JPH0564587U - Power supply device for pilot type solenoid valve - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a power supply device for a pilot type solenoid valve capable of supplying power by assembly. [Structure] A power feeding relay box 4 provided between a main valve 2 and a pilot solenoid valve 3, a power feeding relay terminal 37 on a power source side, a pilot valve power feeding terminal 38, and a wiring board 3 connecting these terminals.
9 and a passage 36 for connecting each port of the pilot solenoid valve to the input port of the main valve, the pilot chamber, and the discharge port.
p, 36a, 36r are provided, and the pilot solenoid valve 3 is provided with the pilot valve terminal 27 connected to the pilot valve power supply terminal 38. [Effect] By assembly, power can be supplied to the pilot solenoid valve and pilot fluid can be supplied to the main valve.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a power supply device for a pilot type solenoid valve.

[0002]

[Prior Art]

 A solenoid valve assembly in which a pilot type solenoid valve is installed in each of a plurality of manifold blocks arranged in series is already known, without any particular exemplification. The power supply to the pilot type solenoid valve in this electromagnetic valve assembly is performed by connecting the terminals on the power source side attached to each manifold block and the pilot solenoid valve as disclosed in, for example, Japanese Utility Model Laid-Open No. 2-43577. This is done by connecting the pilot valve terminal with a lead wire. However, the power supply to the above-mentioned known pilot type solenoid valve is troublesome because it is necessary to electrically connect the terminals with lead wires at the installation site of the solenoid valve assembly, and particularly in recent years equipment If the pilot type solenoid valve becomes smaller due to the trend toward smaller size, the space around the installation location of the solenoid valve assembly will be small, and the work of connecting the lead wires at the installation location will be even more troublesome.

[0003]

[Problems to be solved by the device]

 The problem to be solved by the present invention is to provide a power supply device for a pilot-type solenoid valve capable of supplying power when assembled.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention provides a single pilot type solenoid valve having a main valve and a pilot solenoid valve mounted at one longitudinal end of the main valve. The power supply relay box installed between the power supply relay terminal and the terminal on the power supply side, the pilot valve power supply terminal, the wiring board that electrically connects these terminals, and the pilot input of the pilot solenoid valve. Port, pilot output port, and pilot discharge port are individually connected to the input port of the main valve, pilot chamber and discharge port, and the pilot solenoid valve is installed as a pilot in the power feeding relay terminal box. It is characterized by having a pilot valve terminal electrically connected to the valve power supply terminal. Further, in order to solve the same problem, in a double pilot type solenoid valve having a main valve and first and second pilot solenoid valves assembled at both ends of the main valve in the longitudinal direction, The first power feeding relay box provided between the first pilot solenoid valve and the power feeding terminal connected to the power supply side terminal, the pilot valve power feeding terminal, the double solenoid terminal, and these terminals are electrically connected. Wiring board and a pilot flow path for connecting the pilot input port, pilot output port and pilot discharge port of the first pilot solenoid valve to the input port of the main valve, the first pilot chamber and the discharge port individually. The second power feeding relay box provided between the valve and the second pilot solenoid valve includes a pilot valve power feeding terminal, a double solenoid terminal, and a wiring board electrically connecting these terminals. The pilot input port of the second pilot solenoid valve, the pilot output port, and the pilot discharge port are provided with the pilot flow passage that individually communicates with the input port of the main valve, the second pilot chamber, and the discharge port. The solenoid valve includes pilot valve terminals that are electrically connected to pilot valve power supply terminals of the first and second power supply relay boxes by being mounted on the first and second power supply relay boxes, respectively. The double solenoid terminal of the power supply relay box is connected by a lead wire.

