JPH078098B2 - Cable branch connection - Google Patents

Description

TECHNICAL FIELD The present invention relates to a cable branch connector used when a cable is laid indoors.

“Prior art” Conventionally, when wiring a cable indoors, in order to branch the cable, peel off the insulation coating of the cable at the work site to expose the conductor, connect the required number of wires, and cover with insulation tape or the like. I was wiring.

However, it is difficult to perform the above-mentioned work at the work site because the work space is small and the proof is insufficient.
There is a drawback that accidents due to incomplete insulation are likely to occur.

For this reason, recently, cables are branched and connected at a factory, and a cable having a branched connection portion molded with a synthetic resin material is carried into a wiring work site for cable wiring.

However, even in this case, it takes a lot of time to branch the cable in the factory, and since the conductor connecting portion is insulated with the insulating tape, the plastic cover, etc., there is a drawback that the mold portion becomes large. .

“Object of the Invention” In view of the above-mentioned conventional drawbacks, the present invention is to provide a cable branch connector that can easily perform a cable branching work and can downsize the branch portion.

"Means for Achieving the Purpose of the Present Invention" The present invention is a substrate having a plurality of ring-shaped conductors fixed to the lower surface of an insulating plate so as not to intersect each other, and a plurality of substrates mounted on the outer periphery of the upper surface of the substrate. A plurality of groups of terminals for connecting conductors of individual cables or conductors such as cross-linked polyethylene insulation vinyl sheath cables, one end is connected to one of the insulating ring-shaped conductors, and the other end is connected to any of the terminals. Insulating the board inserted in this support from a plurality of lead wires, a dish-shaped support with a cable insertion recess formed in the outer peripheral wall that can accommodate the board to which these lead wires and terminals are attached A cable branch connector is constituted by an insulator filled and fixed in the support wrapped in the body.

"Examples of the Present Invention" Hereinafter, the present invention will be described in detail with reference to the examples shown in the drawings.

In the embodiment shown in FIGS. 1 to 10, reference numeral 1 denotes a disk-shaped substrate, and this substrate 1 is a reinforced bakelite plate or the like having a through hole 2 at its substantially central portion as shown in FIGS. 3 and 4. And a plurality of insulating plates 3 formed in a disk shape and fixedly embedded in the lower surface of the insulating plate 3 in a concentric shape.
It is composed of three ring-shaped conductors 4, 4A and 4B made of a copper alloy or the like for the ground side and the ground.

5 is a bolt 6 and a nut 7 on the upper surface of the outer peripheral portion of the substrate 1.
A plurality of groups of terminals for connecting the conductors 9 of the plurality of cables 8, 8A, 8B, 8C, 8D, and 8E fixed in this embodiment, which are six in this embodiment, and these terminals 5 are shown in FIG. As shown in FIG. 6, an L-shaped terminal body 10, a mounting hole 11 formed in the base portion of the terminal body 10, and an insulating plate 3 of the board 1 formed in the base portion of the terminal body 10 are inserted into the terminal body 10. It is composed of a whirl-stop piece 12 for preventing the whirl-stop, and a conductor insertion recess 13 formed at the tip of the terminal body 10.

Reference numeral 14 is a lead wire. As shown in FIGS. 7 and 8, the lead wire 14 has one end connected to the terminal 5 on the lower surface of the substrate 1 and the other end connected to the ring-shaped conductors 4, 4A, 4B. It is fixed by brazing or banding to any one of them, and a plurality of lead wires 14 are used to connect the arbitrary terminals 5 and the ring-shaped conductors 4, 4A, 4B, respectively.

Reference numeral 15 is a support to which the plurality of lead wires 14 and the plurality of terminals 5 are attached, and the substrate 1 is housed inside via an insulating plate 16 made of plastic or the like.
As shown in FIG. 10 and FIG. 10, a dish-shaped support main body 17,
Mounting screw 18 formed in the approximate center of this support body 17
And a plurality of cable insertion recesses 20 formed on the outer peripheral wall of the support body 17.

