KR20170029876A - Prefabricated block insulating bus bars used in the bending area and A insulation block assembly Using the same - Google Patents

Abstract

Disclosed are insulation blocks for a bent area and an insulation block assembly using the same. According to the present invention, the insulation blocks, which are assembled in upward, downward, leftward, and rightward directions so that a plurality of bus bars bent in two directions and installed in a distribution board are accommodated therein with the bus bars separated from one another, comprise: main plates in which a plurality of through holes, formed in upward and downward directions and configured such that the bus bars pass through the through holes, are formed in longitudinal directions of insulation blocks; separation walls which are formed between the through holes so that insulation spaces for separation and accommodation of the respective bus bars are formed through assembly of the insulation blocks in upward and downward directions; and coupling units which include upward coupling means disposed on top ends of the separation walls and configured to enable the insulation blocks to be assembled in upward and downward directions and side coupling means disposed on sides of at least one type of the main plates and the separation walls and configured to enable the insulation blocks to be assembled in leftward and rightward directions. According to the present invention, the separation walls are formed on the main plates in which the through holes are formed, and the coupling units having structures enabling the insulation blocks to be assembled in upward, downward, leftward, and rightward directions are formed, and thus an area at which the bus bars are bent in two directions and installed with the bus bars exposed to the outside can be desirably selected and the insulation blocks can be selectively assembled in upward, downward, leftward, and rightward directions. Accordingly, the insulation blocks can insulate the bus bars with the overall bus bars surrounded by the insulation blocks, thereby fundamentally preventing an electric shock attributable to direct contact with the bus bars from occurring during a live-wire operation of an operator.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an insulating block for a bending part,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulation block for a bending part and an insulation block assembly using the insulation block. More particularly, the present invention relates to an insulation block assembly for bending a bobbin The present invention relates to an insulation block for a bending part and an insulation block assembly using the insulation block, in which the risk of electric shock due to direct contact with the bus bar can be prevented from being able to be insulated such that the entire double bended bus bar can be surrounded.

The switchgear is a device that distributes and opens the power supplied from the power plant. It houses the main circuit breaker and monitoring control device in the closed enclosure to prevent the electric shock, so that it can monitor, protect, and operate the power system according to the requirements of the user do. These switchboards vary in the type and size of products according to the rating of the storage equipment, the safety protection class, and the applicable standard.

In the switchboard, a plurality of bus bars are installed to distribute the power supplied from the outside by connecting the respective circuit breakers to each other electrically. In order to reduce the power loss due to the transmission, the bus bars are made of pure copper It is generally manufactured by extrusion molding in a predetermined standard (IEC, JIS, KS).

Properly insulated work is necessary because the surface of the busbar, which is made of pure copper and has excellent electrical conductivity, is left exposed in the air as it presents a high voltage electric shock to workers who repair or inspect the switchboard.

However, in order to prevent the danger of electric shock accident, the insulation work for the installed bus bar should be performed after the power is cut off through the breaker installed in the switchboard. In the case of a large-scale factory equipped with many mechanical devices, There is a problem that an economical loss due to re-operation and a failure of a mechanical device are caused.

Also, in areas that are not adequately insulated, high voltage or unstable power supplied from the transformer may cause strong sparks. At this time, there is a risk that a strong impact is applied to the busbar, resulting in breakage or short-circuiting between busbars.

Therefore, conventionally, a method of covering a bus bar with a heat-shrinkable tube having an insulating function is mainly used for insulation of a bus bar. To accomplish this, a heat-shrinkable tube is inserted into each busbar and heat- I have. Since the insulation using the heat shrinkable tube is completely adhered to the bus bar, it is effective for electrical insulation, waterproofing and protection of devices. However, it has a disadvantage of relatively high cost and low productivity.

Among the prior arts for solving such problems, Korean Utility Model Registration No. 20-0442071, which is a Korean Registered Utility Model No. 20-0442071, is easy to assemble and construct, and the upper and lower fixing bars are detachable so as to support various sizes of the bus bars, The present invention discloses a technique for an insulator support for a bus bar in which a support bar is used as it is, and when a booster bar of another specification is connected, only an upper fixture and a lower fixture corresponding to the specification of the busbar are used.

The prior art described above has the advantage that it can be applied to bus bars of various specifications, but since insulation is provided only at both ends of the bus bar, insulation is not provided except for both ends of the bus bar, There is a problem that can not be solved.

