JP3068845B2 - Flat power cable connection - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a connecting portion for mutually connecting flat power cables having different wiring directions.

(Prior Art) Conventionally, in a building such as a building or a factory, a round power cable or a bus duct having a large power transmission capacity has been wired. However, recently, a flat power cable having a large transmission capacity and low impedance has been used.

In a building, flat power cables having different wiring directions must be connected to each other. For this reason, conventionally, the terminals of each flat power cable to be connected are overlapped, and the cable conductors are connected by crimp terminals, or the exposed cable conductors are connected to each other by a compression sleeve, and then an insulating tape is wound. I was trying to attach it.

(Problems to be Solved by the Invention) However, since the crimping tool and the compression tool used for this connection have a relatively large shape, they are heavy and, therefore, a flat power cable wired at a high place is required. In the case of connection, this heavy tool must be lifted, and work such as crimping must be performed in a place with poor scaffolding. Therefore,
There were drawbacks that forced the worker to do a lot of labor and difficult work.

When a compression sleeve is attached to each cable conductor, if the number of cable conductors is large, this compression work requires a great deal of time and labor, and furthermore, the compression sleeve is arranged at a predetermined position of each cable conductor. A skilled worker is required to mount and wind the insulating tape.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and it is an object of the present invention to provide a flat power cable connection portion which can easily connect flat power cables having different wiring directions with good workability. With the goal.

(Means for Solving the Problems) The present invention relates to a connecting portion used for a power main line of a building and interconnecting a plurality of flat power cables having different wiring directions, wherein One of the openings for introducing the respective cable conductors of the plurality of flat power cables in parallel and the other of the other of the plurality of flat power cables having different wiring directions for introducing the respective cable conductors of the flat power cables in parallel. A casing having the other opening, a plurality of cable conductors for each row introduced from the one opening,
A pair of connection conductor plates for sandwiching a plurality of cable conductors of each row introduced from the other opening and corresponding to each row from both sides, and a plurality of connection conductor plates for partitioning the pair of connection conductor plates. The pair of connecting conductor plates are pressed and moved within the casing so that the insulator and the pair of connecting conductor plates are brought closer to each other so as to sandwich the corresponding plurality of cable conductors in each row. And a pressing mechanism.

(Function) A cable conductor of one flat power cable is inserted and arranged at one end between each pair of connection conductor plates, and a cable conductor of the other flat power cable having a different wiring direction at the other end. Insert and place.

Then, a pressing force in the thickness direction is applied to the connection conductor plate at the end by the pressing mechanism.

Therefore, each pair of connection conductor plates approach each other while moving to the other end side by this pressing force, and pinch a pair of cable conductors having different wiring directions.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a longitudinal sectional view of a connecting portion of the flat power cable according to the present invention, and FIG. 2 is a transverse sectional view of the connecting portion.

In these figures, reference numeral 1 denotes a casing.
This casing 1 has a cubic shape, and on one side wall,
As shown in FIG. 2, a rectangular opening 1A is formed. This opening 1A has a hollow protrusion 1B for introducing a cable.
And a cover member 2 is fitted to the protruding portion 1B as shown in FIG. 2 and FIG. Another opening (not shown) having a rectangular shape is formed in the top wall of the casing 1, and another opening 1 C for a hollow for introducing a cable projecting upward (see FIG. 1) is formed in this opening. ) Is provided. As shown in FIGS. 1 and 4, a cover member 3 is fitted to the protruding portion 1C.

Terminals of a plurality of flat power cables 4 that are overlapped and wired in the lateral direction are inserted into the cover member 2. Each of these flat power cables 4 has cable conductors 4U, 4V, and 4W of each phase arranged in parallel, and an insulating layer is provided thereon. Terminals of a plurality of flat power cables 5 wired in the vertical direction are inserted into the cover member 3. These flat power cables 5 also have the same configuration, and have cable conductors 5U, 5V, and 5W of each phase. At the ends of these flat power cables 4 and 5, the cable conductors are exposed.

