Title:
LINEAR MOTOR
Document Type and Number:
WIPO Patent Application WO/2020/261809
Kind Code:
A1
Abstract:
The present invention addresses the problem of achieving both a decrease in pulsation and an increase in propulsion in a linear motor with a 6n teeth structure. For this purpose, a linear motor according to the present invention is provided with: a first mover for arranging and holding a plurality of permanent magnets in a longitudinal direction; a first stator having 6n teeth that are arranged in the longitudinal direction so as to oppose the first mover and 6n windings that are wound on the respective teeth; a second mover for arranging and holding a plurality of permanent magnets in a longitudinal direction; a second stator having 6n teeth that are arranged in the longitudinal direction so as to oppose the second mover and 6n windings that are wound on the respective teeth; and a bonding member for bonding the first mover and the second mover disposed parallel to each other. The permanent magnets opposing each other in the first mover and the second mover are disposed with a phase difference of π/2 in the moving direction of the two movers, and electrical currents with a phase difference of (1+6m)π/3 or (2+6m)π/3 are supplied to the windings opposing each other in the first stator and the second stator.
More Like This:
| JP6303284 | Linear motor |
| WO/2019/017387 | ACTUATOR |
Inventors:
AOYAMA YASUAKI (JP)
NAKATSUGAWA JUNNOSUKE (JP)
NORIDUKI KUNIHIKO (JP)
KOSEKI TAKAFUMI (JP)
AHMED SALMAN (JP)
MITSUI YUTO (JP)
NAKATSUGAWA JUNNOSUKE (JP)
NORIDUKI KUNIHIKO (JP)
KOSEKI TAKAFUMI (JP)
AHMED SALMAN (JP)
MITSUI YUTO (JP)
Application Number:
PCT/JP2020/019648
Publication Date:
December 30, 2020
Filing Date:
May 18, 2020
Export Citation:
Assignee:
HITACHI LTD (JP)
UNIV TOKYO (JP)
UNIV TOKYO (JP)
International Classes:
H02K41/03
Foreign References:
| JPH11262236A | 1999-09-24 | |||
| JP2016046999A | 2016-04-04 | |||
| JP2015008555A | 2015-01-15 |
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
Download PDF: