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Patent Searching and Data


Title:
ELECTROMAGNETIC ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2020/161930
Kind Code:
A1
Abstract:
Provided is an electromagnetic actuator having a novel structure that can solve at least one of the problems of the electromagnetic actuator having the conventional structure. In an electromagnetic actuator 10, coils 52, 54 provided on a stator 14 are arranged on the outer periphery of a moving element 16, and a driving force is exerted on the moving element 16 by an electromagnetic force generated by energization of the coils 52, 54, wherein yoke members 60, 62 surrounding the coils 52, 54 are constituted by a plurality of split yoke members 64, 66, 68, 70, the plurality of split yoke members 64, 66, 68, 70 are fixedly attached to each other by a mold resin 94 filled between the coils 52, 54, and the mold resin 94 is spun to reach the outer peripheral surfaces of the yoke members 60, 62 thereby forming an external resin layer 98.

Inventors:
KOYAMA HIRONORI (JP)
KANAYA TOMOHIRO (JP)
Application Number:
PCT/JP2019/020962
Publication Date:
August 13, 2020
Filing Date:
May 27, 2019
Export Citation:
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Assignee:
SUMITOMO RIKO CO LTD (JP)
International Classes:
H02K33/02; F16F15/02; H02K1/04
Foreign References:
JP2018098984A2018-06-21
JP2000224798A2000-08-11
Attorney, Agent or Firm:
KASAI & NAKANE INTERNATIONAL PATENT FIRM et al. (JP)
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