Integrated busbar for blade battery

Abstract

The utility model relates to the technical field of battery packs, in particular to an integrated busbar for a blade battery, which comprises a wire harness isolation plate, an aluminum bar mounting position and a flexible circuit board mounting position are arranged on the wire harness isolation plate, a plurality of aluminum bars are mounted on the aluminum bar mounting position, a flexible circuit board is mounted on the flexible circuit board mounting position, and the flexible circuit board is mounted on the aluminum bar mounting position. A connector is arranged at one end of the flexible circuit board; one side, adjacent to the aluminum bar installation position, of the flexible circuit board is provided with nickel sheets corresponding to the aluminum bars in number, and the nickel sheets are connected with the aluminum bars. The aluminum bar and the flexible circuit board with the connector are installed through the wire harness isolation plate, the structure is simple, flat cables in the battery pack are more concise, dependence on manual assembly is small, and the efficiency of automatic assembly can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery packs, and in particular to an integrated busbar for blade batteries. Background Art

[0002] New energy vehicles (NEVs) have garnered widespread attention from all sectors of society due to their excellent environmental performance. Expectations for these vehicles are constantly increasing. As a new energy vehicle, electric vehicles are also developing towards enhanced safety, high energy efficiency, and lightweight design. The primary factor determining an EV's range is its battery. Different battery specifications can be selected for different vehicle models to meet driving requirements.

[0003] Batteries used in electric vehicles are typically built into a battery pack consisting of multiple cell modules. This means that multiple modules are stacked together in a single box and then connected together. The core cell module typically has a specific number of cells configured based on the required output voltage, and all cells are then connected together for voltage output.

[0004] In the blade battery cell, the positive and negative poles are arranged on both sides, and wiring harnesses are often used to collect voltage. Traditional wiring harness collection requires the coordination of multiple wiring harnesses, which not only takes up a large space in the battery pack, but also relies heavily on manual labor when making electrical connections, and the degree of automation is extremely low.

[0005] Therefore, a new technical solution is urgently needed to solve the above technical problems. Utility Model Content

[0006] The purpose of the present utility model is to overcome the problems of the above-mentioned prior art and provide an integrated busbar for blade batteries, which is used to solve the technical problems that traditional wiring harnesses for collecting battery cells require multiple wiring harnesses to cooperate, which not only takes up a large space in the battery pack, but also relies heavily on manual labor when making electrical connections and has an extremely low degree of automation.

[0007] The above objectives are achieved through the following technical solutions:

[0008] An integrated busbar for a blade battery includes a wiring harness isolation plate, on which are provided an aluminum bar mounting position and a flexible circuit board mounting position. A plurality of aluminum bars are mounted on the aluminum bar mounting position, and a flexible circuit board is mounted on the flexible circuit board mounting position. A connector is provided at one end of the flexible circuit board. A number of nickel sheets corresponding to the number of aluminum bars are provided on one side of the flexible circuit board adjacent to the aluminum bar mounting position, and the nickel sheets are connected to the aluminum bars.

[0009] Furthermore, a plurality of aluminum bar embedding grooves are provided on the aluminum bar mounting position for installing the aluminum bar; and a flexible circuit board embedding groove is provided on the flexible circuit board mounting position for installing the flexible circuit board.

[0010] Furthermore, a plurality of explosion-proof holes are provided in the flexible circuit board embedding groove.

[0011] Furthermore, the number of the explosion-proof holes corresponds to the number of battery cells.

[0012] Furthermore, the aluminum bar includes a symmetrically arranged left aluminum bar and a right aluminum bar, and a curved buffer groove is provided between the left aluminum bar and the right aluminum bar; the aluminum bar embedding groove includes a left aluminum bar groove and a right aluminum bar groove, and a buffer groove support plate is provided between the left aluminum bar groove and the right aluminum bar groove.

[0013] Furthermore, screw holes capable of being screwed to the positive and negative poles of the battery cell are respectively provided on the left aluminum bar and the right aluminum bar.

[0014] Furthermore, both ends of the buffer groove support plate are respectively provided with heat rivet studs, and the curved buffer groove is provided with heat rivet holes capable of sleeved with the heat rivet studs.

[0015] Furthermore, the nickel sheet is welded to the left aluminum bar or the right aluminum bar.

[0016] Furthermore, a circuit board through groove is provided on the flexible circuit board at a position adjacent to the nickel sheet.

[0017] Furthermore, the wiring harness isolation plate is made of insulating material.

