CN114300803B

CN114300803B - Connecting device, anti-theft device and battery pack system

Info

Publication number: CN114300803B
Application number: CN202111658432.8A
Authority: CN
Inventors: 夏智
Original assignee: Dongguan Poweramp Technology Ltd
Current assignee: Dongguan Poweramp Technology Ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2023-12-12
Anticipated expiration: 2041-12-30
Also published as: CN114300803A

Abstract

A connecting device comprises a first structural member, a first connecting member, a second structural member and a first elastic member. The first structural member extends in a first direction. The first connecting piece is connected with the first structural component, and the first connecting piece comprises a first part extending along a first direction, and the first part and the first structural component are arranged at intervals. The first portion has a first inner surface. The second structural member includes a first recess and a first inner side disposed within the first recess. The first portion is at least partially received in the first recess, and the second structure is rotatably coupled to the first portion and rotatable from a first position to a second position. The first elastic element is arranged between the second structural member and the first part, the first elastic element enables the second structural member to have a trend of returning to the first position from the second position, and at least part of the first inner surface is used for abutting against the first inner side surface and limiting the second structural member to the first position. The application also provides an anti-theft device and a battery pack system which are provided with the connecting device, and the anti-theft performance can be improved.

Description

Connecting device, anti-theft device and battery pack system

Technical Field

The present application relates to the field of battery anti-theft technologies, and in particular, to a connection device, an anti-theft device, and a battery pack system.

Background

At present, when the battery pack is installed in places such as outdoor cabinets or simple indoor cabinets in remote areas, the battery pack is easy to be stolen due to weak protective measures, and huge losses are caused for users.

Disclosure of Invention

In view of the foregoing, it is desirable to provide a connecting device, an anti-theft device, and a battery system that enhance anti-theft performance.

An embodiment of the application provides a connecting device, which comprises a first structural member, a first connecting member, a second structural member and a first elastic member. The first structural member extends in a first direction. The first connecting piece is connected with the first structural component, and the first connecting piece comprises a first part extending along a first direction, and the first part and the first structural component are arranged at intervals. The first portion has a first inner surface. The second structural member includes a first recess and a first inner side disposed within the first recess. The first portion is at least partially received in the first recess, and the second structure is rotatably coupled to the first portion and rotatable from a first position to a second position. The first elastic element is arranged between the second structural member and the first part, the first elastic element enables the second structural member to have a trend of returning to the first position from the second position, and at least part of the first inner surface is used for abutting against the first inner side surface and limiting the second structural member to the first position.

The connecting device can prevent burglary on the accommodated structural member, specifically, when the second structural member is installed in the connecting device, the second structural member contacts the accommodated structural member, the accommodated structural member applies a clockwise rotation force to the second structural member, and at the moment, the second structural member rotates clockwise. And resetting the second structural member to the first position and limiting the accommodated structural member until the second structural member is installed. The in-process that is being stolen by holding the structure can receive external force, and this external force passes through by holding the structure and transmits to the second structure to make by holding the structure and apply anticlockwise pivoted power to the second structure, the second structure is spacing in first position this moment, and the second structure is unable to be relieved by holding the spacing effect of structure, and then promotes burglary-resisting property.

In some embodiments of the application, the second position is any position in the rotational path of the second structural member that is separated from the first position.

In some embodiments of the application, the first connector further comprises a first connecting portion passing through the first portion and the second structural member in a first direction for connecting the second structural member to the first portion such that the second structural member is rotatable about the first connecting portion.

In some embodiments of the present application, the first portion is provided with a second recess, the first connecting portion is at least partially accommodated in the second recess, the first elastic member is sleeved on the first connecting portion, the first free end of the first elastic member is connected to the second structural member, and the second free end of the first elastic member is connected to the first portion, so that the second structural member has a tendency to return from the second position to the first position.

In some embodiments of the application, the second structural member includes a first sidewall extending in a second direction and a second sidewall extending in a third direction, as viewed in the first direction. The first direction, the second direction and the third direction are perpendicular to each other. The second structural member further comprises a first outer side surface and a second outer side surface, wherein the first outer side surface is arranged on one side of the first side wall, which is away from the first part, and the second outer side surface is arranged on one side of the second side wall, which is away from the first part. The relationship between the first spacing a between the second outer side surface and the axis of the first connecting portion in the second direction and the second spacing b between the first outer side surface and the axis of the first connecting portion in the third direction satisfies: a is larger than b, wherein the units of a and b are mm, so that the second structural member is driven to rotate away from the first position to the second position in the process of contacting the accommodated structural member with the second structural member, the contact area between the second structural member and the accommodated structural member in the first position is increased, and the clamping stability is improved.

In some embodiments of the present application, the relationship between the first pitch a and the second pitch b satisfies: a-b > 2; or a/b > 110%.

