JPH0313664Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an electromagnetic manifold, and more specifically, the invention relates to an electromagnetic manifold, and more specifically, to transmission of a drive signal for energizing and deenergizing a solenoid valve in the manifold using serial data. The present invention relates to a solenoid valve manifold configured to perform.

[Prior art] Conventionally, in fluid control systems, when a large number of solenoid valves are used in equipment or machinery, manifolds have been used to simplify piping work as much as possible and to reduce the installation space. It is common practice to construct a single block and connect a solenoid valve to it. This is the so-called solenoid valve manifold. In this case, wiring for supplying current to the solenoid coils constituting each electromagnetic valve is usually performed using two to four electric wires for each electromagnetic valve.

[Problem that the invention aims to solve] Therefore, as the number of solenoid valves connected to a manifold increases, the wiring space and wiring cost increase, which not only does not promote effective use of space but also complicates maintenance and inspection. There are drawbacks such as: Furthermore, since the number of solenoid valves mounted on the base is limited by the manifold, it has been pointed out that there are inconveniences such as the inability to easily increase or decrease the number of solenoid valves.

Therefore, the purpose of the present invention is to reduce the number of various control wirings for controlling each solenoid valve constituting a solenoid valve group, and to extremely easily increase or decrease the number of solenoid valves connected to a manifold. The object of the present invention is to provide a possible solenoid valve manifold.

[Means for Solving the Problems] In order to solve the above problems, the present invention provides a control circuit that receives an external solenoid valve control signal in a solenoid valve manifold in which a plurality of solenoid valves are arranged in series in the manifold body. A control unit to be incorporated and a conversion unit incorporating a conversion circuit for converting serial control signals from the control circuit into parallel control signals are formed separately in the form of blocks, and at least the conversion unit is detachable from the manifold body. The present invention is characterized in that it is freely configured and includes a connector for connecting electric circuits between adjacent conversion units and a connector for connecting to a solenoid of an electromagnetic valve.

[Operation] Serial control signals from the control circuit constituting the control unit are converted into parallel control signals by a conversion unit including a conversion circuit, and sent to the individual solenoid valves. Since the conversion unit is detachable from the manifold, the desired number of solenoid valves on the manifold can be easily attached and connected, and maintenance management can also be easily performed by removing the conversion unit.

[Embodiments] Next, preferred embodiments of the solenoid valve manifold according to the present invention will be described in detail with reference to the accompanying drawings.

First, FIG. 1 shows an electric circuit for driving and controlling a group of solenoid valves. That is, in FIG. 1, reference numeral 10 indicates a control circuit, and a data input bus line 1 is connected to the input side of this control circuit 10.
2 and a power supply line 14 are connected. The control circuit 10 includes therein a data conversion section 16, a control section 18, and a power supply section 20. Conversion circuits 22a, 22b, 22c, 2 for controlling the drive of five solenoid valves arranged in series on the base of the manifold.
2d and 22e are constructed separately from the control circuit 10 and are constructed to be incorporated in correspondence with the respective electromagnetic valves.

Basically, the conversion circuits 22a to 22e have the same circuit configuration, and each conversion circuit is provided with two electromagnetic valve drive output terminals for energizing or deenergizing the solenoid coil of the respective electromagnetic valve. . That is, the conversion circuit 22a has the output terminal
It has OUT1 and OUT2, and also has a conversion circuit 22b.
has output terminals OUT3 and OUT4, and converter circuit 2
2c has OUT5 and OUT6, and the conversion circuit 22d
has OUT7 and OUT8, and furthermore, the conversion circuit 2
2e has OUT9 and OUT10.

Therefore, the data converter 16 constituting the control circuit 10 converts the solenoid valve control signal sent from the bus line 12 from a parallel signal into a serial signal, and converts the serial signal into a serial signal from the output terminal DT to the conversion circuit 22a. 22e. On the other hand, the control section 18 basically outputs two types of signals for controlling the operations of the conversion circuits 22a to 22e, namely, 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. Note that the control circuit 10 further includes respective conversion circuits 22a to 22.
It has power lines 24a, 24b and 24c for supplying a predetermined power to the electromagnetic valve connected to e.

