JP2003199218A - Cabinet panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cabinet panel that secures a connection part with a main breaker at the end of a conducting bar without lengthening the end, to which a branch breaker is connected, and whose width dimension is made small. <P>SOLUTION: First connection parts 55 are provided at both ends of a first conducting bar 51. Second connection parts 62 are provided protrusively at one side of both ends of a second conducting bar 52. Third connection parts 69 are provided protrusively at the other side of both ends of a third conducting bar 53. These first to third conducting bars 51 to 53 are supported by end supporting members 46, 47 in a state that they are stacked but separated to each other. The first to third connection parts 55, 62 and 69 are secured without lengthening the ends of the first to third conducting bars 51 to 53, and the width dimensions that correspond to the longitudinal directions of the first to third conducting bars 51 to 53 are made small. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a distribution board used in houses, shops and the like.

[0002]

2. Description of the Related Art Conventionally, for example, JP-A-11-18751.
As described in Japanese Patent Laid-Open No. 2 (1994), a single-phase three-wire type distribution board uses one conductive bar for neutral poles and two conductive bars for voltage poles. Conductive bars are arranged in a state of being separated from each other and stacked, and each connecting bar for connecting to the main breaker is attached to one end of each conductive bar with each screw, and the middle of the conductive bar is the middle of this conductive bar. A plurality of branch breakers arranged in parallel along both sides of the section are electrically connected.

Each conductive bar is formed in a slender plate shape, and three conductive bars are arranged in a state of being separated from each other by end supporting members supporting both ends in the longitudinal direction. Since it is necessary to place a screw for attaching the connection bar at one end of each conductive bar, the length of one end side of the middle conductive bar is set longer than the conductive bar on the front side and the screw is arranged, The length of one end side of the conductive bar on the opposite side is made longer than the length of the intermediate conductive bar, and screws are arranged so that the screws arranged at one end of each conductive bar do not overlap.

[0004]

However, the length of one end of the three conductive bars that are arranged in an overlapping manner is increased in order,
Since the screws arranged at one end of each conductive bar do not overlap, the dimension of the conductive bar in the longitudinal direction becomes long, and the width of the distribution board corresponding to the length direction of this conductive bar becomes large. There is a problem. In particular, to connect other equipment other than the distribution board and branch breaker to the other end of the conductive bar,
If you want to place a mounting screw on the other end of the conductive bar,
There is a problem that the length of the conductive bar becomes longer and the width of the distribution board becomes larger.

The present invention has been made in view of the above-mentioned circumstances, and it is possible to secure a connecting portion without lengthening the end portion of the conductive bar and reduce the width dimension corresponding to the longitudinal direction of the conductive bar. The purpose is to provide a board.

[0006]

According to a first aspect of the present invention, there is provided a distribution board according to claim 1, wherein a first conductive bar having a first connection portion at an end thereof is provided.
A second conductive bar having a second connecting portion projecting on one side of the end portion, and a third conductive bar having a third connecting portion projecting on the other side of the end portion.
A conductive bar group having a conductive bar; and an end support for supporting an end of the conductive bar group and arranging the first to third conductive bars in a state of being overlapped with each other; an end of the conductive bar group A main breaker connected to the section; and a branch breaker connected to the middle of the conductive bar group.

In this structure, the first connecting portion is provided at the end portion of the first conductive bar, the second connecting portion is provided at one side of the end portion of the second conductive bar, and the third connecting portion is provided. Since the third connecting portion is provided on the other side of the end of the conductive bar and the first to third conductive bars are arranged in a state of being separated from each other and stacked, the first to third conductive bars are formed. The first to third connecting portions are secured without lengthening the end portions of, and the width dimension corresponding to the longitudinal direction of the first to third conductive bars is reduced.

According to a second aspect of the present invention, there is provided a distribution board according to the first aspect, wherein the first conductive bar has first connecting portions at both ends thereof, and the second conductive bar has both ends thereof. The second connecting portion is provided on one side of the portion and is formed in a substantially U-shape, and the third conductive bar is formed in a substantially U-shape by providing the third connecting portion on the other side of both ends. There is something.

