Electrical connection assembly and battery pack signal acquisition device

Abstract

The application discloses an electric connection assembly and a battery pack signal acquisition device. The battery pack signal acquisition device comprises a signal transmission bus and the electric connection assembly. The electric connection assembly is used for electrically connecting a battery cell to the signal transmission bus to acquire an electric parameter of the battery cell. The electric connection assembly and the signal transmission bus are respectively formed, and are connected and electrically conducted with each other. In the application, the electric connection assembly can be replaced alone without replacing the signal transmission bus, use convenience is improved, and a later maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to an electrical connection assembly and a battery pack signal acquisition device comprising the same. BACKGROUND

[0002] A battery pack is the most important component on an electric vehicle. In the prior art, in order to ensure the service life of the battery pack, the temperature and voltage of the battery pack must be acquired and controlled to ensure that the temperature and voltage of the battery pack remain stable.

[0003] In the prior art, the signal acquisition device for acquiring the temperature and voltage of the battery pack usually comprises a flexible printed circuit board (FPC) and a fuse and a temperature sensor welded on the flexible printed circuit board. The disadvantage of the existing signal acquisition device is that the fuse and the temperature sensor and the like cannot be replaced individually, and when being repaired, the entire flexible printed circuit board must be replaced, which is very high in repair cost and very inconvenient to use.

[0004] In addition, in the prior art, the fuse and the temperature sensor and the like are welded on the flexible printed circuit board in a reflow soldering, soldering, ultrasonic welding or laser welding manner, and therefore, a high-temperature-resistant protective film must be covered on the flexible printed circuit board to prevent the high temperature generated during welding from adversely affecting the flexible printed circuit board, which greatly increases the manufacturing cost. SUMMARY

[0005] The present application aims to solve at least one of the above problems and defects in the prior art.

[0006] According to one aspect of the present application, there is provided a battery pack signal acquisition device comprising: a signal transmission bus; and an electrical connection assembly for electrically connecting a battery cell to the signal transmission bus to acquire an electrical parameter of the battery cell, the electrical connection assembly and the signal transmission bus being respectively formed and connected to each other and electrically conductive.

[0007] According to one example embodiment of the present application, the battery pack signal acquisition device further comprises an electrical adapter; the electrical adapter is electrically connected to the electrical connection assembly and the signal transmission bus, respectively.

[0008] According to another example embodiment of the present application, the electrical adapter comprises a pair of mating connection terminals electrically connected to the electrical connection assembly and the signal transmission bus, respectively, so that the electrical connection assembly and the signal transmission bus are detachably connected.

[0009] According to another exemplary embodiment of the present application, the electrical adapter comprises a first connection terminal, which is crimped onto the signal transmission bus to electrically connect the electrical connection assembly to the signal transmission bus.

[0010] According to another exemplary embodiment of the present application, the first connection terminal is crimped onto the signal transmission bus in a piercing crimping manner.

[0011] According to another exemplary embodiment of the present application, the first connection terminal is crimped onto the electrical connection assembly in a piercing crimping manner to achieve electrical connection between the first connection terminal and the electrical connection assembly.

[0012] According to another exemplary embodiment of the present application, the first connection terminal comprises a body extending in a straight line, first side wings formed on both sides of one end of the body, and second side wings formed on both sides of the other end of the body; the first side wings and the second side wings are symmetrically arranged at both ends of the body, so that the first side wings and the second side wings can be interchangeable without distinction in use.

[0013] According to another exemplary embodiment of the present application, the first connection terminal comprises a first body and a second body, one end of the second body being perpendicularly connected to a middle part of the first body, so that the first connection terminal is in a T shape.

[0014] According to another exemplary embodiment of the present application, the first connection terminal comprises a first body and a second body, one end of the second body being perpendicularly connected to one end of the first body, so that the first connection terminal is in an L shape.

[0015] According to another exemplary embodiment of the present application, the electrical connection assembly further comprises an electrical connector, one end of the electrical connector being electrically connected to the signal transmission bus, and the other end being electrically connected to the battery cell.

[0016] According to another exemplary embodiment of the present application, the electrical connector is a flexible electrical connector, the electrical connector comprising a flexible film carrier and a conductive trace integrated on the flexible film carrier.

[0017] According to another exemplary embodiment of the present application, the electrical connector further comprises a fuse, the fuse being integrated on the flexible film carrier and electrically connected to the conductive trace.

