KR200216039Y1 - Deflection yoke - Google Patents

Abstract

The present invention relates to a deflection yoke, in which a deflection yoke including a support coil in which at least a coil is wound a plurality of times and a support coil configured to support the coil by being erected at both ends of the support beam, face each other. It characterized in that it comprises a protective piece in the shape of a substantially inverted alphabetic character (자) that is elastically fixed by the fixing means formed on the top end of the support plate to cover the coil. Therefore, it prevents the contact and bumping from the outside that can be applied to the cancel coil that acts to cancel the electromagnetic wave of the harmful components to the human body, and protects the cancel coil to prevent the accumulation of dust and foreign matter By providing a protective piece there is an excellent effect to maximize the function of the cancel coil.

Description

Deflection yoke

The present invention relates to a deflection yoke, and more specifically, a deflection provided with a protective piece so as to prevent contact and bumping from the outside that may be applied to a cancel coil that acts to cancel an electromagnetic wave of a component harmful to a human body. It's about York.

Generally deflecting the electron beam emitted from the electron gun of the cathode ray tube

The deflection yoke 100 includes two sets of vertical deflection coils 110 for deflecting the electron beam in the vertical direction and two sets of horizontal deflection coils for deflecting the electron beam in the horizontal direction (not shown). And a separator 120 that accurately distinguishes and vertically insulates the vertical deflection coil 110 and the horizontal deflection coil.

At this time, the separator 120 has a structure having a neck portion 121 on which the electron gun is mounted, and a flange portion 122 mounted on the rear surface of the CRT.

The R (Red), G (Green) and B (Blue) electron beams emitted from the electron gun of the cathode ray tube by the deflection yoke 100 having the above configuration are deflected at a predetermined angle to pass through the through holes formed in the shadow mask. An image is formed on the screen of a television by sealing light on a stripe of each fluorescent surface mounted on an inner circumference of a panel.

At this time, the electron beam emitted from the electron gun is mostly sealed on the fluorescent surface by the horizontal deflection coil and the vertical deflection coil 110 of the deflection yoke 100, but some electrons are also emitted as a harmful component to the human body.

The cancel coil 130 serves to cancel such harmful electromagnetic waves. The cancel coil 130 includes a bobbin 131 fixed to both sides of the flange portion 122 of the separator 120, and The bobbin 131 is formed of a coil 132 wound a plurality of times.

Here, the bobbin 131 is composed of a support beam 131a in which the coil 132 is wound a plurality of times, and a support plate 131b supporting the coil 132 by being upright molded at both ends of the support beam 131a. do.

However, since the deflection yoke 100 having the above configuration is opened in a state in which the coil 132 wound several times on the bobbin 131 is exposed to the outside, parts are damaged and function due to shorts due to easy contact or collision during assembly work. Loss is frequently caused, and there is a big disadvantage of large loss of function of the component due to the deposition of foreign matter such as dust.

Accordingly, the present invention has been made to solve the above problems, its purpose is not to contact and bump from the outside that can be applied to the cancel coil that acts to cancel the electromagnetic wave of a component harmful to the human body It is to provide a deflection yoke that can be blocked in, and provided with a protective piece to prevent the accumulation of dust and foreign matter to maximize the function of the cancel coil.

1 is a perspective view showing a general deflection yoke.

Figure 2 is a perspective view showing a deflection yoke according to the present invention.

Figure 3 is an exploded perspective view showing a cancel coil applied to the deflection yoke according to the present invention.

Explanation of symbols on the main parts of the drawings

10: fixing means 11: lower limit fixing piece

12: upper limit elastic piece 20: protective piece

100: deflection yoke 110: vertical deflection coil

120: separator 121: neck portion

122: flange 130: cancel coil

131: bobbin 131a: support beam

131b: support plate 132: coil

The present invention for achieving the above object, in the deflection yoke comprising at least a coil coil is wound up a plurality of times and a cancel coil consisting of a support plate for supporting the coil by upright molded at both ends of the support beam, The technical feature of the technical configuration is that it comprises a protective piece in the shape of an approximately inverted alphabetic shape, which is elastically fixed by a fixing means formed at an uppermost end of the support plate to cover the coil.

Hereinafter, the deflection yoke according to the present invention will be described with reference to FIGS. 2 and 3.

2 is a perspective view showing a deflection yoke according to the present invention, Figure 3 is an exploded perspective view showing a cancel coil applied to the deflection yoke according to the present invention, the same name and the same for the same configuration having the same function as the conventional configuration in the figure. We will use the notation code.

As illustrated in FIG. 2, the deflection yoke 100 according to the present invention cancels the harmful component of the electron beam emitted from the separator 120 and the separator 120 equipped with the horizontal deflection coil and the vertical deflection coil 110 at inner and outer circumferences. It consists of a cancel coil (130).

In this case, the cancel coil 130 is composed of a bobbin 131 fixed to both sides of the flange portion 122 of the separator 120 and a coil 132 wound around the bobbin 131 a plurality of times. 131 is composed of a support beam 131a in which the coil 132 is wound a plurality of times, and a support plate 131b upright formed at both ends of the support beam 131a to support the coil 132.

In addition, the coil 132 is covered by a protective piece 20 in the shape of an approximately alphabet inverted oil-shaped, which is elastically fixed by the fixing means 10 formed at the uppermost end of the support plate 131b facing each other. It can be free from contact, impact, etc. that can be applied from the outside, it is possible to overcome the accumulation of dust and foreign matter can be maximized the function of the cancel coil (130).

On the other hand, the fixing means 10 is formed by projecting the lower limit fixing piece 11 protruded on both sides of the upper end of the support plate 131b facing each other, and the center of the upper end of the support plate 131b facing each other The upper limit elastic piece 12 is comprised.

Here, when the alphabet inverted oil-shaped protective piece 20 is pressed downward from the upper side of the bobbin 131 is elastically fixed between the lower limit fixing piece 11 and the upper limit elastic piece 12 It can be seen that the assembly work also has a very easy operation.

As described above, according to the deflection yoke according to the present invention, it prevents the contact and bumping from the outside that may be applied to the cancel coil, which acts to cancel the electromagnetic wave of a component harmful to the human body, and the accumulation of dust and foreign substances. By providing a protective piece to protect the cancel coil to prevent the has an excellent effect to maximize the function of the cancel coil.

Claims (2)

In a deflection yoke comprising at least a support beam in which a coil is wound a plurality of times and a cancel coil formed upright at both ends of the support beam to support the coil, A deflection yoke, comprising: a protective piece in the shape of a substantially alphabetical inverted magnet, which is elastically fixed by a fixing means formed at an uppermost end of the support plate facing each other. The method of claim 1, The fixing means, A lower limit fixing piece protrudingly formed at both ends of the uppermost end of the support plate facing each other; A deflection yoke, characterized in that the upper limit elastic piece protruded in the center of the upper end of the support plate facing each other.