Electrical equipment

Abstract

The invention discloses electrical equipment. The electrical equipment comprises a door body, a main body and a top door mechanism arranged on the main body, the door ejecting mechanism comprises an ejecting part which is rotatably connected to the base, a plurality of ejecting parts are sequentially arranged on the ejecting part, and the distances from the plurality of ejecting parts to the rotating center of the ejecting part are sequentially increased, so that the door body is directly or indirectly ejected in sequence through the plurality of ejecting parts in the rotating process of the ejecting part; the driving device is connected with the pushing piece so as to push the pushing piece to rotate; and the clutch device is connected between the pushing piece and the driving device so as to cut off or establish the connection between the driving device and the pushing piece.

Description

Technical Field

[0001] The present application belongs to the technical field of electrical equipment, and in particular, relates to an electrical equipment. Background Art

[0002] With the improvement of living standards, electrical appliances such as refrigerators, dishwashers, and disinfection cabinets have penetrated into people's lives. In order to ensure the refrigeration performance of the refrigerator, a soft door seal with a magnetic strip is usually set between the door and the main body of the refrigerator to contact and seal with the main body and maintain a certain adsorption force to achieve stable and good surface contact sealing performance. However, due to the magnetic adsorption force and the negative pressure inside the main body, there is a certain resistance when opening the door. It usually takes 40 to 70N of force to open it, which is difficult and inconvenient to operate; especially for the elderly, children, patients and other groups, it is not only difficult to operate, but also has certain safety risks. Summary of the invention

[0003] The present application aims to at least to some extent solve the technical problems of inconvenient door opening operation, low efficiency and safety risks of electrical equipment. To this end, the present application provides an electrical equipment.

[0004] An embodiment of the present application provides an electrical device, including a door body, a main body, and a door-lifting mechanism disposed on the main body; the door-lifting mechanism includes:

[0005] A push-up member is rotatably connected to the base, and a plurality of push-up parts are sequentially arranged on the push-up member, and the distances between the plurality of push-up parts and the rotation center of the push-up member are sequentially increased, so that the door body can be directly or indirectly pushed up by the plurality of push-up parts sequentially during the rotation of the push-up member;

[0006] A driving device connected to the ejecting member to drive the ejecting member to rotate;

[0007] A clutch device is connected between the ejection member and the driving device to cut off or establish a connection between the driving device and the ejection member.

[0008] The electrical equipment provided in the embodiment of the present application can realize automatic door opening by pushing up the door body through the door-pushing mechanism arranged on the main body, thereby reducing the difficulty of opening the door; a rotatable push-up member is arranged on the base of the door-pushing mechanism, and the push-up member rotates under the drive of the driving device to directly or indirectly push up the door body, thereby realizing automatic door opening; the connection between the push-up member and the driving device can be maintained or cut off through the clutch device, so that the driving device and the push-up member can be protected by cutting off the connection between the driving device and the push-up member when the action of the door-pushing mechanism is interfered with externally. Specifically, multiple push-up parts with increasing distance from the axis center are arranged on the push-up part in sequence along the circumference of the rotating shaft; when the push-up part is driven to rotate by the driving device, the multiple push-up parts push up the push rod in sequence. Among them, when the output torque of the driving device is constant, the top support can be pushed through the top pusher with the smallest distance from the axis. At this time, the force arm is the smallest, so the thrust applied is the largest, so that the door body can be pushed with a large thrust, and the door opening resistance can be broken through with a stable and reliable thrust, and the door body can be opened conveniently and efficiently; at the same time, when the driving output power is constant, the rotation speed of the shaft is basically kept at a uniform speed. As the distance from the top pusher to the axis of the shaft increases, the top pusher force arm at the top pusher of the pusher member that pushes continuously increases gradually, and the corresponding linear speed also increases gradually, so as to realize the acceleration of the push rod, so as to realize the acceleration of the door opening and the efficient opening of the door body. Therefore, in the entire automatic door opening process, the door body is first opened with a large thrust to break through the door opening resistance, and then the door body is further accelerated to the preset opening, which reduces the difficulty of opening the door as a whole, improves the door opening efficiency, and reduces the safety risk of operation.

[0009] In some embodiments, the door lifting mechanism further includes a push rod, which is movably disposed on the base so that when the driving device drives the pushing member to rotate, the push rod is pushed through the multiple pushing parts in sequence to open the door body.

[0010] In some embodiments, the plurality of pushing parts are connected in sequence to form an arc-shaped pushing surface, and the distance from the arc-shaped pushing surface to the rotation center of the pushing member increases linearly.

[0011] In some embodiments, the ejector member comprises:

[0012] A transmission gear, rotatably disposed on the base and connected to the clutch device;

[0013] A cam is connected to the transmission gear, and the arc-shaped push-up surface is arranged on the cam.

[0014] In some embodiments, a plurality of push-up platforms are provided on the push rod, and during the rotation of the push member, the plurality of push-up parts correspondingly push the plurality of push-up platforms in sequence to drive the push rod to push open the door body.

[0015] In some embodiments, the ejector member includes a transmission gear, the plurality of ejector parts are sequentially protruded on a disk surface of the transmission gear, and the distances from the plurality of ejector parts to a rotation center of the transmission gear are sequentially increased.

[0016] In some embodiments, the push rod is slidably disposed on the base, and a trajectory of the push rod is a straight line.

[0017] In some embodiments, a linear guide rail is disposed on the base, a slide groove is provided on the push rod, and the slide groove can be slidably sleeved on the linear guide rail so that the push rod pushes the door body along a linear trajectory.

[0018] In some embodiments, the door lifting mechanism further includes a first in-place detection component;

[0019] The first in-position detection component is connected to the driving device to detect the position information of the push rod and control the action of the driving device.

[0020] In some embodiments, the first in-place detection component comprises:

[0021] A permanent magnet is arranged on the push rod;

[0022] A magnetic conductive sheet, disposed on the push rod, and connected to the permanent magnet;

[0023] The Hall magnetic induction chip is arranged on one side of the magnetic conductive sheet and connected to the driving device, and is used to sense the magnetic field strength to control the action of the driving device according to the change of the magnetic field strength.

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

[0025] The second in-position detection component is connected to the driving device to detect the position information of one of the pushing parts and control the action of the driving device.

[0026] In some embodiments, the second in-position detection component includes a travel switch, which is connected to the driving device and controls the action of the driving device by detecting the position information of the push-top portion.

[0027] In some embodiments, the second in-place detection component further includes:

[0028] A shift fork, the middle part of which is rotatably arranged on the base, one end of which is connected to the contact part of the travel switch, and the other end is matched with the position of one of the pushing top parts arranged on the transmission gear, so as to trigger the travel switch to control the action of the driving device when the corresponding pushing top part pushes the shift fork.

[0029] In some embodiments, a first elastic tensioning member is connected between the shift fork and the base so that the shift fork abuts against the contact portion of the travel switch.

[0030] In some embodiments, the top door mechanism further includes

[0031] A third in-position detection component is connected to the driving device and detects a first in-position signal of one of the ejecting parts to control the driving device to drive the ejecting part to reverse;

[0032] The fourth in-position detection component is connected to the driving device and detects a second in-position signal of one of the pushing parts to control the driving device to stop the action.

[0033] In some embodiments, the top door mechanism further comprises:

[0034] An upper cover is matched and mounted on the base and forms a mounting cavity, wherein the ejector, the driving device and the clutch device are all located in the mounting cavity;

[0035] The sealing cover is connected with the main body to form a sealing cavity and a sealing window. The base and the upper cover are arranged in the sealing cavity. The ejector can extend out of the sealing cover through the sealing window.

[0036] In some embodiments, the top door mechanism further comprises:

[0037] A sealing cover is matched and connected to the base to form a first sealing cavity, and a sealing window communicating with the inside and outside of the first sealing cavity is opened on the sealing cover. The ejecting member is arranged outside the first sealing cavity, and the driving device is arranged in the first sealing cavity. The driving device is connected to the ejecting member through a transmission member passing through the sealing window to drive the ejecting member to eject the door body.

[0038] In some embodiments, the sealing cover is installed on the main body, and the sealing cover is connected with the main body to form a second sealed cavity, and the base is located in the second sealed cavity.

[0039] In some embodiments, the clutch device comprises:

[0040] A first transmission member connected to the driving device;

[0041] A second transmission member is coaxially rotatably disposed on the base with the first transmission member, and the second transmission member is connected to the ejection member;

[0042] a transmission connection member connected to the second transmission member, the transmission connection member being detachably connected to the first transmission member, and when the transmission connection member and the first transmission member move relative to each other, the first transmission member pushes away from the transmission connection member;

[0043] A driving member connected to the transmission connecting member to elastically push the transmission connecting member to connect with the first transmission member. In some embodiments, the transmission connecting member includes:

[0044] A connecting end connected to the second transmission member and detachably connected to the first transmission member;

[0045] The pushing end is connected with the driving member.

[0046] In some embodiments, the connection end comprises:

[0047] A push-up surface abuts against the first transmission member to push the first rotating member to rotate;

[0048] The reverse thrust slope is arranged opposite to the push-up surface so as to bear the thrust of the first transmission member and separate from the first transmission member in a direction perpendicular to the rotation plane of the first transmission member when the transmission connection member and the first transmission member move relative to each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0050] Figure 1 A schematic diagram showing the structure of electrical equipment provided by some embodiments of the present application is shown;

[0051] Figure 2 Shows Figure 1 A schematic diagram of the structure of a first top door mechanism in an electrical device;

[0052] Figure 3 Shows Figure 2 A schematic diagram of the structure of a push rod in a door-lifting mechanism;

[0053] Figure 4 Shows Figure 2 A schematic diagram of the cooperation between the base and the ejector in the door ejection mechanism;

[0054] Figure 5 Shows Figure 1 A schematic diagram of the structure of a second top door mechanism in an electrical device;

[0055] Figure 6 Shows Figure 5 A schematic diagram of the structure of the ejector member in the door ejection mechanism;

[0056] Figure 7 Shows Figure 5 A schematic diagram of the structure of a push rod in a door-lifting mechanism;

[0057] Figure 8 Shows Figure 1 A schematic diagram of the structure of a third type of top door mechanism in an electrical device;

[0058] Fig. 9 Shows Figure 1 A schematic diagram of the structure of a fourth type of top door mechanism in an electrical device;

[0059] Fig.10 Shows Figure 1 A schematic diagram of the structure of the fifth top door mechanism in the electrical equipment;

[0060] Fig.11 Shows Figure 1 A schematic diagram of the structure of a sixth top door mechanism in an electrical device;

[0061] Fig.12 Shows Fig.11 A schematic diagram of the structure inside the installation cavity of the top door mechanism;

[0062] Fig.13 Shows Fig.11 A schematic diagram of the installation state of the top door mechanism;

[0063] Fig.14 Shows Fig.13 A cross-sectional view of

[0064] Fig.15 Shows Fig.11 A schematic diagram of the structure of the base and the upper cover of the top door mechanism in the matching state;

[0065] Fig.16 Shows Fig.11 A schematic diagram of the structure of the sealing cover in the top door mechanism;

[0066] Fig.17 Shows Fig.16 A schematic structural diagram of the sealing cover in the top door mechanism from another perspective;

[0067] Fig.18 Shows Figure 1 A schematic diagram of the explosion state structure of the seventh top door mechanism in the electrical equipment;

[0068] Fig.19 Shows Fig.18 A schematic diagram of the structure of the sealing cover in the top door mechanism;

[0069] Fig. 20 Shows Fig.18 A schematic diagram of the assembly state structure of the top door mechanism in FIG.

[0070] Fig.21 Shows Fig. 20 A cross-sectional view of the top door mechanism in FIG.

[0071] Fig. 22 Shows Fig.18 A schematic diagram of the assembly of the sealing cover, the transmission member and the ejection member in the door ejection mechanism;

[0072] Fig.23 Shows Fig.18 A schematic diagram of the structure of the transmission parts in the top door mechanism;

[0073] Fig.24 Shows Fig.18 A schematic diagram of the structure of the transmission wheel in the top door mechanism;

[0074] Fig.25 Shows Fig.18 A schematic diagram of the structure of the transmission wheel and the transmission member in the top door mechanism;

[0075] Fig.26 Shows Fig.18 A schematic diagram of the structure of the ejector member in the door ejection mechanism;

[0076] Fig. 27 Shows Fig.18 A schematic diagram of the mechanism arrangement in the first sealed cavity of the top door mechanism;

[0077] Fig.28 Shows Fig.18 A schematic diagram of the structure of the base in the top door mechanism;

[0078] Fig.29 Shows Fig.18 A schematic diagram of the structure of the upper cover in the top door mechanism;

[0079] Fig.30 Shows Fig.29 A partial structural cross-sectional view of the top door mechanism being assembled into the main body;

[0080] Fig.31 for Figure 1 A schematic diagram of the structure of the clutch device of the top door mechanism;

[0081] Fig.32 A schematic diagram of the explosion state of the clutch device in 31 is shown;

[0082] Fig.33 Shows Fig.32 A schematic diagram of the clutch device in the explosion state from another perspective;

[0083] Fig.34 Shows Fig.31 A schematic structural diagram of a first transmission member of a clutch device;

[0084] Fig.35 Shows Fig.31 A schematic structural diagram of a second transmission member of a clutch device;

[0085] Fig.36 Shows Fig.35 A schematic structural diagram of the second transmission member of the clutch device from another perspective;

[0086] Fig.37 Shows Fig.31 A schematic structural diagram of a transmission connecting member of a clutch device;

[0087] Fig.38 Shows Fig.33 A schematic structural diagram of a transmission connecting member of a clutch device from another perspective;

[0088] Fig.39 Shows Fig.31 A schematic diagram of the connection between the transmission connecting member in the clutch device and the second transmission member;

[0089] Fig.40 Shows Fig.31 A schematic three-dimensional structural diagram of the assembled state of the clutch device;

[0090] Fig.41 for Fig.40 A front view of the clutch device in FIG.

