Refrigeration – Refrigeration producer – Compressor-condenser-evaporator circuit
Patent
1990-03-05
1991-05-07
Tapolcai, William E.
Refrigeration
Refrigeration producer
Compressor-condenser-evaporator circuit
165 802, 357 82, 361388, F25D 2900
Patent
active
050126563
ABSTRACT:
The present invention is directed to a heat sink for a control device in an electric circuit of an automobile air conditioning system. The control device includes a power transistor which varies the amount of electric power supplied to a motor, so as to vary the rotational speed of the motor in response to demand. The motor drives a compressor of a refrigerant circuit in order to change the driving condition of the compressor in response to change in the rotational speed thereof. The power transistor is fixedly attached to an exterior surface of an evaporator which is the coolest element of the refrigerant circuit in order to provide cooling therefor. Thus, an excessive rise in temperature of the power transistor is prevented without impeding the flow of air in a duct which conducts air from the evaporator to a passenger compartment and without complicating the process of assembling the refrigerant circuit of the automobile air conditioning system.
REFERENCES:
patent: 2966033 (1960-12-01), Hughel
patent: 3334684 (1967-08-01), Roush et al.
patent: 4326386 (1982-04-01), Tamura
patent: 4546619 (1985-10-01), Rohner
patent: 4616693 (1986-10-01), Dietzsch et al.
patent: 4697427 (1987-10-01), Niggemann et al.
patent: 4720981 (1988-01-01), Helt et al.
patent: 4815658 (1989-03-01), Hidemitsu et al.
patent: 4832258 (1989-05-01), Hoshino et al.
Sanden Corporation
Tapolcai William E.
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