Refrigeration equipment

Abstract

The invention provides refrigeration equipment. The automatic door opening and closing device comprises a door body and an automatic door opening and closing module, the automatic door opening and closing module comprises a driving mechanism, a driven mechanism, a clutch mechanism, a detection mechanism and a control module, the detection mechanism is used for detecting the state of the clutch mechanism and outputting a state signal, and state positions of the clutch mechanism comprise a door opening connecting position, a door closing connecting position and at least one disengaging position. The control module is used for controlling the driving mechanism to operate in the target movement direction of the door opening / closing signal or the reverse direction of the target movement direction when the door opening / closing signal is obtained. Through the arrangement, automatic door opening and closing can be achieved, the state position of the clutch mechanism of the automatic door opening and closing module can be automatically corrected, and accurate operation of the automatic door opening and closing module is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of household appliances, and in particular to a refrigeration device. Background Art

[0002] With the continuous improvement of living standards, refrigerators have become a must-have household appliance and have entered thousands of households, and the functions of refrigerators are becoming more and more complete. The existing refrigerator door is generally set to manually open and close the door. When the user needs to use the storage compartment, the storage door needs to be opened manually, and then closed manually after use. However, this design has the following defects: when the user has a lot of items in his hands or the user is an elderly or child, it is inconvenient to manually open and close the door. Summary of the invention

[0003] The object of the present invention is to provide a refrigeration equipment, which can realize automatic door opening and closing by setting an automatic door opening and closing module and controlling the operation of a driving mechanism according to a state signal of the clutch mechanism to adjust the state position of the clutch mechanism, and can automatically correct the state position of the clutch mechanism of the automatic door opening and closing module to ensure the accurate operation of the automatic door opening and closing module.

[0004] To achieve the above-mentioned purpose of the invention, an embodiment of the present invention provides a refrigeration device, comprising a box body, a storage room arranged in the box body, and a door body for opening and closing the storage room, wherein the refrigeration device also includes an automatic door opening and closing module, and the automatic door opening and closing module includes:

[0005] Driving mechanism;

[0006] A driven mechanism, which is transmission-connected to the door body;

[0007] A clutch mechanism, which is used to connect or disconnect the power transmission between the driving mechanism and the driven mechanism, the state position of the clutch mechanism includes a door-opening connection position, a door-closing connection position, and at least one disengaged position, the operation of the driving mechanism drives the state position of the clutch mechanism to switch, when the door is in the door-opening connection position, the clutch mechanism is in a connected state, the driving mechanism runs in the door-opening direction to drive the door body to open, when the door is in the door-closing connection position, the clutch mechanism is in a connected state, the driving mechanism runs in the door-closing direction to drive the door body to close, and when the at least one disengaged position, the clutch mechanism is in a disengaged state;

[0008] A detection mechanism, which is used to detect the state of the clutch mechanism and output a state signal, when the clutch mechanism is in a connected state, the state signal is a first signal, when the clutch mechanism is in a disengaged state, the state signal is a second signal;

[0009] A control module for:

[0010] When the door opening / closing signal is obtained, the driving mechanism is controlled to run in the opposite direction of the target movement direction of the door opening / closing signal, and the driving mechanism is controlled to run in the target movement direction of the door opening / closing signal according to the change of the status signal, the target movement direction of the door opening signal is the door opening direction, and the target movement direction of the door closing signal is the door closing direction.

[0011] As a further improvement of an embodiment of the present invention, the control module is used for:

[0012] When the state signal is switched from the second signal to the first signal or from the first signal to the second signal, the driving mechanism is controlled to move in the target movement direction of the door opening / closing signal.

[0013] As a further improvement of an embodiment of the present invention, the control module is further used to calculate the running time of the driving mechanism in the opposite direction of the target movement direction of the door opening / closing signal.

[0014] “Controlling the driving mechanism to move in the target movement direction of the door opening / closing signal according to the change of the state signal” specifically includes:

[0015] If the driving mechanism runs in the opposite direction to the target movement direction of the door opening / closing signal for a preset time period, and the status signal is always the first signal or the second signal, then when the driving mechanism runs in the opposite direction to the target movement direction of the door opening / closing signal for the preset time period, the driving mechanism is controlled to run in the target movement direction of the door opening / closing signal.

[0016] To achieve the above-mentioned purpose of the invention, an embodiment of the present invention provides a refrigeration device, comprising a box body, a storage room arranged in the box body, and a door body for opening and closing the storage room, wherein the refrigeration device also includes an automatic door opening and closing module, and the automatic door opening and closing module includes:

[0017] Driving mechanism;

[0018] A driven mechanism, which is transmission-connected to the door body;

[0019] A clutch mechanism is used to connect or disconnect the power transmission between the driving mechanism and the driven mechanism. The state positions of the clutch mechanism include an open-door connection position, a close-door connection position, and at least one disengaged position. The operation of the driving mechanism drives the switching of the state positions of the clutch mechanism. When in the open-door connection position, the clutch mechanism is in a connected state, and the driving mechanism operates in the open-door direction to drive the door body to open. When in the close-door connection position, the clutch mechanism is in a connected state, and the driving mechanism operates in the close-door direction to drive the door body to close. When in the at least one disengaged position, the clutch mechanism is in a disengaged state;

[0020] A detection mechanism is used to detect the state of the clutch mechanism and output a state signal. When the clutch mechanism is in a connected state, the state signal is a first signal. When the clutch mechanism is in a disengaged state, the state signal is a second signal;

[0021] A control module is used for:

[0022] When obtaining the open / close door signal, control the driving mechanism to operate in the target movement direction of the open / close door signal and start timing. The target movement direction of the open door signal is the open-door direction, and the target movement direction of the close door signal is the close-door direction;

[0023] When the driving mechanism operates in the target movement direction of the open / close door signal for a preset duration, if the state signal is the second signal, then control the driving mechanism to operate in the reverse direction of the target movement direction of the open / close door signal;

[0024] When the state signal switches from the second signal to a preset state signal, control the driving mechanism to operate in the target movement direction of the open / close door signal.

[0025] As a further improvement of an embodiment of the present invention, wherein the control module is used for:

[0026] When the state signal switches from the second signal to the first signal, control the driving mechanism to operate in the target movement direction of the open / close door signal.

[0027] As a further improvement of an embodiment of the present invention, wherein the control module is used for:

[0028] When the state signal switches from the second signal to the first signal and then switches from the first signal to the second signal, control the driving mechanism to operate in the target movement direction of the open / close door signal.

[0029] As a further improvement of an embodiment of the present invention, wherein the control module is used for:

[0030] When the state signal is switched from the second signal to the first signal, then from the first signal to the second signal, and then from the second signal to the first signal, control the driving mechanism to operate in the target movement direction of the door opening / closing signal.

[0031] As a further improvement of an embodiment of the present invention, wherein the at least one disengaged position includes a disengaged position between the door opening and closing. When the clutch mechanism is in the disengaged position between the door opening and closing, if the driving mechanism operates in the closing direction, the clutch mechanism enters the closing connection position from the disengaged position between the door opening and closing. If the driving mechanism operates in the opening direction, the clutch mechanism enters the opening connection position from the disengaged position between the door opening and closing. When the clutch mechanism is in the opening connection position, if the driving mechanism operates in the closing direction, the clutch mechanism enters the disengaged position between the door opening and closing from the opening connection position. When the clutch mechanism is in the closing connection position, if the driving mechanism operates in the opening direction, the clutch mechanism enters the disengaged position between the door opening and closing from the closing connection position.

[0032] As a further improvement of an embodiment of the present invention, wherein the at least one disengaged position further includes an opening disengaged position and a closing disengaged position.

[0033] When the clutch mechanism is in the opening disengaged position, if the driving mechanism operates in the opening direction, the clutch mechanism remains in the opening disengaged position. If the driving mechanism is controlled to operate in the closing direction, the clutch mechanism sequentially enters the opening connection position, the disengaged position between the door opening and closing, and the closing connection position from the opening disengaged position.

