JPH0746002Y2 - Distribution board - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a distribution board, and more particularly to improvement of a wiring structure between an earth leakage breaker in a distribution board case and a plurality of branch breakers.

[0002]

2. Description of the Related Art In this type of distribution board, as shown in FIG. 5, an earth leakage breaker 5 connected to a power supply connection wire 4 in a distribution board case 1 and a plurality of branch breakers arranged in two rows. 6 is housed and fixed, and the load side terminal of the earth leakage breaker 5 and the power supply terminal of the branch breaker 6 are electrically connected as three-phase three-wire system through three power supply busses 9, 10, 11. The branch voltage of the branch breaker 6 is, for example, 100V.
Or branch breaker 6 so that it can be switched to 200V
One of the power supply terminals is connected to one of the bus bars 9, 10 and 11 and the other power supply terminal is selected and connected from the other two of the bus bars 9, 10, and 11.

The busbars 9, 10 and 11 are generally divided into a crossover portion connected to the load side terminal of the earth leakage breaker 5 and a power supply line portion connected to the power supply terminal of the branch breaker 6. . And in the conventional distribution board, as shown in FIG.
As shown in FIG.
2, 103 are used, and insulated wires 101, 102,
Each one end side copper wire 101a, 102a, 103a of 103 is screw-connected to the power supply line portions 9B, 10B, 11B, respectively, and these insulated wires 101, 102, 103 are arranged along the side surface of the earth leakage breaker 5, and each other end Side copper wire 101b, 1
02b and 103b are load side terminals 104 of the earth leakage breaker 5.
The other end side copper wires 101b, 102b, 103b are connected to the load side terminals 104, 105, 106 with screws, respectively, after being bent so as to face A, 104B, 104C.

[0004]

However, according to the above-described conventional distribution board, the insulated wire 101, which serves as the connecting wire portion,
Since 102 and 103 are routed on the side of the earth leakage breaker 5, it is necessary to secure a large space therefor, which is an obstacle to downsizing, and the insulated wires 101, 102 and 103 are abnormal to each other. If they are bent close to each other, there is a risk of a short circuit between wires or the like. In addition, the insulated wires 101, 102,
A large amount of force is required for bending the wire 103 when it is drawn around, and the variation in the bending position is large. Therefore, the other end side copper wires 101b, 101b of the insulated wires 101, 102, 103,
102b and 103b are the load side terminals 10 of the earth leakage breaker 3.
Connecting to 4A, 104B, and 104C is a complicated task. Furthermore, if the insulated wires 101, 102, 103 are not easily identified by color coding or the like prior to the connection work, incorrect wiring may be caused.

The present invention has been made in order to solve the above-mentioned conventional problems. A large space for arranging the connecting wire portion is not required, and the device can be made compact. Further, there is no fear of a short-circuit accident, and connection is possible. The purpose is to provide a distribution board that enables easy work.

[0006]

Means for Solving the Problems In order to achieve the above object, according to the present invention, a load of an earth leakage breaker 5 housed and fixed in a distribution board case 1 is indicated by a reference numeral in the drawing. Side terminals 12A, 12B, 12C and a plurality of branch breakers 6
A plurality of power supply busbars 9, 14
Electrically connected through 10, 11 and these busbars 9, 1
0 and 11 are crossover parts 9A, 10A on the leakage breaker 5 side,
11A and feeder lines 9B, 10B, 11 on the side of the branch breaker
In the distribution board configured by being divided into B and
A, 10A and 11A are respectively made of strip-shaped conductors, and one end side of these crossover portions 9A, 10A and 11A is left, and the earth leakage breaker 5 and the distribution board case 1 are left.
Base 1 for mounting the earth leakage breaker arranged on the bottom wall 1a of the vehicle
9 are arranged in parallel with each other at a predetermined distance in the plane direction, and the other end portions 9 of the connecting wire portions 9A, 10A, 11A are provided.
b, 10b, 11b are the load-side outer surface 5 of the earth leakage breaker 5.
It is bent in a rising shape along a and is horizontally bent inward as connection piece portions 9c, 10c, 11c which are superposed by inserting each tip side into the load side terminals 12A, 12B, 12C of the earth leakage breaker 5. In addition, the base 19 is a power distribution
It is formed separately from the board case 1 and the above-mentioned crossover
Insulating rib 21 located between line parts 9A, 10A, 11A
In addition to being provided integrally, the crossover parts 9A, 10A,
An insulating standing wall 23 covering the rising portions 9b, 10b, 11c of the other end side of 11A from the outside is integrally formed at one end of the base 19.
The formed structure is adopted.

