JPS5853750B2 - Denki Teki Plug-in Kairogunnicansuru Plug-in Connector Ohei Setsushita Setsuzokuban - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a connection board in which plug-in connectors for electrical plug-in circuits are arranged side by side.

Such a connection board is used for the wiring configuration of devices and systems in which individual functional units are connected in a plug-in manner.

In this case, the plug-in circuit group consists of a conductive plate with conductive parts made by printing or etching, and components "brazed" thereto.

One end of this group of circuits is provided with a plug-in pin for connecting all the circuits, which is inserted into a corresponding plug-in connector.

On the other side of the plug-in connector, all the connections are arranged in one plane, which is usually accommodated in a plane perpendicular to the conductive plate.

Connections in this connector are made by "brazing" or, more recently, by winding conductive wires around square pins.

In any case, in this connector, many conductors transmitting various signals run in parallel, and due to the influence of the capacitance between each conductor, disturbance impulses such as pulses from the power supply line may lead to other pulse signals. Leakage to conductor.

It is therefore imperative that conductor paths for sensitive signals be protected from this disturbance.

Accordingly, in the present invention, in the above-mentioned plug-in connector, a part of the electric signal flowing through the connector circuit is converted by a photoelectric converter into an optical signal passing through a light guide provided in the connector, or vice versa. shall be

Only by making a part of the connector optically coupled in this manner can signal conductors sensitive to electrical leakage be dealt with relatively easily.

This is because the optical link is not affected by electrical signals, so the leakage effects mentioned above are better resolved.

In addition, in the connector portion provided with the photoelectric converter, it is preferable to provide a passage into which the photoconductor is inserted on the connection side.

The converter will then have an electrical socket into which the plug-in pin of the plug-in circuit is inserted and an optical socket for connecting the light guide to the converter.

A light guide is then fixed to this optical socket by means of a light guide adhesive.

It is also possible to use many transducers to set the optical signal direction in various combinations, and to configure the terminals of the connectors so that they can be connected to many plug-in pins in the plug-in circuit. good.

It is also possible to combine photoelectric converters provided in different plug-in connectors into a so-called logic circuit via a light guide.

The invention will now be described in detail with reference to the following drawings.

FIG. 1 shows a connection board for a group of nine plug-in circuits, for example, as seen from its connection side.

In other words, the connection board has nine plug-in connectors 1 to 9 arranged in parallel.
It consists of a plate 9 forming a plate having on its connection side conductor pins 25 which can be connected to each other, for example by wrapping leads 26, as can be seen from the right side in FIG.

Also, the smaller side of the connection board is the second plug-in connector 11~
19, which has a large number of holes 22 (second
(see figure), into which a light guide 20 is inserted as shown in FIG.

The second plug-in connectors 11 to 19 each have a photoelectric converter 31 therein as shown in FIG. 3, and a signal circuit is formed by them.

FIG. 2 is a cross-sectional view of a portion of FIG.
3 is inserted into a plug-in connector 2 and a plug-in connector 12 having a photoelectric converter 31 (see FIG. 3).

A plug-in pin 24 for connection to another plug-in connector (not shown) is provided on the opposite end surface of the plug-in circuit 21.

Note that such a two-sided connection configuration is not provided in all systems.

This plug-in connector 2 has a pin 25 on the opposite side of the plug-in circuit 21, and this pin 25 connects the entire connection board with the pin 25 of the adjacent plug-in connector via a lead wire 26. Let's do it.

The connecting board to be connected is preferably a wrapping board.

A second connector 12 is connected above this connector 2, and its height determines the total height of the device including the lapping board.

The connector 12 has a photoelectric converter 31, which converts the electrical signal led through the plug-in pin of the plug-in circuit 21 into an optical signal.

FIG. 2 shows a cross section of six holes 22 in the connector 12, each of which accommodates a light guide 20 shown in FIG. 3.

As shown in FIG. 1, each of these light guides 20 is a distant relative of the interconnection of the photoelectric converters 31 of each of the second connectors 11 to 19.

