Title:
ROTARY DRIVE SOURCE FOR ELECTRIC ACTUATOR AND ELECTRIC ACTUATOR
Document Type and Number:
Japanese Patent JP2018093590
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a rotary drive source for an electric actuator capable of achieving compactness in an axial direction, and an electric actuator.SOLUTION: A position detection structure includes: a pulsar ring on a rotation side having a magnetized portion in which N and S poles are alternately disposed along the circumferential direction on an inner peripheral surface side; and a detection sensor on a fixed side which is closely opposed to the magnetized portion of the pulsar ring in the radial direction. The pulsar ring of the position detection structure is axially overlapped on an inner diameter side of one axial end portion of a stator coil.SELECTED DRAWING: Figure 1
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Inventors:
MATTO TAKUSHI
USHIDA KIMITO
KAWAI MASAHIRO
KATO AKIO
USHIDA KIMITO
KAWAI MASAHIRO
KATO AKIO
Application Number:
JP2016233432A
Publication Date:
June 14, 2018
Filing Date:
November 30, 2016
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD
International Classes:
H02K11/215; F16D7/02; G01D5/245; H02K7/116
Domestic Patent References:
| JP2016093009A | 2016-05-23 | |||
| JPS62195534U | 1987-12-12 |
Foreign References:
| CN104505978A | 2015-04-08 |
Attorney, Agent or Firm:
Kunihiko Shiromura
Tsuyoshi Kumano
Tsuyoshi Kumano