[0007]

According to the structure of the present invention, a plurality of connecting wire portions 9A,
The respective one end portions 9a, 10a, 11a of 10A, 11A are respectively connected to the power supply line portions 9B, 10B, 11B, and the other end side connecting piece portions 9c, 10 of the crossover wire portions 9A, 10A, 11A are connected.
c and 11c are load side terminals 12A and 12 of the earth leakage breaker 3.
If they are respectively connected to B and 12C, a power feeding path from the earth leakage breaker 3 to the branch breaker 4 is constructed. In this case, since the crossover portions 9A, 10A and 11A are made of strip-shaped conductors and are arranged between the earth leakage breaker 3 and the bottom wall 1a of the distribution board case 1, the vicinity of the earth leakage breaker 3 is formed. It is not necessary to secure a large wiring space and it is easy to promote compactness. Further, since the connecting wire portions 9A, 10A, 11A are arranged in parallel in the plane direction at a predetermined interval from each other, and the other end rising portions 9b, 10b, 11b are also covered with the insulating standing wall 23, the connecting wire portions 9A, The risk of a short circuit between 10A and 11A is eliminated. Also, each pass
Leakage breaker located between the wire lines 9A, 10A, 11A
An insulating rib 21 is integrally provided on the mounting base 19.
Therefore, the parallel state of the crossover portions 9A, 10A, 11A
It is possible to ensure that the
The attachment base 19 is formed separately from the distribution board case 1.
Therefore, the distribution board case 1 is shared, and the leakage
The crossover parts 9A, 10A, 1 corresponding to the marker 5 and its capacity
When positioning 1A, change the dimensions of the base 19 above.
It is economical because it can be easily dealt with just by getting it. Also above
The insulating standing wall 23 is integrally formed at one end of the base 19.
As described above, the leakage breaker 5 and its
Use crossover parts 9A, 10A, 11A corresponding to the capacity of
If you want to use
it can. Further, since the tips of the rising portions 9b, 10b, 11b of the other ends of the connecting wire portions 9A, 10A, 11A are horizontally bent inward to form the connecting piece portions 9c, 10c, 11c, the connection is made. The pieces 9c, 10c, 11c can be easily inserted into the overlapping positions of the load-side terminals 12A, 12B, 12C of the earth leakage breaker 5, and therefore connection work can be performed easily without causing wiring mistakes. .

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 and 2 are an external perspective view showing a distribution board according to an embodiment of the present invention and a perspective view showing a distribution board case with a cover removed.

1 and 2, the distribution board case 1
Comprises a case body 2 made of synthetic resin and a cover 3 made of synthetic resin fitted in the case body 2 so as to be openable and closable therein, and a power source connecting wire 4 is connected to a power source side terminal (not shown) inside. The earth leakage breaker 5 and a plurality of branch breakers 6 arranged in two rows are stored and fixed. 7 is a locking projection formed on the rear side of the opening edge of the case body 2 and rotatably fitted on the rear side of the opening edge of the cover 3, and 8 is a front side of the opening edge of the case body 2. It is an engagement lock piece that is formed and engages with a front-side engaged portion (not shown) of the opening edge of the cover 3 in a disengageable manner.

FIG. 3 shows wirings on the side of the earth leakage breaker 5 and the side of the branch breaker 6, and in FIG.
0 and 11 are load side terminals 12 (12) of the earth leakage breaker 5.
A, 12B, 12C) and the pair of power supply terminals 13, 14 of the branch breaker 6, and the power supply busses 9, 10, 11 are crossover portions corresponding to the leakage breaker 5 side, respectively. 9A, 10A, 11A and branch breaker 6
It is configured by being divided into feeder lines 9B, 10B, 11B corresponding to the side.

The power supply line portions 9B, 10B, 11B are arranged between the two rows of the branch brakes 6, and the outer connecting terminal pieces 15 of the power supply line portions 9B, 11B on both outer sides are connected to one of the branch breakers 6. Connected to the power supply terminal 13 of the branch breaker 6 and the inner connection terminal pieces 16 of the power supply line portions 9B and 11B on both outer sides and the center power supply line portion 10B.
The branch voltage is, for example, 100 V or 200 V by selectively connecting the voltage switching metal fitting 17 connected to
It is configured to be switched to.

On the other hand, the crossover portions 9A, 10A, 11A
Are made of strip-shaped conductors, and their one ends 9a, 10a, 11a are electrically connected and fixed to the above-mentioned power supply line portions 9B, 10B, 11B by screws 18, respectively. The connecting wire portions 9A, 10A, 11A are set between the earth leakage breaker 5 and the bottom wall 1a of the distribution board case 1, leaving one end side thereof.

