KR100290246B1 - Focus pack of fly back transformer - Google Patents

Abstract

The present invention relates to a focus pack installed on one side of a case of an FBT, and in particular, a focus pack main body 130 into which a substrate 110 in which the focus and screen resistor patterns 140 and 140 ′ are rolled in parallel to each other is interpolated. A focus and screen output terminal piece (200, 200 ') installed to draw the focus and screen voltage to both sides of the substrate insertion groove (120) of the substrate and the focus and screen output terminal piece (200, 200') and The focus and screen resistor patterns 140 on the substrate 110 are in contact with the focus and screen voltage drawing sliders 260 and 260 ′ in which the terminal pieces 250 are interpolated, and thus the sliders 260 and 260 ′. The focus and screen voltages are varied by forward and backward transport of.

Accordingly, when manufacturing the focus pack installed to one side of the FBT case, the substrate can be securely protected inside the focus cover, eliminating the need for filling of the insulating resin, and configuring the slider for adjusting the focus and screen voltage by linear transfer. This makes the focus pack compact in size.

Description

FOCUS PACK OF FLY BACK TRANSFORMER}

The present invention relates to a focus pack of 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 and a monitor, in particular, a focus pack installed to one side of an FBT case. Focus and screen output terminal pieces are provided on both sides of the substrate of the main body of the main body, and a resistor pattern formed in parallel on the substrate and a slider connected to the output terminal pieces are transferred in a straight line to draw the output voltage. When manufacturing the focus pack, the substrate printed with the resistance pattern in parallel on the upper side is safely protected inside the main body of the focus pack, and then the focus upper case is installed on the upper side to fill and harden a separate insulating resin inside the focus pack. The sliders to adjust the focus and screen voltage Configured to compact the size of the focus pack, yet easy to focus and screen voltage, it will readily be about the focus pack of the FBT to be drawn out.

Conventionally known conventional FBT generates a high voltage through the high and low pressure bobbins installed therein, and supplies a high voltage to the CRT through an anode cable, wherein the focus unit installed on one side of the case of the FBT is inside the CRT. It is to change the focus and screen voltage.

In the structure of the conventional FBT focus pack related to this technique, as shown in FIG. 1, the focus and screen knobs 20a and 20b are connected to the inside of the focus pack 10 installed on one side of the FBT case. After the slider 30 is installed and the ceramic substrate 50 provided with the circuit pattern portion 40 to be connected to the contact point of the slider 30 is positioned on the rear surface of the focus pack 10, the focus and screen cables ( 60a) and 60b are made to be molded so as to be molded as an insulating resin.

In the conventional focus pack having the above configuration, as shown in FIG. 2, the contact point of the slider 30 integrally connected to the focus and the screen knobs 20a and 20b is ceramic in the rectangular focus pack 10. Located in the circuit pattern portion 40 on the substrate 50, the slider 30 is rotated integrally therewith by the operation of rotating the knob to draw the focus and screen voltage, wherein the focus pack 10 It is to be cured by injecting an insulating resin for insulation inside.

However, the focus pack 10 has a low workability and productivity due to filling and curing expensive insulating resins such as epoxy resins for insulation of the ceramic substrate 50 installed therein. There is a disadvantage that will rise.

In addition, cracking of the ceramic substrate 50 occurs due to shrinkage of the insulating resin due to filling and curing of the insulating resin as described above in the focus pack 10, and causes product defects due to overfilling of the insulating resin. There are many problems.

The present invention has been made in order to solve the various problems as described above, the object of the present invention, when manufacturing a focus pack installed on one side of the FBT case, the substrate printed with the resistance pattern parallel to the inside of the focus pack body portion It is safely protected on the upper side of the focus upper case is installed to maintain the insulation of the focus pack without the need to fill and harden a separate insulating resin inside the focus pack, the assembly of the focus pack is made easy It is to provide a focus pack of FBT that can further improve workability and productivity.

It is still another object of the present invention to provide a focus pack of FBT that can form a slider for adjusting the focus and screen voltage in a straight line to make the focus pack compact and to draw the focus and screen voltage easily and easily. To provide.

