JP6447382B2 - Power distribution equipment - Google Patents

Description

Embodiments of the present invention relates to power distribution equipment conductor connecting device is improved for connecting the outer lead-out conductor of the power receiving and transforming equipment for example a transformer main circuit cable terminal and example if the switchboard.

  As a method of connecting a main circuit cable terminal in a conventional transformer, for example, a transformer, and an external lead conductor of a switchboard, the main circuit cable terminal and the conductor are pre-drilled, a bolt is inserted into the hole, and the end of the bolt is inserted. There is a method to fix the nut by tightening the nut.

Japanese Utility Model Publication No. 61-099366 Japanese Utility Model Publication No. 61-099367 Japanese Utility Model Publication No. 62-088374 Japanese Utility Model Publication No. 02-137757 Japanese Unexamined Patent Publication No. 07-31235 JP 09-069370 A JP 2009-283391 A

  In the above-described method of drilling holes in the main circuit cable terminals and conductors and fixing them with bolts, the main circuit cable terminals and the conductors may not be connected if the positions and shapes of the holes are incorrect.

An object of the present embodiment is to obtain a power distribution facility in which a conductor connection device is improved so that conductor connection can be performed without drilling holes in at least two conductors to be connected to each other.

According to the embodiment, the power receiving and transformation device having a main circuit cable terminal, a switchboard having an external lead conductor, and a conductor connecting device for connecting the main circuit cable terminal and the external lead conductor, the conductor connection The device is connected to one end portion so as to be able to be fitted to the first holding piece of L shape or I shape having a holding portion at one end portion and a connecting portion at the other end portion, and the connecting portion of the first holding piece. I-shaped or L-shaped second clamping piece that has a portion and a clamping portion at the other end, and is connected so as to be U-shaped as a whole when connected to the connecting portion of the first clamping piece And a gap between the first clamping pieces and a coupling part between the second clamping pieces, the gap between the clamping parts being adjustable, and the gap being adjustable to a desired value. An adjustment mechanism, and at least a clamping part of the first clamping piece and a clamping part of the second clamping piece; On the other hand, is engaged through screw, the bolt tightening to clamp against both sandwiching portions the main circuit cable terminal which are arranged to overlap between the a and the external lead-out conductor, wherein the external lead-out to the main circuit cable terminals Since the through-bolt for passing through the conductor and fixing the main circuit cable terminal and the external lead conductor is not provided , the above-described problem can be solved.

The perspective view for demonstrating schematic structure of embodiment. The perspective view for demonstrating the principal part of FIG. The perspective view for demonstrating only the 1st clamping piece side of FIG.

  Hereinafter, embodiments will be described with reference to the drawings.

The first embodiment will be described below with reference to FIGS. This embodiment generally includes a first clamping piece 1, a second clamping piece 2, a clamping part interval adjusting mechanism 3, and a fastening bolt 4, which are configured as follows.

  The first clamping piece 1 is made of an insulating metal having a U-shaped cross section, for example, and is an L-shaped member having a clamping part 11 at one end and a connecting part 12 at the other end.

  The second clamping piece 1 is made of an insulating metal having a U-shaped cross section, for example, and is an L-shaped member having a clamping part 21 at one end and a connecting part 22 at the other end.

  The holding part interval adjusting mechanism 3 is provided between the connecting part 12 of the holding piece 1 and the connecting part 22 of the holding piece 2, and can adjust the interval between the holding parts 12 and 22 and can fix the interval to a desired value. It is configured as follows. Specifically, the clamping part interval adjusting mechanism 3 is an adjustment bolt 32 that penetrates through the long groove 31 formed in the coupling part 12 of the clamping piece 1 and the wall surface of the coupling part 22 of the clamping piece 2 and has a male screw part at its tip. And a nut capable of fixing the gap between the clamping part 11 of the clamping piece 1 and the clamping part 21 of the clamping piece 2 as desired by being screwed into a male screw part at the tip in a state where the adjustment bolt 32 is inserted into the long groove 31. (Not shown).

  The fastening bolt 4 is screwed into a female screw portion (not shown) formed through the wall surface of the clamping portion 11 of the clamping piece 1, and at least two conductors provided between this and the clamping portion 21 of the clamping piece 2. For example, the main circuit cable terminal 5 of the transformer in which the cable and the terminal are integrally connected and the external lead conductor 6 of the switchboard are press-contacted.