In some embodiments of the application, the second structural member includes a first sidewall extending in a second direction and a second sidewall extending in a third direction, as viewed in the first direction. The first direction, the second direction and the third direction are perpendicular to each other. The first inner surface extends in a second direction, and the first portion further includes a second inner surface extending in a third direction. In the second direction, a third distance c is provided between the second inner surface and the axis of the first connecting portion. Along the third direction, a fourth distance d is provided between the first inner surface and the axis of the first connecting portion. The relationship between the third pitch c and the fourth pitch d satisfies: c is less than d, wherein the units of c and d are mm, so that the second inner surface and the first inner side surface are not interfered with each other when the second structural member rotates, and the second structural member can rotate from the first position to the second position.

In some embodiments of the present application, the relationship between the fourth pitch d and the third pitch c satisfies: d-c > 0.5; or d/c > 105%.

In some embodiments of the application, the first structural member includes a first body and a first component, the first body extending in a first direction, the first component and the second structural member being spaced apart on the first body along the first direction, a projection of the first body being located within an area of the projection of the first component. The first component is used for limiting the rotation of the first main body, so that the risk that the connection failure is caused by the synchronous rotation of the second structural component along with the first main body is reduced.

In some embodiments of the application, the connecting device further comprises a third structural member provided with a first through hole, and the first component is at least partially and limitedly connected in the first through hole for limiting the rotation of the first main body.

In some embodiments of the application, the first structural member further comprises a third component, the first body comprising a first end and a second end disposed opposite to each other in the first direction, the third component being connected to the first end, the third component being provided with a third recess for receiving the second end of the first body in another connection device. When a plurality of connecting devices are needed to be used for the same cabinet, the third concave part of one connecting device accommodates the second end part of the other connecting device, so that synchronous control of the plurality of connecting devices is realized, and the use efficiency is improved.

In some embodiments of the application, the connection device further comprises a fourth structural member provided with a fourth recess. The fourth concave part is provided with a first opening and a first bottom surface which are oppositely arranged along the first direction. The first opening is used for penetrating the second end, the first bottom surface comprises a first section and a second section which are arranged continuously, the first section is used for supporting the second end, the second section is arranged obliquely relative to the first direction, and the second section is used for enabling the first main body to move along the direction opposite to the first direction when the second end contacts the second section. The second end part is controlled to be in contact connection with the first section or the second section, so that the position relation between the third structural part and the first component is controlled, and the connecting device is controlled to lock or unlock the accommodated structural part, thereby being convenient for personnel to operate.

The embodiment of the application also provides an anti-theft device, which comprises the connecting device in any embodiment. The anti-theft device further comprises a cabinet provided with a first space for accommodating at least part of the accommodated structural member. The first structural member is connected with the cabinet, and the second structural member is at least partially positioned in the first space. The second structural member contacts the accommodated structural member during the process of the accommodated structural member entering the first space, and rotates from the first position to the second position. When the second structural member moves to a preset position of the accommodated structural member, the first elastic member drives the second structural member to reset to the first position and limit the accommodated structural member.

In some embodiments of the application, the received structural member is provided with a fifth recess for receiving at least part of the second structural member.

In some embodiments of the application, the fifth recess comprises a first wall and a second wall disposed opposite in the fourth direction, the first wall being adapted to abut the second structural member.

The embodiment of the application also provides a battery pack system, which comprises the anti-theft device in any embodiment, wherein the accommodated structural part comprises a battery pack, the battery pack comprises a shell and a plurality of electric cores arranged in the shell, and the fifth concave part is arranged in the shell.

In the connecting device, the anti-theft device and the battery pack system provided with the connecting device, the connecting device can prevent the accommodated structural member from being stolen, particularly, when the second structural member is installed in the connecting device, the second structural member contacts the accommodated structural member, and the accommodated structural member applies a clockwise rotation force to the second structural member, and at the moment, the second structural member rotates in the clockwise direction. And resetting the second structural member to the first position and limiting the accommodated structural member until the second structural member is installed. The in-process that is being stolen by holding the structure can receive external force, and this external force passes through by holding the structure and transmits to the second structure to make by holding the structure and apply anticlockwise pivoted power to the second structure, the second structure is spacing in first position this moment, and the second structure is unable to be relieved by holding the spacing effect of structure, and then promotes burglary-resisting property.

Drawings

Fig. 1 is a schematic structural view of a connection device in an embodiment of the present application.

Fig. 2 is a schematic diagram showing a disassembled structure of the connecting device in an embodiment of the present application.

Fig. 3 is a schematic view of a structure of a second structural member of a connecting device in a first position according to an embodiment of the present application.

Fig. 4 is a schematic view of a second structural member of the connecting device in a second position according to an embodiment of the present application.

Fig. 5 is a schematic cross-sectional view of the connecting device according to an embodiment of the present application, taken perpendicular to the first direction.

Fig. 6 is a schematic cross-sectional view of the connecting device along a direction perpendicular to the first direction in an embodiment of the present application.

Fig. 7 is a schematic structural view of a third component of the connecting device in one embodiment of the present application.

Fig. 8 is a schematic structural view of a fourth structural member of the connecting device in one embodiment of the present application.

Fig. 9 is a schematic structural view of an anti-theft device in an embodiment of the present application.

Fig. 10 is a schematic view of the structure of an accommodated structure in an embodiment of the application.