In this structure, the first connecting portion is provided at both ends of the first conductive bar, and the second and third connecting portions are provided at both ends of the second and third conductive bars. Since it is formed in a V shape, the first to third conductive bars have the first
To 3rd connection part, even if it has 1st to 3rd
The first to third connection portions are secured without lengthening both ends of the conductive bar, and the width dimension corresponding to the longitudinal direction of the first to third conductive bars is reduced.

A distribution board according to a third aspect is the distribution board according to the first or second aspect, in which the center portion of the end support is formed so as to project toward one side and the other side. A first support portion that supports the first connection portion of the first conductive bar is provided, and a second support portion that supports the second connection portion of the second conductive bar is provided on one side, On the other side, a third supporting portion that supports the third connecting portion of the third conductive bar is provided.

In this structure, the central part of the end support is formed so as to project toward one side and the other side, and the first connecting part of the first conductive bar is formed in the central part of the end support. And a second support for supporting the second and third connection portions of the second and third conductive bars on one side and the other side of the end support body. Since the support portion is provided, the creepage distance between each of the first to third connection portions is secured, and the insulation performance is improved.

A distribution board according to a fourth aspect is the distribution board according to the third aspect, in which the second and third support portions of the end support are provided in the same plane position, and the second conductive bar of the second conductive bar is provided. The second connecting portion is bent and protrudes on the side facing the third conductive bar,
The third connecting portion of the third conductive bar is bent and protrudes on the side facing the second conductive bar.

In this structure, the second connecting portion of the second conductive bar is bent and protrudes on the side facing the third conductive bar, and the third connecting portion of the third conductive bar is provided. Is bent and protruded to the side facing the second conductive bar, the second and third connecting portions are provided with the second and third supporting portions provided at the same surface position of the end supporting body. Placed in the section.

A distribution board according to a fifth aspect is the distribution board according to any one of the first to fourth aspects, in which the second and third conductive bars have the same shape, and the overlapping and separating directions are opposite to each other. It is arranged in the direction.

In this structure, the second and third conductive bars are formed in the same shape, and the overlapping and separating directions of the second and third conductive bars are arranged in opposite directions. Also, the third conductive bar can be shared.

A distribution board according to claim 6 is the distribution board according to any one of claims 1 to 5, further comprising an intermediate support for holding an intermediate portion of the first to third conductive bars. Is.

Further, in this structure, since the intermediate portions of the first to third conductive bars are held by the intermediate support,
The distance between the first to third conductive bars is maintained to ensure the connection of the branch breaker.

According to a seventh aspect of the present invention, there is provided a distribution panel according to the sixth aspect, wherein the intermediate support includes the first conductive bar and the second conductive bar.
And a holding member for holding the distance between the second conductive bar and the third conductive bar, and the first to third parts are provided between the cover and the holding member.
The intermediate portion of the conductive bar is sandwiched and held.

In this structure, the cover for holding the space between the first conductive bar and the second conductive bar and the holding member for holding the space between the second conductive bar and the third conductive bar are provided. Since the intermediate portions of the first to third conductive bars are sandwiched and held between them, it is possible to easily hold the distance between the first to third conductive bars and ensure the distance.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view of the conductive bar group and end support of the distribution board in an exploded state, FIG. 2 is a front view of the distribution board, and FIG. 3 is a conductive bar group and end support of the distribution board. FIG. 4 is a side view in which a part of the conductive bars, end supports and intermediate supports of the distribution board are cut away, and FIG. 5 is a branch breaker of the distribution board.
It is a side view which notched some conductive bars and an intermediate support body.

In FIG. 2, the distribution board 11 is a distribution board body 12
The distribution board body 12 is formed into a horizontally long box-like shape including a case installed on a wall surface and a cover detachably attached to the front surface of the case. The distribution board unit 13 is disposed in the.

