Battery pack and electric device

Abstract

The embodiment of the invention relates to a battery pack and an electric device. The battery pack comprises a box body and a limiting mechanism, the box body is provided with a sliding groove, the sliding groove extends in the first direction, the limiting mechanism is detachably connected into the sliding groove, the limiting mechanism can move and / or rotate relative to the sliding groove, and the limiting mechanism is used for limiting the position posture of a wire harness; the limiting mechanism comprises a limiting piece, a clamping assembly and a fastening assembly, the fastening assembly is connected to the limiting piece and the clamping assembly at the same time, and the clamping assembly limits the position posture of the wire harness relative to the box body under the action of the fastening assembly. According to the battery pack provided by the embodiment of the invention, the rationality of wiring harness layout can be improved, so that the stability of a circuit is improved, and the conditions of sampling wiring harness fluctuation and pulling caused by subsequent vibration of the battery pack are greatly reduced.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery pack and an electrical device. Background Art

[0002] The wiring harnesses in the battery are generally fixed. Currently, most of the wiring harnesses in the battery are fixed centrally on the middle beam through plastic clips, or the shorter sampling harnesses are directly left hanging in the air.

[0003] However, during the driving of electric vehicles, the sampling harness will fluctuate and be pulled due to vibration, which can easily cause a virtual connection between the sampling harness and the plug-in, resulting in the vehicle's BMS system reporting instantaneous or long-term voltage, temperature or current jump faults, and increasing the difficulty of subsequent troubleshooting. Summary of the invention

[0004] In view of this, the embodiments of the present application provide a battery pack and an electrical device for solving the problem that the connection between the existing collection harness and the plug-in is prone to form a false connection.

[0005] In a first aspect, an embodiment of the present application provides a battery pack, comprising:

[0006] A box body, having a slide groove, wherein the slide groove extends along a first direction, and the first direction is the length direction of the box body;

[0007] A limiting mechanism, which is detachably connected to the slide slot, and the limiting mechanism can move and / or rotate relative to the slide slot, and the limiting mechanism is used to limit the position and posture of the wiring harness;

[0008] Wherein, the limiting mechanism comprises:

[0009] a stopper, at least part of which is located in the slide groove;

[0010] A clamping assembly, which is detachably connected to the stopper, and the wiring harness is inserted into the clamping assembly;

[0011] A fastening assembly is connected to the limiting member and the clamping assembly at the same time, and the clamping assembly limits the position and posture of the wiring harness relative to the box under the action of the fastening assembly.

[0012] In conjunction with the first aspect of the present application, in an optional implementation, the clamping assembly includes:

[0013] A first clamping assembly, which is detachably connected to the stopper, and the orthographic projection of the first clamping assembly in a second direction is larger than the width of the slide slot, and the second direction is the height direction of the box body;

[0014] A second clamping assembly, which is arranged opposite to the first clamping assembly and is detachably connected, and the wiring harness is placed between the second clamping assembly and the first clamping assembly;

[0015] Wherein, the first clamping assembly and the second clamping assembly are both in contact with the surface of the wiring harness under the action of the fastening assembly.

[0016] In combination with the first aspect of the present application, in an optional embodiment, the limiting member has a first limiting portion and a second limiting portion, one end of the first limiting portion along the second direction is connected to the clamping assembly, and is located in the slide slot and can move and / or rotate relative to the slide slot;

[0017] The second limiting portion is connected to the other end of the first limiting portion along the second direction and is located at the outer bottom of the slide slot away from the clamping assembly, and can abut against the outer bottom of the slide slot under the action of the fastening assembly.

[0018] In combination with the first aspect of the present application, in an optional embodiment, the limiting member further has a third limiting portion, which cooperates with the first limiting portion to be clamped in the slide groove and is slidably connected to the slide groove, and the third limiting portion is a slide plate extending outward from the outer wall of the first limiting portion.

