Door body opening and closing device for refrigerator and refrigerator

Abstract

The utility model relates to the technical field of refrigeration equipment, and discloses a door opening and closing device for a refrigerator. The refrigerator comprises a door body and a cabinet body, and the door body opening and closing device comprises a first transmission shaft arranged at the first end of the side edge of the door body and capable of being rotationally connected with the cabinet body; the second transmission shaft is arranged at the second end of the side edge of the door body and can be rotationally connected with the cabinet body; the transmission mechanism is in transmission connection with the first transmission shaft and the second transmission shaft so as to drive the first transmission shaft and the second transmission shaft to oppositely move to a contraction position or oppositely move to an extension position relative to the door body; the power mechanism is in driving connection with any one of the transmission mechanism, the first transmission shaft or the second transmission shaft; at the contraction position, the first transmission shaft and the second transmission shaft are separated from the cabinet body, and the side edge of the door body is in an unlocked state; at the stretching position, the first transmission shaft and the second transmission shaft are connected with the cabinet body, and the side edge of the door body is in a locked state. The power mechanism can provide source power, and the automation degree is improved. The utility model further discloses the refrigerator.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration equipment, and in particular to a door switch device for a refrigerator and a refrigerator. Background Art

[0002] At present, refrigeration equipment such as freezers and refrigerators can usually only open from one side, and the other side is used as a hinge axis, which limits the placement of the freezer and the application scenario is relatively single. For freezers, if you want to change the front door to the back door, after-sales service needs to come to replace the hinge, which is complicated.

[0003] The related technology provides a left-right door opening structure of a cabinet, a self-locking member is arranged on the cabinet, a lock hole is arranged on the self-locking member, and telescopic rods are arranged on both sides of the door body. When the door needs to be opened on one side, the telescopic rod is driven to retract, and the two ends of the telescopic rod are disengaged from the corresponding lock holes, and the door body and the cabinet are completely disengaged on that side, and the door body and the cabinet are still locked by the telescopic rod and the self-locking member on the other side. The door body can be rotated by means of the self-locking member on the locking side. The telescopic rod is driven to retract by the driving member, so that the telescopic rod is disengaged from the self-locking member, and the door body and the cabinet can be disengaged on that side, and the telescopic rod is driven to extend again and locked again. The driving member includes an inner handle and an outer handle, and the outer handle drives the inner handle to move toward the door body or away from the door body, thereby driving the telescopic rod to retract or extend through the inclined plane steering method.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] The related technology applies a force to the outer handle or removes the external force from the outer handle to drive the inner handle to drive the telescopic rod to move. The manual driving method is relatively laborious.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The disclosed embodiment provides a door switch device for a refrigerator and the refrigerator, so as to improve the degree of automation of the door switch when changing the opening direction of the refrigerator door.

[0009] According to a first aspect of an embodiment of the utility model, a door switch device for a refrigerator is provided, the refrigerator comprising a door and a cabinet, the door switch device comprising: a first transmission shaft, provided at a first end on a side of the door, capable of being rotatably connected to the cabinet; a second transmission shaft, provided at a second end on the same side of the door, capable of being rotatably connected to the cabinet; a transmission mechanism, drivingly connected to both the first transmission shaft and the second transmission shaft, so as to drive the first transmission shaft and the second transmission shaft to move toward each other to a retracted position or away from each other to an extended position relative to the door body; a power mechanism, drivingly connected to any one of the transmission mechanism, the first transmission shaft or the second transmission shaft; wherein, in the retracted position, the first transmission shaft and the second transmission shaft are both separated from the cabinet, and the side of the door body is in an unlocked state; in the extended position, the first transmission shaft and the second transmission shaft are both connected to the cabinet, and the side of the door body is in a locked state.

[0010] Optionally, the first transmission shaft and the second transmission shaft are arranged on the side of the door body along the first direction, the first transmission shaft is arranged at the first end of the side of the door body and extends along the second direction toward the second end of the side of the door body, the second transmission shaft is arranged at the second end of the side of the door body and extends along the second direction toward the first end of the side of the door body, and the first transmission shaft and the second transmission shaft are coaxially arranged along the second direction; wherein the first direction is the length or width direction of the door body, and the second direction is a direction perpendicular to the first direction.

[0011] Optionally, the first transmission shaft is provided with a first rack, which extends along the second direction; the second transmission shaft is provided with a second rack, which extends along the second direction and is arranged opposite to the first rack along the first direction; the transmission mechanism includes: a gear, which is arranged between the first rack and the second rack, and is meshed and connected with both the first rack and the second rack.

[0012] Optionally, the power mechanism includes: an electromagnetic coil, which is drivingly connected to the first transmission shaft and is configured to drive the first transmission shaft to move to a retracted position when powered.

[0013] Optionally, the door switch device for the refrigerator further includes: a reset mechanism, which is provided on the first transmission shaft and / or the second transmission shaft and is configured to assist the first transmission shaft and / or the second transmission shaft to move to the extended position.

