Data acquisition assembly and battery module

Abstract

The utility model relates to the technical field of battery manufacturing, in particular to a data acquisition assembly and a battery module, the data acquisition assembly comprises an acquisition sheet and an FPC board, the acquisition sheet is electrically connected with a battery cell tab and is used for acquiring various data information of the battery cell tab, the FPC board comprises a main body part, a plurality of lugs are arranged at the edge of the main body part, and the main body part is connected with the FPC board. The convex lug comprises a wavy bending part, the bending part is used for providing a buffering effect for the convex lug, and the collecting piece is connected with the convex lug. The problem that a traditional data acquisition assembly is not specially designed at the connection position of an acquisition sheet and an FPC board, so that the connection between the acquisition sheet and the FPC board is unstable when a battery cell expands is solved.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing technology, and in particular to a data acquisition component and a battery module. Background Technology

[0002] In a typical battery system, in order to monitor data such as the temperature and voltage of the cell tabs, it is usually necessary to set up a data acquisition component in the battery system to monitor various data of the cell tabs.

[0003] Data acquisition components typically consist of a data acquisition chip and an FPC board. The data acquisition chip is fixed to the FPC board by soldering. Traditional data acquisition components do not have a special design at the connection point between the data acquisition chip and the FPC board, which leads to unstable connection between the data acquisition chip and the FPC board when the battery cell expands. Utility Model Content

[0004] This application provides a data acquisition component and a battery module, aiming to solve the problem that traditional data acquisition components do not have a special design at the connection position between the acquisition chip and the FPC board, which leads to unstable connection between the acquisition chip and the FPC board when the battery cell expands.

[0005] To address the aforementioned technical problems, this application proposes a data acquisition component, which includes: an acquisition chip and an FPC board;

[0006] The data acquisition chip is electrically connected to the battery cell tab for acquiring various data information from the battery cell tab;

[0007] The FPC board includes a main body, and a plurality of lugs are provided at the edge of the main body. The acquisition plate is connected to the lugs, and the lugs include a wavy bend, which is used to provide a buffer for the lugs.

[0008] Furthermore, the FPC board is provided with a plurality of fixing holes, through which the FPC board is fixed in position.

[0009] Furthermore, the aforementioned fixing holes are arranged at equal intervals.

[0010] Furthermore, the FPC board also includes a first connecting portion, which is perpendicularly connected to one end of the main body.

[0011] Furthermore, the FPC board also includes a second connecting portion, which is perpendicularly connected to the end of the first connecting portion away from the main body.

[0012] Furthermore, the data acquisition component also includes a data interface, which is fixed to the second connection part and electrically connected to the FPC board.

[0013] Furthermore, the data interface is a low-voltage interface.

[0014] Furthermore, the data acquisition component also includes a protective housing whose shape matches the shape of the data interface, and the protective housing surrounds the data interface.

[0015] Furthermore, the data acquisition component also includes a fixing screw that passes through the protective shell and the second connecting portion to fix the protective shell to the second connecting portion, and the fixing screw is threaded to an external device to further fix the FPC board.

[0016] To achieve the above-mentioned utility model objectives, a second aspect of this utility model provides a battery module, the battery module including any of the above-mentioned data acquisition components.

[0017] The beneficial effects of this application are as follows: The data acquisition component provided in this application includes an acquisition chip and an FPC board. The acquisition chip is electrically connected to the battery cell tabs for acquiring various data information from the battery cell tabs. The FPC board includes a main body with several lugs at its edge. The acquisition chip is connected to the lugs, and each lug includes a wavy bend that provides a buffering effect. This buffering effect from the bends makes the connection between the acquisition chip and the lugs more stable, effectively preventing instability in the connection between the acquisition chip and the lugs due to battery cell expansion. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0019] Figure 1 This is a three-dimensional structural diagram of a data acquisition component according to an embodiment of the present invention.

[0020] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0021] Figure 3 This is a partial structural diagram of a data acquisition component according to an embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram of the structure of a battery module according to an embodiment of the present invention.

