JP4466935B2 - Distribution board charging section - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a charging part of a distribution board configured by housing electrical devices such as a main breaker and a branch breaker in a box and connecting the electrical devices with a wide copper bar.
[0002]
[Prior art]
As shown in FIG. 6, the charging part of the distribution board in the prior art has arranged all three phases of the main bar 31 with the wide surface of the copper bar parallel to the back plate 32 of the box. Alternatively, as shown in FIG. 7, the R-phase copper bar 33 and the T-phase copper bar 34 connected to the branch breaker are arranged on the same plane, and the bar surface is arranged substantially parallel to the box back plate 35. At the same time, the S-phase copper bar 36 is erected at a position higher than the R-phase copper bar 33 and the T-phase copper bar 34 with respect to the back plate 35 of the box, and the bar surface is set substantially perpendicular to the back plate 35 of the box. There was something that was configured. Alternatively, as shown in FIG. 8, a foot 39 and a switching plate 40 for supplying a voltage to the branch breaker 38 are screwed to the S-phase copper bar 37, and the R-phase copper bar 41 and the T-phase copper. Similarly, the bar 42 is provided with feet 43 and 44 for supplying a voltage to the branch breaker 38, and the R phase copper bar 33 and the T phase copper bar 34 are provided with feet 47 and 46 having screw ends 45 and 46, respectively. 48 is extended, and the switching plate 40 is changed from the S-phase copper bar 36 to the screwed ends 45, 46 of the R-phase copper bar 33 or the T-phase copper bar 34 to change the supply voltage to the branch breaker 38. There was also a thing to change.
[0003]
[Problems to be solved by the invention]
However, in the charging part of the distribution board in the above prior art, a large space is required between the branch breakers facing each other in the arrangement of the main bar, and the weight of the distribution board also increases due to the enlargement of the box. There was a drawback. Moreover, the connection space on the branch secondary side is reduced, and the workability is deteriorated. In addition, as shown in the expanded view of the copper bar shown in FIGS. 9 to 10, the connection bar is extended to the main bar for connection to the breaker, and further, the connection part for switching 200V is formed integrally. There is a disadvantage that the bar portion becomes longer, the portion A where the material is cut off increases, and waste increases.
[0004]
[Means for Solving the Problems]
Therefore, the present invention aims to provide a low-cost distribution board that can be labor-saving and simplified in construction, and has a structure in which a charging unit support base formed of an insulating material is provided on the back of the box. Mounting and charging part support base is provided with a holding part consisting of a protrusion and a holder, and the copper bar of the voltage phase among the copper bars is clamped vertically between the protrusion and the holder with respect to the back of the box The neutral phase copper bar is positioned above the voltage phase copper bar, and the wide surface is disposed in parallel to the back surface of the box, and the voltage phase copper bar is placed on the respective voltage phase side. The connecting copper bar connected to the branch breaker to be placed is bent in parallel to the back of the box and formed integrally, and the neutral copper bar can be connected to the connecting copper bar according to the voltage , The connection copper bar is provided with a screw hole for connecting the voltage switching copper bar.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
The charging part of the distribution board according to the present invention is configured such that the R phase and the T phase, which are the voltage phases of the main bar, are perpendicular to the back of the box on a support base formed of an insulating material attached to the back of the box. The S phase, which is a neutral phase, is arranged parallel to the back surface of the box. Each main bar is extended with a connecting copper bar for connection to the breaker. When using at 100V, a breaker is further connected to the connection part for 100V provided in the connection copper bar.
[0006]
【Example】
An embodiment of a charging part of a distribution board according to the present invention will be described with reference to the accompanying drawings of FIGS.
[0007]
The distribution board 1 is configured by housing electrical devices such as a main breaker 2 and a branch breaker 3 in a box 4 and connecting these electrical devices with a wide copper bar. The charging part of the distribution board is supported by the charging part support 5 made of an insulating material. The charging unit support 5 is provided with a holding unit including a protrusion 6 and a holding body 7. The voltage phase R-phase and T-phase copper bars 8 and 9 are sandwiched between the protrusions 6 and the holding body 7 with the wide surfaces perpendicular to the back surface 10 of the box 4. The S-phase copper bar 11, which is a neutral phase, has a wide surface parallel to the back surface 10 of the box 4.
