An electric appliance, a door opening and closing device, and a control method of a clutch thereof

Abstract

The application belongs to the technical field of electrical appliances, and particularly relates to an electrical appliance, a door opening and closing device and a control method of a clutch thereof. The door opening and closing device comprises a driving structure, a top door mechanism, a rotating door mechanism and an angle acquisition unit. The driving structure comprises a driver, a first transmission assembly, a second transmission assembly connected with the driver and simultaneously in separable connection with the first transmission assembly, a clutching and pushing assembly for pushing the second transmission assembly to be separated from or connected with the first transmission assembly, and a linkage gear connected with the first transmission assembly and simultaneously connected with the top door mechanism and the rotating door mechanism. The angle acquisition unit is used for acquiring the rotating angle of the linkage gear. The door opening and closing device and the electrical appliance provided by the application can improve the safety and convenience.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of electrical appliances, and particularly relates to an electrical appliance, a door opening and closing device, and a control method of a clutch thereof. BACKGROUND

[0002] With the improvement of living standards, electrical appliances such as refrigerators, dishwashers, and disinfection cabinets are widely used in people's lives. In order to maintain the sealing performance of the above-mentioned electrical appliances, an adsorption structure or a negative pressure is usually arranged between the cabinet and the door body to stably fix the door body on the cabinet. Although the related performance of the electrical appliance is improved, the difficulty of opening the door body is also increased to a certain extent, and usually a large force is needed to pull it open, which is inconvenient to use. Especially for the elderly, children, patients and other groups, not only is the operation difficult, but also there is a certain safety risk. SUMMARY

[0003] To solve the above technical problems, the present application provides an electrical appliance, a door opening and closing device, and a control method of a clutch thereof, aiming to improve the convenience, safety and reliability of opening the door body of the electrical appliance to a certain extent.

[0004] The technical scheme of the present application is as follows:

[0005] On the one hand, the present application provides a door opening and closing device, comprising: a driving structure, a top door mechanism, a rotating door mechanism, and an angle acquisition unit, wherein the driving structure comprises:

[0006] a driver;

[0007] a first transmission assembly;

[0008] a second transmission assembly connected with the driver and simultaneously connectable with the first transmission assembly;

[0009] a clutch and pushing assembly for pushing the second transmission assembly to be separated from or connected with the first transmission assembly;

[0010] a linkage gear connected with the first transmission assembly and simultaneously connected with the top door mechanism and the rotating door mechanism;

[0011] wherein the angle acquisition unit is used for acquiring the rotation angle of the linkage gear.

[0012] In some embodiments, the linkage gear further comprises:

[0013] a body rotatably arranged on a base;

[0014] a first pushing part arranged on the body and used for pushing the rotating door mechanism to rotate when the body rotates in a forward direction, so as to open the door body;

[0015] A second pushing part is arranged on the body and pushes the door mechanism to rotate to close the door body when the body rotates reversely.

[0016] In some embodiments, the door mechanism rotates a first angle between the first pushing part and the second pushing part, and the body is coaxially arranged on the base.

[0017] In some embodiments, the door mechanism comprises a first tooth part, and the linkage gear further comprises a third pushing part provided with a second tooth part meshing with the first tooth part to drive the door mechanism to push the door body when the body rotates forwardly.

[0018] In some embodiments, the body is provided with a rotation limiting groove, the body is coaxially arranged on the base, the door mechanism can rotate in the rotation limiting groove, and the first pushing part and the second pushing part are groove walls of the rotation limiting groove in the radial direction of the linkage gear.

[0019] In some embodiments, the door mechanism comprises a transmission part and a door part, a first end of the door part is rotatably arranged on the door body, a second end of the door part is rotatably connected with a first end of the transmission part, and a second end of the transmission part is rotatably arranged on the base; the linkage gear can drive the transmission part to rotate to drive the door part to rotate the door body.

[0020] In some embodiments, the door mechanism comprises:

[0021] A linkage part, a first end of the linkage part is rotatably arranged on the base, and a second end of the linkage part is connected with the linkage gear;

[0022] A door part, a first end of the door part is rotatably connected with the linkage part, and a second end of the door part is used to push the door body;

[0023] Wherein, the linkage gear drives the linkage part to rotate to drive the door part to push the door body.

[0024] In some embodiments, the door mechanism further comprises:

[0025] An elastic limiting part connected with the linkage part and the base respectively to maintain the linkage part at a preset angle.

[0026] In some embodiments, one of the door part and the linkage part is provided with a waist-shaped hole, and the other is provided with a pin shaft rotatably arranged in the waist-shaped hole.

[0027] In some embodiments, the top door mechanism is rotatably arranged on the base, and the top door mechanism comprises a first tooth portion engaged with the linkage gear and a top door portion for pushing the door body, the linkage gear drives the top door mechanism to rotate relative to the base through the first tooth portion, and drives the top door portion to push the door body.

[0028] In some embodiments, the top door mechanism further comprises:

[0029] A limiting member is arranged on the base, and the top door mechanism abuts against the limiting member when the top door mechanism rotates to a preset angle relative to the base;

[0030] A tensioning member is connected to the top door mechanism and the base at two ends respectively, and maintains the top door mechanism at the preset angle.

[0031] In some embodiments, the top door mechanism is in a cam shape, and the first tooth portion and the top door portion are located on the rim of the cam.

[0032] In some embodiments, the clutching and pushing assembly comprises a pushing sleeve arranged on the second transmission assembly and a pushing rod for pushing the pushing sleeve, the pushing sleeve is pushed by the pushing rod, so that the first transmission assembly is separated from the second transmission assembly.

[0033] In some embodiments, the second transmission assembly comprises:

[0034] A first transmission member, the first transmission member comprises a connecting end connected to the first transmission assembly and a pushing end embedded in the pushing sleeve, and an axial through slot is formed on the inner surface of the first transmission member;

[0035] A second transmission member, the outer surface of the second transmission member is provided with a clamping block, and when the first transmission member is arranged on the second transmission member, the clamping block is axially and slidingly embedded in the axial through slot;

[0036] A transmission shaft connected to the driver, and the second transmission member and the first transmission assembly are arranged on the transmission shaft.

[0037] In some embodiments, the pushing sleeve pushes the second transmission assembly in a first direction, the pushing sleeve is provided with a first pushing surface, the pushing rod is provided with a second pushing surface in contact with the first pushing surface, and the included angle between the first direction and the first pushing surface is an acute angle.

[0038] In some embodiments, the pushing sleeve pushes the second transmission assembly in a first direction;

[0039] The pushing sleeve is provided with two first pushing grooves, and the two first pushing grooves are arranged on opposite sides of the pushing sleeve.

[0040] The pushing rod comprises two parallel pushing arms and a connecting portion connecting the two pushing arms, and the second pushing faces are arranged on the ends of the two pushing arms away from the connecting portion.

[0041] In another aspect, the application further provides an electric appliance comprising a cabinet, a door body rotatably arranged on the cabinet, and the door opening and closing device.

[0042] In some embodiments, the electric appliance is one of a refrigerator, a sterilizer, and a dishwasher.

[0043] The application further provides a door opening and closing control method applied to the electric appliance, comprising:

[0044] Obtaining angle information collected by the angle acquisition unit, the angle information representing an angle value of rotation of the linkage gear;

[0045] According to the angle information, determining whether to control the clutch pushing assembly to push the second transmission assembly so as to separate the first transmission assembly from the second transmission assembly.

[0046] In some embodiments, the determination according to the angle information whether to control the clutch pushing assembly to push the second transmission assembly comprises:

[0047] Determining whether the angle value represented by the angle information is greater than or equal to a preset angle value;

[0048] If yes, controlling the clutch pushing assembly to push the second transmission assembly so as to separate the first transmission assembly from the second transmission assembly.

[0049] In some embodiments, the determination according to the angle information whether to control the clutch pushing assembly to push the second transmission assembly comprises:

[0050] According to the angle information, obtaining an angular acceleration value of the linkage gear;

[0051] According to the angular acceleration value, determining whether to control the clutch pushing assembly to push the second transmission assembly so as to separate the first transmission assembly from the second transmission assembly.

[0052] In some embodiments, the determining whether to control the clutching and pushing assembly to push the second transmission assembly according to the angular acceleration value comprises:

[0053] determining whether the angular acceleration value is greater than or equal to a preset acceleration value;

[0054] If yes, the clutching and pushing assembly is controlled to push the second transmission assembly, so that the first transmission assembly is separated from the second transmission assembly.

[0055] The present application has at least the following advantages:

[0056] The electric appliance, the door opening and closing device, and the control method of the clutch provided by the present application realize automatic door pushing operation and door turning operation through the door pushing mechanism and the door turning mechanism driven by the driving mechanism, thereby improving the convenience and safety of door opening operation. The door pushing mechanism can push the door body, break through the door opening resistance, and push the door body to a set angle, thereby greatly reducing the resistance of the door turning mechanism and improving the automatic door opening speed. Further, the first transmission assembly and the second transmission assembly are connected in a separable manner, and the active clutching is realized under the action of the clutching and pushing assembly. The second transmission assembly is connected to the driver, and the first transmission assembly is connected to the door pushing mechanism and the door turning mechanism, so that the clutching between the driving mechanism and the executing mechanism is realized, the interference between the automatic door opening and closing operation and the manual door opening and closing operation is effectively avoided, the driver, the door pushing mechanism, and the door turning mechanism can be protected through the flexible and controllable clutching function, the rotation angle of the linkage gear is monitored in real time through the angle monitoring unit, the working condition is determined, and the action of the clutching and pushing assembly and the driving mechanism is fed back, thereby greatly improving the reliability of the door opening and closing. BRIEF DESCRIPTION OF DRAWINGS

[0057] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0058] Figure 1 The structure diagram of the door opening and closing device provided by the embodiment of the present application;

[0059] Figure 2 The exploded view of the clutching device of the door opening and closing device in Figure 1

[0060] Figure 3 The assembly state top view of the clutching device of the door opening and closing device in Figure 1

[0061] ​​Figure 4 is Figure 1 the assembled front view of the clutch device of the switch door device in

[0062] Figure 5 is Figure 3 the A-A sectional view of the switch door device in

[0063] Figure 6 is Figure 1 the top view of the first transmission assembly of the switch door device in

[0064] Figure 7 is Figure 1 the front view of the first transmission assembly of the switch door device in

[0065] Figure 8 is Figure 7 the A-A sectional view of the switch door device in

[0066] Figure 9 is Figure 1 the bottom view of the first transmission assembly of the switch door device in

[0067] Figure 10 is Figure 1 the structural schematic diagram of the rotating door mechanism of the switch door device in

[0068] Figure 11 is Figure 1 the arrangement position schematic diagram of the rotating door mechanism of the switch door device in

[0069] Figure 12 is Figure 1 the structural schematic diagram of the top door mechanism of the switch door device in

[0070] Figure 13 is Figure 1 another structural schematic diagram of the top door mechanism of the switch door device in

[0071] Figure 14 is Figure 1 the schematic diagram of the driving member and the linkage gear of the switch door device in

[0072] Figure 15 is Figure 1 the schematic diagram of the linkage member and the linkage gear of the switch door device in

[0073] Figure 16 is Figure 1 the top view of the linkage gear of the switch door device in

