a refrigerator in a first state provided by an embodiment of the present application. Fig. 9 This is a schematic assembly diagram of a third clutch gear and a clutch drive gear in a refrigerator in a second state provided in an embodiment of the present application.

[0075] like Figures 1 to 9 As shown, the embodiment of the present application provides a refrigerator 100, including:

[0076] Box 110;

[0077] The door body 120 is slidably connected to the box body 110;

[0078] Automatic switch unit, comprising:

[0079] a driving mechanism 140 configured to provide a driving force;

[0080] an actuator 150 , which is configured to move away from the housing 110 or move closer to the housing 110 under the action of a driving force;

[0081] The clutch mechanism 170 comprises:

[0082] A first clutch gear 174, a second clutch gear 175 and a third clutch gear 176 are coaxially arranged and relatively rotatable, one of the first clutch gear 174 and the second clutch gear 175 is transmission-connected to the driving mechanism 140, and the other is transmission-connected to the actuator 150;

[0083] A sliding key 178, wherein the sliding key 178 has a first protrusion, and the first protrusion is used to engage with or disengage the internal teeth of the first clutch gear 174 to switch the clutch mechanism 170 to an engaged state or a disengaged state;

[0084] The clutch motor 171 and the clutch driving gear 179, the clutch driving gear 179 is connected to the output shaft of the clutch motor 171, and at least part of the clutch driving gear 179 has a deformation portion 17911. When the tooth top of the clutch driving gear 179 contacts the tooth top of the third clutch gear 176, the deformation portion 17911 moves along the tooth top direction away from the third clutch gear 176 under the extrusion of the tooth top of the third clutch gear 176, so that the clutch driving gear 179 is meshed with the third clutch gear 176.

[0085] Through the setting of the deformation part 17911, when the tooth top of the clutch drive gear 179 is in contact with the tooth top of the third clutch gear 176, which means that the two will be in a stuck state, the deformation part 17911 moves by itself during squeezing to solve the stuck state at this time, and then the deformation part 17911 continues to rotate a certain angle after moving. After leaving the dead point, the deformation part 17911 rebounds into the tooth groove of the third clutch gear 176, so that the clutch drive gear 179 is meshed with the third clutch gear 176, restoring normal meshing transmission and completing the torque transmission.

[0086] It should be noted that each structure is described in detail below.

[0087] [Box 110]

[0088] refer to Figure 1 The refrigerator 100 of the embodiment of the present application may include a box body 110 and a door body 120. The box body 110 may be configured with a refrigeration compartment. The refrigeration compartment has an opening for storing food and other items. The number of refrigeration compartments may be one or more. When the number of refrigeration compartments is more than one, the multiple refrigeration compartments may be divided into a refrigeration compartment, a freezing compartment, or a temperature-changing compartment, etc.

[0089] Exemplarily, the box body 110 may include a box shell and a box liner, wherein the box shell is used to define the outer boundary of the refrigerator 100. The box liner may be arranged in the box shell and connected to the box shell. The box liner may be recessed inward to form a refrigeration compartment. An insulation layer may be filled between the box shell and the box liner, and the insulation layer can keep the refrigeration compartment warm, thereby reducing the energy consumption of the refrigerator 100.

[0090] [Door body 120]

[0091] It should be noted that the door body 120 can be connected to the box body 110 to open or close the refrigeration compartment. One door body 120 can be provided for the same refrigeration compartment. Alternatively, two door bodies 120 can be provided for the same refrigeration compartment.

[0092] In some possible implementations of the embodiment of the present application, the door body 120 may be a first door body 121, and the first door body 121 may be rotatably connected to the cabinet 110 around the height direction of the cabinet 110. The first door body 121 may be pulled or pushed so that the first door body 121 rotates relative to the cabinet 110 to open or close the refrigeration compartment.

[0093] It should be noted that the height direction of the cabinet 110 refers to the height direction of the cabinet 110 when the refrigerator 100 is in normal use. Figure 1 The vertical direction Z shown in FIG. illustratively, the first door body 121 may be rotatably connected to the box body 110 via a hinge 1211 .

[0094] In some other possible implementations of the present application, Figures 1 to 3 As shown, the door body 120 may be a second door body 122, and the second door body 122 may be slidably connected to the cabinet 110 along the depth direction of the cabinet 110. It is the pulling direction of the second door body 122, and the second door body 122 may be pulled or pushed so that the second door body 122 slides relative to the cabinet 110 to open or close the refrigeration compartment.

