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    • 1. 发明授权
    • Thermally isolating hermetic electrical feed-through
    • 热绝缘密封电气馈通
    • US09300124B2
    • 2016-03-29
    • US13745575
    • 2013-01-18
    • Thomas J. Restis
    • Thomas J. Restis
    • H01J5/00H01J15/00H05K5/06H01R9/05H02G15/04H02G15/013H02G15/02H02G15/08H05B3/02H05B3/06H05B3/56
    • H02G15/043H05B3/06H05B3/56
    • A moisture-sealing and thermally-isolating miniature implement for terminating a mineral-insulated and metal-sheathed cable and connecting it to a power source, includes a hollow contact prong protruding from one axial end of a metallic heat-sink barrel penetrated from an opposite end by the steel sheath of a heating element cable. The heating element contacts a nickel or nickel clad iron pin that penetrates the prong and is welded to its most distal extremity. The sheath is welded to the proximal end of the barrel by a hermetic brazed joint, and the distal end of the barrel is hermetically plugged around the prong by a metalized alumina ceramic seal. The copper pin is connected to the end of the heating element within the sheath and mineral insulation. The barrel is machined to have a series of deep peripheral grooves that act as thermal conductivity reducing chokes.
    • 用于端接矿物绝缘和金属护套电缆并将其连接到电源的防潮密封和隔热微型工具包括从相对的金属散热器筒的一个轴向端部突出的中空接触尖端 由加热元件电缆的钢护套末端。 加热元件接触穿过尖头并被焊接到其最远端的镍或镍复合铁销。 护套通过密封的钎焊接头焊接到筒的近端,并且桶的远端通过金属化的氧化铝陶瓷密封件气密地插入插脚。 铜销在护套和矿物绝缘内连接到加热元件的末端。 机筒被加工成具有一系列深的周向槽,其作为导热率降低的扼流圈。