KR100355929B1 - Device for prevent insulating resin leakage of fbt focusunit terminal - Google Patents

Abstract

The present invention can prevent the spread of the adhesive through the guide projections formed around the focus and the screen terminal (terminal) peripheral portion of the focus unit installed to one side of the FBT, thereby preventing the leakage of the insulating resin through the terminal coupling hole It provides a terminal resin leakage prevention device of the FBT focus unit which is, in particular, the terminal fixing projections 160 are provided around the focus and the screen terminals 130, 140 protruding to the rear surface 120 of the focus unit 110 The lower end of the focus and the screen terminal 130, 140 is installed to support and fixed, the outer groove of the focus and the screen terminal 130, 140 fixed to the terminal fixing projections 160, the adhesive groove 170 on the inside The terminal guide protrusion 180 is formed to be protruding.

Description

Resin leakage prevention device of terminal part of flyback transformer focus unit {DEVICE FOR PREVENT INSULATING RESIN LEAKAGE OF FBT FOCUSUNIT TERMINAL}

The present invention is a flyback transformer (hereinafter referred to as "FBT") which is a high voltage generator for supplying a high voltage to a CRT of a TV or a monitor, and focuses on the focus unit installed on one side of the FBT. Regarding the resin leakage preventing device of the terminal portion of the FBT focus unit that can prevent the spread of the adhesive through the guide protrusions formed in each, and thus prevent the leakage of the insulating resin through the terminal portion coupling hole, in particular, of the FBT focus unit Focus and screen that protrudes to the rear through the terminal coupling hole and the guide projections formed with an adhesive groove on the inner side around the terminal of the terminal are protrudingly installed, so that the focus and the screen protrude to the back of the focus unit and are connected to the cable. Guide stone hardened with adhesive on the periphery of the terminal Is formed, to prevent the leakage of the insulating resin to the outside through the terminal coupling hole, and to ensure that the focus and the screen terminal portion is firmly coupled and fixed, and to prevent product defects due to leakage of the insulating resin It relates to a resin leakage preventing device of a terminal portion of an FBT focus unit.

In general, the FBT focus unit has a terminal portion which draws out the focus and screen voltages to the rear surface of the focus unit so as to be connected to the slider which is extended to the substrate through the terminal coupling hole, thereby providing a variable resistance value of the slider. This allows the focus and screen voltages to be drawn through the cable.

In the coupling structure of the terminal unit of the conventional focus unit related to such a technique, as shown in FIG. 1, the focus and screen terminal units 30 and 40 are protruded from the rear surface 20 of the focus unit 10, respectively. The focus and screen terminal portions 30 and 40 are configured to be connected to a slider (not shown) which is protruded through the terminal coupling hole 50.

The conventional focus and screen terminal portions 30 and 40 having the coupling structure as described above are focused on the rear surface 20 of the focus unit 10, as shown in the cross-sectional view of FIG. ), One end of each of the focus and screen terminal parts 30 and 40 penetrates through the terminal coupling hole 50 to protrude out of the case, and the peripheral part of the focus and screen terminal parts 30 and 40 An adhesive (not shown) is applied to fix the terminal portion.

However, when the focus and screen terminal portions 30 and 40 are respectively installed on the rear surface 20 of the focus unit 10 and the epoxy resin, which is an insulating resin, is filled by vacuum injection for internal insulation, the insulating resin is used. There is a disadvantage that frequently leaks to the outside through the terminal coupling hole 50.

As described above, the epoxy resin leaking to the outside through the terminal coupling hole 50 is introduced into the slider that is exposed to the substrate tube, and thus, the focus and screen variable voltages cannot be drawn out properly, resulting in many defects such as product defects. This was there.

The present invention has been made in order to improve the above-described conventional problems, the object of the present invention is that the projections are formed on the back of the focus unit and the guide projections are filled with a hardened adhesive on the periphery of the focus and the screen terminal portion connected to the cable, FBT focus that prevents the leakage of the insulating resin to the outside through the coupling hole of the terminal, and accordingly the focus and the screen terminal unit is firmly coupled and fixed without flow, FBT focus that can prevent product defects due to leakage of the insulating resin It is to provide a resin leakage preventing device of the terminal of the unit.

1 is a view showing a terminal portion coupling structure of a typical FBT focus unit.

Figure 2 is a schematic perspective view showing the leakage preventing structure of the terminal portion provided on the back of the FBT focus unit according to the present invention.

3 is a rear structure diagram of a focus unit to which a terminal unit leakage preventing device of the present invention is installed;

Figure 4 is a main portion coupling state of the terminal guide projection installed in the focus unit of the present invention.

