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:
Feb. 02, 2021
Filed:
Nov. 29, 2017
Mitsubishi Electric Corporation, Tokyo, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
In an electronic circuit board of a power conversion device or the like, heat interference between parts mounted on a multi-layer printed circuit board is suppressed in order to place the mounted parts close to each other. The mounted parts include a semiconductor element and a magnetic part formed by a coil pattern, which is made from a copper foil of the printed circuit board, and by a magnetic core. A screw fixing portions is placed in the surroundings of the semiconductor element and the coil pattern. A heat radiation pattern connected to the screw fixing portion is provided between and around the semiconductor element and the coil pattern when viewed from a direction perpendicular to a principal surface of the multi-layer printed circuit board. The screw fixing portion is connected to a cooler in a manner that gives the screw fixing portion heat conductance and electrical conductance.