An integrated electrical connection board and battery module

Abstract

The present invention discloses an integrated electrical connection plate and a battery module, wherein the integrated electrical connection plate includes a connection plate body and a plurality of connection plates, the connection plate body being an injection-molded part, the connection plates being integrated with the connection plate body, and the connection plates on the connection plate body being arranged correspondingly to the combined structure of the battery module, each of the connection plates including at least two electrical connection portions for contacting the battery poles. By integrating the connection plates on the connection plate body, when assembling the battery module, it is only necessary to position the connection plate body relative to the module battery so that all the connection plates are positioned relative to the battery poles, and then the integrated electrical connection plate is fixedly connected to the module battery so that the electrical connection portions on the connection plates are crimped with the battery poles to achieve series connection of adjacent batteries. By adopting the integrated electrical connection plate, the electrical connection operation is simple and the connection efficiency is high during assembly of the battery module, which is more conducive to the automated assembly of the battery module.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium batteries, and in particular to an integrated electrical connection plate and a battery module. Background Art

[0002] A battery module is composed of several lithium-ion battery cells connected in series and parallel. To facilitate post-sales maintenance and reuse, adjacent cells are currently connected in series using connectors and screws. Installation is manual: an employee presses the connector into the threaded hole on the terminal with one hand and uses the other hand to place the screw and tighten it with a torque gun.

[0003] Because the battery module contains multiple connecting tabs, each tab must be manually aligned with the threaded hole in the terminal before being tightened during installation. This makes the module electrical connection operation cumbersome and inefficient. Moreover, when tightening the screws, the tab may be driven by the torque gun to rotate, resulting in inaccurate positioning of the tab. In extreme cases, the tab rotates onto an adjacent tab that has already been connected in series, causing a short circuit in the battery module and posing a safety hazard. In addition, the above module electrical connection method is not conducive to the automation of the tab installation, resulting in limited production capacity and quality consistency of the battery module. Summary of the Invention

[0004] The purpose of the present invention is to provide an integrated electrical connection plate and battery module to address the problems in the prior art that the module electrical connection operation is cumbersome, the connection efficiency is low, and it is not conducive to automated assembly. By integrating several connecting pieces on the connection plate, the electrical connection operation during battery module assembly is simple, accurate, and the connection efficiency is high, which is more conducive to the automated assembly of the battery module.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] An integrated electrical connection plate includes a connection plate body and several connection plates. The connection plate body is an injection-molded part. The connection plates are integrated with the connection plate body. The connection plates on the connection plate body are arranged corresponding to the combined structure of the battery module. Each of the connection plates includes at least two electrical connection parts for contacting the battery poles.

[0007] The present invention distributes the connecting pieces according to the connection positions of the battery poles in the module and integrates them with the connecting plate body. When assembling the battery module, it is only necessary to position the connecting plate body relative to the module battery so that all the connecting pieces are positioned relative to the battery poles. Then, the integrated electrical connecting plate is fixedly connected to the module battery so that the electrical connection parts on the connecting pieces are crimped with the battery poles to realize the series connection of adjacent batteries. By adopting the integrated electrical connecting plate, the electrical connection operation is simple and the connection efficiency is high during the assembly of the battery module, which is more conducive to the automated assembly of the battery module.

[0008] As a preferred embodiment of the present invention, each of the electrical connection portions is provided with a mounting hole for mounting a connector, and the connecting plate body is provided with a connecting through-hole corresponding to the mounting hole. During battery module assembly, screws are typically used as connectors, which are sequentially inserted through the connecting through-holes on the connecting plate body and the mounting holes on the electrical connection portion, and then connected to the threaded holes at the top of the battery post. This presses the electrical connection portion on the connecting piece against the top surface of the battery post, ensuring a reliable electrical connection between the connecting piece and the post and facilitating disassembly.

[0009] As a preferred embodiment of the present invention, the electrical connector has a protrusion for contacting the battery post, the mounting hole extends through the protrusion, and an inclined buffer portion is connected between the connector body and the protrusion. If the parallelism between the connector and the battery post surface is not perfect, the buffer portion can be deformed during screw tightening, thereby ensuring that the connector fully fits the battery post and forms good electrical contact between the connector and the battery post.

