JP2004274940A - Bus duct branching structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize easy manufacturing and simple connection for branching without causing complication of a structure of a connecting part of a bus duct. <P>SOLUTION: Platy branching conductive members 14 that are stacked to both outsides of a same-phase conductor 12 are arranged, and the branching conductive members 14 are constituted such that clips that can clip branch-side connecting terminals 20 to the end rim of the branching conductive members 14 in a state that the connection of the bus duct 10 is performed. Thas is, a clip structure for clipping the connecting terminal that is a connecting member of the branch side can be obtained by only performing connecting work at the normal connecting part of the bus duct. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a bus duct branching structure, and more particularly to a bus duct branching structure that connects to a branch side at a bus duct connecting portion that electrically connects ends of in-phase conductors loaded in each other to each other.
[0002]
[Prior art]
As a method of connecting the bus ducts, there are a so-called butting method in which the loaded conductors are connected in a mutually butted state, and a so-called overlapping method in which the conductors are overlapped and connected. In the butting method, respective in-phase conductors to be connected are abutted at predetermined intervals at opposing positions in the front in the connection direction, and the electrical connection of both conductors is straddled on both outer surfaces of the abutted conductor ends. As described above, this is performed by placing the plate-shaped conductive member for connection in contact. Insulating separators are provided between the connecting conductive members and between the outermost connecting conductive member and the inner wall surface of the bus duct housing.
[0003]
Further, in the superposition method, the ends of the in-phase conductors of the bus ducts to be connected are shifted so as to overlap each other, and are connected in a directly overlapping state. Note that insulating separators are provided between the superposed conductors and between the outermost conductor and the inner wall surface of the bus duct housing.
[0004]
In the bus duct connected in this manner, it is necessary to form a branch line branching from the bus duct main line in order to install a power supply. The branch from the bus duct is performed at an intermediate portion of the bus duct or at a connection portion where the above-described connection is performed.
[0005]
The technique described in Patent Literature 1, which is a conventional bus duct branching structure, performs branching at a butt-type connecting portion, in which a connecting conductive member is disposed outside an insulating separator, and connected in-phase conductors are connected to both sides. It is installed so that it can be sandwiched between. Accordingly, a gap is formed between the conductive members for connection by the thickness of the in-phase conductor sandwiched therebetween.
[0006]
On the other hand, the connection member on the branch side is manufactured by superimposing two conductors to form a branch terminal, and the vicinity of the tip is bent and formed so as to have a bulge in order to impart spring properties. I have. The connection for branching is performed by inserting the branching terminal between the above-described conductive members for connection.
[0007]
Next, Patent Literature 2 discloses that a conductive member for connection having an area larger than a contact surface is provided on both surfaces of a conductor end portion to be connected, and a part of the portion where the conductive member for connection is not provided. Alternatively, a structure is shown in which the whole is substantially abutted with each other so that the portion is used as a branch terminal.
[0008]
Further, Patent Literature 3 discloses a configuration in which in a butt-type connection structure, an end portion of a conductive member for connection is bent and abutted to function as a connection terminal for a connection member on a branch side. .
[0009]
Patent Literature 4 discloses a butt-type connection structure in which a conductive member for connection is formed in a long plate shape that protrudes in a direction orthogonal to a direction in which a bus duct extends in a mounted state, and a portion that protrudes outward from a bus duct housing. Is disclosed as a branch terminal on the bus duct side.
[0010]
Further, Patent Literature 5 discloses an example in which a branch structure is formed at an intermediate position (a portion other than a connection portion) of a bus duct. In this example, one side end of the conductor in the housing is bent so that a space is formed between the conductors, and further, a covering member on the bent end side is partially removed, and the exposed end of the conductor is removed. A clip structure is formed at the edge. This clip structure is configured by attaching a pair of bent members to both side surfaces of a conductor with bolts. The configuration is such that a terminal on the branch side can be inserted and connected between the attached bending members.
[0011]
[Patent Document 1]
JP-B-49-44387 [Patent Document 2]
JP-B-49-44388 [Patent Document 3]
Japanese Patent Publication No. 50-30278 [Patent Document 4]
Japanese Utility Model Laid-Open No. 7-11834 [Patent Document 5]
No. 50-29757 [0012]
[Problems to be solved by the invention]
However, in the technique of Patent Document 1, it is necessary to form a resilient structure at the end of the connection portion on the branch side instead of the bus duct side. There was a problem of cost increase. Further, in the case of the structure of Patent Document 1, since the uncovered exposed area of the connection terminal portion on the branch side is large, it is necessary to make the insulating member on the bus duct side larger than necessary for the conductor to be connected. I have.
