JPH10116667A - Relay connector for communication line - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a junction connector equipped with as well the function to extend a cord as preclude noise entrance by encasing it in a case through interposition of a noise filter between the modular jacks on the input side and output side. SOLUTION: Modular jacks 10 and 20 on the input side and output side fixed to a printed circuit board 40 and a filter unit 30 are encased in a case made of a synthetic resin which is split into an upper and a lower portion, i.e., a base 2 and cover 3. The base 2 consists of a box whose one side is left open and is equipped on both sides about the longitudinal direction with windows 2A and 2A for exposure of insert openings 10A and 20A in the modular jacks 10 and 20 to be encased. The cover 3 comprises a box whose one side is left open and is equipped on both sides about the longitudinal direction with windows 3A and 3A for exposure of insert openings 10A and 20A in the modular jacks 10 and 20 to be encased. Projections 11 and 21 are provided on the rear side faces of the insert openings 10A and 20A in the modular jacks 10 and 20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a relay connector for extending a cord with a modular plug for connecting devices in indoor wiring of a communication line, and more particularly to a relay connector.
The present invention relates to a relay connector useful in indoor wiring connected to SDN (Integrated Services Digital Network).

[0002]

2. Description of the Related Art Conventionally, in order to extend a cord with a modular plug for connecting devices in indoor wiring of a communication line, a relay connector having input and output side modular jacks at both ends and cross-connecting these is provided. It is known. That is, by connecting cords with modular plugs via the relay connector, the length could be extended.

[0003]

However, digital lines typified by ISDN are particularly sensitive to noise because of the transmission of various digital data instead of voice, and data may be corrupted by noise. Was. When the cord is extended via the relay connector, the risk of picking up noise is further increased.

The present invention has been made in view of such problems, and has as its object to realize a relay connector having a function of extending a cord and a function of preventing noise from being mixed.

[0005] On the other hand, providing the relay connector with a function of preventing the entry of noise means that the structure and internal wiring are complicated, which means a bottleneck in assembly. The present invention has been made in consideration of such a problem, and an object of the present invention is to realize the relay connector with a configuration that is particularly easy to assemble.

[0006]

Here, as a relay connector for achieving the above object, a relay connector in which an output-side modular jack is connected to an input-side modular jack and accommodated in a case is used. A configuration in which a noise filter is interposed between modular jacks is disclosed.

In the above relay connector, a printed circuit board, input-side and output-side modular jacks to be mounted on the printed circuit board, and a lead wire for mounting a noise filter on the printed circuit board as a unit. A filter unit including a filter unit and a case accommodating the filter unit are also disclosed.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A specific embodiment of the relay connector according to the present invention will be described below with reference to the accompanying drawings. For easy understanding, the relay connector is shown upside down in the accompanying drawings. The relay connector includes a printed board 40, input-side and output-side modular jacks 10 and 20 to be mounted on the printed board,
It comprises a filter unit 30 and a case 1 for housing these.

In this relay connector, the input side and output side modular jacks 10 and 20 are inserted into the insertion opening 10.
When the modular plug is inserted into the plugs A and 20A, the contact groups of the plugs become contact spring piece groups 10B and 20B.
This is a well-known modular jack for a communication line that conducts when it comes into contact. In FIG. 3, reference numeral 51 denotes a modular plug in this case. By inserting the modular plug 51 provided at one end of the cord 50 into the insertion opening of the modular jack, the contact spring piece group of the modular jack comes into contact with the contact group 51B to conduct electricity, and further, the locking claw 52 A plug for a well-known modular jack for a communication line, which is prevented from falling off.

On the other hand, the filter unit 30 has coils C1... C8 known as a noise filter housed in a case. From the bottom surface, an input side for mounting this unit on the printed circuit board 40 is provided. Lead wire group 30C corresponding to modular jack 10 and lead wire group 30D corresponding to modular jack 20 on the output side
Is protruded.

The above-described modular jacks 10 and 20 on the input and output sides and the filter unit 30 are mounted on a printed circuit board 40 so as to be electrically connected to each other, and are integrally fixed via the printed circuit board 40 as a medium. It will be. The arrangement of each member on the printed circuit board 40 is based on the modular jacks 1 on the input side and the output side.
0 and 20 are located at both ends of the printed circuit board 40, and the filter unit 30 is located at an intermediate position between them. In the printed circuit board 40, reference numeral 41 denotes a through hole to which the lead wire group 10C of the input-side modular jack 10 is to be inserted and connected, and reference numeral 42 denotes a lead wire group 20C of the output-side modular jack 20 to be inserted and connected. The through hole to be made, also 43 is the filter unit 30
Reference numeral 44 denotes a lead wire group 3 of the filter unit 30.
0D indicates a through hole to be inserted and connected.

FIGS. 5 and 6 show examples of the above electric circuit. Here, an 8-core modular jack (JIS standard,
An example adopting JISX5110) is taken as an example.
L1... L8 in the figure are contact spring pieces of the input-side and output-side modular jacks 10 and 20, respectively, which are cross-connected in order to connect cords with modular plugs for extension. Is done. And
C8 of the filter unit 30 are interposed between the contact spring pieces L1... L8 via the lead wire groups 30C and 30D.

In this case, the above-mentioned cross connection may be realized on the printed circuit board 40 as shown in FIG.
More preferably, it is realized in the filter unit 30 as shown in FIG. That is, in this case, each of the lead wires of the lead wire group 30C of the filter unit 30 and the lead wire group 30 corresponding to the output-side modular jack 20 side.
Each lead wire of D is cross-connected,
As a result, on the printed circuit board 40 side, a complicated pattern for realizing the cross connection is not required, and an effect of facilitating manufacture is realized.