[0074] Figure 17 is Figure 1 the front view of the linkage gear of the switch door device in

[0075] Figure 18 is a bottom view of the linkage gear of the switch door device in Figure 1

[0076] Figure 19 is a base schematic view of the switch door device in Figure 1

[0077] Figure 20 is an assembly schematic view of the switch door device in Figure 1

[0078] Figure 21 is an assembly state top view of the switch door device in Figure 1

[0079] Figure 22 is an assembly state bottom view of the switch door device in Figure 1

[0080] Figure 23 is a door closing return process principle schematic view of the switch door device in Figure 1

[0081] Figure 24 is a front view of the switch door device in Figure 1

[0082] Figure 25 is an A-A sectional view of Figure 22

[0083] Figure 26 is a refrigerator assembly arrangement schematic view of the switch door device in Figure 1

[0084] Figure 27 is a whole schematic view of the refrigerator provided by the embodiment of the present application

[0085] Figure 28 is a top door state schematic view of the switch door device in Figure 1

[0086] Figure 29 is an open door and turn door state schematic view of the switch door device in Figure 1

[0087] Figure 30 is a close door and turn door state schematic view of the switch door device in Figure 1 In the drawings:

[0088]

[0089] ​​​​​​​​​​​​100 - driving mechanism, 110 - driver, 120 - linkage gear, 121 - third tooth part, 122 - third pushing part, 1221 - second tooth part, 123 - rotation limiting groove, 1231 - first pushing part, 1232 - second pushing part, 124 - reset spring accommodating groove, 125 - second fixed seat;

[0090] turning door mechanism 200, 210 - driving member, 211 - coaxial rotating shaft, 212 - first fixed seat, 220 - turning door member, 230 - hinged seat, 240 - reset spring;

[0091] 300 - top door mechanism, 310 - linkage member, 311 - linkage member pivot hole, 312 - reduced thickness sink, 313 - first tooth part, 314 - third fixed seat, 320 - top door member, 322 - waist-shaped hole, 330 - pushing seat, 340 - shock pad, 350 - linkage member pivot shaft, 360 - pin shaft, 370 - elastic limiting member, 380 - top door member, 381 - fourth tooth part, 382 - top door part, 383 - reinforcing rib;

[0092] 400 - clutch device, 410 - first transmission assembly, 411 - clamping groove, 412 - central shaft hole, 413 - inner tooth, 414 - extension cylinder, 420 - second transmission assembly, 421 - first transmission member, 4211 - connecting end, 4212 - pushing end, 4213 - support flange, 4214 - first transmission member inner surface, 4215 - outer tooth, 4216 - limiting boss, 4217 - axial through groove, 422 - second transmission member, 4221 - second transmission member outer surface, 4222 - clamping block, 4223 - transmission shaft hole, 4224 - first limiting surface, 423 - transmission shaft, 4231 - second limiting surface, 430 - clutch pushing assembly, 431 - pushing sleeve, 4311 - first pushing surface, 4312 - first pushing groove, 4313 - sunken boss, 432 - pushing rod, 4321 - second pushing surface, 4322 - limiting baffle, 4323 - pushing arm, 4324 - connecting part, 433 - linear driver;

[0093] 500 - angle acquisition unit;

[0094] 600 - base, 610 - driving motor fixing groove, 620 - second stop member, 621 - stop profile, 630 - first stop member, 631 - elastic member accommodating groove, 632 - guide groove, 633 - linkage member first stop surface, 634 - linkage member second stop surface, 635 - fourth fixed seat, 641 - third stop member, 642 - fourth stop member, 650 - coaxial rotating shaft seat;

[0095] 910 - box body, 920 - door body. DETAILED DESCRIPTION

[0096] With reference to the drawings and specific examples described below, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of the present application.

[0097] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement condition and the like between components in a certain posture, and if the certain posture changes, the directional indications will also change accordingly.

[0098] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplicity, the components and arrangements of the various examples are described in the following detailed description. These are, of course, merely examples and are not intended to limit the application from that described. Furthermore, the application can be implemented in a wide variety of other ways not necessarily explicitly described herein. Additionally, the same reference numbers in different examples can identify the same components or same

[0099] The present application will be described below with reference to the drawings and specific examples:

[0100] The present embodiment provides an electric appliance, a door opening and closing device and a control method of a clutch thereof, aiming to improve the efficiency and convenience of door opening and closing operation to some extent, and at the same time, to solve the problem of large resistance in the initial stage of manual opening of the refrigerator door and fast rotation in the subsequent stage, which makes the door opening and closing process not smooth.

[0101] The door opening and closing device involved in the present embodiment is used to be assembled to an electric appliance configured with a door body that can be deflected to open and close, and the opening and closing of the door body is driven by the action of the door opening and closing device. The device can be a refrigerator, a sterilizer, a dishwasher and the like.

[0102] Referring to Figure 1 , specifically, the electric appliance includes a box body 910 and a door body 920 rotatably arranged on the box body 910, and the box body 910 is provided with a taking opening. The door body 920 is rotated on the box body 910 to close or open the taking opening of the box body 910.

[0103] Referring to Figure 1In some embodiments, the switch door device can include a driving mechanism 100, a rotating door mechanism 200 and a top door mechanism 300. The driving mechanism 100 outputs driving force and can drive the rotating door mechanism 200 and the top door mechanism 300 to implement full rotation operation and initial top door operation of the door body 920. That is, the rotating door mechanism 200 and the top door mechanism 300 of the present embodiment are both driven by the driving mechanism 100 and are both provided with driving force by the driving mechanism 100. The driving mechanism 100 includes a driver 110 providing power and a linkage gear 120 connected to the top door mechanism 300 and the rotating door mechanism 200, respectively, so that the driver 110 drives the top door mechanism 300 and the rotating door mechanism 200 to deflect relative to the base 600 through the linkage gear 120. The driving mechanism 100 is further provided with a clutch device 400 connected between the linkage gear 120 and the driver 110 to achieve separable connection, establish or cut off the connection between the linkage gear 120 and the driver 110, so as to flexibly control the on-off of the transmission path between the driver 110 and the top door mechanism 300 and the rotating door mechanism 200. Thus, when manually switching the door, the top door mechanism 300 and the rotating mechanism 200 do not interfere with the driving mechanism 100, and when the device fails or is disturbed by the environment, the connection of the driving mechanism 100 can be cut off to ensure the safety of the device structure and avoid mechanical damage.

[0104] Referring to Figure 10 and Figure 12 In some embodiments, the rotating door mechanism 200 or the top door mechanism 300 can be arranged in cooperation with the driving mechanism 100, respectively, to separately implement the switch door structure scheme or the top door structure scheme. The top door mechanism 300 of the present embodiment cooperates with the driving mechanism 100 to break through the opening door resistance such as adsorption resistance of the door body 920 and the box body 910, negative pressure and the like, to open the door body 920 to a preset angle, so as to facilitate subsequent automatic or manual door opening operation. The top door mechanism 300 includes a linkage member 310 and a top door member rotatably connected thereto, and the linkage member 310 is rotatably arranged on the base 600. The rotating door mechanism 200 includes a driving member 210 rotatably connected to the base 600 and a rotating door member 220 rotatably connected to the driving member 210, and the rotating door member 220 is further hingedly connected to the door body 920. The linkage gear 120 is connected to the driving member 210 and the linkage member 310, respectively.

[0105] Referring to Figure 1In some embodiments, in order to meet the assembly precision requirement or realize efficient assembly, a separate base 600 can be arranged on the cabinet 910 for carrying the driving mechanism 100, the swing door mechanism 200 and the top door mechanism 300, so that the driving mechanism 100, the swing door mechanism 200 and the top door mechanism 300 can be assembled on the base 600, and then the base 600 is assembled on the cabinet 910 as a whole, realizing the standardized installation of the base 600 on the electrical appliance, ensuring the stability of the installation and the assembly precision and reliability. On the other hand, when the base 600 is assembled on the refrigerator or other electrical appliance as a whole, the installation is efficient and reliable.

[0106] In the present embodiment, the base 600 is a separate component arranged in the cabinet 910. In other embodiments, the base 600 can also be a part of the cabinet 910 and be formed on the cabinet 910 instead of being a separate component.

[0107] It is worth noting that the output force is inversely proportional to the speed under the condition that the output power is constant. Therefore, under the condition that the driving power is kept constant, a larger pushing force can be obtained at a lower door body deflection speed in the top door stage, so that the top door mechanism 300 can quickly and reliably push open the door body 920. After the swing door mechanism 200 is put into operation, a higher swing door speed can be obtained under the condition that the swing door force is small, so that the swing door operation can be quickly completed, and the door can be opened to the position.

[0108] Referring to Figure 1 , Figure 15 , Figure 22 and Figure 25 , the clutch device 400 controls the transmission connection relationship between the driving mechanism 100 and the top door mechanism 300 and the swing door mechanism 200, effectively adapts to different requirements of manual and automatic door opening and closing, and various mechanical failures, and improves the reliability and safety of the device structure. An angle acquisition unit 500 can also be arranged to monitor the rotation angle of the linkage gear 120 in real time, and the rotation angle information can be used as a basis for feedback control of the opening and closing device action, further improving the automatic control reliability.

[0109] In some embodiments, the clutch device 400 is provided with a separable first transmission assembly 410 and a second transmission assembly 420 connected to the linkage gear 120 and the driver 110 respectively, so that the transmission relationship between the driver 110 and the linkage gear 120 is connected and interrupted through the connection and separation of the first transmission assembly 410 and the second transmission assembly 420. In order to reliably realize the switching of the clutch state, the clutch pushing assembly 430 pushes the connection and separation of the first transmission assembly 410 and the second transmission assembly 420.

[0110] In some embodiments, the rotation angle value of the linkage gear 120 can also control the start-stop and forward-reverse rotation of the driver 110. Thus, the driver 110 can be directly controlled as a whole, ensuring the control efficiency.

[0111] In some embodiments, the rotation angle value of the linkage gear 120 can also control the action of the clutch and push assembly 430, realizing the feedback control of the connection and separation operation of the first transmission assembly 410 and the second transmission assembly 420.

[0112] In some embodiments, the angle acquisition unit 500 can be assembled on the base 600 as a component of the door opening and closing device, and can be various types of angle sensors for detecting the rotation angle of the linkage gear 120 relative to the base 600. A magneto-electric angle sensor, a magnetic angle sensor, or a photoelectric angle sensor, or an angle encoder can be used.

[0113] In some embodiments, the angle acquisition unit 500 can be set as a travel switch connected between the box body 910 and the door body 920, and an angle sensor for directly detecting the angle position of the door body 920 relative to the box body 910 and feeding back to the control of the door opening and closing device driving mechanism 100.

[0114] In some embodiments, during the door opening and closing operation, the deflection angle of the linkage gear 120 can be tracked and detected by the angle acquisition unit 500, and the deflection angle can be set as a vector angle, that is, the deflection direction of the linkage gear 120 can be distinguished, and the positive rotation and the reverse rotation can be distinguished, and the real-time detection value can be fed back to the control element of the door opening and closing device, to control the driver 110 and the clutch and push assembly 430.

[0115] In some embodiments, the linkage gear 120 is a component of the direct drive door mechanism 300 and the door pushing mechanism 300, and its driving mode should meet the deflection of the door pushing mechanism 300 and the action mode of the door pushing mechanism 300 at the same time. The detailed structure of the linkage gear 120 is described below.

