A control method for an electric vehicle battery box

Abstract

The invention discloses a control method for a battery box of an electric vehicle, which comprises a battery pack, a water cooling assembly, a high thermal conductivity aluminum plate, a heat pipe radiator, a battery box (including a battery box main body and a cooling box), a control box, a wiring port, a heat dissipation Fans, thermocouples, etc. The battery box is composed of the cooling box and the main body of the battery box, which are connected by connecting angle plates with bolts. The cooling box is equipped with cooling fans, guide pulleys and positioning locks. The heat pipe radiator is fixed on the high thermal conductivity aluminum plate. The battery pack, water cooling components and thermocouples are arranged in the main body of the battery box. The control box and wiring port are located on one side of the main body of the battery box. The windward side of the main body of the battery box has a louver structure and is equipped with a wind filter plate, and a cooling fan is installed on the other side. Generally, the battery box of the present invention cools the battery pack through natural air cooling, water cooling and heat pipe heat dissipation. If the temperature controller monitors that the temperature of the battery pack exceeds the optimal threshold, it can control the heat dissipation fan at the air outlet of the main body of the battery box and the water-cooled box. The cooling fan on the cover plate starts to enhance the cooling effect.

Description

technical field [0001] The invention relates to a battery box, in particular to a control method for the battery box of an electric vehicle. Background technique [0002] Lithium-ion batteries have become the dominant power source for electric vehicles and hybrid vehicles because of their specific energy, specific power, low self-discharge, good cycle performance, and environmental friendliness. Pure electric vehicles powered by lithium-ion batteries have become a hot spot in international competition. International mainstream car companies will vigorously promote electric vehicles based on lithium-ion batteries in the next few years. However, lithium-ion batteries generate a lot of heat during use, which will cause the temperature of the battery to rise and the temperature between the batteries in the battery pack to be uneven, which will affect the performance of the battery, and even affect the life and safety of the battery in severe cases. At present, the heat dissipat...

AI Technical Summary

Problems solved by technology

[0003] Purpose of the invention: The purpose of the invention is to solve the problems of poor heat dissipation when the fan suction cooling structure is used for the existing battery box, the heat dissipation fan consumes the battery capacity, and reduces the effective utilization efficiency of the battery, etc., and provides an electric vehicle battery The control method of the box is to design the battery box into two parts: the main body of the battery box and the water-cooled box body, which are separated by a high thermal conductivity aluminum plate; the cooling scheme of the battery box includes natural air cooling, forced air cooling, water cooling and heat pipe cooling

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