JPH046772A - Modular jack - Google Patents

Abstract

PURPOSE:To easily connect an external electric wire even when it is a twisted wire by forming pressing slits on a terminal block, forming a modular jack into a preset size, and providing two modular blocks. CONSTITUTION:The lead wire 17 of a modular block 3 is pressed and connected to a pressing slit 30 on one end side of the connection piece 28 of a terminal block 4, an external line is pressed and connected to a pressing slit 30 on the other end side of the connection piece 28, and they can be connected even when the external line is a twisted wire. A modular jack main body 1 is formed into the size of three standard wiring apparatus modules, and it is fitted to a wiring apparatus fitting frame fitted on a wall face for application t three modules. Two module plugs can be connected.

Description

[Detailed description of the invention] INDUSTRIAL APPLICATION This invention is used as a connection terminal of a telephone etc.

[Prior Art] Conventionally, multi-polar modular jacks having eight or more contact springs have been provided. This type of multi-pole modular jack has a modular insert with a number of contact springs that contact the contacts of the modular plug, and the leads drawn out from the modular insert are connected to the terminal block. It is designed to be connected to external electric wires via.

[Problems to be Solved by the Invention] In such a conventional example, the terminal block side connected to the external electric wire has a so-called connecting terminal structure composed of a terminal plate, an M locking spring, and a release button. There is. Therefore, there is a problem in that the external electric wire is a single-wire device that can be connected only when the external electric wire is a single wire, and cannot be connected when the external electric wire is a stranded wire.

In addition, if the terminal structure of the terminal block is a screw type, it is possible to connect with stranded wire, but it is difficult to construct.

The present invention has been provided in view of the above-mentioned points, and an object of the present invention is to provide a modular device that allows easy connection even when the external electric wire is a stranded wire. It is.

[Means for Solving the Problems] The present invention provides a modular jack body in which a lead wire and an external line are press-fitted into both ends of a connecting piece provided in a terminal block to form pressure welding slits in contact with the connecting piece. is the size of three standardized wiring equipment modules,
It has two modular blocks.

[Function] Then, the lead wire of the modular block is press-fitted into the pressure welding slit on one end side of the connection piece of the terminal block, and the external line is press-fitted into the pressure welding slit on the other end side of the connection piece. It can be connected even if the external line is a stranded wire, and the modular jack body can be connected to a standardized wiring device module.
The size of each module allows it to be installed in a mounting frame for wiring devices attached to a wall, etc., making it possible to embed it in a way that fits 3 modules, and also to connect 2 modular plugs. It is possible.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings. 1st
As shown in the figure, the modular jack main body 1 includes a case 2 constituting an outer shell, a modular block 3 housed inside the case 2, and a terminal electrically connected to the modular block 3. It consists of Pro Tsuk 4. The modular jack main body 1 is made of synthetic resin and has a size that allows one jack to be attached to a mounting frame for three large rectangular jacks standardized by JIS standards and Japan Wiring Equipment Industry Association standards. That is, in this embodiment, it is the size of three standardized wiring device modules, and is large enough to allow one modular jack main body 1 to be attached to the mounting frame.

Case 2 has bodies 5 and 1. The cover 6 is fitted into the opening surface of the second body 5, and as shown in FIG.
Visible locking pieces 8 protruding from corresponding sides of the
is inserted and locked, and the cover 6 is attached to the body 5.

Two square holes 9 are formed at the bottom of the body 5 for inserting and arranging the terminal block 4.

Two locking holes 10 are formed on both sides of the cover 6, and two pairs of locking pieces 11 are protruded from the sides. This locking hole 10 is for attaching to a metal mounting frame, and the pair of locking pieces 11 are for attaching to a synthetic resin mounting frame. There are two insertion holes 12 on the top surface of the cover 6 into which modular plugs are inserted from the outside.
There are two perforations.