[0013]
In the techniques according to Patent Documents 2 and 3, in addition to the bending step for the conductive member for connection on the bus duct side, a step for imparting elasticity to the connection member on the branch side is required, and the number of steps is increased. There was a similar problem that increased the cost.
[0014]
In the techniques according to Patent Documents 1 to 3, it is necessary to make the configuration of the connection part on the branch side relatively long. Therefore, there is also a situation where the branch connection terminal is bent due to collision at the time of connection work or the like. there were.
[0015]
Next, in the technique disclosed in Patent Document 4, the branch terminal plate is configured to protrude greatly from the bus duct housing, which is very obstructive at the connection portion of the bus duct that does not perform branching work. If the branch structure is formed each time as required, there is a situation that the complexity of the branch operation increases.
In the technique according to Patent Literature 5, a so-called clip structure is formed on the bus duct side similarly to the present invention, but the structure is complicated. First, an undesired configuration of removing the conductor covering member occurs. Further, extremely complicated operations such as attaching the clip member to the conductor to form the clip portion with bolts increase. It has become necessary to additionally arrange an insulating member around the periphery.
[0016]
Since this technology is supposed to be formed not in the connection part of the bus duct but in the middle part, it is extremely difficult to form such a structure for branching in each middle part in advance. Will lead to a rise.
[0017]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a structure for branching at a connecting portion of a bus duct without complicating the structure of the connecting portion, making it easy to manufacture and for branching. Another object of the present invention is to provide a bus duct branching structure that can be easily connected.
[0018]
[Means for Solving the Problems]
In order to achieve the above object, the bus duct branch structure according to claim 1 is
A plate-shaped conductive member for branching is disposed on both outer sides of the in-phase conductor, and the conductive member for branching is connected to an end portion of the conductive member for branching in a state where a bus duct is connected. A clip portion capable of holding the terminal is provided.
[0019]
In other words, the clip structure for holding the connection terminal, which is the connection member on the branch side, is obtained simply by performing the connection work at the normal connection portion of the bus duct. For example, the clip structure can be accurately formed on the bus duct side only by connecting the bus duct with the branching conductive members formed in advance arranged on both outer sides of the in-phase conductor. Therefore, the connection terminal on the branch side can have a simple structure that can be inserted into the clip portion.
[0020]
The bus duct branch structure according to claim 2 is
It is intended for a bus duct branch structure that connects to the branch side at the connection part that connects the bus duct in a butt type, and in addition to the conductive member for connection, a flat plate-shaped conductive member for branch is further arranged on both outer sides thereof. The conductive member for branching has a configuration in which a clip portion capable of holding a branch-side connection terminal is formed at an edge portion of the conductive member for branching in a state where the bus duct is connected. .
[0021]
Thus, since the branching conductive member is arranged outside the connection conductive member, which is an essential component in the butt-type connection portion, the branching conductive member narrows the terminal on the branch side. Since it is sufficient to have the minimum necessary strength to hold the conductive member for connection, the conductive member for branching can be made thinner than the structure in which the conductive member for connection is also used as the conductive member for branching. Work becomes easier.
[0022]
The bus duct branch structure according to claim 3 is:
A clip portion formed at an edge of the conductive member for branching is configured so that a pair of conductive members for branching respectively oppose the edge portions of a pair of conductive members for branching disposed on both outer sides of the in-phase conductor. It is configured to bend to the member side and to sandwich the branch-side connection terminal between the bent portions.
[0023]
Thus, the formation of the clip portion is obtained with a simple configuration. That is, the normal bus duct connection work was completed simply by bending the edge portion of the branching conductive member to one side in advance and arranging it on both sides of the conductor or both sides of the connecting conductive member as it is. Sometimes, a state in which a clip portion is formed at a predetermined position is obtained.
[0024]
The bus duct branch structure according to claim 4 is
The clip portion of the branching conductive member is disposed so as to be located in a space between protruding edges of a plate-shaped insulating separator provided between connected common-mode conductors adjacent to the connected common-mode conductor. Have been. Accordingly, it is not necessary to separately provide an insulating member around the connecting portion for branching, and the structure of the bus duct connecting portion is not complicated.
