Invention Grant
- Patent Title: Opening and closing device
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Application No.: US15100684Application Date: 2014-09-11
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Publication No.: US10090126B2Publication Date: 2018-10-02
- Inventor: Masayuki Kakio , Munetaka Kashiwa , Shintaro Yamada , Toshihiro Matsunaga
- Applicant: Mitsubishi Electric Corporation
- Applicant Address: JP Chiyoda-ku
- Assignee: Mitsubishi Electric Corporation
- Current Assignee: Mitsubishi Electric Corporation
- Current Assignee Address: JP Chiyoda-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2013-268771 20131226
- International Application: PCT/JP2014/074073 WO 20140911
- International Announcement: WO2015/098200 WO 20150702
- Main IPC: H01H50/30
- IPC: H01H50/30 ; H01H33/42 ; H01H33/666 ; H01H33/38 ; H01H50/22 ; H01H50/64 ; H01H1/50 ; H01H3/60

Abstract:
A switchgear includes a stationary contact, a movable contact able to be shifted between a closed position and an opened position, an electromagnetic actuator able to generate power for shifting the movable contact, the electromagnetic actuator including a stator and a movable element, and a power transmission unit able to shift the movable contact, and to press the movable contact against the stationary contact. The power transmission unit includes a drive unit-side spring bearing portion able to be shifted together with the movable element, a contact-side spring bearing portion to be opposed to the drive unit-side spring bearing portion, and able to be shifted together with the movable contact, and a spring member provided between the drive unit-side spring bearing portion and the contact-side spring bearing portion.
Public/Granted literature
- US20160300678A1 OPENING AND CLOSING DEVICE Public/Granted day:2016-10-13
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