KR20120025773A - Busbar assembly clamp equipment for distributing board - Google Patents

Abstract

PURPOSE: A bus bar assembly clamp apparatus for a distribution board is provided to reduce costs of raw materials by using a bus bar which surrounds the circumference of an aluminum microsphere with copper. CONSTITUTION: A bottom assembly clamp is formed into a spring steel board. Two or more bus bars(100) are formed on the upper side of the bottom assembly clamp. A top assembly clamp is formed on the upper side of the bus bar. The top assembly clamp is formed into the spring steel board. A fixture unites the bottom assembly clamp and the top assembly clamp at both sides. The fixture composed of a bolt and a nut. The bolt and the nut are combined to a connecting surface of the bottom assembly clamp and the top assembly clamp.

Description

Busbar assembly clamp equipment for switchboards {busbar assembly clamp equipment for distributing board}

The present invention relates to a bus bar assembly clamp device for switchgear, and more particularly, bus bar assembly clamp device for switchgear that can be used in combination with two or more bus bar of the shape encircling the copper circumference of pure copper bus bar or aluminum center body. It is about.

In general, factories, buildings, hospitals, APT complexes, and various industrial facilities use three-phase AC power, which requires a large amount of power. Thousands of volts (V) supplied from power plants through power transmission lines are supplied through transformers. A switchgear is provided for reducing the voltage to an AC voltage of V and supplying the reduced AC voltage to each facility of the factory.

Such switchgear is installed in a place that requires electric power, and converts the high voltage electricity supplied from the power supply source into a low voltage and rated capacity that meets the ratings of various equipment and equipment that are actually used. It is a device for controlling and monitoring.

This switchgear is composed of a circuit breaker and various parts installed for the operation, control and monitoring of the supplied electricity.

In such a switchgear, in order to supply high voltage and high current to the facilities in each plant, each facility and the switchgear are typically connected by a bus bar, and an AC voltage reduced in the switchgear is supplied to the facility through the bus bar.

In this case, the bus bar is a general term for a long metal plate-like product that is used in place of the power cable. Since the bus bar is a flat plate type, the heat dissipation effect is large and its surface area is wide, so that the high-frequency current flows on the surface of the conductor. It can lower the impedance of, which is more advantageous than high speed system with large current.

In addition, the shield effect can be obtained through the installation of a laminate of busbars, and the capacitance of the distribution constant can be obtained very high. It is widely applied to the internal distribution line configuration of power distribution facilities and motor control panels.

Conventionally, most busbars are formed of a copper bar and a rectangular bar-shaped copper plate, as shown in FIGS. 1 and 2, and then the hole 11 is formed at the coupling portion, and the two busbars are combined. The washer 13 and the elastic ring 14 are inserted into the bolt 12, and the nut 12 is installed at the bottom through the hole 11.

As the bus bar is formed using pure copper only as described above, the amount of copper used is high, which causes the installation cost to increase, and due to its high weight and weak rigidity, workability when installing the bus bar is considerably inferior. There is this.

In addition, when the holes 11 are formed in the bus bar 10, there is a problem in that the holes 11 do not coincide with each other when the holes 11 do not coincide with each other.

Therefore, some of them use only aluminum alloy or pure aluminum to form busbars, but in the case of pure aluminum busbars, it is very difficult to produce products that maintain high strength and improve electrical conductivity due to the characteristics of aluminum itself. There is an expensive problem, and the aluminum copper alloy busbar has a huge development cost for overcoming the aluminum and copper melting temperature difference.

Therefore, recently, aluminum copper busbars have been formed by forming a central body of an aluminum bar and forming a copper enclosed periphery of the aluminum center body. In this case, the characteristics of aluminum having a low specific gravity and low raw material cost, Strong strength and excellent electrical conductivity at the same time, but at the same time, when forming holes in the joints, the aluminum is corroded due to the inflow of acid when acid treatment in the punching hole, and when the busbars and busbars are combined using bolts Since it is fastened only by bolts, the contact point is good and the contact point is not secured.

The present invention is to improve the above problems, an object of the present invention is to form a center bar of the aluminum bar bus bar, and to install and make the assembly clamp to use a bus bar of the shape encircling the periphery of the aluminum center body raw material price To provide a busbar assembly clamp device for switchgear, which can reduce the manufacturing process, reduce the manufacturing process, and reduce the labor cost used for processing.