[0018] According to another exemplary embodiment of the present application, the fuse comprises a surface mountable fuse adapted to be mounted on the flexible film carrier in a surface mount manner and / or a conductive trace type fuse adapted to be formed on the flexible film carrier in a conductive trace manner.

[0019] According to another exemplary embodiment of the present application, the electrical connection is a flexible flat cable, a flexible printed circuit board or a flexible wire.

[0020] According to another exemplary embodiment of the present application, the battery pack signal acquisition device comprises a plurality of electrical connections arranged at the ends and sides of the signal transmission bus, the electrical connections arranged at the sides of the signal transmission bus are bent into a non-straight shape, and the electrical connections arranged at the ends of the signal transmission bus are not bent.

[0021] According to another exemplary embodiment of the present application, the electrical connection assembly further comprises a second connection terminal, one end of the second connection terminal being connected to the electrical connection, and the other end being electrically connected to the battery cell.

[0022] According to another exemplary embodiment of the present application, the electrical connection assembly further comprises a welding terminal for being welded to the battery cell, and the other end of the second connection terminal is connected to the welding terminal.

[0023] According to another exemplary embodiment of the present application, the electrical connection assembly further comprises a temperature sensor assembly for detecting the temperature of the battery cell, and the temperature sensor assembly is electrically connected to the second connection terminal.

[0024] According to another exemplary embodiment of the present application, the battery pack signal acquisition device further comprises a bracket, and the signal transmission bus and the electrical connection assembly are respectively mounted on the bracket.

[0025] According to another aspect of the present application, an electrical connection assembly is provided for electrically connecting a battery cell to a signal transmission bus, the electrical connection assembly comprising an electrical connection and a first connection terminal, one end of the first connection terminal being connected to the electrical connection and being in electrical conduction, and the other end of the first connection terminal being arranged to be connected to the signal transmission bus, so as to electrically connect the electrical connection assembly to the signal transmission bus.

[0026] According to an exemplary embodiment of the present application, the electrical connection assembly further comprises a second connection terminal, one end of the second connection terminal being connected to the electrical connection, and the other end of the second connection terminal being electrically connected to the battery cell, so as to acquire the electrical signal of the battery cell.

[0027] In the foregoing exemplary embodiments of the present application, the electrical connection assembly is electrically connected to the signal transmission bus in a terminal crimping manner, so that the electrical connection assembly can be replaced individually without replacing the signal transmission bus, thereby improving the convenience of use and reducing the cost of later maintenance.

[0028] In addition, in the aforementioned some exemplary embodiments of the present application, the electrical connection assembly is electrically connected to the signal transmission bus in a terminal crimping manner instead of using soldering, ultrasonic welding or laser welding, thus the signal transmission bus does not need to be high-temperature resistant, which reduces the production cost.

[0029] Other objects and advantages of the present application will become apparent and help to understand the present application from the following description of the application with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 A schematic diagram showing a battery pack signal acquisition device according to an exemplary embodiment of the present application;

[0031] Figure 2 A schematic diagram showing Figure 1 A schematic diagram showing an electrical connection assembly in the battery pack signal acquisition device shown;

[0032] Figure 3 A schematic diagram showing Figure 2 An exploded schematic diagram showing the electrical connection assembly shown;

[0033] Figure 4 A schematic diagram showing an electrical connection assembly of a battery pack signal acquisition device according to another exemplary embodiment of the present application;

[0034] Figure 5 A schematic diagram showing Figure 4 A perspective schematic diagram showing a first connecting terminal of the electrical connection assembly shown;

[0035] Figure 6 A perspective schematic diagram showing a first connecting terminal according to another exemplary embodiment of the present application;

[0036] Figure 7 A schematic diagram showing an electrical connection assembly according to another exemplary embodiment of the present application. DETAILED DESCRIPTION

[0037] The technical solutions of the present application will be further described in detail below by way of examples in conjunction with the accompanying drawings. In the description, identical or similar reference numerals indicate identical or similar components. The following description of the embodiments of the present application with reference to the accompanying drawings is intended to explain the general inventive concept of the present application, and should not be understood as a limitation of the present application.

[0038] In addition, in the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. It will be apparent, however, to one of ordinary skill in the art that one or more embodiments can be practiced without these specific details. In other instances, well-known structures and devices are not described in detail in order to simplify the drawings.

