JP2602907Y2 - Branch structure of unit cable - Google Patents

Description

[Detailed description of the invention]

[0001]

INVENTION The present invention relates to relates to a bifurcation of the unit cables, in particular, simple without requiring Mature kneading the crimp connection between the conductors of the conductor and the branch line of the branch line were crimped with crimp connector The present invention relates to a branch structure of a unit cable which can be insulated to a constant degree and can always obtain a unit cable of constant quality which is not influenced by injection pressure.

[0002]

2. Description of the Related Art With the recent unitization of houses, construction materials have been unitized, and most of construction material units have been manufactured at factories of housing supply manufacturers, and blocks of each unit have been assembled and constructed on site. I have. Also in the indoor wiring in such a unit house system, an electrician cut a plurality of cables to be connected, peeled off the covering material of the terminal, and connected each terminal using a crimp connector at the site such as the ceiling floor. After that, insulation treatment is performed.
However, the on-site space such as the underside of the ceiling is narrow, and wiring construction such as cable connection processing must be performed in such a narrow place.
It took more time than necessary and caused the lack of quality safety in terms of complete connection of the cable and insulation of the connection. In addition, when a resin mold is applied to the processing of the cable connection part, it takes a long time to perform the molding work at the time of attaching the cable connection part by holding a vulcanizing mold or the like on the site and is not practical. There was a problem.

Therefore, in recent years, in order to improve workability, a housing harness (unit cable) has been developed in which a branch connection process of a cable is pre-assembled and formed.

The branch section 100 of the unit cable which has been subjected to the conventional branch connection processing has a structure as shown in FIG. That is, the sheath and the insulator of the branched electric wire 110 are partially peeled to expose the conductor 120. On the other hand, the electric wire 110
A part of the sheath and the insulator of the electric wire 130 connected to the conductor 140 are peeled off to expose the conductor 140. Then, the conductor 120 and the conductor 140 are crimped and connected by a crimp connector 150, and an insulating material 160 is wrapped thereon, and the entire portion from the sheath portion of the electric wire 110 to the sheath portion of the electric wire 130 is molded and coated with a synthetic resin material. are doing. Insulation material 160
, A heat-shrinkable tube, a self-sealing tape, an insulating cap and the like are used. Reference numerals 170 and 180 denote mounting flanges which are formed on both side ends of the branch portion 100 by resin molding.

[0005]

As described above, in the conventional branch structure of the unit cable, the sheath and the insulator of the electric wire 110 are peeled to expose the conductor 120, and the sheath and the insulator of the electric wire 130 are exposed. peeled off to expose the conductors 140, the exposed
The conductor 120 and the conductor 140 are connected by crimping using a crimping connector 150 , and a plurality of connecting portions around which an insulating material 160 is wound so as to cover the crimping connector 150 are put together, and the whole is molded and coated with a synthetic resin material. Electric wire 11
0 and the electric wire 130 . For this reason, multiple connections
Connection of branch conductors crimp connection by the injection pressure of the molding resin in the connection portion to the resin mold vertically (FIG. 5
(Front and back directions) . The offset of the connection portion of the branch conductor to one of the front and back directions results in a decrease in the thickness of the mold with respect to the connection portion of the branch conductor, and when the connection portion of the branch conductor is significantly offset to one of the front and back directions , The surface (or back) of the resin mold
However, there is a problem that the connection portion of the branch conductor protrudes on the surface (1) , so that it is not always possible to obtain a constant quality.

The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide a branch line conductor and a branch line conductor crimped and fixed by a crimp connector. by without winding an insulating material <br/> the crimp connection configured, the insulation between the other crimp connection, can be performed skilled the easily and reliably without requiring, synthetic resin
Unit cable that can always obtain a constant quality unit cable regardless of the injection pressure of the mold resin when the whole is covered with the mold by the material, and can reduce the number of steps of branch connection processing It is intended to provide a branch structure.

[0007]

According to a first aspect of the present invention, there is provided a branch portion structure of a unit cable, wherein a plurality of partition walls are erected at predetermined intervals on a bottom plate formed in a flat plate shape to form a branch path .
Separator accommodating the crimp connection which connects the conductor of the conductor and the branch line of the trunk crimped and fixed to at crimp connector to the branch passage
And the crimping connection of the trunk wire around the separator.
And from the crimp connection to or the trunk sheath of the trunk from the connection portion to the insulator of the wire constituting the main line, and the crimp connection, the from the crimp connection of the branch line
From the crimp connection of the branch line to the sheath of the branch line
The seals and to insulation of the wire constituting the branch line
It is constituted by a mold resin .

