Heat exchange – With timer – programmer – time delay – or condition responsive... – Having heating and cooling capability
Patent
1995-09-19
1999-08-10
Ford, John K.
Heat exchange
With timer, programmer, time delay, or condition responsive...
Having heating and cooling capability
165231, 165 803, 236 44R, 236 44A, 621766, 62 94, 361695, 361696, F25D 1706
Patent
active
059343680
ABSTRACT:
A highly reliable electronic apparatus free from condensation in the cabinet of the apparatus. The electronic apparatus has printed circuit boards on which heat emitting semiconductor devices are mounted and a fan. The electronic apparatus further comprises a hygrometer for measuring the relative humidity and dew-point temperature of the cooling air that is introduced into the cabinet through an opening, a surface temperature sensor for sensing the temperature of the surface of the semiconductor devices, an internal temperature sensor for sensing the internal temperature of the semiconductor device, dehumidifier and heater means made up of a heat pump and an outdoor unit, and a controller for controlling the dehumidifier means and the heater means so that the relative humidity is less than 100% and the dew-point temperature is less than the surface temperature of the semiconductor devices.
REFERENCES:
patent: 3504736 (1970-04-01), Tausch
patent: 4147299 (1979-04-01), Freeman
patent: 4495545 (1985-01-01), DuFresne et al.
patent: 4512161 (1985-04-01), Logan et al.
patent: 4620248 (1986-10-01), Gitzendanner
patent: 4729424 (1988-03-01), Mizuno et al.
patent: 4813475 (1989-03-01), Couvrette
patent: 5052472 (1991-10-01), Takahashi et al.
patent: 5136856 (1992-08-01), Yamamoto et al.
patent: 5144811 (1992-09-01), Brodie et al.
patent: 5210680 (1993-05-01), Scheibler
patent: 5230466 (1993-07-01), Moriya et al.
patent: 5359285 (1994-10-01), Hashinaga et al.
patent: 5361188 (1994-11-01), Kondou et al.
patent: 5509468 (1996-04-01), Lopez
patent: 5582235 (1996-12-01), Hamilton et al.
patent: 5697223 (1997-12-01), Ishii et al.
Atarashi Takayuki
Daikoku Takahiro
Hatada Toshio
Kobayashi Jun'ichi
Takanashi Akihiro
Ford John K.
Hitachi , Ltd.
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