JP2001291540A - Cable connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To connect an inner conductor and a connector-side inner-conductor terminal of a cable efficiently, surely and with a minimum excess length in the open space without any hindrance. SOLUTION: A connector B is constituted by connecting a first terminal body B1 connected to the counter-connector side and a second terminal body B2 connected to the cable side. An inner conductor 3 of a cable 1 is connected to an inner conductor terminal 16 of the second terminal body B2 in the opened and all exposed surroundings and in a good condition without any hindrance, and then it is constituted that the second terminal body B2 is connected to the first terminal body B2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable connector used for connecting a shielded cable or a coaxial cable.

[0002]

2. Description of the Related Art The prior art will be described by taking a shield connector attached to the end of a shielded wire as an example.

Here, a two-core shielded wire having two inner conductors (signal wires) is taken as an example of the shielded wire.

As shown in FIGS. 15 to 17, a shield wire 1 has an outer conductor (shield layer) 4 on the outer periphery of inner conductors 3 and 3 covered by coating layers 2 and 2, and a jacket 5 on the outermost periphery. It is connected to the shield connector A in a state where the jacket 5 is peeled off at the terminal portion and the outer conductor 4 is turned upside down.

[0005] The shield connector A is formed by mounting outer conductor terminals 8 on the outer sides of inner conductor terminals (press-contact terminals) 6 and 6 via a dielectric 7. 2 and is press-connected to the inner conductor 3.

The outer conductor terminal 8 is integrally provided with a barrel 8a having a U-shaped cross section at the shield wire side end, and the outer conductor 4 is caulked to the barrel 8a.

[0007] In FIGS.
This is a fitting guide hole for guiding the inner conductor terminal of the mating connector fitted and connected to the inner conductor terminals 6 and 6.

[0008]

Here, the outer conductor terminal 8
The connector connecting portion 8b to be fitted to the mating connector is formed in a cylindrical shape, and the other portions connected thereto are formed in a U-shaped cross section. The inner conductor terminals 6, 6 are inside the outer conductor terminal 8, and the connector It is attached so as to protrude from the connection portion 8b to the cable side.

That is, the inner conductor terminals 6 and 6 are mounted in such a manner that the lower and right and left sides are surrounded by walls, and the front is also closed by the cylindrical connector connecting portion 8b.

Therefore, in this limited space, the space between the inner conductors 3, 3 is shaped and inserted so as to match that of the inner conductor terminals 6, 6, and is finely press-connected to the inner conductor terminals 6, 6. Since an operation has to be performed, there has been a problem that this connection work is very troublesome and inefficient, and the connection state tends to be uncertain.

Further, in order to increase the degree of freedom of the connection operation, the outer conductor 4 must be long inverted to expose the inner conductors 3 and 3 together with the covering layer 2 for a longer time.
The disadvantages are that noise is easily generated and that processing of the extra length after connection is troublesome.

Such a problem is particularly remarkable in the case of a multi-core shielded wire such as the two-core shielded wire illustrated here. In addition to the shielded wire, basically the same configuration and connection method are used. There was also a coaxial line to take.

SUMMARY OF THE INVENTION The present invention provides a cable connector capable of efficiently, reliably, and with a minimum extra length between a cable inner conductor and a connector-side inner conductor terminal.

[0014]

According to a first aspect of the present invention, there is provided a first terminal body having inner and outer conductor terminals connected to inner and outer conductor terminals of a mating connector, and an inner and outer conductor connected to both inner and outer conductors of a cable. The second terminal body having both conductor terminals is configured as a separate component, and the two terminal bodies are configured to be coupled in a state where the inner and outer conductor terminals are connected to each other.

According to a second aspect of the present invention, in the configuration of the first aspect, as the multi-core cable connector, a plurality of inner conductor terminals respectively corresponding to the inner conductors of the multi-core cable are provided on both terminal bodies.

According to a third aspect of the present invention, in the configuration of the first or second aspect, as means for connecting the inner conductor terminals of both terminal bodies, a connection hole is provided in one inner conductor terminal and the connection hole is provided in the other inner conductor terminal. Each of the connecting pieces is inserted into a hole and connected by caulking.