[0023] Explanation of reference numerals in the attached drawings: 100, data acquisition piece; 110, cell tab; 200, FPC board; 210, main body; 211, fixing hole; 220, lug; 221, bending part; 230, first connecting part; 240, second connecting part; 300, data interface; 310, protective shell; 400, fixing screw; 500, cover plate; 600, battery module. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0025] Those skilled in the art will understand that, unless explicitly stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in the specification of this application means the presence of features, integers, steps, operations, elements, modules, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, modules, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connections or wireless coupling. The term “and / or” as used herein includes all or any modules and all combinations of one or more associated listed items.

[0026] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0027] like Figure 1 and Figure 2 As shown, this application provides a data acquisition component, which includes a data acquisition piece 100 and an FPC board 200. The data acquisition piece 100 is electrically connected to the battery cell tab 110 for acquiring various data information of the battery cell tab 110. The FPC board 200 includes a main body 210, and a plurality of lugs 220 are provided at the edge of the main body 210. The data acquisition piece 100 is connected to the lugs 220. The lugs 220 include a wavy bending portion 221, which is used to provide a buffering effect for the lugs 220.

[0028] In one specific embodiment, the data acquisition piece 100 is a metal sheet with good conductivity, typically made of nickel or a nickel alloy. In this embodiment, the data acquisition piece 100 is electrically connected to the electrode tab of the battery cell via a welding process. As a component in direct contact with the battery cell electrode tab 110, the data acquisition piece 100 is used to acquire various data information from the battery cell electrode tab 110, such as voltage and temperature. The FPC board 200, or flexible printed circuit board, is characterized by its flexibility and thinness. The main body 210 is the main part of the FPC board 200, and is roughly rectangular in shape, providing a mounting base for the data acquisition piece 100. The lug 220 extends from the edge of the main body 210, and the data acquisition piece 100 is welded to the lug 220 to achieve an electrical connection between them. The middle portion of the data acquisition piece 100 is bent towards the battery cell electrode tab 110, making the data acquisition piece 100 generally Z-shaped. ， This allows the data acquisition piece 100 to connect better with the battery cell tab 110. The bending portion 221 is located on the side of the lug 220 away from the main body 210, and the bending portion 221 is away from the data acquisition piece 100. The wave-shaped bending portion 221 is a special structural design of the lug 220, and its shape is similar to a wave. This design allows the bending portion 221 to deform when the lug 220 is subjected to external force, which plays a buffering role and prevents the lug 220 from being damaged due to direct force. This ensures the stability of the connection between the data acquisition piece 100 and the FPC board 200, thereby ensuring the reliability of data acquisition.

[0029] In summary, the electrical connection between the acquisition piece 100 and the cell tab 110 enables accurate and efficient data acquisition from the cell tab 110, providing reliable data support for the battery management system. Secondly, the wavy bend 221 of the lug 220 on the FPC board 200 provides a buffering effect, enhancing the shock resistance of the data acquisition assembly. During battery use, the cell may expand. Since the lug 220 is adjacent to the cell, without a buffering structure, the connection between the acquisition piece 100 and the lug 220 may loosen or be damaged, leading to inaccurate or even interrupted data acquisition. The wavy bend 221 absorbs and disperses external forces, protecting the connection points and improving the stability and reliability of the entire data acquisition assembly.

[0030] like Figure 1 As shown, the FPC board 200 is provided with a number of fixing holes 211. The FPC board 200 is fixed in position through the fixing holes 211, and the number of fixing holes 211 are arranged at equal intervals.

[0031] In one specific embodiment, a plurality of fixing holes 211 are provided on the main body 210 of the FPC board 200. The fixing holes 211 penetrate the main body 210 and are arranged in a straight line. In this embodiment, the fixing holes 211 correspond one-to-one with the plugs of the tab support units on the aluminum fins in the battery module. After the plugs are passed through the fixing holes 211, the plugs are melted using a hot melt gun to fix the position of the FPC board 200. In addition, since the fixing holes 211 are evenly spaced, the force borne by each fixing point is relatively uniform when the FPC board 200 is fixed to the tab support unit through the fixing holes 211, avoiding the deformation or damage of the FPC board 200 due to excessive local stress.

