JP2000077113A - Multi-conductor electric connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To quickly enable soldering work without disassembling a connector main body, and additional speedy soldered connection/disconnection to/from a voluntary conductor, and to make easy the work to process an electric contact. SOLUTION: In a multi-conductor electric connector which comprises a connector main body 1 and a connector cover that encloses and maintains the connector main body 1 therein, one of electric contacts 3 is adapted to be relatively movable to the other electric contact 3 when the connector main body 1 is dismounted from the connector cover.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, connection of peripheral devices of electronic computers, control of measuring instruments, mechatronics, etc.
The present invention relates to an electrical connector for a multi-core wire used in connection with various electric devices, and more particularly, to an electrical connector used for connecting a multi-core wire among these electrical connectors used in the field of light electric current, a connector and a multi-core wire are used. The present invention relates to an electrical connector for a multi-core wire, in which an arbitrary wire can be easily additionally attached by soldering.

[0002]

2. Description of the Related Art FIG. 7 shows the internal structure of a typical conventional round electric connector C1 (male) for multicore wires. For reference, a part of an electric connector C2 (female) to be coupled to the round electric connector C1 for a multi-core wire (left in FIG. 7A)
7 also shows a multi-core cable K (right in FIG. 7A).

As shown in FIG. 7, the multi-core round electric connector C1 has a connector body 101 and a connector cover 102 for accommodating and holding the connector body 101 therein.
It is composed of

The connector body 101 includes a plurality of electrical contacts 1 each having one end serving as a solder connection portion 103 and the other end serving as a connection terminal portion 104 connected to the electrical connector C2.
05 and the same number of insertion holes 10 as the number of the electric contacts 105.
A pair of insulating support members 108, 109 having 6, 107
And a pair of insulating support members 108 and 109 sandwich a stopper 110 provided substantially at the center of the electric contact 105. The insertion hole 106 formed in one of the insulating support members 108 is a hole through which the solder connection portion 103 can pass.

[0005] The connector cover 102 is formed as a cylindrical body having a rectangular mounting flange portion 111 substantially at the center in the height direction.
2, the multi-core cable K faces, and the other opening 113 faces the electrical connector C2. Inside the connector cover 102, the pair of insulating support members 108 and 109 are positioned and the connector body 10 is positioned.
A pair of engagement projections 114, 114 for storing and holding the first 1 are provided.

In order to assemble the circular electric connector C1 for multi-core wires, one of the insulating support members 10 that are separated
The core wire 115 of each cable of the multi-core cable K is passed through the insertion hole 106 of FIG.
The tip of the core wire 115 and the solder connection portion 103 of the electric contact 105 are soldered. After the connection, the core wire 115 is pulled rightward, and the stopper member 110 is abutted against the insulating support member 108.

Then, all the electric contacts 10 to be used are
After performing the same operation for 5, the other insulating support member 109 was inserted into each electric contact 105,
The stopper member 110 is sandwiched between the pair of insulating support members 108 and 109. With this, the connector body 10
1 is completed. By engaging the pair of insulating support members 108 and 109 with the engagement protrusions 114 and 114, the connector main body 101 is connected to the connector cover 1.
02. This is the round electric connector C for multi-core wire.
1 is completed.

[0008]

However, when the electric contact 105 is finely separated as described above, the insulating support member 109 which presses the stopper 110 is used.
The diameter of the insertion hole 107 is small in order to easily insert the electric contact 105, or the electric contact 105 is displaced or the height is different when the insulating support member 109 for holding down is mounted as shown in FIG. Or electrical contact 10
5, the electrode contacts 10 are very large.
5 through the insertion hole 107 at the same time.

When the electric contact 105 is turned sideways so that the tip of the electric contact 105 is aligned with the insertion hole 107 provided in the insulating support member 109, the core wire 1
The electric contact 105 to which no 15 is connected may fall off. The work of resetting the dropped electric contact 105 on the insulating support member 108 requires a lot of trouble.