According to a fourth aspect of the present invention, in the configuration of the first or second aspect, as the means for connecting the inner conductor terminals of the both terminal bodies, welding is performed by phase joining and welding to the inner conductor terminals of the both terminal bodies. A connection portion is provided.

According to a fifth aspect of the present invention, in the configuration of the first or second aspect, as a means for connecting the inner conductor terminals of both terminal bodies, a pair of press contact blades are provided on one inner conductor terminal, and the other inner conductor terminal is provided on the other inner conductor terminal. A pressure contact portion sandwiched between the pressure contact blades is provided.

According to a sixth aspect of the present invention, in the configuration of the fifth aspect, the to-be-contacted portion is twisted.

According to a seventh aspect of the present invention, in the configuration of any one of the first to sixth aspects, the outer conductor terminal is connected to an outer conductor of the cable by connecting the outer conductor terminal of the second terminal body to the outer conductor of the cable. The outer conductor terminal is configured to pierce the cable jacket and connect to the outer conductor.

According to an eighth aspect of the present invention, in the configuration of the seventh aspect, a connecting leg is provided on the outer conductor terminal of the second terminal body, and a barrel is provided on the outer conductor terminal of the first terminal body. Is wound around the outer sheath of the cable together with the connection leg, and the connection leg is brought into contact with the barrel to connect the outer conductor terminals.

According to a ninth aspect of the present invention, in the configuration of the eighth aspect, the outer conductor terminal of the second terminal body is formed in a U-shape, and a bottom portion of the U-shaped outer conductor terminal is connected to the barrel as a connecting leg. It is configured to be in contact.

According to a tenth aspect of the present invention, in the configuration of the eighth aspect, a pair of outer conductor terminals facing each other is provided on the second terminal body, and the lower end portions of the two outer conductor terminals are used as connection legs, so as to face each other. Alternatively, it is configured to bend inward and contact the barrel.

According to an eleventh aspect of the present invention, in the configuration according to any one of the first to tenth aspects, the second terminal body is provided with a pair of inner conductor terminals facing each other, and the two inner conductor terminals and the inner conductor of the cable are provided. As a means for connecting the inner conductor, the inner conductor of the cable is sandwiched between the two inner conductor terminals to be brought into pressure contact with each other.

According to a twelfth aspect of the present invention, in the configuration of the eleventh aspect, the inner conductor terminals of the second terminal body are formed in a plate blade shape, and the two inner terminals are pierced through the inner conductor coating layer of the cable. It is configured to be in contact with a conductor.

According to the above construction, the connection operation between the inner conductor on the cable side and the inner conductor terminal on the connector side is performed under a favorable condition free from obstruction by the second terminal body, which is an entirely exposed portion having an open periphery. It can be performed efficiently and a reliable connection state can be obtained. In this connection, the extra length of the inner conductor can be minimized.

The effect of this point is particularly remarkable in the multi-core cable according to the second aspect.

Here, as a means for connecting the inner conductor terminals of both terminal bodies, a connecting piece provided on one inner conductor terminal body is inserted into a connection hole provided on the other inner conductor terminal body and swaged. According to the configuration of the third aspect that takes the means, the terminals can be easily connected only by caulking operation.

Further, according to the constitutions of the fourth and fifth aspects, both inner conductor terminals can be connected more reliably and firmly by welding (claim 4) or pressure welding (claim 5).

On the other hand, the outer conductor terminal of the second terminal body is formed in the shape of a plate blade, which is pierced through the jacket of the cable and connected to the outer conductor. Since the work of exposing the outer conductor (shield layer in the case of a shielded wire) and turning it over is not required, the connection work can be performed more efficiently.

According to the structure of the eleventh and twelfth aspects, the inner conductor of the cable is sandwiched between the pair of inner conductor terminals of the second terminal body and pressed against each other, so that both can be reliably connected. In particular, in claim 12, in order to pierce the plate-shaped terminal both through the inner conductor coating layer and press-contact the inner conductor,
There is no need to remove the coating of the inner conductor, and this connection operation can be simplified.

