Lithium battery pack fixing structure

Abstract

The invention provides a lithium battery pack fixing structure, comprising a box body of which upper part is an opening structure. A square lithium battery array is set in the box body. Side frames are fixedly set on circumference side walls of the box body, are inward convex and resist against peripheral faces of the integrated square lithium battery group. The circumference side faces of every two square lithium batteries are set closely, thereby realizing circumference positioning of the square lithium batteries. The two side frames are set up and down in parallel and enclose the upper andlower positions in the height direction of the square lithium battery group. The lithium battery pack fixing structure also comprises an insulated positioning cover plate which covers the upper ends of the square lithium batteries which are set in an array mode. The square lithium batteries are compressed through adoption of a compression frame of which two ends are connected with two inner side walls in the length direction of the box body and the insulated positioning cover plate, thereby realizing upper and lower positioning of the square lithium battery group. The device is simple in structure, is convenient and fast in mounting operation, is convenient for mounting and storage, is reasonable in design and compact in structure and has a good market prospect.

Description

technical field [0001] The invention relates to the technical field of a square lithium battery installation structure, in particular to a lithium battery PACK fixing structure. Background technique [0002] In recent years, my country's new energy vehicles have achieved remarkable development results. As the core component of new energy vehicles, the reliable and scientific grouping of power batteries has always been an important research topic in the field of new energy vehicles, especially in the field of pure electric vehicles. The group design of the power battery not only involves the series-parallel connection between the power battery cells, the reliable fixing of the power battery, but also the effective protection of the power battery. Lithium-ion batteries have quickly become the standard power source for portable devices. Lithium-ion batteries can provide the same energy as Ni-MH batteries, but they can be reduced by about 35% in weight, and lithium-ion batterie...

AI Technical Summary

Problems solved by technology

Due to the strong activity of lithium itself, lithium-ion batteries have been plagued by battery safety issues for the development of the electric vehicle industry. Whether it is lithium iron phosphate or ternary lithium batteries, there are common problems that are prone to fire and explosion. The fire of lithium batteries is not like that of fuel. It can be extinguished and rescued. Once the battery collides and causes internal thermal runaway, a chain reaction will occur, and the fire will spread rapidly. Any fire extinguishing and rescue measures will hardly work, and an explosion will eventually be the inevitable result.

At present, the combined installation structure of the existing square lithium battery power battery PACK is complex, time-consuming and laborious to assemble, and the input cost is high, which needs to be improved urgently

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