[0008] The branch unit structure of the unit cable according to the claims 2, erected a plurality of partition walls at predetermined intervals on the bottom plate that is formed into a flat plate to form a branch passage, into the branch passage A separator housing a crimping connection portion formed by crimping and fixing a conductor of a main line and a conductor of a branch line with a crimping connector, and a crimping connection portion housed in a branch path of the separator from above.
The center and the lid body overmolded by pressing, the separator overmolded said lid, said from the crimp connection of the trunk line
From the crimp connection part of the trunk to the insulator of the wire constituting the trunk, to the sheath of the trunk, to the crimp connection, and from the crimp connection of the branch line to the branch line.
And a molding resin for sealing from the crimp connection portion to the sheath of the branch line or to the insulator of the electric wire forming the branch line.

In the unit cable branch structure according to a third aspect of the present invention, a mounting member for mounting a wall surface is provided on a side portion of the separator.

[0010]

The conductor and the insulator at the connecting portion of the trunk are peeled to expose the conductor, and the sheath and the insulator at the tip of the branch line connected to the trunk are peeled to expose the conductor. After a while
The conductor of the main line and the conductor of the branch line are crimped and fixed using a crimp connector to form a crimp connection part. The crimping connection part connected by using this crimping connector is formed in a flat plate-shaped bottom plate, and in each of the branch paths of the separators, the partition walls forming the branch paths for the number of the branched wires are erected at predetermined intervals. Each crimp connection part is stored so as not to contact. Then, around the separator, a trunk line portion from the crimp connection portion to the insulator of the electric wire , a crimp connection portion, and a branch line portion from the crimp connection portion to the insulator of the electric wire are sealed with a mold resin.

[0011] Further, a plurality of partition walls are erected at predetermined intervals on a bottom plate formed of a flat plate to form a branch passage by connecting a crimp connection portion connected by a crimp connector. The crimping connection part, which is connected by crimping and fixing the conductor of the branch line with the crimping connector, is stored so that it does not touch each other, and then the lid that holds down the crimping connection part stored in the branch path of the separator from above is covered. . And
From the crimp connection, centering on the separator that covers the lid
The trunk line portion to the insulator of the electric wire , the crimp connection portion, and the branch line portion from the crimp connection portion to the insulator of the electric wire are sealed with a mold resin.

[0012]

Embodiments of the present invention will be described below. FIG. 1 shows an embodiment of a branch structure of a unit cable according to the present invention.

In FIG. 1, reference numeral 1 denotes a branch portion of a unit cable. A power line 3 connects the branch line 2 for each phase. The number of the branch lines 2 is six in the present embodiment, and the number of branch lines is seven including the branch line 2 and the power supply line 3. The branch line 2 exposes the conductor 4 by peeling the sheath and the insulator for a predetermined distance from the end of the electric wire. The power supply line 3 also exposes the conductor 5 by peeling the sheath and the insulator for a predetermined distance from the end of the power supply line 3. Then, the conductors for each phase are assembled and crimped and connected by the crimp connector 6.

Reference numeral 7 denotes a separator for separating the connection between the branch line 2 and the power supply line 3 so that the connection does not contact each other. 8 is a bottom plate formed in a flat plate shape,
Reference numerals 9, 10, 11, and 12 denote partition walls which stand on the bottom plate 8 at predetermined intervals, and a branch path 13 is formed by the partition walls 9 and 10, and a branch path 14 is formed by the partition walls 10 and 11.
A branch path 15 is formed by the partition wall 11 and the partition wall 12, respectively.

Reference numerals 16 and 17 denote fixtures for attaching the branch portion 1 of the unit cable to an indoor wall. The fixtures 16 and 17 are provided with screw holes 18 and 19 for fitting screws (not shown).

When connecting the conductors 4 of the plurality of branch lines 2 and the conductors 5 of the power supply line 3, first, for each of the branch lines 2, the sheath and the insulator are separated from the tip by a predetermined distance to expose the conductor 4. I do. On the other hand , the power supply line 3 also exposes the conductor 5 by peeling the sheath and the insulator by a predetermined distance from the end of the power supply line 3. And it and each conductor 4 and the conductor 5 of the plurality of branch lines 2 exposed by using a crimp connector 6 for each phase of the cores
Each crimp connected to form a crimp connection for each phase. Thereafter, as shown by the arrow A, B, C in Figure 1, formed for each phase
The crimped connection parts are separated from the partition walls 9, 10, 1 of the separator 7.
Of the branches 13 , 14 , 15 formed by
Each is fitted separately so that the respective crimp connections do not touch each other.