[0091] Fig.42 for Fig.40 A first perspective cross-sectional view of the clutch device;

[0092] Fig.43 for Fig.40 A second perspective sectional view of the clutch device in FIG.

[0093] Reference numerals:

[0094] 10- top door mechanism, 11- main body, 12- door body;

[0095] 100-housing, 110-base, 111-rotating shaft, 112-linear guide rail, 113-first stopper, 114-supporting slide rail, 120-upper cover, 121-shaft cylinder, 130-installation cavity;

[0096] 200-driving device, 210-motor, 220-worm, 230-gear set;

[0097] 300-clutch device, 310-first transmission member, 311-card slot, 311a-pushing top surface, 311b-reverse push inclined surface, 311c-groove bottom, 320-second transmission member, 321-card hole, 322-limiting shaft cylinder, 323-accommodating groove, 324-stop boss, 330-transmission connecting member, 331-mounting seat, 331a-first shaft hole, 331b-avoidance groove, 331c-limiting groove, 332-connecting arm, 332a-pushing surface, 332b-pushing top inclined surface, 332c-top surface, 340-resetting member, 350-baffle, 351-avoidance gap, 352-locking groove, 353-second shaft hole, 360-locking member, 361-stop washer, 370-mounting shaft;

[0098] 400-push-up member, 410-transmission gear, 411-push-up portion, 411a-first target boss, 411b-second target boss, 411c-first in-position detection portion, 411d-second in-position detection portion, 420-cam, 421-arc-shaped push-up surface;

[0099] 500-push rod, 510-rod body, 511-slide groove, 512-pushing support platform, 513-top door end, 520-shock-absorbing sleeve, 530-shock-absorbing seat, 540-resetting member, 541-hook, 550-pushed support platform, 551-supporting surface, 560-support platform part, 570-pushing rod;

[0100] 600-in-place detection device, 610-first in-place detection component, 611-permanent magnet, 612-magnetic conductive sheet, 613-Hall magnetic induction chip, 620-second in-place detection component, 621-first travel switch, 621a-first contact part, 622-first fork, 623-first elastic tensioning member, 630-third in-place detection component, 631-second travel switch, 632-second fork, 633-second elastic tensioning member, 640-fourth in-place detection component;

[0101] 700-sealing cover, 710-cover body, 711-sealing window, 711a-sealing window inner wall, 711b-sealing shaft cylinder, 712-second stopper, 720-connecting part, 721-connecting hole, 721a-sinking groove, 722-locking piece, 723-sealing sticker, 730-first sealing cavity, 740-second sealing cavity, 750-sealing pad, 760-first sealing ring, 770-third sealing cavity;

[0102] 800-transmission member, 810-transmission shaft, 811-fixed groove, 812-axial support platform, 812a-connecting shaft, 820-connecting gear, 821-third in-position detection part, 822-shaft groove, 830-second sealing ring. DETAILED DESCRIPTION

[0103] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0104] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0105] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0106] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0107] As a common electrical appliance, refrigerators are widely used in various fields and should have good sealing performance. For this reason, a sealing structure is usually set between the door and the main body, such as a sealing strip, a magnetic adsorption mechanism, etc., to maintain the contact sealing performance and sealing state stability between the door and the main body. However, this also increases the difficulty of opening the door to a certain extent, making the door opening operation inconvenient, the opening operation efficiency low, and there is a safety risk of the main body tipping over.

[0108] To this end, an embodiment of the present application provides an electrical device that can at least to a certain extent solve the technical problems of inconvenient door opening operation, low efficiency and certain safety risks, thereby improving the efficiency, convenience and safety of door opening.

[0109] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0110] Figure 1 The schematic diagram of the structure of the electrical equipment provided by some embodiments of the present application is shown; see Figure 1 In some embodiments, the electrical device includes a main body 11, a door body 12, and a door-lifting mechanism 10 disposed on the main body 11 for automatically pushing up the door body. The door-lifting mechanism 10 automatically pushes up the door body to replace the manual door-pulling operation, which can reduce the difficulty of opening the door to a certain extent and improve the operation efficiency and safety.

[0111] Figure 2 Shows Figure 1 Schematic diagram of the structure of the top door mechanism 10 of the electrical equipment, see Figure 1 and Figure 2 In some embodiments, the door lifting mechanism 10 may include a push-up member 400, a clutch device 300, and a driving device 200. The push-up member 400 may be movably disposed on the base 110 and connected to the driving device 200 through the clutch device 300, so that the push-up member 400 may move relative to the base 110 under the drive of the driving device 200 to push up the door body 12. The base 110 may be mounted on the main body 11, so that when the door lifting mechanism 10 pushes up the door body, the main body 11 may be used as a force application basis.

[0112] The clutch device 300 is connected to the ejector 400 and the driving device 200 as a transmission structure to transmit the driving force; at the same time, the connection between the driving device 200 and the ejector 400 can be disconnected, so as to avoid the driving device 200 and the ejector 400 from interfering with each other and causing damage when subjected to external interference.

[0113] In some embodiments, the ejection member 400 can be rotatably disposed on the base 110, and a plurality of ejection parts 411 that are successively increased in size relative to the rotation center of the ejection member 400 can be disposed on the ejection member 400, and during the rotation of the ejection member 400, the plurality of ejection parts 411 directly push the door body 12 in sequence according to the order of their positions.

[0114] See also Figure 2In some embodiments, in order to obtain a larger pushing stroke, the door pushing mechanism 10 may include a push rod 500, and the push rod 500 may be movably set on the base 110 and connected to the pushing member 400; when the pushing member 400 is driven and rotated by the driving device 200, the push rod 500 can move along a set trajectory to push the door body to open the door.

[0115] Figure 3 Shows Figure 2 A schematic diagram of the structure of the push rod in the top door mechanism; Figure 2 and Figure 3 In some embodiments, in order to connect with the pushing part 411, a pushing support 512 can be correspondingly provided on the push rod 500 as a pushed part, so that the pushing part 411 pushes the pushing support 512 to push the push rod 500 to move.

[0116] Taking into account that the initial door opening resistance of the door body of electrical equipment such as refrigerators is large, the resistance decreases rapidly after being pushed open to a certain angle, and pushing the door body vigorously throughout the entire process will increase the safety risk of opening the door; for this reason, multiple pushing top parts 411 can be arranged at intervals along the circumference of the rotating shaft 111, wherein the distances from the multiple pushing top parts 411 arranged along the circumference of the rotating shaft 111 to the axis center of the rotating shaft 111 are increased successively, so that the force arm length of the pushing force of each pushing top part 411 when pushing the pushing support 512 is increased successively; when the power output by the driving device 200 is basically the same, the torque output to the pushing member 400 is also basically the same, because the torque is the product of the force arm and the force, so when the force arm is minimum, the pushing force acting on the pushing support 512 is the largest; when pushing the door body, one of the multiple pushing top parts 411 closest to the axis center of the rotating shaft 111 can be pushed against the pushing support 512 first to obtain the relatively largest pushing force, so as to stably and reliably break through the door opening resistance, reduce the difficulty of opening the door, and improve the door opening efficiency.

[0117] In some embodiments, since the distances from the multiple pushing parts 411 to the axis of the rotating shaft 111 are different, in order to ensure that the multiple pushing parts 411 are smoothly and continuously connected to the top door, the pushing platform 512 can also be set to be multiple, and the distances from the multiple pushing platforms 512 to the axis of the rotating shaft 111 are correspondingly increased to correspond to the multiple pushing parts 411. Therefore, in the process of the pushing member 400 rotating the pushing rod 500, the multiple pushing parts 411 push the corresponding pushing platforms 512 in turn, thereby continuously pushing the door body 12.

[0118] In the process that the multiple pushing parts 411 push the pushing platform 512 in sequence along the circumferential direction of the rotating shaft 111, the pushing force arm increases in sequence and the pushing force decreases accordingly, thereby avoiding the safety risks of excessive continuous pushing force, over-accelerating the pushing door body, causing the door body to collide with the surrounding people or environment, and causing severe vibration.

[0119] At the same time, when the output power of the driving device 200 is relatively stable, the rotation speed of the pushing member 400 is also correspondingly stable, and when the linear speed of the pushing member 400 is equal to the product of the rotation speed and the rotation radius, the linear speed at each pushing portion 411 is different, and as the axial distance to the rotating shaft 111 increases, the linear speeds of the multiple pushing portions 411 along the circumference of the rotating shaft 111 increase successively, and the pushing speed of the push rod 500 also increases accordingly, that is, the door body can be pushed up at high speed and the door body can be quickly pushed open, achieving the effect of convenient and efficient door opening.

[0120] The door-pushing mechanism provided in the embodiment of the present application realizes an automatic door opening operation by initially pushing the door with great force, breaking through the door opening resistance, pushing the door body open, and then pushing the door body open at a high speed, by arranging a plurality of pushing top portions on the rotating pushing member 400 along the circumference of the rotating shaft 111 with successively increasing distances from the axial center of the rotating shaft 111. The operation process is convenient, efficient, stable and safe.

[0121] In some embodiments, the rotation and pushing direction of the push member 400, the arrangement direction of the push top portion 411, and the push direction of the push rod 500 can be matched and set to take into account the effects of efficient door pushing function and convenient installation. In the process of automatic door opening, in the direction of the push member 400 rotating to push the push rod 500 to push the door body, the distances from the multiple push top portions 411 to the axis of the rotating shaft 111 can be increased in sequence; that is, the direction of the push member 400 rotating to push the push rod 500 to push the door body is set so that the push top portion 411 close to the axis of the rotating shaft 111 among the multiple push top portions 411 pushes the push top bearing 512 on the push rod 500 first, and the push top portion 411 closest to the axis of the rotating shaft 111 starts to contact the push top bearing 512, and then the push top portions 411 along the direction of increasing distance to the axis of the rotating shaft 111 are connected to the corresponding push top bearing 512 on the push rod 500 in sequence until the push rod 500 reaches the set maximum stroke position.

[0122] In some embodiments, in order to match the arrangement positions and rotation trajectories of multiple pushing parts 411, the arrangement positions of multiple pushing platforms 512 can be set in a direction away from the top door end 513 of the push rod 500 in a manner that increases in distance from the axial center of the rotating shaft 111, so that each pushing platform 512 is connected to a corresponding pushing part 411 to achieve a stable structural connection; that is, the pushing platform 512 closest to the axial center of the rotating shaft 111 is connected to the pushing part 411 closest to the axial center of the rotating shaft 111, and then the connection and pushing operations of all the pushing platforms 512 and the pushing parts 411 are achieved one by one in sequence.

[0123] In some embodiments, in a direction away from the ejector 400 , the distances between the plurality of ejector platforms 512 and the ejector 400 also increase successively, so that when the ejector 400 rotates, the plurality of ejector parts 411 close to the push rod 500 are matched and received successively.

[0124] In some embodiments, in the direction away from the top door end 513 of the push rod 500, the difference in distances from two adjacent push-up platforms 512 to the push member 400 can be taken as a first difference, and two adjacent first differences are equal; that is, in the direction away from the top door end 513 of the push rod 500, multiple push-up platforms 512 are arranged at equal intervals, and to a certain extent, the connection stability between the push-up platforms 512 and the push-up part 411 is maintained, thereby avoiding the inappropriate spacing setting of the push-up platforms 512 affecting the push-up effect.

[0125] In some embodiments, in order to improve the pushing stability of the pushing member 400, the plurality of pushing parts 411 can be arranged at equal intervals in the circumferential direction of the rotating shaft 111, that is, the angle between any two adjacent pushing parts 411 in the plurality of pushing parts 411 and the axis of the rotating shaft 111 is the first angle, and the two adjacent first angles are equal. Thus, the plurality of pushing parts 411 can contact the pushing rod 500 at a relatively stable frequency; and can further match the pushing bearing platforms 512 arranged at equal intervals in the direction away from the top door end 513 of the pushing rod 500, so as to achieve a stable and reliable pushing operation.

[0126] Figure 4 Shows Figure 2 Schematic diagram of the cooperation between the base and the push-out member in the door-lifting mechanism; combined with 2 and Figure 4 In some embodiments, in order to reduce the specifications of the device structure to a certain extent, the ejector 400 can be set as a transmission gear 410, and multiple ejector parts 411 can be set on the disk surface of the transmission gear 410. The transmission gear 410 is connected to the driving device 200 by gear meshing, thereby realizing a simple and flat transmission connection; at the same time, the ejector part 411 and the transmission gear 410 can be staggered up and down, and a part of the ejector support 512 of the push rod 500 can be arranged above the transmission gear 410 to match the ejector part 411, so that the distance between the push rod 500 and the ejector 400 can be reduced to a certain extent, and an overall small-scale layout can be realized.

[0127] See also Figure 2 In some embodiments, the driving device 200 may include a motor 210, a worm 220 and a gear set 230. The worm 220 is connected to the output shaft of the motor 210 and is connected to the gear set 230, and the gear set 230 is connected to the transmission gear 410 to simplify the transmission structure.

