KR19990025991U - Fixed structure of deflection yoke coma coil - Google Patents

Abstract

The present invention relates to a coma coil fixing structure of the deflection yoke, a coma coil composed of a bobbin having a substantially rectangular tube shape having at least a core and a coil wound around the outer circumferential surface of the bobbin and a recess formed on the neck portion to In the fixed yoke coma coil fixing structure including a separator having a mounting groove proportional to the area of the coma coil, the both sides of the mounting groove of the neck portion are partially cut into a roughly d-shaped shape and then the locking jaw is protruded. Since it comprises an elastic stopper for elastically mounting the coma coil to be provided, it is possible to maximize the coupling force of the coma coil to prevent the deterioration of the deflection yoke due to a poor coupling, the assembly operation becomes easier There is an excellent effect that the productivity is greatly improved.

Description

Fixed structure of deflection yoke coma coil

The present invention relates to a fixed structure of the coma coil of the deflection yoke, and more specifically, to form the elastic stopper and the fitting gap on the bottom and both sides of the mounting groove recessed in the neck portion of the separator and to the fitting gap on both sides of the coma coil The present invention relates to a fixing structure of the coma coil of the deflection yoke, which protrudes the fitting protrusion so that the fitting can be coupled so that the coma coil can be elastically fitted to the mounting groove.

In general, a deflection yoke for deflecting an electron beam emitted from an electron gun of a cathode ray tube includes a vertical deflection coil 110 for deflecting the electron beam in a vertical direction, and a horizontal deflection coil deflecting the electron beam in a horizontal direction. (Not shown) and the separator 120 to accurately distinguish the positions of the horizontal deflection coil and the vertical deflection coil 110 and to electrically insulate each other.

At this time, the electron beams of R (Red), G (Green), and B (Blue) emitted from the electron gun of the cathode ray tube are deflected at a predetermined angle by the deflection yoke 100 and pass through the through holes formed in the shadow mask. By sealing a stripe of each fluorescent surface mounted on the inner circumference of the panel and emitting light, a normal image can be realized on the screen of the television.

On the other hand, of the three electron guns of the cathode ray tube, the green electron gun in the center coincides with the center axis of the cathode ray tube, but the red and blue electron guns on the left and right sides are installed inclined slightly inward with respect to the central axis. In the image, the three electron beams should each be designed to focus on the holes of the shadow mask and to simultaneously reach the respective phosphors through the same holes.

In this case, the electron beam is accurately sealed to the inner circumference of the stripe of the panel, which is called landing. On the other hand, if the mis-landing that deviates to the outer circumference of the stripe of the electron beam occurs, the image of the screen is not clear, and thus deterioration of image quality occurs. Sometimes.

Here, as an example of the mislanding, the coma aberration generated by the deflection sensitivity with respect to the center beam is relatively stronger than the deflection sensitivity by the pair of side beams.

This coma aberration eventually causes a drop in image quality over the entire television screen and should be eliminated as much as possible, and the function is performed by the coma coil 130.

On the other hand, the coma coil 130 performing the above function is fixed on the neck portion 121 of the separator 120, the structure thereof will be described with reference to FIG.

Figure 2 is an exploded perspective view showing a partially enlarged structure of the fixed yoke of the deflection yoke according to the prior art.

As shown in FIG. 2, the coma coil 130 is formed by stacking a plurality of iron pieces to form a core 131 having an approximately alphabetic (E) shape and an approximately alphabetic shape so that the core 131 may be embedded therein. E) consists of a bobbin 132 having a rectangular cylinder shape and a coil 133 wound a plurality of times on the outer circumferential surface of the bobbin 132.

The coma coil 130 having the above configuration is fitted and fixed to the mounting groove 121a recessed and molded on the neck portion 121 of the separator 120.

At this time, the mounting groove 121a has an area proportional to the size of the bobbin 132 of the coma coil 130, and from the bottom of the rear mounting groove 121a so as not to escape after the coma coil 130 is fitted. A rectangular stopper 122 is formed to protrude upward.

Here, the stopper 122 is installed upright from the bottom of the mounting groove 121a as shown in FIG. 2 to support the rear of the coma coil 130.

By the way, the conventional coma coil fixing structure of the deflection yoke, the coma coil 130 composed of the core 131, the bobbin 132, the coil 133 is formed by recessing the neck portion 121 of the separator 120. Since it is made of a structure that is fixed by the stopper 122 after being seated in the mounting groove 121a, the fitting work is very difficult, there was a big disadvantage to inhibit productivity.

In addition, because it is fixed to the structure that is simply supported by the stopper 122, the upward deviating phenomenon caused by the external shock and shaking frequently occurs, there is a problem that the normal function of the deflection yoke (100) falls.

Accordingly, the present invention has been devised to solve the above problems, the purpose of the bar is to indent the elastic stopper and the fitting gap on the bottom and both sides of the mounting groove and the fitting can be coupled to both sides of the coma coil. It is to provide a fixing structure of the deflection yoke coma coil to maximize the productivity by allowing the comma coil to be fixed by mounting the fitting fitting so as to protrude.

