JPH099282A - Degaussing coil - Google Patents

Abstract

PURPOSE: To provide a degaussing coil capable of reusing the copper wire of the degaussing coil by eliminating the influence of the adhesive of an electrical insulating tape wound across the degaussing coil. CONSTITUTION: This degaussing coil 10 comprises a copper wire bundle 11 in which the copper wire that is a conductor is bundled, and the electrical insulating tape 12 used by winding across the copper wire bundle 11 from a start point 13 to an end point 14. The electrical insulating tape 12 is formed in structure without providing the adhesive that is an adhesive means adhered on the means ordinarily, and also, a tape provided with prescribed insulation performance and heat resistance is used. Therefore, since no adhesive is used in the electrical insulating tape, winding work is easily performed, which improves efficiency. Similarly, separation from the wire bundle is facilitated, and also, the copper wire is reused since no residual adhesive component exists in the copper wire bundle.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a degauss coil used in a cathode ray tube of a television receiver, and more particularly to a degauss coil having an improved insulating tape wound around the degauss coil.

[0002]

2. Description of the Related Art In recent years, the issue of resource reuse (recycling) has been highlighted due to environmental considerations and growing public opinion. Under these circumstances, efforts are being made to recycle home appliances. For example, in a television receiver, a decoupling coil for demagnetizing the scan control member made of an iron-based material in the cathode ray tube is attached to demagnetize the member due to being magnetized by the earth's magnetism and shifting the convergence. The present invention relates to recycling of this degauss coil,
The specific example will be described below.

The mounting state of the prior art degauss coil in a television receiver and a display monitor will be described with reference to FIG. FIG. 2 is a rear perspective view showing an example of a mounted state of a conventional Degauss coil.

In FIG. 2, a conventional television receiver is a cathode-ray tube including a beznet (a cover of a panel portion of a cathode ray tube) which is a front cabinet or a bezle cabinet 1 in which the besnet and a side cover are integrated. 2. The degauss coil 3 is generally used. On the inner surface (back surface portion) of the bezel cabinet 1, a boss 4 for mounting the cathode ray tube 2 and a holding member 5 for locking the degauss coil 3 in the installed state are provided.
And is formed integrally with.

Although not shown, the cathode ray tube 2 is composed of a panel portion which is an image display portion, a funnel portion, a neck portion into which an electron gun is inserted, and the like, and inside the panel portion, An electron beam passage hole made of a ferrous material such as a shadow mask and an aperture grill is arranged. The cathode ray tube 2 is attached to the bezel cabinet 1 via a reinforcing metal member 6 wound around the outer peripheral portion of the panel.

The degauss coil 3 has a detailed construction, for example, vinyl chloride (PV) over the entire circumference after bundling conductor copper wires.
For example, it is formed by winding an electric insulating tape (UL tape, for example) with an adhesive made of an insulating material such as C) so as to be overlapped with, for example, six times or more (obtained to improve electric insulation). Exist). Further, the cathode ray tube 2 is formed by forming a substantially inverted trapezoidal shape for the upper part and a substantially trapezoidal shape for the lower part. As the above-mentioned electrical insulation tape, a tape having a predetermined insulation resistance, for example, 5000 V × 1 minute and a predetermined heat resistance is used.

When the degauss coil 3 is attached to the cathode ray tube 2, the degauss coil 3 is brought from above and applied to the panel upper part of the cathode ray tube 2 shown in FIG.
The cathode ray tube 2 is placed so as to be applied to the lower portion of the panel while avoiding the neck portion. At that time, the degauss coil 3 is connected to the cathode ray tube 2.
Pressing against the funnel part of the
A part of the two parallel long sides is inserted and fixed between the holding members 5 of the bezel cabinet 1.

A lead wire provided with a connector (not shown) is led out to the degauss coil 3, and a predetermined degaussing current (attenuation) is supplied from an external electric circuit through the lead wire when the power of the television receiver is turned on. An oscillating current) is applied to add a higher magnetic flux density to demagnetize the electron beam passage hole made of the iron-based material.

[0009]

However, in the above-mentioned conventional degauss coil, the copper wires which are conductors are bound together and then wound several times with an electrical insulating tape with an adhesive. Therefore, when trying to reuse a relatively expensive copper wire, the adhesive of the electrical insulation tape adheres to the copper wire and becomes difficult to peel off, and the adhesive remains on the copper wire that is the conductor, There was a problem that reuse became difficult.

The present invention has been made in consideration of the above points, and makes it possible to reuse the copper wire of the degauss coil by eliminating the influence of the adhesive of the electrical insulating tape wound around the degauss coil. It is intended to provide a Degauss coil.

[0011]

In order to solve the above-mentioned problems, in the degauss coil of the present invention, a degauss coil formed by winding an electric insulating tape around a copper wire bundle in which copper wires which are conductors are bound together. Therefore, the electrical insulating tape wound around the copper wire bundle is provided with no adhesive means so that the copper wire bundle and the electrical insulating tape can be easily separated.

