New energy automobile heat pump air conditioning system and control method
A new energy vehicle, heat pump air-conditioning technology, applied to vehicle parts, air handling equipment, heating/cooling equipment, etc., can solve the problems of complex air-conditioning system, unstable system operation, and ineffective heating effect of pure heat pump system, etc. The effect of normal operation
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Embodiment 1
[0048] This embodiment relates to a heat pump air-conditioning system for new energy vehicles, and its system component connection diagram is shown in the attached figure 1 As shown, including cooling module, heat collecting module, indoor heat exchanger, outdoor heat exchanger and other components;
[0049] in,
[0050] --The other components include gas-liquid separator, compressor, two-phase stop valve A, two-phase stop valve B, stop-expansion valve A, three-phase stop valve A, three-phase stop valve B, stop-expansion valve C, Two-phase shut-off valve C; adding three-phase shut-off valve A can ensure that when the outdoor heat exchanger cannot work normally due to low temperature, the system can still skip the outdoor heat exchanger and continue to work with the heat of the water tank, which can be better Ensure the normal operation of the whole system; add two-phase cut-off valve C to achieve the purpose of indoor dehumidification, solve the problem of insufficient heatin...
Embodiment 2
[0075] This embodiment relates to a heat pump air-conditioning system for a new energy vehicle, and the system is the same as Embodiment 1.
[0076] This embodiment provides a control method for a heat pump air-conditioning system of a new energy vehicle, the schematic flow chart of which is as follows figure 2 shown, including the following steps:
[0077] Step 1, the car is started, and the heat pump air-conditioning system is running;
[0078] Step 2, the temperature sensor detects that the ambient temperature is less than or equal to the temperature setting value, and transmits the data to the air conditioner control panel;
[0079] Step 3, the air conditioner control panel controls the air heater to start working to provide heat to the room;
[0080] Step 4, the R134a refrigerant in the heat exchanger starts to run, and the heat pump air-conditioning system starts a normal heating mode.
[0081] Further, the temperature setting value is -15°C.
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