The distribution board unit 13 corresponds to a single-phase three-wire system having a pair of voltage line and neutral line, and has a main breaker 16, a plurality of branch breakers 17, a branch breaker connecting device 18, and the like. Then, these are attached to the device mounting plates 19 and 20, and the distribution board body is attached by these device mounting plates 19 and 20.
Installed in 12 cases.

The device mounting plates 19 and 20 are made of metal,
Integrated by being screwed together, the main circuit breaker 16 is disposed on the left side device mounting plate 19 which is one end side, and the branch breaker connecting device 18 is provided at the center of the right side device mounting plate 20 which is the other end side. A plurality of branch breakers 17 are arranged side by side along the both sides of the branch breaker connecting device 18 in upper and lower two stages.

Further, the master breaker 16 has an operation lever 23 for switching the connection or disconnection on the front surface opposite to the surface mounted on the equipment mounting plate 19, and the main breaker 16 has an operation lever 23 inside the distribution board body 12 above. A primary-side terminal portion 24 to which a single-phase three-wire type power supply line (not shown) to be drawn in is connected and a commercial power of 100/200 V is supplied is arranged, and a secondary side connected to a branch breaker connecting device 18 is provided in a lower portion. The side terminal portion 25 is provided. These primary side terminal portion 24 and secondary side terminal portion 25,
It is provided with three terminals each for a pair of voltage pole and a neutral pole.

The secondary side terminal portion 25 of the main breaker 16 and the branch breaker connecting device 18 are electrically connected by connecting bars 26, 27 of a pair of voltage poles and a connecting bar 28 of a neutral pole.
These connecting bars 26 to 28 are made of metal plate, and the main breaker 16
Are arranged along the side portions from the lower part of each of the above, one end of each is connected to each terminal of the secondary side terminal portion 25 of the main breaker 16, and the other end is connected to the branch breaker connecting device 18.

The primary side terminal portion 24 and the secondary side terminal portion 25 of the main breaker 16 and the connecting bars 26 to 28 are integrally covered with an insulating cover 29. This insulating cover 29 is approximately L
It has a connecting bar cover 30 in the shape of a letter, and this connecting bar cover 30
A primary side terminal part covering part 31 covering the primary side terminal part 24 of the main breaker 16 is integrally formed on the upper part of the connection part 32 so as to be openable and closable via a hinge part 32. The secondary side terminal portion covering portion 33 that covers the terminal portion 25 is the hinge portion 34.
It is integrally formed so that it can be opened and closed via.

Each branch breaker 17 has a device mounting plate 20.
The branch breaker connecting device 18 has an operating lever 37 for switching between disconnection and connection on the front surface opposite to the surface mounted on the
The power supply side connecting part 38 connected to the branch breaker connecting device 18 is provided at one end facing the side, and the other end opposite to the power supply side connecting part 38 is connected to the load side of the load side for connecting an electric wire wired to the load side. A connecting portion 39 is provided. The power supply side connection part 38 is shown in FIG.
As shown in FIG. 3, three groove portions 40 are formed in the height direction with respect to the device mounting plate 20, and a connection terminal (not shown) is arranged in each groove portion 40.

Further, as shown in FIGS. 1 to 5, the branch breaker connecting device 18 includes a conductive bar group 45 and a conductive bar group 45.
It has end supports 46, 47 for supporting both ends of 45 and an intermediate support 48 for supporting the middle part of the conductive bar group 45.

The conductive bar group 45 has a first conductive bar 51 for a neutral pole, a second conductive bar 52 for one voltage pole and a third conductive bar 53 for the other voltage pole, The first to third conductive bars 51 to 53 are spaced apart from each other by the end supports 46 and 47 and the intermediate support 48 and are arranged in the order of being stacked. These first to third conductive bars 51 to 53 are formed of a metal plate having conductivity and are elongated in the longitudinal direction which is both end directions corresponding to the juxtaposed direction of the branch breakers 17, as shown in FIG. In the arrangement shown, the metal plate materials are punched and formed at the same time.

