JPH03233875A - Branch connector for shielded cable - Google Patents

Abstract

PURPOSE:To simplify branching work of shielded pair cables by putting engagement portions in conduction to each other, and putting pressure connection terminals in conduction to each other, which terminals are pressed into contact with respective bus-cable side and branch cable side insulated cables to be connected to each other. CONSTITUTION:Engagement terminal portions 12 to 14 are engaged with shielding material end portion processing portions S1, S1' provided at both ends of the branch portion of a bus cable C1 and the shielding material end portion processing portion S2 of a branch cable C2, respectively, so that the terminals are in conduction to each other. Insulated wires D1a, D2a inserted into respective guide channels 5, 6 are put in conduction to each other by a pressure connection terminal plate 21, for example. The engagement portions 12 to 14 each provided in a case are engaged in the respective processing portions S1, S1', S2 for the end portions of shielding material on the sides of the cables C1, C2 and the pressure connection terminals 21, 22 put in conduction to each other are engaged with insulated cables D1a, D2a, D1b, D2b to be connected to one another. Thus the shielding material of the bus cable C1 is electrically connected to that of the branch cable C2 and the insulated cables to be connected to one another are put in conduction to one another and branching of the cables from the bus cable C1 is achieved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a branch connector for a shielded cable in which a plurality of insulated wires are surrounded by a shielding material.

[Prior Art] Conventionally, there have been branch connectors for coaxial cables for shielded cables, but there have been no branch connectors for shielded pair cables that allow easy branching work.

[Problems to be Solved by the Invention] As described above, conventionally there has been no connector suitable for branching a shielded cable containing a plurality of insulated wires, and an object of the present invention is to provide such a connector. do.

[Means for Solving the Problems] The branch connector of the present invention is a branch connector for a shielded cable in which a plurality of insulated wires are surrounded by a shielding material, and is insulated by peeling off the outer skin and the shielding material from each of them. It has a case that accommodates a branch part on the bus cable side with exposed electric wires and a terminal on the branch cable side, and the case includes a positioning part for positioning both ends of the branch part on the bus cable side, and a terminal on the branch cable side. a conductive engaging portion that engages with the shield material on the bus cable side, a conductive engaging portion that engages the shield material on the branch cable side, and each exposed insulated wire on the bus cable side. A pressure contact terminal that breaks the covering of each exposed insulated wire on the branch cable side and engages with the internal conductor wire is formed, and a pressure contact terminal that breaks the covering of each exposed insulated wire on the branch cable side and engages with the internal conductor wire. are electrically connected to each other, and the pressure contact terminals that are in pressure contact with the insulated wires on the bus cable side and the branch cable side to be connected to each other are electrically connected to each other.

In the connector of the present invention, the case may be divided into a main body and a lid, and the engaging portion and the pressure contact terminal may be provided on the lid.

In addition, the lid body is composed of a front lid (upper lid) and a back lid (lower lid),
The engaging portion may be provided on the front cover, and the pressure contact terminal may be provided on the back cover. Moreover, it is of course possible to integrally form the pressure contact terminals that are electrically connected to each other.

[Operation] When connecting a branch cable to a bus cable using the connector described above, first, the outer cover of the branch part of the bus cable is removed, the shield material is peeled off, and the ends of the shield materials at both ends of the branch part are processed. Then, expose the internal insulated wires. Further, the terminals of the branch cables are also processed in the same way.

Then, the branch portion of the bus cable and the terminal of the branch cable are accommodated in the case of the connector and positioned respectively.

At the same time, the exposed insulated wires are grouped with those to be connected to each other and positioned within the case.

Then, the engaging portion provided on the case is engaged with the end processing portion of the shield material on the bus cable side, and the pressure contact terminals that are electrically connected to each other are respectively engaged with the insulated wires to be connected to each other.

As a result, the shielding material of the busbar cable and the shielding material of the branch cable are electrically connected, the insulated wires to be connected to each other are electrically connected, and branching from the busbar cable is achieved.

[Example code] Embodiments of the present invention will be described below with reference to the drawings.

First, a first embodiment will be described based on FIGS. 1 to 6. The branch connector M of this embodiment, as shown in FIG.
It has a resin case 1 consisting of a main body IA, an upper lid IB, and a lower lid IC. FIG. 2 shows the state of cable connections inside the case 1, in which the cable indicated by C1 is a continuous bus cable in the left and right direction, and the cable indicated by C2 is a branch cable. These cables CI and C2 are shielded cables of the same type, and consist of a pair of insulated wires DlaSDlb and D2aSD2b with insulation coating, a shield material surrounding the outer periphery, and a resin outer sheath surrounding the outer periphery. It is configured.

