发明授权
- 专利标题: Vacuum switch and vacuum switchgear
- 专利标题(中): 真空开关和真空开关柜
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申请号: US12494674申请日: 2009-06-30
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公开(公告)号: US08227720B2公开(公告)日: 2012-07-24
- 发明人: Kenji Tsuchiya , Takashi Sato , Miki Yamazaki , Masato Kobayashi , Hiroyuki Ozawa
- 申请人: Kenji Tsuchiya , Takashi Sato , Miki Yamazaki , Masato Kobayashi , Hiroyuki Ozawa
- 申请人地址: JP Tokyo
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Brundidge & Stanger, P.C.
- 优先权: JP2008-169775 20080630; JP2008-202605 20080806
- 主分类号: H01H33/66
- IPC分类号: H01H33/66
摘要:
A vacuum switch has a fixed electrode, a movable electrode facing the fixed electrode, an insulating cylinder, end plates covering both axial ends of the insulating cylinder, a vacuum chamber internally accommodating the fixed electrode and the movable electrode, and a solid isolation resin molded on the outside of the vacuum chamber, first coil springs, each of which is disposed around the outer circumference of one end plate while touching the end plate and an end face of the insulating cylinder, and second coil springs, each of which is united to one of the first springs and disposed around the outer circumference of the insulating cylinder so as to cover the angular part of the end face of the insulating cylinder, and the end plates, the end faces of the insulating cylinder, and the first and second coil springs are electrically connected.
公开/授权文献
- US20100000973A1 VACUUM SWITCH AND VACUUM SWITCHGEAR 公开/授权日:2010-01-07