KR101612342B1 - High-voltage high-current discharge device for generating an electromagnetic pulse power - Google Patents

Abstract

Disclosed is a high-voltage high-current discharge device for generating electromagnetic pulse power. The high-voltage high-current discharge device includes a capacitor bank including a plurality of capacitors which are connected in parallel to each other and in which high-current high-voltage electric energy is stored, a conductor connector one end of which is connected to capacitor positive (+) electrodes formed on the upper sides of the capacitors, respectively, a trigger switch including an upper end electrode and a lower end electrode which is connected to the other end of the conductor connector, a plate type positive (+) electrode which is composed of one plate and a preset portion of which is connected to the upper end electrode of the trigger switch, an inductor connector that connects one end of the plate type positive electrode and one end of an inductor, a plate type negative (-) electrode which is composed of one plate and one end of which is connected to the other end of the inductor, a cylindrical conductor which has a cylindrical shape and one end of which is connected to the other end of the plate type negative electrode, and a lower plate type conductor one end of which is connected to the other end of the cylindrical conductor and the other end of which is connected to the capacitor negative (-) electrodes formed on the upper sides of the capacitors, respectively.

Description

TECHNICAL FIELD [0001] The present invention relates to a high-voltage high-current discharge device for generating an electromagnetic pulse power,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high voltage high current discharging device, and more particularly, to a high voltage high current discharging device and method for generating electromagnetic pulse power.

Material processing or welding processes using electromagnetic pulse power flow high voltage high currents in an inductor in a very short time, inducing very high electromagnetic force in the metal material adjacent to the inductor. In particular, it is a method of forming, welding and densifying compaction of a metal material by using electromagnetic force.

In the process using the electromagnetic pulse power, a high electric current can be obtained by increasing the discharge current flowing through the inductor by using the same electric energy. For this purpose, the discharging time of the large current discharged from the capacitor bank may be several to several tens of microseconds or It must be reduced to several hundred microseconds and discharged very momentarily. Therefore, in order to reduce the discharging time of the discharged large current, the impedance of the discharge path that carries the current from the capacitor bank to the inductor must be minimized.

Particularly, since the impedance of the discharge path is greatly affected by the arrangement and position between the components of the discharge path, much research has been conducted on the design of the discharge path.

Korean Patent Laid-Open Publication No. 10-2011-0073791 discloses an electromagnetic pulse welding method capable of applying electromagnetic pulse welding even for a material whose firing is reduced at room temperature and for performing electromagnetic pulse welding without increasing capacity even for a thick material. Apparatus and a welding method.

Korean Patent Laid-Open Publication No. 10-2010-0013133 relates to a pulsed power supply device applied to an electromagnetic molding apparatus capable of setting and changing an output voltage by a user.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a high voltage high current discharging apparatus and method for generating electromagnetic pulse power that minimizes a gap between a plate type anode electrode and a plate type cathode electrode so as to minimize the impedance of a discharge path.

It is another object of the present invention to provide a high voltage high current discharging device and method for generating electromagnetic pulse power which can be applied to a material processing or a welding process using electromagnetic pulse power.

It is another object of the present invention to provide a high voltage high current discharging apparatus and method for generating electromagnetic pulse power for increasing the efficiency by inducing a high electromagnetic force in the same electric energy by reducing the overall size of the high voltage high current discharging device .

According to an aspect of the present invention, there is provided a high voltage high current discharging device for generating electromagnetic pulse power,

A capacitor bank including a plurality of capacitors connected in parallel to store electric energy of a high voltage and a high current, a conductor connection part having one end connected to a capacitor positive electrode formed on the upper side of the capacitor, a top electrode and a bottom electrode, A trigger electrode connected to the other end of the conductor connection portion and the lower electrode, a plate-shaped positive electrode connected to a predetermined portion of the upper electrode of the trigger switch, And an inductor connection part connected to one end of the inductor, a plate-shaped negative electrode (negative electrode) formed of a single plate, the other end of the inductor being connected to one end of the inductor, And the other end of the cylindrical electric conductor is connected to the other end of the cylindrical electric conductor, and the other end is connected to the upper end of the capacitor And a lower plate-shaped conductor connected to each of the formed capacitor cathode (-) electrodes.