[0005]

[Action]

 When the pilot solenoid valve and the power feeding relay box are assembled to one end of the main valve, the pilot valve terminal is electrically connected to the power feeding relay terminal by the pilot valve power feeding terminal and the wiring board, and each pilot port of the pilot solenoid valve is connected. The pilot flow path provided in the power supply relay box communicates with the corresponding port of the main valve and the pilot chamber. When the first and second pilot solenoid valves and the first and second power feeding relay boxes are attached to both ends of the main valve and the double solenoid terminals of these power feeding relay boxes are connected by lead wires, The second pilot solenoid valve is electrically connected to the power feeding relay terminal of the first power feeding relay box, and the pilot port of each pilot solenoid valve corresponds to the main valve by the pilot flow passage of each power feeding relay box. Connect to the port and pilot room. Therefore, by assembling the pilot solenoid valve and the power feed relay box to the main valve, it is possible to feed power to the pilot solenoid valve and supply / discharge the pilot fluid to / from the main valve.

In this case, the assembly of the pilot solenoid valve and the power feeding relay box to the main valve, and the connection of the double solenoid terminals with the lead wires can be performed in a wide area unrelated to the installation location of the pilot type solenoid valve. Even if the pilot type solenoid valve is small, the work is easy.

[0007]

【Example】

 1 to 4 show a first embodiment of the present invention, in which a pilot type solenoid valve 1 configured as a single pilot type is a main valve 2, a pilot solenoid valve 3, and a relay of power supply between valves 2 and 3. Like the double pilot type solenoid valve to be described later, the box 4 and the manifold 4 are installed along the rail 5 in a desired number in series (see FIG. 5).

The main valve 2 includes a main valve body 11, a piston box 12 on the side of the power feeding relay box 4 and an end plate 13 on the opposite side. The piston box 12 and the end plate 13 have gaskets 14 and 14 respectively. , And is attached to the main valve body 11 with set screws 15 ,. The main valve body 11 has an input port, an output port, and a discharge port (none of which is shown) for the pressure fluid, and an axial valve hole 16 in which these ports open. As a known three-port valve or five-port valve in which one or two output ports are switched to communicate with each other by a valve element 18 of a valve rod 17 that slides in 16 ... It is configured. The piston box 12 has a pilot chamber in which the piston 20 slides, a pilot port 21 for supplying a pilot fluid to the pilot chamber, and a pilot input port and a pilot discharge port, which will be described later, of the pilot solenoid valve 3, and a main valve body. 11 are provided with flow passages 22p and 22r communicating with the supply port and the discharge port of 11 and a manual operation part 23 that slides the piston 20 by pressing. It is slidable and cannot be pulled out.

The pilot solenoid valve 3 includes a pilot input port 3p, a pilot output port 3a, and a pilot discharge port 3r. By exciting the solenoid 26 and deenergizing the pilot output port 3a, the pilot output port 3a and the pilot discharge port 3p are discharged. It is configured as a well-known 3-port solenoid valve that communicates by switching to the port 3r, and the pilot valve terminal 27, ... Attached to the power feeding relay box 4 side of the pilot solenoid valve 3 is a coil terminal 28 ,. The coil 26a of the solenoid 26 is electrically connected to the electric / electronic components 30, ..., Which are required to energize the solenoid 26 installed on the substrate 29 (see FIG. 3).

The power feeding relay box 4 includes a box body 32, a relay terminal storage box 33 attached to a lower surface of the box body 32 (a surface on the manifold block 6 side), and a female terminal storage box attached to the box body 32. Axial pilot flow passages 36p and 36a for individually communicating the box 34, the pilot input port 3p and the flow passage 22p, the pilot output port 3a and the pilot port 21, and the pilot discharge port 3r and the flow passage 22r. And 36r. .. are mounted on the relay terminal storage box 33, and pilot valve power supply terminals 38, .. are mounted on the female terminal storage box 34. These terminals 37 ,. , Are electrically connected by a wiring board 39, and terminals 40, 40 for double solenoids are attached to the wiring board 39. When the pilot type solenoid valve 1 is installed on the manifold block 6, the power feeding relay terminals 37, ... Are electrically connected to a power supply side terminal (not shown) attached to the manifold block 6, The pilot valve power supply terminals 38, ... Are electrically connected to the pilot valve terminals 27, ... When the pilot valve 3 and the power supply relay box 4 are assembled to the main valve 2 by the set screws 42, 42. Is related.

