JP3021802B2 - 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 solenoid valve, and more particularly, to a power supply and a control signal transmitted to a solenoid constituting a solenoid valve by laminating a conductive elastic body and a non-conductive elastic body. The invention relates to a solenoid valve configured to supply.

[0002]

2. Description of the Related Art When a power supply and a control signal are supplied to a solenoid valve body, a method of directly fitting a male connector of a solenoid of the solenoid valve body to a female connector constituting a connection portion to electrically connect the solenoid connector, or A method is employed in which a board having male and female connectors is provided between the solenoid and the connection member, and a wiring conductor is soldered to the board.

[0003]

However, in the former method according to the prior art, since the male and female connectors are used for connecting the solenoid valve body and the electric wiring, sufficient positional accuracy is required when manufacturing the solenoid valve. Need to be secured. For this reason,
In order to reduce the size of solenoid valves, high assembly accuracy is required.
There arises a problem that productivity is reduced and cost is increased. Further, since the connectors need to be separated from each other by a predetermined distance, miniaturization becomes difficult. On the other hand, in the latter method,
A complicated process such as soldering is required, and the production efficiency is not so improved.

The present invention has been made to solve such a problem, and an object of the present invention is to provide a solenoid valve which is simple to manufacture and easy to miniaturize.

[0005]

To SUMMARY OF THE INVENTION To achieve the above object, the present invention includes a solenoid valve body, and an electrical wire connecting member for connecting the solenoid valve body and external electrical wiring, the electrical The wiring connection member includes a plurality of conductive elastic bodies,
A non-conductive elastic body interposed between each conductive elastic body and
The a, the conductive elastic body, and performs a contact electrically connected to both of said wiring portions connected to the solenoid incorporated in the solenoid valve body and the electrical wiring.

[0006]

In the solenoid valve according to the present invention, a conductive elastic body is used for a connection portion between the solenoid valve body and the electric wiring, and electrical connection is made by utilizing the elasticity. Since the requirement for positional accuracy in the process is small and the conductive elastic body can be miniaturized, miniaturization of the entire solenoid valve can be easily achieved.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a solenoid valve according to the present invention.

First, in FIG. 1, an electromagnetic valve 10 basically includes an electromagnetic valve body 12 having a built-in solenoid, a substrate 14 having an electric circuit, and a connection member 18 to which an electric wiring conductor 16 is soldered. , And the solenoid valve body 12,
It is composed of electric connection members 20 and 22 for electrically connecting the substrate 14 and the connection member 18.

On the upper surface of the solenoid valve main body 12, two convex electrodes 24, 24 protruding upward in the figure are formed, and rectangular holes 26, 26 are provided outside thereof. The board case 28 itself is mounted on the solenoid valve body 12 by inserting the claws 30 provided on the base 28 into the holes 26. The board case 2
8, a through hole 32 for insertion of the electric connection member 20 is defined, and two fitting holes 34, 34 of the claw 20 are defined.

[0010] As shown in FIG.
Plate-shaped conductive elastic bodies 35 and non-conductive elastic bodies 36 are alternately laminated, and non-conductive elastic bodies 36a, 36a are provided at both ends thereof.
Are arranged, and non-conductive elastic bodies 36b, 36b (two-dot chain line portions) are also attached to the side surfaces thereof. Therefore, the surface where the conductive elastic body 35 is exposed is the electrical connection surface. As shown in FIG. 1, the electric connection member 22 does not have a non-conductive elastic body corresponding to the non-conductive elastic body 36b on one side surface, but the other parts are substantially the same as the electric connection member 20. Is the same as

After the electrical connection member 20 is inserted into the through hole 32 in the board case 28, the board 14 is placed. The substrate 14 has two convex electrodes 37 protruding from both surfaces thereof (upper surface and lower surface in FIG. 1), and includes a light emitting diode (LED) 38, a surge killer 40, and the like. A see-through lamp cover 42 is mounted on the board case 28 so as to cover the board 14, and the presence or absence of energization of the electromagnetic valve body 12 can be visually recognized from the outside by turning on the light-emitting diodes 38.