[0019] In combination with the first aspect of the present application, in an optional embodiment, the first limiting portion has a first mounting hole with a circular cross-section, the first mounting hole extends along the second direction, and the inner wall of the first mounting hole is provided with clamping protrusions distributed along the circumference thereof;

[0020] The first clamping assembly is provided with a clamping groove with a circular cross-section, and the clamping groove is rotatably engaged with the clamping protrusion, so that the first clamping assembly rotates relative to the first limiting portion.

[0021] In combination with the first aspect of the present application, in an optional embodiment, the fastening assembly includes a first fastener and a second fastener, the second fastener is embedded in the limiting member, one end of the first fastener is movably connected to the second fastener, and the other end is movably connected to the clamping assembly.

[0022] In conjunction with the first aspect of the present application, in an optional implementation, the first pressing assembly includes:

[0023] A first pressing member, which is detachably connected to the limiting member;

[0024] A first elastic member, which is connected to the first pressing member, and a plurality of first wire-passing grooves are provided on the surface of the first elastic member, wherein the first wire-passing grooves are used to place the wire harness;

[0025] The second pressing assembly comprises:

[0026] A second pressing member, which is detachably connected to the first pressing member;

[0027] A second elastic member is connected to the second clamping member, and a plurality of second wire-passing grooves are arranged on the surface of the second elastic member. The second wire-passing grooves are spliced ​​with the first wire-passing grooves to form a wire-passing hole for accommodating and matching the diameter of the wire harness.

[0028] In combination with the first aspect of the present application, in an optional embodiment, the box body includes a beam and a bracket, the bracket is connected to the side wall of the beam, a plurality of sampling plug-ins are connected to the top of the beam, the slide groove is a slot hole provided on the surface of the bracket, and the slot hole extends along the first direction.

[0029] In combination with the first aspect of the present application, in an optional implementation manner, the slide groove is a dovetail groove of a dovetail structure.

[0030] In a second aspect, an embodiment of the present application provides an electrical device, comprising a battery pack according to any one of the first aspects.

[0031] The battery pack provided in the embodiment of the present application can adjust the position and posture of the clamping assembly according to the direction of the wiring harness and the reserved tightness, thereby adjusting the position and posture of the wiring harness, and after the adjustment is completed, the fastening assembly is used to make the clamping assembly and the limit piece abut against the box body, and the clamping assembly is clamped on the wiring harness; the battery pack can improve the rationality of the wiring harness layout, thereby improving the stability of the line, so as to greatly reduce the subsequent vibration of the battery pack causing the sampling harness to fluctuate and pull, resulting in a virtual connection between the sampling harness and the plug-in, and can also quickly find the fault point during the fault period and improve maintenance efficiency.

[0032] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0034] Figure 1 A schematic diagram of a partial structure of a battery pack provided in an embodiment of the present application with a wiring harness and a sampling plug-in installed;

[0035] Figure 2 A schematic diagram of the positional relationship between the limiting mechanism and the bracket in the battery pack provided in an embodiment of the present application;

[0036] Figure 3 A schematic diagram of the structure of a limiting mechanism in a battery pack provided in an embodiment of the present application;

[0037] Figure 4 for Figure 1 Schematic diagram of the cross section at AA in the middle;

[0038] Figure 5 for Figure 4 Enlarged view of point C in the middle;

[0039] Figure 6 A schematic diagram of the structure of a position limiting member in a battery pack provided in an embodiment of the present application;

[0040] Figure 7 A schematic diagram of the structure of a clamping assembly in a battery pack provided in an embodiment of the present application;

[0041] Figure 8 A schematic diagram of the partial structure of a battery pack equipped with a wiring harness according to another embodiment of the present application.

