Switch assembly for door and refrigerator

By designing switch components with gears and driving components, the automatic opening and closing and manual opening and closing of refrigerator doors are achieved, which solves the problem of difficulty in automatic control of refrigerator doors and improves user experience and operation convenience.

CN115726652BActive Publication Date: 2024-12-13QINDAO HAIER REFRIGERATOR CO LTD +1
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Patent Information

Application Number
CN202111011925.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-08-31
Publication Date
2024-12-13
Estimated Expiration
2041-08-31

AI Technical Summary

Technical Problem

The automatic opening and closing function of refrigerator doors is missing, which causes users to need to operate manually, and it is difficult to control the opening angle, which may lead to collisions.

Method used

A switch assembly including a rotating shaft body, a door body rotating shaft, a first gear and a second gear is designed. The gear meshing is driven by the driving component to realize automatic opening and closing of the door body, and manual opening and closing is achieved through threaded connection and gear design. compatible.

Benefits of technology

The automatic opening and closing of the door body is realized, which reduces user operation and facilitates use. The door opening angle is better controlled through gear design, while taking into account the manual opening and closing functions, avoiding interference from automatic and manual methods.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention provides a switch assembly for a door body and a refrigerator. The switch assembly includes: a rotating shaft body; a door body rotating shaft, a first end of which is used to be fixedly connected to the door body, a second end of which is rotatably connected to the rotating shaft body, and a portion of the door body rotating shaft close to the second end has a first shaft buckle extending in a radial direction; a first gear rotatably connected to the rotating shaft body, a second shaft buckle is fixed on a surface of the first gear facing the door body rotating shaft, and can be abutted against the first shaft buckle when the second shaft buckle rotates to the position where the first shaft buckle is located; and a second gear meshing with the first gear, driven to rotate by a driving component, thereby driving the first gear to rotate in the door opening direction, and when the second shaft buckle rotates to the position where the first shaft buckle is located, driving the first shaft buckle to rotate in the door opening direction, and then driving the door body to rotate to open the door body, thereby realizing automatic opening of the door body, reducing user operations, and facilitating user use.
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Description

Technical Field

[0001] The invention relates to the technical field of door bodies, and in particular to a switch assembly for a door body and a refrigerator. Background Art

[0002] At present, when people use refrigerators, they need to manually open and close the refrigerator door. The process of manually opening and closing the refrigerator door brings inconvenience to users. In addition, when users manually open the refrigerator door, it is not easy to control the angle of opening the refrigerator door, which may cause the refrigerator door to collide with other objects. Summary of the invention

[0003] In view of the above problems, a switch assembly for a door body and a refrigerator are proposed to overcome the above problems or at least partially solve the above problems.

[0004] An object of the present invention is to realize automatic opening and closing of a door body.

[0005] A further object of the present invention is to simultaneously realize automatic opening and closing and manual opening and closing of the door body.

[0006] In particular, according to one aspect of the present invention, the present invention provides a switch assembly for a door body, comprising:

[0007] A shaft body;

[0008] A door body rotating shaft, wherein the first end of the door body rotating shaft is fixedly connected to the door body, the second end of the door body rotating shaft is rotatably connected to the rotating shaft body, and the portion of the door body rotating shaft close to the second end has a first shaft buckle extending in the radial direction;

[0009] A first gear is rotatably connected to the rotating shaft body, a second shaft buckle is fixed on a surface of the first gear facing the rotating shaft of the door body, and the second shaft buckle can be abutted against the first shaft buckle when the second shaft buckle rotates to the position where the first shaft buckle is located; and

[0010] The second gear is meshed with the first gear and is configured to be driven to rotate by the driving component, thereby driving the first gear to rotate in the door opening direction, and when the second shaft buckle rotates to the position where the first shaft buckle is located, it drives the first shaft buckle to rotate in the door opening direction, and then drives the door body to rotate to open the door body.

[0011] Optionally, a third shaft buckle is fixed to a side of the first gear that faces the door body shaft, and the third shaft buckle can abut against the first shaft buckle when the third shaft buckle rotates to the position where the first shaft buckle is located;

[0012] The second gear is also configured to drive the first gear to rotate in the door closing direction under the action of external force, and to drive the first shaft buckle to rotate in the door closing direction when the third shaft buckle rotates in the door closing direction to the position where the first shaft buckle is located, thereby driving the door body to rotate in the door closing direction to close the door body.