The first conductive bar 51 has a substrate portion 54 elongated in the longitudinal direction, and the first connecting portion is provided at both ends of the substrate portion 54.
55 is formed, a connection hole 56 and a mounting hole 56a are formed in each of these first connecting portions, and a plurality of hole portions 57 are formed in the middle portion of the substrate portion 54 along the longitudinal direction and at both side edges. Chamfers 58 are formed at the corners.

The second conductive bar 52 has a board portion 59 which is elongated in the longitudinal direction, and both ends of the board portion 59 are substantially U-shaped.
A groove portion 60 having a V shape is formed, and a bent portion 61 that is bent to a side facing the third conductive bar 53 is formed at one side edge portion of both ends of the substrate portion 59.
The second connection portion 62 is formed to project through the
A connection hole 63 is formed in the connection portion 62. Therefore,
The second conductive bar 52 is formed in a substantially U-shape by the board portion 59 and the second connecting portions 62 at both ends. Second conductive bar
A plurality of holes 64 are formed in the middle of 52 along the longitudinal direction, and chamfers 65 are formed at the corners of both side edges.

The third conductive bar 53 has a base plate portion 66 elongated in the longitudinal direction, and both ends of the base plate portion 66 are substantially U-shaped.
A groove 67 having a V-shape is formed, and a bent portion 68 that is bent toward the side facing the second conductive bar 52 is formed at the other side edge portions of both ends of the substrate portion 66.
A third connecting portion 69 is formed so as to project through the
A connection hole 70 is formed in the connection portion 69. Therefore,
The shape of the third conductive bar 53 is formed in a substantially U-shape by the board portion 66 and the third connecting portions 69 at both ends. Third conductive bar
A plurality of holes 71 are formed in the middle of 53 along the longitudinal direction, and chamfers 72 are formed at the corners of both side edges.

Then, the first to third conductive bars 51 to 53
Is formed to have the same length in the longitudinal direction, and the widths of the respective substrate parts 54, 59, 66 are also formed to be the same width.
When they are overlapped with each other, the outer shapes of the substrate parts 54, 59, 66 coincide with each other, and the second connecting part 62 and the third connecting part 69 project from both sides. The second conductive bar 52 and the third conductive bar 53 have the same shape, and are arranged so that the overlapping and separating directions are opposite to each other.

The end supports 46, 47 are made of insulating synthetic resin and are symmetrically formed.
A central support base for engaging the ends of the first to third conductive bars 51 to 53 with the central part and supporting these first to third conductive bars 51 to 53 in a state of being spaced apart from each other and overlapping in order. 75 is formed, and side support pedestals 76 and 77 for arranging the second and third connecting portions 62 and 69 are formed on both sides of the central support pedestal 75. The height of the central support base 75 from the surface to be attached to the device mounting plate 20 is higher than that of the side support bases 76, 77, and the end supports 46, 47 are formed in a substantially convex shape.

A first engaging portion 78 for disposing the first connecting portion 55 of the first conductive bar 51 and an end portion of the substrate portion 59 of the second conductive bar 52 are inserted into the central support base 75. Groove-shaped second engaging
And a groove-shaped third engaging portion 80 into which the end portion of the substrate portion 66 of the third conductive bar 53 is inserted and engaged.

A first conductive bar is provided on both sides of the first engaging portion 78.
Projecting portions 81 for positioning the positions of both sides of 51 are formed to project, and the second and third engaging portions 79, 80 have respective substrate portions 59, 66.
Protrusions 82 and 83 are formed so as to be engaged with the groove portions 60 and 67 to position the positions in both directions.

On the outer surface of the central support base 75, there is formed a first support portion 84 which also serves as a first engaging portion 78 for supporting the first connecting portion 55 of the first conductive bar 51. One side support base
The second support portion 85 for supporting the second connection portion 62 of the second conductive bar 52 is formed on the 76, and the third side of the third conductive bar 53 is formed on the side support base portion 77 on the other side. A third support portion 86 that supports the connection portion 69 is formed. Therefore, the end supports 46, 47
Is the first support portion 84 from the surface to be attached to the device mounting plate 20.
Is higher than the second support portion 85 on one side and the third support portion 86 on the other side, and the second support portion 85 and the third support portion are
86 is in the same plane position, and is formed in a substantially convex shape as a whole. Each nut is attached to the first to third supporting portions 84 to 86.
The nuts 87 are attached to form nut holding grooves 88 for holding the nuts 87 in a non-rotating state. In each nut 87, each connecting screw 89 is connected to each connecting bar 26-28 and the first to third connecting portions 55, 6 of the first to third conductive bars 51 to 53.
It is screwed through the connection holes 56, 63, 70 of the 2, 69.