[0042] Reference numerals:

[0043] a. Sampling plug-in; b. Wire harness;

[0044] 10. Box body; 11. Crossbeam; 12. Bracket; 121. Slideway; 1211. Dovetail groove;

[0045] 20. Limiting mechanism; 21. Limiting member; 211. First limiting portion; 2111. First mounting hole; 2112. Clamping protrusion; 212. Second limiting portion; 213. Third limiting portion;

[0046] 22. Clamping assembly; 221. First clamping assembly; 2211. First clamping member; 2212. First elastic member; 2213. First wire groove; 222. Second clamping assembly; 2221. Second clamping member; 2222. Second elastic member; 2223. Second wire groove; 2224. Card slot;

[0047] 23. Fastening assembly; 231. First fastening member; 232. Second fastening member. DETAILED DESCRIPTION

[0048] The exemplary embodiments disclosed in the present application will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the specific embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present application and to fully convey the scope disclosed in the present application to those skilled in the art.

[0049] In the following description, a large number of specific details are given to provide a more thorough understanding of the present application. However, it is obvious to those skilled in the art that the present application can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present application, some technical features known in the art are not described; that is, all features of the actual embodiments are not described here, and well-known functions and structures are not described in detail.

[0050] In the drawings, the sizes of layers, regions, elements and their relative sizes may be exaggerated for clarity. Like reference numerals denote like elements throughout.

[0051] It should be understood that when an element or layer is referred to as "on ...", "adjacent to ...", "connected to" or "coupled to" other elements or layers, it can be directly on, adjacent to, connected to or coupled to other elements or layers, or there can be intervening elements or layers. On the contrary, when an element is referred to as "directly on ...", "directly adjacent to ...", "directly connected to" or "directly coupled to" other elements or layers, there is no intervening element or layer. It should be understood that although the terms first, second, third, etc. can be used to describe various elements, components, regions, layers and / or parts, these elements, components, regions, layers and / or parts should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or part from another element, component, region, layer or part. Therefore, without departing from the teachings of the present application, the first element, component, region, layer or part discussed below can be represented as the second element, component, region, layer or part. And when the second element, component, region, layer or part is discussed, it does not indicate that the present application necessarily has the first element, component, region, layer or part.

[0052] Spatially relative terms such as "under", "beneath", "below", "under", "above", "above", etc., may be used here for convenience of description to describe the relationship between an element or feature shown in the figure and other elements or features. It should be understood that in addition to the orientation shown in the figure, the spatial relationship terms are intended to also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is turned over, then the elements or features described as "under other elements" or "under it" or "under it" will be oriented as "on" other elements or features. Therefore, the exemplary terms "under" and "under" may include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or other orientations) and the spatial descriptors used herein are interpreted accordingly.

[0053] The purpose of the terms used herein is only to describe specific embodiments and is not intended to be limiting of the present application. When used herein, the singular forms "one", "an" and "said / the" are also intended to include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "consisting of" and / or "comprising", when used in this specification, determine the presence of the features, integers, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or groups. When used herein, the term "and / or" includes any and all combinations of the relevant listed items.

[0054] In order to thoroughly understand the present application, detailed steps and detailed structures will be presented in the following description to illustrate the technical solution of the present application. The preferred embodiments of the present application are described in detail below, but in addition to these detailed descriptions, the present application may also have other implementation methods.

[0055] like Figure 1 and Figure 2 As shown, the embodiment of the present application provides a battery pack, including a box body 10 and a limiting mechanism 20, the box body 10 has a slide groove 121, and the slide groove 121 is along a first direction, that is, Figure 1 The first direction of the embodiment is the length direction of the box body 10, the limiting mechanism 20 is detachably connected to the slide groove 121, and the limiting mechanism 20 can be moved and / or rotated relative to the slide groove 121, and the limiting mechanism 20 is used to limit the position and posture of the wiring harness b.