[0013] Optionally, the first gear and the rotating shaft body are connected by threads, and the first gear moves upward along the rotating shaft body during the process of rotating in the door opening direction, and moves downward along the rotating shaft body during the process of rotating in the door closing direction;

[0014] The door body shaft is connected to the shaft body by threads. The door body shaft moves upward along the shaft body during the process of rotating in the door opening direction. When the first shaft buckle moves to the position of the third shaft buckle, the bottom of the first shaft buckle is located above the third shaft buckle. The door body shaft moves downward along the shaft body during the process of rotating in the door closing direction.

[0015] Optionally, an angle between a connecting line between the second shaft buckle and the axis of the first gear and a connecting line between the third shaft buckle and the axis of the first gear is 30 to 60 degrees.

[0016] Optionally, a plurality of teeth are distributed on partial sections of the circumference of each of the first gear and the second gear.

[0017] Optionally, the angle between the connecting lines between the first and last two teeth of each partial section and the axis center of the gear where the teeth are located is equal to the maximum rotation angle of the gear where the teeth are located.

[0018] Optionally, the door body rotation shaft is fixedly connected to the bottom of the door body.

[0019] Optionally, the driving component is a motor.

[0020] Optionally, the switch assembly further includes:

[0021] The tray is used to accommodate the driving component, the first gear, the second gear and the rotating shaft body.

[0022] According to another aspect of the present invention, the present invention further provides a refrigerator, comprising:

[0023] Door body; and

[0024] The switch assembly of any of the above items is fixedly connected to the door body through the door body rotation shaft and is configured to open and close the door body.

[0025] In the switch assembly of the present invention, the second gear meshes with the first gear, and under the action of the driving component, the first gear is driven to rotate in the door opening direction, and the second shaft buckle also rotates along with the first gear in the door opening direction. When the second shaft buckle rotates to the position where the first shaft buckle is located, it abuts against the first shaft buckle, thereby driving the first shaft buckle to rotate in the door opening direction, and then driving the door body to rotate in the door opening direction to open the door body, realizing automatic opening of the door body, reducing user operations, and facilitating user use. In addition, by meshing the second gear with the first gear to drive the first gear to rotate to realize the door body opening, it is easier to control the opening angle of the door body.

[0026] Furthermore, the second gear drives the first gear to rotate in the door closing direction, and the third shaft buckle also rotates in the door closing direction along with the first gear, and when the third shaft buckle rotates to the position of the first shaft buckle, it resists against the first shaft buckle, thereby driving the first shaft buckle to rotate in the door closing direction, and then driving the door body to rotate to close the door body, realizing automatic closing of the door body, reducing user operation, and facilitating user use.

[0027] Furthermore, the first gear and the door body shaft are respectively threadedly connected to the shaft body, so that the first gear and the door body shaft are relatively independent, and the door body can be opened and closed automatically by the second gear driving the first gear to rotate, and the door body can be opened and closed manually by manually rotating the door body, so that manual door opening and closing and automatic door opening and closing are realized at the same time, and it is ensured that the automatic door opening and closing and the manual door opening and closing do not interfere with each other. In the case that the automatic door opening and closing and the manual door opening and closing do not interfere with each other, the manual door opening and closing and the automatic door opening and closing can be combined arbitrarily, and the door body can be flexibly opened and closed without damaging the switch assembly.

[0028] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0030] Figure 1 is a schematic structural diagram of a switch assembly for a door body according to an embodiment of the present invention;

[0031] Figure 2 is a schematic structural diagram of a switch assembly for a door body according to another embodiment of the present invention;

[0032] Figure 3 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention. DETAILED DESCRIPTION