[0034] When the clutch mechanism is in the closing disengaged position, if the driving mechanism is controlled to operate in the closing direction, the clutch mechanism remains in the closing disengaged position. If the driving mechanism is controlled to operate in the opening direction, the clutch mechanism sequentially enters the closing connection position, the disengaged position between the door opening and closing, and the opening connection position from the closing disengaged position.

[0035] As a further improvement of an embodiment of the present invention, wherein the driving structure includes a driving motor and a driving wheel drivingly connected to the driving motor. The driven mechanism includes a driven wheel drivingly connected to the door body. The clutch mechanism includes a clutch wheel. The driving wheel, the driven wheel, and the clutch wheel are centered on the same rotation axis. The driving wheel is disposed between the driven wheel and the clutch wheel. The clutch wheel can move away from or close to the driving wheel in the extending direction of the rotation axis.

[0036] A clutch pin is provided on the side of the driving wheel of the clutch wheel. The driving wheel is provided with a driving wheel arc-shaped hole with the rotation axis as the center of curvature. The clutch pin is placed in the driving wheel arc-shaped hole and can slide in the driving wheel arc-shaped hole.

[0037] The driven wheel is provided with a driven wheel arc-shaped hole with the rotation axis as the center of curvature. When the clutch wheel moves towards the driving wheel side, the clutch pin extends into the driven wheel arc-shaped hole through the driving wheel arc-shaped hole and can slide in the driven wheel arc-shaped hole, and the clutch mechanism is in the connected state.

[0038] When the clutch wheel moves away from the driving wheel side, the clutch pin leaves the driven wheel arc-shaped hole and retracts into the driving wheel arc-shaped hole, and the clutch mechanism is in the disengaged state.

[0039] When both the end of the driving wheel arc-shaped hole and the end of the driven wheel arc-shaped hole abut against the clutch pin, the driven wheel rotates with the driving wheel.

[0040] As a further improvement of an embodiment of the present invention, wherein, the clutch mechanism further includes a holding wheel and an elastic member. The holding wheel is centered on the rotation axis. The clutch wheel is arranged between the driving wheel and the holding wheel, and the elastic member is arranged between the driving wheel and the clutch wheel.

[0041] A holding pin is provided on the side of the holding wheel of the clutch wheel. On the side of the clutch wheel facing the holding wheel, a convex portion and a concave portion are formed in sequence centered on the rotation axis.

[0042] When the clutch wheel and the holding wheel rotate relative to each other until the convex portion and the holding pin are opposite to each other, the clutch wheel moves towards the driving wheel side under the action of the holding pin, and the clutch pin extends into the driven wheel arc-shaped hole, and the clutch mechanism is in the connected state.

[0043] When the clutch wheel and the holding wheel rotate relative to each other until the concave portion and the holding pin are opposite to each other, the clutch wheel moves towards the holding wheel side under the action of the elastic member, and the clutch pin leaves the driven wheel arc-shaped hole, and the clutch mechanism is in the disengaged state.

[0044] As a further improvement of an embodiment of the present invention, wherein, the convex portion includes a first convex portion and a second convex portion, the concave portion includes a first concave portion and a second concave portion, the first convex portion, the first concave portion, the second convex portion, and the second concave portion are arranged in sequence centered on the rotation axis, and a clamping structure is provided between the holding wheel and the driving wheel.

[0045] When the driving wheel rotates in the door-opening direction until the arc-shaped hole of the driving wheel abuts against the clutch pin, the clutch wheel rotates in the door-opening direction along with the driving wheel. When the clutch wheel rotates relative to the abutting wheel until the first convex part and the abutting pin are opposite to each other, the clutch mechanism enters the door-opening connection position;

[0046] When the clutch mechanism is in the door-opening connection position, if the driving wheel rotates in the door-closing direction, when the clutch wheel rotates along with the driving wheel until the first concave part and the abutting pin are opposite to each other, the clutch mechanism enters the disengaged position between door-opening and door-closing;

[0047] When the clutch mechanism is in the disengaged position between door-opening and door-closing, if the driving wheel rotates in the door-closing direction, when the clutch wheel rotates along with the driving wheel until the second convex part and the abutting pin are opposite to each other, the clutch mechanism enters the door-closing connection position;

[0048] When the clutch mechanism is in the door-opening connection position, if the door body drives the driven wheel to rotate in the door-opening direction under an external force, when the end of the arc-shaped hole of the driven wheel abuts against the clutch pin, the clutch wheel rotates in the door-opening direction along with the driven wheel. When the clutch wheel rotates along with the driven wheel until the second concave part and the abutting pin are opposite to each other, the clutch mechanism enters the door-opening disengaged position;

[0049] When the clutch mechanism is in the door-opening disengaged position, if the driving wheel rotates in the door-opening direction, the driving wheel and the abutting wheel are engaged through the clamping structure, the abutting wheel rotates along with the driving wheel. When the abutting wheel rotates until the abutting pin abuts against the end of the second concave part, the abutting wheel drives the clutch wheel to rotate, and the clutch mechanism remains in the door-opening disengaged position;

[0050] When the clutch mechanism is in the door-opening disengaged position, if the driving wheel rotates in the door-closing direction, when the clutch wheel rotates along with the driving wheel until the first convex part and the abutting pin are opposite to each other, the clutch mechanism enters the door-opening connection position;

[0051] When the clutch mechanism is in the door-closing connection position, if the door body drives the driven wheel to rotate in the door-closing direction under an external force, when the end of the arc-shaped hole of the driven wheel abuts against the clutch pin, the clutch wheel rotates along with the driven wheel. When the clutch wheel rotates until the second concave part and the abutting pin are opposite to each other, the clutch mechanism enters the door-closing disengaged position;

[0052] When the clutch mechanism is in the door - closing disengaged position, if the driving wheel rotates in the door - closing direction, the driving wheel and the abutting wheel are engaged through the clamping structure, and the abutting wheel rotates with the driving wheel. When the abutting wheel rotates to the position where the abutting pin abuts against the end of the second recess, the abutting wheel drives the clutch wheel to rotate in the door - closing direction, and the clutch wheel remains in the door - closing disengaged position.

[0053] When the clutch mechanism is in the door - closing disengaged position, if the driving wheel rotates in the door - opening direction, when the clutch wheel rotates with the driving wheel to a position where the second protrusion and the abutting pin are opposite to each other, the clutch mechanism enters the door - closing connected position.

[0054] Compared with the prior art, the present invention sets an automatic door - opening and closing module and controls the operation of the driving mechanism according to the state signal of the clutch mechanism to adjust the state position of the clutch mechanism. The beneficial effects are as follows: It can achieve automatic door - opening and closing, and can automatically correct the state position of the clutch mechanism of the automatic door - opening and closing module, ensuring the accurate operation of the automatic door - opening and closing module. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] The following further describes in detail the specific embodiments of the present invention with reference to the drawings, where:

[0056] Figure 1 is a schematic structural view of a refrigerator according to an embodiment of the present invention;

[0057] Figure 2 is a schematic structural view of an automatic door - opening and closing module according to an embodiment of the present invention;

[0058] Figure 3 is Figure 2 an exploded view of the automatic door - opening and closing module shown;

[0059] Figure 4 is Figure 2 a diagram showing the change of the state position and state signal of the clutch mechanism when the driving mechanism shown runs in the door - opening direction or the door - closing direction;

[0060] Figure 5 is Figure 2 a schematic structural view of the clutch - wheel side of the driving wheel shown;

[0061] Figure 6 is Figure 2 a schematic structural view of the driven - wheel side of the driving wheel shown;

[0062] Figure 7 is Figure 2 a schematic structural view of the driven wheel shown;

[0063] Figure 8 is Figure 2 a schematic structural view of the abutting - wheel side of the clutch wheel shown;

[0064] Figure 9 is Figure 2 Schematic diagram of the structure on the driving wheel side of the clutch wheel shown

[0065] Figure 10 is Figure 2 Schematic diagram of the structure on the clutch wheel side of the abutting wheel shown