  In the embodiment described above, it is not necessary to drill holes in the main circuit cable terminal 5 and the conductor 6, and there is no situation in which connection cannot be made due to a terminal processing error or a terminal selection error.

Further, by rotating the adjustment bolt 32 constituting the holding portion interval adjusting mechanism 3, the connecting portions 12, 22 can be adjusted up and down to adjust the interval between the holding portions 11, 21, so that the main circuit cable terminal 1 and the conductor can be adjusted. 6 is fixed, both can be electrically connected even when the thickness of the main circuit cable terminal 5 or the conductor 6 is changed. The conductor connection device of the present embodiment can be made compact and can have a large insulation distance from the outside. Furthermore, according to the present embodiment, a receiving conductor (not shown) for stably connecting the main circuit cable terminal 5 and the conductor 6 can be newly provided between the holding portions 11 and 21.

  In the embodiment described above, the main circuit cable terminal 5 and the conductor 6 are all rectangular in section, but are not limited to this and may have any shape. In the embodiment of FIG. 1, two sets of conductor connection devices are provided, specifically, those provided on both opposite side surfaces of the terminal 5 and the conductor 6. It may be provided only on the side. Furthermore, although both of the L-shaped shapes of the sandwiching pieces 1 and 2 are cited, one of them may be L-shaped and the other may be I-shaped, or a combination thereof. Any shape may be used as long as the sandwiching pieces 1 and 2 are connected to form a U-shape. Further, although the tightening bolt 4 is threaded through only the clamping part 11 of the first clamping piece 1, it may be threaded through the clamping part 21 of the second clamping piece 2. Furthermore, the long groove 31 which comprises the clamping part space | interval adjustment mechanism 3 is not restricted to this, You may form a long hole and a some hole spaced apart. Further, the main circuit cable terminal 5 and the conductor 6 to be connected are not limited to this, and may be other conductors, and the number is not limited to two, and may be any number. Although several embodiments have been described, these embodiments have been presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 1 ... clamping piece, 11 ... clamping part, 12 ... connection part, 2 ... clamping part, 21 ... clamping part, 22 ... coupling part, 3 ... clamping part space | interval adjustment mechanism, 31 ... long groove, 32 ... adjustment bolt, 4 ... tightening Bolts, 5 ... main circuit cable terminals, 6 ... conductors.

Claims (2)

A receiving and transforming device having a main circuit cable terminal;
A switchboard with external lead conductors;
A conductor connecting device for connecting the main circuit cable terminal and the external lead conductor;
With
The conductor connecting device is
An L-shaped or I-shaped first clamping piece having a clamping part at one end and a connecting part at the other end;
When connecting to the connecting portion of the first holding piece, the connecting portion of the first holding piece has a connecting portion at one end and a holding portion at the other end so that the connecting portion can be fitted to the connecting portion of the first holding piece. An I-shaped or L-shaped second sandwiching piece connected to form a letter shape;
A holding portion interval adjusting mechanism provided between the connecting portion of the first holding piece and the connecting portion of the second holding piece, capable of adjusting an interval between the both holding portions and fixing the interval to a desired value. When,
The main circuit cable terminal and the external lead conductor, which are threaded into at least one of the sandwiching portion of the first sandwiching piece and the sandwiching portion of the second sandwiching piece, and are disposed to overlap between the sandwiching portions ; A tightening bolt that presses and clamps,
Equipped with a,
The power distribution equipment is characterized in that a through bolt for passing through the main circuit cable terminal and the external lead conductor and fixing the main circuit cable terminal and the external lead conductor is not provided . The clamping portion interval adjusting mechanism is penetrated by at least one of a long hole, a long groove, and a plurality of holes formed in the coupling portion of the first clamping piece, and a wall surface of the coupling portion of the second clamping piece, An adjustment bolt having a male screw portion at the tip, and the male screw portion at the tip of the adjustment bolt is screwed into the male screw portion in a state of being inserted into any of the long hole, the long groove, and the plurality of holes, and the both clamping pieces The power distribution equipment according to claim 1, further comprising a nut capable of fixing the gap between the holding portions as desired.

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