[0014] Optionally, the door switch device for the refrigerator also includes: a first limiting portion, which is arranged on the door body; the first transmission shaft is provided with a first limiting matching portion, and the first limiting portion cooperates with the first limiting matching portion to limit the movement range of the first transmission shaft relative to the door body; and / or, a second limiting portion, which is arranged on the door body; the second transmission shaft is provided with a second limiting matching portion, and the second limiting portion cooperates with the second limiting matching portion to limit the movement range of the second transmission shaft relative to the door body.

[0015] According to a second aspect of an embodiment of the utility model, a refrigerator is provided, comprising any one of the door switch devices for a refrigerator as described above.

[0016] Optionally, the door body includes a first side edge and a second side edge that are opposite to each other along the first direction, and the number of the door body switch devices is two, which are respectively arranged on the first side edge and the second side edge.

[0017] Optionally, a first handle is provided on the outer side of the first side, and a second handle is provided on the outer side of the second side, and the refrigerator further includes: a first sensor, provided on the first handle, and configured to detect touch information of the first handle; a second sensor, provided on the second handle, and configured to detect touch information of the second handle; a controller, connected to the first sensor and the second sensor, and driven by the power mechanism, and configured to control the power mechanism of the first side and the second side to operate according to the detection information of the first sensor and the second sensor; wherein the power mechanism includes a first power mechanism provided on the first side and a second power mechanism provided on the second side, and when both the first sensor and the second sensor detect touch information, the controller controls both the first power mechanism and the second power mechanism not to operate; when only the first sensor detects touch information, the controller controls the first power mechanism to operate so that the first side is in an unlocked state; when only the second sensor detects touch information, the controller controls the second power mechanism to operate so that the second side is in an unlocked state.

[0018] Optionally, the refrigerator also includes: a third sensor, which is arranged on the door body, connected to the controller, and configured to detect the switch status information of the door body, and transmit the detection information to the controller; wherein, when the third sensor detects the door opening information, the controller controls the power mechanism on the door body side in the unlocked state to continue to work, so that the door body side is continuously in the unlocked state; in the case that the door body switch device for the refrigerator includes a reset mechanism, when the third sensor detects the door closing information, the controller controls the power mechanism not to work, and the reset mechanism assists the first transmission shaft and / or the second transmission shaft to move to the extended position.

[0019] The door switch device for a refrigerator and the refrigerator provided by the embodiments of the present disclosure can achieve the following technical effects:

[0020] When changing the opening direction of the refrigerator door, the power mechanism can provide source power for the door switch device, thereby improving the degree of automation of the door switch device. The first transmission shaft and the second transmission shaft are both connected to the transmission mechanism in a transmission manner. By driving the transmission mechanism, the first transmission shaft or the second transmission shaft to move, the other two can be driven to move synchronously. When the first transmission shaft and the second transmission shaft move toward each other to a retracted position relative to the door body, the first transmission shaft and the second transmission shaft are separated from the cabinet body, and the side of the door body is in an unlocked state, and the user can open or close the door body from the side of the door body. When the first transmission shaft and the second transmission shaft move away from each other to an extended position, the first transmission shaft and the second transmission shaft are rotationally connected to the cabinet body, and the side of the door body is in a locked state. The side of the door body cannot be opened by the user, and the side of the door body can rotate relative to the cabinet body.

[0021] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0023] Figure 1 is a structural schematic diagram of a refrigerator provided by an embodiment of the present disclosure;

[0024] Figure 2 yes Figure 1 The cross-sectional schematic diagram along the AA direction is shown, wherein the direction indicated by the arrow is the first direction;

[0025] Figure 3 is a structural schematic diagram of the door switch device for a refrigerator provided by an embodiment of the present disclosure and the door body cooperating with each other, wherein the direction indicated by the arrow is the second direction;

[0026] Figure 4 yes Figure 3 A local enlarged schematic diagram of point A is shown;

[0027] Figure 5 yes Figure 3 A local enlarged schematic diagram of point B is shown.

[0028] Reference numerals:

[0029] 10: Freezer;

[0030] 20: door switch device; 21: first transmission shaft; 211: first rack; 212: first position-limiting matching portion; 213: radial surface; 214: first transmission shaft body; 215: extension portion; 216: drive connection portion; 22: second transmission shaft; 221: second rack; 222: second position-limiting matching portion; 223: support sheet; 23: transmission mechanism; 231: gear; 24: power mechanism; 241: electromagnetic coil; 25: reset mechanism; 251: spring;

[0031] 30: door body; 31: side of door body; 311: first side; 312: second side; 32: first limiting portion; 321: housing; 322: through hole; 33: second limiting portion; 331: limiting sheet; 34: first handle; 35: second handle;

[0032] 40: cabinet body; 41: first positioning block; 42: second positioning block;

[0033] 50: The third sensor. DETAILED DESCRIPTION

[0034] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0035] The terms "first", "second", etc. in the specification and claims of the disclosed embodiments and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate for the disclosed embodiments described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0036] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0037] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0038] Unless otherwise stated, the term "plurality" means two or more.