[0095] It should be noted that Figure 3 The horizontal direction X shown in refractory 3 represents the drawing direction of the second door 122 and the depth direction of the box body 110 .

[0096] Specifically, the second door body 122 and the anti-collision unit 130 are both arranged to be drawn relative to the box body 110 .

[0097] like Figure 3As shown, in some embodiments, the second door body 122 can be slidably connected to the box body 110 through a guide rail pair 1221. The guide rail pair 1221 includes a fixed guide rail 12211 and a sliding guide rail 12212, and the fixed guide rail 12211 can be fixedly connected to the upper side of the refrigeration compartment. The sliding guide rail 12212 can be slidably connected to the fixed guide rail 12211. The second door body 122 can be connected to an end of the sliding guide rail 12212 away from the rear side wall of the refrigeration compartment. When a pulling force or a pushing force is applied to the second door body 122, the second door body 122 can drive the sliding guide rail 12212 to slide relative to the fixed guide rail 12211, thereby opening or closing the refrigeration compartment.

[0098] For example, there may be two guide rail pairs 1221, and the two guide rail pairs 1221 may be symmetrically arranged along the central plane of the height direction Z in the box body 110. The fixed guide rails 12211 in the two guide rail pairs 1221 are respectively fixedly connected to the two end side walls opposite to the refrigeration compartment, and the ends of the sliding guide rails 12212 in the two guide rail pairs 1221 facing away from the rear side wall of the refrigeration compartment are both fixedly connected to the second door body 122.

[0099] [Automatic switch unit]

[0100] The refrigerator 100 of the embodiment of the present application may further include an automatic switch unit, which can be used to automatically open or close the door body 120, thereby improving the convenience of opening and closing the door body 120 and enhancing the user experience.

[0101] In some possible implementations of the present application, the number of automatic switch units may be the same as the number of door bodies 120. That is, one automatic switch unit may be provided corresponding to each door body 120. Each automatic switch unit may automatically open or close the door body 120 corresponding thereto.

[0102] Continue to refer Figures 4 to 7 The automatic switch unit may include a driving mechanism 140 and an actuator 150. The driving mechanism 140 is used to provide a driving force. The actuator 150 may connect the driving mechanism 140 and the door body 120, and is configured to open or close the door body 120 under the action of the driving force.

[0103] [Drive mechanism 140]

[0104] The driving mechanism 140 is used to provide a driving force for the automatic opening and closing unit to open or close the door body 120 .

[0105] For example, reference Figure 6 and Figure 7The driving mechanism 140 may include a driving motor 141, and the driving motor 141 has a rotatable output shaft, and the output shaft may be connected to the actuator 150 to provide driving force to the actuator 150. It is understandable that the driving motor 141 may be replaced by other components that can provide driving force, such as a pneumatic motor or a hydraulic motor, etc., and this embodiment of the present application will not be described in detail.

[0106] The driving mechanism 140 may further include a first worm 142 and a first worm wheel 143. The first end of the first worm 142 may be connected to the first output shaft of the driving motor 141. The first worm wheel 143 may mesh with the first worm 142 and be transmission-connected to the actuator 150. When the driving mechanism 140 is actuated, the output shaft of the driving motor 141 rotates, the output shaft drives the first worm 142 to rotate, the first worm 142 drives the first worm wheel 143 meshed therewith to rotate, and the first worm wheel 143 drives the actuator 150 to operate to open or close the door body 120. By providing the first worm 142 and the first worm wheel 143, the rotation speed of the driving force provided by the driving motor 141 can be reduced, the torque of the driving force can be increased, and the direction of the driving force can be changed to meet the driving force requirements of the actuator 150.

[0107] [Actuator 150]

[0108] The actuator 150 may include an actuator rack 151. When the clutch mechanism 170 is in an engaged state, the clutch mechanism 170 enables the driving mechanism 140 and the actuator 150 to be connected in transmission. The driving mechanism 140 can transmit the driving force to the actuator 150 through the clutch mechanism 170, so that the actuator rack 151 can drive the door body 120 away from or close to the box body 110, thereby automatically opening or closing the door body 120. When the clutch mechanism 170 is in a disengaged state, the clutch mechanism 170 disconnects the driving mechanism 140 and the actuator 150. The user can manually open or close the door body 120, and the force applied by the user to the door body 120 to open or close the door body 120 will not be transmitted to the driving mechanism 140. In this way, the automatic switch unit can be compatible with the automatic door opening and closing function and the manual door opening and closing function, which increases the function of the automatic switch unit and improves the user experience.

