Control circuit for car cooler

Abstract

Abstract PURPOSE:To perform cooling of the gaseous refrigerant in early stage in a radiator equipped with a preset air-conditioner by driving an electric fan in linkage with the action of both a cooling water temp. sensing switch and a condenser refrigerant pressure sensing switch. CONSTITUTION:An electric fan 5 is furnished on the cabin side about the radiator 8 while a condenser 9 for air-conditioner, on its opposite side. One end of this electric fan 5 is connected to the positive side of power source 1, whose negative side is grounded, through a fuse 2 and an ignition switch 3 and the other end is grounded through a cooling water temp. sensing switch 6 and a refrigerant pressure sensing switch 7 of the condenser 9 connected therewith parallelly. Accordingly even when the temp. of the cooling water is below the specified value to hold the temp. sensing switch 6 in Off, a rise of the pressure of refrigerant will put the pressure sensing switch in On to actuate the electric fan 5.

Inventors

• 👤 Takeshi Abeyama
• 👤 阿部山　健

Bibliographic Details