[0039] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0040] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0041] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0042] At present, refrigeration equipment such as freezers and refrigerators can usually only open their doors from one side, and the other side is used as a hinge axis, which limits the placement of the freezer and the application scenarios are relatively single. When the freezer is bought and used, there are problems with the back against the wall and the compressor side against the wall, which affects the heat dissipation of the compressor, affects the service life of the compressor, increases the power consumption of the freezer, and affects the refrigeration effect of the freezer. For freezers, to change the front door to the back door, after-sales service is required to replace the hinges on site, which is complicated. When sold in markets or supermarkets, freezers can only open on one side and be placed against the wall. Due to the limited space in the sales venue, the flow of people is limited, affecting sales efficiency. When sold by retailers, the single-sided door can only be taken by customers or sellers unilaterally, affecting user experience.

[0043] Combination Figure 1-5As shown, the embodiment of the present disclosure provides a door switch device 20 for a refrigerator 10. The refrigerator 10 includes a door 30 and a cabinet 40, and the door switch device 20 includes a first transmission shaft 21, a second transmission shaft 22, a transmission mechanism 23 and a power mechanism 24. The first transmission shaft 21 is arranged at the first end of the side edge 31 of the door body, and can be rotatably connected to the cabinet body 40; the second transmission shaft 22 is arranged at the second end of the same side edge 31 of the door body, and can be rotatably connected to the cabinet body 40; the transmission mechanism 23 is transmission-connected to both the first transmission shaft 21 and the second transmission shaft 22, so as to drive the first transmission shaft 21 and the second transmission shaft 22 to move toward each other to a retracted position or move away from each other to an extended position relative to the door body 30; the power mechanism 24 is drivingly connected to any one of the transmission mechanism 23, the first transmission shaft 21 or the second transmission shaft 22; wherein, in the retracted position, the first transmission shaft 21 and the second transmission shaft 22 are separated from the cabinet body 40, and the side edge 31 of the door body is in an unlocked state; in the extended position, the first transmission shaft 21 and the second transmission shaft 22 are connected to the cabinet body 40, and the side edge 31 of the door body is in a locked state.

[0044] Combination Figure 2-3 As shown, the first transmission shaft 21 and the second transmission shaft 22 are both connected to the transmission mechanism 23. The power mechanism 24 drives the transmission mechanism 23, the first transmission shaft 21 or the second transmission shaft 22 to move, which can drive the other two to move synchronously.

[0045] When the first transmission shaft 21 and the second transmission shaft 22 move toward each other to the retracted position relative to the door body 30, the first transmission shaft 21 and the second transmission shaft 22 are separated from the cabinet body 40, and the door body side 31 (for example, the first side 311) is in an unlocked state, and the user can open / close the door body 30 from the door body side 31. When the first transmission shaft 21 and the second transmission shaft 22 move away from each other to the extended position, the first transmission shaft 21 and the second transmission shaft 22 are both rotationally connected to the cabinet body 40, and the door body side 31 (for example, the first side 311) is in a locked state, and the door body side 31 cannot be opened by the user and can only rotate relative to the cabinet body 40.

[0046] By using the door switch device 20 for the refrigerator 10 provided in the embodiment of the present disclosure, when changing the opening direction of the door 30 of the refrigerator 10, the power mechanism 24 can provide source power for the door switch device 20, thereby improving the degree of automation of the door switch device 20.

[0047] Optionally, combined Figure 2-3 As shown, the first transmission shaft 21 and the second transmission shaft 22 are arranged along a first direction (such as Figure 2 The first transmission shaft 21 is disposed at a first end of the door body side 31 and extends along a second direction (as shown by the arrow in the middle). Figure 3The first transmission shaft 21 and the second transmission shaft 22 are coaxially arranged along the second direction, wherein the first direction is the length or width direction of the door body 30, and the second direction is a direction perpendicular to the first direction.

[0048] The first transmission shaft 21 and the second transmission shaft 22 are arranged on the same side of the door body 30 along the first direction, extend relatively along the second direction, and are arranged coaxially, and can play the role of a door axis on the door body side 31, thereby reducing the setting of additional door axis components and reducing production costs. Under the cooperation of the first transmission shaft 21 and the second transmission shaft 22, the door body side 31 is pivotally connected to the cabinet body 40 and can rotate relative to the cabinet body 40.

[0049] The present application takes the first direction as the width direction of the door body 30 and the second direction as the length direction of the door body 30 as an example.

[0050] Optionally, combined Figure 2-3 As shown, the first transmission shaft 21 is provided with a first rack 211, and the first rack 211 extends along the second direction; the second transmission shaft 22 is provided with a second rack 221, and the second rack 221 extends along the second direction and is arranged opposite to the first rack 211 along the first direction; the transmission mechanism 23 includes a gear 231, and the gear 231 is arranged between the first rack 211 and the second rack 221, and is meshed and connected with both the first rack 211 and the second rack 221.

