The role of automobile air conditioning pressure switch
Automotive air conditioning pressure switch is basically divided into: high voltage protection switch and low voltage protection switch two.
Its main function is to control the operation of the electromagnetic clutch in the pipeline when the pressure of the refrigerant is higher than the pressure of the system or below the basic operating pressure of the system so as to achieve the purpose of protecting the air conditioning system.
Pressure switch made of stainless steel is fully enclosed, small size, light weight, vibration resistance, long life and reliable performance, easy installation and so on.
Pressure controller used in refrigeration unit system, automotive air conditioning, air compressor. Oil pressure, pressure, hydraulic pressure, water pressure, etc. need to adjust the pressure of their own industrial equipment, play a protective and automatic control role.
Pressure switch in the automatic control everywhere, installed in the automotive air conditioning refrigerant circulation pipeline, the detection of refrigeration system pressure, when the pressure is abnormal to start the corresponding protection circuit to prevent damage to the system. Common pressure switch mainly high voltage switch, low voltage switch, double pressure switch and triple pressure switch and so on.
In the use of air conditioning, when the heat sink is blocked, the cooling fan does not turn or refrigerant excess and other abnormal conditions, the system pressure will be too high, if not controlled, too high pressure will damage the system components.
The high-voltage switch is mounted in a high-pressure line and is normally mounted on a liquid drier in series with the compressor electromagnetic clutch circuit or the condenser fan circuit. When the system pressure is too high, the high-voltage switch action, cut off the clutch circuit or connected to the cooling fan high-speed circuit to prevent the pressure continues to rise, to avoid damage to the system.
