JPH0360307A - Wiring apparatus for auxiliary relay panel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a wiring device for an auxiliary relay panel that draws terminals of electric wires out of a wiring duct and connects them to terminals of a socket for a relay.

[Conventional technology]

FIG. 3 is a side sectional view of a conventional example. A large number of horizontal wiring ducts 32 are arranged vertically at a pitch P and fixed to a mounting plate l in the panel. A rail 5 is also fixed to the mounting plate 1 at a position between the wiring ducts 32 to which a plurality of sockets 4 for mounting the relays 3 can be mounted horizontally at arbitrary intervals.

The wiring duct 32 includes a duct 1I32a on the front surface, openings 32b and 32c on the upper and lower surfaces for drawing out electric wires, and is made of metal or synthetic resin.

The bundle of electric wires 6, which is used as a wire harness, is inserted into the wiring duct 32, and the electric wire 6a equipped with the crimp-type terminal 7 and the incense stick tube 8 with the wire number displayed is pulled out from the openings 32b and 32c, and then passed through the duct 1f32. It is covered and connected to the terminal 4a of the socket 4 with a screw or the like.

A door (not shown) of the board (front door or back m) is provided on the right side of the figure.

[Problem to be solved by the invention]

The above-mentioned conventional technology has the following problems.

(a) Since the pitch P between the rows of wiring ducts and sockets cannot be made very large, the wires with terminals must be placed between the wiring duct and the rows of sockets and relays so that the wire numbers are not visible.
The upper and lower parts of a board with a height of, for example, 2300 mm are particularly difficult to see because they are in the shadow of the duct, making it difficult to check the wire numbers.

(b) The only way to improve inspection is to increase the pitch P of the sockets or to increase the adjustable horizontal spacing between the sockets on the rail. becomes larger.

(C) Due to the design of the wiring harness, it may occur that the wires in the wiring duct below one socket are connected to the terminals above that socket, from the end of the lower wiring duct to the end of the upper wiring duct. The only way to avoid this is to widen the horizontal distance between the sockets and take a short circuit between the sockets, which also reduces the number of relays that can be accommodated.

(d) When connecting the terminal of the electric wire to the terminal of the socket, the wiring duct gets in the way, making the connection work difficult.

An object of the present invention is to solve the problems (a) to (d) above, and to provide an auxiliary relay panel that facilitates wire number inspection and terminal connection work and improves the mounting density of relays. The purpose of the present invention is to provide a wiring device.

[Means to solve the problem]

In the wiring device for an auxiliary relay panel of the present invention, a rail for a socket for mounting a relay is fixed to the front part of a wiring duct whose back surface is fixed to a mounting plate and is provided with a duct II. An opening for drawing out electric wires is provided in the wiring duct at a certain position.

[Effect]

Since the socket equipped with the terminal is attached to the front part of the wiring duct via the rail, the wire number of the electric wire connected to the terminal of the socket can be easily seen and inspected without being in the shadow of the wiring duct.

Similarly, the terminal connection work is easy because the wiring duct does not get in the way, and the wires can be pulled out either from above or below the wiring duct, eliminating the need for so-called long detours of the wires.

Since there is no wiring duct between the sockets,
In other words, the mounting density of the relays is improved and the panel is made smaller. Note that the relay is placed closer to the front side (toward the door (not shown) on the right side of the figure) for the wiring duct, but the depth of the panel is generally not a problem even if it becomes a little larger. The height and width of the image are important, and this is advantageous because they can be made smaller.

〔Example〕

FIG. 1 is a side sectional view of the embodiment, and FIG. 2 is a perspective view of the wiring duct and rail of FIG. 1. Items with the same reference numerals as those in the conventional example have approximately the same functions.

In the figure, a large number of horizontal wiring ducts 12 are arranged vertically at a pitch P and fixed to a mounting plate 1 in a panel.

A rail 5 on which sockets 4 for attaching the relay 3 can be attached at arbitrary intervals in the horizontal direction is fixed to the front part of the wiring duct 12.

The wiring duct 12 has openings 12b and 12c for drawing out electric wires on the front and bottom surfaces. The openings 12b may be arranged one above the other on the same front surface.

The openings 12b and 12c may be left open from the beginning, but they may also be opened at arbitrary positions only when they are used, as in a so-called single press.

Single punching refers to joining only one or two of the peripheral edges that should be opened, and punching out the remaining metal edge by shearing about half the thickness of the plate.

The wiring duct and the rail may be integrated by hot extrusion of aluminum alloy.

〔Effect of the invention〕

In the wiring device for an auxiliary relay panel of the present invention, a rail for a socket for mounting a relay is fixed to the front part of a wiring duct whose back side is fixed to a mounting plate and is provided with a duct. Since the wiring duct is provided with an opening for drawing out the wires at the same position, the wire numbers of the wires connected to the terminals of the socket can be easily seen without being hidden by the wiring duct, and inspection work is facilitated.
Similarly, the terminal connection work is also advantageous in that workability is improved without being in the shadows, and in particular, the device density of relays is improved, the board surface is used effectively, and the board can be made smaller.

Another advantage is that the wiring duct and rail can be formed into one piece by extrusion molding.

[Brief explanation of drawings]

FIG. 1 is a side sectional view of the embodiment, FIG. 2 is a perspective view of the wiring duct and rail of FIG. 1, and FIG. 3 is a side sectional view of the conventional example. 1...Mounting plate, 3...Relay, 4...Socket,
4a...terminal, 5...rail, 6,6a...wire, 7...terminal, 8...wire number tube, 12.32.
・・Wiring duct I・, 12a, 32a-duct cover,
12b, 12c. 32b, 32C... opening. Front diagram

Claims (1)

[Claims] 1) A rail for a socket for installing a relay is fixed to the front part of the wiring duct whose back side is fixed to a mounting plate and is equipped with a duct cover, and a rail for a socket for installing a relay is fixed to the wiring duct at a position above and below this rail for drawing out electric wires to the wiring duct. A wiring device for an auxiliary relay panel, characterized by having an opening.