Battery pack

Abstract

The utility model discloses a battery pack, and relates to the technical field of manufacturing of electric automobile accessories. The device comprises a lower box body and an upper box body, the lower box body comprises a first shell and a battery module arranged in the first shell, and an electric device and a flexible connector are arranged on the upper surface of the battery module; the upper box body comprises a second shell corresponding to the first shell, the second shell is provided with an upward protruding installation part at the position where the electric device corresponds to the flexible connection, and the installation part is provided with a connector. Compared with the prior art, the utility model can solve the problem that the production cost of the battery pack is higher because the number of opened moulds of the current battery pack is larger.

Description

Technical Field

[0001] The utility model relates to the technical field of manufacturing electric vehicle accessories, in particular to a battery pack. Background Art

[0002] The battery pack is one of the core accessories of electric vehicles, used to store electric energy to supply the motor to drive the vehicle. The battery pack generally has an upper box body and a lower box body. Since the lower box body of the battery pack is usually designed to be relatively strong and can carry heavier battery modules, and the structural design of the lower box body is also convenient for the installation and fixation of connectors, most of the battery modules, soft connections and connectors of the current battery pack are installed in the lower box body. The electrical components of the battery pack are also installed on the sheet metal parts on the four sides of the battery module through the electrical component mounting plate. However, the envelope sizes of the battery packs of different vehicle models are different, the installation positions and models of the battery pack connectors are inconsistent, and the installation positions of the electrical components are also greatly restricted. The upper box body needs to cooperate with the parts of the lower box body and is provided with installation openings for installing the protruding parts of the parts of the lower box body. Therefore, the sizes of the upper and lower box bodies of different vehicle models cannot be unified, and new molds need to be opened. The upper box body also needs to wait until all the parts of the lower box body are installed before it can be assembled with the lower box body. For the above reasons, the upper and lower box bodies of the battery pack cannot achieve platform production, the number of molds opened is large, and the production cost of the battery pack is also high. Content of the Utility Model

[0003] The purpose of the utility model is to provide a battery pack, which can solve the problem that the large number of molds opened for the current battery pack leads to a high production cost of the battery pack.

[0004] To solve the above problems, the technical solution adopted by the utility model is: this battery pack includes a lower box body and an upper box body; the lower box body includes a first outer shell and battery modules arranged in the first outer shell, and electrical components and soft connections are arranged on the upper surface of the battery modules; the upper box body includes a second outer shell corresponding to the first outer shell, and an upward protruding installation part is arranged at the corresponding position of the electrical components and the soft connections of the second outer shell, and a connector is arranged on the installation part.

[0005] In the above technical solution, a more specific technical solution may further be: the connector is arranged on the front wall of the installation part.

[0006] Further, the electrical components are arranged on the upper surface of the battery module through an electrical component mounting plate.

[0007] Further, one end of the soft connection is electrically connected to the battery module, and the other end is electrically connected to the electrical component mounting plate.

[0008] Further, a fence is arranged on the side of the battery module, and the fence is surrounded by two side plates and two end plates, and the side plates and the end plates are arranged at intervals.

[0009] Further, the battery module includes multiple columns of battery cells connected in sequence. A T-shaped bar is provided between two adjacent columns of battery cells, and both ends of the T-shaped bar are connected to the two end plates.

[0010] Further, a cover plate is provided on the top of the installation part.

[0011] Further, a sealing gasket is provided between the cover plate and the installation part.

[0012] Due to the adoption of the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0013] When the utility model is produced, first determine the size of the battery pack. After arranging the battery module in the first outer shell, then arrange the electrical components and the flexible connection on the upper surface of the battery module, and the connector is arranged on the installation part. Moreover, the installation part protrudes upward, leaving space for the installation of the electrical components and the flexible connection. Therefore, for battery packs of different vehicle models, they can be made to have the same length and width, and only need to set different heights to install all parts. This feature of the utility model enables the lower box body to achieve platform production, only newly mold the upper box body, reducing the number of molds for the lower box body, lowering the production cost of the battery pack, and also providing more choices for the installation positions of the electrical components and the flexible connection, making them less restricted. The connector is arranged on the upper box body, which is also convenient for connection and use. The connector can also be arranged at other positions of the installation part according to needs. Description of the Drawings

