Battery box lower tray assembly and machining method thereof

Abstract

The invention provides a battery box lower tray assembly. A lower tray is arranged as a frame structure enclosed by a front side plate, a rear side plate, a left side plate and a right side plate; a plurality of vehicle mounting frames are arranged on the external side of the frame structure; four rectangular modules communicating with each other in the up-and-down direction are arranged in the lower tray; longitudinal beams are arranged between the adjacent rectangular modules; a plurality of locating columns are arranged on the longitudinal beams; water cooling modules are fixed on the rectangular modules through rectangular module locating pins; bottom protective plates are arranged under the water cooling plates; labyrinth grooves are formed in the bottom protective plates; a pluralityof waist-shaped grooves are formed between the labyrinth grooves; water inlet and outlet nozzles are connected with the water cooling plates; a sealing groove is formed in an upper cover plate; a sealing adhesive tape matched with the sealing groove is arranged in the sealing groove. The battery box lower tray assembly has the advantages that the structure is reasonable, the battery box lower tray assembly is safe and reliable, battery heat accumulation can be effectively reduced, a protective effect on a battery is realized, the use performance of the battery is greatly improved, and the service life of the battery is prolonged.

Description

technical field [0001] The invention relates to the field of pallets, in particular to a battery box lower pallet assembly and a processing method thereof. Background technique [0002] When the vehicle is running under different working conditions, the battery will produce a large amount of heat; coupled with the accumulation of time and the influence of space, uneven heat accumulation will occur, resulting in a complex and changeable operating environment for the battery. Due to the dense arrangement of batteries, the heat gathers in the middle area and the edge area is less, which leads to the uneven temperature of each cell in the battery pack, which exacerbates the inconsistency in the internal resistance and capacity of each battery module. Accumulated for a long time, it will cause overcharge and overdischarge of some batteries, which will affect the performance and life of the battery, and seriously cause safety hazards. The lower tray of the battery box in the prio...

AI Technical Summary

Problems solved by technology

[0002] When the vehicle is running under different working conditions, the battery will produce a large amount of heat; coupled with time accumulation and space influence, uneven heat accumulation will occur, resulting in a complex and changeable battery operating environment

Due to the dense placement of batteries, the heat in the middle area is concentrated, and the edge area is less, resulting in uneven temperature of each cell in the battery pack, which aggravates the inconsistency of the internal resistance and capacity of each battery module.

Accumulated for a long time, it will cause overcharge and overdischarge of some batteries, which will affect the performance and life of the battery, and seriously cause safety hazards

The lower tray of the battery box in the prior art has a single function and only plays a supporting role, but cannot effectively prolong the service life of the battery; Need to design a new pallet structure under the battery box

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