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:
Apr. 16, 1996
Filed:
May. 09, 1995
Tsutomu Kazama, Aichi, JP;
Satoshi Kondo, Aichi, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A motor control unit having a first semiconductor module circuit for converting an alternating current into a direct current, a second semiconductor module circuit consisting of switching elements for converting the direct current into an alternating current of optional voltage and frequency, and a control circuit for controlling the semiconductor module circuits. The unit has a case that is substantially rectangular in cross section, vertically high and laterally thin with respect to a perpendicular installation surface. Two heat sinks are disposed at the outside of the unit case at the back thereof and are thermally connected to a laminar heat plate that is disposed within the case and in contact with the heat dissipating installation surfaces of the semiconductor modules inside the unit case.