Registered Utility Model No. 20-0442071 of Republic of Korea (Notice Date 2008.10.06)

It is an object of the present invention to provide a method and apparatus for selectively assembling up and down and right and left by arbitrarily setting a bending position of a bus bar which is installed in a double- And an insulating block assembly using the insulating block. The present invention also provides an insulation block for a bending part, which can be prevented from the risk of electric shock due to direct contact of the bus bar.

An object of the present invention is to provide an insulation block which is assembled in the up-and-down and left-right directions so as to be accommodated therein while isolating a plurality of bus bars which are installed to be folded in two in the switchboard, A main plate having a plurality of balls formed along its longitudinal direction; A partition wall formed between the communication holes so as to provide an insulation space for accommodating and accommodating a plurality of the busbars, respectively, through vertical assembly; And upper and lower engaging means provided on the upper end of the partition wall for vertically assembling and lateral engaging means provided on at least one side of the main plate and the partition wall for laterally assembling And an insulating block for the bending part.

The barrier ribs are alternately formed of a first barrier rib and a second barrier rib having different heights from each other. The first barrier ribs may be L-height and the second barrier ribs may be formed at a height of H-L.

The upper coupling means may include an upper coupling protrusion formed on one of upper surfaces of the first partition and the second partition and an upper coupling groove shaped to fit the upper coupling protrusion on the other upper end surface .

The side coupling means may include a side coupling protrusion formed on at least one side of the main plate and the partition wall, and a side coupling groove having a shape capable of fitting the side coupling protrusion on the other side.

The main frame may further include a cover member fitted into the engagement protrusion to open and close the communication hole on the outer side.

The main frame may further include a ring-shaped engaging member which is fitted into the engaging jaw so as to communicate with the communication hole from the outside.

Wherein the main plate, the partition wall portion, and the coupling portion are made of a synthetic resin containing at least one of Teflon, polychlorotrifluoroethylene, polyvinylidene fluoride, polyphenylene sulfide, polyaryl ether ketone, MC nylon, And the mixture can be injected into a single body.

Wherein the first and second diaphragms are spaced apart from each other by a distance of 65 mm and both ends of the main plate are provided with extended and fixed portions that are extended outward to fix the insulation block to one side of the distribution board, Additional portions may be formed.

An insulation block assembly for a bending part, wherein the insulation block for bending part according to any one of claims 1 to 6 is assembled in up, down, left and right directions.

According to the present invention, the main plate on which the communication hole is formed is provided with the partition wall and the coupling portion of the structure that can be assembled in the up-and-down and left-right directions. By thus arbitrarily determining the bending position of the double- So that it is possible to insulate the whole of the bus bar. Therefore, it is possible to prevent the risk of electric shock due to direct contact with the bus bar during the work of the operator, Block and an insulating block assembly using the same.

In addition, it is possible to mass-produce products by standard by making the insulation blocks of simple and easy-to-assemble structure according to various installation specifications related to the bus bar, and it is possible to perform isolation work on the bus bar easily and quickly It is possible to provide an insulating block for bending part and an insulating block assembly using the insulating block which can be safely performed.

In addition, since the upper coupling protrusion of the upper insulation block can be fitted and assembled as if the upper coupling groove and the side coupling groove of the lower insulation block are slid through the grooves communicating with each other, the accuracy and convenience of assembly are remarkably improved It is possible to provide an insulating block for bending part which can be improved and an insulating block assembly using the same.

1 is a perspective view of an insulation block for a bent part according to an embodiment of the present invention.
2 is a perspective view of an insulation block assembly formed by vertically assembling the insulation block for bending part of FIG.
3 is an assembled state diagram briefly illustrating a process of assembling the insulation block for bending part in Fig. 1 in the up, down, left, and right directions.
4 is a partial cross-sectional perspective view showing the convenience of assembling the insulation block for bending part in Fig. 1 in the vertical direction.
FIG. 5 is a state view showing a state where the insulation block for bending part of FIG. 1 is applied to a bent bus bar. FIG.
6A to 6C are views showing a state in which the insulation block for bending part in Fig. 1 is used in an electric distribution board.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, the well-known functions or constructions are not described in order to simplify the gist of the present invention.