[0051] The transmission mechanism 23 and the first transmission shaft 21 and the second transmission shaft 22 are transmitted through the gear 231 structure. The first rack 211 and the second rack 221 both extend along the second direction, that is, extend along the telescopic direction of the first transmission shaft 21 and the second transmission shaft 22. The first rack 211 and the second rack 221 are arranged opposite to each other along the first direction, and the gear 231 is arranged between the first rack 211 and the second rack 221, and is meshed and connected with the first rack 211 and the second rack 221, so that the gear 231 can rotate toward the second direction, drive the first rack 211 and the second rack 221 to move relative to each other or move away from each other, thereby transmitting the first transmission shaft 21 and the second transmission shaft 22 to move toward each other to the retracted position or move away from each other to the extended position relative to the door body 30.

[0052] Combination Figure 2-3 As shown, the first transmission shaft 21 includes a first transmission shaft body 214 and an extension portion 215. The first transmission shaft body 214 is coaxially arranged with the second transmission shaft 22. The extension portion 215 is arranged opposite to the second transmission shaft 22 along the first direction, and a bend is formed between the first transmission shaft body 214 and the extension portion 215; wherein the first rack 211 is arranged on the extension portion 215, and the second rack 221 is arranged at the end of the second transmission shaft 22 opposite to the extension portion 215.

[0053] The gear 231 rack transmission can transmit greater power and has higher transmission accuracy, which improves the operating efficiency of connecting or separating the door side 31 and the cabinet 40. The gear 231 rack transmission structure is simple and compact, with a small volume, and can save space while achieving stable transmission.

[0054] Optionally, combined Figure 2 As shown, the power mechanism 24 includes an electromagnetic coil 241, which is drivingly connected to the first transmission shaft 21 and is configured to drive the first transmission shaft 21 to move to a retracted position when powered.

[0055] When the electromagnetic coil 241 is not energized, the first transmission shaft 21 is in the extended position, the second transmission shaft 22 is also in the extended position, the first transmission shaft 21 and the second transmission shaft 22 are both connected to the cabinet 40, and the side edge 31 of the door body is in a locked state. When the electromagnetic coil 241 is energized, the electromagnetic coil 241 drives the first transmission shaft 21 to move to the retracted position, the first transmission shaft 21 drives the transmission mechanism 23 to move, and drives the first transmission shaft 21 and the second transmission shaft 22 to move toward each other relative to the door body 30 to the retracted position, the first transmission shaft 21 and the second transmission shaft 22 are both separated from the cabinet 40, and the side edge 31 of the door body is in an unlocked state.

[0056] When the electromagnetic coil 241 is energized, a magnetic attraction is generated. The direction of the magnetic force is different when the energization direction is different (+ or -). Since the magnetic field generated by the electromagnetic coil 241 can change rapidly, the response speed of the electromagnetic coil 241 drive is very fast. The electromagnetic coil 241 drive does not need to be in direct contact with the first transmission shaft 21, which reduces friction and wear, increases the life of the equipment, and reduces driving noise.

[0057] Optionally, combined Figure 2-5 As shown, the first transmission shaft 21 is provided with a driving connection part 216, which is provided at both ends of the electromagnetic coil 241, and the electromagnetic coil 241 is drivingly connected to the driving connection part 216. The driving connection part 216 is made of metal or magnetic material, and can move under the magnetic force driving action of the electromagnetic coil 241.

[0058] It can be understood that the electromagnetic coil 241 can also be connected to the second transmission shaft 22 for driving, and is configured to drive the second transmission shaft 22 to move to the retracted position when powered.

[0059] It can be understood that the power mechanism 24 can also be a motor, which is connected to the transmission mechanism 23 to drive the transmission mechanism 23 to drive the first transmission shaft 21 and the second transmission shaft 22 to move toward each other to the retracted position or move away from each other to the extended position relative to the door body 30.

[0060] The present application takes the example that the power mechanism 24 is an electromagnetic coil 241 , the electromagnetic coil 241 is drivingly connected to the first transmission shaft 21 , and the transmission mechanism 23 is a gear 231 , and the gear 231 is drivingly connected to the first transmission shaft 21 and the second transmission shaft 22 .

[0061] Optionally, combined Figure 2-3 As shown, the door switch device 20 for the refrigerator 10 also includes a reset mechanism 25, which is disposed on the first transmission shaft 21 and / or the second transmission shaft 22 and is configured to assist the first transmission shaft 21 and / or the second transmission shaft 22 to move to the extended position.

[0062] The reset mechanism 25 can be arranged on the first transmission shaft 21 or the second transmission shaft 22, or can be arranged on the first transmission shaft 21 and the second transmission shaft 22. The present application takes the reset mechanism 25 arranged on the second transmission shaft 22 as an example for explanation.