[0116] Referring to Figure 14 , Figure 15 , Figure 16 , Figure 17 and Figure 18In some embodiments, the body of the linkage gear 120 can be arranged as a rotating member on the base 600, provided with a third tooth portion 121 engaged with the upstream driver 110, and drives the top door mechanism 300 and the driving member 210 by rotating output torque. To meet the driving requirements of the driving member 210, a first pushing portion 1231 and a second pushing portion 1232 can be arranged on the body in a relative manner, and a space sufficient to accommodate the driving member 210 is left between the two, so that in the actual assembly state, the driving member 210 can be pushed from both sides by the first pushing portion 1231 and the second pushing portion 1232 respectively to rotate, so that when the body of the linkage gear 120 rotates forward and reversely, the driving member 210 is pushed in two opposite directions respectively, thereby driving the rotating door member 220 to push or pull the door body 920 to achieve the opening and closing operations.

[0117] In some embodiments, the second pushing portion 1232 can be arranged as an opening pushing portion, and the first pushing portion 1231 can be arranged as a closing pushing portion; that is, when the linkage gear 120 rotates forward, the driving member 210 is pushed towards the door body 920 by the second pushing portion 1232 to push the rotating door member 220 to push the door body 920 to open; when the linkage gear 120 reversely rotates, the driving member 210 is pushed away from the door body 920 by the first pushing portion 1231 to push the rotating door member 220 to pull the door body 920 to close.

[0118] In some embodiments, in the opening process, in order to meet the timing control of first implementing the top door operation and then implementing the rotating door operation, the spacing between the first pushing portion 1231 and the second pushing portion 1232 can be matched and designed to leave a certain deflection space, so that when the driving member 210 is deflected relative to the body, it needs to rotate a first angle from the first pushing portion 1231 to the second pushing portion 1232, so that by setting the initial position of the driving member 210, a time difference between the deflection of the linkage gear 120 and the deflection of the driving member 210 can be obtained, so that in the opening process, when the linkage gear 120 rotates and drives the top door mechanism 300 to implement the pushing operation, the rotating door mechanism 200 does not simultaneously implement the active rotating door operation, but delays for a period of time before the rotating door mechanism 200 implements the active rotating door operation under the driving of the linkage gear 120.

[0119] In some embodiments, the initial position of the driving member 210 can be arranged to abut against the first pushing portion 1231, so that in the opening process, after the linkage gear 120 starts to rotate, the driving member 210 gradually approaches the second pushing portion 1232 from the first pushing portion 1231, so that the time of pushing the driving member 210 by the second pushing portion 1232 can be accurately controlled, so that the rotating door mechanism 200 and the top door mechanism 300 are seamlessly connected, the door is opened smoothly, and defects such as jamming and vibration are avoided.

[0120] According to the design opening degree of the door body 920, the deflection angle of the driving member 210 can be matched and set to meet the rotating door requirement, and the first angle is controlled. The value of the first angle is also related to the initial position and length of the driving member 210, and can be adjusted and set according to the actual assembly working condition.

[0121] Referring to Figure 1 , Figure 10 and Figure 19 In some embodiments, in order to improve the position control accuracy of the driving member 210 and avoid dislocation of the driving member 210, a second stopper 620 can be arranged on the base 600 to avoid excessive deflection. The second stopper 620 can be arranged between the second pushing part 1232 and the first pushing part 1231, and the initial position of the driving member 210 can be arranged to abut against the first pushing part 1231 to limit the driving member 210 between the second stopper 620 and the first pushing part 1231, thereby ensuring the reliability of the initial position. According to the width of the driving member 210 and the preset initial position, the initial position of the first pushing part 1231 is referred to, and the distance between the second stopper 620 and the first pushing part 1231 is slightly greater than the width of the driving member 210 as the standard to set the position of the second stopper 620.

[0122] In some embodiments, a stopper profile 621 matching the side wall profile of the driving member 210 can also be arranged on the second stopper 620 to ensure the uniformity of the stress of the driving member 210 in the stop state and avoid local stress concentration and structural damage.

[0123] In some embodiments, in order to improve the rotation control accuracy and reliability of the driving member 210, the first end of the body and the driving member 210 can be coaxially and rotatably arranged on the base 600, so that the angle control of the driving member 210 can be realized by controlling the rotation angle of the body, greatly improving the convenience. In other embodiments, the first end of the driving member 210 can also be arranged coaxially with the body, and only the driving member 210 is pivotally connected to the body of the linkage gear 120 to form a structure similar to a crankshaft drive; the driving member 210 can also be rotatably arranged on the base, and two pushing arms are extended and the first pushing part 1231 and the second pushing part 1232 are arranged on the two pushing arms respectively, and the driving member 210 is arranged between the two pushing arms to realize the pushing operation. The position and structure specifications of the matching arrangement can be determined according to experiments.

[0124] In some embodiments, in order to drive the top door mechanism 300, a third pushing part 122 is arranged on the body of the linkage gear 120 to connect and drive the top door mechanism 300. During the door opening operation, the body of the linkage gear 120 rotates forward and drives the top door mechanism 300 to push the door body 920. Conversely, during the door closing operation, the body of the linkage gear 120 rotates reversely to drive the top door mechanism 300 to reset.

[0125] In some embodiments, the top door operation only needs to break the door opening resistance mainly by adsorption force between the door body 920 and the box body 910, and open the door body 920 by a small angle, so the thrust stroke of the top door mechanism 100 is also small; accordingly, the stroke and time of the linkage gear 120 connection and the thrust of the top door mechanism 100 can also be set to be relatively short only in the top door process, that is, after the door turning mechanism 200 actively turns the door, the top door mechanism 100 can be disconnected from the linkage gear 120 or only continue to be separated for a relatively short period of time, which simplifies the structure linkage state in the working state and avoids mutual interference.

[0126] Referring to Figure 15 In order to improve the time control accuracy and reliability of connection and disconnection, the first tooth part 313 can be arranged on the top door mechanism 100, and the second tooth part 1221 engaged and driven with the first tooth part 313 is arranged on the third thrust part 122, so as to stably drive through the engagement and driving mode, and at the same time, the thrust stroke can be adjusted by controlling the length and number of teeth of the engaged tooth parts. In the door opening process, the linkage gear 120 rotates forward, that is, the top door mechanism 100 is driven by the engagement and driving mode to thrust the door body 920, until the engagement is disengaged, and the top door mechanism 100 will no longer be forced; in the door closing process, the linkage gear 120 rotates reversely, and when the linkage gear 120 rotates by a set angle, the engagement connection between the first tooth part 313 and the second tooth part 1221 is re-established, and then the top door mechanism 100 moves in the reverse door opening direction under the driving of the linkage gear 120 until it is reset.

[0127] In some embodiments, the top door stroke control of the top door mechanism 100 can be realized based on the deflection control of the driving part 210. Specifically, the angle of the linkage gear 120 rotated within the time period from the beginning of the engagement of the first tooth part 313 and the second tooth part 1221 to the disengagement can be set as the second angle. Considering that the first angle is the angle of the body of the linkage gear 120 rotated relative to the driving part 210 when the body starts to rotate, that is, the angle of the door turning mechanism 200 delayed when the body starts to rotate forward, the first angle can be controlled to be less than or equal to the second angle, that is, the engagement time period is controlled based on this, so as to control the length of the engaged tooth parts.

[0128] In some embodiments, in order to ensure the smoothness of the connection between the top door and the door turning process, the difference between the first angle and the second angle can be controlled to be within 1 degree. That is, when the driving part 210 abuts against the second thrust part 1232, the first tooth part 313 and the second tooth part 1221 still maintain a small amount of engagement state or maintain the last engagement tooth pair.

[0129] Referring to Figure 14 and Figure 16In some embodiments, in order to smoothly control the deflection posture of the driving member 210, a rotation limiting groove 123 can be formed on the body of the linkage gear 120, and the body of the linkage gear 120 is arranged coaxially rotatably on the base 600 with the driving member 210, and the coaxial rotating shaft 211 can be arranged in the rotation limiting groove 123, and the driving member 210 is arranged rotatably in the rotation limiting groove 123, and the first pushing part 1231 and the second pushing part 1232 are arranged as the groove wall of the rotation limiting groove 123 in the radial direction of the linkage gear 120, that is, as a fan-shaped groove. The driving member 210 is accommodated in the rotation limiting groove 123, which reduces the overall assembly height, and the sink structure can also effectively protect the impact resistance and vibration performance of the pushing area of the driving member 210, and ensure the reliability of the structure.

[0130] In some embodiments, in order to ensure that the driving member 210 is in the initial position against the first pushing part 1231, and to resist the influence of vibration on its position and posture, a reset spring 240 can be arranged, and the two ends thereof are connected to the body of the linkage gear 120 and the driving member 210 respectively, and a tensioning force is maintained between the driving member 210 and the first pushing part 1231, forming a mutual approaching tendency; at the same time, the driving member 210 is guided to abut against the second pushing part 1231 after the door body 920 is opened. In other embodiments, the reset spring 240 can also be replaced by a spring leaf or other elastic material, and the limiting can be realized by elastic pushing, tensioning and other modes.

[0131] In some embodiments, in order to facilitate fixation, a first fixing seat 212 can be arranged on the driving member 210 for fixing the first end of the reset spring 240; and a second fixing seat 125 can also be arranged on the body of the linkage gear 120 for fixing the second end of the reset spring 240.

[0132] Referring to Figure 16 , considering the deformation characteristics of the reset spring 240, a reset spring accommodating groove 124 is formed on the body of the linkage gear 120, and the reset spring 240 is arranged in the reset spring accommodating groove 124, which not only realizes the assembly of the reset spring 240 on the linkage gear 120, but also avoids the impact and scratching of the reset spring 240 by the outside world, and ensures the stability of the deformation state. In this embodiment, the reset spring accommodating groove 124 can also be arranged as a fan-shaped groove type, and the width of the side close to the rotation limiting groove 123 is relatively larger, so as to adapt to the deflection process of the driving member 210 and avoid the reset spring 240 from being abutted and bent.

[0133] In some embodiments, in order to improve the stability and reliability of the linkage gear 120, a third stopper 641 and a fourth stopper 642 can be arranged on the base 600, respectively arranged at both ends of the rotation track of the linkage gear 120, to prevent excessive rotation and ensure the accuracy of the rotation in the forward direction and the reverse direction. When the door body 920 is closed, the third stopper 641 stops the rotation of the linkage gear 120, and when the door body 920 is opened to the limit position, the fourth stopper 642 stops the rotation of the linkage gear 120.

[0134] In some embodiments, the rotation limit angle of the linkage gear 120 can be determined according to the design opening of the door body 920, and the rotation angle of the linkage gear 120 between the third stopper 641 and the fourth stopper 642 can be set to 130 degrees, 90 degrees or more, or 120 degrees or other specific degrees.

[0135] Referring to Figure 14 In some embodiments, in order to ensure the balanced posture of the driving member 210, an extension limiting part 213 can be arranged at the end of the driving member 210, which abuts against the base 600 to avoid unilateral tilting. In other embodiments, a self-lubricating material layer can also be arranged on the extension limiting part 213 to reduce the friction coefficient.

