JP2002305061A - Modular plug - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a modular plug which can obtain mutual conduction at a higher success rate and also is excellent in durability. SOLUTION: The modular plug 2 is equipped with a conduction blade body 9, which is conducted to a conduction fitting-piece equipped in a modular jack. A conduction spring piece part 15 having elasticity is equipped in a contacting surface side to the conduction-fitting piece of the conduction blade body 9. The conduction spring piece part 15 is supported in open side by the conduction blade body 9 at the front part side of the insertion direction P of the modular plug 2 to the modular jack of the conduction blade body 9. Further, towards backward direction of the insertion direction P, an extended first half inclination part 15a arranged by separating gradually from the contact surface, and an extended latter half inclination part 15b arranged by approaching the contact surface gradually from extension end of the extended first half inclination part 15a, are equipped with.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a modular plug used for connecting a telephone or a LAN.

[0002]

2. Description of the Related Art Generally, when connecting a telephone or a LAN,
Modular plugs such as RJ11 (for telephone) and RJ45 (for LAN) are connected and used. The other end to which the modular plug is connected is called a modular jack, and is provided in a LAN port, a patch panel, a rosette, or the like of a network device such as a telephone or a hub.

For example, FIG. 3 to FIG. 7 show an RJ45 having eight cores.
The modular jack 1 and the modular plug 2 shown in FIG. 1 are shown, and eight elastically deformable conductive metal pieces 5 are provided along the width direction on the bottom side of the insertion port 4a of the case body 4 in the modular jack 1. They are arranged in parallel at a predetermined interval.

[0004] Each of the conductive metal pieces 5 is connected to each of the conductors 7 of the LAN cable 6 by pressing or the like, and is arranged in an inclined manner so as to face upward from the entrance side of the insertion port 4 a toward the back. .

On the bottom side of the insertion portion 8a of the case body 8 in the modular plug 2, a guide groove 8b into which each of the conductive metal pieces 5 is individually inserted and guided along a width direction thereof. Are formed in parallel with an interval of.

In the respective guide grooves 8b, plate-shaped conductive blades 9 having a lower portion projecting therefrom are arranged correspondingly in parallel, and each conductive blade 9 is connected to each conductor 11 of the LAN cable 10. Are connected to each other by pressure welding or the like.

On the upper part of the case body 8, a lock portion 8c is provided, which is removably locked via an elastic deformation at a locking portion provided at the insertion port 4a of the modular jack 1. I have.

Then, when the insertion portion 8a of the modular plug 2 is inserted into the insertion port 4a of the modular jack 1 and fitted, as shown in FIG. 7, the engagement of the modular jack 1 through the elastic deformation of the lock portion 8c. A state in which the retaining portion is locked in a retaining shape is obtained. At this time, each conductive metal piece 5 is in one-to-one correspondence with each corresponding conductive blade body 9 in each guide groove 8b.
, So that conduction between the cables 6 and 10 is maintained, and a state where data communication between the cables 6 and 10 is possible is obtained.

The conductive metal pieces 5 are in an elastically deformed state pressed toward the bottom side by the corresponding conductive blade bodies 9 in the respective guide grooves 8b, and are brought into pressure contact with each other by their elastic restoring force. As a result, the conduction performance between each conduction metal piece 5 and each conduction blade body 9 is improved.

In a state where the lock portion 8c is elastically deformed to release the lock with the lock portion on the modular jack 1 side,
When the case body 8 is pulled out from the insertion port 4a, the modular plug 2 is detached from the modular jack 1.

[0011]

However, the repetition of insertion and removal between the modular jack 1 and the modular plug 2 may deteriorate the spring property of the conductive metal piece 5 on the modular jack 1 side, or may completely eliminate it. Even if the product is new and good, conduction may not be established properly due to the compatibility between the modular jack 1 and the modular plug 2 due to differences in manufacturers and lots.

In these cases, data communication by telephone or LAN becomes impossible, and much time is required for investigating and recovering the cause, which may cause trouble in business. Also, as a real problem, in the case of the above-mentioned compatibility between new and non-defective products, it is often recovered by once inserting and removing, but without noticing the cause, re-wiring the wiring work, etc. Is currently spent.

[0013] In view of the above problems, it is an object of the present invention to provide a modular plug that can achieve mutual conduction with a higher success rate and that is excellent in durability.

