STEPPING MOTOR - NIDEC SANKYO CORPORATION

Title:

STEPPING MOTOR

Document Type and Number:

WIPO Patent Application WO/2010/064368

Kind Code:

A1

Abstract:

Provided is a stepping motor which can obtain a large torque without increasing the external diameter. More specifically, the stepping motor (100) includes a plurality of stator sets (20) which are arranged in the direction of the motor axis line L, so that electrode teeth (215, 225, 265, 275) have an identical angle position between the stator sets (20). In a rotor (3), a rotor magnet (32) is formed by a plurality of magnet pieces (320) which are arranged in the direction of the motor axis line L. In the rotor magnet (32), the same magnetic pole is continuously formed over the entire motor axis line L direction.

Inventors:

AKAHANE, Takehiko (5329 Shimosuwa-machi, Suwa-gu, Nagano 11, 〒3938511, JP)
赤羽健彦 (〒11 長野県諏訪郡下諏訪町５３２９番地日本電産サンキョー株式会社内 Nagano, 〒3938511, JP)
TSUKIOKA, Yasuyuki (5329 Shimosuwa-machi, Suwa-gu, Nagano 11, 〒3938511, JP)
月岡靖幸 (〒11 長野県諏訪郡下諏訪町５３２９番地日本電産サンキョー株式会社内 Nagano, 〒3938511, JP)

Application Number:

JP2009/006104

Publication Date:

June 10, 2010

Filing Date:

November 16, 2009

Export Citation:

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Assignee:

NIDEC SANKYO CORPORATION (5329, Shimosuwa-machi Suwa-gu, Nagano 11, 〒3938511, JP)
日本電産サンキョー株式会社 (〒11 長野県諏訪郡下諏訪町５３２９番地 Nagano, 〒3938511, JP)
AKAHANE, Takehiko (5329 Shimosuwa-machi, Suwa-gu, Nagano 11, 〒3938511, JP)
赤羽健彦 (〒11 長野県諏訪郡下諏訪町５３２９番地日本電産サンキョー株式会社内 Nagano, 〒3938511, JP)
TSUKIOKA, Yasuyuki (5329 Shimosuwa-machi, Suwa-gu, Nagano 11, 〒3938511, JP)

International Classes:

H02K37/14

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