JPH0117817Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field) The present invention relates to a split type compression terminal used for electric wires such as three-conductor power transmission lines and busbars.

(Background technology) For example, three-conductor electric wires made of hard aluminum stranded wires, heat-resistant aluminum alloy stranded wires, etc. are used for 275 to 500 kV class bus bars. Three conductors made of heat-resistant aluminum alloy strands measuring 1260 to 2500 ^mm2 are used.

There are two types of arrangement methods for these three conductor wires: a method in which three conductor wires are arranged horizontally, and a method in which three conductor wires are arranged in a triangle.

In this case, the electric wires drawn into the various equipment in the substation have two types of arrangement similar to the above, and the compression type terminals attached to the terminals of the electric wires are also arranged horizontally (hereinafter referred to as horizontal) for three conductors and triangular. Arrangement (below,
There is a type for 3 conductors (referred to as triangular).

For three horizontal conductors, split compression terminals such as those shown in FIG. 1 A, B, and C have been used. Figure A is a front view, Figure B is a side view, and Figure C is a top view. In the figure, 21, 22, and 23 are split type compression terminals (hereinafter referred to as split terminals), which have wire compression parts 24, 25, 26, and battledore parts 27, 28, 29 for connecting to equipment, etc., respectively. have. In the figure, the battledore parts 27, 28, 29 are arranged in the same horizontal plane, and the wire compression parts 24, 25, 2
Since 6 is also placed in the same horizontal plane, 2 is formed into a key shape (〓) bent at two places in the horizontal plane.
Key-shaped split terminals 21, 23 with different types of orientations
(both sides) and one type of straight-line split terminal 22 are used.

On the other hand, for triangular 3 conductors, conventionally Fig. 2 A, B,
A split compression terminal as shown in Fig. 3 was used. Figure A is a top view, Figure B is a side view, and Figure C is a rear view. In the figure, 31, 32, 33 are split terminals, respectively, and wire compression parts 34, 3, respectively.
5, 36, and battledore portions 37, 38, 39. In the figure, the battledore parts 37, 38, 39 are arranged in the same horizontal plane, and the wire compression parts 34, 35, 3
6 is arranged in a triangular shape with different sides from the surface, two types of bent split terminals 31 and 33 (bottom sides) bent in three places and in different directions, and one type of bent split terminals 31 and 33 in two places in the vertical plane. A key-shaped split terminal 32 (upper center) formed into a bent key shape (〓) is used.

The reason why the compression type terminal is divided into three parts is due to the tool used to compress the large compression part.
This is to allow compression processing to be carried out one by one, since when working on a single battledore board, the adjacent electric wire compression parts come into contact with each other.

For these horizontally arranged and triangularly arranged split terminals for 3 conductors, for example, if we receive a production order for the same size and same battledore shape, the horizontal 3 conductor and triangular 3 conductor split terminals will each have different shapes. There is no commonality at all, and it is necessary to make six types of parts for both, so six types of wooden molds or metal molds are required for manufacturing terminals, making manufacturing complicated and expensive.

In addition, in the triangular three-conductor terminal shown in Figure 2, the terminals on both sides are bent at three places, so the shape is complicated, and the bending allowance is large because there are many bending points.
The disadvantage is that the total length of the terminal is longer.

(Disclosure of the invention) The present invention was made to solve the above-mentioned problems, and by improving the triangularly arranged split terminals, the number of dual-use split terminals for horizontal and triangular 3 conductors was increased, and the total number of split terminals was increased. It is an object of the present invention to provide a split compression terminal for three conductors, which can reduce the number of split terminals, facilitate manufacturing and storage, reduce costs, and shorten the overall length of the terminal.

In this invention, three conductor compression parts are arranged in a triangle,
In a split-type compression terminal for three conductors in which three split-type battledore parts are in the same plane, the compression terminal, which has split-type battledore parts on both sides, is hook-shaped (〓 ) is a split type compression terminal for three conductors, characterized in that the compression terminal having a central split type battledore portion has a hook shape (〓) bent at two places in a plane perpendicular to the plane.

The terminal to which the present invention is applied is a three-piece compression terminal for electric wires such as large current transmission lines and busbars.

