JP2589616Y2 - Power supply device for double solenoid type solenoid valve - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply device for a double solenoid type solenoid valve.

[0002]

2. Description of the Related Art A valve body having a plurality of ports and a valve hole through which these ports are opened, and a main valve body slidably inserted into the valve hole, are provided at both ends of the main valve body. A main valve for driving a main valve body by operating pilot fluid pressure to switch a fluid flow direction between a plurality of ports, and one end in an axial direction thereof
A solenoid valve for supplying and discharging a pilot fluid to and from the end of the main valve body by energizing and releasing the two solenoids disposed in a stack on the side; and a wiring board for supplying power to the solenoid. Double solenoid type solenoid valves are already known without particular examples. In this double solenoid type solenoid valve, a plurality of power receiving terminals provided on the two solenoids and a plurality of sockets provided on the wiring board are connected by soldering or the like. However, the connection between the socket and the power receiving terminal by soldering is
At the same time as complicating the assembly work of the pilot solenoid valve,
If one of the two solenoids is damaged,
It is uneconomical to replace them all,
The replacement work is also troublesome.

[0003]

[Problems to be solved by the present invention] Problems to be solved by the present invention are assembling work and replacement work of the pilot solenoid valve.
An object of the present invention is to provide a power supply device for a double solenoid type solenoid valve which can replace only a damaged solenoid while simplifying the operation.

[0004]

In order to solve the above-mentioned problems, a power supply device for a double solenoid type solenoid valve according to the present invention comprises:
A pilot body having a plurality of ports, a valve body having a valve hole in which these ports are opened, and a main valve body slidably inserted in the valve hole, and a pilot fluid pressure acting on both ends of the main valve body; A main valve that drives the main valve body to switch the flow direction of the fluid between the plurality of ports, and energizes and releases two solenoids that are stacked and disposed on one axial end of the main valve. In a double solenoid type solenoid valve including a pilot solenoid valve for supplying and discharging a pilot fluid to an end of the main valve body and a wiring board for supplying power to the solenoid, the two solenoids have the same configuration and outer shape. And each of them
Along with being detachably attached , each includes a plurality of power receiving terminals protruding substantially parallel to the axial direction, the wiring board,
A plurality of sockets to which the power receiving terminals are fitted and electrically connected by being mounted on these solenoids are connected to the wiring board itself.
It is characterized in that it comprises a.

[0005]

[Function] To a plurality of power receiving terminals provided in two solenoids ,
When a plurality of sockets provided on the wiring board itself are fitted, each socket and each power receiving terminal are electrically connected to each other, and the wiring board is mounted on the ends of the two solenoids.
Thus, the assembling work is significantly simplified. In this case, the wiring board and the solenoid are electrically connected by fitting the power receiving terminal provided on them and the socket, and two solenoids are detachable.
Capability allows them to be separated from each other, so that only damaged solenoids can be replaced
The work is also easy. Also, have the same configuration and outer shape
Since two solenoids are used, one type of solenoid
Only need to be manufactured, a set of two assembled solenoids
It is also possible to change the standing position.

[0006]

FIG. 1 shows an embodiment of the present invention. This double solenoid type solenoid valve comprises a main valve 1, a pilot solenoid valve 2 having two solenoids for supplying and discharging pilot fluid to and from the main valve. And a wiring board 3 for supplying power to the solenoid. The main valve 1 has an input port P of the pressurized fluid, output ports A, B, exhaust ports EA, a valve body 4 having an axial valve hole 4a of EB and their ports are opened, attached to the axial end Piston storage boxes 5,5, pistons 6,6 slidably inserted into these piston storage boxes, and a main valve body 7 slidably inserted into the valve hole 4a. When pressed by one piston 6, the valve body 7 communicates the flow paths between the ports P and A and between the ports B and EB , and when pressed by the other piston 6 , the ports P and B and the port The flow path between A and EA is configured to communicate (see FIG. 1).

[0007] The pilot solenoid valve 2 has two solenoids 9, 9 having the same configuration and outer shape and stacked vertically.
A pilot valve body 11 having pilot valve portions 10 and 10 and a terminal block 12 are provided. The above solenoid 9
Has a coil 13, a fixed iron core 14, a movable iron core 15, a magnetic frame 16 surrounding them, and the like. The periphery of the magnetic frame 16 is configured as a well-known solenoid molded with an insulating sealing material. Are formed on the opposite surfaces thereof with an axial fitting portion 18 having a fitting projection 18a and a fitting recess 18b to be fitted with each other, and a mounting hole 19 is formed on a surface orthogonal to this. Both the tip of the projection 18a and the bottom of the fitting recess 18b are slightly enlarged in diameter. Therefore, the solenoids 9, 9 are connected so as to be movable only in the axial direction (fitting direction) by mutual fitting of the fitting portions 18, 18. Further, the solenoid 9 is provided with the insertion hole 12 of the terminal block 12.
are provided with power receiving terminals 20 projecting from the terminal block 12 in a substantially parallel manner.

The pilot valve body 11 has a pilot valve portion 10, which is individually opened and closed by solenoids 9, 9.
10, a common pilot input path 21 and a common pilot discharge path 22. The pilot valve section 10 includes:
A supply valve seat communicating with the pilot common input passage 21, a discharge valve seat communicating with the pilot common discharge passage 22, a supply valve body 25 and a discharge valve body 26 that open and close these valve seats, and the valve bodies 25 and 2.
The valve chamber 27 and the pilot chamber 28 in which 6 moves, and the chambers 27 and 2
8 and a push rod (both not shown) provided in the flow passage for integrally moving the valve bodies 25 and 26. When the solenoid 9 is energized, the supply valve body 25 is supplied. When the valve seat is opened and the discharge valve body 26 closes the discharge valve seat, and the power supply to the solenoid 9 is released, the supply valve body 25 closes the supply valve seat and the discharge valve body 2.
6 is configured as a well-known pilot valve part which closes the discharge valve seat. The pilot common input path 21 and the pilot common discharge path 22 are connected to the pilot supply flow path 30.
And the pilot discharge passage 31 communicates with the input port P and the pilot discharge port R.
Reference numeral 8 communicates with the piston storage boxes 5 and 5 through pilot output flow paths 32 and 32, respectively.