[0063] The second transmission shaft 22 is provided with a reset mechanism 25. When the power mechanism 24 drives the first transmission shaft 21 and the second transmission shaft 22 to move to the retracted position, the second transmission shaft 22 simultaneously drives the reset mechanism 25 to move to the retracted position, and the door side 31 is in an unlocked state. When the door side 31 needs to be in a locked state, the reset pulling force of the reset mechanism 25 can drive the second transmission shaft 22 to move toward the extended position, and the second transmission shaft 22 drives the transmission mechanism 23 to move, and drives the first transmission shaft 21 and the second transmission shaft 22 to move in opposite directions to the extended position. In this way, only when the first transmission shaft 21 and the second transmission shaft 22 need to move to the retracted position, the power mechanism 24 can be used for driving, which can save energy consumption.

[0064] Optionally, combined Figure 2-3 As shown, the reset mechanism 25 is a spring 251, wherein the spring 251 is in a compressed state when the first transmission shaft 21 and the second transmission shaft 22 are in the retracted position, and the spring 251 returns to the original state when the first transmission shaft 21 and the second transmission shaft 22 are in the extended position. This application takes the spring 251 being arranged on the second transmission shaft 22 as an example.

[0065] The spring 251 has stable mechanical properties and durability, and the use of the spring 251 as the reset mechanism 25 can maintain a stable reset function. At the same time, the spring 251 has a good buffering effect, can absorb vibration, and improve the stability of the first transmission shaft 21 and / or the second transmission shaft 22. Moreover, the spring 251 is simple to manufacture, low in cost, and easy to install and replace.

[0066] Optionally, combined Figure 2-5As shown, the door switch device 20 for the refrigerator 10 also includes a first limit portion 32, which is arranged on the door body 30; the first transmission shaft 21 is provided with a first limit matching portion 212, and the first limit portion 32 cooperates with the first limit matching portion 212 to limit the movement range of the first transmission shaft 21 relative to the door body 30; and / or, the door switch device 20 for the refrigerator 10 also includes a second limit portion 33, which is arranged on the door body 30; the second transmission shaft 22 is provided with a second limit matching portion 222, and the second limit portion 33 cooperates with the second limit matching portion 222 to limit the movement range of the second transmission shaft 22 relative to the door body 30.

[0067] Optionally, combined Figure 3-5 As shown, the door switch device 20 for the refrigerator 10 also includes a first limit portion 32, which is arranged on the door body 30; the first transmission shaft 21 is provided with a first limit matching portion 212, and the first limit portion 32 cooperates with the first limit matching portion 212 to limit the movement range of the first transmission shaft 21 relative to the door body 30.

[0068] The first transmission shaft 21 moves between a retracted position and an extended position relative to the door body 30. Through the cooperation of the first limiting portion 32 and the first limiting matching portion 212, the movement range of the first transmission shaft 21 relative to the door body 30 can be more effectively limited to prevent the first transmission shaft 21 from excessive movement.

[0069] The first position limiting portion 32 and the first position limiting matching portion 212 may be any form of position limiting matching structure, and the present application does not limit the specific structural form of the first position limiting portion 32 and the first position limiting matching portion 212 .

[0070] Optionally, combined Figure 3-5 As shown, the electromagnetic coil 241 is provided with a housing 321. The housing 321 protects the electromagnetic coil 241. The housing 321 also serves as an insulator to separate the electromagnetic coil 241 from the door body 30.

[0071] Optionally, combined Figure 3-5 As shown, the first transmission shaft 21 is provided with a driving connection part 216 at both ends corresponding to the electromagnetic coil 241 along the second direction, and the first transmission shaft 21, the driving connection part 216 of the first transmission shaft 21 and the electromagnetic coil 241 are coaxially arranged; the shell 321 is provided with a through hole 322 at both ends corresponding to the driving connection part 216 along the second direction, and the radial dimension of the through hole 322 is larger than the radial dimension of the corresponding driving connection part 216, and smaller than the radial dimension of the corresponding first transmission shaft 21.

[0072] When the electromagnetic coil 241 drives the first transmission shaft 21 to move, the driving connection part 216 can pass through the corresponding through hole 322 and move to the inside of the shell 321. Since the radial dimension of the first transmission shaft 21 corresponding to the driving connection part 216 is larger than the radial dimension of the corresponding through hole 322, the first transmission shaft 21 cannot pass through the through hole 322.

[0073] Optionally, the number of the first limiting parts 32 is two, which are respectively two outer surfaces of the housing 321 opposite to each other along the second direction; the number of the first limiting matching parts 212 is two, which are respectively two radial surfaces 213 corresponding to the two outer surfaces of the first transmission shaft 21 and the housing 321 opposite to each other along the second direction. The two outer surfaces of the housing 321 opposite to each other along the second direction are matched with the two radial surfaces 213 corresponding to the first transmission shaft 21, respectively, so as to limit the range of motion of the first transmission shaft 21 relative to the door body 30 along the second direction toward the extended position or the retracted position. And there is no need to set an additional limiting structure. The length of the driving connection part 216 along the second direction can limit the movement distance of the first transmission shaft 21.

[0074] It is understandable that one of the first limiting portion 32 and the first limiting matching portion 212 may be a block, and the other may be a baffle.