Another object of the present invention is to create and install an assembly clamp that can be assembled without forming a coupling hole in a pure copper busbar or aluminum copper busbar busbar assembly clamp for switchgear panel can reduce the manufacturing process and labor costs used for processing To provide a device.

Another object of the present invention is to fasten the bus bar and the bus bar by using a hole when combining the bolts, so there is a good contact only around the bolts and other parts of the contact is not good, but the bus bar assembly clamps the bus bar and bus bar assembly The present invention provides a busbar assembly clamping device for a switchgear that allows electrical parts to be in uniform contact with each other.

The present invention for achieving the above object in the assembled clamp device capable of combining two or more bus bars of aluminum bars and circumference copper to the bus bar or the center body is a pure copper plate for switchgear,

The lower assembly consists of a lower assembly clamp made of spring steel plate, two or more busbars on the upper assembly lower clamp, the upper assembly clamp made of spring steel plate on the upper bus bar, and a fixture for coupling the upper and lower assembly clamps to each other. It is characterized by.

The lower assembly clamp is a spring steel plate, the lower side of which is a flat surface on both sides of the coupling surface is slightly bent downward and the coupling surface is formed in the lower center before and after the circular groove before and after the groove is formed, the rectangular hole before and after The upper assembly clamp is formed of a spring steel plate, and the upper assembled clamp surface is formed on both sides of the upper surface of which is slightly bent upwardly, and the coupling surface is formed at the upper center. After the circular groove and the groove is formed before and after the rectangular hole is formed, the lower surface is characterized in that the convex contact surface is formed to be curved toward the center.

The fixture consists of a bolt and a nut, and is coupled to both coupling surfaces of the upper and lower assembly clamps, respectively, and the bolt is coupled to the coupling surface of the lower assembly clamp through a rectangular hole formed in the coupling surface of the upper assembly clamp. It is characterized in that coupled to the nut from the bottom through the formed rectangular hole.

The fixing body has a plurality of holes and a lower jaw on one side of the bending bracket fastened to the screw through the upper center, and a plurality of holes in which the locking jaw is inserted into the lower side formed with a locking jaw inserted into the hole. The lower side is formed into a protrusion that can be inserted into a circular groove formed in the coupling surface of the assembly clamp on the inner side of the bending bracket bent inward, the bending bracket on both sides of the coupling surface of the upper, lower assembly clamp The protrusion of the screw is inserted into the circular groove formed on the coupling surface of the lower assembly clamp, and tightening the screw from the upper, characterized in that the lower end of the screw is inserted into the circular groove formed on the coupling surface of the lower assembly clamp is coupled to the coupling.

The fixing body forms a bolt hole in the fixing bracket and the fixing bracket on both sides of the wire and fastens with a nut at one side by inserting a bolt in the bolt hole to surround both coupling surfaces of the upper and lower assembly clamps with the wire. And it is characterized in that by coupling the bolt and nut of the fixing bracket.

The fixing bracket is characterized in that two wires are connected.

The fixing body forms a bolt hole in the fixing bracket and the fixing bracket on both sides of the band, and by using two fixing brackets to which the band is connected, both coupling surfaces of the upper and lower assembly clamps are fixed to the band of the fixing bracket on both sides. Wrap and fasten the bolts and nuts to the bolt holes of the upper and lower fixing brackets.

As described above, the bus bar assembly clamp for switchgear according to the present invention can be used by forming a bus bar center body of aluminum bar and using a bus bar of a shape encircling the center of the aluminum center body to reduce the raw material price and reduce the manufacturing process. It has the effect of reducing the labor cost used for processing.

In addition, since the assembly clamps that can be assembled without forming a coupling hole in a pure copper busbar or aluminum copper busbar are made and installed, there is an effect of reducing the manufacturing process and labor costs used for processing.

In addition, since the conventional busbar and busbar are fastened with bolts using holes when they are joined, there was a part where the contact was good only around the bolt and the other part was not well contacted, but when the busbar and the busbar were assembled with the busbar assembly clamp, all parts were uniformly The electrical conductivity can be improved by allowing contact.