[0136] The structure of the clutch device 400 will be described in detail below.

[0137] Referring to Figure 2 , Figure 3 , Figure 4 and Figure 5 The clutch device 400 provided by the embodiments of the present application is specifically provided with a first transmission assembly 410 and a second transmission assembly 420 which can be connected and separated, for respectively corresponding to the upstream structure and the downstream structure, to realize the stable and reliable connection and separation of the upstream structure and the downstream structure. In the embodiments, the connection and disconnection between the upstream driving mechanism 100 and the downstream rotating door mechanism 200 and the top door mechanism 300 in the switch door device is realized.

[0138] In order to realize the switching of the connection and separation state of the first transmission assembly 410 and the second transmission assembly 420, the clutch device 400 is further provided with a clutch pushing assembly 430 for pushing the first transmission assembly 410 and the second transmission assembly 420 to approach each other for connection or to move away from each other for separation. The first transmission assembly 410 and the second transmission assembly 420 can be respectively provided with matching engagement structures to realize the stable connection and convenient separation of the first transmission assembly 410 and the second transmission assembly 420.

[0139] In some embodiments, the clutching and pushing assembly 430 is provided with a pushing sleeve 431 which can be sleeved on the second transmission assembly 420. In assembly, the second transmission assembly 420 is embedded in the pushing sleeve 431, so as to stably fix the second transmission assembly 420, and the second transmission assembly 420 can be indirectly pushed to move by pushing the pushing sleeve 431, so as to avoid directly contacting the second transmission assembly 420 and affecting the operation state of the second transmission assembly 420; the structure stability of the second transmission assembly 420 can also be ensured by pushing the second transmission assembly 420 as a whole.

[0140] The clutching and pushing assembly 430 is also provided with a push rod 432 for pushing the pushing sleeve 431. The pushing sleeve 431 is moved in the first direction by the push rod 432, the second transmission assembly 420 is pushed as a whole to move close to the first transmission assembly 410, and the connection is established; or the pushing sleeve 431 is moved in the reverse direction of the first direction by operating the push rod 432, so that the second transmission assembly 420 moves away from the first transmission assembly 410, and the connection is disconnected.

[0141] Referring to Figure 2 and Figure 5 , in some embodiments, the second transmission assembly 420 is provided with a first transmission part 421 which can be connected in transmission with the first transmission assembly 410. The first transmission part 421 is provided with a connecting end 4211 for connecting the first transmission assembly 410, and is also provided with a pushing end 4212 for being embedded in the pushing sleeve 431, so as to form a stable fixing structure. Correspondingly, the connecting end 4211 can protrude from the pushing sleeve 431, so as to ensure smooth connection of the connecting end 4211 with the first transmission assembly 410.

[0142] Referring to Figure 6 , Figure 7 , Figure 8 and Figure 9 , in some embodiments, in order to improve the smoothness and convenience of connection and disconnection of the first transmission assembly 410 and the connecting end 4211, a clamping groove 411 which can accommodate the connecting end 4211 is formed on the first transmission assembly 410, and the form of the clamping groove 411 can be set to be the same as that of the connecting end 4211, so that the connection and transmission cooperation state of the connecting end 4211 and the first transmission assembly 410 can be established by one-way pushing operation and convenient clamping process, and the reliability of the transmission state can be ensured; at the same time, when the connection is disconnected, the first transmission assembly 410 and the connecting end 4211 can be quickly and smoothly separated by one-way pushing, and the influence on the state and structure stability of the first transmission part 421 and the first transmission assembly 410 can be reduced.

[0143] In some embodiments, based on the one-way approaching and separating engagement and disengagement operation, the inner teeth 413 can be arranged on the slot wall surface of the clamping groove 411, and correspondingly, the outer teeth 4215 can be arranged on the outer surface of the connecting end 4211, and the meshing and disengaging of the inner teeth 413 and the outer teeth 4215 can be achieved by the movement of the first transmission member 421.

[0144] In some embodiments, in order to adapt to the meshing requirement of the first transmission member 421 in the rotating state under certain working conditions, the gap between the two adjacent inner teeth 413 in the clamping groove 411 can be set to be greater than the width of the outer teeth 4215, so as to have a large enough adaptive space, facilitate the fitting of the outer teeth 4215 in place, and efficiently establish the meshing connection state.

[0145] In some embodiments, the gap between the two adjacent inner teeth 413 can be set to be more than twice the width of the outer teeth 4215.

[0146] In some embodiments, the gap between the two adjacent outer teeth 4215 on the outer surface of the connecting end 4211 can also be set to be greater than the width of the inner teeth 413, so as to have a large enough adaptive space, facilitate the fitting of the inner teeth 413 in place, and efficiently establish the meshing connection state.

[0147] In some embodiments, the gap between the two adjacent outer teeth 4215 can be set to be more than twice the width of the inner teeth 413.

[0148] In some embodiments, the first transmission assembly 410 can adopt the meshing transmission mode to establish the transmission relationship with other structures, and the first transmission assembly 410 can be arranged as a first transmission gear, and correspondingly, the clamping groove 411 can be arranged at the axial end of the first transmission gear. The first transmission member 421 moves along the axial direction of the first transmission gear to realize connection and separation.

[0149] In some embodiments, in order to adapt to the rotating working state of the first transmission gear, the clamping groove 411 can be arranged as a circular groove, the inner teeth 413 can be arranged at equal intervals on the wall surface of the circular groove, and the number of the teeth 413 is at least two; the number of the teeth 413 can be set to six or eight, and the specific number can be set according to the specification of the clamping groove 411. Correspondingly, the outer surface of the connecting end 4211 can also be arranged as a circle, and the outer teeth 4215 can be arranged at equal intervals on the wall surface of the circular groove, and the number of the teeth 413 is at least two; the number of the teeth 413 can also be set to six or eight; and the specific number can be the same as the number of the inner teeth 413.

[0150] The central shaft hole 412 of the first transmission gear is coaxially arranged with the circular clamping groove 411, so as to ensure the meshing efficiency and stability of the inner teeth 413. The extension cylinder 414 can be coaxially arranged at the aperture of the central shaft hole 412, so as to facilitate the stable fixation of the cooperatively embedded rotating shaft to the base 600.

[0151] In some embodiments, since the pushing end 4212 is embedded in the pushing sleeve 431, when the first transmission member 421 rotates, due to the excessively large contact surface, it is prone to cause unstable rotation posture and excessively large abrasion. A plurality of limiting bosses 4216 can be arranged on the outer circumferential surface to separate the inner surface of the pushing sleeve 431 and the outer circumferential surface of the pushing end 4212, leave a certain uniform gap, greatly reduce the contact area, reduce the degree of abrasion, and ensure the stability of the rotation posture of the first transmission member 421.

[0152] In some embodiments, the limiting boss 4216 is slidably abutted on the inner surface of the pushing sleeve 431, so as to further reduce the degree of abrasion. A self-lubricating material layer can be arranged on the limiting boss 4216 to reduce the friction coefficient, improve the wear resistance, and prolong the service life.

[0153] In some embodiments, a plurality of protrusions can be further arranged on the outer circumferential surface of the limiting boss 4216 to further reduce the contact surface.

[0154] In some embodiments, in order to stably push the first transmission member 421, a supporting flange 4213 can be arranged on the first transmission member 421 to be rested on the end surface of the pushing sleeve 431. The supporting flange 4213 can be arranged between the connecting end 4211 and the pushing end 4212. Generally, the transmission member 421 can be integrally formed, and it is not excluded that the transmission member 421 is separately formed and then assembled together.

[0155] In some embodiments, in order to ensure the structural strength, the first transmission member 421, the pushing sleeve 431 and the like need a certain thickness; after assembly, the overall height is generally high, and the required assembly space is also large. Therefore, a sunken table 4313 can be arranged on the end surface of the pushing sleeve 431 to accommodate the supporting flange 4213 and reduce the overall height. To some extent, the stability of the rotation axis of the first transmission member 421 can also be maintained.

[0156] In some embodiments, in order to meet the transmission connection requirements of the first transmission member 421 and the upstream structure, a connecting structure needs to be arranged on the first transmission member 421. Therefore, the second transmission assembly 420 further comprises a second transmission member 422 for driving the first transmission member 421 and being connected with the upstream structure to realize the transmission of the torque.

[0157] In some embodiments, considering that the first transmission member 421 needs to move in the first direction and also needs to meet the torque transmission, the first transmission member 421 can be sleeved on the second transmission member 422 and can rotate with the second transmission member 422 to realize the torque transmission; at the same time, the first transmission member 421 can move relative to the second transmission member 422 in the first direction.

[0158] In some embodiments, in order to realize the relative sliding of the first transmission member 421 and the second transmission member 422 and meet the following rotation, an axial through slot 4217 is formed on the inner surface 4214 of the first transmission member 421, and a clamping block 4222 is arranged on the outer surface 4221 of the second transmission member 422 and can be embedded in the axial through slot 4217, so that the first transmission member 421 can follow the rotation of the second transmission member 422. At the same time, the clamping block 4222 can also slide along the axial through slot 4217, so as to meet the sliding of the first transmission member 421 relative to the second transmission member 422 along the first direction.

[0159] In order to meet the torque transmission requirement, a transmission shaft 423 can be coaxially fixed in the second transmission member 422 for connecting the upstream driver 110 and driving the second transmission member 422.

[0160] In some embodiments, in order to meet the requirement that the transmission shaft 423 is fixed in the second transmission member 422, a transmission shaft hole 4223 can be formed on the second transmission member 422, and a first limiting surface 4224 is arranged in the transmission shaft hole 4223, and a second limiting surface 4231 is arranged on the outer circumferential surface of the transmission shaft 423, when the transmission shaft 423 is embedded in the transmission shaft hole 4223, the second limiting surface 4231 abuts against the first limiting surface 4224, so as to limit the rotation of the transmission shaft 423 relative to the second transmission member 422.

[0161] In some embodiments, in order to meet the process requirement and simplify the molding process, the transmission shaft 423 can be arranged as a cylindrical member, and a tangential plane is arranged on the outer circumferential surface of the cylindrical member to form the second limiting surface 4231. Correspondingly, the transmission shaft hole 4223 is arranged in a corresponding form.

[0162] In some embodiments, the first transmission assembly 410 and the second transmission member 422 are coaxially arranged on the transmission shaft 423, so that the second transmission assembly 420 can be stably moved along the axial direction of the transmission shaft 423 towards or away from the first transmission assembly 410, and the stability of the connection and separation of the first transmission assembly 410 and the second transmission assembly 420 is ensured.

[0163] In some embodiments, the moving direction of the pushing sleeve 431 is along the first direction, and the pushing direction of the push rod 432 can be along the first direction.

[0164] In some embodiments, due to the small overall thickness space and the relatively small thickness direction forming, the direct pushing along the first direction requires the specification of the pushing structure to be very small, which undoubtedly greatly increases the molding and assembly difficulty. Therefore, a variable direction pushing structure can be provided; a first pushing surface 4311 in a non-parallel state with the first direction can be provided on the pushing sleeve 431, so that the pushing operation along the pushing direction can be realized by pushing the first pushing surface 4311, and the pushing sleeve 431 is pushed to the first transmission assembly 410 by pushing the first pushing surface 4311 with the push rod 432.

