KR101263618B1 - Bus duct improved water-proof performance of joint part - Google Patents

Abstract

PURPOSE: A bus duct for improving the water-proof performance of a joint part is provided to improve the sealing structure of a bending part by using a connection part consisting of four piece structures. CONSTITUTION: A connection cover includes four pieces consisting of an upper cover(331), a lower cover(332), a left cover(333), and a right cover(334). The connection cover includes four upper/lower gaskets(335a-335d) and two left/right gaskets. A first upper gasket is combined with the lower part of the upper cover and an upper duct plate(250). A first lower gasket is combined with the upper part of a lower cover and a lower duct plate. A left gasket(335e) is combined with the left part of the left cover and an end block(260). A right gasket(335f) is combined with the left part of the right cover and the end block.

Description

BUS DUCT IMPROVED WATER-PROOF PERFORMANCE OF JOINT PART}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a booth duct in which the watertight property of the connection part is improved, and more particularly, to a booth duct having improved watertight property through the improvement of the contact part cover and the contact surface of the connection part.

Recently, as the power demand of buildings such as high-rise buildings, apartments, and large factories soared, the adoption of a wiring method by booth ducts in the form of booths is becoming common.

The booth duct has a bus bar of conductors that transmits power inside and a housing that functions as a ground while protecting the outside, and each bus duct is connected to each other by a kit of conductors, and the external ground is grounded. The connection is made with each other.

The part connected by the joint kit is covered by an outer cover for the purpose of protecting and sealing the joint kit.

The structure of this outer cover is shown in FIG.

Figure 1 shows the shape of the connection cover of the conventional bus duct joint kit portion.

As shown in FIG. 1, the bus duct 110 on one side and the bus duct on the other side are connected to each other via a joint kit (not shown), and the outside is connected to the duct side plate 120. Are connected to each other by

After the conductor and the ground portion are connected to each other, the connection is sealed and protected by the connection cover 130.

The connection part cover 130 is made of a metal material, and a gasket (not shown) is inserted therein to seal.

The conventional connection part cover 130 is composed of a first connection part cover 130a and a second connection part cover 130b and are coupled through a combination thereof and a gasket therein to protect and seal the connection part.

However, the conventional connection cover 130 is composed of a two-piece (Piece) type has a problem that the water-tightness characteristics are significantly reduced. In particular, there is a problem that the watertightness of the bent portion 140 is very weak when the gasket operation.

In addition, the gasket faces 150 and 160, which are the surfaces to which the gaskets are in contact, are made of flat surfaces, thereby causing problems in the implementation of the complete sealing through the gasket. Bolting assembly of gasket and gasket faces 150 and 160 with high torque can damage parts as much as it is, and bolting assembly is performed at a suitable pressure. As a result, the sealing function deteriorates with time.

SUMMARY OF THE INVENTION An object of the present invention for solving the above-mentioned problems is to provide a booth duct having an improved structure of a connection cover that can maintain high sealing characteristics.

In addition, to improve the structure of the connection cover, while forming a concave-convex surface of the gasket contact to provide a booth duct to further improve the sealing characteristics.

The bus duct with improved watertightness of the connection part according to the present invention for solving the above-mentioned problems includes a connection between a bus bar extending from a plurality of conductors extending in the longitudinal direction and surrounding the bus bar with a bus bar adjacent to the bus bar. A joint kit, and a joint cover which is an outer protective cover of a joint connected by the joint kit, wherein the joint cover is composed of four pieces of an upper cover, a lower cover, a left cover, and a right cover. It is characterized in that the gasket is included and coupled inside.

In addition, the bus duct with improved watertightness of the connection part according to the present invention includes a joint kit for connecting a plurality of busbars, which are conductors, extending in the longitudinal direction and enclosing the busbars, the busbars adjacent to the busbars; A joint cover, which is an outer protective cover of a joint connected by the joint kit, wherein the joint cover is composed of four pieces of an upper cover, a lower cover, a left cover, and a right cover, and both end surfaces of the upper cover. First and second upper gaskets assembled through mediation, first and second lower gaskets assembled on both end surfaces of the lower cover, left gaskets assembled with the left cover, and assembled with the right cover It comprises a gasket made of a right gasket.

In addition, the bus duct with improved watertightness of the connection part according to the present invention includes a joint kit for connecting a plurality of busbars, which are conductors, extending in the longitudinal direction and enclosing the busbars, the busbars adjacent to the busbars; A joint cover, which is an outer protective cover of a joint connected by the joint kit, wherein the joint cover is composed of four pieces of an upper cover, a lower cover, a left cover, and a right cover, and both end surfaces of the upper cover. First and second upper gaskets each having a 'c' shape assembled thereon, first and second lower gaskets having a 'c' shape assembled on both ends of the lower cover, and the left side A left gasket assembled with a cover and formed in the same shape as the left cover, and assembled with the right cover, the same as the shape of the right cover It characterized in that it comprises a gasket made of a right gasket formed in one shape.