[0032] In summary, the mounting holes 211 facilitate the installation of the FPC board 200, and the equally spaced mounting holes 211 make the force on the FPC board 200 more uniform, so as to ensure the flatness and stability of the FPC board 200, further improve the reliability of the connection between the acquisition chip 100 and the battery cell tab 110, thereby ensuring the accuracy of data acquisition.

[0033] like Figure 1 As shown, the FPC board 200 also includes a first connecting portion 230, which is perpendicularly connected to one end of the main body portion 210.

[0034] In one specific embodiment, the first connecting portion 230 is part of the FPC board 200. The first connecting portion 230 is rectangular and is perpendicularly connected to one end of the main body portion 210. The first connecting portion 230 is used to be placed on an external support component, such as an external support plate, to provide additional support and fixation for the FPC board 200. By placing the first connecting portion 230 on the support plate, the stability of the FPC board 200 can be further improved, and it also facilitates the cooperation and connection of the FPC board 200 with other components.

[0035] In summary, the placement of the first connecting part 230 in the data acquisition component provides better stability and ease of installation. Placing the first connecting part 230 on the support plate effectively distributes the weight and stress of the FPC board 200.

[0036] like Figure 1 As shown, the FPC board 200 also includes a second connecting portion 240, which is perpendicularly connected to the end of the first connecting portion 230 away from the main body portion 210.

[0037] In one specific embodiment, the second connecting portion 240 is part of the FPC board 200. The second connecting portion 240 is rectangular and is perpendicularly connected to the end of the first connecting portion 230 away from the main body portion 210, further expanding the structure and function of the FPC board 200.

[0038] The second connecting portion 240 is perpendicularly connected to the first connecting portion 230, giving both portions a strong structural integrity. This design allows the FPC board 200 to better connect and cooperate with other components, further improving the integration and functionality of the data acquisition assembly. For example, the second connecting portion 240 can be used to mount other electronic components.

[0039] In summary, the second connection portion 240 enriches the functionality and application scenarios of the FPC board 200. By vertically connecting to the first connection portion 230, the second connection portion 240 provides more mounting and connection positions for the data acquisition components, facilitating the integration of other electronic components such as sensors and amplifiers, thereby enhancing the functionality of the data acquisition components. Simultaneously, this vertical connection structure also makes the FPC board 200 more compact in terms of spatial layout, reducing the space occupied and improving the space utilization of the entire battery system.

[0040] like Figure 1 As shown, the data acquisition component also includes a data interface 300, which is fixed to the second connection part 240 and electrically connected to the FPC board 200. The data interface 300 is a low-voltage interface.

[0041] In one specific embodiment, the data interface 300 is an interface for data transmission between the data acquisition component and external devices. It can transmit the acquired data information from the cell tabs 110 to an external battery management system or other monitoring devices. In this embodiment, the data interface 300 is fixed on the side of the second connection portion 240 away from the first connection portion 230 and is electrically connected to the FPC board 200. This allows the data information from the cell tabs 110 acquired by the acquisition chip 100 to be transmitted to external devices through the FPC board 200 and the data interface 300, enabling data sharing and processing.

[0042] A low-voltage interface refers to an interface with a relatively low operating voltage, typically used for transmitting low-voltage signals. It features low power consumption and high security. Specifying data interface 300 as a low-voltage interface means that the data acquisition component uses lower voltage during data transmission, reducing energy consumption and improving safety. Low-voltage interfaces also offer better compatibility with voltage-sensitive external devices, expanding the application range of the data acquisition component.

[0043] In summary, the configuration of data interface 300 enables the data acquisition component to effectively interact with external devices.

[0044] like Figure 1 As shown, the data acquisition component also includes a protective housing 310, the shape of which matches the shape of the data interface 300, and the protective housing 310 surrounds the data interface 300.

[0045] In one specific embodiment, the protective shell 310 is an outer casing used to protect the data interface 300. It is typically made of materials such as plastic or rubber and possesses a certain degree of strength and flexibility. The shape of the protective shell 310 matches the data interface 300 and surrounds it. This provides physical protection for the data interface 300, preventing it from being affected by external impacts or other factors, thereby ensuring the normal operation of the data interface 300 and the stability of data transmission.