[0165] In some embodiments, in order to optimize the efficiency of the pushing operation, the included angle between the first pushing surface 4311 and the first direction can be set in the range of 30 degrees to 60 degrees, such as 30 degrees, 45 degrees or 60 degrees, etc.

[0166] In some embodiments, the included angle between the pushing direction of the push rod 432 and the first direction can be controlled at 90 degrees, so as to minimize the arrangement space required for the matching arrangement of the push rod 432 and the second transmission assembly 420, and reduce the overall volume of the device.

[0167] In some embodiments, in order to improve the stability of the variable direction pushing, a second pushing surface 4321 in contact with the first pushing surface 4311 can be provided on the push rod 432, so as to improve the stress uniformity of the first pushing surface 4311 by means of face-to-face contact pushing and to ensure the stability of the moving posture of the pushing sleeve 431.

[0168] In some embodiments, in order to balance the stress of the pushing sleeve 431, the number of first pushing surfaces 4311 can be set to two, and the corresponding push rod 432 is also provided with two push arms 4323 corresponding to the two first pushing surfaces 4311; so as to ensure the stress uniformity of the pushing sleeve 431 by means of two-point force. And the two push arms 4323 can be connected to the same connecting part 4324 to realize synchronous action and ensure the consistency of the force, so as to ensure the stress uniformity of the pushing sleeve 431. Correspondingly, the second pushing surface 4321 is provided on each of the two push arms 4323.

[0169] In some embodiments, the two first pushing surfaces 4311 can be arranged on the opposite sides of the pushing sleeve 431, and the two push arms 4323 are arranged side by side, and the second pushing surface 4321 is arranged on the end of the push arm 4323 away from the connecting part 4324, so that the pushing operation can be realized by pushing the connecting part 4324.

[0170] In some embodiments, the number of first pushing surfaces 4311, second pushing surfaces 4321 and push arms 4323 can be set to more than two according to the specification of the pushing sleeve 431.

[0171] In some embodiments, in order to limit the rotation of the pushing sleeve 431, a first pushing groove 4312 can be formed on the pushing sleeve 431, and the pushing rod 432 is embedded into the pushing groove 4312 to connect the pushing rod 432 and the pushing sleeve 432 into one body, limit the circumferential relative rotation, and ensure the reliability of the pushing operation.

[0172] In some embodiments, the first pushing groove 4312 can be provided as two, the pushing rod 432 can be provided as two parallel pushing arms 4323 connected by a connecting portion 4324. The two first pushing grooves 4312 are arranged on the opposite sides of the pushing sleeve 431, thereby stably limiting the two points and ensuring the stress stability of the pushing sleeve 431. Correspondingly, the first pushing faces 4311 are arranged on the groove walls of the two first pushing grooves 4312, respectively.

[0173] In some embodiments, the second pushing faces 4321 can be arranged on the ends of the two pushing arms 4323 away from the connecting portion 4324, respectively, and the two second pushing faces 4321 are in contact with the two first pushing faces 4311, respectively.

[0174] In order to limit the radial deviation of the pushing sleeve 431, the limiting baffle plates 4322 can be arranged on the two pushing arms 4323, respectively, and specifically arranged on the side of the pushing arm 4323 away from the other pushing arm, so that the two limiting baffle plates 4322 are arranged on the opposite sides of the pushing sleeve.

[0175] In order to implement the pushing operation of the pushing rod 432, the linear driver 433 can be connected to the pushing rod 432, and the pushing rod 432 is pushed in the second direction or reset, so that the pushing sleeve 431 is moved in the second direction by the linear driver 433, the first transmission assembly 410 and the second transmission assembly 420 are connected, and the torque transmission structure of the door opening and closing device is established. When the linear driver 433 is reset, the pushing rod 432 releases the pushing sleeve 431, disconnects the connection between the first transmission assembly 410 and the second transmission assembly 420, and disconnects the torque transmission structure of the door opening and closing device.

[0176] In some embodiments, the linear driver 433 can be an electromagnetic push rod, a ball screw, or the like linear moving assembly.

[0177] In some embodiments, the driver 110 is provided as a speed reduction motor, or a motor configured with a speed reduction gear box, so as to be able to reasonably control the output torque and the rotation speed.

[0178] When the clutch control is performed, the linear driver 433 is actuated to move the push rod 432 towards the push sleeve 431, the second push surface 4321 at the head end of the push rod 432 pushes the first push surface 4311, the push sleeve 431 is moved upwardly, the push sleeve 431 moves towards the first transmission assembly 410, the first transmission member 421 of the second transmission assembly 420 moves towards the first transmission assembly 410, until the connecting end 4211 of the first transmission member 421 is embedded in the clamping groove 411 of the first transmission member 410, a circumferential transmission connection relationship is established, at this time, the linear driver 433 is kept at the current position, the push rod 432 supports the push sleeve 431 at the bottom, so that the transmission connection state is maintained, the driver 110 is rotated to drive the second transmission member 422 to rotate, and then drive the first transmission member 421, the first transmission assembly 410 and the linkage gear 120 to rotate, so as to realize the door opening and closing driving. When it is necessary to disconnect, the linear driver 433 is reset, the push sleeve 431 naturally falls under the action of gravity, the connecting end 4211 is gradually separated from the clamping groove 411, until the connection between the first transmission member 421 and the first transmission assembly 410 is disconnected, so as to disconnect the connection between the linkage gear 120 and the driver 110. In this process, the first transmission member 421 can slide axially relative to the second transmission member 422 to change the up-down position, and the circumferential transmission is realized through the clamping and embedding action of the clamping block 4222 and the axial through slot 4217 in the two. It is worth noting that the action time of the linear driver 433 is not necessarily earlier than the action time of the driver 110, that is, there is no certain delay sequence between the two.

[0179] The door rotating mechanism 200 and the door pushing mechanism 300 will be introduced respectively.

[0180] Referring to Figure 10 In some embodiments, a hinge seat 230 can be arranged on the door body 920 and hinged with the first end 221 of the door rotating member 220. In order to ensure the hinge reliability and force uniformity, the hinge seat 230 can be arranged as a U-shaped double-arm hinge seat, the first end 221 of the door rotating member is embedded in the hinge seat and fixed by a hinge shaft.

[0181] In some embodiments, the driving member 210 and the door rotating member 220 can be arranged in a plate shape, so that the installation height can be greatly reduced in the superimposed state.

[0182] Referring to Figure 14In some embodiments, the pivoting portions of the driving member 210 and the door member 220 can be provided in a reduced thickness form, so that the overall thickness in the pivoting superimposed state is reduced, thereby reducing the assembly height. The pivoting shaft 214 can be rotatably arranged on the lower plate-shaped member in the driving member 210 and the door member 220, and the upper plate-shaped member can be carried, so as to form a stable and reliable pivoting structure. In other embodiments, the end of one of the driving member 210 and the door member 220 can be provided in a U-shaped pivoting seat, and the end of the other is embedded in the U-shaped pivoting seat and fixed by the pivoting shaft 214.

[0183] In some embodiments, the driving member 210 and the door member 220 can be provided in a rod shape, so as to have a small size and high strength.

[0184] In some embodiments, the linkage gear 120 is an element for directly driving the driving member 210 and the door mechanism 300, and the driving mode thereof should simultaneously satisfy the action modes of the deflectable driving member 210 and the door mechanism 300.

[0185] In some embodiments, the door mechanism 300 is an execution mechanism for preliminarily pushing the door body 920 to a preset angle, and can realize the door opening operation by the step-by-step force accumulation under the driving of the driving mechanism 100. The structure of the door mechanism 300 will be specifically described below.

[0186] Referring to Figure 1 and Figure 12 In some embodiments, the door mechanism 300 includes a linkage member 310 and a door member 320. One end of the linkage member 310 is connected to the driving mechanism 100 for obtaining driving force, and the linkage member 310 can be actuated under the driving of the driving mechanism 100. The other end of the door member 320 is used for pushing the door body 920 to rotate, and the door member 320 is connected to the linkage member 310, so as to implement the door pushing operation and reset under the driving of the linkage member 310.

[0187] In some embodiments, one end of the linkage member 310 is rotatably arranged on the base 600, so as to be able to deflect around a rotating shaft under the driving of the driving mechanism 100. The door member 320 is connected to the linkage member 310, so as to be able to move along an arc-shaped track with the linkage member 310 and continuously push the door body 920 after abutting against the door body 920. The deflection structure of the linkage member 310 can ensure the pushing effect and reduce the front pressure on the door mechanism 300 to a certain extent, so as to ensure the structural stability and service life and improve the reliability of the door pushing operation.

[0188] In some embodiments, in order to further improve the efficiency of the top door operation, the top door piece 320 can be rotatably connected to the linkage piece 310, so that the top door piece 320 can be deflected relative to the linkage piece 310, adjust the posture of the top door piece 320, and adaptively adjust the pointing direction of the top door piece 320 according to the installation working condition, so as to be opposite to the door body 920 and ensure high-efficiency jacking. On the other hand, the top door mechanism 300 can adapt to the needs of different installation working conditions, flexibly adjust the cooperation state of the linkage piece 310 and the top door piece 320, and ensure high-efficiency jacking performance.

[0189] In some embodiments, the top door piece 320 can be rotatably connected to the middle part of the linkage piece 310, leaving enough deflection space for the top door piece 320 to avoid interference with other structures.

[0190] In order to ensure high top door efficiency, the jacking direction of the top door piece 320 can be set to be approximately perpendicular to the direction of the closed door body 920. Since the top door piece 320 rotates with the linkage piece 310, the jacking direction will also be deflected to a certain extent. In order to realize that the top door piece 320 stably applies jacking force as perpendicular to the door body 920 as possible, a waist-shaped hole 322 can be formed on the top door piece 320, a pin shaft 360 can be arranged on the linkage piece 310, and the pin shaft 360 is movably embedded in the waist-shaped hole 322 to realize the deflection of the top door piece 320 relative to the linkage piece 310. At the same time, the length direction space of the waist-shaped hole 322 can also be used to leave sliding space for the pin shaft 360, so that the top door piece 320 can slide along the length direction of the waist-shaped hole 322 without moving with the linkage piece 310, thereby maintaining the stability of the jacking direction of the top door piece 320. The length of the waist-shaped hole 322 can be designed according to the size of the top door stroke, for example, the longer the top door stroke, the longer the length of the waist-shaped hole 322.

[0191] In some embodiments, in order to meet the requirements of larger jacking force and jacking stroke with smaller opening specifications, the length direction of the waist-shaped hole 322 can be arranged perpendicular to the jacking direction of the top door piece 320. In other embodiments, the length direction of the waist-shaped hole 322 can also not be strictly arranged perpendicular to the jacking direction of the top door piece 320, but can have a certain angle, as long as the moving stroke of the pin shaft 360 has a component perpendicular to the jacking direction of the top door piece 320, so as to ensure the stability of the axial jacking posture of the top door piece 320. For example, the angle can be set to 30 degrees, 45 degrees, or 60 degrees.

[0192] In some embodiments, in order to ensure the force balance of the top door piece 320, the linkage piece 310 can be arranged below the top door piece 320 to support the top door piece 320 to a certain extent, so that the pin shaft 360 is stably embedded in the waist-shaped hole 322 in its axial direction without the risk of disengagement, thereby ensuring the stability of the pivoting function and relative sliding function of the waist-shaped hole 322 and the pin shaft 360.

