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:
Oct. 23, 2012
Filed:
Dec. 12, 2008
Masashi Bando, Wako, JP;
Noriyuki Abe, Wako, JP;
Shigemitsu Akutsu, Wako, JP;
Satoyoshi Oya, Wako, JP;
Masashi Bando, Wako, JP;
Noriyuki Abe, Wako, JP;
Shigemitsu Akutsu, Wako, JP;
Satoyoshi Oya, Wako, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
An electric motor (M) includes first and second stators (L,R) on the outside forming a rotating magnetic field, an outer rotor () disposed inside the first and second stators (L,R) and having first and second induced magnetic poles (L,R), and an inner rotor () disposed inside the outer rotor () and having first and second permanent magnet (L,R). The phases of the first and second induced magnetic poles (L,R) of the outer rotor () are displaced from each other by only half of a predetermined pitch, and the phases of the first and second permanent magnets (L,R) of the inner rotor () are displaced from each other by only the predetermined pitch. Accordingly, the first and second stators (L,R) facing the first induced magnetic poles (L) and the second induced magnetic pole (R) can be made to have the same phase and polarity, thus simplifying the structures of the first and second stators (L,R).