[0066] Figure 11 is Figure 2 Schematic diagram of the cooperation on the abutting wheel side when the clutch mechanism is in the open - door connection position shown

[0067] Figure 12 is Figure 2 Schematic diagram of the cooperation on the driven wheel side when the clutch mechanism is in the open - door connection position shown

[0068] Figure 13 is Figure 2 Schematic diagram of the driven wheel being driven by an external force to rotate in the open - door direction when the clutch mechanism is in the open - door connection position shown

[0069] Figure 14 is Figure 2 Schematic diagram of the cooperation on the abutting wheel side when the clutch mechanism is in the open - door disengaged position shown

[0070] Figure 15 is Figure 2 Schematic diagram of the cooperation on the driven wheel side when the clutch mechanism is in the open - door disengaged position shown

[0071] Figure 16 is Figure 2 Schematic diagram of the structure of the driving wheel and the abutting wheel engaged in the open - door direction shown

[0072] Figure 17 is Figure 2 Schematic diagram of the cooperation on the abutting wheel side when the clutch mechanism is in the closed - door connection position shown

[0073] Figure 18 is Figure 2 Schematic diagram of the cooperation on the driven wheel side when the clutch mechanism is in the closed - door connection position shown

[0074] Figure 19 is Figure 2 Schematic diagram of the driven wheel being driven by an external force to rotate in the closed - door direction when the clutch mechanism is in the closed - door connection position shown

[0075] Figure 20 is Figure 2 Schematic diagram of the cooperation on the abutting wheel side when the clutch mechanism is in the closed - door disengaged position shown

[0076] Figure 21 is Figure 2Schematic diagram of the cooperation on the driven wheel side when the clutch mechanism shown is in the door - closing disengaged position;

[0077] Figure 22 is Figure 2 Schematic diagram of the structure where the driving wheel and the abutting wheel shown are engaged in the door - closing direction. Specific embodiments

[0078] The present invention will be described in detail below in conjunction with the specific embodiments shown in the drawings. However, these embodiments do not limit the present invention, and any structural, method, or functional transformation made by those of ordinary skill in the art based on these embodiments is included within the protection scope of the present invention.

[0079] The refrigeration device of the present invention can be a refrigerator, a freezer, a commercial display cabinet, etc. Hereinafter, the specific embodiments of the present invention will be described by taking a refrigerator as an example.

[0080] The first embodiment

[0081] Referring to Figure 1 , in the first embodiment of the present invention, the refrigerator 100 includes a box body 10, a storage compartment 11 arranged inside the box body 10, and a door body 12 for opening and closing the storage compartment 11. The storage compartment 11 can be a refrigerating compartment, a freezing compartment, a variable - temperature compartment, etc.

[0082] Referring to Figure 2 and Figure 3 , in this embodiment, the refrigerator 100 further includes an automatic door - opening and closing module 200.

[0083] In this embodiment, the automatic door - opening and closing module 200 includes a driving mechanism 20 and a driven mechanism 30. The driven mechanism 30 is in transmission connection with the door body 12.

[0084] In this embodiment, the automatic door - opening and closing module 200 includes a clutch mechanism 40. The clutch mechanism 40 is used to connect or disconnect the power transmission between the driving mechanism 20 and the driven mechanism 30.

[0085] Referring to Figure 4 , in this embodiment, the state positions of the clutch mechanism 40 include an open - door connection position 1, a close - door connection position - 1, and at least one disengaged position. The at least one disengaged position includes a disengaged position 0 between opening and closing the door. The driving mechanism operates to drive the state position of the clutch mechanism to switch.

[0086] When the clutch mechanism 40 is in the open - door connection position 1, if the driving mechanism 20 operates in the open - door direction, the driven mechanism 30 operates with the driving mechanism 20 and drives the door body 12 to open. If the driving mechanism 20 operates in the close - door direction, the clutch mechanism 40 sequentially enters the disengaged position 0 between opening and closing the door and the close - door connection position - 1 from the open - door connection position 1.

[0087] When the clutch mechanism 40 is in the door - closing connection position - 1, if the clutch mechanism 40 moves in the door - closing direction, the driven mechanism 30 moves with the driving mechanism 20 and drives the door body 12 to close. If the driving mechanism 20 moves in the door - opening direction, the clutch mechanism 40 sequentially enters the off - position 0 between opening and closing and the door - opening connection position 1 from the door - closing connection position - 1.

[0088] Referring to Figure 4 , in this embodiment, the at least one off - position further includes a door - opening off - position 2. When the clutch mechanism 40 is in the door - opening off - position 2, if the driving mechanism 20 moves in the door - opening direction, the clutch mechanism 40 remains in the door - opening off - position 2. If the driving mechanism 20 is controlled to move in the door - closing direction, the clutch mechanism 40 sequentially enters the door - opening connection position 1, the off - position 0 between opening and closing, and the door - closing connection position - 1 from the door - opening off - position 2.

[0089] Referring to Figure 4 , in this embodiment, the at least one off - position further includes a door - closing off - position - 2. When the clutch mechanism 40 is in the door - closing off - position - 2, if the driving mechanism 20 is controlled to move in the door - closing direction, the clutch mechanism 40 remains in the door - closing off - position - 2. If the driving mechanism 20 is controlled to move in the door - opening direction, the clutch mechanism 40 sequentially enters the door - closing connection position - 1, the off - position 0 between opening and closing, and the door - opening connection position 1 from the door - closing off - position - 2.

[0090] In this embodiment, the automatic door opening and closing module 200 further includes a detection mechanism. The detection mechanism is used to detect the state of the clutch mechanism 40 and output a state signal.

[0091] When the state position of the clutch mechanism 40 is the door - opening connection position 1 or the door - closing connection position - 1, the clutch mechanism 40 is in a connected state, and the driving mechanism 20 and the driven mechanism 30 are in transmission connection, and the state signal is the first signal A.

[0092] When the state position of the clutch mechanism 40 is the door - opening off - position 2, or the door - closing off - position - 2, or the off - position 0 between opening and closing, the clutch mechanism 40 is in a disengaged state, and the driving mechanism 20 and the driven mechanism 30 are disconnected, and the state signal is the second signal B.

[0093] Referring to Figure 2 、 Figure 3 、 Figures 5 to 9 , further, in this embodiment, the driving structure may include a driving motor 22 and a driving wheel 21 in transmission connection with the driving motor 22. The driven mechanism 30 may include a driven wheel 31 in transmission connection with the door body 12. The clutch mechanism 40 may include a clutch wheel 42.

[0094] In the present embodiment, the driving wheel 21, the driven wheel 31, and the clutch wheel 42 can be centered on the same rotation axis 50. The driving wheel 21 can be disposed between the driven wheel 31 and the clutch wheel 42. The clutch wheel 42 can be configured to be movable away from or close to the driving wheel 21 in the extending direction of the rotation axis 50.

[0095] In the present embodiment, a clutch pin 423 can be provided on the side of the clutch wheel 42 facing the driving wheel 21. The driving wheel 21 can be provided with a driving wheel arcuate hole 211 having the rotation axis 50 as the center of curvature. The clutch pin 423 can be placed in the driving wheel arcuate hole 211 and can slide within the driving wheel arcuate hole 211.

[0096] In the present embodiment, the driven wheel 31 can be provided with a driven wheel arcuate hole 311 having the rotation axis 50 as the center of curvature.

[0097] When the clutch wheel 42 moves toward the driving wheel 21, the clutch pin 423 can extend into the driven wheel arcuate hole 311 through the driving wheel arcuate hole 211 and can slide within the driven wheel arcuate hole 311, and the clutch mechanism 40 is in the connected state.

[0098] When the clutch wheel 42 moves away from the driving wheel 21, the clutch pin 423 leaves the driven wheel arcuate hole 311 and retracts into the driving wheel arcuate hole 211, and the clutch mechanism 40 is in the disengaged state.

[0099] When both the end of the driving wheel arcuate hole 211 and the end of the driven wheel arcuate hole 311 abut against the clutch pin 423, the driven wheel 31 rotates with the driving wheel 21.