[0009] The wiring board 3, the power receiving terminal 20 of the solenoid 9, 9 the plate itself, the socket 35 ... are fitted,
And electric and electronic components 36, such as an indicator lamp and a back electromotive force preventive device, necessary for powering the solenoid, and these terminals, sockets and components are provided by wiring printed on the wiring board 3. It is electrically connected. And
The wiring board 3 includes sockets 35,.
The power supply terminals 38 of the terminal box 37 are fitted into the power receiving portions of the wiring board 3 by being fitted to one side surface of the stacked solenoids 9. Reference numeral 41 in the figure denotes a terminal block cover, and reference numeral 42 denotes a manual operation unit for manually supplying and discharging pilot fluid to and from the piston storage boxes 5 and 5.

The above embodiment, which is shown in a disassembled state in FIG.
The main valve 1 is formed by assembling the valve body 4 and the piston storage boxes 5 and 5 by appropriate means such as mounting screws, and the pilot valve body 11 is mounted on one side of the piston storage box 5 by the mounting screws 39 and 39. Next, the terminal block 12 and the solenoids 9, 9 integrally connected by the fitting of the fitting portions 18, 18 are connected to the mounting holes 12b, 12b and 1 provided in these.
When the pilot valve body 11 is mounted on the pilot valve body 11 by the mounting bolts 40 passing through 9 and 19, the main valve 1 and the pilot solenoid valve 2 are integrally connected. In addition, the power supply terminal 3 to the power receiving unit
The wiring board 3 and the terminal box 37 are integrally mounted on the terminal block cover 41 by the fitting of 8, and the sockets 35 of the wiring board 3 are connected to the power receiving terminals 20 of the solenoids 9, 9. And the engaging claws 12c of the terminal block 12,.
Are engaged with the windows 41a of the terminal block cover 41,
A power supply device is assembled to the solenoid valve.

When one of the solenoids 9 is damaged for some reason, the damaged solenoid 9 is moved in the axial direction and the solenoid 9 is separated from the wiring board 3 and the other solenoids 9. Can be replaced. Therefore, maintenance is economical. The two solenoids have the same configuration and outer shape
Only one type of solenoid needs to be manufactured.
Also, it is possible to change the assembly position of the two assembled solenoids
It will work. In addition, the solenoid valve is required
In many cases, the electronic components are different, but by preparing a plurality of types of wiring boards on which electric and electronic components according to the model are mounted in advance, even if the model differs, it can be assembled by the same operation, Automatic assembly is advantageous. The operations of the pilot solenoid valve 2 and the main valve 1 by energizing and releasing the solenoids 9 and 9 are the same as those of a known double solenoid type solenoid valve, and a detailed description thereof will be omitted.

[0012]

According to the present invention, a plurality of power receiving terminals provided on two solenoids are fitted to a plurality of sockets provided on a wiring board so as to supply power to these solenoids which are separably connected. Because the pilot solenoid valve
This facilitates the assembling work and the replacing work, and when one of the solenoids is damaged, only the damaged solenoid can be replaced. Therefore, they have the same configuration and outer shape.
Since two solenoids are used, one type of solenoid
Solenoid, coupled with the fact that only the
It is economical to assemble and maintain the hardware.

[Brief description of the drawings]

FIG. 1 is a vertical sectional front view of an embodiment.

FIG. 2 is an exploded perspective view of the same.

FIG. 3 is a perspective view showing a connection mode of a solenoid.

[Explanation of symbols]

 1 Main Valve 2 Pilot Solenoid Valve 3 Wiring Board 4 Valve Body 4a Valve Hole 7 Main Valve 9 Solenoid 20 Power Receiving Terminal 35 Socket P, A, B, EA, EB Port

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Keisuke Shimauchi 4-2-2 Kinudai, Yawahara-mura, Tsukuba-gun, Ibaraki Pref. SMC Corporation Tsukuba Technology Center (72) Inventor Chikazu Yoshimura Ibaraki-gun Yawawara Village Kinnodai 4-2-2 SMC Corporation Tsukuba Technical Center (56) References JP-A-4-60287 (JP, A) Fully open Sho 61-97887 (JP, U) Really open Sho 58-169683 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) F16K 31/06 305 H01R 23/02

Claims (1)

(57) [Scope of request for utility model registration] 1. A plurality of ports and these ports are open
A valve body valve hole is opened, and has a slidably inserted main valve body in the valve hole, a plurality of driving the main valve body by the pilot fluid pressure acting on both ends of the main valve body a main valve for switching the flow direction of the fluid between the ports, one axial of the main valve
A pilot solenoid valve that supplies and discharges pilot fluid to and from the end of the main valve body by energizing and releasing two solenoids that are stacked and disposed on the end side , and a wiring board that supplies power to the solenoid In the double solenoid type solenoid valve, the two solenoids have the same configuration and outer shape.
A plurality of power receiving terminals , each of which is detachably attached, and each of which protrudes substantially in parallel with the axial direction, wherein the wiring board is electrically connected to the solenoid by mounting the power receiving terminals. A power supply device for a double solenoid type solenoid valve, wherein a plurality of sockets to be connected are provided on the wiring board itself .