Title:
CONTACT DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/248739
Kind Code:
A1
Abstract:
The present disclosure addresses the problem of preventing the reliability of a welding detection from decreasing. A contact device (10) comprises an armature (32), a fixed contact (41), a moving contact (42), and a photo-interrupter (6). The armature (32) is displaced in accordance with a magnetic field generated by the current flowing through a coil (31). The moving contact (42) moves in accordance with the displacement of the armature (32) between a closed position in which the moving contact (42) makes contact with the fixed contact (41) and an open position in which the moving contact (32) is separated from the fixed contact (41). The photo-interrupter (6) has a light emitting element and a light receiving element. The photo-interrupter (6) detects whether the fixed contact (41) and the moving contact (42) make contact with each other or not.
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| JP2013196772 | ELECTROMAGNETIC RELAY |
Inventors:
TAKENAKA KIMITO
KATO YOSHIMASA
OKUDA AKIHIRO
SAEKI MAKOTO
KATO YOSHIMASA
OKUDA AKIHIRO
SAEKI MAKOTO
Application Number:
PCT/JP2023/020218
Publication Date:
December 28, 2023
Filing Date:
May 31, 2023
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01H50/08; H01H50/54
Foreign References:
| CN108321028A | 2018-07-24 | |||
| JP2018032583A | 2018-03-01 | |||
| JP2003178662A | 2003-06-27 | |||
| CN204332772U | 2015-05-13 | |||
| JP2015115248A | 2015-06-22 | |||
| JPS55109237U | 1980-07-31 | |||
| US5914664A | 1999-06-22 |
Attorney, Agent or Firm:
HOKUTO PATENT ATTORNEYS OFFICE (JP)
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