发明名称 |
Switch unit with arc-extinguishing units |
摘要 |
A switch suitable for DC applications includes: two fixed conductive contacts with first contact areas; a movable conductive bridge with two second contact areas for being connected to the two first contact areas in the on-status and for being disconnected from the two the first contact areas in the off-status; and two arc-extinguishing units configured to extinguish electric arcs occurring between the first and second contact areas after disconnecting the second contact areas from the first contact areas. First conductive arc-guiding elements extend from each first contact area into the corresponding arc-extinguishing unit and at least one second conductive arc-guiding element extends into the arc-extinguishing units suitably shaped to guide the electric arcs from each of the second contact areas of the movable bridge into the arc-extinguishing units. |
申请公布号 |
US8921728(B2) |
申请公布日期 |
2014.12.30 |
申请号 |
US201113702374 |
申请日期 |
2011.06.07 |
申请人 |
Eaton Electrical IP GmbH & Co. KG |
发明人 |
Lang Volker;Friedrichsen Lutz |
分类号 |
H01H9/44;H01H33/20;H01H9/34;H01H77/10;H01H1/20 |
主分类号 |
H01H9/44 |
代理机构 |
Leydig, Voit & Mayer, Ltd. |
代理人 |
Leydig, Voit & Mayer, Ltd. |
主权项 |
1. A switch suitable for DC applications, comprising:
two fixed conductive contacts with first contact areas; a movable conductive bridge with two second contact areas for being connected to the two first contact areas in the on-status and for being disconnected from the two the first contact areas in the off-status; and two arc-extinguishing units configured to extinguish electric arcs occurring between the first and second contact areas after disconnecting the second contact areas from the first contact areas; wherein first conductive arc-guiding elements extend from each first contact area into the corresponding arc-extinguishing unit and at least one second conductive arc-guiding element extends into the arc-extinguishing units suitably shaped to guide the electric arcs from each of the second contact areas of the movable bridge into the arc-extinguishing units: wherein at least two permanent magnets are suitably arranged adjacent to the first and second contact areas to provide a magnetic field suitable to support the guiding of the electric arc into the arc-extinguishing units; and wherein at least parts of the second arc-guiding element are made of a magnetic permeable material, which are connected to the permanent magnets as a back iron for the permanent magnets to increase the strength of the magnetic field between the permanent magnets. |
地址 |
Schoenefeld DE |