JPH1167291A - Connector for simplified cable connection - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate working, and dispence with a tool in the case of connecting plural conductors of a cable (wires comprising plural threaded wires) and a connector (or plug). SOLUTION: Respective needles 5D of plural contact pins 5 arrayed to be fixed to an insert (plug) 4 are penetrated to respective sections of conductors 2 arrayed to be fixed to a conductor holder 3 from their opposite side, and a female screw 7A of a fastening shell 7 is screwed into a male screw 3A of the holder 3. Since a flange 7B of the fastening shell 7 presses the insert 4, respective needles 5D are prevented from coming-off out of respective conductors 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector for a cabtire cable or the like used for measuring earth pressure, water pressure and the like.

[0002]

2. Description of the Related Art Conventionally, connection between a plurality of core wires (consisting of a number of stranded wires) of a cable and a connector (or plug) is generally performed according to the following procedure.

[0003] (1) After the length of the stripped end of the cable is determined, the sheath is stripped.

(2) After the core wires are divided, the length required for crimping or soldering is determined, and the insulator coating is stripped.

(3) When the conductor of each core wire becomes bare, twisting or preliminary soldering is performed on the bare part so that the bare part does not disperse.

(4) The bare part of the conductor of each core wire is connected to each contact incorporated in the plug by caulking, crimping, soldering, spot welding, or the like using a dedicated jig and tool.

In the case of wiring inside the equipment, each lead wire whose length is determined and both ends are treated is connected to a receptacle and each core wire previously attached to a panel or the like of the equipment by soldering or the like.

[0008] A receptacle of a type directly mounted on a printed circuit board has also been proposed.

Many of the aforementioned plugs and receptacles are
After peeling off the tip of the insulation coating of each core wire or each lead wire,
Connected.

A piercing-type connector having a structure in which a needle penetrates through the insulator coating from a direction perpendicular to the insulator coating of the flat cable has also been proposed. This type of connector is effective only in combination with a flat cable designed to have the same core wire thickness and core wire pitch as the connector.

[0011] In addition, the press-connecting connector requires that the core wires of the applicable cable be arranged in a line at a constant pitch, and cannot be used for a cabtire cable. This requirement is satisfied when a cable having a plurality of core wires is pressed against a connector, and when a single wire is pierced one by one from a right angle direction for each core wire, a cable that is not paired with a connector is also pressed. Can be pressed.

[0012] When performing such pressure welding, tools such as a dedicated cable cutter and a pressure welding machine are required.

[0013]

As described above, the conventional technique of connecting a plurality of core wires (consisting of a number of stranded wires) to a connector (or plug) is complicated as described above. There are disadvantages, such as the necessity of special tools and various constraints.

Therefore, the present invention improves on the above-mentioned disadvantages of the prior art, and when connecting a plurality of core wires of a cable to a connector (or plug), the operation can be performed easily, and a tool can be used. It is intended to provide a connector that can be made unnecessary.

[0015]

The present invention employs the following means to solve the above-mentioned problems.

(1) A cable having a plurality of core wires whose ends are trimmed, a core wire holder having a plurality of core wires aligned and fixed, and having a male fitting portion on an outer peripheral surface, and a cable having the core wire holder. , A plurality of contact pins having needles at their ends, an insert for aligning and fixing the plurality of contact pins, and pressing the insert and fitting the male fitting portion of the core holder. A connector comprising a fastening shell having a female fitting portion on an inner peripheral surface thereof, and simplifying cable connection for piercing the plurality of needles into the plurality of core wires.

(2) The connector according to (1), wherein the needle of the contact pin is provided with a groove.

(3) The connector according to (2), wherein the groove is coated with a conductive adhesive.

(4) A cable having a plurality of core wires whose ends are trimmed, a core wire holder having a plurality of core wires aligned and fixed, and having a male fitting portion on an outer peripheral surface, and a cable having the core wire holder. A cable base to be fixed to, a plurality of contact pins having needles at both ends, an insert for aligning and fixing the plurality of contact pins, and a relay plug having a male fitting portion on the outer peripheral surface, and pressing the core wire holder, And a connection shell having a female fitting portion on the inner peripheral surface that fits into the male fitting portion of the relay plug, and simplifies cable connection by piercing the plurality of needles on both sides into the plurality of core wires, respectively. Connector.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A connector according to three embodiments of the present invention will be described with reference to FIGS.

