Battery connection module

Abstract

The present disclosure provides a battery connection module, comprising: a plurality of busbars for connecting a plurality of batteries of a battery array; the sampling circuit boards extend in the length direction from back to front, each sampling circuit board comprises a first flexible circuit board and a second flexible circuit board which are independent from each other and can be overlapped with each other, the first flexible circuit board extends in a continuous convex-concave waveform mode in the length direction, and the second flexible circuit board extends in a convex-concave waveform mode in the length direction. The first flexible circuit board is provided with a plurality of left side convex parts facing the left side, the left side convex parts are provided with acquisition connecting parts connected to voltage acquisition points, the second flexible circuit board extends in a continuous convex-concave waveform mode in the length direction, the second flexible circuit board is provided with a plurality of right side convex parts facing the right side, and the acquisition connecting parts are connected to the voltage acquisition points. The right side convex part is provided with an acquisition connection part connected to a voltage acquisition point, and the left side convex part and the right side convex part are staggered along the length direction; and the integrated flexible circuit board is connected to the sampling circuit board.

Description

Technical Field

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

[0002] Chinese patent CN209401680U discloses a battery module, which includes: a plurality of batteries arranged in the length direction; an end plate, which is arranged at the end of the plurality of batteries in the length direction; an FPC including a main body and a bending part, the main body is located above the corresponding battery in the height direction and is electrically connected to the corresponding battery, the bending part is bent and extended from the main body and is located at the lower side of the main body, and the bending part is fixedly connected to the end plate; a connector is fixedly connected to the bending part of the FPC and is electrically connected to the FPC. The connector is fixedly connected to the bending part of the FPC, and the bending part is fixedly connected to the end plate, so that the connector is fixed to the end plate via the FPC, and when the connector is subjected to vibration shock, the flexible characteristics of the FPC can be used to transmit and release the shock.

[0003] As mentioned above, the main body of the FPC described in the patent is usually connected to multiple sampling points, such as voltage collection and temperature collection. The more collection points there are, the more circuit traces there are on the FPC. The FPC needs to be wider, and even a multilayer board needs to be used for wiring. The difficulty of production will be greatly increased, and the cost is high. Furthermore, each FPC is connected to a connector separately. The connectors are located on the side and the distance between the connectors is very far apart, which will cause difficulties in operation and connection between the battery packs. In addition, the battery modules need to be separated by a distance to avoid covering the multiple connectors on the side, so as to facilitate the connection of the cables. The design scheme of the connector located on the side adopted in the above patent is obviously not conducive to the connection of the cables. Summary of the invention

[0004] A main purpose of the present disclosure is to overcome at least one defect of the above-mentioned prior art and provide a battery connection module with lower cost.

[0005] To achieve the above objectives, the present disclosure adopts the following technical solutions:

[0006] According to one aspect of the present disclosure, there is provided a battery connection module for connecting a battery array, the battery connection module comprising: a plurality of bus bars for connecting a plurality of batteries of the battery array; a plurality of sampling circuit boards, the sampling circuit boards extending in a length direction from back to front, the sampling circuit boards comprising a first flexible circuit board and a second flexible circuit board which are independent and can overlap with each other, the first flexible circuit board extending in a continuous convex-concave waveform along the length direction, the first flexible circuit board having a plurality of left convex portions facing the left direction, the left convex portions being provided with a collection connection portion connected to a voltage collection point, the second flexible circuit board extending in a continuous convex-concave waveform along the length direction, the second flexible circuit board having a plurality of right convex portions facing the right direction, the right convex portions being provided with a collection connection portion connected to the voltage collection point, the left convex portions and the right convex portions being staggered along the length direction; an integrated flexible circuit board connected to the sampling circuit board.

[0007] According to one embodiment of the present disclosure, the collection connection portion of the left side convex portion is integrally constructed as a connection protrusion protruding toward the left side from the left side convex portion, and the connection protrusion is connected to the bus serving as a voltage collection point through a conductive sheet, the proximal end of the conductive sheet is connected to the connection protrusion and is located on the left side outside the left side convex portion, and the other distal end of the conductive sheet is connected to the bus; the collection connection portion of the right side convex portion is integrally constructed as a connection protrusion protruding toward the right side from the right side convex portion, and the connection protrusion is connected to the bus through a conductive sheet, the proximal end of the conductive sheet is connected to the connection protrusion and is located on the right side outside the right side convex portion, and the other distal end of the conductive sheet is connected to the bus.

[0008] According to one embodiment of the present disclosure, the first flexible circuit board and the second flexible circuit board are attached with at least one arm flexible circuit board, and the proximal end of the arm flexible circuit board is connected to the connecting protrusion of the left protrusion or the right protrusion; wherein the arm flexible circuit board includes a temperature sensor.

[0009] According to one embodiment of the present disclosure, the support arm flexible circuit board also includes a cover, a support plate and a reinforcement plate; the proximal end of the support arm flexible circuit board is connected to one side of a connecting protrusion of the left protrusion or the right protrusion, and the reinforcement plate is arranged on the other side opposite to the connecting protrusion; the temperature sensor is arranged on one side of the distal end of the support arm flexible circuit board, and the support plate is arranged on the opposite side corresponding to the position of the temperature sensor to support the temperature sensor; the cover is used to cover and protect the temperature sensor; the proximal end of the support plate is connected to the support arm flexible circuit board, and the other distal end of the support plate is connected to the bus.

[0010] According to one embodiment of the present disclosure, the arm flexible circuit board further includes a conductive sheet, and the conductive sheet is connected between the arm flexible circuit board and the bus bar.

[0011] According to one embodiment of the present disclosure, the first flexible circuit board has a plurality of integrally constructed button holes, and the button holes are constructed on a protrusion protruding toward the left side on the left protrusion; the second flexible circuit board has a plurality of integrally constructed button holes, and the button holes are constructed on a protrusion protruding toward the right side on the right protrusion; wherein, the battery connection module further includes a plurality of carrying trays, and the carrying trays are arranged between the battery array and the bus, and the carrying trays are provided with button blocks, and the button blocks are assembled and fixed to the button holes.

[0012] According to one embodiment of the present disclosure, the first flexible circuit board includes a short sub-circuit board and a long sub-circuit board overlapped with each other, the length of the long sub-circuit board is greater than the length of the short sub-circuit board, the short sub-circuit board is overlapped on the front section of the long sub-circuit board, a conductive sheet is provided on the left convex portion of the short sub-circuit board, a conductive sheet is provided on the left convex portion of the long sub-circuit board at the portion not overlapping the short sub-circuit board, and no conductive sheet is provided on the portion of the long sub-circuit board overlapping the short sub-circuit board; the second flexible circuit board includes a short sub-circuit board and a long sub-circuit board, the length of the long sub-circuit board is greater than the length of the short sub-circuit board, the short sub-circuit board is overlapped on the front section of the long sub-circuit board, a conductive sheet is provided on the left convex portion of the short sub-circuit board, a conductive sheet is provided on the left convex portion of the long sub-circuit board at the portion not overlapping the short sub-circuit board, and no conductive sheet is provided on the portion of the long sub-circuit board overlapping the short sub-circuit board.

