Battery sampling assembly and battery module

Abstract

The utility model relates to the technical field of batteries, in particular to a battery sampling assembly and a battery module. The battery sampling assembly comprises a substrate, a flexible circuit board and a wire harness plate, the flexible circuit board is attached to the outer surface of the substrate in a surrounding mode, the flexible circuit board is provided with a temperature acquisition terminal, the temperature acquisition terminal is used for detecting the temperature of a top cover of a single battery, and the substrate and the flexible circuit board are detachably connected to the wire harness plate. The wire harness plate is configured to press the temperature acquisition terminals against the top covers of the battery cells. When the battery pack is applied, the temperature acquisition terminal can be used for acquiring the temperature of the top cover of the single battery so as to realize basic functions. When the flexible circuit board breaks down, the flexible circuit board and the substrate can be detached from the wire harness board at any time for maintenance or replacement.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery sampling assembly and a battery module. Background Art

[0002] Throughout the development of new energy, various structures of battery modules have been frequently replaced. Currently, various components on the battery sampling assembly of the battery module are laser welded, and the flexible circuit board is generally connected and fixed by hot riveting. Therefore, if there is a problem with the parts on the battery sampling assembly, the entire battery sampling assembly needs to be replaced, which will result in high maintenance costs. This application aims to solve the problem of difficult maintenance caused by the inability to disassemble the flexible circuit board in the current battery module, and proposes a battery sampling assembly and a battery module. Utility Model Content

[0003] In view of this, the present application provides a battery sampling assembly and a battery module, which can solve the problem of difficulty in maintenance caused by the inability to disassemble the flexible circuit board in the current battery module.

[0004] In a first aspect, the present application provides a battery sampling assembly, comprising: a substrate; a flexible circuit board, which is circumferentially attached to the outer surface of the substrate, and the flexible circuit board is provided with a temperature acquisition terminal, and the temperature acquisition terminal is used to detect the temperature of the top cover of the battery cell; and a wiring harness board, the substrate and the flexible circuit board are detachably connected to the wiring harness board, and the wiring harness board is constructed to press the temperature acquisition terminal against the top cover of the battery cell.

[0005] In combination with the first aspect, in a possible implementation, the substrate includes a first side surface, a second side surface, a third side surface and a fourth side surface that are interconnected, the flexible circuit board is circumferentially attached to the first side surface, the second side surface and the third side surface, and the flexible circuit board is extended in a direction toward the fourth side surface to be provided with a voltage collection terminal, and the voltage collection terminal is used to collect the voltage of the battery cell.

[0006] In combination with the first aspect, in a possible implementation, the wiring harness board includes a receiving groove, which is used to accommodate and install the substrate and the flexible circuit board. A wire groove is also provided at the side wall of the receiving groove, and the wire groove is used to pass the voltage collection terminal; the wiring harness board also includes a bar groove, which is used to install a bar connecting the battery cell. The bar groove is adjacent to the receiving groove and is connected through the wire groove. The bar groove is provided with a second fixing member at a position corresponding to the wire groove. The second fixing member is provided with a wire hole for passing the voltage collection terminal. The voltage collection terminal passes through the wire groove and the wire hole in sequence and extends into the bar groove. The second fixing member is provided with a clamping portion protruding along a side away from the wire hole, and the clamping portion is used to hold the bar and press the voltage collection terminal.

[0007] In combination with the first aspect, in a possible implementation, a protrusion is provided on the fourth side surface of the substrate, the protrusion is provided with a temperature measuring component installation position, the temperature acquisition terminal includes a first temperature acquisition terminal, the temperature acquisition end of the first temperature acquisition terminal is arranged in the temperature measuring component installation position, and the wiring harness plate is provided with a limiting groove for accommodating the protrusion, and the limiting groove presses the protrusion to press the first temperature acquisition terminal onto the top cover of the battery cell.

[0008] In combination with the first aspect, in a possible implementation manner, the limiting groove and the accommodating groove are connected, and the bottom wall of the limiting groove abuts against the protruding portion.

[0009] In combination with the first aspect, in a possible implementation, the temperature acquisition terminal includes a second temperature acquisition terminal, the wiring harness plate is provided with a mounting groove extending in a thickness direction, the second temperature acquisition terminal is arranged in the mounting groove, the electrical connection end of the second temperature acquisition terminal is abutted and electrically connected to the flexible circuit board, and the substrate presses the temperature acquisition end of the second temperature acquisition terminal onto the top cover of the battery cell.