[0014]

A technical means for solving the above-mentioned problem is a modular jack having a conductive blade body which is electrically connected to an elastically deformable conductive metal piece provided on a modular jack. The plug is characterized in that a conductive spring piece portion having elasticity is provided on the contact surface side of the conductive blade body with the conductive metal piece so as to protrude in a direction away from the contact surface.

The conductive spring piece is supported by the conductive blade body at a front side of the conductive blade body in the insertion direction of the modular plug with respect to the modular jack, and the conductive spring piece part is connected to the modular jack. The modular plug may be arranged so as to extend rearward in the insertion direction.

Further, the conductive spring piece portion is formed so as to gradually extend away from the contact surface in the rearward direction of the insertion direction, and to extend from a front end of the extension front half inclined portion. A structure may be provided that includes an extended rear half inclined portion that is gradually approached to the contact surface.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. Note that the same components as those in the conventional case are denoted by the same reference numerals, and detailed description thereof is omitted.

As shown in FIGS. 1 and 2, the modular plug 2 has a guide groove 8b on the bottom side of the insertion portion 8a of the case body 8 in which the respective conductive metal pieces 5 are individually inserted and guided, as in the conventional case. Plate-shaped conductive blades 9 are formed in parallel with corresponding predetermined intervals, and the lower portions of the guide grooves 8b are arranged in parallel with each other. Are connected to the respective conductors 11 of the LAN cable 10 by pressure welding or the like.

On the upper part of the case body 8, a lock portion 8c is provided, which is removably locked via an elastic deformation at a locking portion provided at the insertion port 4a of the modular jack 1. I have.

In the modular plug 2 of the present embodiment, the conductive spring pieces 15 having elasticity are integrally formed on the contact surface side of each conductive blade body 9 with the conductive metal piece 5, ie, on the bottom side in the drawing. It is prepared for.

Each conductive spring piece 15 is formed to have the same width as the width of the bottom surface of the conductive blade body 9 protruding into the guide groove 8b. On one side (left side in the figure), one end is attached to the bottom surface of the conductive blade body 9 by welding or soldering and supported in a cantilever manner, and the portion extending in the other end direction is the insertion direction P An extension first-half inclined portion 1 of an appropriate length, which is disposed gradually away from the bottom surface of the conductive blade body 9 in a rearward direction (rightward direction in the figure).
5a, and an extended second-half inclined portion 15b of an appropriate length that is bent from the extending end of the first-half inclined portion 15a and gradually approaches the bottom surface. ing.

The conductive spring piece 15 is configured to be elastically deformable on the free end side with respect to the bottom surface direction of the conductive blade body 9. At this time, from the viewpoint of preventing damage due to catching with other external members or the like, the conductive spring piece 15 is provided with the guide groove 8.
It is configured such that it does not protrude outside from inside b.

Each conductive spring piece 15 is made of a metal piece having excellent conductivity, for example, phosphor bronze having excellent conductivity and durability.

The present embodiment is configured as described above. If the modular plug 2 is inserted into the insertion port 4a of the modular jack 1 and fitted in the same manner as in the prior art, each conductive metal piece 5 is connected to each guide. In the groove 8b, the conductive spring pieces 15 of the corresponding conductive blade bodies 9 are in one-to-one contact with each other, the continuity between the cables 6, 10 is maintained, and data communication between the cables 6 and 10 is possible. The state is obtained.

At this time, in the respective guide grooves 8b, the respective conductive metal pieces 5 and the respective conductive spring pieces 15 are pressed against each other,
The conductive metal pieces 5 and the conductive spring pieces 15, that is, the conductive blades 9, are brought into a conductive state by being elastically deformed and brought into pressure contact with each other by their elastic restoring forces. Therefore, higher conduction performance can be ensured. Here, the flexibility for the difference between manufacturers and lots is also improved, and mutual continuity is obtained with a higher success rate,
The problem of compatibility between new and good products as in the past can be solved at a considerable rate.

Also, since the conductive metal piece 5 and the conductive spring piece part 15 are pressed against each other by the elastic restoring force of the conductive metal piece 5 and the conductive spring piece part 15 so that conduction is obtained, either the conductive metal piece 5 or the conductive spring piece part 15 can be obtained. Even if one spring property deteriorates, conduction can be effectively secured by the other spring property, and conduction can be secured unless both spring properties are significantly deteriorated, so that the modular jack 1 and the modular plug 2 can be connected and disconnected. , The number of durability increases, and the durability can be improved.

