Integrated busbar assembly

Abstract

The utility model provides an integrated busbar assembly, and belongs to the field of new energy batteries. The assembly comprises a first assembly and a second assembly, each of the first assembly and the second assembly comprises a supporting plate, a flexible circuit board and an aluminum bar, the flexible circuit board and the aluminum bar are arranged on the supporting plate, the supporting plate and the flexible circuit board are of a long-strip-shaped structure, and the flexible circuit board is arranged in the length direction of the supporting plate; the aluminum bar is arranged on one side of the flexible circuit board and connected with the flexible circuit board, the first assembly and the second assembly are arranged along the same straight line, one end of the first assembly is provided with a plug-in male head, one end, close to the first assembly, of the second assembly is provided with a plug-in female head matched with the plug-in male head, and the plug-in male head and the plug-in female head are connected with the flexible circuit board. By adopting the integrated busbar assembly provided by the embodiment of the utility model, the problem that the assembly with the battery module is difficult due to overlong length in the prior art can be solved.

Description

Technical Field

[0001] The utility model relates to the field of new energy batteries, and particularly to an integrated busbar assembly. Background Art

[0002] CCS (Cells Contact System), also known as an integrated busbar, is a physical carrier for the transmission of a new type of battery management system (BMS). The integrated busbar assembly is widely used in the field of new energy vehicles, especially in electric vehicles and energy storage systems. It optimizes the current distribution of the battery pack, improves the performance and safety of the battery, thereby extending the service life of the battery. In addition, the integrated busbar assembly can also reduce the assembly cost, improve the assembly efficiency, and provide support for the long driving range of electric vehicles and the stability of the power system.

[0003] With the increasing requirements for low cost and high power in the field of new energy batteries, the length of the integrated busbar assembly also increases accordingly. The integrated busbar assembly in the prior art is usually arranged on a long strip-shaped support plate. As the length of the integrated busbar assembly increases, the length of the support plate also increases accordingly.

[0004] For the integrated busbar assembly in the prior art, since it is made of a whole support plate, when the length of the integrated busbar assembly is relatively long, its manufacturing cost increases significantly. At the same time, due to the excessive length of the integrated busbar assembly, when installing it with the battery module, it is easy to have misalignment, and it is easy to break, resulting in difficult assembly with the battery module. Summary of the Utility Model

[0005] The embodiment of the utility model provides an integrated busbar assembly, which can solve the problem of difficult assembly with the battery module caused by excessive length in the prior art. The technical solution is as follows:

[0006] An integrated busbar assembly includes a first component and a second component.

[0007] Both the first component and the second component include a support plate, a flexible circuit board, and an aluminum bar. The flexible circuit board and the aluminum bar are arranged on the support plate. The support plate and the flexible circuit board are in a long strip-shaped structure. The flexible circuit board is arranged along the length direction of the support plate. The aluminum bar is arranged on one side of the flexible circuit board and is connected to the flexible circuit board.

[0008] The first component and the second component are arranged along the same straight line. A male plug is arranged at one end of the first component. A female plug matching the male plug is arranged at one end of the second component close to the first component. The male plug and the female plug are connected to the flexible circuit board.

[0009] Optionally, a separation hole is formed in the middle of the flexible circuit board. The separation hole is strip-shaped and is consistent with the length direction of the flexible circuit board. The aluminum bars are distributed on both sides of the separation hole.

[0010] Optionally, an explosion-proof valve connection hole matching the separation hole is formed in the support plate.

[0011] Optionally, a plurality of explosion-proof valve connection holes are provided, and the plurality of explosion-proof valve connection holes are arranged along the length direction of the separation hole.

[0012] Optionally, an aluminum bar mounting groove matching the aluminum bar is formed in the support plate.

[0013] Optionally, a connection circuit board is further included. The male plug and the female plug are connected to the flexible circuit board through the connection circuit board.

[0014] Optionally, a jumper aluminum bar is arranged between the first component and the second component. The jumper aluminum bar is connected to the aluminum bars on the first component and the second component.

[0015] Optionally, a reinforcing plate is further included. The reinforcing plate is arranged at the mating part of the male plug and the female plug.

