KR100311817B1 - Coupling device for cable and focus unit in fly back transformer - Google Patents

Abstract

The present invention relates to a cable connecting device that can be easily and easily connected to the cable of the focus unit of the FBT is installed to one side of the FBT to adjust the focus and screen voltage of the CRT, in particular, the volume substrate on which the resistor pattern 130 is formed A support shaft 160 in which a connection pin 170 is inserted in the center of the opening 140 of 120 is inserted, and one end of the connection pin 170 is connected to the cable 210 to operate the focus unit 110. Slider spring 230 is installed in the knob 220, one end of the slider spring 230 is connected to the connecting pin 170 of the support shaft 160, the other end of the slider spring 230 is a volume substrate ( It is connected to the resistor pattern 130 of 120 to adjust the focus and the screen voltage.

Description

FOCUSING DEVICE FOR CABLE AND FOCUS UNIT IN FLY BACK TRANSFORMER}

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 cathode ray tube of a TV and a monitor, which is installed as one side of the FBT to a focus unit for adjusting the focus and screen voltage of the cathode ray tube In particular, the resistance pattern for adjusting the focus and screen voltage is formed above the volume substrate inherent in the focus unit, and an arc opening is formed in the center of the arc resistor pattern, and a support shaft is inserted therein, and is connected to the inside of the support shaft. The pin is interpolated, the cable is interpolated in front of the volume case into which the volume board is interpolated, and is connected to the lower end of the connecting pin. The slider spring is built into the operating knob installed on the cover of the focus unit, and one end of the volume board is resistor By focusing on the pattern, the focus unit of the focus unit It is easy and easy to connect and connect the slider spring for adjusting the volume, and the focus and screen voltage drawing cables can be connected to the volume of the focus unit simultaneously electrically and mechanically without the need for soldering. The focus unit and cable connection of the FBT.

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 unit associated with such a technique, as shown in FIG. 1, the rotating piece 54 which is spoken with the focus and screen adjustment knobs 53 inside the main body portion 52 of the focus unit 51. ), A slider 55 having two contacts on the upper side thereof is installed, and a variable contact pattern 57a and a center contact pattern 57b are printed so as to be connected to the contacts 56 and 56 'of the slider. A substrate 58 provided with a circuit pattern portion 57 is installed, and an output pin 59 coupled thereto is installed above the substrate 58 to mold the inside of the body portion 52 as an insulating resin 60. It consists of a configuration.

In the conventional focus unit 51 having the above-described configuration, when the focus and screen adjustment knobs 53 protruding outward from the main body portion 52 to vary the focus and screen voltage in the CRT, The slider 55 is rotated integrally with the pivoting piece 54 to vary the voltage. In this case, the slider 55 has two contacts 56, 56 'formed with one contact ( 56 is connected to the variable contact pattern 57a of the circuit pattern portion 57 printed on the substrate 58 as shown in FIG. 2 to vary the focus and screen voltages, and the other contact 56 'is the center contact. It is connected to the pattern 57b and draws out an output value via the resistance pattern 57c.

However, the focus unit 51 as described above has the slider 55 having two contacts 56, 56 'at the end of the adjustment knob 53 in order to vary the focus and screen voltages. Distance between the variable contact pattern 57a and the center contact pattern 57b by printing the variable contact pattern 57a and the center contact pattern 57b on the circuit pattern portion 57 of the substrate 58 so as to connect the two contacts and the connection. In addition to the weakening of the withstand voltage, there is a disadvantage that causes a ground fault of the contact portion.

In addition, when drawing the focus and screen voltage inside the focus unit 51, as shown in FIG. 2, a hole is formed in one end of each center contact pattern 57b of the substrate 58, and then a terminal 61 is installed. In addition, by connecting the cable 62 for focus and screen voltage drawing to the terminal by soldering again, the connection work of the cable becomes difficult, and the substrate is formed by the heat generated during the soldering work for the connection of the cable 62. There are many problems such as cracking at 58.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and its object is to facilitate and facilitate connection and connection of a slider spring for adjusting focus and screen volume, and to draw out the focus and screen voltage. The cable can be connected to the volume of the focus unit electrically and mechanically without the need for soldering. In addition, the connecting pin connected to the slider spring is connected to the cable for focus and screen voltage extraction. It is to provide a FBT focus unit and cable connection device that can be easily connected to improve the assembly of the focus unit.

1 is a front sectional structural view showing an internal structure of a focus unit for explaining a focus unit volume slider of a general FBT.

