Invention Grant
US09269507B2 Spring load adjustment structure of contact device and spring load adjustment method of contact device
有权
接触装置的弹簧负载调整结构和接触装置的弹簧负载调整方法
- Patent Title: Spring load adjustment structure of contact device and spring load adjustment method of contact device
- Patent Title (中): 接触装置的弹簧负载调整结构和接触装置的弹簧负载调整方法
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Application No.: US14390326Application Date: 2013-04-08
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Publication No.: US09269507B2Publication Date: 2016-02-23
- Inventor: Hideki Enomoto , Hirokazu Asakura , Tetsuya Yamada , Ritsu Yamamoto , Naoki Seki , Toshiyuki Shima , Naoki Inadomi , Yoji Ikeda
- Applicant: Panasonic Intellectual Property Management Co., Ltd.
- Applicant Address: JP Osaka
- Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: JP2012-088838 20120409
- International Application: PCT/JP2013/002393 WO 20130408
- International Announcement: WO2013/153799 WO 20131017
- Main IPC: H01H9/20
- IPC: H01H9/20 ; H01H1/50 ; H01H1/54 ; H01H50/54 ; H01H49/00 ; H01H1/20 ; H01H50/02

Abstract:
A contact device includes: fixed terminals; a movable contact maker; a pressing spring; an adjustment plate that comes into contact with an upper face of the movable contact maker; a holding portion; a movable shaft; and an electromagnet block. The holding portion is divided into first and second holding portions that are separated from each other. The first and second holding portions are electrically connected to each other via only the adjustment plate, due to the adjustment plate being sandwiched by a first side plate of the first holding portion and a second side plate of the second holding portion. The adjustment plate is moved in extending and contracting directions of the pressing spring, and the adjustment plate and each of the first and second side plates are subjected to resistance welding at a position at which pressing force of the pressing spring is a predetermined value.
Public/Granted literature
- US20150077202A1 SPRING LOAD ADJUSTMENT STRUCTURE OF CONTACT DEVICE AND SPRING LOAD ADJUSTMENT METHOD OF CONTACT DEVICE Public/Granted day:2015-03-19
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