[0025]
The bus duct branch structure according to claim 5 is:
The branch-side connection terminal is formed of one plate member. As a result, the branch-side connection terminal has an extremely simple configuration, so that manufacturing is easy or cost is reduced.
[0026]
Embodiment
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1A and 1B show a first embodiment of the present invention, wherein FIG. 1A is a front view, FIG. 1B is a plan view, and FIG. 1C is a side sectional view.
[0027]
The bus duct 10 shown in FIG. 1 forms an electric trunk line in an office building or the like, and has three insulated conductors 12-1, 12-2, and 12-3 closely mounted inside and loaded therein. ing. The illustrated portion is a connection portion between the bus ducts 10-1 and 10-2, and a structure is shown in which the portions 13 from which the coating layers of the conductors 12 have been removed are overlapped with each other as shown in the drawing. . In the figure, a portion indicated by a dashed line 100 is a cover member of the bus duct housing at the connection portion, and a portion indicated by a dashed line 200 is an opening formed in the cover member 100.
[0028]
As can be understood from FIG. 2C, the conductors 12 to be connected are overlapped with each other, and on both outer sides thereof, a branching conductive member 14, which is a characteristic feature of the present invention, is disposed. I have. Further, insulating separators 16 are disposed on both outer surfaces. The insulating separators 16 are also arranged between the connection conductive members 14 on both outer sides and the housing side wall.
[0029]
What is characteristic in the present embodiment is that the both ends of the branching conductive member 14 are bent toward the branching conductive member 14 facing each other, and the fastening operation by the fastening member 300 for fastening the connection portion of the bus duct is performed. Is completed, clip portions capable of sandwiching the terminals on the branch side are formed at the edge portions on both sides of each branch connection member 14 in cooperation with the opposing pair of branch conductive members 14. It is configured.
[0030]
As described above, according to the present embodiment, the configuration is such that both side edges of the branching conductive member 14 are bent in advance for clip formation, and these are placed between the conductor 12 and the insulating separator 16. The clip portion is formed after the normal fastening operation is performed simply by placing the clip portion. Thus, a bus duct having a clip portion into which the terminal on the branch side can be inserted is completed.
[0031]
FIG. 2 shows a situation in which the branch-side connection member is connected to the bus duct-side branch structure according to the embodiment shown in FIG. As shown in the figure, three branch-side connection terminals 20 are formed on the branch-side plug-in device 18, and these are moved downward in the drawing to thereby form a conductive member for branching as shown in FIG. A state is shown in which three clips are simultaneously inserted into the clip portions formed at the end of the fourteen.
[0032]
As shown in the drawing, the configuration of the branch-side connection terminal 20 is sufficient as long as it can be inserted into the clip portion formed at the end of the conductive member 14 for branching, and can be a very simple configuration. For example, it can be composed of only one conductive member. This solves various problems that occur when the branch-side connection terminal is constituted by two conductive members as in Patent Documents 1 and 2 given as the above-described conventional techniques. That is, problems such as troublesome processing for insulation and breakage of the insulating material between the two conductive members after the processing are solved.
[0033]
The connecting portion between the clip portion formed on the branching conductive member 14 and the branch-side connection terminal 20 has the insulating separators 16 on both sides thereof, that is, the branching portion is formed within a region insulated by the insulating separator. Is established, and there is no need to separately add a configuration for insulation. Therefore, the branch-side connection terminal 20 is manufactured under the condition that the length reaches the clip portion formed on the branching conductive member 14 and that the portion to be inserted into the clip portion is exposed.
[0034]
3A and 3B show another embodiment, wherein FIG. 3A is a front view, FIG. 3B is a plan view, and FIG. 3C is a side sectional view. In the figure, the same components as those in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted.
[0035]
In the present embodiment, the connection system is different from the connection system of FIG. 1 in the fastening system, and the fastening member is arranged at only one central position of the bus duct as in the configuration of FIG. Instead, it is configured to be fastened by the fastening members 300-1 and 300-2 at two positions near both side ends of the side surface of the bus duct 10. Therefore, as can be understood from FIGS. 9A and 9B, the clip portion formed by the branching conductive member 14 is within a predetermined range on both sides of the fastening members 300-1 and 300-2. Is formed. The configuration in which the connection terminal on the branch side is inserted and connected to the clip portion is the same as in the case of FIG. That is, as shown in the figure, two clip portions 14-1 and 14-2 are formed.
