JPH086834B2 - Solenoid valve manifold - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solenoid valve manifold, and more particularly to a solenoid valve manifold configured to transmit drive signals for energizing and deactivating solenoid valves in a manifold by serial data. .

[0002]

2. Description of the Related Art Conventionally, in a fluid control system, when a large number of solenoid valves are used in a device or machine, the piping work is simplified as much as possible, and moreover, a manifold is provided in order to reduce the mounting space. It has been practiced to configure the above into a single block, and to connect a solenoid valve to it. That is the so-called solenoid valve manifold.

[0003]

In this case, the wiring for energizing the solenoid coil forming each solenoid valve is usually made by using two to four electric wires for each solenoid valve.
Therefore, as the number of solenoid valves connected to the manifold increases, the wiring space and the wiring cost increase, and there is a drawback that the utilization of the effective space is not promoted and maintenance and inspection becomes complicated. Further, it has been pointed out that the manifold limits the set number of solenoid valves mounted on the base, so that it is not possible to easily increase or decrease the solenoid valves.

Therefore, the object of the present invention is to reduce the number of various control wirings for controlling the respective solenoid valves constituting the solenoid valve group and to easily increase or decrease the number of solenoid valves connected to the manifold. It is to provide a solenoid valve manifold capable of performing.

[0005]

In order to achieve the above-mentioned object, the present invention is a solenoid valve manifold in which a plurality of solenoid valves are connected in series to a manifold.
A conversion circuit that converts a depleted serial control signal into a parallel control signal and sends it to each solenoid valve is formed in a block shape.
Incorporated into the conversion unit, the conversion unit to output a latch signal for holding control data signal of the solenoid valve of the respective driving power source and the control data signal input and output connectors
Has a data, further, the said conversion unit and the input and output connectors
Electrically connected to the solenoid valve or manifold via
It is characterized in that it is connected to an adjacent conversion unit .

[0006]

Since the terminals of the conversion unit take in the drive power source, control data, etc. directly through the terminals, and the conversion unit itself has a block shape so as to be connected to the manifold or the adjacent manifold, the solenoid valves are connected in series. Etc. can be easily performed without incorrect wiring.

[0007]

The preferred embodiments of the solenoid valve manifold according to the present invention will now be described in detail with reference to the accompanying drawings.

In FIG. 1, reference numeral 10 indicates a control circuit, and a bus line 12 for data input and a power supply line 14 are connected to the input side of the control circuit 10. The control circuit 10 includes a data conversion unit 16, a control unit 18, and a power supply unit 20 inside. The conversion circuits 22a, 22b, 22c, 22d and 22e for controlling the drive of the five solenoid valves arranged on the base of the manifold are configured separately from the control circuit 10 and are installed corresponding to the respective solenoid valves. It is configured to

Basically, the conversion circuits 22a to 22e
Have the same circuit configuration, and each conversion circuit is provided with two solenoid valve drive output terminals for energizing or deactivating the solenoid coils of the respective solenoid valves. That is, the conversion circuit 22a has OUT1 and OUT2 as its output terminals, the circuit 22b has output terminals OUT3 and OUT4, the conversion circuit 22c has OUT5 and OUT6, and the conversion circuit 22d has OUT7 and OUT8. In addition, the conversion circuit 22e further includes OUT9 and OUT10.

Therefore, the data converter 16 constituting the control circuit 10 converts the electromagnetic valve control signal sent from the bus line 12 from a parallel signal to a serial signal, and the serial signal is converted as a serial signal from the output terminal DT to the above conversion. It serves to feed the circuits 22a to 22e. On the other hand, the control unit 18 basically outputs two types of signals for controlling the operations of the conversion circuits 22a to 22e, that is, a clock signal and a latch signal. The clock signal is output from the output terminal CKT, and the latch signal is output from the output terminal LUT. The control circuit 10 further supplies power lines 24a, 24 for supplying a predetermined power to the solenoid valves connected to the conversion circuits 22a to 22e.
b and 24c.

On the other hand, each of the conversion circuits 22a to 22e has a data input terminal DI and a data output terminal DO, and the conversion circuits 22a to 22e are connected in series for data transmission. The data input terminal DI of 22a is connected to the data output terminal DO of the conversion circuit 22b,
The data input terminal DI of the conversion circuit 22b is connected to the data output terminal DO of the conversion circuit 22c. Next, the data input terminal DI of the data conversion circuit 22c is connected to the data output terminal DO of the conversion circuit 22d, and the data input terminal DI of this conversion circuit 22d is connected to the conversion circuit 22e.
Is connected to the data output terminal DO of. In this case, the data input terminal DI of the conversion circuit 22e is connected to the data output terminal DT of the control circuit 10. Between the conversion circuits 22a to 22e and between the data input terminal DI of the conversion circuit 22e and the control circuit 10.
Data signal lines 26a to 26e are interposed between the output terminals DT and DT.