[0013] It can be seen from the above technical solutions that the advantages and positive effects of the battery connection module proposed in the present disclosure are:

[0014] The present disclosure arranges the left convex part of the first flexible circuit board and the right convex part of the second flexible circuit board in a staggered manner along the length direction, so that the connection convex piece, the conductive piece, and the support arm flexible circuit board of the first flexible circuit board are all arranged on the left side of the left convex part, and the connection convex piece, the conductive piece, and the support arm flexible circuit board of the second flexible circuit board are all arranged on the right side of the right convex part. Accordingly, after the first flexible circuit board and the second flexible circuit board are stacked, the conductive piece and the support arm flexible circuit board on the first flexible circuit board and the second flexible circuit board are respectively located on the left and right sides and staggered along the length direction without overlapping. Through the design of splitting the sampling circuit board into two flexible circuit boards and then combining them, the present disclosure can reduce the number of wiring layers and density on each flexible circuit board, so that a more cost-effective flexible circuit board can be used for production. Furthermore, through the stacking design of the sampling circuit boards, the present disclosure can greatly reduce the space occupied by the sampling circuit boards. In addition, the present invention can separately manufacture two flexible circuit boards that are overlapped with each other in the sampling circuit board, and the main body of the flexible circuit board extends in a straight line in a length direction. Moreover, in the panel arrangement of the raw material flexible circuit board, the convex portion of one of the adjacent flexible circuit boards can be arranged in a manner of correspondingly extending into the concave portion of the other flexible circuit board. During production, the flexible circuit boards can be more tightly assembled, and more flexible circuit boards can be arranged in the same area, which greatly reduces the production difficulty, improves the utilization rate of materials, and greatly reduces costs.

[0015] Another main purpose of the present disclosure is to overcome at least one of the above-mentioned defects of the prior art and provide a battery connection module with lower cost.

[0016] To achieve the above objectives, the present disclosure adopts the following technical solutions:

[0017] According to another aspect of the present disclosure, a battery connection module is provided for connecting a battery array, the battery connection module comprising: a bus bar for connecting a plurality of batteries of the battery array; a plurality of sampling circuit boards, the sampling circuit boards extending in a length direction from the back to the front, the front end of the sampling circuit boards having a connection portion bent to the front side surface of the battery array; an integrated flexible circuit board connected to the connection portion of the sampling circuit board, at least two sampling circuit boards being connected to one integrated flexible circuit board, the integrated flexible circuit board having an output portion located on the top surface of the battery array, a transition portion located on the front side surface of the battery array, and a turning portion located between the output portion and the transition portion. The output portion, the steering portion and the adapter portion form an integrated structure arranged in a straight line in sequence when unfolded; wherein, in the unfolded state, the output portion has a support portion and a plurality of fingers extending from the support portion, the fingers are used to form a connector portion for setting a connector, the steering portion is connected to at least one end of the support portion to be arranged in a straight line, and the adapter portion is connected to the other end of the steering portion to be arranged in a straight line; wherein, in the folded state, the steering portion extends toward the front side surface on the top surface after being obliquely folded with the output portion, and then the steering portion is turned from the top surface to the front side surface after being bent at least once, and the adapter portion is located on the front side surface after being obliquely folded relative to the steering portion.

[0018] According to one embodiment of the present disclosure, in the unfolded state, the output portion has at least one supporting portion and a plurality of fingers are arranged side by side on the same side of the supporting portion and along the length direction; in the folded state, the fingers on the two supporting portions folded oppositely are made to face each other by folding oppositely 180 degrees along the supporting portions, wherein every two facing fingers are used to constitute the connector portion.

[0019] According to one embodiment of the present disclosure, the steering portion extends toward the front side surface on the top surface after being obliquely folded 45 degrees with the output portion, and then the steering portion is turned from the top surface to the front side surface after being bent 90 degrees at least once; the adapter portion is connected to the other end of the steering portion and arranged in a straight line, and the adapter portion is located on the front side surface after being obliquely folded 45 degrees relative to the steering portion.

[0020] According to one embodiment of the present disclosure, the integrated flexible circuit board includes a first integrated flexible circuit board, which includes a supporting portion, two turning portions and two transition portions; in an unfolded state, the turning portion and the transition portion are sequentially provided on opposite sides of the supporting portion; in a folded state, the two turning portions are respectively folded obliquely with the supporting portion and relatively close to each other, and the two transition portions are respectively located on the front side after being obliquely folded relative to the turning portion and on opposite sides of the turning portion and extend in opposite directions.

[0021] According to one embodiment of the present disclosure, the integrated flexible circuit board includes a second integrated flexible circuit board, and the second integrated flexible circuit board includes two supporting parts, a turning part and a transition part; in the unfolded state, the two supporting parts are arranged side by side up and down, the two supporting parts are connected to the same end of the turning part, and the transition part is connected to the other end of the turning part; in the folded state, the two supporting parts extend in opposite directions through the oblique folding between the supporting parts and the turning parts, and the transition part is located on the front side and on one side of the turning part after being obliquely folded relative to the turning part.

[0022] It can be seen from the above technical solutions that the advantages and positive effects of the battery connection module proposed in the present disclosure are:

[0023] The present invention can connect at least two sampling flexible circuit boards to the same integrated flexible circuit board, and through the folding structure of the integrated flexible circuit board, turn from the front side of the battery array to the top surface of the battery array, arrange multiple output connectors on the top surface of the battery array and arrange them in a centralized manner. Furthermore, the integrated flexible circuit board has an integrated structure in which the output portion, the turning portion, and the adapter portion are arranged in a straight line when unfolded. In the panel arrangement of the raw material flexible circuit board, more flexible circuit boards can be arranged more closely in the same area, which greatly reduces the production difficulty and improves the utilization rate of materials, and greatly reduces costs. In addition, at least two sampling circuit boards are connected to an integrated flexible circuit board, and then through the folding structure of the integrated flexible circuit board, turn from the front side to the top surface, so that multiple output electrical connectors can be located on the same top surface and close to each other in a compact arrangement mode, realizing the layout of flexible circuit boards on different planes and reducing costs.

[0024] Another main purpose of the present disclosure is to overcome at least one defect of the above-mentioned prior art and provide a battery connection module with lower cost.

[0025] To achieve the above objectives, the present disclosure adopts the following technical solutions:

[0026] According to another aspect of the present disclosure, a battery connection module is provided for connecting a battery array, the battery connection module comprising: a plurality of bus bars for connecting a plurality of batteries of the battery array, the bus bars having a voltage collection point; a plurality of sampling circuit boards, the sampling circuit boards extending in a length direction from back to front, the front end of the sampling circuit boards having a connection portion bent to the front side of the battery array, the sampling circuit boards comprising a first flexible circuit board and a second flexible circuit board which are each independent and can be overlapped with each other, the first flexible circuit board extending in a continuous convex-concave waveform along the length direction, the first flexible circuit board having a plurality of left side convex portions facing the left direction, the left side convex portions being provided with a collection connection portion connected to the voltage collection point, the second flexible circuit board extending in a continuous convex-concave waveform along the length direction, the second flexible circuit board having a plurality of right side convex portions facing the right direction, the right side convex portions being provided with a collection connection portion connected to the voltage collection point, the left side convex portions and the right side convex portions being connected along the length direction The directions are staggered; an integrated flexible circuit board is connected to the connection part of the sampling circuit board, at least two sampling circuit boards are connected to one integrated flexible circuit board, the integrated flexible circuit board has an output part located on the top surface of the battery array, a transition part located on the front side of the battery array and a turning part located between the output part and the transition part, the output part, the turning part and the transition part form an integrated structure arranged in a straight line in sequence when unfolded; wherein, in the unfolded state, the output part has a support part and a plurality of fingers extending from the support part, the fingers are used to form a connector part for setting a connector, the turning part is connected to at least one end of the support part to form a straight line, and the transition part is connected to the other end of the turning part to form a straight line; wherein, in the folded state, the turning part extends on the top surface toward the front side after oblique folding with the output part, and then the turning part turns from the top surface to the front side after at least one bending, and the transition part is located on the front side after oblique folding relative to the turning part. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Various objects, features and advantages of the present disclosure will become more apparent by considering the following detailed description of preferred embodiments of the present disclosure in conjunction with the accompanying drawings. The accompanying drawings are merely exemplary illustrations of the present disclosure and are not necessarily drawn to scale. In the accompanying drawings, the same reference numerals always refer to the same or similar parts. Among them:

[0028] Figure 1 is a schematic diagram of a three-dimensional structure of a battery connection module when applied to a battery pack according to an exemplary embodiment;

[0029] Figure 2 yes Figure 1 An enlarged schematic diagram of a portion of the area shown;

[0030] Figure 3 yes Figure 1 A schematic diagram of the three-dimensional structure of a battery connection module is shown;

[0031] Figure 4 yes Figure 1 A three-dimensional exploded schematic diagram of a sample circuit board is shown;

[0032] Figure 5 yes Figure 4 A three-dimensional exploded schematic diagram of a partial structure shown;

[0033] Figure 6 yes Figure 5 An enlarged schematic diagram of a portion of the structure shown;

[0034] Figure 7 yes Figure 5 An enlarged schematic diagram of a portion of the structure shown;

[0035] Figure 8 is a perspective exploded schematic diagram of an integrated flexible circuit board of a battery connection module according to another exemplary embodiment.

[0036] Fig. 9 yes Figure 8 A schematic diagram of the three-dimensional structure of the first integrated flexible circuit board in a top view is shown;

[0037] Fig.10 yes Figure 8 A schematic diagram of the three-dimensional structure of the first integrated flexible circuit board when viewed from above is shown;

[0038] Fig.11 yes Figure 8 A schematic plan view of a first integrated flexible circuit board in an unfolded state is shown;

[0039] Fig.12 yes Figure 8 A schematic diagram of the three-dimensional structure of the second integrated flexible circuit board in a top view is shown;

[0040] Fig.13 yes Figure 8 A schematic diagram of the three-dimensional structure of the second integrated flexible circuit board when viewed from above is shown;

[0041] Fig.14 yes Figure 8 A schematic plan view of a second integrated flexible circuit board in an unfolded state is shown;

[0042] Fig.15 is a schematic diagram of a three-dimensional structure of a sampling circuit board of a battery connection module according to another exemplary embodiment;

[0043] Fig.16 yes Fig.15A three-dimensional exploded schematic diagram of a sampling circuit board is shown.

[0044] The following are the descriptions of the reference numerals:

[0045] 100. Busbar; 231. Temperature sensor;

[0046] 200. Sampling circuit board; 232. Cover;

[0047] 201. Connecting part; 233. Support plate;

[0048] 2011. Connector 234. Reinforcement plate;

[0049] 210. First flexible circuit board; 235. Conductive sheet;

[0050] 2101. Short sub-circuit board; 301. First integrated flexible circuit board;

[0051] 2102. Long sub-circuit board; 302. Second integrated flexible circuit board;

[0052] 21021. Buffer unit; 310. Output unit;

[0053] 211. Connecting lug; 311. Supporting part;

[0054] 212. Conductive sheet; 312. Finger;

[0055] 213. Lug; 320. Adapter;

[0056] 2131. Button hole; 330. Steering part;

[0057] 214. Left convex part; 340. Connector;

[0058] 220. Second flexible circuit board; 400. Carrying tray;

[0059] 2201. Short sub-circuit board; 410. Buckle block;

[0060] 2202. Long sub-circuit board; 420. Fixed column;

[0061] 221. Connecting tab; 500. Battery pack;

[0062] 222. Conductive sheet; 510. Battery;

[0063] 223. Lug; 511. Electrode;

[0064] 2231. Button hole; 610. Cover plate;

[0065] 224. Right convex part; 620. Front side panel.

[0066] 230. Arm flexible circuit board; DETAILED DESCRIPTION

[0067] Typical embodiments that embody the features and advantages of the present disclosure will be described in detail in the following description. It should be understood that the present disclosure can have various changes in different embodiments without departing from the scope of the present disclosure, and the descriptions and drawings therein are essentially for illustrative purposes rather than for limiting the present disclosure.

[0068] In the following description of different exemplary embodiments of the present disclosure, reference is made to the accompanying drawings, which form a part of the present disclosure and in which different exemplary structures, systems and steps that can implement multiple aspects of the present disclosure are shown by way of example. It should be understood that other specific schemes of components, structures, exemplary devices, systems and steps can be used, and structural and functional modifications can be made without departing from the scope of the present disclosure. Moreover, although the terms "above", "between", "within", etc. may be used in this specification to describe different exemplary features and elements of the present disclosure, these terms are used herein only for convenience, such as according to the direction of the examples described in the accompanying drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of the present disclosure.

[0069] See also Figure 1 , which representatively shows a schematic diagram of the three-dimensional structure of the battery connection module proposed in the present disclosure when applied to a battery pack. In this exemplary embodiment, the battery connection module proposed in the present disclosure is explained by taking the application of connecting a battery array as an example. It is easy for those skilled in the art to understand that in order to apply the relevant designs of the present disclosure to other types of energy supply equipment, various modifications, additions, substitutions, deletions or other changes are made to the specific embodiments described below, and these changes are still within the scope of the principle of the battery connection module proposed in the present disclosure.