The intermediate support 48 also includes a first conductive bar 51.
And a second conductive bar 52 are provided with a cover 92, and a second conductive bar 52 and a third conductive bar 53 are provided with a holding member 93. The cover 92 and the holding member 93 are provided. And the intermediate portions of the first to third conductive bars 51 to 53 are sandwiched and held.

The cover 92 is made of an insulating synthetic resin and is arranged on the front surface side of the first conductive bar 51 and covers the power supply side connection portion 38 of the branch breaker 17 and has a substantially T-shaped cross section 94.
From this cover portion 94 to each hole portion of the first conductive bar 51
A plurality of spacer shafts 95 to be inserted into 57 are integrally formed. Each of the spacer shafts 95 passes through the hole 57 of the first conductive bar 51 at the insertion position where the tip of each spacer shaft 95 abuts the second conductive bar 52, and prevents the spacer 57 from coming off at the edge of the hole 57. A claw portion 96 that engages is formed. Therefore, the cover 92
Is attached to the first conductive bar 51,
The distance between the second conductive bar 52 and the second conductive bar 52 is maintained.

The holding member 93 is made of an insulating synthetic resin and has a holding portion 97 arranged on the back surface side of the third conductive bar 53, and each of the holding portion 97 to the third conductive bar 53. A plurality of spacer shafts 98 that are inserted into the holes 64 of the second conductive bar 52 through the holes 71 are integrally formed. On the tip end side of each of the spacer shafts 98, there is a claw portion 99 that is attached to the edge of the hole portion 64 at the insertion position where the tip of each spacer shaft 98 has passed through the hole portion 64 of the second conductive bar 52. Has been formed. Therefore, the holding member 93 is attached to the second conductive bar 52 and holds the space between the second conductive bar 52 and the third conductive bar 53.

To assemble the branch breaker connecting device 18, first, both ends of the first to third conductive bars 51 to 53 are engaged with the end supports 46 and 47 at both ends. That is, the first connecting portion 55 of the first conductive bar 51 is connected to the first engaging portion.
78, the end portion of the substrate portion 59 of the second conductive bar 52 is inserted into and engaged with the groove-shaped second engaging portion 79, and the third conductive bar 53
The end portion of the base plate portion 66 is inserted into and engaged with the groove-shaped third engaging portion 80. As a result, by the end supports 46 and 47 at both ends,
The first to third conductive bars 51 to 53 are supported so as to be separated from each other and sequentially overlap each other.

In this state, the first connecting portions 55 at both ends of the first conductive bar 51 are connected to the first supporting portions 84 of the end supporting members 46 and 47,
The second connecting portions 62 at both ends of the second conductive bar 52 are end supports.
The third support portions 86 of the end support members 46 and 47 support the second support portions 85 of the end support members 46 and 47, and the third connection portions 69 at both ends of the third conductive bar 53.

Screws (not shown) are screwed into the end supports 46 and 47 through the respective mounting holes 56a at both ends of the first conductive bar 51 to fix the first conductive bar 51 to the end supports 46 and 47. .

Subsequently, the intermediate portions of the first to third conductive bars 51 to 53 are sandwiched and held between the cover 92 of the intermediate support 48 and the holding member 93. That is, each spacer shaft 95 of the cover 92 is inserted into each hole 57 of the first conductive bar 51, and the claw portion 96 of each spacer shaft 95 is passed through the hole 57 of the first conductive bar 51 to form the hole. Attach to the edge of part 57 to prevent it from coming off. As a result, the cover 92 is attached to the first conductive bar 51,
The distance between the first conductive bar 51 and the second conductive bar 52 is maintained.

