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.

Date of Patent:
Feb. 25, 2003

Filed:

Aug. 24, 2000
Applicant:
Inventors:

Masaru Ozawa, Wako, JP;

Takeo Fukuda, Wako, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 5/18 ; H02K 1/512 ; H02K 1/12 ;
U.S. Cl.
CPC ...
H02K 5/18 ; H02K 1/512 ; H02K 1/12 ;
Abstract

A stator of a rotating electrical machine has improved heat dissipation of a stator and end portions of a stator winding thereof which are protected from damage due to stress concentration, by inserting a silicone rubber sheet between a stator core having no slots and the stator winding which is accommodated thereinside. The silicone rubber sheet comprises a rubber type material having flexibility so as to be deformable under pressure, which is reinforced by a glass cloth or a polyester mesh cloth. Moreover, this is preferably an insulating and heat dissipating sheet which contains a filler having good thermal conductivity. More preferably, a silicone rubber sheet which contains boron nitride is used. Furthermore, a protective sheet of a resin material is further inserted between the stator core and end portions of the stator winding over the silicone rubber sheet.


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