JPH034090Y2 - - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a distribution board.

Conventionally, when wiring from a main breaker to a branch breaker, if the wires were connected using ordinary electric wires, the wiring work was complicated, the connection relationships were unclear, and there was a possibility of incorrect wiring.

On the other hand, one end of the connecting bar arranged parallel to the installation plane of the main breaker and the branch breaker is connected to the load side terminal of the main breaker, and each connecting bar and the branch breaker are connected. (For example, Utility Model Publication No. 51-59831). Compared to the case where electric wires are used, this method has clearer connection relationships, easier wiring work, and almost no erroneous connections. However, this distribution board has the disadvantage that the connection bars are arranged parallel to the installation plane, making the distribution board large.

Furthermore, in contrast to this, as shown in FIGS. 13 to 19, the first connecting bar 14, the second connecting bar 1
If the connection bars 5 and 3 (not shown) are arranged perpendicularly to the installation plane on which the main breaker 6 and the branch breakers 7 are installed, the distribution board can be made smaller.

8 is a terminal block, and 18 and 20 are connection bars.

However, while the S-phase main transition bar 30 has a structure in which a band-shaped conductive plate is bent at a predetermined position as shown in FIGS. It has a step-bending structure, and the T-phase main transition bar 3
2 is a deformable plate having a substantially Z-shaped plane at predetermined positions 32a, 3.
2b, and both have complicated planar shapes, resulting in poor material yields and high costs.

Therefore, the purpose of this invention is to make wiring connections simple and clear, avoid erroneous connections, reduce the size, ensure mutual insulation of the main transition bars, and improve the material yield of the main transition bars. It is an object of the present invention to provide a distribution board that can be made low-cost.

An embodiment of this invention is shown in FIGS. 1 to 12. In other words, 1 is the outer box, 2 is the door, 3 is the inner lid,
4 is an internal device (FIG. 3), and the internal device 4 has a main breaker 6, a number of branch breakers 7, and a terminal block 8 arranged on frames 5a to 5e forming an installation plane. The main breaker 6 is the upper end 6 in FIG.
a has a three-pole power supply side terminal (not shown), and the lower end 6b has a three-pole first load-side terminal 9a, second load-side terminal 9b, and third load-side terminal 9c in order in the lateral direction. That is, they are arranged parallel to the installation plane, perpendicular to the direction in which the branch breakers 7 are arranged, and facing the branch breakers 7. The arrangement relationship between the main breaker 6 and the branch breakers 7 is such that the same number of branch breakers 7 are arranged vertically in two horizontal rows in front of or below the lower end 6b of the main breaker 6, and a bar space 10 is provided between the two horizontal rows. is forming. The power source terminal portion 7a and the load side terminal portion 7b of each branch breaker 7 are disposed on the same side and are oriented perpendicularly to the column direction, with the power source side terminal portion 7a facing the bar space 10 side.

The first load side terminal 9a of the main breaker 6, the second
The load side terminal 9b and the third load side terminal 9c are connected to the first main transition bar 1 of which the R phase is an example.
1. Second main transition bar 1 with S phase as an example
A third main transition bar 13 having the 2 and T phases as an example is connected to the main transition bar 13, respectively. The first main connecting bar 11 connects the first load-side terminal 9a and the end of the first connecting bar 14 at both ends, and bends the middle part of the strip-shaped conductive plate in the thickness direction. By bending it in the board width direction while
It is molded into a shape, specifically as shown in Figures 6 and 7.
As shown in the figure, one end 11a of the strip-shaped conductive plate is made narrow in order to connect it to the main breaker 6, and the other end is
bending along a first folding line 11b having an inclination of 100 degrees, and bending at a second folding line 11c parallel to the first folding line 11b on the other end side at a predetermined distance from the first folding line 11b, It is folded back at a substantially right angle in a direction away from the installation plane, and a connecting hole 11e is formed at the other end 11d. The second main transition bar 12 is a strip-shaped conductive plate that connects the second load side terminal 9b and the end of the second connection bar 15 in a substantially straight line, and is connected to the second connection bar 15. The width direction of the end part is inclined with respect to the installation plane, and specifically, as shown in FIGS. It is bent at a predetermined angle at a bending line 12b with a predetermined inclination, and then bent at a bending line 12c at the tip thereof.
to form a connecting hole 12e at the tip 12d by bending it in a direction substantially parallel to the one end 12a.
Incline the plane of with respect to the horizontal plane. The third main connecting bar 13 connects the third load-side terminal 9c and the end of the third connecting bar 16 at both ends, and bends the middle part of the strip-shaped conductive plate in the thickness direction. while bending it in the board width direction to form a substantially L-shape in plan view, and the end connected to the third connecting bar 16 is inclined with respect to the installation plane,
Specifically, as shown in FIGS. 10 to 12, a connection notch 13b is formed in one end 13a, and the end thereof is slightly bent downward at a right-angled bending line 13c.
Further, two-stage inclined bending curves 13d and 13e on the tip side
The tip 13 is bent at a right angle to the left when viewed from above and tilted downward with respect to the horizontal plane by being folded back approximately at right angles to the direction in which it approaches the installation plane.
A connecting hole 13g is formed in f, and the tip is disposed at a lower position with respect to the one end side.

