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:
Aug. 12, 1980
Filed:
May. 18, 1978
Yuzuru Simazaki, Hitachi, JP;
Ryota Doi, Nakamachi, JP;
Yuji Kumagai, Tokaimura, JP;
Ikou Fukazawa, Hitachi, JP;
Motoo Yamaguchi, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A stator structure for the induction motor is disclosed, in which the winding accommodated in the slots of the stator iron core has one end portion, outside of the stator iron core, shaped to provide a flared bell-like opening, and the other end portion thereof, outside of the stator iron core, forming short-passed winding and being provided with an opening sufficiently large to permit insertion of the shaft of the rotor. Between the inner surface of the short-passed end portion and a given portion of the surface of the stator iron core a coil-supporting member is disposed. The outer surface of the coil-supporting member has a shape along the inner surface of the other coil end portion, while the inside thereof is so shaped as to provide a sufficient space or air gap with respect to the rotor to be inserted. The coil-supporting member is made of an elastic material and adapted to be forcibly fitted between the inner surface of the short-passed coil end portion and the given portion of the surface of the stator iron core from the opening of the bell-shaped coil end portion through the rotor-accommodating cavity formed in the stator core, thus closely contacting the inner surface of the short-passed end portion. Means is provided for bringing at least part of the coil-supporting member into close contact with the short-passed coil end portion and rendering them immovable with respect to each other.