[0010] As a preferred embodiment of the present invention, the connecting piece is provided with a plurality of through-holes, evenly distributed in the middle and at both ends of the connecting piece. By providing a plurality of through-holes in the connecting piece, the connecting plate body can be embedded in the holes in the connecting piece during injection molding of the connecting piece and the connecting plate body, thereby increasing the connection force between the two and improving the adhesive strength of the connecting piece.

[0011] As a preferred embodiment of the present invention, the connecting plate body is provided with a flexible circuit board, which is equipped with several nickel sheets for connecting to the connecting sheets. This allows the flexible circuit board of the battery module to be pre-integrated with the connecting plate body, resulting in an integrated electrical connection plate that integrates both high-voltage and low-voltage connections, further improving module assembly efficiency.

[0012] As a preferred embodiment of the present invention, each connecting piece includes two electrical connection portions, with the connecting piece between the two electrical connection portions being an arched portion that is embedded in the connecting plate body. This allows the connecting piece to be partially embedded in the connecting plate body, effectively integrating the two and preventing the connecting piece from falling off. Furthermore, the arched portion in the middle of the connecting piece can pass through the upper side of the connecting plate body, facilitating electrical connection with the nickel sheet on the flexible printed circuit board.

[0013] As a preferred embodiment of the present invention, the connecting plate body is provided with a protective collar around the edge of the connecting hole. The top surface of the protective collar is higher than the top of the connector placed in the connecting hole. This configuration prevents the possibility of a short circuit during battery module assembly caused by metal tools connecting any two or more connecting pieces.

[0014] As a preferred embodiment of the present invention, the connecting plate body is provided with a stopper, which is used to define the position of the connecting plate body relative to the module battery. When installing the integrated electrical connecting plate, the stopper positions the connecting plate body relative to the module battery, thereby completely positioning each connecting piece relative to the battery post. This eliminates the need for additional tooling to position the connecting plate body, making battery module assembly more convenient and quicker.

[0015] As a preferred embodiment of the present invention, the stopper is a lower protective flange that surrounds the four edges of the lower side of the connecting plate body, with the inner wall of the lower protective flange nesting with the exterior of the module battery. When installing the integrated electrical connecting plate, the lower protective flange cooperates with the exterior of the module battery to limit the connecting plate body. This eliminates the need to manually hold the connecting plate body when tightening the screws, and the torque generated by the torque gun does not cause the connecting piece and the connecting plate body to rotate.

[0016] As a preferred solution of the present invention, an upper protective ridge is provided on the upper edge of the connecting plate body to protect the flexible circuit board on the upper side of the connecting plate body.

[0017] As a preferred solution of the present invention, the connecting piece is formed by stamping sheet metal, and the entire connecting piece is nickel-plated to improve corrosion resistance and electrical conductivity.

[0018] As a preferred solution of the present invention, a plurality of riveting through holes are evenly provided on the connecting plate body so as to fix the connecting plate body through the riveting through holes.

[0019] As a preferred embodiment of the present invention, a plurality of explosion-proof through holes are evenly distributed on the connecting plate body to avoid the explosion-proof valve on the top of the battery, so as to avoid obstruction when the explosion-proof valve explodes, and the high-temperature medium cannot be sprayed out in time, resulting in a continuous increase in the internal pressure of the battery, and further causing the battery to explode.

[0020] A battery module comprises a plurality of batteries arranged in a row and the above-mentioned integrated electrical connection plate, which is positioned and connected to the battery pack through the connection plate body, and the connection piece is in contact with the battery pole to form an electrical connection.

[0021] By positioning and connecting the integrated electrical connection plate with the battery pack, the battery module can make the connecting piece contact with the battery pole to form an electrical connection. During assembly, the electrical connection operation is simple and the connection efficiency is high, which is conducive to the automated assembly of the battery module.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0023] 1. The present invention distributes the connecting pieces according to the connection positions of the battery poles in the module and integrates them into a single piece by injection molding with the connecting plate body. When assembling the battery module, it is only necessary to position the connecting plate body relative to the module battery so that all the connecting pieces are positioned relative to the battery poles. The integrated electrical connecting plate is then fixedly connected to the module battery so that the electrical connection portions on the connecting pieces are crimped onto the battery poles to achieve series connection of adjacent batteries. By using this integrated electrical connecting plate, the electrical connection operation during battery module assembly is simple and the connection efficiency is high, which is more conducive to the automated assembly of the battery module.