The manifold block 6 is provided with a pressure fluid supply channel 46 and a pressure fluid outlet channel 47 that communicate with each other, and a pressure fluid outlet port (not shown) formed on a surface orthogonal to these channels. ) And these flow paths and openings are configured as a well-known manifold block that communicates with each port of the solenoid valve 1 individually by the opening formed in the installation surface 6a of the pilot type solenoid valve 1. A mounting portion 49 for the female terminal (not shown) on the power source side is integrally formed on the surface of the output port facing the opening. Further, the manifold block 6 can be attached and detached by the operation tool 50, but since the attachment and detachment of the manifold block has nothing to do with the configuration which is the gist of the present invention, detailed description thereof will be omitted.

Next, the assembly of the pilot solenoid valve 1 in the first embodiment will be described with reference to FIG. The piston box 12 with the piston 20 and the manual operation part 23 and the like, and the end plate 13 are attached to both ends of the main valve body 11 in which the valve rod 17 is inserted into the valve hole 16, and the gaskets 14 and 14 are provided. The main valve 2 is constructed by assembling with the set screws 15 ,. On the other hand, in the box body 32, a relay terminal storage box 33 having supply relay terminals 37, ..., A female terminal storage box 34 in which pilot valve power supply terminals 38, ... Are mounted, a wiring board 39, and a double solenoid terminal 40. , 40, and these terminals are electrically connected by the wiring board 39, whereby the power feeding relay box 4 is assembled.

Next, when the pilot solenoid valve 3 and the power feeding relay box 4 are assembled to the piston box 12 of the main valve 2 with the set screws 42, 42 via the gaskets 43, 43, the pilot valve terminals 27, .. and the pilot valve power supply terminals 38, ... Are electrically connected, and the pilot solenoid valve ports 3p, 3r, 3a are connected to the piston flow passages 36p, 36r, 36a of the power supply relay box 4 by the pistons The flow paths 22p and 22r of the box 12 and the pilot port 21 are individually connected. Therefore, by assembling the pilot solenoid valve 3 and the power feed relay box 4 to the main valve 2, power is fed to the pilot solenoid valve 3 by the power feed relay terminals 37, ... And pilot fluid to the main valve 2 is fed. Supply and discharge are possible. Since the main solenoid valve 2 can be assembled in a wide area unrelated to the installation location of the pilot solenoid valve 1, even if the pilot solenoid valve 1 is small, the assembly work is easy. Further, when the pilot type electromagnetic valve 1 is installed in the manifold block 6, the supply relay terminals 37, ... Are connected to the power supply side terminals (not shown).

6 to 9 show a second embodiment of the present invention, in which a pilot type solenoid valve 51 configured as a double pilot type includes a main valve 52 and first and second pilot solenoid valves 3A and 3B. And the first and second power feeding relay boxes 4A and 4B between these valves. The main valve 52 comprises a main valve body 53 having a pressure fluid supply port, two output ports and a discharge port, and two pilot chambers (all not shown), and piston boxes 12A, 12B on both sides thereof. It is configured as a well-known 4-port valve or 5-port valve that connects and disconnects two output ports to a supply port and a discharge port by supplying / discharging pilot fluid to / from a pilot chamber. 12A and 12B have the same structure as the piston box 12.

