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Automobile air conditioner evaporator and NTC temperature sensor

Number of Views:27642021-07-15 13:43:23

The temperature control of the automobile air-conditioning system is realized by the temperature controller installed in the car, and the temperature controller is generally installed at the outlet of the evaporator. The air-conditioning load will change with the environment and temperature changes inside and outside the car, so the car air-conditioning temperature Control is very important.
Normally, the car air conditioning system will set an NTC temperature sensor on the surface of the evaporator. After the air conditioner is turned on, the evaporator will continue to cool. When the temperature reaches the set temperature value, a signal will be sent out and the compressor will stop working. If it always sends a signal to the compressor, the compressor will continue to work. If the temperature setting is unreasonable, frost may occur, and it will also affect the normal operation of the entire air-conditioning system. Therefore, the location of the NTC temperature sensor should be the location with the lowest temperature and humidity at the air outlet of the evaporator, so as to ensure whether frost is formed on the surface of the evaporator.

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