[0193] In some embodiments, the waist-shaped hole 322 can be arranged on the linkage 310, and the pin shaft 360 can be arranged on the top door piece 320. In order to ensure the stability of the pivoting function and the relative sliding function, the linkage 310 can also be arranged above the top door piece 320, without limitation.

[0194] In some embodiments, in order to reduce the overall installation height, reduce the size of the device, reduce the installation space requirement and the material cost, and ensure the structural strength of the linkage 310, a thinned groove 312 can be arranged on the linkage 310, thereby reducing the superimposed thickness of the linkage 310 and the top door piece 320. The width specification of the thinned groove 312 can be arranged to be slightly larger than the area width of the deflection of the top door piece 320 in the waist-shaped hole 322, so as to avoid that the sidewall of the thinned groove 312 blocks the relative deflection of the linkage 310 and the top door piece 320.

[0195] Referring to Figure 12 and Figure 19 In some embodiments, under the influence of the friction force between the pin shaft 360 and the waist-shaped hole 322, during the deflection of the linkage 310, the top door piece 320 still has a moving trend along the vertical direction of the pushing direction. Therefore, a guide groove 632 can be arranged on the base 600, and the top door piece 320 can be slidingly arranged in the guide groove 632 along the set top door direction, so as to limit the displacement of the top door piece 320 along the vertical direction of the pushing direction and ensure the stability of the top door operation. In order to strengthen the guiding and limiting effect, the width of the guide groove 632 along the vertical direction of the pushing direction can be arranged to be slightly larger than the width of the top door piece 320, and only a certain sliding gap is reserved.

[0196] In some embodiments, in order to ensure the smooth sliding of the top door piece 320, a layer of self-lubricating material can be arranged on the groove surface of the guide groove 632, or a layer of self-lubricating material can be arranged on the part of the top door piece 320 corresponding to the guide groove 632, or a layer of self-lubricating material is arranged on both the groove surface of the guide groove 632 and the part of the top door piece 320 corresponding to the guide groove 632, or the guide groove 632 and the part of the top door piece 320 corresponding to the guide groove 632 are directly formed by self-lubricating material, so as to further reduce the frictional influence.

[0197] Referring to Figure 12 In some embodiments, considering the influence of the assembly precision and the matching gap, the pushing seat 330 can be hinged on the end of the top door piece 320 away from the linkage 310, so that when the top door piece 320 abuts against the door body 920, the pushing seat 330 will abut against the door body 920 first and can be adaptively deflected, so that the pushing seat 330 and the door body 920 realize face-to-face contact, the size and the posture of the contact surface are ensured to be stable, the pushing direction and the size of the top door are ensured to be stable, and the risk that the local contact pushing causes the contact pressure to be too large to damage the door body or the top door piece 320 is reduced.

[0198] In some embodiments, in order to improve the adaptability in various directions, the pushing seat 330 and the top door piece 320 can be connected by a universal hinge structure.

[0199] In some embodiments, in order to reduce the contact vibration between the pushing seat 330 and the door body 920 and the wear of the pushing seat 330, a damping pad 340 can be arranged on the pushing seat 330. The damping pad 340 can be made of a material with low friction coefficient.

[0200] In some embodiments, the second end of the linkage 310 is provided with a first tooth portion 313 engaged with the driving mechanism 100, so as to drive the linkage 310 to rotate by gear engagement transmission, thereby achieving accurate control of the rotation amplitude of the linkage 310 and improving the control accuracy of the pushing stroke of the top door mechanism 300.

[0201] In some embodiments, considering that in the top door operation, the opening degree of the top door is usually set based on the angle required to break through the adsorption force and the rotation door resistance between the door body 920 and the box body 910, the deflection angle of the door body 920 relative to the box body 910 can be set to about 3 degrees, and the corresponding pushing stroke is also relatively small. The deflection angle of the linkage 310 can also be set to a small level. Generally, the preset angle of deflection can be used to correspondingly calibrate the arrangement position of the linkage 310 on the base 600, so as to form a preset angle or a preset position of the linkage 310 on the base 600.

[0202] Referring to Figure 12 In some embodiments, in order to ensure the control accuracy of the rotation angle of the linkage 310, an elastic limiting piece 370 can be connected between the base 600 and the linkage 310, so as to always pull the linkage 310 to the preset position. This can ensure the control accuracy, and also ensure the alignment accuracy and stability of the engagement connection with the driving mechanism 100.

[0203] In some embodiments, the elastic limiting piece 370 can be a tension spring, and the two ends thereof are respectively connected with the linkage 310 and the base 600. The stable elastic tension force is applied by elastic elongation deformation. The tension spring can adapt to the deflection process of the linkage 310 based on the self-adaptive deformation, and ensure the stability of the elastic tension effect. In other embodiments, the elastic limiting piece 370 can also be a spring sheet or other forms of elastic piece.

[0204] Referring to Figure 12 , Figure 14 and Figure 19 In some embodiments, a third fixed seat 314 can be arranged on the linkage 310, and a fourth fixed seat 635 can be arranged on the base 600, which correspond to the two ends of the tension spring respectively, so as to improve the stability of the tension spring under the action of deflection and deformation.

[0205] In some embodiments, the first stopper 630 can also be arranged on the base 600 and located at the end points of the preset deflection stroke of the linkage 310, and abut against the first stopper 630 when the top door mechanism 300 is deflected to the preset angle relative to the base 600, so as to limit the excessive deflection of the linkage 310 and limit the overall further deflection of the top door mechanism 300; at the same time, the stable meshing connection between the first tooth portion 313 and the driving mechanism 100 can also be ensured.

[0206] Referring to Figure 19 In some embodiments, the linkage 310 is deflected and reset under the driving of the driving mechanism 100, and thus generates two opposite deflection directions relative to the base 600, that is, two deflection limit positions. In order to ensure the position control accuracy of the linkage 310, the first stop surface 633 and the second stop surface 634 can be arranged on the first stopper 630 and correspondingly arranged at the two end points of the preset deflection stroke of the linkage 310, so as to realize the bidirectional limiting. The first stop surface 633 and the second stop surface 634 can be arranged as a type surface matched with the outer surface of the linkage 310, so as to improve the reliability of the contact limiting.

[0207] In some embodiments, the first stopper 630 can be an independent structural member mounted on the base 600, and the height thereof is slightly higher than the arrangement height of the linkage 310, so as to realize the stop function. In other embodiments, the first stopper 630 can also be directly formed on the base 600, and the base 600 is formed with an integrated structure having a stop type surface or a stop portion.

[0208] In some embodiments, the first stopper 630 can be arranged in cooperation with the elastic limiting member 370, that is, the mounting position of the elastic limiting member 370 can be arranged to elastically pull or press the linkage 310 towards the first stopper 630.

[0209] Referring to Figure 12 and Figure 19 In some embodiments, the elastic member accommodating groove 631 can be formed on the first stopper 630, and the first end of the elastic limiting member 370 is connected in the elastic accommodating groove 631. The elastic limiting member 370 can be assembled on the base 600, and the groove structure can also protect the elastic limiting member 370, so as to avoid the scratching and collision affecting the deformation state, thereby ensuring the in-place control reliability and accuracy of the linkage 310.

[0210] Referring to Figure 12 , Figure 14 and Figure 19In some embodiments, the fourth fixing seat 314 can be arranged on the linkage 310 between the first tooth portion 313 and the pin shaft 360, that is, between the force receiving point and the force applying point of the linkage 310, so as to improve the elastic limiting effect and the performance of resisting vibration and external interference of the linkage 310 to some extent.

[0211] In some embodiments, in order to adapt to the deflection action of the linkage 310, the second end of the elastic limiting piece 370 also deflects to some extent, so that the elastic limiting piece 370 deflects as a whole with the first end as the center. In order to avoid the elastic accommodating groove 631 being scraped and abutted to affect its deformation state, the groove body of the elastic accommodating groove 631 can be arranged in a fan shape to leave enough deflection space.

[0212] In some embodiments, the linkage 310 can be arranged as a plate, and the plate thickness direction is perpendicular to the deflection direction, so as to ensure the structural strength under the operating condition of the top door, and also reduce the overall assembly thickness of the linkage 310 and the installation height requirement. The top door piece 320 can also be arranged as a plate, and the plate thickness direction is perpendicular to the deflection and pushing directions, so as to reduce the overall assembly height. In other embodiments, the linkage 310 and the top door piece 320 can also be arranged as rods.

[0213] Referring to Figure 14 and Figure 15 In some embodiments, the first tooth portion 313 can be arranged at the first end of the plate body of the linkage 310, the linkage pivot hole 311 is arranged at the second end of the plate body of the linkage 310, and the linkage pivot shaft 350 is arranged on the base 600 and rotatably embedded in the linkage pivot hole 311, so that the linkage 310 can rotate relative to the base 600, while meeting the linkage function, the overall volume is reduced. In other embodiments, the waist-shaped hole 322 can also be arranged at the first end of the plate body of the top door piece 320, while meeting the function requirement of the top door, the length and width are reduced, and the overall volume is reduced.

[0214] In some embodiments, in order to improve the structural strength of the linkage 310 and the top door piece 320, a reinforcing rib can be arranged on the plate body thereof.

[0215] When assembled on an electrical appliance having a cabinet 910 and a door body 920 hinged on the cabinet 910, the base 600 can be fixed on the cabinet 910, and the top door piece 320 can be oriented with the top door direction facing the door body 920. When performing the door opening operation, the driving mechanism 100 drives the linkage piece 310 to deflect forward relative to the base 600, drives the top door piece 320 to slide along the guide slot 632, until the top door piece 320 contacts the door body 920 and the pushing force gradually increases, until the adsorption force and other rotation resistance between the door body 920 and the cabinet 910 are broken, and the door body 920 is pushed open. When performing the door closing operation, the driving mechanism 100 drives the linkage piece 310 to deflect reversely relative to the base 600, drives the top door piece 320 to slide reversely along the guide slot 632, until the top door piece 320 is reset.

[0216] Referring to Figure 13 In some embodiments, the top door mechanism 300 can also be provided as an integrated top door piece 380, and the top door piece 380 can be rotatably provided on the base 600 through a pivot shaft similar to the linkage pivot shaft 350. The top door piece 380 can be functionally divided into regions, and a fourth tooth portion 381 can be provided for engaging and connecting the driving mechanism 100, and when the driving mechanism 100 is started, the top door piece 380 is driven to rotate. A top door portion 382 can be provided on the top door piece 380, and when the driving mechanism 100 is driven to rotate, the top door portion 382 pushes the door body 920 until the door body 920 is pushed open to a set opening degree.

[0217] In some embodiments, the top door piece 380 is a fan-shaped structure, and the top door portion 382 is a side end corner of the fan-shaped structure. When the top door piece 380 rotates, the top door portion 382 pushes the door body 920 along an arc-shaped trajectory. In other embodiments, the top door piece 380 can be provided as a cam structure, and the first tooth portion 381 and the top door portion 382 can be provided on the rim of the cam. The cam rotates relative to the base 600, and is driven by the driving mechanism 100 to rotate, smoothly pushing the door body 920 along an arc-shaped trajectory, and reducing the degree of impact and vibration.

