Module sampling assembly and battery pack with same

Abstract

The utility model provides a module sampling assembly and a battery pack with the same, and the module sampling assembly comprises a flexible circuit board which is provided with a plurality of sampling cantilevers; a wire harness; and the sampling member is arranged corresponding to at least one of the plurality of sampling cantilevers, the sampling member is provided with a first connecting part and a second connecting part, the first connecting part is connected with the wire harness, the second connecting part is suitable for being connected with a battery cell, and in the first direction, the first connecting part is higher than the second connecting part. According to the module sampling assembly disclosed by the utility model, the first connecting part is higher than the second connecting part, so that the sampling piece can be conveniently connected with the battery cell, the assembling efficiency can be effectively improved, meanwhile, short circuit can be avoided after the first connecting part is in contact with an original sampling cantilever, and the maintenance difficulty can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of battery pack manufacturing technology, and in particular to a module sampling assembly and a battery pack having the same. Background Technology

[0002] In the existing battery pack, when the expansion force of the cells during cyclic operation is abnormal, the sampling cantilever of the flexible circuit board is subjected to reverse tension, which may cause the sampling cantilever to tear, resulting in the whole vehicle reporting a cell voltage sampling abnormality fault. When repairing the sampling cantilever, the internal circuitry of the flexible circuit board is usually damaged when the sampling cantilever is damaged. However, the flexible circuit board has a complex structure and is extremely difficult to repair, which increases the difficulty of battery pack repair. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a module sampling assembly that can reduce the difficulty of battery pack maintenance.

[0004] This utility model also proposes a battery pack having the above-mentioned module sampling assembly.

[0005] According to a first aspect of the present invention, a module sampling assembly includes: a flexible circuit board having a plurality of sampling cantilever arms; a sampling member having a corresponding arrangement with at least one of the plurality of sampling cantilever arms, the sampling member having a first connecting portion and a second connecting portion, the first connecting portion being connected to the wire harness, the second connecting portion being adapted to connect to a battery cell, wherein, in a first direction, the first connecting portion is higher than the second connecting portion.

[0006] According to the module sampling assembly of this utility model, the first connecting part is set higher than the second connecting part, which can facilitate the connection between the sampling component and the battery cell, thereby effectively improving the assembly efficiency. At the same time, it can avoid short circuits after the first connecting part comes into contact with the original sampling cantilever, thereby reducing the difficulty of maintenance.

[0007] According to some embodiments of the present invention, the sampling member includes: a first segment, the first segment extending horizontally, and the first connecting portion formed in the first segment; a second segment, the second segment extending vertically, one end of the second segment connected to the end of the first segment away from the first connecting portion; and a third segment, the third segment extending horizontally, the third segment connected to the end of the second segment away from the first segment, and the second connecting portion formed in the end of the third segment away from the second segment.

[0008] According to some embodiments of the present invention, the module sampling assembly includes: a limiting member, the limiting member having a through hole, the limiting member having an open opening communicating with the through hole, and the wire harness passing through the through hole.

[0009] According to some optional embodiments of the present invention, the limiting member includes: a body; a first plate, one end of the first plate being connected to the body, the other end of the first plate extending away from the body, and the perforation being defined between the first plate and the body.

[0010] According to some optional embodiments of the present invention, the end of the first plate away from the body can be moved relative to the body to adjust the size of the opening.

[0011] According to some embodiments of this utility model, the number of sampling elements is multiple, and the multiple sampling elements are arranged at intervals in the extension direction of the wire harness. The sampling elements are set in correspondence with the damaged sampling cantilever and the sampling cantilever that is easily damaged after simulation.

[0012] According to some embodiments of the present invention, the module sampling assembly includes: a fixing member, the fixing member being adapted to be fixed on the module steel strip, the fixing member being disposed at one end of the wire harness, the fixing member being provided with a through hole, and the wire harness being inserted through the through hole.