[0128] See also Figure 2 , Figure 3 and Figure 4In some embodiments, in order to maintain the stability of the push-up operation, the moving track of the push rod 500 can be set to a straight line, that is, the door body is pushed up along a straight line. Accordingly, a linear guide rail 112 can be set on the base 110, and a slide groove 511 can be set on the rod body 510 of the push rod 500. The linear guide rail 112 is embedded in the slide groove 511, so as to guide the push-up operation of the push rod 500 along a straight line.

[0129] See also Figure 2 In some embodiments, in order to maintain the stability of the abutment between the pushing support 512 and the pushing end portion 411, a reset member 540 can be connected between the push rod 500 and the base 110. Based on the base 110, a reset restoring force is continuously applied to the rod body 510 of the push rod 500, so that the push rod 500 can be reset under the action of the restoring force of the reset member 540.

[0130] Under the action of the restoring force, a certain degree of pressure is always maintained between the pushing support platform 512 and the pushing portion 411, so as to keep the two in stable contact and ensure the stability of the pushing state.

[0131] See also Figure 2 and Figure 3 In order to reduce the damage of the push rod 500 to the door body, a shock-absorbing sleeve 520 can be set at the top door end 513 of the push rod 500; shock-absorbing rubber sleeves, rubber pads, etc. can be used to buffer impact and vibration and reduce noise.

[0132] A shock-absorbing seat 530 may also be provided on the base 110 and may be provided at the end of the stroke of the push rod 500 to weaken the impact of the push rod 500 and reduce vibration and noise when the push rod 500 is reset.

[0133] See also Figure 2 In some embodiments, the door lift mechanism 10 is further provided with an in-position detection device 600, which is connected to the driving device 200 to detect the rotation in-position signal of the ejection member 400 or the push rod 500, and control the action of the driving device 200 to adjust the operating state of the door lift mechanism 10, such as controlling the stop standby, reset and other operating states of the door lift mechanism 10.

[0134] In some embodiments, the in-position detection device 600 can detect an in-position signal of the ejecting portion 411 on the ejecting member 400 to determine the in-position status of the ejecting member 400 and control the driving device 200 to stop the action.

[0135] In some embodiments, the in-position detection device 600 can detect an in-position signal of a pushing portion 411 that is farthest from the axis of the rotating shaft 111 as a trigger signal.

[0136] In the initial state, the in-position detection device 600 contacts the push-up portion 411, and the driving device 200 is on standby. During the automatic door opening process of the door lifting mechanism 10, after the driving device 200 drives the push rod 500 to push the door body to the right position, all the push-up portions 411 are not in contact with the push rod 500, and the push rod 500 is reset under the action of the reset member 540. During the process, the push-up portion 411 farthest from the axis of the rotating shaft 111 rotates out of position, and the detection signal state of the in-position detection device 600 jumps, until the push-up portion 411 farthest from the axis of the rotating shaft 111 resets and triggers the in-position detection device 600, the driving device 200 stops, and the door lifting mechanism 10 is on standby.

[0137] In some embodiments, the in-position detection device 600 may include a second in-position detection component 620, and the one of the plurality of pushing parts 411 farthest from the axis of the rotating shaft 111 is set as a boss protruding on the transmission gear 410, namely, the second target boss 411b.

[0138] In some embodiments, the second in-position detection component 620 may include a first travel switch 621, a first fork 622 and a first elastic tensioner 623; the first fork 622 is rotatably arranged on the base 110, and one end of the first fork 622 is matched and connected with the first contact part 621a of the first travel switch 621, and the other end of the first fork 622 is arranged to be accompanied by the position of the second target boss 411b, so as to touch the first contact part 621a when the second target boss 411b pushes the first fork 622, thereby triggering the first travel switch 621; the first elastic tensioner 623 is connected between the first fork 622 and the base 110, providing a stable elastic force, so that the first fork 622 can be stably connected to the first contact part 621a, so as to stably detect the swing of the first fork 622.

[0139] Fig.31 for Figure 1 A schematic diagram of the structure of the clutch device of the top door mechanism; Fig.32 A schematic diagram of the explosion state of the clutch device in 31 is shown; Fig.33 Shows Fig.32 A schematic diagram of the clutch device in the explosion state from another perspective; Fig.40 Shows Fig.31 A schematic three-dimensional structural diagram of the assembled state of the clutch device; Fig.41 for Fig.40 Front view of the clutch device in.

[0140] Combination Fig.31 , Fig.32 , Fig.33 , Fig.40 and Fig.41In some embodiments, the clutch device 300 may include a first transmission member 310, a second transmission member 320, and a transmission connection member 330; the first transmission member 310 and the second transmission member 320 are coaxially rotatably connected to the base 110, the transmission connection member 330 is connected to the second transmission member 320, and the transmission connection member 330 is detachably connected to the first transmission member 310. Therefore, when the transmission connection member 330 is connected to the first transmission member 310, the second transmission member 320 and the first transmission member 310 will maintain synchronous movement; when the second transmission member 320 has a tendency to move relative to the first transmission member 310, the first transmission member 310 can push the transmission connection member 330 away from the first transmission member 310, thereby finally disconnecting the connection between the first transmission member 310 and the second transmission member 320, so that the first transmission member 310 and the second transmission member 320 no longer move synchronously, and the transmission path of the transmission structure is cut off.

[0141] The first transmission member 310 is connected to the driving device 200 , and the second transmission member 320 is connected to the ejecting member 400 , so as to maintain or cut off the transmission connection path between the driving device 200 and the ejecting member 400 through the clutch device 300 .

[0142] When the second transmission member 320 tends to rotate relative to the first transmission member 310, the first transmission member 310 will push the transmission connection member 330 to disengage from the first transmission connection member 310 to cut off the connection between the first transmission member 310 and the second transmission member 320, so that the first transmission member 310 will not rotate with it, thereby isolating the upstream driving device and the downstream functional mechanism, avoiding damage to the driving device, and reducing the mechanical damage to the downstream functional mechanism to a certain extent.

[0143] In some embodiments, the clutch device 300 adopts a mechanically adaptive separation structure, and is designed through the structural coordination of the transmission connection 330 and the first transmission member 310 to track the movement state of the first transmission member 310 and the second transmission member 320, so that when the second transmission member 320 tends to rotate relative to the first transmission member 310, the first transmission member 310 pushes the transmission connection 330 to separate, so as to adaptively cut off the connection between the first transmission member 30 and the second transmission member 320. Adaptive separation operation.

[0144] A push surface 332a can be set on the transmission connecting member 330, and the push surface 332a can be abutted against the first transmission member 310, so that when the driving device 200 drives the first transmission member 310 to rotate, the push surface 332a can push the transmission connecting member 330, so that the transmission connecting member 330 and the second transmission member 320 connected thereto can rotate with the first transmission member 310, maintain the coupling of the rotation path, and output the driving torque to the downstream functional mechanism.

[0145] A pushing inclined surface 332b opposite to the pushed surface can be further provided on the transmission connecting member 330. When the second transmission member 320 and the first transmission member 310 tend to move relative to each other, the pushing inclined surface 332b abuts against the first transmission member 310, and a pushing force for eliminating the tendency of relative movement between the first transmission member 310 and the second transmission member 320 is formed between the pushing inclined surface 332b and the first transmission member 310, and the pushing force is roughly perpendicular to the pushing inclined surface 332b. At this time, the pushing force will have a component that pushes the transmission connecting member 330 away from the first transmission member 310, thereby adaptively pushing the transmission connecting member 330 to disengage from the first transmission member 310, so as to finally cause the transmission connecting member 330 to disengage from the first transmission member 310 and cut off the connection between the first transmission member 310 and the second transmission member 320.

[0146] Fig.37 Shows Fig.31 The schematic diagram of the structure of the transmission connecting parts in the clutch device, Fig.38 for Fig.37 Another perspective diagram of the transmission connection in FIG. Fig.37 and Fig.38 In some embodiments, the transmission connection member 330 may include a mounting seat 331 and a plurality of connection arms 332 disposed on the mounting seat 331; wherein the push surface 332a and the push-up inclined surface 332b are respectively disposed on the connection arm 332 and are located on two different sides. When the second transmission member 320 rotates synchronously with the first transmission member 310, the side where the push surface 332a is located bears the thrust of the first transmission member 310, and the transmission connection member 330 drives the second transmission member 320 to rotate; when the second transmission member 320 has a tendency to rotate relative to the first transmission member 310, the side where the push-up inclined surface 332b is located actively pushes up the first transmission member 310 and bears the reverse thrust of the first transmission member 310, so that the transmission connection member 330 gradually disengages from the first transmission member 310, and then the second transmission member 320 is disconnected from the first transmission member 310.

[0147] Fig.34 Shows Fig.31 A schematic structural diagram of the first transmission member of the clutch device, Fig.42 for Fig.40 A first perspective cross-sectional view of the clutch device; Fig.43 Shows Fig.40 A second perspective cross-sectional view of the clutch device in FIG. Fig.34 , Fig.42 and Fig.43In some embodiments, in order to achieve a detachable connection between the transmission connector 330 and the first transmission member 310 and to ensure the stability of the connection state and the smoothness of the separation operation, a slot 311 may be provided on the first transmission member 310 to accommodate the connecting portion of the transmission connector 330; wherein, an inner wall of the slot 311 is provided with a matching abutment against the pushing surface 332a for correspondingly pushing up the transmission connector 330; and the pushing up inclined surface 332b may be further abutted against the notch of the slot 311 at least in part, so that when the second transmission member 320 tends to rotate relative to the first transmission member 310, the pushing up inclined surface 332b directly pushes the notch of the slot 311 to quickly disengage from the slot 311 and disconnect the transmission connector 330 from the first transmission member 310.

[0148] In some embodiments, since the first transmission member 310 and the second transmission member 320 are coaxially arranged, the slot 311 can be arranged on the side of the first transmission member 310 close to the second transmission member 320, so that the travel required for the connection and separation of the transmission connection member 330 and the slot 311 is shorter, which can improve the connection and separation efficiency of the transmission connection member 330 and the slot 311 to a certain extent.

[0149] In some embodiments, in order to take into account the reliability of connection and separation between the transmission connecting member 330 and the slot 311, a reverse thrust slope 311b adapted to the push-up slope 332b can be opened in the slot 311. When the second transmission member 320 has a tendency to rotate relative to the first transmission member 310, the push-up slope 332b abuts against the reverse thrust slope 311b and further moves relatively along the slope direction, so that the transmission connecting member 330 moves in the direction of disengaging from the first transmission member 310 until the transmission connecting member 330 disengages from the slot 311.

[0150] The surface contact displacement between the push-up inclined surface 332 b and the reverse push inclined surface 311 b can maintain the stability of the force and movement direction of the transmission connecting member 330 to a certain extent, so that it can stably and reliably separate from the first transmission member 310 .

[0151] In some embodiments, the push-up slope 332b and the reverse push slope 311b may be arc-shaped slopes to improve the smoothness of relative sliding to a certain extent.

[0152] Fig.35 Shows Fig.31 A schematic structural diagram of a second transmission member 320 of the clutch device; Fig.36 for Fig.35 A structural diagram of the second transmission member 320 from another perspective. Fig.35 and Fig.36In some embodiments, a card hole 321 can be set on the second transmission member 320, and the transmission connecting member 330 can be movably set in the card hole 321, and can be moved out of the card hole 321 to connect with the first transmission member 310, so as to realize the synchronous rotation of the first transmission member 310 and the second transmission member 320; it can also be moved back into the card hole 321 to disconnect from the first transmission member 310.

[0153] Fig.39 Shows Fig.31 Schematic diagram of the connection between the transmission connecting member and the second transmission member in the clutch device. Fig.35 , Fig.36 , Fig.37 , Fig.38 and Fig.39 In some embodiments, the transmission connecting member 330 may include at least one connecting arm 332 arranged on the mounting seat 331, and the connecting arm 332 can be movably inserted into the card hole 321, and can extend out of the card hole 321 to connect with the first transmission member 310; accordingly, the pushed surface 332a and the pushing inclined surface 332b can be arranged on the connecting arm 332.

[0154] Combination Fig.34 and Fig.43 In some embodiments, the shape of the connecting arm 332 can also be designed to match the groove type of the card slot 311, so that the connecting arm 332 is embedded in the card slot 311, maintaining a stable connection between the connecting arm 332 and the card slot 311, and can be smoothly detached from the card slot 311.

[0155] The pushed surface 332a and the push-up inclined surface 332b are respectively arranged on two opposite side surfaces of the connecting arm 332, and can be specifically arranged on two side surfaces along the circumferential direction of the rotation of the first transmission member 310. Accordingly, the positions of the push-up surface 311a and the reverse push inclined surface 311b are matched and arranged, so that the transmission connecting member 330 can rotate with the first transmission member 310 under the push of the push-up surface 311a of the first transmission member 310, and can also be separated from the card slot 311 under the push of the reverse push inclined surface 311b.

[0156] In some embodiments, a top surface 332c can be set at the top end of the connecting arm 332, opposite to the bottom 311c of the slot 311, and when the pushed surface 332a and the pushing surface 311a are in abutment with each other, the top surface 332c can also abut against the bottom 311c, thereby achieving limiting through the two surface contact positions to ensure the stability of the connection state.

[0157] In some embodiments, the number of connecting arms 332 can be set to three or more, and they are arranged at equal intervals on the mounting seat, so that at least three detachable connecting parts can be formed between the first transmission member 310 and the transmission connecting member, thereby ensuring the stability of the connection state, and also ensuring the balance of force when the connecting arm 332 is disengaged, thereby ensuring the smoothness and smoothness of the disengagement.

