发明名称 Nozzle fastening for electrical switching apparatus
摘要 An electrical switching apparatus is disclosed with a moveable insulating nozzle for blowing an arc. According to the invention, the insulating nozzle is connected in an interlocking and force-fitting manner to at least one moveable component part of the switching apparatus by means of a clamping device and without a screw connection. Exemplary embodiments relate, inter alia, to: a clamping hold of the insulating nozzle on the moving buffer cylinder and/or at the opposite end on a part to be moved, in particular a moveable shielding electrode or an auxiliary gear mechanism for a contact system, which is driven on both sides. Advantages include: simple fitting of the insulating nozzle, small physical volume of the clamping device; precise coaxial fixing of the insulating nozzle in relation to the switch axis.
申请公布号 US2007295693(A1) 申请公布日期 2007.12.27
申请号 US20070879508 申请日期 2007.07.18
申请人 ABB TECHNOLOGY AG 发明人 SAXL DAVID;VESTNER MARKUS;NORDSTROM THOMAS;BORG TOMAS;STROM TOMAS;HUNGER OLAF
分类号 H01H33/00 主分类号 H01H33/00
代理机构 代理人
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