Lithium battery module integrated busbar

Abstract

The utility model discloses a lithium battery module integrated busbar which comprises a module body, a busbar body fixedly connected to the front side wall of the module body and two aluminum bars fixedly installed on the front side wall of the busbar body, the two aluminum bars are distributed on the edges of the two sides of the module body, and copper sheets are connected to the aluminum bars through fastening assemblies. The fastening assembly comprises two bolts, a gasket and a nut, the nut is fixed to the aluminum sheet, the aluminum sheet is provided with a second through hole corresponding to the nut in position, the copper sheet is provided with a third through hole, and the bolts sequentially penetrate through the third through hole, the gasket, the second through hole and the nut. According to the utility model, the integrated busbar can be suitable for side placement of the module, so that the design of the battery pack in the width direction can reduce a certain space, and larger or more parts can be placed in the battery pack according to the requirements of customers or themselves, so that the weight of the whole module can be reduced, and a certain cost reduction requirement can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery modules, and specifically relates to an integrated busbar for a lithium battery module. Background Technique

[0002] The integrated busbar is a necessary component device in the lithium battery module. In recent years, the new energy industry has become increasingly hot. The integrated busbar, which is an important part of new energy vehicles, is also an indispensable part. Currently, the integrated busbars produced by suppliers on the market are suitable for the module to be placed upright. In this way, the module produced will occupy a certain space in the width direction of the battery pack, resulting in redundant design of the battery pack, too small placement positions for other components in the battery pack, increased weight and cost of the battery pack, which is not conducive to the vehicle manufacturers' requirements for weight reduction and cost reduction of the vehicle. Content of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] In view of the deficiencies of the prior art, the utility model provides an integrated busbar for a lithium battery module, which solves the problems raised in the above background technique.

[0005] (2) Technical Solutions

[0006] To achieve the above purposes, the utility model is realized through the following technical solutions: An integrated busbar for a lithium battery module includes a module body, a busbar body fixedly connected to the front side wall of the module body, and two aluminum bars fixedly installed on the front side wall of the busbar body. The two aluminum bars are distributed at the two side edges of the module body, and a copper sheet is connected to the aluminum bar through a fastening component.

[0007] Preferably, the fastening component includes two bolts, washers and nuts. The nut is fixed on the aluminum bar. A second through hole corresponding to the position of the nut is opened on the aluminum bar. A third through hole is opened on the copper sheet. The bolt sequentially passes through the third through hole, the washer, the second through hole and the nut, and the threaded end of the bolt is threadedly connected to the inner ring of the nut.

[0008] Preferably, the copper sheet is in a Z shape, and the thickness of the copper sheet is 2-4 mm.

[0009] Preferably, a positioning pin is fixedly connected to the module body. A first through hole is opened on the aluminum bar, and the positioning pin passes through the first through hole.

[0010] Preferably, a cover plate is fixedly installed on the front side wall of the busbar body through screws, and the cover plate is in a flat plate structure.

[0011] (3) Beneficial Effects

[0012] The present utility model provides an integrated busbar for a lithium battery module, having the following beneficial effects:

[0013] 1. In the present utility model, the integrated busbar is applicable to the side placement of the module, which not only enables the design of the battery pack in the width direction to reduce a certain amount of space, but also allows larger or more components to be placed in the battery pack according to customer or its own needs. In this way, it can be used to reduce the weight of the entire module and meet certain cost reduction requirements.

[0014] 2. In the present utility model, fastening components are provided on the aluminum bar piece to connect the copper piece, which facilitates the convenience and efficiency of the operation of the production line employees, because this standardized connection method can reduce the assembly time and operation steps, thereby accelerating the production speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a front view three-dimensional structure diagram of an integrated busbar for a lithium battery module proposed by the present utility model;

[0016] Figure 2 is a structure diagram of the cover plate in a disassembled state of an integrated busbar for a lithium battery module proposed by the present utility model;

[0017] Figure 3 is Figure 2 an enlarged structure diagram of part A of

[0018] Figure 4 is a connection structure diagram of the copper piece and the aluminum bar piece of an integrated busbar for a lithium battery module proposed by the present utility model;

[0019] Figure 5 is an aluminum bar piece structure diagram of an integrated busbar for a lithium battery module proposed by the present utility model.