The conductor connection portion is formed in a rectangular tube shape.

And the trigger switch is formed in a cylindrical shape.

And an insulating plate including an insulator is provided between the plate-shaped negative electrode and the plate-shaped positive electrode.

The thickness of the insulating plate is 1 to 6 mm.

The thickness of the plate-shaped cathode electrode and the plate-shaped anode electrode is 0.5 to 5 mm.

The cylindrical conductor is formed so as to surround the conductor connection portion and the trigger switch so as to be disposed therein.

And a cylindrical insulator including an insulator between the cylindrical conductor and the trigger switch.

The thickness of the cylindrical insulator is 1 to 6 mm.

According to another aspect of the present invention, there is provided a high voltage high current discharging device for generating electromagnetic pulse power,

A capacitor bank including a plurality of capacitors connected in parallel to store a high voltage high current, a conductor connection part connected at one end to a capacitor positive electrode formed on the upper side of the capacitor, an upper electrode and a lower electrode, A trigger electrode connected to the other end of the connection portion and the lower electrode, a plate-shaped positive electrode formed by one plate and connected to a predetermined portion of the upper electrode of the trigger switch, An inductor connection part having one end connected to the other end of the inductor, a plate-shaped negative electrode (negative electrode) formed by one plate and connected to the other end of the inductor, and a cylinder connected to the other end of the plate- Type conductor and the other end of the cylindrical conductor are connected to each other and the other end is connected to the upper end of the capacitor The plate-shaped anode electrode, the plate-shaped cathode electrode, and the lower plate-shaped conductor each include a connection portion to increase or decrease the number of capacitors of the capacitor bank. .

The apparatus and method for high voltage high current discharge for generating electromagnetic pulse power according to the present invention minimize the interval between the plate-shaped anode electrode and the plate-shaped cathode electrode so as to minimize the impedance of the discharge path.

It is also applicable to material processing or welding process using electromagnetic pulse power.

In addition, by reducing the overall size of the high voltage high current discharging device, it induces a high electromagnetic force in the same electric energy to increase the efficiency.

1 is a cross-sectional view illustrating a high voltage high current discharging device according to an embodiment of the present invention.
2 is a plan view illustrating a high voltage high current discharging device according to an embodiment of the present invention.
3 is a plan view for explaining the shape of a plate-shaped anode according to an embodiment of the present invention.
4 is a plan view for explaining a shape of an insulating plate according to an embodiment of the present invention.
5 is a plan view for explaining a shape of a plate-shaped cathode electrode according to an embodiment of the present invention.
6 is an enlarged cross-sectional view of portion A of Fig.
Fig. 7 is an enlarged cross-sectional view of a portion B in Fig. 1. Fig.
FIG. 8 is a perspective view illustrating a shape of a plate-shaped cathode electrode, a cylindrical conductor, and a lower plate-shaped conductor according to an embodiment of the present invention.
Fig. 9 is an enlarged cross-sectional view of the inside of Fig. 8;
10 is a perspective view illustrating a high voltage high current discharging device according to an embodiment of the present invention.
11 is a perspective view for explaining a high voltage high current discharging device according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals as used in the appended drawings denote like elements, unless indicated otherwise. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather obvious or understandable to those skilled in the art.

1 is a cross-sectional view illustrating a high voltage high current discharging device according to an embodiment of the present invention.

Referring to FIG. 1, the high-voltage high-current discharging device 1 minimizes the interval between the plate-shaped anode electrode and the plate-shaped cathode electrode so as to minimize the impedance of the discharge path. The high voltage high current discharging device 1 is applicable to a material processing or welding process using electromagnetic pulse power. The high voltage high current discharge device 1 increases the efficiency by inducing a high electromagnetic force from the same electric energy by reducing the overall size of the high voltage high current discharge device.

The high voltage high current discharging device 1 includes a capacitor bank 110, a conductor connecting portion 120, a trigger switch 130 and an inductor connecting portion 140.

The capacitor bank 110 charges and discharges electrical energy, which is a high voltage, large current. The capacitor bank 110 is connected in parallel with a plurality of large capacity capacitors to discharge a large current of several tens to several hundreds of kA.

