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:
Apr. 03, 2001
Filed:
Nov. 10, 1999
Yuji Enomoto, Yokohama, JP;
Yukinori Taneda, Yokohama, JP;
Noriaki Yamamoto, Fujisawa, JP;
Suetaro Shibukawa, Hitachinaka, JP;
Masaharu Senoh, Narashino, JP;
Fumio Tajima, Taga-gun, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
For achieving small-sizing and high efficiency by improving heat radiation of coils, and further for simple-construction to be easily disassembled, thereby being environment-friendly from a view point of recycling, an electric rotating machine comprising: a stator,being constructed by inserting coils,into slots,of a stator core,; an outer frame,being divided into a plurality thereof, so as to cover periphery of the stator core of said stator; a pair of bearing holder portions,and,, each having a fitting portion,or,to be fitted into an inner diameter reference surface,at both end portions of said stator and being provided with a bearing,or,at an axial center portion thereof, and being attached at both sides of said stator core so as to cover coil end portions dropping out at both sides of said stator; a squeezing mechanism (,) fixing the outer frame at an outer periphery of the stator core, by a wedge function between each of the bearing holder portions and the outer frame due to a squeezing function of attaching the each of said pair of bearing holder portions at both sides of said stator core; and a rotor,being formed with an escaping portion for escaping from an outer diameter of a portion opposing to a fitting portion of each of said bearing holder portion, rotatably positioned within said stator core.