KR200167704Y1 - Funnel welding and fixing jig for video phone tube - Google Patents

Abstract

For the video phone tube, in order to prevent the poor connection due to the flow of the channel (F) when the screen panel (SP) and the channel (F) are bonded in the channel fusion jig for the video phone tube, In the main body 51 of the channel fusion jig, an insertion part 1 for supporting the lower end of the channel F inserted into the support part 50 is formed to prevent the poor fusion between the channel and the channel.

Description

[Designation name]

Funnel Fusion Jig for Video Phone Tube

[Brief Description of Drawings]

1 is a perspective view showing a channel fusion jig for a video phone tube according to the present invention.

2 is a cross-sectional view showing the main part of the present invention,

3 is an exploded perspective view showing a typical video phone tube,

4 is a partial cross-sectional view showing a fusion jig for a conventional video phone tube.

* Explanation of symbols for main parts of the drawings

1: Insertion part

[Detailed Description of Design]

(Industrial use field)

The present invention relates to a channel fusion jig for a video phone tube, and more particularly, to a channel fusion jig for a video phone tube that can prevent the shaking of the channel supported by the jig.

(Conventional technology)

In general, a cathode ray tube is configured to emit light by striking phosphors that are heated and heated by a heater, are connected and accelerated by an electron gun, and are screened by a shadow mask and sequentially arranged.

The structure of the cathode ray tube is a panel to which the phosphor is applied and a shadow mask is attached, a panel to which the panel is coupled, a panel to which the deflecting yoke is attached to the outer circumference, and to which the deflection yoke is attached, and the electron gun is connected to the panel. It consists of an inherent channel.

Here, the cathode ray tube cannot be used on the wall because the electron gun is positioned on the same axis as the tube axis and the electron beam is used to increase the length of the cathode ray tube and increase its volume.

That is, the cathode ray tube has a long length so that it cannot be used as a wall-mounted type, and a flat panel display device has been developed for this purpose.

Here, since the flat panel display element is expensive, it cannot be used in a low-cost machine such as a video phone, and thus a video phone tube is constructed in which the tube axis and the electron beam axis are orthogonal.

The video phone tube is attached to the front panel FP in a planar shape as shown in FIG. 3, a screen panel SP formed in a curved shape so as to conform to the bending angle of the electron beam, and the screen panel SP. And an electron gun (not shown) and a channel F including a neck N positioned on an orthogonal axis with the front panel FP.

Of course, the above-described deflection means are also installed in the video phone tube.

The video phone tube having the configuration as described above is usually connected to a frit seal (not shown), etc. At this time, the channel F is seated on the jig main body 51 in which the support 50 is formed, as shown in FIG. The front panel (not shown) is attached to the screen panel SP attached thereto.

That is, by mounting and firing the screen panel (SP) on the upper portion of the channel (F) is to attach the channel (F) and the screen panel (SP).

Of course, the support part 50 formed in the jig main body 51 is formed to be the same as the curvature of the channel F, and is formed so that the inserted channel F is firmly supported.

(Purpose of designation)

However, as described above, inserting the channel (F) into the support 50 of the jig main body 51, seating the screen panel (SP) on the upper portion and firing and bonding it to hold the lower portion of the channel (F) Since the part is not formed in the jig main body 51, there is a problem in that the screen panel SP and the channel F are not coupled correctly during firing.

That is, since the center of the tube axis is incorrect, the landing of the electron beam on the front panel FP is not accurate, resulting in poor image quality.

Accordingly, an object of the present invention is to prevent channeling defects due to the flow of the channel when joining the screen panel and the channel in the channel fusion jig for videophone tube, and to prevent the image quality defect caused by the channel fusion for the videophone tube. In providing a jig.

(Means to solve problems)

In order to realize the above object, the present invention is characterized by forming an insert for supporting the lower end of the channel is inserted into the support in the main body of the channel fusion jig for video phone tube.

(Action)

Inserting the channel into the support and inserting the channel into the insertion part securely supports the top and bottom of the channel, thereby preventing the flow of the channel.

That is, after inserting the channel into the support of the jig main body, the tube axis is correctly maintained by preventing the channel from shaking when the channel is fused.

(Example)

FIG. 1 is a perspective view showing a channel fusion splicing jig for a video phone tube according to the present invention. F) is inserted and supported sequentially.

That is, the upper end of the channel F is supported by the support 50, and the lower end of the channel F is supported by the insertion unit 1.

When the channel F is inserted into the jig as described above, the support panel 50 and the insertion unit 1 are firmly supported. The screen panel SP is seated on the upper portion of the channel F and then fused. The process will be carried out.

Of course, the diameter of the insertion part 1 is formed to have an error within 1 mm from the neck (N) diameter of the lower portion of the channel (F) to at least prevent the flow after the insertion of the channel (F).

As shown in FIG. 2, the support state of the channel F and the screen panel SP is as shown in FIG. 2 so that the channel 50 maintains the tube axis center with respect to the screen panel SP. It is supported exactly by the press part 1.

When the channel (F) and the screen panel (SP) are inserted into the jig and the center of the tube axis is correctly maintained, the predetermined panel is fused to fuse the screen panel (SP) and the channel (F). A frit seal (not shown) is interposed between the screen panel SP and the screen panel SP.

Here, the channel F is projected to the lower end through the insertion portion 1, so that only the left and right flow of the channel F is supported.

(Effect of design)

As described above, the present invention forms an insertion part for supporting the neck at the lower end side of the channel in the channel fusion jig for video phone tube, so that the image quality can be improved by accurately maintaining the center of the tube axis when the channel and the screen panel are fused. It is.

Claims (1)

In a channel fusion splicing jig for a video phone tube, in which a support part 50 is formed in which the upper end of the channel F is inserted into and supported by the jig main body 51, the lower part of the channel F is located below A channel welding jig for a video phone tube, characterized by forming an insertion part (1) having a diameter formed within an error of less than the diameter of the neck (N).