As described above, the trouble of communication on the telephone, the LAN or the like due to the simple physical trouble between the modular jack 1 and the modular plug 2 is reduced more effectively.

The conductive spring piece 15 is formed in a U-shape by an extended front half inclined portion 15a and an extended rear half inclined portion 15b, and the modular plug 2 is inserted into the modular jack 1 for fitting. When making it, modular jack 1
When the modular plug 2 is detached from the connector, the relative sliding between the conductive fitting pieces 5 and the conductive spring pieces 15 is also smoothly performed, and mutual breakage can be effectively prevented.

In the above embodiment, the structure in which the conductive spring piece 15 is mounted separately from the conductive blade body 9 is shown.
And may be integrally configured.

Further, the conductive spring piece 15 extends from the extension end of the extension first half inclined portion 15a through the bent portion to extend the second half inclined portion 1a.
5b shows a structure provided with the first half inclined portion 15 extending.
A structure may be adopted in which the extended rear half inclined portion 15b is extended from the extended end of a through a curved portion having an appropriate curvature.

Furthermore, although the modular jack 1 and the modular plug 2 used for a telephone or a LAN are shown, any structure utilizing the connection structure between the modular jack 1 and the modular plug 2 may be used. Not limited.

[0032]

As described above, according to the modular plug of the present invention, a conductive spring piece portion having elasticity protrudes in the direction away from the contact surface on the contact surface side of the conductive blade body with the conductive metal piece. The conductive metal piece and the conductive spring piece are pressed against each other to be in an elastically deformed state, and are brought into pressure contact with each other by the elastic restoring force of both, thereby establishing a conductive state between them. As a result, higher conduction performance can be ensured, conduction between them can be obtained with a higher success rate, compatibility problems between new and good new products can be solved at a considerable rate, and both spring characteristics have significantly deteriorated. Unless otherwise, conduction is ensured, and there is an advantage that durability can be improved.

The conductive spring piece is supported in a cantilever manner on the conductive blade body at the front side in the insertion direction of the modular plug with respect to the modular jack of the conductive blade body.
If the modular plug is configured to extend in the rearward direction in the insertion direction of the modular plug with respect to the modular jack, when the modular plug is inserted and fitted into the modular jack, the conductive metal piece and the conductive spring piece are Have the advantage that the relative sliding of the two can be smoothly performed and mutual breakage can be effectively prevented.

Further, the conductive spring piece portion is formed so as to gradually extend away from the contact surface in the rearward direction in the insertion direction, and to extend from the extended end of the extended front half inclined portion to the contact surface. With a structure including an extended rear half inclined portion that is gradually approached, when the modular jack and the modular plug are inserted and removed from each other, the relative sliding between the conductive metal piece and the conductive spring piece is smooth. This has the advantage that mutual damage can be effectively prevented.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view according to the present embodiment.

FIG. 2 is an enlarged view of a main part of the conductive blade body.

FIG. 3 is a schematic sectional view showing a conventional modular jack.

FIG. 4 is a view taken in the direction of arrows IV-IV in FIG. 3;

FIG. 5 is a schematic sectional view showing a conventional modular plug.

FIG. 6 is a view taken along line VI-VI of FIG. 6;

FIG. 7 is a schematic sectional view showing a connection state between a modular jack and a modular plug.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Modular jack 2 Modular plug 4 Case body 5 Conductive metal piece 8 Case body 9 Conductive blade body 15 Conductive spring piece 15a Extension first half inclined part 15b Extension second half inclined part

Claims (3)

[Claims] 1. A modular plug having a conductive blade body that is connected to and releasably connected to an elastically deformable conductive metal piece provided on a modular jack, wherein a contact surface side of the conductive blade body with the conductive metal piece. A modular plug, wherein a conductive spring piece portion having elasticity is provided so as to protrude in a direction away from the contact surface. 2. The conductive spring piece is supported in a cantilever manner on the conductive blade body at the front side of the modular plug of the conductive blade body in the insertion direction of the modular plug, and the conductive spring piece is connected to the modular jack. The modular plug according to claim 1, wherein the modular plug is arranged to extend rearward in the insertion direction of the modular plug. 3. The extended front half-sloping portion, which is gradually spaced apart from the contact surface in a rearward direction of the insertion direction, from the extension end of the extended front half-sloping portion. 3. The modular plug according to claim 2, further comprising an extended rear half inclined portion disposed gradually closer to the contact surface.