Fig. 3 is a diagram showing an embodiment of the present invention, in which Fig. A is a front view, Fig. B is a side view, and Fig. C is a top view. In the figure, 1, 2, and 3 are split type compression terminals, respectively.
wire compression parts 4, 5, 6 and battledore parts 7,
It has 8 and 9. The battledore parts 7, 8, 9 are arranged in the same plane (for example, in the horizontal plane), and the wire compression parts 4, 6 of the split terminals 1, 3 on both sides are also arranged in the battledore parts 7, 8, 9.
9 (for example, in the same horizontal plane). Split terminals 1 and 3 are bent at right angles at points 10 and 12 on both sides (left and right) from battledore parts 7 and 9, respectively, in the same plane (for example, in a horizontal plane), and then bent at right angles at points 11 and 13. It is shaped like a key (〓), which is bent at two places in total. These split terminals 1 and 3 on both sides have exactly the same shape as the split terminals 21 and 23 on both sides of the horizontally arranged three-conductor terminal shown in FIG. 1, and can be used for the same purpose.

Next, the central split terminal 2 shown in FIG. apex (point of height √3/2 from the base)
Therefore, in a plane perpendicular to the plane containing the battledore part (for example, in a plane perpendicular to a horizontal plane), the battledore part 8
It is bent upward at a right angle at a point 14, then at a right angle at a point 15, and is bent at two positions in total to form a key shape (ⓓ). The shape of this split terminal 2 is unique,
Cannot be used with others.

The triangularly arranged three-conductor split terminals 1, 2, and 3 according to the present invention configured in this way have a battledore portion 7,
8 and 9 are arranged in the same plane (horizontal plane or other plane may be used), and the wire compression parts 4, 5, and 6 are arranged in a triangular arrangement.

(Effects of the invention) The three-conductor split type compression terminal of the invention constructed as described above has the following effects.

(b) In the triangularly arranged split terminal for three conductors, the compression terminals each having split battledore parts on both sides are hook-shaped bent at two places in the same plane as the battledore parts, so that the horizontal arrangement as shown in Figure 1 is not possible. It can be used as the split terminals on both sides of the split terminal, so it can be used for horizontal 3 conductors and triangular 3 conductors, compared to the conventional 6
Instead of requiring different types of split terminals, only four types are required, so four wooden molds or metal molds are required for manufacturing.
It requires only a few different types, is advantageous in terms of storage, is simple and easy to manufacture, and reduces costs.

(b) A compression terminal with a central split-type battledore part is bent in two places in a plane perpendicular to the plane containing the battledore part, and the split terminals on both sides are also bent in two places as mentioned above. Therefore, compared to the conventional bent split terminal on both sides that is three-dimensionally bent in three places as shown in Fig. 2, the structure is simpler, there are fewer bending points, less bending allowance is required, and the overall length of the terminal can be shortened. .

[Brief explanation of the drawing]

FIGS. 1A, 1B, and 1C are views showing an example of a split-type compression terminal for three conductors arranged horizontally; FIG. 1A is a front view, FIG. 1B is a side view, and FIG. FIGS. 2A, 2B, and 2C are views showing an example of a conventional split-type compression terminal with a triangular arrangement, where A is a top view, B is a side view, and C is a rear view. FIGS. 3A, 3B, and 3C are views showing an embodiment of the present invention, where A is a front view, B is a side view, and C is a top view. 1, 2, 3, 21, 22, 23, 31, 32,
33...Split type compression terminal, 4, 5, 6, 24, 2
5, 26, 34, 35, 36... wire compression section,
7, 8, 9, 27, 28, 29, 37, 38, 3
9... Battledore part, 10, 11, 12, 13, 1
4,15... points.

Claims (1)

[Scope of utility model registration request] In a split-type compression terminal for three conductors in which the three conductor compression parts are arranged in a triangle and the three split-type battledore parts are in the same plane, the compression terminals each having the split-type battledore parts on both sides are the same as the battledore parts. A split compression terminal for three conductors, characterized in that the compression terminal has a hook shape bent at two places in a plane and has a split battledore part in the center, and the compression terminal has a hook shape bent at two places in a plane perpendicular to the plane. .