KR100696652B1 - Deflection yoke having one body type coil separator - Google Patents

Abstract

A deflection yoke capable of minimizing an assembly error between an integrated separator and a neck cap assembled to the separator. The deflection yoke of the present invention includes an integrated coil separator; Deflection coils disposed inside and outside the coil separator to generate a deflection magnetic field; A correction cap such as a coma-free coil and a ferrite bar, and a neck cap assembled to the coil separator, wherein the coil separator and the neck cap include the neck cap and the coil separator so that the neck cap is assembled at the correct assembly position. First and second coupling means for coupling the are provided respectively.

Integral, split, separate, deflection yoke, rib, separator, neck cap, recess, convex

Description

Deflection yoke with integral coil separator {DEFLECTION YOKE HAVING ONE BODY TYPE COIL SEPARATOR}

BRIEF DESCRIPTION OF THE DRAWINGS The top view of the coil separator employ | adopted for the deflection yoke of this invention.

2 is a side view of a coil separator employed in the deflection yoke of the present invention.

3 is a front view of a neck cap employed in a deflection yoke of the present invention.

The present invention relates to a deflection yoke having an integrated coil separator, and more particularly, to a deflection yoke for a cathode ray tube capable of minimizing an assembly error between the separator and a neck cap assembled to the separator.

A cathode ray tube is an electron tube that realizes an image by deflecting an electron beam emitted from an electron gun in a horizontal and vertical direction with respect to a screen so that the electron beam is landed on a phosphor of the screen. A panel, a neck portion on which an electron gun is mounted to the inner circumferential surface, a fallopian-shaped funnel connecting the panel and the neck portion, and a cone portion of the funnel is mounted horizontally and vertically And a deflection yoke (DY) for deflecting the electron beam to a specific pixel by generating a deflection magnetic field.

The deflection yoke is installed inside the coil separator to generate a pincushion type magnetic field in a vertical direction, and is arranged outside the coil separator to generate a barrel type magnetic field in a horizontal direction. A deflection coil and a ferrite core mounted on the outside of the vertical deflection coil, and on the rear side of the coil separator, a coma free coil, a ferrite bar, and a convergence and purity bar to compensate for miss convergence. Neck cap is provided with a correction member such as Magnet).

In the deflection yoke having such a configuration, the coil separator is usually manufactured in a split type or an integral type. When the coil separator is formed in a split type, the neck cap is manufactured integrally with the separator, while the coil separator is formed in one piece. The neck cap is manufactured in a detachable type which is assembled to the separator from the rear side of the coil separator.

In the case of the split coil separator, a split ferrite core that can be assembled in the lateral direction of the separator is used. In the case of the integrated coil separator, an integral ferrite core that can be assembled in the rear direction of the separator is used.

However, in the split coil separator, since the neck cap is manufactured integrally with the separator, there is no fear of assembly error between the neck cap and the coil separator, and thus the position of the correction member mounted on the neck cap is very good. Since the neck cap is separately assembled to the separator, there is a great possibility of an assembly error between the neck cap and the coil separator.

Therefore, if an assembly error occurs when assembling the neck cap on the integrated coil separator, the assembly of the neck cap is prevented because the correction member, which has a very large influence on the convergence characteristics, is not positioned at the correct position and the convergence characteristics are deteriorated. Very careful attention should be paid to the city, which causes a problem in that the assembly workability of the deflection yoke is reduced.

Accordingly, an object of the present invention is to provide a deflection yoke for a cathode ray tube that can minimize an assembly error between an integrated coil separator and a neck cap assembled to the separator.

The object of the present invention as described above can be achieved by providing an integral coil separator and a neck cap assembled to the separator by coupling means having shapes corresponding to each other.

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

In describing the present invention, except for the coil separator and the neck cap, they have the same configuration as the conventional deflection yoke, and thus only the above components are shown in FIGS. 1 to 3 to clearly illustrate the present invention.                     

1 and 2, the longitudinal direction of the separator 10 in the state in which the vertical deflection coil ribs 12 and 14 are spaced at equal intervals on the outer circumferential surface of the coil separator 10 manufactured integrally. Therefore, it is provided integrally with the separator 10, and the linear side protruding ribs 16 and 18 of a predetermined width are provided on the neck side outer peripheral surface 10 'of the coil separator 10 coaxially with the ribs 12 and 14. do.