[0109] [Transmission gear train 160]

[0110] The automatic switch unit may further include a transmission gear train 160, which may be mounted on the housing 110. The transmission gear train 160 may include at least one first transmission gear 161, which connects the driving mechanism 140 and the actuator 150. The driving mechanism 140 may transmit the driving force to the actuator 150 through the transmission gear train 160, so that the actuator 150 operates.

[0111] [Clutch mechanism 170]

[0112] In some possible implementations of the embodiments of the present application, the automatic switch unit may further include a clutch mechanism 170, which may be disposed between the drive mechanism 140 and the actuator 150, and is used to connect or disconnect the drive mechanism 140 and the actuator 150. The clutch mechanism 170 may also be configured to arbitrarily control the timing of connecting or disconnecting the drive mechanism 140 and the actuator 150, so as to increase the functionality of the automatic switch unit and improve the user experience.

[0113] It is understandable that by providing the clutch mechanism 170, the automatic switch unit can also achieve other functions, which will not be described in detail in the embodiments of the present application.

[0114] In some embodiments, the clutch mechanism 170 includes a clutch motor 171, a clutch assembly and a clutch drive gear 179. The clutch assembly is used to provide a clutch force and is arranged between the drive mechanism 140 and the actuator 150. The clutch assembly is configured to connect or disconnect the drive mechanism 140 and the actuator 150 under the action of the clutch force.

[0115] The clutch drive gear 179 can drive the clutch assembly to connect or disconnect the drive mechanism 140 with the actuator 150. Therefore, the clutch drive gear 179 can be controlled to control the timing of the clutch assembly being in the engaged state and the disengaged state, which is conducive to increasing the function of the automatic switch unit and improving the user experience.

[0116] For example, reference Figure 6 and Figure 7 The clutch assembly may include a first clutch gear 174, a second clutch gear 175, and a third clutch gear 176 that are coaxially arranged and relatively rotatable. One of the first clutch gear 174 and the second clutch gear 175 may be transmission connected to the driving mechanism 140, and the other may be transmission connected to the second actuator 150.

[0117] For example, the first clutch gear 174 can be transmission-connected to the driving mechanism 140, and the second clutch gear 175 can be transmission-connected to the actuator 150. Alternatively, the first clutch gear 174 can be transmission-connected to the actuator 150, and the second clutch gear 175 can be transmission-connected to the driving mechanism 140.

[0118] The clutch assembly may further include a sliding key 178, which may be slidably connected with the second clutch gear 175 along the radial direction of the second clutch gear 175, and the sliding key 178 has a first protrusion and a second protrusion. The clutch drive gear 179 opens an irregular sliding track. When the second protrusion is in the first position of the sliding track, the first protrusion is disengaged from the inner teeth of the first clutch gear 174, and the clutch mechanism 170 is in a separated state. The clutch drive gear 179 rotates, and the sliding key 178 at this time, under the action of the spring, causes the second protrusion to be in the second position of the sliding track, and the first protrusion is meshed with the inner teeth of the first clutch gear 174, and the clutch mechanism 170 is in a closed state.

[0119] When the output shaft of the clutch motor 171 rotates, the clutch driving gear 179 is driven to rotate, and the clutch driving gear 179 drives the third clutch gear 176 to rotate, so that the first protrusion of the sliding key 178 set on the second clutch gear 175 is disengaged from or engaged with the key slot of the first clutch gear 174, and the clutch mechanism 170 enters a disengaged state or an engaged state.

[0120] When the clutch assembly is in the engaged state, the clutch driving gear 179 can drive the third clutch gear 176 to rotate, and then drive the sliding key 178 to slide relative to the second clutch gear 175, so that the first protrusion of the sliding key 178 is engaged with the internal teeth of the first clutch gear 174, so that the first clutch gear 174 and the second clutch gear 175 are connected through the sliding key 178, so that the first clutch gear 174 and the second clutch gear 175 can rotate synchronously. The driving mechanism 140 can transmit the driving force to the actuator 150 through the synchronously rotating first clutch gear 174 and second clutch gear 175, so that the actuator 150 is activated to automatically open or close the door body 120.

[0121] When the clutch assembly is in the disengaged state, the clutch driving gear 179 can drive the sliding key 178 to slide to the first position relative to the second clutch gear 175, so that the first protrusion of the sliding key 178 is disengaged from the inner teeth of the first clutch gear 174, so that the first clutch gear 174 and the second clutch gear 175 are separated, so that the first clutch gear 174 and the second clutch gear 175 can rotate relative to each other. The driving force provided by the driving mechanism 140 will not be transmitted to the actuator 150, and the reverse load on the actuator 150 will not be transmitted to the driving mechanism 140, and the user can manually open or close the door body 120.

