KR980011594A - Self-fusing coil forming apparatus for deflection yoke and method of controlling energization thereof - Google Patents

Abstract

The present invention relates to an apparatus for forming a magnetic fused-coil of a deflection yoke and a method for controlling the energization of the deflection yoke, in which the load condition of the load coil is measured in advance to improve the fusion efficiency of the magnetic fused- A separator for removing the bond layer and the enamel layer so as to break the insulation at both ends of the coil connected to the two electrodes; And a resistance measuring unit connected to the two electrodes to determine a resistance value of the self-welding coil. According to the present invention, since the resistance value of the magnetic fused-in coil is measured and energized according to the result of the measurement, there is an effect that the destruction of the self-fused coil due to the overcurrent and the defective formation due to the unintentional firing of the self-fused coil can be prevented.

Description

Self-fusing coil forming apparatus for deflection yoke and method of controlling energization thereof

Since this is a trivial issue, I did not include the contents of the text.

FIG. 1 is a cross-sectional view of a self-welding coil generally wound around a deflection yoke; FIG.

Fig. 2 is a block diagram of a molding apparatus according to the prior art; Fig.

Fig. 3 is a flow chart showing energization control operation according to the prior art; Fig.

FIG. 4 is a block diagram of a molding apparatus according to the present invention; FIG.

FIG. 5 is a flow chart showing an energization control operation according to the present invention; FIG.

DESCRIPTION OF THE REFERENCE NUMERALS

10: magnetic fused coil 21, 22: electrode

30: Peeler 40: Pailer

50: resistance measuring unit 51: voltmeter

CR1: Measuring relay R: Reference resistance

V: drive voltage

The present invention relates to an apparatus for forming a magnetic firing coil of a deflection yoke and a method for controlling the energization of the deflection yoke. More particularly, the present invention relates to a magnetic firing coil forming apparatus for a deflection yoke, And a control method thereof.

Generally, as shown in FIG. 1, a magnetic fused coil wound around a deflection yoke is centered in a copper line, and has a structure in which an enamel insulating layer is wrapped and a bond layer is coated on the outer side thereof.

When forming a magnetic flux-cored coil having the above-described structure, firstly, when current is passed through the center line of the coil, the outermost bond layer becomes molten by the self-heating of the coil, Bonding coils are bonded to each other.

The conventional controller used in the present invention is a device for supplying a current to a copper wire which is the center of the bond layer for melting the bond layer of the magnetic fusion coil.

Hereinafter, a conventional molding apparatus will be described in detail with reference to the accompanying drawings. FIG. 2 is a block diagram showing a configuration of a molding apparatus according to the prior art.

The prior art magnetic fuser coil forming apparatus includes two electrodes 121 and 122 to which both ends of a magnetic fuser coil 110 wound on a deflection yoke are connected and a pair of electrodes 121 and 122 connected to the two electrodes 121 and 122, The molding characteristics are influenced by the degree of peeling at both ends of the magnetic fusing coil 110 by the operation of the peeling machine 130 for removing the bond layer and the enamel insulating layer to break the insulation at both ends of the magnetic fusing coil 110 do. For example, when a plurality of magnetic fuser coils 110 are simultaneously wound on the deflection yoke and a self-fusing coil 110, which is not completely removed during operation of the fuser 130, is generated, In operation, the current does not flow in the self-fusing coil 110, which is not subjected to the above-mentioned tucking, and there is no heat generation, resulting in a problem of defective molding.

In the case where the insulating layer is scratched when the magnetic fuser coil 110 is wound on the deflection yoke to reduce the overall resistance of the magnetic fuser coil 110, There is a problem that heat rushing phenomenon is caused in the heat sink.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a magnetic flux- And to provide a magnetic fused-coil forming apparatus for a deflection yoke which is capable of preventing a defective forming due to an unillustrated coil.

Another object of the present invention is to provide an energization control method for accurately measuring whether or not energization is performed by measuring a resistance applied to a self-welding coil in a self-sealing coil forming apparatus for a deflection yoke as described above.

In order to accomplish the above object, the present invention provides a deflection yoke magnetic firing coil forming apparatus comprising two electrodes fixedly connected at both ends of respective magnetic fusing coils wound on a deflection yoke, A separator for removing the bond layer and the enamel layer so as to break the insulation at both ends of the coil connected to the electrodes, and a power supply for allowing current to flow through the respective magnetic fused coils, And a resistance measuring unit for measuring the resistance value of the self-welding coil by being connected.

The resistance measuring unit may include a voltmeter connected to the two electrodes through two input terminals through a measurement relay, a reference resistor forming a closed circuit with the magnetic fused coil according to whether the measuring relay is on, And a driving power source.