[0075] Optionally, combined Figure 2-3 As shown, the door switch device 20 for the refrigerator 10 also includes a second limit portion 33, which is arranged on the door body 30; the second transmission shaft 22 is provided with a second limit matching portion 222, and the second limit portion 33 cooperates with the second limit matching portion 222 to limit the movement range of the second transmission shaft 22 relative to the door body 30.

[0076] The second transmission shaft 22 moves between a retracted position and an extended position relative to the door body 30. Through the cooperation of the second limiting portion 33 and the second limiting matching portion 222, the movement range of the second transmission shaft 22 relative to the door body 30 can be more effectively limited to prevent the second transmission shaft 22 from moving excessively.

[0077] The second position limiting portion 33 and the second position limiting matching portion 222 may be any form of position limiting matching structure, and the present application does not limit the specific structural form of the second position limiting portion 33 and the second position limiting matching portion 222 .

[0078] Combination Figure 2-3 As shown, when the reset structure is a spring 251 and the spring 251 is arranged on the second transmission shaft 22, the second transmission shaft 22 is provided with a support plate 223, and the support plate 223 abuts against one end of the spring 251; the door body 30 is provided with a limit plate 331, and the limit plate 331 abuts against the other end of the spring 251.

[0079] Optionally, the support plate 223 is fixedly connected to the second transmission shaft 22 and can move synchronously with the second transmission shaft 22; the second transmission shaft 22 is sequentially penetrated by the spring 251 and the limit plate 331, and can move along the second direction relative to the spring 251 and the limit plate 331.

[0080] In the disclosed embodiment, the limiting plate 331 serves as the second limiting portion 33 , the spring 251 and the support plate 223 together serve as the second limiting matching portion 222 , and the spring 251 abuts against the limiting plate 331 and the support plate 223 , thereby limiting the second transmission shaft 22 .

[0081] Combination Figure 1-2 As shown, an embodiment of the present disclosure provides a refrigerator 10, and the refrigerator 10 includes a door switch device 20 for the refrigerator 10 described in any one of the above embodiments.

[0082] The refrigerator 10 provided in the embodiment of the present disclosure includes the door switch device 20 for the refrigerator 10 described in any of the above embodiments, and thus has all the beneficial effects of the door switch device 20 for the refrigerator 10 described in any of the above embodiments, which will not be repeated here.

[0083] Optionally, combined Figure 1-3 As shown, the door body 30 includes a first side edge 311 and a second side edge 312 opposite to each other along a first direction, and the number of the door body opening and closing devices 20 is two, which are respectively arranged on the first side edge 311 and the second side edge 312 .

[0084] The door body switch device 20 is provided on the first side 311 and the second side 312 of the door body 30 which are opposite to each other along the first direction, and the first side 311 and the second side 312 of the door body 30 can be opened and closed. The refrigerator 10 can meet the requirements of two-way door opening, and the door body 30 can be opened through any side of the first side 311 and the second side 312, so that the application scenarios of the refrigerator 10 are more abundant. When the refrigerator 10 is placed with the compressor side against the wall, the refrigerator 10 can be rotated, and opening the door through the other side does not affect the use of the refrigerator 10. When the refrigerator 10 is used for supermarket sales, the refrigerator 10 can be placed in the middle aisle, and the door body 30 of the refrigerator 10 can be opened on both sides of the aisle, which can meet the needs of customers on both sides. When the refrigerator 10 is used for retail sales, the seller and the customer can take the items through the opposite sides, which is convenient and quick.

[0085] Optionally, combined Figure 1-2 As shown, the cabinet 40 is provided with a first positioning block 41 and a second positioning block 42 along the second direction, the first transmission shaft 21 is rotatably connected to the first positioning block 41 , and the second transmission shaft 22 is rotatably connected to the second positioning block 42 .

[0086] The first positioning block 41 and the second positioning block 42 are rotatably connected to the first transmission shaft 21 and the second transmission shaft 22 respectively, so that the door side 31 where the first transmission shaft 21 and the second transmission shaft 22 are located can rotate relative to the cabinet body 40.

[0087] Optionally, the first positioning block 41 is provided with a first door axis hole, and one end of the first transmission shaft 21 is inserted into the first door axis hole for positioning; the second positioning block 42 is provided with a second door axis hole, and one end of the second transmission shaft 22 is inserted into the second door axis hole for positioning.

[0088] Optionally, combined Figure 1-3 As shown, a first handle 34 is provided on the outer side of the first side 311, and a second handle 35 is provided on the outer side of the second side 312. The refrigerator 10 also includes a first sensor, a second sensor and a controller. The first sensor is provided on the first handle 34 and is configured to detect touch information of the first handle 34; the second sensor is provided on the second handle 35 and is configured to detect touch information of the second handle 35; the controller is connected to the first sensor and the second sensor, and is drivingly connected to the power mechanism 24, and is configured to control the power of the first side 311 and the second side 312 according to the detection information of the first sensor and the second sensor. The mechanism 24 works; wherein the power mechanism 24 includes a first power mechanism 24 arranged on the first side 311 and a second power mechanism 24 arranged on the second side 312. When both the first sensor and the second sensor detect touch information, the controller controls the first power mechanism 24 and the second power mechanism 24 not to work; when only the first sensor detects touch information, the controller controls the first power mechanism 24 to work so that the first side 311 is in an unlocked state; when only the second sensor detects touch information, the controller controls the second power mechanism 24 to work so that the second side 312 is in an unlocked state.

