An electric vehicle thermal management system with waste heat recovery and utilization function

Abstract

The invention discloses an electric vehicle thermal management system with waste heat recovery and utilization function, comprising a motor, a three-in-one control mechanism, an air-conditioning circuit system and a battery. The heat dissipation port of the motor is communicated with the inlet of the heat storage device through a pipeline, the heat dissipation port of the heat storage device is communicated with the inlet of the temperature control valve through a pipeline, and the outlet of the temperature control valve is connected to the low temperature control valve through a pipeline. The radiator is communicated with the inlet of the four-way reversing valve, and the invention relates to the technical field of thermal management systems. The electric vehicle thermal management system with waste heat recovery and utilization function connects the motor cooling circuit and the battery cooling circuit through a four-way reversing valve. The electronically controlled waste heat recovery and utilization function can improve the energy utilization rate of the vehicle and effectively increase the cruising range.

Description

technical field [0001] The invention relates to the technical field of thermal management systems, in particular to an electric vehicle thermal management system with waste heat recovery and utilization functions. Background technique [0002] Electric vehicle (BEV) refers to a vehicle powered by a vehicle-mounted power supply, driven by a motor to drive the wheels, and meets the requirements of road traffic and safety regulations. Due to its smaller impact on the environment than traditional vehicles, its prospects are widely optimistic, but the current technology It is not yet mature, and the working principle is battery-current-power regulator-motor-power transmission system-driving the car. The types of electric vehicles are divided into pure electric vehicles (BEV), hybrid electric vehicles (HEV) and fuel cell vehicles (FCEV) ), pure electric vehicles are driven by electric motors. Compared with fuel vehicles, the main difference lies in the four major components, drive...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a thermal management system for electric vehicles with the function of waste heat recovery and utilization, which solves the problem that heat is directly lost to the air by low-temperature radiators and fans, causing a certain amount of heat loss. Under the environment, both the battery and the air conditioning system need to use an independent electric heater to provide heat source, which consumes a lot of electric energy and greatly reduces the problem of the cruising range of electric vehicles.

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