1 is an exploded perspective view for coupling a bus bar and a conventional bus bar.
Figure 2 is a perspective view of a combination of the conventional bus bar and bus bar.
3 is a block diagram of a bus bar made of aluminum bar and circumference copper in the center body according to the present invention.
Figure 4 is an exploded perspective view of the assembly clamp for coupling the bus bar and the bus bar of the embodiment according to the present invention.
Figure 5 is a configuration of fastening the bus bar and the bus bar of the embodiment according to the present invention with a bolt nut using the assembly clamp.
Figure 6 is a configuration in which the bus bar and the bus bar of another embodiment according to the present invention is fastened with a bending bracket using an assembly clamp.
FIG. 7 is a configuration diagram in which a bus bar and a bus bar of another embodiment according to the present invention are fastened with a fixing bracket wire by using an assembly clamp.
(a) is a front view of the bus bar and the bus bar combined with the assembly clamp.
(b) is a side view of the bus bar and the bus bar combined with the assembly clamp.
8 is a configuration diagram in which a bus bar and a bus bar of another embodiment according to the present invention are fastened with two fixing brackets using an assembly clamp.
(a) is a front view of the bus bar and the bus bar combined with the assembly clamp.
(b) is a side view of the bus bar and the bus bar combined with the assembly clamp.
9 is a configuration diagram in which the bus bar and the bus bar of another embodiment according to the present invention are fastened to the band using the assembly clamp,
(a) is a front view of the bus bar and the bus bar combined with the assembly clamp.
(b) is a side view of the bus bar and the bus bar combined with the assembly clamp.
10 is a switchgear configuration showing a state in which the bus bar and the bus bar according to the present invention coupled to the assembly clamp.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood, however, that the present invention may be embodied in many different forms and should not be limited to the described embodiments.

Figure 3 is a block diagram of a bus bar made of aluminum bar circumference copper in the center according to the present invention, Figure 4 is an exploded perspective view of the assembly clamp for coupling the bus bar and the bus bar of an embodiment according to the present invention, Figure 5 Bus bar and bus bar of the embodiment according to the present invention is a configuration diagram fastened with a bolt nut using the assembly clamp.

And, Figure 6 is a block diagram of the bus bar and the bus bar of another embodiment according to the present invention is fastened with a bending bracket using the assembly clamp, Figure 7 is a bus bar and bus bar of another embodiment according to the present invention using the assembly clamp As a configuration diagram fastened with a fixed bracket wire, (a) is a front view of the bus bar and the bus bar combined with the assembly clamp, (b) is a side view of the bus bar and the bus bar combined with the assembly clamp. 8 is a configuration diagram in which a bus bar and a bus bar of another embodiment according to the present invention are fastened by two wires with a fixing bracket using an assembly clamp, (a) is a front view combining the bus bar and the bus bar with an assembly clamp, and (b) 9 is a side view of a bus bar and a bus bar coupled to the assembly clamp, and FIG. 9 is a diagram illustrating a bus bar and a bus bar of another embodiment according to the present invention configured to be fastened by a band using an assembly clamp, and (a) is a bus bar and a bus bar assembled clamp. (B) is a side view of the busbar and the busbar combined with the assembly clamp. 10 is a switchgear configuration showing a state in which the bus bar and the bus bar according to the present invention coupled to the assembly clamp.

The present invention relates to a bus bar assembly clamp device for switchgear, and more particularly to a bus bar assembly clamp device that can be used by combining two or more bus bar of the shape encircling the copper circumference of the pure copper bus bar or the aluminum center body. It is about.

Referring to Figures 3 to 9 when the bus bar assembly clamp device for the switchgear of the present invention is as follows.

The present invention provides an assembly clamp device capable of combining two or more aluminum bus bars and copper bus bars with a circumferential copper body to a bus bar or a central body of a pure copper plate for a switchgear as shown in FIGS. 3 to 9,

Lower assembly clamp 200 made of a spring steel plate at the bottom, two or more bus bars 100 on the lower assembly clamp 200, and the upper assembly clamp 200 made of spring steel plate on the bus bar 100 And, the upper and lower assembly clamp 200 is composed of a fixture for coupling to each other on both sides.

The upper and lower assembly clamps 200 are installed to face each other in the same configuration.