[0122] Exemplarily, the clutch assembly can be disposed between two adjacent first transmission gears 161 with parallel axes in the transmission gear train 160. The first clutch gear 174 can mesh with one of the first transmission gears 161, and the second clutch gear 175 in the clutch assembly can mesh with the other first transmission gear 161.

[0123] It can be understood that the clutch assembly can also be disposed between the transmission gear train 160 and the driving mechanism 140, one of the first clutch gear 174 and the second clutch gear 175 can be meshed with the transmission gear train 160, and the other can be transmission-connected to the driving mechanism 140. The clutch assembly can also be disposed between the transmission gear train 160 and the actuator 150, one of the first clutch gear 174 and the second clutch gear 175 can be meshed with the transmission gear train 160, and the other can be transmission-connected to the actuator 150.

[0124] The clutch motor 171 and the clutch driving gear 179, the clutch driving gear 179 is connected to the output shaft of the clutch motor 171, and at least part of the clutch driving gear 179 has a deformation portion 17911. When the tooth top of the clutch driving gear 179 contacts the tooth top of the third clutch gear 176, the deformation portion 17911 moves along the tooth top direction away from the third clutch gear 176 under the extrusion of the tooth top of the third clutch gear 176, so that the clutch driving gear 179 is meshed with the third clutch gear 176.

[0125] It should be noted that when the clutch mechanism 170 switches its state, the third clutch gear 176 rotates relative to the sliding key 178. Under other working conditions, it is necessary to ensure that the relative position of the third clutch gear 176 and the sliding key 178 remains unchanged. Therefore, when the clutch mechanism 170 rotates, the third clutch gear 176 will also rotate synchronously. Regardless of the state of the door body 120, this embodiment allows automatic opening and closing of the door. Therefore, the first contact point between the clutch drive gear 179 and the third clutch gear 176 is not fixed, that is, the clutch drive gear 179 and the third clutch gear 176 will not always remain in a state of mutual meshing.

[0126] When the clutch motor 171 is working, it drives the clutch drive gear 179 to rotate. If the tooth top of the clutch drive gear 179 is in contact with the tooth top of the third clutch gear 176 at this time, it means that the two will be in a stuck state. Therefore, the setting of the deformation part 17911 can move in the direction away from the tooth top of the third clutch gear 176 under the extrusion of the tooth top of the third clutch gear 176 to solve the stuck state at this time. After the deformation part 17911 is deformed, it continues to rotate a certain angle. After leaving the dead point, the deformation part 17911 rebounds into the tooth groove of the third clutch gear 176 to restore normal meshing transmission.

[0127] like Figures 1 to 9 As shown, in some optional embodiments, the clutch drive gear 179 is an incomplete gear;

[0128] Along the rotation direction of the clutch driving gear 179 , a portion of the clutch driving gear 179 close to the third clutch gear 176 has a deformation portion 17911 .

[0129] It should be noted that, considering the strength of the clutch drive gear 179 , the deformation portion 17911 is provided to solve the problem of sticking. Therefore, the deformation portion 17911 is provided on a portion of the clutch drive gear 179 close to the third clutch gear 176 .

[0130] For example, Figure 8 As shown, the clutch drive gear 179 rotates counterclockwise under the drive of the clutch motor 171. At this time, the deformation part 17911 is arranged on the part of the clutch drive gear 179 that is about to mesh or contact with the third clutch gear 176. That is to say, the deformation part 17911 is not arranged on the entire clutch drive gear 179.

[0131] Generally speaking, to ensure a good user experience, the response time of the actuator 150 should be as short as possible. The response time mainly consists of two parts: one is the signal transmission time, and the other is the time required for the clutch mechanism 170 to switch from separation to closure; limited by the structural layout, the signal transmission time is generally a fixed value, and the state switching time of the clutch mechanism 170 can be shortened by increasing the speed of the clutch motor 171. In the embodiment of the present application, the state switching time of the clutch mechanism 170 is required to be less than 0.1 seconds. During the state switching process, the effective rotation angle of the clutch drive gear 179 is 120°, so the speed of the clutch drive gear 179 is not less than (120 / 360) / 0.1≈3.3Rps.

[0132] In this embodiment, the clutch drive gear 179 has 40 complete teeth. At the above speed, the time required for the second tooth to reach the first tooth is only 1 / 3.3 / 40≈0.0076 seconds.