[0032]

1 to 14 show an embodiment of the present invention.
It will be explained by.

In the following embodiment, a shield connector for a two-core shielded wire is taken as an example to be applied according to the description of the prior art.

First Embodiment (See FIGS. 1 to 9) A connector B according to this embodiment is divided into two parts including a first terminal body B1 connected to a mating connector and a second terminal body B2. After the shield wire 1 is connected to the second terminal body B2, the second terminal body B2 is electrically and mechanically coupled to the first terminal body B1, and the connector B is assembled.

The two terminal bodies B1 and B2 are configured as follows.

First Terminal Body B1 This terminal body B1 comprises an outer conductor terminal 13 mounted on the outside of inner conductor terminals 11 and 11 via a dielectric 12 as shown in FIGS. ing. In the figure, 14 and 14 are the first
And a guide hole for guiding the inner conductor terminal of the mating connector fitted and connected to the terminal body B1 toward the inner conductor terminals 11 and 11.

As shown in FIGS. 3 to 5, etc., the inner conductor terminals 11, 11 are behind (the shield wire side) the cylindrical connector connecting portions 11a, 11a into which the inner conductor terminals (male terminals) of the mating connector are inserted. 1) Connection piece 1 bent in L-shape
1b, 11b are integrally provided. As shown in FIG. 7, the connector connection portions 11a, 11a are fitted into the fitting guide holes 14, 14 of the dielectric 12, and the connection pieces 11b, 11b are formed.
Are mounted so as to protrude from the connector connection portion 13a of the outer conductor terminal 13 to the cable side.

At the end of the outer conductor terminal 13 on the shield wire side, the entire shield wire 1 is caulked and fixed, and
A barrel 13b having a U-shaped cross section for connection to an outer conductor terminal (described later) of the terminal body B2 is provided.

Second Terminal Body B2 As shown in FIGS. 1 to 3 and the like, the terminal body B2 has a pair of inner conductor terminals 16, 16 at the front end of a terminal board 15 made of an insulator such as a synthetic resin. Outer conductor terminals 17 are attached to the rear end, respectively.

Each of the inner conductor terminals 16, 16 has a connection hole 16a at the front end and a pair of terminal plates 16b, 16b at the rear end.

The two terminal plates 16b, 16b are formed in the shape of a U-shaped plate, and the two terminal plates 16b, 16b penetrate the inner conductor coating layer 2 of the shielded wire 1 as shown in FIGS. Contacting the inner conductor 3 with the inner conductor terminal 1
6 and the inner conductor 3 are connected.

The outer conductor terminal 17 is formed in a U-shaped plate shape as a whole. As shown in FIGS. 7 and 9, the bottom side 17a is located on the lower surface side of the terminal board 15 and both side sections 17b are provided. , 17b are mounted so as to protrude above the substrate.

The both side portions 17b, 17b are formed in the shape of a pointed plate blade, break through the jacket 5 of the shield wire 1 from below, and come into contact with the outer conductor (shield layer) 4. Thereby, the outer conductor 4 and the outer conductor terminal 17 are connected.

After the shield wire 1 is connected to the second terminal body B2 as described above, as shown in FIG. 3 and FIGS.
Piece 11b of inner conductor terminal 11 in terminal body B1
Is inserted into the connection hole 16a of the inner conductor terminal 16 in the second terminal body B2 and caulked, thereby connecting the inner conductor terminals 11 and 16 of both terminal bodies B1 and B2.

(Ii) The outer sheath 5 of the shield wire 1 is fixed together with the outer conductor terminal 17 of the second terminal body B2 to the barrel 13b of the outer conductor terminal 13 of the first terminal body B1. At this time, when the bottom portion 17a of the outer conductor terminal 17 is pressed against the inner surface of the barrel 13b, the two terminals B
The outer conductor terminals 13 and 17 of 1 and B2 are connected to each other.

By the operations (i) and (ii), the terminal members B1 and B2 are electrically and mechanically connected to each other to assemble the connector B.

According to this connector structure, the shield wire 1
The connection work between the inner and outer conductors 3 and 4 and the connector B may be performed on the second terminal body B2 before the connection. It can be performed under good conditions.