[0089] When both sides of the door body 30 along the first direction are in an unlocked state, the door body 30 can be opened from both sides. When both sides of the door body 30 are disconnected from the cabinet body 40, there is a risk of falling. Therefore, it is necessary to connect the door body 30 to the cabinet body 40 along at least one side of the first direction to ensure the safety of the refrigerator 10 during use.

[0090] The embodiment of the present disclosure detects whether the first handle 34 and the second handle 35 are touched by the first sensor and the second sensor respectively, and determines whether there is a need to open both sides of the door body 30 by the controller.

[0091] When the first handle 34 and the second handle 35 are touched at the same time, the first sensor and the second sensor can detect the touch information. The controller receives the detection information and controls the first power mechanism 24 and the second power mechanism 24 not to work, and the first side 311 and the second side 312 of the door body 30 are both in a locked state. When only the first sensor or the second sensor detects the touch information, the controller controls the first power mechanism 24 or the second power mechanism 24 set on the door body side 31 that detects the touch information to work, and the first transmission shaft 21 and the second transmission shaft 22 of the door body side 31 move to the retracted position, so that the door body side 31 is in an unlocked state.

[0092] The first sensor and the second sensor may be pressure sensors or other types of tactile sensors, as long as they can detect touch information of the first handle 34 or the second handle 35 .

[0093] Optionally, combined Figure 1-4 As shown, the refrigerator 10 also includes a third sensor 50, which is arranged on the door body 30, connected to the controller, and configured to detect the switch status information of the door body 30 and transmit the detection information to the controller; wherein, when the third sensor 50 detects the opening information of the door body 30, the controller controls the power mechanism 24 of the door body side 31 in the unlocked state to continue to work, so that the door body side 31 is continuously in the unlocked state; in the case where the door body switch device 20 for the refrigerator 10 includes a reset mechanism 25, when the third sensor 50 detects the closing information of the door body 30, the controller controls the power mechanism 24 not to work, and the reset mechanism 25 assists the first transmission shaft 21 and / or the second transmission shaft 22 to move to the extended position.

[0094] The controller controls the operation of the power mechanism 24 according to the opening and closing state information of the door body 30 detected by the third sensor 50 , so as to better realize the automatic control of the bidirectional opening and closing of the door of the refrigerator 10 .

[0095] Optionally, the third sensor 50 is a ball switch. The ball switch can detect whether the door body 30 is fully closed. When the door body 30 is open, the ball switch is opened; when the door body 30 is closed, the ball switch is closed.

[0096] The following description will be made by taking the opening and closing of the door body 30 from the first side 311 as an example.

[0097] After the refrigerator 10 is powered on, the user touches the first handle 34, and the controller receives the detection information of the first sensor, controls the electromagnetic coil 241 to be powered on to generate magnetic force, drives the first transmission shaft 21 of the first side 311 to move toward the middle to the retracted position, and the first transmission shaft 21 drives the gear 231 to rotate, and at the same time drives the second transmission shaft 22 to move toward the middle to the retracted position, and the first side 311 of the door body 30 is in the open position, and the user can open the door body 30 of the refrigerator 10 through the first side 311. When opening the door body 30, the first handle 34 is pulled upward, the ball switch circuit is disconnected, and the ball switch transmits the detection information of the opening of the door body 30 to the controller, and the controller controls the electromagnetic coil 241 to continuously supply power, drives the first transmission shaft 21 and the second transmission shaft 22 to be continuously located in the retracted position, so that the first side 311 is continuously in the unlocked state.

[0098] After the door 30 of the refrigerator 10 is closed, the ball switch circuit is connected, and the ball switch transmits the detection information of the closing of the door 30 to the controller. The controller controls the electromagnetic coil 241 to cut off the power, and the spring 251 in a compressed state pushes the second transmission shaft 22 outward under the action of its own elastic force, and pushes one end of the second transmission shaft 22 back into the second door shaft hole. The second transmission shaft 22 drives the gear 231 to rotate, and the gear 231 drives the first transmission shaft 21 and the second transmission shaft 22 to move in opposite directions. One end of the first transmission shaft 21 moves into the first door shaft hole, and the first side 311 is closed.

[0099] The door body 30 of the second side 312 is opened and closed in the same manner as the first side 311 .

[0100] If the first handle 34 and the second handle 35 are touched at the same time, the controller controls the electromagnetic coil 241 to be de-energized, and the first side edge 311 and the second side edge 312 of the door body 30 are both in a locked state.

