JP2001035264A - Magnet wire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent insulating coated conductors from being loosened without deteriorating the flexibility by arranging a plurality of insulating coated conductors in parallel, and by winding at least two linear members around the circumference thereof mutually in directions opposite to bundle the conductors. SOLUTION: A number of insulating coated conductors 5 formed by applying an insulating coating, such as enamel to the surface of a conductor consisting of copper, is arranged in parallel and laminated into multilayer form. A linear member such as cotton yarn 8 is wound on the circumference of the laminated insulating coated conductors 5 to bundle them. The linear member is wound closely at both ends of the insulating coated conductors 5, to prevent the loosening, whereby a magnet wire 9 is constituted. The loosening of the insulating coated conductors 5 is prevented to prevent the deterioration of the flexibility, whereby the workability in wiring and connecting can be improved. Since two cotton yarns 8 are wound in opposite directions, the force by the fastening of the cotton yarn 8 can be applied uniformly, so that the magnetic wire 9 can be prevented from curving.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnet wire which is suitable for a coil component such as a deflection yoke and can suppress an increase in resistance due to an inductance and a skin effect as compared with a litz wire. The present invention relates to a structure for preventing the strands from being separated without lowering the wire.

[0002]

2. Description of the Related Art In recent years, as the frequency of electric and electronic devices has been further increased, litz wires, which are formed by twisting a plurality of insulated conductors as strands, have been frequently used in order to reduce the skin effect. However, for example, Japanese Patent Laid-Open No. 63-1
As shown in Japanese Patent Publication No. 02111 or the like, a magnet wire capable of suppressing an increase in resistance due to an inductance and a skin effect and a variation in impedance due to a change in wire length as compared with a litz wire, that is, as shown in FIG. Insulating film conducting wire 3 in which insulating film 2 is applied to conducting wire 1
Are arranged in parallel in a number of layers, and are laminated in multiple layers, and a structure in which the periphery is covered with a resin sheath 4 has been applied.

[0003]

As described above, the conventional magnet wire is provided with a resin sheathing 4 for each of the insulating film conductors 3 in order to facilitate the alignment winding and to prevent the insulating film conductors 3 from coming apart. Since it covers the surroundings, there is a problem that the flexibility is reduced by the resin exterior 4 and the workability of the arrangement / connection and the heat dissipation are deteriorated.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and provides a magnet wire capable of preventing an insulating film conductor from being separated without lowering flexibility. The purpose is to do so.

[0005]

According to a first aspect of the present invention, there is provided a magnet wire in which a plurality of insulating film conductors are arranged in parallel, and a linear member is wound around and bundled.

According to a second aspect of the present invention, there is provided a magnet wire according to the first aspect, wherein at least two linear members are wound in opposite directions.

According to a third aspect of the present invention, there is provided a magnet wire according to the first or second aspect, wherein an insulating film conductor is used as the linear member.

According to a fourth aspect of the present invention, there is provided a magnet wire according to the first or second aspect, wherein a cotton thread is used as the linear member.

According to a fifth aspect of the present invention, there is provided the magnet wire according to any one of the first to fourth aspects, wherein the linear member is prevented from being unwound every required length of the magnet wire.

A magnet wire according to a sixth aspect of the present invention is the magnet wire according to the fifth aspect, wherein the unwinding prevention is performed by bonding.

A magnet wire according to a seventh aspect of the present invention is the magnet wire according to the fifth aspect, wherein the unwinding prevention is performed with a restraint.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view showing a configuration of a magnet wire according to Embodiment 1 of the present invention, FIG. 2 is a perspective view showing a configuration of the magnet wire in FIG. 1, and FIG. 3 shows an example of prevention of unwinding of the magnet wire in FIG. FIG. 4 is a perspective view showing a step of winding the linear member of the magnet wire in FIG. 1, FIG. 5 is a view showing a state of the linear member wound by the step shown in FIG. 4, and FIG. FIG. 2 is a cross-sectional view illustrating a configuration of the magnet wire according to the first embodiment of the present invention which is different from FIG.

In FIG. 1, reference numeral 5 denotes an insulating film conductor formed by applying an insulating film 7 of, for example, enamel on the surface of a conductor 6 made of copper or the like. Reference numeral 8 denotes a cotton thread as a linear member that is bundled by winding around the multi-layered insulating film conductor 5, and is prevented from being unwound by tightly winding both ends as shown in FIG. The magnet wire 9 is constituted by these 5 to 8.

Next, a method of manufacturing the magnet wire 9 according to the first embodiment configured as described above will be described with reference to the drawings. First, the magnet wire manufacturing apparatus is configured as shown in FIG.
Are wound and stored, respectively.
1 is each hole 11a formed at a predetermined interval,
This is a first guide jig for guiding the insulating film conductors 5 respectively derived from the respective first bobbins 10.

A second guide jig 12 converges and guides each of the insulating film conductors 5 guided through each hole 11a of the first guide jig 11 by a hole 12a formed substantially at the center. A second reference numeral 13 is provided at a predetermined distance from the second guide jig 12 and takes up and stores the magnet wire 9.
Bobbins 14 and 15 are disposed between the second guide jig 12 and the second bobbin 13 so as to face each other.
The first and second winding jigs, which are driven to rotate in the opposite directions to each other, around each of the insulating film conductors 5 focused by
6 is attached to these two winding jigs 14 and 15, respectively.
This is a spool in which the cotton thread 8 is wound and stored.
A magnet wire manufacturing apparatus 17 is constituted by 0 to 16.