For this reason, in comparison with a conventional connector which had to be shaped in accordance with the terminal interval in a limited and narrow space and inserted into the internal conductor terminal on the connector side, this connection operation was difficult. Can be easily and efficiently performed, and a reliable connection state can be obtained.

Further, since the connection operation is facilitated, the extra length of the inner conductor 3 can be minimized.

Second Embodiment (see FIGS. 10 and 11) In the following embodiments, only differences from the first embodiment will be described.

In the first embodiment, the outer conductor terminal 17 of the second terminal body B2 is formed as a single U-shaped part, whereas in the second embodiment, a pair of separated outer conductor terminals 1 are formed.
8, 18 are provided facing each other.

The two terminals 18, 18 are formed in the shape of a pointed plate blade and are mounted so as to penetrate the terminal board 15, and as shown in FIG. 11, the outer conductor terminals 13 of the first terminal body B1. When caulked by the barrel 13b, the lower ends 18a, 18 passing through the holes 13c, 13c of the barrel 13 are formed.
a is curled outward, contacts the barrel 13 b, and is connected to the outer conductor terminal 13.

The lower end portions 1 of the outer conductor terminals 18 and 18
8a and 18a are desirably curved outwardly in advance as shown in the drawing so as to easily curl outwardly as described above.

Alternatively, both terminal lower ends 18a, 18a may be curled inward.

Third and Fourth Embodiments (See FIGS. 12 to 14) In the first embodiment, the inner conductor terminals 1 of both terminal bodies B1 and B2 are provided.
As a means for connecting the first and the second 16 with each other, a means for inserting the connection piece 11b into the connection hole 16a and caulking is used.
In the third embodiment, as shown in FIGS.
A means is adopted in which the end portions (weld connection portions) 11c and 16c of the first and the 16th are joined to each other and welded.

Here, "welding" includes soldering (referred to as so-called general brazing).

In this case, the connection piece 11b of the first embodiment,
The connection hole 16a is of course unnecessary.

In this embodiment, as shown in FIG. 13, an electrode for guiding one (lower) electrode 20 of the welding electrodes 19, 20 to the first terminal body B1 to the welding portion, as shown in FIG. A through hole 21 is provided.

On the other hand, in the fourth embodiment, as shown in FIG. 14, a pair of U-shaped press contact blades 11d, 11d are provided on the inner conductor terminal 11 on the first terminal body B1 side, and the second terminal body B2 side. The intermediate portion 16d of the inner conductor terminal 16 of FIG.
Means of being sandwiched between 11d and brought into pressure contact for connection are taken.

In this case, the intermediate portion 16d of the inner conductor terminal 16, which is the portion to be pressed, is twisted as shown in the drawing so as to obtain a strong and stable pressure contact state in which no detachment or the like occurs. Pressing blades 1 on both sides of the center of the twist
It is desirable to make 1d and 11d contact.

Other Embodiments (1) As a modification of the means for connecting the inner conductor terminals 11 and 16 of both terminal bodies B1 and B2 in the first embodiment, a connection piece 11b is provided in a manner opposite to the first embodiment. May be provided on the second terminal body B2 side, and the connection hole 16a may be provided on the first terminal body B1 side.

(2) In each of the above embodiments, the shield wire 1
Of the inner conductor 3 of the second terminal body B2.
As a means for connection, the pair of terminal plates 16b, 16b are formed in the shape of a U-shaped plate, and the inner conductor coating layer 2 is pierced and pressed against the inner conductor 3.
6b, 16b may be flat, and the inner conductor 3 may be sandwiched between the terminal plates 16b, 16b with the covering layer 2 peeled off.

(3) In each of the above embodiments, a connector used for a two-core shielded wire is exemplified. However, the present invention is also applied to a connector used for a three-core or more multi-core shielded wire or a single-core shielded wire. Can be applied.

The present invention can be applied not only to shielded wires but also to coaxial wires.