1 is a schematic perspective view of a focus pack of a general FBT.

Figure 2 is a front cross-sectional view of a conventional FBT focus pack.

3 is an exploded perspective view of the FBT focus pack according to the present invention.

Figure 4 is a side cross-sectional structural view of the main portion coupled state of the focus and slider for adjusting the screen voltage installed inside the focus pack of the present invention.

Explanation of symbols on the main parts of the drawings

110 ... substrate 120 ... substrate insertion groove

130 ... pack body

140,140 '... Focus and screen resistor pattern

150,150 '... pin insertion hole 160 ... ground terminal pin

170 ... Input terminal pin 180 ... Guide groove

190 ... Fixed

200,200 '... Focus and screen output terminals

210 ... cable connection 220 ... fixing hole

230 ... fixing protrusion 240 ... terminal fixture

250 ... Terminal 260,260 '... Slider

270 rack gear 280 knob

290 Pinion Gear 300 Upper Case

310 ... Connection guard 320 ... Spherical guide

As a technical configuration for achieving the above object, the present invention provides a focus pack main body portion provided with a substrate insertion groove therein is installed to one side of the FBT case;

A substrate on which both focus and screen resistor patterns are laid out in parallel and installed inside the pack body;

A focus and screen output terminal piece which is rolled out parallel to both sides of the substrate provided in the pack main body to draw focus and screen voltage;

A focus and screen resistor pattern formed on the substrate in parallel with each other, a slider connected to the focus and screen output terminal pieces disposed in parallel to each other and transferred in a straight line, and configured to draw an output voltage;

It is provided by the focus pack of the FBT characterized in that it comprises a top case which is installed on the upper side of the slider and installed to protect the substrate and the slider.

In addition, the present invention, the output terminal fasteners are provided on both sides of the substrate insertion groove of the pack body portion, the fixing piece of the focus and screen output terminal piece is tightly interpolated to be supported and fixed, the focus and the screen output terminal piece is composed of a straight line A fixed piece is bent in front of it, a cable connection piece is provided at a rear end thereof, and a slider for extracting the focus and screen output voltages is provided on a focus and screen resistor pattern arranged on both sides of the substrate, and on a focus and screen output terminal piece. By providing a focus pack of the FBT, each of which has a configuration in which the terminal pieces are interpolated and fixed so as to be connected.

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

Figure 3 is an exploded perspective view of the FBT focus pack according to the present invention, Figure 4 is a side cross-sectional structural view of the main portion coupled state of the slider installed in the focus pack of the present invention, the substrate 110 inside the substrate insertion groove ( 120 is formed in the substrate insertion groove 120 of the focus pack main body 130 installed on one side of the FBT case, and the focus and screen resistor patterns 140 and 140 'are printed parallel to each other on both sides of the upper portion. The substrate 110 is interpolated and fixed, and pin insertion holes 150 and 150 ′ are formed in front and rear of the substrate 110 so that the ground terminal pin 160 and the input terminal pin 170 are respectively It is inserted into the pin insertion holes 150 and 150 'to be coupled.

In the front of the substrate insertion groove 120 of the pack body portion 130, the substrate 110 is interpolated, the guide groove 180 to prevent the flow of the ground terminal pin 160 is coupled to the front of the substrate 110 ) Is long.

In addition, the fixing piece 190 is bent in front of both sides of the substrate insertion groove 120 in which the substrate 110 is interpolated, and a cable connecting piece 210 is installed at the rear end thereof to draw out the focus and the screen voltage, respectively. The focus and screen output terminal pieces 200 and 200 'are installed.

The focus and screen output terminal pieces 200 and 200 ′ have fixing holes 220 formed at one side thereof and fixed to one end of the fixing protrusion 230 protruding from both sides of the substrate insertion groove 120, respectively. And the fixing piece 190, which is the other end of the screen output terminal piece (200, 200 ') is intimately inserted into the output terminal fixture 240, which is provided on both sides in front of the substrate insertion groove 120 is fixed.

