Electric automobile heat pump air conditioner system and control method thereof
A technology for electric vehicles and heat pump air conditioners, applied to vehicle parts, air handling equipment, heating/cooling equipment, etc., can solve problems such as low operating efficiency, and achieve the effects of ensuring safe driving, avoiding fogging, and extending cruising range
Active Publication Date: 2017-07-11
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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Problems solved by technology
[0005]
In order to solve the above problems, the present invention provides an electric vehicle heat pump air-conditioning system and its control method, which solves the problem of low operating efficiency of the existing electric vehicle heat pump air-conditioning system under low temperature conditions by recycling the waste heat of the fuel cell to increase the temperature of the heat source. Improve the heating efficiency of the heat pump air conditioning system in winter, and at the same time solve the safety driving problem caused by the switching between the heating mode and the defrosting mode of the electric vehicle air conditioning system currently developed
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[0028] Such as figure 1 A heat pump air-conditioning system for an electric vehicle as shown, including an electric compressor 3, an internal evaporator 9 and an internal condenser 12 located inside the electric vehicle, an external condenser 5 and an external evaporator 16 located outside the electric vehicle, and A battery cooling device 17 and a water pump 19 for absorbing waste heat of the fuel cell 1. The external evaporator 16 includes a first fluid channel and a second fluid channel for heat exchange. The outlet end of the electric compressor 3 is connected to the internal condenser respectively. 12, the inlet port is connected to the inlet port of the external condenser 5, a first solenoid valve 4 is provided between the electric compressor 3 and the external condenser 5, and a third electromagnetic valve 4 is provided between the electric compressor 3 and the internal condenser 12. Solenoid valve 11, the outlet end of the internal condenser 12 is respectively connecte...
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The invention discloses an electric automobile heat pump air conditioner system and a control method thereof. The electric automobile heat pump air conditioning system comprises an electric compressor, an internal evaporator, an internal condenser, an external condenser, an external evaporator, a battery cooling device, a water pump, an electromagnetic valve and a throttling electronic expansion valve, wherein the electric compressor, the internal evaporator and the internal condenser are arranged in an electric automobile, and the external condenser and the external evaporator are arranged outside the electric automobile; and the battery cooling device and the water pump are used for absorbing the waste heat of a fuel battery, and the electromagnetic valve and the throttling electronic expansion valve are used for switching a refrigeration mode, a heating mode and a defrosting and dehumidifying mode. Comprehensive adjustment of the temperature and humidity in the electric automobile can be achieved, the comfortableness in the automobile is improved, and meanwhile safe driving of the electric automobile is guaranteed. According to the electric automobile heat pump air conditioner system and the control method thereof, the continuous heating is realized, the atomization of condensed water is avoided at the same time, and the problem of safe driving caused by mutual switching of a heating mode and a defrosting mode at present is solved; and the heat generation amount and the heating efficiency of the system are improved by absorbing the waste heat of the fuel battery.
Description
technical field [0001] The invention relates to the field of electric vehicle air conditioning, in particular to an electric vehicle heat pump air conditioning system and a control method thereof. Background technique [0002] Fuel cell electric vehicles have no engine to provide waste heat for heating in winter, so the automotive air conditioning system is required not only to have the cooling function in summer, but also to undertake heating in winter. At present, the air conditioning system of fuel cell electric vehicles is mainly based on electric heating auxiliary air conditioning system. Since electric heating is used for heating in winter, the maximum heating COP is 1. Therefore, when the air conditioner operates in heating mode in winter, it needs to consume a lot of Electric energy is used for heating, which will greatly shorten the cruising range of electric vehicles. [0003] In order to improve the heating efficiency of fuel cell electric vehicles for heating in...
Claims
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IPC IPC(8): B60H1/32B60H1/14
CPCB60H1/00392B60H1/00878B60H1/143B60H1/3202
Inventor 董凯军邵振华苏林
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI