KR20020018407A - A fixing structure for neck band of deflection yoke - Google Patents

Abstract

PURPOSE: A neck band fixing structure of a deflection yoke is provided to facilitate assembling and minimize damage and effect to a coma coil occurred due to external impact or vibration. CONSTITUTION: A neck band structure of a deflection yoke comprises an incision(43), a neck part(40), and a neck band. The incision(43) is formed on a rear part of a separator(10). The neck part(40) has a setting protrusion(41) and a guide protrusion(42) on the outer surface of the rear part of the separator(10). The neck band is formed by changing locations of a setting hole and a guide hole, each corresponding to the setting protrusion(41) and the guide protrusion(42). The neck band bands as an arc of a circle. Both ends of the neck band are bent outward to form coupling pieces(113) jointed to each other by a screw. The joint of the coupling pieces(113) is allocated to be away from a coma coil(30).

Description

A fixing structure for neck band of deflection yoke}

The present invention relates to a neckband fixing structure of the deflection yoke, and more particularly, the neckband of the neckband facing the coma coil of the deflection yoke by changing the position of the neckband setting hole and the guide hole corresponding to the neck setting protrusion and the guide protrusion. The present invention relates to a neckband fixing structure of a deflection yoke for minimizing the impact on the coma coil or damage to the coma coil by external impact or shaking by positioning the coupling piece or the fastening means away from the coma coil.

The deflection yoke, which deflects the electron beam emitted from the electron gun of the cathode ray tube and realizes an accurate image, includes a vertical deflection coil for deflecting the electron beam in the vertical direction, a horizontal deflection coil for deflecting the electron beam in the horizontal direction, and the vertical deflection coil; It consists of a separator that can precisely classify the position of the horizontal deflection coil and can be 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 and pass through the through-holes formed in the shadow mask. A normal image is realized on the screen of a television by encapsulating and emitting a stripe of each of the fluorescent surfaces mounted on the inner circumference.

On the other hand, among 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 must be designed to focus on the holes of the shadow mask, respectively, and 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 occurs when the electron beam deviates to the outer circumference of the stripe, the image of the screen is not clear. .

Here, one example of the mis-landing is a coma value generated because the deflection sensitivity with respect to the center beam is relatively stronger than the deflection sensitivity caused by the pair of side beams.

This coma value should eventually be removed as much as possible, since it will cause deterioration of image quality throughout the television screen, and the function will be performed by the coma coil.

1 is a plan view showing a neckband fixing structure of a deflection yoke according to the prior art.

In the separator 10, a neck having a cutout 43 formed at the rear side of the separator 10 and projecting the setting protrusion 41 and the guide protrusion (not shown) on the rear outer periphery of the separator 1 ( 40 and a neck band 50 formed with a setting hole 51 and a guide hole (not shown) corresponding to the setting protrusion 41 and the guide protrusion (not shown) formed on the outer circumference of the neck 40. It is composed of

The neck band 50 is bent in an arc shape and bent outward at both ends to form a coupling piece 53, and is coupled to the coupling piece 53 by a fastening means 54 such as a screw to face the coma coil 30. Is configured.

As described above, in the conventional neckband fixing structure, the coupling piece 53 and the fastening means 54 of the neckband 50 are configured to face the coma coil 30, thereby causing inconvenience in assembly work or external impact. Or there is a problem that may affect the damage or coma coil 30 of the coma coil 30 by shaking.

Therefore, the main object of the present invention is to change the position of the necking band and the setting hole of the neck band corresponding to the setting projection and the guide projection of the neck in the position of the coupling piece or fastening means of the neckband facing the coma coil of the deflection yoke in the coma coil By locating it off to minimize the interference of the coma coil to facilitate the assembly work, and to minimize the impact on the damage or coma coil of the coma coil due to external impact or shaking.

1 is a plan view showing a neckband fixing structure of the deflection yoke according to the prior art.

Figure 2 is a plan view showing a neckband fixing structure of the deflection yoke according to the present invention.

Explanation of symbols on the main parts of the drawings

10; Separator 30; Coma Coil

40; Neck 41; Setting protrusion

42; Guide protrusion 43; Incision

110; Neckband 111; Setting ball

112; Guide ball 113; Joining piece

114; Fastening means

In order to achieve the above object, the present invention forms a cutout groove at the rear side of the separator and corresponds to the neck protruding the setting protrusion and the guide protrusion on the rear outer periphery of the separator, and the setting protrusion and the guide protrusion formed on the outer periphery of the neck. It is composed of a neck band configured to be formed on the bending portion of the arc by changing the position of the setting ball and the guide hole, and to form a coupling piece by bending outwardly both ends of the arc-shaped band, and to fasten the coupling piece by a fastening means such as a screw. It is a technical feature of the technical configuration that the position of the coupling piece and the fastening means is configured to be positioned away from the coma coil.

Referring to the preferred embodiment of the present invention configured as described above in detail with reference to the drawings as follows.

Figure 2 is a plan view showing a neckband fixing structure of the deflection yoke according to the present invention.

As shown in FIG. 2, the deflection yoke neckband fixing structure of the present invention forms a cutting groove 43 at the rear side of the separator 10 and sets the setting protrusion 41 and the guide protrusion at the rear outer periphery of the separator 10. The position of the setting hole 111 and the guide hole 112 corresponding to the neck 40 protruding from the 42 and the setting protrusion 41 and the guide protrusion 42 formed on the outer circumference of the neck 40 is determined. It is composed of a neck band 110 formed by changing.

The neck band 110 is bent in an arc shape and bent outwardly to both ends to form a coupling piece 113, the coupling piece 113 is fastened by a fastening means 114 such as a screw, the coupling piece 113 And the fastening means 114 are configured to be positioned away from the coma coil 30.

Therefore, according to the present invention, the influence on the coma coil 30 by the neck band 110 can be minimized.

As described above, the present invention is to change the position of the setting hole and the guide hole of the neck band corresponding to the setting projection and the guide projection of the neck to position the position of the coupling piece or fastening means of the neck band facing the coma coil of the deflection yoke By positioning away from work, the impact on the coma coil from damage or coma due to external shock or shaking can be minimized, and the interference of the coma coil is minimized. There is.

Claims (1)

In the neckband fixing structure of the deflection yoke, A neck 40 having a cutout 43 formed at the rear side of the separator 10 and protruding the set protrusion 41 and the guide protrusion 42 on the rear outer periphery of the separator 10 and the neck 40. By changing the position of the setting hole 111 and the guide hole 112 corresponding to the setting projection 41 and the guide projection 42 formed on the outer periphery of the arc formed on the bending portion of the arc and bent in both ends of the arc bending It is bent to form a coupling piece 113 is composed of a neck band configured to be fastened by a fastening means 114, such as a screw to the coupling piece 113, the position of the coupling piece 113 and the fastening means 114 is Neckband fixing structure of the deflection yoke, characterized in that configured to be positioned away from the coma coil (30).