Enclosed control device

Details Enclosed control device Enclosed control device

1998-10-01

2000-10-31

Picard, Leo P.

Electricity: electrical systems and devices

Housing or mounting assemblies with diverse electrical...

For electronic systems and devices

361690, 361695, 361704, 361720, 174 161, 16510433, 16510434, 165185, H05K 720

Patent

active

061412171

ABSTRACT:
In an enclosed control device including a casing enclosing an electronic circuit in a closed state, a centrifugal fan is also enclosed in the casing for enhancing the cooling of the electronic circuit. With a smoothing capacitor and a semiconductor element heating up, a temperature in the casing increases. Air flows to the side of the centrifugal fan. After passing through the centrifugal fan, the air disperses in the directions along the inner wall of the casing. This flow of air enhances heat transmission from the heated up smoothing capacitor and the semiconductor element to the air, and heat transmission from the air to the casing.

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patent: 5612677 (1997-03-01), Baudry
patent: 5731953 (1998-03-01), Sakurai
patent: 5745041 (1998-04-01), Moss

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