[0065]

As described above, according to the cable connector of the present invention, the cable is divided into the first terminal connected to the mating connector and the second terminal connected to the cable.
Since the inner conductor of the cable and the inner conductor terminal of the connector are configured so as to be connectable under favorable conditions with no obstruction, that is, the second terminal body, which is an entirely exposed portion having an open periphery, it can be connected to a conventional connector. In comparison, this connection operation can be performed efficiently in a short time, and a reliable connection state can be obtained.

Further, since the extra length of the inner conductor can be reduced to a minimum with the simplification of the connection operation, noise is generated by the extra length portion, and post-processing of the extra length portion becomes troublesome. No problem.

According to the third aspect of the present invention, as means for connecting the inner conductor terminals of the first and second terminal bodies,
Since the connection piece provided on one inner conductor terminal body is inserted into the connection hole provided on the other inner conductor terminal body and swaged, the inner conductor terminals can be easily connected only by swaging operation. Can be.

On the other hand, according to the fourth and fifth aspects of the present invention, the first
The second inner conductor terminal and the second inner conductor terminal can be more reliably and firmly connected by welding (claim 4) or pressure welding (claim 5).

According to the invention of claims 7 to 10, the outer conductor terminal of the second terminal body is formed in a plate blade shape, and this is configured to break through the jacket of the cable and connect to the outer conductor. Since the operation of exposing the outer conductor and turning it over is not required, the connection operation can be performed more efficiently.

According to the eleventh and twelfth aspects of the present invention, since the inner conductor of the cable is sandwiched between the pair of inner conductor terminals of the second terminal body and pressed against each other, both can be reliably connected. In particular, according to the invention of claim 12,
Since the plate-shaped terminals are pressed into contact with the inner conductor by breaking through the inner conductor coating layer, there is no need to remove the coating of the inner conductor, and the connection between the inner conductor terminal of the cable and the inner conductor terminal of the second terminal body is omitted. It can be simplified.

[Brief description of the drawings]

FIG. 1 shows a second embodiment of the connector according to the first embodiment of the present invention.
FIG. 3 is an exploded perspective view of the terminal body and the shield wire.

FIG. 2 is an exploded perspective view of a second terminal body.

FIG. 3 is a perspective view of the connector after a shield wire is connected to a second terminal body and before connection to a first terminal body.

FIG. 4 is an exploded perspective view of an inner conductor terminal and a dielectric constituting a first terminal body.

FIG. 5 is a perspective view showing a state after the inner conductor terminal and the dielectric of the first terminal body are assembled and before they are connected to the outer conductor terminal.

FIG. 6 is a perspective view showing a state where the connector is assembled.

FIG. 7 is a sectional view of the connector in an assembled state.

8 is an enlarged sectional view taken along line VIII-VIII of FIG. 7;

FIG. 9 is an enlarged sectional view taken along line IX-IX of FIG. 7;

FIG. 10 is a sectional view corresponding to FIG. 9 of a connector according to a second embodiment of the present invention before the first and second terminal bodies are joined;

FIG. 11 is a diagram corresponding to FIG. 10 in a state where both terminal bodies are coupled from the state of FIG. 10;

FIG. 12 is a perspective view showing a state before connecting both terminal bodies of a connector according to a third embodiment of the present invention.

FIG. 13 is a sectional view showing a state where both terminal bodies are connected.

FIG. 14 is a perspective view of a state before connecting both terminal bodies of a connector according to a fourth embodiment of the present invention.

FIG. 15 is a perspective view showing a state in which a terminal of a shielded wire connected to a conventional connector is stripped.

FIG. 16 is a perspective view showing a state before a shield wire is connected to a conventional connector.

FIG. 17 is a perspective view showing a state where a shield wire is connected to a conventional connector.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Shield wire (cable) 2 Inner conductor coating layer 3 Inner conductor 4 Outer conductor (shield layer) 5 Jacket B Connector B1 First terminal body 11, 11 Inner conductor terminals 11b, 11b of first terminal body Connection piece 12 Dielectric of second terminal body 13 Outer conductor terminal of same terminal body 13b Barrel of same terminal B2 Second terminal body 16, 16 Inner conductor terminal of same terminal body 16a, 16a Connection hole of same terminal 16b, 16b Terminal board of the same terminal 17 U-shaped outer conductor terminal of the same terminal body 17a Bottom part 17b of the same terminal 17b, both sides of the same blade edge 18, 18 A pair of separated outer conductor terminals 18a, 18a, 18a Lower end portions of both terminals 11c, 11c Welded connection portion (end portion) of inner conductor terminal in first terminal body 16c, 16c Welded connection portion (end portion) of inner conductor terminal in second terminal body 11d, 11d 1 A pair of press-contact blades 16d of the inner conductor terminal in the terminal body, an intermediate portion which is twisted with the inner conductor terminal according 16d second terminal member