[0010] In combination with the first aspect, in a possible implementation, the electrical connection end of the second temperature collection terminal includes a spring, the spring extends toward the substrate, a temperature measurement circuit connection contact is provided on the side of the flexible circuit board facing away from the substrate, and the spring is electrically connected to the temperature measurement circuit connection contact.

[0011] In combination with the first aspect, in a possible implementation manner, a side wall of the installation groove is provided with a limiting structure, and a side portion of the second temperature collection terminal is provided with a matching structure matching the limiting structure.

[0012] In combination with the first aspect, in a possible implementation manner, the wiring harness board includes a limiting protrusion, and the limiting protrusion is used to fix the flexible circuit board and the substrate on the wiring harness board.

[0013] In a second aspect, the present application provides a battery module, comprising the aforementioned battery sampling assembly.

[0014] When the present application is used, the temperature acquisition terminal can be used to collect the temperature of the battery cell top cover to achieve basic functions. When the flexible circuit board and / or the temperature acquisition terminal and / or the voltage acquisition terminal fail, they can be removed from the wiring harness board together with the substrate at any time for repair or replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure is a schematic structural diagram of a flexible circuit board included in a battery sampling assembly provided in one embodiment of the present application.

[0016] Figure 2 Shown is a schematic structural diagram of a battery module provided in one embodiment of the present application.

[0017] Figure 3 The figure is a schematic diagram of the structure of a flexible circuit board included in a battery sampling assembly provided in another embodiment of the present application.

[0018] Figure 4 Shown is a partial structural schematic diagram of a battery sampling assembly provided in another embodiment of the present application.

[0019] Figure 5 Shown is a partial structural schematic diagram of a battery sampling assembly provided in another embodiment of the present application.

[0020] Figure 6 Shown is a partial structural schematic diagram of a battery sampling assembly provided in another embodiment of the present application.

[0021] Figure 7 Shown is a schematic structural diagram of a second temperature acquisition terminal provided in an embodiment of the present application.

[0022] Figure 8 Shown is a partial structural cross-sectional view of a battery sampling assembly provided in another embodiment of the present application. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0024] An exemplary battery sampling assembly is as follows:

[0025] Figure 1The figure is a schematic structural diagram of a flexible circuit board included in a battery sampling assembly provided in one embodiment of the present application.

[0026] Figure 2 The figure shows a schematic diagram of the structure of a battery module provided in one embodiment of the present application. The present application provides a battery sampling component. In one embodiment, as Figure 1 and 2 As shown, the battery sampling assembly includes a substrate 1, a flexible circuit board 2 and a wiring harness board 6. The flexible circuit board 2 is attached to the outer surface of the substrate 1 in a surrounding manner. The flexible circuit board 2 is provided with a temperature acquisition terminal, which is used to detect the temperature of the top cover of the battery cell in the battery module. The substrate 1 and the flexible circuit board 2 are detachably connected to the wiring harness board 6. The wiring harness board 6 is configured to press the temperature acquisition terminal against the top cover of the battery cell to improve the accuracy of temperature acquisition on the basis of the detachable setting of the temperature acquisition terminal.

[0027] When this embodiment is used, the temperature acquisition terminal can be used to collect the temperature of the top cover of the battery cell. Compared with collecting the temperature of the bar, detecting the top cover temperature can improve the accuracy of temperature acquisition. When the flexible circuit board 2 and / or the temperature acquisition terminal and / or the voltage acquisition terminal fail, they can be removed from the wiring harness board 6 together with the substrate 1 at any time for repair or replacement.

[0028] In one embodiment, if Figure 1 As shown, the substrate 1 includes a first side surface, a second side surface, a third side surface and a fourth side surface which are connected to each other, the first side surface and the third side surface are arranged opposite to each other, the second side surface and the fourth side surface are arranged opposite to each other, the second side surface and the fourth side surface are connected to the first side surface and the third side surface respectively, and the flexible circuit board 2 is wrapped around and attached to the first side surface, the second side surface and the third side surface, that is, the flexible circuit board 2 does not cover the fourth side surface, so that the flexible circuit board 2 is stably wrapped and connected to the substrate 1. Specifically, the second side surface can be arc-shaped to ensure the firmness of the wrapping of the flexible circuit board 2 and the substrate 1. The flexible circuit board 2 is provided with a voltage collection terminal 4 extending in the direction toward the fourth side surface, and the voltage collection terminal 4 is used to collect the voltage of the battery cell. The first side surface and the third side surface are parallel to the top cover of the battery cell, the fourth side surface is arranged at an angle to the top cover surface of the battery cell, and the fourth side surface is arranged corresponding to the pole of the battery cell, so as to collect the voltage of the battery cell through the extended voltage collection terminal 4.