[0024] 2. By making the middle of the connecting piece protrude upward relative to the two ends of the connecting piece, and the middle of the connecting piece is located on the upper side of the connecting plate body, and the two ends of the connecting piece are located on the lower side of the connecting plate body, so that the connecting piece is partially embedded in the connecting plate body, the integration effect of the two is good, and the connecting piece will not fall off. At the same time, after the middle of the connecting piece is located on the upper side of the connecting plate body, it is convenient to make electrical connection with the nickel sheet on the flexible circuit board;

[0025] 3. By providing a plurality of through attachment holes on the connecting piece, when the connecting piece and the connecting plate body are injection-molded and integrated, the connecting plate body can be embedded in the attachment holes on the connecting piece, thereby increasing the connection force between the two and improving the attachment strength of the connecting piece;

[0026] 4. A flexible circuit board is provided on the upper side of the connecting plate body, and the nickel sheet on the flexible circuit board is overlapped with the middle part of each connecting sheet and then welded for electrical connection. In this way, the flexible circuit board of the battery module can also be pre-integrated on the connecting plate body, so that the integrated electrical connection plate integrates high-voltage connection and low-voltage connection, further improving the module assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the integrated electrical connection board in the present invention.

[0028] Figure 2 for Figure 1 Flipped diagram.

[0029] Figure 3 for Figure 1 Schematic diagram of the connecting piece in .

[0030] Figure 4 Schematic diagram of the connection between the connecting piece and the battery pole in the present invention.

[0031] Figure 5 Schematic diagram of the battery module in the present invention.

[0032] Figure 6 for Figure 5 Schematic diagram after hiding the integrated electrical connection plate.

[0033] Figure 7for Figure 6 Schematic diagram of the middle layer board in .

[0034] Markings in the figure: 1-connecting plate body, 11-connecting through hole, 12-lower protective convex edge, 13-protective convex ring, 14-upper protective convex edge, 15-riveted through hole, 16-explosion-proof through hole, 2-connecting plate, 21-electrical connection part, 22-mounting hole, 23-attachment hole, 24-buffer part, 3-flexible circuit board, 31-nickel sheet, 4-battery pole, 5-module end plate, 6-module pull plate, 7-middle layer plate, 71-connecting cone, 72-partition plate, 8-screw, A-integrated electrical connection plate. DETAILED DESCRIPTION

[0035] The present invention will be described in detail below with reference to the accompanying drawings.

[0036] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0037] Example 1

[0038] This embodiment provides an integrated electrical connection board;

[0039] like Figure 1-Figure 4 As shown, the integrated electrical connecting plate in this embodiment includes a connecting plate body 1 and several connecting plates 2. The connecting plate body 1 is an injection-molded part, and the connecting plates 2 are injection-molded and integrated with the connecting plate body 1. The connecting plates 2 on the connecting plate body 1 are arranged corresponding to the connection positions of the adjacent battery poles 4 in the battery module. Each of the connecting plates 2 is provided with two electrical connecting parts 21 for contacting the battery poles, and the electrical connecting parts 21 are located at both ends of the connecting plate 2.

[0040] The present invention distributes the connecting pieces according to the connection positions of the battery poles in the module and integrates them into one body through injection molding. When assembling the battery module, it is only necessary to position the connecting plate body relative to the module battery so that all the connecting pieces are positioned relative to the battery poles. Then, the integrated electrical connecting plate is fixedly connected to the module battery so that the electrical connection parts on the connecting pieces are crimped with the battery poles to realize the series connection of adjacent batteries. By adopting the integrated electrical connecting plate, the electrical connection operation is simple and the connection efficiency is high during the assembly of the battery module, which is more conducive to the automated assembly of the battery module.

[0041] In this embodiment, each of the electrical connection portions 21 is provided with a mounting hole 22 for mounting a connector, and the connection plate body 1 is provided with a connection through-hole 11 corresponding to the mounting hole 22. During battery module assembly, screws are typically used as connectors, which are sequentially inserted through the connection through-holes on the connection plate body and the mounting holes on the electrical connection portion, and then connected to the threaded holes on the top of the battery post. This presses the electrical connection portion on the connection plate into contact with the top surface of the battery post, ensuring a reliable electrical connection between the connection plate and the post and facilitating disassembly.

