Electric automobile battery box based on liquid-cooled loop and active heating

Abstract

The invention discloses an electric automobile battery box based on a liquid-cooled loop and active heating. An upper battery pack, an upper mounting plate, a lower battery pack and a lower mounting plate are sequentially arranged in a battery box shell from top to bottom, a cooler is mounted on the outer bottom surface of the battery box shell, heat conducting fillers are mounted between the upper battery pack and the upper mounting plate, between the lower battery pack and the lower mounting plate, between the lower mounting plate and the inner bottom surface of the battery box shell and between the cooler and the outer bottom surface of the battery box shell, a liquid-cooled pump and a liquid storage device are communicated through a liquid pipeline and mounted in the battery box shell, the liquid pipeline is sequentially connected with the liquid-cooled pump, penetrates the upper mounting plate and the lower mounting plate, penetrates out of the battery box shell, penetrates the top mounting surface of the cooler and detours, penetrates into the battery box shell and is connected with the liquid-cooled pump to form a loop. According to the electric automobile battery box, heat of electric automobile batteries is discharged by the aid of a circular liquid-cooled loop, and heating and temperature control of the battery packs are performed by the aid of a thin-film electric heater or an electric heating wire when the temperature is low, so that low-temperature start is achieved.

Description

technical field [0001] The invention belongs to the technical field of electric vehicle battery boxes, in particular to an electric vehicle battery box based on a liquid cooling circuit and active heating. Background technique [0002] Electric vehicles, as a new green and environmentally friendly means of transportation, are gradually favored by consumers, especially in the air-polluted northern regions. In order to reduce air pollution, many cities have adopted strict restrictions on the use of private cars. In order to solve the transportation problem, local governments encourage the selection of electric vehicles. At present, due to the thermal control problem of the battery box of electric vehicles, the popularization and application of electric vehicles is restricted. At present, most electric vehicle battery boxes do not adopt thermal control measures, and the heat generated by the battery box is dissipated into the air through natural convection and air heat exchang...

AI Technical Summary

Problems solved by technology

[0004] The invention provides an electric vehicle battery box based on a liquid cooling circuit and active heating to solve the problems of heat dissipation and low-temperature starting of electric vehicles in the prior art

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