JPS6310482A - Connection for connector - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Summary] When connecting multiple ground wires to a common terminal in a cable with a connector, etc., when connecting multiple core wires of the cable and fewer connector terminals than the number of core wires in common, The common relay connection is made by crimp connection on the outside of the connector, eliminating the risk of wire breakage and ground faults that would normally occur when this connection was forced to be housed inside the connector cover, and also improving work efficiency. Furthermore, it is possible to increase the number of connection terminals in the same connector space, resulting in smaller size and higher density.

[Industrial application field]

The present invention relates to a method for connecting connectors of cables with connectors used for connecting signal circuits in electronic and communication equipment.

The recent development of electronic components has been remarkable, especially in semiconductors, connectors, printed wiring boards, wires, etc. For this reason, devices are becoming increasingly smaller and more densely packaged.

Multicore cables are used to connect signal circuits within and between iW racks, and cables with connectors (hereinafter abbreviated as HAS cables), which are connected at both ends with connectors, are often used.

There is also a strong demand for this HAS cable to be smaller and more dense while improving its electrical performance.

[Conventional technology]

Recently, most of the electrical signals connected by HAS cables are pulse signals, and in order to achieve high speed and low level (tQ direction and economical), one pair of twisted wires is used for each signal circuit, and these are multi-layered. A bundled multi-pair cable is used, and in order to avoid induction, the twisting pitch is changed for each pair, and a shielding layer is provided between the layers and over the entire cable to achieve a smaller size and higher density.

On the other hand, since the connection partner at both ends is a printed wiring board via a connector, there is no pair of connection terminals for each signal circuit, and one wire is grounded and several wires are grouped together into one wire.
In addition, connectors are becoming increasingly smaller and more dense.

FIG. 3 shows a conventional example of a method of connecting a connector of a HAS cable.

This bus cable is for 20 signal circuits.

The cable 10 has a core wire 21 of 0.127i+m diameter x 7 copper twisted wires coated with vinyl and nylon, and 25 pairs of 2-core wires with 20 twisted pairs arranged in three circular concentric layers, with a shield on top. It is made of braided and vinyl exterior.
It has flexibility in handling and has an outer diameter of 8. It is finished in a small size.

The connector 92 is a lid with a cover that has 26 contact terminals 52 arranged in four rows in a staggered manner, and the outer size of the connector surface is 16X.
It is 42 phoenix and 48 liters high.

The connection between the cable 10 and the terminal 52 of the connector 92 is 2.
20 twisted pairs are used for the 0 signal circuit, and the remaining 5 twisted pairs are left unconnected.

There are 20 terminals 52 in the connector 92 for each signal circuit, and 6 remaining terminals for each signal circuit.
One wire is used as a common ground terminal for each signal circuit. Since only the l-core wire can be connected to the terminal 52, this 2
The connection method of concentrating the 0-core wire to 6 terminals is as shown in the figure.
Each of the single core wires 21 of each twisted pair 2o of a designated group is taken out and attached to these five core wires 21, another ground wire 31 whose one end is connected to the ground terminal 52, and two more ground wires 3.
2 and 8 core wires are bundled together and connected by soldering, and treated with insulating tape to provide a relay connection portion 62. The other ends of the two ground wires 32 are bundled into another similar group, and 20 signal circuits are commonly connected at 4 groups and 4 relay connections 62 in total.
The wires are concentrated into three terminals 52.

All of these relay connections 62 are housed within the cover of the connector 92.

[Problem that the invention seeks to solve]

However, this common connection relay connection section 62 occupies a large space and is forced to be housed inside the cover, causing wire breakage and ground faults because it presses against the core wire 21 and terminal 52 of the signal circuit. This is dangerous and requires a lot of man-hours.

In addition, there are smaller connectors with higher density terminals and more cables, but this limits the ability to increase the number of connected signal circuits.

[Means for solving problems]

The above-mentioned problems can be solved by using a cable with a connector, as shown in the connector connection method of the present invention shown in FIG.
A method of commonly connecting a plurality of core wires 2 of O and fewer connector terminals 5 than the number, using a connector 9 equipped with a plurality of cable ports 1, and selecting a cable 10 to the cable port 1 into which the cable IO does not fit. The problem is solved by the connector connection method of the present invention, which leads out the core wire 2 and the core wire 3 whose one end is connected to the terminal 5 of the connector 9, and connects them by providing a relay connection section 6 that crimps them together.

[For production]

That is, the above-mentioned problem is solved by forcing the relay connection part 6 out of the connector 9.