[0013] According to some optional embodiments of the present invention, the fixing member includes: a base adapted to be fixed on the module steel strip; a fixing block fixed on the base, the fixing block having a groove at one end away from the base, at least a portion of the wire harness being located in the groove; and a binding member, the fixing block having a fixing hole penetrating the fixing block, the binding member extending annularly through the fixing hole, and the binding member defining the through hole with an adjustable diameter.

[0014] According to some embodiments of the present invention, the module sampling assembly includes: a connector, the wiring harness being connected to the connector, and the wiring harness being adapted to be connected to a battery management system via the connector.

[0015] The battery pack according to a second aspect of the present invention includes a module sampling assembly according to a first aspect of the present invention.

[0016] According to the battery pack of this utility model, by setting the module sampling assembly of the first aspect embodiment above, the first connecting part is set higher than the second connecting part, which can facilitate the connection between the sampling component and the battery cell, thereby effectively improving the assembly efficiency. At the same time, it can avoid short circuits after the first connecting part comes into contact with the original sampling cantilever, thereby reducing the difficulty of maintenance.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a battery pack from one angle according to an embodiment of the present utility model;

[0019] Figure 2 yes Figure 1 A schematic diagram of the battery pack from another angle;

[0020] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0021] Figure 4 yes Figure 1 A schematic diagram of the battery pack from another angle;

[0022] Figure 5 yes Figure 4 A magnified view of a section at point B in the middle;

[0023] Figure 6 yes Figure 1 This is a schematic diagram of the battery pack from another angle.

[0024] Figure label:

[0025] 100. Module sampling assembly;

[0026] 10. Wiring harness;

[0027] 20. Sampling component; 21. First segment; 211. First connecting part; 22. Second segment; 23. Third segment; 231. Second connecting part;

[0028] 30. Limiting component; 31. Body; 32. First plate; 33. Glue-filling hole;

[0029] 40. Fastener; 41. Base; 42. Fixing block; 421. Groove; 43. Binding component; 431. Through hole; 44. Reinforcing rib;

[0030] 50. Connector; 51. Reinforcing plate;

[0031] 60. Flexible circuit board; 61. Sampling cantilever;

[0032] 200. Battery cell;

[0033] 300, busbar;

[0034] 400. Module steel strip;

[0035] 1000, Battery Pack. Detailed Implementation

[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0037] The following is a reference appendix. Figure 1-6 The module sampling assembly 100 according to an embodiment of the present utility model is described.

[0038] Reference Figure 1 , Figure 2 and Figure 3 According to an embodiment of the present invention, the module sampling assembly 100 includes: a flexible circuit board 60, a wire harness 10, and a sampling element 20. Specifically, the flexible circuit board 60 is provided with a plurality of sampling cantilever arms 61, that is, the flexible circuit board 60 may be provided with two, three, four or more sampling cantilever arms 61; the sampling element 20 is correspondingly arranged with at least one of the plurality of sampling cantilever arms 61, that is, the number of sampling elements is equal to the sum of the number of damaged sampling cantilever arms 61 and the number of sampling cantilever arms 61 that are easily damaged after simulation. The sampling element 20 has a first connecting part 211 and a second connecting part 231. The first connecting part 211 is connected to the wire harness 10, and the second connecting part 231 is adapted to connect to the battery cell 200, wherein, in the first direction (e.g., Figure 3 In the vertical direction shown, the first connecting part 211 is higher than the second connecting part 231.

[0039] For example, such as Figure 1 , Figure 2 and Figure 3 As shown, the first connecting part 211 is located above the second connecting part 231. The second connecting part 231 is connected to the busbar 300 of the battery cell 200, thereby ensuring that the sampling element 20 can collect data such as voltage and current of the battery cell 200. The wiring harness 10 is connected to the sampling element 20, so that the signal collected by the sampling element 20 can be transmitted to the battery management system via the wiring harness 10. Preferably, the sampling element 20 is a nickel sheet, which is easy to obtain and thus facilitates mass production.