Fig. 11 is a schematic view of a structure in which a connecting device locks a received structural member according to an embodiment of the present application.

Fig. 12 is a first view of the anti-theft device according to the embodiment of the present application in a locked state.

Fig. 13 is a second view of the anti-theft device according to the embodiment of the present application.

Fig. 14 is a schematic view of an unlocking structure of the anti-theft device according to an embodiment of the present application.

Fig. 15 is a schematic view of a battery pack system in an embodiment of the present application.

Description of the main reference signs

Connecting device 100

Anti-theft device 200

Battery pack system 300

First structural member 10

First body 11

First end 111

Second end 112

First part 12

First region 121

Second part 13

Third part 14

Third recess 141

First connector 20

First portion 21

First inner surface 211

Second concave portion 212

Second inner surface 213

Third inner surface 214

First connecting hole 215

Second connecting hole 216

Second portion 22

First split 221

Second split 222

Screw 223

First connecting portion 23

Axis L1

First convex part 231

First fastener 232

Second structural member 30

First concave portion 31

First inner side 311

First side wall 32

First outer side 321

Second side wall 33

Second outer side 331

Second inner side 332

Third side wall 34

First surface 35

First top wall 36

Third connecting hole 361

First bottom wall 37

Fourth connecting hole 371

First elastic member 40

First free end 41

Second free end 42

Third structural member 50

First through hole 51

Fourth structural member 60

Fourth recess 61

First opening 611

First bottom surface 612

First section 612a

Second section 612b

Cabinet 70

First space 71

Accommodated structural member 90

Fifth concave portion 91

First wall 911

Second wall 912

Third wall 913

Fourth wall 914

Battery pack 95

Shell 951

First direction A

Second direction B

Third direction C

First position D

Second position E

Fourth direction X

The application will be further described in the following detailed description in conjunction with the above-described figures.

Detailed Description

The following description of the technical solutions according to the embodiments of the present application will be given with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items. The terms "vertical," "horizontal," "left," "right," "top," "bottom," and the like are used herein for illustrative purposes only and are not intended to limit the application.

It will be appreciated that when the two elements are arranged in parallel/perpendicular, there may be an angle between the two elements that allows for a tolerance of 0 to 10% and that the two elements are greater than, equal to or less than the tolerance that allows for 0 to 10%.

Embodiments of the present application will be further described with reference to the accompanying drawings.

Referring to fig. 1 and 2, an embodiment of the present application provides a connection device 100, where the connection device 100 includes a first structural member 10, a first connecting member 20, a second structural member 30, and a first elastic member 40. The first structural member 10 extends in a first direction a. The first connecting member 20 is connected to the first structural member 10, and the first connecting member 20 includes a first portion 21 extending along the first direction a, where the first portion 21 and the first structural member 10 are spaced apart, and the first portion 21 has a first inner surface 211 (refer to fig. 2, the dotted line in fig. 2 is an auxiliary line, and the surface in the dotted line is the first inner surface 211).

The second structural member 30 is rotatably connected to the first portion 21 and is rotatable from a first position D, i.e. a position of the second structural member 30 relative to the first portion 21 without applying an external force to the connection device 100 (see fig. 3), to a second position E; the second position E is the position of the second structural member 30 relative to the first portion 21 in the case of an external force applied to the connection device 100 (see fig. 4).

The second structural member 30 comprises a first recess 31, the first recess 31 accommodating at least part of the first portion 21, the first recess 31 having a first inner side 311.

The first elastic member 40 is arranged between the second structural member 30 and the first portion 21. The amount of deformation of the first elastic member 40 gradually increases during rotation of the second structural member 30 relative to the first portion 21 from the first position D to the second position E, and the first elastic member 40 can cause the second structural member 30 to have a tendency to return to the first position D.

When the second structural member 30 is in the first position D, the first inner surface 211 and the first inner side 311 are disposed opposite to each other along the third direction C, and the second structural member 30 can only rotate in the second position E clockwise Fang Xiangwang when in the first position D (refer to fig. 5). In some embodiments, the third direction C is perpendicular to the first direction a.

In some embodiments, a first gap is present between the first inner surface 211 and the first inner side 311, which is arranged along the third direction C, optionally with a value between 0 and 0.2mm, facilitating assembly.

In some embodiments, the first inner surface 211 and/or the first inner side 311 may be provided with a first buffer layer (not shown), and at least a portion of the first inner surface 211 is connected to the first inner side 311 through the first buffer layer to achieve buffer and shock absorption between the first inner surface 211 and the first inner side 311. Alternatively, the first cushioning layer may be made of rubber.

In some embodiments, the second position E is any position in the rotational path of the second structural member 30 that is separated from the first position D. Optionally, the rotation angle between the second position E and the first position D is less than or equal to 90 °.

With continued reference to fig. 2, in some embodiments, the first connector 20 further includes a second portion 22, the second portion 22 being configured to connect the first portion 21 to the first structural member 10. The first portion 21 is spaced from the first structural member 10 by the support of the second portion 22. In some embodiments, the first portion 21 and the first structural member 10 are spaced apart in a direction perpendicular to the first direction a.