[0056] The limiting mechanism 20 includes a limiting member 21, a clamping assembly 22 and a fastening assembly 23. The limiting member 21 is at least partially located in the slide groove 121. The clamping assembly 22 is detachably connected to the limiting member 21, and the wire harness b is inserted into the clamping assembly 22. The fastening assembly 23 is connected to the limiting member 21 and the clamping assembly 22 at the same time. The clamping assembly 22 limits the position and posture of the wire harness b relative to the box 10 under the action of the fastening assembly 23.

[0057] In the above battery pack, the limiting mechanism 20 includes a first state and a second state. The first state is a state in which the position and posture of the wire harness b are adjustable, and the second state is a state in which the relative position and posture of the wire harness b and the box 10 are fixed and cannot be adjusted. When in the first state, the wire harness b can move relative to the slide slot 121, and the wire harness b can rotate relative to the slide slot 121, and the position of the wire harness b in the clamping assembly 22 is adjustable. The position and posture of the clamping assembly 22 is adjusted according to the direction of the wire harness b and the reserved tightness, and then the position and posture of the wire harness b are adjusted. After the adjustment is completed, the limiting mechanism 20 is changed from the first state to the second state through the fastening assembly 23.

[0058] When the limiting mechanism 20 is in the second state, the clamping assembly 22 and the limiting member 21 are both in contact with the box 10, and the clamping assembly 22 is clamped on the wiring harness b. The limiting mechanism 20 of the embodiment of the present application can move and rotate the layout direction of the wiring harness b based on the assembly position of the surrounding parts, which can improve the rationality of the layout of the wiring harness b, thereby improving the stability of the line, greatly reducing the sagging or tension of the wiring harness b, and at the same time, it can also greatly reduce the subsequent vibration of the battery pack causing the sampling harness b to fluctuate and pull, resulting in a virtual connection between the sampling harness and the plug-in, and can also quickly find the fault point during the fault period and improve maintenance efficiency.

[0059] In an optional embodiment, the clamping assembly 22 includes a first clamping assembly 221 and a second clamping assembly 222. The first clamping assembly 221 is detachably connected to the stopper 21. The first clamping assembly 221 is detachably connected to the stopper 21. Figure 1 The minimum size of the positive projection in the direction of the arrow s2 shown in the figure is greater than the width of the slide groove 121. The second direction is perpendicular to the first direction. In this embodiment, the second direction is the height direction of the box body 10. The second clamping component 222 is arranged opposite to the first clamping component 221 and is detachably connected. The second clamping component 222 and the first clamping component 221 are used to place the wiring harness b. The first clamping component 221 and the second clamping component 222 are both in contact with the surface of the wiring harness b under the action of the fastening component 23.

[0060] The wire harness b is placed between the first clamping assembly 221 and the second clamping assembly 222. When the wire harness b needs to be placed between the first clamping assembly 221 and the second clamping assembly 222, the distance between the first clamping assembly 221 and the second clamping assembly 222 is increased to facilitate the placement of the wire harness b. After the placement of the wire harness b is completed, the first clamping assembly 221 and the second clamping assembly 222 contact the wire harness b and are clamped on the surface of the wire harness b under the action of the fastening assembly 23.

[0061] Figure 2 The first clamping assembly 221 and the second clamping assembly 222 are shown as two completely separable components. Alternatively, the first clamping assembly 221 and the second clamping assembly 222 are movably connected, for example, hinged, rotating, sliding, etc., which is not specifically limited in the present embodiment.

[0062] The minimum size of the orthographic projection of the first clamping assembly 221 in the second direction is greater than the width of the slide slot 121. In this way, the first clamping assembly 221 can rotate 360 ​​degrees relative to the slide slot 121 to adjust the position and posture of the wire harness b, and can also prevent the first clamping assembly 221 from falling out of the slide slot 121 when in the first state, thereby affecting the layout efficiency of the wire harness b.