The branch part of the bus cable C1 and the terminal of the branch cable C2 have their outer skins removed, the shielding material peeled off,
Insulated wires DlaSDlb, D2a, and D2b are exposed. The branch portion of the bus cable C1 and the terminal of the branch cable C2 are inserted into predetermined positions within the case 1. Note that the peeled end portions of the shield material 31SS2 are gathered together on the outer skin side and subjected to well-known end treatment. In FIG. 2, the end portions of each shield material (the portions marked with an X in the figure) are indicated by symbols S1, s1', and s2.

The case main body IA has a rectangular plate shape that is thicker than the diameters of the cables CI and C2, and has a recess (positioning part) 2.3.4 with a semicircular cross section on its upper surface as shown in Fig. 3. , and a guide groove 5.6.7.8 continuous thereto is formed.

The recesses 2.3 are formed on the same straight line. These recesses 2.3 are for positioning both ends of the branch part of the bus cable C1, and as shown in FIG. Processing units St and St° are housed. Further, the recess 4 is formed parallel to the recess 3. This recess 4 is for positioning the end of the branch cable C2, and as shown in FIG. 2, the shielding material end processing portion S2 of the end of the branch cable C2 is accommodated therein.

Further, the guide grooves 5 and 6 are for guiding and positioning the insulated wires to be connected to each other, and both are formed adjacent to each other. Then, as shown in FIG. 2, the recess 2.
One insulated wire Dla on the bus cable C1 side is inserted into one of the guide grooves 5 connected to the recess 4, and one insulated wire D2 on the branch cable C2 side is inserted into the other guide groove 6 connected to the recess 4.
a is inserted.

Further, the guide grooves 7 and 8 are for inserting and positioning the insulated wires to be connected to each other, and both are formed adjacent to each other. Then, as shown in FIG. 2, the recess 3.
4, the other insulated wire Dlb on the bus cable C1 side is inserted, and the other insulated wire D2 on the branch cable C2 side is inserted into the other guide groove 8 that connects to the recess 4.
b is inserted.

Grooves 2a, 3a, and 4a are formed on the circumferential surface of each of the recesses 2.3.4, into which engaging terminal portions (retaining portions) 12.13.14 (see Fig. 4), which will be described later, are inserted, respectively. ing. The valley grooves 2a, 3a, 4a are formed perpendicularly to the axial direction of each recess 2.3.4, and guide and position the engaging terminal portion 12, 3.14 in a direction perpendicular to the cable CLC2. can do.

In addition, the guide groove 5.6 is formed with mutually parallel portions, and the press-contact terminal plate 21 (fifth
A rectangular hole 15 for inserting the case body IA is formed vertically through the case body IA. This hole 15
is slot-shaped, and is formed long in the direction perpendicular to the guide groove 5.6, and crosses both grooves 5.6 so that both ends thereof are full.
．． It is digging into the side wall of 6. Therefore, by inserting the pressure contact terminal board 21 into the hole 15 while sliding both ends of the pressure contact terminal board 21 into this bitten portion, the pressure contact terminal board 21 is guided and positioned perpendicularly to the guide groove 5.6. can do.

Similarly, a rectangular hole 16 is formed on the guide groove 7.8 side for inserting a press-contact terminal plate 22, which will be described later.

By inserting the press-contact terminal plate 22 into this hole 16, the press-contact terminal plate 22 can be guided and positioned perpendicularly to the guide groove 7.8.

The engaging terminal portions 12, 13, and 14 shown in FIG.
1, SF, and the shielding material end processing portion S2 of the branch cable C2, and all are made of one metal plate 11.
They are integrally constructed and are in a conductive relationship with each other. and,
These are fixed to the lower surface of upper i1B.

On the other hand, the pressure contact terminal plate 21 shown in FIG.
It is for making the insulated wires Dla and D2a (which are to be connected to each other) inserted into the inside conductive to each other, and has two cut teeth (pressure welding in the claims) for engaging each wire Dla and D2a. (equivalent to a terminal) 21a,
21b. The cut m21a cuts into the insulated wire Dla, as shown in FIG. 6, to break the resin coating and establish electrical connection with the internal conducting wire.

In order to achieve this biting effect well, as shown in FIG. 4, the upper lid IB is provided with receivers 18 and 18 for holding down the insulated wire Dla on both sides of the notch teeth 21a.