The power feeding box 4A has the same configuration as the power feeding relay box 4 described above, and the power feeding relay box 4B is the same as the power feeding relay box 4A except that the relay terminal storage box 33 and the power feeding relay terminal 37 are omitted. It has a configuration. Further, lead wires 56, ... Having double solenoid female terminals 55, 55 on both sides are installed on the main valve body 53, and each female terminal 55 has a through hole 25 formed in the piston boxes 12A, 12B. , Are electrically connected to the double solenoid terminal 40, and the lead wires 56, ... Are covered by a protective cover 57. The other structure of the second embodiment is the same as that of the first embodiment, and the operation thereof is the same as that of the known double solenoid valve, and therefore the detailed description will be omitted.

[0016]

[Effect of the device]

 The present invention is not only capable of supplying power to the pilot solenoid valve and supplying / discharging pilot fluid to / from the main valve by assembling the pilot solenoid valve and the power feeding relay box to the main valve, but it is also possible to use a double lead wire. Since power can be supplied to the pilot type solenoid valve, power supply to the pilot type solenoid valve and supply / discharge of pilot fluid are easy. In addition, since these parts can be assembled and connected in a wide area unrelated to the installation location of the pilot solenoid valve, the work is easy. In addition, existing main and pilot valves can be used.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a first embodiment.

FIG. 2 is a perspective view of an assembled state.

FIG. 3 is a vertical sectional view of a main part.

FIG. 4 is a cross-sectional view of a main part.

FIG. 5 is a perspective view showing an installation mode of a manifold block.

FIG. 6 is an exploded perspective view of the second embodiment.

FIG. 7 is a perspective view of an assembled state.

FIG. 8 is a vertical sectional side view of a main part.

FIG. 9 is a cross-sectional plan view of essential parts.

[Explanation of symbols]

 1,51 Pilot type solenoid valve 2,52 Main valve 3,3A, 3B Pilot solenoid valve 4,4A, 4B Power feeding relay box 27 Pilot valve terminal 36p, 36a, 36r Pilot flow path 37 Power feeding relay terminal 38 Pilot valve power feeding terminal 39 Wiring board 40 Terminal for double solenoid 56 Lead wire

Claims (2)

[Scope of utility model registration request] 1. A single pilot type solenoid valve having a main valve and a pilot solenoid valve assembled at one longitudinal end of the main valve, wherein a power feed relay provided between the main valve and the pilot solenoid valve. The box has a power supply relay terminal that is connected to the power supply side terminal, a pilot valve power supply terminal, a wiring board that electrically connects these terminals, a pilot input port, pilot output port, and pilot discharge port of the pilot solenoid valve. Of the main valve, and a pilot flow path for individually communicating with the pilot chamber and the discharge port of the main valve.The pilot solenoid valve is electrically connected to the pilot valve power supply terminal by being assembled to the power supply relay terminal box. The single pilot type solenoid valve power supply device is characterized in that it is equipped with a pilot valve terminal. 2. A double pilot type solenoid valve having a main valve and first and second pilot solenoid valves assembled at both ends in the longitudinal direction of the main valve, wherein the main valve and the first pilot solenoid valve are provided. A first power feeding relay box provided between the power feeding side terminal, a pilot valve power feeding terminal, a double solenoid terminal, and a wiring board electrically connecting these terminals; 1 Pilot solenoid valve's pilot input port, pilot output port and pilot discharge port are the main valve's input port,
A second feed relay box provided between the main valve and the second pilot solenoid valve, the pilot valve having a pilot channel and a pilot flow path communicating with the discharge port individually, and a pilot valve feed terminal, a double solenoid terminal, A wiring board that electrically connects these terminals, and a pilot that allows the pilot input port, pilot output port, and pilot discharge port of the second pilot solenoid valve to individually communicate with the main valve input port, second pilot chamber, and discharge port. And a flow path, wherein the first and second pilot solenoid valves are electrically connected to the pilot valve power supply terminals of the first and second power supply relay boxes by being assembled to the first and second power supply relay boxes. A double-pyro characterized by including valve terminals, and the double solenoid terminals of the first and second power feeding relay boxes are connected by lead wires. Power supply device for solenoid valve.