RU2355060C2 - Bobbin - Google Patents

Abstract

FIELD: electricity.

SUBSTANCE: proposed bobbin is meant for use in the fields of electrical engineering, radio engineering, engineering acoustics, in which with the aim of obtaining a magnetic field for interaction with other bobbins, fields from other sources of the magnetic field or transmission of information or energy to outer users, winding of bobbins is carried out with a double-wound pair of wires, located perpendicular to the axis of the bobbin during the coiling of large volumetric coils (fig. 2), or parallel to the axis when coiling flat round coils (fig. 3).

EFFECT: obtaining a magnetic field for interaction with other bobbins, fields from other sources of the magnetic field or transmission of information or energy to outer users.

5 dwg

Description

The invention relates to the field of electrical engineering, radio engineering, electroacoustics.

The use of known bifilar non-inductive coils is limited by the absence of an external magnetic field due to the mutual compensation of the fields of individual turns, which could be used for their connection with other electromagnetic devices and materials. A section of a circular volumetric non-inductive bifilar coil, indicating the directions of rotation of the magnetic fields, is shown in Fig. 1.

Bifilar non-induction coil windings are used to create non-inductive resistors in radio engineering devices [see Volgov V.A. "Details and components of electronic equipment." - M.: Energy, 1977 p.88.]. US Patent No. 3,610,971 of 10/10/1971 describes the use of bifilar non-induction winding for obtaining antigravity for experimental purposes.

The proposed bifilar coil can be used to generate magnetic pulses of any shape and duration, eliminate mutual induction between the windings in transformers, between the stator and rotor windings in electric motors, between the current collector and magnetizing windings in electric generators, increase broadband and eliminate unwanted resonances in electronic devices, including in electrodynamic loudspeakers.

The essence of the invention, as a technical solution, is a bifilar coil, an essential feature of which is a method for arranging a bifilar pair of wires to create an external total magnetic field that can transmit information or energy to the surrounding space. A bifilar pair of wires is perpendicular to the axis of the coil in the manufacture of a round volume coil or parallel to the axis of the coil in the manufacture of a round flat coil.

With these winding methods, unidirectional total magnetic fields are created at the round volume coil, from the turns of wire with the same current direction, along the outer and inner sides of the coil, and at the round flat coil - unidirectional total magnetic fields along both its sides.

Figure 2 presents a schematic representation of the device of a round surround coil, with which the proposed method is implemented.

Designations in the drawings:

1 - section of a wire of a bifilar pair with a current directed from the observer;

2 - section of a wire of a bifilar pair with a current directed to the observer;

3 - the direction of rotation of the magnetic field around the conductor with current;

4 - direction of the magnetic field in the core;

5 - section of the wire of the secondary coil.

As can be seen in figure 2, the magnetic fields from the turns of a bifilar pair of wires, with the same directional currents, add up and can transfer energy to the core or other windings, while the non-inductive nature of the coil is preserved.

Figure 3 presents a variant of a flat round bifilar coil forming external fields along its planes.

Figure 4 and figure 5 presents the options for a transformer using a bifilar coil as a primary winding and an inductive coil as a secondary. With this method of energy transfer, there is no effect of the secondary winding current on the current in the primary, since the magnetic flux generated by the secondary winding excites currents in the primary bifilar pair that are mutually compensated.

The winding of a round coil can be carried out both by a bifilar pair and by a single wire in layers, with the corresponding counter inclusion of the first and second layers. Calculation of the magnetic fields of bifilar coils is carried out in accordance with the rules adopted in electrodynamics.

Claims (1)

The coil, characterized in that it creates a unidirectional magnetic field on both sides of the coil, while winding the coil is carried out by a bifilar pair of wires located perpendicular to the axis of the circular volume coil or parallel to the axis of the circular flat coil.

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