[0070] like Figure 1 As shown, in one embodiment of the present disclosure, the battery connection module proposed in the present disclosure includes a plurality of bus bars 100, a plurality of sampling circuit boards 200 and an integrated flexible circuit board. Figures 2 to 7 , Figure 2 Representatively shown in Figure 1 An enlarged schematic diagram of a portion of the area shown; Figure 3 A three-dimensional structural schematic diagram of a battery connection module is representatively shown in FIG. Figure 4 Representatively shown in Figure 1 A three-dimensional exploded schematic diagram of a sampling circuit board 200 is shown; Figure 5 Representatively shown in Figure 4 A three-dimensional exploded schematic diagram of a partial structure shown; Figure 6Representatively shown in Figure 5 An enlarged schematic diagram of a portion of the structure shown; Figure 7 Representatively shown in Figure 5 The enlarged schematic diagram of the partial structure is shown. The structure, connection mode and functional relationship of the main components of the battery connection module proposed in the present disclosure will be described in detail below in conjunction with the above drawings.

[0071] like Figures 1 to 7 As shown, in one embodiment of the present disclosure, the battery array can be divided into a plurality of battery groups arranged side by side, such as but not limited to the four battery groups shown in the accompanying drawings. A plurality of busbars 100 are used to connect a plurality of batteries 510 of the battery array, the busbars 100 are connected to the electrodes 511 (e.g., poles) of the batteries 510, and the busbars 100 have voltage collection points. The sampling circuit board 200 extends along the length direction from the back to the front, and the sampling circuit board 200 includes a first flexible circuit board 210 and a second flexible circuit board 220 that are independent and can overlap each other. The first flexible circuit board 210 extends in a continuous convex-concave waveform along the length direction, and the first flexible circuit board 210 has a plurality of left convex portions 214 facing the left direction, and the left convex portion 214 is provided with a collection connection portion connected to the voltage collection point. The second flexible circuit board 220 extends in a continuous convex-concave waveform along the length direction, and the second flexible circuit board 220 has a plurality of right convex portions 224 facing the right direction, and the right convex portion 224 is provided with a collection connection portion connected to the voltage collection point. The left protrusion 214 of the first flexible circuit board 210 and the right protrusion 224 of the second flexible circuit board 220 are staggered along the length direction. The integrated flexible circuit board is connected to the sampling circuit board 200 .

[0072] Through the above design, the present disclosure arranges the left protrusion 214 of the first flexible circuit board 210 and the right protrusion 224 of the second flexible circuit board 220 staggered along the length direction, so that the collection connection parts (such as the connection protrusion 211, the conductive sheet 212, the support arm flexible circuit board 230, etc.) of the first flexible circuit board 210 are all arranged on the left side of the left protrusion 214, and the collection connection parts (such as the connection protrusion 221, the conductive sheet 222, the support arm flexible circuit board 230, etc.) of the second flexible circuit board 220 are all arranged on the right side of the right protrusion 224. Accordingly, after the first flexible circuit board 210 and the second flexible circuit board 220 are stacked, the collection connection parts (such as the connection protrusion, the conductive sheet, the support arm flexible circuit board 230, etc.) on the first flexible circuit board 210 and the second flexible circuit board 220 are respectively located on the left and right sides and staggered along the length direction without overlapping. Through the design of splitting the above sampling circuit board 200 into two flexible circuit boards and then combining them, the present disclosure can reduce the number of wiring layers and density on each flexible circuit board, so that a more cost-effective flexible circuit board can be used for production, such as a single-layer flexible circuit board. Furthermore, through the overlapping design of the above sampling circuit board 200, the present disclosure can significantly reduce the space occupied by the sampling circuit board 200. In addition, the present disclosure can separately produce the two flexible circuit boards that overlap each other in the sampling circuit board 200, and the main body of the flexible circuit board extends in a straight line along a length direction, and in the panel arrangement of the raw material flexible circuit board, the convex part of one of the adjacent flexible circuit boards can be arranged in a manner that extends into the concave part of the other flexible circuit board. During production, the panel of the flexible circuit board can be more tightly arranged, and more flexible circuit boards can be arranged in the same area, which greatly reduces the difficulty of production and improves the utilization rate of materials, thereby significantly reducing costs.

[0073] It should be noted that the so-called "waveform" in this specification specifically refers to the first flexible circuit board 210 and the second flexible circuit board 220 being respectively in a continuous S-shaped structure, that is, extending along a serpentine path, and no matter the above-mentioned waveform, continuous S-shape or serpentine shape, they are all arranged along a plane parallel to the top surface of the battery 510 (for example, a horizontal plane). Furthermore, the so-called "continuous concave and convex" means that on the above-mentioned plane, the flexible circuit board has a plurality of bending units arranged continuously, of which one part convexly protrudes to the left and the other part convexly protrudes to the right, and the bending units convexly protruding to the left and the bending units convexly protruding to the right are arranged alternately along the overall length direction of the flexible circuit board, thereby forming a continuous concave and convex structure. For example, for the first flexible circuit board 210, its various collecting connection parts (such as the connecting protruding piece 211, the conductive piece 212, the arm flexible circuit board 230, etc.) are all located in the bending units convexly protruding to the left, and these bending units can be understood as "convex" parts, and the remaining bending units (i.e., the bending units convexly protruding to the right) can be understood as "concave" parts. Similarly, for the second flexible circuit board 220, its various collecting connection parts (such as the connecting protrusion 221, the conductive sheet 222, the support arm flexible circuit board 230, etc.) are all located in the bending units protruding to the right. These bending units can be understood as "convex" parts, and the remaining bending units (i.e., the bending units protruding to the left) can be understood as "concave" parts.

[0074] like Figure 1 and Figure 3 As shown, in one embodiment of the present disclosure, the battery connection module proposed in the present disclosure includes a plurality of bus bars 100, a plurality of sampling circuit boards 200 and an integrated flexible circuit board. These bus bars 100 are used to connect a plurality of batteries 510 of a battery array, and the bus bars 100 serve as voltage collection points. The sampling circuit board 200 extends along a length direction from back to front, and the front end of the sampling circuit board 200 has a connection portion bent to the front side of the battery array. A front side plate 620 is provided on the front side of the battery array 500, and the connection portion of the front end of the sampling circuit board 200 is located on the outer surface of the front side plate 620. The integrated flexible circuit board is connected to the connection portion of the sampling circuit board 200, and at least two sampling circuit boards 200 are connected to one integrated flexible circuit board.

[0075] like Figure 3As shown, in one embodiment of the present disclosure, the connection portion 201 of the sampling circuit board 200 and the integrated flexible circuit board (including the first integrated flexible circuit board 301 and the second integrated flexible circuit board 302) can be connected through a connector. For example, the connection portion 201 of the sampling circuit board 200 is provided with a connector 2011, and the integrated flexible circuit board is provided with a connector 340 (the connector 340 can be, for example, provided on the adapter portion 320 of the integrated flexible circuit board), and the connection portion 201 of the sampling circuit board 200 and the integrated flexible circuit board are connected and matched via the connection between the connector 2011 and the connector 340. Specifically, the above-mentioned connector structure can adopt a male and female plug-in type connector, such as but not limited to Figure 1 The connector 2011 shown is a "male connector" and the connector 340 is a "female connector". In some embodiments, the connector 2011 and the connector 340 may also adopt other types of connector structures, or the connection portion 201 of a sampling circuit board 200 and an integrated flexible circuit board may also be connected by only one connector, which is not limited to the above embodiments.