In some embodiments, the second portion 22 includes a first split 221 and a second split 222, where the first portion 21 is connected to the first split 221, and the second split 222 is clamped to the first structural member 10 in cooperation with the first split 221. Optionally, the second split 222 is used to fix with the first split 221 by a screw 223.

With continued reference to fig. 2, in some embodiments, the first connecting member 20 further includes a first connecting portion 23, where the first connecting portion 23 extends along the first direction a. The first connection 23 may connect the second structural member 30 to the first portion 21, and the second structural member 30 may rotate about the first connection 23. Specifically, the first connector 20 has an axis L1, and the second structural member 30 is rotatable about the axis L1.

In some embodiments, the first connecting portion 23 has a first protrusion 231 at one end and a detachable first fastener 232 at the other end, and the first protrusion 231 and the first fastener 232 are used to limit the first portion 21 and the second structural member 30.

In some embodiments, the first portion 21 is provided with a second recess 212, and a first connection hole 215 and a second connection hole 216 communicating with the second recess 212, the first connection hole 215 and the second connection hole 216 being disposed opposite in the first direction a. The second structural member 30 is further provided with a third connecting hole 361 and a fourth connecting hole 371 that communicate with the first recess 31, the third connecting hole 361 and the fourth connecting hole 371 being disposed opposite to each other in the first direction a.

The first and second connection holes 215 and 216 are received in the first recess 31 of the second structural member 30, and the first connection portion 23 passes through the third connection hole 361, the first connection hole 215, the second connection hole 216, and the fourth connection hole 371, and the first connection portion 23 is at least partially received in the second recess 212. The first protruding portion 231 is disposed at one end of the first connecting portion 23 located at the second structural member 30, and the first fastening member 232 is disposed at the other end of the first connecting portion 23 located at the second structural member 30.

The first elastic member 40 is sleeved on the portion of the first connecting portion 23 located in the second recess 212, the first free end 41 of the first elastic member 40 is connected to the second structural member 30, and the second free end 42 of the first elastic member 40 is connected to the first portion 21. Alternatively, the first elastic member 40 is a torsion spring.

Referring to fig. 3, when the second structural member 30 is not subjected to an external force, the second structural member 30 is at the first position D. The first inner surface 211 and the first inner side 311 are disposed opposite to each other in the third direction C such that the second structural member 30 can only rotate in the clockwise Fang Xiangwang second position E when in the first position D.

When the second structural member 30 receives the external force F, if the direction of the external force F is the same as the direction of the second structural member 30 at the first position D, the second structural member 30 is rotated away from the first position D to the second position E against the elastic force of the first elastic member 40; if the direction of the external force F is opposite to the direction of the second structural member 30 in the first position D, the external force F causes at least part of the first inner surface 211 to abut the first inner side 311 and limit the second structural member 30 in the first position D.

It will be appreciated that in some embodiments, when there is an assembly tolerance for the connection device 100, if the direction of the external force F is opposite to the direction of the second structural member 30 in the first position D, the external force F may reverse the second structural member 30 until at least a portion of the first inner surface 211 abuts the first inner side 311.

The above-mentioned connection device 100 can prevent theft of the received structural member, specifically, when the second structural member 30 is installed in the connection device 100, the second structural member 30 contacts the received structural member, and the received structural member applies a clockwise rotation force to the second structural member 30, and at this time, the second structural member 30 rotates in a clockwise direction. And after the second structural member 30 is installed, the second structural member 30 is reset to the first position D and limited by the accommodated structural member. The received structure can receive external force by the in-process of being stolen, and this external force passes through the received structure and transmits to second structure 30 to make the power of being exerted anticlockwise pivoted to second structure 30 by the received structure, second structure 30 is spacing in first position D this moment, and the spacing effect of second structure 30 to the received structure can't be relieved, and then promotes burglary-resisting property.

It will be appreciated that in some embodiments, the second structural member 30 may only rotate in a counterclockwise direction to the second position E when in the first position D.

Referring to fig. 5, the second structural member 30 includes a first side wall 32 extending in the second direction B and a second side wall 33 extending in the third direction C. The second direction B and the third direction C are both perpendicular to the first direction a. The second direction B and the third direction C are arranged in an intersecting manner. In some embodiments, the second direction B is perpendicular to the third direction C.

The second structural member 30 further includes a first top wall 36 and a first bottom wall 37 (refer to fig. 2), the first top wall 36 and the first bottom wall 37 are disposed opposite to each other along the first direction a, a third connecting hole 361 is disposed in the first top wall 36, and a fourth connecting hole 371 is disposed in the first bottom wall 37. The first side wall 32, the second side wall 33, the first top wall 36, and the first bottom wall 37 are connected and form the first recess 31.

The first inner side 311 is provided on a side of the first sidewall 32 facing the first portion 21. The second structural member 30 further includes a first outer side 321 and a second outer side 331, wherein the first outer side 321 is disposed on a side of the first side wall 32 facing away from the first portion 21, and the second outer side 331 is disposed on a side of the second side wall 33 facing away from the first portion 21.

