KR20030012379A - A permailoy correction plate combination structure of deflection yoke - Google Patents

Abstract

PURPOSE: A permalloy corrector fixing structure for a deflection yoke is provided to effectively correct mis-convergence by preventing the permalloy corrector from being moved by an external impact. CONSTITUTION: A permalloy corrector fixing structure comprises a fixing piece(132) protruded from the outer periphery of a screen part(130) of a deflection yoke, and which has an insertion groove(132a) formed within the fixing piece; and a permalloy corrector(135) which is curved to correspond to the outer periphery of the screen part and accommodated into the insertion groove formed at the fixing piece. Thus, the permalloy corrector is firmly fixed to the screen part, to thereby prevent the permalloy corrector from being moved by an external impact applied to the deflection yoke.

Description

A permailoy correction plate combination structure of deflection yoke}

The present invention relates to a permalloy corrector fixing structure of a deflection yoke, and more particularly, is coupled to a separator to improve convenience and coupling for assembling a permalloy compensator for compensating reverse crossover and misconvergence of a deflection yoke. It relates to a permalloy correction body coupling structure of the deflection yoke to enable the function of.

In general, a deflection yoke is a device for deflecting an electron beam emitted from an electron gun of a cathode ray tube, and includes a separator for precisely distinguishing the positions of the horizontal deflection coil and the vertical deflection coil and electrically insulating each other.

A general deflection yoke performing the above function will be described with reference to FIG. 1.

1 is a perspective view showing a deflection yoke to which a permalloy corrector coupling structure according to the related art is applied.

As shown in FIG. 1, the conventional separator 100 is formed of a wire guide part 111 and a yoke clamp fastening part 112 at an upper portion thereof, and thus a neck part 110 at which a cathode ray tube is attached, and a rear side of a brown tube. It consists of a flange portion 120 to be mounted on, and the screen portion 130 of the shape extending in a trumpet shape downward between the neck portion 110 and the flange portion 120.

The separator 100 has a horizontal deflection coil and a vertical deflection coil mounted on the inner and outer circumferences respectively to deflect an R, G, B electron beam emitted from an electron gun of a cathode ray tube at a predetermined angle. Alternatively, a deflection angle may be shifted depending on the wound shape, resulting in reverse crossover and misconvergence, thereby failing to realize a normal image.

In this case, the reverse cross and misconvergence are normally corrected using the permalloy corrector 135 made of an alloy such as nickel (Ni) or iron (Fe), and the permalloy corrector 135 is Curved to correspond to the mounting groove 131 formed in the horizontal direction on the outer periphery of the screen portion 130, but fixed to the structure to bond to the mounting groove 131 by applying an adhesive (131a) to the contact surface of the permalloy corrector 135 do.

However, the position of the permalloy corrector 100 of the deflection yoke 10 according to the related art is completely removed or partially separated from the seating groove 131 formed at the outer circumference of the screen unit 130 by an external impact or shaking. In case of shaking or shaking, there is a problem that cutaneous problems in which the cathode ray tube itself cannot be corrected due to the reverse crossover and misconvergence of the electron beam cannot be corrected.

In addition, since the work of joining the permalloy corrector 135 of the deflection yoke 10 with the adhesive 131a through the mounting groove 131 is cumbersome, productivity for the assembly of the deflection yoke 10 is reduced. When the mutual bonding between the corrector 135 and the seating groove 131 of the screen unit 130 is inferior, the vibration of the permalloy corrector 135 may be caused by a magnetic field or an external impact, resulting in a large noise. there was.

Therefore, the main object of the present invention is to form a fixing piece for interposing the permalloy correction body in the receiving method on the outer periphery of the screen of the separator to prevent the position of the permalloy correction body to be changed even when the impact or shake in the deflection yoke An object of the present invention is to provide a method for effectively performing correction such as reverse crossover and misconvergence of an electron beam.

Another object of the present invention is to make it easy to fix the permalloy correction body on the screen outer periphery of the separator without using an adhesive to shorten the production process in the assembly process of the deflection yoke to improve the productivity of the deflection yoke. There is.

1 is a perspective view showing a deflection yoke to which a permalloy corrector fixing structure according to the related art is applied.