[0076] like Figure 6 In the first flexible circuit board 210 shown (the short sub-circuit board 2101 is used as an example for explanation), in one embodiment of the present disclosure, the collection connection portion of the left protrusion 214 is integrally constructed as a connection protrusion 211 protruding from the left protrusion 214 to the left, and the connection protrusion 211 is connected to the bus 100 through the conductive sheet 212. The proximal end of the conductive sheet 212 is connected to the connection protrusion 211 and is located on the left side of the left protrusion 214. The other distal end of the conductive sheet 212 is connected to the bus 100. Accordingly, the conductive sheet 212 is electrically connected to the circuit of the first flexible circuit board 210 for electrical collection (for example, collecting voltage, current or other electrical characteristics).

[0077] like Figure 7 In the second flexible circuit board 220 shown (the short sub-circuit board is used as an example for explanation), in one embodiment of the present disclosure, the collection connection portion of the right side protrusion 224 is integrally constructed as a connection protrusion 221 protruding from the right side protrusion 224 to the right side, and the connection protrusion 221 is connected to the bus 100 through the conductive sheet 222. The proximal end of the conductive sheet 222 is connected to the connection protrusion 221 and is located outside the right side of the right side protrusion 224, and the other distal end of the conductive sheet 222 is connected to the bus 100. Accordingly, the conductive sheet 222 is electrically connected to the circuit of the second flexible circuit board 220 for electrical collection (for example, collecting voltage, current or other electrical characteristics).

[0078] like Figure 4 and Figure 5As shown, in one embodiment of the present disclosure, no collection connection portion is provided on the right side of the first flexible circuit board 210 , that is, no connection protrusion 211 or conductive sheet 212 is provided on the right side of the first flexible circuit board 210 .

[0079] like Figure 4 and Figure 5 As shown, in one embodiment of the present disclosure, no collection connection portion is provided on the left side of the second flexible circuit board 220 , that is, no connection protrusion 221 or conductive sheet 222 is provided on the left side of the second flexible circuit board 220 .

[0080] like Figure 5 As shown, in one embodiment of the present disclosure, the first flexible circuit board 210 and the second flexible circuit board 220 are attached with at least one arm flexible circuit board 230, and the proximal end of the arm flexible circuit board 230 is connected to the connecting protrusion 211 of the left protrusion 214 or the connecting protrusion 221 of the right protrusion 224. On this basis, the arm flexible circuit board 230 includes a temperature sensor 231.

[0081] like Figure 6 The first flexible circuit board 210 (the short sub-circuit board 2101 is used as an example for explanation) and Figure 7 The second flexible circuit board 220 shown (the short sub-circuit board is used as an example for explanation), in one embodiment of the present disclosure, the arm flexible circuit board 230 further includes a cover 232, a support plate 233 and a reinforcing plate 234. The proximal end of the arm flexible circuit board 230 is connected to one side of a connecting protrusion 211 of the left protrusion 214 or one side of a connecting protrusion 221 of the right protrusion 224, and the reinforcing plate 234 is arranged on the opposite side of the connecting protrusion 211 or the connecting protrusion 221 to support and strengthen the strength of the end. The temperature sensor 231 is arranged on one side of the distal end of the arm flexible circuit board 230, and the support plate 233 is arranged on the opposite side corresponding to the position of the temperature sensor 231 to support the temperature sensor 231. The cover 232 is used to cover and protect the temperature sensor 231. The proximal end of the support plate 233 is connected to the arm flexible circuit board 230, and the other distal end of the support plate 233 is connected to the bus 100. Furthermore, the support plate 233 can use a thermally conductive material (such as but not limited to metal) to achieve a thermal conductive function, the support plate 233 can use a conductive material to achieve connection with a conductive circuit, and the support plate 233 can use a material that has both thermal and conductive properties, so that it can be used for both heat conduction and electrical collection purposes.

[0082] like Figure 6As shown, in one embodiment of the present disclosure, the support arm flexible circuit board 230 further includes a conductive sheet 235, which is connected between the support arm flexible circuit board 230 and the bus 100, thereby serving as electrical collection. Further, the support plate 233 and the conductive sheet 235 can be connected to different bus bars 100.

[0083] like Figure 4 and Figure 5 As shown, in one embodiment of the present disclosure, no arm flexible circuit board 230 is disposed on the right side of the first flexible circuit board 210 .

[0084] like Figure 4 and Figure 5 As shown, in one embodiment of the present disclosure, no arm flexible circuit board 230 is disposed on the left side of the second flexible circuit board 220 .

[0085] like Figure 6 As shown, in one embodiment of the present disclosure, the first flexible circuit board 210 has a plurality of integrally constructed buckle holes 2131, which are constructed on the protruding piece 213 protruding toward the left side on the left protrusion 214. On this basis, the battery connection module further includes a plurality of carrier plates 400, which are arranged between the battery array and the bus bar 100, and the carrier plates 400 are provided with buckle blocks 410, which are assembled and fixed with the buckle holes 2131.

[0086] like Figure 7 As shown, in one embodiment of the present disclosure, the second flexible circuit board 220 has a plurality of integrally constructed buckle holes 2231, which are constructed on the convex piece 223 protruding toward the right side on the right convex portion 224. On this basis, the battery connection module further includes a plurality of carrier plates 400, which are arranged between the battery array and the bus bar 100, and the carrier plates 400 are provided with buckle blocks 410, which are assembled and fixed with the buckle holes 2231.

[0087] like Figure 2 As shown, in one embodiment of the present disclosure, the carrier plate 400 is provided with a fixing column 420, which is used to fix the bus 100. For example, the fixing column 420 can pass through the corresponding through hole opened in the bus 100 and the head of the fixing column 420 is fixedly connected to the bus 100 by hot melting.

[0088] like Figure 4 and Figure 5As shown, in one embodiment of the present disclosure, the first flexible circuit board 210 includes a short sub-circuit board 2101 and a long sub-circuit board 2102. The length of the long sub-circuit board 2102 is greater than that of the short sub-circuit board 2101, and the short sub-circuit board 2101 is overlapped on the front section of the long sub-circuit board 2102. The conductive sheet 212 is disposed on the left convex portion 214 of the short sub-circuit board 2101, and the conductive sheet 212 is disposed on the left convex portion 214 of the long sub-circuit board 2102 in the portion (e.g., the rear section) that does not overlap the short sub-circuit board 2101. The conductive sheet 212 is not disposed on the portion (e.g., the front section) of the long sub-circuit board 2102 that overlaps the short sub-circuit board 2101, thereby staggering the positions of the conductive sheets 212 of the short sub-circuit board 2101 and the long sub-circuit board 2102 of the first flexible circuit board 210.

[0089] like Figure 4 and Figure 5 As shown, in one embodiment of the present disclosure, the arm flexible circuit board 230 can be disposed on at least one of the short sub-circuit board 2101 and the long sub-circuit board 2102 of the first flexible circuit board 210 .