[0063] In an alternative embodiment, if Figure 3As shown, the limiting member 21 has a first limiting portion 211 and a second limiting portion 212. One end of the first limiting portion 211 along the second direction is connected to the clamping assembly 22, and is located in the slide groove 121 and can move and / or rotate relative to the slide groove 121. The second limiting portion 212 is connected to the other end of the first limiting portion 211 along the second direction and is located at the outer bottom of the slide groove 121 away from the clamping assembly 22. The second limiting portion 212 can abut against the outer bottom of the slide groove 121 under the action of the fastening assembly 23.

[0064] It can be understood that along the second direction, Figure 1 In the direction of arrow s2 shown in the figure, the clamping assembly 22 and the second limiting portion 212 are respectively located on both sides of the slide groove 121, and the two ends of the first limiting portion 211 are respectively connected to the clamping assembly 22 and the second limiting portion 212, and the first limiting portion 211 is located in the slide groove 121. The fastening assembly 23 is simultaneously inserted into the clamping assembly 22, the first limiting portion 211 and the second limiting portion 212, so that the clamping assembly 22 and the second limiting portion 212 are respectively in contact with the upper and lower surfaces of the box body 10, which not only limits the position and posture of the second limiting portion 212 and the clamping assembly 22 relative to the box body 10, but also limits the position and posture of the wiring harness b relative to the box body 10.

[0065] The minimum dimension of the orthographic projection of the second limiting portion 212 in the second direction is larger than the orthographic projection of the slide slot 121 in the second direction, so that the second limiting portion 212 can abut against the outer bottom of the slide slot 121 under the action of the fastening assembly 23 at any angle.

[0066] In an alternative embodiment, if Figure 4 and Figure 5 As shown, the limiting member 21 further has a third limiting portion 213 , which cooperates with the first limiting portion 211 to be clamped in the slide groove 121 and is slidably connected to the slide groove 121 . The third limiting portion 213 is a slide plate extending outward from the outer wall of the first limiting portion 211 .

[0067] The slide plate can limit the first limiting portion 211 and the second limiting portion 212 from rotating relative to the box body 10. Thus, when the fastening assembly 23 is used for locking, there is no need to fix the limiting member 21 separately, and the locking can be performed directly, thereby improving the convenience of operation.

[0068] Furthermore, the slide groove 121 is a dovetail groove 1211 of a dovetail structure, and the shape of the slide plate is adapted to the dovetail groove 1211. The dovetail groove 1211 not only has high rigidity and can bear a large workload, but also can maintain precise positioning.

[0069] In an alternative embodiment, if Figure 5 , Figure 6 and Figure 7As shown, the first position-limiting portion 211 has a first mounting hole 2111 with a circular cross section, the first mounting hole 2111 extends along the second direction, and the inner wall of the first mounting hole 2111 is provided with a clamping protrusion 2112 distributed along its circumference. The first clamping assembly 221 is provided with a clamping groove 2224 with a circular cross section, and the clamping groove 2224 is rotatably engaged with the clamping protrusion 2112, so that the first clamping assembly 221 rotates relative to the first position-limiting portion 211.

[0070] It can be understood that the limit member 21 can only move along the first direction relative to the slide groove 121 but cannot rotate, and the first clamping assembly 221 can rotate relative to the slide groove 121. The rotation and movement of the wiring harness b are achieved through the cooperation between the limit member 21 and the first clamping assembly 221, so that the wiring harness b can be adjusted to a suitable position and posture.

[0071] In an alternative embodiment, if Figure 5 As shown, the fastening assembly 23 includes a first fastener 231 and a second fastener 232, the second fastener 232 is embedded in the stopper 21, one end of the first fastener 231 is movably connected to the second fastener 232, and the other end is movably connected to the clamping assembly 22. As an example, the first fastener 231 and the second fastener 232 are bolts and nuts respectively, the outer wall of the first fastener 231 is provided with an external thread, the clamping assembly 22 is provided with an internal thread matching the outer wall of the first fastener 231, and the second fastener 232 is provided with an internal thread matching the outer wall of the first fastener 231. Of course, the first fastener 231 and the second fastener 232 are not limited to this.