[0010] In addition, because of the design structure that maximizes the use of the limited mounting space, the purpose is to make the cross-section smaller than to shorten the overall length of the connector. In many cases, the interval between the 105 is narrow (in the case of a narrow one, the adjacent interval is about 1 mm) and high density.

For this reason, if an electrical connector to which a plurality of core wires 115 are already connected is fixed inside the device, and another core wire 115 is additionally attached to the electrical connector by soldering, an error may occur. In some cases, the soldering iron may touch the insulating coating 116 of the core wire 115 already connected, and may melt the insulating coating 116. For example, this involves repairing when a connection portion is peeled off by applying a force to a soldered portion and only a single core wire 115 comes off, and this requires a great deal of trouble, especially for an unskilled worker. You.

The core wire 115 to be additionally connected later is connected to the electric contact 10 at the tip of the core wire 115 from the cable end 117.
5 may have a different length from the other core wires 115, or may sometimes use a core wire 115 having a different conductor diameter. In many cases, retrofitting is very troublesome.

The above-described round electric connector C2 for a multi-core wire has a structure in which, after the connector cover 102 is removed, the electric contact 105 and the insulating support members 108 and 109 can be separated to perform a cable connection operation. However, when the connector is fixed to a place where the worker inside the device is difficult to reach by the mounting flange portion 111, or the multi-core cable K connected to the electric connector C1 is deep inside the device. The connector body 101 is (fine) when the length of the connector body 101 is small because the length is short because the parts are sewn out from the intricate parts and the degree of freedom is low due to the integration with other cables. The cable cannot be connected by disassembly.
It is often necessary to perform the connection work with the 02 removed.

As shown in FIG. 9, in order to efficiently connect the core wire 115 of the multi-core cable K to the electrical contacts 105, the connector cover 102 guides the core wires 115 to the electrical contacts 105. In some cases, a groove 118 is provided. However, when such a structure is adopted, there is a problem that the connector body becomes large. In addition, this structure is designed so that it is convenient to connect all the core wires 115 at the same time, and is suitable for the work of additionally connecting or changing only one core wire. Not configured.

[0015]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a method in which, when a connector body is detached from a connector cover, one of the electrical contacts is moved relative to another electrical contact. By being configured to be able to move to,
A core wire can be newly or additionally connected to each electric contact without separating the connector body.

As described above, the core wire can be connected to the electric contact without displacing the connector main body, and only the core wire to be connected can be moved relatively with respect to the other core wires. Even when the core wire is narrow or when a core wire is additionally installed, the connection work of the core wire becomes easy.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments to which the present invention is applied will be described in detail with reference to the drawings.

<Embodiment 1> As shown in FIG. 1, a multi-core electrical connector C1 of the present embodiment
And a connector cover 2 for housing and holding the connector main body 1 therein. The connector body 1 includes a plurality of electric contacts 3 and a first insulating support member 4, a second insulating support member 5, and a third insulating support member 6 that arrange and hold the electric contacts 3. Become.

The electric contact 3 is, as shown in FIG.
One end is a connection terminal portion 7 and the other end is a pin-shaped connector terminal having a solder connection portion 8. The connection terminal section 7
7 (a) is connected to the female electrical connector C2, and one solder connection portion 8 is connected to the core wire 115 of the multi-core cable K shown in FIG. Has become. A stopper member 9 formed as a disk-shaped protrusion is fixed between the connection terminal portion 7 and the solder connection portion 8.

As shown in FIG. 1, the first insulating support member 4 and the second insulating support member 5 are made of a plastic which has good workability, is inexpensive and has excellent insulating properties, and substantially passes through the center line thereof. A plurality of insertion holes 10 at predetermined intervals on the line,
11 is formed as a disk. In the present embodiment, since the number of the electric contacts 3 is three, the insertion holes 10 and 11 are provided in a number corresponding to the number of the electric contacts 3.

