JPH0681154U - Connector signal transmission device between electronic circuit structure units - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a signal transmission device for connecting fixed-side connectors of an electronic circuit device to each other, which reduces the number of electric wires of the electronic circuit device and enables signal transmission over a long distance. A transmitter 4 and a receiver 5 are provided in each of a pair of connection-side connectors 1a and 2a, and the transmitter of one connection-side connector 1a or 2a and the other connection-side connector 2 are provided.
a or 1a and the two receiving wires 3a, 3a
The information signals can be transmitted from any one of the connection side connectors to the other connection side connector by combining them at b.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is a connector signal used for transmitting an information signal from a fixed side connector of an electronic circuit structure (electronic circuit structure unit) that is organically integrated into one fixed side connector of another electronic circuit structure unit. The present invention relates to a transmission device.

[0002]

[Prior art]

 In electronic circuit devices, for example, it is often the case that an information signal must be sent from an electronic circuit structure unit formed on one printed circuit board to an electronic circuit structure unit formed on another printed circuit board. In this case, conventionally, a connector set (consisting of a fixed side connector and a connection side connector) is generally provided on each board, and the connection side connectors are connected to each other by transmission wires.

However, since the number of signals to be transmitted between the electronic circuit structural units is usually large, each connector set generally has a fixed side connector and a connection side connector with 14 to 60 pins. Therefore, the number of transmission wires that connect a pair of connection side connectors is the same as the number of pins.

FIG. 6 shows a conventional connector signal transmission device for coupling electronic circuit structural units to each other, where 1 is a connector set on the side for transmitting signals and 2 is a connector set on the side for transmitting signals. Each of the connector sets 1 and 2 includes a fixed side connector 1a and 2a and a connection side connector 1b and 2b. 3 is an electric wire group for connecting the connection side connectors 1b, 2b of the connector sets 1, 2 with the same number of transmission electric wires 3a, 3b, 3c as the number of connecting pins p of the connector sets 1, 2. ... are bundled together. In the figure, w1 is a substrate on which one electronic circuit structural unit is formed, and w2 is a substrate on which another electronic circuit structural unit is formed.

[0005]

[Problems to be solved by the device]

 In the conventional connector signal transmission device described above, there are many transmission wires 3a, 3b, 3c, ... Connecting the connection side connectors 1b, 2b, which makes it difficult to make the electronic circuit device compact. There is also a problem in that it makes it difficult to perform maintenance such as finding and repairing failures.

Generally, the electric currents flowing through the transmission wires 3a, 3b, 3c, ... Are extremely weak, so that the conventional connector signal transmission means composed of the connector sets 1 and 2 and the transmission wires transmits a long distance signal. It cannot be transmitted.

It is an object of the present invention to provide a connector signal transmission device between electronic circuit structure units, which can rationally solve such a problem.

[0008]

[Means for Solving the Problems]

 In order to achieve the above object, in the present invention, a transmission unit for transmitting an information signal to a connection side connector on each side of a pair of electronic circuit structure units to another electronic circuit structure unit, and the other electronic circuit structure A receiver is provided to receive the information signal transmitted from the unit, and the transmitter of one connection side connector and the receiver of the other connection side connector are respectively joined by two transmission wires. The transmitting part is a transmitting side control circuit part that converts an information signal input from the fixed side connector through the coupling pin into a predetermined transmission signal, and a part that transmits the transmission signal through two transmission wires. The receiving circuit section is configured to receive a transmission signal through the two transmission lines, and the transmission signal output from the receiving circuit section is used as the information. Eggplant shall consist intended to force out the fixed-side connector through the coupling pins this was converted into No. was a reception-side control circuit unit.

[0009]

[Action]

 According to this, the two transmission wires that connect the transmitter and receiver enable the transmission of information signals between connector sets, which reduces the number of transmission wires and reduces the number of transmission wires. Realize compactness and easy maintenance.

