JPS585351Y2 - Conductor connection structure of power distribution track - Google Patents

Description

[Detailed description of the invention] The present invention relates to a power distribution track in which a rod-shaped conductor of a certain length is wired in a duct having an opening for installing a plug, and in particular, a rod-shaped conductor wired in a duct. Concerning improvements in conductor connections.

Generally, the power distribution track is a metal cylindrical duct 40 having an opening Ph for plug attachment on the lower side, as shown in Fig. 3.
Insert the rod-shaped conductor 10R, 108°10T into the grooved insulator 3.
0, the current collecting conductor of the plug (not shown) inserted through the opening Ph is connected to conductors 10R and 10S.
, branch connections can be made by contacting and energizing 10T, but the rod-shaped conductors and ducts are rigid, so they must be of a fixed length, so in order to lengthen the length and install it, multiple unit length power distribution is required. It is necessary to connect the tracks and connect the duct and bar conductor together at each end.

For this purpose, special metal fittings have traditionally been used for connection, but when using a metal fitting, there are many cases where it is difficult to work depending on the location, and an improvement has been desired.

Conventionally, measures have been taken to improve the connection, and in particular, a plug-in connection type with a male and female structure has been adopted between the ends of the conductors to be connected, thereby achieving one-touch connection.

Fig. 4 shows an example of the plug-in connection part for rod-shaped conductors that was used, in which one half of the short tubular conductor 3 is inserted into the end i of one of the rod-shaped conductors 1 to be connected. Attach the rod-shaped conductor 2 by tightening it and attach it to the other end of the rod-shaped conductor 2 to be connected.Pin-plug type contact conductor with a groove on one end: 4
A short tubular conductor (sleeve) ``5'' is inserted into the short tubular conductor (sleeve) ``5'' and connected by caulking. By inserting it into the tubular conductor 3, both conductors are inserted and connected from the longitudinal direction.

Such a connection structure has the advantage that the connection work can be done by simply inserting it without taking up much space, but for this purpose, the number of connection pieces between conductors 1 and 2 that need to be connected is minimum. 3 are required, requiring a large number of connecting parts, and in addition, the ends of each conductor 1 and 2 and the tubular conductor 3
, 5 tubular conductor 5 and contact conductor 4, and contact conductor 4 and tubular conductor 3, forming a total of four connections and contact parts, and even if consideration is given to sufficiently reducing the contact resistance of each connection part, the connection This has the disadvantage that the contact resistance of the entire section may become large.

In view of the current situation, the present invention provides an improved conductor connection structure for power distribution tracks that takes advantage of the usefulness of the plug-in connection, significantly reduces the number of parts, and sufficiently reduces contact resistance. Its gist is that it is a rod-shaped conductor of a certain length, and one end of the rod-shaped conductor (a short tubular conductor is inserted and attached to it up to half the length of the rod-shaped conductor). At the other end, a conductor branch part formed by dividing the end itself by slit processing is expanded and protruded,
This conductor connection structure for a power distribution track is characterized in that rod-shaped conductors to be connected are connected to each other by inserting their expanded and protruding conductor branches into the tubular conductor and elastically compressing them.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

In FIG. 1, reference numerals 10 and 20 indicate bar-shaped conductors made of copper or copper alloy of a certain length to be connected to each other, each having the same end structure.

That is, to describe this with respect to the rod-shaped conductor 10, a short tubular conductor 13 made of copper or copper alloy is inserted into one end 12 of the rod-shaped conductor 10 to a length Ll that is half of its total length. Caulk from the row circumferential surface P7. P2 and is electrically and mechanically integrated and installed on the conductor end 12, and a fitting hole H is set by protruding half the length L2 of the tubular conductor 13 in front of the end surface E2 of the conductor end 12. It is.

At the other end 14 of the rod-shaped conductor 10,
The conductor branch portion 11 is formed by dividing the end 14 by slitting a predetermined length of 12 minutes in the length direction from the end surface E1.
11, and its conductor branch portions 11.11 are expanded so that their tips protrude in a row.