[0016] The beneficial effects brought by the technical solution provided by the embodiment of the present invention at least include:

[0017] An integrated busbar assembly provided by an embodiment of the present invention divides the integrated busbar assembly into a first component and a second component, and connects them through the male plug and the female plug thereon, so that the longer integrated busbar assembly is divided into two shorter components for connection and assembly. Thereby, the manufacturing cost of a single integrated busbar assembly can be reduced, and the assembly of the integrated busbar assembly with the battery module is also facilitated. During assembly, the aluminum bars on the first component and the second component can be assembled with the battery module respectively, and then the first component and the second component are assembled together through the male plug and the female plug, reducing the situation that it is difficult to assemble or break due to the excessive length of a single integrated busbar assembly during the assembly process, and effectively solving the problem of difficult assembly with the battery module caused by excessive length in the prior art. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1It is a schematic diagram of the overall structure of the integrated busbar assembly provided by an embodiment of the present utility model;

[0020] Figure 2 is provided by an embodiment of the present utility model Figure 1 Schematic cross-sectional structure diagram of the support plate in the A-A direction in

[0021] Figure 3 is a schematic diagram of the cooperation between the male plug and the female plug provided by an embodiment of the present utility model;

[0022] Figure 4 is a schematic diagram of the bottom structures of the male plug and the female plug provided by an embodiment of the present utility model.

[0023] In the figure: 1 - First component; 11 - Male plug; 2 - Second component; 21 - Female plug; 3 - Support plate; 31 - Explosion-proof valve connection hole; 32 - Aluminum bar installation groove; 4 - Flexible circuit board; 41 - Separation hole; 42 - Connecting circuit board; 5 - Aluminum bar; 6 - Jumper aluminum bar; 7 - Reinforcing plate. Detailed implementation manners

[0024] To make the objectives, technical solutions and advantages of the present utility model clearer, the embodiments of the present utility model will be further described in detail below in conjunction with the accompanying drawings.

[0025] Figure 1 It is a schematic diagram of the overall structure of the integrated busbar assembly provided by an embodiment of the present utility model; Figure 2 is provided by an embodiment of the present utility model Figure 1 Schematic cross-sectional structure diagram of the support plate in the A-A direction in Figure 3 is a schematic diagram of the cooperation between the male plug and the female plug provided by an embodiment of the present utility model; Figure 4 is a schematic diagram of the bottom structures of the male plug and the female plug provided by an embodiment of the present utility model. As Figures 1 to 4 shown, an integrated busbar assembly includes a first component 1 and a second component 2. Both the first component 1 and the second component 2 include a support plate 3, a flexible circuit board 4, and an aluminum bar 5. The flexible circuit board 4 and the aluminum bar 5 are arranged on the support plate 3. The support plate 3 and the flexible circuit board 4 are in a long strip structure. The flexible circuit board 4 is arranged along the length direction of the support plate 3. The aluminum bar 5 is arranged on one side of the flexible circuit board 4 and is connected to the flexible circuit board 4. The first component 1 and the second component 2 are arranged along the same straight line. One end of the first component 1 is provided with a male plug 11, and one end of the second component 2 close to the first component 1 is provided with a female plug 21 that matches the male plug 11. The male plug 11 and the female plug 21 are connected to the flexible circuit board 4.

[0026] Exemplarily, in the embodiment of the present utility model, when assembling the integrated busbar assembly and the battery module, the integrated busbar assembly is arranged on the top of the battery module, and the integrated busbar assembly is connected to the electrodes of the battery module through the aluminum bar 5. During assembly, the first component 1 and the second component 2 are respectively assembled with the battery module. After the assembly is completed, the first component 1 and the second component 2 carrying the battery module are plugged together through the male plug 11 and the female plug 21 to complete the assembly of the circuit. Using two separate first components 1 and second components 2 to form the integrated busbar assembly, when assembling with the battery module, the assembly reference changes from one to two, effectively improving the assembly accuracy. When manufacturing the first component 1 and the second component 2, compared with directly manufacturing a complete integrated busbar assembly, the difficulty of the production process is greatly reduced, and the production cost is also reduced.