[0033] Figure 1 FIG. 1 is a schematic diagram of a switch assembly 100 for a door according to an embodiment of the present invention. Figure 1The switch assembly 100 for a door body may include a shaft body 101, a door body shaft 102, a first gear 103, and a second gear 104. The first end of the door body shaft 102 is used to be fixedly connected to the door body, and the second end is rotatably connected to the shaft body 101, and the portion of the door body shaft 102 near the second end has a first shaft buckle 105 extending in the radial direction. The first gear 103 is rotatably connected to the shaft body 101. A second shaft buckle 106 is fixed on the surface of the first gear 103 facing the door body shaft 102, and can be abutted against the first shaft buckle 105 when the second shaft buckle 106 rotates to the position where the first shaft buckle 105 is located. The second gear 104 is meshed with the first gear 103, and drives the first gear 103 to rotate in the door opening direction under the action of the driving component 108, and drives the first shaft buckle 105 to rotate in the door opening direction when the second shaft buckle 106 rotates to the position where the first shaft buckle 105 is located, thereby driving the door body to rotate to open the door body.

[0034] In this embodiment, the second gear 104 is meshed with the first gear 103, and the first gear 103 is driven to rotate in the door opening direction under the action of the driving component 108, and the second shaft buckle 106 is also rotated along the door opening direction with the first gear 103. When the second shaft buckle 106 rotates to the position where the first shaft buckle 105 is located, it abuts against the first shaft buckle 105, thereby driving the first shaft buckle 105 to rotate in the door opening direction, and then driving the door body to rotate in the door opening direction to open the door body, realizing the automatic opening of the door body, reducing the user's operation, and facilitating the use of the user. In addition, the second gear 104 is meshed with the first gear 103 to drive the first gear 103 to rotate to open the door body, which can make it easier to control the opening angle of the door body.

[0035] In one embodiment of the present invention, a third shaft buckle 107 is fixed to a side of the first gear 103 facing the door body rotating shaft 102, and when the third shaft buckle 107 rotates to the position where the first shaft buckle 105 is located, it can abut against the first shaft buckle 105. The second gear 104 is also suitable for driving the first gear 103 to rotate in the door closing direction under the action of the driving component 108, and when the third shaft buckle 107 rotates to the position where the first shaft buckle 105 is located in the door closing direction, it drives the first shaft buckle 105 to rotate in the door closing direction, thereby driving the door body to rotate in the door closing direction to close the door body.

[0036] In this embodiment, the second gear 104 drives the first gear 103 to rotate in the door closing direction, and the third shaft buckle 107 also rotates in the door closing direction along with the first gear 103, and when the third shaft buckle 107 rotates to the position of the first shaft buckle 105, it abuts against the first shaft buckle 105, thereby driving the first shaft buckle 105 to rotate in the door closing direction, and then driving the door body to rotate to close the door body, thereby realizing automatic closing of the door body, reducing user operations, and facilitating user use.

[0037] In one embodiment of the present invention, the first gear 103 and the shaft body 101 may be threadedly connected, and the first gear 103 may move upward along the shaft body 101 during the process of rotating in the door opening direction, and may move downward along the shaft body 101 during the process of rotating in the door closing direction. The door body shaft 102 and the shaft body 101 may be threadedly connected, and the door body shaft 102 may move upward along the shaft body 101 during the process of rotating in the door opening direction, and when the first shaft buckle 105 moves to the position of the third shaft buckle 107, the bottom of the first shaft buckle 105 is located above the third shaft buckle 107, and the door body shaft 102 may move downward along the shaft body 101 during the process of rotating in the door closing direction.

[0038] In this embodiment, the first gear 103 and the door body shaft 102 are respectively threadedly connected to the shaft body 101, so that the first gear 103 and the door body shaft 102 are relatively independent, and the door body can be opened and closed automatically by driving the first gear 103 to rotate by the second gear 104, and the door body can be opened and closed manually by manually rotating the door body, so that manual opening and closing of the door and automatic opening and closing of the door can be realized at the same time, and it is ensured that the automatic opening and closing of the door and the manual opening and closing of the door do not interfere with each other. In the case where the automatic opening and closing of the door and the manual opening and closing of the door do not interfere with each other, the manual opening and closing of the door and the automatic opening and closing of the door can be arbitrarily combined, and the door body can be flexibly opened and closed without damaging the switch assembly 100.

[0039] Specifically, the process of combining automatic door opening and closing with manual door opening and closing is described below through specific examples.