FIG. 1 is a perspective view of an insulation block for bending part according to an embodiment of the present invention, FIG. 2 is a perspective view of an insulation block assembly formed by assembling insulation blocks for bending part in FIG. 1 in a vertical direction, And assembling the insulating block for bending part in the up, down, left, and right directions. And FIG. 4 is a partial cross-sectional perspective view for showing the convenience of assembling the insulation block for bending part of FIG. 1 in the vertical direction, and FIG. 5 is a view for explaining the state of use applied to the bent bus bar of FIG. And FIGS. 6A to 6C are views showing a state in which the insulation block for bending part in FIG. 1 is used in an electric distribution board.

The X, Y, and Z axes shown in the drawings are arbitrarily set for convenience of explanation. The X axis indicates the front (arrow side), the rear (opposing arrow) direction, the Y axis indicates the left and right directions, , And downward direction. In the following description, words indicating respective directions are based on this.

( For bending  Isolation block)

The insulation block 100 for bending part according to the present invention is used for a plurality of (three-phase three-wire or three-phase four-wire) bus bars B, bus bars, bus bars (In a direction facing each other) and left and right (in a direction parallel to each other), respectively.

The insulating block 100 for bending part includes a plurality of double-bended bus bars B assembled together to form an insulating block assembly 200 to isolate a plurality of bus bars B from each other, .

This is an improvement of the method of covering the booth bar B installed in the conventional wiring line, the switchboard, etc. by using a heat-shrinkable tube after cutting off the power supply. The insulation block 100 for bending part according to the present invention has an outer The bus bar B can be selectively assembled up and down and left and right by arbitrarily setting the bending position of the bus bar B bent in a double-folded form, As a result, the risk of electric shock due to direct contact with the bus bar (B) can be prevented at the time of work such as live work of the operator.

In addition, the insulation block 100 for bending part, which is simple and easy to assemble, is modularized in accordance with various installation standards related to the bus bar B, thereby enabling mass production of products for each standard, The insulation work on the bus bar (B) can be made easier, faster and safer without interruption.

As described above, the insulating block 100 according to the present invention is designed to prevent an electric shock accident caused by the contact with the bus bar B, and to perform an easy, quick and safe insulating work of the bus bar B. A main plate 110, a partition wall 120, a coupling part 130, and the like.

The main plate 110, the partition 120 and the coupling part 130 may be made of a synthetic resin or an engineering plastic having excellent insulation, heat resistance and rigidity. In particular, the main plate 110, the polytetrafluoroethylene (PTFE) (PCTFE), polyvinylidene fluoride (PVDF), polyphenylene sulfide (PPS), polyether ether ketone (PEEK), MC nylon (Mono) Cast Nylon) and the like are preferably injected into a single body.

A detailed description of each of the above-described configurations is as follows.

The main plate 110 is a component for cutting off contact between the double-curved busbars B and the operator, and is formed of a rectangular plate having a predetermined length. The length (long side) of the main plate 110 is determined by taking into account the distance between the phase of the booth bar B and the length of the bus bar B, .

That is, the main plate 110 according to the embodiment of the present invention is formed into a plate shape having a length of at least 19.5 cm (65 mm x 3) on the basis of three-phase three-line, considering that the distance between phases is 65 mm when the nominal voltage is 6600 V And in the case of three-phase four-wire, at least 26cm (65mm X 4) in length.

The main plate 110 is manufactured by subdividing the width (short side) so that proper insulation work can be smoothly performed through assembly of the busbars B folded in two directions in the left and right directions .

That is, for example, the width of the main plate 110 can be optionally determined in the range of 2 cm to 20 cm. However, the embodiment according to the present invention can secure the convenience and efficiency of the assembling work and the stability in the assembled state, and can be applied to the bus bar (B) A main plate 110 having a width of 6.5 cm is manufactured.

In addition, the thickness of the main plate 110 is formed to have a thickness proportional to the magnitude of the large current flowing through the bus bar B, thereby securing the insulating property. However, the embodiment of the present invention forms the main plate 110 with a thickness of about 10T.

The main plate 110 is provided with a communication hole 111 penetrating through the main plate 110 in a vertical direction so as to allow the bent bus bar B to pass through the main plate 110, And a plurality of them are formed.