[0042] The electrical connectors 21 at both ends of the connector 2 are each provided with a protrusion for contacting the battery post. The mounting holes 22 extend through the protrusions, and an inclined buffer 24 is connected between the connector body and the protrusion. The inclined buffers connect the connector's electrical connector to the connector's bodies at both ends. If the electrical connector is not perfectly parallel to the surface of the battery post, the buffers can deform during screw tightening, ensuring that the electrical connector is fully aligned with the battery post, thus achieving good electrical contact between the connector and the battery post.

[0043] In this embodiment, the protrusion on the electrical connection part 21 is a circular shape that fits the top of the battery pole and is a flat surface that protrudes toward one side of the battery pole. A mounting hole 22 for the screw 8 to pass through is provided in the center of the protrusion, and several connecting through holes 11 for the screw to pass through are provided on the connecting plate body 1 corresponding to the position of the mounting hole.

[0044] Of course, it is understandable that the protrusion on the electrical connection part in this embodiment can also be designed as other alternative structures, such as a spring-type U-shaped plug protruding toward the battery pole (no mounting hole is required), and a matching slot is opened on the battery pole. During installation, the U-shaped plugs at both ends of the connecting piece are inserted into the battery pole slots, so that the two sides of the U-shaped plug form pressure contact with the inner wall of the pole slot to achieve electrical connection, eliminating the process of tightening the screws and improving the connection efficiency.

[0045] In this embodiment, the connecting piece 2 is provided with a plurality of through-holes 23, which are evenly distributed in the middle and at both ends of the connecting piece 2. By providing a plurality of through-holes in the connecting piece, the connecting plate body can be embedded in the holes in the connecting piece when the connecting piece and the connecting plate body are injection-molded together, thereby increasing the connection force between the two and improving the adhesion strength of the connecting piece.

[0046] In this embodiment, a flexible circuit board 3 is installed on the upper side of the connecting plate body 1. The nickel sheet 31 on the flexible circuit board 3 overlaps the center of each connecting plate 2 and is then welded to form an electrical connection. This allows the flexible circuit board of the battery module to be pre-integrated onto the connecting plate body, resulting in an integrated electrical connection board that integrates both high-voltage and low-voltage connections, further improving module assembly efficiency. Of course, the flexible printed circuit board (FPC) can also be replaced with tinned flat copper conductors (FFC) or printed circuit board assembly (PCBA) as needed.

[0047] In this embodiment, the connecting piece between the two electrical connecting parts 21 forms an arched portion, and the arched portion is embedded in the connecting plate body 1, as shown in FIG. Figure 4 As shown, the middle portion of the connecting piece 2 protrudes upward relative to the ends of the connecting piece, and the middle portion of the connecting piece 2 is located on the upper side of the connecting plate body 1, while the ends of the connecting piece 2 are located on the lower side of the connecting plate body 1. In this way, the connecting piece is partially embedded in the connecting plate body, and the two are well integrated and the connecting piece will not fall off. At the same time, after the middle portion of the connecting piece is located on the upper side of the connecting plate body, it is convenient to make an electrical connection with the nickel sheet on the flexible circuit board.

[0048] In this embodiment, the connecting plate body 1 is provided with a protective collar 13 at the edge of the connecting hole 11. The protrusion of the protective collar 13 is higher than the top surface of the head of the screw 8 placed in the connecting hole 11. This arrangement can prevent metal tools from short-circuiting any two or more connecting plates during the battery module assembly process, which could cause a dangerous situation.

[0049] In this embodiment, the connecting plate body 1 is provided with a stopper, which is used to define the position of the connecting plate body 1 relative to the module battery. When installing this integrated electrical connecting plate, once the connecting plate body is positioned relative to the module battery using the stopper, all connecting tabs are positioned relative to the battery posts. This eliminates the need for additional tooling to position the connecting plate body, making battery module assembly more convenient and quick.