[0218] In some embodiments, in order to improve the structural strength, a reinforcing rib 383 can be provided on the fan-shaped structure.

[0219] Referring to Figure 20 , Figure 21 and Figure 22 In some embodiments, the base 600 is provided by two separate housings that are assembled by being buckled together, and corresponding fasteners such as fastening screws can be used for locking. Windows can be provided in regions corresponding to the top door piece 320 or the top door piece 380, the rotating door piece 220, and the driving piece 210, so that the top door piece 320 or the top door piece 380, the rotating door piece 220, and the driving piece 210 can be extended, ensuring smooth execution of the door opening and closing operations, and also ensuring orderly storage and protection of the internal functional structures.

[0220] In some embodiments, a rotating shaft reinforcing structure can be provided corresponding to the positions of the coaxial rotating shaft 211 and the linkage pivot shaft 350 to ensure the reliability of the pivot structure.

[0221] In some embodiments, a coaxial rotating shaft seat 650 is provided on the base 600 to rotate and fix the coaxial rotating shaft 211, improve the stability of the structure, and fully improve the impact resistance to ensure that the rotating door mechanism 200 and the linkage gear 20 are stably and reliably coaxially pivoted on the base 600. A driving motor fixing groove 610 is provided on the base 600 for fixing the driver 110.

[0222] Referring to Figure 26 and Figure 27 , the present embodiment also provides a refrigerator comprising a cabinet 910 and a door body 920, and the door body 910 is rotatably arranged on the cabinet 910. A door opening and closing device is connected between the cabinet 910 and the door body 920 for pushing or the door body 920 to deflect the door body 920 relative to the cabinet 910 to realize the door opening and closing operation.

[0223] In some embodiments, the door opening and closing device is fixed on the cabinet 910 by the base 600, and the door opening and closing device points or abuts against the door body 920 by the door opening and closing member 320 or the door opening and closing profile 380, and the rotating door member 220 is hinged to the door body 920 by the hinge seat 230. In other embodiments, the base can be an integrated profile structure formed on the top of the cabinet 910 to assume the function of the base. In still other embodiments, the base 600 can also be arranged on the door body 920, and the door opening and closing member 320 or the door opening and closing profile 380 points or abuts against the cabinet 910, and the rotating door member 220 is hinged to the cabinet 910 by the hinge seat 230. In some embodiments, the refrigerator is provided with multiple door bodies 920, and an independent door opening and closing device can be provided for each door body 920 to realize the automatic door opening and closing function of the multi-door refrigerator.

[0224] Referring to Figure 28 and Figure 29 , when the door opening operation is performed, the linkage gear 120 is positively rotated to directly push the door body 920 by the door opening mechanism 300. When the linkage gear 120 rotates by a certain angle, the continuous pushing force reaches a critical value that breaks through the door opening resistance, and the door body is pushed open and maintained at a certain angle. When the linkage gear 120 continues to be positively rotated, the first tooth portion 313 is disconnected from the second tooth portion 1221, and the linkage lever 310 is pulled tight on the first stopper 630 under the action of the elastic limiting member 370. During the process, the driving member 210 of the rotating door mechanism 200 moves from the first pushing portion 1231 to the second pushing portion 1232 until the driving member 210 abuts against the second pushing portion 1232, and then the linkage gear continues to be positively rotated, the door body 920 is pushed until it reaches the set limit position, and the door opening and rotating operation is realized.

[0225] Referring to Figure 23 、 Figure 24 、 Figure 25 and Figure 30 , when performing the closing operation, the linkage gear 120 reverses, and when the first pushing part 1231 abuts against the driving part 210, it continues to reverse and pushes the driving part 210 to reverse, pulls the rotating door part 320 and the door body 920 to rotate towards the cabinet 910, until the cabinet is closed, to realize the closing operation; in the process, the linkage gear 120 rotates to a certain angle position, and is connected by the meshing of the second tooth part 1221 and the first tooth part 313, pushes the linkage part 310 to reverse, until it reaches the initial position.

[0226] The embodiment provides a door opening and closing control method, which is used for controlling the door opening and closing operation of an electrical appliance device provided with a door opening and closing device. The electrical appliance device has a cabinet 910 and a door body 920, and the door body 910 is rotatably arranged on the cabinet 910. The door opening and closing device is arranged on the cabinet 910, pushes and rotates the door body 920 to realize the opening operation, or rotates the door body 920 to realize the closing operation. The door opening and closing device is a door pushing mechanism 300 and a door rotating mechanism 200 arranged on the base 600 and rotatable relative to the base 600. The door pushing mechanism 300 and the door rotating mechanism 200 are driven by the linkage gear 120 of the driving mechanism 100 to realize the mechanical door pushing and rotating operation, and perform the door opening and closing operation.

[0227] Referring to Figure 11 In some embodiments, in order to ensure the door rotating efficiency and the stability of the structure of the door rotating mechanism 200, reduce the influence of the relative deflection state and the extension length of the driving part 210 and the door rotating part 220 on the door opening degree and the door rotating speed, the rotating center point B of the door body 920 of the electrical appliance device and the arrangement position of the base 600 are combined to plan and arrange the door rotating mechanism 200 and the hinge point C of the door body 920. Specifically, the hinge point C of one end of the door rotating part 220 and the door body 920, the hinge point A of one end of the driving part 210 and the door rotating part 220, and the hinge point D of the other end of the driving part 210 rotatably arranged on the base 600 are distributed and designed, that is, the hinge point A and the rotating center B are respectively located on the two sides of the line connecting the hinge point C and the hinge point D, to form a convex quadrilateral, avoid the extreme state that the door rotating part 220 is not forced due to the deflection of more than 180 degrees of the driving part 210 and the door rotating part 220 in the rotating process, and the problem that the door body 920 cannot be rotated, and also limit the opening degree range of the door body 920.

[0228] In some embodiments, in order to maximize the openable angle of the door body 920 and the box body 910 structure itself without being excessively limited by the rotating door mechanism 200, the position of the hinge point C of the door body 920, the position of the hinge point D of the base 600, and the length of the two hinge points of the driving member 210 and the rotating door member 220 are arranged according to the principle that the four sides enclosed in sequence are a parallelogram. In this state, excluding the reasons of the structure width, thickness, and rotating shaft hinge, etc., the opening degree of the door body 920 can approach 180 degrees. Of course, the larger the door body 920 of the refrigerator is not necessarily better, but is determined according to the installation working condition, use demand, convenience, and other factors. In other embodiments, through the above arrangement, the door body opening degree can be stably and reliably realized at 130 degrees.

[0229] Referring to Figure 2 , Figure 3 , Figure 4 and Figure 5 , in some embodiments, a clutch function structure is arranged between the driver 110 and the linkage gear 120, so as to control the driving force transmission between the linkage gear 120 and the driver 110, and realize the interruption and start-stop control of the door opening and closing operation. The clutch function structure is provided with a first transmission assembly 410 and a second transmission assembly 420 matched with each other in the separation state and the connection state, and a clutch pushing assembly 430 for establishing the connection relationship and the interrupted connection relationship of the first transmission assembly 410 and the second transmission assembly 420. Among them, the second transmission assembly 420 is connected with the driver 110 to obtain the driving force; the first transmission assembly 410 is connected with the linkage gear 120 to transmit the driving force to the driving linkage 120. By pushing the second transmission assembly 420 and the first transmission assembly 410 to approach each other through the clutch pushing assembly 430, the matched connection state is established, so that the driving force of the driver 110 is transmitted to the linkage gear 120 through the second transmission assembly 420 and the first transmission assembly 410 in sequence, and the linkage gear 120 is driven to rotate; the second transmission assembly 420 and the first transmission assembly 410 can also be pushed away from each other through the clutch pushing assembly 430 to remove the matched connection state, so as to cut off the path of the driving force obtained by the linkage gear 120, and stop the rotation of the linkage gear. Therefore, the action of the clutch pushing assembly 430 can be controlled by the stop rotation instruction to control the linkage gear 120, so as to meet the use demand of some emergency working conditions or accidental stop of the door body 920.

[0230] In some embodiments, the in-place information of the refrigerator door body 920 can be obtained by the angle acquisition unit 500 configured to detect the rotation angle value of the linkage gear 120, and by the pre-established association between the rotation angle value of the linkage gear 120 and the in-place information of the door body 920, so that the position of the door body 920 can be indirectly determined by detecting the real-time angle information, i.e., the rotation angle value, of the linkage gear 120, and the opening and closing control of the driving mechanism 100, i.e., the start and stop control of the driver 110, and the action of the clutch and pushing assembly 430 are implemented based on this, thereby controlling the connection and separation of the second transmission assembly 420 and the first transmission assembly 410. In other embodiments, the movement of the second transmission assembly 420 can be controlled by the clutch and pushing assembly 430 to achieve the clutch function, and the first transmission assembly 410 is arranged in a structure that is fixed relative to the base 600.

[0231] In some embodiments, the rotation angle information of the linkage gear 120 can also be monitored in real time, so as to feedback control the action of the clutch device 400, i.e., control the separation and connection between the first transmission assembly 410 and the second transmission assembly 420 by the clutch and pushing assembly 430, thereby achieving the control of the rotating door process.

[0232] In some embodiments, the rotation angle information of the linkage gear 120 is monitored in real time by the acquisition unit 500, and whether to perform the pushing action of the clutch and pushing assembly 430 is determined based on this, so as to control the separation and connection between the first transmission assembly 410 and the second transmission assembly 420.

[0233] In some embodiments, the angle information is set to represent the rotation angle value of the linkage gear 120, and the rotation angle value is compared with the preset angle value. If the rotation angle value of the linkage gear 120 is less than the preset angle value, the clutch and pushing assembly 430 does not act, and the connection state between the first transmission assembly and the second transmission assembly 420 is maintained; if the rotation angle value of the linkage gear 120 is greater than or equal to the preset angle value, the clutch and pushing assembly 430 acts to separate the first transmission assembly 410 and the second transmission assembly 420, and the connection state is cut off.

[0234] In some embodiments, the size of the preset angle value is set according to the rotation angle value corresponding to the preset position in the opening and closing process. The preset angle value can be the rotation angle value corresponding to the maximum opening degree, or the rotation angle value corresponding to any intermediate opening degree position. Thus, the connection between the first transmission assembly 410 and the second transmission assembly 420 can be cut off when the door is opened or closed to the in-place position.

[0235] In some embodiments, the angle information can be set as a vector angle value, which can correspond to the forward and reverse rotation of the linkage gear 120, and output a forward rotation angle value and a reverse rotation angle value. Correspondingly, the preset angle value is also set as a vector threshold value. When the forward rotation angle or the reverse rotation angle of the linkage gear 120 reaches the preset angle value in the corresponding direction, the clutch pushing assembly 430 separates the first transmission assembly 410 and the second transmission assembly 420. In other embodiments, the action of the driver 110 can also be stopped.

[0236] In some embodiments, the angle information can also be set as a rotation angle acceleration value of the linkage gear 120, and the action of the pushing assembly 430 is controlled based on the angle acceleration value to separate or maintain the connection state of the first transmission assembly 410 and the second transmission assembly 420.