[0029] Figure 4 Shown is a partial structural schematic diagram of a battery sampling assembly provided in another embodiment of the present application. Figure 6 FIG. 1 is a partial structural schematic diagram of a battery sampling assembly provided in another embodiment of the present application. Figure 2 , Figure 4 and Figure 6As shown, the wiring harness board 6 includes a receiving groove 601, which is used to receive and install the substrate 1 and the flexible circuit board 2. The flexible circuit board 2 wrapped with the substrate 1 is installed in the receiving groove 601, so that the flexible circuit board 2 is supported by the substrate 1, which is convenient for installation. A wire groove 603 is also provided at the side wall of the receiving groove 601, and the wire groove 603 is used to pass the voltage collection terminal 4, so that the voltage collection terminal 4 is effectively limited at a specified position on the wiring harness board 6. The position of the wire groove 603 corresponds to the voltage collection terminal 4, that is, the wire groove 603 corresponds to the fourth side surface, thereby reducing the length of the voltage collection terminal 4 and facilitating installation. The wiring harness plate 6 also includes a bar plate slot 604, which is used to install a bar plate 9 connected to a battery cell. The bar plate slot 604 is arranged adjacent to the receiving slot 601 and communicated through the wire slot 603. The bar plate slot 604 is provided with a second fixing member 10 at a position corresponding to the wire slot 603. The second fixing member 10 is provided with a wire hole 101 for passing the voltage collection terminal 4. The voltage collection terminal 4 passes through the wire slot 603 and the wire hole 101 in sequence and extends into the bar plate slot 604. The second fixing member 10 is provided with a clamping portion protruding along a side away from the wire hole 101. The clamping portion is used to hold the bar plate 9 and press the voltage collection terminal 4. The second fixing member 10 plays multiple roles at the same time: fixing the voltage collection terminal 4 and fixing the bar plate 9, so that the voltage collection terminal 4 can effectively collect voltage. In actual application, the voltage collection terminal 4 can be first connected to the pole of the battery cell through the wire slot 603, and then the bar 9 is installed in the bar slot 604. At this time, the bar presses against the voltage collection terminal 4, and then the bar 9 is clamped and pressed by the clamping part, and the voltage collection terminal 4 is pressed, thereby ensuring the connection stability of the voltage collection terminal 4. When disassembly is required, the voltage collection terminal 4 is removed, the flexible circuit board 2 is removed, and the voltage collection terminal 4 is taken out from the wire slot 603 to achieve replacement and maintenance.

[0030] Figure 5 FIG. 1 is a partial structural schematic diagram of a battery sampling assembly provided in another embodiment of the present application. Figure 1 As shown, the fourth side surface of the substrate 1 is provided with a protrusion 3, the protrusion 3 is provided with a temperature measuring component installation position 301, the temperature acquisition terminal includes a first temperature acquisition terminal 11, and the temperature acquisition end of the first temperature acquisition terminal 11 is arranged in the temperature measuring component installation position 301. Figure 4 and Figure 5The harness plate 6 is provided with a limiting groove 602 for accommodating the protrusion 3. The limiting groove 602 presses the protrusion 3 to press the first temperature acquisition terminal 11 onto the top cover of the battery cell. The temperature measuring component installation position 301 is a through installation hole. The first temperature acquisition terminal 11 is integrally arranged on the bottom surface of the protrusion 3 and fits with the protrusion 3. The temperature acquisition end of the first temperature acquisition terminal 11 is arranged in the installation hole. The height of the temperature acquisition end of the first temperature acquisition terminal 11 is lower than the height of the temperature measuring component installation position 301. The temperature measuring component installation position 301 protects the first temperature acquisition terminal 11, thereby preventing the limiting groove 602 from directly pressing the temperature acquisition end of the first temperature acquisition terminal 11 and causing damage. The mutual cooperation between the limiting groove 602 and the protrusion 3 realizes the detachable connection of the protrusion 3, thereby realizing the detachable connection of the first temperature collection terminal 11. The limiting groove 602 is used to abut the protrusion 3, so that the protrusion 3 can be stably fixed. The bottom surface of the protrusion 3 is the first temperature collection terminal 11. The temperature collection end of the first temperature collection terminal 11 is arranged on the first temperature collection terminal 11. Specifically, the temperature collection end of the first temperature collection terminal 11 can be an NTC. The limiting groove 602 abuts and cooperates to press the protrusion 3, thereby pressing the first temperature collection terminal 11, so that it fits with the top cover of the battery cell to ensure the accuracy of temperature detection. When it needs to be removed, the protrusion 3 can be pulled out of the limiting groove 602, which improves the convenience of installation and maintenance. In a specific embodiment, the limiting groove 602 is connected to the receiving groove 601, and the limiting groove 602 is provided on the bottom wall of the wiring harness plate 6, and the bottom wall faces the battery cell. The bottom wall of the limiting groove 602 abuts against the protrusion 3, so that the first temperature collection terminal 11 arranged below the protrusion 3 can directly detect the top cover temperature of the battery cell. During installation, the protrusion 3 is inserted into the limiting groove 602 from one side of the receiving groove 601. In order to further improve the connection stability, the protrusion 3 can be pressed between the bottom wall of the limiting groove 602 and the top cover of the battery cell by interference.