In the magnet wire manufacturing apparatus 17 configured as described above, first, the tips of the insulating film conductors 5 housed from the respective first bobbins 10 are respectively taken out, and the first
After passing through each hole 11a of the guide jig 11 of FIG.
The guide jig 12 is focused by passing through the hole 12a of the guide jig 12 and guided to the position of the second bobbin 13 and attached. Next, the leading ends of the cotton yarns are taken out from both the winding frames 16 and tied to the bundled insulating film conductors 5 and the first and second winding jigs 14 and 15 are rotated, as shown in FIG. Is wound tightly to prevent unwinding at one end.

Next, when the rotation of the second bobbin 13 is started, the rotation of the first and second winding jigs 14 and 15 and the winding of the second bobbin 13 causes each insulating film conductor 5 to be wound.
As a result, both cotton yarns 8 pulled out from both yarn winding frames 16 are wound in opposite directions along the surface of each insulating film conductor 5 at a predetermined pitch as shown in FIG. When the desired amount has been wound, the second bobbin 13 is stopped, and then the first and second winding jigs 14 and 15 are rotated by a predetermined number of rotations and stopped. Then, the cotton yarn 8 is densely wound at this position, and is prevented from being unwound at the other end, and the magnet wire 9 is formed between the cotton yarn 8 and the unwound at the one end.

As described above, according to the first embodiment, a plurality of the insulating film conductors 5 are arranged in parallel, and the cotton thread 8 is wound around the conductors and bundled, so that the flexibility is reduced at low cost. In addition, it is possible to prevent the insulation-coated conductive wire 5 from coming apart, and to prevent the flexibility from lowering, thereby improving the workability of arrangement and connection. In addition, since the two cotton yarns 8 are wound in opposite directions to each other, the degree of force applied by the tightening of the cotton yarns 8 is not biased to one side.
The bending of the magnet wire 9 is prevented.

In the above-described configuration, the case where the unwinding is prevented at both ends of the entire length of the magnet wire 9 has been described. The magnet wires 9 are divided according to the required length to be arranged and connected, and also shown in FIG. As described above, both ends are tied or bonded (not shown) for each section, so that unwinding can be more reliably prevented. Further, in the above-described configuration, the case where the cotton yarn 8 is used as the linear member for bundling the insulating film conductor 5 has been described. However, the present invention is not limited to this, and other yarns may be used. As described above, one of the insulating film conductors 5 may be used for bundling, and there is no need to separately prepare another member.

[0020]

As described above, according to the first aspect of the present invention, since a plurality of insulating film conductors are arranged in parallel and a linear member is wound around and bundled, the flexibility is reduced. It is possible to provide a magnet wire that can prevent the insulation-coated conductive wire from being separated without being separated.

According to a second aspect of the present invention, in the first aspect, at least two linear members are wound in opposite directions to each other, so that insulation can be performed without reducing flexibility. It is possible to provide a magnet wire capable of preventing not only bending but also bending of the film conductor.

According to the third aspect of the present invention, since the insulating film conductor is used as the linear member in the first or second aspect, it is possible to easily prevent the insulating film conductor from separating. A magnet wire can be provided.

According to a fourth aspect of the present invention, in the first or second aspect, since the cotton member is used as the linear member, it is possible to prevent the insulating film conductor from being separated at low cost. Can be provided.

According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the linear member is prevented from being unwound for each required length of the magnet wire, so that the unwound can be more reliably prevented. A possible magnet wire can be provided.

According to the sixth aspect of the present invention, since the unwinding prevention is performed by bonding in the fifth aspect, it is possible to provide a magnet wire capable of easily and surely preventing the unwinding.

According to the seventh aspect of the present invention, in the sixth aspect, since the unwinding prevention is performed with a restraint, it is possible to provide a magnet wire capable of easily and surely preventing the unwinding.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a configuration of a magnet wire according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a configuration of a magnet wire in FIG.

FIG. 3 is a perspective view showing an example of prevention of unwinding of a magnet wire in FIG. 1;

FIG. 4 is a perspective view showing a step of winding a linear member of a magnet wire in FIG. 1;

FIG. 5 is a view showing a state of a linear member wound by the process shown in FIG. 4;

FIG. 6 is a cross-sectional view showing a configuration of the magnet wire according to the first embodiment of the present invention which is different from FIG. 1;

FIG. 7 is a cross-sectional view showing a configuration of a conventional magnet wire.

[Explanation of symbols]

5 Insulation film conductor, 6 conductor, 7 insulation film, 8 cotton thread, 9 magnet wire.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yuji Nakahara 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Mitsui Electric Co., Ltd. (72) Michio Ogasa 2-3-2 Marunouchi, Chiyoda-ku, Tokyo 3 Rishi Electric Co., Ltd. (72) Inventor Akira Ishimori 2-3-2 Marunouchi, Chiyoda-ku, Tokyo F-term (reference) 5G309 CA12

Claims (7)

[Claims] 1. A magnet wire comprising a plurality of insulating-film conducting wires arranged in parallel and a linear member wound around and bundled therearound. 2. The magnet wire according to claim 1, wherein at least two linear members are wound in opposite directions. 3. The magnet wire according to claim 1, wherein the linear member is an insulating film conductive wire. 4. The magnet wire according to claim 1, wherein the linear member is a cotton thread. 5. The magnet wire according to claim 1, wherein the linear member is prevented from being unwound every required length. 6. The magnet wire according to claim 5, wherein the unwinding prevention is performed by bonding. 7. The magnet wire according to claim 5, wherein unwinding prevention is performed by binding.