Specifically, as shown in FIG. 4, the earth leakage breaker 5 is positioned and held on the case body 2 by a base 19 made of an insulating synthetic resin, and the screw 2
The crossover portions 9A, 10A, 11A, which are fixed at 0 or the like and are made of the strip-shaped conductor, are formed in an L shape in plan view and are positioned in parallel with each other at a predetermined distance from each other and are positioned on the base 19. It is arranged. Reference numeral 21 is an insulating rib located between each of the connecting wire portions 9A, 10A and 11A and integrally formed on the base 19 along the longitudinal direction. The other end portions 9b, 10 of the crossover portions 9A, 10A, 11A
b and 11b are bent and formed in a rising shape along the load-side outer surface 5a of the earth leakage breaker 5, and their respective tip sides are the load side terminals 12A, 12B of the earth leakage breaker 5,
Connection piece 9 which is respectively inserted on 12C and polymerized
C, 10c, and 11c are horizontally bent inward, and these connecting piece portions 9c, 10c, and 11c are respectively connected to the load side terminals 12A, 12B, and 12C by screws 22.
It is designed to be connected and fixed to.

Reference numeral 23 is the crossover portion 9A, 10A, 11A.
Is an insulating standing wall that covers the rising portions 9b, 10b, and 11b from the outside, and is integrally formed at one end of the base 19 in the longitudinal direction. Reference numerals 24 and 25 denote terminal covers on the load side and the power source side of the earth leakage breaker 5, which are attached to the earth leakage breaker 5 by screws 26. In addition,
In FIG. 2, 27 is a cover that covers the feeder lines 9B, 10B, 11B.

In the above configuration, the load-side terminals 12A, 12B and 12C of the earth leakage breaker 5 are connected to the power supply buses 9, 10 and 10.
In order to connect the crossover wire portions 9A, 10A, 11A in 11, first, the respective end portions 9a, 10a, 11a of the crossover wire portions 9A, 10A, 11A are respectively connected to the power supply line portions 9B, 10A.
While connecting and fixing to B and 11B using screws 18, the crossover portions 9A, 10A and 11A are arranged at predetermined positions on the base 19 leaving one end side thereof. In this state, connect the earth leakage breaker 5 to the base 19 from the crossover portions 9A, 10A and 11A.
While being placed on the load side terminal 12A, the connecting piece portions 9c, 10c, 11c of the crossover portions 9A, 10A, 11A
12B and 12C are inserted and polymerized. And
The earth leakage breaker 5 is fixed to the case body 2 together with the base 19 by means of the screw 20, and the connecting piece portions 9c, 10c, 1
1c with screws 22 for load side terminals 12A, 12B, 12
Connect and fix to C respectively. As a result, between the load side terminals 12A, 12B, 12C of the earth leakage breaker 5 and the power supply terminals 13, 14 of the branch breaker 6 are the above-mentioned connecting wire portions 9A,
It is electrically connected via 10A, 11A and power supply line portions 9B, 10B, 11B.

Here, the crossover portions 9A, 10A, 11A of the power supply buses 9, 10, 11 from the earth leakage breaker 5 to the branch breaker 6 are made of strip-shaped conductors, respectively.
Leakage breaker 5 except for the ends 9a, 10a, 11a
By arranging it on the lower side, it is not necessary to secure a relatively large wiring space around the earth leakage breaker 5, and it is possible to make the whole compact, and also to connect the crossover portion 9A,
Since 10A and 11A are arranged in parallel with each other at a predetermined interval, occurrence of a short circuit accident between the crossover portions 9A, 10A and 11A is prevented. In addition, each crossover portion 9
Since the insulating rib 21 is integrally provided on the base 19 located between A, 10A and 11A, the crossover portions 9A and 1 are formed.
It is possible to reliably maintain the parallel state of 0A and 11A. Further, the crossover portions 9A, 10A, 11A are covered with the earth leakage breaker 5, and the rising portion 9b on the other end side,
Since 10b and 11b are covered with the insulating standing wall 23 from the outer side, the withstand voltage between other conductive members and the like is secured. Leakage
The base 19 for mounting the electric breaker is separate from the distribution board case 1.
Since it is formed in the
Crossover section 9 corresponding to different earth leakage breakers 5 and their capacities
When positioning A, 10A, 11A, the base
It is economical because it can be easily handled by changing the size of 19.
In addition, since the insulating standing wall 23 is formed integrally with the base 19, the earth leakage block having a different capacity as described above is provided.
The crossover parts 9A, 10A corresponding to the breaker 5 and its capacity,
Insulating wall with dimensions corresponding to 11A
23 can be used.