[0039] According to an overall technical concept of the present invention, a battery pack signal acquisition device is provided, comprising: a signal transmission bus; and an electrical connection component for electrically connecting a battery cell to the signal transmission bus to acquire the electrical parameters of the battery cell, wherein the electrical connection component and the signal transmission bus are respectively formed, interconnected and electrically conductive.

[0040] According to another general technical concept of the present invention, an electrical connection assembly is also provided for electrically connecting a battery cell to a signal transmission bus. The electrical connection assembly includes an electrical connector and a first connection terminal. One end of the first connection terminal is interconnected with the electrical connector and electrically conductive. The other end of the first connection terminal is configured to be connected to the signal transmission bus to electrically connect the electrical connection assembly to the signal transmission bus.

[0041] Figure 1 A schematic diagram of a battery pack signal acquisition device according to an exemplary embodiment of the present invention is shown.

[0042] like Figure 1 As shown in the illustrated embodiment, the battery pack signal acquisition device mainly includes a signal transmission bus 1 and multiple electrical connection components 3. The multiple electrical connection components 3 are used to electrically connect multiple battery busbars 2 to the signal transmission bus 1 respectively, so as to acquire the electrical parameters of the battery cells, such as voltage, pressure, resistance, current or temperature signals.

[0043] like Figure 1 As shown in the illustrated embodiment, each electrical connection component 3 includes a first connection terminal 31. The first connection terminal 31 is crimped onto the signal transmission bus 1 to electrically connect the electrical connection component 3 to the signal transmission bus 1. Therefore, in this invention, the electrical connection component 3 can be replaced independently without replacing the signal transmission bus 1, improving ease of use and reducing subsequent maintenance costs. Furthermore, in this invention, the electrical connection component 3 is electrically connected to the signal transmission bus 1 by terminal crimping, rather than by soldering, ultrasonic welding, or laser welding. Therefore, the signal transmission bus 1 does not need to withstand high temperatures, which reduces production costs.

[0044] Please note that the present invention is not limited to the illustrated embodiment. For example, the electrical connection component 3 can also be electrically connected to the signal transmission bus 1 by other suitable types of electrical adapters such as rivets or special connectors.

[0045] Although not shown, in another exemplary embodiment of the present application, the electrical connector 31 comprises a pair of mating connection terminals. The pair of mating connection terminals are respectively electrically connected with the electrical connection assembly 3 and the signal transmission bus 1, so that the electrical connection assembly 3 and the signal transmission bus 1 are detachably connected. In this way, the electrical connection assembly 3 can be more easily detached from the signal transmission bus 1, so that replacement of the electrical connection assembly 3 is more convenient.

[0046] Figure 2 The display Figure 1 A schematic view of one of the electrical connection assemblies 3 in the battery pack signal acquisition device shown; Figure 3 The display Figure 2 An exploded schematic view of the electrical connection assembly 3 shown.

[0047] As Figures 1 to 3 shown, in the illustrated embodiment, the signal transmission bus 1 can be a flexible flat cable (FFC), and the first connection terminal 31 is adapted to be crimped to the signal transmission bus 1 in a piercing crimping manner. However, the present application is not limited thereto, and the signal transmission bus 1 can be a flexible printed circuit (FPC).

[0048] As Figures 1 to 3 shown, in the illustrated embodiment, the electrical connection assembly 3 further comprises an electrical connector 30 located between the signal transmission bus 1 and the battery busbar 2. One end of the electrical connector 30 is electrically connected with the first connection terminal 31, and the other end is electrically connected with the battery busbar 2.

[0049] As Figures 1 to 3 shown, in the illustrated embodiment, the electrical connector 30 is a flexible electrical connector that can be bent. In one exemplary embodiment of the present application, the electrical connector 30 comprises a flexible film carrier 30d and conductive traces 30a integrated on the flexible film carrier 30d. The conductive traces 30a can be formed on the flexible film carrier 30d by any suitable process, for example, printing.

[0050] As Figures 1 to 3 shown, in the illustrated embodiment, the electrical connector 30 further comprises fuses 30b, 30c. The fuses 30b, 30c are integrated on the flexible film carrier 30d and electrically connected with the conductive traces 30a. As Figure 2 shown, in one exemplary embodiment of the present application, the fuses 30b, 30c can comprise surface mount fuses 30b adapted to be mounted on the flexible film carrier 30d in a surface mount manner and / or conductive trace fuses 30c adapted to be formed on the flexible film carrier 30d in a conductive trace manner. The use of conductive trace fuses 30c can greatly reduce manufacturing costs.

