JPH08214324A - Degausing device for crt - Google Patents

Abstract

PURPOSE: To display degausing capacity larger than ever with the same degausing coil with the same material and of the same length by forming the degausing coil whose cross-section is formed in flat shape by bundling copper wires and arranging it on the outer periphery in the neighborhood of the front of a CRT. CONSTITUTION: The CRT 2 is mounted on the inside of an outer packaging cabinet 1 which comprises a television receiver and a monitor receiver with mounting metal fitting 3, 4. The degausing coil 5 is formed by bundling the copper wires 6 and in cross-sectional flat shape, and arranged on the outer periphery in the neighborhood of the front of the CRT 2. Since the degausing coil 5 is formed in plate shape, it is arranged in a gap between the outer packaging cabinet 1 and the CRT 2, which attains space saving in the television receiver, etc. Also, since the degausing coil 5 is located at the outer periphery of the front of the CRT 2, a degausing force works effectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a CRT degaussing device in a television receiver or monitor receiver using a CRT.

[0002]

2. Description of the Related Art In recent years, in television receivers and monitor receivers using CRTs, it has been required that the CRT be large-sized, the same inch in size, and space-saving.
And the gap between the exterior cabinet is getting very small. By the way, since the CRT is magnetized, this magnetization is canceled by the degaussing coil.

A conventional CRT degaussing device will be described below. 3 and 4 show a conventional degaussing device for a CRT. 3 and 4, reference numeral 11 denotes an exterior cabinet of a television receiver or a monitor receiver. CR
A degaussing coil 15 is attached to T in the exterior cabinet 11 and to the outer peripheral portion of the CRT 12 by a mounting bracket 13 and a screw 14. The degaussing coil 15 converges a large number of copper wires 16 and has a circular cross section. Note that FIG. 4 shows a cross section taken along the line BB 'in FIG.

[0004]

However, in the above-mentioned conventional configuration, the space saving of the set has been demanded in recent years, and the diameter of the degaussing coil 15 does not fit within the gap between the CRT 12 and the exterior cabinet 11.
Will be placed on the back glass surface behind the front surface of. In this case, there is a problem in that the degaussing ability obtained becomes smaller than that when the same degaussing coil is placed adjacent to the outer peripheral band near the front surface of the CRT 12 and the same current is passed.

Further, as described in Japanese Utility Model Publication No. 62-71981 and Japanese Utility Model Publication No. 62-112287,
There was a degaussing coil formed by using a metal conductive foil, but with this degaussing coil, the conventional equipment and materials have to be changed, and excessive capital investment is required.

The present invention solves the above-mentioned problems of the prior art by using the same material and the same length (quantity) as the conventional degaussing coil.
An object of the present invention is to provide a degaussing device for a CRT that exhibits a greater degaussing ability.

[0007]

In order to achieve this object, a degaussing device for a CRT according to the present invention forms a degaussing coil having a flat cross section by converging a copper wire and forming the degaussing coil on the CRT.
It is arranged on the outer periphery near the front surface of.

[0008]

According to the present invention, since the degaussing coil has a thin plate shape, it can be smoothly arranged in a narrow space between the CRT and the exterior cabinet.
At the same time, the demagnetizing force can be increased.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 and 2, 1
Is an exterior cabinet that constitutes a television receiver or a monitor receiver, and the CRT 2 is mounted inside the exterior cabinet 3
And it is attached with screws 4. The degaussing coil 5 converges the copper wire 6 and is formed to have a flat cross section.
Is disposed on the outer periphery near the front surface of the. 2 is shown in FIG.
A-A 'cross section of is shown.

In the above description, since the degaussing coil 5 is plate-shaped, it can be arranged in the gap between the exterior cabinet 1 and the CRT 2, and it is possible to save space in a television receiver or the like. Since the degaussing coil 5 can be located on the outer circumference of the front part of the CRT 2, the degaussing force can be more efficiently applied.

As described above, according to this embodiment, since the degaussing coil in which the copper wire is converged is formed in a thin plate shape,
The degaussing coil can be efficiently installed in the narrow space between the CRT and the exterior cabinet, and the degaussing action can be effectively exhibited.

[0012]

As is apparent from the above description of the embodiments, the present invention forms a degaussing coil in which copper wires are converged into a thin plate shape, so that the degaussing coil is provided in a narrow space between the CRT and the exterior cabinet. It can be easily arranged and can more effectively exhibit the degaussing action, and its value is great.

[Brief description of drawings]

FIG. 1 is a front view of a degaussing device for a CRT according to the present invention.

FIG. 2 is a sectional view taken along the line AA ′ of FIG.

FIG. 3 is a front view of a conventional CRT degaussing device.

FIG. 4 is a sectional view taken along line BB ′ of FIG.

[Explanation of symbols]

 1 Exterior cabinet 2 CRT 3 Mounting bracket 4 Screw 5 Degaussing coil 6 Copper wire

Claims (1)

[Claims] 1. A degaussing device for a CRT in which copper wires are converged to form a degaussing coil having a flat cross section, and the degaussing coil is arranged on the outer periphery near the front surface of the CRT.