[0100] In the present embodiment, the detection mechanism can include a sensor. The sensor can be arranged in cooperation with the clutch pin 423. The sensor can output different state signals by detecting whether the clutch extends into the driven wheel arcuate hole 311. When the clutch pin 423 extends from the driving wheel arcuate hole 211 into the driven wheel arcuate hole 311, the photoelectric sensor can output a first signal A, and the clutch mechanism 40 is in the connected state. When the clutch pin 423 retracts from the driven wheel arcuate hole 311 into the driving wheel arcuate hole 211, the sensor can output a second signal B, and the clutch mechanism 40 is in the disengaged state. The sensor can be a photoelectric sensor or the like.

[0101] Refer to Figure 2 、 Figure 3 、 Figures 8 to 10 Furthermore, in the present embodiment, the clutch mechanism 40 further includes a holding wheel 41 and an elastic member 43. The holding wheel 41 can be centered on the rotation axis 50. The clutch wheel 42 can be disposed between the driving wheel 21 and the holding wheel 41. The elastic member 43 can be disposed between the driving wheel 21 and the clutch wheel 42.

[0102] In this embodiment, a holding pin 411 may be provided on the side of the clutch wheel 42 of the holding wheel 41. On the side of the holding wheel 41 of the clutch wheel 42, a convex portion 421 and a concave portion 422 arranged in sequence around the rotation axis 50 may be formed.

[0103] When the clutch wheel 42 and the holding wheel 41 rotate relative to each other until the convex portion 421 and the holding pin 411 face each other, the clutch wheel 42 may move toward the driving wheel 21 under the action of the holding pin 411, and the clutch pin 423 extends into the arc-shaped hole 311 of the driven wheel, and the clutch mechanism 40 is in the connected state.

[0104] When the clutch wheel 42 and the holding wheel 41 rotate relative to each other until the concave portion 422 and the holding pin 411 face each other, the clutch wheel 42 may move toward the holding wheel 41 under the action of the elastic member 43, the clutch pin 423 leaves the arc-shaped hole 311 of the driven wheel, and the clutch mechanism 40 is in the disengaged state.

[0105] Refer to Figure 8 , further, in this embodiment, the convex portion 421 includes a first convex portion 4211 and a second convex portion 4212, the concave portion 422 includes a first concave portion 4221 and a second concave portion 4222, and the first convex portion 4211, the first concave portion 4221, the second convex portion 4212, and the second concave portion 4222 are arranged in sequence around the rotation axis 50.

[0106] Refer to Figure 3 , Figure 5 and Figure 10 , a clamping structure is provided between the holding wheel 41 and the driving wheel 21. The clamping structure may include a clamping protrusion 212 provided on the driving wheel 21 and a clamping wall 412 provided on the holding wheel. The clamping protrusion 212 and the clamping wall 412 are cooperatively arranged.

[0107] Refer to Figure 11 and Figure 12 , when the driving wheel 21 rotates in the door-opening direction until the end of the arc-shaped hole 211 of the driving wheel abuts against the clutch pin 423, the clutch wheel 42 rotates in the door-opening direction with the driving wheel 21. When the clutch wheel 42 rotates relative to the holding wheel 41 until the first convex portion 4211 and the holding pin 411 face each other, the clutch wheel 42 moves toward the driving wheel 21 under the action of the holding pin 411, and the clutch pin 423 extends from the arc-shaped hole 211 of the driving wheel into the arc-shaped hole 311 of the driven wheel, and the clutch mechanism 40 enters the door-opening connection position 1. When the ends of both the arc-shaped hole 211 of the driving wheel and the arc-shaped hole 311 of the driven wheel abut against the clutch pin 423, the driven wheel 31 rotates in the door-opening direction with the driving wheel 21.

[0108] Refer to Figure 11 and Figure 12, when the clutch mechanism 40 is in the door-opening connection position 1, if the driving wheel 21 rotates in the door-closing direction, when the clutch wheel 42 rotates with the driving wheel 21 to a position where the first recess 4221 and the abutting pin 411 are opposite to each other, the clutch wheel 42 moves towards the abutting wheel 41 under the action of the elastic member 43, the clutch pin 423 leaves the driven wheel arc-shaped hole 311 and retracts into the driving wheel arc-shaped hole 211, and the clutch mechanism 40 enters the door-opening / closing disengagement position 0.

[0109] Refer to Figures 13 to 15 , when the clutch mechanism 40 is in the door-opening connection position 1, if the door body 12 drives the driven wheel 31 to rotate in the door-opening direction under an external force, when the end of the driven wheel arc-shaped hole 311 abuts against the clutch pin 423, the clutch wheel 42 rotates with the driven wheel 31 in the door-opening direction. When the clutch wheel 42 rotates with the driven wheel 31 to a position where the second recess 4222 and the abutting pin 411 are opposite to each other, the clutch wheel 42 moves towards the abutting wheel 41 under the action of the elastic member 43, the clutch pin 423 leaves the driven wheel arc-shaped hole 311 and retracts into the driving wheel arc-shaped hole 211, and the clutch mechanism 40 enters the door-opening disengagement position 2.

[0110] Refer to Figures 14 to 16 , when the clutch mechanism 40 is in the door-opening disengagement position 2, if the driving wheel 21 rotates in the door-opening direction, the driving wheel 21 and the abutting wheel 41 are engaged through the said clamping structure, that is, the clamping protrusion 212 of the driving wheel 21 and the clamping wall 412 of the abutting wheel 41 are clamped with each other in the door-opening direction, and the abutting wheel 41 rotates with the driving wheel 21. When the abutting wheel 41 rotates to a position where the abutting pin 411 abuts against the end of the second recess 4222, the abutting wheel 41 drives the clutch wheel 42 to rotate, and the abutting wheel 41 and the clutch wheel 42 rotate synchronously with the driving wheel 21 in the door-opening direction, and the clutch mechanism 40 remains in the door-opening disengagement position 2.

[0111] Refer to Figures 14 to 16 , when the clutch mechanism 40 is in the door-opening disengagement position 2, if the driving wheel 21 rotates in the door-closing direction, the clamping protrusion 212 of the driving wheel 21 and the clamping wall 412 of the abutting wheel 41 are disengaged from the engagement, the abutting wheel 41 does not rotate with the driving wheel 21 in the door-closing direction. When the end of the driving wheel arc-shaped hole 211 abuts against the clutch pin 423, the clutch wheel 42 rotates with the driving wheel 21 in the door-closing direction. When the clutch wheel 42 rotates with the driving wheel 21 to a position where the first protrusion 4211 and the abutting pin 411 are opposite to each other, the clutch wheel 42 moves towards the driving wheel 21 under the action of the abutting pin 411, and the clutch pin 423 extends from the driving wheel arc-shaped hole 211 into the driven wheel arc-shaped hole 311, and the clutch mechanism 40 enters the door-opening connection position 1.

[0112] Refer to Figure 17 and Figure 18, when the clutch mechanism 40 is in the off position 0 between door opening and closing, if the driving wheel 21 rotates in the door closing direction, when the clutch wheel 42 rotates with the driving wheel 21 to a position where the second convex portion 4212 and the abutting pin 411 are opposite to each other, the clutch wheel 42 moves toward the driving wheel 21 side under the action of the abutting pin 411, and the clutch pin 423 extends from the arc-shaped hole 211 of the driving wheel into the arc-shaped hole 311 of the driven wheel, and the clutch mechanism 40 enters the door closing connection position -1. When the ends of the arc-shaped hole 211 of the driving wheel and the arc-shaped hole 311 of the driven wheel both abut against the clutch pin 423, the driven wheel 31 rotates in the door closing direction with the driving wheel 21.

[0113] Refer to Figures 19 to 21 , when the clutch mechanism 40 is in the door closing connection position -1, if the door body 12 drives the driven wheel 31 to rotate in the door closing direction under an external force, when the end of the arc-shaped hole 311 of the driven wheel abuts against the clutch pin 423, the clutch wheel 42 rotates with the driven wheel 31. When the clutch wheel 42 rotates to a position where the second concave portion 4222 and the abutting pin 411 are opposite to each other, the clutch wheel 42 moves toward the abutting wheel 41 side under the action of the elastic member 43, the clutch pin 423 leaves the arc-shaped hole 311 of the driven wheel and retracts into the arc-shaped hole 211 of the driving wheel, and the clutch mechanism 40 enters the door closing off position -2.