Subsequently, the terminals are connected to the focus and screen resistor patterns 140 and 140 'which are rolled on both sides of the substrate 110, and the focus and screen output terminal pieces 200 and 200' which are mounted on both sides thereof. A rack gear 270 is formed at one side of the focus and screen voltage drawing sliders 260 and 260 ′ in which the piece 250 is interpolated, and is installed to engage with the pinion gear 290 spoken with the knob 280. The upper case 300 is installed above the focus and screen voltage drawing sliders 260 and 260 ′ to protect the substrate 110 and the sliders 260 and 260 ′ in the pack body 130. do.

At this time, one end of the upper case 300 is connected to the connecting piece protector 310 is intermittently formed protruding the cable connecting piece 210 formed at one end of the focus and screen output terminal piece (200, 200 '), The spherical guide 320 to which the focus and the screen cable C are respectively guided in front of the connection piece protector 310 is formed.

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

3 and 4, when the substrate 110 is securely protected and fixed inside the pack main body 130 of the focus pack installed to one side of the FBT case, the pack main body 130 is The substrate 110 is tightly interpolated and fixed in the rectangular substrate insertion groove 120 formed therein.

In this case, the substrate 110 inserted into the substrate insertion groove 120 of the focus pack main body 130 may have the focus and screen resistor patterns 140 parallel to each other so as to draw the focus and screen voltages. In the state of printing, the pin insertion holes 150, 150 'installed in front and rear of the substrate 110, the ground terminal pin 160 protruding to the outside of the focus pack body portion 130, and the FBT Each of the input terminal pins 170 connected to the high-pressure bobbin is coupled to each other. In this case, the guide groove 180 is provided at the front of the substrate 110 so that the ground terminal pins 160 coupled thereto are drawn out to the outside. It is guided inside the guide groove 180 to prevent flow.

Subsequently, focus and screen output terminal pieces 200 and 200 'for drawing the focus and screen voltages are installed at both sides of the substrate insertion groove 120 into which the substrate 110 is interpolated, and fixed in front of the substrate insertion groove 120. While the piece 190 is closely inserted into and fixed to the terminal fixture 240 recessed on both sides of the substrate insertion groove 120, one side of the focus and screen output terminal pieces 200 and 200 ′ is a substrate insertion groove ( By being fixed to the fixing protrusions 230 protruding from both sides, the focus and screen output terminal pieces 200 and 200 ′ are firmly supported to both sides of the substrate 110.

In such a state, it is connected to the focus and screen resistor patterns 140 and 140 'on both sides of the substrate 110, and to the focus and screen output terminal pieces 200 and 200' installed on both sides thereof. Focus and screen voltage drawing sliders 260 and 260 'having a terminal piece 250 installed thereon are positioned above the substrate 110, so that the pinion gear 290 spoken with the knob 280 moves the slider ( 260 and 260 'are engaged with the rack gear 270 on one side, respectively.

Accordingly, the focus and screen voltage drawing sliders 260 and 260 'engaged with the rack gear 270 by the operation of rotating the pinion gear 290 integrally with the knob 280 and the terminal pieces respectively coupled thereto. 250 causes the focus and screen voltages to vary while moving forward and backward.

On the other hand, the upper case 300 is mounted on the upper side of the focus and screen voltage drawing sliders 260 and 260 'by ultrasonic fusion with the pack main body 130, so that the focus within the pack main body 130 and The substrate 110 and the sliders 260 and 260 ′ on which the screen resistor pattern is printed are protected. At this time, the connection piece protection part 310 protrudes from one end of the upper case 300 to focus and screen output terminal pieces. Cable connecting pieces 210, each of which is bent at one end of the 200 and 200 ', are interpolated, and a spherical guide 320 in which the focus and screen cables C are guided is provided in front of the connecting piece protection device 310. It is connected to the cable connection piece 210 to be able to draw the focus and the screen voltage of the focus pack smoothly.

