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:
Dec. 23, 2025
Filed:
Mar. 02, 2022
Hitachi Astemo, Ltd., Hitachinaka, JP;
Takahiro Araki, Tokyo, JP;
Takeshi Tokuyama, Tokyo, JP;
Akihiro Namba, Tokyo, JP;
Shigehisa Aoyagi, Hitachinaka, JP;
Noriyuki Maekawa, Hitachinaka, JP;
Hitachi Astemo, Ltd., Hitachinaka, JP;
Abstract
A power conversion device includes: an inverter circuit; an AC conductor; a magnetic sensor that t detects magnetism generated when an AC current flows; a first magnetic body and a second magnetic body that face each other with the AC conductor and the magnetic sensor interposed therebetween; and a first housing and a second housing that are formed by conductive members. The first housing covers one opening of a space located between the first magnetic body and the second magnetic body, the second housing covers the other opening of the space. The end of each of the first magnetic body and the second magnetic body is formed so that the distance to the first housing or the second housing is smaller than the thickness of each of the first magnetic body and the second magnetic body in the arraying direction thereof.