KR200289352Y1 - fixing for preventong of a magnet of eflection yoke - Google Patents

Abstract

The magnet fixing structure of the deflection yoke according to the present invention includes a separator 120 having a neck portion 121 coupled to a cathode ray tube of a cathode ray tube, and a magnet 124 having a rectangular shape preventing the change of characteristics of the convergence and pin cushion. In the magnet fixing structure of the deflection yoke, a coupling sphere 121a of a rectangular shape having a lower portion opened to both sides of the lower end of the neck portion 121 is formed, and the support jaw 121b is symmetrically formed inside the coupling sphere 121a. A magnet accommodating body 121c that accommodates the magnet 124 is formed by combining a magnet accommodating body 121c having a handle formed integrally with a front portion formed to be bent to accommodate the magnet 124 therein. ) Can be more easily coupled and separated at the neck 121, thereby improving the assembly of the deflection yoke 100.

Description

Fixing for preventong of a magnet of eflection yoke}

The present invention relates to a magnet fixing structure of a deflection yoke, and more particularly, a deflection yoke of the deflection yoke, which is mounted on the side of the neck of the deflection yoke, facilitates the coupling and detachment of the magnet for correcting the magnetic field. It relates to a magnet fixing structure.

Generally, the deflection yoke is a device for deflecting an electron beam emitted from an electron gun of a cathode ray tube, as shown in FIG. 1, and a vertical deflection coil 110 for deflecting the electron beam in a vertical direction, and a deflection yoke in a horizontal direction. A horizontal deflection coil (not shown) 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. By encapsulating each stripe of fluorescent surfaces mounted on the inner circumference and emitting light, an image can be realized on a screen of a television.

On the other hand, the separator 120 for precisely 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 123 for mounting the deflection coil 110 and the horizontal deflection coil on the inner and outer circumferential surfaces, respectively, and a flange portion 130 closely attached to the rear surface of the CRT.

In addition, the horizontal deflection coils and the vertical deflection coils 110 mounted on the inner and outer circumferences of the separator 120 perform a function of deflecting the electron beams of R, G, and B emitted from the electron gun of the cathode ray tube at a predetermined angle. Depending on the mounted state or the wound shape, the deflection angle is shifted, resulting in reverse crossover and misconvergence, and thus a normal image may not be realized.

In this case, the magnetic field pattern is typically overcome by using a magnet 124 that prevents changes in the characteristics of convergence and pincushion, and the magnet 124 is mounted to the mounting portions 122 on both sides of the neck portion 121. It is fitted and fixed in place.

By the way, the magnet fixing structure of the deflection yoke according to the prior art, by mounting and fixing the magnet 124 to the mounting portion 122 formed on both sides of the neck portion 121 by force fitting, the departure and movement is controlled, the mounting portion 122 The magnet 124 coupled to) has a disadvantage that it is difficult for the operator to easily separate to the outside by being coupled to the interference fit.

In addition, although the magnet 124 is coupled to the mounting portion 122 as an interference fit as described above, the magnet 124 is moved up and down, left and right in the mounting portion 122 even if the shock from the outside of the deflection yoke 100 or a slight shaking There was a problem that the distortion of the pincushion occurs or the procedure of adjusting the color in the water tube can not be achieved normally.

Therefore, the main object of the present invention is to form a coupler of the rectangular body with an open lower side on the side of the neck portion and to bend the support jaw on the inner lower portion so that the magnet housing housing the magnet in the neck portion can be easily sliding and combined. It is to provide a magnet fixing structure of the deflection yoke to improve the assembly of the deflection yoke by allowing the magnet to be separated or combined more easily in the neck portion.

1 is a perspective view showing a state of inserting a magnet mounted to the deflection yoke according to the prior art.

Figure 2 is a perspective view showing a magnet fixing structure to the 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

121a: coupling member 121b: support jaw

121c: magnet housing 123: mounting portion

123: coil spacer 124: magnet

130: flange

In order to achieve the above object, the magnet fixing structure of the deflection yoke of the present invention is such that a separator having a neck portion coupled to a cathode ray tube of a cathode ray tube, and a magnet housing housing a magnet to the bottom surface side of the neck portion can be easily coupled. In the magnet fixing structure of the deflection yoke,

The technical feature of the technical configuration is to form a coupling sphere of the rectangular body having a lower opening on the side of the neck portion and bend the support jaw symmetrically so that the magnet housing can be easily slid and coupled inside the coupling sphere. .

When described in detail with reference to the accompanying drawings a preferred embodiment of the present invention configured as described above are as follows.

Figure 2 is a perspective view showing a magnet fixing structure to 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, the magnet fixing structure of the deflection yoke of the present invention, as shown in Figure 2, the vertical deflection coil 110 for deflecting the electron beam in the vertical direction, and the horizontal deflection coil deflecting the electron beam in the horizontal direction (not shown) ), A separator 120 for precisely distinguishing the positions of the horizontal deflection coils and at the same time electrically insulating each other, and a magnet having a rectangular shape for changing a magnetic field pattern to prevent changes in convergence and pin cushion characteristics. 124 and a magnet housing 121c that houses the magnet 124 and is coupled to the lower end of the neck portion 121.

At this time, the neck portion 121 to which the magnet accommodating body 121c is coupled forms a coupling sphere 121a of a rectangular shape in which the lower portion is opened to both sides of the lower end, and the support jaw 121b is symmetrically formed inside the coupling sphere 121a. It is bent so that it may be comprised.

Subsequently, a magnet accommodating body 121c in which a rectangular accommodating space is formed to accommodate the magnet 124 in the coupling sphere 121a as described above to accommodate the magnet 124 and integrally formed a handle toward the upper end thereof. ) And the magnet housing 121c is supported by the support jaw 121b and is stably coupled inside the neck portion 121 by sliding the inner portion through the coupling portion 121a formed in the neck portion 121. .

As described above, the magnet accommodating body 121c containing the magnet 124 is slid by the support jaw 121b so that the magnet accommodating body 121c can be more easily coupled to the neck portion 121 so that the magnet 124 is more easily deflected yoke 100. By being separated or combined in the) has an effect of improving the assembly of the deflection yoke (100).

As described above, the magnet fixing structure of the deflection yoke of the present invention has a separator 120 having a neck portion 121 coupled to a cathode ray tube of a cathode ray tube, and a rectangular shape preventing a change in characteristics of the convergence and pin cushion. In the magnet fixing structure of the deflection yoke including the magnet 124, to form a coupling sphere (121a) of the rectangular body with the lower side open to both sides of the lower end of the neck portion 121 and to support the inside of the coupling sphere (121a) The storage space for accommodating the magnet 124 is formed by bending the jaw 121b to be symmetrical, and the magnet housing 121c having the handle integrally formed at the front is formed to combine to store the magnet 124. One magnet 124 housing 121c can be easily coupled and separated from the neck portion 121, thereby improving the assemblability of the deflection yoke 100.

Claims (1)

In the magnet fixing structure of the deflection yoke comprising a separator 120 having a neck portion 121 coupled to the cathode ray tube of the cathode ray tube, and a magnet 124 having a rectangular shape for preventing the convergence and the characteristic change of the pin cushion. , A magnet 124 is formed by forming a coupling sphere 121a of a rectangular body having a lower side open at the side of the neck portion 121 and symmetrically supporting the support jaw 121b at an inner lower side of the coupling sphere 121a. The magnet fixing structure of the deflection yoke, characterized in that the storage space is formed that can be accommodated and configured by combining the magnet housing (121c) formed integrally with the handle forward.