[0014] Figure 1 is a structural schematic diagram of the utility model;

[0015] Figure 2 is a structural schematic diagram of the battery module. Detailed Embodiment

[0016] The following further details the utility model in conjunction with the embodiments of the drawings:

[0017] As Figure 1 and Figure 2 shown, the battery pack includes a lower box body and an upper box body; the lower box body includes a first outer shell 1 and a battery module 2 provided in the first outer shell 1. Electrical components 3 and a flexible connection 4 are provided on the upper surface of the battery module 2; the upper box body includes a second outer shell 5 corresponding to the first outer shell 1. An installation position for placing the upper part of the battery module 2 is provided in the second outer shell 5. An upwardly protruding installation part 6 is provided at the corresponding position of the electrical components 3 and the flexible connection 4 in the second outer shell 5. A connector 7 is provided on the installation part 6. In this embodiment, the connector 7 is arranged on the front wall of the installation part 6.

[0018] The electrical component 3 is arranged on the upper surface of the battery module 2 through the electrical component mounting plate 8; one end of the flexible connection 4 is electrically connected to the battery module 2, and the other end is electrically connected to the electrical component mounting plate 8.

[0019] Fences are provided on the sides of the battery module 2, which are surrounded by two side plates 9 and two end plates 10, and the side plates 9 and the end plates 10 are arranged at intervals; the battery module 2 includes multiple columns of sequentially connected battery cells, and a T-shaped strip 11 is provided between two adjacent columns of battery cells. Both ends of the T-shaped strip 11 are connected to the two end plates 10. The fences and the T-shaped strip 11 play a role in fixing the battery cells, and the electrical component mounting plate 8 is installed on the T-shaped strip 11.

[0020] A cover plate 12 is provided on the top of the mounting portion 6, and a gasket 13 is provided between the cover plate 12 and the mounting portion 6.

[0021] When the utility model is produced, first determine the size of the battery pack, and after arranging the battery module 2 in the first outer shell 1, then set the electrical component 3 and the flexible connection 4 on the upper surface of the battery module 2, and the connector 7 is set on the mounting portion 6, and the mounting portion 6 protrudes upward, leaving space for the installation of the electrical component 3 and the flexible connection 4; therefore, for battery packs of different vehicle models, the length and width can be made the same, and only different heights need to be set to install all parts. This feature of the utility model enables the lower box body to be produced in a platformized manner, only the upper box body needs to be newly tooled, reducing the number of toolings for the lower box body, reducing the production cost of the battery pack, and also providing more choices for the installation positions of the electrical component 3 and the flexible connection 4, which are not easily restricted. Setting the connector 7 on the upper box body is also convenient for connection and use, and the connector 7 can also be set at other positions of the mounting portion 6 according to needs.

Claims

1. A battery pack, characterized in that: It includes a lower box body and an upper box body; the lower box body includes a first outer shell and a battery module disposed within the first outer shell, an electrical component and a flexible connection being provided on the upper surface of the battery module; the upper box body includes a second outer shell corresponding to the first outer shell, an upwardly protruding mounting portion being provided at the corresponding position of the electrical component and the flexible connection on the second outer shell, and a connector being provided on the mounting portion; a fence is provided on the side of the battery module, the fence being formed by enclosing two side plates and two end plates, and the side plates and the end plates being spaced apart; the battery module includes multiple columns of battery cells connected in sequence, a T-shaped strip being provided between two adjacent columns of battery cells, and both ends of the T-shaped strip being connected to the two end plates.

2. The battery pack according to claim 1, wherein: The connector is provided on the front wall of the mounting portion.

3. The battery pack according to claim 1 or 2, characterized in that: The electrical component is disposed on the upper surface of the battery module through an electrical component mounting plate.

4. The battery pack according to claim 3, characterized in that: One end of the flexible connection is electrically connected to the battery module, and the other end is electrically connected to the electrical component mounting plate.

5. The battery pack according to claim 4, wherein: A cover plate is provided on the top of the mounting portion.

6. The battery pack according to claim 5, wherein: A sealing gasket is provided between the cover plate and the mounting portion.

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