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Patent Searching and Data


Title:
LINEAR MOTOR
Document Type and Number:
WIPO Patent Application WO/2018/167970
Kind Code:
A1
Abstract:
The present invention is provided with: paired movable elements (2) having cores (21) each of which include a plurality of tooth parts (23) and having windings (24) wound around the tooth parts (23); and a stator (301) in which magnetic bodies (31) each formed from a layered structure and permanent magnets (32) are alternately arranged. The paired movable elements (2) are disposed to oppose each other with the stator (301) interposed therebetween, and a gap G is provided between the paired movable elements (2) and the stator (301). The paired movable elements (2) are disposed plane-symmetrically via the stator (301) or are disposed such that in the case where the centroid of one of the paired movable elements (2) makes 180° rotational movement with respect to a rotational axis that passes through the centroid of the cross-section, of the stator (301), perpendicular to a travelling direction of the paired movable elements (2), and extends in the travelling direction of the paired movable elements (2), the centroid of the one of the paired movable elements (2) overlaps with the centroid of the other of the paired movable elements (2). The permanent magnets (32) are magnetized in a travelling direction of the paired movable elements (2), and the magnetized surfaces of the permanent magnets (32) adjacent to each other are disposed so as to oppose each other over a certain interval such that the same poles oppose each other.

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Inventors:
INAGAKI RYUTARO (JP)
WAKAYAMA HIROSHI (JP)
MOTOYOSHI KENTA (JP)
YAMAGUCHI SHINICHI (JP)
UCHIMURA TOMOYA (JP)
Application Number:
PCT/JP2017/011033
Publication Date:
September 20, 2018
Filing Date:
March 17, 2017
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02K41/03
Foreign References:
JP2006054972A2006-02-23
JP2013055816A2013-03-21
JP2013176269A2013-09-05
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
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