Providing the transmitting unit and the receiving unit on each connection side connector does not mean that the information signal is transmitted only unilaterally between the connector sets, and it does not mean that the information signal is transmitted between them. It is assumed that the information signal is also transmitted from the side.

Further, the information transmission between the fixed side connector and the connection side connector is performed by the coupling pin which is the same as the conventional one. Therefore, in implementing the present invention, the conventional electronic circuit structural unit has the fixed side connector. No change is required, including that.

[0012]

【Example】

 FIG. 1 is a block diagram showing a connector signal transmission device embodying the device of the present invention, FIG. 2 is a block diagram showing a transmitting unit, and FIG. 3 is a block diagram showing a receiving unit. The same parts as those in the conventional example are designated by the same reference numerals.

As shown in the figure, a transmission section 4 and a reception section 5 are provided inside the pair of connection side connectors (in the illustrated example, they are formed as plugs) 1a, 2a, and one connection side The transmitter 4 of the connector 1b or 2b and the receiver 5 of the other connector 2b or 1b on the other side of the connection are connected to each other by two transmission wires 3a and 3b.

Therefore, the transmission unit 4 converts the information signal input from the plurality of coupling pins p into a specific transmission signal, and the transmission side control circuit unit 6 and the transmission signal into two transmission lines. The transmission circuit unit 7 is configured to transmit through 3a and 3b. At this time, the transmission signal is made up of, for example, a 16-bit word, and the transmission circuit section 7 is provided with a shift register 8 capable of inputting this word as shown in FIG. A driver (voltage-current conversion device) 9 is provided for transmitting the temporarily held transmission signal through the two transmission wires 3a, 3b to the shift register while providing a required pulse output to the shift register. The oscillator circuit 10 and the frequency divider circuit 11 are provided for this purpose. Reference numeral 12 is a terminal portion to which the transmission signal output from the control circuit unit 6 is input.

Further, the receiving unit 5 outputs the transmission signal received through the two transmission wires 3 a and 3 b, and a reception circuit unit 13 that outputs the transmission signal and outputs the transmission signal output from the reception circuit unit 13 to the information. The receiving side control circuit section 14 is configured to be converted into a signal and output from a large number of coupling pins p. At this time, the receiving circuit unit 13 is provided with a shift register 15 for holding a transmission signal as shown in FIG. 2 (b), and the transmission signal sent through the two transmission wires 3a and 3b is transferred to the shift register. In addition to providing a driver (current-voltage conversion device) 16 for inputting into the shift register 15, the shift register 15 is provided with an oscillating circuit 17 and a frequency dividing circuit 18 for giving a required pulse output. Reference numeral 19 is a terminal portion for sending the transmission signal output from the shift register 15 to the control circuit unit 14.

When the connector signal transmission device according to the present invention configured as described above is used, it is transmitted to, for example, the fixed side connector (which is a receptacle in the illustrated example) 1b fixed to one wiring board w1. The plug 1a on the side is inserted, and the plug 2a on the receiving side is inserted into the fixed side connector 2b provided on another wiring board w2.

Now, an arbitrary coupling pin (may be one or plural) P .... of the plug 1a is supplied with a weak current (eg, about several milliamperes) from the substrate w1. When the information signal is added, the transmission side control circuit unit 6 receives the information signal and outputs a specific transmission signal for displaying the state, that is, 16-bit word information, for example. In connection with this, the word information is input to the shift register 8, while an appropriate pulse output is input from the oscillation circuit 10 and the frequency dividing circuit 11, whereby the shift register 8 holds this word. At the same time, it outputs to the driver 9, and the driver 9 puts this word on the two transmission wires 3a and 3b and sends it out. In this case, the signal current flowing through the transmission electric wires 3a and 3b can be made extremely large (for example, about 0.1 to several tens of amperes) as compared with that of the information signal.

