JP2007274814A - Bus duct - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate maintenance even if a housing in one of bus ducts constituting a bus duct system is flooded. <P>SOLUTION: The bus duct 10 is provided with a plurality of insulating conductors 12A to 12C, the housing 11 storing the insulating conductors 12A to 12C and a plurality of separation members 13 which separate a space formed between the housing 11 and the insulating conductors 12A to 12C or a space formed between one insulating conductor (insulating conductor 12A, for example) and the other insulating conductor (insulating conductor 12B, for example) and have watertightness and absorptivity. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a bus duct in which an electric conductor is housed, and particularly relates to a bus duct excellent in measures against flooding.

In general, a bus duct is a housing in which a plurality of insulated conductors configured by covering an electric conductor with an insulating material are housed and held in a housing. Compared to a wiring system that bundles and wires multiple cables, this bus duct has extremely superior functions for preventing fires and preventing leakage magnetic flux, so it can be used as a main power supply line for factory facilities and buildings. Widely used (see, for example, Patent Document 1).
JP 2002-281648 A

  However, the housing of the above conventional bus duct is not watertight, and when it is immersed in the housing, water can flow back and forth in the space between the housing and the insulated conductor or in the space between the insulated conductors. When a bus duct system is constructed by connecting a plurality of bus ducts, once water is immersed in one of the bus ducts, the invaded water is in the space between the housing and the insulated conductors or between the insulated conductors. There was a problem that a large number of bus ducts had to be exchanged in spite of the inundation of one bus duct, which propagated through the space between them and propagated to adjacent bus ducts.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a bus duct that can be easily maintained even if only one of the bus ducts needs to be replaced even if the housing of any of the bus ducts constituting the bus duct system is submerged.

  In order to solve the above-described problems, the inventor has conducted extensive research. As a result, when the space in the housing formed between the plurality of strip-shaped insulated conductors and the housing for housing the insulated conductors in a watertight manner is separated into a plurality of spaces by a plurality of separating members, Even if the bus duct is flooded, it is possible to limit the flooding to specific parts of the bus duct. In the bus duct system formed by assembling multiple bus ducts, it is easy to maintain by replacing only the bus duct where the flooding occurred. It has been found that a bus duct and a bus duct system capable of providing The present invention has been made based on the research results described above.

The first aspect of the bus duct of the present invention is a plurality of strip-shaped insulated conductors,
It is a bus duct provided with a housing for housing the insulated conductor in a watertight manner and a plurality of separation members for separating the space in the housing into a plurality of spaces in a watertight manner.

  According to a second aspect of the bus duct of the present invention, the separation member includes a plurality of spaces formed between the housing and the insulated conductor, and a plurality of spaces formed between the plurality of insulated conductors. It is a bus duct that separates into a space.

According to a third aspect of the bus duct of the present invention, the insulated conductor is an electric conductor,
An insulator provided on a peripheral surface of the electrical conductor for electrically separating from the other electrical conductor;
A bus duct characterized by comprising:

  A fourth aspect of the bus duct according to the present invention is a bus duct characterized in that the separating member is made of tar, putty, a water-absorbing nonwoven fabric, or a room temperature curable resin.

  A fifth aspect of the bus duct according to the present invention is a bus duct in which the separating members are arranged at equal intervals.

  A sixth aspect of the bus duct according to the present invention is a bus duct in which the separating members are arranged at unequal intervals.

  A seventh aspect of the bus duct according to the present invention is a bus duct in which the separating member is made of the same member.

  An eighth aspect of the bus duct according to the present invention is a bus duct in which the separation member is made of different types of members or members of the same material having different dimensions.

A first aspect of the bus duct system of the present invention includes a plurality of strip-shaped insulated conductors,
A bus duct system in which a plurality of bus ducts including a housing for watertightly storing the insulated conductor and a plurality of separation members for watertightly separating a space in the housing into a plurality of spaces are connected and arranged.

  A second aspect of the bus duct system according to the present invention is a bus duct system in which the bus duct is formed by a combination of a bus duct having a bent portion and a straight bus duct having no bent portion.