[0040] When the door body is in a closed state, which can be a state after manual door closing or an automatic door closing state, the first shaft buckle 105 is located between the second shaft buckle 106 and the third shaft buckle 107. In the process of the door body rotating in the door opening direction under the action of manpower, the door body shaft 102 also rotates along with the door body in the door opening direction, and drives the first shaft buckle 105 to rotate in the door opening direction at the same time. In the process of the first shaft buckle 105 rotating in the door opening direction, the first shaft buckle 105 moves upward with the door body shaft 102. When the first shaft buckle 105 moves to the position of the third shaft buckle 107, the bottom of the first shaft buckle 105 is located above the third shaft buckle 107 so that the first shaft buckle 105 continues to rotate in the door opening direction to complete the manual door opening. Generally, the height of the third shaft buckle 107 is less than the height of the second shaft buckle 106.

[0041] When the door is in the manually opened state, the door rotates in the closing direction under the action of manpower, and the door shaft 102 also rotates along with the door, and drives the first shaft buckle 105 to rotate in the closing direction. During the rotation of the first shaft buckle 105 in the closing direction, the first shaft buckle 105 moves downward with the door shaft 102. When the first shaft buckle 105 moves to the position of the third shaft buckle 107, the bottom of the first shaft buckle 105 is located above the third shaft buckle 107 so that the first shaft buckle 105 continues to rotate in the closing direction, thereby completing the manual door closing.

[0042] When the door body is in the state of manual opening, the second gear 104 first drives the first gear 103 to rotate in the door opening direction, and the third shaft buckle 107 rotates along the door opening direction with the first gear 103. During the process of rotating along the door opening direction, the third shaft buckle 107 moves upward along with the first gear 103. When the third shaft buckle 107 passes the position where the first shaft buckle 105 is located, it touches the first shaft buckle 105. Afterwards, the second gear 104 drives the first gear 103 to rotate in the door closing direction, and the third shaft buckle 107 rotates along the door closing direction with the first gear 103, and drives the first shaft buckle 105 to rotate in the door closing direction. During the process of rotating along the door closing direction with the first gear 103, the third shaft buckle 107 moves downward along with the first gear 103. At the same time, the first shaft buckle 105 moves downward along with the door body shaft 102 until the third shaft buckle 107 is separated from the first shaft buckle 105, and the automatic door closing is completed. The descending speed of the first shaft buckle 105 can be less than the descending speed of the third shaft buckle 107.

[0043] When the door body is in a closed state, which can be a state after manual door closing or an automatic door closing state, the second gear 104 drives the first gear 103 to rotate in the door opening direction, and the second shaft buckle 106 rotates along with the first gear 103 in the door opening direction, and drives the first shaft buckle 105 to rotate in the door opening direction, thereby completing the automatic door opening. In an optional embodiment, the first gear 103 moves upward during the rotation in the door opening direction, and the third shaft buckle 107 moves upward along with the first gear 103 during the rotation in the door opening direction, until the third shaft buckle 107 reaches a height that can touch the first shaft buckle 105, thereby completing the automatic door opening. The speed at which the third shaft buckle 107 moves upward can be greater than the speed at which the first shaft buckle 105 moves upward. When the third shaft buckle 107 reaches a height that can touch the first shaft buckle 105, the automatic door opening is completed, which can make the automatic door closing process easier.

[0044] When the door is in the state of automatic opening, the second gear 104 drives the first gear 103 to rotate in the door closing direction, and the third shaft buckle 107 rotates along the door closing direction with the first gear 103, and drives the first shaft buckle 105 to rotate in the door closing direction. In addition, the third shaft buckle 107 moves downward along the rotating shaft body 101 along with the first gear 103, and the first shaft buckle 105 also moves downward along the rotating shaft body 101 along the door body rotating shaft 102, until the third shaft buckle 107 is separated from the first shaft buckle 105, thereby completing the automatic door closing. The descending speed of the first shaft buckle 105 can be lower than the descending speed of the third shaft buckle 107.

[0045] When the door is in the state of automatically opening, the door body drives the door body shaft 102 to rotate in the door closing direction under the action of manpower, and the first shaft buckle 105 rotates in the door closing direction along with the door body shaft 102, and drives the second shaft buckle 106 to rotate in the door closing direction. The first gear 103 rotates in the door closing direction along with the second shaft buckle 106, and drives the second gear 104 to rotate, thereby completing manual door closing.