[0050] In this embodiment, the limiting feature is a lower protective flange 12 that surrounds the lower edge of the connecting plate body 1. The inner wall of the lower protective flange 12 nests with the exterior of the battery module. When installing the integrated electrical connecting plate, the lower protective flange cooperates with the exterior of the battery module to limit the connecting plate body. This eliminates the need to manually hold the connecting plate body when tightening screws, and the torque generated by the torque gun does not cause the connecting piece and the connecting plate body to rotate.

[0051] In this embodiment, an upper protective ridge 14 is provided around the edges of the upper side of the connecting plate body 1 to protect the flexible circuit board 3. To facilitate installation of the flexible circuit board 3, the upper protective ridge 14 is notched on both sides of the connecting plate body 1 along its length, making the upper protective ridge discontinuous.

[0052] In this embodiment, the connecting piece 2 is stamped from sheet metal and is entirely nickel-plated to enhance corrosion resistance and electrical conductivity. After the connecting piece is integrated with the connecting plate body through injection molding, the central portion of the connecting piece is positioned above the connecting plate body. Preferably, the central portion of the connecting piece is partially embedded within the connecting plate body, with the upper surface of the central portion slightly protruding above the upper surface of the connecting plate body to facilitate overlapping contact between the nickel sheet on the flexible printed circuit board and the central portion of the connecting piece for subsequent welding and electrical connection.

[0053] In this embodiment, a plurality of through-riveted holes 15 are evenly provided on the connecting plate body 1 so that the connecting plate body and the module battery can be riveted and fixed through the riveted holes, thereby enhancing the connection force between the integrated electrical connecting plate and the module battery and preventing the connecting plate body from being subjected to an upward pulling force, causing the connecting piece to be greatly deformed and affecting the electrical contact with the pole.

[0054] In this embodiment, the connecting plate body 1 is also uniformly provided with several explosion-proof through-holes 16 extending through it to avoid obstructing the explosion-proof valve on top of the battery. This could hinder the valve's opening, preventing the high-temperature medium from being ejected in a timely manner, leading to a continuous increase in internal battery pressure and, in turn, battery explosion. Continuous protrusions are provided on the upper and lower edges of the explosion-proof through-holes 16, providing protection for the through-holes and strengthening the structural strength of the connecting plate body. These protrusions also act as drainage channels, ensuring that the high-temperature medium is ejected in a targeted manner, preventing it from spreading to other batteries and potentially causing thermal runaway of the entire module.

[0055] Example 2

[0056] like Figure 5-Figure 7As shown, this embodiment provides a battery module, including several batteries and the integrated electrical connection plate A described in Example 1, all the batteries are arranged in a row, and an intermediate layer plate 7 for wrapping the two battery parts is provided between adjacent batteries. The integrated electrical connection plate A is buckled on the battery pack so that the lower protective flange 12 around the lower side of the connection plate body 1 is nested with the intermediate layer plate 7, and screws 8 are sequentially inserted into the connection through hole 11 on the connection plate body 1 and the mounting hole 22 in the center of the electrical connection part 21 on the connecting plate 2, and then connected with the threaded hole at the top of the battery pole 4, so that the electrical connection part 21 on the connecting plate 2 is in contact with the top surface of the battery pole 4 for electrical connection, and the intermediate layer plate 7 is riveted to the riveting through hole 15 on the connection plate body 1 by nylon rivets. It also includes two module end plates 5 and two module pull plates 6, and the module end plates 5 are respectively arranged on the two outermost battery sides, and the module pull plates 6 are respectively arranged on both sides of the module end plate 5.

[0057] The battery module includes several batteries and an integrated electrical connection plate. All the batteries are arranged in a row. An intermediate layer plate for wrapping the two battery parts is provided between adjacent batteries. Module end plates are arranged oppositely at both ends of the batteries arranged in a row, and the module pull plates on both sides are used to make the batteries close together. The integrated electrical connection plate is buckled onto the battery, and the electrical connection part on the connecting plate is crimped to the top of the battery pole with screws, and the connecting plate body is riveted to the intermediate layer plate with nylon rivets. When assembling the battery module, the electrical connection operation is simple and the connection efficiency is high, which is conducive to the automated assembly of the battery module.

