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:
Jul. 30, 2002
Filed:
May. 09, 2001
Hideaki Mori, Chiyoda-machi, JP;
Shigeo Amagi, Tokai-mura, JP;
Saburo Usami, Hitachi, JP;
Tadashi Sonobe, Iwaki, JP;
Yasuomi Yagi, Hitachi, JP;
Tomoya Tsunoda, Hitachi, JP;
Mitsuru Onoda, Takahagi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An electric rotating machine having a rotor, rotatably disposed in an inner radius side of a stator through a gap, including rotor windings contained in a plurality of slots formed in a rotor core, a slot insulation placed between the rotor winding and the slot, an insulation block placed between a wedge arranged at a peripheral side of the rotor core outward of the rotor winding of the slot and the rotor winding. At least one of the slot insulation and the insulation block is an insulation formed by filling or mixing granular and/or short-fiber insulating materials having a thermal conductivity higher than 5 W/m·K in a resin and a thermal conductivity in a thickness direction higher than 0.35 W/m·K.