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. 30, 2005
Filed:
Jun. 14, 2001
Hiroshi Murakami, Suita, JP;
Noriyoshi Nishiyama, Izumiotsu, JP;
Taro Kishibe, Nishinomiya, JP;
Haruhiko Kado, Moriyama, JP;
Toshiyuki Tamamura, Kusatsu, JP;
Hisakazu Kataoka, Takefu, JP;
Masayuki Shinto, Takefu, JP;
Osaaki Morino, Takefu, JP;
Hiroshi Murakami, Suita, JP;
Noriyoshi Nishiyama, Izumiotsu, JP;
Taro Kishibe, Nishinomiya, JP;
Haruhiko Kado, Moriyama, JP;
Toshiyuki Tamamura, Kusatsu, JP;
Hisakazu Kataoka, Takefu, JP;
Masayuki Shinto, Takefu, JP;
Osaaki Morino, Takefu, JP;
Abstract
A structure of a rotor used in a synchronous motor employing both of permanent magnets and a stator using concentrated windings is disclosed. Slits () provided in a section of a rotor laminated in a direction of a rotary shaft are shaped like an arc or a bow, and the shape protrudes toward an outside rim of rotor (). Permanent magnets () are inserted into slits (). This structure produces less magnetic salient poles than a conventional rotor, so that a magnetic flux density can be lowered, and an efficient motor with less loss is obtainable.