Reference numeral 21 denotes a vinyl chloride, epoxy, or polyester insulator filled in the support 15 via an insulating plate 16 made of plastic or the like and filled so as to cover the wiring-completed substrate 1.

The cable branch connector 22 having the above-described configuration is used in a factory with a good working environment.
Attach the terminals 5 of 8B, 8C, 8D, and 8E, and perform the terminal attaching process. Also, make a pre-designed wiring using these lead wires 5 and the ring-shaped conductors 4, 4A, 4B. Perform the wiring process.

Then, at the terminal 5, the conductors 9 of the cables 8, 8A, 8B, 8C, 8D, and 8E, which are cut to a predesigned length, are attached.
Perform the cable connection process to connect each by brazing or soldering.

Next, the substrate 1 is wired in the support 15 via the insulating plate 16.
Perform the support assembly process to store.

This support assembling process is performed by the support 15 and the mounting pipe 19
Is inserted into the through holes 23 and 2 of the insulating plate 16 and the substrate 1, and a plurality of connected cables 8, 8A, 8B, 8C,
8D and 8E are inserted into the cable insertion recesses 20 formed in the support 15, respectively.

Next, as described above, the support assembly step has been completed, and the support 15 is filled with an insulator 21 such as vinyl chloride in the insulator 15 by a molding process.

The cables 8, 8A, 8B, 8C, 8D, and 8E thus connected by the cable branch connector 22 are brought into the field and cabled respectively.

[Different Embodiments of the Present Invention] Next, different embodiments of the present invention shown in FIGS. 11 to 19 will be described. In the description of these examples,
The same components as those of the embodiment of the present invention are designated by the same reference numerals, and duplicate description will be omitted.

In the embodiment of FIGS. 11 to 13, the main difference from the embodiment of the present invention is that the connection process is performed by the ring-shaped conductors 4, 4
Screws 25 are screwed into screw holes 24 formed in A and 4B at specified intervals.
Such connection process may be used in that the other end of the lead wire 14 is fixed by using.

In the embodiment of FIGS. 14 to 16, the main difference from the embodiment of the present invention is the insulating material filling step. This insulating material filling step is carried out at room temperature by curing epoxy, polyester, etc. in the support 15. Such an insulator filling step may be performed in that the insulator 21A is filled.

In the embodiment of FIGS. 17 to 19, the main difference from the embodiment of the present invention is that the cable 8F is a cross-linked polyethylene heat-resistant vinyl sheath cable (flat type), cross-linked polyethylene vinyl sheath cable or heat-resistant vinyl insulated heat-resistant vinyl sheath. The configuration may be such that a cable or the like is used, and a heat resistant insulator 21B such as heat resistant vinyl is filled in the support 15 to form a heat resistant insulator.

Cross-linked polyethylene insulated vinyl sheath cable 8F
As shown in FIG. 19, the outer peripheral portions of the conductors 9 and 9 are covered with crosslinked polyethylenes 30 and 30, respectively, and the outer peripheral portions of the crosslinked polyethylenes 30 and 30 are covered with a heat-resistant vinyl sheath 31.

Although the terminal 5 is fixed to the substrate 1 by the screw including the bolt 6 and the nut 7 in the embodiment of the present invention, the present invention is not limited to this and may be fixed by an eyelet.

Further, the substrate and the support may be formed in a polygonal shape such as a quadrangle, a pentagon, a hexagon, or the like, and a substrate on which a ring-shaped conductor other than a concentric circle is fixed may be used.

Furthermore, in the embodiment of the present invention described above, the substrate is inserted into the support so that the ring-shaped conductor is located on the lower surface, but the present invention is not limited to this, and the ring-shaped conductor is located on the upper surface. The substrate may be inserted in the support.

The connection between the terminal and the ring-shaped conductor by the lead wire may be performed only on the upper surface of the substrate, or may be performed on both the upper surface and the lower surface.