[0046] In one embodiment of the present invention, the angle between the connecting line between the second shaft buckle 106 and the axis of the first gear 103 and the connecting line between the third shaft buckle 107 and the axis of the first gear 103 can be 30 to 60 degrees. Specifically, for example, the angle can be 35, 45 or 55 degrees.

[0047] In this embodiment, the first gear 103 rotates in the door opening direction, and when the second shaft buckle 106 rotates to the position where the first shaft buckle 105 is located, it drives the first shaft buckle 105 to rotate in the door opening direction to open the door body. If the door body needs to be closed, the first gear 103 needs to be rotated a certain angle in the door closing direction before the third shaft buckle 107 can be rotated to the position where the first shaft buckle 105 is located; similarly, after the door body is closed, if the door body needs to be opened, the first gear 103 needs to be rotated a certain angle in the door opening direction before the second shaft buckle 106 can be rotated to the position where the first shaft buckle 105 is located. Therefore, in order to make the second shaft buckle 106 and the third shaft buckle 107 more easily rotate to the position where the first shaft buckle 105 is located, that is, to avoid the above-mentioned certain angle being too large, the angle between the connecting line of the second shaft buckle 106 and the axis of the first gear 103 and the connecting line of the third shaft buckle 107 and the axis of the first gear 103 should not be too large, and the general angle can be 30 to 60 degrees. In addition, the first gear 103 and the shaft body 101 are threadedly connected. The first gear 103 can move upward along the shaft body 101 when rotating in the door opening direction, and can move downward along the shaft body 101 when rotating in the door closing direction. In order to make the switching between the automatic door opening and closing mode and the manual door opening and closing mode more reasonable, the angle between the connecting line between the second shaft buckle 106 and the axis of the first gear 103 and the connecting line between the third shaft buckle 107 and the axis of the first gear 103 should not be too small. If the angle is too small, it will not be conducive to the first gear 103 rising or falling to a reasonable position. The angle is 30 to 60 degrees, which can make the switching between the automatic door opening and closing mode and the manual door opening and closing mode more reasonable.

[0048] In one embodiment of the present invention, a plurality of teeth are distributed on partial sections of the circumference of each of the first gear 103 and the second gear 104 .

[0049] In this embodiment, since the opening angle of the door body is often less than 180 degrees, the rotation angle of the first gear 103 and the second gear 104 only needs to meet the opening angle of the door body. Therefore, it is only necessary for the first gear 103 and the second gear 104 to have multiple teeth distributed in partial circumferential sections of each other, which can save the material cost of making the gears.

[0050] Specifically, in one embodiment of the present invention, the angle between the connecting lines from the first and last two teeth of each partial segment to the axis of the gear where the teeth are located is equal to the maximum rotation angle of the gear where the teeth are located.

[0051] In this embodiment, the angle between the connecting lines between the first and last teeth of each partial section and the axis of the gear where the teeth are located is equal to the maximum rotation angle of the gear where the teeth are located, which can save the material cost of manufacturing the gear to the greatest extent.

[0052] In one embodiment of the present invention, the door body rotating shaft 102 can be fixedly connected to the bottom of the door body. Of course, the door body rotating shaft 102 can also be fixedly connected to the top of the door body.

[0053] In one embodiment of the present invention, the driving component 108 may be a motor. The driving component 108 is connected to the second gear 104 and is used to drive the second gear 104 to rotate. Specifically, the type of the motor may be a stepping motor, and of course, other types of motors may also be used. The driving component 108 may receive control instructions, such as door opening instructions and door closing instructions, and drive the second gear 104 to rotate according to the received control instructions, thereby realizing automatic door opening and closing.

[0054] In one embodiment of the present invention, the switch assembly 100 may further include a tray 109. The tray 109 may be used to accommodate the drive component 108, the first gear 103, the second gear 104, and the shaft body 101. Placing the drive component 108, the first gear 103, the second gear 104, and the shaft body 101 in the tray 109 may make the structure of the switch assembly 100 more compact and may also make it more convenient to move the switch assembly 100. Generally, the tray 109 may be fixed to the body of the refrigerator 200. The structure of placing the drive component 108, the first gear 103, the second gear 104, and the shaft body 101 in the tray 109 may be referred to. Figure 2 .

