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:
Aug. 28, 2012
Filed:
Jun. 12, 2008
Makoto Imai, Toyota, JP;
Makoto Imai, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
Provided is a power module capable of welding a snubber capacitor without causing melting damage to a resin housing by welding heat. When leads of a snubber capacitor are respectively welded to upper surfaces of the specific portions of a P-pole bus bar and an N-pole bus bar, the welding heat generated at the specific portions of the P-pole bus bar and the N-pole bus bar is respectively radiated from openings, through which the lower surfaces of the specific portions of the P-pole bus bar and the N-pole bus bar are exposed. As a result, the snubber capacitor can be later appended by welding without causing melting damage to the resin housing due to the welding heat. During welding, a separate cooling head is inserted into the openings to forcibly cool the lower surfaces of the specific portions of the P-pole bus bar and the N-pole bus bar respectively, so that the melting damage to a resin housing can be more reliably avoided.