In this embodiment, two modular blocks 3 are installed so that two modular plugs are connected. The modular block 3 has a middle frame 13 as shown in FIG.
, a modular insert 1 arranged within this middle frame 13
4 and a middle body 15 to which the middle frame 13 is fixed. The modular insert 14 is made by integrally molding eight conductor wires made of a spring material, and has the above-mentioned eight conductor wires on the - side.
A conductor wire is disposed as a contact spring 16, and lead wires 17 electrically connected to the contact spring 16 are led out from the other side. Note that the lead wire 17 is provided with an insulating coating.

The contact spring 16 is adapted to make contact with each of the plurality of contacts of the modular plug by individually elastically contacting them.6 The inner frame 13 made of an insulating material penetrates vertically, and a cover 6 is attached to the upper surface of the inner frame 13. A guide hole 13a is formed corresponding to the insertion hole 12. The contact spring 16 of the modular insert 14 is exposed within the guide hole 3a as shown in FIG. There are four protrusions 1 around the middle frame 13 for positioning.
8 is formed, and one protrusion is provided on the protrusion 180.

The middle body 15 is formed with a hook part 20 that engages with the protrusion 19 of the middle frame 13, and the hook part 20 is engaged with the protrusion 19 to fix the middle frame 13 to the middle body 15. Furthermore, dowels 21 formed on the middle body 15 abut against the outer peripheral surface of the middle frame 13 to position the middle frame 13. Furthermore, medium body 1
An insertion hole 22 through which the lead wire 17 is inserted is provided in the center of the housing 5 . A large number of ribs 23 are arranged in a row on one side of the lower surface of the middle body 15, as shown in FIGS.
7 is used as a holding groove 24 for holding it. Furthermore, medium body 1
A recess 25 is formed on one side of the body 5 to prevent incorrect insertion into the body 5.

The terminal block 4 is composed of two terminal bodies 26 corresponding to the two modular blocks 3 and a cap 27 covering the outside of the terminal bodies 26.

The terminal body 26 includes a holding frame 29 and a lead wire 17 of the modular insert 14 provided inside the holding frame 29.
It is constructed by integrally molding conductive connecting pieces 28 corresponding to the number of conductive connecting pieces 28. Although the second terminal main body 2 and the body 5 are integrally molded at the same time, it is also possible to have a structure in which the terminal main body 26 is fitted and fixed by inserting the tip end into the square hole 9 of the body 5. As shown in FIGS. 1 and 3, the connecting piece 28 in the terminal body 26 has an upper end protruding from the holding frame 29 and is split into two parts, forming a pressure welding slit 30. There is.

Similarly, a pressure welding slit 31 is also provided at the bottom of the connection piece 28.
are formed and arranged in a row on the lower surface of the holding frame 29.
The pressure contact slit 31 is arranged in between, and the lower part of the connecting piece 28 does not protrude beyond the rib 32.

The lead wire 17 of the modular insert 14 is press-fitted into the pressure welding slit 30 at the top of the terminal body 26 with the insulation covering removed, the insulation covering is peeled off, and the internal conductor is directly connected to the connecting piece 28 to obtain electrical contact. I have to. The same applies to the pressure welding slit 31 at the bottom of the connection piece 28, and an external electric wire is press-fitted into the pressure welding slit 31 for contact connection. Therefore, since it is a type that is press-fitted into the pressure welding slits 30 and 31, not only solid wire but also stranded wire can be easily connected. A flexible cap 27 made of insulating material
has a substantially U-shaped cross section, and can be detachably attached to the rib 32 of the holding frame 29.

Note that this cap 27 covers the holding frame 29 when no external electric wire is connected, and also has a structure that can cover the holding frame 29 even when an electric wire is connected. That is,
A substantially semicircular notch 33 is provided at the end of the side piece of the cap 27.
is formed, and when the cap 27 is attached to the holding frame 29, this cut portion 33 will fit into the pressure contact slit 3 of the connecting piece 28.
1, and the notch 33 serves as an escape for the external electric wire.