[0020] In the figure: 1, module body; 2, cover plate; 3, busbar body; 4, aluminum bar piece; 41, first through hole; 42, second through hole; 5, copper piece; 51, third through hole; 6, bolt; 7, gasket; 8, positioning pin; 9, nut. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0022] Please refer to Figures 1 to 5, the present utility model provides a technical solution: a lithium battery module integrated busbar, including a module body 1, a busbar body 3 fixedly connected to the front side wall of the module body 1, and two aluminum bars 4 fixedly installed on the front side wall of the busbar body 3. The two aluminum bars 4 are distributed at the two side edges of the module body 1, and a copper sheet 5 is connected to the aluminum bar 4 through a fastening component.

[0023] As Figure 1 shown, the integrated busbar can be applied to the module placed sideways, with the large surface facing forward and the side facing up, which plays a role in saving the width direction of the battery pack. Not only can the design of the battery pack in the width direction reduce a certain amount of space, but also larger or more components can be placed in the battery pack according to customer or its own needs. In this way, it can be used to reduce the weight of the entire module and meet certain cost reduction requirements.

[0024] The fastening component includes two bolts 6, washers 7 and nuts 9. The nut 9 is fixed on the aluminum bar 4. A second through hole 42 corresponding to the position of the nut 9 is opened on the aluminum bar 4. A third through hole 51 is opened on the copper sheet 5. The bolt 6 sequentially passes through the third through hole 51, the washer 7, the second through hole 42 and the nut 9, and the threaded end of the bolt 6 is threadedly connected to the inner ring of the nut 9.

[0025] Place the end of the copper sheet 5 on the aluminum bar 4 so that the third through hole 51 corresponds to the position of the second through hole 42, and place the washer 7 on the top of the aluminum bar 4 so that the washer 7 corresponds to the position of the second through hole 42. Thread the threaded end of the bolt 6 sequentially through the third through hole 51, the washer 7, the second through hole 42 and the nut 9, and the threaded end of the bolt 6 is threadedly connected to the inner ring of the nut 9, so as to achieve the connection purpose of the copper sheet 5 and the aluminum bar 4.

[0026] The copper sheet 5 is in a Z shape, and the thickness of the copper sheet 5 is 2-4 mm. The Z-shaped design of the copper sheet 5 can effectively utilize space. Especially when making electrical connections in a limited space, it can be arranged more compactly. As a good conductive material, the Z-shaped design of the copper can maintain good electrical connection and conductivity, which helps to reduce resistance and energy loss.

[0027] A positioning pin 8 is fixedly connected to the module body 1. A first through hole 41 is opened on the aluminum bar 4. The positioning pin 8 passes through the first through hole 41; in this way, the positioning purpose of the aluminum bar 4 is achieved. The use of the positioning pin 8 can ensure that the aluminum bar 4 is accurately installed in the correct position, avoiding installation deviation or error.

[0028] A cover plate 2 is fixedly installed on the front side wall of the busbar body 3 through screws, pressing the busbar body 3 on the module body 1. The cover plate 2 is in a flat plate structure.

[0029] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An integrated busbar for a lithium battery module, characterized in that: It includes a module body (1), a busbar body (3) fixedly connected to the front side wall of the module body (1), and two aluminum bars (4) fixedly installed on the front side wall of the busbar body (3). The two aluminum bars (4) are distributed at the two side edges of the module body (1), and a copper sheet (5) is connected to the aluminum bar (4) through a fastening component.

2. The integrated busbar of a lithium battery module according to claim 1, characterized in that: The fastening component includes two bolts (6), a gasket (7), and a nut (9). The nut (9) is fixed on the aluminum bar (4). A second through hole (42) corresponding to the position of the nut (9) is opened on the aluminum bar (4). A third through hole (51) is opened on the copper sheet (5). The bolt (6) sequentially passes through the third through hole (51), the gasket (7), the second through hole (42), and the nut (9), and the threaded end of the bolt (6) is threadedly connected to the inner ring of the nut (9).

3. The integrated busbar of a lithium battery module according to claim 1, characterized in that: The copper sheet (5) is Z-shaped, and the thickness of the copper sheet (5) is 2-4 mm.

4. A lithium battery module integrated busbar according to claim 1, characterized in that: A positioning pin (8) is fixedly connected to the module body (1). A first through hole (41) is opened on the aluminum bar (4). The positioning pin (8) is arranged through the first through hole (41).

5. A lithium battery module integrated busbar according to claim 1, characterized in that: A cover plate (2) is fixedly installed on the front side wall of the busbar body (3) by screws. The cover plate (2) is a flat plate structure.

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