KR100843457B1 - Busbar insulation device and structure of steel distribution board - Google Patents

Abstract

The present invention relates to a steel distribution board busbar insulator and structure to prevent contact by the operator's hands or tools from the busbars on each circuit in the distribution board, to ensure safety against electrical interference, due to the exposure of the energized part during maintenance of the switchgear. It is formed of an insulating plate and an insulating cover that can eliminate the risk of electric shock, thereby improving safety and workability at the same time, and at the same time, miniaturizing the size of the distribution board and without additional circuit processing when additional circuits or deletions are made. It relates to steel distribution board busbar insulation device and structure that can reduce parts standardization, assembly labor and cost which connect phase shortage and main busbar shortage.

Distribution panel, busbar, wiring breaker, earth leakage breaker, circuit breaker, switchgear,

Description

Busbar Insulation Equipment and Structure of Steel Distribution Board {Cabinet Panel Busbar Insulation Equipment, Construction}

1 is a perspective view showing a distribution panel according to the prior art

Figure 2 is a front view showing a distribution panel according to the prior art

Figure 3 is a bottom view showing a distribution panel according to the prior art

Figure 4 is an exploded perspective view showing a distribution panel according to the present invention

5 to 6, 7 is a structural diagram according to the change in the partial shape that can be derived according to the present invention.

(Explanation of symbols for the main parts of the drawing)

      1: main switchgear 2: branch switchgear

      3: pedestal 4: pedestal

      8: hexagon wrench bolt 11: busbar busbar

     12: fastening screw 13: lack busbar busbar

     14: connection terminal

     21: branch busbar 24: middle terminal

     26: phase connection terminal 28: screw

     31 terminal block 41 lower insulating plate

     44: upper insulation cover 46: lower insulation pedestal

     48: upper and lower phase insulation cover 50: upper terminal cover

    110: distribution box 100: base

      a: Distance A: Information Home

B: Insulation layer C: Interphase terminal cover
Between phases: between phases (R phase, S phase, T phase, N phase)

The present invention relates to a steel distribution board busbar insulation device and structure, to prevent contact between the busbar of each phase (R phase, S phase, T phase, N phase) in the distribution panel by the operator's hand or tool, and to prevent electrical interference. When the switch is repaired to ensure safety, it can solve the risk of electric shock accidents due to the exposure of the energized part and at the same time, the size of the distribution panel enclosure can be miniaturized, and the insulation plate is integrally formed to improve safety and workability simultaneously. This invention relates to a steel distribution board busbar insulation device and structure to reduce parts standardization and assembly labor and cost that can be processed without separate busbar processing.

What is distribution panel?

 It is a device that serves as the inlet of the converter that distributes the electric power supplied from the outside in the industrial equipment circuit and the indoor / outdoor circuit of the building to the capacity of the load.It consists of internal equipment (circuit breaker such as circuit breaker and earth leakage breaker) on its inner plate. It is an electric control device that prevents accidents by cutting off the circuit from the bus in case of overcurrent or short circuit.

 As an installation place, it is installed on the inside and outside walls of the building, outside walls, or in a separate room, and checks and maintains the inside of the distribution panel at any time in case of an accident.

In the conventional distribution board of the present invention, as shown in FIG. 1.2.3, a busbar bus 11 is connected to a main switch 1 mounted on the base 100 surface of the distribution box 110, and both busbars 11 are connected. The branch switchgear 2 is connected to the branch busbar 21 is connected to each of the bus bar 11, respectively.

At this time, the busbar busbar 11 and the branch busbar 21, and the branch switchgear 2 on the opposite side to the arbitrary branch switchgear 2 are designed to have a sufficient separation distance to ensure mutual insulation.

Meanwhile, even when the single-phase branch switchgear 2 is connected to the bus busbar 11, the distance between the branch switchgear 2 and the branch switchgear 2 and between the branch busbars 21 so as to maintain a sufficient insulation distance. The spacing should be far enough apart.

As described above, the switch mounting structure of the conventional distribution board has a bus bus 11 and a branch bus bar at a predetermined distance to maintain the insulation distance between phases in a state where the branch switch 2 is spaced more than the width of the main switch 1. By installing (21), the energized part was exposed excessively, and there was a high risk of electric shock accidents during maintenance and replacement of equipment.

