JPH0575967U - Unit cable branch structure - Google Patents

Abstract

(57) [Abstract] [Purpose] Anyone can easily and surely insulate without branching the insulation tape around the branch connection between the trunk conductor and the branch conductor, which are crimped and fixed by the crimp connector. Instead, consistent quality is obtained and the number of processing steps is reduced. [Structure] A sheath and an insulator at a connection portion of a trunk line are peeled off to expose a conductor, and a sheath and an insulator at a tip of a branch line connected to a trunk line are stripped off to expose a conductor. After that, the conductor of the main line and the conductor of the branch line are crimp-fixed and connected for each phase by a crimp connector. The connection part connected by this crimp connector is stored on a flat plate so that each connection part does not come into contact with each branch path of a separator formed by standing up a partition wall that forms a branch path of the number of electric wires branching at a predetermined interval. To do. Then, the separator, the part of the main line, the branch-connected conductor, and part of the branch line are collectively resin-molded.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a branch portion of a unit cable, and particularly, without the need for wrapping an insulating tape on the branch connection portion between the conductor of the branched wire and the conductor of the branched wire crimped and fixed by a crimp connector, it can be easily performed without skill. The present invention relates to a branch structure of a unit cable that can be insulated and can always obtain a unit cable of constant quality regardless of the injection pressure.

[0002]

[Prior Art]

 With the unitization of houses in recent years, construction materials have been unitized, most of the construction material units are manufactured at the housing supplier's factory, and blocks of each unit are assembled and constructed on site. Even in the case of indoor wiring in such a unit housing system, an electrician cut multiple cables to connect at the site such as in the ceiling and peeled off the covering material of the terminal, and connected each terminal using a crimp connector. After that, insulation treatment is applied. However, the site space such as the ceiling is small, and it takes more time than necessary to carry out wiring such as cable connection processing in such a narrow place, complete connection of the cable, insulation of the connection part, etc. In this respect, it was a cause of lack of quality safety. In addition, when resin molding is applied to the processing of the cable connection part, it takes a long time to carry out the molding work when mounting the cable connection part by carrying a vulcanization mold etc. on site, which is not practical. There was a problem.

Therefore, in recent years, in order to improve workability, a housing harness (unit cable) formed by pre-assembling branch connection processing of cables has been developed.

The branch portion 100 of the unit cable that 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 partly peeled off to expose the conductor 120. On the other hand, the sheath and the insulator of the electric wire 130 connected to the electric wire 110 are partly peeled off to expose the conductor 140. Then, the conductor 120 and the conductor 140 are crimp-connected by a crimp connector 150, and an insulating material 160 is wound on the conductor 120 to cover the whole portion from the sheath portion of the electric wire 110 to the sheath portion of the electric wire 130 with a synthetic resin material. Then configured. As the insulating material 160, a heat shrinkable tube, a self-fusing tape, an insulating cap, or the like is used. 170 and 180 are mounting flanges, which are formed on both ends of the branch portion 100 by resin molding.

[0005]

[Problems to be solved by the device]

 As described above, the conventional branch structure of the unit cable is similar to the branched electric wire 110 in which the sheath and the insulator are peeled off to expose the conductor 120, and the branched electric wire 130 in which the sheath and the insulator are peeled to expose the conductor 140 is branched. A crimp connector 150 is used for crimp connection, and a plurality of connecting portions in which an insulating material 160 is wound so as to cover the crimp connector 150 are put together, and the whole is mold-coated with a synthetic resin material. For this reason, the branch conductor connecting portion press-fitted by the crimp connector 150 may be offset in one of the vertical directions due to the injection pressure of the resin during resin molding. The offset of the branch conductor connection part reduces the thickness of the mold with respect to the branch conductor connection part.If the offset of the branch conductor connection part is extremely large, the branch conductor connection part is placed on the surface of the resin mold part. It has a problem that it does not always obtain a constant quality because it pops out.

The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to provide a branched wire conductor and a branched wire conductor that are crimped and fixed by a crimp connector. It is possible to easily and reliably insulate the branch connection part of the product without wrapping the insulation tape without the need for skill, and it is possible to obtain a unit cable of consistent quality regardless of the injection pressure. The purpose is to provide a unit cable branch structure that can be reduced.

[0007]

Means for Solving the Problems The branch structure of a unit cable according to the present invention is such that a main conductor and a branch conductor are crimped in a branch passage of a separator in which partition walls are erected at predetermined intervals on a flat plate. A conductor, which is pressed and fixed by a connector to be connected, is housed, and the separator, a part of the main line, the branched-connected conductor, and a part of the branch line are resin-molded.