[0114] Refer to Figure 21 and Figure 22 , when the clutch mechanism 40 is in the door closing off position -2, if the driving wheel 21 rotates in the door closing direction, the driving wheel 21 and the abutting wheel 41 are engaged through the said clamping structure, that is, the clamping protrusion 212 of the driving wheel 21 and the clamping wall 412 of the abutting wheel 41 are clamped in the door closing direction, and the abutting wheel 41 rotates in the door closing direction with the driving wheel 21. When the abutting wheel 41 rotates to a position where the abutting pin 411 abuts against the end of the second concave portion 4222, the abutting wheel 41 drives the clutch wheel 42 to rotate in the door closing direction, and the clutch wheel 42 and the abutting wheel 41 rotate synchronously with the driving wheel 21 in the door closing direction, and the clutch wheel 42 remains in the door closing off position -2.

[0115] Refer to Figures 20 to 22 , when the clutch mechanism 40 is in the door closing off position -2, if the driving wheel 21 rotates in the door opening direction, the clamping protrusion 212 of the driving wheel 21 and the clamping wall 412 of the abutting wheel 41 are disengaged from the engagement, and the abutting wheel 41 does not rotate in the door opening direction with the driving wheel 21. When the end of the arc-shaped hole 211 of the driving wheel abuts against the clutch wheel 42, the clutch wheel 42 rotates in the door opening direction with the driving wheel 21. When the clutch wheel 42 rotates with the driving wheel 21 to a position where the second convex portion 4212 and the abutting pin 411 are opposite to each other, the clutch wheel 42 moves toward the driving wheel 21 side under the action of the abutting pin 411, and the clutch pin 423 extends from the arc-shaped hole 211 of the driving wheel into the arc-shaped hole 311 of the driven wheel, and the clutch mechanism 40 enters the door closing connection position -1.

[0116] Refer to Figure 2 and Figure 4, Further, in this embodiment, the refrigerator 100 further includes a control module for:

[0117] Obtain the status signal;

[0118] Obtain an opening / closing door signal;

[0119] When the opening / closing door signal is obtained, control the driving mechanism 20 to run in the reverse direction of the target movement direction of the opening / closing door signal. The target movement direction of the opening signal is the opening direction, and the target movement direction of the closing signal is the closing direction;

[0120] Control the driving mechanism 20 to run in the target movement direction of the opening / closing door signal according to the change of the status signal.

[0121] Specifically, when the opening signal is obtained, first control the driving mechanism 20 to run in the closing direction, and then control the driving mechanism 20 to run in the opening direction according to the change of the status signal; when the closing signal is obtained, first control the driving mechanism 20 to run in the opening direction, and then control the driving mechanism 20 to run in the closing direction according to the change of the status signal.

[0122] In this embodiment, the automatic door opening / closing module 200 may include an interaction module. The interaction module may receive an opening or closing door instruction from the user and output an opening or closing door signal to the control module according to the opening or closing door instruction of the user. The interaction module may be a voice interaction module or the like.

[0123] When receiving an opening or closing door instruction from the user, since the state position of the clutch mechanism 40 is uncertain, if the driving structure is directly controlled to run in the opening direction or the closing direction, it is very likely that the driving mechanism 20 cannot drive the driven mechanism 30 because the clutch mechanism 40 is in the opening disengaged position 2 or the closing disengaged position -2, resulting in the failure of opening or closing the door.

[0124] In the present invention, when the opening signal or the closing signal is obtained, the driving mechanism 20 is first controlled to run in the opposite direction to correct the state position of the clutch mechanism 40, and then the driving mechanism 20 is controlled to run in the target movement direction of the opening / closing door signal, which can realize automatically correcting the state position of the clutch mechanism 40 of the automatic door opening / closing module 200 according to the state signal of the clutch mechanism 40, ensure the accurate operation of the automatic door opening / closing module 200, avoid the situation that the driving force of the automatic door opening / closing module 200 cannot be output, and can control the operation of the automatic door opening / closing module 200 more precisely, improving the user experience.

[0125] Refer to Figure 2 and Figure 4, Further, in this embodiment, "controlling the driving mechanism 20 to run in the target movement direction of the opening / closing signal according to the change of the status signal" specifically includes:

[0126] When the status signal switches from the second signal B to the first signal A or from the first signal A to the second signal B, control the driving mechanism 20 to run in the target movement direction of the opening / closing signal.

[0127] When an opening signal is obtained and the driving mechanism 20 is controlled to run in the closing direction, if the status signal switches from the second signal B to the first signal A, it indicates that the clutch mechanism 40 switches from the opening disengaged position 2 to the opening connected position 1, or the clutch mechanism 40 switches from the disengaged position 0 between opening and closing to the closing connected position -1. If the status signal switches from the first signal A to the second signal B, it indicates that the clutch mechanism 40 switches from the opening connected position 1 to the disengaged position 0 between opening and closing. At this time, control the driving mechanism 20 to run in the opening direction. After a certain period of time, the clutch mechanism 40 will surely be able to switch to the opening connected position 1, thus realizing automatic opening, and there will be no situation where the driving force of the driving mechanism 20 in the opening direction is invalidly output.

[0128] When a closing signal is obtained and the driving mechanism 20 is controlled to run in the opening direction, if the status signal switches from the second signal B to the first signal A, it indicates that the clutch mechanism 40 switches from the closing disengaged position -2 to the closing connected position -1, or the clutch mechanism 40 switches from the disengaged position 0 between opening and closing to the opening connected position 1. If the status signal switches from the first signal A to the second signal B, it indicates that the clutch mechanism 40 switches from the closing connected position -1 to the disengaged position 0 between opening and closing. At this time, control the driving mechanism 20 to run in the closing direction. After a certain period of time, the clutch mechanism 40 will surely be able to switch to the closing connected position -1, thus realizing automatic closing, and there will be no situation where the driving force of the driving mechanism 20 in the closing direction is invalidly output.

[0129] Further, in this embodiment, the control module is further configured to calculate the running duration of the driving mechanism 20 in the direction opposite to the target movement direction of the opening / closing signal.

[0130] "Controlling the driving mechanism 20 to run in the target movement direction of the opening / closing signal according to the change of the status signal" specifically includes:

[0131] If when the driving mechanism 20 runs in the direction opposite to the target movement direction of the opening / closing signal and reaches the preset duration, the status signal is always the first signal A or the second signal B, then when the driving mechanism 20 runs in the direction opposite to the target movement direction of the opening / closing signal and reaches the preset duration, control the driving mechanism 20 to run in the target movement direction of the opening / closing signal.

[0132] In the present invention, the preset duration can be a duration preset by the staff with reference to the duration required for the driving mechanism 20 to operate and drive the state position of the clutch mechanism 40 to complete the switching, as long as the invention object can be achieved. For example, 1 second, or 2 seconds, or greater than the duration required for the clutch mechanism 40 to switch from the door-opening disengaged position to the door-closing connected position when the driving mechanism operates in the door-closing direction obtained through experiments, etc.

[0133] When an opening signal is obtained and the driving mechanism 20 is controlled to operate in the door-closing direction, if the status signal is always the first signal A, it indicates that the clutch mechanism 40 is in the door-closing connected position -1; if the status signal is always the second signal B, it indicates that the clutch mechanism 40 is in the door-closing disengaged position -2. At this time, when the driving mechanism 20 is controlled to operate in the door-opening direction, after a certain period of time, the clutch mechanism 40 will surely be able to switch to the door-opening connected position 1, thereby realizing automatic door opening, and the situation of ineffective output of the driving force of the driving mechanism 20 in the door-opening direction will not occur.

