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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.:

US 11923125 B1

PDFFull Text
Date of Patent:
Mar. 05, 2024

Filed:

Oct. 11, 2019

Power conversion device, multilayer board included in the same, and vehicle having power conversion device mounted therein

Applicant:

Sumitomo Electric Industries, Ltd., Osaka, JP;

Inventor:

Keiji Tashiro, Osaka, JP;

Assignee:

SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka, JP;

Attorney:

Oliff PLC

Primary Examiner:

Xiaoliang Chen

Int. Cl.
CPC ...
H05K 1/02 (2006.01); H01F 27/24 (2006.01); H01F 27/28 (2006.01); H02M 3/335 (2006.01); H02M 7/48 (2007.01); H02M 7/797 (2006.01); H05K 1/14 (2006.01); H05K 1/16 (2006.01); H05K 1/18 (2006.01); B60L 50/60 (2019.01); H01R 12/52 (2011.01); H01R 12/58 (2011.01);
U.S. Cl.
CPC ...
H01F 27/2804 (2013.01); H02M 3/33573 (2021.05); H02M 3/33576 (2013.01); H05K 1/144 (2013.01); H05K 1/165 (2013.01); B60L 50/60 (2019.02); B60L 2210/10 (2013.01); H01F 27/24 (2013.01); H01F 2027/2809 (2013.01); H01R 12/52 (2013.01); H01R 12/58 (2013.01); H05K 1/18 (2013.01); H05K 2201/09063 (2013.01); H05K 2201/10166 (2013.01);
Abstract

A power conversion device includes a multilayer board including conductive layers that form a primary-side coil and a secondary-side coil of a transformer; and a circuit board electrically connected to the multilayer board, having a first conversion circuit formed therein or thereon. The multilayer board includes a transformer region in which the transformer is formed; a core member disposed in the transformer region and around the primary-side coil and secondary-side coil are wound; a circuit formed region which is adjacent to the transformer region and a second conversion circuit is formed, the second conversion circuit being electrically connected to the primary-side coil or the secondary-side coil; and a terminal portion which is electrically connected to the secondary-side coil or the primary-side coil. The first conversion circuit is electrically connected to the transformer via the terminal portion. One of the coils has a smaller number of turns than the other coil.

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