[0133] If only the first tooth can produce radial displacement, the first tooth produces radial displacement through deformation, and the other teeth will not produce radial displacement. In this embodiment, due to the excessively fast gear rotation speed, the deformation of the first tooth cannot be released in time, and before the first tooth returns to its initial position, the second tooth has reached the position where the first tooth was originally located, and is still in a stuck state. Therefore, in order to avoid this situation, a deformation portion 17911 can be provided on the partial clutch drive gear 179 close to the third clutch gear 176, which means that the deformation portion 17911 is not a structure possessed by a certain tooth in the clutch drive gear 179.

[0134] like Figures 1 to 9 As shown, in some optional embodiments, the deformation portion 17911 is a flexible member, and the deformation portion 17911 is deformed along the direction away from the tooth top of the third clutch gear 176 under the pressure of the tooth top of the third clutch gear 176.

[0135] It should be noted that the deformation portion 17911 is made of a flexible material, and can be deformed under the extrusion of the tooth top of the third clutch gear 176 to solve the problem of sticking.

[0136] In some embodiments, the deformation part 17911 can be a soft plastic part. For example, the deformation part 17911 can be made of materials with elastic deformation ability such as silicone, polypropylene (PP), ethylene-vinyl acetate copolymer (EVA). In practical applications, the other structures of the clutch drive gear 179 are usually made of metal materials to enhance the strength and rigidity of meshing transmission. For example, the other structures can be made of light and rigid metal materials such as aluminum, magnesium and titanium.

[0137] In some other optional embodiments, the deformation portion 17911 is an elastic member, and the elastic member moves along the direction away from the tooth top of the third clutch gear 176 under the pressure of the tooth top of the third clutch gear 176.

[0138] The deformation part 17911 can move along the direction away from the tooth top of the third clutch gear 176 under the extrusion of the tooth top of the third clutch gear 176 to solve the stuck state at this time. After the deformation, the deformation part 17911 continues to rotate a certain angle. After leaving the dead point, the deformation part 17911 rebounds into the tooth groove of the third clutch gear 176 to restore normal meshing transmission.

[0139] Continue to refer Figures 1 to 9 In some optional embodiments, the clutch driving gear 179 has a plurality of first transmission teeth 1791 , and the plurality of first transmission teeth 1791 are spaced apart in the circumference of a portion of the clutch driving gear 179 , and the deformation portion 17911 is located at the tooth top of at least a portion of the first transmission teeth 1791 .

[0140] In some embodiments, the first transmission tooth 1791 may include a tooth top, a tooth center, and a tooth bottom, and the materials of the tooth top, the tooth center, and the tooth bottom may all be flexible parts, which means that the entire first transmission tooth 1791 is a flexible part. Under the extrusion of the tooth top of the third clutch gear 176, the entire first transmission tooth 1791 is deformed to avoid jamming.

[0141] In other embodiments, the tooth top, i.e., the deformation portion 17911 is a flexible part, while the middle and bottom of the tooth are metal parts, which means that under the pressure of the tooth top of the third clutch gear 176, the deformation portion 17911 is deformed to avoid jamming.

[0142] Fig.10 This is a schematic diagram of the assembly of the third clutch gear and another clutch drive gear in the refrigerator in the first state provided by the embodiment of the present application, as shown in FIG. Figures 1 to 10 As shown, in some optional embodiments, the clutch driving gear 179 further includes a second elastic member 1792, and the second elastic member 1792 is connected to the first transmission tooth 1791;

[0143] The third clutch gear 176 has a plurality of second transmission teeth 1761, which are spaced apart in the circumference of the third clutch gear 176. When the tooth top of the first transmission tooth 1791 contacts the tooth top of the second transmission tooth 1761, the second elastic member 1792 is located between the first transmission tooth 1791 and the side wall of the clutch drive gear 179 in a compressed state.

[0144] It should be noted that, in a compressed state, the second elastic member 1792 can provide elastic force for the first transmission tooth 1791 to move, so that the first transmission tooth 1791 can quickly escape from the stuck state with the second transmission tooth 1761 .

[0145] In some embodiments, the first transmission tooth 1791 is a metal part, which means that the deformation part 17911 is also a metal part. When the tooth top of the clutch drive gear 179 and the tooth top of the third clutch gear 176 are in a stuck state, the first transmission tooth 1791 of the metal part can move along the tooth top direction away from the third clutch gear 176 under the action of the second elastic part 1792 to resolve the stuck state at this time.

