Motor and battery temperature integration control system of electric automobile

Abstract

The invention relates to a motor and battery temperature integration control system of an electric automobile. An original air conditioner system of the electric automobile is adopted in the system. The motor and battery temperature integration control system comprises a condenser, an electromagnetic valve, an expansion valve, an evaporator and a compressor, and further comprises a controller, a motor heat dissipating system and a battery heat dissipating system, wherein the motor heat dissipating system and the battery heat dissipating system are in parallel connection with the air conditioner system. The motor heat dissipating system comprises a motor, the electromagnetic valve, the expansion valve and a plate fin type heat exchanger, wherein the motor is in parallel connection with the air conditioner system, and the electromagnetic valve, the expansion valve and the plate fin type heat exchanger are in parallel connection with the air conditioner system; and the battery heat dissipation system comprises a battery, the electromagnetic valve, the expansion valve and a plate fin type heat exchanger, wherein the battery is in parallel connection with the air conditioner system, and the electromagnetic valve, the expansion valve and the plate fin type heat exchanger are in parallel connection with the air conditioner system. By means of the system, the motor and the battery are both provided with temperature sensors. According to the system, the air conditioner system, the motor heat dissipation system and the battery heat dissipation system of an electric passenger car are integrated to the system, the number of components and space are saved, the refrigerating function of the air conditioner compressor can be utilized for meeting the sufficient heat dissipation needs of the motor and the battery, and the heat dissipation effect needed by the motor and the battery is achieved.

Description

technical field [0001] The invention relates to the field of heat dissipation of motor batteries of automobiles, in particular to the field of heat dissipation of motor batteries of electric vehicles. Background technique [0002] At present, on electric buses, there is an independent system of air conditioning for heat dissipation in the car, and independent heat dissipation systems for motor and battery heat dissipation. As we all know, the motor and battery on electric vehicles consume a lot of energy and generate a lot of heat. This also requires a high cooling power of the cooling system to keep the temperature of the motor and battery within a reasonable range. [0003] The following is a detailed description of the motor battery heat dissipation system of the existing electric vehicle. The structure of the existing electric vehicle motor battery heat dissipation system is as follows: the motor and the battery are each equipped with a temperature sensor, the temperatu...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of unsatisfactory heat dissipation effect, high cost and inconvenient operation of the existing electric veh

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