Invention Grant
US07902948B2 Switching device, in particular a power switching device, having two pairs of series-connected switching contacts for interrupting a conducting path
失效
开关装置,特别是功率开关装置,具有用于中断导电路径的两对串联连接的开关触点
- Patent Title: Switching device, in particular a power switching device, having two pairs of series-connected switching contacts for interrupting a conducting path
- Patent Title (中): 开关装置,特别是功率开关装置,具有用于中断导电路径的两对串联连接的开关触点
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Application No.: US12319859Application Date: 2009-01-13
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Publication No.: US07902948B2Publication Date: 2011-03-08
- Inventor: Carsten Lüders
- Applicant: Carsten Lüders
- Applicant Address: DE Munich
- Assignee: Siemens Aktiengesellschaft
- Current Assignee: Siemens Aktiengesellschaft
- Current Assignee Address: DE Munich
- Priority: DE102008005115 20080114
- Main IPC: H01H9/30
- IPC: H01H9/30 ; H01H67/00 ; H01H67/02 ; H01H63/02 ; H01H1/00 ; H01H9/40 ; H01H33/14 ; H01H33/18 ; H01H33/70

Abstract:
A switching device, in particular a power switching device, has two pairs of series-connected switching contacts for interrupting a conducting path and at least one quenching packet, disposed near the pairs of switching contacts, for quenching the arcs occurring when the conducting path opens. The pairs of switching contacts are arranged such that their opening paths are substantially mutually parallel or antiparallel. The pairs of switching contacts are connected in series such that the same current flowing in both arcs flows spatially in the same direction. The quenching packet is disposed in the area between the opening paths.
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