In the casing 1, three pairs of connection conductor plates 6A, 6B, 7A, 7B, 8
A and 8B are arranged. These connecting conductor plates 6A, etc.
As shown in the figure, a plurality of engagement grooves 9 formed of a rectangular plate-like conductor plate and having a substantially semicircular cross section at one end side are provided adjacent to each other along the lateral direction, and a substantially half cross section is formed at the other end side. A plurality of circular engagement grooves 10 are provided adjacent to each other along the longitudinal direction. These engagement grooves 9 and 10 are formed with thread-shaped irregularities.
The connection conductor plates 6B, 7B, 8B are formed thinner than the connection conductor plate 6A and the like.

Three pairs of connecting conductor plates 6A, 6B, 7A, 7B, 8A, 8B are casing 1
Are arranged in parallel along the thickness direction, and each pair of connecting conductor plates 6A, 6B, 7A, 7B and 8A, 8B face each other with the surfaces provided with the engagement grooves 9, 10 facing each other. I have. Each of the pair of connection conductor plates is fitted in a recess of the insulator 11. An insulating plate 12 is disposed between the upper and lower surfaces of the insulator 11 and the top and bottom walls of the casing 1. Another insulator 13 is disposed on the back side of the connection conductor plate 6A located at one end side, which does not have an engagement groove.
A spacer 14 is disposed between the inner wall surface of the back wall and the inner wall surface.
A part of the spacer 14 penetrates the casing 1 vertically. The insulators 11, 13 and the insulating plate 12 are formed of a hard insulating material such as a glass fiber reinforced epoxy resin (GFRP).

A pressing mechanism 16 is provided in the space of the casing 1 on the side of the connection conductor plate 8B located on the other end side. The pressing mechanism 16 includes a pair of second wedge members 17 having a pair of first wedge members 17 disposed on both end sides of the connection conductor plate 8B and a gradient surface 18a in surface contact with each of the gradient surfaces 17a of the wedge members 17. Wedge member 1
8 and has. The first wedge members 17, 17 are movably arranged between the insulator 11 on the other end side and the second wedge member 18, and the tapered lower end is in contact with and supported by the support block 15. The screw portion 20 of the pressing adjustment bolt 19 is screwed into the second wedge member 18 from above. These pressure adjusting bolts 19 penetrate the casing 1 upward, and are supported by the casing 1 so as to rotate at fixed positions via bearings and the like. That is, the head 19 of these pressing adjustment bolts 19
When a is rotated in a predetermined direction by a driver or the like, the second wedge members 18, 18 move upward, so that the first wedge members 17, 17 are moved upward.
Moves and presses the connection conductor plate 8B in the thickness direction via the insulator 11. In addition, from each insulator 11, a thin partition plate 21 is formed.
1 and 2, these partition plates 21 extend to the cover members 2 and 3, respectively, to prevent the cable conductors of each phase from coming into contact with each other, as shown in FIGS. ing.

 Next, the usage of the connecting portion of the present invention will be described.

First, the cable conductors 4U, 4V, and 4W of each phase of the plurality of flat power cables 4 wired in the horizontal direction are passed through the cover member 2 so that the pair of connection conductor plates 6A and 6B, 7A and 7B, and 8A Insert and place from one side of 8B from the side. In this case, each cable conductor 4U is engaged in the engagement groove 9.

In addition, the cable conductors 5U, 5V, 5W of each phase of the plurality of flat power cables 5 wired in the vertical direction are passed through the cover member 3 so that a pair of connection conductor plates 6A and 6B, 7A and 7B, 8A Insert and place from above the other end of 8B. In this case, each cable conductor 5U is engaged in the engaging groove 10 from above.