[0031] In some embodiments, there are multiple protrusions 3, which are arranged along the length direction of the substrate 1, and the wiring harness plate 6 is provided with a corresponding number of limiting grooves 602, and the multiple protrusions 3 are connected one by one in the multiple limiting grooves 602.

[0032] Figure 3 The figure is a schematic diagram of the structure of a flexible circuit board included in a battery sampling assembly provided in another embodiment of the present application. Figure 7 Shown is a schematic structural diagram of a second temperature acquisition terminal provided in an embodiment of the present application. Figure 8 FIG. 1 is a partial structural cross-sectional view of a battery sampling assembly provided by another embodiment of the present application. In another embodiment, as Figure 3 , Figure 6 , Figure 7 and Figure 8As shown, the temperature acquisition terminal includes a second temperature acquisition terminal 12, and the wiring harness plate 6 is provided with a mounting groove 605 that penetrates the thickness direction. The second temperature acquisition terminal 12 is arranged in the mounting groove 605, and the electrical connection end of the second temperature acquisition terminal 12 abuts against the electrically connected flexible circuit board 2, and the substrate 1 presses the temperature acquisition end of the second temperature acquisition terminal 12 on the top cover of the battery cell. The mounting groove 605 penetrates the bottom wall of the accommodating groove 601, so that the second temperature acquisition terminal 12 passes through the mounting groove 605 and fits with the top cover of the battery cell below the wiring harness plate 6, so that the second temperature acquisition terminal 2 can be directly installed while installing the substrate 1 and the flexible circuit board 2, thereby improving the convenience of installation and production efficiency. In this embodiment, the second temperature acquisition terminal 12 is pressed by the entire substrate 1, and the projection surfaces of the substrate 1, the flexible circuit board 2, and the second temperature acquisition terminal 12 overlap with each other, so that the second acquisition terminal 12 is pressed by the substrate 1, so as to collect the top cover temperature, and improve the stability and accuracy of the temperature acquisition of the second acquisition terminal 12.

[0033] like Figure 7 and Figure 8 As shown, the electrical connection end of the second temperature acquisition terminal 12 includes a spring 1201, and the spring 1201 extends toward the substrate 1. A temperature measurement circuit connection contact 201 is provided on the side of the flexible circuit board 2 facing away from the substrate 1, and the spring 1201 is electrically connected to the temperature measurement circuit connection contact 201. One end of the spring 1201 is detachably connected to the temperature measurement circuit connection contact 201 on the flexible circuit board 2 toward the substrate 1, and the other end is connected to the temperature detection end of the second temperature acquisition terminal 12, so that the detachable electrical connection is achieved through the spring 1201, and the pre-tightening force on the temperature acquisition end of the second temperature acquisition terminal 12 is increased, and the stability of the fit between the second temperature acquisition terminal 12 and the battery cell top cover is improved. The electrical connection end of the second temperature acquisition terminal 12 is detachably connected to the flexible circuit board 2, and the other end is detachably connected to the battery cell top cover, so that the second temperature acquisition terminal 12 can be directly connected and replaced without replacing the flexible circuit board 2, which improves the installation convenience and reduces the maintenance cost.