The first main transition bar 11 to the third main transition bar 13 are hoops (rows) of rectangular band-shaped conductive plates.
It is punched out of the material and formed by bending as described above. The first main crossover bar 11 is connected to the first load side terminal 9 of the main breaker 6.
In a, the second main transition bar 12 is connected to the second load side terminal 9b, the third main transition bar 13 is connected to the third load side terminal 9c, and each other end 11
d, 12d, and 13f are arranged at predetermined intervals in the height direction due to dimensional relationships.
Also, the connecting holes 11e, 12e, 13g of the first main transition bar 11 to the third main transition bar 13
One end of a first connecting bar 14, a second connecting bar 15, and a third connecting bar 16 each having a band shape are connected by a connecting screw 17 to the bar space 10.
They are arranged in the height direction parallel to the line direction of each branch breaker 7, and are connected to the power supply side terminal portion 7a of each branch breaker 7 by connection bars 18-20. 21 is the screw.

As described above, the distribution board of this invention includes a plurality of branch breakers arranged in a row on an installation plane and having power supply side terminals provided on the same side, and a plurality of branch breakers arranged in a row on an installation plane and having power supply side terminals provided on the same side, and said branch breakers on one end side in the direction in which said plurality of branch breakers are lined up. A first load-side terminal, a second load-side terminal, and a third load-side terminal arranged on an installation plane and arranged in sequence in a direction parallel to the installation plane and perpendicular to the direction in which the branch breakers are lined up. a master breaker facing the branch breakers; and a master breaker that is arranged parallel to the arrangement direction of the branch breakers and the installation plane on the power supply side terminal side of the plurality of branch breakers, and is installed so as to approach the installation plane sequentially from the side farthest from the installation plane. a first connection bar and a second connection arranged in a direction perpendicular to the plane, the end of the center one substantially facing the second load side terminal, and connected to the power supply side terminal of the branch breaker, respectively; bar and a third connection bar, and the first load-side terminal and the end of the first connection bar are connected at both ends, and the middle part of the strip-shaped conductive plate is bent in the thickness direction. a first main transition bar formed into a substantially L-shape in plan view by bending it in the board width direction, and a belt-shaped strip that connects the second load-side terminal and the end of the second connection bar in a substantially straight line. a second main transition bar which is a conductive plate and whose end portion connected to the second connection bar is inclined in the width direction with respect to the installation plane; and the third load-side terminal and the third connection. The third conductive plate is connected to the end of the bar at both ends, and is formed into a substantially L-shape in plan view by bending the middle part of the band-shaped conductive plate in the thickness direction and in the width direction, and Since the third main transition bar is provided, the end portion of which connects to the connection bar is inclined with respect to the installation plane, the following effects can be obtained.

