Finished vehicle thermal management system of pure electric automobile

Abstract

The invention discloses a finished vehicle thermal management system of a pure electric automobile, which comprises a motor water pump, a motor controller, a driving motor, an indoor radiator, a two-way electromagnetic valve, a first three-way electromagnetic valve, a double-cavity radiator, a charger, a DC / DC, a first expansion water tank and a battery water pump, a power battery, a second three-way electromagnetic valve, a heat exchange device, a water heating PTC, a second expansion water tank, an electric compressor, an indoor condenser, a first high-pressure electromagnetic valve, a heating throttling pipe, an outdoor condenser, a thermal expansion valve, a second high-pressure electromagnetic valve, an evaporator, a liquid storage drying tank, a third high-voltage solenoid valve anda high-voltage PTC. The system ensures the proper temperature of the driving motor, power battery and passenger cabin, particularly fully utilizes the residual heat of the driving motor to supply theheating of the passenger cabin and the cooling of the power battery under the condition of low temperature, and prolongs the service life of components such as the driving motor, the power battery andthe like, the waste of battery energy is avoided, the comfort of the passenger cabin is ensured, and the driving range of the finished vehicle is improved.

Description

technical field [0001] The invention relates to the technical field of pure electric vehicles, in particular to a thermal management system for a complete vehicle of pure electric vehicles. Background technique [0002] The vehicle thermal management system of a pure electric vehicle is to ensure that the drive motor and power battery can work in a reasonable temperature range, meet the comfort requirements of the occupants, and improve the service life and driving range of the vehicle. At present, most of the power batteries are cooled by heat exchange device and air-conditioning system. When the external environment temperature is low, the air-conditioning cooling cannot be started, resulting in the power battery under the working condition of "high speed driving - fast charging - high speed driving". The lack of cooling function affects the service life of the power battery. In addition, under low temperature conditions, the passenger compartment needs to be heated, and ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a thermal management system for a pure electric vehicle, which can solve the problem of lack of cooling function of the power battery and the problem of unreasonable use of waste heat of the drive motor when the ambient temperature is low

Images