Heat exchange – With vehicle feature – Heating and cooling
Patent
1997-11-26
2000-06-06
Lazarus, Ira S.
Heat exchange
With vehicle feature
Heating and cooling
165 43, 165202, 454121, 454156, 62244, B60H 300
Patent
active
060706503
ABSTRACT:
To provide a vehicular air conditioning system for activating an electric heater with the output coming from an inverter by actuating a relay at a reasonable cost, a relay and an electric heater acting as electric heat source are connected in series between an output line of three output lines of an inverter and the negative side of a vehicular power supply. The electric heater employs a nichrome wire as its heating element and is used for warming the inside of a vehicle compartment. Moreover, the relay is turned ON/OFF after the output voltage of the inverter is set to zero. As a result, the durability of the relay can be improved, and this relay can be implemented by an existing one without newly manufacturing any dedicated relay so that the cost can be lowered.
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Inoue Yoshimitsu
Iwai Masashi
Kishita Hiroshi
Kitamine Yasukazu
Matsuno Takayoshi
Denso Corporation
Lazarus Ira S.
McKinnon Terrell
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