Next, the first wedge member 1 is rotated by rotating the pressure adjusting bolts 19 and 19 to move the second wedge members 18 and 18 upward.
7 and 17 are moved, and a pressing force in the thickness direction is applied to the connection conductor plate 8B via the insulator 11. Therefore, the connection conductor plate 8B moves to the spacer 14 side, and accordingly, the other connection conductor plate 8A
The pair of connecting conductor plates 6A and 6B sandwich the cable conductor 4U group and the cable conductor 5U group, and the pair of connecting conductor plates 7A and 7B sandwich the cable conductor 4V group and the cable conductor 5V group. Further, a pair of connecting conductor plates 8A and 8B sandwich the cable conductor 4W group and the cable conductor 5W group. In this case, the engagement grooves 9 and 10 of each connection conductor plate are provided with thread-shaped irregularities, so that the cable conductor can be securely clamped.

The pressing mechanism 16 described above is not limited to the present embodiment, and a pressing bolt may be inserted into the side wall of the casing 1 and a pressing force may be applied to the connection conductor plate 8B via the insulator 11 by the pressing bolt. Alternatively, a pressing force may be applied to the connection conductor plate 8B by an elastic member.

By the way, a flat power cable 5 is connected to each connection conductor plate 6A and the like.
It is sufficient to provide the engagement groove 10 in accordance with the wiring position. For example, the flat power cable 5 can be wired at an arbitrary angle by providing the engagement groove 10 obliquely with respect to the engagement groove 9. .

Further, by bending each of the connection conductor plates 6A and the like at substantially the center, the flat power cable 5 can be wired at the twisted position.

Furthermore, by bending each connection conductor plate 6A etc. at a right angle,
It is also possible to wire the flat power cable 5 orthogonally to the width direction of the flat power cable 4.

(Effects of the Invention) As described above, according to the present invention, the cable conductor of one flat power cable is inserted and arranged at one end of each pair of connection conductor plates, and the wiring direction is different at the other end. Insert and arrange the cable conductor of the other flat type power cable, apply a pressing force in the thickness direction to the connecting conductor plate at the end by a pressing mechanism, and clamp the cable conductor between each pair of connecting conductor plates. As a result, flat power cables with different wiring directions can be connected to each other with simple work and good workability, and connection parts that do not require skilled personnel since terminal attachment and taping work are not required. Can be provided.

In addition, there is an advantage that the appearance and insulating properties of the connection portion are improved as compared with the case where the insulating tape is wound.

[Brief description of the drawings]

1 is a longitudinal sectional view of a connecting portion of the flat power cable according to the present invention, FIG. 2 is a transverse sectional view of the connecting portion, FIG. 3 is a perspective view of a connecting conductor plate according to the present invention, FIG. FIG. 2 is a front view of the connecting portion. 1 ... casing, 4,5 ... flat power cable, 4U-4W, 5U-5W ... cable conductor, 6A, 6B, 7A, 7B, 8A, 8B ... connecting conductor plate, 9,10 ... Insertion groove, 11,13 ... insulator, 16 ... pressing mechanism, 17 ... first wedge member, 18 ... second wedge member, 19 ... pressing adjustment bolt.

Continuing from the front page (72) Inventor Morio Sugimura 2-1-1 Oda Sakae, Kawasaki-ku, Kawasaki City, Kanagawa Prefecture Inside Showa Electric Wire & Cable Co., Ltd. (72) Tadashi Kase 2-1-1, Oda Ei Kawasaki-ku, Kawasaki City, Kanagawa Prefecture No. 1 Inside Showa Electric Wire & Cable Co., Ltd. (56) References JP-A-63-53868 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01R 12/08 H01R 4/50

Claims (1)

(57) [Claims] 1. A connecting portion for connecting a plurality of flat power cables having different wiring directions, which is used for a power trunk line of a building, wherein each of the plurality of flat power cables has a different wiring direction. A casing having one opening for introducing the cable conductors in parallel and the other opening for introducing the respective cable conductors of the plurality of flat power cables having different wiring directions in parallel; A plurality of cable conductors in each row introduced from the one opening and a plurality of cable conductors in each row introduced from the other opening and correspondingly sandwiched from both sides. A pair of connection conductor plates, a plurality of insulators for partitioning between the pair of connection conductor plates, and a plurality of cables in each row corresponding to the pair of connection conductor plates by approaching each other. To clamp the conductor And a pressing mechanism for pressing and moving each pair of connection conductor plates in the casing.