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Air conditioning apparatus having electric heating member integrated with heating heat exchanger

  • US 6,078,024 A
  • Filed: 05/13/1998
  • Issued: 06/20/2000
  • Est. Priority Date: 05/27/1997
  • Status: Expired due to Term
First Claim
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1. An air conditioning apparatus for a vehicle having a passenger compartment, the air conditioning apparatus comprising:

  • a case for forming an air passage through which air is blown toward the passenger compartment;

    a heating heat exchanger, disposed in said case, for heating air using a fluid flowing through said heating heat exchanger as a heating source;

    a plurality of electric heating members, disposed in said case, for heating air flowing through said air passage;

    a control unit for controlling electric power supplied to said electric heating members according to a temperature of the fluid supplied to said heating heat exchanger, in such a manner that the whole electric heating members are turned off when the temperature of the fluid is higher than a first predetermined temperature, and a number of said electric heating members to be turned on is increased as the temperature of the fluid is lowered from the first predetermined temperature.

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