Explanation of symbols on the main parts of the drawings

110.Focus unit 120.Back

130 ... focus terminal 140 ... screen terminal

150 ... terminal coupling hole 160 ... terminal fixing projection

170 ... Adhesive groove 180 ... Terminal guide protrusion

As a technical means for achieving the above object, the present invention provides a focus and screen terminal portion protruding to the rear through the terminal coupling hole of the FBT focus unit,

A terminal fixing protrusion installed around a focus and screen terminal part protruding to the rear surface of the focus unit;

By providing a terminal preventing resin leakage prevention device of the FBT focus unit comprising a focus fixed to the terminal fixing projections and a guide projection protrudingly installed to form an adhesive groove on the inner side of the outer periphery of the screen terminal.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a schematic perspective view showing a terminal leakage preventing structure installed on the back of the FBT focus unit according to the present invention, Figure 3 is a rear structural view of the focus unit to which the terminal leakage preventing device of the present invention is installed, the rear surface of the focus unit 110 The focus and screen terminal parts 130 and 140 protrude from the 120, respectively, and the focus and screen terminal parts 130 and 140 are sliders (not shown) that extend out of the cover through the terminal coupling holes 150. It is installed to connect with

In addition, a terminal fixing protrusion 160 is formed around the focus and screen terminal portions 130 and 140 protruding to the rear surface 120 of the focus unit 110 to support the lower ends of the focus and screen terminal portions 130 and 140. It is installed to be fixed, and the terminal guide projection 180 is formed protruding from the outer peripheral edge of the focus and the screen terminal 130, 140 fixed to the terminal fixing projection 160, the adhesive groove 170 is formed on the inside Is done.

Referring to the operation and effect of the present invention made of such a configuration as follows.

As shown in FIGS. 2 to 4, the focus and screen terminal portions 130 and 140 are protruded to the rear surface 120 of the focus unit 110, respectively, and are connected to the focus and screen lead-out cables. The focus and screen terminal portions 130 and 140 are connected to a slider (not shown) that is communicated with the substrate through the terminal coupling hole 150 so that the focus and screen terminal parts 130 and 140 may be changed by the slider that is communicated with the substrate. It will be withdrawn to the outside.

In this case, the focus and screen terminal parts 130 and 140 protruding to the rear surface 120 of the focus unit 110 are provided with terminal fixing protrusions 160 around the focus and screen terminal parts 130 and 140. Support the lower part in a solid state so that it can be fixed.

In addition, the outer surface of the focus and the screen terminal 130, 140 is fixed to the terminal fixing projections 160, the rectangular terminal guide projection 180 is formed so that the adhesive groove 170 is formed on the inner side to protrude and install In the state where the focus and screen terminal parts 130 and 140 are fixed to the terminal fixing protrusion 160, an adhesive P for sealing the focus and screen terminal parts 130 and 140 and the terminal coupling hole 150. At the time of injection, the adhesive P is injected into the guide protrusion 180 having a rectangular shape to be cured.

Accordingly, when vacuum-injecting an epoxy resin for insulation into the focus unit 110, a guide protrusion 180 may be disposed between the lower portion of the focus and screen terminal portions 130 and 140 and the terminal coupling hole 150. By being closed by the adhesive cured by, it is possible to completely prevent leakage of the insulating resin is injected through the terminal coupling hole (150).

As described above, according to the resin leakage preventing device of the terminal unit of the FBT focus unit of the present invention, a guide protrusion is formed on the periphery of the focus unit and the screen terminal unit which protrudes on the rear surface of the focus unit and is connected to the cable, and the adhesive is filled and cured. It prevents the leakage of insulating resin to the outside through the hole, and accordingly, the focus and screen terminal parts are firmly coupled and fixed without flow, and there is an excellent effect of preventing the defect of the product due to leakage of the insulating resin. .

While the invention has been shown and described with respect to specific embodiments thereof, it will be appreciated that various changes and modifications can be made in the art without departing from the spirit or scope of the invention as set forth in the following claims. Those of ordinary skill will want to know easily.

Claims (2)

Focus and screen terminal parts 130 and 140 are protrudingly installed on the rear surface 120 of the focus unit 110, and the focus and screen terminal parts 130 and 140 are respectively connected to the cover through the terminal coupling hole 150. In the terminal part coupling structure of the FBT focus unit provided to connect with the slider which is extended to the board tube, A focus and screen terminal unit 130 and 140 installed through the terminal coupling hole 150 of the FBT focus unit 110 and protruding to the rear surface 120; A terminal fixing protrusion 160 mounted around the focus and screen terminal portions 130 and 140 protruding to the rear surface 9120 of the focus unit 110; Focus and fixed to the terminal fixing projections 160 and the terminal guide projections 180 are formed so as to protrude so that the adhesive groove 170 is formed on the inner periphery of the screen terminal portions 130, 140, the outer periphery Resin prevention device for terminal part of FBT focus unit. The FBT of claim 1, wherein the terminal guide protrusion 180 protrudingly installed to form an adhesive groove 170 on an inner circumference of the focus and screen terminal parts 130 and 140 is formed in a quadrangular shape. Leakage prevention device for the terminal of the focus unit.