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, 2005
Filed:
May. 26, 2003
Naoyuki Kadoya, Sakai, JP;
Yasuhiro Kondo, Hirakata, JP;
Satoshi Tamaki, Hirakata, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A permanent magnet embedded type concentrated winding motor generator, wherein of the mechanically and electrically independent first and second winding groups (), the plurality of first teeth () wound with the first winding groups () are divided into three groups (I, II, III) for example, and the winding directions of the windings of adjacent first teeth () within the same group (I, II, III) are opposite. Furthermore, one second tooth () wound with a second winding group () with a different winding specification from the first winding groups () is provided between each of the groups (I, II, III). Accordingly, the relative sizes of the generated voltages in the first winding groups () and the second winding groups () differ each other, allowing the realization of a compact and low cost construction capable of charging two different electric potentials from a single unit, which also enables a reduction in distortion of the waveform of the counter electromotive force, a reduction in iron loss, and an improvement in the efficiency of the motor, and enables the efficient charging of power sources with two different electric potentials.