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.

Date of Patent:
May. 03, 2022

Filed:

Nov. 12, 2019
Applicant:

Hitachi Astemo, Ltd., Hitachinaka, JP;

Inventors:

Takeshi Kobayashi, Tochigi, JP;

Daiki Kudo, Tochigi, JP;

Masahiro Shimada, Tochigi, JP;

Kenichi Sasaki, Utsunomiya, JP;

Assignee:

HITACHI ASTEMO, LTD., Hitachinaka, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K 7/20 (2006.01); H01L 23/473 (2006.01);
U.S. Cl.
CPC ...
H05K 7/20927 (2013.01); H01L 23/473 (2013.01); H05K 7/20254 (2013.01); H05K 7/20945 (2013.01);
Abstract

A power conversion device includes a cooling structure capable of cooling down, by a coolant that flows through a first flow channel formed by a first wall portion and a second wall portion facing with each other, a first electronic component and a second electronic component mounted on an external surface of the first wall portion. The first wall portion is formed in a stepwise shape, and includes a first mount portion on which the first electronic component is mounted, a second mount portion which has a different height from the first mount portion, and on which the second electronic component is mounted, and a first connection portion that is extended between the first mount portion and the second mount portion.


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