Here, the protruding ribs 16, 18 may be provided integrally with the ribs 12, 14 for the vertical deflection coils.

Although not shown, a horizontal deflection coil for generating a pincushion type magnetic field in a vertical direction and a vertical deflection coil for generating a barrel type magnetic field in a horizontal direction are provided on the inner side and the outer side of the coil separator 10, respectively. The ferrite core is mounted on the outside of the vertical deflection coil.

Here, the ferrite core is typically an integral or split ferrite core can be used, in which case the core is assembled from the rear side of the coil separator, in the case of split ferrite cores the core is coiled. It is assembled from the lateral side of a separator.

Meanwhile, the neck cap 20 illustrated in FIG. 3 is assembled to the neck side of the coil separator, and two rib insertion grooves 22 and the protrusion ribs 16 and 18 are inserted into the inner circumferential surface of the neck cap 20. 24 are provided at equal intervals, and each of the rib insertion grooves 22 and 24 is provided in the pair of ribs 26 spaced at the same interval as the width W ₁ of the protruding ribs 16 and 18. It is composed by.

The rib and the rib insertion groove are to fix the neck cap 20 to the correct position of the coil separator 10 by fixing the position in the rotational direction of the neck cap 20. The protruding ribs 16 and 18 and the rib Only one insertion groove 22 or 24 may be provided.

Although not shown, the neck cap 20 having the above-described configuration includes a correction for adjusting the convergence characteristics of deflection yokes such as a coma free coil, a ferrite bar, and a convergence and purity magnet (CPM). The member is mounted.

In addition, the neck cap is provided with a locking step that is caught on the end of the coil separator to fix the position in the forward direction of the neck cap.

Here, reference numeral 20 ', which is not described, is a support portion that supports the neck-side outer circumferential surface 10' of the coil separator 10. As shown in FIG.

Accordingly, after the correction member is mounted at a predetermined position of the neck cap 20, the coil separator 20 is inserted into the rib insertion grooves 22 and 24 so that the ribs 16 and 18 are inserted into the rib insertion grooves 22 and 24. 10, the neck cap 20 and the coil separator 10 are assembled together, and the neck cap 20 is formed between the ribs 16 and 18 and the rib insertion grooves 22 and 24. By action, it is assembled at the correct position of the coil separator 10.

Therefore, the necessity of separately performing the operation | movement which adjusts the position degree of a correction member can be eliminated.                     

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications can be made within the scope of the claims, the detailed description of the invention, and the accompanying drawings. Naturally, it belongs to the scope of the invention.

As described above, according to the deflection yoke of the present invention, the neck cap can be easily assembled to the integrated coil separator while minimizing the assembly error.

Therefore, the work time for adjusting the position of the correction member after assembling the neck cap can be shortened, thereby improving the workability of assembling the neck cap.

Claims (7)

An integrated coil separator; Deflection coils provided inside and outside the coil separator to generate vertical and horizontal deflection magnetic fields, respectively; A neck cap equipped with a correction member such as a coma-free coil and a ferrite bar, and assembled to the coil separator; Including; One side of the coil separator and the neck cap is provided with a straight concave provided in the longitudinal direction, and the deflection yoke having an integral coil separator consisting of a recess to which the iron is coupled to the other side of the coil separator and the neck cap. . The deflection yoke according to claim 1, wherein the convex portion is formed on an outer circumferential surface of the coil separator, and the recessed portion has an integral coil separator formed on an inner circumferential surface of the neck cap. The deflection yoke according to claim 1 or 2, wherein the convex portion and the concave portion have an integral coil separator that serves to fix a rotational direction position of the neck cap. delete 2. The deflection yoke of claim 1, wherein the recess has an integral coil separator provided by two recesses spaced at intervals equal to the width of the recess. The integrated coil separator of claim 1, wherein two coils are formed at equal intervals on the circumferential surface of the coil separator, and two recesses are formed at equal intervals on the neck cap. Having a deflection yoke. The deflection yoke according to claim 1, wherein the convex portion has an integral coil separator provided on the same axis as the rib for the vertical deflection coil of the coil separator.

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