The voltmeter detects a voltage applied to the coil, compares the voltage with a voltage applied to the reference resistor, determines the resistance value, compares the voltage with a stored reference voltage value, and outputs the result of the comparison.

As described above, the present invention improves the molding effect by holding the molding defects due to the overcurrent flow or the overflow.

According to still another aspect of the present invention, there is provided a method for controlling the energization of a magnetic fusing coil forming apparatus for a deflection yoke, comprising: a first deflection yoke having a deflection yoke wound with a first fusing coil, step; A second step of measuring a resistance value across the magnetic fused-coil and measuring a voltage value thereafter; And a third voltage comparing unit for comparing the measured voltage of the second step with a reference voltage of a predetermined range to output an error if the result is low and returning to the first step if the result is high, step ; And a fourth step of performing energization when the result of the third step is that the measured voltage falls within a predetermined range of the reference voltage.

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

As shown in FIG. 4, the apparatus for forming a magnetic fused-coil of a deflection yoke according to the present invention includes two electrodes 21 and 22 fixedly connected at both ends of each magnetic fused-coil 10 wound on a deflection yoke A separator 30 for removing the bond layer and the enamel insulating layer so as to break the insulation at both ends of the magnetic fused coil 10 connected to the two electrodes 21 and 22, And a resistance measuring unit 50 connected at both ends to the two electrodes 21 and 22 to determine the resistance value of the self-welding coil 10, do.

The resistance measuring unit 50 includes an impedance meter 51 connected to the two electrodes 21 and 22 through two measurement relays CR1 and CR2, And a reference resistor R and a driving power source V which are connected in series to each other to form a closed circuit together with the magnetic fused coil 10 according to whether or not the magnetic flux-

The operation and effect of the present invention configured as described above will be described in detail with reference to a flowchart shown in FIG.

First, when a plurality of magnetic fusion coils 10 are simultaneously wound on a deflection yoke and a certain amount of winding is completed, both ends of each of the plurality of magnetic fusion coils 10 are fixedly connected to the two electrodes 21 and 22 . At this time, the removing unit 30 operates to remove the bond layer and the enamel insulating layer by performing the removal of the end of the magnetic fused-on coil 10, thereby breaking the insulation and electrically connecting the two electrodes 21 and 22 .

Thereafter, when the measuring relay CR1 is turned on, the resistance value across both ends of the self-welding coil 10 is measured by the driving power supply V. At this time, since the magnetic fused coil 10 acts as a resistance against the driving power source V, the driving power source V is divided by the reference resistance R and the magnetic fused coil 10. As a result, the resistance value applied to the magnetic fused-coil 10 is measured by the measured voltage.

Thereafter, the measured voltage is compared with a reference voltage of a predetermined range. If the result is low, it means that the resistance value is high.

At this time, if the comparison result indicates that the measured voltage falls within the predetermined range, the power line is energized so that the copper wire that forms the center of the magnetic fuser coil 10 generates heat to melt the bond layer, And the molding is completed.

As described above, according to the present invention, the apparatus for forming a magnetic fused-coil of a deflection yoke and the method of controlling the energization of the deflection yoke measure the resistance value of the self-fused coil, It is possible to prevent the molding defects due to the unintentional disconnection.

Claims (3)

A deflector for removing the bond layer and the enamel layer so as to break the insulation at both ends of the coil connected to the two electrodes and two electrodes fixedly connected at both ends of the respective magnetic fused coils wound on the deflection yoke, And a resistance measuring unit including a power supply for allowing a current to flow through the self-welding coil, the resistance measuring unit being connected at both ends to the two electrodes to determine a resistance value of the self-welding coil. Fusing coil forming device. [2] The apparatus according to claim 1, wherein the resistance measuring unit comprises: a pressure gauge connected to the two electrodes via two input terminals through a measurement relay, and a closed circuit with the magnetic fusing coil according to whether the measurement relay is on, And a reference resistor and a drive power source connected in series. A first step of performing both ends dissociation of each of the plurality of magnetic fusing coils when the winding of the magnetic fusing coil is completed in the deflection yoke; Measuring a resistance value at both ends of the magnetic fused-coil and measuring a voltage value according to the measured resistance value; And a third voltage comparing unit for comparing the measured voltage of the second step with a reference voltage of a predetermined range to output an error if the result is low and returning to the first step if the result is high, step; And a fourth step of performing energization when the result of the third step is a reference voltage of a predetermined range. ※ Note: It is disclosed by the contents of the first application.