[0018] The utility model provides an integrated busbar for blade batteries. Using a wire harness isolation plate to mount an aluminum busbar and a flexible circuit board with connectors, this design not only simplifies the structure but also streamlines the wiring within the battery pack, minimizing reliance on manual assembly and effectively improving automated assembly efficiency. Furthermore, by providing explosion-proof holes in the wire harness isolation plate, bending buffer grooves in the aluminum busbar, and circuit board slots in the flexible circuit board, the integrated busbar assembly is more resistant to battery cell expansion, ensuring uninterrupted cell testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of an integrated busbar for a blade battery according to the present invention from a first perspective;

[0020] Figure 2 This is a schematic structural diagram of an integrated busbar for a blade battery according to the present invention from a second perspective;

[0021] Figure 3 This is a schematic diagram of the assembly of the aluminum busbar and the wiring harness isolation plate in the integrated busbar for the blade battery described in the present invention;

[0022] Figure 4This is a schematic structural diagram of a flexible circuit board in an integrated busbar for a blade battery according to the present invention;

[0023] Figure 5 This is a schematic structural diagram of the aluminum busbar in the integrated busbar for the blade battery described in the present invention.

[0024] Graphic mark:

[0025] 1-Wire harness isolation plate, 101-Aluminum bar mounting position, 102-Flexible circuit board mounting position, 103-Aluminum bar embedding groove, 104-Flexible circuit board embedding groove, 105-Explosion-proof hole, 106-Aluminum bar through groove, 107-Right aluminum bar through groove, 108-Buffer slot support plate, 109-Screw hole, 110-Heat riveting stud;

[0026] 2-aluminum bar, 201-left aluminum bar, 202-right aluminum bar, 203-bending buffer groove, 204-hot rivet hole;

[0027] 3-flexible circuit board, 301-circuit board slot;

[0028] 4- Connector;

[0029] 5-Nickel sheet. DETAILED DESCRIPTION

[0030] The present invention is further described below with reference to the accompanying drawings and examples. The described embodiments are only a portion of the embodiments of the present invention, and are not intended to be exhaustive. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0031] like Figure 1 and Figure 2 As shown, the present solution provides an integrated busbar for a blade battery, comprising a wiring harness isolation plate 1, on which an aluminum bar mounting position 101 and a flexible circuit board mounting position 102 are provided, a plurality of aluminum bars 2 are installed on the aluminum bar mounting position 101, a flexible circuit board 3 is installed on the flexible circuit board mounting position 102, and a connector 4 is provided at one end of the flexible circuit board 3; a side of the flexible circuit board 3 adjacent to the aluminum bar mounting position 101 is provided with nickel sheets 5 corresponding in number to the aluminum bars 2, and the nickel sheets 5 are connected to the aluminum bars 2.

[0032] The wiring harness isolation plate 1 described in this embodiment is used to be set on one side of the battery module with the positive and negative connection ends, electrically connect the individual battery cells through the aluminum bar 2, and collect the voltage or current data of each battery cell through the flexible circuit board 3 via the nickel sheet 5, and finally connect to the external battery management system through the connector 4 to realize data collection and transmission.

[0033] It should be noted that the specific circuit structure of the flexible circuit board 3 involved in this solution adopts the well-known technology in the field, so it will not be described in detail. It is only used as a component to realize the connection with the battery cell, thereby saving space while realizing quick connection of the battery cell.

[0034] The wiring harness isolation plate 1 is made of insulating material, such as plastic.

[0035] like Figure 2 and Figure 3 As shown, in this embodiment, the aluminum bar mounting position 101 is provided with a plurality of aluminum bar embedding grooves 103 for installing the aluminum bar 2; the flexible circuit board mounting position 102 is provided with a flexible circuit board embedding groove 104 for installing the flexible circuit board 3.

[0036] The flexible circuit board embedding groove 104 is further provided with a plurality of explosion-proof holes 105 to prevent the internal pressure of the battery cell from being too high and causing an explosion, while ensuring that the gas can be discharged in time to ensure the safety of the battery.

[0037] The number of the explosion-proof holes 105 corresponds to the number of battery cells, so as to ensure that each battery cell has an explosion-proof hole 105 so that gas can be discharged in time when a fault occurs.

[0038] like Figure 5 As shown, the aluminum bar 2 in this embodiment includes a left aluminum bar 201 and a right aluminum bar 202 that are symmetrically arranged, and a bending buffer groove 203 is provided between the left aluminum bar 201 and the right aluminum bar 202;

[0039] The aluminum bar embedding groove 103 includes a left aluminum bar groove 106 and a right aluminum bar groove 107, and a buffer groove support plate 108 is provided between the left aluminum bar groove 106 and the right aluminum bar groove 107;

[0040] When the aluminum bar 2 is installed with the aluminum bar slot 103, the bent buffer slot 203 is directly aligned and falls on the buffer slot support plate 108, so that the aluminum bar 2 can be quickly assembled; at this time, the left aluminum bar 201 corresponds to the left aluminum bar slot 106, and the right aluminum bar 202 corresponds to the right aluminum bar slot 107.

