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. 13, 2025
Filed:
Mar. 10, 2021
Hitachi Astemo, Ltd., Hitachinaka, JP;
Minami Teranishi, Tokyo, JP;
Shinya Kawakita, Hitachinaka, JP;
HITACHI ASTEMO, LTD., Hitachinaka, JP;
Abstract
An electronic control device includes a first circuit board having a first mounting surface on which a first electronic component is mounted, a second circuit board having a second mounting surface on which a second electronic component is mounted, and a base member disposed between the first mounting surface and the second mounting surface so as to face the first electronic component and the second electronic component, where a first heat-conducting material is disposed between the base member and the first electronic component, a second heat-conducting material is disposed between the base member and the second electronic component, the base member includes a first region that at least does not overlap the second circuit board when viewed in a line-of-sight direction normal to the first mounting surface and the second mounting surface, and a second region that overlaps both of the first circuit board and the second circuit board when viewed in the line-of-sight direction, a heat dissipation unit including a plurality of heat dissipation fins is provided in the first region of the base member, and a ventilation hole penetrating between the heat dissipation unit and an outside is provided in the second region of the base member.