[0090] In one embodiment of the present disclosure, the elongated sub-circuit board 2102 of the first flexible circuit board 210 may have a corrugated buffer portion 21021 .

[0091] In one embodiment of the present disclosure, the short sub-circuit board 2101 of the first flexible circuit board 210 may have a corrugated buffer portion.

[0092] In one embodiment of the present disclosure, two buckle holes 2131 at corresponding positions of at least two overlapping sub-circuit boards of different lengths of the first flexible circuit board 210 are overlapped together and assembled and fixed with the buckle block 410 .

[0093] like Figure 4 and Figure 5 As shown, in one embodiment of the present disclosure, the second flexible circuit board 220 includes a short sub-circuit board 2201 and a long sub-circuit board 2202, the length of the long sub-circuit board 2202 is greater than the length of the short sub-circuit board 2201, and the short sub-circuit board 2201 is overlapped on the front section of the long sub-circuit board 2202, a conductive sheet 222 is provided on the left side protrusion 214 of the short sub-circuit board 2201, and a conductive sheet 222 is provided on the left side protrusion 214 of the long sub-circuit board 2202 that does not overlap the short sub-circuit board 2201 (for example, the rear section), and the conductive sheet 222 is not provided on the part of the long sub-circuit board 2202 that overlaps the short sub-circuit board 2201 (for example, the front section), thereby the positions of the conductive sheets 222 of the short sub-circuit board 2201 and the long sub-circuit board 2202 of the second flexible circuit board 220 can be staggered.

[0094] like Figure 4 and Figure 5 As shown, in one embodiment of the present disclosure, the arm flexible circuit board 230 can be disposed on at least one of the short sub-circuit board 2201 and the long sub-circuit board 2202 of the second flexible circuit board 220 .

[0095] In one embodiment of the present disclosure, the elongated sub-circuit board 2202 of the second flexible circuit board 220 may have a corrugated buffer portion.

[0096] In one embodiment of the present disclosure, the short sub-circuit board 2201 of the second flexible circuit board 220 may have a corrugated buffer portion.

[0097] In one embodiment of the present disclosure, two buckle holes 2231 at corresponding positions of at least two overlapping sub-circuit boards of different lengths of the second flexible circuit board 220 are overlapped together and assembled and fixed with the buckle block 410 .

[0098] In one embodiment of the present disclosure, at least a portion of the button holes 2131 of the first flexible circuit board 210 and the button holes of the second flexible circuit board 220 are overlapped and fixed together.

[0099] See also Figures 8 to 14 , Figure 8 : A three-dimensional exploded schematic diagram of an integrated flexible circuit board of a battery connection module in another exemplary embodiment that can embody the principles of the present disclosure is representatively shown; Fig. 9 : A schematic diagram of the three-dimensional structure of the first integrated flexible circuit board 301 in a top view is representatively shown; Fig.10 : A schematic diagram of the three-dimensional structure of the first integrated flexible circuit board 301 in a bottom-up perspective is representatively shown; Fig.11 : A schematic plan view of the first integrated flexible circuit board 301 in an unfolded state is representatively shown; Fig.12 : A schematic diagram of the three-dimensional structure of the second integrated flexible circuit board 302 in a top view is representatively shown; Fig.13 : A schematic diagram of the three-dimensional structure of the second integrated flexible circuit board 302 in a bottom-up perspective is representatively shown; Fig.14 FIG. 4 representatively shows a plan view of the second integrated flexible circuit board 302 in an unfolded state.

[0100] like Figures 8 to 14As shown, in one embodiment of the present disclosure, the integrated flexible circuit board is connected to the connection part of the sampling circuit board 200, at least two sampling circuit boards 200 are connected to one integrated flexible circuit board, and the integrated flexible circuit board has an output part 310 located on the top surface of the battery array, a transition part 320 located on the front side of the battery array, and a turning part 330 located between the output part 310 and the transition part 320. The output part 310, the turning part 330 and the transition part 320 sequentially form an integral structure arranged in a straight line when unfolded. On this basis, in the unfolded state, the output part 310 has a support part 311 and a plurality of fingers 312 extending from the support part 311. In the folded state, the fingers 312 are used to form a connector part for setting a connector. In the unfolded state, the turning part 330 is connected to at least one end of the support part 311 to be arranged in a straight line, and the transition part 320 is connected to the other end of the turning part 330 to be arranged in a straight line. Furthermore, in the folded state, the turning portion 330 extends from the top surface toward the front side surface after being obliquely folded with the output portion 310, and then the turning portion 330 turns from the top surface to the front side surface after being bent at least once, and the adapter portion 320 is located at the front side surface after being obliquely folded relative to the turning portion 330. Figure 1 The output portion 310 is located on the top surface of the cover plate 610 on the top surface of the battery array, and the adapter portion 320 is located on the outer surface of the front side plate 620 on the front side of the battery array.

[0101] Through the above design, the present invention can connect at least two sampling flexible circuit boards to the same integrated flexible circuit board, and through the folding structure of the integrated flexible circuit board, turn from the front side of the battery array to the top surface of the battery array, and arrange multiple output connectors on the top surface of the battery array and arrange them in a centralized manner. Furthermore, the output portion 310, the turning portion 330 and the adapter portion 320 of the integrated flexible circuit board are arranged in a straight line when unfolded. In the panel arrangement of the raw material flexible circuit board, more flexible circuit boards can be arranged more closely in the same area, which greatly reduces the production difficulty and improves the utilization rate of materials, and greatly reduces costs. In addition, at least two sampling circuit boards 200 are connected to an integrated flexible circuit board, and then turn from the front side to the top surface through the folding structure of the integrated flexible circuit board, so that multiple output electrical connectors can be located on the same top surface and close to each other in a compact arrangement mode, realizing the layout of flexible circuit boards on different planes and reducing costs.

[0102] like Figures 9 to 11 (or Figure 12 to Figure 14), in one embodiment of the present disclosure, in the unfolded state, the output portion 310 has at least one support portion 311 and a plurality of fingers 312 are arranged side by side along the length direction on the same side of the support portion 311. In the folded state, by folding 180 degrees between the support portions 311, the fingers 312 on the two support portions 311 folded oppositely face each other, wherein each two facing fingers 312 are used to form a connector portion.

[0103] like Figures 9 to 11 (or Figure 12 to Figure 14 ), in one embodiment of the present disclosure, in the folded state, the steering portion 330 extends toward the front side surface on the top surface after being obliquely folded at 45 degrees with the output portion 310, and then the steering portion 330 is bent from the top surface to the front side surface after at least one 90-degree bend. In the unfolded state, the adapter portion 320 is connected to the other end of the steering portion 330 and arranged in a straight line. In the folded state, the adapter portion 320 is located on the front side surface after being obliquely folded at 45 degrees relative to the steering portion 330.