  According to the bus duct of the present invention, the separating member separates the space formed between the housing and the insulated conductor or the space formed between one insulated conductor and the other insulated conductor into a plurality of spaces. Even if the water is immersed in any of the plurality of spaces separated by the separating member, water does not enter the other spaces among the plurality of spaces, and even when the bus duct system is constructed with a plurality of bus ducts. It does not affect other bus ducts other than the flooded bus duct.

  Next, preferred embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a plan view of a bus duct.

  2 is a cross-sectional view taken along the line AA in FIG.

  A first aspect of the bus duct according to the present invention includes a plurality of strip-shaped insulated conductors, a housing for housing the insulated conductors in a watertight manner, and a plurality of separation members for watertightly separating the spaces in the housing into a plurality of spaces. Bus duct. The separation member described above is a bus duct that separates a space formed between the housing and the insulated conductor and a space formed between the plurality of insulated conductors into a plurality of spaces. The insulated conductor mentioned above is provided with the electrical conductor and the insulator provided in the surrounding surface of an electrical conductor, and electrically isolate | separating from another electrical conductor.

  Broadly speaking, the bus duct 10 is formed between a housing 11, a plurality of (three in FIG. 2) insulated conductors 12A to 12C housed in the housing 11, and the housing 11 and the insulated conductors 12A to 12C. A plurality of separating members 13 for separating a space formed between one insulating conductor (for example, insulating conductor 12A) and another insulating conductor (insulating conductor 12B) into a plurality of spaces, and another bus duct. Connecting portions 14A and 14B for electrical connection.

  In FIG. 1, for ease of explanation, the separating member 13 is indicated by a broken line, but actually, the separating member 13 is housed in the housing 11 in close contact with the housing 11.

  Here, the housing 11 opposes a pair of housing pieces 17A and 17B each having a concave portion 15 in which the insulated conductors 12A to 12C are accommodated and flanges 16 provided on both sides of the opening end of the concave portion 15. Are joined by a coupling member 18 to house and hold the insulated conductors 12A to 12C.

  The insulated conductors 12 </ b> A to 12 </ b> C have the same configuration, and include an electrical conductor 21 and an insulator 22 that is provided on the peripheral surface of the electrical conductor 21 and is electrically separated from the other electrical conductors 21. I have. For this reason, for example, a plurality of systems of electric power or electric signals can be supplied.

  As the separating member 13, a material having water tightness or water absorption is used, and for example, tar, putty, a water absorbent nonwoven fabric, a room temperature curable resin, or the like can be used.

  3 is a cross-sectional view taken along the line BB in FIG.

  As shown in FIG. 3, each separating member 13 is provided over the entire outer periphery of each insulated conductor 12A to 12C with a predetermined width with respect to the longitudinal direction of the insulated conductor, and at a predetermined interval in the longitudinal direction of the insulated conductor. A plurality of openings (five places in FIG. 3) are provided, and a space formed between the housing 11 and the insulated conductors 12A to 12C when the insulated conductors 12A to 12C are bundled and stored in the housing 11. For example, the space 25 formed between the housing piece 17A and the insulated conductor 12A is separated into a plurality of spaces 25A to 25F. The intervals at which the separation members 13 are provided may be provided at regular intervals or at irregular intervals.

  Therefore, for example, even if the water is immersed in the space 25B, the invading water can be prevented or suppressed from entering the adjacent space 25A or the space 25C.

  In addition, the separating member 13 converts a space formed between one insulated conductor and another insulated conductor, for example, a space 26 formed between the insulated conductor 12B and the insulated conductor 12C into a plurality of spaces 26A to 26F. It is separated.

  Therefore, for example, even when the water is immersed in the space 26C, it is possible to prevent or suppress the intruded water from entering the adjacent space 26B or the space 26D.

  As a result, it is possible to prevent or suppress the influence of water that has entered one of the spaces 25A to 25F and 26A to 26F from entering another bus duct disposed adjacent thereto.

