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. 15, 2007
Filed:
Nov. 08, 2002
Hiroshi Murakami, Osaka, JP;
Hisakazu Kataoka, Fukui, JP;
Akihiko Watanabe, Fukui, JP;
Hiroaki Tanaka, Fukui, JP;
Akihiko Yamazaki, Fukui, JP;
Shinichi Okuyama, Fukui, JP;
Yasutake Seki, Fukui, JP;
Hiroshi Murakami, Osaka, JP;
Hisakazu Kataoka, Fukui, JP;
Akihiko Watanabe, Fukui, JP;
Hiroaki Tanaka, Fukui, JP;
Akihiko Yamazaki, Fukui, JP;
Shinichi Okuyama, Fukui, JP;
Yasutake Seki, Fukui, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
The objective of this invention is to provide a motor which can reduce occurrence of a torque reduction in the overload, and also lower the temperature of a motor main body immediately even in the case of a temperature rise in the motor main body. This motor comprises: a statorthat is constituted by a stator main bodyhaving a plurality of slotsformed on the circumference of the main body with equal intervals from each other and teetheach of which is located between the slots, and extends outward along the radial direction from the slot bottom face of the slotswith the same width, and a coil bobbinthat is attached to each of the teethof the stator main body, and is formed by winding a wirearound a bobbinthat has been preliminarily made from an insulating material such as a resin, in a concentrated winding system; and a rotorthat is maintained on the circumference of the statorconcentrically with the stator main body, in a manner so as to face the stator main bodythrough a predetermined air gap