A connector guide 48 having a rectangular through hole 44 and a concave portion 46 formed in the lower portion of the side surface is provided with claws 50 and 50 on the substrate case 1 on the upper side of the substrate 14 on the side of the convex electrodes 37 and 37.
4 is inserted into the holes 34, 34 to be mounted.
The connector guide 48 allows the convex electrode 3 on the substrate 14 to be formed.
7, 37, the electrical connection member 20, and the protruding electrodes 24, 24 of the solenoid valve body 12 come into contact with a predetermined pressing force.

After the electric connection member 22 is inserted into the through hole 44, the connection member 18 to which the conductor 16 is soldered is placed so as to contact the electric connection member 22.

At the top of the connecting member 18, a claw 52 is provided at the tip.
The lid member 56 provided with the swing hook 54 having the
2 is fitted in the concave portion 46 of the connector guide 48 and mounted. In this case, a hole corresponding to the outer shape of the connection member 18 is provided on the lower surface of the lid member 56, and the connection member 18 is connected to the conductor 1.
6 together with the electrical connection member 22.
Are inserted, and the lid member 56, the connecting member 18,
The male connector may be formed by integrating the conductor 16 and the electric connection member 22. For this reason, the convex electrode 37 of the substrate 14,
37, the electrical connection member 22, and the connection member 18 are brought into contact with each other at a predetermined pressure, and an electrical connection is made.

The solenoid valve 10 thus configured is
Power and a control signal are supplied from the conductor 16 to the solenoid valve body 12 via the substrate 14 via the conductive elastic body 35 of the electric connection members 22 and 20.

The electromagnetic valve 10 has a structure in which the electrically conductive elastic members of the electric connection members 20 and 22 are connected to the electromagnetic valve main body 12 and the convex electrode 2 of the substrate 14.
4, 24, 37, 37 and the connecting member 18 can be electrically connected only by bringing them into contact with each other. Therefore, strict positional accuracy is not required as in the case of using male and female connectors, and the manufacturing process is simplified. Further, since the thickness of the electric connection members 20 and 22 can be reduced, miniaturization can be easily achieved. When the substrate 14 is not used,
The claw 5 of the connector guide 48 is inserted into the hole 26 of the solenoid valve body 12.
0 can be inserted for electrical connection.

When the conductor 16 is further connected in the horizontal direction, a connector guide 62 having a concave portion 60 opened to two sides perpendicular to each other is used instead of the connector guide 48. (See FIG. 4). In this case, a hole 64 for the claw 52 of the swing hook 54 that forms the lid member 56 is formed on the upper surface of the connector guide 62. Further, a pair of claws 66, 66 are provided at a lower portion. The electric connection member 22 is inserted into the concave portion 60 of the connector guide 62 with one side on which the non-conductive elastic body is mounted facing upward. The electrical connection member 22 has substantially the same shape as the electrical connection member 20 but has a non-conductive member only on one side, so that there are three electrically connectable surfaces. Are electrically connectable in two directions orthogonal to each other. As shown in FIG. 5, the electrically connecting members connectable in three directions include a conductive elastic body 70 and a non-conductive elastic body 7 on a non-conductive elastic body core 68.
It is also possible to use an electrical connection member 73 to which the windings 2 are wound alternately. Further, as shown in FIG. 6, a flexible substrate 74 can be used instead of the substrate 14. This flexible substrate 74 has an advantage that it can be folded down into two parts and the size can be reduced like the substrate case 28a and the lamp cover 42a.

Next, FIG. 7 shows a second embodiment in which the connector is attached to and detached from the contact surfaces orthogonal to the conductive elastic body. In this case, the same components as those of the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

The solenoid valve 76 has a built-in electrical connection member 80 made of a conductive elastic body and a non-conductive elastic body electrically connected to a solenoid of a solenoid valve main body 78, and a part of the solenoid valve main body 78. It is exposed on the upper surface. A bulging portion 82 is provided on the upper surface of the solenoid valve main body 78, and grooves 84, 84 are formed at side ends so as to sandwich the electric connection member 80.

Then, after the connecting member 18 is placed so as to contact the exposed portion of the electric connecting member 80, the lid member 86
Guides 88, 88 provided at the side ends of the solenoid valve body 7
8, and the pawl 52 of the swing hook 54 is engaged with the bulging portion 82 and fixed. The lid member 86
The connection member 18 may be housed and fixed to the lower surface of the device.

In this embodiment, as in the first embodiment, manufacture is easy, and since most of the electric connection member 80 is housed inside the solenoid valve body 78, the size can be further reduced.