The capacitor bank 110 includes a plurality of capacitors. The plurality of capacitors includes a first capacitor 111, a second capacitor 112, a third capacitor 113, a fourth capacitor 114, a fifth capacitor 115 and a sixth capacitor 116. Here, the capacitor bank 110 is not limited to the first to sixth capacitors, and may include fewer or more capacitors. The first to sixth capacitors may be arranged in two rows by three.

The capacitor bank 110 may be connected to each of the capacitors by a trigger switch 130 to be described later, or the capacitor bank 110 may be connected to one trigger switch 130 per a plurality of capacitors.

That is, the capacitor bank 110 is charged by the simultaneous operation of the trigger switches connected to the first to sixth capacitors 111, 112, 113, 114, 115, and 116 It is possible to discharge electric energy to the discharge path in the form of high voltage and high current.

The conductor connection portion 120 is formed on the upper side of each capacitor to prevent the trigger switch 130 and the capacitor from being connected directly without clearance. The conductor connection portion 120 is formed in a rectangular shape. Particularly, the conductor connection portion 120 is formed of a material that is easily deformable, such as a copper plate having a high ductility, so as to offset clearances, dimensional errors, and the like when assembling the entire components. Accordingly, the conductor connection portion 120 eliminates the difficulty of assembly due to clearances and dimensional errors (threads) at the time of assembling each component.

The trigger switch 130 maintains an OFF state in a normal state, and is energized by a control voltage applied to a trigger signal electrode, which will be described later, during operation to instantaneously discharge a large current. The trigger switch 130 has electrodes at upper and lower ends, respectively, and may be formed in a cylindrical shape, but the shape is not limited. The trigger switch 130 includes a vacuum trigger switch, an arc gap switch, a spot gap switch, an ignitron, and the like.

The inductor connection 140 couples the pulse energy emitted from the capacitor bank 110 to an inductor (not shown). In this case, since the discharge current flowing in the inductor becomes larger as the pulse energy becomes higher and higher, the inductor can generate a high electromagnetic force.

3 is a plan view for explaining a shape of a plate-shaped anode according to an embodiment of the present invention, and FIG. 4 is a cross- FIG. 5 is a plan view illustrating a shape of a plate-shaped cathode electrode according to an embodiment of the present invention. FIG.

2 to 5, the high voltage high current discharging device 1 includes a plate type positive electrode (positive electrode) 210, an insulating plate 220 and a plate type negative electrode (-) electrode 230.

The plate-shaped anode electrode 210 is formed of a rectangular plate, and connects the first to sixth capacitors 111, 112, 113, 114, 115, and 116 included in the capacitor bank 110 together. The plate-shaped anode electrode 210 is formed with a hole in a predetermined portion. The predetermined portion may include one hole through which the trigger signal electrode formed at the upper center of each trigger switch 130 can be inserted, and six through-holes (not shown) formed in the upper end of the trigger switch 130, It is a hole that can be fixed. In addition, the plate-shaped anode electrode 210 is folded at one end to form a plurality of connection holes that can be fastened to the inductor connection portion 140 using bolts and nuts.

The thickness of the plate-shaped anode electrode 210 is 0.5 to 5 mm, preferably 2 mm. The plate-shaped anode electrode 210 includes a conductor such as a copper alloy or stainless steel. Particularly, in order to reduce the reverse current when discharging the current of the high voltage high current discharger 1, the plate type anode electrode 210 is preferably a stainless steel having a relatively high specific resistance value.

The insulating plate 220 includes an insulator, and is formed as a single plate. The insulating plate 220 forms a circular hole larger than the trigger switch 130 so as not to be connected to the trigger switch 130. Thus, the insulating plate 220 is formed with six holes. Here, the thickness of the insulating plate 220 is 1 to 6 mm, preferably 2 mm.

The plate-shaped cathode electrode 230 is formed of a single rectangular plate and forms a circular hole larger than the trigger switch 130 so as not to be connected to the trigger switch 130. At this time, the holes may be the same interval, size and number as the holes of the insulating plate 220. Accordingly, the plate-like cathode electrode 230 may be formed with six holes.

