Title:
COIL BOBBIN AND ELECTROMAGNET DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/051433
Kind Code:
A1
Abstract:
The objective of the invention is to reduce movable abrasion powder produced due to movement between a coil bobbin 5 of an electromagnet device and a movable core 6 thereof. An electromagnet device comprises: a coil bobbin 5 around which a coil 4 is wound and which is constituted by non-magnetic substance; and a movable core 6 which is disposed in a cylindrical hollow part of the coil bobbin 5 and which can be moved by excitation of the coil 4. Further, a first protrusion 11A1 and a second protrusion 11A2 are formed, on an inner peripheral surface of the cylindrical hollow part, within respective ranges between both open ends of the coil bobbin 5 and a midway point thereof, the first protrusion 11A1 and second protrusion 11A2 being opposed to parts of a lower half of the movable core 6, whereby the movable core 6 is supported by the first protrusion 11A1 and second protrusion 11A2 during the movement of the movable core 6.
Inventors:
TAKEMOTO TOMOHIKO (JP)
HYAKUTA YASUHISA (JP)
YAMAMATSU YUMA (JP)
HYAKUTA YASUHISA (JP)
YAMAMATSU YUMA (JP)
Application Number:
PCT/JP2014/005010
Publication Date:
April 07, 2016
Filing Date:
September 30, 2014
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H01F7/121; H01F7/16
Foreign References:
| JP2003172469A | 2003-06-20 |
Attorney, Agent or Firm:
INABA, Tadahiko et al. (JP)
Tadahiko Inaba (JP)
Tadahiko Inaba (JP)
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