[0027] An integrated busbar assembly provided by an embodiment of the present utility model divides the integrated busbar assembly into a first component 1 and a second component 2, and connects them through the male plug 11 and the female plug 12 thereon, so that the relatively long integrated busbar assembly is divided into two relatively short components for connection and assembly, thereby reducing the manufacturing cost of a single integrated busbar assembly and facilitating the assembly of the integrated busbar assembly and the battery module. During assembly, the aluminum bars 5 on the first component 1 and the second component 2 can be respectively assembled with the battery module, and then the first component 1 and the second component 2 are assembled together through the male plug 11 and the female plug 12, reducing the situation that it is difficult to assemble or break due to the excessive length of a single integrated busbar assembly during the assembly process, and effectively solving the problem of difficult assembly with the battery module due to excessive length in the prior art.

[0028] Optionally, a separation hole 41 is formed in the middle of the flexible circuit board 4. The separation hole 41 is in a long strip shape and is consistent with the length direction of the flexible circuit board 4. The aluminum bars 5 are distributed on both sides of the separation hole 41.

[0029] Exemplarily, in the embodiment of the present utility model, by providing the separation hole 41, aluminum bars 5 can be arranged on both sides of the separation hole 41, which can make more efficient use of the space on the support plate 3, so that more battery modules can be connected to the aluminum bars on the support plate 3, thereby increasing the total battery capacity of the battery structure after the integrated busbar assembly and the battery module are assembled.

[0030] Optionally, an explosion-proof valve connection hole 31 matching the separation hole 41 is formed on the support plate 3.

[0031] Exemplarily, in the embodiment of the present utility model, by providing an explosion-proof valve connection hole 31 on the support plate 3, when assembling the integrated busbar assembly with the battery module, the explosion-proof valve connection hole 31 can be aligned with the explosion-proof valve of the battery module. When an abnormality occurs inside the battery module and the explosion-proof valve is activated, the air pressure discharged from the explosion-proof valve can rush out through the explosion-proof valve connection hole 31, thereby preventing the integrated busbar assembly from being secondarily impacted and damaged when the explosion-proof valve is activated, and improving the practicality of the integrated busbar assembly in this way.

[0032] Optionally, a plurality of explosion-proof valve connection holes 31 are provided, and the plurality of explosion-proof valve connection holes 31 are arranged along the length direction of the partition hole 41.

[0033] Exemplarily, in the embodiment of the present utility model, a plurality of battery modules are arranged along the length direction of the flexible circuit board 4. By providing a plurality of explosion-proof valve connection holes 31 corresponding to the explosion-proof valves of the plurality of battery modules, when each explosion-proof valve is activated, the air pressure can be discharged from the explosion-proof valve connection hole 31, thereby preventing the integrated busbar assembly from being secondarily impacted and damaged when the explosion-proof valve is activated, and further improving the practicality of the integrated busbar assembly in this way.

[0034] Optionally, an aluminum bar installation groove 32 matching the aluminum bar 5 is provided on the support plate 3.

[0035] Exemplarily, in the embodiment of the present utility model, by providing the aluminum bar installation groove 32 on the support plate 3, when installing the aluminum bar 5 on the support plate 3, the aluminum bar 5 can be limited by being arranged in the aluminum bar installation groove 32, so that the aluminum bar 5 is more firmly connected to the support plate 3, and the stability of the integrated busbar assembly is improved in this way.

[0036] Optionally, it further includes a connection circuit board 42. The male plug 11 and the female plug 21 are connected to the flexible circuit board 4 through the connection circuit board 42.

[0037] Exemplarily, in the embodiment of the present utility model, a connection circuit board 42 is provided at one end of the flexible circuit board 4 on the first component 1 and the flexible circuit board 4 on the second component 2 that are close to each other. By providing the connection circuit board 42, the distance between the first component 1 and the second component 2 can be adjusted. When connecting to battery modules with different structures, the first component 1 and the second component 2 can be connected by providing connection circuit boards 42 with different lengths, so as to adjust the distance between the battery modules below the first component 1 and the second component 2, thereby meeting different usage scenarios and improving the versatility of the integrated busbar assembly.

