Battery module tray and battery pack

Abstract

The application discloses a battery module tray for a dual-layer module, and a battery pack. The battery module tray comprises a tray main body and multiple stand bars; the tray main body and multiple stand bars form a holding space, a first layer of battery module is located in the holding space, and the second layer of battery module is located on an upper surface of the tray main body; the battery module tray is characterized by comprising a tray main body reinforcing structure located on the lower surface of the tray main body and used for increasing the strength of the tray main body; astand bar reinforcing structure located on multiple stand bars and used for increasing the strength of multiple stand bars, wherein the tray main body and multiple stand bars are an integrated structure.

Description

technical field [0001] The invention relates to the technical field of assembly, and more specifically, to a battery module tray and a battery pack for a double-layer module. Background technique [0002] At present, the global automobile industry is facing huge challenges of energy and environmental issues. Pure electric vehicles have high energy efficiency and less pollution to the environment, so they have become the direction of the future development of the automobile industry. As the core component of pure electric vehicles, the power battery pack's structural design and safety performance will directly affect the overall performance of pure electric vehicles. Since in pure electric vehicles, the installation space reserved for battery packs is small and irregular, in order to make full use of the limited installation space, it is necessary to arrange the battery modules in a double-layer structure. In the prior art, battery module trays are usually used to solve this...

AI Technical Summary

Problems solved by technology

[0004] However, in the prior art, battery module trays are mostly manufactured by sheet metal tailor welding. The battery module trays formed by manual blanking and machine bending have low consistency, uneven surface, and heavy weight. The production efficiency of the battery module tray is low, which is not conducive to mass production

[0005] The tray body 11 and the tray feet 12 are produced separately. When assembling the battery pack, the tray body 11 and the tray feet 12 need to be fixed together with bolts first, which takes more assembly time; the mounting holes 121 are located on the two baffles. Between the structures, there is the problem of inconvenient assembly; the use of bolts causes uneven stress on the main body of the tray 11, which reduces the service life of the battery module tray; because multiple tray feet 12 are separated, additional trays need to be produced Leg 12, increased manufacturing cost

[0006] In addition, in the prior art, the structure of the battery module tray is relatively simple, with only a small amount of reinforcing ribs, which causes the problem of low overall structural strength

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