[0134] When a closing signal is obtained and the driving mechanism 20 is controlled to operate in the door-opening direction, if the status signal is always the first signal A within the preset duration, it indicates that the clutch mechanism 40 is in the door-opening connected position 1; if the status signal is always the second signal B within the preset duration, it indicates that the clutch mechanism 40 is in the door-opening disengaged position 2. At this time, when the driving mechanism 20 is controlled to operate in the door-closing direction, after a certain period of time, the clutch mechanism 40 will surely be able to switch to the door-closing connected position -1, thereby realizing automatic door closing, and the situation of ineffective output of the driving force of the driving mechanism 20 in the door-closing direction will not occur.

[0135] Adopting the technical solution of this embodiment can realize automatic correction of the state position of the clutch mechanism 40 of the automatic door opening and closing module 200, can ensure the accurate operation of the automatic door opening and closing module 200, avoid the situation that the driving force of the automatic door opening and closing module 200 cannot be output, can control the operation of the automatic door opening and closing module 200 more precisely, and improve the user experience.

[0136] Second Embodiment

[0137] Refer to Figures 1 to 4 In this embodiment, the structure of the refrigerator 100 can be the same as that of the refrigerator 100 in the first specific embodiment, and the structure of the automatic door opening and closing module 200 of the refrigerator 100 can be the same as that of the automatic door opening and closing module 200 in the first specific embodiment. The difference between this embodiment and the first specific embodiment may lie in the different control methods of the control module.

[0138] That is, in this embodiment, the refrigerator 100 includes a box body 10, a storage chamber 11 disposed in the box body 10, and a door body 12 for opening and closing the storage chamber 11. The refrigerator 100 also includes an automatic door opening and closing module 200, which includes: a driving mechanism 20, a driven mechanism 30 drivingly connected to the door body 12, a clutch mechanism 40 for connecting or disconnecting power transmission between the driving mechanism 20 and the driven mechanism 30, a detection mechanism for detecting the state of the clutch mechanism 40 and outputting a state signal, and a control module.

[0139] The status positions of the clutch mechanism 40 include a door opening connection position 1, a door closing connection position -1, and a door opening and closing disengagement position 0. When the clutch mechanism 40 is in the door opening connection position 1, if the driving mechanism 20 runs in the door opening direction, the driven mechanism 30 runs with the driving mechanism 20 and drives the door body 12 to open. If the driving mechanism 20 runs in the door closing direction, the clutch mechanism 40 sequentially enters the door opening and closing disengagement position 0 and the door closing connection position -1 from the door opening connection position 1. When the clutch mechanism 40 is in the door closing connection position -1, if the clutch mechanism 40 runs in the door closing direction, the driven mechanism 30 runs with the driving mechanism 20 and drives the door body 12 to close. If the driving mechanism 20 runs in the door opening direction, the clutch mechanism 40 sequentially enters the door opening and closing disengagement position 0 and the door opening connection position 1 from the door closing connection position -1. The status position of 40 also includes door opening disengagement position 2. When the clutch mechanism 40 is in the door opening disengagement position 2, if the drive mechanism 20 runs in the door opening direction, the clutch mechanism 40 remains in the door opening disengagement position 2. If the drive mechanism 20 is controlled to run in the door closing direction, the clutch mechanism 40 enters the door opening connection position 1, the door opening and closing disengagement position 0, and the door closing connection position-1 from the door opening disengagement position 2 in sequence. The status position of the clutch mechanism 40 also includes the door closing disengagement position-2. When the clutch mechanism 40 is in the door closing disengagement position-2, if the drive mechanism 20 is controlled to run in the door closing direction, the clutch mechanism 40 remains in the door closing disengagement position-2. If the drive mechanism 20 is controlled to run in the door opening direction, the clutch mechanism 40 enters the door closing connection position-1, the door opening and closing disengagement position 0, and the door opening connection position 1 in sequence from the door closing disengagement position-2.

[0140] When the status position of the clutch mechanism 40 is the door opening connection position 1 or the door closing connection position -1, the clutch mechanism 40 is in a connected state, the driving mechanism 20 and the driven mechanism 30 are in transmission connection, and the status signal is the first signal A. When the status position of the clutch mechanism 40 is the door opening disengagement position 2, or the door closing disengagement position -2, or the door opening and closing disengagement position 0, the clutch mechanism 40 is in a disengaged state, the driving mechanism 20 and the driven mechanism 30 are disconnected, and the status signal is the second signal B.

[0141] Reference Figure 2 and Figure 4 Furthermore, in this embodiment, the control module can be used to:

[0142] Acquire the status signal;

[0143] Obtain an opening / closing signal;

[0144] When the opening / closing signal is obtained, control the driving mechanism 20 to run in the target movement direction of the opening / closing signal and start timing. The target movement direction of the opening signal is the opening direction, and the target movement direction of the closing signal is the closing direction;

[0145] When the driving mechanism 20 runs in the target movement direction of the opening / closing signal for a preset duration, if the status signal is the second signal B, control the driving mechanism 20 to run in the reverse direction of the target movement direction of the opening / closing signal;

[0146] When the status signal switches from the second signal B to the preset status signal in a preset manner, control the driving mechanism 20 to run in the target movement direction of the opening / closing signal.

[0147] Specifically, when the opening signal is obtained, first control the driving mechanism 20 to run in the opening direction. When the driving mechanism 20 runs in the opening direction for a preset duration, if the status signal is the second signal B, control the driving mechanism 20 to run in the closing direction. When the status signal switches from the second signal B to the preset status signal, control the driving mechanism 20 to run in the opening direction; when the closing signal is obtained, first control the driving mechanism 20 to run in the closing direction. When the driving mechanism 20 runs in the closing direction for a preset duration, if the status signal is the second signal B, control the driving mechanism 20 to run in the opening direction. When the status signal switches from the second signal B to the preset status signal, control the driving mechanism 20 to run in the closing direction.

[0148] Since the driving mechanism 20 may not be able to drive the driven mechanism 30 when the clutch mechanism 40 is in the opening disengaged position 2 or the closing disengaged position -2, which may lead to failure of opening or closing.

[0149] The present invention first controls the driving mechanism 20 to run in the target movement direction, and at the same time determines the state of the clutch mechanism 40 by monitoring the status signal. If the status signal is always the second signal B within a certain period of time, it indicates that the driving mechanism 20 is in the opening disengaged position 2 or the closing disengaged position -2, and the driving mechanism 20 cannot output driving force to the driven mechanism 30. In this case, the state position of the clutch mechanism 40 is corrected by controlling the driving mechanism 20 to run in the opposite direction, and then the driving mechanism 20 is controlled to run in the target movement direction.

[0150] With such a setting, it is possible to automatically correct the status bit of the clutch mechanism 40 of the automatic door opening / closing module 200 according to the status signal of the clutch mechanism 40, which can ensure the accurate operation of the automatic door opening / closing module 200, avoid the situation where the driving force of the automatic door opening / closing module 200 cannot be output, and can control the operation of the automatic door opening / closing module 200 more precisely, improving the user experience.

[0151] Further, in this embodiment, "when the status signal switches from the second signal B to the preset status signal, control the driving mechanism 20 to run in the target movement direction of the door opening / closing signal" specifically includes:

[0152] When the status signal switches from the second signal B to the first signal A, control the driving mechanism 20 to run in the target movement direction of the door opening / closing signal.

[0153] If the obtained signal is a door opening signal, when the status signal switches from the second signal B to the first signal A, it indicates that the clutch mechanism 40 switches from the door opening disengaged position 2 to the door opening connected position 1. At this time, controlling the driving mechanism 20 to run in the door opening direction can achieve automatic door opening.

[0154] If the obtained signal is a door opening signal, when the status signal switches from the second signal B to the first signal A, it indicates that the clutch mechanism 40 switches from the door closing disengaged position -2 to the door closing connected position -1. At this time, controlling the driving mechanism 20 to run in the door opening direction can achieve automatic door closing.

[0155] With such a setting, it is possible to quickly correct the status bit of the clutch mechanism 40 and shorten the correction time.