Three communication holes 111 are formed along the longitudinal direction of the main plate 110 when used for the double-bend three-phase three-wire bus bar B, and four for the three-phase four- , And five or more may be used as needed. Here, the shape and size of the communication hole 111 may be any shape and size as long as the bent bus bar B can pass through in the vertical direction.

However, as shown in the drawing, the communication holes 111 according to the embodiment of the present invention are formed in a square shape with one side of 5 cm along the longitudinal direction of the main plate 110. It is assumed that a bus bar (B) having a size of about 10 mm x 40 mm is used in an electric distribution board (10) having a three-phase three-wire system installed at an interval of 65 mm. The configuration of the bus bar (B) It can be changed variously according to the standard.

A hooking step 111A may be formed around the communication hole 111 so as to provide a space in which the cover member 140 and the coupling member 150 to be described below can be inserted .

The cover member 140 is a component added to the main frame 110 to open and close the communication hole 111 from the outside of the main frame 110. The cover member 140 is fitted into the engagement protrusion 111A, And is formed to have a thickness that can be placed side by side with the upper surface or the upper surface of the main frame 110 after being fitted.

Means that the space formed between the outer circumference of the cover member 140 and the communication hole 111 and the engagement protrusion 111A does not completely coincide with each other and a frictional force is generated at the contact surfaces on both sides And means that the clearance is minimized to such an extent that it can not be easily released in a state in which a separate external force is not applied.

The cover member 140 is used for shielding the inner insulating space S by blocking the communication hole 111 in which the bent bus bar B does not pass through in the vertical direction among the plurality of communication holes 111 This is to further enhance the insulating function between the bus bars B 'and B adjacent to each other when the insulating block assemblies 200' and 200 for bending part are stacked as shown in FIG.

The joining member 150 is a component added to the main frame 110 so as to communicate with the communication hole 111 from the outside of the main frame 110. The joining member 150 has a ring shape Member. The engaging member 150 may be formed to have a thickness twice as large as the depth of the engaging jaw 111A (the length from the surface or upper surface of the main frame 110 to the engaging jaw 111A).

That is, as shown in FIG. 5, the coupling member 150 includes a lower main frame 110 'of the insulating block assembly 200' for bending part stacked on the upper part and an upper main part 110 'of the insulating block assembly 200 for bending part So that the frame 110 is communicated through the communication holes 111 'and 111 and at the same time, the main frames 110' and 110 are tightly fitted together.

In addition, the coupling member 150 also plays a role of securing insulation and shielding of connection portions vertically communicating with each other between upper and lower insulating block assemblies 200 'and 200 for bending part.

On the other hand, at both ends of the main plate 110, an extended fixing part 112 extending outwardly can be formed, and a fastening hole 112A through which the bolt can pass is formed. The insulation block 100 according to the present invention can be firmly fixed to one side of the switchgear 10, specifically, the inner frame of the switchgear by means of bolts tightening through the extension fixing part 112 (see FIG. 6).

When the insulating block 100 for bending part according to the present invention is assembled facing each other in the up and down direction to form the insulating block assembly 200 as shown in FIG. 2, the partition wall part 120 is formed between the plurality of bus bars B So that insulation or shielding between the phases is achieved.

The plurality of bus bars B are isolated and accommodated in the insulating block assembly 200 as the partition walls 120 form the insulating space S together with the main plate 110. As each of the bus bars B is isolated and accommodated, a strong spark between the adjacent bus bars B due to the unstable power supply can be prevented, and a strong shock to the bus bar B Breakage and short-circuiting between the bus bars B can be prevented.

The partition 120 according to the present invention is basically formed between the communication holes 111 formed along the longitudinal direction of the main plate 110. The spacing between the communication holes 111 is determined by the shape and size of the communication hole 111, The interval and number may vary depending on the number.

For example, if the three-phase three-wire type bus bars B are provided at intervals of 65 mm (three communicating holes 111), the partition wall 120 and three bus bars B are arranged in a wall Four, are formed at intervals of about 65 mm so that they can be isolated and shielded. In the case of a three-phase four-wire system (four communicating holes 111), the partition 120 separates four bus bars B into wall bodies, A dog is formed.

The height (vertical direction) of the partition 120 formed between the communication holes 111 formed along the longitudinal direction of the main plate 110 can be the same as the height, The first partition 121 and the second partition 122 are formed of the first partition 121 and the second partition 122 having different heights from each other like the first partition 121 and the second partition 122, Alternatively.