FIG. 4 shows an overall view of the modular jack body 1, and as shown, the terminal body 26 is integrally molded with the body 5 at the same time. When the body 5 and the cover 6 are combined, the inner body 15 to be fed is held and fixed by abutting from above and below between the body 5 and the cover 6. Further, two sets of door bodies 34 and 35 are slidably arranged between the insertion hole 12 and the lower surface of the cover 6 and the upper surface of the guide hole 13a of the middle frame 13. When the modular plug is not inserted, the condition shown in Fig. 4 (
As shown in a), the guide hole 13a is closed by the door body 34, 35, and when inserting the guide hole 13a, the door body 3435 is opened and the fifth
The modular plug is inserted and contact is made with the contact spring 16 as shown in the figure.

The mounting frame 41 shown in FIG. 1 is for three large rectangular jacks made of molded resin, and can mount one modular jack main body 1 of five embodiments. This mounting frame 41 is fixed to a switch box or the like buried inside a wall surface or the like, and has mounting holes 42 formed at the top and bottom. Mounting frame 41
Three pairs of locking holes 43 are formed in one of the jacks, and the locking pieces 11 of the modular jack body 1 can be inserted and locked therein. Further, a side piece 44 having flexibility is integrally formed on the other side of the mounting frame 41, and a locking stepped portion 45 on both sides of the side piece 44 is locked by the other locking piece 11 of the modular jack body 1. When mounting the 6-modular jack main body l, which is formed with If necessary, remove the modular jack body 1 from the mounting frame 41 by bending the side piece 44 outward with the tip of a screwdriver or the like to disengage the locking piece 11 and the locking step 45. Can be easily removed.

[Effects of the Invention] As described above, the present invention is a 5 modular system in which a lead wire and an external line are press-fitted into both ends of a connecting piece provided on a terminal block, and pressure welding slits and sockets are respectively formed to contact and connect with the connecting piece. 3 of the wiring equipment module standardized for the main body
Since it has two modular blocks, the lead wire of the modular block is press-fitted into the pressure welding slit at one end of the connection piece of the terminal block.
The external line is press-fitted into the pressure welding slit on the other end of the connection piece, so that it can be connected even if the external line is a stranded wire, and the modular jack body is made as large as three standardized wiring equipment modules. , it can be installed in a mounting frame for wiring devices attached to a wall, etc., making it possible to embed it in a way that is suitable for three modules.Furthermore, it is possible to connect two modular plugs, making it easy to use. This has the effect of improving.

[Brief explanation of drawings]

Figure 1 is an exploded perspective view of the entire embodiment of the present invention, Figure 2 (
a) to (d) are plan views and broken side views of the same middle body;
Bottom view and sectional view, Figure 3 is a front view of the main parts of the same as above, Figures 4 (a) and (b) are front views and bottom views of the main parts of the same Camoduranya 1.72 tree, Figure 5 is the same as above. FIG. 3 is a front view showing the state of the door body. 1 is the modular jack body, 2 is the case 3 is the modular block, 4 is the terminal block, 16 is the contact spring, 17
28 is a lead wire, 28 is a connecting piece, and 30.31 is a pressure welding slit. Agent Patent Attorney Ishi 1) Chief 7 2 Figure 2 Figure 2 (C) /23

Claims (1)

[Claims] (1) A case into which a modular plug is inserted from the outside, a contact spring that is housed inside the case and comes into contact with the contacts of the modular plug, a modular block that has a lead wire on the opposite side of the contact spring, and the lead A modular jack body is formed by a terminal block that connects the wire and an external line, and a lead wire and an external line are press-fitted to both ends of a connecting piece provided on the terminal block, and pressure welding slits are respectively provided for making contact connection with the connecting piece. 1. A modular jack, characterized in that the modular jack main body is the same size as three standardized wiring device modules, and two of the modular blocks are provided.