The lower assembly clamp 200 is a spring steel plate, the lower surface of the lower center has a flat surface on both sides is slightly bent downwardly and the coupling surface before and after the front and rear circular grooves and the groove is formed in the lower center A rectangular hole 230 is formed, and the upper surface forms a convex contact surface 212 so as to be bent toward the center, and the upper assembly clamp 200 is a spring steel plate, the upper side of which is a flat surface 210, both sides upwards A slightly bent coupling surface 211 and the coupling surface 211 is formed in a rectangular hole 230 before and after the circular groove 220 and the groove 220 is formed before and after the upper center, the lower, The contact surface 212 is formed such that the surface is curved to the center.

The fixture is composed of a bolt 300 and a nut 310 as shown in Figure 5, the upper and lower assembly clamps are coupled to both sides of the coupling surface 211 of the assembly 200, respectively, the upper bolt 300 is assembled Through the rectangular hole 230 formed in the engaging surface 211 of the cramps 200 through the rectangular hole 230 formed in the engaging surface of the lower assembly clamp 200 to the nut 310 from the bottom. .

The fixing body has a plurality of holes and a lower jaw on one side of the bending bracket 400 fastened to the upper center screw 410 as shown in FIG. The upper and lower assemblies are formed in the lower part of the bending bracket is inserted into the inner side of the bending bracket in which the engaging jaw is inserted into the circular groove formed in the coupling surface of the assembly clamp on the inner side of the bending bracket. Insert the protrusions of the bending bracket 400 into the circular grooves formed on the coupling surface of the lower assembly clamp, respectively, on both coupling surfaces 211 of the cramps 200, and tighten the screws 410 on the lower assembly clamp 200. The lower end of the screw is inserted into the circular groove formed on the engaging surface of the fastening to be coupled.

The fixing body forms a bolt hole in the fixing bracket 500 and the fixing bracket 500 on both sides of the wire 510 as shown in (a) (b) of FIG. 7 and sandwich the bolt 520 in the bolt hole. One side of the upper and lower assembly clamp 200 is configured to be fastened with a nut to wrap both sides of the coupling surface with the wire 510 and to fasten the bolt 520 and the nut of the fixing bracket 500 to be coupled.

As shown in (a) and (b) of FIG. 8, two wires 510a and 510b are connected to the fixing bracket 500.

The fixing body forms a bolt hole in the fixing bracket 600 and the fixing bracket on both sides of the band 610, as shown in Figure 9 (a) (b), the fixing bracket 600 is connected to the band 610 Both sides of the coupling surface of the upper and lower assembly clamp 200 by using two wrap the band 610 of the fixing bracket 600 on both sides and bolts (both bolts of the upper and lower fixing bracket 600) 620 and the nut to be coupled.

As described above, the bus bar assembly clamp device for the switchgear can use both an aluminum bar and a bus bar of copper circumference in a bus bar or a center body that is pure copper.

According to the present invention, in order to couple two or more busbars 100, both sides of the lower center have a flat surface 210 formed with a spring steel plate, and both sides are slightly bent downward, and the coupling surface 211 has a lower center. Before and after the circular groove 220 and before and after the groove 220 is formed, a rectangular hole 230 is formed, the lower assembly clamp 200 having a contact surface 212 with the upper surface curved to the center. ), And the coupling surface 211 and the coupling surface 211 is slightly bent upwardly, the upper center is a flat surface 210 with a spring steel plate and the coupling surface 211 in the upper center before and after the circular groove 220 and the Before and after the groove 220 is formed, a rectangular hole 230 is formed, and two upper assembly clamps 200 having a contact surface 212 having a lower surface curved toward the center are used.

Two or more bus bars 100 are placed on the convex contact surfaces 212 of the lower assembly clamp 200, and the convex contact surfaces 212 of the upper assembly clamp 200 made of spring steel plates are placed on the bus bars 100. Located.

Thereafter, when the upper and lower assembly clamps 200 are coupled to each other by fixing members that are coupled to each other, the coupling surfaces 211 that are spring steel plates are moved inward to each other, and the upper and lower assembly clamps 200 are respectively convex contact surfaces 212. ) Press the center portion of the bus bar 100, the two bus bars 100 are in close contact with each other and are in close contact with each other in a horizontal state, and the upper and lower flat surfaces of the upper and lower assembly clamps 200 become convex. .

When assembling the bus bar 100 and the bus bar 100 as described above, when the two bus bars 100 are combined with the upper and lower assembly clamps 200 and the fixed body, the bus bar 100 and the bus bar 100 are All parts can contact uniformly, and electrical conductivity is improved.