[0034] like Figure 6 As shown, a limiting structure 6051 is provided on the side wall of the mounting groove 605, and a matching structure 1202 matching the limiting structure 6051 is provided on the side of the second temperature acquisition terminal 12, so that the second temperature acquisition terminal 12 is limited and fixed by the limiting structure 6051 to prevent the second temperature acquisition terminal 12 from being offset or rotated, thereby further improving the stability of the second temperature acquisition terminal 12 and the top cover of the battery cell.

[0035] like Figure 4 and Figure 6As shown, the wiring harness plate 6 includes a limiting protrusion 7, and the limiting protrusion 7 is used to fix the flexible circuit board 2 and the substrate 1 on the wiring harness plate 6. The limiting protrusion 7 can be in the form of a buckle, so as to clamp and fix the substrate 1. The flexible circuit board 2 and the substrate 1 are pressed against the wiring harness plate 1 by the limiting protrusion 7, thereby indirectly pressing the second temperature acquisition terminal 12, ensuring the pressing force of the second temperature acquisition terminal 12, and ensuring that the contact area between the second temperature acquisition terminal 12 and the top cover of the battery cell is large enough to ensure the temperature detection accuracy of the second temperature acquisition terminal 12. The substrate 1 supports the flexible circuit board 2, and it is also convenient for the limiting protrusion 7 to press the flexible circuit board 2 by pressing the substrate 1, thereby solving the problem that the flexible circuit board 2 cannot be stably installed due to its flexible material.

[0036] It should be noted that the temperature acquisition terminal includes a first temperature acquisition terminal 11 and / or a second temperature acquisition terminal 12. The first temperature acquisition terminal 11 and the second temperature acquisition terminal 12 can be simultaneously provided on the flexible circuit board 2, or can be provided separately, and can be provided as required. At the same time, the number of the first temperature acquisition terminal 11 and the second temperature acquisition terminal 12 is not limited, and can be provided as required.

[0037] In one embodiment, if Figure 1 and Figure 3 As shown, the battery sampling assembly also includes a connector 5, which is arranged at the end of the substrate 1 in the length direction. The connector 5 includes a plurality of pins 501, each of which is electrically connected to the flexible circuit board 2, and the plurality of pins 501 are distributed on at least two sides of the substrate 1, thereby saving the space occupied by the plurality of pins 501. The wires of the voltage acquisition terminal and the temperature acquisition terminal are electrically connected to the connector 5 respectively, so as to output the detected information through the connector 5. The wires of the flexible circuit board 2 are arranged on the side facing away from the substrate 1, and the wires of the voltage collection terminal are arranged on the flexible circuit board 2 located above the substrate 1, and the wires of the temperature collection terminal are arranged on the flexible circuit board 2 located below the substrate 1, that is, the wires of the voltage collection terminal and the temperature collection terminal are arranged on both sides of the flexible circuit board 2 located on the substrate 1, so as to avoid wiring interference and shorten the wire length. The distance between the flexible circuit board 2 located below the substrate 1 and the temperature collection terminal is the shortest, and the distance between the flexible circuit board 2 located above the substrate 1 and the voltage collection terminal is the shortest, so that the wires can be made shortest. Through the battery sampling component of the present application, the position and wiring of the voltage collection terminal and the temperature collection terminal on the flexible circuit board 2 can be optimized, so that the overall wiring is simpler and more convenient, saving overall cost.

[0038] An exemplary battery module is as follows:

[0039] The present application also provides a battery module, including the aforementioned battery sampling assembly. When the flexible circuit board 2 and / or the voltage acquisition terminal and / or the temperature acquisition terminal fail, they can be removed from the wiring harness board 6 together with the substrate 1 at any time for repair or replacement, which reduces the repair difficulty of the entire battery module and improves the reliability of the battery module.

[0040] The basic principles of the present application are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present application. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not for limitation, and the above details do not limit the present application to being implemented by adopting the above specific details.

[0041] The block diagrams of the devices, apparatuses, equipment, and systems involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagram. As will be appreciated by those skilled in the art, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open words, referring to "including but not limited to", and can be used interchangeably with them. The words "or" and "and" used here refer to the words "and / or" and can be used interchangeably with them, unless the context clearly indicates otherwise. The words "such as" used here refer to the phrase "such as but not limited to", and can be used interchangeably with them.

[0042] It should also be noted that in the apparatus, device and method of the present application, each component or each step can be decomposed and / or recombined. Such decomposition and / or recombination should be regarded as equivalent solutions of the present application.