[0158] In some embodiments, the mounting seat can be set on the side of the second transmission member 320 away from the first transmission member 310 to avoid occupying the gap between the first transmission member 310 and the second transmission member 320, so that the first transmission member 310 and the second transmission member 320 can be arranged in close proximity with a smaller gap, thereby maintaining the first transmission member 310 and the second transmission member 320 in a roughly parallel state within the rotation plane, avoiding posture defects such as warping and unilateral deflection, and ensuring transmission quality.

[0159] In other embodiments, the mounting seat 321 may be disposed between the first transmission member 310 and the second transmission member 320, and the connecting arms 320 may be disposed on both sides of the mounting seat 321 to respectively connect the first transmission member 310 and the second transmission member 320. The mounting seats 321 may be movably disposed in the card slot 311 and the card hole 321, respectively.

[0160] See also Fig.31 , Fig.32 and Fig.33 In some embodiments, the clutch device 300 also includes an elastic push-up member 340, which is connected to the transmission connection member 330 to apply an elastic force to the transmission connection member 330 to keep the transmission connection member 330 stably connected to the first transmission member 310, and can elastically absorb the reverse thrust of the first transmission member 310 when the transmission connection member 330 is separated from the first transmission member 310, so that the first transmission member 310 can be separated smoothly, thereby taking into account both the stable connection and flexible separation of the transmission connection member 330 and the first transmission member 310.

[0161] See also Fig.31 , Fig.40 , Fig.41 and Fig.42 In some embodiments, in the first transmission member 310 and the second transmission member 320 coaxially arranged on the base 110, the second transmission member 320 can be arranged closer to the base 110, and the elastic push-up member 340 can be connected between the base 110 and the second transmission member 320, and an elastic thrust is applied to the transmission connecting member 330 based on the base 110 to keep the transmission connecting member 330 stably connected to the second transmission member 320 and maintain a detachable connection with the first transmission member 310.

[0162] See also Fig.42 and Fig.43In some embodiments, considering that the second transmission member 320 can rotate relative to the base 110, in order to avoid the relative rotation from twisting and pulling the elastic push-up member 340, causing adverse effects on the structural form and function, the elastic push-up member 340 can be connected between the second transmission member 320 and the mounting seat 331, so that the elastic push-up member 340 follows the movement of the second transmission member 320 instead of being directly connected to the base 110; accordingly, the elastic push-up member 340 applies an elastic force to the mounting seat 331 based on the second transmission member 320.

[0163] In some embodiments, a baffle 350 may be disposed on the second transmission member 320 and connected to the elastic ejection member 340 to serve as a mounting and force application basis for the elastic ejection member 340. The specific location of the baffle 350 may be flexibly set according to actual needs.

[0164] In some embodiments, in order to maintain the stability of the active connection between the transmission connecting member 330 and the second transmission member 320, a receiving groove 323 may be provided on the side of the second transmission member 320 close to the base 110 to accommodate the mounting seat 331 of the transmission connecting member 330, and a clamping hole 321 may be provided at the bottom of the receiving groove 323 to connect the receiving groove 323 with the side of the second transmission member 320 away from the base 110, so that the connecting arm 332 may be inserted into the clamping hole 321 and extended out of the clamping hole 321 to connect with the first transmission member 310. Accordingly, the elastic ejector 340 may be connected to the mounting seat 331 to apply an elastic thrust so that the mounting seat 331 is stably maintained in the receiving groove 323 to avoid disengagement and maintain the stability of the connection state.

[0165] In some embodiments, the elastic ejector 340 may also be disposed in the accommodating groove 323 , and the accommodating groove 323 may be used to protect the elastic ejector 340 , thereby reducing the risk of external structures or debris interfering with the function of the elastic ejector 340 .

[0166] See also Fig.40 , Fig.42 and Fig.43 In some embodiments, the baffle 340 can be set in the accommodating groove 323 to block the notch of the accommodating groove 323, and the mounting seat 331 and the elastic push-up member 340 can be integrally constrained and encapsulated in the trough cavity surrounded by the accommodating groove 323 and the baffle 350, so as to maintain the stability of the structural form and position of the elastic push-up member 340 and the mounting seat 331, and further reduce the influence of external interference factors.

[0167] In some embodiments, the baffle 350 may be connected to the outside of the accommodating groove 323, or the baffle 350 may be installed in the accommodating groove 323, which can be flexibly selected.

[0168] When the baffle 350 is arranged in the receiving groove 323, in order to facilitate the installation of the baffle, a stop boss 324 can be arranged on the second transmission member 320, and the stop boss 324 can be arranged on the inner wall of the receiving groove 323 and protrude from the inner wall of the groove. When the baffle 350 is installed in the receiving groove 323, the baffle 350 can be placed on the stop boss 324 and the elastic ejector 340 can be mounted.

[0169] In some embodiments, a locking groove 352 may also be opened on the baffle 350 to accommodate the embedded stop boss 324, so that when the baffle 350 is installed in the accommodating groove 323, the stop boss 324 is embedded in the locking groove 352 to maintain the stability of the position of the baffle 350 and follow the rotation of the second transmission member 320 to avoid relative rotation.

[0170] Specifically, the locking groove 352 may be disposed on a side of the baffle plate 350 away from the elastic ejection member 340 , so that the baffle plate 350 is stably pressed against the stop boss 324 under the elastic force of the elastic ejection member 340 .

[0171] In some embodiments, in order to prevent debris from entering the accommodating groove 323, the shape of the baffle 350 can be set to match the groove shape of the accommodating groove 323 to fill and block the notch of the accommodating groove 323 and reduce the assembly gap.

[0172] Considering that the stop boss 324 protrudes from the side wall of the receiving groove 323, forming an obstacle for the baffle 350 to be inserted into the receiving groove, an avoidance notch 351 can be provided on the outer edge of the baffle 350. When the baffle 350 is installed, the avoidance notch 351 can be aligned with the stop boss 324 and then correspondingly inserted into the receiving groove 323, and then the baffle 350 is rotated so that the stop boss 324 is inserted into the locking groove 352 to lock the baffle 350. The avoidance notch 351 and the locking groove 352 can be arranged at equal intervals on the outer edge of the baffle 350.

[0173] In some embodiments, more than three stop bosses 324 may be provided and arranged at equal intervals on the inner wall of the accommodating groove 324 . Accordingly, more than three avoidance gaps 351 are also provided, and the number of the stop bosses 324 and the avoidance gaps 351 are the same.

[0174] In some embodiments, the elastic ejector 340 may be an elastic element that applies elastic force through elastic deformation, such as a spring, a leaf spring, a torsion spring, etc. The elastic element may be compressed between the baffle 350 and the mounting seat 331 , and the baffle 350 and the mounting seat 351 are pressed at the same time.

[0175] See also Fig.38 and Fig.43In some embodiments, in order to facilitate the stability of the posture and position of the elastic push-up member 340 such as a spring and a tower spring, a limiting groove 331c can be opened on the mounting seat 331, and one end of the elastic push-up member 340 can be embedded in the limiting groove 331c to limit the slippage of the end of the elastic push-up member 340 such as a spring and a tower spring, thereby ensuring the reliability of the deformation posture and maintaining stable deformation and elastic force output.

[0176] In some embodiments, the first transmission member 310 and the second transmission member 320 may be configured as transmission gears, and coaxially and rotatably sleeved on a mounting shaft 370 disposed on the base 110. In order to prevent the first transmission member 310 and the second transmission member 320 from being separated from the mounting shaft 370, a locking member 360 may be further provided on the mounting shaft 370 and connected to the top of the mounting shaft 370 to prevent the first transmission member 310 and the second transmission member 320 from being separated.

[0177] In some embodiments, the locking member 360 may be configured as a head screw, and a stop washer 361 may be provided to cooperate with the head screw to lock the first transmission member 310 and the second transmission member 320 .

[0178] In some embodiments, considering that an accommodating groove 323 is opened in the second transmission member 320, in order to take into account the stability of the rotation posture and uniform force of the second transmission member 320, the accommodating groove 323 can be set as an annular groove, and a limiting shaft cylinder 322 is formed on the second transmission member 320, and the limiting shaft cylinder 322 is sleeved on the installation shaft 370.

[0179] Correspondingly, a first shaft hole 331 a may be opened in the middle of the mounting seat 331 , and a second shaft hole 353 may be opened in the middle of the baffle 350 , for matching and sleeved on the mounting shaft 370 .

[0180] Fig. 9 Shows Figure 1 A schematic diagram of the structure of the fourth top door mechanism in the electrical equipment; combined with Fig. 9 In some embodiments, the in-place detection device 600 may include a first in-place detection component 610 connected to the driving device 200 to control the action of the driving device 200 by directly detecting the in-place information of the position of the push rod 500 .

[0181] In some embodiments, the first in-position detection component 610 may include a permanent magnet 611, a magnetic conductive sheet 612 and a Hall magnetic sensing chip 613; the permanent magnet 611 and the magnetic conductive sheet 612 are connected and are both arranged on the shaft 510 of the push rod 500; the Hall magnetic sensing chip 613 is arranged on one side of the magnetic conductive sheet 612 and is connected to the driving device 200, and is used to sense the magnetic field strength to control the action of the driving device according to the change of the magnetic field strength.

[0182] Fig.10 Shows Figure 1 A schematic diagram of the structure of the fifth type of top door mechanism in the electrical equipment in FIG. Fig.10 In order to accurately control the pushing stroke of the door lifting mechanism, an in-position detection device 600 can be provided to detect the first in-position signal and the second in-position signal of the pushing portion 411 to control the driving device 200 to drive the pushing member 400 to reverse, reset or stop the action.

[0183] In some embodiments, the in-position detection device 600 may include a third in-position detection component 630 and a fourth in-position detection component 640, which respectively detect two in-position signals of the ejecting part 411 to respectively control the driving device 200 to drive the ejecting part 400 to reverse, reset and stop.

[0184] In some embodiments, the two push-up parts 411 can be configured as a first target boss 411a and a second target boss 411b protruding from the disk surface of the transmission gear 410; the in-position detection device 600 detects two in-position signals of the first target boss 411a and the second target boss 411b.

[0185] In some embodiments, the first in-position detection component 610 can be connected to the driving device 200; during the operation of the door ejection mechanism, the third in-position detection component 630 corresponds to detecting the first in-position signal of the first target boss 411a. When the first target boss 411a rotates to the position following the transmission gear 410 and the third in-position detection component 630 detects the first in-position signal, the third in-position detection component 630 controls the driving device 200 to drive the transmission gear 410 to reverse, so as to reset the ejection member 400.

[0186] See also Fig.10 , the fourth in-position detection component 640 can also be connected to the driving device 200 accordingly. When the driving device 200 drives the transmission gear 410 to reset, the fourth in-position detection component 640 detects the second in-position signal of the second target boss 411b. When the second target boss 411b rotates to the position following the transmission gear 410 and the fourth in-position detection component 640 detects the second in-position signal, the fourth in-position detection component 640 controls the driving device 200 to stop the action, and the door lifting mechanism resets and waits for the next automatic door opening operation.

[0187] In some embodiments, the in-place detection device 600 may be directly connected to the driving device 200, and directly control the action of the driving device 200 according to the detection results of the third in-place detection component 630 and the fourth in-place detection component 640. For example, when the third in-place detection component 630 and the fourth in-place detection component 640 detect the first in-place signal and the second in-place signal, they may output a pulse signal to the driving device 200 to control the driving device 200 to implement the door opening operation and the reset operation.

[0188] In other embodiments, the in-place detection device 600 may also be connected to an upstream control unit of the driving device 200. When the first in-place signal and the second in-place signal are detected, the detection results are respectively fed back to the upstream control unit, and the upstream control unit controls the action of the driving device 200 based on the detection results.

[0189] In the initial state, the third in-position detection assembly 630 does not conflict with the first target boss 411a, the fourth in-position detection assembly 640 conflicts with the second target boss 411b, and the drive device 200 is on standby. When the door-pushing mechanism starts to push the door, the drive device 200 drives the ejection member 400 to rotate, the second target boss 411b loses its position, and the conflicting state with the fourth in-position detection assembly 640 is released, and the fourth in-position detection assembly 640 detects the state change; after the first target boss 411a follows the ejection member 400 to rotate to the position, it conflicts with the third in-position detection assembly 630, the fourth in-position detection assembly 640 detects the first in-position signal, and controls the drive device 200 to drive the ejection member 400 to reverse; after the second target boss 411b follows the ejection member 400 to reverse to the position, it conflicts with the fourth in-position detection assembly 640, the fourth in-position detection assembly 640 detects the second in-position signal, and controls the drive device 200 to drive the ejection member 400 to stop.

[0190] In some embodiments, the third in-position detection component 630 may include a second travel switch 631, which is matched and arranged on the track of the first target boss 411a and connected to the driving device 200, so that the second travel switch 631 is triggered after the first target boss 411a rotates to the position following the push-up member 400, and the second travel switch 631 outputs a trigger signal to control the driving device 200 to drive the push-up member 400 to reverse. The second travel switch 631 directly feedbacks and controls the action of the driving device 200 to form a control architecture with high response time efficiency, thereby improving the control accuracy of the automatic door-lifting operation of the door-lifting mechanism.

[0191] In some embodiments, in order to reduce the risk of interference between the second travel switch 631 and surrounding components such as the ejector 400, the second travel switch 631 and the ejector 400 can be spaced apart to maintain a certain distance; to this end, the third in-position detection component 630 can also include a second fork 632, which is used as a trigger medium to match and connect the second travel switch 631 and the first target boss 411a, so as to push the first fork 632 to trigger the second travel switch 631 after the first target boss 411a rotates into position.