Along the second direction B, the second outer side 331 has a first distance amm from the axis L1 of the first connecting portion 23. Along the third direction C, the first outer side 321 has a second distance bmm from the axis L1 of the first connecting portion 23. The relationship between the first pitch a and the second pitch b satisfies: a is greater than b, so that the second structural member 30 is driven to rotate from the first position D to the second position E in the process of contacting the accommodated structural member with the second structural member 30, the contact area between the second structural member 30 and the accommodated structural member in the first position D is increased, and the clamping stability is improved.

In some embodiments, the relationship between the first pitch a and the second pitch b satisfies: a-b > 2; or a/b > 110%.

Alternatively, the value of a-b may be one of 2.5, 3, 3.5, 4, 4.5, 5, and other values. The value of a/b may be one of 115%, 120%, 125%, 135%, 145%, 150%, and other values.

In some embodiments, the second structure 30 further includes a third sidewall 34, the third sidewall 34 being positioned between the first sidewall 32 and the second sidewall 33, the third sidewall 34 being disposed in an arc shape, as viewed in the first direction a, to contact the received structure and guide the second structure 30 to rotate the second structure 30 from the first position D to the second position E. The first side wall 32, the second side wall 33, the third side wall 34, the first top wall 36 and the first bottom wall 37 are connected and form the first recess 31.

In some embodiments, the fillet radius of the third sidewall 34 is greater than 1mm.

Alternatively, the fillet radius of the third sidewall 34 may be one of 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, and other values

In some embodiments, the second structural member 30 further includes a first surface 35, the first surface 35 being provided at an end of the second sidewall 33 extending in the third direction C. The first surface 35 is used to limit the received structure. Optionally, the surface of the first surface 35 may be provided with a second buffer layer to reduce the risk of scratches caused by direct contact between the first surface 35 and the received structure. Alternatively, the second cushioning layer may be made of rubber.

Referring to fig. 6, the first inner surface 211 extends along the second direction B, and the first portion 21 further includes a second inner surface 213 extending along the third direction C. The second recess 212 is recessed into the first portion 21 from the first inner surface 211 and the second inner surface 213.

Along the second direction B, the second inner surface 213 has a third spacing cmm from the axis L1 of the first connecting portion 23. Along the third direction C, the first inner surface 211 has a fourth spacing dmm from the axis L1 of the first connecting portion 23. The relationship between the third pitch c and the fourth pitch d satisfies: c < D so that the second inner surface 213 does not interfere with the first inner surface 311 when the second structural member 30 is rotated, thereby allowing the second structural member 30 to rotate from the first position D to the second position E.

In some embodiments, the relationship between the fourth spacing d and the third spacing c satisfies: d-c > 0.5; or d/c > 105%.

Alternatively, the value of d-c may be one of 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, and other values. The value of d/c may be one of 110%, 115%, 120%, 125%, 135%, 145%, 150%, and other values.

In some embodiments, the first portion 21 further includes a third inner surface 214, the third inner surface 214 being located between the first inner surface 211 and the second inner surface 213, the third inner surface 214 being disposed in an arc shape when viewed along the first direction a, such that the second structural member 30 does not interfere with the third inner surface 214 when the second structural member 30 rotates the first portion 21, and such that the second structural member 30 can rotate from the first position D to the second position E.

In some embodiments, the second structural member 30 further includes a second inner side 332, the second inner side 332 being disposed on a side of the second sidewall 33 that faces the first portion 21. The relationship between the fifth pitch emu between the second inner side 332 and the axis of the first connection 23, and the third pitch cmm and the fourth pitch dmm satisfies: e > c+d such that the second inner side 332 rotates over a larger space than the first portion 21 interferes with, thereby allowing the second structure 30 to rotate from the first position D to the second position E.

In some embodiments, the relationship between the fifth spacing e, and the third spacing c and the fourth spacing d satisfies: e- (c c+d) d) > 2; or e/(c+d) > 110%.

Referring again to fig. 3 and 4, the first structural member 10 includes a first body 11 and a first component 12. The first body 11 extends in a first direction a. The first member 12 and the first connector 20 are provided on the first body 11 at intervals along the first direction a. Specifically, the second portion 22 of the first connector 20 is connected to the first body 11 and is spaced from the first member 12. In some embodiments, the first structural member 10 further includes two second parts 13, where the two second parts 13 are connected to the first body 11 and abut against two ends of the second portion 22 along the first direction a, so as to limit the second portion 22, thereby improving structural stability.

In the first direction a, the projection of the first body 11 is located in the area of the projection of the first part 12, and the first part 12 is used to limit the rotation of the first body 11, thereby reducing the risk of connection failure caused by the synchronous rotation of the second structural member 30 following the first body 11.

The connecting device 100 further comprises a third structural member 50, wherein the third structural member 50 is provided with a first through hole 51, and the first component 12 is at least partially and limitedly connected in the first through hole 51 so as to limit the rotation of the first main body 11. The first member 12 is further provided with a first region 121 at an end facing the first connection member 20, and the first region 121 gradually becomes smaller toward the first body 11 along the first direction a so that the first region 121 can rotate in the first through hole 51.