All the core wires 2 and 3 led out from the cable port 1 are fixed by a cable restrainer 4 provided at the cable port 1 after being crimped and connected, and the amount of protrusion can be reduced, so that there is no problem in handling.

This is because the crimp connection of the relay connection part 6 is superior in workability and reliability compared to conventional soldering connections, and is also compact and suitable for insulation treatment and fixing if necessary.

In this way, common relay connections can be made without difficulty, eliminating the risk of wire breakage or ground faults within the lid force bar, and also making it possible to increase the number of connection terminals in the same connector space, resulting in smaller size and higher density. It will be done.

〔Example〕

The present invention will be specifically described below with reference to embodiments shown in the drawings.

The same reference numerals indicate the same objects throughout the figures.

FIG. 2 shows an external view of a bus cable according to an embodiment of the present invention.

This bus cable 2 is for 40 signal circuits, which is twice as many as in the conventional example described above.

Cable 10 is also the same as the conventional example, 0.127mm diameter x 7
The core wire is made of stranded copper wire coated with vinyl and nylon, and 25 pairs of twisted two-core wires are arranged and assembled in three circular concentric layers, and a shielding braid and vinyl exterior are placed on top of the flexible wire. Two cables 10 with an outer diameter of 8.2 mm are used.

The lid 91 has 50 contact terminals 51 arranged in two rows per 2.54t1. It is a connector with a cover and has two cable ports 11, and the external size is 11 x 68 on the connector surface.
Cao Rou, height 48 weight 17.

Both cables 10 are introduced into the same cable port 11 and fixed to a cable retainer 41 with a plastic band.

For the connection between the cable 10 and the connector 91, 40 twisted pairs are used for 40 signal circuits, and the remaining 10 twisted pairs are left unconnected.

Forty terminals 51 of the connector 91 are used for each signal circuit, and the remaining ten terminals are used as one-line common ground terminals for each signal circuit. Since only one core wire can be connected to the terminal 51, the connection method for concentrating these 40 core wires into 10 terminals is as shown in the connection method of the connector of the present invention shown in FIG.
A total of 40 twisted pair wires were connected to each grounding terminal 52 at one end. A total of 10 ground wires are led out from another cable port 11 and are collectively crimped and connected using insulated crimp terminals, and this relay connection portion 61 is fixed to the cable retainer 41 with a plastic band.

As described above, instead of the conventional method of using two bus cables, only one bus cable is required.

In general, multi-terminal connectors use cables with more core wires than terminals, but if the cable can pass through the cable opening of the connector, more core wires than the number of terminals can be passed through the connector cover, and other Leading out the cable to the cable port does not pose any problems in terms of space or work.

In the above example, there is one relay connection portion 61, but the number and the presence or absence of insulation are not restricted.

The connector 91 can also be applied to a connector that does not have a plurality of regular cable ports 11, but has a hole through which the number of core wires necessary for relay connection can be drawn out, and a connector cover that is processed so that a crimp terminal can be fixed thereto.

〔Effect of the invention〕

In this way, the method of connecting connectors of the present invention using HAS cables allows common relay connections to be made without difficulty, eliminates the risk of wire breakage or ground faults within the connector cover, and improves reliability and reduces work man-hours.

Furthermore, it is possible to increase the number of connection terminals in the same connector space, resulting in smaller size and higher density, which has a remarkable effect.

[Brief explanation of the drawing]

FIG. 1 shows a method of connecting a connector according to the present invention, FIG. 2 shows an external view of a bus cable according to an embodiment of the present invention, and FIG. 3 shows a method of connecting a connector of a conventional HAS cable. In the figure, 1.11 is the cable opening, 2, 3.21 is the core wire, 20 is the twisted pair, 31.32 is the ground wire, 4.41 is the cable holder, 5.51.52 is the terminal, 6.61.62 is the relay connection, 9.9L92 is the connector, -% 14 No. 2 Kuchisumi et al.

Claims (1)

[Claims] In a method for commonly connecting a plurality of core wires (2) of a cable (10) and fewer connector terminals (5) than the number of core wires (2) in a cable with a connector, a plurality of cable ports (1
), and connect the selected core wire (2) and one end of the cable (10) to the terminal of the connector (9) into the cable port (1) where the cable (10) does not fit. A method for connecting a connector, characterized in that a relay connection part (6) is provided to lead out the core wire (3) connected to (5) and connect the core wire (3) all at once by crimp connection.