[0192] In some embodiments, the second fork 632 can be rotatably set on the base 110, and one end of the second fork 632 is connected to the second travel switch 631, and the other end is matched and set on the trajectory of the first target boss 411a, so as to push the corresponding end of the second fork 632 after the first target boss 411a is in place, so that the second fork 632 is deflected to trigger the second travel switch 631.

[0193] In some embodiments, the arrangement position and triggering direction of the second travel switch 631 can be matched with the direction in which the first target boss 411a pushes the second fork 632, so that the second travel switch 631 can be stably triggered after being in place.

[0194] In some embodiments, the second fork 632 is a deflectable element. In order to maintain its position and posture so as to be stably and reliably triggered after the first target boss 411a is in place, a second tensioning member 633 may be connected between the second fork 632 and the base 110 to apply a first force to the second fork 632 so that the end of the second fork 632 is stably tightened on the contact portion of the second travel switch 631. When the first target boss 411a pushes against one end of the second fork 632, the other end of the second fork 632 is separated from the contact portion of the second travel switch 631 in the opposite direction of the first force, thereby triggering the first travel switch 631.

[0195] The structure of the fourth in-place detection component 640 may be equivalent to that of the third in-place detection component 630 , and is used to match and detect the position of the second target boss 411 b ; details thereof will not be repeated herein.

[0196] Figure 5 Shows Figure 1 A schematic diagram of the structure of a second top door mechanism in an electrical device; Figure 6 Shows Figure 5 A schematic diagram of the structure of the ejector member in the door ejection mechanism; Figure 7 Shows Figure 5 Schematic diagram of the structure of the push rod in the top door mechanism.

[0197] See also Figure 5 , Figure 6 and Figure 7 In some embodiments, the pushing parts 411 can be arranged adjacent to each other and connected in sequence to form an arc-shaped pushing surface 421, so that the arc surface between the two ends of the arc-shaped pushing surface 421 and the axial center distance of the rotating shaft 111 increase or decrease linearly.

[0198] In some embodiments, when the ejection member 400 rotates, the arcuate ejection surface 521 can directly contact the ejection push rod 500, and the ejection push rod 500 can be ejected from the arcuate ejection surface 421 to the end closest to the axis of the ejection member 400 until the arcuate ejection surface 421 to the end farthest from the axis of the ejection member 400, thereby completing the entire ejection operation.

[0199] See also Figure 5 and Figure 6 In some embodiments, the initial position of the end of the arc-shaped ejection surface 421 closest to the axis of the ejection member 400 can be set to abut against the push rod 500, so as to improve the response time to a certain extent and avoid the ejection member needing to rotate through the initial gap between the arc-shaped ejection surface 421 and the push rod 500, resulting in the initial ejection force not being applied to the push rod 500 under the condition of the minimum ejection force arm, resulting in a loss of ejection performance.

[0200] In some embodiments, the push member 400 may include a transmission gear 410 and a cam 420, wherein the transmission gear 410 is rotatably disposed on the base 110 and connected to the driving device 200 to rotate and transmit the driving force under the drive of the driving device 200. The cam 420 is connected to the transmission gear 410, and an arcuate push surface 421 is disposed on the cam 420, so that when the cam 420 rotates following the transmission gear 410, the arcuate push surface 421 smoothly pushes the push rod 500.

[0201] In some embodiments, considering that the part on the cam 420 that applies the pushing force is the arc-shaped pushing surface 421, the cam 420 can be set as an arc-shaped rod as a whole, and the arc-shaped pushing surface 421 is set on one side of the convex arc surface of the arc-shaped rod, thereby reducing the overall volume of the cam 420 to a certain extent and reducing the risk of interference with surrounding structures.

[0202] See also Figure 5 In some embodiments, the transmission gear 410 and the cam 420 are coaxially rotatably connected to the rotating shaft 111, and the axis of the rotating shaft 111 is set to the axis of the ejector 400. The cam 420 can also be directly formed on the disk surface of the transmission gear 410 to form a stacked form, which can reduce the installation plane occupied to a certain extent, realize miniaturized molding, and facilitate installation on electrical equipment such as refrigerators.

[0203] See also Figure 5 and Figure 7In some embodiments, the push rod 500 may include a rod body 510 and a supporting platform 560, wherein the rod body 510 is used to contact the pushing door body, and the supporting platform 560 is connected to the rod body 510 and is arranged below the cam 420 to stabilize the posture of the cam 420 during the process of the cam 420 pushing the push rod 500, limit the swing amplitude of one side of the base 110 of the cam 420, and ensure the pushing effect; on the other hand, it can also limit the amplitude of the local tilting of the push rod 500 to a certain extent, which also helps to maintain the pushing posture of the push rod 500.

[0204] In some embodiments, a receiving surface 551 may be provided on the push rod 500 to abut against the arcuate push-up surface 421. During the rotation of the push member 400, the arcuate push-up surface 421 may contact the pushing receiving surface 551 to push the push rod to move along a straight line. In addition, during the pushing process, the arcuate push-up surface 421 may have a certain displacement with the receiving surface 551, so as to adapt to the compatibility of the rotation track of the push member 400 and the straight line track of the push rod 500, thereby ensuring the smoothness of the pushing operation.

[0205] In some embodiments, the push rod 500 may further include a pushed bearing platform 550 , which is used to bear the thrust of the arc-shaped push-top surface 521 , and the bearing surface 551 may be specifically arranged at the connection between the pushed bearing platform 530 and the rod body 510 .

[0206] In some embodiments, the pushed support platform 550 may be protruded on the push rod 500 and higher than the support platform portion 560, forming a turning zone between the support platform portion 560 and the pushed support platform 550 for accommodating the cam 420, so that the cam 420 can stably push the push rod 500 in the turning zone, maintain the pushing posture, and limit the local tilting of the push rod, thereby maintaining the stability and reliability of the door-pushing operation of the door-pushing mechanism.

[0207] In some embodiments, in order to maintain the reliability of the abutment between the push rod 500 and the ejection member 400, a reset member 540 can be connected between the base 110 and the push rod 500 to continuously apply a reset force to the push rod 500 based on the base 110 to reset the push rod 500.

[0208] At the same time, the continuous resetting force can also tighten the push rod 500 and the ejection member 400, thereby preventing the push rod 500 from sliding freely, causing loss of position, and affecting the door ejection function.

[0209] See also Figure 5 and Figure 7 In some embodiments, the reset member 550 may be a spring, which forms an elastic reset force to drive the push rod 500 to move in the reset direction through elastic stretching or compression. A hook 541 may also be provided on the push rod 500 to fix the end of the spring.

[0210] See also Figure 5 and Figure 7 In some embodiments, in order to realize the linear movement of the push rod 500, a linear guide rail 112 can be set on the base 110, and a slide groove 560 can be set on the push rod 500, and the slide groove 560 can be slidably connected to the linear guide rail 112, so that the push rod 500 pushes the door body along a linear trajectory.

[0211] In some embodiments, a shock-absorbing sleeve 520 may be provided on the push-top end 510 to buffer the vibration of the push-top door and damage to the door body. The shock-absorbing sleeve 520 may be made of rubber or other materials with shock-absorbing, wear-resistant or lubricating properties.

[0212] See also Figure 5 In some embodiments, the driving device 200 may use a torque output mechanism to drive the push member 400 to rotate, so as to drive the push rod 400 to push the door. The driving device 200 may include a motor 210, a worm 220 and a gear set 230. The worm 220 is connected to the output shaft of the motor 210 and the gear set 230. The gear set 230 may mesh with the transmission gear 410 to convert and transmit torque.

[0213] See also Figure 5 and Figure 6 In some embodiments, in order to improve the accuracy of the top door operation, the top door mechanism may further include a third in-place detection component 630 and a fourth in-place detection component 640 .

[0214] The first in-position detection component 630 is connected to the driving device 200, and detects the first in-position signal of the first in-position detection part 411c provided on the transmission gear 410 to control the driving device 200 to stop the action. The fourth in-position detection component 640 is connected to the driving device 200, and detects the second in-position signal of the second in-position detection part 411d provided on the transmission gear 410 to control the driving device 200 to drive the transmission gear 410 to reverse and reset.

[0215] By matching the door push stroke with the rotation angle of the transmission gear 410, the first in-position detection part 411c and the second in-position detection part 411d are reasonably arranged on the disk of the transmission gear 410, so that when the second in-position detection part 411d rotates to the position and triggers the second in-position detection component 620, the driving device 200 drives the transmission gear 410 to reverse and rotate along the range direction, and the corresponding push rod 500 is pulled to reset under the action of the reset member 540; when the transmission gear 410 reverses to the point where the first in-position detection part 411c is in position and triggers the third in-position detection component 630, the driving device 200 stops moving and waits for the next push-up operation.

[0216] In some embodiments, the first in-position detecting portion 411 c and the second in-position detecting portion 411 d may be configured as bosses protruding from the disk surface of the transmission gear 410 .

[0217] In some embodiments, the third in-place detection assembly 630 may include a second travel switch 631 and a second fork 632. The middle portion of the second fork 632 is rotatably disposed on the base 110, one end of which is connected to the contact portion of the second travel switch 631, and the other end of which is matched with the track of the first in-place detection portion 411c, so as to push the second fork 632 after the first in-place detection portion 411c rotates to the in-place position, so as to trigger the second travel switch 631.

[0218] In order to ensure the stability of the connection between the second fork 632 and the contact part of the second travel switch 631, a second elastic tensioning member 633 can be connected between the second fork 632 and the base 110 to tighten the second fork 632 and connect its end to the contact part of the second travel switch 631, and quickly reset after the second fork 632 is moved, and abut against the contact part of the second travel switch 631.

[0219] Figure 8 The third embodiment of the present invention provides a schematic diagram of the structure of the door opening mechanism. Figure 8 In some embodiments, the top door mechanism provided may include a driving device 200, a clutch device 300, a transmission gear 410 and a cam 420; the transmission gear 410 is rotatably arranged on the base 110, and the cam 420 is connected to the transmission gear 410, and can follow the rotation of the transmission gear 410 around the rotating shaft 111. The driving device 200 is connected to the transmission gear 410 through the clutch device 300 to drive the transmission gear 410 to rotate, and can maintain or cut off the connection between the driving device 200 and the transmission gear 410 through the clutch device 300, so that when the top door mechanism is subject to external interference, the driving device 200 and the transmission gear 410 are disconnected to protect the reliability of the function and structure of the top door mechanism.

[0220] A plurality of push top portions 411 whose distances from the axis of the rotating shaft 111 are successively increased are arranged on the cam 420 in a set direction. When the driving device 200 drives the transmission gear 410 to rotate, the plurality of push top portions 411 whose distances from the axis of the transmission gear 410 are successively increased correspond to push the door body in order to push the door body open. Since the driving torque is the product of the force arm and the driving force, when the power of the driving device 200 remains stable, the force arm of the push top portion 411 closer to the axis of the transmission gear 410 when pushing the door body is correspondingly smaller, and the pushing force of the cam 420 to push the door body is correspondingly greater, so that the position of the push top portion 411 on the cam 420 can be reasonably set to push the door body, so as to obtain a relatively large force to push the door, meet the requirements of breaking through the door opening resistance of electrical equipment such as refrigerators, and realize automatic door opening stably and reliably.

[0221] On the other hand, after the pushing portion 411 having a relatively close distance to the axis of the transmission gear 410 starts to push the door, the pushing portions 421 that push the door can push the door in the direction of increasing distance to the axis of the transmission gear 410. Since the linear velocity of the rotating element is the product of the rotation radius and the rotation speed, when the rotation speed of the transmission gear 410 driven by the driving device 200 remains stable, the rotation radius of the pushing portions 411 that push the door in turn increases accordingly, and the linear velocity at the contact point between the pushing portion 411 and the door also increases accordingly, so that the speed of pushing the door is also greater, that is, the door can be pushed open at a high speed.

[0222] Therefore, the door-pushing mechanism drives the cam 420 to rotate around the axis of the transmission gear 410 through the transmission gear 410 that rotates under the drive of the driving device 200, and can use multiple pushing tops with successively increasing distances from the axis of the transmission gear 410 to push up the door body in sequence, so that it can break through the door opening resistance with a large initial door-pushing force, push open the door body, and then further push open the door body at high speed for automatic door opening operation, and the operation process is convenient, efficient, stable and safe; it can also maintain and cut off the connection between the driving device and the transmission gear through the clutch device, thereby reducing the adverse effects of external interference on the door-pushing mechanism and maintaining the reliability of the structure and function of the door-pushing mechanism.

[0223] See also Figure 1 In some embodiments, multiple pushing top parts 411 can be continuously connected to form an arc-shaped pushing top surface 421, and the distance from the arc-shaped pushing top surface 421 to the axis center of the transmission gear 410 increases linearly in sequence, so that the door body can be pushed up smoothly in a surface contact manner, the stability of the door body's rotation posture can be maintained, the vibration amplitude of the door body can be suppressed, and the problem of violent vibration can be avoided; at the same time, vibration noise can also be suppressed.

[0224] In some embodiments, the cam 420 can be configured as an arc rod shape, and the arc push-up surface 421 can be configured on the convex arc side of the arc rod shape, so that when the transmission gear 410 rotates, the convex arc side of the cam 420 faces the door body and continuously contacts the push-up door body.

[0225] In some embodiments, the cam 420 and the transmission gear 410 can be coaxially arranged to maintain the consistency of the rotational speed of the transmission gear 410 and the cam 420, so that the rotational speeds of each pushing portion 411 are consistent, maintaining a relatively stable speed of the pushing door body and avoiding excessive acceleration.