[0051] like Figures 1 to 3 As shown in the illustrated embodiment, the first connecting terminal 31 is crimped onto the electrical connector 30 by means of piercing crimping to achieve an electrical connection between the first connecting terminal 31 and the electrical connector 30.

[0052] Please note that the electrical connector 30 of the present invention is not limited to... Figures 1 to 3 In the embodiments shown, the electrical connector 30 can also be a flexible flat cable, a flexible printed circuit board, or a flexible wire.

[0053] like Figures 1 to 3 As shown in the illustrated embodiment, the first connection terminal 31 includes a body 310 extending in a straight line. Two toothed first side wings 31a are formed on both sides of one end of the body 310 of the first connection terminal 31, and these toothed first side wings 31a are adapted to be crimped onto the signal transmission bus 1 by a piercing crimping method. Two toothed second side wings 31b are formed on both sides of the other end of the body 310 of the first connection terminal 31, and these toothed second side wings 31b are adapted to be crimped onto the electrical connector 30 by a piercing crimping method.

[0054] like Figures 1 to 3 As shown in the illustrated embodiment, the first side wings 31a on both sides of one end of the body 310 of the first connection terminal 31 are offset by a predetermined distance in the extending direction of the body 310, so that the first side wings 31a on both sides are offset from each other after being pressed onto the signal transmission bus 1, which can improve the electrical connection performance between the first connection terminal 31 and the signal transmission bus 1.

[0055] like Figures 1 to 3 As shown in the illustrated embodiment, the second side wings 31b on both sides of the other end of the body 310 of the first connecting terminal 31 are offset by a predetermined distance in the extending direction of the body 310, so that the second side wings 31b on both sides are offset from each other after being pressed onto the electrical connector 30, which can improve the electrical connection performance between the first connecting terminal 31 and the electrical connector 30.

[0056] like Figures 1 to 3 As shown in the illustrated embodiment, the first side wing 31a and the second side wing 31b of the first connection terminal 31 are symmetrically arranged at both ends of the body 310, so that the first side wing 31a and the second side wing 31b can be interchanged in use without needing to distinguish them. That is, in use, either the first side wing 31a or the second side wing 31b can be pressed onto the signal transmission bus 1 without needing to distinguish or identify the first side wing 31a and the second side wing 31b. This symmetrical structure is very convenient to use.

[0057] like Figures 1 to 3As shown in the illustrated embodiment, due to the layout requirements of the signal transmission bus 1 and the battery bus 2, the electrical connector 30 arranged on the side of the signal transmission bus 1 needs to be bent by 90 degrees, while the electrical connector 30 arranged at the end of the signal transmission bus 1 does not need to be bent.

[0058] like Figures 1 to 3 As shown in the illustrated embodiment, the electrical connection assembly 3 further includes a second connection terminal 32 and a solder terminal 33. One end of the second connection terminal 32 is crimped onto the electrical connector 30, and the other end is crimped onto the connection end of the solder terminal 33, which is soldered to the battery busbar 2. This achieves an electrical connection between the electrical connector 30 and the battery busbar 2.

[0059] like Figures 1 to 3 As shown in the illustrated embodiment, two toothed wings 32a are formed on both sides of one end of the second connecting terminal 32. These toothed wings 32a are crimped onto the electrical connector 30 by a piercing crimping method. The toothed wings 32a on both sides of the second connecting terminal 32 are staggered by a predetermined distance in the extending direction of the second connecting terminal 32, so that the toothed wings 32a on both sides are staggered after being crimped onto the electrical connector 30. This improves the electrical connection performance between the second connecting terminal 32 and the electrical connector 30.

[0060] like Figures 1 to 3 As shown in the illustrated embodiment, a pair of sheet-like side wings 32b are formed at the other end of the second connecting terminal 32. The pair of sheet-like side wings 32b are symmetrically arranged on both sides of the other end of the second connecting terminal 32 and are pressed onto the connecting end of the welding terminal 33.

[0061] Figure 4 A schematic diagram showing the electrical connection assembly 3 of a battery pack signal acquisition device according to another exemplary embodiment of the present invention; Figure 5 show Figure 4 A perspective view of the first connection terminal 31 of the electrical connection assembly 3 shown.