[0043] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to the widest scope consistent with the principles and novel features of this utility model.

[0044] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A battery sampling assembly, characterized in that: include: base(1); A flexible circuit board (2) is attached to the outer surface of the substrate (1) in a surrounding manner, and the flexible circuit board (2) is provided with a temperature acquisition terminal, and the temperature acquisition terminal is used to detect the temperature of the top cover of the battery cell; as well as A wiring harness plate (6), the substrate (1) together with the flexible circuit board (2) are detachably connected to the wiring harness plate (6), and the wiring harness plate (6) is configured to press the temperature acquisition terminal against the top cover of the battery cell.

2. The battery sampling assembly according to claim 1, characterized in that: The substrate (1) comprises a first side surface, a second side surface, a third side surface and a fourth side surface which are connected to each other; the flexible circuit board (2) is circumferentially attached to the first side surface, the second side surface and the third side surface; the flexible circuit board (2) is provided with a voltage collection terminal (4) extending in a direction toward the fourth side surface; the voltage collection terminal (4) is used to collect the voltage of the battery cell.

3. The battery sampling assembly according to claim 2, characterized in that: The wiring harness plate (6) comprises a receiving groove (601), the receiving groove (601) being used for receiving and installing the substrate (1) and the flexible circuit board (2), and a wire groove (603) being further provided on the side wall of the receiving groove (601), the wire groove (603) being used for passing the voltage collection terminal (4); The wiring harness plate (6) further comprises a tab slot (604), wherein the tab slot (604) is used to install a tab (9) connected to the battery cell, the tab slot (604) is arranged adjacent to the accommodating slot (601) and is connected via the wire slot (603), the tab slot (604) is provided with a second fixing member (10) at a position corresponding to the wire slot (603), the second fixing member (10) is provided with a wire hole (101) for passing the voltage collection terminal (4), the voltage collection terminal (4) passes through the wire slot (603) and the wire hole (101) in sequence and extends into the tab slot (604), the second fixing member (10) is provided with a clamping portion protruding along a side away from the wire hole (101), the clamping portion is used to abut against the tab (9) and press the voltage collection terminal (4).

4. The battery sampling assembly according to claim 3, characterized in that: The fourth side surface of the substrate (1) is provided with a protruding portion (3), the protruding portion (3) is provided with a temperature measuring component mounting position (301), the temperature acquisition terminal comprises a first temperature acquisition terminal (11), the temperature acquisition end of the first temperature acquisition terminal (11) is arranged in the temperature measuring component mounting position (301), the wiring harness plate (6) is provided with a limiting groove (602) for accommodating the protruding portion (3), the limiting groove (602) presses the protruding portion (3) to press the first temperature acquisition terminal (11) onto the top cover of the battery cell.

5. The battery sampling assembly according to claim 4, characterized in that: The limiting groove (602) is connected to the containing groove (601), and the bottom wall of the limiting groove (602) abuts against the protruding portion (3).

6. The battery sampling assembly according to claim 3, characterized in that: The temperature acquisition terminal comprises a second temperature acquisition terminal (12); the wiring harness plate (6) is provided with a mounting groove (605) penetrating in the thickness direction; the second temperature acquisition terminal (12) is arranged in the mounting groove (605); the electrical connection end of the second temperature acquisition terminal (12) is abutted against and electrically connected to the flexible circuit board (2); and the substrate (1) presses the temperature acquisition end of the second temperature acquisition terminal (12) against the top cover of the battery cell.

7. The battery sampling assembly according to claim 6, characterized in that: The electrical connection end of the second temperature acquisition terminal (12) comprises a spring (1201), the spring (1201) extending toward the substrate (1), a temperature measurement circuit connection contact (201) being provided on a side of the flexible circuit board (2) facing away from the substrate (1), the spring (1201) being electrically connected to the temperature measurement circuit connection contact (201).

8. The battery sampling assembly according to claim 6, characterized in that: The side wall of the installation groove (605) is provided with a limiting structure (6051), and the side of the second temperature collection terminal (12) is provided with a matching structure (1202) matching the limiting structure (6051).

9. The battery sampling assembly according to claim 4, characterized in that: The wiring harness plate (6) comprises a limiting protrusion (7), and the limiting protrusion (7) is used to fix the flexible circuit board (2) and the substrate (1) on the wiring harness plate (6).

10. A battery module, characterized in that: Includes a battery sampling assembly as described in any one of claims 1-9.

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