JPS6120204B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a switchboard structure for making the cable duct of the switchboard wider.

The relay panels that have been commonly used in the past have been of the JEM type, which is self-standing on both sides, as shown in Figure 1. This is generally called a tunnel panel, and includes front and rear panels 1, side decorative panels 3, and ceiling panels 4.
and channel pace 5, the box body is formed.

A detailed exploded view of this is shown in FIG. The front and rear panels 1 are supported by a ceiling frame 2, and each side is covered by a side decorative panel 3 and a ceiling board 4.
Then, if necessary, panels are arranged in rows, but in the case of rows of panels, only the number of panels 1 and ceiling frames 2 are increased.
Also, of course, the number of channel base 5 increases by the number of rows.

Each of these boards is independent and can be disassembled freely. Therefore, each has a terminal block so that electrical connections can be made and disconnected, and each is functionally independent. FIG. 3 is a detailed view of the cross section taken along the line AA in FIG. 1. Each panel 1 has B as shown in the arrow.
It can be divided into C-row boards. A terminal auxiliary hardware 8 is attached to the L hardware 7 attached to the auxiliary hardware 6, and a terminal block 9 is further attached as shown in the figure. FIG. 4 is a top partial view of FIG. 3. In-board wiring 10 is connected to each terminal 9. External wiring (cable connection)
11 is connected to each terminal block 9 and bundled like 12.

In this case, the space formed between the rows of boards B and C forms a cable duct, but in such a case, it is inconvenient to connect the cables to each terminal with screws at the site. That is, the first factor is that the cable 11 near the panel 1 side is bundled with wire 12.
The work is difficult because it is hidden in the shadow and difficult to see. Second, since the terminal blocks 9 are lined up in many rows, the cable 11 becomes comb-like, and the deeper the terminals are, the more difficult it is to connect the cables, which can lead to incorrect connections and poor tightening of screws. It took a lot of effort and time to do so. In this way, the conventional relay panel was made up of a self-supporting double-sided tunnel panel made by JEM Type, and all cable handling work was done inside the panel, making the duct space narrow and inconvenient.

An object of the present invention is to solve these problems by providing a power distribution board that allows work to be performed both inside and outside the board and that allows for a larger cable duct space.

Conventional relay panels have single relays mounted vertically on the panel surface, but the present invention uses a horizontally elongated relay case 15 that houses a group of auxiliary relays. Its external view is shown in Fig. 5, and its details are shown in Fig. 6.

FIG. 6 shows the assembly elements of FIG. 5. A panel frame 13 is attached to the channel base 5 in the front and back, and a ceiling frame 14 is further placed on top of the panel frame 13 so as to cross it. The condition that must be met at this time is that the relationship dimensions be (panel frame 13<ceiling frame 14). In other words, the dimensions must be larger than the board frame width. FIG. 7 is a basic configuration diagram taken along the line D--D in FIG. 6.
Attach the screws to the horizontal relay case 13. Furthermore, the spacer cover 16 and the duct cover 17 are similarly attached to the panel frame 13 with screws.

Further, FIG. 8 is a detailed perspective view of the row board section B→←C in FIG. 5. The board frame 13 is bent as shown in the figure to increase the rigidity of the plate material. 18 is the duct space 19 inside the panel
20 is a hole for inserting the hand, that is, a working hole; 20 is a punching and bending hole that serves both as a board for mounting the terminal block 9 and a lead hole; 21 is a lead wire inside the panel; 22 is a cable connection;
23 is the lead wire coming out from the internal duct or relay,
24 is a lead wire that enters the ceiling frame 14, and is formed into a T-shaped structure to form a cable duct space 25 on the other side of the B panel and C panel configured as described above.

The horizontally elongated relay case 15 has terminals on the back side, and the lead wire 23 is connected to the inside of the panel duct space 1 via a wiring duct (not shown) behind the spacer cover 16 inside the panel.
9, pass through the bending hole 20, and insert the lead wire 2 inside the panel.
1 is screw-connected to the terminal block 9 and cable 22 is connected to the outside of the panel through a spacious cable duct space 25.

Cable connections at this time can be easily made from outside the panel by removing the duct cover 17, and from inside the panel on the passage side, making it easier to handle the cables inside the duct. In addition, by using the horizontally elongated relay case 15, the integration ratio of the relay elements contributes to making the upboard more compact.
The installation area of the panel can be reduced. A duct cover 17 is also installed inside the panel to improve organization and clearly separate cables and internal wiring.

Furthermore, it is very effective to apply not only to horizontally elongated relay cases but also to rack chassis that house modules and other units of regulators. Board frame 1
Shape 3 can be made into various shapes to increase rigidity. Holes 17 can be opened and closed in a fan-like manner, and holes 18 and 19 can be enlarged as continuous holes.

As described above, according to the present invention, it is possible to obtain a switchboard that can be modified on-site much more easily than before, and has improved safety and efficiency.

[Brief explanation of the drawing]

Figure 1 is an external view of a conventional double-sided self-standing power distribution board, Figure 2 is a detailed exploded partial external view of Figure 1, Figure 3 is an installation configuration diagram of a conventional terminal block, and Figure 4 is the terminal shown in Figure 3. A top view of the base mounting components, FIG. 5 is an example of the appearance of a board using the horizontally elongated relay case of the present invention, FIG. 6 is an external view of the components of FIG. 5, FIG. 7 is a basic view of the T-shaped configuration,
FIG. 8 is a detailed partial perspective view of FIG. 5. 1... Panel, 2... Ceiling frame, 3... Side decorative board, 4... Ceiling board, 5... Channel base, 6... Auxiliary hardware, 7... L hardware, 8... Terminal auxiliary hardware, 9 ...Terminal block, 10 ...Internal wiring, 1
1... Cable, 12... Bundled wire, 15... Relay case, 16... Spacing cover, 17... Duct cover.

Claims (1)

[Scope of Claims] 1. A power distribution board assembly in which a plurality of unit cases each containing a control device such as an auxiliary relay or a printed circuit board are installed in a row-by-side configuration, wherein the power distribution board includes a plurality of the unit cases. A panel frame for mounting, an in-panel duct space formed on both sides of this panel frame and having a working hole, a terminal block provided on the outside of this in-panel duct space, and a terminal block provided on the upper part of the panel frame. A power distribution board comprising a ceiling frame having a width larger than that of the power distribution board, and a cable duct space is formed by the panel frame and the ceiling frame of the power distribution board adjacent to each other when the power distribution board is arranged in a row-by-panel configuration. Aggregation.