Next, the input-side and output-side modular jacks 10 and 20 and the filter unit 30 fixed on the printed circuit board 40 are made of synthetic resin divided into upper and lower portions of a base portion 2 and a cover portion 3. It is housed in the case 1.

The base part 2 is formed of a box having one open side,
Windows 2A, 2A from which the insertion openings 10A, 20A of the modular jacks 10, 20 to be accommodated are exposed are provided on both longitudinal sides. Similarly, the cover part 3 consists of a box with one side open, and the modular jack 1 to be accommodated.
Window portion 3 from which 0, 20 insertion openings 10A, 20A are exposed
A, 3A are provided on both sides on the longitudinal side.

On the other hand, projections 11 and 2 are provided on both side surfaces on the rear side of insertion openings 10A and 20A of modular jacks 10 and 20.
1, and when these modular jacks are mounted on both ends of the printed circuit board 30 and dropped into the base 2 of the case 1, the end faces of the projections 11 and 21 are placed on the back side of the windows 2A and 2A of the base 2. Printed circuit board 30
The interval between the modular jacks 10 and 20 above is set (see FIG. 4).

In assembling the relay connector having the above configuration, first, the input side and output side modular jacks 10 and 20 and the filter unit 30 are mounted on the printed circuit board 30 so that they are integrally fixed and fixed. These are dropped into the base 2 of the case 1. As a result, as described above, the end faces of the projections 11 and 21 of the modular jacks 10 and 20 abut against the back sides of the windows 2A and 2A of the base 2, so that the insertion openings 10A and 20A of the modular jacks are connected to the windows 2A and 2A. 2A, the members fixed to the printed circuit board 30 are prevented from moving in the plane direction in the base portion 2 and then the base portion 2 is covered with the cover portion 3 so that the movement in the vertical direction is prevented. Will be prevented. In this case, the base 2
And the cover part 3 are ribs 2 provided at the open end of the base part 2.
B and 2B are fitted into grooves 3B and 3B provided at the opening end of the cover portion 3 to define the joining position, and are fixed by ultrasonic welding.

[0018]

According to the present invention configured as described above, the two cords are connected by connecting the modular plugs of the two cords to the input and output modular jacks at both ends of the relay connector. In addition to the effect of a relay connector that is extended, the effect of preventing noise from being mixed into the line by the accommodated noise filter can be obtained.

On the other hand, the noise filters are not soldered one by one to the terminals of the modular jack, but are assembled into one filter unit, and the filter unit is mounted on a printed circuit board together with the modular jack and housed in a case. As the assembly of the connector is completed,
A relay connector with extremely high manufacturing efficiency is realized.

Further, by performing wiring for realizing the cross connection between the modular jacks on the input side and the output side on both ends in the filter unit, a complicated pattern for realizing the cross connection on the printed circuit board side becomes unnecessary.
The effect that manufacture becomes easy is acquired.

[Brief description of the drawings]

FIG. 1 is a perspective view of a disassembled state of a communication line relay connector of the present invention, which is observed upside down.

FIG. 2 is a perspective view showing the assembling process, which is observed upside down.

FIG. 3 is a perspective view showing the state of use and observing upside down;

FIG. 4 is a partially cutaway plan view showing a state in which a printed circuit board is dropped into a base part;

FIG. 5 is a block diagram of an electric circuit.

FIG. 6 is a block diagram showing another example of the electric circuit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case 2 Base part 3 Cover part 10 Modular jack on the input side 20 Modular jack on the output side 30 Filter unit

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toshinori Yuzuki 200-1 Shiroganebukuro, Kawagoe-shi, Saitama Sanritz, Inc. (72) Inventor Ryoichi Okayasu 3-19-2 Nishishinjuku, Shinjuku-ku, Tokyo Nippon Telegraph and Telephone Stocks In company

Claims (4)

[Claims] 1. A communication line, characterized in that a relay filter is connected to an output-side modular jack with respect to an input-side modular jack and housed in a case, and a noise filter is interposed between these modular jacks. Relay connector. 2. A printed board (40), input-side and output-side modular jacks (10, 20) to be mounted on the printed board (40), and a noise filter unitized and mounted on the printed board. Unit (3C) provided with a group of lead wires (30C, 30D)
2. The communication line relay connector according to claim 1, comprising a case (1) and a case (1) for housing them. 3. The case (1) is divided into upper and lower parts, a base part (2) and a cover part (3), and the insertion openings (10A) of the accommodated input-side and output-side modular jacks (10, 20). , 20A) exposed windows (2A, 3A)
Are provided at both ends of the base portion (2) and the cover portion (3), while projections (11, 21) are provided on both side surfaces behind the insertion openings of the modular jacks (10, 20), and the modular jacks (10, 20) are provided. 20. The semiconductor device according to claim 2, wherein the end surface of the projection is in contact with at least the back side of the window portion of the base portion when the printed circuit board is mounted on the printed circuit board. The relay connector for a communication line described in the above. 4. A lead wire group (3) corresponding to the modular jack (10) on the input side of the filter unit (30).
4. The communication line relay according to claim 1, wherein each of the lead wires of the communication line and the lead wire of the lead wire group corresponding to the output-side modular jack are cross-connected. 5. connector.