The other press-contact terminal plate 22 is for electrically connecting the insulated wires D2a and D2b (which should be connected to each other) inserted into each guide groove 7.8. It has two cut teeth 22a and 22b (corresponding to the pressure contact terminal in the claims) for engaging with D2b. Then, these two pressure contact terminal plates 21
．． 22 is fixed to the lower MIC.

By the way, above! IB, the lower lid IC is connected to the case body I by a hinge.
It may be integrated into A.

Next, the operation of the branch connector having the above configuration will be explained.

When pulling out the branch cable C2 from the bus cable C1 using a connector with such a structure, the 4" bus cable CI
Remove the outer skin of the branch, peel off the shield material, and process the ends of the shield material at both ends of the branch. Then, the internal insulated wires Dla and Dlb are exposed. Also, the terminals of the branch cable C2 are treated in the same way, and the insulated wires D2a,
Expose D2b.

Then, the branch part of the bus cable CI and the branch cable C2
The terminals are housed in the case body IA and positioned respectively. That is, the shielding material end processing portion s1. of the bus cable C1. The S cables are respectively accommodated in the recesses 2.3, and the shielding material end portion S2 of the branch cable C2 is accommodated in the recess 4. Also, the exposed insulated wire Dla of the bus cable CI
is inserted into the guide groove 5, and the other insulated wire Dlb is inserted into the guide groove 7. Also, insert the insulated wire D2a on the branch cable C2 side to be connected to the insulated wire Dla into the guide groove 6,
The insulated wire D2b of the branch cable 02 example to be connected to the insulated wire Dlb is inserted into the guide groove 8.

Then, cover the upper NIB on the upper surface of the case body IA.

Then, the engaging terminal portion 12 provided on the lower surface of the upper lid IB.
13 and 14 are the shield material end processing parts S1 and St, respectively.
, S2, and the shielding material of the bus cable C1 and the shielding material of the branch cable C2 are all electrically connected.

Next, the lower lid IC is fixed to the lower surface of the case body IA. Then, the pressure contact terminal plate 21.2 integrated into the lower cover 1C
2 are respectively inserted into the holes 15 and 6 of the case body IA, and as shown in FIG. Pressure contact. As a result, the insulated wires Dla and D2a are electrically connected to each other, and the insulated wires Dlb and D2b are electrically connected to each other. At this time, the receiving portion 18 provided on the upper lid IB is connected to each guide groove 5.6.7.
．． 8 and plays the role of holding down the insulated wire.

As mentioned above, the connector of this embodiment is connected to the case body IA.
Position each cable in the upper lid IB and lower MI
The connection work for branching is completed by simply placing C in order.

Next, a second embodiment of the present invention will be described with reference to FIGS. 7 to 10.

This embodiment shows an example of a connector that can perform branching at the same time as connecting bus cables to each other. In Figure 7,
Let CLCI' be the bus cable and C2 be the branch cable. In reality, this can be understood as an example where one cable is branched into two branches, but for convenience, the above definition and explanation will be given here.

The connecting portion of the bus cables C1, C1' in this embodiment corresponds to the branching portion of the bus cable CI in the first embodiment. The terminals of each of the cables C1 and C2 are insulated wires Dla and Dlb, respectively.

Dla', Dlb', D2a, D2b are exposed,
The ends of the shield material are treated. What is indicated by sl and sl'S2 is the shield material end processing portion.

The connector case 31 includes a case body 31A shown in FIG.
, the upper lid 31B shown in FIG. 8, and the lower lid 31 shown in FIG.
It is composed of C. On the top surface of the case body 31A,
As shown in FIG. 7, the recesses 2.3.4 of the first embodiment
Concave portions (positioning portions) 32, 33, and 34 corresponding to the above are formed.

The recess 32 is formed at the center of the left end of the case main body 31A in the width direction, and the recesses 33 and 34 are formed at the center of the right end of the case main body 31A in the width direction.

The circumferential surface of each recess 32, 33, 34 has an upper M31
Engagement terminal part (engaging part) 42.43 protruding from the lower surface of B
．． Grooves 32a, 33a, 34a for guiding and positioning 44
is formed. The engaging terminal portions 42, 43, 44 are the shield material end processing portions S of each cable C1, C1°, and C2.
1, SL', and S2 to be electrically conductive, and as shown in FIG. 8, they are formed of one metal plate 45 and are electrically conductive to each other. And, it is fixed to the lower surface of the upper lid 31B.

Incidentally, on the lower surface of the upper lid 31B, a resin support portion 18 is provided as in the first embodiment.