In addition, the branching structure of the unit cable of the present invention is such that the trunk conductor and the branching conductor are crimped by a crimp connector in the branch passage of the separator in which partition walls are erected at predetermined intervals on a flat plate. A conductor that is fixedly connected is stored, and a lid body that presses down a branch conductor connection portion that is stored in the branch passage of the separator is covered, a separator that covers the lid body, and a part of the trunk line. The branch-connected conductor and a part of the branch line are resin-molded.

Then, it is preferable to provide a mounting tool for wall mounting on the side portion of the separator.

[0010]

[Action]

 The sheath and the insulator at the connecting portion of the trunk line are peeled off to expose the conductor, and the sheath and the insulator at the tip of the branch line connected to the trunk line are peeled off to expose the conductor. After that, the main conductor and the branch conductor are crimped and fixed with a crimp connector to connect them. The connecting parts connected by this crimp connector should be installed on a flat plate so that each connecting part does not come into contact with each branching path of a separator that is erected with a partition wall that forms a branching path for the number of wires branching at a predetermined interval. To store. Then, the separator, a part of the main line, a branch-connected conductor, and a part of the branch line are resin-molded.

[0011] Further, each connecting portion is provided in each branch passage of a separator formed by standing up a partition wall which forms a branch passage having the number of electric wires for branching a connecting portion connected by a crimp connector on a flat plate at a predetermined interval. After being stored so as not to contact with each other, a lid body for pressing down the branch conductor connecting portion stored in the branch passage of the separator is covered. Then, the separator covering the lid body, a part of the main line, the branch-connected conductor, and a part of the branch line are resin-molded.

[0012]

【Example】

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

In the figure, reference numeral 1 is a branch portion of a unit cable. Reference numeral 3 is a power supply line, which connects the branch line 2 for each phase. In this embodiment, the number of branch lines 2 is 6, and the number of branch lines is 7, including the branch lines 2 and the power supply lines 3. The branch wire 2 exposes the conductor 4 by peeling off the sheath and the insulator for a predetermined distance from the tip of the wire. Also, for the power supply line 3, the sheath and the insulator are peeled off from the tip of the power supply line 3 by a predetermined distance to expose the conductor 5. Then, the conductors for each phase are assembled and crimp-connected by the crimp connector 6.

Reference numeral 7 is a separator for separating the connecting portion between the branch line 2 and the power supply line 3 so that the connecting portions do not contact each other. Reference numeral 8 is a bottom plate formed in a flat plate shape, and reference numerals 9, 10, 11, and 12 are partition walls that stand upright on the bottom plate 8 with a predetermined interval. A branch passage 14 is formed by 10 and the partition wall 11, and a branch passage 15 is formed by the partition wall 11 and the partition wall 12.

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

When connecting the conductor 4 of the branch line 2 and the conductor 5 of the power supply line 3, first, the sheath 4 and the insulator are separated by a predetermined distance from the tip of the branch line 2 to expose the conductor 4, and the power supply line 3 is exposed. On the other hand, the conductor and the conductor 5 are exposed by peeling the sheath and the insulator for a predetermined distance from the tip of the power supply line 3. Then, the conductors 4 and 5 are crimp-connected by the crimp connector 6 for each phase of the wire core, and then, as shown by arrows A, B, and C in FIG. The crimp connections are fitted into the branch paths 13, 14, 15 formed by 10, 11, 12 in separate branch paths so that they do not contact each other.

The crimping connection part fitted into the branch passages 13, 14, 15 of the separator 7 is moved from the sheath portion of the electric wire 2 to the sheath portion of the electric wire 3 by a molding die as shown in FIG. Then, the whole is mold-coated with the synthetic resin 20. When the resin is pressurized and sealed in the molding die, the separators 7 do not contact the crimping connection portions adjacent to each other. The branch passages 13, 14 and 15 are formed to be slightly narrower than the thickness of the crimp connection portion, and the branch passages 13, 14 and 15 are formed to be slightly narrower than the thickness of the crimp connection portion by crimping. The connection portion is press-fitted into the branch passages 13, 14 and 15, so that a more pressing effect can be provided.

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 for separating the connection portion of the electric wire 2 and the electric wire 3 shown in FIG. 1 using the crimp connector 6 so that the connection portions do not contact each other. It is exactly the same as 7. Reference numeral 31 is a bottom plate formed in a flat plate shape, and 32, 33, 34, and 35 are partition walls that stand upright on the bottom plate 31 with a predetermined interval. The partition wall 34 and the partition wall 34 form a branch path 37, and the partition wall 34 and the partition wall 35 form a branch path 38, respectively. 39, 40, 41, 42 (40 is hidden and not shown in FIG. 3) are notches, the notches 39, 40 are at both lower ends of the partition wall 32, and the notches 41, 42 are both lower ends of the partition wall 35. It is provided in each section. Reference numerals 43 and 44 denote attachments for attaching the branch portion 1 of the unit cable to the indoor wall surface. The attachments 43 and 44 are provided with screw holes 45 and 46 into which screws (not shown) are fitted.

