INDUCTANCE COIL Russian patent published in 2015 - IPC H01F17/02 H01F5/02 H01F27/29 

FIELD: electricity.

SUBSTANCE: invention is related to electric engineering and may be used in frequency filters for wireless devices for various applications, for example, in harmonic filters of powerful high-frequency radio transmitters. An inductance coil comprises a layer cylindrical wire-spaced winding placed at a built-up frame consisting of two side panels placed in parallel and connected by strips made as rectangular bars with slots for the wire. The winding is made by a non-insulated wire of a circular section as N windings laid in the respective slots in the strips with the formation of noncircular turns connected in parallel. Each turn of each winding has M faces, where M is a number of strips with two diametrically opposed strips of an extended length, which are placed in the same plane and protruded outside the side panels and have openings for fixation. The side panels and strips are made of a heat-resistant dielectric. The remaining M - 2 strips also have an extended length and protrude outside the side panels. All the strips and side panels have a metal coating at points of their connection and ensure the possibility of their fixing together. Each side panel has N openings with the metal coating, which are interconnected and coupled to an auxiliary contact by means of a double-sided metal coating of the side panels and intended for wire fixing at the beginning and ending of each winding by soldering.

EFFECT: expansion of operational functionality.

3 dwg