[0058] In this embodiment, the intermediate plate 7 is in the shape of a square. The inner wall of the intermediate plate 7 is provided with a partition plate 72 with a certain protruding height. During assembly, the large surfaces of two adjacent batteries are respectively attached to the two sides of the partition plate 72, and the remaining surfaces of the batteries are attached to the inner wall of the intermediate plate 7, so that the intermediate plate can be used to limit the assembly of the two adjacent batteries. The top and left sides of the intermediate plate 7 are also provided with a number of notches to avoid the poles and explosion-proof valves of the two adjacent batteries. The top surface of the intermediate plate 7 is also evenly provided with three connecting cones 71, and the center of each connecting cone 71 is provided with a rivet hole. During assembly, the rivet through-holes 15 on the connecting plate body 1 are riveted to the rivet holes of the connecting cone 71 at the top of the intermediate plate 7 using nylon rivets, thereby achieving the fixation of the entire integrated electrical connection plate.

[0059] It should be noted that the structure of the intermediate layer used to wrap the two outermost batteries is different. These two intermediate layers are equivalent to only half of a normal intermediate layer, that is, the intermediate layer is divided into two halves from the center of the partition plate. In addition, output connecting pieces are provided on the positive and negative output poles of the battery module, and the two output connecting pieces are located on both sides of the length direction of the module. In order to make the integrated electrical connection plate have a higher degree of integration, the two output connecting pieces can also be integrated into the connection plate body. Among them, one end of the output connecting piece is integrated into the connection plate body in the same way, and is electrically connected to the output battery pole by screws, while the other end of the output connecting piece extends outside the connection plate body, and is bent and fixed to the module end plate. At the same time, the nickel sheet on the flexible circuit board must also be overlapped with the output connecting piece and then welded.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An integrated electrical connection board, characterized in that: It includes a connecting plate body and several connecting pieces, the connecting plate body is an injection-molded part, the connecting pieces are integrated with the connecting plate body, and the connecting pieces on the connecting plate body are arranged correspondingly to the combined structure of the battery module; Each of the connecting pieces includes two electrical connection portions, and the connecting piece between the two electrical connection portions forms an arched portion; the electrical connection portion is located on the lower side of the connecting plate body and is used to contact the battery pole; the arched portion is embedded in the connecting plate body, the middle portion of the arched portion is located on the upper side of the connecting plate body, and the upper surface of the middle portion of the arched portion protrudes from the upper surface of the connecting plate body; The electrical connection part includes an electrical connection part body, a protrusion and a buffer part. The electrical connection part body is fixedly connected to the connecting plate body; the protrusion is arranged on the inner periphery of the electrical connection part body and protrudes from the surface of the electrical connection part body, and the protrusion is used to contact the battery pole; the buffer part is arranged around the outer periphery of the protrusion and is connected between the electrical connection part body and the protrusion, and the buffer part is arranged at an angle relative to the surface of the electrical connection part body.

2. The integrated electrical connection plate according to claim 1, characterized in that: Each of the electrical connection parts is provided with a mounting hole for mounting a connector, and the connecting plate body is provided with a connecting through hole corresponding to the mounting hole.

3. The integrated electrical connection plate according to claim 1, characterized in that: The connecting piece is provided with a plurality of attachment holes.

4. The integrated electrical connection plate according to any one of claims 1 to 3, characterized in that: A flexible circuit board is provided on the connecting plate body, and a plurality of nickel sheets are provided on the flexible circuit board for connecting with the connecting sheets.

5. The integrated electrical connection plate according to claim 1, characterized in that: A protective convex ring is provided on the connecting plate body at the edge of the connecting through hole, and the top surface height of the protective convex ring is higher than the top height of the connecting piece placed in the connecting through hole.

6. The integrated electrical connection plate according to any one of claims 1 to 3, characterized in that: A limiting portion is further provided on the connecting plate body, and the limiting portion is used to limit the position of the connecting plate body relative to the module battery.

7. The integrated electrical connection plate according to claim 6, characterized in that: The limiting portion is a lower protective convex edge arranged around the edges of the lower side of the connecting plate body, and the inner wall of the lower protective convex edge is nested with the outside of the module battery.

8. A battery module, characterized in that: It comprises a plurality of batteries arranged in a row and the integrated electrical connection plate according to any one of claims 1 to 7, which is positioned and connected to the battery pack through the connection plate body, and the connection piece is in contact with the battery pole to form an electrical connection.

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