JPH0963679A - Modular connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a modular connector which improves efficiency of a wire connecting work, by carrying out the wire connecting work without using an exclusive jig or tool. SOLUTION: Pressure contact terminal pieces 22 in order to connect a twisted pair wire TP are erected on a terminal block 12 provided to a housing 1. In the housing 1, a lever 3 is journalled by a shaft pin 4 turnable between the position to cover the terminal block 12 and the position to release the terminal block 12. This lever 3 is formed in a square tube form partitioned by partition walls 32c in order to allow to insert the lead wires L1 to L8 of the twist pair wire TP, being partitioned separately. When the lever 3 is turned to the side to cover the terminal block 12, the terminal pieces 22 are inserted into the inner space of the lever 3, and the lead wires L1 to L8 are pressed in to pressure contact slits 22a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a modular connector used as an information wiring member constituted by preceding wiring of twisted pair wires as infrastructure in an intelligent building or the like.

[0002]

2. Description of the Related Art Conventionally, a twisted pair wire has been often used as a transmission line for communication because it is excellent in noise resistance and inexpensive. The twisted pair wire is a pair of electric wires twisted together, and a communication cable in which a plurality of twisted pair wires are housed in a sheath is also provided. A modular jack or modular plug, which is a modular connector, is often used as a connector for connecting communication cables of this type to each other or to other devices.

The modular jack has a structure in which a plurality of conductive paths are provided in a housing made of an insulating material having a plug insertion recess into which a modular plug is detachably inserted. A linear contact spring protruding into the plug insertion recess is provided at one end of each conductive path, and the contact spring elastically contacts the contact of the modular plug inserted into the plug insertion recess to thereby modular jack. And the modular plug are electrically connected. In addition, a terminal portion for connecting to an external electric wire is provided at the other end of each conductive path, and in the case where a twisted pair wire is used as the external electric wire, a fork shape having a pressure welding slit between a pair of teeth is used as the terminal portion. There is provided a pressure contact type terminal piece of a type in which the formed twisted pair wire is introduced into the pressure contact slit to sandwich the core wire while stripping the insulating coating of the twisted pair wire. For each conductive path, a contact spring and a terminal piece are continuously and integrally formed by punching a sheet metal, or a contact spring formed by punching a wire or sheet metal and a terminal piece formed by punching a sheet metal are provided separately. It is formed by electrically connecting the two with a circuit board or the like.

When the modular jack having the above-mentioned structure is used for communication, it is installed on a floor surface, a wall surface, a wiring space of a free access floor, or the like.

[0005]

However, in the above-mentioned structure, when the electric wire is press-fitted into the gap of the terminal piece, the core wire is sandwiched while stripping the insulating coating of the electric wire at both side edges of the gap of the terminal piece. The required force is required for press fitting.
Therefore, use a dedicated cap-shaped jig that covers the terminal piece, and use a general-purpose tool such as pliers to push the jig toward the terminal piece side so that the wire pushes the wire into the gap between the terminal pieces. ing. That is, a dedicated jig and a tool such as pliers are required to connect the electric wire to the terminal piece.

The present invention has been made in view of the above points, and an object of the present invention is to perform the wiring work without using a dedicated jig or tool and to improve the work efficiency of the wiring work. It is to provide a modular connector with improved performance.

[0007]

According to the first aspect of the present invention,
A housing that includes a connection block to which a mating connector is detachably connected and a terminal block to which an external electric wire is connected, a terminal piece that has a press-contact slit that projects from the main surface of the terminal block, and has an open leading edge, and a terminal piece. When a wire that is electrically connected and arranged on the connection base and contacts the mating connector is provided, and an electric wire having an insulating coating is press-fitted into the press-contact slit of the terminal piece, the core wire is sandwiched while stripping the insulating coating. In the modular connector in which the contact and the core wire are electrically connected by means of the above, the housing is pivotally attached to the housing so as to rotate between a position where the main surface of the terminal block is covered and a position where the main surface is opened. The lever is a slot shape that holds each electric wire so that each electric wire passes through an individual passage path from the introduction part of the plural electric wires to the connection part with the terminal piece. Made by a holding portion, and is characterized in that the wire when rotated in a direction that covers the lever to the terminal block has to be press-fitted into the press-contact slit.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. 1 is an exploded perspective view of a modular jack according to an embodiment of the present invention.
4 is a side view showing a state in which the lever 3 of the modular jack according to this embodiment is opened, and FIG. 3 is a side view showing a state in which the lever 3 of the modular jack according to this embodiment is closed, and FIG. FIG. 5 is a front view of the modular jack according to the present embodiment, and FIG. 5 is a rear view showing a state in which the lever 3 of the modular jack according to the present embodiment is closed. As shown in FIGS. 1 to 5, the modular jack includes a housing 1 made of a molded product of synthetic resin which is an insulating material, and the housing 1 continuously includes a contact spring 21 as a contact and a terminal piece 22. The eight conductive members 2 are held. The housing 1 has a plug connection block 11 and a terminal block 1
2 and 2 are continuously and integrally formed. In the following description, the direction in which the terminal block 12 is extended with respect to the plug connection block 11 is the rear direction.

As shown in FIG. 4, the plug connection base 11 has a plug insertion recess 11 which is opened in the front surface of the plug connection base 11 and into which a tip end of a modular plug (not shown) is inserted.
a is provided. Further, as shown in FIG. 1, the upper surface of the terminal block 12 is located below the upper surface of the plug connection block 11.

Sidewalls 12a are provided on both sides of the upper surface of the terminal block 12, and protrusions 11b are provided on both sides of the upper surface of the plug connection base 11. A lever holding portion 11c for holding a lever 3 to be described later is provided to project rearward above the protrusion 11b, and a shaft hole 11d for inserting the shaft pin 4 is inserted into the lever holding portion 11c. Has been drilled. The upper surface of the side wall 12a is continuous with the upper surface of the protrusion 11b via the lever holding portion 11c, and the upper surface of the side wall 12a has a substantially constant height from the bottom surface of the terminal block 12.

Further, as shown in FIG. 1, on the upper surface of the terminal block 12, four terminal strips 22 are erected in two rows in the front and rear direction, and between the adjacent terminal strips 22 in one row in the left-right direction. The terminal pieces 22 in the other row are arranged in a staggered manner so as to be positioned. As described above, since the eight terminal pieces 22 are provided, it is possible to connect four twisted pair wires, and each twisted pair wire is a terminal piece that is adjacent to each other in the left-right direction. 22 is connected.

As shown in FIG. 6, each terminal piece 22 has a pressure contact slit 22a having an open upper end between a pair of teeth,
The side edges of the upper end portion of the pressure contact slit 22a are configured such that the lead wires L1 to L8 of the twisted pair wire TP are driven into the pressure contact slit 22a by increasing the distance between the side edges toward the upper side. The left and right widths of the pressure contact slits 22a are set so as to be in pressure contact with the core wires of the lead wires L1 to L8. When the lead wires L1 to L8 are introduced into the pressure contact slits 22a, the insulation coating of the lead wires L1 to L8 is applied to the pressure contact slits. It is designed to be cut at both side edges of 22a.

As shown in FIG. 2, the contact spring 21 continuously formed integrally with each terminal piece 22 passes through the inside of the housing 1 and is provided with the plug insertion recess 1 provided in the plug connection base 11.
1a (see FIG. 4). The contact spring 21 is bent at an intermediate portion, and the tip end portion of the contact spring 21 is inclined so that the tip end thereof is located higher in FIG. Also,
The tip of the contact spring 21 has elasticity toward the upper side,
The tips of the contact springs 21 are housed in a comb-shaped holding portion provided inside the plug insertion recess 11a so as not to contact each other. By thus holding the tip of the contact spring 21, as shown in FIG.
Are arranged at substantially equal intervals in the left-right direction. Each contact spring 21 and each terminal piece 22 are connected so as to have a relationship shown in FIG. 7 (in FIG. 7, the contact spring 21 and the terminal piece 22 to which the reference numerals A to H are given are connected to each other). Exist). That is, the center two of the contact springs 21 arranged in the left-right direction are connected to the set of twisted pair wires TP, and the two contact springs 21 on both sides are connected to the set of twisted pair wires TP. Further, the remaining two contact springs 21 at the left and right ends are connected to the twisted pair wires TP. In short, the terminal strips 22 are arranged such that each one of the front and rear terminal strips 22 adjacent to each other in the left-right direction is connected to the set of twisted pair wires TP, whereas the contact springs 21 form a set. Since it is different from the terminal piece 22, the conductive members 2 are appropriately crossed inside the housing 1 so that the contact springs 21 are arranged in a desired relationship. Contact spring 21 and terminal piece 22 in FIG.
The connection relationship with is an example, and other connection relationships may be adopted as necessary.

By the way, the modular jack of this embodiment is provided with a lever 3 as shown in FIG. 1 in order to facilitate the work of connecting the lead wires L1 to L8 of the twisted pair wires to the terminal pieces 22. . The lever 3 is a molded product of synthetic resin, and is attached by a shaft pin 4 inserted into a shaft hole 11d provided in the lever holding portion 11c,
The shaft pin 4 is rotated between a position where the main surface of the terminal block 12 is covered to cover the terminal piece 22 and a position where the main surface of the terminal block 12 is opened to expose the terminal piece 22. The lever 3 includes a pair of left and right side plates 31, and a lid plate 32 that continuously and integrally connects upper portions of the side plates 31. A pair of locking hooks 33 are provided on both side edges of the rear end portion of the lever 3 so as to extend downward in FIG. 1, and a claw portion 33a provided at the tip of the locking hook 33 is provided at the lower rear end of the housing 1. Locking notch 12
It can be engaged with b. Then, the lower edge of the side plate 31 is provided with the housing 1 when the terminal block 12 is covered with the lever 3.
The lever 3 is abutted against the upper surface of the side wall 12a, and the claw portion 33a of the locking hook 33 is locked in the locking notch 12b, so that the lever 3 is locked so as not to open.

On the upper surface of the front part of the lever 3, a recess 32a is formed which opens upward and forward, and a cylindrical holding part 32b for inserting the shaft pin 4 is formed in the recess 32a. By inserting the shaft pin 4 into the holding portion 32b, the shaft is attached.

As shown in FIG. 1, the cover plate 32 is formed in a rectangular tube shape with its rear end face opened and its front end face closed, and the seven partition walls 32c divide the internal space into eight cylindrical chambers. It has a different configuration. That is, the rear surface of the lever 3 is provided with eight passage holes 32d into which the lead wires L1 to L8 of the twisted pair wire TP can be individually inserted. Also, the lid plate 32
Of the lead wire L1 to L8 is formed in the passage hole 32d.
It is designed to be temporarily held when is inserted.

Further, when the lever 3 is rotated in a direction to cover the main surface of the terminal block 12, the terminal piece 2 of the lever 3 is rotated.
Through holes 32e are drilled in the lower wall of the portion corresponding to 2,
The terminal piece 22 is introduced into the internal space of the lever 3 through the through hole 32e.

Therefore, in this embodiment, the lead wires L1 to L8 of the twisted pair wire TP are inserted into the through holes 32d provided in the lever 3, and the lever 3 is rotated in a direction to cover the main surface of the terminal block. The through hole 3
The terminal piece 22 is inserted into 2e. And the through hole 32e
A downward pressing force acts on each of the lead wires L1 to L8 by the peripheral portion of the opening of the pressure contact slit 22a provided on the terminal piece 22.
As it is pressed into the lead wire, each lead wire L1 to L of the twisted pair wire can be used without using a separate jig or tool.
8 can be connected to the terminal piece 22. Here, as compared with the distance from the shaft pin 4 which is the fulcrum of the lever 3 to the through hole 32e which is the point of action, the distance from the fulcrum to the rear end of the lever 3 which exerts a pressing force on the lever 3 is sufficient. The lead wires L1 to L8 can be pushed into the press contact slits 22a with a relatively small force. Further, since the lead wires L1 to L8 of the twisted pair wire TP are inserted into the passage hole 32d of the lever 3, it is not necessary to perform the wiring work in the narrow space of the terminal block 12, and the wiring work can be easily performed.