[0226] In some embodiments, the transmission gear 410 and the cam 420 can be sleeved on the rotating shaft 111, and can be connected to the rotating shaft 111 through a locking member, and blocked at the top of the cam 420 to limit the amplitude of the transmission gear 410 and the cam 420 in the direction of disengaging from the rotating shaft 111, thereby maintaining the function of the top door mechanism and the stability of the structure.

[0227] In some embodiments, the position of the arc-shaped pushing surface 421 on the cam 420 can be matched and set so that in the direction away from the axis of the transmission gear 410, the distance between the arc-shaped pushing surface 421 and the door body gradually increases, so that the end of the arc-shaped pushing surface close to the axis of the transmission gear 410 is closest to the door body, and the end away from the axis of the transmission gear 410 is farthest from the door body. Therefore, in the process of the cam 420 following the rotation of the transmission gear 410, the pushing force arm gradually increases, the initial door pushing force is relatively large, and then the door body is pushed up at high speed.

[0228] In some embodiments, the setting position and the rotation direction of the cam 420 can also be matched and set, so that the arc-shaped push-up surface 421 gradually approaches the rotation center of the door body in the process of pushing the door body, so that the door body can be pushed open to a larger opening. When the length of the arc-shaped push-up surface 421 is constant, the closer the arc-shaped push-up surface 421 is to the rotation center of the door body in the process of pushing the door body, the larger the angle at which the door body can be pushed open. Therefore, the distance from the arc-shaped push-up surface to the rotation center of the door body can be reasonably set to obtain a larger opening adjustment range. The curvature of the arc-shaped push-up surface 421 can also be matched and set to obtain a larger opening adjustment range.

[0229] In some embodiments, the cam 410 can be arranged on the disk surface of the transmission gear 410. By stacking the two, the occupied space in the lateral plane can be reduced to a certain extent, thereby reducing the overall width of the top door mechanism and improving the installation adaptability of the top door mechanism.

[0230] In some embodiments, a support rail 114 is also provided on the base 110, and the support rail 114 can be arranged below the cam 420 to form a limiting support structure; when the downward tilt of the head end of the cam 420 is too large, the limiting support structure can be used to slide the support cam 420, thereby maintaining the rotation posture of the cam and stably extending the base 110 to push the door body.

[0231] In some embodiments, a lubricating material layer may be provided on the supporting surface of the supporting rail 114 to limit the wear of the cam 420 and ensure the structural strength and reliability of the cam 420 .

[0232] In some embodiments, the support height of the support rail 114 can be comparable to the top surface height of the transmission gear 410 , and the support rail 114 and the transmission gear 410 can be spaced apart so that the support rail 114 can cover the travel of the cam 420 before it rotates out of the range of the base 110 .

[0233] The support rail 114 can also be configured as a long strip rail, and the extension direction of the support rail 114 can be configured as a direction of pushing open the door body.

[0234] In some embodiments, the drive device 200 may use a torque output mechanism to drive the transmission gear 410 to rotate, so as to drive the cam 420 to push the door. The drive device 200 may include a motor 210, a worm 220 and a gear set 230, wherein the worm 220 is connected to the output shaft of the motor 210 and the gear set 230, and the gear set 230 is connected to the clutch device to convert and transmit torque.

[0235] Fig.11 Shows Figure 1 A schematic diagram of the structure of a sixth top door mechanism in an electrical device; Fig.12 Shows Fig.11 A schematic diagram of the structure inside the installation cavity of the top door mechanism; Fig.13 Shows Fig.11 A schematic diagram of the installation state of the top door mechanism; Fig.14 Shows Fig.13 A cross-sectional view of Fig.15 Shows Fig.11 A structural schematic diagram of the matching state of the base and the upper cover of the top door mechanism.

[0236] Combination Fig.11 , Fig.12 , Fig.13 , Fig.14 and Fig.15 In some embodiments, in order to adapt to the humid environment inside the electrical equipment and maintain the functional reliability and stability of the top door mechanism 10, a sealing cover 700 can be added to the above-mentioned top door mechanism 10 to match and connect to the main body 11, thereby improving the waterproof and moisture-proof performance of the top door mechanism 10.

[0237] The door ejection mechanism 10 may include a base 110, an upper cover 120, a push-up member 400 and a driving device 200; the base 110 and the upper cover 120 may be matched and connected to form a complete shell 100, and an installation cavity 130 is formed inside the shell 100 for accommodating the installation of the driving device 200 and the push-up member 400.

[0238] The push-up member 400 can be movably arranged on the base 110 and can extend out of the mounting cavity 130 of the housing 100 to push up the door body. The driving device 200 can also be arranged in the mounting cavity 130 and connected to the push-up member 400, so that the driving device 200 can drive the push-up member 400 to extend out of the mounting cavity 130, push open the door body, and realize automatic door opening.

[0239] The sealing cover 700 is connected and installed on the main body 11, thereby forming a first sealing cavity 730 as a waterproof and moisture-proof sealing structure. The housing 100 and the driving device 200 and the ejection member 400 therein are all arranged in the first sealing cavity 730, so that the sealing cover 700 can be used to isolate and protect the driving device 200 and the ejection member 400, so as to improve the moisture-proof and waterproof performance of the driving device 200 and the ejection member 400.

[0240] In order to take into account both the door opening operation and the sealing performance of the ejector 400, a sealing window 711 can be provided on the sealing cover 700 to communicate the first sealing cavity 730 with the external space of the sealing cover 700, so that the ejector 400 can extend out of the first sealing cavity 730 through the sealing window 711 to smoothly implement the door opening operation. At the same time, the sealing window 711 can adapt to the action process of the ejector to achieve dynamic sealing.

[0241] The door-lifting mechanism provided in the embodiment of the present application is provided with a housing formed by a base and an upper cover to accommodate and install a driving device and a push-up member, so that the driving device drives the push-up member to push the door body based on the housing to realize automatic door opening. At the same time, a sealing cover is connected and installed on the main body to form a first sealing cavity to accommodate the housing and the driving device and the push-up member therein, thereby improving the waterproof and moisture-proof performance of the door-lifting mechanism; and a sealing window for sealing the push-up member 400 is further provided on the sealing cover to take into account both the automatic door opening operation and the dynamic sealing performance, thereby improving the sealing performance of the door-lifting mechanism and the stability and reliability of the automatic door opening function.

[0242] Fig.16 Shows Fig.11 A schematic diagram of the structure of the sealing cover in the top door mechanism; Fig.11 and Fig.16 In some embodiments, the sealing cover 700 may include a cover body 710 and a connecting portion 720. The cover body 710 and the main body 11 form a first sealed cavity 730 to seal the shell 100 inside; the connecting portion 720 is arranged around the cover body 710 and connected to the cover body 710, serving as an installation and connection structure of the cover body 710, and is connected to the main body 11, so that the cover body 710 is stably installed on the main body 11.

[0243] In some embodiments, the cover 710 may be configured as a cover having a cavity, so that a first sealed cavity 730 can be formed when the cover 710 is installed on the main body 11. The shape of the cover 710 may be adapted according to the shape of the housing 100, and the specifications of the cover 710 may be set to be larger than the specifications of the housing 100, so that the volume of the cover 710 may be smaller, which may reduce the space required for installation in the main body 11 to a certain extent, facilitate installation in the main body 11, and reduce the risk of interference with other structures in the main body 11.

[0244] In some embodiments, the connection portion 720 can be configured to be in a ring frame shape, matched and connected around the cover body 710, forming an installation connection structure around the cover body 710, so that the cover body 710 can be stably matched and installed on the main body 11, maintain a stable connection state, maintain the stability of the first sealing cavity 730, and thus maintain the stability and reliability of the sealing performance.

[0245] Fig.17 Shows Fig.16 Another perspective structural diagram of the sealing cover in the top door mechanism; combined with Fig.16 and Fig.17 In some embodiments, a connection hole 721 may be opened on the connection portion 720, and a locking member 722 may be configured to pass through the connection hole 721, and the locking member 722 is connected to the main body 11, so that the connection portion 720 is stably connected to the main body 11, thereby achieving stable installation of the cover body 710.

[0246] In some embodiments, in order to improve the sealing performance at the connection hole 721, a sealing sticker 723 may be provided at the connection hole 721 to seal the installation gap.

[0247] In some embodiments, the sealing sticker 723 can be made of a flexible material sheet, and is adhered to the connecting portion 720 by an adhesive material on one side of the flexible material sheet close to the connecting hole 721, and entirely covers the sealing connecting hole 721 and its surrounding area to achieve complete sealing.

[0248] In some embodiments, a recessed groove 721a may be provided on the connecting portion 720, and the connecting hole 721 may be disposed in the recessed groove 721a, so that the end portion of the locking member 722 may be partially or completely embedded in the recessed groove 721a, thereby reducing the volume of the surface protruding from the connecting portion 720, thereby being able to keep the sealing sticker attached and sealed outside the connecting hole 721 in a relatively flat state, thereby improving the sealing performance.

[0249] In some embodiments, the locking member 722 may be a fastener such as a screw or a head bolt. When installed in the connecting hole 721, the screw head may be embedded in the recessed groove 721a.

[0250] Combination Fig.11 and Fig.17 In some embodiments, in order to further reduce the matching gap between the cover body 710 and the main body 11 to improve the sealing performance, a sealing gasket 750 may be provided at the connection between the cover body 710 and the side of the connecting portion 720 close to the main body 11. When the connecting portion 720 is installed on the main body 11, the sealing gasket 750 can fill the gap between the cover body 710 and the connecting portion 720 and the main body 11, thereby further maintaining the stability and reliability of the first sealed cavity 730 and improving the sealing performance.

[0251] In some embodiments, the connecting portion 720 can be integrally provided with the cover body 710 and can be provided as a ring frame, so that the gap between the cover body 710 and the main body 11 can be extended to between the connecting portion 720 and the main body 11, and the connecting portion 720 is stably pressed onto the main body 11 by the locking member 722, and the gap between the sealing cover 700 and the main body 11 is sealed by surface contact, which can further improve the sealing performance to a certain extent.

[0252] In some embodiments, the sealing gasket 750 can be configured as a ring-frame-shaped gasket that matches the shape of the annular connecting portion 720, and is disposed on the side of the connecting portion 720 close to the main body 11, so that when the connecting portion 720 is installed on the main body 11, the gap between the connecting portion 720 and the main body 11 is stably filled to improve the sealing performance.

[0253] In some embodiments, during the operation of the ejection mechanism, in order to maintain the stability of the dynamic sealing performance between the ejection member 400 and the sealing window 711, a first sealing ring 760 may be provided in the sealing window, and the first sealing ring 760 is sleeved on the ejection member 400, so that during the movement of the ejection member 400, the gap between the ejection member 400 and the sealing window 711 is filled to achieve dynamic sealing.

[0254] In some embodiments, the first sealing ring 760 may be made of an elastic material, and can adapt to the gap between the first sealing ring 760 and the sealing window 711 during the movement of the ejection member 400 by deformation.

[0255] In some embodiments, the housing 100 can be mounted and fixed on the main body 11, and the door body can be pushed up based on the main body 11. The base 110 can be connected to the main body 11 through fasteners.

[0256] Combination Fig.12 In some embodiments, the push member 400 includes a transmission gear 410 and a push rod 500, wherein the transmission gear 410 is rotatably disposed on the base 110, the push rod 500 is slidably disposed on the base 110, and the transmission gear 410 is connected to the push rod 500 and the driving device 200, and can rotate under the drive of the driving device 200, and drive the push rod 500 to move along a set trajectory to extend the sealing cover 700 to push the door body.

[0257] See also Fig.12 , Fig.15 and Fig.17 In some embodiments, in order to maintain the dynamic sealing reliability between the ejector 400 and the sealing window 711, a cylindrical ejector rod 570 may be provided on the push rod 500, the sealing window 711 may be provided in a circular shape, and the first sealing ring 760 may be provided in a circular shape, thereby ensuring the reliability of the contact seal.

[0258] See also Fig.17In order to reduce the damage of the top rod 570 to the door body, a shock-absorbing sleeve 520 can be set at the top door end of the top rod 570; shock-absorbing rubber sleeves, rubber pads, etc. can be used to buffer impact and vibration and reduce noise.

[0259] Fig.18 Shows Figure 1 A schematic diagram of the explosion state structure of the seventh top door mechanism in the electrical equipment; Fig.19 Shows Fig.18 A schematic diagram of the structure of the sealing cover in the top door mechanism; Fig. 20 Shows Fig.18 A schematic diagram of the assembly state structure of the top door mechanism in FIG. Fig.21 Shows Fig. 20 A cross-sectional view of the top door mechanism in FIG. Fig. 22 Shows Fig.18 Schematic diagram of the assembly of the sealing cover, transmission member and ejection member in the door ejection mechanism.

[0260] See also Fig.18 , Fig.19 , Fig. 20 , Fig.21 and Fig. 22 In some embodiments, in order to realize the function of automatically pushing up the door body of the door lifting mechanism 10, the door lifting mechanism 10 may include a base 110, a driving device 200, a transmission member 800 and a pushing member 400; the driving device may be arranged on the base 110, and the driving device 200 is connected to the pushing member 400 through the transmission member 800 to drive the pushing member 400 to push up the door body.

[0261] In order to realize the waterproof and sealing function of the top door mechanism 10, the top door mechanism 10 may further include a sealing cover 700, which is matched and connected to the base 110 to form a second sealed cavity 740. The driving device 200 may be disposed in the second sealed cavity 740, and the second sealed cavity 740 is used to isolate the driving device 200 from the external environment, thereby protecting the electrical components in the driving device 200, improving the waterproof and moisture-proof performance, and ensuring the stability and reliability of its functions and performances.