Continuation of front page (72) Inventor Nobuaki Kojima 1-7-10 Kikuzumi, Minami-ku, Nagoya-shi, Aichi F-term in Harness Research Institute, Inc. (reference) 5E012 AA14 AA22 5E077 BB06 BB11 BB22 DD01 DD03 DD08 DD11 FF04 FF08 JJ15 JJ20 5E085 BB04 BB11 CC03 DD01 DD03 DD07 DD13 FF01 FF13 HH06 HH11 JJ03 JJ38

Claims (12)

[Claims] A first terminal body having inner and outer conductor terminals connected to inner and outer conductor terminals of a mating connector, and a second terminal body having inner and outer conductor terminals connected to both inner and outer conductors of a cable. Are configured as separate parts, and these two terminal bodies are
A cable connector characterized in that both inner and outer conductor terminals can be connected in a connected state. 2. The cable according to claim 1, wherein a plurality of inner conductor terminals respectively corresponding to inner conductors of the multi-core cable are provided on the first and second terminal bodies as the multi-core cable connector. connector. 3. A means for connecting the inner conductor terminals of the first and second terminal bodies to each other by inserting one of the inner conductor terminals into the connection hole and inserting the other inner conductor terminal into the connection hole and caulking. 2. The connection piece according to claim 1, wherein each of said connection pieces is provided.
Or the cable connector according to 2. 4. As a means for connecting the inner conductor terminals of the first and second terminal bodies to each other, a welded connection part which is welded in a phase-bonded manner is provided on the inner conductor terminals of the first and second terminal bodies. The cable connector according to claim 1 or 2, wherein 5. A means for connecting the inner conductor terminals of the first and second terminal bodies to each other, wherein one inner conductor terminal has a pair of press contact blades and the other inner conductor terminal has a press contact member sandwiched between the press contact blades. The cable connector according to claim 1, further comprising a portion. 6. The cable connector according to claim 5, wherein a twist is applied to the pressed portion. 7. As means for connecting the outer conductor terminal of the second terminal body and the outer conductor of the cable, the outer conductor terminal is formed in a plate blade shape, and the outer conductor terminal is pierced through a cable jacket. The cable connector according to any one of claims 1 to 6, wherein the cable connector is configured to be connected to an outer conductor. 8. The cable connector according to claim 7, wherein a connection leg is provided on the outer conductor terminal of the second terminal body, and a barrel is provided on the outer conductor terminal of the first terminal body. A cable connector characterized in that the connection leg is brought into contact with the barrel by connecting the leg to the barrel by swaging the leg together with the leg, and the outer conductor terminals are connected to each other. 9. The outer conductor terminal of the second terminal body is formed in a U-shape, and the bottom portion of the U-shape of the outer conductor terminal is connected to the barrel as a connecting leg. Item 10. The cable connector according to item 8. 10. A structure in which a pair of opposing outer conductor terminals are provided on a second terminal body, and lower ends of the outer conductor terminals are bent outward or inward as connection legs to contact the barrel. The cable connector according to claim 8, wherein 11. A pair of opposed inner conductor terminals are provided on a second terminal body, and as means for connecting the inner conductor terminals to the inner conductor of the cable, an inner conductor of the cable is connected between the inner conductor terminals. The cable connector according to any one of claims 1 to 10, wherein the cable connector is sandwiched and pressed. 12. The inner conductor terminal of the second terminal body is formed in a plate blade shape, and the inner conductor terminal is configured to break through the inner conductor coating layer of the cable and contact the inner conductor. The cable connector according to claim 11, wherein