First, a connector according to a first embodiment of the present invention will be described with reference to FIGS.

As shown in FIG. 1, the connector comprises a cable 1, a core wire 2 having an insulator coating after removing a sheath portion of the cable 1, a core wire holder 3 having a thread 3A cut on an outer peripheral surface thereof, It is composed of an insert (plug) 4, a contact pin 5, a cable base 6 having a female thread 6A cut on the inner peripheral surface, and a fastening shell 7 having a female thread 7A cut on the inner peripheral face. Core wire holder 3, insert 4, cable base 6
The fastening shell 7 is formed from a synthetic resin.

The cable 1 is used for measurement or the like by a detector, and the core 2 is composed of a large number of strands, and the core 2 has a plurality of cores. A plurality of core wires 2 are used as core wire holders 3
The core wire holder 3 is fixed to the cable 1 by screwing the female screw 6A of the cable mouthpiece 6 into the male screw 3A of the core wire holder 3, and the ends of the plurality of core wires 2 are trimmed. The plurality of core wires 2 are arranged and set for each color.

As shown in FIG. 2, the contact pin 5 includes a central large-diameter portion 5A, a small-diameter portion 5B on one side, a small-diameter portion 5C on the other side, a needle 5D provided at a tip on one side, and one side. Of the needle 5D and several grooves 5E provided in the middle part. Note that the design of several grooves 5E can be changed to one linear groove. When the conductive adhesive is applied to the groove 5E, the contact pin 5 and the core wire 2 can be sufficiently contacted with a wide contact area. As an example, the dimensions of the contact pin 5 are 24 in total length, 5 and 2.5 in length and diameter of the large diameter portion 5A, 11 and 1 in length and diameter of one small diameter portion 5B, and small diameter on the other side. The length and diameter of the portion 5C are 8 and 1.6, the length of the needle 5D is 5, and the depth and pitch of the groove 5E are 0.3 and 1 mm.

In FIG. 1, the core wire holder 3 and the insert 4 have the same diameter, but as shown in FIG. 3, the core wire holder 3 and the insert 4 must be designed to have a small diameter and the insert 4 have a large diameter. Can be. Further, as shown in FIG. 1B, the distal end of the core wire holder 3 is shaped like a mortar, and the taper of the insert 4 presses the core wire 2 from the outside.

The plurality of contact pins 5 are aligned and fixed to the insert 4 as shown in FIG. The needles 5D of the plurality of contact pins 5 aligned and fixed to the insert 4 are pierced from the opposite sides of the cutouts of the plurality of core wires 2 aligned and fixed to the core wire holder 3, and the fastening shell 7 is tightened. Then, the internal thread 7A of the fastening shell 7 is screwed into the external thread 3A of the core wire holder 3, and the flange 7B provided inside the fastening shell 7 presses the insert 4, and FIG.
(A) is reached. In this state, each needle 5D cannot be pulled out from each core wire 2.

Next, a connector according to a second embodiment of the present invention will be described with reference to FIGS.

In FIG. 3, the core wire holder 3 is a cable 1
The needles 5D protrude from the fitting portion of the insert 4 and are pierced prior to the core wires 2. Thereafter, each core wire 2 is pierced by the piercing shell 14 until it hits the insert 4, and in this state, each needle 5D cannot be pulled out from each core wire 2. Further, the coupling 13 is attached to the piercing shell 14 and fitted to the receptacle.

In FIG. 4, the six dip type contact pins 11 of the receptacle 10 are
2 is automatically soldered. Six contact pins are aligned and fixed to the insert 4.

When the coupling 13 is fitted to the receptacle 10, the small diameter portions 5C of the six contact pins are connected to the printed circuit board 12 via the six dip-type contact pins 11, respectively.

Next, a connector according to a third embodiment of the present invention will be described with reference to FIG.

This connector has a structure in which a cable and another cable are connected by a relay plug. FIG.
As shown in the figure, the relay plug 9 is symmetrical, a plurality of contact pins 5 are aligned and fixed to the insert 4 of the relay plug 9, and a male screw 9 A is provided on the outer peripheral surface of the relay plug 9. Is cut off. The core wire 2 of the cable 1 connected to the left and right sides of the relay plug 9 is composed of many strands, and the core wire 2 has a plurality of cores. After inserting the plurality of core wires 2 into the plurality of holes of the core wire holder 3 and fitting the connection shell 8 to the core wire holder 3, the cable base 6
To fix the core wire holder 3 to the cable 1 and trim the ends of the plurality of core wires 2. The plurality of core wires 2 are arranged and set for each color.