[0072] In an alternative embodiment, if Figure 7 As shown, the first clamping assembly 221 includes a first clamping member 2211 and a first elastic member 2212. The first clamping member 2211 is detachably connected to the limiting member 21. The first elastic member 2212 is connected to the first clamping member 2211. A plurality of first wire grooves 2213 are provided on the surface of the first elastic member 2212. The first wire grooves 2213 are used to place the wiring harness b.

[0073] The second clamping assembly 222 includes a second clamping member 2221 and a second elastic member 2222. The second clamping member 2221 is detachably connected to the first clamping member 2211. The second elastic member 2222 is connected to the second clamping member 2221. A plurality of second wire passing grooves 2223 are provided on the surface of the second elastic member 2222. The second wire passing grooves 2223 and the first wire passing grooves 2213 are spliced ​​together to form a wire passing hole for accommodating and matching the diameter of the wiring harness b.

[0074] The plurality of first wire passing grooves 2213 and the plurality of second wire passing grooves 2223 are arranged at intervals in one direction so as to isolate and fix each wire harness b, thereby greatly reducing the wear between adjacent wire harnesses b caused by vibration.

[0075] The material of the first clamping member 2211 and the second clamping member 2221 is a composite material with excellent strength, rigidity and heat resistance. As an example, the composite material is PA66 (polyamide 66) + 30% GF (glass fiber), but it is certainly not limited to this. In addition, the material of the first elastic member 2212 and the second elastic member 2222 is rubber, which has good elasticity, wear resistance and electrical insulation. The first elastic member 2212 and the second elastic member 2222 with good elasticity can increase the friction between them and the wire harness b, thereby ensuring the stability of clamping the wire harness b. Of course, the embodiment of the present application is not limited to this.

[0076] In an alternative embodiment, if Figure 1 and Figure 4 As shown, the box 10 includes a beam 11 and a bracket 12, the bracket 12 is connected to the side wall of the beam 11, a plurality of sampling plug-ins a are connected to the top of the beam 11, and the slide groove 121 is a slot provided on the surface of the bracket 12, and the slot extends along the first direction.

[0077] Figure 1 The bracket 12 is shown to be connected to the side wall of the beam 11, and the plane where the bracket 12 is located is perpendicular to the side wall of the beam 11, so as to improve the structural stability. In addition, the bracket 12 can also support the wire harness b, which can not only ensure the reserved tightness of the wire harness b, but also reduce the pressure of the sampling plug a.

[0078] The connection method between the bracket 12 and the beam 11 may include: the bracket 12 and the beam 11 are integrally formed to ensure the structural stability of the bracket 12; the bracket 12 is connected to the side wall of the beam 11 by welding, clamping or screw connection, and the specific connection method between the bracket 12 and the beam 11 is not limited in the embodiment of this application.

[0079] Figure 1 It is shown that the bracket 12 is detachably connected to the crossbeam 11 by screws, which improves the convenience of disassembly and assembly of the bracket 12 while ensuring the structural strength of the bracket 12.

[0080] In an alternative embodiment, if Figure 8 As shown, the box body 10 includes a crossbeam 11, a slide groove 121 is arranged on the side wall of the crossbeam 11, and a plurality of sampling plug-ins a are connected to the top of the crossbeam 11. The slide groove 121 is arranged on the side wall of the crossbeam 11 to greatly reduce the occupied space of the battery pack.

[0081] It should be understood that the above embodiments are exemplary and are not intended to include all possible implementations included in the claims. Various modifications and changes may be made on the basis of the above embodiments without departing from the scope of the present disclosure. Similarly, the various technical features of the above embodiments may be arbitrarily combined to form other embodiments of the present application that may not be explicitly described. Therefore, the above embodiments only express several implementations of the present application and do not limit the scope of protection of the patent of this application.