As shown in FIG. 1, the third insulating support member 6 is similarly formed of a disc made of plastic, and has a plurality of loose fitting holes 12 at predetermined intervals on a line substantially passing through the center line thereof. Have. The loose fitting hole 12 has a larger diameter than the insertion holes 10 and 11 so that the electric contact 3 can be smoothly inserted, and the stopper member 9 is a hole that cannot be inserted.

As shown in FIG. 1, the first insulating support member 4, the second insulating support member 5, and the third insulating support member 6 have the first insulating support member 6 interposed therebetween. The support member 4 and the second insulating support member 5 are provided on both sides thereof. The electric contacts 3 are inserted into the insertion holes 10 and 11 of the first insulating support member 4 and the second insulating support member 5 and the loose fitting holes 12 of the third insulating support member 6, respectively. ing. Stopper member 9 of the electric contact 3
Is provided between the second insulating support member 5 and the third insulating support member 6.

On the other hand, as shown in FIG. 1, the connector cover 2 is formed as a cylindrical body having a rectangular mounting flange portion 13 substantially at the center in the height direction. The core cable K faces, and the female electrical connector C2 faces the other opening 15. Inside the connector cover 2, the first insulating support member 4, the second insulating support member 5, and the third insulating support member 6 are positioned, and a pair of engagements for housing and holding the connector body 1 are provided. Protrusions 16, 16 are provided.
By positioning and holding the three insulating support members 4, 5, 6 between the engagement protrusions 16, 16, the connector main body 1 is fixed to the connector cover 2.

In the multi-core electrical connector C1 configured as described above, the multi-core cable K shown in FIG.
To newly or additionally connect the core wire 115 to the electrical contact 3 by soldering, the connector body 2 is removed from the connector body 1. First, as shown in FIGS. 2 and 3,
After crimping the second insulating support member 5 and the third insulating support member 6, the first insulating support member 4 is pulled toward the solder connection section 8, and the stopper member 9 and the first insulating support member 6 are pulled. The facing distance L with the member 4 is increased.

In this state, the first insulating support member 4
Then, the second insulating support member 5 is fixed by a jig or the like.
Then, as shown in FIG. 3, the third insulating support member 6 can freely move left and right. Since the loose fitting hole 12 of the third insulating support member 6 has a large hole diameter through which the electric contact 3 can be smoothly inserted, the third insulating support member 6 becomes freely movable. .

Here, as shown in FIG. 4, the electric contact 3 to be soldered can be relatively moved with respect to the other electric contacts 3 by pulling it from the right end. Even when the interval between the electric contacts 3 is small and the core wire 115 is already connected to the solder connection portion 8 as a bundle, the solder connection portion 8 can be moved to a portion slightly shifted from the bundle. By doing so, the connector body 1
The core wire 115 can be easily connected to the electric contact 3 without disassembly. Even when the core wire 115 is retrofitted to the assembled multi-core wire electrical connector C1, the desired electrical contact 3 can be easily pulled out and soldered simply by removing the connector cover 2.

<Embodiment 2> In this embodiment, the electric contact 3 is provided with a bendable portion 17 and the other electric contact 3 is bent by bending the bendable portion 17 of the electric contact 3 for solder connection. Is relatively moved with respect to.

That is, as shown in FIG. 5A, a bendable portion 17 that can be freely bent is provided between the stopper member 9 of the electric contact 3 and the solder connection portion 8. The bendable portion 17 is formed by, for example, forming the electric contact 3 from a spring material and making only a part of the electric contact 3 thin.

With this configuration, as shown in FIG. 5 (b), only the electric contact 3 soldered to the core wire 115 is bent from the bendable portion 17 and connected to the other electric contact 3. It becomes possible to perform solder connection by relatively moving. In addition, the solder connection portion 8 of a specific electric contact 3, particularly the solder connection portion 8 of the surrounding electric contact 3,
When it is desired to perform additional soldering on a portion where the core wire 115 is already connected, the bendable portion 17 is bent so as to make it easy to work around the portion.
Appropriate processing can be easily performed without damaging the surrounding core wire 115 and insulating coating 116.

