Automobile heat managing system and electric automobile

Abstract

The invention discloses an automobile heat managing system and an electric automobile. The automobile heat managing system comprises a heat pump air conditioning system, a battery pack heat exchanging system and a first plate heat exchanger, wherein the heat pump air conditioning system comprises an indoor condenser, an indoor steamer, a compressor and an outdoor heat exchanger; a refrigerant inlet of the first plate heat exchanger communicates with an outlet of the outdoor heat exchanger via a selectively connected or disconnected battery cooling branch, or communicates with a first end of a selectively connected or disconnected first branch and a first end of a selectively connected or disconnected second branch; a refrigerant outlet of the first plate heat exchanger communicates with an inlet of the compressor via a battery cooling backflow branch; and the first plate heat exchanger is serially connected to a battery cooling liquid loop of the battery pack heat exchanging system. Cooling liquid is cooled via the refrigerant and then the battery is cooled by the cooling liquid, so the battery can work in a proper temperature range in summer; and therefore, battery charging and discharging efficiency can be improved, cruising ability and service life can be enhanced.

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 whose Chinese patent publication number is 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 b...

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

Images