Invention Grant
- Patent Title: Stepping motors with small step intervals
- Patent Title (中): 步进电机小步距
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Application No.: US13124851Application Date: 2009-09-08
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Publication No.: US08970083B2Publication Date: 2015-03-03
- Inventor: Steve Zong-Ping Zhao
- Applicant: Steve Zong-Ping Zhao
- Applicant Address: US NY East Aurora
- Assignee: Moog Inc.
- Current Assignee: Moog Inc.
- Current Assignee Address: US NY East Aurora
- Agency: Phillips Lytle LLP
- International Application: PCT/US2009/005038 WO 20090908
- International Announcement: WO2011/031250 WO 20110317
- Main IPC: H02K21/00
- IPC: H02K21/00 ; H02K37/20 ; H02K37/04

Abstract:
An improved motor (90) broadly including a first member (30) and a second member (20) mounted for movement relative to one another. The first member has a plurality of poles (32) spaced substantially equidistantly. The second member has a plurality of arms (22). Each arm includes a plurality of fingers (27), a permanent magnet (29), and a coil (25). The fingers are arranged such that their distal end generally faces toward the poles on the first member. Each permanent magnet has a width that is greater than the pole spacing. Each arm is associated with one of a number of phases. The fingers of the arms within a particular phase are arranged such that they simultaneously align with respective poles when the first and second members are in one position relative to one another.
Public/Granted literature
- US20110198950A1 STEPPING MOTORS WITH SMALL STEP INTERVALS Public/Granted day:2011-08-18
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