Each spacer shaft 98 of the holding member 93 is passed through each hole 71 of the third conductive bar 53 and each hole 64 of the second conductive bar 52.
And insert the claws 99 of each spacer shaft 98 into the second conductive bar 52.
It is passed through the hole 64 and is attached to the edge of the hole 64 so as to prevent it from coming off. As a result, the holding member 93 is attached to the second conductive bar 52, and the second conductive bar 52 and the third conductive bar 53 are attached.
Holds the interval with.

In this way, the end support members 46, 47 and the intermediate support member 48 support the first to third conductive bars 51 to 53 in a state of being separated from each other and sequentially stacked, and the branch breaker connecting device 18 is provided. Assemble.

Then, the assembled branch breaker connecting device
18 is attached to the equipment mounting plate 20, and a plurality of branch breakers 17 arranged in parallel along both sides of the intermediate portion of the conductive bar group 45 of the branch breaker connecting device 18 are connected. That is, the first to third conductive bars 51 to 53 are engaged with the respective groove portions 40 of the power source side connection portion 38 of each branch breaker 17, and the connection terminals (not shown) arranged in the respective groove portions 40 are connected to the first to third portions. Connect to the third conductive bar 51-53. The connection of each branch breaker 17 to the first to third conductive bars 51 to 53 is such that the load side connected to each branch breaker 17 is a load of 100V or 200V.
It is switched depending on whether the load is V or not.

Further, the respective connection bars 26 to 28 corresponding to the first to third connection portions 55, 62, 69 at one end of the first to third conductive bars 51 to 53 of the branch breaker connection device 18 are provided. Nuts that are arranged and pre-attached to the end support 46 through the connecting bars 26-28 and the connecting holes 56, 63, 70 of the first to third connecting parts 55, 62, 69 respectively. It is screwed to 87, and the first to third connecting portions 55, 62, 69 and the connecting bar 26 to
28 and tighten and fix and connect.

According to the distribution board 11 thus constructed, the first connecting portion 55 is provided at the end of the first conductive bar 51, and one side of the end of the second conductive bar 52 is provided. A second connecting portion 62 on the other side of the end of the third conductive bar 53.
Since 69 is provided in a protruding manner and the first to third conductive bars 51 to 53 are arranged in a state of being separated from each other and stacked, the end portions of the first to third conductive bars 51 to 53 are not lengthened. The first to third connection portions 55, 62, 69 can be secured, and the width dimension of the distribution board 11 corresponding to the longitudinal direction of the first to third conductive bars 51 to 53 can be reduced.

Moreover, the first conductive bar 51 has a first
Connection portion 55 is provided, and second and third connection portions 62 and 69 are provided at both ends of the second and third conductive bars 52 and 53 to form a substantially U-shape. Even if the bars 51 to 53 have the first to third connecting portions 62 and 69 at both ends,
The first to third connection portions 55, 62, 69 can be secured without lengthening the both ends of the first to third conductive bars 51 to 53, and the first to third conductive bars 51 to 53 in the longitudinal direction. Distribution board corresponding to
The width dimension of 11 can be miniaturized.

Further, the central portions of the end support members 46 and 47 are formed so as to project toward one side and the other side, and the first conductive bar 51 has a first portion at the center portion of the end support members 46 and 47. The first support portion 84 for supporting the connection portion 55 of the end support body 46, 47 is provided.
Second and third conductive bars 52, 53 on one side and the other side
Since the second and third support parts 85 and 86 for supporting the second and third connection parts 62 and 69 of the above are provided, the connection between the first to third connection parts 55, 62 and 69 respectively. The creepage distance can be secured and the insulation performance can be improved.

The second connecting portion 62 of the second conductive bar 52 is connected to the third connecting portion 62.
Since the third connecting portion 69 of the third conductive bar 53 is bent and protrudes toward the side facing the second conductive bar 52, the third connecting portion 69 of the third conductive bar 53 is bent and protrudes toward the side facing the second conductive bar 52. The second and third connecting portions 62, 69 can be arranged on the second and third supporting portions 85, 86 provided on the same plane position of the end supporting bodies 46, 47.

