Title:
環状コイル多相式回転電機とその使用方法
Document Type and Number:
Japanese Patent JP4702995
Kind Code:
B2
Abstract:
Disclosed is a multi-phase electric rotating machine having toroidal coils that consists of a stator having the number P of stator units (P is integer, P>2), a rotor facing the stator with a predetermined air gap. Each of stator units is formed of a pair of stator iron cores and a toroidal coil that concentrically gets caught therebetween. Each of the stator iron cores has the number Ns of stator teeth formed around an inner circumference at equal pitch Ps, the pair of stator iron cores are arranged such that the stator teeth are shifted by ½ of the pitch Ps. The stator units are arranged in the axial direction such that the stator teeth of the units are shifted by ½P of the pitch Ps. The rotor consists of rotor magnetic bodies and a permanent magnet. Rotor teeth of Nr in the total number are arranged around the outer circumference of the rotor. The rotor teeth consist of k pair of N and S polar rotor teeth groups (k is integer, k>=1) arranged in the rotating direction. Each of the rotor teeth groups consists of the number (Nr/2k) of rotor teeth that are continuously arranged in the rotating direction.
Inventors:
Masafumi Sakamoto
Application Number:
JP2000357351A
Publication Date:
June 15, 2011
Filing Date:
November 24, 2000
Export Citation:
Assignee:
Nippon Densan Servo Co., Ltd.
International Classes:
H02K37/04; H02K1/27; H02K21/14; H02K37/14
Domestic Patent References:
| JP63095845A | ||||
| JP58072362A | ||||
| JP62101383U | ||||
| JP63117282U | ||||
| JP10155263A | ||||
| JP10080126A | ||||
| JP7336990A |
Attorney, Agent or Firm:
Haruya Saito
Yosuke Takahashi
Yosuke Takahashi