The branch 13 of the separator 7
As shown in FIG. 2, the entire crimp connection portions fitted to 14 and 15 are covered with the synthetic resin 20 from the sheath portion of the electric wire 2 to the sheath portion of the electric wire 3 by a molding die. When the resin is pressurized and sealed in the molding die, the adjacent pressure-bonded connecting portions are not contacted by the separator 7. In addition, this branch road 1
3, 14, 15 are formed to be slightly narrower than the thickness of the crimp connection portion, and the branch passages 13, 14, 15 are formed to be slightly narrower than the thickness of the crimp connection portion, so that the crimp connection portion is formed into a branch passage. 13, 14, and 15 are press-fitted, so that a more pressing effect can be obtained.

FIG. 3 shows another embodiment of the branch structure of the unit cable according to the present invention. In the figure, reference numeral 30 denotes a separator, which is a crimp connection part which is crimped using the crimp connector 6 of the electric wire 2 and the electric wire 3 shown in FIG.
This is for isolating and insulating each crimp connection portion so as not to contact each other, and is exactly the same as the separator 7 described in FIG. 31 is a bottom plate formed in a flat shape,
32, 33, 34, 35 is a partition wall that will be erected with a predetermined interval on the bottom plate 31, the branch passage 36 by the partition wall 32 and the partition wall 33, the branch passage 37 by the partition wall 33 and the partition wall 34 is, A branch path 38 is formed by the partition wall 34 and the partition wall 35, respectively. 39, 40, 41, 42 (4
0 is hidden, not I table in FIG. 3) is a notch, the notch 39 and 40 at both lower ends of the partition wall 32, notch 4
Reference numerals 1 and 42 are provided at both lower end portions of the partition wall 35, respectively. 43 and 44 are attachments for attaching the branch portion 1 of the unit cable to an indoor wall surface. Screw holes 45 and 46 for fitting screws (not shown) are provided in the attachments 43 and 44.

Reference numeral 50 denotes a lid for covering the separator 30. The lid 50 is provided with the separator 30.
Are open at the top, so that the branch paths 36, 3
The connection portions of the electric wires fitted to the wires 7 and 38 are covered and locked so as not to protrude. In the figure, reference numeral 51 denotes a top plate formed in a flat plate shape, and 52, 53, 54, and 55 denote locking rods that stand at four corners of the top plate 51, respectively. 5
Reference numerals 6, 57, 58, and 59 denote claws, which are locking rods 52, 53, 5,
4, 55 are provided at the tip. These claws 56, 5
7, 58 and 59 are cutouts 39, 40, 41 and 42 in FIG.
As shown in FIG.

As described above, the lid 3 is used to separate the separator 3.
By covering the upper part of 0, the connection portion is reliably surrounded in the left, right, up and down directions, and the injection portion can move only within the range, even if the injection portion moves, and can be molded reliably.

As shown in FIG. 4, holes 60 and 61 are formed so that the molding resin sufficiently flows into the separator 30 when the resin is molded with the synthetic resin 70 as shown in FIG. 4. .

The bottom plate 31 of the separator 30 and the lid 5
If the distance from the top plate 51 is smaller than the mold thickness,
The lid 50 is completely contained in the mold, and the appearance is improved.

[0023]

The present invention is configured as described above, and has the following effects.

[0024] In the branch structure of the unit cable according to the first aspect, the crimping connection portion formed by crimping the conductor of the main line and the conductor of the branch line using the crimping connector is provided in the branch path formed by the plurality of partition walls. Separated and stored, separator
Around the crimp connection, part of the trunk line, and part of the branch line
Because the entire structure is made by resin molding, the conductor of the trunk wire and the conductor of the branch wire crimped and fixed by the crimp connector
Without wrapping the insulating material crimp connection, other crimp connections
The insulation with the parts can be easily and reliably performed without skill, and the whole is mold-coated with a synthetic resin material.
Regardless of the injection pressure of the molding resin when it is possible to always obtain a constant quality of the unit cables, the branch connection punished
It is possible to reduce the man-hours of physical processing.