[0101] It can be understood that when the third sensor 50 detects the closing information of the door body 30, the controller can also control the power mechanism 24 of the side edge 31 of the door body to work, driving the first transmission shaft and the second transmission shaft to move oppositely to the extended position, so that the side edge 31 of the door body is in a locked state.

[0102] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A door switch device for a refrigerator, the refrigerator comprising a door and a cabinet, characterized in that: The door switch device includes: A first transmission shaft, disposed at a first end of a side of the door body, capable of being rotatably connected to the cabinet body; A second transmission shaft is provided at a second end of the same door body side and can be rotatably connected to the cabinet body; A transmission mechanism is transmission-connected to the first transmission shaft and the second transmission shaft to drive the first transmission shaft and the second transmission shaft to move toward each other to a retracted position or move away from each other to an extended position relative to the door body; A power mechanism, drivingly connected to any one of the transmission mechanism, the first transmission shaft or the second transmission shaft; Among them, in the retracted position, the first transmission shaft and the second transmission shaft are separated from the cabinet body, and the side of the door body is in an unlocked state; in the extended position, the first transmission shaft and the second transmission shaft are connected to the cabinet body, and the side of the door body is in a locked state.

2. The door switch device for a refrigerator according to claim 1, characterized in that: The first transmission shaft and the second transmission shaft are arranged on the side of the door body along the first direction, The first transmission shaft is disposed at the first end of the side of the door body and extends along the second direction toward the second end of the side of the door body, the second transmission shaft is disposed at the second end of the side of the door body and extends along the second direction toward the first end of the side of the door body, and the first transmission shaft and the second transmission shaft are coaxially disposed along the second direction; The first direction is the length or width direction of the door body, and the second direction is a direction perpendicular to the first direction.

3. The door switch device for a refrigerator according to claim 2, characterized in that: The first transmission shaft is provided with a first rack, which extends along the second direction; the second transmission shaft is provided with a second rack, which extends along the second direction and is arranged opposite to the first rack along the first direction; the transmission mechanism includes: The gear is arranged between the first rack and the second rack, and is meshedly connected with the first rack and the second rack.

4. The door switch device for a refrigerator according to claim 1, characterized in that: The power mechanism includes: The electromagnetic coil is drivingly connected to the first transmission shaft and is configured to drive the first transmission shaft to move to a retracted position when energized.

5. The door switch device for a refrigerator according to any one of claims 1 to 4, characterized in that: Also includes: The reset mechanism is disposed on the first transmission shaft and / or the second transmission shaft, and is configured to assist the first transmission shaft and / or the second transmission shaft to move to the extended position.

6. The door switch device for a refrigerator according to any one of claims 1 to 4, characterized in that: Also includes: A first limiting portion is provided on the door body; The first transmission shaft is provided with a first position-limiting matching portion, and the first position-limiting portion cooperates with the first position-limiting matching portion to limit the movement range of the first transmission shaft relative to the door body; and / or, The second limiting portion is arranged on the door body; the second transmission shaft is provided with a second limiting matching portion, and the second limiting portion matches with the second limiting matching portion to limit the movement range of the second transmission shaft relative to the door body.

7. A refrigerator, characterized in that: It comprises a door switch device for a refrigerator as described in any one of claims 1 to 6.

8. The refrigerator according to claim 7, characterized in that: The side edge of the door body includes a first side edge and a second side edge that are opposite to each other along a first direction. There are two door body switch devices, which are respectively arranged on the first side edge and the second side edge.

9. The refrigerator according to claim 8, characterized in that: A first handle is disposed on the outer side of the first side, and a second handle is disposed on the outer side of the second side. The refrigerator further comprises: A first sensor, disposed on the first handle, configured to detect touch information of the first handle; A second sensor, disposed on the second handle, configured to detect touch information of the second handle; A controller connected to the first sensor and the second sensor, and drivingly connected to the power mechanism, and configured to control the power mechanism of the first side and the second side to work according to the detection information of the first sensor and the second sensor; Among them, the power mechanism includes a first power mechanism arranged on the first side and a second power mechanism arranged on the second side. When both the first sensor and the second sensor detect touch information, the controller controls the first power mechanism and the second power mechanism not to work; when only the first sensor detects touch information, the controller controls the first power mechanism to work so that the first side is in an unlocked state; when only the second sensor detects touch information, the controller controls the second power mechanism to work so that the second side is in an unlocked state.

10. The refrigerator according to any one of claims 7 to 9, characterized in that: Also includes: A third sensor is provided on the door body, connected to the controller, and configured to detect the switch status information of the door body and transmit the detection information to the controller; Among them, when the third sensor detects the door opening information, the controller controls the power mechanism on the side of the door body in the unlocked state to continue to work, so that the side of the door body is continuously in the unlocked state; when the door switch device for the refrigerator includes a reset mechanism, when the third sensor detects the door closing information, the controller controls the power mechanism not to work, and the reset mechanism assists the first transmission shaft and / or the second transmission shaft to move to the extended position.

Images