[0008]
The connection copper bar 12 is extended to each of the R-phase and T-phase copper bars 8 and 9, and the connection copper bar 12 is bent toward the breakers 2 and 3.
[0009]
A plurality of screw holes 13 are provided in a substantially central portion of the S-phase copper bar 10, and the 100V copper bar 14 is screwed. The connection copper bar 12 is provided with a screw hole 15, and when switching the voltage from 100 V to 200 V, the 200 V copper bar 16 is screwed to the connection copper bar 12.
[0010]
R-phase and T-phase copper bars 8 and 9 are arranged with a wide surface perpendicular to the back surface 10 of the box 4 and no connection section dedicated to 200V is provided. By connecting the copper bar 16 and switching the voltage, the distance between the R phase and the T phase can be shortened, so that the width B of the material can be reduced, and the portion C that is cut off is reduced, thereby reducing waste.
[0011]
The charging part of the distribution board according to the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the gist of the present invention.
[0012]
【The invention's effect】
As described above, the charging unit of the distribution board according to the present invention has a charging unit support base made of an insulating material attached to the back surface of the box, and the charging unit support base includes a protrusion and a holding body. The copper bar of the voltage phase among the copper bars is arranged so as to be sandwiched between the protrusion and the holder perpendicularly to the back surface of the box, and the copper bar of the neutral phase is A wide surface is arranged in parallel with the back surface of the box body at a position above, and the copper bars for the voltage phase are connected to the branch breakers arranged on the respective voltage phase side with respect to the back surface of the box body. Since the copper bars of the neutral phase can be attached to the neutral copper bars, the connection copper bars can be attached according to the voltage. Because the charging part of the distribution board can be accommodated extremely compactly, the secondary side connection of the branch breaker Pace taken wide, it is possible to save labor of construction, the simplification achieved. Moreover, since the overall width of the distribution board can be narrowed, it is possible to save weight and save space, and it is easy to construct. The cost can be reduced by downsizing the box. Furthermore, since the development size of the main bar is small, the material cost can be greatly reduced, and the cost can also be reduced in this respect. Since the copper bar is supported by the insulating material, a safe distribution board can be provided without occurrence of a short circuit accident or the like.
[Brief description of the drawings]
FIG. 1 is a front view showing a charging part of a distribution board according to the present invention.
FIG. 2 is a cross-sectional view showing a charging part of a distribution board according to the present invention.
FIG. 3 is an enlarged sectional view showing a charging part of the distribution board according to the present invention.
FIG. 4 is a perspective view showing a copper bar of a charging part of a distribution board according to the present invention.
FIG. 5 is a development view of the copper bar in FIG. 4;
FIG. 6 is an explanatory view showing a charging part of a distribution board in the prior art.
FIG. 7 is an explanatory view showing a charging part of a distribution board in the prior art.
FIG. 8 is an explanatory view showing a charging part of a distribution board in the prior art.
FIG. 9 is a development view of the copper bar in FIG. 7;
10 is a development view of the copper bar in FIG. 8. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Distribution board 2 Main breaker 3 Branch breaker 4 Box 5 Charging part support stand 6 Projection body 7 Holding body 8 R phase copper bar 9 T phase copper bar 10 Back surface 11 S phase copper bar 12 Connection copper bar 13 100V Copper bar 14 screw hole 15 200V copper bar 16 screw hole

Claims (1)

In a single-phase three-wire distribution board, a charging part of the distribution board having a plurality of branch breakers capable of arbitrarily switching between a 100 V voltage and a 200 V voltage, is formed of an insulating material on the back of the box A charging unit support is attached, and the charging unit support is provided with a holding unit composed of a protrusion and a holding body, and the voltage phase copper bar of the copper bars is formed by the protrusion and the holding body. The neutral phase copper bar is disposed at a position above the voltage phase copper bar in parallel with the rear surface of the box body, The phase copper bars are formed integrally by bending a connecting copper bar connected to a branch breaker arranged on each voltage phase side in parallel to the back surface of the box, and the neutral phase copper bar. attachable to the connection copper bars to match the voltage, voltage switch to the connection copper bars Charging portion of the distribution board, characterized in that a screw hole for connecting the bar.

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