KR100286810B1 - Flyback Transformer Focus and Screen Separation Pattern Structure - Google Patents

Abstract

The present invention relates to a focus and screen separation pattern structure that enables easy and easy connection and connection of a volume board divided into two. In particular, the focus volume is divided into two and installed inside the focus unit 110 of the FBT. The connection terminal coupling groove 180 is formed at the center of the front surface of the volume case 160 in which the substrate 120 and the screen volume substrate 130 are interpolated. The volume connection terminal 190 has a coil spring shape. After the interpolation), both ends thereof are connected to the terminal portion 210 of the resistor pattern 200 printed on the focus and screen volume substrates 120 and 130.

Accordingly, it is possible to sufficiently secure the insulation according to the occurrence of the potential difference generated between the resistor pattern of the volume board, and to connect the terminal portion of the volume board, which is divided into two, easily and easily elastically through the connection terminal It can be done.

Description

Flyback Transformer Focus and Screen Separation Pattern Structure

The present invention provides 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, and is provided in a focus unit of the FBT to adjust a focus and screen voltage. Focus and screen separation pattern structure to increase the insulation of the two, the volume substrate is divided into two easily and easily connected to the connection, which is particularly divided into two focus and screen volume substrates are formed openings And a volume case having a substrate coupling groove for protruding the insulating film into which the opening of the volume board is inserted, a volume connection terminal formed with a coupling terminal coupling groove formed above the center of the volume case, and interposed therebetween, and above the volume case. It consists of cover part installed in When manufacturing the focus and screen volume, the volume board for adjusting the focus and screen voltage is separately manufactured and printed on the resistive pattern to increase the breakdown voltage, and the size of the volume board can be reduced while increasing the rated voltage of the FBT. Of course, the present invention relates to a focus and screen separation pattern structure of an FBT, which allows a volume board divided into two parts to be easily and easily connected and connected through a volume connection terminal.

Conventionally known 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 unit related to such a technique, as shown in FIG. 1, the rotating piece 40 which is struck with the focus volume knob 30 inside the main body 20 of the focus unit 10 is provided. A slider 50 having two contacts on the upper side thereof is installed, and a ceramic substrate 70 on which a resistor pattern 60 printed with a variable and center contact is printed so as to be connected to the contact of the slider 50. It is constructed so that it can be molded as an insulating resin.

In the conventional focus unit 10 having the above configuration, when the focus volume knob 30 protruding to the outside of the main body 20 is turned by hand to change the focus and screen voltage in the CRT, The slider 50 is rotated integrally with the rotating piece 40 to vary the voltage.

Meanwhile, FIG. 2 illustrates a focus and a screen pattern on a ceramic substrate 70 installed in a conventional focus unit 10, and one contact of the slider 50 is printed on the ceramic substrate 70. It is connected to the variable contact (60a) of the resistor pattern 60 to change the focus and screen voltage, the other contact of the slider 50 is connected to the center contact (60b) to draw the output value through the resistance .

However, the ceramic substrate 70 of the focus unit 10 as described above has a disadvantage in that the withstand voltage characteristic is remarkably degraded due to a potential difference generated between two circular resistor patterns 60 printed thereon.

In particular, when the use rated voltage of the FBT is large, the size of the ceramic substrate 70 should be relatively increased, and in this case, workability and productivity are deteriorated, and the unit cost is increased.

In addition, the ceramic substrate 70 on which the resistor pattern 60 is printed is assembled by the complicated structure of the focus unit by impregnating and curing an epoxy resin, which is an insulating resin, in the focus unit 10 in order to ensure insulation. There are many problems such as extremely low productivity.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and an object thereof is to separately manufacture a volume substrate for adjusting the focus and screen voltage when manufacturing a focus and screen volume installed in an FBT focus unit. In this way, by printing a resistive pattern to effectively ensure insulation, while increasing the withstand voltage and reducing the size of the volume board to increase the rated voltage of the FBT, as well as the terminal portion of the volume board divided into two It is to provide a focus and screen separation pattern structure of the FBT that can be connected easily and easily through the volume connection terminal.

1 is a front cross-sectional view of a focus unit installed on one side of a typical FBT case.

2 is a schematic structural diagram of a focus volume substrate installed inside a conventional focus unit;

Figure 3 is a schematic exploded perspective view of a volume case installed in the focus unit of the FBT and the focus volume substrate interpolated thereto according to the present invention.

4 is a schematic structural diagram of still another focus volume substrate of a main portion of a volume connection terminal for connecting and connecting both volume substrates of the present invention.

Explanation of symbols on the main parts of the drawings

110 ... Focus unit 120 ... Focus volume board

130 ... screen volume board 140 ... opening

150 ... isolate 160 ... volume case

170 ... substrate coupling groove 180 ... connection terminal coupling groove

190 ... Volume connection terminal 200 ... Resistor pattern

210 Terminals 220 Cover parts

230 ... coil spring 240 ... connection bar

As a technical configuration for achieving the above object, the present invention provides a volume case having a focus and screen volume substrate divided into two and formed with a substrate coupling groove for protruding the separator into which the opening of the volume substrate is inserted. And a volume connection terminal interposed therebetween with a connection terminal coupling groove formed at an upper side of the center of the volume case, and a cover part installed above the volume case, to provide a focus and screen separation pattern structure of the FBT. By

