JPH0356699Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a solenoid valve device with a printed wiring board used in an industrial machine that utilizes fluid pressure or vacuum pressure.

[Prior Art] As shown in Japanese Utility Model Application Publication No. 54-48427, for example, conventional solenoid valves incorporate electrical or electronic components necessary for controlling and displaying the operation of the solenoid valve into the valve body of the solenoid valve. Alternatively, it was installed in the electromagnetic part, and power was supplied to these electric/electronic parts using conductive wires.

However, in the conventional solenoid valve, it is difficult to miniaturize the solenoid valve in order to form a space in the valve body or solenoid part for installing the necessary electric circuit and electric/electronic components. However, since power is supplied to electrical and electronic components using conductive wires, the number of man-hours required for assembling, maintaining, and inspecting the solenoid valves increases, resulting in high costs.

[Problems to be solved by the invention] The invention makes it possible to install these electrical circuits and electrical/electronic parts in the surplus space around the solenoid valve without having to install them in the valve body or electromagnetic part of the solenoid valve. By doing so, we can reduce the size of the solenoid valve, simplify the structure for power supply to the solenoid valve and the above electric/electronic components, and thereby reduce the man-hours for assembling, maintaining and inspecting the solenoid valve. The problem to be solved is to reduce the cost of the valve device.

[Means for Solving the Problems] The solenoid valve device of the present invention includes a base in which a plurality of fluid passages are formed, and a solenoid valve provided with a pilot valve protruding from one side of the base via a printed wiring board. The electromagnetic valve device is mounted on a solenoid valve device, wherein a power receiving terminal of an electromagnetic portion is formed protrudingly on the pilot valve, and a plurality of fluid passages of the base and each opening of the electromagnetic valve are separately formed on the printed wiring board. An opening for communication is provided, and an extension part extending from the base in the direction of the pilot valve is provided, and printed wiring of an electrical circuit necessary for operating the solenoid valve is provided, and the extension part of the printed wiring board is provided with: The power supply terminal into which the power receiving terminal of the pilot valve is inserted and the connection part to the power source are installed on the base side surface of the extension part, and the necessary electrical and electronic parts are electrically connected to the printed wiring circuit. The above problem is solved by connecting them.

[Function] In the electromagnetic valve device having the above configuration, when a printed wiring board is sandwiched between the electromagnetic valve and the base, and the pilot valve is positioned on the extension of the printed wiring board,
An extra space is formed on the base side of the extended portion of the printed wiring board. Therefore, by providing the electrical and electronic components necessary for the operation of the solenoid valve on the base side of the extended portion of the printed wiring board, instead of providing them in the valve body or the solenoid valve section of the solenoid valve, the above surplus space can be effectively used. It is used for miniaturizing solenoid valves.

In addition, by installing the solenoid valve on the printed wiring board, the power receiving terminal of the pilot valve is connected to the power supply terminal of the printed wiring board, and the solenoid valve and the electrical and electronic components necessary for its operation are connected to the circuit without printed wiring. Since it is electrically connected, the structure for power supply to the solenoid valve and the electric/electronic components is simplified, the number of man-hours for assembling, maintaining, and inspecting the solenoid valve is reduced, and the cost of the solenoid valve device is reduced.

[Embodiment] In the embodiment of the present invention shown in FIGS. 1 and 2, one side of the base 1 has an input port 2, a first
A discharge port 4a and a second discharge port 4b are provided, and a first output port 3a and a second output port 3b are provided in the other side of the base 1, respectively.

The printed wiring board 6 provided on the base 1 via the sealing member 5a has a sealing member 5 on its upper surface.
A valve body 8 of the electromagnetic valve 7 is attached through the valve body 8, and an input opening P, first and second output openings A, B, and first and second output openings are provided in the valve body 8.
The discharge openings Ea and Eb are connected to the input port 2 of the base 1, the first and second output ports 3a and 3b, and the first and second output ports 3a and 3b by openings formed in the printed wiring board 6 and the seal members 5a and 5b. The second discharge ports 4a and 4b are respectively communicated with each other.

A valve hole 9 and a pilot hole 10 are provided through the valve body 8 in the longitudinal direction, and the valve hole 9 has a plurality of enlarged diameter portions provided therein. 2 output openings A, B, and the first and second discharge openings Ea, Eb are communicated with each other,
A communication hole 9a provided in the enlarged diameter portion that communicates with the input opening P also communicates with the pilot hole 10.

An end plate 11 is provided at one end of the valve body 8, in which a passage is formed to communicate the valve hole 9 and the pilot hole 10, and a pilot valve portion 14a and an electromagnetic portion 14b are provided at the opposite end of the valve body 8. A well-known pilot electromagnetic valve 14 is attached to the electromagnetic portion 14b, and a power receiving terminal 15 is formed protruding from the surface facing the printed wiring board 6.

The above-mentioned printed wiring board 6 is formed with an extension part 16 that protrudes laterally from the base 1 and extends along the pilot solenoid valve 14, and a control circuit for the solenoid valve 7 is connected to the extension part 16. , overvoltage and overcurrent protection circuits, polarity and back electromotive force protection circuits, operation display circuits, and other circuits necessary for the operation of the solenoid valve 7 are printed and wired. Electrical/electronic components 20 such as transistors and integrated circuits necessary for the operation of the valve 7 are attached, and the extension part 16 is further provided with a power supply terminal 19 into which the power receiving terminal 15 of the pilot solenoid valve 14 is inserted and connected. The terminal 19 and the electric/electronic component 20,
Each is electrically connected to the printed circuit. However, the above printed wiring can also be provided on the mounting surfaces of the base 1 and the valve body 8.