The reason for forming the barrier rib structure having different heights is that when the insulating block 100 is assembled facing up and down to form an insulating block assembly 200, the position where the assembly block is assembled becomes a zigzag shape up and down, So that the insulating block 100 can not be easily broken even if stress or shearing stress acts.

The first partition 121 according to an embodiment of the present invention has an L height and the second partition 122 has an HL height and is alternately formed along the longitudinal direction of the main plate 110, So that the bus bar B can be accommodated in the insulating space S in the insulating block 100.

Particularly, in the case where the bus bar B having a current capacity of about 800 A and having a size of 10 mm X 40 mm is installed at a distance of 65 mm in a three-phase three-wire system, the first and second diaphragms 121 and 121 122 are formed by alternately forming two insulating blocks 100 ', 100 for a bending part with a distance of 65 mm alternately (see FIG. 3).

In the case of a three-phase four-wire system, the first barrier ribs 121 and the second barrier ribs 122 are alternately arranged at a distance of 65 mm. The first barrier ribs 121 are three, the second ribbons 122 ) Of the insulating block 100 composed of two pieces of insulating block 100 'composed of two pieces of first partition 121' and two pieces of second partition 122 ' Phase booster bar (B), respectively.

The coupling part 130 is a component provided to enable the insulation block 100 according to the present invention to be assembled respectively in the up-and-down direction (direction facing each other) and the left-right direction (direction parallel to each other) And lateral coupling means 134 and the like.

The upper coupling means 132 is provided at the upper end of the partition 120 to be assembled in the vertical direction (facing each other) between the insulation blocks 100 for the bending portion. And an upper joining recess 132B formed on one upper end surface and an upper joining recess 132B having an upper joining protrusion 132A fitted to the other upper end surface.

That is, the upper coupling protrusion 132A and the upper coupling groove 132B are alternately formed on the upper end surface of the partition 120, so that when the insulation block 100 is assembled in the vertical direction, .

At this time, the upper coupling protrusions 132A may be formed along the upper end surface of the partition 120, but may also be formed in a plurality of protrusions spaced along the upper end surface, And a groove having a shape corresponding to the upper coupling protrusion 132A.

Here, the meaning of 'fit tightly' does not mean that the inner space of the upper coupling groove 132B and the outer shape of the upper coupling protrusion 132A are completely physically aligned, but frictional force is generated at the contact surfaces on both sides, Is meant to include that the play is minimized to the extent that it does not easily fall off in a state where it is not applied.

In the case where the barrier ribs 120 are formed of the first barrier ribs 121 and the second barrier ribs 122 having different heights from each other as in the embodiment of the present invention shown in FIGS. 1 to 4, The upper part of the upper part of the first partition 121 is formed with an upper coupling protrusion 132A formed on the upper surface of the first partition 121 and an upper coupling groove 132B formed on the upper surface of the second partition 122 to have an upper coupling protrusion 132A. ).

The lateral coupling means 134 is provided on at least one side of the main plate 110 and the partition 120 so as to assemble the insulation blocks 100 in the left and right directions 110 or one side of the partition 120 or one side of both the main plate 110 and the partition 120.

However, the lateral coupling means 134 according to the embodiment of the present invention includes the lateral coupling projections 134A formed along one side of the main plate 110 and the partition 120, And a side coupling groove 134B having a shape in which a pair of side plates 134A can be fitted.

That is, a lateral coupling protrusion 134A and a side coupling groove 134B are formed on both sides of the main plate 110 and the partition 120, respectively, so that the insulation block 100 is assembled in the left-right direction The coupling is made in such a way that it fits into each other.

At this time, due to the structure in which the lateral coupling projections 134A in the longitudinal direction and the lateral direction are fitted to the corresponding lateral coupling grooves 134B in the longitudinal direction and the transverse direction, respectively, 10, it is possible to firmly maintain the bonding force.

The lateral coupling protrusions 134A may be formed along a side surface of the main plate 110 and the partition 120, as well as a plurality of protrusions formed at predetermined intervals along one side of the main plate 110, The groove 134B is formed by a groove having a shape corresponding to this lateral coupling protrusion 134A.

1 to 4, the upper coupling groove 132B formed in the second partition 122, the main plate 110, the partition 120, the second partition 122, The side coupling grooves 134B are formed in the shape of a groove H communicating with each other.