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

3 is a schematic exploded perspective view of a volume case installed on a focus unit of an FBT according to the present invention and a focus volume board interpolated thereto, and FIG. 4 is a schematic diagram illustrating a main portion of a connection terminal connecting and connecting both volume boards of the present invention. In addition, an opening 140 having one side opened on the focus volume substrate 120 and the screen volume substrate 130, which is divided into two parts and installed in the focus unit 110 of the FBT, is formed. The substrate coupling groove 170 into which the volume substrate is inserted is formed in the volume case 160 through which the isolation layer 150 protrudes so that the opening 140 of the substrate 120 or 130 is inserted into the opening 140. 160 is formed on the front center of the connection terminal coupling groove 180 is inserted into the volume connection terminal 190, and then both ends of the resist pattern 200 printed on the focus and screen volume substrates 120 and 130 To the terminal section 210 of Rock is, the volume is ever case 160, the upper cover 220 is chakseol.

The volume connection terminal 190 connected to the terminal portion 210 of the resistor pattern 200 printed on the focus and screen volume substrates 120 and 130 is connected to both sides of the spring 230 on the coil 240. It consists of a configuration that is coal.

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

4 to 5, in the case of installing the focus volume substrate 120 and the screen volume substrate 130, which is divided into two are installed in each of the focus unit 110 is installed to one side of the FBT case The opening 140 of the focus and screen volume substrates 120 and 130 may be inserted into the focus volume substrate 120 and the screen volume substrate 130 in a state in which an opening 140 having one side is opened. The substrate coupling groove 170 is formed in the volume case 160 in which the isolation layer 150 protrudes so that the isolation membrane 150 is formed therein, so that the focus volume substrate 120 is formed in the substrate coupling groove 170 of the volume case 160. And the screen volume substrate 130 is divided into two, respectively, to effectively insulate arc discharge due to the potential difference between the resistor patterns 200 printed on the respective volume substrates, thereby reducing the size of the focus volume substrate ( 120) and By using a screen board volume 130 is to be able to use the organic rated voltage of a higher FBT.

In this case, when the focus volume substrate 120 and the screen volume substrate 130, which are divided and inserted into the volume case 160, are connected to each other, as shown in FIG. 3, the focus volume substrate 120 And a coil spring 230 in the coupling terminal coupling groove 180 in a state in which the coupling terminal coupling groove 180 is arranged above the front center of the interposed volume case 160 of the screen volume substrate 130. The focus volume substrate 120 and the screen volume substrate 130 are connected to each other by elastically inserting the volume connection terminal 190.

Referring to the connection process of the volume connection terminal 190 as shown in Figure 4, the volume connection terminal 190 consisting of the coil spring 230 between the focus volume substrate 120 and the screen volume substrate 130 is After insertion, the volume is connected to the terminal portion 210 which is the focus output terminal of the resistor pattern 200 of the focus volume substrate 120 and the input terminal terminal 210 of the resistor pattern 200 printed on the screen volume substrate 130. Since the connecting bars 240 at both ends of the coil spring 240 of the terminal 190 are elastically connected to the surface of the terminal 210, the focus volume substrate 120 and the screen volume substrate 130 can be easily and easily. It can be connected.

Meanwhile, as described above, the focus volume substrate 120 and the screen volume substrate 130 are interpolated inside the volume case 160, and the volume case 160 is connected to each other using the volume connection terminal 190. ), The cover unit 220 on which the slider and the operating knob (not shown) are installed is installed on the upper side thereof, so that the coupling of the focus unit 110 is completed to use the focus volume substrate 120 and the screen volume substrate 130. The separate focus and screen voltages can be varied.

As described above, according to the focus and screen separation pattern structure of the FBT according to the present invention, when manufacturing the focus and screen volume installed in the FBT focus unit, the volume substrate for adjusting the focus and screen voltage is separately manufactured, and the resist pattern Printing effectively secures the insulation, and accordingly increases the withstand voltage of the focus volume, and separates the two volume boards to reduce the size of the board while increasing the rated voltage of the FBT, as well as the two There is an excellent effect that can be connected easily and easily elastically connected to the terminal portion of the volume substrate to be divided by the volume connection terminal.

Claims (2)

In the focus and screen pattern structure installed in the focus unit of the FBT, Focus and screen volume substrate 120, 130 is divided into two and the opening 140 is formed, A volume case 160 having a substrate coupling groove 170 in which the isolation layer 150 into which the opening 140 of the focus and screen volume substrates 120 and 130 is inserted is protruded and formed; A volume connection terminal 190 having a coil spring 230 shape in which a connection terminal coupling groove 180 is formed and interpolated above the front center of the volume case 160; The focus and screen separation pattern structure of the FBT, characterized in that it comprises a cover portion 220 is installed to the upper side of the volume case 160. The volume connection terminal 190 of claim 1, wherein the volume connection terminal 190 is connected to the terminal portion 210 of the resistor pattern 200 printed on the focus and screen volume substrates 120 and 130. The connection bar 240 is stacked on both sides of the terminal unit 210, which is the focus output terminal of the resistor pattern 200 printed on the focus volume substrate 120, and the screen of the resistor pattern 200 printed on the screen volume substrate 130. Focus and screen separation pattern structure of the FBT, characterized in that to be connected to the upper side of the terminal portion 210, which is an input end elastically.