Each of the printed wiring circuits has a connecting portion 17 exposed on one side of the printed wiring board at the end of the extension portion 16, and a multi-pole connector 18.
The circuit is connected to a power supply by connecting to its connection.

In the solenoid valve device having the above configuration, when the printed wiring board 6 and the solenoid valve 7 are installed on the base 1, each passage of the base 1 communicates with each opening of the solenoid valve 7 through the opening of the printed wiring board 6. At the same time, since the power receiving terminal 15 of the pilot solenoid valve 14 is connected to the power supply terminal 19 of the printed wiring board 6, assembly of the solenoid valve device and power supply to the solenoid valve 7 are easy.

In addition, the electrical/electronic parts necessary for the operation of the solenoid valve 2
By providing 0 on the base 1 side of the extension 16 of the printed wiring board 6 instead of providing it in the valve body or electromagnetic part of the solenoid valve, they are located in the surplus space below the solenoid valve 7. , the solenoid valve device as a whole is miniaturized.

Furthermore, since power is supplied to the electrical/electronic components 20 by the printed wiring board 6, there is no wiring error, unlike connection using conductive wires, and the number of man-hours for wiring connection and inspection can be reduced.

When the printed wiring board 6 in the above electromagnetic valve device is connected to a power source, a control current from the electrical/electronic components 20 and the printed wiring circuit is applied to the electromagnetic valve 7 via the power supply terminal 19 and the power receiving terminal 15. As a result, the solenoid valve 7 repeats a predetermined operation, causing the pressure fluid from the input port 2 to flow out from the first output port 3a or the second output port 3b, and at the same time causing the pressure fluid to flow out from the first output port 3a or the second output port 3b. The fluid from the port 3b is discharged to the first discharge port 4a or the second discharge port 4b.

In addition, the above-mentioned printed wiring board 6 can be used if necessary.
As shown by the chain lines in FIG. 1 or 2, an extension 21 is also formed on the end plate 11 side, and the necessary circuits are printed and wired on the extension 21, and various electrical - Electronic components 20 can be attached.

In the embodiment described above, the base 1 and the valve body 8
is made of metal or synthetic resin; however, if one or both of the base 1 and the valve body 8 are made of metal, the seal members 5a and 5b interposed between the printed wiring board 6 and these may be This improves the electrical insulation of the printed wiring board 6 with respect to the base 1 or the valve body 8 as well as the sealing effect. Furthermore, if necessary, the printed wiring board 6 can be coated with an insulating agent in advance.

Note that the printed wiring board 6 may be attached to the base 1 or the electromagnetic valve 7 in advance via a sealing member, or may be attached to the base 1 together with the electromagnetic valve 7.

Although the solenoid valve of the above embodiment is a 5-port valve, it goes without saying that the solenoid valve of the present invention is not limited to the 5-port valve of the above embodiment.

[Effect of the invention] In the electromagnetic valve device with a printed wiring board of the invention having the above configuration, a printed wiring board having an extension extending from the base in the length direction of the electromagnetic valve is provided between the base and the electromagnetic valve. The electrical circuit and electric/electronic parts necessary for the solenoid valve are installed by using the surplus space around the solenoid valve on the base side of the printed wiring board, without providing them in the valve body or the solenoid part of the solenoid valve. Therefore, the solenoid valve and the entire solenoid valve device including the same can be made smaller.

Moreover, the printed wiring board is sandwiched between the base and the solenoid valve by forming an opening that communicates the base with the solenoid valve, and the printed wiring board is configured to supply power to the solenoid valve through the printed wiring board. This not only makes it possible to maintain the strength of the printed wiring board itself compared to the case where the printed wiring board is installed separately, but also allows wiring to be completed at the same time as installing the solenoid valve to the printed wiring board. , there is no need to connect conductors, etc. to supply power to the electromagnetic part, the structure for power supply is simple and there is no miswiring, and the man-hours for assembling, maintaining and inspecting the solenoid valve are greatly reduced. The cost of the valve can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional side view of an embodiment of the present invention, and FIG. 2 is a perspective view thereof. DESCRIPTION OF SYMBOLS 1... Base, 6... Printed wiring board, 7... Solenoid valve, 16... Extension part, 20... Electrical/electronic parts.

Claims (1)

[Scope of utility model registration request] A solenoid valve device is a solenoid valve device in which a solenoid valve having a pilot valve protruding from one side of the base is mounted on a base in which a plurality of fluid passages are formed, via a printed wiring board, the solenoid valve having a solenoid part on the pilot valve. a power receiving terminal is formed in a protruding manner, and the printed wiring board is provided with an opening that communicates each of the plurality of fluid passages of the base with each opening of the solenoid valve, and extends from the base toward the pilot valve. Along with providing an extension,
The electrical circuit necessary for the operation of the solenoid valve is printed and wired, and the extension part of the printed wiring board has a power supply terminal into which the power receiving terminal of the pilot valve is inserted and a connection part to the power supply. A solenoid valve device with a printed wiring board, characterized in that necessary electrical and electronic components are provided on the base side surface, each electrically connected to the printed wiring circuit.