When it is desired to unlock the anti-theft function and remove the accommodated structure held by the second structure 30, the first part 12 is moved in the opposite direction of the first direction a, so that the first region 121 is located in the first through hole 51, or so that the first part 12 is disengaged from the first through hole 51. At this time, the first main body 11 may rotate in the first through hole 51, so that the second structural member 30 rotates synchronously with the first main body 11, thereby releasing the limitation of the second structural member 30 on the accommodated structural member, and facilitating the removal of the accommodated structural member. By controlling the positional relationship of the third structure 50 and the first component 12, the connection device 100 is controlled to lock or unlock the received structure for convenient personnel operation.

In some embodiments, along the first direction a, the projection of the first body 11 is circular, and the projection of the first member 12 and the first through hole 51 is quadrilateral. The first body 11 is circular in projection so that the first member 12 can freely rotate after being separated from the first through hole 51. The projection of the first member 12 and the first through hole 51 in a quadrilateral shape facilitates the restriction of the first body 11 to rotate by the first member 12 in the first through hole 51.

In some embodiments, the third structural member 50 is provided with a plurality of first through holes 51 to simultaneously retain a plurality of first components 12. Alternatively, the number of the first through holes 51 is two.

Referring to fig. 7, the first structural member 10 further includes a third component 14. The first body 11 includes a first end 111 and a second end 112 disposed opposite in a first direction, and the third member 14 is connected to the first end 111. The third part 14 is intended to be connected to the second end 112 of the first body 11 of the other connection device 100.

Referring to fig. 8, in some embodiments, the third component 14 is provided with a third recess 141, and the third recess 141 is configured to receive the second end 112 of the first body 11 of the other connection device 100.

In some embodiments, each accommodated structure corresponds to one connecting device 100, and when the same cabinet needs to use a plurality of connecting devices 100, the third recess 141 of one connecting device 100 accommodates the second end 112 of another connecting device 100, so as to achieve synchronous control over the plurality of connecting devices 100, and improve the use efficiency.

With continued reference to fig. 8, the connection apparatus 100 further includes a fourth structural member 60. The fourth structural member 60 is provided with a fourth recess 61, and the fourth recess 61 is provided with a first opening 611 and a first bottom surface 612 which are oppositely arranged along the first direction a. The first opening 611 is for passing through the second end 112. The first bottom surface 612 includes a first section 612a and a second section 612b that are disposed in series. The first section 612a is for supporting the second end 112. The second section 612b is disposed obliquely to the first direction a, in particular, there is an acute angle between the second section 612b and the first direction a. When the second end 112 contacts the second section 612b, the first body 11 is moved obliquely along the first section 612a to locate the first region 121 in the first through hole 51 or to disengage the first member 12 from the first through hole 51.

By controlling the contact connection between the second end 112 and the first section 612a or the second section 612b, the positional relationship between the third structural member 50 and the first component 12 is controlled, so as to control the connecting device 100 to lock or unlock the accommodated structural member, which is convenient for personnel to operate.

Referring to fig. 9, an anti-theft device 200 according to an embodiment of the present application includes any of the above-described connection devices 100. The anti-theft device 200 further comprises a cabinet 70, the cabinet 70 being provided with a first space 71, the first space 71 being adapted to receive at least part of the received structural member 90.

The first structural member 10 is connected to the cabinet 70 and the second structural member 30 is at least partially located in the first space 71. The received structural member 90 is pushed into the corresponding first space 71, the second structural member 30 contacts the received structural member 90 during entry of the received structural member 90 into the first space 71, and the received structural member 90 applies a clockwise rotational force to the second structural member 30, at which time the second structural member 30 rotates in a clockwise direction and from the first position D to the second position E. When the second structural member 30 moves to the preset position of the accommodated structural member 90, the first elastic member 40 drives the second structural member 30 to return to the first position D and limit the accommodated structural member 90.

Referring to fig. 10 and 11, in some embodiments, the received structural member 90 is provided with a fifth recess 91, and the fifth recess 91 is configured to receive at least a portion of the second structural member 30.

In some embodiments, the fifth recess 91 includes a first wall 911, a second wall 912, a third wall 913, and a fourth wall 914. In the fourth direction X, the first wall 911 and the second wall 912 are disposed opposite to each other. Optionally, the received structural member 90 is pushed into the first space 71 in the fourth direction X. When the second structural member 30 is disposed in the fifth recess 91, the first wall 911 and the first surface 35 are disposed opposite each other, the second wall 912 and the first outer side 321 are disposed opposite each other, and/or the second wall 912 and the first outer side 321 are disposed opposite each other. The third wall 913 is disposed opposite the first bottom wall 37 and the fourth wall 914 is disposed opposite the first top wall 36.

The first wall 911 is used to abut the second structural member 30 to limit the received structural member 90 by the second structural member 30. Optionally, along the fourth direction X, the projection of the first surface 35 is located within the projection of the first wall 911.

Optionally, the first wall 911 is perpendicular to the fourth direction X for abutting the second structural member 30. The second wall 912 is arranged obliquely to the first wall 911 for rotating the second structural part 30 out of the fifth recess 91 in an oblique direction of the second wall 912 in the event of unlocking of the connecting device 100.

