KR970004316B1 - Deflection yoke for conversions jig - Google Patents

Abstract

Disclosed is a jig for compensating for convergence of a deflection yoke(10), which can be easily assembled, can save materials, and can improve the quality of deflection yoke(10). Deflection yoke(10) is provided with horizontally deflecting coils(14) which are wound at an inside of a coil separator(13) and vertically deflecting coils(15) which are installed at an outer portion of horizontally deflecting coil(14). The convergence is generated from deflection yoke(10) due to a winding angle of vertically deflecting coils(15) wound around a core(16). The jig is mounted on core (16) in such a manner that the jig can be finely moved with respect to core(16).

Description

Convergence correction jig of deflection yoke

1 is a front view showing a general deflection yoke.

2 is a schematic cross-sectional view of the deflection yoke shown in FIG.

3 is a schematic front view showing a convergence correction jig of a deflection yoke according to the present invention.

4 is a schematic cross-sectional view showing a state in which the convergence correction jig shown in FIG. 3 is mounted.

* Description of the symbols for the main parts of the drawings *

10: deflection yoke 11: neck portion

12 screen portion 13 coil separator

14: horizontal deflection coil 15: vertical deflection coil

16: ferrite core 17: core clamp

18: JIG

The present invention relates to a convergence correction jig of a deflection yoke, and more particularly, to facilitate convergence by mounting a jig on a ferrite core to correct convergence generated in a deflection yoke mounted on a receiver or a cathode ray tube (CRT). The convergence correction jig of the deflection yoke that can be easily corrected.

In general, a cathode ray tube such as a TV receiver or a monitor is equipped with a deflection yoke for deflecting an electron beam emitted from an electron gun to form a screen by scanning the electron beam in a predetermined manner. In addition, the current trend is that as the screen size becomes larger, the plane becomes smaller, the pixels become smaller, and the thickness of the cathode ray tube becomes thinner, the deflection angle becomes larger, and convergence correction of the deflection yoke is important to obtain high resolution.

As shown in FIGS. 1 and 2, the deflection yoke is equipped with a horizontal deflection coil 14 wound inside the coil separator 13 including the neck portion 11 and the screen portion 12. To the outside, a pair of ferrite coils 16 wound around a vertical deflection coil 15 are coupled by a coil clamp 17.

As the sawtooth pulse is applied to the horizontal deflection coil 14 and the vertical deflection coil 15, a magnetic field is generated by the flaming left hand law to emit red (R), green (G), and blue (B) electron beams. By deflecting up, down, left and right on the screen to determine the dice.

However, the color purity of the image projected on the screen is deteriorated because the electron beam deflected by the error due to the mechanism of the deflection yoke, the error at the time of assembly and the applied voltage, or the mutually interfering magnetic field between the parts is not focused at the correct point of the screen. Convergence occurred.

As described above, in order to correct the convergence generated in the deflection yoke, a vertical deflection coil 15 is wound around the ferrite core 16 of the deflection yoke 10 and a sawtooth pulse is applied to position the electron beam at the correct point on the screen. The winding angle of the vertical deflection coil 15 was adjusted to the ferrite core 16 until rewinding, and the above operation was repeated until the screen adjustment was completed, thereby correcting the convergence of the deflection yoke.

However, in order to correct the convergence caused by the deflection yoke, the vertical deflection coil was re-wound by adjusting the vertical deflection coil. Thus, the film of the vertical deflection coil was peeled off and a short circuit occurred. Since the winding angle of the vertical deflection coil must be readjusted until the screen adjustment is completed, a large amount of time is lost during the assembling process and the reliability of the quality is deteriorated.

Accordingly, the present invention is to solve the above problems, an object of the present invention is to mount a jig capable of finely flowing in the ferrite coil of the deflection yoke, the vertical deflection coil is wound around the jig, The generated convergence can be easily corrected in the state where the deflection yoke is mounted on the cathode ray tube, thereby reducing the time during the assembly process and reducing the material cost and providing the convergence correction jig of the deflection yoke which can improve the quality of the deflection yoke. Is in.

In the deflection yoke of the deflection yoke according to the present invention for achieving the above object, in the deflection yoke for correcting the convergence generated in the deflection yoke by the winding angle of the vertical deflection coil wound on the ferrite core, There is a point that the jig is mounted so that the vertical deflection coil is minutely flowed to the reel core.

Hereinafter, one preferred embodiment of the convergence correction jig of the deflection yoke according to the present invention will be described in detail with reference to the accompanying drawings.

3 and 4 show the convergence correction jig of the deflection yoke according to the present invention, in which the deflection yoke 10 is wound inside the coil separator 13 including the neck portion 11 and the screen portion 12. A horizontal deflection coil 14 is mounted, and a jig 18 is mounted on the ferrite coil 16 in which a small amount of the vertical deflection coil 15 is wound around, and a vertical deflection is applied to the jig 18. The ferrite core 16 having a small amount of secondary winding of the coil 15 is coupled by the core clamp 17.

Convergence correction jig configured as described above is a magnetic field is generated as the sawtooth pulse is applied to the horizontal deflection coil 14 and the resin deflection coil 15 of the deflection yoke 10 mounted on the cathode ray tube to screen the electron beam emitted from the electron gun When determining the upper, lower, left and right dice, the small amount of vertical deflection coil 15 mounted on the ferrite core 16 is wound while the deflection yoke 10 is mounted on the cathode ray tube. The jig 18 is moved left and right to adjust the screen by correcting the convergence of the deflection yoke.

As described above, according to the convergence correction jig of the deflection yoke according to the present invention, by mounting a jig capable of flow in the ferrite core to which the vertical deflection coil is wound, it is possible to easily correct the convergence generated in the deflection yoke, and the assembly process This saves time, reduces material costs, and improves the quality of the deflection yoke.

Claims (1)

In a deflection yoke for correcting the convergence generated in the deflection yoke by the winding angle of the vertical deflection coil wound on the ferrite core, a deflection yoke in which a jig is mounted so that the vertical deflection coil flows finely in the reel core. Convergence correction jig.