Since the attachment / detachment of the cover member 86 is made perpendicular to the contact surface of the conductive elastic body, the insertion position accuracy is not so required.
Even if is pulled, the contact surface of the conductive elastic body does not separate, and the reliability of the contact portion can be improved.

Next, FIG. 8 shows a third embodiment of a solenoid valve which can be electrically connected in three directions via a conductive elastic body. In this case, the same components as those of the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

A protruding portion 122 having a U-shape is formed on the upper portion of the electromagnetic valve body 118 to form a concave portion 120. The bottom of the recess 120 has an electrode 124 electrically connected to the solenoid of the solenoid valve, while the side face of the solenoid valve body 18 has a groove 125 formed therein. The recess 12
Numeral 0 is for inserting a rectangular parallelepiped electrical connection member 126 in which conductive elastic bodies and non-conductive elastic bodies are alternately laminated. The electric connection member 126 is made of a non-conductive elastic body 126.
Since a and 126b are provided only on the side surfaces in two directions, electrical connection is possible on the remaining four surfaces, that is, in any of the X and Y directions.

The connecting member 128 accommodates and fixes the connecting member 18 to which the conductor 16 is soldered, and has a closing cover 132 corresponding to a portion where the recess 120 is opened. .

The solenoid valve 130 thus configured is connected as follows. First, when the connection member 128 is mounted on the solenoid valve main body 118 from the horizontal direction, the claw 52 of the swing hook 54 of the connection member 128 is engaged with the wall surface of the protrusion 122 and fixed. At this time, the claw 52 is
22 may be engaged. By doing so, the electrode 12
The connection member 4 and the connection member 18 are electrically connected via the electric connection member 126, and are protected from the outside by the cover 132.

On the other hand, when the connecting member 128 is mounted on the solenoid valve main body 118 from the vertical direction, the connecting member 128 may be inverted and the claw 52 of the swing hook 54 may be inserted into the groove 125.

By configuring the solenoid valve 130 in this manner, the same member can selectively cope with any connection direction orthogonal to each other. The solenoid valve body 11
8. The connection member 128 may be formed of a transparent member, and the wiring state may be visually maintained.

A fourth embodiment of a solenoid valve manifold incorporating the solenoid valve constructed as described above will be described with reference to FIGS.

The solenoid valve manifold 90 is basically constructed by mounting a solenoid valve 94 on a manifold 92. The solenoid valve 94 has three electrodes 95 at the bottom. On the other hand, on the manifold 92, an electric connection member 96 in which conductive elastic bodies and non-conductive elastic bodies are alternately laminated on the upper surface is mounted. The electric connection members 100 stacked in three rows are inserted into the through holes 98 provided on the side surface,
One outlet of the through hole 98 is provided with the electric connection member 9.
A wiring board 102 that electrically connects the wiring boards 6 and 100 is mounted.

As shown in FIG. 10, the wiring board 102 is provided with three connection terminals 103 for connection of the electric connection member 96 on the upper surface, and on the conductive elastic body portion of the electric connection member 100 on the side surface. A corresponding connection terminal 104 is provided. In this case, the connection terminals 103 and 104 are connected by the printed wiring 106. The connection terminal 104 not connected by the printed wiring 106 functions as a relay terminal to another solenoid valve manifold 90.

As the wiring board 102, one having various patterns of the printed wiring 106 is prepared, and the pattern of the printed wiring 106 is indicated by a symbol or the like on the side surface so as to be visually recognized from the outside when the manifold is formed. The wiring board 102 is selected according to the connection position of the manifold 92, the type of the mounted electromagnetic valve, and the like.
The electric circuit of the solenoid valve manifold 90 can be configured via the. Further, a film-shaped ultra-thin substrate having the printed wiring 106 is attached to the wiring substrate 102 using a removable adhesive so that the printed wiring 10
Six changes can be made. Further, the wiring board 102
LCD, L for switch and display of address etc.
The wiring may be positively changed from the outside by mounting an ED or the like. Also, a function such as a means for displaying the presence or absence of energization and a surge killer may be provided.

On the other hand, a CPU or the like may be mounted on the wiring board 102 to function as a serial-to-parallel converter for control signals, and may be connected to the sequencer via the electric connection member 100 via a serial line. In this case, the electric connection member 1
It is possible to greatly reduce the number of electric wirings via “00”.

In the solenoid valve manifold 90 constructed as described above, a plurality of claws 108 provided on one surface of the manifold 92 are inserted into the holes 110 on the other surface, and one end thereof is provided. And a male connector 114 for centralized wiring which is connected to the female connector of a sequencer (not shown) and has an electrical connection member 100 connected to the other end.

On the other hand, the male connector 114
By mounting a parallel converter and performing communication with the solenoid valve 94 in parallel and communication with the sequencer in serial, the number of wires between the manifold 92 and the sequencer can be greatly reduced. The manifold 92 provided with the male connector 114 also serves as the compressed air supply port of the solenoid valve manifold 90, and has a one-touch joint 116 therefor.

The solenoid valve manifold 90 may have a configuration in which a pneumatic device other than an electromagnetic device, such as an ejector, is mounted above the manifold 92.

In this embodiment, the same effects as those of the first embodiment can be obtained, and by using the electric wiring member 100 and the wiring board 102 for the manifold 92, wiring to the plurality of solenoid valves 94 can be easily performed. It is. Further, as long as the number of the conductive elastic members of the electric wiring member 100 can correspond numerically, the number of the electromagnetic valves 94 can be increased.

[0038]

According to the solenoid valve of the present invention, the following effects can be obtained.

That is, since the conductive elastic body is used for the electrical connection portion of the solenoid valve, the conductive elastic body is simply brought into contact with both the portion of the solenoid valve connected to the solenoid and the conductor for electric wiring. Can be electrically connected. Therefore, it is easy to manufacture without requiring a simple configuration and strict positional accuracy. Further, the conductive elastic body can be made thinner, thereby obtaining an effect that the whole device can be easily reduced in size.

[Brief description of the drawings]

FIG. 1 is a perspective explanatory view of an assembled state of a solenoid valve according to a first embodiment of the present invention.

FIG. 2 is an explanatory sectional view of an assembled state of the solenoid valve according to the first embodiment of the present invention.

FIG. 3 is a perspective explanatory view of an assembled state of the electric connection member of the first embodiment according to the present invention.

FIG. 4 is a perspective explanatory view of an assembled state of the solenoid valve according to the first embodiment of the present invention.

FIG. 5 is an explanatory perspective view of another type of electric connection member of the first embodiment according to the present invention.

FIG. 6 is an explanatory perspective view of the assembled state of the solenoid valve using the flexible board according to the first embodiment of the present invention.

FIG. 7 is a perspective explanatory view of an assembled state of a solenoid valve according to a second embodiment of the present invention.

FIG. 8 is an explanatory perspective view of an assembled state of a solenoid valve according to a third embodiment of the present invention.

FIG. 9 is a perspective explanatory view of an assembled state of a solenoid valve manifold according to a fourth embodiment of the present invention.

FIG. 10 is a perspective view showing a state in which a wiring board of a solenoid valve manifold according to a fourth embodiment of the present invention is assembled.

[Explanation of symbols]

 10, 76, 94, 130 ... electromagnetic valve 12, 78, 118 ... electromagnetic valve main body 14 ... substrate 16 ... electric wiring conductor 18 ... connecting member 20, 22, 73, 80, 96, 100 ... electric connecting member 74 ... Flexible board 90 ... Solenoid valve manifold 102 ... Wiring board

Continuation of the front page (72) Inventor Akio Saito 4-2-2 Kinudaidai, Yawaharamura, Tsukuba-gun, Ibaraki Pref. SMC Corporation Tsukuba Technical Center ) Surveyed field (Int.Cl. ⁷ , DB name) F16K 31/06

Claims (1)

(57) [Claims] [1 claim: a solenoid valve body, said a electric wiring connecting member for connecting the solenoid valve body and external electrical wiring, said electrical wiring connecting member has a plurality of conductive elastic bodies, their
Non-conductive elastic body interposed between each conductive elastic body
Has the door, the conductive elastic body, electromagnetic, characterized in that performing the contact with the electrical connection the wiring portion connected to the solenoid incorporated in the solenoid valve body both of said electrical wiring valve. 2. The solenoid valve according to claim 1, wherein a plurality of solenoid valves are connected by a manifold.
Characterized in that an electrical connection of an external electric wire and the electromagnetic valve, through the stack of said manifold <br/> conductive elastic member provided inside the hold and a non-conductive elastic material And a solenoid valve.