The crossover portions 9A, 10A, 11A are also provided.
Connecting piece portions 9c, 10 formed by raising the other end portions 9b, 10b, 11b of the
c and 11c are load side terminals 12A and 12 of the earth leakage breaker 5.
Since it is designed to be inserted over B and 12C, the work of connecting the crossover portions 9A, 10A and 11A and the earth leakage breaker 5 becomes easy, and in addition to the fact that they are maintained in the parallel state. Even if color coding is not performed, there is no risk of incorrect wiring.

[0018]

[0019]

As described in detail above, according to the present invention, the crossover portions of the plurality of power supply busbars between the earth leakage breaker and the branch breaker are made of strip-shaped conductors, respectively, and the earth leakage breaker and the electricity distribution are separated. Since they are arranged in parallel with the bottom wall of the board case, a large space on the side of the earth leakage breaker is not required, compactness can be achieved, and the possibility of short-circuiting between wires is eliminated. In addition , the other end of the crossover part is bent in a rising shape, and each tip side is horizontally bent inward as a connecting piece so as to be inserted into the load-side terminal of the earth leakage breaker for polymerization. Since the connecting work can be performed quickly without mistakes, and the rising end of the other end of the crossover part is also covered with the insulating standing wall, a pressure resistance with respect to other conductive members is secured. . Also, each pass
Insulated on the base for installing the earth leakage breaker located between the wire
Since the ribs are integrally formed, the above-mentioned crossover parts are arranged in parallel.
The state can be maintained reliably. Also this leakage breaker
The base for mounting is formed separately from the distribution board case
Therefore, the distribution board case is shared and the leakage breaker with different capacity is used.
When positioning the crossover part corresponding to the power
Can be easily handled by simply changing the dimensions of the base,
It is economical. Also, the insulating standing wall is attached to one end of the base.
As it is formed integrally, leakage currents with different capacities
When using a breaker or a crossover part corresponding to its capacity
It is possible to use the required size corresponding to
It

[Brief description of drawings]

FIG. 1 is an external perspective view showing a distribution board according to an embodiment of the present invention.

FIG. 2 is a perspective view showing the distribution board in the embodiment with the cover of the distribution board case removed.

FIG. 3 is a plan view of a main part of a distribution board in the example.

FIG. 4 is an exploded perspective view of a main part of a distribution board in the example.

FIG. 5 is a plan view conceptually showing connection between an earth leakage breaker and a branch breaker of a distribution board.

FIG. 6 is a perspective view showing a main part of a conventional distribution board.

[Explanation of symbols]

1 Distribution board case 1a Bottom wall of distribution board case 5 Leakage breaker 5a Load-side outer surface of leakage breaker 6 Branch breaker 9, 10, 11 Power supply busbar 9A, 10A, 11A Crossover section 9B, 10B, 11B Power supply line Part 9a, 10a, 11a One end of crossover part 9b, 10b, 11b Other end of crossover part Rise part 9c, 10c, 11c Connection piece part of crossover part 12A, 12B, 11C Load side terminal 13, 14 Feeding terminal 19 Base for installing earth leakage breaker 21 Insulation rib 23 Insulation wall

Claims (1)

[Scope of utility model registration request] 1. A load-side terminal of an earth leakage breaker housed and fixed in a distribution board case and each power supply terminal of a plurality of branch breakers are electrically connected via a plurality of power supply buses,
In these busbars the circuit breaker side of the crossover portion and the branch breakers side of the feed line portion and the distribution board that is configured to be divided into, as well as constituting the crossover portion of each strip conductor, this
Leaving one end side of each of these crossovers , the earth leakage breaker and the earth leakage breaker installed on the bottom wall of the distribution board case are removed.
Arranged in parallel with the attached base at a predetermined distance from each other in the plane direction, and fold the other ends of the crossover parts in a rising shape along the load-side outer surface of the earth leakage breaker. At the same time, each tip side is inserted into the load side terminal of the earth leakage breaker and bent horizontally inward as a connecting piece to be overlapped, and the base is formed separately from the distribution board case. ,That
Insulating ribs located between the above crossover parts are integrally formed on the upper surface.
At the same time, the insulating standing wall that covers the rising end of the other end of the crossover part from the outside is formed integrally with one end of this base.
A distribution board that is characterized by that.