The busbar assembly clamp device for switchgear of the present invention as described above shows a state in which the busbar 100 and the busbar 100 are coupled to the switchgear as an assembly clamp 200 as shown in FIG. 10.

The busbar assembly clamp for switchgear as described above can be used by forming a bus bar center body of aluminum bar and using a bus bar of a shape encircling the aluminum center body to reduce the cost of raw materials, reducing the manufacturing process, and the labor cost used for processing. Can be reduced.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, The present invention may employ various changes, modifications, and equivalents. It is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. Accordingly, the above description does not limit the scope of the invention as defined by the limitations of the following claims.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but it will be apparent to those skilled in the art that various modifications are possible without departing from the scope of the present invention.

100: bus bar 110: aluminum bar
200: assembly clamp 210: flat surface
211: mating surface 212: contact surface
220: Home 230: Hall
300: Bolt 310: Nut
400: Bending bracket 410: Screw
500: Fixed Bracket 510, 510a, 510b: Wire
520: bolt 600: fixed bracket
610: Band 620: Bolt

Claims (7)

In the assembling clamp device which can combine two or more aluminum bar and the bus bar of the periphery copper to the bus bar which is a pure copper plate for a switchgear, or a center body,
The lower assembly consists of a lower assembly clamp made of spring steel plate, two or more busbars on the upper assembly lower clamp, the upper assembly clamp made of spring steel plate on the upper bus bar, and a fixture for coupling the upper and lower assembly clamps to each other. Bus bar assembly clamp device for switchgear characterized in that.
The method of claim 1, wherein the lower assembly clamp is a spring steel plate, the lower surface of the lower center is a flat surface on both sides slightly bent downwardly and the coupling surface before and after the circular groove before and after the groove is formed in the lower center Afterwards, a rectangular hole is formed, and the upper surface forms a convex contact surface so as to be bent toward the center, and the upper assembly clamp is a spring steel plate, the upper surface of which is slightly bent upwardly with both sides of the coupling surface and the coupling surface. The front and rear circular grooves in the upper center, and before and after the groove is formed, the rectangular hole is formed, the bus bar assembly clamp device for switchgear, characterized in that the lower surface is formed convexly convex to the center.
According to claim 2, wherein the fixing body is made of a bolt and a nut, and is coupled to both coupling surfaces of the upper and lower assembly clamps, respectively, the bolt through the rectangular hole formed in the coupling surface of the upper assembly clamp Bus bar assembly clamp device for switchgear, characterized in that coupled to the nut from the bottom through a rectangular hole formed in the coupling surface of the assembly clamp.
The locking jaw of claim 2, wherein the fixing member has a plurality of holes and a lower locking jaw at one side of a bending bracket fastened with a screw through the upper center, and a locking jaw inserted into the hole is formed at an upper side of the locking jaw. The lower side forming a plurality of holes to be inserted into the bending bracket that is bent inwardly formed in the configuration formed a protrusion that can be inserted into a circular groove formed in the coupling surface of the assembly clamp, the upper and lower coupling clamps on both sides The lower end of the screw is inserted into the circular groove formed on the coupling surface of the lower assembly clamp by inserting the protrusions of the bending bracket into the circular groove formed on the coupling surface of the lower assembly clamp on the surface, respectively, Bus bar assembly clamp device for switchgear characterized in that.
The upper and lower assembly of claim 1 or 2, wherein the fixing body is formed by fixing bolts on both sides of the wire and bolt holes on the fixing brackets, and fastening the bolts to the bolt holes with nuts at one side. A bus bar assembly clamping device for a switchgear, characterized in that both sides of the coupling surface of the clamp wraps with the wire and is coupled by fastening the bolt and nut of the fixing bracket.
6. The bus bar assembly clamping device according to claim 5, wherein two wires are connected to the fixing bracket.
According to claim 1 or 2, wherein the fixing body is formed on both sides of the band fixing bracket and the fixing bracket bolt holes, using the two fixing brackets that the band is connected to both sides of the upper and lower assembly clamps A bus bar assembly clamping device for switchgear, characterized in that the sides are respectively wrapped with bands of fixed brackets on both sides, and the upper and lower sides of the fixed bracket bracket brackets are coupled to each other.

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