Water circulation type thermal management and air conditioning system for electric vehicle

Abstract

The invention relates to a water circulation type thermal management and air conditioning system for an electric vehicle, a vehicle including the thermal management and air conditioning system and anoperation method of the thermal management and air conditioning system. The water circulation type thermal management and air conditioning system for the electric vehicle comprises a refrigerant circulation loop and a water circulation loop. The water circulation type thermal management and air conditioning system for the electric vehicle is characterized in that the refrigerant circulation loop comprises an electronic compressor, a water-cooled condenser, a water-cooled heat exchanger electronic expansion valve and a water-cooled heat exchange; the water circulation loop comprises a water circulation trunk road and at least two water circulation branches, wherein the circulating water of one water circulation branch is heat exchanged with the water-cooled heat exchanger for cooling a passenger compartment and / or a battery pack, and the circulating water of the other water circulation branch is heat exchanged with the water-cooled condenser for heating the passenger compartment; and apart which cools the passenger compartment is a refrigerator, a part which heats the passenger compartment is a heater, and the refrigerator and the heater form a water-cooled air conditioning system.Different from a traditional vehicle air conditioner, the water circulation type thermal management and air conditioning system for the electric vehicle adopts the water-cooled air conditioning system and utilizes the refrigerator and the heater which are arranged in series to refrigerate and / or heat the passenger compartment, the advantage of high refrigeration efficiency of an air conditioner is fully achieved, the heat energy generated by other parts of the vehicle is fully utilized, and energy is saved.

Description

technical field [0001] The present invention relates to the field of new energy vehicles, in particular to thermal management of new energy vehicles, in particular to a water circulation thermal management and air conditioning system for electric vehicles. Background technique [0002] With the current increasingly prominent environmental problems, the rise of new energy vehicles has become an inevitable trend of social development. It can not only reduce people's dependence on fossil fuels, but also reduce vehicle exhaust emissions and effectively improve environmental quality. At present, electric vehicles are more and more accepted by people, and the sales volume is also increasing. Vehicle power battery technology is one of the key technologies in new energy vehicles. The performance of vehicle power batteries directly affects the performance of new energy vehicles. In the development process of new energy vehicles, battery life has become one of the most important facto...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the defects of insufficient heating and cooling capacity of electric vehicles in the prior art, the present invention proposes a water circulation heat management and air-conditioning system for electric vehicles. Different from traditional automobile air conditioners, the present invention adds a water-cooled air-conditioning system. Through the heat exchange between the refrigerant and the circulating water, the water-cooled automotive air conditioner cooperates with the water circulation circuit. Only by controlling the switching of several valves, the heat generated during the use of the vehicle can be fully utilized, and the cooling efficiency of the air conditioner can be fully utilized. High advantage, which greatly reduces the extra power required for vehicle temperature regulation during use, and greatly improves the heating and cooling efficiency, achieving the purpose of saving energy and reducing costs

Images