Here, the left and right both ends of the upper and lower covers are bent in the upward or downward direction, and the upper and lower ends of the left and right covers are bent into the connection part in the perpendicular direction and assembled together.

Here, the upper duct and the lower duct are combined to overlap each other, and both ends of the upper duct and the lower duct are bent at right angles to form a wing, and end-blocks are fixed to both ends of the wing, The wing portion and the joint housing of the joint kit may be connected by a duct side plate to electrically ground, and the duct side plate and the wing portion of the duct portion may be face-to-face connected to each other.

Here, the outer surface of the end-block is face-to-face contact with the left and right end surfaces of the left and right gaskets and the outer surface of the end-block in surface contact is formed with an uneven portion, and each of the outer surfaces of the duct side plate is the first and the first 2 The outer surface of the duct side plate which is in surface contact with the upper gasket and the first and second lower gaskets and is in surface contact is excellent in terms of the sealing effect.

According to the above-described configuration of the present invention, the connection cover is improved to a four-piece structure to eliminate the bent portion, thereby improving the sealing structure of the bent portion, and forming an unevenness on the gasket surface to which the gasket touches, It becomes possible to provide the booth duct which further improved the sealing characteristic of the contact part.

1 is a structural diagram of a conventional bus duct and a connection cover.
2 is a perspective view of the structure of the bus duct according to the present invention.
3 is a connection cover assembly structure of the bus duct according to the present invention.
4 is an exploded structure of a connection cover of a bus duct according to the present invention.
5 is a perspective view of an end-block for a bus duct according to the present invention.
6 is a perspective view of a duct side plate for a bus duct according to the present invention.
FIG. 7 is a cross-sectional view taken along line AA of FIG. 3 and illustrates a cross-sectional view of a connection cover.

Hereinafter, with reference to the accompanying drawings will be described a booth duct structure and the effect of the improved watertight properties of the connection portion according to the present invention.

2 is a perspective view of the structure of the bus duct according to the present invention.

As shown in FIG. 2, the bus duct 200 of the present invention has a plurality of bus bars 240 serving as conductors therein, and duct portions 210 and 220 extending in the longitudinal direction, and adjacent duct portions. It comprises a joint kit 230 for the connection between the busbars 240 of the 210, 220.

In the ducts 210 and 220, the upper ducts 211 and 221 and the lower ducts 212 and 222 are in contact with each other, one of the male ducts and the other of the female ducts, and the busbars 240 may be inserted. It is formed in the form of a housing while forming a space to form and form the wings on the left and right.

Duct side plates 250 for connection with the joint kit 230 are formed at the left and right ends of the duct portions 210 and 220, and the busbars 240 outside the duct portions 210 and 220 for connection between the conductors. The distal portion is exposed.

Both ends of the bus bar 240 are connected to the inner conductor plate between the insulation plates 231 provided in the joint kit 230 so that the bus bars 240 at both ends are electrically connected to each other. A conductor plate (not shown) is formed inside, and the conductor plates have an arrangement in which insulation distances are maintained between each other by an insulation spacer (not shown).

One end of the duct side plate 250 is connected to the joint housing 232 outside the joint kit 230, the inside of the other end is connected to the end-block 260, and the outside of the other end is the upper duct 211 and 221 and the lower duct. It is connected to the outside of the wings 211a, 212a, 221a, 222a of (212, 222).

Both ends of the upper and lower ducts 211 and 221 and the lower ducts 212 and 222 are bent in an axial direction to form the wing portions 211a, 212a, 221a and 222a, and end portions of a square block form between the upper and lower wing portions. Block 260 is formed.

The end-block 260 is in close contact with the outer circumferential surfaces of the upper ducts 211 and 221 and the lower ducts 212 and 222 to increase the adhesion to the surface and increase the contact area to increase the waterproof performance and the mechanical strength of the duct. Can be.

After the duct 210 and the duct 220 are connected to each other by the joint kit 230, the conductor and the outside are connected to each other, and the outside is covered with a connection cover for protecting the connection and sealing the inside. The structure is shown in FIG.

3 is a connection cover assembly structure of the bus duct according to the present invention, Figure 4 is an exploded structure of the connection cover of the bus duct according to the present invention.

Referring to FIG. 3, the booth duct 300 according to the present invention has the booth cover 200 of the booth duct 200 illustrated in FIG. 2, that is, the duct part 310 and the duct part 320 assembled therein. ) Are combined.

3, an exploded perspective view of a connection cover 330 according to the present invention is shown.