According to the focus pack of the FBT according to the present invention as described above, when manufacturing the focus pack installed on one side of the FBT case, the substrate printed with the resistance pattern parallel to the upper side can be safely protected inside the focus pack body part, the upper side The focus upper case is installed so that the insulation of the focus pack can be effectively maintained without the need to fill and harden a separate insulating resin inside the focus pack, and the assembling of the focus pack can be easily performed to improve workability and productivity. In addition to improving the focus and the screen voltage, the slider to adjust the focus and the screen voltage is formed in a straight line, the size of the focus pack is compact, while the focus and screen voltage can be easily and easily withdraw the excellent effect .

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 (11)

A focus pack body 130 having a substrate insertion groove 120 formed therein and installed at one side of the FBT case; A substrate 110 installed inside the pack body 130 by focusing and screen resistor patterns 140 and 140 'being horizontally parallel to each other; A focus and screen output terminal piece (200, 200 ') which is rolled out in parallel to both sides of the substrate (110) installed in the pack body (130) to draw out focus and screen voltage; A straight line is connected to each of the focus and screen resistor patterns 140 and 140 'formed on the substrate 110 in parallel with each other, and the focus and screen output terminal pieces 200 and 200' installed in parallel thereto. Sliders 260 and 260 'which are transported to draw focus and screen output voltages; And a top case (300) mounted above the slider (260) (260 ') to be mounted to protect the substrate (110) and the slider (260) (260'). The fixed terminal 190 of the focus and screen output terminal pieces 200, 200 'is provided with output terminal fixtures 240 at both sides of the substrate insertion groove 120 of the pack body portion 130. The focus pack of the FBT characterized by the tight interpolation and support fixing. According to claim 1, wherein the substrate 110, the front and rear pin insertion holes 150, 150 'is inserted into the ground pins 170, 160, respectively, characterized in that the installation FBT focus pack. According to claim 1, wherein the focus and screen output terminal piece (200, 200 ') is formed in a straight line in front of the fixing piece 190 is formed, respectively, the rear end of the cable connection piece (210), respectively Focus pack of FBT characterized by being installed. The method of claim 1, wherein the sliders 260 and 260 ′ which draw out the focus and screen voltages include focus and screen resistor patterns 140 and 140 ′ which are horizontally arranged on both sides of the substrate 110. A focus pack of the FBT, characterized in that the terminal pieces 250 are interpolated and fixed so as to be connected to the output terminal pieces 200 and 200 ', respectively. 6. The rack gear 270 according to claim 1 or 5, wherein the sliders 260 and 260 'for drawing the focus and screen voltages are fitted with the pinion gears 290 spoken with the knobs 28. The focus pack of the FBT, characterized in that the terminal piece 250 is inserted into the rack gear 270 to be interpolated to be transported linearly. The method of claim 1, wherein the front of the substrate insertion groove 120 of the pack body portion 130, the substrate 110 is interpolated, the flow of the ground terminal pin 160 is coupled to the front of the substrate 110 Focus pack of the FBT, characterized in that the guide groove 180 to prevent the main body. According to claim 1, wherein the focus and the screen output terminal piece 200, the fixing hole 220 is formed on one side is fixed to one end of the fixing projection 230 protruding on both sides of the substrate insertion groove (120). Focus pack of FBT to assume. 3. The terminal piece 250 of claim 1, wherein the terminal piece 250 is inserted into the focus and screen voltage drawing sliders 260 and 260 ′. (140 ') and both ends of the focus and screen output terminal pieces (200, 200') are respectively connected so as to be linearly conveyed integrally with the sliders (260, 260 '). The method of claim 1, wherein one end of the upper case 300, the connecting piece protector 310 protrudes so as to intersect the cable connecting piece 210 formed at one end of the focus and screen output terminal pieces (200, 200 '). Focus pack of the FBT, characterized in that formed. The spherical guide (320) according to claim 10, wherein the splice protection device (310) into which the cable connection piece (210) is interpolated is provided in front of the spherical guide (320) in which the focus and screen cables (C) are guided to the cable connection piece (210). Focus pack of the FBT characterized in that the speech.