[0041] When assembled with the battery cell module, the left aluminum bar groove 106 and the right aluminum bar groove 107 are both used for the insertion of the positive and negative connection terminals on the battery cell, thereby facilitating quick contact and connection with the aluminum bar 2.

[0042] like Figure 2 、 Figure 3 and Figure 5As shown, the left aluminum bar 201 and the right aluminum bar 202 are respectively provided with screw holes 109 that can be screwed to the positive and negative electrodes of the battery cell, so as to achieve rapid electrode connection through screws.

[0043] A hot rivet column 110 is provided at both ends of the buffer groove support plate 108, and a hot rivet hole 204 is opened on the curved buffer groove 203 to fit the hot rivet column 110. After the hot rivet hole 204 fits the hot rivet column 110, the hot rivet column 110 is riveted at high temperature to ensure that the aluminum bar 2 is firmly installed in the aluminum bar embedding groove 103.

[0044] It should be noted that, in this embodiment, the nickel sheet 5 is welded to the left aluminum bar 201 or the right aluminum bar 202 .

[0045] Specifically, due to the curved buffer groove 203, the height of its corresponding part is higher than the height of the left aluminum bar 201 and the right aluminum bar 202 which are horizontal to each other. The left aluminum bar 201 or the right aluminum bar 202 is mainly used to connect with the electrodes of the battery cell. It has a flat surface, and welding the nickel sheet 5 to its surface is not likely to cause breakage at the welding point between the nickel sheet 5 and the aluminum bar 2 during use.

[0046] like Figure 4 As shown, in this embodiment, a circuit board through groove 301 is opened on the flexible circuit board 3 adjacent to the nickel sheet 5. This structure can be torn after the battery cell expands, thereby preventing the nickel sheet 5 from being torn due to stress and causing failure of the integrated busbar.

[0047] The above description is only for explaining the implementation mode of the present invention and is not intended to limit the present invention. For those skilled in the art, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An integrated busbar for blade batteries, characterized in that: The invention comprises a wiring harness isolation plate (1), wherein an aluminum bar mounting position (101) and a flexible circuit board mounting position (102) are provided on the wiring harness isolation plate (1), a plurality of aluminum bars (2) are installed on the aluminum bar mounting position (101), a flexible circuit board (3) is installed on the flexible circuit board mounting position (102), and a connector (4) is provided at one end of the flexible circuit board (3); and nickel sheets (5) corresponding in number to the aluminum bars (2) are provided on one side of the flexible circuit board (3) adjacent to the aluminum bar mounting position (101), and the nickel sheets (5) are connected to the aluminum bars (2).

2. The integrated busbar for blade batteries according to claim 1, characterized in that: The aluminum bar mounting position (101) is provided with a plurality of aluminum bar embedding grooves (103) for mounting the aluminum bar (2); and the flexible circuit board mounting position (102) is provided with flexible circuit board embedding grooves (104) for mounting the flexible circuit board (3).

3. The integrated busbar for blade batteries according to claim 2, characterized in that: A plurality of explosion-proof holes (105) are also provided in the flexible circuit board embedding groove (104).

4. The integrated busbar for blade batteries according to claim 3, characterized in that: The number of the explosion-proof holes (105) corresponds to the number of battery cells.

5. The integrated busbar for blade batteries according to claim 2, characterized in that: The aluminum bar (2) comprises a symmetrically arranged left aluminum bar (201) and a right aluminum bar (202), and a bending buffer groove (203) is provided between the left aluminum bar (201) and the right aluminum bar (202); The aluminum bar embedding groove (103) comprises a left aluminum bar groove (106) and a right aluminum bar groove (107), and a buffer groove support plate (108) is provided between the left aluminum bar groove (106) and the right aluminum bar groove (107).

6. The integrated busbar for blade batteries according to claim 5, characterized in that: The left aluminum bar (201) and the right aluminum bar (202) are respectively provided with screw holes (109) capable of being screwed to the positive and negative electrodes of the battery cell.

7. The integrated busbar for blade batteries according to claim 5, characterized in that: Both ends of the buffer groove support plate (108) are respectively provided with heat riveting columns (110), and the bending buffer groove (203) is provided with heat riveting holes (204) capable of sleeve-mounting the heat riveting columns (110).

8. The integrated busbar for blade batteries according to claim 5, characterized in that: The nickel sheet (5) is welded to the left aluminum bar (201) or the right aluminum bar (202).

9. The integrated busbar for blade batteries according to claim 1, characterized in that: A circuit board through slot (301) is provided on the flexible circuit board (3) at a position adjacent to the nickel sheet (5).

10. The integrated busbar for blade batteries according to claim 1, characterized in that: The wiring harness isolation plate (1) is made of insulating material.

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