Heat pump air conditioning system of pure electric vehicle and pure electric vehicle

Abstract

In order to solve the problem of weak comfort due to refrigeration or heating delay or even if incapability of refrigerating or heating caused by reversing delay or no in-place of reversing of refrigerant in a heat pump air conditioning system in the prior art, the invention provides a heat pump air conditioning system of a pure electric vehicle and the pure electric vehicle. The heat pump air conditioning system of the pure electric vehicle comprises an electric compressor, a gas-liquid separator, an internal first heat exchanger, an external first heat exchanger, an intersystem heat exchanger, a first expansion valve, an external second heat exchanger, a second expansion valve, an electric water pump, an internal second heat exchanger, multiple pipes connected among equipment, and valves arranged on the pipes. The heat pump air conditioning system of the pure electric vehicle realizes the functions of refrigerant refrigeration and secondary heating of coolant of the vehicle air conditioning system, and effectively prevents the refrigeration or heating delay, or even the condition of incapability of refrigerating or heating; and meanwhile, the heat pump air conditioning system of the pure electric vehicle is higher in heating energy efficiency, high in comfort, simple and liable to perform.

Description

technical field [0001] The invention relates to an air-conditioning system on an automobile, in particular to an air-conditioning heat pump system for a pure electric automobile without an engine waste heat system. Background technique [0002] Traditional fuel vehicles are equipped with air-conditioning systems, which are generally used for cooling in summer, and use the engine cooling water at a higher temperature for heating in winter. [0003] However, electric vehicles cannot use the cooling water of the engine. Therefore, the air-conditioning system on common pure electric vehicles adopts a heat pump air-conditioning system. [0004] For example, a patent discloses a heat pump air-conditioning system. It includes: compressor, four-way valve, first one-way valve, internal condenser, F-type thermal expansion valve, second one-way valve, external condenser, first stop valve, second stop valve, H-type thermal expansion valve valves, internal evaporator, gas-liquid separa...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem in the prior art of the heat pump air-conditioning system that the cooling or heating is delayed due to the delay of refrigerant reversing, the reversing is not in place, or even the inability to perform cooling or heating, resulting in poor comfort of the air conditioner, the embodiment of the present invention provides A pure electric vehicle heat pump air conditioning system and pure electric vehicle

Images