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:
May. 17, 2011
Filed:
Aug. 24, 2007
Koji Nuki, Kitakyushu, JP;
Koji Nuki, Kitakyushu, JP;
Kabushiki Kaisha Yaskawa Denki, Fukuoka, JP;
Abstract
A motor controller which is inexpensive and has high cooling performance by using an extrusion heat sink (), reducing the number of parts, and reducing the man-hours of assembling is provided. In a motor controller including an extrusion heat sink (), and a power semiconductor module () including a plurality of external electrode terminals which closely contact the extrusion heat sink (), and a printed circuit board having the plurality of external electrode terminals connected thereto, die-casting frames () in which a pedestal () for attaching a motor controller and bosses () for attaching a printed circuit board are molded are provided at both ends of the extrusion heat sink ().