KR100281755B1 - Flyback transformer focus volume board connector - Google Patents

Abstract

The present invention relates to a focus volume board connecting device that enables easy and easy connection and connection of a volume board divided into two. In particular, the focus volume board is divided into two and installed inside the focus unit 110 of the FBT. A connection terminal coupling groove 180 is formed at the center of the front surface of the volume case 160 in which the substrate coupling groove 170 in which the 120 and the screen volume substrate 130 are inserted is formed, and thus the volume connection terminal 190 is interpolated. 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 volume board connector

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. The present invention relates to a focus volume board connecting device which increases the insulation of the two and divides the volume board which is divided into two parts easily and easily. 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 connection terminal coupling groove formed at the center of the front of the volume case and interposed therebetween, and installed above the volume case. Can be installed in the FBT focus unit When manufacturing the curse and the screen volume, separate the volume board for adjusting the focus and the screen voltage to print a resistive pattern to increase the breakdown voltage, and to reduce the size of the volume board while increasing the rated voltage of the FBT. Of course, the present invention relates to an FBT focus volume board connecting device that can easily and easily connect and connect a volume board divided into two.

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 is a view illustrating a ceramic substrate 70 installed in a conventional focus unit 10, and a contact of one side of the slider 50 is a resistor pattern 60 printed on the ceramic substrate 70. It is connected to the variable contact (60a) of the to change the focus and screen voltage, the other contact of the slider 50 is connected to the center contact (60b) is to pull 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 An object of the present invention is to provide an FBT focus volume board connecting device that can be easily and easily connected through a connecting 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.

Fig. 4 is a schematic structural diagram of still another focus volume substrate of the main parts of a connecting terminal for connecting and connecting both volume boards 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

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 connecting terminal formed at the center of the front of the volume case and including a volume connecting terminal inserted into the volume case, and a cover part installed on the upper side of the volume case. All.

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 in the center of the front connector coupling groove 180 is inserted into the volume connection terminal 190, and both ends of the resistor pattern 200 is printed on the focus and screen volume substrates 120, 130 To be connected to the terminal 210 It said, the volumes, the upper case 160 comprises a configuration in which the cover unit 220 chakseol.

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

3 and 4, in the case of installing the focus volume substrate 120 and the screen volume substrate 130, which is divided into two each installed in the interior 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 screen Using the substrate 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 volume connection terminal configured to form a line spring inside the connection terminal coupling groove 180 in a state in which the connection terminal coupling groove 180 is formed at 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 the operation of closely inserting the 190.

Referring to the connection process of the volume connection terminal 190, as shown in Figure 4, after the volume connection terminal 190 is inserted between the focus volume substrate 120 and the screen volume substrate 130, the focus volume substrate Both ends of the V-shaped volume connection terminal 190 are connected to the terminal portion 210 of the end of the resistor pattern 200 of the 120 and the input terminal 210 of the resistor pattern 200 printed on the screen volume substrate 130. By being elastically connected, the focus volume substrate 120 and the screen volume substrate 130 can be connected easily and easily.

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 focus and screen voltage can be changed.

As described above, according to the FBT focus volume board connection device, when manufacturing the focus and screen volume installed in the FBT focus unit, the volume board for adjusting the focus and screen voltage is separately manufactured and the resistor patterns are respectively formed. Printing effectively secures insulation, and accordingly increases the withstand voltage of the focus volume, and separates the volume board into two to reduce the size of the board while increasing the rated voltage of the FBT, of course, divided into two There is an excellent effect that can be connected easily and easily elastically connected to the terminal portion of the volume plate is configured by the connecting terminal.

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 (4)

In the focus volume installed in the FBT focus unit, 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 connection terminal coupling groove 180 is formed at the front center of the volume case 160 and interposed therein with the volume connection terminal 190 interposed therebetween; Focus volume board connection device of the FBT, characterized in that it comprises a cover portion 220 which is installed on the upper side of the volume case 160 The terminal unit of claim 1, wherein the volume connection terminal 190 interpolated in the connection terminal coupling groove 180 of the volume case 160 is a focus output terminal of the resistor pattern 200 printed on the focus volume substrate 120. (210) and the FBT focus volume board connection device, characterized in that to be connected to each of the terminal portion 210, which is the screen input terminal of the resistor pattern 200 printed on the screen volume substrate (130). According to claim 1 or 2, wherein the volume connection terminal 190 is inserted into the coupling terminal coupling groove 180 of the volume case 160, the focus volume board connection device of the FBT, characterized in that consisting of a line spring . The focus output terminal of the resistor pattern 200 of the focus volume substrate 120 according to claim 1 or 2, wherein the volume connection terminal 190 interpolated in the connection terminal coupling groove 180 of the volume case 160 is included. Both ends of the terminal 210 and the input terminal 210 of the resistor pattern 200 printed on the screen volume substrate 130 are elastically connected to both ends of the volume connecting terminal 190 having a cross-sectional shape. FBT focus volume board connector.