Siemens Aktiengesellschaft

Jurgen Kaiser

Hans Kinzler

Rudolf Kerler

A toroidal core coil winding appliance is provided including a toroidal core mount, a wire feed and a conveyor means for shaping and turning wire loops through the toroidal core opening which further includes at least two stationary conveyor sheaves and a plurality of deflection rollers whose rotational axes are arranged parallel to one another and preferably perpendicular to the rotational axis of the toroidal core. Flexible conveyor belts are guided on the conveyor sheaves with the assistance of the deflection rollers, these flexible conveyor belts being pressed against one another over longer sections of the wire loop paths. The wire loops are clamped between the conveyor belts and are drawn through the toroidal core openings. After the acceptance of a defined wire length in the conveyor means, the wire feed is stopped and, at the same time, the clamped wire end is deflected out of the conveying plane of the wire loop.

Toroidal core coil winding appliance

A radio interference suppression choke with a low leakage field, includes a ring core formed of magnetically soft material, a plurality of windings each formed of a respective continuous wire wound on the core in separate respective series-connected winding sections, the windings having mutually adjacent transition regions, and an insulating cap disposed on the core separating the windings at least at the mutually adjacent transition regions thereof.

Radio interference suppression choke with a low leakage field

Method of forming windings on a closed core, preferably a ring core, for electric coils which includes guiding by action of a magnetic field a magnetizable needle fastened to a starting end of a winding wire along a closed continuous travel path extending partly through an aperture in the core so as to wind the winding wire on the core, the closed continuous travel path decreasing in length with duration of winding of the winding wire on the core.

Growing community of inventors

Wuppertal, Germany

Jurgen Kaiser