[0156] Further, in another embodiment of the present invention, "when the status signal switches from the second signal B to the preset status signal, control the driving mechanism 20 to run in the target movement direction of the door opening / closing signal" specifically includes:

[0157] When the status signal switches from the second signal B to the first signal A and then from the first signal A to the second signal B, control the driving mechanism 20 to run in the target movement direction of the door opening / closing signal.

[0158] If the obtained signal is a door opening signal, when the status signal switches from the second signal B to the first signal A and then from the first signal A to the second signal B, it indicates that the clutch mechanism 40 first switches from the door opening disengaged position 2 to the door opening connected position 1, and then from the door opening connected position 1 to the door opening / closing disengaged position 0. At this time, controlling the driving mechanism 20 to run in the door opening direction, after a certain period of time, the clutch mechanism 40 will surely be able to switch to the door opening connected position 1, thus achieving automatic door opening.

[0159] If the obtained signal is a door - closing signal, when the status signal switches from the second signal B to the first signal A and then from the first signal A to the second signal B, it indicates that the clutch mechanism 40 first switches from the door - closing disengaged position - 2 to the door - closing connected position - 1, then from the door - closing connected position - 1 to the off - position 0 between opening and closing. At this time, control the driving mechanism 20 to run in the door - closing direction. After a certain period of time, the clutch mechanism 40 will surely be able to switch to the door - closing connected position - 1, thus realizing automatic door - closing.

[0160] With such a setting, misjudgment can be avoided, and the accuracy of the correction result of the status position of the clutch mechanism 40 can be improved.

[0161] Furthermore, in other embodiments of the present invention, "when the status signal switches from the second signal B to the preset status signal, control the driving mechanism 20 to run in the target movement direction of the opening / closing signal" may specifically include:

[0162] When the status signal switches from the second signal B to the first signal A, then from the first signal A to the second signal B, and then from the second signal B to the first signal A, control the driving mechanism 20 to run in the target movement direction of the opening / closing signal.

[0163] If the obtained signal is an opening signal, when the status signal switches from the second signal B to the first signal A, then from the first signal A to the second signal B, and then from the second signal B to the first signal A, it indicates that the clutch mechanism 40 first switches from the door - closing disengaged position - 2 to the door - closing connected position - 1, then from the door - closing connected position - 1 to the off - position 0 between opening and closing, and then from the off - position 0 between opening and closing to the door - closing connected position - 1. At this time, control the driving mechanism 20 to run in the opening direction. After a certain period of time, the clutch mechanism 40 will surely be able to switch to the door - opening connected position 1, thus realizing automatic door - opening.

[0164] If the obtained signal is a door - closing signal, when the status signal switches from the second signal B to the first signal A, then from the first signal A to the second signal B, and then from the second signal B to the first signal A, it indicates that the clutch mechanism 40 first switches from the door - closing disengaged position - 2 to the door - closing connected position - 1, then from the door - closing connected position - 1 to the off - position 0 between opening and closing, and then from the off - position 0 between opening and closing to the door - opening connected position 1. At this time, control the driving mechanism 20 to run in the door - closing direction. After a certain period of time, the clutch mechanism 40 will surely be able to switch to the door - closing connected position - 1, thus realizing automatic door - closing.

[0165] With such a setting, misjudgment can be avoided, and the accuracy of the correction result of the status position of the clutch mechanism 40 can be improved.

[0166] In summary, for the refrigeration device of the present invention, by providing the automatic door opening and closing module 200 and controlling the operation of the driving mechanism 20 according to the state signal of the clutch mechanism 40 to adjust the state position of the clutch mechanism 40, the problem of inconvenient manual door opening and closing for users can be solved.

[0167] Adopting the technical solution of the present invention, when the automatic door opening and closing is realized, the state position of the clutch mechanism 40 of the automatic door opening and closing module 200 can be automatically corrected according to the state signal of the clutch mechanism 40, ensuring the accurate operation of the automatic door opening and closing module 200, avoiding the situation where the driving force of the automatic door opening and closing module 200 cannot be output, and enabling more precise control of the operation of the automatic door opening and closing module 200, thus improving the user experience.

[0168] It should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0169] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present invention, and they are not intended to limit the protection scope of the present invention. Any equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A refrigeration device, comprising a box body, a storage chamber arranged in the box body, and a door body for opening and closing the storage chamber, characterized in that, The refrigeration equipment further includes an automatic door opening and closing module, and the automatic door opening and closing module includes: Driving mechanism; A driven mechanism, which is transmission-connected to the door body; A clutch mechanism, which is used to connect or disconnect the power transmission between the driving mechanism and the driven mechanism, the state position of the clutch mechanism includes a door-opening connection position, a door-closing connection position, and at least one disengaged position, the operation of the driving mechanism drives the state position of the clutch mechanism to switch, when the door is in the door-opening connection position, the clutch mechanism is in a connected state, the driving mechanism runs in the door-opening direction to drive the door body to open, when the door is in the door-closing connection position, the clutch mechanism is in a connected state, the driving mechanism runs in the door-closing direction to drive the door body to close, and when the at least one disengaged position, the clutch mechanism is in a disengaged state; A detection mechanism, which is used to detect the state of the clutch mechanism and output a state signal, when the clutch mechanism is in a connected state, the state signal is a first signal, when the clutch mechanism is in a disengaged state, the state signal is a second signal; A control module for: When the door opening / closing signal is obtained, the driving mechanism is controlled to run in the opposite direction of the target movement direction of the door opening / closing signal, and the driving mechanism is controlled to run in the target movement direction of the door opening / closing signal according to the change of the status signal, the target movement direction of the door opening signal is the door opening direction, and the target movement direction of the door closing signal is the door closing direction.

2. The refrigeration device according to claim 1, characterized in that, The control module is used for: When the state signal is switched from the second signal to the first signal or from the first signal to the second signal, the driving mechanism is controlled to move in the target movement direction of the door opening / closing signal.

3. The refrigeration device according to claim 1, characterized in that, The control module is also used to calculate the running time of the driving mechanism in the opposite direction of the target movement direction of the door opening / closing signal. “Controlling the driving mechanism to move in the target movement direction of the door opening / closing signal according to the change of the state signal” specifically includes: If the driving mechanism runs in the opposite direction to the target movement direction of the door opening / closing signal for a preset time period, and the status signal is always the first signal or the second signal, then when the driving mechanism runs in the opposite direction to the target movement direction of the door opening / closing signal for the preset time period, the driving mechanism is controlled to run in the target movement direction of the door opening / closing signal.

4. A refrigeration device, comprising a box body, a storage chamber provided in the box body, and a door body for opening and closing the storage chamber, characterized in that, The refrigeration equipment further includes an automatic door opening and closing module, and the automatic door opening and closing module includes: Driving mechanism; A driven mechanism, which is transmission-connected to the door body; A clutch mechanism is used to connect or disconnect the power transmission between the driving mechanism and the driven mechanism. The state positions of the clutch mechanism include an opening connection position, a closing connection position, and at least one disengaged position. The operation of the driving mechanism drives the switching of the state positions of the clutch mechanism. When in the opening connection position, the clutch mechanism is in a connected state, and the driving mechanism operates in the opening direction to drive the door body to open. When in the closing connection position, the clutch mechanism is in a connected state, and the driving mechanism operates in the closing direction to drive the door body to close. When in the at least one disengaged position, the clutch mechanism is in a disengaged state; A detection mechanism is used to detect the state of the clutch mechanism and output a state signal. When the clutch mechanism is in a connected state, the state signal is a first signal. When the clutch mechanism is in a disengaged state, the state signal is a second signal; A control module is used for: When obtaining the opening / closing signal, control the driving mechanism to operate in the target movement direction of the opening / closing signal and start timing. The target movement direction of the opening signal is the opening direction, and the target movement direction of the closing signal is the closing direction; When the driving mechanism operates in the target movement direction of the opening / closing signal for a preset duration, if the state signal is a second signal, then control the driving mechanism to operate in the reverse direction of the target movement direction of the opening / closing signal; When the state signal switches from the second signal to a preset state signal, control the driving mechanism to operate in the target movement direction of the opening / closing signal.

