KR19990039847U - Magnet fixing structure of deflection yoke - Google Patents

Abstract

The present invention relates to a magnet fixing structure of a deflection yoke, which is integrally molded on both sides of a flange portion of a separator to fit a magnet to prevent changes in convergence and pincushion, and at the same time to prevent the magnet from being detached. In the magnet yoke fixed structure of the deflection yoke comprising a fixed case of a substantially rectangular box shape having a locking projection protruding in the center of the, to both sides of the fixed case to be pressed by pressing both ends of the magnet Characterized in that it comprises a protruding molded jaw. Therefore, there is an excellent effect of maximizing the function of the magnet by improving the structure of the fixed case so as to prevent the deviation phenomenon while mounting the magnet to prevent the change in the characteristics of the convergence and pin cushion of the deflection yoke. .

Description

Magnet fixing structure of deflection yoke

The present invention relates to a magnet fixing structure of a deflection yoke, and a deflection yoke of which a deflection yoke has been improved to prevent a deviation from the phenomenon of the deflection yoke and to prevent the deviation of the deflection yoke. It relates to a magnet fixing structure.

Generally, the deflection yoke 100 is a device for deflecting an electron beam emitted from an electron gun of a cathode ray tube, as shown in FIG. 1, a vertical deflection coil 110 deflecting the electron beam in a vertical direction, and the electron beam in a horizontal direction. A horizontal deflection coil (not shown) which deflects into the shape, and a separator 120 for precisely distinguishing the positions of the horizontal deflection coil and the vertical deflection coil 110 and being electrically insulated from 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. It is possible to realize an image on a screen of a television by sealing light on a stripe of each fluorescent surface mounted on an inner circumference of a panel.

On the other hand, the separator 120 for accurately distinguishing the positions of the horizontal deflection coil and the vertical deflection coil 110 and to be electrically insulated from each other, the neck portion 121 is coupled to the cathode ray tube, and the vertical It comprises a coil spacer 122 for mounting the deflection coil 110 and the horizontal deflection coil on the inner and outer circumferential surfaces, respectively, and a flange portion 123 closely attached to the rear surface of the CRT.

Meanwhile, the horizontal deflection coils and the vertical deflection coils 110 mounted on the inner and outer circumferential surfaces of the coil spacer respectively perform a function of deflecting the R, G and B electron beams emitted from the electron gun of the cathode ray tube at a predetermined angle. In some cases, the deflection angle is shifted depending on the mounted state or the wound shape, resulting in reverse crossover and misconvergence.

In this case, it is usually overcome by using a magnet 130 to change the magnetic field pattern to prevent changes in the characteristics of convergence and pincushion, the magnet 130 is fixed integrally formed on both sides of the flange portion 123 The case 140 is fitted and fixed.

In this case, the fixing case 140 is formed in a substantially rectangular box shape having an upper surface opened and includes a locking projection 141 protruding to the center of the outer surface to prevent the magnet 130 from being separated from the upper side after being fitted. do.

By the way, the fixing structure of the magnet 130 of the deflection yoke 100 according to the prior art, the locking jaw 141 protruded to the center of the outer surface of the fixed case 140 formed in a substantially rectangular box shape with an upper surface opened. Due to the deviation and movement is controlled only by the movement of both sides of the magnet 130 can not be fixed normally, the distortion of the pincushion occurs or there was a big disadvantage that can not normally achieve the procedure in the color water pipe.

Accordingly, the present invention has been devised to solve the above problems, and its purpose is to install a magnet that prevents the convergence of the deflection yoke and the characteristic change of the pincushion, and at the same time prevent the deviation. In order to provide a magnet fixing structure of the deflection yoke to maximize the normal function of the magnet by providing a locking jaw and a fixing jaw respectively in the center and both sides of the fixing case.

1 is a perspective view including a main portion enlargement showing a deflection yoke according to the prior art;

Figure 2 is a perspective view including a main portion enlarged showing a deflection yoke according to the present invention.

Explanation of symbols on the main parts of the drawings

100: deflection yoke 110: vertical deflection coil

120: separator 121: neck portion

122: coil spacer 123: flange portion

130: magnet 140: fixed case

141: locking jaw 142: fixing jaw

The magnet fixing structure of the deflection yoke according to the present invention for achieving the above object is integrally molded on both sides of the flange portion of the separator to prevent the deviation of the magnet and at the same time fitted with a magnet to prevent changes in the characteristics of convergence and pincushion. In the magnet fixing structure of the deflection yoke comprising a fixed case of a substantially rectangular box shape having a locking projection protruding to the center of the outer surface so as to, the pressure so that both sides of the magnet can be pressed by pressing It is a basic feature of the technical configuration that the fixing jaw is formed on both sides of the fixing case protrudingly formed.

Hereinafter, a preferred embodiment of the magnet fixing structure of the deflection yoke according to the present invention will be described with reference to FIG. 2.

Figure 2 is a perspective view including the enlarged main portion showing 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. 2, the deflection yoke 100 according to the present invention includes a vertical deflection coil 110 deflecting an electron beam in a vertical direction, a horizontal deflection coil deflecting the electron beam in a horizontal direction, and the horizontal deflection yoke 100. The separator 120 is configured to separate the positions of the deflection coils and the vertical deflection coils 110 and to be electrically insulated from each other.

At this time, the separator 120 is in close contact with the neck portion 121 to which the cathode ray tube is coupled, the coil spacer 122 for mounting the vertical deflection coil 110 and the horizontal deflection coil on the inner and outer circumferential surfaces, respectively, and the rear surface of the CRT. It is made of a flange portion 123 to be mounted, and on both sides of the flange portion 123 to change the magnetic field pattern to prevent the change of the characteristics of convergence and pin cushion magnet 130 is fitted in a substantially rectangular box-shaped fixed case 140 is integrally molded.

In addition, the fixing case 140 has a locking jaw 141 protruded to the center of the outer surface is formed in a substantially rectangular box shape, the upper surface is opened so that the magnet 130 is not fitted and is separated from the upper direction. And, both sides of the fixing jaw 142 is protruded to be fixed by pressing and pressing both ends of the magnet 130.

Here, the magnet 130 is separated from the movement and movement by the locking jaw 141 and the fixing jaw 142 protruding in the center and both sides of the outer surface of the fixing case 140 is suppressed to the maximum magnet 130 ) It can be seen that it can perform its own functions normally.

As described above, according to the magnet fixing structure of the deflection yoke according to the present invention, the structure of the fixing case is improved so as to prevent the deviation and at the same time the magnet is fitted to prevent the deflection yoke convergence and the characteristic change of the pincushion. It has an excellent effect to maximize the function of the magnet.

That is, the locking jaw and the fixing jaw are provided to the center and both sides of the outer surface of the fixing case so that the magnet can be tightly fixed, thereby having a useful effect of suppressing the departure and movement of the magnet to the maximum.

Claims (1)

A substantially rectangular shape having a locking projection protrudingly formed in the center of the outer surface so as to be integrally formed on both sides of the flange portion of the separator to prevent the change of the magnet and to fit the magnet to prevent the change of the convergence and pincushion characteristics. In the magnet fixing structure of the deflection yoke including the box-shaped fixing case, The magnet fixing structure of the deflection yoke, characterized in that it comprises a fixing jaw protrudingly formed on both sides of the fixing case so as to press and press the both ends of the magnet.