[0146] In other embodiments, the deformation part 17911 in the first transmission tooth 1791 is a flexible part. With the addition of the second elastic part 1792, the deformation part 17911 and the second elastic part 1792 can both produce a certain deformation under a certain pressure. Therefore, the combination of the two can improve the efficiency of solving the stuck problem. This means that when the tooth top of the clutch driving gear 179 and the tooth top of the third clutch gear 176 are in a stuck state, not only can the deformation of the deformation part 17911 itself be achieved, but also the second elastic part 1792 can move and deform along the direction away from the tooth top of the third clutch gear 176.

[0147] The second elastic member 1792 is detachably connected to the first transmission tooth 1791. It should be noted that by arranging the second elastic member 1792 and the first transmission tooth 1791 to be detachably connected, the installation and removal of the second elastic member 1792 can be achieved, which is convenient for use and maintenance of the second elastic member 1792.

[0148] In some optional embodiments, a moving groove is provided on the clutch driving gear 179 , and the moving groove is extended along the radial direction of the clutch driving gear 179 , and the notch of the moving groove faces the second transmission tooth 1761 ;

[0149] When the tooth top of the first transmission tooth 1791 contacts the tooth top of the second transmission tooth 1761 , the deformation portion 17911 and the second elastic member 1792 move in the moving groove in a direction away from the tooth top of the second transmission tooth 1761 .

[0150] It should be noted that the setting of the movable groove provides installation space for the deformation part 17911 and the second elastic member 1792 on the one hand, and the other part can move in the movable groove in the direction away from the tooth top of the second transmission tooth 1761 under the extrusion of the tooth top of the second transmission tooth 1761, or, when out of the stuck state, the deformation part 17911 can be stuck in the tooth groove of the second transmission tooth 1761 under the elastic force of the second elastic member 1792, so that the clutch drive gear 179 and the third clutch gear 176 are meshed.

[0151] In some embodiments, the second elastic member 1792 can be a compression spring.

[0152] like Fig.10 As shown, in some optional embodiments, the clutch driving gear 179 further includes a rotating member 1793 and a transmission member 1794, the transmission member 1794 is an arc-shaped member and is located on the circumference of the rotating member 1793, and a plurality of first transmission teeth 1791 are arranged on the transmission member 1794 at intervals along the extension direction of the transmission member 1794;

[0153] The clutch driving gear 179 also has a notch 1796 , which is connected to the outer side of the rotating member 1793 . The notch 1796 is located between the transmission member 1794 and the rotating member 1793 , so that part of the transmission member 1794 is suspended on the rotating member 1793 .

[0154] It should be noted that the setting of the notch 1796 enables the first transmission tooth 1791 on the transmission member 1794 to move toward the center of the rotating member 1793 under the pressure of the second transmission tooth 1761 on the third clutch gear 176, and the width of the notch 1796 becomes narrower at this time.

[0155] When the clutch motor 171 is working, it drives the clutch driving gear 179 to rotate. If the tooth top of the clutch driving gear 179 is in contact with the tooth top of the third clutch gear 176, it means that the two are in a stuck state. At this time, the first transmission tooth 1791 moves toward the rotating member 1793 under the pressure of the second transmission tooth 1761, and the width of the notch 1796 becomes narrower. Only by adding the notch 1796, the first transmission tooth 1791 can have a movable space, and the structure is compact.

[0156] In some optional embodiments, the clutch driving gear 179 further includes a connecting member 1795, which is used to connect the transmission member 1794 and the rotating member 1793, and is located in the middle of the transmission member 1794;

[0157] There are at least two notches 1796 , and the at least two notches 1796 are located on opposite sides of the connecting member 1795 in the rotation direction of the rotating member 1793 .

[0158] It should be noted that one end of the connecting member 1795 is connected to the middle of the transmission member 1794, and the other end is connected to the rotating member 1793. When the rotating member 1793 rotates under the drive of the clutch motor 171, it drives the connecting member 1795 and the transmission member 1794 to rotate synchronously.

[0159] Specifically, the notch 1796 is an arc-shaped structure, which matches the structure of the transmission member 1794 and can improve the overall aesthetics.

[0160] Fig.11 A schematic diagram of the structure of the clutch drive gear in the refrigerator provided in the embodiment of the present application, as shown in FIG. Fig.11 As shown, in some optional embodiments, along the radial direction of the rotating member 1793, the thickness of the first transmission tooth 1791 is between 1 mm and 4 mm; and / or,

[0161] Along the radial direction of the rotating member 1793, the thickness of the transmission member 1794 is between 1 mm and 1.5 mm.