The connection part cover 330 is composed of four pieces of upper cover 331, lower cover 332, left cover 333, and right cover 334, and four upper and lower gaskets 335a therein. To 335d) and two left and right gaskets 335e and 335f.

The first upper gasket 335a is coupled to abut the one lower surface of the upper cover 331 and one surface of the upper duct side plate 250, and the second upper gasket 335b is connected to the other lower surface of the upper cover 331. In contact with one surface of the duct side plate 250 of the upper side is coupled.

Similarly, the first lower gasket 335c is coupled to abut the upper surface of one side of the lower cover 332 and one surface of the lower duct side plate 250, and the second lower gasket 335d is the other side of the lower cover 332. The upper surface and the one side of the duct side plate 250 is in contact with each other.

The left gasket 335e is coupled to abut the left side of the left cover 333 and one surface of the end-block 260, and is coupled to the right side of the left cover 333 and one surface of the end-block 260. The right gasket 335f is coupled to abut the left side of the right cover 334 and one surface of the end-block 260, and is coupled to the right side of the right cover 334 and the one surface of the end-block 260.

The first and second upper gaskets 335a and 335b and the first and second lower gaskets 335c and 335d have a substantially 'c' shape, and the left and right gaskets 335e and 335f have left and right covers 333 and 334. It is almost the same shape as).

In addition, both ends of the upper cover 331 is formed with an upward bent portion 331a bent upward, both ends of the lower cover 332 is also formed with a downward bent portion 332a bent downward, the left and right cover 333 334, the right and left bent portions 333a, 334a bent inwardly are formed at both ends.

The bending direction of the upward bending portion 331a and the downward bending portion 332a and the rightward bending portion 333a and the leftward bending portion 334a are perpendicular to each other, and the bending surfaces of the upward and downward bending portions 331a and 332a are perpendicular to each other. And end faces of the left and right gaskets 335e and 335f are joined between the inner surfaces of the right and left covers 333 and 334.

The connection cover 330 of such a structure can solve the sealing problem in the curved part without the curved surface compared with the conventional two-piece connection cover.

In addition, the structure of one surface of the duct side plate 250 and one surface of the end-block 260 in contact with the upper and lower gaskets 335a to 335d and the left and right gaskets 335e and 335f is improved to have a concave-convex structure in a flat state. This will be described in more detail with reference to FIGS. 5 and 6.

5 is a perspective view of a duct side plate for a bus duct according to the present invention.

The duct side plate 250 shown in FIG. 5 is made of a conductive metal material such as aluminum that can conduct electricity and serves as a ground terminal.

Since the duct side plate 250 is related to the waterproof performance, it is manufactured by the extrusion process to maintain the dimensional accuracy and the productivity efficiency, and to perform hardening heat treatment to increase the strength while maintaining elasticity, and to the surface during extrusion and heat treatment The surface treatment can be prevented from dropping the surface resistance in order to remove the generated natural oxide film.

The duct side plate 250 extends from the joint kit connection part 251 coupled to the joint housing 232 of the joint kit 230 and the joint kit connection part 251 to reinforce elasticity and strength and to fit the connection height of both ends. An inclined portion 252 having a predetermined inclination angle, a sealing flat portion 253 extending from the inclined portion 252 to be in contact with one surface of an external connection cover 330 to perform a sealing function; An end block connecting portion 254 formed vertically from both ends of the sealing flat portion 253 and bolted to the end-block 250, and extending from the sealing flat portion 253 to upper ducts 211 and 221. And a duct connection part 255 connected to the wing parts 211a, 212a, 221a, and 222a of the lower ducts 212 and 222 to perform an external ground connection function.

The sealing flat portion 253 is a surface in contact with the connection cover 330, and more specifically, the upper gaskets 335a and 335b and the lower gasket between the upper and lower ends of the upper cover 331 and 332 of the connection cover 330. Each of them is assembled through 335c and 335d to have a sealing structure.

The sealing flat portion 253 has an uneven portion 256 to enhance the sealing function characteristics.

6 is a perspective view of an end-block for a bus duct according to the present invention.

The end-block 260 shown in FIG. 6 is erected vertically between the wing portions 211a, 212a, 221a, and 222a to increase the mechanical coupling force of the upper and lower ducts 211, 212, 221, and 222. The bolt is coupled to the duct connecting portion 255 of the duct side plate 250 of the upper and lower ends, and bolted to the side of the upper and lower ducts 211, 212, 221, 222 through the bolt hole 263.

The outer surface of the end-block 260 is in contact with one surface of the left and right covers 333 and 334, and in detail, the left and right gaskets 335e and 335f are disposed between the left and right end surfaces of the left and right covers 333 and 334. As a mediated surface, the surface forms the uneven portion 261 in order to reinforce the sealing property similarly to the uneven portion 256 of the duct side plate 260.

