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    • 4. 发明申请
    • PROXIMITY SWITCH
    • 接近开关
    • WO2013101628A1
    • 2013-07-04
    • PCT/US2012/070798
    • 2012-12-20
    • GENERAL EQUIPMENT AND MANUFACTURING COMPANY, INC., D/B/A TOPWORX, INC.
    • LAFOUNTAIN, Robert, LynnMERRIFIELD, Gregory, Curtis
    • H01H36/00H01H9/04
    • H01H36/0073H01H9/04H01H36/00H01H2231/044
    • Proximity switches are disclosed that preferably are provided in a hermetically sealed unit that can be used in harsh environments and under significant pressures, such as underwater and in nuclear power facilities, without having any parts that would require replacement or periodic maintenance. The proximity switches are preferably switches actuated by physical movement of a contact in response to changing magnetic forces. The switches are preferably disposed in a body tube optionally including a hermetic seal assembly to seal an open end of the body tube and/or a ferrule that prevents electrical wires attached to the switch inside the body tube from being pulled away from the switch. Further, the switches preferably maintain a contact pressure between electrical contacts sufficient to withstand acceleration seismic testing of 10g with no contact discontinuity.
    • 公开了接近开关,其优选地设置在密封的单元中,其可以在恶劣环境中和在显着的压力下使用,例如在水下和核电设施中,而不需要任何需要更换或定期维护的部件。 接近开关优选地是响应于变化的磁力而由触点的物理移动而致动的开关。 开关优选地设置在主体管中,任选地包括气密密封组件以密封体管的开口端和/或套圈,其防止附接到体管内的开关的电线从开关拉开。 此外,开关优选地保持电触头之间的接触压力足以承受10g的加速度地震测试,而没有接触不连续性。