[0036]
4A and 4B show still another embodiment, wherein FIG. 4A is a front view, FIG. 4B is a plan view, and FIG. 4C is a side sectional view. In the figure, the same elements as those in the above embodiments are denoted by the same reference numerals, and the description thereof will be omitted.
[0037]
The connection portion according to this embodiment has a so-called butt-type connection structure. In the case of performing the butt-type connection, a conductive member for connection arranged as a so-called contact plate for connecting the ends of the in-phase conductors that have been butt-matched is an essential component. In other words, the connection conductive member is disposed so as to be simultaneously straddled on the side surfaces of the end portions of the in-phase conductors 12 that are abutted, but in the present embodiment, such a connection conductive member is provided. The conductive member is used as the branching conductive member 14.
[0038]
As can be understood from the drawing, on both outer sides of the conductor 12 to be connected, a plate-shaped branching conductive member 14 also serving as a connecting conductive member is arranged. This branching conductive member 14 is disposed on both outer sides of the conductor 12 in the same manner as that shown in the embodiment of FIG. 1, and its edge is bent toward the pair of opposing branching conductive members 14. It is configured. Then, at the time when the connection portion is fastened by the fastening member 300, a clip portion is formed at the edge portion thereof by the pair of the branching conductive members 14 sandwiched and overlapped by the conductor 12 and the insulating separator 16, respectively. Cooperation is formed.
[0039]
As described above, according to the present embodiment, in the butt-type connection structure, the bus duct 10 can be easily formed without increasing the number of components for connection so far and without increasing the thickness of the connection portion. A clip portion for receiving the branch-side connection terminal on the side can be configured. Also, the formation of the clip portion is automatically formed only by performing the fastening operation using the ordinary fastening member 300. The branching conductive member 14 according to the present embodiment simultaneously has two functions, that is, a function of connecting butted in-phase conductors to each other and a configuration of a clip portion for branching.
[0040]
FIG. 5 shows various examples of the clip portion that can be variously selected in the present invention. In the clip portion shown in FIG. 3A, the end of the branching conductive member 14 is bent by a predetermined angle toward the opposing branching conductive member 14 and the end is bent back to insert the branch-side connection terminal. This is a configuration that is easy to perform.
[0041]
The clip portion shown in FIG. 7B shows a simple configuration example that is easy to manufacture by simply bending the end portions of the branching conductive member 14 toward the opposing branching conductive member by a predetermined angle. ing.
[0042]
The clip portions shown in FIG. 3C are not used as a pair with the separate branching conductive members 14 but are integrated. Therefore, as shown in the figure, the conductor 12 to be connected and formed in a frame shape in a side view is inserted therein. The clip portion is formed by forming a concave portion 14a at a side end of the integral branching conductive member.
[0043]
In the configuration of the clip portion shown in FIG. 4D, a projecting portion 14b is formed in which the edge of the branching conductive member 14 protrudes in a semicircular shape toward the opposing branching conductive member 14 side. This is a structure of a clip portion that allows a branch terminal to be inserted between the protruding portions 14b.
[0044]
FIG. 6 shows still another embodiment. The present embodiment is an application example of a butt-type connection structure. As shown in FIG. 1A, a connection conductive material having a predetermined thickness is provided on both outer surfaces of a butt-connected conductor 12. Sex member 22 is arranged. Further, conductive members for branching 24 are disposed on both outer sides as members constituting a clip portion for branching. The configuration of the clip portion formed at the edge of the conductive member 24 for branching is the same as that in each of the above-described embodiments, and a description thereof will be omitted.
[0045]
According to the present embodiment, a commonly used connection conductive member 22 is provided as a member for connecting the conductors 12 to each other. Therefore, the branching conductive members 24 arranged on both outer sides thereof are not a structure for connecting a conductor serving as a main line, but a function only for connection for branching. It becomes possible. Therefore, it is possible to form the clip portion more easily than in the case where the clip portion also serves as the conductive member for connection.
