KR200231568Y1 - Direct Current Reactor - Google Patents

Abstract

The present invention relates to a direct current reactor mounted on an electric welding machine, etc. to correct the pulsated direct current to the waveform of the direct current, the core is made of a plurality of silicon steel sheets are laminated, and the insulating paper is attached to the bottom wound around the iron core The conductive metal plate and the surface is coated with an insulating coating material, characterized in that consisting of a main winding strip wound around the outer side of the conductive metal plate. At this time, it is preferable that the main winding strip is wound so that the side surface corresponding to the thickness of the main winding strip is in contact with the conductor metal plate. In another embodiment, the winding wound strip may be wound so that the surface corresponding to the width of the winding winding strip is in contact with the conductive metal plate.

Description

Direct Current Reactor

The present invention relates to a direct current reactor for limiting the pulse current to obtain a direct current, more specifically, by winding a conductive metal plate with an insulating paper between the iron core and the main winding band, to obtain a direct current close to the direct current by correcting the pulse wave waveform It relates to a direct current reactor that can be.

In general, a reactor is a type having a structure of a transformer and without a winding of a secondary side, and for the purpose of protecting an entire facility by absorbing an excessive voltage increase, that is, a surge voltage. It is installed in electrical equipment.

In addition, the reactor may be used inside the welding machine to obtain a waveform close to the direct current by correcting a direct current with a ripple of the current (DC) having a high AC component.

Among the reactors described above, a direct current reactor (DC reactor), which is installed in a welding facility or a welding machine, is a direct current reactor (DC reactor). The direct current reactor is a structure formed by winding a winding on a silicon steel sheet. To correct the waveform to a more desirable waveform, abnormal currents such as pulses are cut off.

Such a structure of a conventional DC reactor will be described with reference to the accompanying drawings.

1 is a perspective view of a conventional direct current reactor.

As shown in Figure 1, the direct current reactor has a rectangular parallelepiped iron core 10 is located on the center, the iron core 10 is composed of a plurality of silicon steel plate 11 having the same area is laminated, such iron core (10) At the center of both ends is fixed to the L-shaped fixing member 40 to be fixed in the interior of the electric equipment, such as by welding.

The outer side of the silicon steel sheet 11 is wound so that a plurality of layers of insulating paper 21 overlap each other.

In addition, the outer side of the insulating paper 21 is wound around the main winding strip 30 to which a direct current is applied, wherein the main winding strip 30 has a side surface corresponding to the thickness of the main winding strip 30 is the insulating paper 21 ) Is wound on the surface thereof, and an insulating coating material 31 is coated on the surface of the main winding strip 30.

Here, when a current is applied to the main winding strip 30, a magnetic field is formed in the iron core 10 according to the electromagnetic induction principle, and the waveform of the direct current applied to the main winding belt 30 is corrected.

The conventional direct current reactor formed in this form prevents the flow of current when the current is applied, and the so-called 'Lens's law' induction principle is applied to smooth the flow of current when the amount of applied current is reduced. It is done.

Conventionally, the DC reactor to which the above principle is applied is applied to a smoothing circuit for rectifying AC to DC, thereby correcting a waveform of DC having a rich AC component.

On the other hand, since the conventional DC reactor having such a structure is a simple structure in which the main winding strip 30 is wound around the iron core 10 with the insulating paper 21 interposed therebetween, thereby correcting the DC flowing through the DC reactor. Despite this, there is a problem that the current flow is short-circuited at regular intervals.

In addition, in the conventional DC reactor, since the main winding strip 30 is wound horizontally on the insulating paper 21, there is a problem in that it does not effectively dissipate heat generated by current flow.

Therefore, the present invention was derived in view of the above problems, and the first object of the present invention is not only to generate a DC waveform close to the direct current by blocking a short circuit of current flow, but also to dissipate heat when applying current. It is to provide a DC reactor that can cope.

A second object of the present invention is to provide a direct current reactor by winding a conductive metal plate including insulating paper between an iron core and a main winding strip.

The object of the present invention is iron core made of a plurality of silicon steel laminated;

A conductive metal plate attached to the bottom of the conductive paper and wound around the iron core; And

The insulating coating is coated on the surface is achieved by a direct current reactor, characterized in that consisting of a main winding band wound on the outside of the conductor metal plate.

Here, the main winding strip is preferably wound so that the side surface corresponding to the thickness of the main winding strip in contact with the conductor metal plate.

In addition, the winding strip is preferably wound so that the surface corresponding to the width of the winding strip in contact with the conductor metal plate.

Other objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying materials.

1 is a perspective view of a conventional DC reactor,

2 is a perspective view of a direct current reactor according to the present invention,

3 is an exploded perspective view of a direct current reactor according to the present invention;

4 is a state diagram used in the DC reactor according to the present invention,

5 is a perspective view of a direct current reactor according to another embodiment of the present invention.