Since the second and third conductive bars 52 and 53 are formed in the same shape and the overlapping and separating directions of the second and third conductive bars 52 and 53 are arranged in the opposite directions, the second and third conductive bars 52 and 53 are arranged in opposite directions. Also, the third conductive bars 52 and 53 can be shared.

Further, since the intermediate portion of the first to third conductive bars 51 to 53 is held by the intermediate support 48, the interval between the first to third conductive bars 51 to 53 is maintained and the branch breaker is maintained.
17 connections can be secured.

A cover 92 for holding the space between the first conductive bar 51 and the second conductive bar 52, and a holding member 93 for holding the space between the second conductive bar 52 and the third conductive bar 53. Since the intermediate portions of the first to third conductive bars 51 to 53 are sandwiched and held between the first and third conductive bars 51 to 53, the first to third conductive bars 51 to 53 can be easily held at intervals and the intervals can be reliably held. .

In addition, the insulating cover 29 has a connection bar covering portion 30 for covering the connection bars 26 to 28, a primary side terminal portion covering portion 31 for covering the primary side terminal portion 24 of the main breaker 16, and a secondary side of the main breaker 16. Since the secondary side terminal portion covering portion 33 that covers the side terminal portion 25 is integrally formed, it is possible to reduce the number of parts and the number of mounting steps. Moreover, since the primary-side terminal portion covering portion 31 and the secondary-side terminal portion covering portion 33 can be opened and closed via the hinge portions 32 and 34, the insulating breaker 29 is not removed from the distribution board 11, and the main circuit breaker 16 is not removed. Connection work and maintenance work of the primary side terminal portion 24 and the secondary side terminal portion 25 can be facilitated.

Although the first to third connecting portions 55, 62 and 69 are provided at both ends of the first to third conductive bars 51 to 53,
In the case of a specification in which no other distribution board or device is connected to the other end side, the distribution board 11 may be provided only at one end, and in this case, the width of the distribution board 11 can be made smaller.

Although the first conductive bar 51 is a neutral pole and the second and third conductive bars 52, 53 are voltage poles, the middle one of the three sheets supported in an overlapped state is used. The second conductive bar 52 may be a neutral pole and the first and third conductive bars 51 and 53 may be voltage poles.

[0060]

According to the distribution board of the first aspect, the first connecting portion is provided at the end of the first conductive bar, and the second connecting portion is provided at one side of the end of the second conductive bar. Since the third projecting portion is provided, and the third connecting portion is provided on the other side of the end portion of the third conductive bar, the first to third conductive bars are arranged so as to be spaced apart from each other and overlap each other. The first to third connection portions can be secured without lengthening the end portions of the first to third conductive bars, and the width dimension corresponding to the longitudinal direction of the first to third conductive bars can be reduced.

According to the distribution board of claim 2, claim 1
In addition to the effect of the distribution board described above, the first connection part is provided at both ends of the first conductive bar, and the second and third connection parts are provided at both ends of the second and third conductive bars. Since the first to third conductive bars have the first to third connecting portions at both ends, the first to third conductive bars do not have to be long to form the first to third conductive bars. It is possible to secure the third to third connecting portions, and it is possible to reduce the width dimension corresponding to the longitudinal direction of the first to third conductive bars.

According to the distribution board of claim 3, claim 1
Alternatively, in addition to the effect of the distribution board described in 2, the center part of the end support is formed so as to project toward one side and the other side, and the first support of the first conductive bar is formed in the center of the end support. A first supporting portion for supporting the first connecting portion, and a second supporting portion for supporting the second and third connecting portions of the second and third conductive bars on one side and the other side of the end supporting body. Since the third support portion is provided, the creepage distance between each of the first to third connection portions can be secured, and the insulation performance can be improved.