[0040] The module sampling assembly 100 of this utility model has a first connecting part 211 positioned higher than the second connecting part 231. When the second connecting part 231 is connected to the busbar 300 of the battery cell 200, the first connecting part 211 can be clamped by a clamping tool, and then the second connecting part 231 is welded to the busbar 300 of the battery cell 200. This facilitates the connection between the sampling component 20 and the battery cell 200, saves assembly time, and effectively improves assembly efficiency. At the same time, compared with the existing technology where the sampling component 20 has a horizontally extending structure, the module sampling assembly 100 of this application can avoid interference between the first connecting part 211 and the sampling cantilever 61 of the original flexible circuit board 60, thereby effectively preventing short circuits after the sampling component 20 comes into contact with the sampling cantilever 61, thus reducing maintenance difficulty and improving maintenance efficiency.

[0041] Furthermore, when the sampling assembly of the battery pack 1000 is damaged, the module sampling assembly 100 of this application can be used to repair the battery pack 1000, thereby avoiding the need to directly replace the battery pack 1000, which would increase the usage cost of the battery pack 1000. At the same time, the sampling assembly can be strengthened based on the expansion simulation to simulate the sampling assembly at risk of fracture during its life cycle. In this way, even if the original sampling cantilever 61 is damaged, the sampling component 20 can replace the original sampling cantilever 61 to collect data such as voltage and current of the cell 200, thus eliminating the need to re-weld the damaged part of the original sampling cantilever 61, thereby reducing the number of repairs to the battery pack 1000 and lowering after-sales costs.

[0042] According to the module sampling assembly 100 of the present invention, the first connecting part 211 is set higher than the second connecting part 231, which can facilitate the connection between the sampling component 20 and the battery cell 200, thereby effectively improving the assembly efficiency. At the same time, it can avoid short circuits after the first connecting part 211 comes into contact with the original sampling cantilever 61, thereby reducing the difficulty of maintenance.

[0043] According to some embodiments of this utility model, refer to Figure 2 and Figure 3 The sampling component 20 includes: a first segment 21, a second segment 22, and a third segment 23. The first segment 21 extends horizontally, and a first connecting portion 211 is formed in the first segment 21; the second segment 22 extends vertically, and one end of the second segment 22 (e.g., ...) Figure 3 The upper end of the second segment 22 shown) and the end of the first segment 21 away from the first connecting part 211 (as shown) Figure 3 The first segment 21 (shown as the left end) is connected; the third segment 23 extends horizontally, and the third segment 23 is connected to the end of the second segment 22 away from the first segment 21 (as shown in the image). Figure 3 The second connecting portion 231 is formed at the end of the third segment 23 away from the second segment 22 (as shown in the diagram). Figure 3 (The left end of the third segment 23 shown).

[0044] In this way, through the cooperation of the first segment 21, the second segment 22 and the third segment 23, the first connecting part 211 on the sampling component 20 is higher than the second connecting part 231, so that the clamping tool can easily clamp the first connecting part 211, and the second connecting part 231 can easily connect to the busbar 300 of the battery cell 200, thereby facilitating the connection between the sampling component 20 and the battery cell 200.

[0045] For example, such as Figure 2 and Figure 3 As shown, the first segment 21 extends horizontally in the left-right direction, and the first connecting part 211 is located on the right side of the first segment 21. The second segment 22 extends vertically in the up-down direction, and the upper end of the second segment 22 is connected to the left end of the first segment 21. The third segment 23 extends horizontally in the left-right direction, and the rear end of the third segment 23 is connected to the lower end of the second segment 22. The second connecting part 231 is located on the left side of the third segment 23.

[0046] Preferably, the thickness of the sampling component 20 is 0.3 mm, the width of the sampling component 20 is 6-8 mm, and the sampling component 20 meets the requirement of peel strength greater than 40 N after welding. This can ensure the strength of the sampling component 20, effectively prevent the sampling component 20 from being damaged, and at the same time, ensure that the sampling component 20 can be properly welded to the busbar 300.

[0047] According to some embodiments of this utility model, refer to Figure 2 and Figure 3 The module sampling assembly 100 may include a limiting member 30, which has a through hole and an open opening communicating with the through hole, through which the wire harness 10 passes. Thus, the limiting member 30 can limit the wire harness 10 along its length, thereby preventing the wire harness 10 from moving within the battery pack 1000 and improving the orderly arrangement of the wire harness 10 within the battery pack 1000.