[0162] It should be noted that, in order to reduce the risk, if the structure allows, it should be ensured that as many first transmission teeth 1791 as possible have deformation capacity, and the cantilever structure is the simplest and lowest cost solution. In this embodiment, there are four first transmission teeth 1791 that allow elastic deformation.

[0163] In addition, if Fig.11 As shown, H1 represents the thickness of the first transmission tooth 1791 , and H2 represents the thickness of the transmission member 1794 .

[0164] In order to achieve the above design objectives, it is necessary to make the cantilever structure have the greatest possible elasticity while ensuring the structural strength. The material of the clutch drive gear 179 is preferably POM, PA6, or PA66.

[0165] When the thickness H1 of the first transmission tooth 1791 is 3 mm, the thickness H2 of the transmission member 1794 can be between 1 mm and 1.5 mm. If the size is too small, the structural strength will be poor and may break; if the size is too large, it will be difficult to deform, and a clutch motor 171 with a higher power will need to be selected to overcome the elastic force. In the embodiment of the present application, the clutch drive gear 179 is made of POM and has a root width of 1.3 mm.

[0166] The refrigerator provided in the embodiment of the present application includes a box body; a door body, which is slidably connected to the box body; an automatic switch unit, which includes: a driving mechanism, which is configured to provide a driving force; an actuator, which is configured to move away from the box body or move closer to the box body under the action of the driving force; a clutch mechanism, which includes: a first clutch gear, a second clutch gear and a third clutch gear that are coaxially arranged and relatively rotatable, one of the first clutch gear and the second clutch gear is transmission-connected to the driving mechanism, and the other is transmission-connected to the actuator; a sliding key, a sliding key The key has a first protrusion, which is used to engage or disengage with the internal teeth of the first clutch gear to switch the clutch mechanism to an engaged state or a disengaged state; the clutch motor and the clutch drive gear, the clutch drive gear is connected to the output shaft of the clutch motor, and at least part of the clutch drive gear has a deformation portion. When the tooth top of the clutch drive gear contacts the tooth top of the third clutch gear, the deformation portion moves along the tooth top direction away from the third clutch gear under the extrusion of the tooth top of the third clutch gear, so that the clutch drive gear is engaged with the third clutch gear.

[0167] Through the setting of the deformation part, when the tooth tops of the clutch drive gear and the tooth tops of the third clutch gear are in contact, which means that the two will be in a stuck state, the deformation part moves by itself during squeezing to solve the stuck state at this time, and then the deformation part continues to rotate a certain angle after moving, and after leaving the dead point, the deformation part rebounds into the tooth groove of the third clutch gear, so that the clutch drive gear and the third clutch gear are meshed, restoring normal meshing transmission and completing the torque transmission.

[0168] In addition, if Figures 1 to 11 As shown, the embodiment of the present application further provides a refrigerator 100, comprising:

[0169] Box 110;

[0170] The door body 120 is slidably connected to the box body 110;

[0171] Automatic switch unit, comprising:

[0172] a driving mechanism 140 configured to provide a driving force;

[0173] an actuator 150 , which is configured to move away from the housing 110 or move closer to the housing 110 under the action of a driving force;

[0174] The clutch mechanism 170 is arranged between the driving mechanism 140 and the actuator 150. The clutch mechanism 170 includes a clutch driving gear 179 and a clutch gear. At least part of the clutch driving gear 179 has a deformation portion 17911. When the tooth top of the clutch driving gear 179 contacts the tooth top of the clutch gear, the deformation portion 17911 moves under the pressure of the tooth top of the clutch gear to make the clutch driving gear 179 mesh with the clutch gear.

[0175] The refrigerator provided in the embodiment of the present application, through the setting of the deformation part, when the tooth top of the clutch drive gear is in contact with the tooth top of the third clutch gear, which means that the two will be in a stuck state, the deformation part moves by itself when squeezed to solve the stuck state at this time, and then the deformation part continues to rotate a certain angle after moving, and after leaving the dead point, the deformation part rebounds into the tooth groove of the third clutch gear, so that the clutch drive gear is meshed with the third clutch gear, restoring normal meshing transmission and completing the transmission of torque.

[0176] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships 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 referred device or element 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.

[0177] In addition, 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. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0178] 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.

