Air conditioning heat pump system of automobile

Abstract

The invention discloses an air conditioning heat pump system of an automobile. The air conditioning heat pump system comprises a compressor, an external condenser, a second expansion valve, an evaporator and a gas-liquid separator. The compressor is serially connected with the external condenser by a plate heat exchanger, a first expansion valve and a bypass pipe are arranged between the plate heat exchanger and the external condenser, the bypass pipe is parallel to the first expansion valve, and the external condenser, the gas-liquid separator and the second expansion valve are communicated with one another via a first three-way electromagnetic valve; the plate heat exchanger is used as a channel during refrigerating, and heat of refrigerants can be absorbed by the plate heat exchanger during heating and can be used as a heat source for providing heat exchange heat for the inside of the automobile. The heat sources can be provided for the HVAC (heating ventilation air conditioning) system by the plate heat exchanger via a first circulating water channel, preheated heat sources can be provided for batteries via a second circulating water channel, an economizer is further arranged in a third refrigerating system, and cooling cold sources can be provided for the batteries via a third circulating water channel.

Description

technical field [0001] The invention relates to an air conditioning system of a pure electric vehicle. Background technique [0002] As global warming, air pollution, and rising energy costs become increasingly severe, it has become a common consensus in the global community to vigorously develop clean energy vehicles. Electric vehicles have the advantages of low emissions, good economy, and do not rely on petroleum resources. They have become an important development direction in the future automotive field. However, because electric vehicles use batteries as power sources, their air conditioners are also different from traditional internal combustion engine vehicles. Traditional internal combustion engine Electric vehicle air conditioners use the exhaust heat of the engine and the waste heat of the internal combustion engine to heat the passenger compartment, while the air conditioners for electric vehicles do not have an internal combustion engine, so they cannot meet the...

AI Technical Summary

Problems solved by technology

The system described in the invention patent uses a throttle valve to throttle the fluid, so that the system flow can be adjusted, and uses an economizer, which can improve the energy efficiency of the system to a certain extent, but the heat exchanger 27 heats the air, which reduces to a certain extent energy efficiency of the system

[0014] The patent relates to a system that can cool and heat the battery, but its energy management efficiency is slightly low, and the energy of the system is not used reasonably, and the system itself is complex and not simple enough

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