[0038] Optionally, a jumper aluminum bar 6 is provided between the first component 1 and the second component 2, and the jumper aluminum bar 6 is connected to the aluminum bars 5 on the first component 1 and the second component 2.

[0039] Exemplarily, in the embodiment of the present utility model, after the connection circuit board 42 is provided, the distance between the first component 1 and the second component 2 is increased. In order to maintain the connectivity between multiple battery modules, a bridging aluminum bar 6 is disposed across between the first component 1 and the second component 2. And by providing the bridging aluminum bar 6, the connection strength between the first component 1 and the second component 2 can be enhanced, thereby further improving the stability of the present integrated busbar assembly.

[0040] Optionally, it further includes a reinforcing plate 7, and the reinforcing plate 7 is disposed at the mating portion of the male plug 11 and the female plug 12.

[0041] Exemplarily, in the embodiment of the present utility model, after the male plug 11 and the female plug 12 are plugged and mated, looseness may occur. By providing the reinforcing plate 7 at the mating portion of the male plug 11 and the female plug 12, and welding one end of the reinforcing plate 7 to the male plug 11 and welding the other end of the reinforcing plate 7 to the female plug 12, the connection between the male plug 11 and the female plug 12 is strengthened, increasing the connection strength between the male plug 11 and the female plug 12, thereby further improving the stability of the present integrated busbar assembly.

[0042] Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meanings understood by those of ordinary skill in the field to which the present utility model belongs. The "first", "second" and similar terms used in the specification and claims of the present utility model patent application do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, the terms such as "a" or "one" do not denote a quantity limitation, but mean that there is at least one. The terms such as "comprising" or "including" mean that the elements or objects appearing before "comprising" or "including" cover the elements or objects listed after "comprising" or "including" and their equivalents, and do not exclude other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative position relationships, and when the absolute position of the object being described changes, the relative position relationships may also change accordingly.

[0043] The above are only optional embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An integrated busbar assembly, characterized in that, Comprising a first component (1) and a second component (2), Both the first component (1) and the second component (2) include a support plate (3), a flexible circuit board (4), and an aluminum bar (5). The flexible circuit board (4) and the aluminum bar (5) are disposed on the support plate (3). The support plate (3) and the flexible circuit board (4) are in a long strip structure. The flexible circuit board (4) is arranged along the length direction of the support plate (3). The aluminum bar (5) is disposed on one side of the flexible circuit board (4) and connected to the flexible circuit board (4). The first component (1) and the second component (2) are arranged along the same straight line. One end of the first component (1) is provided with a male plug (11), and one end of the second component (2) close to the first component (1) is provided with a female plug (21) that matches the male plug (11). The male plug (11) and the female plug (21) are connected to the flexible circuit board (4).

2. The integrated busbar assembly according to claim 1, wherein A separation hole (41) is formed in the middle of the flexible circuit board (4). The separation hole (41) is in a long strip shape and is consistent with the length direction of the flexible circuit board (4). The aluminum bars (5) are distributed on both sides of the separation hole (41).

3. The integrated busbar assembly according to claim 2, wherein, An explosion-proof valve connection hole (31) that matches the separation hole (41) is formed in the support plate (3).

4. The integrated busbar assembly according to claim 3, characterized in that, A plurality of the explosion-proof valve connection holes (31) are provided, and the plurality of explosion-proof valve connection holes (31) are arranged along the length direction of the separation hole (41).

5. The integrated busbar assembly according to claim 1, wherein, An aluminum bar installation groove (32) that matches the aluminum bar (5) is formed in the support plate (3).

6. The integrated busbar assembly according to claim 1, characterized in that, Also included is a connection circuit board (42). The male plug (11) and the female plug (21) are connected to the flexible circuit board (4) through the connection circuit board (42).

7. The integrated busbar assembly according to claim 6, wherein A bridging aluminum bar (6) is provided between the first component (1) and the second component (2). The bridging aluminum bar (6) is connected to the aluminum bars (5) on the first component (1) and the second component (2).

8. The integrated busbar assembly according to claim 1, characterized in that, Also included is a reinforcement plate (7). The reinforcement plate (7) is disposed at the mating portion of the male plug (11) and the female plug (21).

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