[0055] See also Figure 3 Based on the same concept, the present invention also provides a refrigerator 200. The refrigerator 200 may include a door body 201 and a switch assembly 100 of any of the above embodiments. The switch assembly 100 is fixedly connected to the door body 201 through a door body rotating shaft 102, and is used to open and close the door body 201.

[0056] The above embodiments may be combined arbitrarily. According to any one of the above preferred embodiments or a combination of multiple preferred embodiments, the embodiments of the present invention can achieve the following beneficial effects:

[0057] The second gear 104 meshes with the first gear 103, and drives the first gear 103 to rotate in the door opening direction under the action of the driving component 108. The second shaft buckle 106 also rotates along the door opening direction with the first gear 103. When the second shaft buckle 106 rotates to the position where the first shaft buckle 105 is located, it abuts against the first shaft buckle 105, thereby driving the first shaft buckle 105 to rotate in the door opening direction, and then driving the door body 201 to rotate in the door opening direction to open the door body 201, realizing the automatic opening of the door body 201, reducing the user's operation and facilitating the use of the user. In addition, by meshing the second gear 104 with the first gear 103 to drive the first gear 103 to rotate to realize the opening of the door body 201, it is easier to control the opening angle of the door body 201.

[0058] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0059] Unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed", "coupled" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person skilled in the art should be able to understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0060] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. A switch assembly for a door body, include: A shaft body; A door body rotating shaft, wherein the first end of the door body rotating shaft is fixedly connected to the door body, the second end of the door body rotating shaft is rotatably connected to the rotating shaft body, and the portion of the door body rotating shaft close to the second end has a first shaft buckle extending in the radial direction; A first gear is rotatably connected to the rotating shaft body, a second shaft buckle is fixed on a surface of the first gear facing the rotating shaft of the door body, and when the second shaft buckle rotates to the position where the first shaft buckle is located, it abuts against the first shaft buckle; and A second gear meshing with the first gear and configured to be driven to rotate by a driving component, thereby driving the first gear to rotate in a door opening direction, and driving the first shaft buckle to rotate in the door opening direction when the second shaft buckle rotates to the position where the first shaft buckle is located, thereby driving the door body to rotate to open the door body; A third shaft buckle is also fixed to a side of the first gear that faces the door body shaft, and when the third shaft buckle rotates to the position where the first shaft buckle is located, it abuts against the first shaft buckle; The second gear is further configured to drive the first gear to rotate in the door closing direction under the action of an external force, and to drive the first shaft buckle to rotate in the door closing direction when the third shaft buckle rotates in the door closing direction to the position where the first shaft buckle is located, thereby driving the door body to rotate in the door closing direction to close the door body; The first gear and the rotating shaft body are connected by threads, and the first gear moves upward along the rotating shaft body when rotating in the door opening direction, and moves downward along the rotating shaft body when rotating in the door closing direction; The door body shaft is connected to the shaft body by threads, and the door body shaft moves upward along the shaft body during rotation in the door opening direction, and when the first shaft buckle moves to the position of the third shaft buckle, the bottom of the first shaft buckle is located above the third shaft buckle, and the door body shaft moves downward along the shaft body during rotation in the door closing direction.

2. The switch assembly according to claim 1, in, An angle between a connecting line between the second shaft buckle and the first gear axis and a connecting line between the third shaft buckle and the first gear axis is 30 to 60 degrees.

3. The switch assembly according to claim 1, in, A plurality of teeth are distributed on partial sections of the circumference of each of the first gear and the second gear.

4. The switch assembly according to claim 3, in, The angle between the connecting lines from the first and last two teeth of each partial section to the axis of the gear where the teeth are located is equal to the maximum rotation angle of the gear where the teeth are located.

5. The switch assembly according to claim 1, in, The door body rotating shaft is fixedly connected to the bottom of the door body.

6. The switch assembly according to claim 1, The driving component is a motor.

7. The switch assembly according to claim 1, further comprising: include: The tray is used to accommodate the driving component, the first gear, the second gear and the rotating shaft body.

8. A refrigerator, include: Door body; as well as The switch assembly described in any one of claims 1 to 7 is fixedly connected to the door body through a door body rotation shaft and is configured to open and close the door body.

Citation Information

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