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:
Jun. 21, 2011
Filed:
Aug. 14, 2007
Ryoso Masaki, Narashino, JP;
Yuji Enomoto, Hitachi, JP;
Motoya Ito, Hitachinaka, JP;
Hisato Amano, Hitachi, JP;
Shigeki Morinaga, Yachiyo, JP;
Katsuyuki Yamazaki, Chiba, JP;
Kazuhide Ebine, Narashino, JP;
Ryoso Masaki, Narashino, JP;
Yuji Enomoto, Hitachi, JP;
Motoya Ito, Hitachinaka, JP;
Hisato Amano, Hitachi, JP;
Shigeki Morinaga, Yachiyo, JP;
Katsuyuki Yamazaki, Chiba, JP;
Kazuhide Ebine, Narashino, JP;
Hitachi Industrial Equipment Systems Co., Ltd., Tokyo, JP;
Abstract
The present invention provides a motor which includes a stator including a plurality of one-phase stators composed of a pair of stator cores having claw-type teeth and a coil for generating magnetic flux at the claw-type teeth, and a rotor for generating torque at a rotary shaft, wherein the stator core includes a plurality of split cores having the same shape, and the split cores are formed to have a recessed portion and a projected portion to be fitted in the recessed portion. Thereby, by using a plurality of the split cores having the same shape, one stator core is formed. On this occasion, the shape of the split cores is molded so that the recessed portion and the projected portion of one stator core are disposed at positions at which those are fitted to the projected portion and the recessed portion of the opposing stator core, respectively.