When the word thus sent out reaches the driver 16 on the receiving side, the driver 16 inputs this word into the shift register 15. On the other hand, since an appropriate pulse output is given to this register 15 from the oscillation circuit 17 and the frequency dividing circuit 18, the shift register 15 holds the word and outputs it to the receiving side control circuit section 14. Further, the receiving side control circuit unit 14 receives this word and sends a weak current to the connecting pin p ... of the receiving side plug 2a corresponding to the connecting pin p ... of the transmitting side plug 1a. It becomes a state. Thus, the receiving section 5 outputs the same information signal as the information signal given to the transmitting section 4.

Thus, the information signal is transmitted between each pair of the transmitting unit 4 and the receiving unit 5, and the pair of connector sets 1 and 2 can mutually transmit the information signal from either side. It becomes a transmitted relationship.

A circuit example of the transmitting unit 4 and the receiving unit 5 according to the present invention is shown in more detail as shown in FIGS. 4 and 5, wherein FIG. 4 shows the transmitting unit and FIG. 5 shows the receiving unit. Show.

In the drawing, substantially the same parts as those in the above embodiment are designated by the same reference numerals, but the other reference numerals will be described as follows. That is, 21 is a logic circuit section, 22 is a flip-flop circuit, ABC is a frequency setting signal input terminal, A to H are parallel input terminals, CK is a clock information terminal, D is a data input terminal, EN is a possible information input terminal, GND is a ground terminal, INH is a prohibition information input terminal, Q and Q0 to Q3 are counting output terminals, QH is a serial output terminal, QA to QP are parallel output terminals, R is a reset information input terminal, and S is an output setting input terminal. , SI is a serial input terminal, S / L is a serial write switching information input terminal, ST is a stroke selection signal input terminal, and Vcc is a power supply terminal.

[0022]

As described above, according to the present invention, the number of transmission wires connecting between the connector sets in the electronic circuit device is significantly reduced, which enables wiring in a narrow space. This contributes to the compactness of electronic circuit devices, makes it easier to find and repair failures such as wire breaks, and simplifies maintenance, and can transmit information signals without difficulty even at a distance of several hundred meters. Is.

Further, in implementing the present invention, it is not necessary to change circuits and parts (including fixed side connectors) of each electronic circuit structure unit, and therefore, it is provided in the conventional electronic circuit structure unit. The fixed connectors will be immediately connected to each other instead of the conventional connector signal transmission device.

[Brief description of drawings]

FIG. 1 is a block diagram showing a connector signal transmission device embodying the present invention.

2A and 2B are a block diagram showing a transmitting unit and a block diagram showing a receiving unit according to the same transmission apparatus.

FIG. 3 is a plan view and FIG. 3B is a side view showing a connector main suspension according to another connector signal transmission device embodying the present invention.

FIG. 4 is a circuit diagram showing a specific example of a transmitter according to the present invention.

FIG. 5 is a circuit diagram showing a specific example of a receiving unit according to the present invention.

FIG. 6 is a diagram of a conventional connector signal transmission device.

[Explanation of symbols]

 1a and 2a Connection side connector 3a and 3b Transmission electric wire 4 Transmission part 5 Reception part 6 Transmission side control circuit part 7 Transmission circuit part 13 Reception circuit part 14 Reception side control circuit part p Coupling pin

Claims (1)

[Scope of utility model registration request] 1. A transmission section for transmitting an information signal to a connection side connector on each side of a pair of electronic circuit structure units to the other electronic circuit structure unit, and an information signal transmitted from the other electronic circuit structure unit. And a receiving section for receiving one of the connecting side connector and the receiving section of the other connecting side connector are respectively joined by two transmission wires, and the transmitting section is connected from the fixed side connector. A transmission side control circuit unit that converts an information signal input via a coupling pin into a predetermined transmission signal, and a transmission circuit unit that transmits the transmission signal through two transmission wires, The receiving unit receives the transmission signal through the two transmission lines, and the transmission signal output from the reception circuit unit is converted into the information signal and then passed through the coupling pin. A connector signal transmission device between electronic circuit structural units, which comprises a receiving side control circuit unit which is intended to output to a fixed side connector.