2 is a view illustrating a connection state of a conventional focus unit focus and cable for drawing out pressure.

3 is a schematic exploded perspective view of a focus unit for explaining a focus volume slider of an FBT according to the present invention;

Figure 4 is a structural diagram showing the connection of the resistor pattern and the connection pins provided on the volume board of the present invention focus unit.

Figure 5 is a structural diagram showing the connection of the focus and screen voltage extraction cable and the connection pin of the present invention.

Explanation of symbols on the main parts of the drawings

110.Focus unit 120.Volume substrate

130 ... resistor pattern 140 ... opening

150 ... pin coupling hole 160 ... support shaft

170 ... connection pin 180 ... substrate insertion groove

190.Volume case 200.Cable coupling hole

210 ... cable 220 ... operation knob

230 ... slider spring 230a ... variable contact

230b ... center contact 240 ... contact

As a technical configuration for achieving the above object, the present invention is a volume substrate having a focus and screen voltage adjustment resistor pattern is formed on the upper side, an arc-shaped opening is formed in the center of the arc-shaped resistor pattern is built in the focus unit;

A volume case in which a substrate insertion groove is formed to interpolate the volume substrate, a support shaft is placed in the center of the arc-shaped opening of the volume substrate, and a connection pin is inserted in the support shaft;

A cable for focusing and screen voltage extracting, each of which is inserted into a cable coupling hole formed at both sides of a volume case front side in which the volume board is inserted, and one end of which is connected to a lower end of a connection pin; And

The focus of the FBT, characterized in that the variable contact is installed inside the operating knob installed in the cover unit of the focus unit is in contact with the resistor pattern, the other center contact comprises a slider spring connected to the upper end of the connecting pin of the support shaft By providing the unit and cable connection.

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

FIG. 3 is a schematic exploded perspective view of a focus unit for explaining a focus volume slider of an FBT according to the present invention, and FIG. 4 is a connection state of a resistor pattern and a connection pin installed on a volume board of the focus unit of the present invention. As a main structure diagram, a resistor pattern 130 for varying focus and screen voltages is formed above the volume substrate 120 embedded in the focus unit 110, and an arc shape (저항), which is the focus and screen resistor pattern 130, is formed. An arc-shaped opening 140 is formed in the center of the pattern.

In addition, the volume case 190 in which the substrate insertion groove 180 is formed so that the volume substrate 120 is interpolated may allow the support shaft 160 to be placed in the center of the arc-shaped opening 140 of the volume substrate 120. A pin coupling hole 150 is formed in the support shaft 160 to allow the connection pin 170 to be inserted thereto.

Subsequently, cable coupling holes 200 are respectively installed at both sides of the front surface of the volume case 190 into which the volume substrate 120 is interpolated, and a cable for focusing and screen voltage drawing is formed inside the cable coupling hole 200. 210 and 210 ′ are interpolated, respectively, so that one end of the cable 210 or 210 ′ is connected to the lower end of the connection pin 170.

In addition, a slider spring 230 is installed inside the operation knob 220 mounted on the cover unit of the focus unit 110, and the variable contact pattern 230a of one side of the slider spring 230 is a resistor pattern 130. ) And the other center contact pattern 230b is installed to be connected to the upper end of the connection pin 170 of the support shaft 160.

In addition, the upper end of the connecting pin 170 is formed with a flat contact portion 240 having a diameter larger than the pin body portion of the connecting pin 170, the slider spring 230 which is installed in the operating knob 220 One end is made of a configuration that is in contact elastically.

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

As shown in FIGS. 3 to 5, the volume substrate 120 installed inside the focus unit 110 of the FBT has a resistor pattern 130 printed thereon to adjust the focus and screen voltages. The resistive pattern 130 and the slider spring 230 are connected while the volume substrate 120 is inserted into and fixed in the substrate insertion groove 180 of the volume case 190. Focus and screen voltage adjustments can be performed.

At this time, the volume substrate 120, the pin coupling hole 150 is installed in the center of the arc-shaped opening 140 formed in the center of the arc-shaped pattern that is the resistor pattern 130 printed on the upper side After the support shaft 160 is placed on the upper side of the volume substrate 120, the connecting pin 170 is tightly interpolated inside the pin coupling hole 150.

In addition, the volume case 190 has a cable coupling hole 200 is installed on both sides of the front, so that the focus and screen voltage drawing cable 210, 210 'is interpolated, respectively, the support shaft 160 The connecting pin 170 interpolated therein is connected to the cable 210.

