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1. 发明授权

US4317979A High current high frequency current transformer 失效
标题翻译：大电流高频电流互感器
公开(公告)号：US4317979A
公开(公告)日：1982-03-02
申请号：US154692
申请日：1980-05-30
申请人： William E. Frank , Erwin A. Billman
发明人： William E. Frank , Erwin A. Billman
IPC分类号： H01F38/28 , H05B6/06 , H05B6/10 , H01F40/06
CPC分类号： H05B6/101 , H01F38/28 , H05B6/06
摘要： In an induction heating apparatus, direct sensing of the high frequency high power current flowing in the tank circuit to load the induction coils, is obtained with a coil current measuring transformer comprising one of the power current busses leading to the induction coil and a secondary winding of many ampere-turns wound around said one bus. The bus is given a half-loop shape to accommodate the secondary winding. The secondary winding is made of a magnetic core wound with many turns of Litz wire. Cooling tubes are cemented outside the wound secondary with conductive cement to form a heat sink with a circulation of cooling medium through the tube. The cement is divided in two parts separated by gaps to prevent circulation of induced currents. A cooling tube is installed between the core and wound wire to provide an internal heat sink.
摘要翻译：在感应加热装置中，通过线圈电流测量变压器获得在储能电路中流动以加载感应线圈的高频大功率电流的直接感测，该线圈电流测量变压器包括通向感应线圈的一个电力总线和二次绕组在一辆公共汽车上缠绕许多安培圈。总线被给予半环形以容纳次级绕组。次级绕组由缠绕有许多匝线的磁芯制成。冷却管用导电水泥胶合在缠绕次级外面，以形成具有通过管的冷却介质循环的散热器。水泥分为两部分，间隙分开，以防止感应电流循环。在芯线和绕线之间安装冷却管，以提供内部散热器。

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