[0104] like Figures 9 to 11 As shown, in one embodiment of the present disclosure, the integrated flexible circuit board includes a first integrated flexible circuit board 301, and the first integrated flexible circuit board 301 includes a support portion 311, two turning portions 330 and two transition portions 320. On this basis, in the unfolded state, the turning portions 330 and the transition portions 320 are sequentially provided on opposite sides of the support portion 311. In the folded state, the two ends of the support portion 311 are folded 180 degrees toward the middle of the support portion 311, so that the folded support portion 311 has a double-layer structure, one layer is the middle of the support portion 311 in the unfolded state, and the other layer is the two ends of the support portion 311 in the unfolded state, and the two turning portions 330 are respectively connected to the two ends of the support portion 311 in the unfolded state. In the folded state, the two turning portions 330 are respectively folded obliquely with the support portion 311 and relatively close to each other, and the two transition portions 320 are respectively folded obliquely relative to the turning portions 330 and are located on the front side and on opposite sides of the turning portions 330 and extend in opposite directions.

[0105] like Figure 12 to Figure 14As shown, in one embodiment of the present disclosure, the integrated flexible circuit board includes a second integrated flexible circuit board 302, and the second integrated flexible circuit board 302 includes two support parts 311, a turning part 330 and a transition part 320. On this basis, in the unfolded state, the two support parts 311 are arranged side by side, the two support parts 311 are connected to the same end of the turning part 330, and the transition part 320 is connected to the other end of the turning part 330. In the folded state, the two ends of the two support parts 311 connected to the turning part 330 are folded 45 degrees in opposite directions, and the middle part of each support part 311 is folded 180 degrees to form a double-layer structure, and the two support parts 311 are partially overlapped. In the folded state, the two support parts 311 extend in opposite directions respectively through the oblique folding between the support parts 311 and the turning part 330, and the transition part 320 is located on the front side and on one side of the turning part 330 after being obliquely folded relative to the turning part 330.

[0106] See also Fig.15 and Fig.16 , Fig.15 : A three-dimensional structural schematic diagram of a sampling circuit board of a battery connection module in another exemplary embodiment that can embody the principles of the present disclosure is representatively shown; Fig.16 A three-dimensional exploded schematic diagram of a sampling circuit board is representatively shown in FIG.

[0107] like Fig.15 and Fig.16 As shown, in one embodiment of the present disclosure, for at least one sampling circuit board, the first flexible circuit board 210 may include only one circuit board structure, which is equivalent to only including the above-mentioned long sub-circuit board 2102 but not including the short sub-circuit board 2101, and the second flexible circuit board 220 may also include only one circuit board structure, which is equivalent to only including the above-mentioned long sub-circuit board 2202 but not including the short sub-circuit board 2201. On this basis, the difference between Figures 3 to 5 In the illustrated embodiment, the design scheme of "a conductive sheet is provided on the convex portion of the portion (e.g., the rear section) of the long sub-circuit board that does not overlap the short sub-circuit board, and a conductive sheet is not provided on the portion (e.g., the front section) of the long sub-circuit board that overlaps the short sub-circuit board" is adopted. When the first flexible circuit board 210 includes only one circuit board structure, the left convex portion 214 of the entire area thereof can be provided with a collecting connection portion such as a conductive sheet 212, and when the second flexible circuit board 220 includes only one circuit board structure, the right convex portion 224 of the entire area thereof can be provided with a collecting connection portion such as a conductive sheet 222.

[0108] It should be noted that the battery connection modules shown in the drawings and described in this specification are only a few examples of many types of battery connection modules that can adopt the principles of the present disclosure. It should be clearly understood that the principles of the present disclosure are by no means limited to any details of the battery connection modules shown in the drawings or described in this specification or any components of the battery connection modules.

[0109] The exemplary embodiments of the battery connection module proposed in the present disclosure are described and / or illustrated in detail above. However, the embodiments of the present disclosure are not limited to the specific embodiments described herein. On the contrary, the components and / or steps of each embodiment can be used independently and separately from other components and / or steps described herein. Each component and / or each step of an embodiment can also be used in combination with other components and / or steps of other embodiments. When introducing the elements / components / etc. described and / or illustrated herein, the terms "one", "one" and "above" are used to indicate the presence of one or more elements / components / etc. The terms "comprising", "including" and "having" are used to indicate the meaning of open inclusion and mean that in addition to the listed elements / components / etc., there may be other elements / components / etc. In addition, the terms "first" and "second" in the claims and the specification are used only as marks and are not numerical restrictions on their objects.

[0110] Although the battery connection module proposed by the present disclosure has been described according to various specific embodiments, those skilled in the art will recognize that the present disclosure can be implemented with modifications within the spirit and scope of the claims.

Claims

1. A battery connection module for connecting a battery array, the battery connection module comprising: A plurality of bus bars for connecting a plurality of batteries of the battery array; A plurality of sampling circuit boards, the sampling circuit boards extending in a length direction from the back to the front, the sampling circuit boards comprising a first flexible circuit board and a second flexible circuit board which are independent and can overlap each other, the first flexible circuit board extending in a continuous convex-concave waveform along the length direction, the first flexible circuit board having a plurality of left convex portions facing the left direction, the left convex portions being provided with a collection connection portion connected to a voltage collection point, the second flexible circuit board extending in a continuous convex-concave waveform along the length direction, the second flexible circuit board having a plurality of right convex portions facing the right direction, the right convex portions being provided with a collection connection portion connected to a voltage collection point, the left convex portions and the right convex portions being staggered along the length direction; as well as An integrated flexible circuit board is connected to the sampling circuit board.

2. The battery connection module according to claim 1, wherein: The collection connection portion of the left side convex portion is integrally constructed as a connection protrusion protruding toward the left side from the left side convex portion, and the connection protrusion is connected to the bus serving as a voltage collection point through a conductive sheet, the proximal end of the conductive sheet is connected to the connection protrusion and is located on the left side outside the left side convex portion, and the other distal end of the conductive sheet is connected to the bus; the collection connection portion of the right side convex portion is integrally constructed as a connection protrusion protruding toward the right side from the right side convex portion, and the connection protrusion is connected to the bus through a conductive sheet, the proximal end of the conductive sheet is connected to the connection protrusion and is located on the right side outside the right side convex portion, and the other distal end of the conductive sheet is connected to the bus.

3. The battery connection module according to claim 2, wherein: The first flexible circuit board and the second flexible circuit board are attached with at least one arm flexible circuit board, and the proximal end of the arm flexible circuit board is connected to the connecting protrusion of the left protrusion or the right protrusion; wherein the arm flexible circuit board includes a temperature sensor.

4. The battery connection module according to claim 3, wherein: The support arm flexible circuit board also includes a cover, a support plate and a reinforcement plate; the proximal end of the support arm flexible circuit board is connected to one side of a connecting protrusion of the left protrusion or the right protrusion, and the reinforcement plate is arranged on the other side opposite to the connecting protrusion; the temperature sensor is arranged on one side of the distal end of the support arm flexible circuit board, and the support plate is arranged on the opposite side corresponding to the position of the temperature sensor to support the temperature sensor; the cover is used to cover and protect the temperature sensor; the proximal end of the support plate is connected to the support arm flexible circuit board, and the other distal end of the support plate is connected to the bus.

