Fixed structure for battery pack internal batteries

Abstract

The invention relates to a fixed structure for battery pack internal batteries. The fixed structure comprises base plates, a back plate, a side plate and monomer battery supports, wherein the quantity of the base plates is one more than that of the monomer battery supports; the base plates are horizontally arranged; one monomer battery support is arranged between every two adjacent base plates; the widths L1 of the base plates are greater than the widths L2 of the monomer battery supports; the side plate comprises a side plate main body; a plurality of second raised lines are arranged on the side plate main body; the side plate is vertically arranged; the second raised lines are arranged between every two base plates in an inserted manner; long rod bolts pass through the base plates and the second raised lines so that the base plates and the side plate are fixed; the back plate is fixed on the base plates through bolts, and is positioned at the rear ends of the monomer battery supports; and positioning columns pass through the back plate and are fixed with nuts in a locking manner. The fixed structure is simple in structure and convenient to install, batteries are convenient to maintain and change, and the cost is reduced.

Description

technical field [0001] The invention belongs to a cell fixing structure, and in particular relates to a cell fixing structure inside a battery pack used for a soft pack power battery. Background technique [0002] With the deterioration of the environment and the dwindling of resources, new energy is playing an increasingly important role in the automotive field. The popular power battery used in electric vehicles requires the battery to be modularized, but due to reasons such as battery connection, consistency of parameters, and differences in ambient temperature, the battery module has the following disadvantages: 1. The battery needs to meet different requirements In some cases, the same module is difficult to be universal, and more modules need to be developed to meet different requirements, which greatly increases the cost of development; 2. After the battery has problems during production or use, it must be replaced or maintained cost increase. [0003] The patent "2...

AI Technical Summary

Problems solved by technology

The popular power battery used in electric vehicles requires the battery to be modularized, but due to reasons such as battery connection, consistency of parameters, and differences in ambient temperature, the battery module has the following disadvantages: 1. The battery needs to meet different requirements In some cases, the same module is difficult to be universal, and more modules need to be developed to meet different requirements, which greatly increases the cost of development; 2. After the battery has problems during production or use, it must be replaced or maintained cost increase

[0003] The patent "201621220550.5" discloses a soft-pack power battery standard module. The soft-pack battery module is fixed between the battery bracket and the front and rear end plates of the bracket and the battery bracket through two structures of positioning pins and buckles, and the structural strength of the module is increased. And the structure is relatively simple, and the installation is easy; but because the cells are fixed by the cell bracket as a whole, when a single cell has a problem, it must be unpacked and replaced as a whole, which is easy to cause damage to the rest of the cells, which is time-consuming and laborious. caused a waste of resources

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