<Description of the code | symbol about the principal part of drawing>

11: silicon steel 10: iron core

20: conductive metal plate 21: insulating paper

30: Sovereign belt 31: Insulation coating material

40: fixing member 50: electric welding machine

51: inverter 52: transformer

53: rectifier 54: housing

55: welding rod 100: electric reactor

Prior to the description of the configuration of the DC reactor according to the present invention, the reactor (reactor) that is used consistently in the present invention refers to the form of a transformer, without the winding of the secondary side, the electromagnetic induction By blocking the surge voltage (Surge), or the ripple (current) in the current to protect the electrical equipment, the current flows smoothly.

The present invention relates to a DC reactor, in which the induced current generated in the circuit by the electromagnetic induction action always flows in a direction that prevents the magnetic flux change that causes the induction action.

When the direct current reactor passes through the rectifier and the alternating current is converted to direct current, the direct current reactor can correct the rippled direct current to a more stable direct current waveform.

Next will be described in detail with the accompanying drawings on the configuration of the DC reactor according to the present invention.

2 is a perspective view of a direct current reactor according to the present invention, FIG. 3 is an exploded perspective view of the direct current reactor according to the present invention, and FIG. 4 is a state diagram of the use of the direct current reactor according to the present invention.

2, 3 and 4, in the DC reactor 100 according to the present invention, a rectangular parallelepiped iron core 10 formed of a plurality of rectangular plate-shaped silicon steel plates 11 is stacked in a central portion. Located in the center of both ends of the iron core 10, the c-shaped fixing member 40 for fixing the DC reactor 100 is mounted inside the electrical equipment, such as welding equipment is fixed by welding.

In addition, a conductor metal plate 20 mainly made of copper is wound about 2 to 4 times outside the iron core 10, and an insulating paper 21 is attached to an inner bottom surface of the conductor metal plate 20 so as to attach the conductor metal plate. It is wound up on the outer side of the iron core 10 together with the 20.

In this case, the width of the insulating paper 21 attached to the conductive metal plate 20 is the same as that of the conductive metal plate 20, but the length of the insulating paper 21 is shorter than that of the conductive metal plate 20. One end is electrically connected to the iron core 10.

In addition, the winding winding strip 30 is wound on the outer side of the conductive metal plate 20, the winding winding strip 30 is such that the side corresponding to the thickness of the winding winding belt 30 is in contact with the conductive metal plate 20. It is wound and spaced about 0.5cm so as not to overlap each other between the wound parts.

In addition, an insulating coating material 31 is coated on the surface of the main winding strip 30 to prevent electrical connection with the conductive metal plate 20.

Here, the iron core 10 has a laminated structure in which a plurality of silicon steel sheets 11 having a size of about 4 cm and a length of about 2 cm are stacked about 3 cm, and the current wound on the main winding strip 30. When applied, it can express a magnetic field accordingly.

In addition, a conductive metal plate 20 having a width of about 6 cm having a width of about 6 cm attached to the inner side of the iron core 10 is attached to the inner side of the iron core 10, where the conductive metal plate 20 is wound. Like the iron core 10, when the current is applied to the main winding strip 30 has a magnetic field, in particular, when used in the electric welder 40, etc., the main winding (with the core 10) The direct current of 30) can be converted into the direct current of a relatively stable waveform.

In addition, the main winding strip 30 is coated with an insulating coating material 31 made of a pulp material or a synthetic resin on the outside thereof, while being electrically insulated from the conductor metal plate 20, a current from the outside is applied and flows. When winding up at right angles to (20), the windings are wound at about 0.5 cm so that the heat dissipation area in contact with air can be widened.

As shown in FIG. 5, the DC reactor 100 may be embedded in an electric device such as an electric welding machine 40 for arc welding to correct a waveform of DC.

The welder 50 includes an inverter 51 for increasing the current frequency provided in the rectangular housing 54, a transformer 52 electrically connected to the inverter 51 to change a voltage, and the transformer. A rectifier 53 electrically connected to 52 to convert alternating current into a direct current, a direct current reactor 100 capable of correcting a pulsated direct current applied from the rectifier 53 to be relatively close to a direct current; It consists of a welding rod 55 for performing welding by applying the current applied from the DC reactor 100.

Here, the inverter 51 converts a current of about 60 Hz applied from the outside to about 20,000 Hz, and the transformer 52 steps down a voltage of about 220V to a voltage of about 30V to 110V.

In general, immediately after the rectification unit 53 is converted from alternating current to direct current, a rich direct current is generated. The direct current is short-circuited at regular intervals so that the direct current required for electric welding is used as it is. The star current will be significantly reduced.