FIG. 4 is an explanatory diagram of the bus duct system.
One aspect of the bus duct system according to the present invention includes a plurality of strip-shaped insulated conductors, a housing that houses the insulated conductors in a watertight manner, and a plurality of separation members that separate the spaces in the housing into a plurality of spaces in a watertight manner. This is a bus duct system in which a plurality of bus ducts are connected and arranged. The bus duct is formed by a combination of a bus duct having a bent portion and a straight bus duct having no bent portion.

  As shown in FIG. 4, the bus duct system 30 includes twelve bus ducts 31 </ b> A to 31 </ b> L having the same configuration as that of the bus duct 10 having the above-described structure.

  The bus duct 31A and the bus duct 31L located at both ends are terminal bus ducts provided with connection terminals to which external wiring can be connected.

  The bus ducts 31B, 31E, 31F, 31I, and 31K are straight type bus ducts that do not have a bent portion, and the bus ducts 31D, 31G, 31H, and 31J are L-shaped bus ducts that have a bent portion.

  In the bus duct system 30 configured as described above, for example, when water is immersed in the space 35 among the plurality of spaces separated by the separation member described above in the bus duct 31E, the intruded water stays in the space 35 and is adjacent to the space 35. It does not reach 36,37.

  As a result, the entire bus duct system 30 can be easily restored by replacing only the submerged bus duct 31E, and the maintenance labor can be greatly reduced.

  In other words, by preventing the inundation of a part of the area (space separated by the separating member) from propagating to other areas, it is possible to prevent all the units (bus ducts) from becoming unusable due to the part of the inundation. Can greatly reduce the maintenance effort.

  The configuration of the bus duct described above is an example, and is not limited thereto. The bus duct includes a plurality of insulated conductors (electrical conductors + insulators) and a housing that houses the insulated conductors. The present invention can be applied in the same manner as long as a space (or gap) is formed between them, or a space (or gap) is formed between one insulated conductor and another insulated conductor. In other words, these spaces may be artificially provided or have been generated in manufacturing.

  According to the present invention, since the bus ducts that are separated into a plurality of spaces by the separating members are used, it is possible to provide a bus duct system that can be easily restored simply by replacing the bath duct in the submerged portion.

It is a top view of a bus duct. It is an AA cross-sectional arrow view of FIG. FIG. 3 is a cross-sectional view taken along the line BB in FIG. 2. It is explanatory drawing of a bus duct system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Bus duct 11 Housing 12A-12C Insulated conductor 13 Separation member 14A, 14B Connection part 21 Electrical conductor 22 Insulator 25, 25A-25F Space 26, 26A-26F Space

Claims (10)

A plurality of strip-shaped insulated conductors;
A bus duct comprising: a housing that houses the insulated conductor in a watertight manner; and a plurality of separation members that separate the spaces in the housing into a plurality of spaces in a watertight manner.   2. The separation member according to claim 1, wherein a space formed between the housing and the insulated conductor and a space formed between the plurality of insulated conductors are separated into a plurality of spaces. Bus duct. The insulated conductor is an electrical conductor;
An insulator provided on a peripheral surface of the electrical conductor for electrically separating from the other electrical conductor;
The bus duct according to claim 1, comprising:   4. The bus duct according to claim 1, wherein the separation member is formed of tar, putty, a water-absorbing nonwoven fabric, or a room temperature curable resin. 5.   The bus duct according to any one of claims 1 to 4, wherein the separating members are arranged at equal intervals.   The bus duct according to any one of claims 1 to 4, wherein the separating members are arranged at unequal intervals.   The bus duct according to any one of claims 1 to 6, wherein the separating members are made of the same member.   The bus duct according to any one of claims 1 to 6, wherein the separation member is made of different types of members or members of the same material having different dimensions. A plurality of strip-shaped insulated conductors;
A bus duct system in which a plurality of bus ducts including a housing for watertightly storing the insulated conductor and a plurality of separation members for watertightly separating the spaces in the housing into a plurality of spaces are connected and arranged. The bus duct system according to claim 5 or 6, wherein the bus duct is formed by a combination of a bus duct having a bent portion and a straight bus duct having no bent portion.

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