As a result, the user of the other track that does not need to be repaired should perform work while the main switch 1 is turned off during the repair work, which is disadvantageous in that power is not used until the repair work is completed. .

In addition, as the distance (a) of the breaker or the switch is farther away, the size of the enclosure 110 becomes larger, and as the capacity of the main switch 1 increases, the distribution panel enclosure becomes larger, thereby increasing the manufacturing cost and the distribution box. Due to the heavy steel, there was a disadvantage in that the worker had difficulty in installing the distribution board.

In particular, there is no standard arrangement structure for the circuit breaker and the switchgear arranged in the distribution panel during the installation work of the circuit breaker or switch, so the arrangement of the busbar busbar 11 and the branch busbar 21 according to the configuration of the wiring line is eloquently spoken. Since there is no other way than to do it each time, there was a problem that a lot of inconvenience occurs even when producing a distribution board.

That is, it is difficult to select the position for fixing the circuit breaker and the switch installed in the distribution board, and if the position of the screw fastening hole for fixing the switch is not correct, the position of the screw fastening hole should be selected again and formed on the surface of the base 100. There were many problems.

In particular, when the arrangement of circuit breakers due to the circuit change is differently maintained or replaced during maintenance, the busbar busbar 11 should be dismantled, and the process of tightening the screw 12 of the busbar bar 21 should be additionally processed. There is a disadvantage in that the bar 11 needs to be replaced, which is time and costly.

 The present invention solves the above problems, while relieving the risk of electric shock accidents due to the exposure of the energized part during the maintenance of the switchgear in the distribution panel, and at the same time to improve the safety by miniaturizing the size of the distribution panel enclosure, the addition of circuits, deletion and modification In this case, it is an object of the present invention to provide a steel panel board of a busbar insulation device and a structure that achieves standardization and assembly workability of parts that can be processed without processing a separate main busbar.

 In order to achieve the above object, the present invention is connected to each of the main switch mounted on the base surface in the distribution box and the phase between the plurality of guide grooves passing through the bus busbar at a predetermined interval and the bus busbar passing through the guide groove (R phase, S Phase, T phase, N phase) Insulation is formed between the guide groove and the guide groove for insulation, and the terminal block and branch busbar are inserted into the busbar busbar, and after assembly, an insulation film covering the busbar busbar, terminal block and branch busbar is formed. To insulate the bus bar and branch busbar from the outside by fastening to the base surface, and complete the distribution panel by fastening the pedestal equipped with the branch switch on both sides.

After that, it is a steel distribution board busbar insulator composed of an insulating cover for insulating the phase (R phase, S phase, T phase, N phase) sealed from the outside with an insulating cover protecting the branch switch terminal of the completed distribution panel.

In addition, the main busbar and the branch busbar are assembled using the terminal block, so if the circuit addition, deletion, or change occurs, the steel distribution panel can be modified without changing the main busbar.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 4, 5, 6, and 7 as follows.

4 is an exploded perspective view illustrating a state in which the insulation device of the present invention is installed in a distribution box.

The present invention is connected between the main switch 1 and the lower insulation pedestal 46, which is mounted on the surface of the base 100 in the distribution box 110, the plurality of busbars 11 passing through the bus bar 11 at regular intervals, such as the fifth degree Between the guide groove (A) and the guide groove (A) to insulate the phase (R phase, S phase, T phase, N phase) between the guide groove (A) and the bus bar 11 passing through the guide groove (A). The lower insulating plate 41 on which the insulating film B is formed is arranged between the lower part of the main switch 1 and the lower insulating pedestal 41 and the terminal block 31 and the branch bus bar 21 on the bus bus bar 11. ) Is inserted into the guide groove (A) of the lower insulating plate 41 and then assembled in accordance with the interval between the branch switch (2) phase (R phase, S phase, T phase, N phase) and then the busbar bus 11 and the terminal block ( 31), the upper insulating cover 44 covering the branch busbar 21 is fastened to the surface of the base 100 to insulate the bus bar and branch busbars 11 and 21 from the outside and the upper insulating cover 44 On both sides Attach the upper terminal cover 50 to the upper and lower insulated cover 48 to protect the terminal connected to the branch switch 2 after fastening the pedestal 4 to which the main switch 2 is mounted. Steel distribution panel busbar insulation device composed of insulating blocks (41, 44, 46, 48, 50) to perform phase-to-phase (R phase, S phase, T phase, N phase) insulation.

