Title:
POSITION DETECTOR AND LINEAR CONVEYANCE DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/281687
Kind Code:
A1
Abstract:
This position detector (5) comprises a position detecting magnet unit (12) installed on each of a plurality of carriers on which movers are mounted, and a position detection unit (22) installed on a conveyance rail on which a stator is mounted. The position detecting magnet unit (12) includes a plurality of magnets (121) disposed side-by-side such that different magnetic poles are alternately arranged along a conveyance direction of the carriers, and a lateral magnetism shielding part (122) installed on the end of the position detecting magnet unit (12) in the conveyance direction of the carriers. The position detection unit (22) includes: a processing substrate (222) disposed in parallel to the conveyance direction of the carriers; a plurality of magnetism detection elements (221) disposed side-by-side along the conveyance direction of the carriers on a front surface of the processing substrate (222) facing the carriers; and a substrate-side magnetism shielding part (223) installed facing the magnetism detection elements on the rear surface, which is the surface of the processing substrate (222) on the reverse side from the front surface of the processing substrate facing the carriers.
Inventors:
TATEI YOSHINAO (JP)
MUSHA TAKESHI (JP)
MUSHA TAKESHI (JP)
Application Number:
PCT/JP2021/025737
Publication Date:
January 12, 2023
Filing Date:
July 08, 2021
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02K41/03
Foreign References:
| JP2015534436A | 2015-11-26 | |||
| JP2013102570A | 2013-05-23 | |||
| JP2011061995A | 2011-03-24 | |||
| JP2004166401A | 2004-06-10 | |||
| JPH0574160U | 1993-10-08 |
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
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