In the present embodiment, the case of the twisted pair wire has been described, but the present invention is not limited to this, and the same effect can be obtained when another communication cable such as a coaxial cable is used. .

[0020]

According to the first aspect of the present invention, the housing is provided with the connection base to which the mating connector is detachably connected and the terminal base to which the external electric wire is connected, and the tip end is open so as to protrude from the main surface of the terminal base. A terminal piece having a pressure-bonded slit,
It is equipped with a contact that is electrically connected to the terminal piece and arranged on the connection base and that contacts the mating connector, and if a wire with an insulation coating is pressed into the pressure contact slit of the terminal piece, the core wire is stripped off while stripping the insulation coating. In a modular connector in which a contact and a core wire are electrically connected by being sandwiched, a modular connector is pivotally attached to a housing so as to rotate between a position covering a main surface of a terminal block and a position opening the main surface. The lever is equipped with a slot-shaped holding part that holds each wire so that each wire goes through a separate passage from the introduction part of multiple wires to the connection part with the terminal piece. When rotated in the direction to cover the table, the surface of the lever that covers the terminal block causes the wire to be pressed into the press-contact slit, and the wiring work without using a dedicated jig or tool. It is possible to provide a modular connector with improved work efficiency connecting operation in the so performed.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a modular jack according to an embodiment of the present invention.

FIG. 2 is a side view showing a state in which a lever of the modular jack according to the present embodiment is opened.

FIG. 3 is a side view showing a state in which a lever of the modular jack according to the present embodiment is closed.

FIG. 4 is a front view of the modular jack according to the present embodiment.

FIG. 5 is a rear view showing a state where the lever of the modular jack according to the present embodiment is closed.

FIG. 6 is a schematic view showing a terminal piece according to the present embodiment.

FIG. 7 is a schematic diagram showing a connection relationship between a terminal piece and a conductive member according to the present embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Housing 2 Conductive member 3 Lever 4 Shaft pin 11 Plug connection base 11a Plug insertion recess 11b Projection base 11c Lever holding part 11d Shaft hole 12 Terminal block 12a Side wall 12b Locking notch 21 Contact spring 22 Terminal piece 22a Pressure contact slit 31 Side plate 32 Cover plate 32a Recess 32b Holding part 32c Partition wall 32d Pass hole 32e Through hole 33 Locking hook 33a Claw part TP Twisted pair wire L1 to L8 Lead wire

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masahiko Amano 1048, Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works Co., Ltd.

Claims (1)

[Claims] 1. A terminal piece having a housing provided with a connection block to which a mating connector is detachably connected and a terminal block to which an external electric wire is connected, and a terminal strip having a press-contact slit projecting from a main surface of the terminal block and having an open end edge. And a contact which is electrically connected to the terminal piece and arranged on the connection base and which contacts the mating connector, and when the wire having the insulating coating is press-fitted into the press-contact slit of the terminal piece, the insulating coating is peeled off. While sandwiching the core wire, in the modular connector in which the contact and the core wire are electrically connected to each other, it is possible to rotate between the position where the main surface of the terminal block is covered and the position where the main surface is opened. A lever pivotally attached to the housing is added, and the lever holds each electric wire so that each electric wire passes through an individual passage path from the introduction portion of the plural electric wires to the connection portion with the terminal piece. A modular connector, comprising: a slot-shaped holding portion, wherein an electric wire is press-fitted into the press-contact slit when the lever is rotated in a direction to cover the terminal block.