Automobile air conditioning system

Abstract

An automobile air conditioning system comprises a compressor, a gas-liquid separator, a first heat exchanger, a second heat exchanger, a third heat exchanger, at least one throttling element, and a temperature reduction and separating device, wherein a third interface of the temperature reduction and separating device is connected with the inlet of the gas-liquid separator or the compressor; when in a refrigeration mode or heating mode, a throttled refrigerant is subjected to separation of gaseous and liquid refrigerant through the temperature reduction and separating device, and the throttled gaseous refrigerant returns to the gas-liquid separator or the compressor from the third interface of the temperature reduction and separating device; and the liquid refrigerant passing through the temperature reduction and separating device is subjected to further circulation. When the air-conditioning system is in the refrigeration or heating mode, the throttled refrigerant is enabled to pass through the temperature reduction and separating device, the liquid refrigerant after the separation of the temperature reduction and separating device is enabled to participate in following system circulation, so that the refrigerants reaching a next heat exchanger are all liquid refrigerants basically, and the energy efficiency of the automobile air conditioning system is improved.

Description

technical field [0001] The invention relates to the technical field of automobile air conditioning, in particular to an electric automobile air conditioning system or a hybrid electric automobile air conditioning system. Background technique [0002] With the development of low-carbon economy, more stringent requirements are put forward for energy saving and emission reduction. Electric vehicles will become one of the aspects of future automobile development due to their energy-saving and environmental protection features. However, since electric vehicles use batteries as a power source, their air-conditioning systems are also different from the original automotive air-conditioning systems. [0003] Traditional internal combustion engine vehicles can use the waste heat of the internal combustion engine and the heat of the engine exhaust to heat the cabin, while the power of electric vehicles mainly comes from the motor, which lacks the heat of the engine to be used, making i...

AI Technical Summary

Problems solved by technology

The system does not have a complete working mode of the automotive heat pump air-conditioning system, there is no dehumidification and deicing mode, such as how to solve the problem when the window is fogged, and the system does not mention that in the heating mode, if the external condenser freezes , the system cannot work, how to solve it; in addition, when the ambient temperature is -5°C and below, the efficiency of the heat pump air conditioning system is very low, and even cannot work normally

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