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:
Jun. 25, 2024
Filed:
Aug. 27, 2019
Hitachi Automotive Systems, Ltd., Hitachinaka, JP;
Kenta Yakuzawa, Hitachinaka, JP;
Toshikazu Shigyo, Hitachinaka, JP;
Hitachi Astemo, Ltd., Hitachinaka, JP;
Abstract
An object of the invention is to provide an electronic control unit having a structure that suppresses corrosion of plating and completely seals the substrate side under an environment where corrosion occurs. An electronic control unitincludes a printed wiring boardin which electronic components are provided, a casein which the printed wiring boardis accommodated, and a coverthat is provided on the case. The caseand the coverhave joint surfaces that face each other and are connected via a sealing material. The joint surface is provided with a screwthat passes through the coveror the case. A platingis provided in a surface of the caseor the coverthat is provided with a through hole through which the screwpenetrates. An exposed portionof a base material formed by partially peeling off the platingpresents inside the caseor the coverand on an inner side of the casefrom the through hole. The sealing materialhas penetrated into the exposed portionof the base material.