According to the distribution board of claim 4, claim 3
In addition to the effect of the distribution board described above, the second connecting portion of the second conductive bar is bent and protruded to the side facing the third conductive bar, and the third connecting bar of the third conductive bar is provided. Since the connecting portion is bent and protruded on the side opposite to the second conductive bar, the second and third connecting portions are provided on the same plane position of the end supporting body. Can be placed on the support part of the.

According to the distribution board of claim 5, claim 1
In addition to the effect of the distribution board described in any one of
And the third conductive bar are formed in the same shape,
Since the third conductive bar and the third conductive bar are spaced apart from each other and overlap with each other in the opposite direction, the second and third conductive bars can be shared.

According to the distribution board of claim 6, claim 1
In addition to the effect of the distribution board according to any one of 5 to 5, since the intermediate portion of the first to third conductive bars is held by the intermediate support, the interval between the first to third conductive bars is held, The branch breaker can be connected securely.

According to the distribution board of claim 7, claim 6
In addition to the effect of the distribution board described above, a cover that holds the distance between the first conductive bar and the second conductive bar, and a holding member that holds the distance between the second conductive bar and the third conductive bar Since the intermediate portions of the first to third conductive bars are sandwiched and held between and, the distance between the first to third conductive bars can be easily maintained and the distance can be reliably maintained.

[Brief description of drawings]

FIG. 1 is a front view of an exploded state of a conductive bar group and an end support of a distribution board according to an embodiment of the present invention.

FIG. 2 is a front view of the above distribution board.

FIG. 3 is a cross-sectional view of a conductive bar group and an end support of the distribution board.

FIG. 4 is a side view showing a conductive bar group, an end support and an intermediate support of the distribution board, which are partially cut away.

FIG. 5 is a side view in which a branch breaker, a conductive bar group and an intermediate support member of the distribution board are cut away.

[Explanation of symbols]

11 distribution board 16 Master breaker 17-branch breaker 45 Conductive bar group 46,47 Edge support 48 Intermediate support 51 First conductive bar 52 Second conductive bar 53 Third conductive bar 55 First connection 62 Second connection 69 Third connection 84 First support 85 Second support 86 Third support 92 cover 93 Holding member

Claims (7)

[Claims] 1. A first conductive bar having a first connecting portion provided at an end thereof, and a second conductive bar having a second connecting portion provided at one side of the end portion.
Of conductive bars, and a conductive bar group having a third conductive bar having a third connecting portion projecting from the other end of the conductive bar group; An end support for arranging the bars in a state of being separated from each other and stacked; a main breaker connected to an end of the conductive bar group; and a branch breaker connected to the middle of the conductive bar group. A distribution board characterized by that. 2. The first conductive bar is provided with a first connecting portion at both ends thereof, and the second conductive bar is provided with a second connecting portion at one side of both end portions thereof, and has a substantially U-shape. The distribution board according to claim 1, wherein the third conductive bar is formed in a substantially U-shape with the third connecting portion provided on the other side of both ends. 3. The end supporting member has a central portion projectingly formed on one side and the other side, and a first supporting portion for supporting the first connecting portion of the first conductive bar is formed on the central portion. A second supporting portion for supporting the second connecting portion of the second conductive bar is provided on one side, and a third supporting portion for supporting the third connecting portion of the third conductive bar on the other side. The distribution board according to claim 1 or 2, further comprising: 4. The second and third support parts of the end support are provided in the same plane position, and the second connection part of the second conductive bar is bent to the side facing the third conductive bar. 4. The distribution board according to claim 3, wherein the third connection portion of the third conductive bar is bent and projected to the side facing the second conductive bar. . 5. The power distribution according to claim 1, wherein the second and third conductive bars have the same shape and are arranged so that the overlapping and separating directions are opposite to each other. Board. 6. The distribution board according to claim 1, further comprising an intermediate support body that holds an intermediate portion of the first to third conductive bars. 7. The intermediate support includes a cover for holding a space between the first conductive bar and the second conductive bar, and a holding member for holding a space between the second conductive bar and the third conductive bar. 7. The distribution board according to claim 6, further comprising: an intermediate portion of the first to third conductive bars sandwiched between the cover and the holding member to hold the intermediate bars.