[0048] Preferably, there are multiple limiting members 30, and the multiple limiting members 30 are arranged at intervals along the length of the wire harness 10. This allows the limiting members 30 to limit multiple parts of the wire harness 10, thereby effectively preventing the wire harness 10 from moving.

[0049] According to some optional embodiments of the present invention, refer to Figure 2 and Figure 3 The limiting member 30 includes: a body 31 and a first plate 32, one end of the first plate 32 (e.g., Figure 3 The upper end of the first plate 32 shown is connected to the body 31, and the other end of the first plate 32 (as shown) Figure 3The lower end of the first plate 32 (as shown) extends away from the body 31, and a through hole is defined between the first plate 32 and the body 31. Thus, by defining the through hole through the first plate 32, no additional through hole processing is required, which facilitates the processing of the limiting member 30, reduces processing steps, improves processing efficiency, and enhances the functional integration of the first plate 32.

[0050] For example, such as Figure 2 and Figure 3 As shown, the upper end of the first plate 32 is connected to the body 31, the lower end of the first plate 32 extends downward, and a through hole is defined between the first plate 32 and the body 31 to pass through the limiting member 30 in the front-back direction.

[0051] According to some optional embodiments of the present invention, refer to Figure 2 and Figure 3 The end of the first plate 32 furthest from the main body 31 (e.g.) Figure 3 The lower end of the first plate 32 shown can move relative to the body 31 to adjust the size of the opening. Thus, the size of the opening is adjustable, and the limiting member 30 can limit the wire harness 10 of various diameters, thereby ensuring the versatility of the limiting member 30. Simultaneously, after the wire harness 10 is inserted into the through hole, the first plate 32 elastically resets, and the opening of the opening decreases, thereby preventing the wire harness 10 from detaching from the through hole and ensuring the stability of the limiting member 30 in fixing the wire harness 10.

[0052] For example, such as Figure 2 and Figure 3 As shown, the lower end of the first plate 32 can move relative to the body 31. When the first plate 32 moves to the right, the opening becomes larger, and when the first plate 32 moves to the left, the opening decreases.

[0053] Furthermore, such as Figure 2 and Figure 3 As shown, the limiting member 30 is provided with a potting hole 33 that runs through the limiting member 30 in the vertical direction. Two-component polyurethane structural adhesive is poured into the potting hole 33, so that the main trunk of the wire harness 10 can be stably fixed on the flexible circuit board 60.

[0054] According to some embodiments of this utility model, refer to Figure 2 and Figure 3The number of sampling elements 20 is multiple, meaning there can be two, three, four, or more. These sampling elements 20 are arranged at intervals along the extension direction of the wire harness 10. Each sampling element corresponds to a damaged sampling cantilever 61 and a sampling cantilever 61 that is prone to damage after simulation. Therefore, by setting multiple sampling elements 20, signals can be collected from multiple locations of the busbar 300, thereby strengthening the sampling cantilever 61 in multiple vulnerable locations. This prevents the voltage and current signals from being lost due to damage to the original sampling cantilever 61, and also avoids the need for repairs after damage to the sampling assembly, thus ensuring the service life of the battery pack 1000.

[0055] According to some optional embodiments of the present invention, refer to Figure 4 and Figure 5 The module sampling assembly 100 includes a fixing member 40, which is adapted to be fixed to the module steel strip 400. The fixing member 40 is located at one end of the wire harness 10 and has a through hole 431 through which the wire harness 10 passes. Thus, the wire harness 10 is fixed to the module steel strip 400 by the fixing member 40, thereby preventing the end of the wire harness 10 from moving or rotating within the battery pack 1000, and thus avoiding displacement caused by interference between the wire harness 10 and other structures. Simultaneously, the through hole 431 on the fixing member 40 facilitates the insertion of the wire harness 10 and the connection between the wire harness 10 and the fixing member 40.

