JPS5963916A - Bus duct connection device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a connection device for a noise duct.

The connection structure of the opposing conductors in a conventional three-phase conductor-type duct is such that the conductor 1 is connected to the conductor connector 2 by tightening it with a delt 3, as shown in FIG.

This structure had the disadvantage that it was necessary to tighten two bolts for each phase, and a total of six ports, making the connection work troublesome and time consuming.

SUMMARY OF THE INVENTION An object of the present invention is to provide a zeta duct connecting device that eliminates the drawbacks of the prior art described above and facilitates connection work.

The present invention will be explained in detail below with reference to the drawings.

FIG. 2 shows an outline of the path duct line.

- The duct line 4 is obtained by sequentially connecting the ends of a plurality of unitized path ducts 5 each having a standard length of, for example, 3 m, and each path duct 5 is connected to a long cylindrical duct 6 and an insulator inside this duct. Each duct 5 and each rod-shaped conductor 8 is provided with a rod-shaped conductor 8 which is insulated and supported by a body 7, and each duct 5 and each rod-shaped conductor 8 has an insulator 9 having a built-in conductor connector and a clamping fitting molded into one body between the ends thereof. An end feed-in 14 for power supply, which is sequentially electrically and mechanically connected by a coupling 12 consisting of two independent insulating pressing parts 10 and a support plate 11, and has a power supply terminal 13 at one of both ends of the line. ．． The remaining terminal has an end closer 15 for blocking the charging part.
are arranged to form the track. 16 is a lead cable for supplying electricity to the line.

Each unitized nose duct 5 allows plug-in for branch power supply to a load, as illustrated in FIG. That is, the duct 6 is formed into a long cylindrical shape with a U-shaped cross section using a steel plate or the like, and is provided with an opening 6a for plug-in that continues in the longitudinal direction.

On the other hand, the rod-shaped conductors 8 are arranged in the duct 6 using three bare copper conductors (for three phases) in a triangular arrangement.

The insulator 7 supporting the conductor 8 in the duct holds the conductor 8 at a distance so as not to prevent plug-in. It was configured like this. The plug-in to the 2nd duct is the current collector head PCO of the plug P, the current collector piece PCI +PO2, PC
3 to each conductor 8, and the hooking piece P of the plug P
TI and PT2 are engaged with the flanges 6b, , 6b, forming the opening 6a of the duct 6 to fix the entire plug P to the duct 6, and the current collector piece P O+ + P
The O2T'P C3 is kept in contact with the conductor 8. PBl and Pb0 are hanging pieces P T + +
p l112's operation Zetan and the final piece P '], "1+
The P'I 2 is always pointing outward and is pushed back to make it easier to pass through the duct opening 6a.

FIG. 4 shows a side view of the coupling 12 used for connecting the duct 6 and the conductor 8, and FIG. 5 shows a partial sectional view taken along line V--V. The ends of the duct 6 and conductor 8 to be connected are connected to three V-shaped connectors 9A, 9B' for connection.

The above-mentioned integrated insulator 9 with built-in 9G and conductor clamping fitting 1
0A, IOB, and 100 were molded together. ? 10 independent central insulating pressing parts, 2 pieces) l
This is done by inserting it into both sides of the coupling ring 12, which is made up of a lower support plate 11 and a lower support plate 11 having lats 1a and 11b. 6th
The figure is a top view of the middle insulating pressing part 10.

As shown in FIG.

When 11b is tightened, the support plate is expanded using the flanks 6b, , 6b, of the duct 6 as legs, so the parts 11b and 11b move upward, and the tip of the N bolt moves the pressing part 10 upward. is pushed up. on the other hand"
The insulator 9 with a built-in connector arranged in two parts is connected to the duct 6.
It is held down by the top surface of the Therefore, conductors 8A, 8B, 80
Connectors 9A, 9B, 90 and tightening fittings 10A, IO
B and '100 are sandwiched and tightened, and the support plate of the duct is pressed down by the pressure of the bolt, establishing the connection between the two ducts.

The two independent pressing parts 10 located in the center of the Cassilling ring 12 are divided into path ducts to be connected as shown in FIG.

10B and 10C have protruding shapes and are arranged in a triangle with respect to the three conductors, so that the tip of the N-root of the support plate is located at the center of gravity of the triangle. Therefore, by pushing up this outer center, the fastening metal fittings 10A and IOB.

10G becomes a tripod contact, and even if there is a deviation in the contact point due to deformation of the conductor or a manufacturing error of the insulator 9 pressing part io, the two poles of the support plate 11)
, llb to ensure a secure connection between the three conductors.

As mentioned above, according to the present invention, ``the number of bolts to be tightened can be reduced from the conventional six to two bolts, making construction work easier, and there is no need to forget to tighten bolts, ensuring reliable contact. will improve.

[Brief explanation of drawings]

FIG. 1 is a connection structure diagram of a conventional path duct, and FIG. 2 is a partial explanatory diagram showing a simplified 6-pass duct line according to the present invention.
FIG. 3 is an explanatory diagram showing the relationship between the unitized ζ path duct and the plug, and FIG. 4 is the present invention 4- path duct line,
5...S suduct, 6. Duct, 7...Insulator (for conductor support), 8 Conductor 2.9 Connector - built-in insulator, 10
Molded insulated pressing part with tightening fitting, 11...Support plate, 12 Coupling, 13...Power supply terminal, 14 End feed-in, 15 End closer, 16 Re-
1 Case S figure 3 Roof 6 B

Claims (1)

[Claims] An insulator with a built-in connector that is placed above the position of each conductor to be connected and receives the mutual terminals of each conductor from both sides, and an insulator that is divided into two in the conductor direction and connects the conductor to the contact part with each conductor. A lower insulator with pushing protrusions arranged in a triangular shape in the longitudinal direction, and these lower insulators are pushed toward the upper insulator by pressurizing the center of gravity of the triangle above, so that contact pressure is applied to each conductor. The feature is that it consists of a device that 2.2 duct connection device.