The rod-shaped conductor 10 with the tubular conductor 13 attached to one end and the conductor branches 11, 11 expanded and protruded from the other end is connected to the other rod-shaped conductor 20 having the same end structure as the conductor 10. , with respect to the tubular conductor 13 attached to one end of one rod-shaped conductor 10, a slit processing TS' is performed on one end of the other rod-shaped conductor 20 to expand and protrude the conductor branch portion 21.2.
1, and insert the conductor branch 21.21 into the fitting hole H of the tubular conductor 13 until its end surface E'1 abuts the end surface E2 of the rod-shaped conductor 10.
are elastically compression-fitted into the inner surface of the fitting hole H of the tubular conductor 13 and are in contact with each other.

Such conductor branches 11.11 and 2121 are connected to the tubular conductor 13.
It is preferable to set the length L2 to correspond to the depth L2 of the fitting hole H of the conductor branches 11.11.21.
21 into the fitting hole H of the tubular conductor 13, the conductor branches 11, 11°21.21 are contracted and deformed, and the elastic reaction force at the time of this deformation causes elastic suppressing contact with the tubular conductor 13. It will be fulfilled.

FIG. 2 shows an example of a power distribution track in which a plurality of rod-shaped conductors each having such a connection end are arranged in a duct 40.
R, 10S, and 10T are insulated and supported by grooved insulators 30 at predetermined intervals in the longitudinal direction, and the plugs are collected through plug mounting openings Ph (see Fig. 3) that are continuous in the longitudinal direction on one side of the duct 40. The wiring is exposed so that electrical conductors can contact it.

Each of the rod-shaped conductors 10R, IO8, and IOT has tubular conductors 13R2138 and 1 on the one end 41 side of the duct 40, respectively.
0T and the other end 42 of the same duct 40.
Conductor branch 11R, IIs on the side.

11T are aligned and arranged, and when connecting the duct 40 and other ducts, each rod-shaped conductor 10R2108, IO
T and each other rod-shaped conductor are connected to conductor branches 11R and 11, respectively.
By inserting and connecting S and 11T to the tubular conductors 13R and 13Ti all at once, the connection work can be accomplished by simply butt-connecting the ends of the ducts, and the conductor connection can be achieved literally with one touch.

As explained above, the present invention is to attach a short tubular conductor to one end of a rod-shaped conductor of a fixed length installed in a duct by inserting it up to half the length, while the opposite rod-shaped conductor At the conductor end, a slit is applied to the conductor end itself so that the divided conductor branch part is expanded and protruded, and the conductor branch part is attached to one end of the mating rod-shaped conductor to be connected. Since the conductor connection is made by inserting the conductor into an elastic compression fit, it is not only possible to achieve a one-touch connection by simply inserting the conductor, but also to connect the tubular conductor on one side and the other side as in the past. Compared to a system in which pin plug-shaped contact conductors are attached to each conductor end, the number of connecting parts between rod-shaped conductors to be connected is reduced to only one tubular conductor, which is greatly reduced, and the conductor branches are connected to the rod-shaped conductors themselves. Since the ends of the rods are formed by slitting, there are only two assembly contact surfaces between the rod-shaped conductors to be connected: the combination part of the tubular conductor and the rod-shaped conductor, and the insertion part of the tubular conductor and the conductor branch. As a result, the contact resistance can be reduced to a great extent, and the practical benefits of this type of power distribution track as a conductor connection are enormous.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing an example of the connection structure of the bar-shaped conductor for power distribution track according to the present invention, Fig. 2 is an explanatory diagram showing an example of a power distribution track constructed by incorporating the same bar-shaped conductor, and Fig. 3 is an explanatory diagram showing an example of the connection structure of the rod-shaped conductor for power distribution track of the present invention. FIG. 4 is an explanatory diagram showing an example of a conventional conductor connection structure of this type of power distribution track. 10.10Rj10S, 10Tj20... Rod-shaped conductor, 11.11R, I Is, I IT...
Conductor branch, 13.13R, 13S, 13T...
・Tubular conductor.

Claims (1)

[Scope of utility model registration request] It consists of a rod-shaped conductor consisting of four lengths, and one end of the rod-shaped conductor is fitted with a short tubular conductor that is inserted up to half the length; and the other end of the inner rod-shaped conductor is attached to the end itself. Surits '#'fj Spread and protrude the conductor branches formed by dividing with the mouth soil? A power distribution track characterized in that x'Q and frame rod conductors are connected to each other by inserting their expanded and protruding conductor branches into the tubular conductor and forming an elastic compression fit. conductor interconnection structure.