[0056] According to some optional embodiments of the present invention, refer to Figure 4 and Figure 5 The fastener 40 includes: a base 41, a fixing block 42, and a binding member 43. The base 41 is adapted to be fixed to the module steel strip 400; the fixing block 42 is fixed to the base 41, with one end of the fixing block 42 facing away from the base 41 (e.g., ...). Figure 5 The upper end of the fixing block 42 shown is provided with a groove 421, and at least a portion of the wire harness 10 is located in the groove 421. That is, either a portion of the wire harness 10 is located in the groove 421, or the entire wire harness 10 is located in the groove 421. The fixing block 42 is provided with a fixing hole that passes through the fixing block 42. The binding member 43 extends into a ring shape through the fixing hole, and the binding member 43 defines a through hole 431 with an adjustable diameter.

[0057] In this way, the base 41 is set and fixed to the module steel strip 400, thereby fixing the fastener 40 to the module steel strip 400. This facilitates the fixing of the fastener 40 to the module steel strip 400. At the same time, the fixing block 42 is set. The groove 421 of the fixing block 42 can limit the wire harness 10 and pre-fix the wire harness 10, thereby facilitating the binding member 43 to fix the wire harness 10. In addition, the diameter of the hole 431 can be adjusted according to the actual size of the wire harness 10, thereby effectively reducing the gap between the wire harness 10 and the binding member 43, ensuring the strength of the binding member 43 in fixing the wire harness 10, and thus preventing the wire harness 10 from separating from the fastener 40.

[0058] For example, such as Figure 4 and Figure 5 As shown, the base 41 is plate-shaped and is fixed on the module steel strip 400. The fixing block 42 is located on the upper side of the base plate. The upper end of the fixing block 42 is provided with two grooves 421. One groove 421 passes through the fixing block 42 in the front-back direction, and the other groove 421 passes through the fixing block 42 in the left-right direction. The cross-section of the groove 421 is arc-shaped and adapted to the wire harness 10. The lower side of the fixing block 42 is provided with two fixing holes that pass through the fixing block 42 in the left-right direction and in the front-back direction. The binding member 43 extends into a ring after passing through the fixing hole. The binding member 43 defines an adjustable through hole 431.

[0059] Furthermore, such as Figure 4 and Figure 5 As shown, when the wire harness 10 extends in the left-right direction, the wire harness 10 is fixed in the groove 421 that passes through the fixing block 42 in the left-right direction, and the binding member 43 passes through the fixing hole that passes through the fixing block 42 in the front-back direction.

[0060] Furthermore, such as Figure 4 and Figure 5 As shown, a reinforcing rib 44 is provided between the base 41 and the fixing block 42, which can ensure the connection strength between the base 41 and the fixing block 42 and effectively prevent the fixing block 42 from separating from the base 41.

[0061] According to some embodiments of this utility model, refer to Figure 1 and Figure 6 The module sampling assembly 100 may include a connector 50, and a wiring harness 10 connected to the connector 50. The wiring harness 10 is adapted to be connected to the battery management system via the connector 50. Thus, the wiring harness 10 can be connected to the battery management system via the connector 50, thereby ensuring that the information collected by the sampling element 20 can be transmitted to the battery management system, and thus ensuring the normal functioning of the module sampling assembly 100.

[0062] For example, such as Figure 1 and Figure 6 As shown, connector 50 is fixed to module steel strip 400. One end of connector 50 is connected to wire harness 10, and the other end of connector 50 is connected to battery management system. Preferably, connector 50 is provided with reinforcing plate 51, which increases the connection area between connector 50 and module steel strip 400, effectively preventing connector 50 from separating from module steel strip 400. At the same time, the thickness of reinforcing plate 51 is 1.5mm-2mm, which ensures the strength of reinforcing plate 51 and effectively prevents damage to reinforcing plate 51. In addition, by providing reinforcing plate 51, reinforcing plate 51 can raise wire harness 10, thereby preventing the downward bending part of wire harness 10 from contacting module steel strip 400 and causing wear, thus protecting wire harness 10.