1 is a perspective view showing a general deflection yoke.

Figure 2 is an exploded perspective view showing a partially enlarged coma coil fixing structure of the deflection yoke according to the prior art.

Figure 3 is an exploded perspective view showing a partially enlarged coma coil fixed structure of the deflection yoke according to the present invention.

* Explanation of symbols for main parts of the drawings

10 elastic stopper 11

20: fitting gap 30: fitting protrusion

100: deflection yoke 110: vertical deflection coil

120: separator 121: neck portion

121a: mounting groove 130: coma coil

131: core 132: bobbin

133: coil

The coma coil fixing structure of the deflection yoke according to the present invention for achieving the above object is a coma coil consisting of a bobbin having a substantially rectangular cylindrical shape having at least a core and a coil wound around the outer circumferential surface of the bobbin and a neck portion In the comb coil fixing structure of the deflection yoke, which comprises a separator recessed in the recess and having a mounting groove proportional to the area of the coma coil, the bottom face of the neck portion of the mounting groove is partially cut into a roughly d-shaped shape. It is characterized in that it comprises a resilient stopper for elastically mounting the coma coil by protruding the locking jaw after the technical features.

In addition to the above configuration, it is preferable to further include a fitting gap recessed and molded on both sides of the mounting groove, and a protrusion formed on both sides of the bobbin so as to be fitted into the fitting gap.

Hereinafter, a preferred embodiment of the coma coil fixing structure of the deflection yoke according to the present invention will be described with reference to FIG.

Figure 3 is an exploded perspective view showing a partially enlarged structure of the fixed yoke of the deflection yoke according to the present invention, and the same name and the same reference numerals will be used for the same configuration having the same function as the conventional configuration.

First, as shown in FIG. 3, the coma coil 130 is formed by stacking a plurality of iron pieces to form a core 131 having an approximately two-letter (E) shape and an approximately alphabet so as to embed the core 131. It consists of a bobbin 132 having a rectangular cylindrical shape of this (E) and a coil 133 wound a plurality of times on the outer circumferential surface of the bobbin 132. At this time, both side surfaces of the bobbin 132 is formed by protruding molding fitting projections 30 in both directions.

On the other hand, the neck portion 121 of the separator 120 for mounting the coma coil 130 is provided with a mounting groove 121a proportional to the area of the coma coil 130, the mounting groove 121a An elastic stopper 10 having a locking jaw 11 protruding is formed at a bottom of the coma coil 130 and is partially cut into a roughly D-shaped shape so that the coma coil 130 can be elastically fitted. (121a) On both sides, the fitting gap 20 to receive the fitting protrusion 30 is recessed and formed.

Referring to the coma coil fixing operation of the deflection yoke according to the present invention made of the above configuration.

First, the fitting protrusions 30 protrudingly formed on both sides of the bobbin 132 by holding the coma coil 130 are recessed and molded on both sides of the mounting grooves 121a of the neck portion 121 of the separator 120. When pressed to fit the elastic stopper 10 protruded to the bottom surface of the mounting groove 121a is elastically moved in the downward direction by the sliding contact between the locking projection 11 and the lower surface of the coma coil 130. Will be.

Then, when the coma coil 130 is finally seated inside the mounting groove 121a, the locking jaw 11 is restored upward by the elasticity of the elastic stopper 10 to restore the coma coil ( The back of 130) is tightly supported so that the assembly can be completed simply.

As described above, according to the comma coil fixing structure of the deflection yoke according to the present invention, the elastic stopper and the fitting gap are recessed and molded on the bottom and both sides of the mounting groove recessed and formed on the neck of the separator, and the fitting gap is formed on both sides of the coma coil. Protruding molding of the fitting protrusion to be fitted into the mounting groove so that the coma coil is fixed to the mounting groove and can be fixed, thereby maximizing the coupling force, thereby preventing the deterioration of the deflection yoke due to the coupling failure. In addition, there is an excellent effect that the assembly operation is easier and the productivity is greatly improved.

Claims (2)

A separator having a bobbin having a substantially rectangular cylindrical shape having at least a core embedded therein and a coil wound around the outer circumferential surface of the bobbin a plurality of times, and a mounting groove recessed on a neck portion and mounted in proportion to the area of the coma coil. In the fixed yoke coma coil fixed structure, Fixed part of the yoke's coma coil, characterized in that it comprises an elastic stopper for elastically fitting the coma coil by protruding the engaging jaw after the incision portion of both sides of the neck portion of the mounting groove in the approximately Di (c) shape. . The method of claim 1, A fitting gap formed in both sides of the mounting groove, Fixing yoke coma coil fixed structure characterized in that it further comprises a fitting projection protruding on both sides of the bobbin to be fitted in the fitting gap.