This is because not only vertical up and down assembling between the upper and lower insulating blocks 100 'and 100 for bending part but also upper and lower mounting protrusions 132A' of the upper insulating block 100 ' The upper coupling groove 132B and the side coupling groove 134B of the block 100 are slidably inserted through the groove H communicating with each other so as to be assembled so that the accuracy and convenience of assembling can be dramatically reduced (See Fig. 4)

When the insulating block 100 for bending part is assembled in the vertical direction by the upper coupling means 132 having a protrusion and a closed-end groove structure, the insulating block 100 for the bending part is formed in the second partition 122 of the lower insulating block 100 Movement of the upper insulating block 100 'in the left direction (in the direction opposite to the Y-axis arrow) is suppressed by the upper connecting groove 132B and the upper connecting protrusion 132A' of the upper insulating block 100 ' (See Fig. 4)

The upper insulating block 100 'is formed by the upper coupling protrusion 132A formed in the first partition 121 of the lower insulation block 100 and the upper coupling groove 132B' of the upper insulation block 100 ' Is inhibited from moving in the rightward direction (Y-axis arrow direction) (see Fig. 3)

Therefore, the insulation block assembly 200 for bending part assembled in the vertical direction can be maintained in a firmly assembled state without being detached in the left-right direction.

( For bending  Insulation block assembly)

As shown in FIGS. 2 to 5, when the insulation block 100 for bending part according to the present invention is assembled up and down and left and right, the insulation block assembly 200 for a bending part is formed.

The insulating block assembly 200 for bending part is accommodated in a state in which a plurality of double-bended busbars B are isolated from each other so that the busbars B are connected to the busbars B The risk of electric shock due to direct contact can be prevented.

The insulating block 100 for the bending part constituting the insulating block assembly 200 for bending part is replaced with the above description and the process of assembling the insulating block assembly 200 for bending part Will be briefly described.

First, the insulation block 100 for bending part is positioned below the double-folded bus bar B so that the partition 120 of the insulation block 100 for bending part protrudes upward.

Next, the upper coupling protrusion 132A 'of the insulation block 100' for bending part located at the upper side for coupling in the vertical direction (direction facing each other) is connected to the upper coupling groove 132B of the insulation block 100, And the side joint groove 134B are slid to the left side through the groove H communicating with each other (refer to FIG. 4).

When the upper and lower assemblies are formed, the upper and lower coupling protrusions 132A and 132B, which are alternately formed on the upper surfaces of the first partition 121 and the second partition 122 of the insulating block 100 for the lower bend, , The insulating block 100 'for the upper bending part is restrained from moving all in the right and left directions (see FIGS. 3 and 4).

More specifically, the upper coupling protrusion 132A 'of the upper insulation block 100' is inserted into the upper coupling groove 132B of the lower bending portion insulating block 100, And the upper coupling protrusion 132A of the insulation block 100 for the lower bending portion is fitted into the upper coupling groove 132B 'of the upper bending insulation block 100' to be assembled in the right direction Movement in the arrow direction) is suppressed.

Therefore, when the insulation block assembly 200 for bending part is assembled in the vertical direction, the insulation block 100 for each bending block can be prevented from deviating in the left-right direction, and the assembled state can be firmly maintained.

Next, the lateral coupling protrusions 134A of the insulation block 100 for the bending portion located on the right side in the lateral coupling groove 134B of the insulation block 100 for bending portion located on the left side in the left-right direction Assemble to fit snugly (see Figures 3 and 4)

Repeating the lateral joining in this manner completes the insulation block assembly 200 for the lower bent portion as shown in Fig.

Next, the coupling member 150 is fitted into the communication hole 111 through which the upper end of the doubly bent bus bar B passes, and the cover member 140 is attached to the other communication hole 111 So that insulation and shielding between the doubly bent bus bars B are ensured.

At this time, the position (selecting three out of nine) of the communication holes 111 through which the upper end of the doubly bent bus bar B is passed may be varied according to the needs of the operator in consideration of the structure of the cabinet 10 The convenience of the insulation work related to the doubly bent bus bar B can be greatly increased.