Claims

1. A battery pack, characterized in that: include: A box body, having a slide groove, wherein the slide groove extends along a first direction, and the first direction is the length direction of the box body; A limiting mechanism, which is detachably connected to the slide slot, and the limiting mechanism can move and / or rotate relative to the slide slot, and the limiting mechanism is used to limit the position and posture of the wiring harness; Wherein, the limiting mechanism comprises: a stopper, at least part of which is located in the slide groove; A clamping assembly, which is detachably connected to the stopper, and the wiring harness is inserted into the clamping assembly; A fastening assembly is connected to the limiting member and the clamping assembly at the same time, and the clamping assembly limits the position and posture of the wiring harness relative to the box under the action of the fastening assembly.

2. The battery pack according to claim 1, characterized in that: The clamping assembly comprises: A first clamping assembly, which is detachably connected to the stopper, and the orthographic projection of the first clamping assembly in a second direction is larger than the width of the slide groove, and the second direction is the height direction of the box body; A second clamping assembly, which is arranged opposite to the first clamping assembly and is detachably connected, and the wiring harness is placed between the second clamping assembly and the first clamping assembly; Wherein, the first clamping assembly and the second clamping assembly are both in contact with the surface of the wiring harness under the action of the fastening assembly.

3. The battery pack according to claim 2, characterized in that: The limiting member comprises a first limiting portion and a second limiting portion, wherein one end of the first limiting portion along the second direction is connected to the clamping assembly and is located in the slide slot and can move and / or rotate relative to the slide slot; The second limiting portion is connected to the other end of the first limiting portion along the second direction and is located at the outer bottom of the slide slot away from the clamping assembly, and can abut against the outer bottom of the slide slot under the action of the fastening assembly.

4. The battery pack according to claim 3, characterized in that: The limiting member further comprises a third limiting portion, which cooperates with the first limiting portion to be clamped in the slide slot and is slidably connected with the slide slot. The third limiting portion is a slide plate extending outward from the outer wall of the first limiting portion.

5. The battery pack according to claim 4, characterized in that: The first limiting portion has a first mounting hole with a circular cross section, the first mounting hole extends along the second direction, and the inner wall of the first mounting hole is provided with clamping protrusions distributed along the circumference thereof; The first clamping assembly is provided with a clamping groove with a circular cross-section, and the clamping groove is rotatably engaged with the clamping protrusion, so that the first clamping assembly rotates relative to the first limiting portion.

6. The battery pack according to claim 1, characterized in that: The fastening assembly includes a first fastener and a second fastener, the second fastener is embedded in the limiting member, one end of the first fastener is movably connected to the second fastener, and the other end of the first fastener is movably connected to the clamping assembly.

7. The battery pack according to claim 2, characterized in that: The first pressing assembly comprises: A first pressing member, which is detachably connected to the limiting member; A first elastic member, which is connected to the first pressing member, and a plurality of first wire-passing grooves are provided on the surface of the first elastic member, wherein the first wire-passing grooves are used to place the wire harness; The second pressing assembly comprises: A second pressing member, which is detachably connected to the first pressing member; A second elastic member is connected to the second clamping member, and a plurality of second wire-passing grooves are arranged on the surface of the second elastic member. The second wire-passing grooves are spliced ​​with the first wire-passing grooves to form a wire-passing hole for accommodating and matching the diameter of the wire harness.

8. The battery pack according to claim 1, characterized in that: The box body includes a crossbeam and a bracket, the bracket is connected to the side wall of the crossbeam, a plurality of sampling plug-ins are connected to the top of the crossbeam, the slide groove is a slot hole provided on the surface of the bracket, and the slot hole extends along the first direction.

9. The battery pack according to claim 1, characterized in that: The slide groove is a dovetail groove of a dovetail structure.

10. An electrical device, characterized in that: Comprising a battery pack as claimed in any one of claims 1 to 9.

Images