The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 13, 1995
Filed:
Jun. 10, 1994
Masao Katooka, Kawanishi, JP;
Yoshimasa Kawashima, Kobe, JP;
Makoto Sakurada, Yao, JP;
Atsushi Makitani, Toyonaka, JP;
Sansha Electric Manufacturing Company, Ltd., Osaka, JP;
Abstract
A power supply device includes power semiconductor devices generating Joule's heat by themselves and circuit components generating no considerable heat by themselves but, as a group, generate a slight rise in temperature, which are included in a power supply circuit of the device. A structure is arranged to forcibly cool these semiconductor devices and circuit components by partitioning the interior of a housing of the Dower supply device to form a passage for an air flow, providing the housing with inlet and outlet openings for the air flow and providing the passage with a ventilating fan.