KR0137180Y1 - Anti-static electricity structure of deflection yoke - Google Patents

Abstract

The present invention relates to an antistatic structure of a deflection yoke, in which wing pieces are connected to both lower sides of a T-shaped fixing piece, and an antistatic member formed of a nonmagnetic metal is wound around a deflection yoke C / F coil. An antistatic structure is formed between the magnetic iron piece and the yoke clamp to discharge the static electricity of the deflection yoke so that the correction member and the yoke clamp immediately remove the static electricity induced by each by the distance difference between the cathode ray tube.

Therefore, during the process of coupling the deflection yoke to the cathode ray tube, the static electricity remaining in the deflection yoke can be prevented from being discharged to the human body, and since the antistatic member is formed of a nonmagnetic metal, it does not form a magnetic field, thus affecting the deflection force. Do not.

Description

Antistatic Structure of Deflection Yoke

1 is a front view of the deflection yoke.

2 is a top plan view of a conventional deflection yoke.

3 is a perspective view of an antistatic member of the deflection yoke according to the present invention.

4 is a plan view of the deflection yoke to which the antistatic member of the deflection yoke of FIG. 3 is attached.

* Explanation of symbols for main parts of the drawings

DY: Deflection yoke VC: Vertical deflection coil

HC: horizontal deflection coil 11: neck portion

12 screen portion 13 coil separator

14: engaging piece 15: yoke clamp

16: E-shaped iron bar 21: fixed piece

20: antistatic member 22: coupling hole

23: wing piece 24: fixed protrusion

The present invention relates to an antistatic structure of a deflection yoke (DY), and more specifically, to an electric deflection yoke that prevents static electricity generated between a yoke clamp of an deflection yoke and an e-shaped iron piece. The prevention structure is related.

In general, a cathode ray tube (CRT) such as a TV receiver or a monitor is equipped with a deflection yoke for deflecting an electron beam emitted from an electron gun to form a screen by scanning the electron beam in a predetermined manner.

As the size of the screen increases, the plane becomes flat, the pixels become smaller, and the thickness of the cathode ray tube becomes thinner, the deflection angle becomes larger and the importance of the deflection yoke increases to obtain high resolution.

The deflection yoke DY is a pair of horizontal deflection coils (not shown) inside the coil separator 13 including the neck portion 11 and the screen portion 12, as shown in FIGS. 1 and 2. HC) is mounted, and a pair of vertical deflection coils VC are mounted on the outside of the coil separator 13, and the outer side of the coupling piece 14 for fixing the deflection yoke DY to the cathode ray tube is mounted. The clamp 15 is attached.

In addition, as the sawtooth wave is applied to the vertical and horizontal deflection coils (VC) (HC) to form a magnetic field, the scanning positions of the red (R), green (G), and blue (B) electron beams emitted from the electron gun are determined. Done. At this time, the VCR (vertical center raster) phenomenon occurs in the middle of the screen than the R-beam and B-beam which are located at both sides of the G-beam, which is N-valued in the middle child, and the E-shaped iron piece (! A coma free coil (hereinafter referred to as a C / F coil) wound around 6) is provided on the neck portion 11 of the deflection yoke DY.

Since the cathode ray tube coupled to the conventional deflection yoke DY is applied with a high voltage during operation, a high voltage static electricity is generated on the outer wall of the cathode ray tube by the high voltage applied inside the cathode ray tube, and the static electricity is removed. In order to do this, the outer wall of the cathode ray tube was treated with graphite.

At this time, since the voltage applied to the horizontal deflection coil HC inside the deflection yoke DY may cause static electricity and discharge, the deflection yoke DY assembly of the cathode ray tube cannot be treated with graphite.

Therefore, due to the distance difference between the cathode ray tube of metal structures such as the E-shaped iron piece 16 or the yoke clamp 15 of the C / F coil, the static electricity is induced to each metal structure, and spark discharge occurs with each other. In order to prevent the metal structure is coated with an insulating bond or the like.

However, there is a problem that the static electricity remaining in the metal structure of the deflection yoke (DY) without being discharged is discharged to the human body during the assembly process with the cathode ray tube.

Accordingly, an object of the present invention is to provide an antistatic structure of a deflection yoke, which can prevent static electricity induced in the metal structure of the deflection yoke and prevent discharge to the human body during the assembly process with the cathode ray tube.

In order to achieve the above object, the present invention is a horizontal and vertical deflection coils are wound inside and outside of a Coell separator composed of a neck part and a screen part, so that the coil is deflected in the deflection yoke for deflecting a beam emitted from an electron gun. It characterized in that the antistatic structure of the deflection yoke configured to form a fixing protrusion on the outer side of the engaging piece formed on the neck portion of the separator, the antistatic member is in close contact with the antistatic member to the protrusion.

Hereinafter, with reference to the accompanying drawings will be described in detail the antistatic structure of the deflection yoke according to the present invention.

3 is a perspective view of an antistatic member of a deflection yoke according to the present invention, and the same components as those of FIG. 1 illustrate the present invention using the same reference numerals.

As shown in FIG. 3 showing the antistatic member 20 of the deflection yoke according to the present invention, a coupling hole 22 is formed in the upper center of the T-shaped fixing piece 21, and the The wing piece 23 is connected to both lower sides, and the fixing piece 21 and the wing piece 23 are formed of a nonmagnetic magnetic material.

As shown in FIG. 4, the antistatic member 20 of the deflection yoke DY is disposed between the E-shaped iron piece 16 on which the C / F work of the deflection yoke DY is wound and the yoke clamp 15. The coupling hole 22 is interlocked with and fixed to the fixing protrusion 24 protruding from the outside of the coupling piece 14 on the neck portion 11. In addition, the fixing piece 21 is bent in the same circumference as the coupling piece 14 so as to be in close contact with the E-shaped iron piece 16 and the yoke clamp 15 and electrically conducting, and the wing piece 23 is opposite. It is bent in the direction.

Therefore, the antistatic member 20 of the deflection yoke DY is interposed between the E-shaped iron piece 16 and the yoke clamp 15, and is electrically connected to each other by the distance difference from the cathode ray tube. Remove static electricity immediately. In addition, because it forms a non-magnetic metal does not form a magnetic field does not affect the deflection force.

As described above, the present invention has a wing piece connected to both lower sides of the T-shaped fixing piece, and an anti-static member formed of a nonmagnetic metal is formed between the E-shaped iron piece and the yoke clamp having the C / F coil of the deflection yoke wound. An antistatic structure is formed to discharge the static electricity of the deflection yoke. Therefore, the static electricity remaining in the deflection yoke is prevented from being discharged to the human body during the process of coupling the deflection yoke to the cathode ray tube.

Claims (3)

In the deflection yoke for deflecting the beam radiated from the electron gun, the horizontal and vertical deflection coils are wound inside and outside the coil separator including the neck part and the screen part, and fixed to the outer side of the coupling piece formed on the neck part of the coil separator. An antistatic structure of a deflection yoke configured to prevent static electricity by forming a protrusion and inserting an antistatic member on the protrusion to closely contact the E-shaped iron piece on which the C / F coil is wound and the yoke clamp. The method of claim 1, wherein the antistatic member is formed in a structure in which a fixing piece is formed in the fixing hole formed in the upper portion of the T-shaped to fit into the fixing projections of the coupling piece, the wing piece is integrated on both sides of the lower end of the fixing piece. Antistatic structure of deflection yoke. 3. An antistatic structure according to claim 1 or 2, wherein said antistatic member is formed of a nonmagnetic material.