Like the plate-shaped anode electrode 210, the plate-shaped cathode electrode 230 is formed with a plurality of connection holes that can be connected to the inductor connection portion 110 using bolts and nuts at one end.

The thickness of the plate-shaped cathode electrode 230 is 0.5 to 5 mm, preferably 2 mm. The plate-shaped cathode electrode 230 includes a conductor such as a copper alloy or stainless steel. In particular, in order to reduce the reverse current when the current is discharged from the high voltage high current discharger 1, the plate-like cathode electrode 230 is preferably a stainless steel having a relatively high specific resistance value.

Here, the plate-shaped cathode electrode 230 is formed by laminating the insulating plate 220 and the plate-shaped anode electrode 210 in this order. The size of the insulating plate 220 is larger than that of the plate-shaped anode electrode 210 and the plate-shaped cathode electrode 230. The plate-shaped anode electrode 210 and the plate-shaped cathode electrode 230 can be insulated from each other

6 is an enlarged cross-sectional view of portion A of Fig.

6, the high voltage high current discharge device 1 includes a capacitor bank 110, a conductor connection 120, and a trigger switch 130. [

The capacitor bank 110 forms a capacitor anode (+) electrode 610 on top of each capacitor. At this time, the capacitor anode electrode 610 may be formed at the center of the upper portion of the capacitor, and is connected to the height adjusting pedestal 620 to facilitate the height adjustment.

The capacitor anode electrode 610 is connected to one end of the conductor connection part 120. The capacitor anode electrode 610 is formed in a bolt shape. Here, the one end is the lower portion of the conductor connecting portion 120. Also, the capacitor anode electrode 610 is fixed by the fixing nut 630 so as to be fixed to the conductor connection portion 120. The fixing nut 630 is provided inside the conductor connection part 120 and is tightened to the bolt type capacitor anode electrode 610 to join the conductor connection part 120 and the capacitor anode electrode 610.

The other end of the conductor connection portion 120 is connected to the trigger switch lower electrode 640. Here, the other end is the upper portion of the conductor connection portion 120. Since the conductor connection portion 120 includes a metal having a high conductivity such as copper, a large current applied from the capacitor anode electrode 610 is applied to the trigger switch bottom electrode 640 with a minimum loss. In addition, the conductor connection portion 120 is formed in a square tube shape and can be easily deformed to compensate clearances and dimensional errors when assembling the entire components.

The trigger switch 130 is applied with a large current from the trigger switch bottom electrode 640. The trigger switch 130 is kept off while the trigger signal is not applied, and the large current is momentarily discharged when the trigger switch 130 is applied. The trigger switch 130 includes a vacuum trigger switch, an arc gap switch, a spot gap switch, an ignitron, and the like.

Fig. 7 is an enlarged cross-sectional view of a portion B in Fig. 1. Fig.

7, the high-voltage high-current discharging device 1 includes a trigger switch 130, a plate-shaped anode electrode 210, and a trigger signal electrode 720.

The trigger switch 130 applies a large current applied from the conductor connection portion 120 to the plate-shaped anode electrode 210 through the trigger switch upper electrode 710. At this time, the trigger switch upper electrode 710 and the plate-type anode electrode 210 are fixed using a nut-shaped hole drilled in the trigger switch upper electrode 710 and an external bolt.

The trigger signal electrode 720 receives a control voltage. The control voltage is a signal for instructing discharge of a large current. If a control voltage is applied to the trigger signal electrode 720, the large current is discharged to the inductor connection part 140.

FIG. 8 is a perspective view illustrating a shape of a plate-shaped cathode electrode, a cylindrical conductor, and a lower plate-shaped conductor according to an embodiment of the present invention, and FIG. 9 is an enlarged cross-sectional view of FIG.

8 and 9, the high voltage high current discharging device 1 includes a plate-shaped cathode electrode 230, a cylindrical conductor 810 and a lower plate-shaped conductor 820.

The plate-shaped cathode electrode 230 is connected to a cylindrical conductor 810 formed so as to surround the trigger switch 130 at the end of the hole into which the cylindrical trigger switch 130 is inserted.

