Invention Grant
- Patent Title: Multihead-type coreless linear motor
- Patent Title (中): 多头型无芯线性电机
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Application No.: US12854173Application Date: 2010-08-11
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Publication No.: US08427015B2Publication Date: 2013-04-23
- Inventor: Toshiyuki Hoshi
- Applicant: Toshiyuki Hoshi
- Applicant Address: JP Kitakyushu-Shi
- Assignee: Kabushiki Kaisha Yaskawa Denki
- Current Assignee: Kabushiki Kaisha Yaskawa Denki
- Current Assignee Address: JP Kitakyushu-Shi
- Agency: Ditthavong Mori & Steiner, P.C.
- Priority: JP2009-189574 20090818; JP2010-022597 20100203
- Main IPC: H02K41/03
- IPC: H02K41/03

Abstract:
A multihead-type coreless linear motor includes a permanent field magnet having P permanent magnets that are arranged such that different magnetic poles appear alternately, and an armature having M armature coils that are closely wounded and connected in three phases. One of the armature and the permanent field magnet is configured as a moving part and the other is configured as a stator. A plurality of moving parts are arranged on the same stator and are driven separately. In this multihead-type coreless linear motor, the plurality of moving parts includes a large-thrust moving part and a small-thrust moving part that are different in relationship with the stator, the relationship being determined by the number of magnetic poles P of the permanent magnets and the number of armature coils M.
Public/Granted literature
- US20110043054A1 MULTIHEAD-TYPE CORELESS LINEAR MOTOR Public/Granted day:2011-02-24
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