[0012]

In the degauss coil of the present invention having such a structure, since the electrical insulating tape having no adhesive means is used, the degauss coil can be easily formed. Moreover, the copper wire bundle and the electrical insulating tape can be easily separated, and the component of the bonding means does not remain in the copper wire bundle, so that the copper wire can be reused.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the degauss coil of the present invention will be described below with reference to FIG. FIG. 1 is a diagram showing an example of the degauss coil of the present invention, (a) is a perspective view showing an assembled state of the degauss coil of the present invention, and (b) is an enlarged sectional view taken along line AA.

First, the structure of the degauss coil according to the present invention will be described with reference to FIG. In FIG. 1A, reference numeral 10 indicates the degauss coil of the present invention used in a television receiver or the like. The degauss coil 10 of the present invention is
Copper wire bundle 11 in which copper wires that are conductors are bound, and copper wire bundle 1
The tape is generally composed of an electric insulating tape 12 which is wound from the starting point 13 to the ending point 14 of No. 1 and used. As a feature of the present invention, the electrical insulating tape 12 has a structure that does not have an adhesive that is normally attached as an adhesive means, and uses a tape having predetermined insulation resistance and heat resistance.

Next, the assembling operation of the degauss coil of the present invention will be described with reference to FIGS. 1 (a) and 1 (b). FIG.
In (a), the winding operation (taping) of the electrical insulating tape 12 of the degauss coil 10 of the present invention is performed by a taping device or partially manually. To explain the specific operation, the copper wire bundle 11 in which copper wires that are conductors are bound is supported by a predetermined method.

Then, the electric insulating tape 12 having no adhesive is brought and applied to the starting point 13 of the copper wire bundle 11, and the winding start of the electric insulating tape 12 is adhesive so that the tape is not displaced by the tension during taping. Temporary fastening tape (not shown)
Fix with. Subsequently, the electrical insulating tape 12 is wound around the entire circumference of the copper wire bundle 11 so as to have a desired thickness while applying a predetermined tension in the X direction.

Turning to FIG. 1B, at this time, the winding state of the electric insulating tape 12 of the present invention is the copper wire bundle 11 as shown in the drawing.
In order to obtain a sufficient insulation effect, for example, the total thickness t of the electric insulation tape is 0.8 mm or more (internal standard,
The L standard is 0.71 mm or more. Further, the electrical insulating tape 12 of the present invention is the end point 1 of the copper wire bundle 11.
When it reaches 4, it is similarly fixed with an adhesive tape. The end of the electric insulating tape 12 is cut with a cutter.

Thereafter, the degauss coil 10 of the present invention is
For example, similar to the above, the forming is performed for the upper portion of the substantially inverted trapezoidal shape and for the lower portion of the substantially trapezoidal shape, and is applied to the cathode ray tube while avoiding the neck portion. Further, the degauss coil 10 of the present invention is pressed against the funnel portion of the cathode ray tube and fixed by a holding member. Then, when the power of the television receiver is turned on, a predetermined degaussing current is applied from an electric circuit (not shown) to degauss the electron beam passage hole.

As described above, in the degauss coil of the present invention, the electrical insulating tape having no adhesive is wound around the copper wire bundle, so that the adhesive of the electrical insulating tape may stick out from the adherend. Therefore, the winding work becomes easy. Further, the automation of the winding work is facilitated, and the efficiency of the winding work is improved. Furthermore, since the electrical insulating tape does not have an adhesive, it can be easily peeled from the copper wire bundle, and since the adhesive component does not remain in the copper wire bundle, the copper wire bundle can be reused.

The present invention is not limited to the above embodiment, and various embodiments can be adopted. For example, although a degauss coil having a circular cross-sectional structure that is commonly used is illustrated in this embodiment, a degauss coil having an elliptical shape or a flat shape,
The present invention is also applicable to a degauss coil having another shape, and the present invention is not limited to the cross-sectional shape and forming shape of the degauss coil. Needless to say, the present invention can be appropriately applied without departing from the gist of the present invention.

[0021]

As described above, according to the degauss coil of the present invention, the electrical insulating tape having no adhesive is wound around the copper wire bundle, so that the adhesive of the electrical insulating tape is adhered to the adherend. It does not stick out further, and the winding work becomes easier. It also makes it easier to support automation,
The efficiency of the winding work is improved. Similarly, since the electrical insulating tape does not have an adhesive, it can be easily separated from the copper wire bundle, and since the adhesive component does not remain in the copper wire bundle, the copper wire can be reused.

[Brief description of drawings]

FIG. 1 is a diagram showing an example of a degauss coil of the present invention, (a) is a perspective view showing an assembled state of the degauss coil of the present invention, and (b) is an enlarged sectional view taken along line AA. .

FIG. 2 is a rear perspective view showing an example of a state in which a conventional Degauss coil is attached.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bezle cabinet 2 Cathode ray tube 3 Degauss coil 4 Boss 5 Holding member 6 Reinforcing metal fitting 10 Degauss coil 11 of the present invention 11 Copper wire bundle 12 Electrical insulating tape 13 Starting point 14 End point

Claims (2)

[Claims] 1. A degauss coil formed by winding an electric insulation tape around a copper wire bundle which is a conductor, wherein the copper wire bundle is formed by winding the electric insulation tape having no adhesive means, A degauss coil which facilitates separation of the copper wire bundle and the electrical insulating tape. 2. The degauss coil according to claim 1, wherein the copper wire bundle is reusable without the adhesive means of the electrical insulation tape remaining.