When plug-in connectors 11 to 19 having photoelectric converters 31 are arranged in a panel, the length and position of the light guide 20 to which the photoelectric converters 31 are connected can be set by a calculation program.

FIG. 3 shows a cross section of one of the main parts (for example, the plug-in connector 12) of the second plug-in connectors 11-19.

That is, a photoelectric converter 31 is embedded in the connector 12, and its light entrance and exit surfaces are located at the opening 32 of the hole 22.

The light guide 20 is inserted into the opening 32 of the hole 22 and adhered therein with a light-conducting adhesive 33, and the outflow of the adhesive is prevented by a closing protrusion 34 in the opening 32.

FIG. 4 schematically shows one combination of two photoelectric converters E, S in a plug-in connector 12, for example.

In the figure, E is a converter on the receiving side, and S is a converter on the transmitting side. Both converters have a common electrical signal terminal, which is connected to the plug-in pin 23 of the plug-in circuit 21 (not shown). .

The optical signal then passes in the direction indicated by the arrow through both the light guides which are in contact with the leading and exit surfaces of the receiving side E and the transmitting side S, respectively.

FIG. 5 shows another combination of photoelectric converters in the plug-in connector 12, in which the optical signals pass in the opposite direction to that in FIG.

In FIG. 6, the converter consists of two transmitters S, the combination forming a signal source, as can be seen from the double arrows indicating the direction of optical signal flow.

In FIG. 7, both converters each form a receiver of a photoelectric signal, and the combination forms a negative photoelectric signal source.

In FIG. 8, transducers S, St and E are installed in different plug-in connectors.

In this case, the converter St is an electrically controlled predetermined barrier, for example a cell, and with the electrical inputs E1 and E2 and the same output A, this element forms an AND gate.

FIG. 9 has a configuration similar to that of FIG. 8, but in this case, an analysis circuit SA for electrical selection is connected to the receiver E.

This circuit SA then makes it possible to detect disturbances in the signal state O of the electrical output A, for example disturbances caused by interruptions in the light guide.

FIG. 10 shows a photoelectric OR circuit.

That is, from a central light transmitter ZS via two light guides one in each case E1. An electrically controllable preemption barrier St with E2 and each subsequent receiver E receives the signal.

In this case, the respective preemptive barrier St and the receiver E are connected by a light guide.

A common output section A for both receiving sections E supplies the output signal of this OR circuit, and the input signal is an electrical signal for both input sections E0. Given to E2.

Note that the photoelectric conversion device of FIG. 10 can be provided in one plug-in connector if it uses the same type of converter.

If different transducers are used, they are each provided in separate plug-in connectors and are connected to one another via light guides.

[Brief explanation of the drawing]

Fig. 1 is a front view of one embodiment of the connection board according to the present invention, Fig. 2 is a vertical side view thereof, Fig. 3 is an enlarged longitudinal side view of the main part, and Figs. 4 to 10 are photoelectric converters. FIG. 4 is a configuration wiring diagram showing different usage states of the . In FIGS. 1 to 3, 1 to 9 are plug-in connectors arranged in parallel, and 11 to 19 are photoelectric converters and light guides 2.
0, 21 is a plug-in circuit, 22 is a conductor path, and 31 is a photoelectric converter.

Claims (1)

[Claims] 1 several electrical plug-in circuit boards installed in parallel 2
1, and a photoelectric converter which is connected to each of the plug-in circuits by plug-in pins 23 and arranged in parallel, and which converts a part of the current flowing in the plug-in circuit into an optical signal or vice versa. a plurality of plug-in connectors 11 to 19 in which 31 are embedded; each of the plug-in connectors is provided with a hole 22 on a side surface thereof to form a light inlet or a light outlet of the photoelectric converter;
2 by inserting the light guide 20 into the plug-in connector 1
1. A connection board in which plug-in connectors for electrical plug-in circuits are arranged in parallel for optical transmission between 1 and 19.