On the other hand, each of the conversion circuits 22a to 22e has a data input terminal DI and a data output terminal DO,
Since the respective conversion circuits 22a to 22e are connected in series for data transmission, the conversion circuit 2
The data input terminal DI of 2a is connected to the data output terminal DO of the conversion circuit 22b, and also to the data output terminal DO of the conversion circuit 22b.
The data input terminal DI of 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 conversion circuit 22.
The data input terminal DI of this conversion circuit 22d is connected to the data output terminal DO of the conversion circuit 22d.
It is connected to the data output terminal DO of 2e. In this case, the data input terminal of the conversion circuit 22e
DI is the data output terminal DT of the control circuit 10
is connected to. Note that each conversion circuit 22a
to 22e and between the data input terminal DI of the conversion circuit 22e and the output terminal DT of the control circuit 10.
Data signal lines 26a to 26e are interposed between them, respectively.

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 section 18. These terminals CK and LU are connected to lines 28 and 30 extending from the output terminals CKT and LUT of the control section 18.

As mentioned above, the conversion circuits 22a to 22e each have the same circuit configuration, and therefore,
Figure 2 shows conversion circuit 2 as a representative of these conversion circuits.
2e shows the electrical internal configuration.

As can be easily understood from the figure, the conversion circuit 22
e has a shift register 32 consisting of 2 bits and parallel output terminals Q1 and Q2 from which output signals of the first bit and second bit of this shift register 32 are derived, and are connected to these output terminals Q1 and Q2, respectively. The circuit includes latch circuits 34a and 34b. The output side of the latch circuits 34a and 34b is connected to a driver 36.
a, 36b. Therefore, the data input terminal DI of the conversion circuit 22e is connected to the shift register 3.
Connect to the serial data signal input terminal SI of No. 2, and
The CK terminal for introducing the clock signal from the clock signal line 28 is connected to the CK terminal of the shift register 32. On the other hand, the latch terminal LU of the conversion circuit 22e is connected to the CK terminal of each of the latch circuits 34a and 34b.
The terminal Q2 of the shift register 32 is branched and connected to the data output terminal DO.

The electric circuit incorporated into the solenoid valve manifold according to the present invention is basically constructed as described above. This will be explained with reference to A and FIG.

In FIG. 3A and FIG. 3B, reference number 4
0 indicates the manifold body, and reference numeral 4
2 indicates a group of solenoid valves. On the other hand, reference numeral 44 indicates a control unit, and reference numeral 46 indicates a group of conversion units.

The manifold main body 40 is composed of six substantially rectangular parallelepiped blocks 40a to 40f. In this case, these block bodies 40a to 4
0f is connected via a tie rod (not shown),
Air passages 50a to 50c are defined in each of the block bodies 40a to 40f, respectively, and communicate with each other across the adjacent block bodies. Furthermore, a rectangular parallelepiped-shaped recess 52 is formed in the center of the front of each of the block bodies 40a to 40f (see FIG. 3B).

The solenoid valves 42a to 42e constituting the solenoid valve group 42 are each formed of a rectangular parallelepiped block,
Five block bodies 4 of the manifold main body 40
It is configured to be placed and fixed on the upper surfaces of 0a to 40e, respectively. In addition, each solenoid valve 42a to 42e
A male connector 58 having three terminals 58a to 58c is provided protruding from the lower surface of the connector.

The control unit 44 is formed of a substantially L-shaped block and includes the control circuit 10 therein. The control unit 4
4 is a block body 40 of the manifold body 40;
It is placed and fixed on the upper surface of f. In this case, the block portion 44a that is bent and extends downward from the main body of the control unit 44 is connected to the block body 40f.
The block portion 44a is positioned in front of the block portion 44a.
A recess 52 of the block body 40f is located at the center of the back surface of the block body 40f.
A rectangular parallelepiped-shaped convex portion 59 is formed which fits into the convex portion 59 . On the other hand, on one side of the block portion 44a, 6
A male connector 60 having six terminals 60a to 60f is provided protrudingly, and the six terminals 60a to 60f are connected to each other.
0f is connected to respective terminals of the serial data signal line 26, clock signal line 28, latch signal line 30, and power supply lines 24a to 24c extending from the control circuit 10. In the figure, reference numeral 62 indicates a cable that converges the data input bus line 12 connected to the input side of the control circuit 10 and the power supply line 14.

Conversion unit 4 constituting conversion unit group 46
6a to 46e are each formed of a rectangular parallelepiped blotter body, and include the conversion circuits 22a to 22e therein, respectively. In this case, each conversion unit 4
6a to 46e are 5 of the manifold main body 40.
It is configured to be detachably attached to the front of each of the block bodies 40a to 40e. That is, a rectangular parallelepiped-shaped convex portion 63 that fits into the recess 52 of the block bodies 40a to 40e is formed at the center of the back surface of the conversion units 46a to 46e, and each of the conversion units 46a to 46e has a convex portion 63 on one side thereof. The serial data signal line 26, clock signal line 28, and latch signal line 3 of the control circuit 10
A female connector 64 having six terminals for connection to the 0 and power lines 24a to 24c is provided. Moreover, these conversion units 46a to 4
Similarly, a male connector 66 having six terminals is disposed on the other side of the connector 6e. In fact, the female connector 64 includes terminals 64a to 64f;
On the other hand, the male connector 66 has terminals 66a to 66f.
including. Female connectors 68 that fit into the male connectors 58 of the electromagnetic valves 42a to 42e are disposed on the upper surfaces of the conversion units 46a to 46e. The female connector 68 in this case has three terminals 68a-68c which are received in the terminals 58a-58c of the male connector 58.

In the above configuration, the male connector 60 of the control unit 44 is connected to the conversion unit 4.
6e into the female connector 64. moreover,
The male connector 66 of the conversion unit 46e is inserted into the female connector 64 of the next conversion unit 46d. After the five conversion units 46a to 46e are connected to the control unit 44 in this manner, the protrusions 59 and 63 provided on the block portion 44a of the control unit 44 and the back surface of each of the conversion units 46a to 46e are connected to the manifold body. 40 block bodies 40a to 40f
The control unit 44 and conversion units 46a to 46e can be easily attached to the front of the manifold body 40 by fitting into the recess 52 of the manifold body 40. At that time, the serial data signal line 26 and the clock signal line 2 to which the control circuit 10 shown in FIG.
8. Latch signal line 30, power line 24a to 24c
will be connected to each other. Next, solenoid valve 4
If the male connectors 58 of the conversion units 2a to 42e are fitted and connected to the female connectors 68 of the conversion units 46a to 46e, the conversion units 46a to 46e
are connected to the solenoids of the individual solenoid valves 42a to 42e via the respective output sides of the converter circuits 22a to 22e incorporated in the converter circuits 22a to 22e and power connectors 68 and 58. That is, the solenoid valves 42a to 42e, the control unit 44, and the conversion units 46a to 46 configured in this manner
FIG. 4 shows the electrical connection relationship of 6e. In addition,
In the figure, reference numerals 43a and 13b indicate the solenoid valve 4.
The solenoids 2a to 42e are shown.

The electromagnetic valve manifold according to the present invention is basically constructed as described above, and its operation and effects will be explained next.