As described above, the connection cover of the present invention is composed of a four-piece cover assembly to solve the sealing problem of the conventional bent portion, as well as the duct side plate 250 and the end-contacting the upper and lower gaskets and the left and right gaskets Concave-convex portions 251 and 261 are formed on the surface of the block 260 to reinforce the sealing function together with the four-piece connection cover structure.

FIG. 7 is a cross-sectional view taken along line A-A of FIG. 3, illustrating a cross section of the connection cover.

As shown in the cross-sectional view, the upper end of one side (left side in the drawing) of the connection part cover is assembled with the left cover 333 and the left gasket 335e and the upper cover 331 by bolts, etc. 333, the left gasket 335e and the lower cover 332 are assembled to each other by bolts or the like.

More specifically, the upper end of one side surface (left side in the drawing) of the connection portion cover is the right bent portion 333a of the left cover 333, the left gasket 335e, and the upward bent portion 331a of the upper cover 331. Each other is assembled by a bolt or the like, and the lower end of the right bent portion 333a of the left cover 333 and the left gasket 335e and the lower bent portion 332a of the lower cover 332 are assembled to each other by bolts or the like.

That is, it becomes a structure that can be completely sealed in the corner portion (A) of the joint cover 330 of the joint kit can solve the sealing problem in the conventional bent portion.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, As will be understood by those skilled in the art. Therefore, it should be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than the foregoing description, It is intended that all changes and modifications derived from the equivalent concept be included within the scope of the present invention.

200, 300: Booth duct 210, 220: Duct part
211, 221: upper duct 212, 222: lower duct
211a, 212a, 221a, 222a: wing 230: joint kit
231: insulation plate 232: joint housing
240: busbar 240a: bar-end
250: duct side plate 260: end-block
251: joint kit connecting portion 252: inclined portion
253: sealing flat portion 254: end block connection
255: duct connection 256, 261: uneven portion
330: connection cover 331: upper cover
331a: upward bend 332a: downward bend
333a: rightward bent portion 334a: leftward bent portion
332: lower cover 333: left cover
334: Right cover 335a: First upper gasket
335b: second upper gasket 335c: first lower gasket
335d: Second lower gasket 335e: Left gasket
335f: Right Gasket

Claims (6)

A plurality of busbars which are conductors are formed extending in the longitudinal direction and surrounding the busbars;
Joint kit for connecting between busbars of adjacent ducts,
A connecting part cover which is an outer protective cover of the connecting part connected by said joint kit,
The connection part cover is made of four pieces (Piece) of the upper cover, the lower cover, the left cover and the right cover, the inside of the booth duct with improved watertightness characteristics of the connection portion, the gasket is included. A plurality of busbars which are conductors are formed extending in the longitudinal direction and surrounding the busbars;
Joint kit for connecting between busbars of adjacent ducts,
A connecting part cover which is an outer protective cover of the connecting part connected by said joint kit,
The connection cover is composed of four pieces of upper cover, lower cover, left cover and right cover,
First and second upper gaskets assembled on both ends of the upper cover, first and second lower gaskets assembled on both ends of the lower cover, and left gaskets assembled on the left cover; Booth duct is improved watertight characteristics of the connection including a gasket consisting of a right gasket assembled with the right cover. A plurality of busbars extending in the longitudinal direction of the conductor and surrounding the busbars;
Joint kit for connecting between busbars of adjacent ducts,
A connecting part cover which is an outer protective cover of the connecting part connected by said joint kit,
The connection cover is composed of four pieces of upper cover, lower cover, left cover and right cover,
First and second upper gaskets each having a 'c' shape, which is assembled to both ends of the upper cover, and first and second portions having a 'c' shape, which are assembled to both ends of the lower cover. And a gasket comprising a lower gasket, a left gasket assembled with the left cover and formed in the same shape as the left cover, and a right gasket assembled with the right cover and formed in the same shape as the right cover. Booth duct with improved watertightness 4. The method according to any one of claims 1 to 3,
Left and right ends of the upper and lower covers are bent in an upward or downward direction,
Both upper and lower ends of the left and right covers are bent inward to the inside of the connecting portion in a perpendicular direction to be assembled with each other. 4. The method according to any one of claims 1 to 3,
The upper duct and the lower duct are combined to overlap each other, and both ends of the upper duct and the lower duct are bent at right angles to form a wing, and end-blocks are fixed to both ends of the wing,
The wing part of the duct part and the joint housing of the joint kit are electrically connected to each other by a duct side plate, and the duct side plate and the wing part of the duct part have face-to-face contact with each other. duct. The method of claim 5,
The outer surface of the end-block is formed with irregularities,
The outer surface of the duct side plate is a booth duct is improved watertight characteristics of the connection portion, the uneven portion is formed.

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