Next, each of the conversion circuits 22a to 22e has a terminal CK and a terminal LU for receiving a clock signal and a latch signal from the control unit 18. These terminals CK and LU are connected to the output terminals CKT and lines 28 and 30 extending from the output terminals LUT of the control unit 18.

As described above, the conversion circuits 22a to 22e.
2 have the same circuit configuration, and therefore, FIG.
The electrical internal structure of the conversion circuit 22e is shown as a representative of these conversion circuits.

As can be easily understood from the figure, the conversion circuit 22e comprises a shift register 32 consisting of 2 bits and parallel output terminals Q1 and Q2 for deriving output signals of the first bit and the second bit of the shift register 32. And a latch circuit 34 connected to these output terminals Q1 and Q2, respectively.
a and 34b are included. Output sides of the latch circuits 34a and 34b are connected to drivers 36a and 36b. Therefore, the data input terminal DI of the conversion circuit 22e is connected to the serial data signal input terminal SI of the shift register 32, and the CK terminal for introducing the clock signal from the clock signal line 28 is the CK terminal of the shift register 32. Connected. On the other hand, the latch terminal LU of the conversion circuit 22e is connected to the respective CK terminals of the latch circuits 34a and 34b, and the terminal Q2 of the shift register 32 is branched and connected to the data output terminal DO.

Therefore, the converters 22a to 2 as described above are used.
A solenoid valve manifold incorporating 2e will be described with reference to FIG.

In FIG. 3, reference numeral 40 indicates a solenoid valve, reference numeral 42 indicates a manifold, reference numeral 44 indicates a relay block, and reference numeral 46 indicates a conversion unit. The conversion unit 46 is substantially composed of a rectangular parallelepiped block body as shown in the drawing, and includes the conversion circuits 22a to 22e therein, respectively. Each conversion unit 46 is connected to the serial data signal line 2
6, male connector 48 and 49 having six sets of terminals for connecting to clock signal line 28, latch signal line 30 and power supply lines 24a to 24c, male connector 48 including terminals 48a to 48f, while The other male connector 49
Has terminals 49a to 49f. Further, a male connector 50 including three terminals 50a, 50b and 50c, which are connected to the solenoid coil of the solenoid valve 40 to send control signals and electric power, is arranged above the male connectors 48 and 49. . By the way, the relay block 44 is
As can be easily understood from FIG. 3, the relay blocks 44 are to be fitted in the recesses on the rectangular parallelepiped formed in the manifold 42, and each relay block 44 receives the male connectors 48, 49 of the conversion unit 46. Female connectors 52, 53
Have. In fact, the female connector 53 has terminals 53a to 53f that receive the terminals 48a to 48f of the male connector 48, while the female connector 52 has terminals 4 of the male connector 49.
It includes terminals 52a to 52f for receiving 9a to 49f. The female connectors 52 and 53 are connected to each other in the relay block 44 by a conductor wire (not shown). Furthermore, three terminals 5 are provided on the upper front of the manifold 42.
A female connector 54 having 4a, 54b and 54c is mounted, and a female connector 56 having three terminals 56a, 56b and 56c is similarly mounted on the upper surface of the manifold 42. Furthermore, the solenoid valve 40 is provided with a male connector 58 composed of three terminals 58a, 58b and 58c.

In the structure described above, the male connector 48 of the conversion unit 46 is fitted into the female connector 53 of the relay block 44, while the male connector 4 of the conversion unit 46 is inserted.
9 is fitted into the female connector 52 of the relay block 44. This allows the male connector 50 of the conversion unit 46 to fit into the female connector 54 of the manifold 42.

As described above, each manifold 42
If the conversion unit 46 is attached to the serial data signal line 2 extending from the control circuit 10 shown in FIG.
6, clock signal line 28, latch signal line 30, power supply line 2
4a to 24c will be connected to each other. Furthermore, the male connector 58 of the solenoid valve 40 is connected to the manifold 42.
If it is connected to the female connector 56 of
The respective outputs and power supplies of 2e are connectors 50, 54, 5
6 and 58 to the individual solenoid valves 40.

FIG. 4 shows the electrical connection relationship among the conversion unit, the relay block, the manifold and the solenoid valve configured as described above.

In the figure, reference numerals 40a and 40b denote solenoids which constitute the solenoid valve 40.

The solenoid valve manifold according to the present invention is basically constructed as described above. Next, its operation and effect will be explained.

