JPH0226186Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an improvement in the connection portion of a zigzag armored cable, for example, a zigzag armored cable for ships.

[Prior art and its problems] It is necessary to apply a shield on the connection part of a cable with a shield in order to balance the characteristics of the cable and the cable connection part, especially in terms of mechanical strength. It is.

However, in the conventional connection part of cables with Ajirogai, in order to apply Ajirogai on the cable connection part, a Jiro pipe is passed through one of the cables in advance, and then the Jiro pipe is inserted after the cable is connected. The work is complicated as it has to be pulled back onto the cable connection section.

In addition, since such conventional connections have a linear connection structure in which the cable ends are butted against each other, not only the connection length is inevitably long, but also the phase-to-phase insulation treatment of the conductor connection portions is complicated.

[Purpose of the invention] The purpose of the invention is to eliminate the above-mentioned problems, to facilitate the work of attaching a jirog over the cable connection part, to reduce the length of the connection part, and to simplify the interphase insulation process. The purpose of the present invention is to provide a connection part for Ajirogai armored cable.

[Structure of the invention] The connection part of the Ajiro-shiro-shiro cable according to the present invention converges the terminal parts of several Ajiro-shiro-shiro cables in the same direction, connects the core conductors of these terminal parts, and connects them. A connecting portion of a wire-clad cable, in which an insulating cap is fitted to each connecting portion, the terminal group is collectively surrounded by an insulating cover, and the insulating cover is filled with a curable resin, The distal end portion of the piston tube in the cable terminal group is located within the insulating cover and fixed with a hardening resin filled in the cover, and one end of the piston tube is closed around the insulating cover. The present invention is characterized in that a bag-shaped jacket is closely fitted, and the other end is tied onto the exposed jacket in the cable terminal group using a bind wire.

[Example] The present invention will be explained below with reference to the drawings.

FIG. 1 is a partially cutaway side view showing a connecting portion according to the present invention, and FIG. 2 is a cross-sectional view taken in FIG. 1.

In FIGS. 1 and 2, 1, . . . are Ajiro-shiro-sheathed cables, in which two cable cores 11, 11 and a grounding wire 12 are twisted together with an intervening wire 13, and a plastic sheath 14 and a Ajirogisou (copper wire Ajirogisou or copper alloy wire Ajirogisou) 15 is applied.

The terminal portions of these Ajirogai cables 1, . . . are bundled in a flat shape in the same direction, and 2 indicates a bundle binding. 3a and 3b are conductor connection fittings, and the wire core conductor 11 of one phase of all cables 1,... is connected to all cables 1,... by fittings 3a.
The wire core conductors 11 of the other phase of... are respectively connected by metal fittings 3b. Reference numeral 3c is a grounding wire connecting fitting, and the grounding wires 12 of all the cables 1, . . . are connected through this fitting 3c. 4, 4, 4 are each metal fitting 3
This is an insulating cap that covers a, 3b, and 3c.

5 is a flat insulating cover with a U-shaped cross section; 6 is a curable resin made of polyurethane, epoxy, two-component silicone, etc. filled in the insulating cover 5; The cable end group, including the conductor connections covered by the insulating cap, is reinforced with insulation.

Reference numeral 7 denotes a jacket made of, for example, copper wire or copper alloy wire, which is provided on the insulating cover 5 that encloses the cable connection part, and the jacket 7 is a bag-shaped jacket with one end of the jacket closed. The other end 71 is tightly fitted onto the top of the cable, and the other end 71 is tightened, and the exposed jiggly fitting 1 in the cable terminal group is connected by the binding wire 8.
Bind is fixed on top of 5. In this case, the other end 7
1 and Ajirogaisu 15, . . . are preferably in electrical contact with each other.

In the above description, the group of end portions of the Ajirogisu cables are bundled in a flat shape, but they can also be bundled in a circular shape.

[Effects of the invention] The connection section of the Ajirogai armored cable according to the invention has the configuration as described above, and uses a method of converging the cable terminals in the same direction and connecting the core conductors in phase with each other. Therefore, the easy-to-work bag-shaped Ajiro tube can be attached after the cable is connected without having to pass the Ajiro tube through the cable in advance as in the past.
It is possible to easily reinforce reinforcement on the cable connection part with a simple operation.

Moreover, since the connection method is in the same direction, the connection length can be reduced to approximately 1/2 compared to the conventional butt type.

In addition, since the insulation between the phases is configured by fitting the insulation cap, there is no need to check the status of the phases when filling the hardening resin into the insulation cover, which is difficult to visually see, so there is no need for short circuits between the phases. Interphase insulation can be easily processed. Of course, since the insulation is reinforced with a curable resin, the watertightness and airtightness of the cable connection portion are extremely good.

In particular, the tip portion of the Ajirogisu in the cable terminal group is located within the insulating cover and fixed with a curable resin filled in the cover, and
The other end of the piston tube, which is attached to the insulating cover, is fixed to the exposed part of the fixed piston tube with a binding wire, so that the cable end near the connection where stress tends to concentrate can be reduced. It can be sufficiently mechanically reinforced, and even if it is bent and routed during installation (ship cables are particularly easy to be bent and routed because they are installed in narrow spaces), the cable end will not be deformed,
Provides good protection against damage.

Furthermore, since the connecting portion of the present invention can be mass-produced by factory processing, a connecting portion with stable quality and performance can be obtained at low cost, and branch wiring work on site can be omitted. Therefore, if a large number of such connection parts are used as an interior wiring member having the same wiring pattern, the construction period can be greatly shortened and the outfitting cost can be significantly reduced, which has great practical effects.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway side view showing a connecting portion according to the present invention, and FIG. 2 is a cross-sectional view taken from FIG. 1. In the figure, 1, . . . are Ajirogai armored cables, 11, 11 are cable cores, 12 is a ground wire,
13 is an interposition, 14 is a plastic sheath, 15 is an ajirogai, 2 is a focusing bind, 3a, 3b are conductor connection fittings, 3c is a grounding wire connection fitting, 4, 4,
4 is an insulating cap, 5 is an insulating cover, 6 is a hardening resin, 7 is a hinge, 71 is the other end of the hinge, and 8 is a binding wire.

Claims (1)

[Scope of utility model registration request] The terminal parts of several Ajirogi armored cables are bundled in the same direction, and the phases of the core conductors at these terminal parts are connected, and each of these connecting parts is fitted with an insulating cap, and the terminal parts are grouped together. , a connecting portion of a cable with a hinged shield, which is surrounded by an insulating cover and filled with a curable resin, wherein the tip of the shielded cable in the group of cable terminals is located within the insulating cover; The insulating cover is fixed with a hardening resin filled in the cover, and a bag-shaped jacket with one end of the jacket tube closed is tightly fitted around the insulating cover, and the other end is covered with the cable. A connecting portion of a cable with a hinged cover, characterized in that the cable is tied to the exposed cable with a binding wire in a group of terminal parts.