[0237] In some embodiments, the action of the clutch pushing assembly 430 is controlled by comparing the size of the angular velocity value and the preset acceleration value.

[0238] In some embodiments, in order to avoid excessive impact on people or objects in the deflection area caused by the rotating door rotating too fast, causing the internal storage to vibrate and fall, and causing safety risks, when the angular acceleration is greater than or equal to the preset angular acceleration, the clutch pushing assembly 430 is driven to act, and the first transmission assembly 410 and the second transmission assembly 420 are separated. At this time, the corresponding angular acceleration value is the upper angular acceleration limit value.

[0239] In some embodiments, considering the case where the door body is pushed against a person or object, the self-rotating structure is stuck, or the door opening and closing mechanism fails, when the angular acceleration is too small, i.e. less than the lower limit of the angular acceleration, a protective operation can also be performed, i.e. by driving the clutch pushing assembly 430 to act, the first transmission assembly 410 and the second transmission assembly 420 are separated to avoid damage to the door opening and closing device and the self-rotating structure.

[0240] In some embodiments, the driver 110 is an electric motor. In other embodiments, a controller can also be configured to receive control instructions and control the action of the electric motor and the clutch pushing assembly 430.

[0241] In some embodiments, the door opening instruction, the door closing instruction, and the stop rotating instruction can be input through a active input device, by applying a set trigger signal through the operation of the active input device, the driving mechanism 100 of the door opening and closing device is controlled to perform the corresponding action, and then the door pushing mechanism 300 and the rotating door mechanism 200 are driven to act, and the door opening operation is performed. In other embodiments, the active input device can be set as a voice input terminal, an infrared sensing terminal, a touch terminal, etc. In other embodiments, it can also be a pressure sensor or other sensor element arranged on the door body 920 or the box body 910 to sense the operation pressure.

[0242] The application also provides a refrigerator using the control method, which is provided with a controller, and the door opening and closing device is connected to the controller and the door opening and closing control is implemented through the controller. Of course, the door opening and closing device can also be integrated in the controller system of the refrigerator.

[0243] In the present application, unless specifically defined and limited otherwise, the terms "connect", "fixed", and the like should be interpreted broadly, for example, "fixed" can be fixed connection, or detachable connection, or integrated; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0244] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0245] In addition, in the present application, the description such as "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features indicated or implying the number of technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection claimed in the present application.

[0246] In the description of the present application, unless specifically defined and limited otherwise, the "upper" or "lower" of the first feature to the second feature can include the direct contact of the first and second features, or can include the contact of the first and second features through another feature between them. Moreover, the "upper", "above" and "above" of the first feature to the second feature includes the first feature above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature includes the first feature below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0247] In the description of the application, reference to "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that a particular feature, structure, material, or characteristic being described is included in at least one embodiment or example of the application. The appearances of the phrase in various places in the specification are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples. Furthermore, the terminology "comprising" is used in the

[0248] Although preferred embodiments of the application have been described herein, those skilled in the art will readily devise many additional variations of these preferred embodiments that will fall within the scope of the present application. Accordingly, the appended claims are intended to encompass all such variations as falling within the scope of the application. It is also to be understood that the terminology used herein is for the purpose of describing the particular embodiments only and is not intended to be limiting. The scope of the application will be limited only by the appended claims.

[0249] Obviously, numerous modifications and variations of the present application are possible in light of the above teachings. It is therefore to be understood that within the scope of the appended claims and their equivalents, the application can be practiced otherwise than as specifically described.

Claims

1. A door opening and closing device, characterized in that: include: A driving structure, a top door mechanism, a rotating door mechanism and an angle acquisition unit, wherein the driving structure includes: Driver; a first transmission assembly; a second transmission assembly connected to the driver and detachably connected to the first transmission assembly; A clutch push assembly includes a push sleeve sleeved on the second transmission assembly and a push rod for pushing the push sleeve, wherein the push rod pushes the push sleeve to push the second transmission assembly to separate or connect with the first transmission assembly; A linkage gear connected to the first transmission assembly and simultaneously connected to the top door mechanism and the rotating door mechanism; Wherein, the angle acquisition unit is used to acquire the rotation angle of the linkage gear; The second transmission assembly includes a first transmission member, the first transmission member includes a connecting end detachably connected to the first transmission assembly and a pushing end embedded in the pushing sleeve; A plurality of spaced-apart limiting bosses are provided on the outer circumferential surface of the pushing end, and the limiting bosses slidably contact the inner surface of the pushing sleeve; The first transmission assembly is provided with a slot, and the connecting end is detachably engaged in the slot; Internal teeth are provided on the wall surface of the clamping groove, and external teeth that can mesh with the internal teeth are provided on the outer peripheral surface of the connecting end.

2. The door opening and closing device according to claim 1, wherein: The linkage gear also includes: A body rotatably disposed on the base; a first pushing portion, provided on the body, for pushing the revolving door mechanism to rotate when the body rotates forward, so as to open the door body; The second pushing portion is arranged on the main body and pushes the rotary door mechanism to rotate when the main body rotates in the opposite direction, so as to close the door body.

3. The door opening and closing device according to claim 2, characterized in that: The revolving door mechanism rotates at a first angle between the first pushing portion and the second pushing portion, and the body is coaxially rotatably arranged on the base with the revolving door mechanism.

4. The door opening and closing device according to claim 3, characterized in that: The door-lifting mechanism includes a first tooth portion, and the linkage gear also includes a third pushing portion provided with a second tooth portion meshing with the first tooth portion for transmission. When the main body rotates forward, the third pushing portion drives the door-lifting mechanism to push the door body.

5. The door opening and closing device according to claim 2, wherein: A rotation limiting groove is provided on the main body, and the main body and the rotating door mechanism are coaxially rotatably arranged on the base, and the rotating door mechanism can rotate in the rotation limiting groove, and the first pushing part and the second pushing part are the groove walls of the rotation limiting groove in the radial direction of the linkage gear.

6. The door opening and closing device according to any one of claims 1 to 5, characterized in that: The revolving door mechanism includes a driving member and a revolving door member, the first end of the revolving door member is rotatably set on the door body, the second end of the revolving door member is rotatably connected to the first end of the driving member, and the second end of the driving member is rotatably set on the base; the linkage gear can drive the transmission member to rotate to drive the revolving door member to rotate the door body.

7. The door opening and closing device according to any one of claims 1 to 5, characterized in that: The door-lift mechanism comprises: a linkage member, wherein a first end of the linkage member is rotatably disposed on the base, and a second end of the linkage member is connected to the linkage gear; a door-lifting member, wherein a first end of the door-lifting member is rotatably connected to the linkage member, and a second end of the door-lifting member is used for pushing up the door body; Wherein, the linkage gear drives the linkage member to rotate, thereby driving the door-pushing member to push up the door body.

8. The door opening and closing device according to claim 7, characterized in that: The top door mechanism also includes: The elastic limiting member is connected to the linkage member and the base respectively, and maintains the linkage member at a preset angle.

9. The door opening and closing device according to claim 7, wherein: A waist-shaped hole is provided on one of the top door component and the linkage component, and a pin is provided on the other component. The pin is rotatably arranged in the waist-shaped hole.

10. The door opening and closing device according to any one of claims 1 to 5, characterized in that: The door-pushing mechanism is rotatably arranged on the base, and includes: a first tooth portion meshing with the linkage gear and a door-pushing portion for pushing the door body. The linkage gear drives the door-pushing mechanism to rotate relative to the base through the first tooth portion, thereby driving the door-pushing portion to push the door body.

11. The door opening and closing device according to claim 10, wherein: The top door mechanism also includes: a limiting member, disposed on the base, wherein the door-lifting mechanism comes into conflict with the limiting member when the door-lifting mechanism rotates to a preset angle relative to the base; The tensioning member has two ends connected to the door lifting mechanism and the base respectively, so as to maintain the door lifting mechanism at the preset angle.

12. The door opening and closing device according to claim 10, wherein: The top door mechanism is in a cam shape, and the first tooth portion and the top door portion are located on a wheel rim of the cam.

13. The door opening and closing device according to any one of claims 1 to 5, characterized in that: The clutch pushing assembly includes a pushing sleeve sleeved on the second transmission assembly and a push rod for pushing the pushing sleeve. The pushing sleeve is pushed by the push rod to separate the first transmission assembly from the second transmission assembly.

14. The door opening and closing device according to claim 13, wherein: An axial through groove is provided on the inner surface of the first transmission member; the second transmission assembly further comprises: a second transmission member, wherein a clamping block is provided on an outer surface of the second transmission member, and when the first transmission member is sleeved on the second transmission member, the clamping block is axially slidably embedded in the axial through groove; The transmission shaft is connected to the driver, and the second transmission member and the first transmission assembly are both sleeved on the transmission shaft.

15. The door opening and closing device according to claim 13, wherein: The pushing sleeve pushes the second transmission assembly along a first direction, the pushing sleeve is provided with a first pushing surface, and the push rod is provided with a second pushing surface in contact with the first pushing surface, wherein the angle between the first direction and the first pushing surface is an acute angle.

16. The door opening and closing device according to claim 13, wherein: The pushing sleeve pushes the second transmission assembly along the first direction; The push sleeve is provided with two first push grooves, the two first push grooves are arranged on opposite sides of the push sleeve, and the groove walls of the two first push grooves are respectively provided with first push surfaces; The push rod includes two push arms arranged in parallel and a connecting portion connecting the two push arms. Second push surfaces are provided on the ends of the two push arms away from the connecting portion, and the two second push surfaces are in contact with the two first push surfaces respectively.

17. An electrical device, characterized in that: It comprises a box body, a door body rotatably arranged on the box body, and a door opening and closing device according to any one of claims 1 to 16, wherein the door opening and closing device is arranged between the box body and the door body.

18. The electrical device according to claim 17, wherein: The electrical appliance is one of a refrigerator, a disinfection cabinet and a dishwasher.

19. A door opening and closing control method, applied to the electrical equipment according to claim 17 or 18, characterized in that: include: Obtaining angle information collected by the angle collection unit, wherein the angle information represents an angle value of rotation of the linkage gear; According to the angle information, it is determined whether to control the clutch pushing assembly to push the second transmission assembly so that the first transmission assembly is separated from the second transmission assembly.

20. The door opening and closing control method according to claim 19, wherein: The step of determining whether to control the clutch pushing assembly to push the second transmission assembly according to the angle information includes: Determining whether the angle value represented by the angle information is greater than or equal to a preset angle value; If so, the clutch pushing assembly is controlled to push the second transmission assembly so that the first transmission assembly is separated from the second transmission assembly.

21. The door opening and closing control method according to claim 19, wherein: The step of determining whether to control the clutch pushing assembly to push the second transmission assembly according to the angle information includes: Obtaining an angular acceleration value of the linkage gear according to the angle information; According to the angular acceleration value, it is determined whether to control the clutch pushing assembly to push the second transmission assembly so that the first transmission assembly is separated from the second transmission assembly.

22. The door opening and closing control method according to claim 21, wherein: The step of determining whether to control the clutch pushing assembly to push the second transmission assembly according to the angular acceleration value includes: Determining whether the angular acceleration value is greater than or equal to a preset acceleration value; If so, the clutch pushing assembly is controlled to push the second transmission assembly so that the first transmission assembly is separated from the second transmission assembly.

Images