At this time, the connection between the plate-like cathode electrode 230 and the cylindrical conductor 810 is strongly bonded by a method such as welding or brazing, so that it does not interfere with the electric current. Further, a cylindrical insulator 815 for insulation is provided between the cylindrical conductor 810 and the trigger switch 130. Here, the thickness of the cylindrical insulator 815 is 1 to 6 mm, preferably 2 mm. That is, the interval between the cylindrical conductor 810 and the outer periphery of the trigger switch 130 is minimized to reduce the impedance.

The cylindrical conductor 810 is connected to the lower plate-shaped conductor 820 including the hole into which the cylindrical trigger switch 130 is inserted and the hole end of the lower plate-shaped conductor 820 by means of welding, brazing, .

The lower plate-shaped conductor 820 is formed with a hole to be connected to the capacitor negative electrode (-) electrode 930. The lower plate type conductor 820 and the capacitor cathode electrode 930 are fixed using a fixing nut 920 formed of a conductor along the thread formed on the capacitor cathode electrode 930 through the hole. Further, the height of the bottom plate-shaped conductor 820 is adjusted using the second height adjusting pedestal 920.

10 is a perspective view illustrating a high voltage high current discharging device according to an embodiment of the present invention.

Referring to FIG. 10, the high-voltage high-current discharging device 1 generates electromagnetic pulse power that minimizes the interval between the plate-shaped anode electrode and the plate-shaped cathode electrode so as to minimize the impedance of the foreground path.

The high voltage high current discharger 1 includes a capacitor bank 110 in which a plurality of capacitors are connected in parallel so as to discharge the high voltage high current to the inductor in several to several tens of microseconds or several hundreds of microseconds. The high-voltage high-current discharger 1 arranges a plurality of rectangular-shaped capacitors close to each other, and connects a rectangular tube-shaped conductor connection portion 120 formed by bending a plate-shaped conductor plate to each capacitor. The high voltage large current discharger 1 connects the capacitor anode electrode 610 and the trigger switch lower electrode 640 and connects one plate anode electrode 210 common to the plurality of trigger switch upper electrodes 710 in common .

At this time, the insulating plate 220 is disposed below the plate-shaped anode electrode 210, and the plate-shaped cathode electrode 230 is disposed below the insulating plate 220. Here, the interval between the plate-shaped anode electrode 210 and the plate-shaped cathode electrode 230 is minimized.

The high voltage high current discharger 1 connects the plate type cathode electrode 230 to one common lower plate type conductor 820 by a plurality of cylindrical conductors 810 surrounding the cylindrical trigger switch 130. The high-voltage high-current discharger 1 connects the lower plate-like conductor 820 to the capacitor cathode electrode 930.

Here, the plurality of cylindrical conductors 810 and the lower plate-shaped conductor 820 minimize the interval between the plate-shaped anode electrode 210 and the plate-shaped cathode electrode 230.

11 is a perspective view for explaining a high voltage high current discharging device according to another embodiment of the present invention.

11, the high voltage high current discharging device 2 has the same structure and structure as the high voltage high current discharging device 1. [ However, the high voltage high current discharging device 2 is formed in a structure in which it is easy to increase or decrease the number of capacitors of the capacitor bank 110. The high voltage high current discharging device 2 includes connecting portions 1110 and 1120.

The connection portions 1110 and 1120 are formed on the plate-shaped anode electrode 210, the plate-shaped cathode electrode 230, and the lower plate-shaped conductor 820. The connection portions 1110 and 1120 are formed at one ends of the plate-shaped anode electrode 210, the plate-shaped cathode electrode 230 and the lower plate-shaped conductor 820. The formed connection portions 1110 and 1120 are formed in an 'a' shape, and a plurality of holes are formed and fixed using bolts and nuts.

That is, the connection portions 1110 and 1120 serve to connect the capacitor banks 110 so that the number of capacitors of the capacitor banks 110 can be increased or decreased. In this way, the high voltage high current discharging device 2 can regulate the emitted pulse energy.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation in the embodiment in which said invention is directed. It will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.