[0262] Since the ejection member 400 needs to contact the door body when pushing the door body, it will be exposed in the installation space. In order to take into account both the sealing protection of the driving device 200 and the door-pushing operation of driving the ejection member 400, the ejection member 400 can be arranged outside the second sealing cavity 740, and a sealing window 711 can be opened on the sealing cover 700, and the transmission member 800 is inserted into the sealing window 711 to connect the driving device 200 and the ejection member 400 respectively; thereby, the sealing cover 700 and the sealing window 711 can be used in conjunction with the transmission member 800 to separate the door-pushing mechanism 10 into two parts, implement sealing protection for the driving device 200 and the electrical components therein, and take into account the stability of the door-pushing function of the driving device 200 driving the ejection member 400.

[0263] The top door mechanism provided in the embodiment of the present application utilizes the cooperation of the sealing cover and the base to form a first sealing cavity to separate and protect the device containing useful electrical components in the top door mechanism, such as a driving device, and the ejection member that needs to be exposed to the installation environment during the top door operation is arranged outside the first sealing cavity, and the driving device and the ejection member are connected and sealed by utilizing the cooperation of the transmission member and the sealing window opened on the sealing cover, which improves the waterproof performance as a whole and takes into account the smoothness of the top door operation, thereby maintaining the stability and reliability of the function and performance of the top door mechanism.

[0264] See also Fig.21 and Fig. 22 In some embodiments, the base 110 and the sealing cover 700 may be connected in a buckling manner to enclose the second sealed cavity 740. The two may also be connected together by a fastener to maintain a stable buckling state of the two and maintain the stability of the second sealed cavity 740.

[0265] Fig.28 Shows Figure 1 Structural diagram of the base in the top door mechanism; see Fig.19 and Fig.28 In some embodiments, in order to improve the sealing performance at the connection between the sealing cover 700 and the base 110, an annular first stop 112 may be provided on the base 110, and an annular second stop 712 may be provided on the sealing cover 700, and the first stop 112 and the second stop 712 are in an adaptable coupling form, so that when the sealing cover 700 is buckled on the base 110, the first stop 112 and the second stop 712 match and couple to form a zigzag connection area, thereby maintaining a relatively large contact surface and a tortuous seam gap to obtain better contact sealing performance.

[0266] In some embodiments, the first stop 112 and the second stop 712 may be polished, or sealing strips or sealing rings may be provided to further improve the sealing performance.

[0267] See also Fig.19 and Fig.21 In some embodiments, a second sealing ring 830 may be sleeved on the transmission member 800, and the second sealing ring 830 may be set in the sealing window 711 to fill the gap between the transmission member 800 and the inner wall 711a of the sealing window; and dynamic contact sealing of the second sealing cavity 740 may be achieved during the rotation of the transmission member 800.

[0268] Fig.23 Shows Fig.18 A schematic diagram of the structure of the transmission parts in the top door mechanism; Fig. 22 and Fig.23 In some embodiments, a fixing groove 811 may be provided on the transmission member 800, so that the second sealing ring 830 may be sleeved in the fixing groove 811, and the fixing groove 811 may be used to stably maintain the position of the second sealing ring 830, so as to prevent the second sealing ring 830 from sliding out of position along the transmission member 800 during rotation, thereby deteriorating the sealing state. On the other hand, when the second sealing ring 830 is embedded between the fixing groove 811 and the inner wall 711a of the sealing window, the groove shape of the fixing groove 811 can provide a bent contact sealing area, so that the second sealing ring 830 contacts multiple surfaces of the fixing groove 811 through extrusion deformation, which can enhance the sealing effect to a certain extent.

[0269] In some embodiments, in order to maintain a stable connection of the ejector member 400 , an axial support 812 may be provided on the transmission member 800 , and the ejector member 400 is connected to the axial support 812 to be stably installed outside the second sealing cavity 740 , and the door body is pushed up under the drive of the transmission member 800 .

[0270] Fig.24 Shows Fig.18 A schematic diagram of the structure of the transmission wheel in the top door mechanism; Fig. 22 , Fig.23 and Fig.24 In some embodiments, a connecting shaft 812a protruding from the supporting surface can be provided on the axial support platform 812, and an axial hole 412 can be opened on the ejecting member 400, so that the ejecting member 400 can be stably placed on the axial support platform 812, and can also be stably sleeved on the connecting shaft 812a through the axial hole 412, thereby achieving support and transmission fixation of the ejecting member 400.

[0271] In some embodiments, matching flat keys can be provided on the connecting shaft 812a and the shaft hole 412, so that when the ejecting member 400 is sleeved on the connecting shaft 812a, the flat keys can be used to match and fix it, and the ejecting member 400 can also stably follow the rotation of the transmission member 800 to stably and reliably implement the door lifting operation.

[0272] See also Fig.18 , Fig. 20 and Fig.21 In some embodiments, in order to improve the anti-interference performance of the top door mechanism and reduce the influence of interference factors such as debris in the installation environment, the top door mechanism 10 may also include an upper cover 120, and the upper cover 120 is matched and connected to the sealing cover 700 to protect the push member 400 from the influence of external interference factors and maintain the reliability of the action of the push member 400.

[0273] Fig.29 Shows Fig.18 A schematic diagram of the structure of the upper cover in the top door mechanism; Fig.21 and Fig.29 In some embodiments, considering that there is a certain height difference between the transmission member 800 and the ejection member 400, the ejection member 400 is prone to swing or fluctuate in posture, which affects the door opening operation. A shaft cylinder 121 may be provided on the side of the upper cover 120 close to the connecting shaft 812a at a position corresponding to the connecting shaft 812a, and the height of the connecting shaft 812a may be greater than the depth of the shaft hole 412, so that the connecting shaft 812a can pass through the shaft hole 412 and can be embedded in the shaft cylinder 121, so that the position and posture of the transmission member 800 are stabilized by using the sealing window 711 and the shaft cylinder 121, thereby maintaining the stability of the action posture of the ejection member 400.

[0274] In some embodiments, the push-up member 400 can rotate to push up the door body to achieve automatic door opening operation. To this end, the transmission member 800 can be rotated and inserted into the sealing window 711 to transmit the driving force of the driving device 200, drive the push-up member 400 to push up the door body to achieve door opening. Accordingly, the shape of the sealing window 711 should be configured to adapt to the rotation of the transmission member 800, so as to take into account the rotation and sealing performance of the transmission member 800.

[0275] See also Fig.23 In some embodiments, the transmission member 800 may include a transmission shaft 810 and a connecting gear 820. The transmission shaft 810 is rotatably inserted into the sealing window 711, and the connecting gear 820 is rotatably disposed on the base 110. The transmission shaft 810 is coaxially connected to the connecting gear 820. The connecting gear 820 is also connected to the driving device 200, so that the driving device 200 can drive the connecting gear 820 to rotate to drive the transmission shaft 810 to rotate, and the transmission shaft 810 further drives the ejecting member 400 to rotate to eject the door body.

[0276] The fixing groove 811 can be set as an annular groove opened on the circumferential surface of the transmission shaft 810, the second sealing ring 830 can also be set as a circle, and the corresponding sealing window 711 can also be set as a circular hole passing through the sealing cover 700, so as to maintain a stable seal between the transmission shaft 810 and the sealing window 711 through matching of the circular shape.

[0277] See also Fig.21 , Fig. 22 and Fig.28 In some embodiments, in order to improve the stability of the rotational posture of the connecting gear 820, a rotating shaft 111 may be provided on the base 110, and a shaft groove 822 may be provided on the connecting gear 820 accordingly, and the rotating shaft 111 and the shaft groove 822 are consistent with the axis of the connecting gear 820. In the assembled state, the rotating shaft 111 is embedded in the shaft groove 822, so that the connecting gear 820 is rotatably connected to the base 110.

[0278] See also Fig.19 , Fig.21 and Fig. 22 In some embodiments, in order to improve the sealing performance between the transmission shaft 810 and the sealing window 711, a sealing shaft cylinder 711b can be further provided on the side of the sealing cover 700 close to the base 110, and the inner cylinder radius of the sealing shaft cylinder 711b is consistent with the inner diameter of the sealing window 711, and the inner wall of the sealing window 711 is smoothly connected with the inner wall of the sealing shaft cylinder 711b, thereby expanding the sealing contact surface between the second sealing ring 830 and the sealing window 711, so that when the transmission shaft 810 moves axially, it can still maintain good sealing performance and maintain the sealing reliability of the second sealing cavity 740.

[0279] In some embodiments, the number of the fixing grooves 811 can be set to be multiple, and the number of the second sealing rings 830 can also be set to be multiple accordingly, so as to form a multi-level seal between the sealing shaft cylinder 711b and the transmission shaft 810 to improve the sealing performance.

[0280] See also Fig.21 and Fig. 22 In some embodiments, the length of the sealing shaft cylinder 711b can be matched with the installation height of the connecting gear 820, so that the end of the sealing shaft cylinder 711b is close to the connecting gear 820, and only a certain gap is reserved to ensure the smooth rotation of the connecting gear 820. At the same time, the connecting gear 820 can be restricted from moving along the side close to the sealing cover 700 to maintain the rotation posture and position of the connecting gear 820; the axial movement of the transmission shaft 810 can also be synchronously restricted, so as to maintain the stability of the door-pushing posture and position of the ejector 400.

[0281] Fig.29 Shows Fig.18 A schematic diagram of the structure in which the top door mechanism is assembled to the main body; Fig.30 Shows Fig.29 A cross-sectional view of the local structure in which the top door mechanism is assembled into the main body. Fig.19 , Fig.29 and Fig.30In some embodiments, the sealing cover 700 can also be connected to the main body 11 to realize the installation of the top door mechanism 10, and a third sealed cavity 770 can be formed between the sealing cover 700 and the main body 11, and the base 110 is arranged in the third sealed cavity 770, so that the base 110 is sealed and protected in the third sealed cavity 770, thereby forming a second-level sealing protection for the driving device 200, further improving the sealing protection performance.

[0282] See also Fig. 20 , Fig.21 and Fig.30 In some embodiments, in order to form the third sealed cavity 770, the sealing cover 700 may include a cover body 710 and a connecting portion 720. The cover body 710 is matched and snapped on the base 110 to form the second sealed cavity 740, and the sealing window 711 is also provided on the cover body 710; the connecting portion 720 is arranged around the cover body 710 and can be connected to the main body 11, and the third sealed cavity 770 is surrounded by the cover body 710, the connecting portion 720 and the main body 11.

[0283] In some embodiments, the connection portion 720 can be configured to be in a ring frame shape, matched and connected around the cover body 710, forming an installation connection structure around the cover body 710, so that the cover body 710 can be stably matched and installed on the main body 11, maintain a stable connection state, maintain the stability of the sealed cavity 730, and thus maintain the stability and reliability of the sealing performance.

[0284] See also Fig.18 , Fig.19 , Fig.26 and Fig. 27 In some embodiments, a connection hole 721 may be opened on the connection portion 720, and a locking member 722 may be configured to pass through the connection hole 721, and the locking member 722 is connected to the main body 11, so that the connection portion 720 is stably connected to the main body 11, thereby achieving stable installation of the sealing cover 700.

[0285] In some embodiments, in order to improve the sealing performance at the connection hole 721, a sealing sticker 723 may be provided at the connection hole 721 to seal the installation gap.

[0286] In some embodiments, the sealing sticker 723 can be made of a flexible material sheet, and is adhered to the connecting portion 720 by an adhesive material on one side of the flexible material sheet close to the connecting hole 721, and entirely covers the sealing connecting hole 721 and its surrounding area to achieve complete sealing.

[0287] In some embodiments, a recessed groove 721a may be provided on the connecting portion 720, and the connecting hole 721 may be disposed in the recessed groove 721a, so that the end portion of the locking member 722 may be partially or completely embedded in the recessed groove 721a, thereby reducing the volume of the surface protruding from the connecting portion 720, thereby being able to keep the sealing sticker attached and sealed outside the connecting hole 721 in a relatively flat state, thereby improving the sealing performance.

[0288] In some embodiments, the locking member 722 may be a fastener such as a screw or a head bolt. When installed in the connecting hole 721, the screw head may be embedded in the recessed groove 721a.

[0289] See also Fig.18 In some embodiments, in order to further reduce the matching gap between the connection part 720 and the main body 11 to improve the sealing performance, a sealing gasket 730 may be provided at the connection between the side of the connection part 720 close to the main body 11 and the cover body 710. When the connection part 720 is installed on the main body 11, the sealing gasket 730 can fill the gap between the cover body 710 and the connection part 720 and the main body 11, thereby further maintaining the stability and reliability of the third sealing cavity 770 and improving the sealing performance.

[0290] In some embodiments, the connecting portion 720 can be integrally provided with the cover body 710 and can be provided as a ring frame, so that the gap between the cover body 710 and the main body 11 can be extended to between the connecting portion 720 and the main body 11, and the connecting portion 720 is stably pressed onto the main body 11 by the locking member 722, and the gap between the sealing cover 700 and the main body 11 is sealed by surface contact, which can further improve the sealing performance to a certain extent.

[0291] In some embodiments, the sealing gasket 730 can be configured as a ring-frame-shaped gasket that matches the shape of the annular connecting portion 720, and is disposed on the side of the connecting portion 720 close to the main body 11, so that when the connecting portion 720 is installed on the main body 11, the gap between the connecting portion 720 and the main body 11 is stably filled to improve the sealing performance.