First, a solenoid valve control signal is sent from the data bus line 12 to the control circuit 10, while a predetermined power is supplied from the power supply line 14 to the power supply unit 20. In the power supply unit 20, power supply lines 24a to 2
4c to the conversion circuits 22a to 22e and the solenoid valve 42. In this case, for example, a 5V DC power source may be used from the power line 24a, a 24V DC power source may be used from the power line 24c, and the power line 24b may be used for grounding. In fact, this power will be delivered to the individual solenoid valves 42 via connectors 68 and 58 which are connected to each other by assembly. On the other hand, the data conversion section 16 receives the electromagnetic valve control signal from the data bus line 12, and if it is a parallel signal, converts it into a serial signal. That is, the control circuit 10 derives the converted serial data signal for controlling the solenoid valve 42 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 22e is sent from the clock signal output terminal CKT of the control section 18 in synchronization with the signal. Each time the serial data signal is introduced into the data signal input terminal SI of the shift register 32, it is shifted from the Q1 terminal to the Q2 terminal, and the signal output from the Q2 terminal by the next clock signal is shifted to the adjacent shift register 32. upper input terminal
Introduced to SI. In this way, the serial data signal is shifted to the right every time the clock signal is sent out, and after the clock signal is sent out 10 times, the first serial data signal is shifted to the right side every time the clock signal is sent out. The second serial output is output from the parallel output terminal Q2 of the shift register 32, which corresponds to the output terminal OUT2 of the conversion circuit 22a, and similarly, the respective serial data signals are It is output from each shift register 32. That is, the 10th serial data signal is sent to the conversion circuit 22e.
is output from the parallel output terminal Q1 of the shift register 32 corresponding to the output terminal OUT10 of the shift register 32. Therefore, when a latch signal is output from the output terminal LUT via the control section 18 of the control circuit 10,
Parallel output signals output from the Q1 and Q2 terminals of the shift registers 32 of the respective conversion circuits 22a to 22e are latched by latch circuits 34a and 34b, respectively, and sent from the solenoid valve drive output terminals OUT1 to OUT10 via drivers 36a and 36b. Output. In this way, the serial data signal is transmitted to the controller 1.
Every time the latch signal from 8 is output, the solenoid valve drive output terminals OUT1 to OUT10 are output in parallel.
It is possible to energize solenoids 43a and 43b constituting each electromagnetic valve 42 to open and close the valve.

[Effects of the invention] According to the invention, as described above, a conversion circuit for converting a series signal to a parallel signal for controlling the solenoid valve is provided corresponding to each solenoid valve, and furthermore, this The conversion circuit and the control circuit are electrically connected by a block unit, and the control circuit sends a direct data signal to each conversion circuit, while the control section sends a clock signal. and sends a latch signal.
Therefore, these not only make it possible to easily transmit the control output signal of the solenoid valve, but also reduce the number of wires for the solenoid valve group, and as a result, the wiring space can be reduced. At the same time, there is an effect that wiring costs are significantly reduced. Furthermore, since the conversion unit and control unit are removable from the manifold body, the number of solenoid valves mounted on the manifold body can be selected as desired.
In addition, there is the advantage that maintenance management is facilitated by removing individual units, and the number of blocks connected in the manifold body can be selected as desired, making it possible for the device as a whole to meet various needs. It becomes possible to obtain a solenoid valve Nifold that can be used. However, in the present invention, the bus line connecting each conversion unit and the wiring of the solenoid valve are directly connected via the connector installed inside it, so the desired result can be achieved without any major structural changes to the manifold body. It has the advantage of achieving its purpose.

[Brief explanation of drawings]

FIG. 1 is an electric circuit block diagram showing the connection relationship between the control circuit of the solenoid valve manifold according to the present invention and the conversion circuit attached to each solenoid valve, and FIG.
The figure is a block circuit diagram showing the internal configuration of the conversion circuit shown in FIG. 3A is an exploded perspective view of the main parts, and FIG. 4 is a block explanatory diagram when the combination relationship shown in FIG. 3A is further replaced with an electrical connection relationship. 10...control circuit, 12...bus line,
14...Power line, 16...Data converter, 1
8...control unit, 20...power supply unit, 22a to 22e
... Conversion circuit, 24a to 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... Manifold body, 42... Solenoid valve group, 43a, 43b... Solenoid, 44... Control unit, 46...
. . . Conversion unit group, 46a to 46e .

Claims (1)

[Scope of Claim for Utility Model Registration] In a solenoid valve manifold in which a plurality of solenoid valves are arranged in series in a manifold body, a control unit incorporating a control circuit that receives a solenoid valve control signal from the outside and a series control signal from the control circuit. Conversion units incorporating conversion circuits for converting the signals into parallel control signals are each formed separately in the form of a block, and at least the conversion units are configured to be detachably attached to the manifold body, and the electric circuit between adjacent conversion units is formed separately. A solenoid valve manifold characterized by comprising a connector that connects to the solenoid of the solenoid valve and a connector that connects to the solenoid of the solenoid valve.