Further, each insulated wire Dla', Dlb', Dla, Dlb, D2a,
Guide groove 35.36.37.38.39 guiding D2b
．． 40 is formed. These guide grooves 35 to 40 all extend in parallel. Then, one pressure contact terminal 55, 56, 5 shown in FIG.
Holes for inserting 7.58.59.60 65.66.67.
68, 69, and 70 are open.

A first group of insulated wires D1a connected to each other,
The holes 65.67.69 passing through the guide grooves 35.37.39 for Dla and D2a are lined up in a row in the direction orthogonal to the guide grooves 35 to 40, and as shown in FIG. They are connected by J80 formed on the lower surface side. Pressure contact terminals 5 inserted into these holes 65, 67, 69
5.57.59 is a terminal board 8 as shown in FIG.
1 and are electrically connected to each other. Then, with the base of the terminal plate 81 inserted into the J80, the pressure contact terminals 55, 57, and 59 are inserted into each company's 65, 67, and 69.

The remaining holes 66, 68, and 70 are also arranged in a line in a direction orthogonal to the guide grooves 35 to 40 at positions spaced apart from the above hole row. The pressure contact terminals 56, 58, 60 inserted into these holes 66, 68, 70 are formed on a single terminal plate 82, as shown in FIG. 9, and are electrically connected to each other. By inserting the terminal plate 82 into the groove (as shown) that connects the terminals 66, 68, 70 of each company, the pressure contact terminals 56, 58, 60 are inserted into the terminals 65, 67, 69 of each company.

Note that the pressure contact terminals 55 to 60 are each insulated wire Dla'
, Dlb', Dla, DlbSD2a.

These are in the form of terminal plates 81 and 82, and are connected to the lower ff131G as shown in FIG.
is fixed on the top surface.

Next, the operation when connecting each cable with the branch connector having the above configuration will be explained.

First, the outer skins of the terminals of each cable CI, c1', and c2 are removed, the shielding material is peeled off, and the ends of the shielding material are treated. And the internal insulated wires Dla, DlbSDla
, Dlb', D2aSD2b are exposed.

Then, each terminal is housed in the case body 31A and positioned respectively. That is, the shielding material end processing portion s1 of the bus cable CI. s1' into recesses 32 and 33, respectively.
and the shield material end processing section S of the branch cable C2.
2 is stored in the recess 34.

Also, insert the exposed insulated wire Dla on the bus cable C1 side into the guide groove 37, and insert the other insulated wire Dib into the guide groove 37.
Insert into 8. Also, insert the insulated wire Dla on the cable CI' side to be connected to the insulated wire DIa into the guide groove 35,
Insert the other insulated wire D1b'' on the cable 01' side to be connected to the insulated wire Dlb into the guide groove 36. Also, insert the insulated wire D2 on the cable C2 side to be connected to the insulated wire D1a.
a into the guide groove 39, and insert the other insulated wire D2b on the cable C2 side to be connected to the insulated wire Dlb into the guide groove 40.
Insert into.

Then, the top cover 31B is placed over the top surface of the case body 31A. Then, top! The engaging terminal parts 32, 33, and 34 provided on the lower surface of 31B are respectively connected to the shield material end processing part S.
1, SL' and S2 are engaged, and the shielding materials of the cables C1 and C1° and the shielding materials of the branch cable C2 are all electrically connected.

Next, the lower lid 31C is fixed to the lower surface of the case body 31A. Then, the pressure contact terminal 55 integrated into the lower cover 31C
-60 are respectively inserted into the holes 65-70 of the case body 31A, and the insulated wires Dla',
Dlb', Dla, DlbSD2a and D2b are connected to each other for conduction. As a result, the insulated wire Dla'
, Dla and D2a are electrically connected to each other, and the insulated wire Dlb'
and DI, b and D2b are electrically connected to each other. At this time, the receiving portion 18 provided on the upper lid 1B is connected to each of the guide grooves 35 to 4.
0 and plays the role of holding down the insulated wire.

As described above, the connector of this embodiment has the case main body 31
The connection work for branching is completed by simply positioning each cable on A and then sequentially covering the upper cover 31B and lower cover 31C.

Note that in the eleventh second embodiment, the upper lids 1A, 3
A metal plate If, 45 is integrated on the inner surface of 1A and serves as a shield, but in a form that conducts with it,
It is more preferable to apply metal plates or metal plating to the side surfaces of the case bodies IA, 31A and the lower lid IC 131C so that the entire surface of the branch connector is covered with a shielding material.

