Pure electric vehicle heat pump air conditioning system

Abstract

A pure electric vehicle heat pump air conditioning system comprises a compressor, a two-phase cut-off valve A, a two-phase cut-off valve B, a cut-off expansion valve A, a two-phase cut-off valve C, athree-phase cut-off valve A, an outdoor heat exchanger, a three-phase cut-off valve B, a cut-off expansion valve C, an indoor a heat exchanger, a gas-liquid separator, a cooling module and a heat collecting module. The indoor heat exchanger comprises an evaporator and a condenser. The cooling module comprises a battery pack and a cut-off expansion valve B. The heat collecting module comprises a water pump, an inverter, a motor, a water tank, an expansion water tank and a heat exchanger. The compressor, the two-phase cut-off valve A, the condenser, the cut-off expansion valve A, the outdoor heat exchanger, the three-phase cut-off valve B, the cut-off expansion valve C, the evaporator and a vapor-liquid separator are connected in series. The cooling module is connected in parallel to the evaporator and the cut-off expansion valve C. The heat collecting module is connected in series between the three-phase cut-off valve B and the vapor-liquid separator. The pure electric vehicle heat pumpair conditioning system realizes the full utilization of heat of the water tank, protects the battery, runs stably, and saves space and costs.

Description

technical field [0001] The invention relates to the technical field of automobile air conditioning, in particular to a pure electric automobile heat pump air conditioning system. Background technique [0002] With the development of economy and technology and the improvement of people's living standards, people continue to advocate the requirement of building an energy-saving and environment-friendly world. Low-carbon economy has become the main theme of my country's economic development. A pure electric vehicle refers to a vehicle that is powered by a vehicle-mounted power supply, drives the wheels with a motor, and meets the requirements of road traffic and safety regulations. Pure electric vehicles can reduce oil consumption and reduce polluting gas emissions. It has become a vigorously developed industry in our country and has gradually attracted more and more attention. [0003] In the field of pure electric vehicles, since there is no engine water tank to provide heat...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a pure electric vehicle heat pump air-conditioning system aiming at the defects and deficiencies of the prior art, which can solve the problem that the heat energy provided by the heat exchanger is limited when the current pure electric vehicle heat pump air conditioner is heating, which may occur around the heat exchanger. Frosting causes it to fail to operate normally and cannot reach a comfortable temperature. If the temperature is too high and the working environment of the car battery pack is harsh, it is necessary to cool down the battery pack in time, otherwise it may affect the working of the battery pack.

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