1: High voltage high current discharge device
110: Capacitor bank
111: first capacitor
112: second capacitor
113: third capacitor
114: fourth capacitor
115: fifth capacitor
116: sixth capacitor
120: conductor connection
130: Trigger switch
140: inductor connection
210: Plate type anode (+) electrode
220: insulating plate
230: Plate type cathode (-) electrode
610: Capacitor anode (+) electrode
620, 910: Pedestal for height adjustment
630, 920: Fixing nut
640: Trigger switch bottom electrode
710: Trigger switch upper electrode
720: Trigger signal electrode
810: Cylindrical conductor
815: Cylindrical insulator
820: Lower plate type conductor
930: capacitor cathode (-) electrode
1110, 1120:

Claims (10)

A capacitor bank including a plurality of capacitors connected in parallel to store electrical energy of a high voltage and a large current;
A conductor connection part having one end connected to a capacitor positive (+) electrode formed on the upper side of the capacitor;
A trigger switch having an upper electrode and a lower electrode and disposed at an upper portion of the conductor connection portion, the other end of the conductor connection portion and the lower electrode being connected to each other;
A plate-shaped positive (+) electrode formed of one plate and connected to a predetermined portion of the upper electrode of the trigger switch;
An inductor connection part having one end of the plate-shaped anode electrode and one end of the inductor connected to each other;
A plate-shaped negative (-) electrode formed on one plate and disposed on the trigger switch and having one end connected to the other end of the inductor;
An insulating plate disposed between the plate-shaped positive electrode (+) electrode and the plate-shaped negative electrode (-) electrode and including an insulator;
A cylindrical electric conductor formed in a cylinder shape and connected at one end to the other end of the plate-like cathode electrode; And
And a lower plate-shaped conductor having one end connected to the other end of the cylindrical conductor and the other end connected to a capacitor negative electrode (-) formed on the upper side of the capacitor,
Wherein the cylindrical conductor is formed so as to surround the conductor connection portion and the trigger switch such that the conductor connection portion and the trigger switch are disposed inside the high voltage high current discharge device.
The method according to claim 1,
The conductor connection portion
Wherein the first electrode and the second electrode are formed in a square tube shape.
The method according to claim 1,
Wherein the trigger switch is formed in a cylindrical shape. ≪ RTI ID = 0.0 > 11. < / RTI >
delete The method according to claim 1,
The thickness of the insulating plate may be,
1 to 6 mm. ≪ / RTI >
The method according to claim 1,
The thickness of the plate-like cathode electrode and the plate-
0.5 to 5 mm. ≪ / RTI >
delete The method according to claim 1,
And a cylindrical insulator including an insulator between said cylindrical conductor and said trigger switch. ≪ Desc / Clms Page number 20 >
9. The method of claim 8,
The thickness of the cylindrical insulator is,
1 to 6 mm. ≪ / RTI >
A capacitor bank including a plurality of capacitors connected in parallel to store a high voltage high current;
A conductor connection part having one end connected to a capacitor positive (+) electrode formed on the upper side of the capacitor;
A trigger switch disposed at an upper portion of the conductor connection portion and having an upper electrode and a lower electrode, the other end of the conductor connection portion being connected to the lower electrode;
A plate-shaped positive (+) electrode formed of one plate and connected to a predetermined portion of the upper electrode of the trigger switch;
An inductor connection part having one end of the plate-shaped anode electrode and one end of the inductor connected to each other;
A plate-shaped negative (-) electrode formed on one plate and disposed on the trigger switch and having one end connected to the other end of the inductor;
An insulating plate disposed between the plate-shaped positive electrode (+) electrode and the plate-shaped negative electrode (-) electrode and including an insulator;
A cylindrical electric conductor formed in a cylinder shape and connected at one end to the other end of the plate-like cathode electrode; And
And a lower plate-shaped conductor having one end connected to the other end of the cylindrical conductor and the other end connected to a capacitor negative electrode (-) formed on the upper side of the capacitor,
The plate-shaped anode electrode, the plate-shaped cathode electrode, and the lower plate-
Each of the capacitors further includes a connection portion to increase or decrease the number of capacitors of the capacitor bank,
Wherein the cylindrical conductor is formed so as to surround the conductor connection portion and the trigger switch such that the conductor connection portion and the trigger switch are disposed inside the high voltage high current discharge device.

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