[0063] Furthermore, such as Figure 1 and Figure 6 As shown, connector 50 has a male end and a female end. The male end is connected to the main trunk of wire harness 10, and the female end is a board-type connector 50. The female end is connected to the battery management system. Connector 50 is riveted to the module steel strip 400, thereby ensuring the fixing strength between connector 50 and module steel strip 400.

[0064] According to a second aspect embodiment of the present invention, a battery pack 1000 is provided, with reference to... Figure 1 This includes the module sampling assembly 100 of the first aspect of this embodiment.

[0065] According to the battery pack 1000 of the present invention, by setting the module sampling assembly 100 of the first aspect embodiment above, the first connecting part 211 is set higher than the second connecting part 231, which can facilitate the connection between the sampling component 20 and the battery cell 200, thereby effectively improving the assembly efficiency. At the same time, it can avoid short circuit after the first connecting part 211 comes into contact with the original sampling cantilever 61, thereby reducing the difficulty of maintenance.

[0066] Furthermore, such as Figure 1 and Figure 2 As shown, the battery pack 1000 includes: battery cells 200 and busbars 300. The busbars 300 connect adjacent battery cells 200. A flexible circuit board 60 is connected to the busbars 300 and is used to acquire data such as voltage and current on the busbars 300. Preferably, foam is provided between the flexible circuit board 60 and the battery cells 200, and the foam is coated with adhesive on both sides, thereby ensuring the connection strength between the flexible circuit board 60 and the battery cells 200 and effectively preventing the flexible circuit board 60 from separating from the battery cells 200.

[0067] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0068] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0069] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0070] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0071] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A module sampling assembly, characterized in that, include: A flexible circuit board, wherein the flexible circuit board is provided with multiple sampling cantilever arms; wire harness; A sampling element is provided corresponding to at least one of a plurality of sampling cantilever arms. The sampling element has a first connecting portion and a second connecting portion. The first connecting portion is connected to the wire harness, and the second connecting portion is adapted to connect to the battery cell. In a first direction, the first connecting portion is higher than the second connecting portion.

2. The module sampling assembly according to claim 1, characterized in that, The sampling components include: The first segment extends horizontally, and the first connecting portion is formed in the first segment; The second segment extends vertically, and one end of the second segment is connected to the end of the first segment that is away from the first connecting part. The third segment extends horizontally and is connected to the end of the second segment away from the first segment. The second connecting portion is formed at the end of the third segment away from the second segment.

3. The module sampling assembly according to claim 1, characterized in that, Includes: a limiting member, the limiting member having a through hole, the limiting member having an open opening communicating with the through hole, and the wire harness passing through the through hole.

4. The module sampling assembly according to claim 3, characterized in that, The limiting component includes: ontology; A first plate, one end of which is connected to the body, and the other end of which extends away from the body, defining the perforation between the first plate and the body.

5. The module sampling assembly according to claim 4, characterized in that, The end of the first plate furthest from the body can move relative to the body to adjust the size of the opening.

6. The module sampling assembly according to claim 1, characterized in that, The number of sampling components is multiple, and the multiple sampling components are arranged at intervals in the extension direction of the wire harness. The sampling components are set in correspondence with the damaged sampling cantilever and the sampling cantilever that is easily damaged after simulation.

7. The module sampling assembly according to claim 1, characterized in that, include: A fastener is provided, which is adapted to be fixed on the module steel strip. The fastener is located at one end of the wire harness and has a through hole through which the wire harness passes.

8. The module sampling assembly according to claim 7, characterized in that, The fastener includes: A base, the base being adapted to be fixed to the module steel strip; A fixing block is fixed to the base, and a groove is provided at one end of the fixing block away from the base, wherein at least a portion of the wire harness is located in the groove; The binding member has a fixing hole through the fixing block, and the binding member extends into a ring shape through the fixing hole, defining the through hole with an adjustable diameter.

9. The module sampling assembly according to claim 1, characterized in that, include: A connector, to which the wiring harness is connected, the wiring harness being adapted to be connected to a battery management system via the connector.

10. A battery pack, characterized in that, The module sampling assembly includes any one of claims 1-9.

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