On the other hand, the DC reactor 100 is electrically connected to the rectifier 53 is fastened to the bottom surface of the housing 54 through a fixing member 40 attached to both ends of the iron core 10, from the rectifier 53 When the AC component is rich and a direct current close to the pulse is applied, it can be corrected to be relatively close to the direct current.

Through this, the spark is constantly discharged from the welding rod 55 of the welding machine 50 can be improved weldability.

Next will be described with reference to the accompanying drawings for another embodiment of the DC reactor 100 according to the present invention.

5 is a perspective view of a direct current reactor according to another embodiment of the present invention.

As shown in FIG. 5, the DC reactor 100 has a central core portion having a thickness of about 4 cm and a length of about 2 cm, wherein a plurality of silicon steel plates 11 are stacked to form a rectangular parallelepiped shape having a thickness of about 3 cm. Located on the outer side of the iron core 10, the conductive metal plate 20 of the copper component in which the insulating paper 21 is attached to the inner bottom is wound about 2 to 4 times.

Here, the outer side of the conductor metal plate 20 is wound so that the surface corresponding to the width of the main winding strip 30 is in contact with the conductor metal plate 20, the surface of the main winding strip 30 The insulation coating material 31 of pulp material or synthetic resin is coated.

In addition, the L-shaped fixing member 40 is fixed to the center of both ends of the iron core 10, and may be fixed inside the electric device.

Here, the iron core 10 and the conductive metal plate 20 are magnetically caused by the current applied to the main winding 30 according to the electromagnetic induction principle.

In addition, since the length of the conductive metal plate 20 is relatively longer than that of the insulating paper 21 attached to the bottom, one end of the conductive metal plate 20 is electrically connected to the iron core 10.

At this time, the current applied to the main winding strip 30 is rectified and DC-directed DC current which is rectified immediately before the application, and is mounted on the electric welding machine 50 or the like by electromagnetic induction of the DC reactor 100. If used, it can be converted to a waveform that is relatively near direct current.

Next, the manufacturing process of the DC reactor 100 according to the present invention will be described.

First, a plurality of silicon steel plates 11 having a rectangular plate shape having a length of about 4 cm and a length of about 2 cm are laminated to a height of about 3 cm to form an iron core 10.

Then, the insulating paper 21 having a width of about 6 cm is attached to the conductive metal plate 20 having the same width but having a relatively longer length.

The conductive metal plate 20 to which the insulating paper 21 is attached is wound about 2 to 4 times in parallel to the outer side of the iron core 10.

Next, the insulation winding material 31 is coated on the main winding strip 30 of the metal material, and the insulating liquid is applied to the surface of the main winding strip 30 again. Then, the direct current reactor 100 is wound by being wound at right angles or parallel to the outside of the conductive metal plate 20. Complete

As described above, in the DC reactor 100 according to the present invention, the shape of the iron core 10 may be arbitrarily selected from □ cube shape, E shape, cylindrical shape, cube shape, etc. in addition to the rectangular parallelepiped. In addition, the DC reactor 100 having various characteristics may be manufactured by varying manufacturing conditions such as winding times of about 2 to 4 times of the conductive metal plate 20 to which the insulating paper 21 is attached.

In addition, the material of the conductive metal plate 20 may be arbitrarily selected from conductive metal materials such as silver, aluminium, gold, platinum, etc., through which electricity can flow smoothly in addition to copper.

According to the DC reactor according to the present invention as described above, since the conductive metal plate is located between the iron core and the winding winding band, the magnetic field implementation degree by electromagnetic induction is high, so that the waveform can be relatively close to the direct current.

In addition, since there is no short-circuit in the DC flow with the DC waveform close to the direct current, there is an effect that the supply of the arc is constantly supplied when applied to arc electric welding.

Therefore, the weldability of the arc electric welding is increased, so that the welding is easy, the welding sensitivity and the welding bead are smooth, and bubbles are less generated in the welding object, thereby improving the welding efficiency.

In addition, the amount of power required for welding is reduced, the power consumption is relatively excellent.

Claims (3)

An iron core 10 formed by stacking a plurality of silicon steel plates 11; A conductive metal plate 20 attached to an insulating paper 21 at a bottom thereof and wound around the iron core 10; And DC reactor, characterized in that consisting of; winding winding (30) is wound on the outer side of the conductor metal plate 20 is coated with an insulating coating material (31). The method of claim 1, The main winding strip 30 is a DC reactor, characterized in that the side corresponding to the thickness of the winding winding strip 30 is wound so as to contact the conductor metal plate (20). The method of claim 1, The main winding strip 30 is a DC reactor, characterized in that the surface corresponding to the width of the winding winding strip 30 is wound so as to contact the conductive metal plate (20).