[0046] In summary, the protective housing 310 plays a crucial role in protecting the data interface 300. During actual use, the data interface 300 may be affected by various external factors, such as impacts, friction, and dust ingress, all of which can potentially damage the data interface 300 or cause data transmission failures. The protective housing 310 effectively blocks these external factors, extending the lifespan of the data interface 300 and improving the reliability of the data acquisition components.

[0047] like Figure 1 As shown, the data acquisition component also includes a fixing screw 400, which passes through the protective shell 310 and the second connecting part 240 to fix the protective shell 310 to the second connecting part 240. The fixing screw 400 is threaded to the external device to further fix the FPC board 200.

[0048] In one specific embodiment, the fixing screw 400 is a connector used to fix components. It is typically made of metal, has a threaded structure, and can be threadedly assembled with other components. In this embodiment, the fixing screw 400 penetrates the protective shell 310 and the second connecting portion 240, firmly fixing the protective shell 310 to the second connecting portion 240. Simultaneously, the fixing screw 400 is also threadedly assembled with the external reinforcing beam, thus further securing the FPC board 200 to the external structure and improving the overall stability of the data acquisition assembly.

[0049] In summary, the use of fixing screws 400 further enhances the stability and reliability of the data acquisition assembly. By fixing the protective shell 310 to the second connecting part 240, it can be ensured that the protective shell 310 can continuously and effectively protect the data interface 300. Simultaneously, the threaded assembly of the fixing screws 400 with the external reinforcing beam provides a further means of securing the FPC board 200, enabling the data acquisition assembly to maintain a stable position and connection state even when subjected to external forces such as vibration and impact. Figure 3 and Figure 4 As shown, in another embodiment, the second connecting portion 240 can also be connected to the cover plate 500. When the second connecting portion 240 is connected to the cover plate 500, the extension direction of the second connecting portion 240 changes. The extension direction of the second connecting portion 240 can be the same as the extension direction of the first connecting portion 230, or the second connecting portion 240 and the first connecting portion 230 are integrally formed.

[0050] like Figure 4 As shown, to achieve the objective of this utility model, in one embodiment, this application also provides a battery module 600, which includes the data acquisition component described in any of the above embodiments. In this embodiment, the specific structure of the battery module 600 is not limited; it is only required that the battery module includes the aforementioned data acquisition component.

[0051] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A data acquisition component, characterized in that, include: Acquisition chip and FPC board; The data acquisition chip is electrically connected to the battery cell tab for acquiring various data information from the battery cell tab; The FPC board includes a main body, and a plurality of lugs are provided at the edge of the main body. The acquisition piece is connected to the lugs, and the lugs include a bending portion, which is used to provide a buffering effect for the lugs.

2. The data acquisition assembly of claim 1, wherein, The FPC board is provided with a number of fixing holes, and the FPC board is fixed in position through the fixing holes.

3. The data acquisition assembly of claim 2, wherein, Several fixing holes are arranged at equal intervals.

4. The data acquisition assembly of claim 1, wherein, The FPC board further includes a first connecting portion, which is perpendicularly connected to one end of the main body.

5. The data acquisition assembly of claim 4, wherein, The FPC board further includes a second connecting portion, which is perpendicularly connected to the end of the first connecting portion away from the main body.

6. The data acquisition assembly of claim 5, wherein, The data acquisition component further includes a data interface, which is fixed to the second connection part and electrically connected to the FPC board.

7. The data acquisition assembly of claim 6, wherein, The data interface is a low-voltage interface.

8. The data acquisition assembly of claim 6, wherein, The data acquisition component also includes a protective housing whose shape matches the shape of the data interface and surrounds the data interface.

9. The data acquisition assembly of claim 8, wherein, The data acquisition component also includes a fixing screw that passes through the protective shell and the second connecting part to fix the protective shell to the second connecting part. The fixing screw is threaded to an external device to further fix the FPC board.

10. A battery module, characterized by Includes the data acquisition component as described in any one of claims 1 to 9.

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