[0025] In the branch structure of the unit cable according to the second aspect, a crimp connection portion formed by crimping the conductor of the trunk line and the conductor of the branch line using the crimp connector is provided in a branch path formed by a plurality of partition walls. The lid which separates and accommodates and presses down the crimp connection part accommodated in the branch path of the separator from above is covered, and the separator covered with the lid is covered with the inside.
At the center , the main line part at a predetermined distance from the crimp connection part, and the crimp connection
Part and the branch line part at a predetermined distance from the crimp connection part
Due to the structure and sealing with resin, around the separator
In addition, the crimped connection part, the trunk line, a part of the branch line, and the whole are molded with resin. Therefore, the conductor of the trunk line and the conductor of the branch line crimped and fixed by the crimp connector. without wrapping the crimp contact <br/> connection part insulation material and easily without requiring skill
In addition , the crimp connection is more reliably separated into the branch road
Can be stored and insulated from other crimp connections ,
The molding when the whole is covered with synthetic resin
It is possible to obtain a unit cable having a constant quality regardless of the injection pressure of the resin, and to reduce the number of processes of the branch connection processing .

In the branching structure of the unit cable according to the third aspect of the present invention, since the mounting member for mounting the wall surface is provided on the side of the separator, the unit cable can be easily mounted anywhere in a short time.

[Brief description of the drawings]

FIG. 1 is an assembly configuration diagram showing an embodiment of a branch portion of a unit cable of the present invention.

FIG. 2 is a partially cutaway sectional view showing a branch portion of a resin-molded unit cable.

FIG. 3 is an assembly configuration diagram showing another embodiment of the branch portion of the unit cable of the present invention.

FIG. 4 is a partially cutaway sectional view showing a branch portion of a unit cable manufactured using the separator and the lid shown in FIG. 3;

FIG. 5 is a partially cutaway sectional view of a branch portion of a conventional resin-molded unit cable.

[Explanation of symbols]

1 …………………………………………………………………………………………………………………………………………………………………………………………………………………… 5 Conductor 6 Crimping connector 7, 30 ……………………… Separator 8, 31 …………………………………………………………………………………………………………………………………………………… ……… Partition walls 13, 14, 15 …………………… Branch roads 16, 17, 43, 44 …………………………… Mounting fixtures 20, 70 ……… ……………………………………… Synthetic resin 32, 33, 34, 35 ……………………………… Partition walls 36, 37, 38 ………………………… Forks 39,40,41,42 ………………… Notch 50 ………………. …………………………………………………………………………………………………………… Top plate 52,53,54,55 ……………… ... Locking rods 56, 57, 58, 59 ... Claws 60, 61 ... Holes

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-5-260624 (JP, A) Japanese Utility Model Showa 49-41277 (JP, U) Japanese Utility Model Showa 60-55075 (JP, U) Japanese Utility Model Showa 60- 64582 (JP, U) Japanese Utility Model Hei 4-68421 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01R 4/00 H01R 4/70 H01R 43/00 H02G 1/14 H02G 15/08

Claims (3)

(57) [Scope of request for utility model registration] 1. A bottom plate which is formed in the shape of a flat plate erected a plurality of partition walls at a predetermined interval to form a branch passage, crimped at crimp connectors and conductors of the mains conductors and the branch line to the branch passage a separator accommodating the crimp connection connected to, mainly in the separator, from the crimp connection of the trunk line
Up to the sheath of the trunk line or from the crimp connection portion of the trunk line to the insulator of the electric wire constituting the trunk line, the crimp connection portion, and the branch line from the crimp connection portion of the branch line.
A mold that seals from the crimp connection to the sheath of the branch line or to the insulator of the electric wire that constitutes the branch line
Diversion mechanism of the unit cables made of resin. Wherein the bottom plate is formed into a flat plate erected a plurality of partition walls at a predetermined interval to form a branch passage, crimped at crimp connectors and conductors of the mains conductors and the branch line to the branch passage the center and the separator accommodating the crimp connection that is connected to the lid of the crimp connection was overmolded by pressing from the top for accommodating the branch path of the separator, the separator overmolded the lid, The main line
From the crimp connection portion to the sheath of the trunk line or from the crimp connection portion of the trunk line to an insulator of an electric wire constituting the trunk line, the crimp connection portion, and the branch line from the crimp connection portion of the branch line. Of the branch line from the crimp connection portion of
Diversion mechanism of the unit cables made of mold resin for sealing the until insulator wires forming the sheath or until the branch line. 3. The branch structure of a unit cable according to claim 1, wherein a mounting member for mounting a wall surface is provided on a side portion of the separator.