Furthermore, in the first and second embodiments described above, the engaging terminal portion (
Engagement part) 12.13.14.42.43゜44 on top lid I
B, 31B, there are recesses for positioning 2.3.
4.32.33.34a A metal plate may be attached to the body, and teeth or the like (engaging portion) that engages with the shield material may be formed in this portion. In that case, each metal plate should be electrically connected. Further, in the above embodiment, the case 1131 is the main body IA,
31A, upper lid 1B, 31B, and lower MIC131C, the pressure contact terminal board was attached to the upper lid IB, 31B, and the lower M
1C131C may be omitted.

Next, a branch connector shown in FIG. 11 will be briefly described as another embodiment.

In this branch connector, a case body 91 is made of metal, and has holes (positioning parts) 91a and 91b on the side surface for pushing the bus cable C1 through, and a hole (positioning part) for inserting the branch cable C2. )91c. Each company 91a.

Engaging teeth (engaging portions) are formed around 91b and 91c, and by engaging these engaging teeth with the shield material end processing portions S1, Sbi, and S2, all of the shield material can be removed. It can be made conductive.

Further, the lid body 92 is provided with a terminal plate 93 having notch teeth (corresponding to the pressure contact terminals in the claims) 93a and 93b, and a terminal plate 94 having notch teeth 94a and 94b.

When connecting the branch cable C2 to the bus cable CI with this connector, first process the branch part of the bus cable C1 and the terminal of the branch cable C2 in the same manner as in the first embodiment, and connect the bus cable C1 to the case body 91. Hole 91a
, 91b, and also insert the end of the branch cable C2 into hole 9.
Insert into 1c. and a shielding material end processing portion St;
Engage the teeth on the periphery of each hole with Sl'S2. Then, cover with the lid 92. At this time, the terminal plate 93 conducts the insulated wires Dla and D2a that should be connected to each other, and the terminal plate 94 connects the other insulated wires D1b and D2b that should be connected to each other. By doing so, the branching is completed. In this case, it goes without saying that the terminal plates 93 and 94 should not be electrically connected to the case body 91A.

[Effects of the Invention] As explained above, according to the branch connector of the present invention,
Branches can be easily made from a shielded cable containing multiple insulated wires.

[Brief explanation of drawings]

1 to 6 are explanatory views of the first embodiment of the present invention,
Fig. 1 is a side view showing the external appearance of the branch connector of the embodiment, Fig. 2 is a view from the ■-■ arrow in Fig. 1, Fig. 3 is a view showing the top surface of the case body, and Fig. 4 is the bottom surface of the top cover. FIG. 5 is a view showing the upper surface of the lower cover, and FIG. 6 is a view showing the engaged state of the pressure contact terminal and the insulated wire. 7 to 1011 are explanatory diagrams of the second embodiment of the present invention, in which FIG. 7 is a plan view showing the internal structure of the connector with the top cover opened, FIG. 8 is a view showing the bottom surface of the top cover, and FIG. The figure shows the upper surface of the lower cover, and FIG. 10 is a sectional view taken along the line X--X in FIG. 7. Further, FIG. 11 is a schematic configuration diagram of still another embodiment of the present invention. C1, C1°...Bus cable, C2...
・Branch cable, D 1 a, D 1 b, D 1
a, D l b', D2a, D2b... Insulated wire, s 1. s 1', s 2... Shield material end processing portion, 1, 31... Case, IA. 31A, 91... Case body, 2, 3.4.3
2゜33.34...Concavity (positioning part), 91
a, 91b, 91c...hole (positioning part), 1
2,13゜14.42.43.44...Engaging terminal part (retaining part), 21a, 21b, 22a, 22b, 9
3a, 93b, 94a, 94b... Notch teeth (pressure contact terminal), 55-60... Pressure contact terminal, 21
, 22, 93.94... Press contact terminal plate, 81.8
2...Terminal board.

Claims (1)

[Claims] A branch connector for a shielded cable consisting of a plurality of insulated wires surrounded by a shielding material, and includes a branch part on the bus cable side and a terminal on the branch cable side, each of which has its outer sheath and shielding material peeled off to expose the insulated wires. The case includes a positioning part for positioning both ends of the branch part on the bus cable side, a positioning part for positioning the terminal on the branch cable side, and a conductive part that engages with the shielding material on the bus cable side. a conductive engaging portion that engages with a shield material on the branch cable side, a pressure contact terminal that tears the covering of each exposed insulated wire on the bus cable side and engages with the internal conductor wire, and a branch cable. a pressure contact terminal that breaks the sheath of each exposed insulated wire on the side and engages the internal conductor;
A branch connector for a shielded cable, wherein the engaging portions are electrically connected to each other, and the pressure contact terminals that engage insulated wires to be connected to each other are electrically electrically connected to each other.