[0046]
The configuration shown in FIG. 6B is a configuration in which the configuration of the branching conductive member 26 provided in addition to the connection conductive member 22 is made smaller, and as shown in the drawing, It is configured such that it partially overlaps between the insulating separator 22 and the insulating separator 16. In the present embodiment, a cutout portion 16a is formed in a part of the insulating separator 16, and the branching conductive member 26 is sandwiched in this portion. According to the present embodiment, it is possible to reduce the size of the branching conductive member 26, and to configure the notch portion 16a in advance so that the branching conductive member 26 can be formed later using an adhesive or the like. The member 26 can also be incorporated.
[0047]
As shown in the figure, since the clip portions are formed on both side edges of the branching conductive member 14, connection for branching can be performed regardless of whether the bus duct is up or down.
[0048]
The present invention is not limited to the configurations shown in the above embodiments, and various modifications can be made within the scope of the invention. For example, in each of the above-described embodiments, an example has been described in which the clip portions are formed on both side edges of the branching conductive member, but they may be formed only on one side edge, respectively. In addition, as described above, the branching conductive member is not limited to a pair of structures, and may be an integral type. Further, various shapes for forming the clip portion may be used. Of course.
[0049]
【The invention's effect】
As described above, according to the branch structure of the bus duct according to the present invention, the branch portion of the bus duct at the connecting portion of the bus duct has a simple structure without complicating the structure of the connecting portion and complicating the connecting work. Connection structure can be formed, and the structure of the connection portion on the branch side can be a simple structure.
[Brief description of the drawings]
FIG. 1 shows an embodiment of a branch structure of a bus duct of the present invention, in which (A) is a front view, (B) is a plan view, and (C) is a side sectional view.
FIG. 2 is an explanatory diagram showing a connection operation for branching in the embodiment according to FIG. 1; (A) shows a state before connection, and (B) shows a connected state.
FIGS. 3A and 3B show another embodiment of the branch structure of the bus duct according to the present invention, wherein FIG. 3A is a front view, FIG. 3B is a plan view, and FIG.
FIGS. 4A and 4B show an embodiment of the present invention relating to a butt-type connection structure such as a bus duct, in which FIG. 4A is a front view, FIG. 4B is a plan view, and FIG.
FIGS. 5A to 5D show various configuration examples of a clip portion formed by a conductive member for branching in an overlapping connection structure such as a bus duct.
FIGS. 6A and 6B show other embodiments applied to a butt connection structure, respectively.
[Sign]
DESCRIPTION OF SYMBOLS 10 Bus duct 12 Conductor 14, 24, 26 Branching conductive member 16 Insulating separator 100 Cover member of bus duct housing 200 Opening 300 Fastening member

Claims (5)

In a bus duct branching structure for connecting with a branch side at a bus duct connecting portion for electrically connecting ends of the in-phase conductors loaded in each other bus duct,
In the connection portion, a plate-shaped branching conductive member is disposed on both outer sides of the in-phase conductors that are overlapped or butted against each other,
The branching conductive member has a configuration in which a clip portion capable of holding a branch-side connection terminal is formed at an edge portion of the branching conductive member in a state where the bus duct is connected. The characteristic branch structure of the bus duct. In a bus duct connecting portion for electrically connecting the in-phase conductors by arranging the ends of the in-phase conductors loaded in the bus ducts to each other and arranging a connecting conductive member so as to straddle both outer sides of the abutted in-phase conductors In the bus duct branch structure that connects to the branch side,
A plate-shaped branching conductive member is arranged on both outer sides of the connection conductive member,
The branching conductive member has a configuration in which a clip portion capable of holding a branch-side connection terminal is formed at an edge portion of the branching conductive member in a state where the bus duct is connected. The characteristic branch structure of the bus duct. A clip portion formed at an edge portion of the branching conductive member,
Ends of a pair of branching conductive members disposed on both outer sides of the in-phase conductor are bent toward opposing branching conductive members, respectively, and the branch-side connection terminal is provided between the bent portions. The bus duct branch structure according to any one of claims 1 to 2, wherein the bus duct branch structure is held. The clip portion of the conductive member for branching,
The plate-like insulating separator provided between adjacent connected common-mode conductors is connected to the connected common-mode conductor so as to be located in a space between protruding edges of the insulating separator. 3. The bus duct branch structure according to any one of 3. The branch side connection terminal,
The bus duct branch structure according to any one of claims 1 to 4, wherein the bus duct branch structure is formed of one plate-shaped member.

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