[0062] like Figures 4-5 The illustrated embodiments and Figures 1-3 The main difference in the illustrated embodiment lies in the different structure of the first connecting terminal 31.

[0063] like Figures 4 to 5 As shown in the illustrated embodiment, the first connecting terminal 31 includes a first body 311 and a second body 312. One end of the second body 312 is vertically connected to the middle portion of the first body 311, making the first connecting terminal 31 T-shaped.

[0064] like Figures 4 to 5As shown in the illustrated embodiment, first side wings 31a are formed on both sides of each end of the first body 311, and the first side wings 31a are toothed so as to be crimped to the signal transmission bus 1 in a piercing crimping manner.

[0065] As shown in the illustrated embodiment, second side wings 31b are formed on both sides of one end of the second body 312, and the second side wings 31b are toothed so as to be crimped to the electrical connector 30 in a piercing crimping manner. Figures 4 to 5

[0066] However, it should be noted that the structure of the first connection terminal 31 of the present application is not limited to the illustrated embodiment, and can also have other structures, for example, as shown in the following embodiment. Figure 6 As shown in the illustrated embodiment, the first connection terminal 31 can include a first body 311 and a second body 312, and one end of the second body 312 is connected perpendicularly to one end of the first body 311, so that the first connection terminal 31 is in the shape of an L. First side wings 31a are formed on both sides of the other end of the first body 311, and the first side wings 31a are toothed so as to be crimped to the signal transmission bus 1 in a piercing crimping manner. Second side wings 31b are formed on both sides of the other end of the second body 312, and the second side wings 31b are toothed so as to be crimped to the electrical connector 30 in a piercing crimping manner.

[0067] As shown in the illustrated embodiment, the first side wings 31a on both sides of each end of the first body 311 are offset by a predetermined distance in the extension direction of the first body 311, so that the first side wings 31a on both sides are offset from each other after being crimped to the signal transmission bus 1, which can improve the electrical connection performance between the first connection terminal 31 and the signal transmission bus 1. Figures 4 to 5 As shown in the illustrated embodiment, the second side wings 31b on both sides of one end of the second body 312 are offset by a predetermined distance in the extension direction of the second body 312, so that the second side wings 31b on both sides are offset from each other after being crimped to the electrical connector 30, which can improve the electrical connection performance between the first connection terminal 31 and the electrical connector 30.

[0068] Figures 4 to 5 As shown in the illustrated embodiment, since the first connection terminal 31 is in the shape of a T, the electrical connector 30 arranged on the side of the signal transmission bus 1 also does not need to be bent, which can improve the electrical connection performance between the electrical connector 30 and the signal transmission bus 1.

[0069] As shown in the illustrated embodiment, since the first connection terminal 31 is in the shape of a T, the electrical connector 30 arranged on the side of the signal transmission bus 1 also does not need to be bent, which can improve the electrical connection performance between the electrical connector 30 and the signal transmission bus 1. Figures 4 to 5 In addition to the above differences,

[0070] the other technical features of the illustrated embodiment are the same as those of the first embodiment. Figures 4-5 Figures 1-3 ​​​The embodiments shown are basically the same, and reference can be made to Figures 1-3 The embodiments shown are basically the same, and reference can be made to

[0071] In another exemplary embodiment of the present application, as shown in Figure 7 The aforementioned electrical connection assembly 3 can further comprise a temperature sensor assembly 34 for detecting the temperature of the battery busbar 2, which is electrically connected with the second connection terminal 32.

[0072] Although not shown, in another exemplary embodiment of the present application, the aforementioned battery pack signal acquisition device can further comprise a bracket. The signal transmission bus 1 and the electrical connection assembly 3 can be respectively mounted on the bracket.

[0073] As shown in Figures 1 to 5 In one exemplary embodiment of the present application, an electrical connection assembly 3 for electrically connecting the battery busbar 2 to the signal transmission bus 1 to acquire the electrical parameters of the battery cell is disclosed.

[0074] As shown in Figures 1 to 5 In the illustrated embodiment, the electrical connection assembly 3 comprises an electrical connector 30 and a first connection terminal 31. One end of the first connection terminal 31 is connected with and electrically connected with the electrical connector 30. The other end of the first connection terminal 31 is crimped to the signal transmission bus 1 to electrically connect the electrical connection assembly 3 to the signal transmission bus 1. In one exemplary embodiment of the present application, the signal transmission bus 1 is a flexible flat cable or a flexible printed circuit, and the first connection terminal 31 is adapted to be crimped to the signal transmission bus 1 in a piercing crimping manner.