5. The refrigeration device according to claim 4, characterized in that, The control module is used for: When the state signal switches from the second signal to the first signal, control the driving mechanism to operate in the target movement direction of the opening / closing signal.

6. The refrigeration device according to claim 4, characterized in that, The control module is used for: When the state signal switches from the second signal to the first signal, and then from the first signal to the second signal, control the driving mechanism to operate in the target movement direction of the opening / closing signal.

7. The refrigeration device according to claim 4, wherein, The control module is used for: When the state signal switches from the second signal to the first signal, then from the first signal to the second signal, and then from the second signal to the first signal, control the driving mechanism to operate in the target movement direction of the opening / closing signal.

8. The refrigeration device according to claim 1 or 4, characterized in that, The at least one disengaged position includes a disengaged position between opening and closing. When the clutch mechanism is in the disengaged position between opening and closing, if the driving mechanism operates in the closing direction, the clutch mechanism enters the closing connection position from the disengaged position between opening and closing. If the driving mechanism operates in the opening direction, the clutch mechanism enters the opening connection position from the disengaged position between opening and closing. When the clutch mechanism is in the opening connection position, if the driving mechanism operates in the closing direction, the clutch mechanism enters the disengaged position between opening and closing from the opening connection position. When the clutch mechanism is in the closing connection position, if the driving mechanism operates in the opening direction, the clutch mechanism enters the disengaged position between opening and closing from the closing connection position.

9. The refrigeration device according to claim 8, characterized in that, The at least one disengaged position further includes an opening door disengaged position and a closing door disengaged position. When the clutch mechanism is in the opening door disengaged position, if the driving mechanism runs in the opening door direction, the clutch mechanism remains in the opening door disengaged position; if the driving mechanism is controlled to run in the closing door direction, the clutch mechanism sequentially enters the opening door connection position, the disengaged position between opening and closing doors, and the closing door connection position from the opening door disengaged position. When the clutch mechanism is in the closing door disengaged position, if the driving mechanism is controlled to run in the closing door direction, the clutch mechanism remains in the closing door disengaged position; if the driving mechanism is controlled to run in the opening door direction, the clutch mechanism sequentially enters the closing door connection position, the disengaged position between opening and closing doors, and the opening door connection position from the closing door disengaged position.

10. The refrigeration device according to claim 9, characterized in that, The driving structure includes a driving motor and a driving wheel drivingly connected to the driving motor. The driven mechanism includes a driven wheel drivingly connected to the door body. The clutch mechanism includes a clutch wheel. The driving wheel, the driven wheel, and the clutch wheel are centered on the same rotation axis. The driving wheel is disposed between the driven wheel and the clutch wheel. The clutch wheel can move away from or close to the driving wheel in the extending direction of the rotation axis. A clutch pin is disposed on the driving wheel side of the clutch wheel. The driving wheel is provided with a driving wheel arc-shaped hole centered on the rotation axis. The clutch pin is placed in the driving wheel arc-shaped hole and can slide in the driving wheel arc-shaped hole. The driven wheel is provided with a driven wheel arc-shaped hole centered on the rotation axis. When the clutch wheel moves toward the driving wheel side, the clutch pin extends into the driven wheel arc-shaped hole through the driving wheel arc-shaped hole and can slide in the driven wheel arc-shaped hole, and the clutch mechanism is in the connected state. When the clutch wheel moves away from the driving wheel side, the clutch pin leaves the driven wheel arc-shaped hole and retracts into the driving wheel arc-shaped hole, and the clutch mechanism is in the disengaged state. When both the end of the driving wheel arc-shaped hole and the end of the driven wheel arc-shaped hole abut against the clutch pin, the driven wheel rotates with the driving wheel.

11. The refrigeration device according to claim 10, characterized in that, The clutch mechanism further includes a holding wheel and an elastic member. The holding wheel is centered on the rotation axis. The clutch wheel is disposed between the driving wheel and the holding wheel. The elastic member is disposed between the driving wheel and the clutch wheel. A holding pin is disposed on the clutch wheel side of the holding wheel. On the clutch wheel side of the clutch wheel, convex portions and concave portions are sequentially arranged centered on the rotation axis. When the clutch wheel and the holding wheel rotate relative to each other until the convex portion and the holding pin are opposite to each other, the clutch wheel moves toward the driving wheel side under the action of the holding pin, the clutch pin extends into the driven wheel arc-shaped hole, and the clutch mechanism is in the connected state. When the clutch wheel and the holding wheel rotate relative to each other until the concave portion and the holding pin are opposite to each other, the clutch wheel moves toward the holding wheel side under the action of the elastic member, the clutch pin leaves the driven wheel arc-shaped hole, and the clutch mechanism is in the disengaged state.

12. The refrigeration device according to claim 11, wherein, The convex part includes a first convex part and a second convex part, the concave part includes a first concave part and a second concave part, the first convex part, the first concave part, the second convex part, and the second concave part are arranged in sequence centered on the rotation axis, and a clamping structure is provided between the abutting wheel and the driving wheel. When the driving wheel rotates in the door-opening direction until the arc-shaped hole of the driving wheel abuts against the clutch pin, the clutch wheel rotates in the door-opening direction with the driving wheel. When the clutch wheel rotates relative to the abutting wheel until the first convex part and the abutting pin are opposite to each other, the clutch mechanism enters the door-opening connection position. When the clutch mechanism is in the door-opening connection position, if the driving wheel rotates in the door-closing direction, when the clutch wheel rotates with the driving wheel until the first concave part and the abutting pin are opposite to each other, the clutch mechanism enters the disengaged position between opening and closing the door. When the clutch mechanism is in the disengaged position between opening and closing the door, if the driving wheel rotates in the door-closing direction, when the clutch wheel rotates with the driving wheel until the second convex part and the abutting pin are opposite to each other, the clutch mechanism enters the door-closing connection position. When the clutch mechanism is in the door-opening connection position, if the door body drives the driven wheel to rotate in the door-opening direction under an external force, when the end of the arc-shaped hole of the driven wheel abuts against the clutch pin, the clutch wheel rotates in the door-opening direction with the driven wheel. When the clutch wheel rotates with the driven wheel until the second concave part and the abutting pin are opposite to each other, the clutch mechanism enters the door-opening disengaged position. When the clutch mechanism is in the door-opening disengaged position, if the driving wheel rotates in the door-opening direction, the driving wheel and the abutting wheel are engaged through the clamping structure, and the abutting wheel rotates with the driving wheel. When the abutting wheel rotates until the abutting pin abuts against the end of the second concave part, the abutting wheel drives the clutch wheel to rotate, and the clutch mechanism remains in the door-opening disengaged position. When the clutch mechanism is in the door-opening disengaged position, if the driving wheel rotates in the door-closing direction, when the clutch wheel rotates with the driving wheel until the first convex part and the abutting pin are opposite to each other, the clutch mechanism enters the door-opening connection position. When the clutch mechanism is in the door-closing connection position, if the door body drives the driven wheel to rotate in the door-closing direction under an external force, when the end of the arc-shaped hole of the driven wheel abuts against the clutch pin, the clutch wheel rotates with the driven wheel. When the clutch wheel rotates until the second concave part and the abutting pin are opposite to each other, the clutch mechanism enters the door-closing disengaged position. When the clutch mechanism is in the door-closing disengaged position, if the driving wheel rotates in the door-closing direction, the driving wheel and the abutting wheel are engaged through the clamping structure, and the abutting wheel rotates with the driving wheel. When the abutting wheel rotates until the abutting pin abuts against the end of the second concave part, the abutting wheel drives the clutch wheel to rotate in the door-closing direction, and the clutch wheel remains in the door-closing disengaged position. When the clutch mechanism is in the door closing disengaged position, if the driving wheel rotates in the door opening direction, when the clutch wheel rotates with the driving wheel until the second convex portion and the abutting pin are opposite to each other, the clutch mechanism enters the door closing connected position.

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