Referring to fig. 12, in some embodiments, the third structural member 50 is fixedly connected to the cabinet 70, and the connection device 100 is controlled to lock or unlock the accommodated structural member 90 by controlling the positional relationship between the third structural member 50 and the first component 12, so as to facilitate the operation of personnel.

In some embodiments, the fourth structure 60 is mounted in a relatively concealed location in the cabinet 70, which is inconvenient for a thief to find. By controlling the contact connection between the second end 112 and the first section 612a or the second section 612b, the positional relationship between the third structural member 50 and the first component 12 is controlled, and thus the connecting device 100 is controlled to lock or unlock the accommodated structural member 90, which is convenient for personnel to operate.

In some embodiments, the cabinet 70 is provided with a plurality of first spaces 71 accommodating the accommodated structural members 90, each accommodated structural member 90 being pushed into the corresponding first space 71 in the fourth direction X. Each accommodated structure 90 correspondingly uses one connecting device 100, wherein the third concave part 141 of one connecting device 100 accommodates the second end 112 of another connecting device 100, so that synchronous control of a plurality of connecting devices 100 is realized, and the use efficiency is improved. It will be appreciated that the plurality of connection devices 100 may be controlled by one fourth structural member 60, specifically, by controlling the contact connection between the second end 112 of the outermost side of the plurality of connection devices 100 and the first segment 612a or the second segment 612b, the positional relationship between the plurality of third structural members 50 and the corresponding first component 12 is controlled, so as to achieve synchronous control and improve the use efficiency.

In use, when the connecting device 100 is in the initial state, i.e. the second end 112 is in contact with the first section 612a, the first component 12 is at least partially and limitedly connected to the first through hole 51, and the second structural member 30 is in the first position D without external force.

Referring to fig. 12 and 13 together, when the accommodated structure 90 is pushed into the cabinet 70, the accommodated structure 90 contacts with the second structure 30, and the accommodated structure 90 applies a clockwise rotation force to the second structure 30, and at this time, the second structure 30 rotates clockwise and rotates from the first position D to the second position E. When the first elastic member 40 drives the second structural member 30 to return to the first position D, the second structural member 30 is located in the fifth recess 91, and the connecting device 100 is in the locked state.

In the locked state of the connection device 100, the received structural member 90 is subjected to an external force in a direction opposite to the fourth direction X during theft, and the external force is transmitted to the second structural member 30 through the received structural member, so that the received structural member 90 applies a force rotating counterclockwise to the second structural member 30. At this time, the first inner surface 211 and the first inner side 311 cooperate to limit the turning of the second structural member 30 at the first position D, so that the second structural member 30 is retained in the fifth recess 91 of the accommodated structural member 90, and the accommodated structural member 90 cannot be pulled out of the cabinet 70, thereby playing an anti-theft effect.

Referring to fig. 14, when the anti-theft function is to be unlocked and the accommodated structure 90 is to be pulled out of the cabinet 70, the fourth structure 60 is moved to bring the second end 112 into contact with the second section 612b, so that the first body 11 moves in the opposite direction of the first direction a, and the first region 121 is located in the first through hole 51, or the first component 12 is separated from the first through hole 51. At this time, the first body 11 is in a rotatable state, and the second structural member 30 is rotated out of the fifth recess 91 in an inclined direction of the second wall 912 by rotating the first body 11, so that the cabinet 70 can be easily drawn out of the accommodated structural member.

Compared with the existing passive anti-theft mode of transmitting the stolen information to the user through electronic anti-theft devices such as gyroscopes/buzzers/GPS and the like installed in the accommodated structural member, the anti-theft device 200 realizes the active anti-theft function and has the advantages of simple structure and convenience in operation.

Referring to fig. 15, an embodiment of the present application provides a battery system 300 including any of the anti-theft devices 200 described above, and the received structure 90 includes a battery pack 95. The battery pack 95 includes a housing 951 and a plurality of battery cells (not shown) provided in the housing 951, and the fifth recess 91 is provided in the housing 951. The battery pack system 300 can lock the battery pack 95 through the second structural member 30, and can unlock the anti-theft function through the third structural member 50 and the fourth structural member 60, so that the battery pack 95 can be conveniently pulled out for maintenance in a later period.

In summary, in the connection device 100, the anti-theft device 200 and the battery pack system having the connection device 100 mounted thereon according to the present application, the connection device 100 can prevent theft of the received structural member, specifically, the second structural member 30 contacts the received structural member when the second structural member 30 is mounted in the connection device 100, and the received structural member applies a clockwise rotation force to the second structural member 30, and at this time, the second structural member 30 rotates in the clockwise direction. And after the second structural member 30 is installed, the second structural member 30 is reset to the first position D and limited by the accommodated structural member. The received structure can receive external force by the in-process of being stolen, and this external force passes through the received structure and transmits to second structure 30 to make the power of being exerted anticlockwise pivoted to second structure 30 by the received structure, second structure 30 is spacing in first position D this moment, and the spacing effect of second structure 30 to the received structure can't be relieved, and then promotes burglary-resisting property. The connecting device 100 has simple structure, simple operation of locking the accommodated structural member and unlocking the anti-theft function, and can improve the use efficiency.

