Battery cooling group, electric automobile air conditioner system and electric automobile

Abstract

The invention discloses a battery cooling group, an electric automobile air conditioner system and an electric automobile. The battery cooling group is used for cooling a battery of the electric automobile and comprises a plate heat exchanger (1) and a thermal expansion valve (2). The plate heat exchanger (1) comprises a refrigerant flow channel and a cooling liquid flow channel. A refrigerant inlet (13) and a refrigerant outlet (12) of the refrigerant flow channel are arranged on the same side of the plate heat exchanger (1), and a refrigerant inlet (13) and a refrigerant outlet (12) of the refrigerant flow channel are matched with corresponding ports of the thermal expansion valve (2) and communicated through a pipe to form a refrigerant loop. The ports of the plate heat exchanger (1) and the thermal expansion valve (2) in the battery cooling group are processed in a matching mode. When the plate heat exchanger and the thermal expansion valve are assembled, reliable connection can be achieved without a pipe. The connection pipe between the plate heat exchanger and the thermal expansion valve is reduced. The battery cooling group is compact in structure, convenient to install, good in shock resistance and low in use cost.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a battery cooling group. In addition, the present invention also provides an electric vehicle air conditioning system and an electric vehicle comprising the above-mentioned battery cooling group. Background technique [0002] Electric vehicle is a battery-powered vehicle, because its impact on the environment is relatively small compared with traditional vehicles, so as the requirements for energy saving and emission reduction of vehicles continue to increase, electric vehicles will be the development trend of future vehicles. [0003] The battery of an electric vehicle will generate heat during the working process, which will increase the temperature of the battery itself, and the longer the battery works, the more heat it will accumulate and the higher the temperature will be. If the battery is not cooled in time, it will affect The working performance and service li...

AI Technical Summary

Problems solved by technology

[0007] 1. The volume is relatively large, and the components occupy a relatively large space in the car body

[0008] 2. Because the connection structure between the two is relatively complicated and the volume is relatively large, it is inconvenient to install in the car

[0009] 3. The two are connected by pipelines, and the cost is relatively high

[0010] 4. The connecting pipeline between the two is relatively long, the anti-vibration performance of the whole component is poor, and it is easy to break the connecting pipe.

[0011] 5. Due to the increase of pipeline materials, the weight of the whole assembly is heavy

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