Next, in order to assemble the insulating block assembly 200 'for the upper bending portion, which houses therein the linear bus bar B' perpendicular to the longitudinal direction of the doubly bent bus bar B, The insulating block 100 'for bending part is assembled according to the above-described procedure.

However, as shown in FIG. 5, the surface or upper surface of the insulating block assembly 200 'for the upper bending portion is covered with the cover member 140 in all of the communication holes 111' for insulation from the outside.

The bottom surface of the insulating block assembly 200 'for the upper bending part is configured such that the previously engaged coupling member 150 is inserted into the communication hole 111' through which the upper end of the doubly bent bus bar B passes, And the cover member 140 is fitted to the other communication hole 111 '.

Finally, when the insulating block assemblies 200 'and 200 for upper and lower bent portions are inserted through the coupling member 150, the double-curved busbars B and the linear busbars B' .

By forming the insulating block assemblies 200 'and 200 for the upper and lower bent portions, the double-folded bus bars B through which a large current flows can be completely insulated.

6 (a), 6 (b) and 6 (c) show the state of the insulation block assembly 200 for bending part assembled along the path in which the three-phase bus bar B is installed in the inside of the switchboard 10, ). As shown in the drawing, the double-curved busbars B are reliably insulated without being exposed to the outside at all. As a result, an electric shock accident that may occur during operation inside the switchboard 10 can be prevented at the source.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is obvious to those who have. Accordingly, such modifications or variations should not be individually understood from the technical spirit and viewpoint of the present invention, and modified embodiments should be included in the claims of the present invention.

10: Switchboard
100: Insulation block for bending part according to the present invention
110: main plate 111: communication hole
112: extended fixing part 120: partition wall part
121: first partition 122: second partition
130: engaging portion 132: upper engaging means
132A: Upper coupling projection 132B: Upper coupling groove
134: lateral coupling means 134A: lateral coupling projection
134B: lateral coupling groove 140: cover member
150:
200: Insulation block assembly for bending part

Claims (9)

An insulating block which is assembled in an up, down, left, and right direction so as to be accommodated therein while isolating a plurality of bus bars that are installed in a double-
A main plate having a plurality of communication holes formed in a vertical direction and passing through the bent bus bars;
A partition wall formed between the communication holes so as to provide an insulation space for accommodating and accommodating a plurality of the busbars, respectively, through vertical assembly; And
And an engaging portion provided on at least one of the main plate and the partition wall and configured to laterally assemble the main plate and the coupling portion. The insulating block for the bending part. The method according to claim 1,
Wherein,
Wherein the first and second barrier ribs are alternately formed with the first and second barrier ribs having different heights from each other. The first barrier rib has an L height and the second barrier rib has an HL height. 3. The method of claim 2,
Wherein the upper coupling means comprises:
And an upper coupling groove formed on one of upper surfaces of the first partition and the second partition and an upper coupling groove having a shape capable of fitting the upper coupling protrusion on the other upper end surface. . The method of claim 3,
Wherein the lateral coupling means comprises:
And a side coupling groove formed on at least one side of the main plate and the partition wall and a side coupling groove having a shape capable of fitting the side coupling protrusion on the other side of the other coupling groove. 5. The method of claim 4,
Wherein a stopping step is formed on the periphery of the communication hole,
The main frame includes:
And a cover member which is fitted into the engagement protrusion to open and close the communication hole on the outer side. 6. The method of claim 5,
The main frame includes:
Further comprising a ring-shaped engaging member fitted into the engaging jaw so as to be in communication with the communicating hole from the outside. 7. The method according to any one of claims 1 to 6,
Wherein the main plate, the partition wall portion,
A synthetic resin containing at least one of polytetrafluoroethylene, polytetrafluoroethylene, polytetrafluoroethylene, Teflon, polychlorotrifluoroethylene, polyvinylidene fluoride, polyphenylene sulfide, polyaryl ether ketone, MC nylon and acrylic is mixed and molded Insulation block for bending part. 7. The method according to any one of claims 2 to 6,
Wherein the first barrier rib and the second barrier rib are formed on the substrate,
Two spacers are formed, the spacing distance therebetween is 65 mm,
At both ends of the main plate,
Further comprising an extended fastening portion extending outwardly to fix the insulating block to one side of the power distribution board. An insulation block assembly for a bending part according to any one of claims 1 to 6, wherein the insulation block for bending part is assembled in the up, down, left and right directions.

Images