2 is a perspective view showing a deflection yoke to which the permalloy corrector fixing structure according to the present invention is applied.

Explanation of symbols on the main parts of the drawings

100: separator 110: neck portion

111: wiring guide part 112: yoke clamp connection part

120: flange portion 130: screen portion

131: mounting groove 131a: adhesive

132: fixing piece 132a: insertion groove

135: Permalloy Corrector

In order to achieve the above object, the permloy corrector fixing structure of the deflection yoke of the present invention fixes the formally corrector to the outer periphery of the screen portion of the deflection yoke, and combines the permroy corrector of the deflection yoke to correct the reverse crossover and misconvergence of the electron beam. In the structure, a fixed piece protruding in a horizontal direction at a predetermined position of the screen outer periphery to form an insertion groove therein, and a permalloy correcting body curved to correspond to the screen outer periphery so as to be interposed in the insertion groove of the fixing piece The construction is a basic feature of the technical construction.

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

2 is a perspective view illustrating a deflection yoke to which a permalloy corrector coupling structure according to the present invention is applied. In this case, the same configuration and the same reference numerals will be used for the same configuration having the same function as the conventional configuration.

As shown in FIG. 2, the permalloy correction body fixing structure of the deflection yoke of the present invention is protruded along the outer circumference in a horizontal direction at a predetermined position of the outer circumference of the screen unit 130 to form an insertion groove 132a therein. It consists of a fixed piece 132 and a permalloy corrector 135 curved to correspond to the outer periphery of the screen unit 130 so as to be interposed in the insertion groove 132a of the fixing piece 132.

The fixing piece 132 is molded into a substantially depressed shape.

The fixing piece 132 may cut a portion of the lower part of the depression shape so that the permalloy corrector 135 may be fixed to the insertion groove 132a through the lower opening.

The fixing piece 132 is molded to a size such that the permalloy corrector 135 is inserted into the insertion groove 132a, thereby allowing the permalloy corrector 135 to be fixed without shaking.

Referring to the operation of the present invention as follows.

First, the permalloy corrector 135 curved at a position corresponding to any one of a left end and a right end of the fixing piece 132 formed at the outer circumference of the screen unit 130 of the separator 100 may be formed. It adheres to the outer periphery.

Subsequently, when the permalloy corrector 135 is pushed into the insertion groove 132a while the permalloy corrector 135 is in close contact with the outer periphery of the screen unit 130, the permalloy corrector 135 is the screen unit 130. Sliding from the outer periphery is naturally inserted into the insertion groove (132a).

The permalloy corrector 135 forcibly fitted into the fixing piece 132 integrally formed at the outer circumference of the screen unit 130 is completely inwardly inserted into the insertion groove 132a of the fixing piece 132 to be impacted from the outside. It is firmly fixed without shaking even when received, thereby effectively performing reverse cross and misconvergence correction of the electron beam.

As described above, the fixing piece 132 of the yoke of the deflection yoke of the present invention is formed to protrude in a horizontal direction at a predetermined position of the outer circumference of the screen unit 130 to form an insertion groove 132a therein. ) And a permalloy corrector 135 that is curved to correspond to the outer periphery of the screen unit 130 so as to be interposed in the insertion groove 132a of the fixing piece 132. By firmly fixing to the screen unit 130 of (100), the deflection yoke (10) to overcome the shaking, such as the position of the permalloy corrector 135 is changed even in the external shock or shake, reverse crossover and misconvergence of the electron beam There is an effect to effectively perform the correction of.

Claims (1)

In the combination structure of the deflection yoke permalloy corrector for fixing the formalism corrector 135 on the outer periphery of the screen unit 130 of the deflection yoke 10 to correct reverse crossover and misconvergence of the electron beam, A fixing piece 132 which protrudes along the outer periphery in a horizontal direction at a predetermined position of the outer periphery of the screen unit 130 to form an insertion groove 132a therein; Permalloy corrector coupling structure of the deflection yoke, characterized in that composed of a permalloy corrector 135 curved to correspond to the outer periphery of the screen portion 130 so as to be interposed in the insertion groove (132a) of the fixing piece (132).