[0292] See also Fig.18 and Fig.26 In some embodiments, the push member 400 may include a transmission wheel 410 and a push rod 500; the shaft hole 412 is opened on the transmission wheel 410, the push rod 500 is slidably set on the sealing cover 700, and the push rod 500 is connected to the transmission wheel 410, so that when the transmission wheel 410 follows the rotation of the transmission member 800, the push rod 500 pushes the door body to realize the automatic door opening operation.

[0293] See also Fig.24 , Fig.25 and Fig.26In some embodiments, a plurality of pushing parts 411 whose axial distances from the driving wheel 410 increase successively can be arranged on the driving wheel 410, and a pushing support 512 is correspondingly arranged on the pushing rod 500 as a pushed part, so that the pushing support 512 can be pushed in sequence by the plurality of pushing parts 411 to push the pushing support 512 to move the pushing rod 500.

[0294] In some embodiments, considering that the initial door opening resistance of the door body of an electrical appliance such as a refrigerator is large, the resistance decreases rapidly after being pushed open to a certain angle, and vigorously pushing the door body throughout the entire process will increase the safety risk of opening the door; for this reason, the pushing portion 411 can be convexly arranged on the disk surface of the transmission wheel 410, and arranged at intervals along the circumference of the connecting shaft 812a, wherein the distances from the plurality of pushing portions 411 to the axis center of the connecting shaft 812a increase successively along the circumference of the rotating shaft of the transmission wheel 410, so that the force arm of the pushing force of each pushing portion 411 when pushing the pushing support 512 The length increases successively; when the power output by the driving device 200 is basically the same, the torque output to the pushing member 400 is also basically the same. Since the torque is the product of the lever arm and the force, when the lever arm is minimum, the pushing force acting on the pushing support 512 is maximum; when pushing the door body, one of the multiple pushing parts 411 closest to the axis of the rotating shaft of the transmission connecting shaft 812a can be pushed against the pushing support 512 first to obtain the relatively maximum pushing force, so as to stably and reliably break through the door opening resistance, reduce the difficulty of door opening, and improve the door opening efficiency.

[0295] Since the distances from the multiple pushing parts 411 to the axis center of the connecting shaft 812a are different, the pushing platform 512 can also be set to be multiple, and the distances from the multiple pushing platforms 512 to the axis center of the connecting shaft 812a are correspondingly increased to correspond to the multiple pushing parts 411. Therefore, in the process of the transmission wheel 410 rotating the pushing rod 500, the multiple pushing parts 411 push the corresponding pushing platforms 512 in turn, thereby continuously pushing up the door body.

[0296] In the process that the multiple pushing parts 411 push the pushing platform 512 in sequence along the circumferential direction of the connecting shaft 812a, the pushing force arm increases in sequence and the pushing force decreases accordingly, thereby avoiding the safety risks of excessive continuous pushing force, over-accelerating the pushing door body, causing the door body to collide with the surrounding people or environment, and causing severe vibration.

[0297] At the same time, when the output power of the driving device 200 is relatively stable, the rotational speed of the transmission wheel 410 is also correspondingly stable, and when the linear speed of the rotating part is equal to the product of the rotational speed and the rotational radius, the linear speed at each pushing top part 411 is different, and as the axial distance to the connecting shaft 812a increases, the linear speeds of the multiple pushing top parts 411 along the circumference of the connecting shaft 812a increase successively, and the pushing speed of the push rod 500 also increases accordingly, that is, the door body can be pushed up at high speed and the door body can be quickly pushed open, achieving the effect of convenient and efficient door opening.

[0298] In some embodiments, the rotation and pushing direction of the transmission wheel 410, the arrangement direction of the pushing parts 411, and the pushing direction of the push rod 500 can be matched and set to take into account the effects of efficient door pushing function and convenient installation. In the process of automatic door opening, in the direction of the transmission wheel 410 rotating to push the push rod 500 to push the door body, the distances of the multiple pushing parts 411 to the axis of the connecting shaft 812a can be increased in sequence; that is, the direction of the transmission wheel 410 rotating to push the push rod 500 to push the door body is set so that the pushing parts 411 close to the axis of the connecting shaft 812a among the multiple pushing parts 411 relative to the pushing platform 512 on the push rod 500 first push the pushing platform 512, and then the pushing parts 411 along the direction of increasing distance to the axis of the connecting shaft 812a are connected to the corresponding pushing platform 512 on the push rod 500 in sequence until the push rod 500 reaches the set maximum stroke position.

[0299] See also Fig. 27 In some embodiments, the driving device 200 may include a motor 210, a worm 220 and a gear set 230. The worm 220 is connected to the output shaft of the motor 210 and is connected to the gear set 230, and the gear set 230 is connected to the transmission wheel 410 to simplify the transmission structure.

[0300] See also Fig.26 In some embodiments, in order to maintain the stability of the pushing operation, the moving trajectory of the push rod 500 can be set to a straight line, that is, the door body is pushed up along a straight line.

[0301] In some embodiments, in order to maintain the stability of the abutment between the pushing platform 512 and the pushing end portion 411, a reset member 540 can be connected between the push rod 500 and the base 110. Based on the base 110, a reset restoring force is continuously applied to the push rod 500 so that the push rod 500 can be reset under the action of the restoring force of the reset member 540.

[0302] Under the action of the restoring force, a certain degree of pressure is always maintained between the pushing support platform 512 and the pushing portion 411, so as to keep the two in stable contact and ensure the stability of the pushing state.

[0303] See also Fig.23 and Fig. 27 In some embodiments, the door lifting mechanism 10 is further provided with an in-position detection device 600 connected to the driving device 200 to detect a rotation in-position signal of the connecting gear 820 and control the action of the driving device 200 .

[0304] In some embodiments, the in-position detection device 600 can detect the in-position signal of the third position detection portion 821 on the connecting gear 820 to determine the in-position status of the ejector 400 and control the driving device 200 to stop the action.

[0305] In some embodiments, the third position detection portion 821 may be a structure such as a cylindrical pin protruding from the connecting gear 820 .

[0306] In the initial state, the in-position detection assembly 600 contacts the third-position detection unit 821, and the drive device 200 is on standby. When the upstream control signal indicates automatic door opening, the drive device 200 drives the push rod 500 to push the door body to the position, and all the push-top parts 411 do not contact the push rod 500. The push rod 500 is reset under the action of the reset member 540. During the process, the third-position detection unit 821 rotates out of position, and the detection signal state of the in-position detection device 600 jumps until the third-position detection unit 821 resets and triggers the in-position detection device 600, and the drive device 200 stops, and the door-pushing mechanism is on standby.

[0307] See also Fig. 27 In some embodiments, the in-position detection device 600 may include a first travel switch 621, a first fork 622 and a first elastic tensioning member 623; the first fork 622 is rotatably arranged on the base 110, and one end of the first fork 622 is matched and connected with the first contact portion 621a of the first travel switch 621, and the other end of the first fork 622 is matched and arranged with the position of the third position detection portion 821, so that when the third position detection portion 821 pushes the first fork 622, the first contact portion 621a is touched to trigger the first travel switch 621; the first elastic tensioning member 623 is connected between the first fork 622 and the base 110, providing a stable elastic force, so that the first fork 622 can be stably connected to the first contact portion 621a, so as to stably detect the swing of the first fork 622.

[0308] In some embodiments, the electrical device may be a refrigerator.

[0309] In some embodiments, the door-pushing mechanism 10 can be installed in the main body 11 , and can push up the door body 12 rotatably connected to the main body 11 ; it can also push up the drawer and other structures in the main body 11 .

[0310] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0311] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0312] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. An electrical device, including a door body, a main body and a top door mechanism arranged on the main body; characterized in that The door lifting mechanism comprises: A push-up member is rotatably connected to the base, and a plurality of push-up parts are sequentially arranged on the push-up member, and the distances between the plurality of push-up parts and the rotation center of the push-up member are sequentially increased, so that the door body can be directly or indirectly pushed up by the plurality of push-up parts sequentially during the rotation of the push-up member; a drive device connected to the push-top member to push the push-top member to rotate; A clutch device is connected between the push-top member and the drive device to cut or establish a connection between the drive device and the push-top member.

2. The electrical equipment of claim 1, characterized in that The door-lifting mechanism further comprises a push rod, which is movably arranged on the base, so that when the driving device drives the push-up member to rotate, the push rod is pushed in sequence by the multiple push-up parts to push the door body open.

3. The electrical equipment according to claim 1 or 2, characterized in that The plurality of push tops are connected in sequence to form an arc push top surface, and the distance from the arc push top surface to the rotation center of the push top member is linearly increased.

4. The electrical equipment of claim 3, characterized in that The ejector member comprises: A transmission gear is rotatably arranged on the base and connected to the clutch device; A cam is connected to the transmission gear, and the arc-shaped push-top surface is arranged on the cam.

5. The electrical equipment of claim 2, characterized in that A plurality of push-top support platforms are provided on the push-top rod. During the rotation of the push-top member, the plurality of push-top portions are successively pushed and topped to the plurality of push-top support platforms to drive the push-top to open the door body.

6. The electrical equipment of claim 5, characterized in that The push-top member includes a transmission gear, the plurality of push-tops are successively convex on the disk surface of the transmission gear, and the distance between the plurality of push-tops and the rotation center of the transmission gear is increased in turn.

7. The electrical equipment of claim 2, characterized in that The push rod is slidably arranged on the base, and the trajectory of the push rod is straight.

8. The electrical equipment of claim 7, characterized in that A linear guide rail is provided on the base, and a sliding groove is provided on the push rod, and the sliding groove is slidably connected to the linear guide rail, so that the push rod pushes the top door body along the straight track.

9. The electrical equipment according to any one of claims 2, 5 to 8, characterized in that The top door mechanism further includes a first in-place detection assembly; The first in-position detection assembly is connected to the drive device to detect position information of the push rod and control the action of the drive device.

10. The electrical equipment of claim 9, characterized in that The first in-place detection component comprises: A permanent magnet is arranged on the push rod; A magnetic permeable sheet is disposed on the push rod, and the magnetic permeable sheet is connected to the permanent magnet; The Hall magnetic induction chip is arranged on the side of the magnetic permeable sheet and connected to the driving device for inducing the magnetic field strength to control the operation of the driving device according to changes in the magnetic field strength.

11. The electrical equipment according to any one of claims 2, 5 to 8, characterized in that The door lifting mechanism also includes: The second in-place detection assembly is connected to the drive device to detect position information of one of the push top and control the action of the drive device.

12. The electrical equipment of claim 11, characterized in that The second in-position detection assembly includes a stroke switch connected to the drive device to control the action of the drive device by detecting position information of the push top.

13. The electrical equipment of claim 12, characterized in that The second in-place detection component also includes: A shift fork, the middle part of which is rotatably arranged on the base, one end of which is connected to the contact part of the travel switch, and the other end is matched with the position of one of the pushing top parts arranged on the transmission gear, so as to trigger the travel switch to control the action of the driving device when the corresponding pushing top part pushes the shift fork.

14. The electrical equipment of claim 13, characterized in that A first elastic tensioning member is connected between the fork and the base so that the fork abuts on the contact portion of the stroke switch.

15. The electrical equipment according to any one of claims 2, 5 to 8, characterized in that The top door mechanism also includes The third in-place detection assembly is connected to the drive device to detect a first in-place signal of one of the push top to control the drive device to drive the push top to invert; The fourth in-place detection assembly, connected to the drive device, detects the second in-place signal of one of the push top to control the stop action of the drive device.

16. The electrical equipment of claim 1, characterized in that The door lifting mechanism also includes: The upper cover is mounted on the base and formed with an installation cavity, and the pushing member, the driving device and the clutch device are all located in the installation cavity; The sealing cover is connected with the main body to form a first sealing cavity and a first sealing window. The base and the upper cover are arranged in the first sealing cavity. The ejecting member can extend out of the sealing cover through the sealing window.

17. The electrical equipment of claim 1, characterized in that The door lifting mechanism also includes: A sealing cover is matched and connected to the base to form a second sealing cavity, and a second sealing window communicating with the inside and outside of the second sealing cavity is opened on the sealing cover, the ejecting member is arranged outside the second sealing cavity, the driving device is arranged in the second sealing cavity, and the driving device is connected to the ejecting member through a transmission member passing through the second sealing window to drive the ejecting member to eject the door body.

18. The electrical equipment of claim 17, characterized in that The sealing cover is mounted on the main body, and the sealing cover is connected to the main body to form a third sealing cavity, and the base is located in the third sealing cavity.

19. The electrical equipment of claim 1, characterized in that The clutch device comprises: A first transmission member connected to the driving device; The second transmission member is arranged on the base coaxially with the first transmission member, and the second transmission member is connected to the push-top member; a transmission connection member connected to the second transmission member, the transmission connection member being detachably connected to the first transmission member, and when the transmission connection member and the first transmission member move relative to each other, the first transmission member pushes away from the transmission connection member; The drive member is connected to the transmission connector to elastically push the transmission connector to connect to the first transmission member.

20. The electrical equipment of claim 19, characterized in that The transmission connecting member comprises: The connecting end is connected to the second transmission member and is detachably connected to the first transmission member; The pushing end is connected with the driving member.

21. The electrical equipment of claim 20, characterized in that The connection end comprises: pushing the top surface to abut against the first transmission member to push the first rotary member to rotate; The reverse thrust slope is arranged opposite to the push-up surface so as to bear the thrust of the first transmission member and separate from the first transmission member in a direction perpendicular to the rotation plane of the first transmission member when the transmission connection member and the first transmission member move relative to each other.

Images