That is, since the first to third connection bars are arranged in a direction perpendicular to the installation plane of the main breaker and the branch breakers, the distribution board can be downsized. Further, the first to third connection bars connected to the branch breaker and the first to third load side terminals are connected by the first to third main transition bars. Because of this, compared to connecting the main breaker and branch breaker with normal electric wires, there is no erroneous connection, wiring work is easier, and the connection is clearer. The transition bar is arranged such that, when viewed from the longitudinal direction of the second main transition bar, the first main transition bar and the third main transition bar draw approximately semicircular arcs in the same rotational direction with the second main transition bar as the center. Since they are bent, mutual insulation can be ensured. Further, the first to third connecting bars are arranged in a direction perpendicular to the installation plane, and the second main connecting bar and the third connecting bar are connected to the second connecting bar and the third connecting bar. Since the connecting bar side end of the main connecting bar No. 3 is inclined in the width direction of the second connecting bar and the third connecting bar, the connecting work can be easily performed without the first connecting bar getting in the way. be able to. In addition, since the first to third main transition bars can be formed from band-shaped conductive plates, they can be easily made from hoop material by bending, resulting in less material loss and savings compared to conventional methods. It becomes a resource and the material yield improves,
It also reduces bar processing costs including molds.

[Brief explanation of the drawing]

Figure 1 is a perspective view of an embodiment of this invention, Figure 2 is a perspective view of the door in its open state, Figure 3 is a front view of the internal device, Figure 4 is its left side view, and Figure 5 is its bottom view. Figure 6 is a front view of the first main transition bar, Figure 7 is a bottom view thereof, Figure 8 is a front view of the second main transition bar, Figure 9 is a bottom view thereof, and Figure 10 is a front view of the first main transition bar. A front view of the third main transition bar, FIG. 11 is a right side view thereof, FIG. 12 is a bottom view, FIG. 13 is a partial front view of the internal unit of the conventional example, and FIG. 14 is the S-phase main transition bar. 15 is a bottom view thereof, FIG. 16 is a front view of the R phase main transition bar, FIG. 17 is a bottom view thereof, FIG. 18 is a front view of the T phase main transition bar,
FIG. 19 is a bottom view thereof. 5a to 5e...frames forming installation planes;
6...Main breaker, 7...Branch breaker, 7a
...power side terminal section, 9a...first load side terminal,
9b...Second load side terminal, 9c...Third load side terminal, 11...First main transition bar, 12...
...Second main transition bar, 13...Third main transition bar, 14...First connection bar, 15...Second connection bar, 16...Third connection bar.

Claims (1)

[Claims for Utility Model Registration] A plurality of branch breakers arranged in a row on an installation plane and having power supply side terminals provided on the same side, and arranged on the installation plane at one end side in the direction in which the plurality of branch breakers are lined up. first load-side terminals, second load-side terminals, and third load-side terminals that are parallel to the installation plane and arranged in sequence in a direction perpendicular to the arrangement direction of the branch breakers, and are directed toward the branch breakers. a main breaker, and a direction perpendicular to the installation plane that is arranged parallel to the arrangement direction of the branch breakers and the installation plane on the power supply side terminal side of the plurality of branch breakers, and approaches the installation plane sequentially from the side farthest from the installation plane. A first connecting bar, a second connecting bar, and a third connecting bar are arranged in parallel with each other, and the ends of the central ones substantially face the second load-side terminal, and are respectively connected to the power-supply side terminal of the branch breaker. A connecting bar connects the first load-side terminal and the end of the first connecting bar at both ends, and the connecting bar connects the first load-side terminal and the end of the first connecting bar at both ends, and bends the middle part of the strip-shaped conductive plate in the thickness direction and bends the middle part of the strip in the width direction. a first main transition bar formed into a substantially L shape in plan view by bending, and a band-shaped conductive plate that connects the second load-side terminal and the end of the second connection bar in a substantially straight line; a second main transition bar whose end connected to the second connection bar is inclined in the width direction with respect to the installation plane; the third load-side terminal and the end of the third connection bar; are connected at both ends, the middle part of the strip-shaped conductive plate is bent in the plate width direction while being bent in the plate thickness direction to form a substantially L-shape in plan view, and connected to the third connection bar. A distribution board comprising: a third main transition bar whose end portion is inclined with respect to the installation plane.