Further, other variations within the spirit of the present application will occur to those skilled in the art, and it is intended, of course, that such variations be included within the scope of the present application as disclosed herein.

Claims

1. A connection device, comprising:

a first structural member extending in a first direction;

a first connector connecting the first structural members, the first connector including a first portion extending in the first direction, the first portion being spaced from the first structural members, the first portion having a first inner surface;

the second structural member comprises a first concave part and a first inner side surface arranged in the first concave part, the first part is at least partially accommodated in the first concave part, the second structural member is rotatably connected with the first part and can rotate from a first position to a second position, and the second position is any position separated from the first position in a rotation track of the second structural member;

the first elastic piece is arranged between the second structural piece and the first part, the first elastic piece enables the second structural piece to have a trend of recovering to the first position from the second position, and at least part of the first inner surface is used for abutting against the first inner side surface and limiting the second structural piece to the first position when the direction of external force applied to the second structural piece is opposite to the direction of the second structural piece in the first position.

2. The connection device of claim 1, wherein the first connection member further comprises a first connection portion passing through the first portion and the second structure in the first direction.

3. The connecting device according to claim 2, wherein the first portion is provided with a second recess, the first connecting portion is at least partially accommodated in the second recess, the first elastic member is sleeved on the first connecting portion, the first free end of the first elastic member is connected to the second structural member, and the second free end of the first elastic member is connected to the first portion.

4. The connection device of claim 2, wherein the second structural member comprises a first side wall extending in a second direction and a second side wall extending in a third direction, the first direction, the second direction, and the third direction being perpendicular to each other;

the second structural member further comprises a first outer side surface and a second outer side surface, the first outer side surface is arranged on one side of the first side wall, which is away from the first portion, the second outer side surface is arranged on one side of the second side wall, which is away from the first portion, a first distance a between the second outer side surface and the axis of the first connecting portion along the second direction, and a second distance b between the first outer side surface and the axis of the first connecting portion along the third direction are as follows: a > b, wherein a and b are in mm.

5. The connection device according to claim 4, wherein the relationship between the first pitch a and the second pitch b satisfies: a-b > 2; or a/b > 110%.

6. The connection device of claim 2, wherein the second structural member comprises a first side wall extending in a second direction and a second side wall extending in a third direction, the first direction, the second direction, and the third direction being perpendicular to each other;

the first inner surface extends along the second direction, the first portion further includes a second inner surface extending along the third direction, a third distance c is provided between the second inner surface and the axis of the first connecting portion along the second direction, a fourth distance d is provided between the first inner surface and the axis of the first connecting portion along the third direction, and the relationship between the third distance c and the fourth distance d is satisfied: c < d, wherein the units of c and d are mm.

7. The connection device according to claim 6, wherein the relationship between the fourth pitch d and the third pitch c satisfies: d-c > 0.5; or d/c > 105%.

8. A connection device as claimed in claim 1, wherein the first structural member comprises a first body and a first component, the first body extending in the first direction, the first component and the second structural member being spaced apart on the first body in the first direction, the projection of the first body being located within the area of the projection of the first component.

9. The connection device according to claim 8, further comprising a third structural member provided with a first through hole, the first member being at least partially limitedly connected in the first through hole.

10. A connection device as claimed in claim 8, wherein the first structural member further comprises a third component, the first body comprising a first end and a second end disposed opposite in the first direction, the third component being connected to the first end, the third component being provided with a third recess for receiving the second end of the first body of the other connection device.

11. The connection device of claim 10, further comprising a fourth structure provided with a fourth recess provided with a first opening and a first bottom surface disposed opposite each other in the first direction, the first opening being adapted to pass through the second end portion, the first bottom surface comprising a first section and a second section disposed in series, the first section being adapted to support the second end portion, the second section being disposed obliquely to the first direction, the second section being adapted to move the first body in a direction opposite the first direction when the second end portion contacts the second section.

12. An anti-theft device comprising a connection device as claimed in any one of claims 1 to 11, further comprising a cabinet provided with a first space for receiving at least part of the received structural member,

the first structural component is connected with the cabinet, the second structural component is at least partially located in the first space, the second structural component is in contact with the accommodated structural component in the process that the accommodated structural component enters the first space and rotates from the first position to the second position, and when the second structural component moves to the preset position of the accommodated structural component, the first elastic component drives the second structural component to reset to the first position and limit the accommodated structural component.

13. The anti-theft device of claim 12, wherein said received structure is provided with a fifth recess for receiving at least a portion of said second structure.

14. The anti-theft device of claim 13, wherein said fifth recess comprises first and second walls disposed opposite in a fourth direction, the first wall for abutting against the second structure.

15. A battery system comprising the anti-theft device of claim 13, wherein the received structure comprises a battery pack comprising a housing and a plurality of cells disposed within the housing, and wherein the fifth recess is disposed in the housing.