Power supply with separated airflows

Electric power conversion systems – Current conversion – With cooling means

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Details

361695, H02M 100

Patent

active

058318470

ABSTRACT:
A power supply adapted to be driven by a primary power source to produce an output voltage. The supply has a case with a bottom wall, an air inlet, an air outlet, and an enclosed chamber bordered by the bottom wall, the air inlet and the air outlet. The bottom is adapted to rest on a horizontal surface to define an upward direction within the case. The air inlet is operable to deliver air into the case along an incoming passageway having components directed inwardly and upwardly to prevent liquid that falls atop the case from intruding into the case. A power converter mounted in the case is adapted to be connected to the primary power source for producing the output voltage. The power supply also has a fan mounted in the case between the air inlet and the air outlet for providing a separated pair of airflows downstream and upstream of the fan. The pair of airflows pass across different portions of the power converter. The power supply also has a principal bulwark mounted in the case for (a) dividing the chamber, (b) supporting the fan, and (c) impeding bypassing of the fan.

REFERENCES:
patent: 4035711 (1977-07-01), Piller
patent: 5170336 (1992-12-01), Getter et al.
patent: 5235491 (1993-08-01), Weiss
patent: 5424915 (1995-06-01), Katooka et al.
patent: 5484012 (1996-01-01), Hiratsuka
patent: 5725622 (1998-03-01), Whitson et al.

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