Referring to the assembly process and operation of the present invention configured as described above are as follows.

When manufacturing the distribution board, first, the main switch 1 assembled with the pedestal 3 is installed on the base 100 surface of the distribution box 110, and then the lower insulating plate 41 having a plurality of guide grooves is arranged under the main switch. The lower insulation support 46 is attached to the lower part.

Subsequently, the busbar 11 is placed on the lower insulation plate 41 in the guide groove A on each of the main switches 1 in the lower insulation plate 41 having the guide groove A, and the terminal block 31 is busted. After inserting into the busbar, insert the branch busbar 21 and the middle terminal 24 into the terminal block, and then fit the hexagon wrench bolts (R phase, S phase, T phase, and N phase) to the interval between the branch switchgear (2 phase). Assemble using 8).

Accordingly, the upper and lower upper and lower insulating cover 48 covering the exposed portion of the bus bar 11 under the main switch 1 and the main switch 1 are fixed and assembled to the surface of the base 110 so that the main branch booth is outside. The bars 11 and 21 serve to perform protective insulation.

Meanwhile, in the assembled state as described above, the branch switch 2 mounted on the pedestal 4 is inserted into the branch bus bar 21 protruding upward in accordance with both sides, and then fastened using screws to the surface of the base 100.

 Thereafter, the connecting terminal 26 is inserted into and assembled between the upper and lower branches of the branch switchgear 2, and the upper terminal cover (C) of the upper and lower upper and lower insulated cover 48 is supported as the terminal portion of the assembled branch switch 2 as a support. 50) by fastening with screws 28 to complete the distribution board inner plate assembly.

The completed distribution panel is configured as a closed assembly insulating block from the outside to increase the insulation effect, while reducing the separation distance between the branch switch 2 and the placement device and the busbars on the insulating block, it is possible to miniaturize the distribution panel.

In addition, when changing the circuit, after disassembling the upper terminal cover 50 and the upper insulation cover 44 as shown in FIG. 6, loosen the fixing bolt 8 of the assembled terminal block 31, and reassemble it according to the change branch breaker phase. When the circuit is added, the upper and lower upper and lower insulating cover 48 and the insulating pedestal 46 are dismantled, and then the lower insulating plate 41 having a plurality of guide grooves is additionally mounted with the insulating pedestal 46.

 Thereafter, the busbar busbar 11 and the terminal block 31 which are insufficient are mounted in the guide groove, and then, as shown in FIG. 7, the connection terminal 14 is placed between the busbar busbar 11 and the busbar busbar 13. The terminal block 31, the branch busbar 21 and the intermediate terminal 24 are extended by extending the busbar busbar length by fastening the terminal block 31 and according to the distance between the phases of the branch switchgear 2 and the number of constants. To the main busbar by assembling with the hexagon wrench bolt (8) and then assembling the upper insulation cover (44), the branch switch (2), the upper and lower insulation cover (48), and the upper terminal cover (50). It is a steel distribution panel of structure with insulating device which can be changed additionally.

 As described above, an electric shock accident due to exposure of the energized part during maintenance of the switchgear is prevented by preventing the contact by the operator's hand or tool from the busbars on each circuit in the distribution panel in which the energized part is excessively exposed. In addition to relieving concerns, the size of the distribution panel enclosure can be miniaturized to improve safety and workability at the same time, thereby reducing construction time.In addition, parts can be assembled without additional processing in the event of circuit addition or deletion change. By standardizing this, labor and cost can be reduced.

Claims (3)

Terminal blocks, branch busbars, and intermediate terminals are connected to the main switchgear inside the distribution box, and the terminal blocks, branch busbars, and intermediate terminals are located between the branch switchgear and the lower insulation board formed with an insulating film separating the guide grooves and the guide grooves. After assembling, the upper terminal cover for insulation of busbar and branch busbar is covered on the upper part, and it is fixed to the base surface, and it is composed of the lower insulation plate and the upper insulation cover, and the branch switch is mounted on both sides of the upper insulation cover. The base plate is formed, and the steel switchgear characterized in that the insulation block (41, 44, 46, 48, 50) to insulate from the inside and outside by covering the upper terminal cover on the exposed portion of the upper and lower terminals of the branch switch mounted Insulation block structure delete delete

Images