Integrated water-cooled power battery box

Abstract

The invention relates to the technical field of electric cars, in particular to an integrated water-cooled power battery box. The integrated water-cooled power battery box provided by the invention comprises a box cover, a box body and a temperature regulating power system, wherein the box body is made of an aluminum alloy material and is manufactured by an extrusion moulding technology; a circulating flow passage is formed in the wall of the box body; a circulating loop for a temperature regulating medium to flow circularly is arranged inside the wall of the box body; and the temperature regulating power system can drive the temperature regulating medium to circularly flow in the circulating loop. In such a way, a water cooling board and a battery box are designed in an integrated manner,a hollow aluminum alloy section is adopted to achieve lightweight design, mechanical properties such as strength and rigidity are met, the integrated water-cooled power battery box is simpler in structure, better in technical performance and smaller in occupied space, and the comprehensive cost can be reduced; the heat-dissipating, cooling and temperature-raising and heating functions can be achieved by using one set of temperature regulating power system, the integrated water-cooled power battery box is simpler in structure, more convenient and fast to use and smaller in occupied space, themanufacturing cost and the using cost can be reduced, and the heat-dissipating efficiency and the heating efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to an integrated water-cooled power battery box. Background technique [0002] In a sustainable society, we are facing two severe problems of energy shortage and environmental pollution. The biggest environmental protection problem faced by automobiles is how to reduce carbon dioxide emissions to alleviate global warming. Under the overall demand for energy saving and emission reduction, new energy vehicles have become the general trend. Because electric vehicles have the characteristics of zero emissions, low noise, and high energy efficiency, Compared with traditional cars, it has less impact on the environment, and its prospects are widely optimistic. The safety, cruising range and charging efficiency of electric vehicles have become important factors and indicators restricting their development. Due to the needs of rapid charge and discharge development of electric v...

AI Technical Summary

Problems solved by technology

[0004] (1) At present, the shell of electric vehicle power battery system is generally made of cold-rolled steel plate through tailor welding or stamping.

[0005] (2) The thermal management of electric vehicle power battery system generally realizes the heating function and heat dissipation function separately by two sets of independent and different devices, such as using heat conduction paste or water (air) cooling system for heat dissipation, and PTC heating components attached to the battery Or the way of heating with PI heating film, which involves a lot of device materials, high risk of failure, low reliability, and takes up a lot of space, high overall cost, and low heating and heat dissipation efficiency

[0006] (3) The general water-cooled power battery thermal management system needs to add a water-cooled plate, supporting pipelines and joints inside the box. There are many pipeline joints, complicated protection treatment, risk of leakage, low reliability, and large space occupation. High proportion of weight, troublesome installation and maintenance, poor workmanship

Images