When the cables 1 on the left and right sides are connected by the relay plug 9, the connection is performed as follows. First, the needles 5D of the plurality of contact pins 5 aligned and fixed to the insert 4 of the relay plug 9 are pierced from the opposite side into each cutout of the plurality of core wires 2 aligned and fixed to the core wire holder 3. Next, when the female screw 8A of the connection shell 8 is screwed into the male screw 9A of the relay plug 9, the step 8B of the connection shell 8 presses the flange 3B of the core wire holder 3 and the connection of the left and right cables 1 is completed. . In this state, each needle 5D cannot be pulled out from each core wire 2.

In each of the embodiments of the present invention, a screw structure is employed for fitting the core wire holder to the fastening shell or the connection shell, but a one-touch fitting structure utilizing a spring such as a bayonet is employed. You can also.

[0035]

As is apparent from the above description, the present invention has the following advantages.

(1) In the operation of connecting a plurality of core wires composed of many strands to a connector (or plug), a needle of a contact pin is inserted into a cut end of the core wire.
The operation of stripping the insulator coating of the core wire can be omitted.

(2) Since the contact pin and the core wire are securely in contact with each other, a stable electric signal can be supplied for a long period of time.

(3) A groove is provided in the contact pin pierced into the core wire, and a conductive adhesive is applied to the groove so that the core wire and the contact pin can be sufficiently contacted with a wide contact area.

(4) This connector can be applied not only to connection with one cable, but also to a relay plug and a receptacle.

(5) No tools or devices are required to connect the core wire to the connector (or plug), and the connection can be performed in a factory or on site.

[Brief description of the drawings]

FIG. 1 is a sectional view of a first embodiment of the present invention,
(A) shows a connected state, and (b) shows a disassembled state of a part.

FIG. 2 is a front view of a contact pin according to the first embodiment of the present invention.

FIG. 3 is a cross-sectional view illustrating a state before connection of a design change example of the core wire holder and the insert according to the first embodiment of the present invention.

FIG. 4 is a front view of a second embodiment of the present invention.

FIG. 5 is a sectional view of a third embodiment of the present invention.

[Explanation of symbols]

 1 Cable 2 Core Wire 3 Core Wire Holder 3A Male Thread 3B Flange 4 Insert (Plug) 5 Contact Pin 5A Large Diameter Section 5B Small Diameter Section 5C Small Diameter Section 5D Needle 5E Groove 6 Cable Base 6A Female Thread 7 Fastening Shell 7A Female Thread 7B Flange 8 Connection Shell 8A Female thread 8B Step 9 Relay plug 9A Male thread 10 Receptacle 11 Dip type contact pin 12 Printed circuit board 13 Coupling 14 Piercing shell

Claims (4)

[Claims] 1. A cable having a plurality of core wires whose ends are trimmed, a core wire holder having a plurality of core wires aligned and fixed and having a male fitting portion on an outer peripheral surface, and the core wire holder being attached to the cable. A cable base to be fixed, a plurality of contact pins having a needle at a tip, an insert for aligning and fixing the plurality of contact pins, and a female that presses the insert and fits into the male fitting portion of the core wire holder. A fastening shell having a fitting portion on the inner peripheral surface,
A connector for simplifying cable connection, wherein the plurality of needles are inserted into the plurality of core wires. 2. The connector according to claim 1, wherein a groove is provided in the needle of the contact pin. 3. The connector according to claim 2, wherein a conductive adhesive is applied to the groove. 4. A cable having a plurality of core wires whose ends are trimmed, a core wire holder having a plurality of core wires aligned and fixed, and having a male fitting portion on an outer peripheral surface, and the core wire holder being attached to the cable. A cable base to be fixed, a plurality of contact pins having needles at both ends, an insert for aligning and fixing the plurality of contact pins, and a relay plug having a male fitting portion on the outer peripheral surface, and pressing the core wire holder, and A connection shell having a female fitting portion on the inner peripheral surface that fits into the male fitting portion of the relay plug, and the plurality of needles on both sides are respectively pierced into the plurality of core wires. Connector with simplified cable connection.