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:
Jan. 07, 2020
Filed:
Apr. 11, 2014
Hitachi Industrial Equipment Systems Co., Ltd., Chiyoda-ku, Tokyo, JP;
Hirooki Tokoi, Tokyo, JP;
Shuuichi Takahashi, Tokyo, JP;
Yasuei Yoneoka, Tokyo, JP;
Toshifumi Suzuki, Tokyo, JP;
Toru Sakai, Tokyo, JP;
Katsuyuki Yamazaki, Tokyo, JP;
Ryousou Masaki, Tokyo, JP;
Norihisa Iwasaki, Tokyo, JP;
Yuji Enomoto, Tokyo, JP;
Hitachi Industrial Equipment Systems Co., Ltd., Tokyo, JP;
Abstract
To ensure ready assembly of a stator and reliably reduce the shaft voltage in an axial air gap rotating electric machine, an axial air gap rotating electric machine has a circular ring-shaped stator formed by a plurality of stator cores arranged about a rotational axis direction in a ring shape. Each stator core comprises a tubular bobbin and a coil, with the tubular bobbin having an iron core inserted into a bobbin inner tubular portion substantially matching the peripheral shape of the iron core. The axial air gap rotating electric machine has a first conductive member having a horizontal portion and a vertical portion contacting the end surface of the bobbin opening portion. The horizontal portion contacts parts of the iron core outer peripheral surface and the inner peripheral surface of the bobbin inner tubular portion, and the vertical portion is conductively connected to the inner circumferential housing surface.