After completion of the soldering, FIG.
As shown in the figure, the solder connection portion 8 of the adjacent electric contact 3
So that the first insulating support member 4 and the second insulating support member 5
And an insulating support member 18 different from the above. Then, the connector body 1 is housed in the connector cover 2 to complete the multi-core electrical connector C1.

The insulating support member 18 covering the bendable portion 17 is gripped by one engagement projection 16 provided on the connector cover 2 and a newly provided engagement projection 19.

<Embodiment 3> In this embodiment, a coil spring (spring) 20, which is an elastic member, is provided between the stopper member 9 and the first insulating support member 4, and the first insulating support member 4 is fixed. Then, one of the electric contacts 3 is moved relative to the other electric contacts 3 by moving it against the urging force of the coil spring 20.

That is, as shown in FIG.
Between the stopper member 9 and the first insulating support member 4 between the insulating supporting member 4 and the second insulating supporting member 5, and a coil spring 20 that urges the coil spring 20 in a direction to increase the distance between the stopper member 9 and the first insulating supporting member 4. Provide. The coil spring 20 is in a contracted state and urges the opposing distance between the stopper member 9 and the first insulating support member 4 to be always widened.

With such a configuration, as shown in FIGS. 6B and 6C, the electric contact 3 to which the connector cover 2 is removed, the first insulating support member 4 is fixed, and the solder is connected is provided. By pushing the electric contact 3 from the left to the right, the electric contact 3 can be relatively moved with respect to the other electric contacts 3 and soldered.

That is, when the connector cover 2 is removed, as shown in FIG. 6 (b), the first insulating support member 4 of the connector body 1 is pushed rightward by the coil spring 20, and the coil spring 20 has a free length. At this point, the first insulating support member 4 stops. Then, FIG.
After the first insulating support member 4 is fixed, the electric contact 3 to be soldered is pushed rightward against the urging force of the coil spring 20 as shown in FIG. Then, only the electric contact 3 protrudes relatively to the other electric contact 3, and the other electric contact 3 can be connected to the core wire 115 without disturbing.

The solder connection portion 8 of a specific electrical contact 3, particularly the solder connection portion 8 of the surrounding electrical contact 3.
In addition, when it is desired to perform additional soldering on a portion where the core wire 115 is already connected, only the electric contact 3 to be soldered is relatively moved around the periphery so as to facilitate the work. Accordingly, appropriate processing can be easily performed without damaging the surrounding core wire 115 and insulating coating 116.

As described above, a specific embodiment to which the present invention is applied has been described. However, the present invention can be variously modified without being limited to the above-described embodiment.

For example, in the second embodiment, the foldable portion 17 may be a separate component from the connection terminal portion 7 and the solder connection portion 8. In this way, the efficiency is low and the resistance is low.

In the third embodiment, the coil spring 20 is used as the elastic member. However, the present invention is not limited to the coil spring 20. For example, a rubber member that urges the stopper member 9 and the first insulating support member 4 in a direction that always widens the opposing distance. Has the same effect.

In each of the above-described embodiments, a round pin is used as the electric contact 3, but the same effect can be obtained by using a flat terminal. Further, the shape of the stopper member 9 is a disk shape, but the shape is not limited to this.

[0041]

The present invention is embodied in the form described above and has the following effects.

According to the multi-core electrical connector of the present invention,
Soldering work can be performed quickly without disassembling the connector body, and the risk of affecting the surrounding cable insulation coating during the soldering work is reduced. Opening and processing of the electrical contacts are facilitated, and work can be performed efficiently and reliably.

According to the multi-core electrical connector of the present invention, it is not necessary to use special tools and parts at the time of work, and it is also necessary to form guide grooves corresponding to the respective terminals on the connector cover. In addition, the size and cost can be made equal to those of an electric connector generally used conventionally.

As described above, according to the electrical connector for a multi-core wire of the present invention, the reliability is improved in terms of electrical and mechanical aspects, and the non-uniformity by the operator is reduced. In addition, by being able to perform reliable soldering to the connection part,
After the solder connection, there is also an effect of increasing the strength against peeling or pulling of the solder connection portion generated when handling the multi-core cable.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing an electric connector for a multi-core wire according to a first embodiment.