Claims

1. A refrigerator, characterized in that: include: Box; A door body, slidably connected to the box body; Automatic switch unit, comprising: a drive mechanism configured to provide a driving force; an actuator, which is configured to move away from the housing or move closer to the housing under the action of the driving force; A clutch mechanism, comprising: a first clutch gear, a second clutch gear, a third clutch gear and a sliding key, wherein the first clutch gear, the second clutch gear and the third clutch gear are coaxially arranged and can rotate relatively, one of the first clutch gear and the second clutch gear is transmission-connected to the driving mechanism, and the other is transmission-connected to the actuator; the sliding key has a first protrusion, and the first protrusion is used to mesh with or disengage the internal teeth of the first clutch gear to switch the clutch mechanism to an engaged state or a disengaged state; A clutch motor and a clutch drive gear, wherein the clutch drive gear is connected to the output shaft of the clutch motor, and at least part of the clutch drive gear has a deformation portion. When the tooth top of the clutch drive gear contacts the tooth top of the third clutch gear, the deformation portion moves along the tooth top direction away from the third clutch gear under the pressure of the tooth top of the third clutch gear, so that the clutch drive gear is meshed with the third clutch gear.

2. The refrigerator according to claim 1, characterized in that: The clutch drive gear is an incomplete gear; Along the rotation direction of the clutch driving gear, a portion of the clutch driving gear close to the third clutch gear has the deformation portion.

3. The refrigerator according to claim 1, characterized in that: The deformable part is a flexible part, and under the extrusion of the tooth top of the third clutch gear, the deformable part is deformed along the tooth top direction away from the third clutch gear; Alternatively, the deformation portion is an elastic member, and the elastic member moves along a direction away from the tooth top of the third clutch gear under the pressure of the tooth top of the third clutch gear.

4. The refrigerator according to any one of claims 1 to 3, characterized in that: The clutch driving gear has a plurality of first transmission teeth, and the plurality of first transmission teeth are arranged at intervals in the circumference of a portion of the clutch driving gear, and the deformation portion is located at the tooth tops of at least a portion of the first transmission teeth.

5. The refrigerator according to claim 4, characterized in that: The clutch drive gear further includes a second elastic member, and the second elastic member is connected to the first transmission tooth; The third clutch gear has a plurality of second transmission teeth, and the plurality of second transmission teeth are spaced apart in the circumference of the third clutch gear. When the tooth tops of the first transmission teeth contact the tooth tops of the second transmission teeth, the second elastic member is located between the first transmission teeth and the side wall of the clutch drive gear in a compressed state.

6. The refrigerator according to claim 5, characterized in that: The clutch driving gear is provided with a moving groove, the moving groove is extended along the radial direction of the clutch driving gear, and the notch of the moving groove faces the second transmission tooth; When the tooth top of the first transmission tooth contacts the tooth top of the second transmission tooth, the deformation portion and the second elastic member move in the moving groove in a direction away from the tooth top of the second transmission tooth.

7. The refrigerator according to claim 4, characterized in that: The clutch drive gear further includes a rotating member and a transmission member, wherein the transmission member is an arc-shaped member and is located on the circumference of the rotating member, and a plurality of the first transmission teeth are arranged on the transmission member at intervals along the extension direction of the transmission member; The clutch drive gear is further provided with a notch, the notch is communicated with the outer side of the rotating member, and the notch is located between the transmission member and the rotating member so that part of the transmission member is suspended on the rotating member.

8. The refrigerator according to claim 7, characterized in that: The clutch drive gear further includes a connecting member, which is used to connect the transmission member and the rotating member and is located in the middle of the transmission member; There are at least two notches, and at least two of the notches are located on opposite sides of the connecting member in the rotation direction of the rotating member.

9. The refrigerator according to claim 8, characterized in that: Along the radial direction of the rotating member, the thickness of the first transmission tooth is between 2 mm and 4 mm; and / or, Along the radial direction of the rotating member, the thickness of the transmission member is between 1 mm and 1.5 mm.

10. A refrigerator, characterized in that: include: Box; A door body, slidably connected to the box body; Automatic switch unit, comprising: a drive mechanism configured to provide a driving force; an actuator, which is configured to move away from the housing or move closer to the housing under the action of the driving force; A clutch mechanism, wherein the clutch mechanism is arranged between the driving mechanism and the actuator, and the clutch mechanism includes a clutch driving gear and a clutch gear, at least part of the clutch driving gear has a deformation portion, and when the tooth top of the clutch driving gear contacts the tooth top of the clutch gear, the deformation portion moves under the pressure of the tooth top of the clutch gear to make the clutch driving gear mesh with the clutch gear.

Images