JPS6237369Y2 - - Google Patents

Description

[Detailed description of the invention] This invention makes the equipment configuration symmetrical, reduces the panel width, and further reduces the amount of conductors used by appropriately connecting the main power bus and multiple disconnectors. This relates to a distribution board that has been designed to allow for

The actual situation is that conventional distribution boards are constructed as shown in FIGS. 1a to 1c. As shown in the figure, a plurality of wiring shields and disconnectors (3×3=9 is shown in this example) 3 are appropriately installed on the front door 2 side of the disconnector panel 1, and these wiring Three-phase alternating current power is supplied to the disconnector 3 from the power supply main busbars 9 (9 ₁ to 9 ₃ ) arranged on the rear side of the panel. Conventionally, the connection between the power supply main bus 9 and the wiring sheath disconnector 3 was made using the conductor 1.
0, 12, 5, 4, 11. For example, the main busbar 9 fixed by a busbar presser 8
If ₁ is for U phase, main bus 9 ₁ is conductor 1
It is connected to the conductor 5 ₁ via 0 ₁ and 12 ₁ , and further connected to the wiring sheath disconnector 3 via the three conductors 4 ₁ branch-connected to the conductor 5 ₁ and the conductor 11 ₁ . It is something. The situation is similar for other phases. Therefore, the electrical and mechanical configuration of the conventional power supply main bus 9 and the wiring sheath disconnector 3 is as shown in FIG. That is, it has an E-shaped structure.
The cross-sectional area of the conductor 12 is large, and the main bus bar 10
The reason why the contact area is large is that it is not only necessary to reduce contact resistance and suppress heat generation, but also to ensure the necessary current capacity.

However, in the above configuration, since the conductor 5 is provided only on one side, it is impossible to make the configuration symmetrical on the left and right sides of the panel. The disadvantage is that the center of the board is shifted from the original center position of the board. In addition, it is not easy to pull out the wiring breaker secondary conductor 13,
Combined with the above drawbacks, not only is it impossible to reduce the panel width, but also the conductor 4 is unstable to be fixed, and the assembly and installation work within the panel is not easy. Note that reference numerals 6 and 7 are positioning and fixing mounting members (insulating) for the conductors 5 and 4, respectively.

An object of the present invention is to provide a distribution board with a configuration that allows symmetry of the configuration on the left and right sides of the board and reduction of the board width.

For this purpose, the present invention installs conductors not only on one side of the panel but on both sides of the panel, connects the main bus bar indirectly to these conductors, and connects the main bus bar between the conductors. The present invention is characterized by a configuration in which a required number of wiring wires and disconnectors are connected in parallel to each conductor.

The present invention will be explained below with reference to FIGS. 3 and 4.

Figures 3a to 3c each show a longitudinal side surface of an example of the distribution board according to the present invention, a surface related to the C-C line on the side surface, and a surface related to the D-D line on the surface related to the C-C line. It is something that As shown in the figure, a plurality of wiring shield disconnectors 103 appropriately attached to the front door 102 side of the shield disconnector panel 100 are arranged in parallel and power supply main bus lines 109 (109 ₁ to 10
9 ₃ ). The connection between the power supply main bus 109 and the wiring sheath disconnector 103 is through conductor 1.
10 (110 ₁ to 110 ₃ ), 112 (112 ₁
~112 ₃ ), 105 (105 ₁ ~105 ₃ ), 1
04 (104 ₁ to 104 ₃ ), 111 (111 ₁
111 ₃ ), but it is worth noting here that the corresponding conductors 105 ₁ conductor 105 ₃ are positioned on both sides of the panel by positioning fixed mounting members 106 , 1
These phase-corresponding conductors 105 ₁ to 105 ₃ are supported by conductors 112 ₁ to 11
2 ₃ to the conductors 110 ₁ to 110 ₃ . That is, the conductor 1 corresponding to the phase
Conductors 112 1 to ₁₁₂ are connected between 05 ₁ to 105 ₃ , respectively.
112 ₃ is connected, and the conductors 112 ₁ to 11
Since the conductors 110 1 to 110 ₃ are connected in the middle of each of the conductors 110 ₁ to 110 ₃ , the corresponding conductors 110
₁ to 110 ₃ electrically and mechanically connects the power supply main bus 109
₁ to ₁₀₉₃ . Fourth
The figure shows its electrical and mechanical configuration, and as you can see, there are conductors 105 on both sides of the board.
The conductor 10 is erected and connected between the conductors 105.
4 is connected in parallel with the wiring shield and disconnector 103, which not only stabilizes the combination of the entire conductor but also makes the entire configuration symmetrical. This makes it possible to align the center of the arrangement with the center of the board. Further, if the conductor 105 is arranged upright so that its surface is parallel to the side surface of the board as shown in FIGS. 3a to 3c, the width of the board can also be reduced. Furthermore, according to the present invention, a cutter or disconnection board can be constructed without unnecessary use of conductors. This is because when two conductors 5 ₁ to 5 ₃ are arranged in parallel as shown in Fig. 1 a to c, the desired current capacity cannot be secured due to the temperature conditions at the connection part. However, when the above-mentioned conductors are installed individually on the left and right sides of the panel as in the present invention, the temperature conditions at the connection parts are relaxed, and the desired overall current capacity can be easily secured. It is. In other words, if the present invention is used to ensure the same current capacity, wasteful use of conductors can be avoided. Furthermore, in the case of the present invention, not only is it easy to draw out the wiring line and the disconnector secondary conductor 113, but most of the constituent conductors can be assembled outside the panel, so the assembly work inside the panel is reduced. You can also obtain the following effects.

As explained above, in the present invention, conductors corresponding to the phases are installed on both sides of the panel with their surfaces parallel to the side surfaces, and these conductors corresponding to the phases are connected to the power main bus line through conductors installed between these conductors. At the same time, the required number of wiring shields and disconnectors are connected in parallel to the required number of conductors that are attached between the conductors corresponding to the phases. Therefore, according to the present invention, as described above, it is possible to make the entire structure symmetrical, stabilize the combination thereof, and reduce the panel width.

[Brief explanation of the drawing]

Figures 1 a to c are block diagrams of a power distribution board according to the prior art, Figure 2 is an electrical and mechanical diagram of the power distribution board, and Figures 3 a to c are respectively diagrams of a power distribution board according to the present invention. FIG. 4 is a diagram showing a longitudinal side surface of an example of the configuration of the panel, a surface related to the C-C line on the side surface, and a surface related to the D-D line on the surface related to the C-C line. FIG. 2 is an electrical and mechanical configuration diagram. 103... Wiring disconnector, 104 (104 ₁
~104 ₃ ), 105 (105 ₁ ~105 ₃ ), 1
10 (110 ₁ to 110 ₃ ), 111 (111 ₁
~111 ₃ ), 112 (112 ₁ ~112 ₃ )...
... Conductor, 109 (109 ₁ to 109 ₃ ) ... Power main bus.

Claims (1)

[Scope of utility model registration request] Phase-corresponding conductors are installed on both sides of the panel with their sides parallel to each other, and these phase-corresponding conductors are connected to the phase-corresponding power supply main bus through conductors installed between these conductors. A distribution board characterized in that, in addition to the above-mentioned conductors, a required number of conductors installed between phase-corresponding conductors are connected with a required number of wiring shields and disconnectors in parallel across the phases.