Air conditioning apparatus for vehicle seat

Details Air conditioning apparatus for vehicle seat Air conditioning apparatus for vehicle seat

1999-03-02

2000-08-22

Ford, John K.

Heat exchange

With timer, programmer, time delay, or condition responsive...

Having heating and cooling capability

165 42, 165 43, 165299, 165240, 237 123R, 237 123A, 237 123B, 237 2A, 454 75, 454120, 454907, 219202, F25B 2900, B60H 100

Patent

active

061056677

ABSTRACT:
An air conditioning apparatus for a vehicle seat includes a seat blower unit disposed in a lower side of the seat, and a seat duct for leading air from an air conditioning unit to the seat through the seat blower unit. In the air conditioning apparatus, it can be determined that heat load of a passenger compartment is decreased to a predetermined value based on an operation state of a unit blower of the air conditioning unit, and the seat blower is stopped when the heat load is decreased to the predetermined value. Further, the seat blower is turned on or off according to the heat load of the passenger compartment, so that temperature of the seat can be controlled within a predetermined range. On the other hand, even when the unit blower is stopped when a water temperature of a heating unit of the air conditioning unit is lower than a set temperature, the seat blower unit and an electrical heater disposed in the seat duct are operated so that air passing through the heating unit is heated by the electrical unit and is blown into the seat by the seat blower unit.

REFERENCES:
patent: 2718839 (1955-09-01), Wilfert
patent: 3127931 (1964-04-01), Johnson
patent: 3394887 (1968-07-01), Megargle et al.
patent: 4572430 (1986-02-01), Takagi et al.
patent: 5279459 (1994-01-01), Single, II
patent: 5450894 (1995-09-01), Inoue et al.
patent: 5921100 (1999-07-01), Yoshinori et al.
patent: 5921314 (1999-07-01), Schuller et al.

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