| 摘要 |
PURPOSE: An anti-icing device of an evaporator for an air conditioner is provided to prevent water vapor from being frozen on the surface of a core by heating the temperature of cooling air discharged through the core of the evaporator by sucking in outer air, even if the air-discharged flow of a cooling device is reduced under a constant level of interior temperature and accordingly to reduce the unnecessary loss of power output of an engine by operating the cooling device in downshift. CONSTITUTION: An anti-icing device of an evaporator for an air conditioner includes a temperature sensitive damper(32) mounted to an air flowing passage(22) communicated with a duct(10) of a vehicle and sensed to the temperature of refrigerant to control the opening and closing of an opening passage(14a) that enables to communicate with outer air. The temperature sensitive damper comprises a thermosensitive tank(28) being adjacent to a pipeline(26) for flowing refrigerant and receiving heat from the pipeline; a cylinder(32c) connected to the thermosensitive tank to operate an open-and-shut door(34) for opening and shutting the opening passage according to the volume of sealed refrigerant changed to the temperature; a piston(32b) moving to the volume of a pressure chamber(32e) mounted in the cylinder; and a connecting rod(32a) combined with the piston and connected to the open and shut door.
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