Automobile heat management system and electric automobile

Abstract

The invention discloses an automobile heat management system and an electric automobile. The automobile heat management system includes a heat pump air-conditioning system, a battery pack heat exchange system, an engine cooling system, and a first plate-shaped heat exchanger. The heat pump air-conditioning system and the engine cooling system can exchange heat with the battery pack heat exchange system through the first plate-shaped heat exchanger. The heat pump air-conditioning system includes an indoor condenser, an indoor evaporator, a compressor, and an outdoor heat exchanger; a refrigerant inlet of the first plate-shaped heat exchanger communicates with an outlet of the outdoor heat exchanger via a battery cooling branch, or communicates with a first end of a first branch and a first end of a second branch; and a refrigerant outlet of the first plate-shaped heat exchanger communicates with an inlet of the compressor via a battery cooling backflow branch. Accordingly, automobile internal cooling and heating can be achieved, the battery can be cooled or heated, and the battery can work in a suitable temperature range; and the charge / decharge efficiency, the cruising ability and the service life of the battery can be improved and prolonged.

Description

technical field [0001] The invention relates to the field of air conditioners for electric vehicles, in particular to an automotive thermal management system and an electric vehicle including the automotive thermal management system. Background technique [0002] To ensure the high charging and discharging efficiency of the battery of electric vehicles, it is necessary to have a suitable working temperature. Too high or low will have a great impact on its performance and battery life. The utility model patent of Chinese Patent Publication No. CN205039220U discloses a kind of automobile power battery cooling system. Although the power battery cooling system can cool the power battery through the evaporator during refrigeration, the power battery and the evaporator are closely connected to exchange heat. Although it is feasible in principle, it is difficult to implement on the car because the evaporator is generally in the Inside the air-conditioning box, the space of the box...

AI Technical Summary

Problems solved by technology

Although the power battery cooling system can cool the power battery through the evaporator during refrigeration, the power battery and the evaporator are closely connected to exchange heat. Although it is feasible in principle, it is difficult to implement on the car because the evaporator is generally in the Inside the air-conditioning box, the space of the box is limited, and the power battery of a pure electric vehicle is very large, which is usually placed at the bottom of the vehicle

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