Reference numeral 50 denotes a lid, which is for covering the separator 30. Since the separator 30 is open at the top, the lid 50 covers and locks the connecting portions of the electric wires fitted in the branch passages 36, 37 and 38 of the separator 30 so as not to pop out. In the figure, 51 is a top plate formed in a flat plate shape, and 52, 53, 54, 55 are locking rods provided upright at the four corners of the top plate 51. Reference numerals 56, 57, 58 and 59 are claws, which are provided at the tips of the locking rods 52, 53, 54 and 55. The claw portions 56, 57, 58 and 59 are configured to engage with the notches 39, 40, 41 and 42, respectively, as shown in FIG.

By thus covering the upper portion of the separator 30 with the lid body 50, the connecting portion is reliably surrounded in the left-right and up-down directions, and even if the connecting portion moves due to the injection pressure, it is within that range. Can only move and can be reliably molded.

Reference numerals 60 and 61 denote holes, which are formed so that the molding resin sufficiently flows into the separator 30 when resin molding is performed with the synthetic resin 70 as shown in FIG. 4 using a molding die. is there.

If the space between the bottom plate 31 of the separator 30 and the top plate 51 of the lid 50 is made narrower than the mold thickness, the lid 50 is completely contained in the mold and the appearance is improved.

[0023]

[Effect of the device]

 Since the present invention is configured as described above, it has the following effects.

In the branch portion structure of the unit cable according to the first aspect of the present invention, the connection portion in which the conductor of the main line and the conductor of the branch line are crimp-connected by using the crimp connector is housed in the branch path formed by the plurality of partition walls. Since the entire structure is molded with resin, the branch connection between the main conductor and the branch conductor crimped and fixed with a crimp connector does not require any insulation tape and can be easily and securely made without any skill. Insulation can be achieved, and a unit cable of consistent quality can be obtained regardless of the injection pressure, and the number of processing steps can be reduced.

According to another aspect of the present invention, there is provided a branch portion structure for a unit cable, wherein a connection portion obtained by crimping a main conductor and a branch conductor using a crimp connector is housed in a branch path formed by a plurality of partition walls. After that, the cover is covered so as to press down the branch conductor connection part, and the whole is molded with resin.Therefore, the branch connection part between the trunk line conductor and the branch line conductor crimped and fixed by the crimp connector. Can be easily and reliably insulated without wrapping it with insulating tape, and a unit cable of consistent quality can be obtained regardless of injection pressure, further reducing the number of processing steps. Can be achieved.

In the branched structure of the unit cable according to the third aspect of the invention, since the wall mounting fixture is provided on the side of the separator, it can be easily mounted anywhere in a short time. ..

[Brief description of 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 branched portion of a resin-molded unit cable.

FIG. 3 is an assembly 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 body shown in FIG.

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

[Explanation of symbols]

1 ………………………………………………………… Unit cable branch 2,3 ……………………………………………… Wire 4. 5 ……………………………………………… Conductor 6 …………………………………………………… Crimping connector 7,30 ………… ……………………………………… Separator 8,31 ……………………………………………… Bottom plate 9,10,11,12 …………………… … Partition wall 13,14,15 ……………………………… Branch 16,17,43,44 ………………………… Mounting fixture 20,70 ………… …………………………………… Synthetic resin 32, 33, 34, 35 …………………… Partition wall 36, 37, 38 ………………………………………… Branch 39,40,41,42 ………………………… Notch 50 ……………… ……………………………………… Lid 51 ………………………………………………… Top plate 52,53,54,55 ……………… ………… Locking rod 56,57,58,59 ………………………… Claw 60,61 ………………………………………… Hole

[Procedure amendment]

[Submission date] April 14, 1992

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 2

[Correction method] Change

[Correction content]

[Fig. 2]

Claims (3)

[Scope of utility model registration request] 1. A separator in which partition walls are erected at predetermined intervals on a flat plate, and the conductors of the trunk line and the branch lines are crimped and fixed by a crimp connector to accommodate the connected conductors, and the separator is provided. And a branch portion structure of a unit cable formed by resin-molding a part of the trunk line, the branch-connected conductor, and a part of the branch line. 2. A separator in which partition walls are erected at predetermined intervals on a flat plate, and the conductors of the trunk line and the branch lines are crimped and fixed with a crimp connector to accommodate the conductors, and the separator is stored. A cover for pressing down a branch conductor connecting portion to be housed in the branch passage, a separator covering the cover, a part of the main line, the branch-connected conductor, and a part of the branch line The branch structure of the unit cable, which is made by molding and resin. 3. A structure for branching a unit cable, in which a mounting tool for mounting a wall surface is provided on a side portion of the separator.