[0075] As shown in Figures 1 to 5 In the illustrated embodiment, the electrical connection assembly 3 further comprises a second connection terminal 32, one end of which is crimped to the electrical connector 30, and the other end of which is electrically connected to the battery busbar 2 to acquire the electrical signal of the battery cell.

[0076] Those skilled in the art can understand that the above-described embodiments are exemplary, and those skilled in the art can make improvements, and the structures described in various embodiments can be freely combined without structural or principle conflicts, and these changes shall fall within the scope of protection of the present application.

[0077] Although the present application is described in conjunction with the accompanying drawings, the embodiments disclosed in the drawings are intended to exemplarily illustrate the preferred embodiments of the present application, and cannot be understood as a limitation of the present application.

[0078] While some embodiments of the general inventive concept have been shown and described, it is to be understood that changes can be made in these embodiments, without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the claims and their equivalents.

[0079] It should be noted that the word "comprising" does not exclude the presence of elements or steps other than those listed and / or the presence of quantifiers other than one. Further, any claims employing the word "a" are intended to mean "one or more" unless explicitly stated to the contrary. Moreover, any reference prices of claim elements are not to be construed as limiting the scope of the application.

Claims

1. A battery pack signal acquisition device, comprising: The signal transmission bus (1) is a flexible flat cable or a flexible printed circuit board; and Multiple electrical connection components (3) are used to electrically connect multiple battery cells to the signal transmission bus respectively, so as to collect the electrical parameters of the multiple battery cells. Its features are: The electrical connection component and the signal transmission bus are respectively formed, detachably connected to each other, and electrically conductive. The electrical connection component includes: Soldering terminals are used to be soldered onto battery cells. An electrical connector, which is a flexible electrical connector, includes a flexible thin film carrier and conductive traces integrated on the flexible thin film carrier; The first connection terminal has one end crimped to the electrical connector and electrically conductive via a piercing crimping method, and the other end crimped to the signal transmission bus via a piercing crimping method; and The second connecting terminal has one end pierced and crimped to the electrical connector, and the other end crimped to the soldering terminal. The electrical connector also includes a fuse, which is integrated into the flexible thin-film carrier and electrically connected to the conductive trace.

2. The battery pack signal acquisition device according to claim 1, characterized in that: The first connecting terminal includes a body extending in a straight line, with first side wings formed on both sides of one end of the body and second side wings formed on both sides of the other end. The first side wing and the second side wing are symmetrically arranged at both ends of the main body, so that the first side wing and the second side wing do not need to be distinguished during use.

3. The battery pack signal acquisition device according to claim 1, characterized in that: The first connecting terminal includes a first body and a second body, with one end of the second body vertically connected to the middle part of the first body, making the first connecting terminal T-shaped.

4. The battery pack signal acquisition device according to claim 1, characterized in that: The first connection terminal includes a first body and a second body, with one end of the second body vertically connected to one end of the first body, making the first connection terminal L-shaped.

5. The battery pack signal acquisition device according to claim 1, characterized in that: The fuse includes a surface mount fuse suitable for mounting on the flexible film carrier in a surface mount manner and / or a conductive trace fuse suitable for forming conductive traces on the flexible film carrier.

6. The battery pack signal acquisition device according to claim 1, characterized in that: The electrical connector is a flexible flat cable, a flexible printed circuit board, or a flexible wire.

7. The battery pack signal acquisition device according to claim 1, characterized in that: The battery pack signal acquisition device includes multiple electrical connectors arranged at the ends and sides of the signal transmission bus. The electrical connectors arranged at the sides of the signal transmission bus are bent into a non-linear shape, while the electrical connectors arranged at the ends of the signal transmission bus are not bent.

8. The battery pack signal acquisition device according to claim 1, characterized in that: The electrical connection assembly further includes a temperature sensor assembly for detecting the temperature of the battery cell, the temperature sensor assembly being electrically connected to the second connection terminal.

9. The battery pack signal acquisition device according to any one of claims 1 to 8, characterized in that: It also includes a support frame; The signal transmission bus and the electrical connection assembly are respectively mounted on the bracket.

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