FIG. 2 is a front view showing a connector main body of the multi-core electrical connector according to the first embodiment.

FIG. 3 is a front view showing a connector main body portion of the multi-core electrical connector according to the first embodiment, and shows a state where a facing distance between a stopper member and a first insulating support member is widened.

FIG. 4 is a front view showing a connector main body portion of the multi-core electrical connector according to the first embodiment, showing a state where only electrical contacts to be soldered are moved with respect to other electrical contacts.

FIGS. 5A and 5B are a front view showing a part of the electric connector for a multi-core wire according to the second embodiment in a cut-away manner and a front view showing a connector main body part, wherein FIG.
(B) shows a state in which only the electrical contacts to be soldered are bent, and (c) shows a state in which the connector body is assembled to the connector cover.

FIGS. 6A and 6B are a front view showing a part of the electric connector for a multi-core wire according to the third embodiment in a cut-away manner, and a front view showing a connector main body. FIG. (B) shows a state in which the first insulating support member is pushed rightward by the coil spring, and (c) shows
Indicates a state in which only the electric contacts to be soldered are moved with respect to the other electric contacts.

FIG. 7 shows a conventional multi-core wire electrical connector.
(A) is a front view with a part broken away, and (b) is a right side view thereof.

FIG. 8 is a front view of the multi-core electrical connector showing a state in which the arrangement of the electrical contacts is shifted.

FIG. 9 is a partially cutaway front view of a conventional multi-core electrical connector in which a guide groove is formed in a connector cover.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connector main body 2 Connector cover 3 Electric contact 4 First insulating support member 5 Second insulating support member 6 Third insulating support member 7 Connection terminal portion 8 Solder connection portion 9 Stopper member 12 Free fitting hole 17 Bendable Part 20 Coil spring

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Ryozo Yamauchi 1440, Mukurosaki, Sakura-shi, Chiba Fujikura Co., Ltd.F-term (reference)

Claims (3)

[Claims] 1. A plurality of electrical contacts, one end of which is a connection terminal and the other end is a solder connection, and a stopper member is fixed between the connection terminal and the solder connection. A first and a second insulating support member formed with a plurality of insertion holes for inserting and holding the electrical contacts at predetermined intervals, and the first and the second insulating support members being opposed to each other. A multi-core wire electric connector comprising: a connector main body in which the electrode contacts are inserted and held in respective insertion holes such that the stopper member is provided between the connector main bodies; and a connector cover for housing and holding the connector main body inside. In the connector, between each of the stopper members and the first insulating support member,
A multi-core electrical connector, further comprising a third insulating support member having a hole into which each of the electrode contacts is inserted in a loosely fitted state. 2. A plurality of electrical contacts, one end of which is a connection terminal and the other end is a solder connection, and a stopper member is fixed between the connection terminal and the solder connection. A first and a second insulating support member formed with a plurality of insertion holes for inserting and holding the electrical contacts at predetermined intervals, and the first and the second insulating support members being opposed to each other. A multi-core wire electric connector comprising: a connector main body in which the electrode contacts are inserted and held in respective insertion holes such that the stopper member is provided between the connector main bodies; and a connector cover for housing and holding the connector main body inside. An electrical connector for a multi-core wire, wherein an elastic member is provided between each of the stopper members and the first insulating support member. 3. A plurality of electrical contacts, one end of which is a connection terminal and the other end is a solder connection, and a stopper member is fixed between the connection terminal and the solder connection. A first and a second insulating support member formed with a plurality of insertion holes for inserting and holding the electrical contacts at predetermined intervals, and the first and the second insulating support members being opposed to each other. A multi-core wire electrical connector comprising: a connector main body in which the electrode contacts are inserted and held in respective insertion holes so that the stopper member is provided between the connector main bodies; and a connector cover for housing and holding the connector main body inside. In the connector, a bendable portion is provided between the stopper member and the solder connection portion.