"Effects of the Present Invention" As is clear from the above description, the present invention has the effects listed below.

(1) A board having a plurality of ring-shaped conductors fixed to the lower surface of an insulating plate so as not to intersect each other, and a plurality of cable conductors attached to the outer periphery of the upper surface of the board or a crosslinked polyethylene heat-resistant vinyl sheath cable A plurality of groups of terminals for connecting conductors such as, and a plurality of lead wires having one end connected to any of the ring-shaped conductors and the other end connected to any of the terminals,
A dish-shaped support having a cable insertion recess formed in the outer peripheral wall capable of accommodating the board to which the lead wire and the terminal are attached, and the board inserted in the support is wrapped in an insulator to fill the support. Since it consists of a fixed insulator, the cable can be easily branched at the factory.

Therefore, branch connection work can be performed easily.

(2) Because of the above (1), there is no need to twist and connect the conductors of a plurality of cables as in the conventional case,
Can be connected securely.

(3) Due to the above (1) and (2), the size of the connecting portion is not increased, so that it is possible to reduce the size and size.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention, and FIG.
Plan views of the figures, FIGS. 3 and 4 are explanatory views of the substrate, and FIG.
6 and 6 are explanatory views of the terminal, FIGS. 7 and 8 are explanatory views of the lead wire, FIGS. 9 and 10 are explanatory views of the support, and FIGS. 11 to 13 and 14 to 16th
FIGS. 17 and 19 are explanatory views showing different embodiments of the present invention. 1: substrate, 2: through hole, 3: insulating plate, 4, 4A, 4B: ring-shaped conductor, 5: terminal, 6: bolt, 7: nut, 8, 8A to 8F:
Cable, 9: conductor, 10: terminal body, 11: mounting hole,
12: Anti-rotation piece, 13: Introduction insertion recess, 14: Lead wire, 15: Support, 16: Insulation plate, 17: Support body, 18: Mounting screw, 19: Mounting pipe, 20: Cable insertion recess, 21, 21
A, 21B: Insulator, 22, 22A: Cable branch connector, 23: Through hole, 24: Screw hole, 25: Screw.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Saijo 4125 Saitama, Gyoda City, Saitama Toyokuni Electric Cable Co., Ltd.Saitama Factory (72) Inventor Akio Sugawara 4125 Saitama Prefecture, Gyoda City, Toyokuni Electric Wire Co., Ltd. Saitama Factory ( 56) References Actual development Sho 58-124022 (JP, U) Actual public Sho 55-40832 (JP, Y2)

Claims (6)

[Claims] 1. A substrate on which a plurality of ring-shaped conductors are fixed so that they do not intersect each other on the lower surface of an insulating plate, and conductors of a plurality of cables mounted on the outer periphery of the upper surface of the substrate or crosslinked polyethylene heat-resistant vinyl. Multiple groups of terminals for connecting conductors such as sheath cables,
A plurality of lead wires, one end of which is connected to any of the ring-shaped conductors and the other end of which is connected to any of the terminals, and an outer peripheral wall capable of accommodating a board to which the lead wires and terminals are attached A cable branch connector, comprising: a dish-shaped support having a cable insertion recess formed therein, and an insulator filled and fixed in the support for wrapping a substrate inserted in the support with an insulator. . 2. The cable branch connector according to claim 1, wherein the substrate is a disc-shaped insulating plate in which a plurality of ring-shaped conductors are embedded and fixed concentrically. . 3. The cable branch connector according to claim 1 or 2, wherein the terminal has a detent piece and is fixed to the substrate by a screw or an eyelet. 4. The cable branch connector according to claim 1, wherein the insulator is formed of an epoxy-based or polyester-based room temperature curing insulator. 5. The cable branch connector according to any one of claims 1 to 3, wherein the insulator is formed of an insulator such as vinyl chloride. 6. The cable branch connector according to claim 1, wherein the insulator is made of a heat-resistant insulator such as heat-resistant vinyl.