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. 10, 2011
Filed:
Jan. 23, 2007
Kenichi Hattori, Hitachiota, JP;
Tadaaki Kakimoto, Hitachi, JP;
Akitomi Semba, Hitachi, JP;
Mitsuru Saeki, Hitachinaka, JP;
Takashi Shibata, Hitachi, JP;
Manabu Suzuki, Hitachi, JP;
Naomi Okamoto, Takahagi, JP;
Kenichi Hattori, Hitachiota, JP;
Tadaaki Kakimoto, Hitachi, JP;
Akitomi Semba, Hitachi, JP;
Mitsuru Saeki, Hitachinaka, JP;
Takashi Shibata, Hitachi, JP;
Manabu Suzuki, Hitachi, JP;
Naomi Okamoto, Takahagi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A rotor for a rotary electrical device to be arranged to face to a stator, comprises a rotor iron core extending axially and including a plurality of slots arranged with a predetermined circumferential interval, a rotor coil contained by the slots, a coil support member of electrically insulating property arranged between parts of the rotor coil at an axial end of the rotor coil, and a retaining ring covering the coil support member and the axial end of the rotor coil, the coil support member has two fitted portions and a connecting portion connecting the fitted portions to each other to form H-shape of cross section and to form a space between the rotor coil and each of opposite sides of the connecting portion, and the coil support member further has a communicating path communicating to the spaces.