1, the wind speed, air volume and temperature of each outlet of manual air conditioner are realized by mechanical structure. The manual air conditioner feels a little worse than the other two air conditioners, and the gear position is limited by mechanical conditions. In addition, the appearance is slightly worse, but the price is relatively cheap.
2. The electric air conditioner replaces the connection part between the control panel and the air conditioner host with electric control. The realization principle is basically the same as manual operation, but the control accuracy is more accurate, but the cost is higher. Nowadays, electric air conditioners are generally not installed separately, and most of them need to add an automatic button, which is what you call automatic air conditioners.
3. Automatic air conditioning is the trend of automobile development in the future. Air conditioning can judge and adjust the indoor air quality independently according to the indoor temperature, humidity and personnel, so that the car is always in the comfort zone of human body, which is closer to humanization.
Extended data:
1, the air-conditioning compressor is connected with the engine crankshaft through electromagnetic clutch and belt to obtain power. The switch of the car air conditioner is controlled by this clutch. When the engine is running, the speed of the compressor can't be adjusted, so to realize the function of frequency converter, it is necessary to realize the continuous variable adjustment of refrigeration capacity by adjusting the working volume of the compressor, that is, the volume of the piston chamber, which is the so-called variable capacity compressor.
2. Ordinary automobile air conditioners are non-variable displacement compressors, and the outlet temperature of the air conditioners is basically fixed, and the air conditioners always run when they are turned on. Only by changing the air volume and manual switch can air conditioning and temperature be controlled. Later semi-automatic air conditioners actually sensed temperature changes through magnetic clutches and sensors to control compressor operation. When the sensor installed at the outlet of the evaporator senses that the temperature of the wind is not low enough, it will close the electromagnetic clutch of the compressor through the circuit to make the compressor run with the engine to realize refrigeration. When the air outlet temperature is lower than the set temperature, the electromagnetic clutch is controlled to cut off, so that the compressor does not work. The temperature inside the car varies greatly, from cold to hot. The vehicle variable displacement compressor realizes the continuous variable adjustment of refrigeration capacity by changing the working volume of the compressor,
3. Therefore, as far as the air outlet temperature is concerned, the air outlet temperature of an automatic air conditioner using a variable capacity compressor is continuously variable. After the temperature is stabilized, the working angle of the compressor spindle will be automatically adjusted to adjust the refrigerant consumption for each compression, reduce the volume of the working cylinder, and realize the automatic adjustment of refrigeration capacity, thus maintaining comfort and reducing fuel consumption. Will not start and stop frequently.