KR20060101418A - Cabinet panel busbar insulation equipment, construction - 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: main busbar

     12: fastening screw 13: tribal main 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

The present invention relates to a steel distribution board busbar insulation device and structure to prevent contact by the operator's hand or tool from the busbars on each circuit in the distribution board, to ensure safety against electrical interference, and to protect the switch when exposed to the energized part. In addition to eliminating the risk of electric shock, the size of the distribution panel enclosure can be miniaturized, and the insulation board is integrally formed to improve safety and workability at the same time. The invention relates to a steel distribution board busbar insulation device and structure that can reduce the number of parts standardization and assembly labor and cost.

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. An electric control device that prevents accidents by cutting off the circuit from the main 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 panel of the present invention, as shown in FIG. 1.2.3, the main busbar 11 is connected to the main switch 1 mounted on the base 100 surface of the distribution box 110, and both main busbars 11 are provided. The branch switchgear 2 is connected to the branch bus bar 21 is connected to the main bus bar 11, respectively.

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

On the other hand, the main busbar 11 is spaced between the branch switchgear 2 and the branch switchgear 2 and between the branch busbars 21 so that a sufficient insulation distance is maintained even when the single-phase branch switchgear 2 is connected. The spacing should be far enough apart.

As described above, the switch mounting structure of the conventional distribution panel has a main bus bar 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, since 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 the switchgear, the arrangement of the main 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.

Particularly, when the circuit breaker is arranged differently or replaced due to the change of circuit during maintenance, the busbar 11 should be dismantled and the process of tightening the screw 12 of the branch busbar 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 is mounted on the base surface in the distribution box, the guide groove for the phase insulation between the plurality of guide grooves passing through the main busbar at regular intervals and the main busbar passing through the guide groove An insulating film is formed between the guide groove and the guide groove, and a terminal block and a branch busbar are inserted into the main busbar. After assembly, a cover formed with an insulating film covering the main busbar, the terminal block and the branch busbar is fastened to the base surface to block the main branch busbar from the outside. Insulation is performed, and the pedestal with branch switches on both sides is fastened to complete the distribution panel.

Subsequently, an insulation cover for protecting the branch switch terminal of the completed distribution panel is attached.

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 to each of the main switchgear (1) mounted on the surface of the base 100 in the distribution box 110 and the plurality of guide grooves (A) and the guide through which the main busbar 11 passes at regular intervals as shown in FIG. In order to insulate the phase between the main busbars 11 passing through the grooves A, the lower part of the main switch 1 on the lower insulating plate 41 formed with the insulating film B separating the guide grooves A and the guide grooves A. And insert the terminal block 31 and the branch busbar 21 into the main busbar 11 into the guide grooves A, and then assemble the main busbar 11 and the terminal block at intervals between the branch switchgear 2. (31), the upper insulating cover 44 having an insulating film covering the branch busbar 21 is fastened to the surface of the base 100 to insulate the main branch busbars 11 and 21 from the outside and on both sides thereof. Attaching the upper terminal cover 50 which protects the terminal part of the branch switch 2 after tightening the base 4 with the branch switch 2 mounted thereon, and sealing it from the outside. The steel distribution panel busbar insulator is composed of insulating film blocks 41, 44, 46, 48, and 50 for performing interphase insulation.

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

In manufacturing the distribution board, first, the main switch 1 assembled with the pedestal 3 is installed on the surface of the base 100 of the distribution box 110, and then the lower insulation plate 41 having a plurality of guide grooves is provided with the lower insulation pedestal 46. Mount it as shown.

Thereafter, the main busbar 11 is seated on each side of the main switch 1 in the lower insulating plate 41 having the guide groove, and the terminal block 31 is inserted into the branch busbar 21 and the intermediate terminal 24. Assemble the wrench bolts 8 at intervals between phases of the branch switchgear 2.

Accordingly, the top and bottom upper and lower insulating cover 48 covering the exposed portion of the main busbar 11 under the upper insulating cover 44 and the main switchgear 1 are fixed to the surface of the base 110 and assembled to the main branch booth to the 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.

 After mounting the main busbar 11 and the terminal block 31 lacking in the guide groove, and then put the connecting terminal 14 between the existing main busbar 11 and the short main busbar 13 as shown in the seventh degree Terminal block 31 extends the main busbar length by tightening the terminal block 31, and the terminal block 31, the branch busbar 21, and the intermediate terminal 24 correspond to the interval between phases of the branch switchgear 2 and the quantity of the constant. 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)

An insulating film is formed between the guide grooves and the guide grooves for phase isolation between the plurality of guide grooves through which the main bus bars pass and the main bus bars passing through the guide grooves at predetermined intervals, respectively, connected to the main switchgear in the distribution box. After the assembly of the branch busbar and the middle terminal to the upper and lower branches of the branch switchgear, the lower insulation plate and upper cover fixed to the base surface are covered with an insulating cover for insulation of the main busbar and the branch busbar on the upper part. A pedestal for mounting a branch switch on both sides of the iron switchboard is characterized in that the insulation block is configured to cover the insulation cover on the upper and the exposed part of the branch switch mounted and to perform the insulation from the inside and outside; rescue  The main branch busbar fastening terminal according to claim 1, wherein when the main busbar and the branch busbar are fastened, the fastening part can be moved when the circuit is changed by assembling using a terminal block and an intermediate terminal without processing the fastening groove in the main busbar. Block structure  The main short circuit busbar connecting structure according to claim 2, wherein the main busbar and the short busbar are assembled using an intermediate terminal using two terminal blocks when a circuit is added.

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