First, a control signal for the solenoid valve is sent from the data bus line 12 to the control circuit 10, while a predetermined electric power is supplied from the power supply line 14 to the power supply unit 20. In the power supply unit 20, the power is supplied to the conversion circuit and the solenoid valve via the power supply lines 24a to 24c. In this case, for example, the power supply line 24a supplies a DC power of 5V, and the power supply line 24c supplies a DC power supply of 24V.
b may be used for grounding. In fact, this power supply is a connector 5 which is connected to each other by assembly.
It will be delivered to the individual solenoid valve 40 via 0, 54, 56 and 58. On the other hand, the data converter 16 receives the solenoid valve control signal from the data bus line 12 and converts it into a serial signal if it is a parallel signal. That is, the control circuit 10 outputs the converted serial data signal for controlling the solenoid valve from the terminal DT to the data input terminal DI of the conversion circuit 22e via the data signal line 26e. At the same time, a clock signal for shifting the shift register 32 in the conversion circuit is sent from the clock signal output terminal CKT of the control unit 18 in synchronization with the signal. The serial data signal is shifted from the Q1 terminal to the Q2 terminal each time it is introduced to the data signal input terminal SI of the shift register 32, and the signal output from the Q2 terminal by the next clock signal is output from the adjacent upper shift register. It is introduced to the input terminal SI.
In this way, the serial data signal shifts to the right every time the clock signal is sent out, and after the clock signal has been sent 10 times, the first serial data shifts corresponding to the output terminal OUT1 of the conversion circuit 22a. Register 3
2 is output from the parallel output terminal Q2, while the second serial output is output from the parallel output terminal Q1 of the shift register 32 corresponding to the output terminal OUT2 of the conversion circuit 22a,
Similarly, each serial data signal is output from each shift register. That is, the tenth serial data signal is output from the parallel output terminal Q1 of the shift register 32 corresponding to the output terminal OUT10 of the conversion circuit 22e.
Therefore, when a latch signal is output from the output terminal LUT via the control unit 18 of the control circuit 10, the parallel output signals output from the Q1 terminal and the Q2 terminal of the shift register 32 of the respective conversion circuits 22a to 22e are latch circuits. Three
4a, 34b are respectively latched by the driver 36a,
Solenoid valve drive output terminals OUT1 to OUT via 36b
It is output from 10. In this way, the serial data signal is output from the solenoid valve drive output terminals OUT1 to OUT10 as a parallel output each time the latch signal from the control unit 18 is output, and energizes the solenoids constituting the respective solenoid valves 40. The valve can be opened and closed.

[0023]

In the solenoid valve manifold according to the present invention,
As described above, the serial control signal for energizing / deactivating the solenoid valve
Conversion to convert to parallel control signal and send to each solenoid valve
Incorporate the circuit into a block-shaped conversion unit
It consists of. In this case, each of the conversion units
Solenoid valve control data signal, drive power supply and the control data
Input / output connector for inputting / outputting latch signal
By providing a converter, the conversion unit can be
Electrical connection to solenoid valve or manifold via connector
It is connected to the adjacent conversion unit.
And are possible. Therefore, by the input / output connector
Control data signal of solenoid valve, drive power supply and control data
Easily transmit latch signals that hold data signals
Can be. As a result, the number of wires for multiple solenoid valves
And the wiring space can be reduced.
In addition, the cost of wiring can be significantly reduced.
It Further, there are advantages such as easy maintenance.
In addition, there is no restriction on the number of connected manifolds.
It is possible to meet various needs as a whole device
It is possible to obtain various solenoid valve manifolds.

[Brief description of drawings]

FIG. 1 is an electric circuit block diagram showing a connection relationship between a control circuit of a solenoid valve unit according to the present invention and a conversion circuit attached to each solenoid valve.

FIG. 2 is a block circuit diagram showing an internal configuration of the conversion circuit shown in FIG.

FIG. 3 is a schematic perspective explanatory view showing a combined state of a solenoid valve, a manifold, a relay block, and a conversion unit.

FIG. 4 is a block diagram when the combinational relationship shown in FIG. 3 is further replaced with an electrical connection relationship.

[Explanation of symbols]

 10 ... Control circuit 12 ... Bus line 14 ... Power supply line 16 ... Data conversion part 18 ... Control part 20 ... Power supply part 22a-22e ... Conversion circuit 24a-24c ... Power supply line 26 ... Serial data signal line 28 ... Clock signal line 30 ... Latch signal line 32 ... Shift register 34a, 34b ... Latch circuit 36a, 36b ... Driver 40 ... Solenoid valve 42 ... Manifold 44 ... Relay block 46 ... Conversion unit 48, 49, 50 ... Male connector 52, 53, 54, 56 ... Female Connector 58 ... Male connector

Claims (1)

[Claims] 1. A solenoid valve manifold in which a plurality of solenoid valves are connected to a manifold, wherein a serial control signal for energizing / deactivating the solenoid valve is converted into a parallel control signal and sent to each solenoid valve. Bed conversion circuit for feeding
It is incorporated in a conversion unit formed in a lock shape, and the conversion unit is a control data signal for each solenoid valve, a drive power source.
And a latch signal for holding the control data signal input and
Input / output connector for inputting the conversion unit
Is a solenoid valve or a manifold through the input / output connector
And the adjacent conversion unit.
A solenoid valve manifold, which is characterized by being installed in series .