JPS6023893Y2 - Busbar terminal connection device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a device that converges the terminal portions of so-called multi-stage busbars in which each phase is composed of a plurality of busbars and connects them to connection terminals in, for example, bus ducts, etc., and improves work efficiency. The purpose is to obtain a good terminal connection device.

As shown in Fig. 1, the conventional terminal connection device of this type is to attach the ends of two bus parts 2 arranged in parallel in the width direction to one connecting conductor 3 with bolts 4 and nuts (not shown). A connecting terminal 5 of a power receiving/distributing power supply device, etc. is attached to this connecting conductor 3 with bolts 6 and nuts (not shown).

In addition, as shown in Fig. 2, the connecting conductors 7 and 8 are attached to both ends of the bus part 2 with bolts 4 and nuts so that they do not protrude in the longitudinal direction of the bus bar, and the connecting terminals 5 are attached to the connecting conductors 7 and 8 with bolts 6. - Some are attached with nuts (not shown).

For this reason, the bus part 2 requires drilling many holes for bolt insertion.

Further, during the bus bar installation work, many parts such as the connecting conductors 3 and 7 and 8, bolts 4 and 6 nuts, etc. are handled, resulting in poor work efficiency.

In order to solve the above-mentioned disadvantages of the conventional device, the present invention arranges a plurality of busbars in parallel in the width direction, and when converging one end of each busbar and connecting it to a connection terminal, each of the two outer busbars is Weld conductive backing plates of opposite lengths at the center of the bus bars arranged in parallel, apply a connecting terminal across the opposing conductive backing plates, and connect the conductive backing plate and the connecting terminal with a fastener. It is a fastened connection.

Hereinafter, a specific example of the device of the present invention will be described with reference to the drawings.

Figures 3 and 4 show examples in which one phase is composed of two busbars 9 and 10, and a conductive backing plate 11 with a width dimension equal to the busbar interval d of 172 is added to the end of each busbar 9 and 10.・12
The conductive patch plates 11 and 12 are brought into contact with each other as shown in FIG. A nut 18 is screwed onto a bolt 17 passed through holes 15 and 16 made in the terminal 14, and the terminal 14 is fastened and connected.

Figures 5 and 6 show one phase using three busbars 19, 20, and 2.
In the example configured in 1, conductive backing plates 22 and 23 are welded 24 so as to protrude in the width direction of the bus bars so as to face each other at the center of the bus bars arranged in parallel at the ends of both outer bus bars 19 and 21, The three busbars 19 to 21 are arranged in parallel as shown in FIG. 5 so that the conductive backing plates 22 and 23 are in contact with each other, and the connection terminal 25 is applied across both conductive backing plates 22 and 23, and the central bus bar 20, holes 26, 27, and 28 made in the backing plates 22 and 23 and the connection terminal 25 are passed through, and a nut 30 is screwed into the hole 29 to make a fastening connection.

Figures 7 and 8 show examples in which the device of the present invention is applied to the tap lug section of a bus duct with insulated conductors in close contact.Each phase is composed of two insulated conductors 31 and 32, and each conductor end is In this case, conductive backing plates 33 and 34 are butt-welded 35 as in the example shown in FIGS. 3 and 4.

In the device of the present invention, a conductive cover plate is welded in advance to the outer busbar of the busbars to be arranged in parallel as described above, so the holes for bolt insertion need only be drilled for attaching the connection terminals. Improves workability.

In addition, the number of parts to be handled during bus bar installation work is small, which has the effect of improving installation work efficiency.

Busbars are plated on their entire length or terminal connections, but in the device of the present invention, each busbar is independent as shown in Figures 4 and 6 when the conductive backing plate is welded. It has good workability in plating processing, transportation, etc.

[Brief explanation of the drawing]

Figures 1 and 2 are perspective views of the conventional device, Figure 3 is a perspective view showing an embodiment of the device of the present invention, Figure 4 is the same view with the bus bar separated, and Figure 5 is another example of the device of the present invention. FIG. 6 is a perspective view showing the embodiment, FIG. 6 is the same diagram with the bus bar separated, FIG. 7 is a plan view of the device of the present invention applied to a tap lug portion of an insulated conductor-contact type path duct, and FIG. 8 is a side view thereof. . 1, 2, 9, 10. 19, 20, 21 are bus bars, 3,
7 and 8 are connecting conductors, 11, 12, 22, 23, 33, 3
4 is a conductive patch plate, 5, 14.25 is a connecting terminal, 31.
32 is an insulated conductor.

Claims (1)

[Scope of utility model registration request] When a plurality of busbars are arranged in parallel in the width direction and the terminals of each busbar are converged and connected to a connection terminal, conductive wires of opposite lengths are placed on each of the busbars on both sides at the center of the busbars arranged in parallel. This is a bus bar terminal connection device in which a conductive patch plate is welded, a connecting terminal is applied across the opposing conductive patch plate, and the conductive patch plate and the connecting terminal are fastened and connected using a fastener.