The connection structure of the cable 210 is a state in which the cable 210, 210 'consisting of a plurality of copper wires is inserted into the cable coupling hole 200 of the volume case 190 as shown in FIG. In, when the connecting pin 170 is inserted into the pin coupling hole 150 of the support shaft 160 vertically penetrating the cable coupling hole 200, the end of the connection pin 170 is pointed bottom It penetrates the sheath of the cables 210 and 210 'and is inserted between several strands of copper wires so as to be connected and connected to the focus and screen cables 210 and 210'.

Subsequently, the focus and screen voltage adjustment process through the slider spring 230 will be described. As shown in FIG. 4, the slider spring 230 is located inside the operation knob 220 mounted on the cover of the focus unit 110. ), The variable contact point 230a of the slider spring 230 contacts the resistor pattern 130 printed on the upper side of the volume substrate 120 to change the focus and the screen resistance.

In addition, the other center contact point 230b of the slider 230 is inserted into the pin coupling hole 150 of the support shaft 160 so that the lower end of the connecting pin 170 is connected to the cable 210, 210 '. By being in contact with the upper contact portion 240, it is possible to easily withdraw the focus and screen signal that is variable from the variable contact (230a) through the connecting pin 170 to the cable coupling hole (200).

On the other hand, at the upper end of the connecting pin 170, a flat contact portion 240 having a diameter larger than the pin body portion of the connecting pin 170 is formed, the slider spring 230 which is installed in the operating knob 220 One end can be easily elastically contacted.

According to the focus unit and cable connection device of the FBT according to the present invention as described above, the connection and connection of the slider spring for adjusting the focus and the screen volume is made easy and easy, and the focus and screen voltage extraction cable for soldering Without the need for this, the volume of the focus unit can be connected electrically and mechanically at the same time, and the connecting pins connected to the slider springs can be simply connected to the focus and screen voltage drawing cables to improve the assembly of the focus unit. It has an 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 (8)

In the focus unit of the FBT, A volume substrate 120 formed at an upper side thereof with a resistor pattern 130 for adjusting focus and screen voltage, and having an opening 140 formed at a center of the resistor pattern 130, and embedded in a focus unit 110; A substrate insertion groove 180 is formed so that the volume substrate 120 is interposed therebetween, and a support shaft 160 is placed in the center of the opening 140 of the volume substrate 120, and the inside of the support shaft 160 is connected. A volume case 190 into which the pin 170 is interpolated; Focus and screen voltage extraction cable that is interposed inside the cable coupling hole 200 formed on both sides of the volume case 190 in which the volume substrate 120 is interpolated, one end of which is connected to the lower end of the connection pin 170. (210) 210 '; And It is installed inside the operation knob 220 mounted on the cover unit of the focus unit 110, one side of the variable contact 230a is in contact with the resistor pattern 130, the other center contact (230b) of the connection pin 170 Focus unit and cable connection device of the FBT, characterized in that it comprises a slider spring 230 connected to the contact portion 240. The cable 210 (210 ') of the cable 210, 210' is inserted into the cable coupling hole 200 of the volume case 190 is inserted into a plurality of copper wires. Focus unit and cable connection device of the FBT. According to claim 2, The cable coupling hole 200, the connecting pin 170 is inserted into the pin coupling hole 150 of the support shaft 160 vertically penetrated therein, the connection pin 170 of the Focus unit of the FBT and the cable connection device, characterized in that the lower end is inserted between the copper wire strand of the cable 210, 210 'connection. According to claim 1, characterized in that the contact portion 240 is larger in diameter than the pin body portion of the connection pin is formed on the upper end of the connection pin inserted in the support shaft placed on the volume substrate 120 FBT focus units and cable connections. The focus unit and the cable connection device of the FBT according to claim 4, wherein the contact portion 240 of the connection pin 170 is formed in a flat plate shape. The method of claim 4, wherein the contact portion 240 of the connecting pin 170, one side of the central contact 230b of the slider spring 230 which is installed on the operation knob 220 is elastically contacted and connected and connected FBT focus units and cable connections. The FBT of claim 1, wherein the variable contact 230a of the slider spring 230 is in contact with the resistor pattern 130 printed on the volume substrate 120 to change the focus and the screen resistance. Focus units and cable connections. The focus unit and the cable of the FBT of claim 1, wherein the opening 140 formed at the center of the resistor pattern 130 of the volume substrate 120 in the focus unit 110 is formed of an arc-shaped opening. Connector.