5. The battery connection module according to claim 4, wherein: The arm flexible circuit board further includes a conductive sheet connected between the arm flexible circuit board and the bus bar.

6. The battery connection module according to claim 5, wherein: The first flexible circuit board has a plurality of integrally constructed button holes, and the button holes are constructed on a convex piece protruding toward the left side on the left convex portion; the second flexible circuit board has a plurality of integrally constructed button holes, and the button holes are constructed on a convex piece protruding toward the right side on the right convex portion; wherein, the battery connection module further includes a plurality of carrying plates, and the carrying plates are arranged between the battery array and the bus, and the carrying plates are provided with button blocks, and the button blocks are assembled and fixed with the button holes.

7. The battery connection module according to any one of claims 2 to 6, wherein: The first flexible circuit board includes a short sub-circuit board and a long sub-circuit board overlapped with each other, the length of the long sub-circuit board is greater than the length of the short sub-circuit board, the short sub-circuit board is overlapped with the front section of the long sub-circuit board, a conductive sheet is provided on the left convex portion of the short sub-circuit board, a conductive sheet is provided on the left convex portion of the long sub-circuit board at the portion not overlapping the short sub-circuit board, and no conductive sheet is provided on the portion of the long sub-circuit board overlapping the short sub-circuit board; the second flexible circuit board includes a short sub-circuit board and a long sub-circuit board, the length of the long sub-circuit board is greater than the length of the short sub-circuit board, the short sub-circuit board is overlapped with the front section of the long sub-circuit board, a conductive sheet is provided on the left convex portion of the short sub-circuit board, a conductive sheet is provided on the left convex portion of the long sub-circuit board at the portion not overlapping the short sub-circuit board, and no conductive sheet is provided on the portion of the long sub-circuit board overlapping the short sub-circuit board.

8. A battery connection module for connecting a battery array, the battery connection module comprising: A bus bar, used to connect multiple batteries of the battery array; A plurality of sampling circuit boards, each of which extends in a length direction from the back to the front, and each of which has a connection portion bent to the front side of the battery array at the front end; and An integrated flexible circuit board connected to the connection portion of the sampling circuit board, at least two sampling circuit boards are connected to one integrated flexible circuit board, the integrated flexible circuit board has an output portion located on the top surface of the battery array, a transition portion located on the front side of the battery array, and a turning portion located between the output portion and the transition portion, the output portion, the turning portion and the transition portion sequentially forming an integrated structure arranged in a straight line when unfolded; Wherein, in the unfolded state, the output portion has a support portion and a plurality of fingers extending from the support portion, the fingers are used to constitute a connector portion for setting a connector, the steering portion is connected to at least one end of the support portion to be arranged in a straight line, and the adapter portion is connected to the other end of the steering portion to be arranged in a straight line; Among them, in the folded state, the steering part extends toward the front side surface on the top surface after being obliquely folded with the output part, and then the steering part turns from the top surface to the front side surface after being bent at least once, and the transition part is located on the front side surface after being obliquely folded relative to the steering part.

9. The battery connection module according to claim 8, wherein: In the unfolded state, the output portion has at least one supporting portion and a plurality of fingers are arranged side by side on the same side of the supporting portion and along the length direction; in the folded state, the fingers on the two supporting portions folded oppositely are made to face each other by folding oppositely 180 degrees along the supporting portions, wherein every two facing fingers are used to constitute the connector portion.

10. The battery connection module according to claim 9, wherein: The steering portion extends toward the front side surface on the top surface after being obliquely folded at 45 degrees with the output portion, and then the steering portion is turned from the top surface to the front side surface after being bent 90 degrees at least once; the adapter portion is connected to the other end of the steering portion and arranged in a straight line, and the adapter portion is located on the front side surface after being obliquely folded at 45 degrees relative to the steering portion.

11. The battery connection module according to any one of claims 8 to 10, wherein: The integrated flexible circuit board includes a first integrated flexible circuit board, which includes a supporting portion, two turning portions and two transition portions; in an unfolded state, the turning portion and the transition portion are respectively provided in sequence on opposite sides of the supporting portion; in a folded state, the two turning portions are respectively folded obliquely with the supporting portion and relatively close to each other, and the two transition portions are respectively located on the front side after being obliquely folded relative to the turning portion and on opposite sides of the turning portion, extending in opposite directions.

12. The battery connection module according to any one of claims 8 to 10, wherein: The integrated flexible circuit board includes a second integrated flexible circuit board, and the second integrated flexible circuit board includes two supporting parts, a turning part and a transition part; in the unfolded state, the two supporting parts are arranged side by side up and down, the two supporting parts are connected to the same end of the turning part, and the transition part is connected to the other end of the turning part; in the folded state, the two supporting parts extend in opposite directions through the oblique folding between the supporting parts and the turning parts, and the transition part is located on the front side and on one side of the turning part after being obliquely folded relative to the turning part.

13. A battery connection module for connecting a battery array, the battery connection module comprising: A plurality of busbars, used to connect a plurality of batteries of the battery array, wherein the busbars have voltage collection points; A plurality of sampling circuit boards, the sampling circuit boards extending in a length direction from the back to the front, the front end of the sampling circuit boards having a connection portion bent to the front side of the battery array, the sampling circuit boards comprising a first flexible circuit board and a second flexible circuit board which are independent and can overlap each other, the first flexible circuit board extending in a continuous convex-concave waveform along the length direction, the first flexible circuit board having a plurality of left convex portions facing the left direction, the left convex portions being provided with a collection connection portion connected to the voltage collection point, the second flexible circuit board extending in a continuous convex-concave waveform along the length direction, the second flexible circuit board having a plurality of right convex portions facing the right direction, the right convex portions being provided with a collection connection portion connected to the voltage collection point, the left convex portions and the right convex portions being staggered along the length direction; as well as An integrated flexible circuit board connected to the connection portion of the sampling circuit board, at least two sampling circuit boards are connected to one integrated flexible circuit board, the integrated flexible circuit board has an output portion located on the top surface of the battery array, a transition portion located on the front side of the battery array, and a turning portion located between the output portion and the transition portion, the output portion, the turning portion and the transition portion sequentially forming an integrated structure arranged in a straight line when unfolded; Wherein, in the unfolded state, the output portion has a support portion and a plurality of fingers extending from the support portion, the fingers are used to constitute a connector portion for setting a connector, the steering portion is connected to at least one end of the support portion to be arranged in a straight line, and the adapter portion is connected to the other end of the steering portion to be arranged in a straight line; Among them, in the folded state, the steering part extends toward the front side surface on the top surface after being obliquely folded with the output part, and then the steering part turns from the top surface to the front side surface after being bent at least once, and the transition part is located on the front side surface after being obliquely folded relative to the steering part.

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