JPH1182797A - Feeder device for solenoid valve - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent electric short-circuit or deterioration of electrical insulation performance inside an insertion hole by closing one insertion hole without using any special lid when a connector is connected to the other insertion hole. SOLUTION: This feeder device 2 for a solenoid valve 1 is electrically and mechanically connected to the solenoid valve 1 when a connector 6 is selectively inserted into one of two insertion holes 8, 9, which are opened in a casing 7 of the solenoid valve 1 toward the different directions mutually. The connector 6 is provided with a cover 26 closing one of the insertion holes 8, 9 when the connector 6 is connected to the other. The connector 6 is also provided with a locking claw 27 locking the connector 6 to the casing 7 when the cover 26 closes either of the insertion holes 8, 9. The locking claw 27 is engaged in either of the insertion holes 8, 9.

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 used to supply power to a solenoid valve. More particularly, the present invention relates to a power supply device for an electromagnetic valve in which a connector is connected to an insertion hole formed in a casing of the electromagnetic valve.

[0002]

2. Description of the Related Art Conventionally, as this kind of power supply device, there is a power supply device in which a connector is selectively connected to one of a plurality of insertion holes opened in different directions in a casing of an electromagnetic valve. is there. This is a configuration for easily connecting a connector to the solenoid valve when the solenoid valve is installed at a predetermined location, regardless of the arrangement direction.

[0003] Japanese Utility Model Publication No. 2-255050 discloses an example of this type of power supply device. As shown in FIG. 10, the power supply device for supplying electric power to the solenoid 41 of the solenoid valve includes a cover 42 containing a power supply electric circuit and the like, and a power supply connector 43. The cover 42 has two insertion holes 46 and 47 preliminarily opened in different directions, that is, the upper side wall 44 and the front wall 45.
Each of the projection 48 and the locking wall 49 provided in each of the insertion holes 46 and 47 is provided with a groove 50 provided in the connector 43.
And the hook 51. Terminal pins (not shown) provided in each of the insertion holes 46 and 47 correspond to terminal pieces (not shown) provided in the connector 43. Connector 43
Is selectively inserted into one of these two insertion holes 46 and 47. At the time of insertion, the ridge 48 and the locking wall 4
The connector 43 is mechanically connected to each of the insertion holes 46 and 47 by engaging the groove 9 and the hook 51 with each other. The connector 43 is electrically connected to each of the insertion holes 46 and 47 by the terminal pins and the terminal pieces being engaged with each other.

[0004]

However, in the above-described power supply device, when the connector 43 is connected to one of the insertion holes 46, 47, the other insertion holes 47, 46 are open. Therefore, the opened insertion holes 47 and 46 are opened.
In this case, the terminal pins for electrical connection are exposed, and there is a risk of an electrical short circuit or the like. Also, foreign substances such as dust easily enter the opened insertion holes 47 and 46,
There is a possibility that the electric insulation of the electric member such as the terminal pin is reduced by the foreign matter.

In order to solve the above problem, a connector 4
It is also conceivable to close the insertion holes 47 and 46 to which the 3 is not connected with a separate lid or the like. However, providing such separate members may cause them to be lost or increase the cost of the power supply device.

The present invention has been made in view of the above circumstances, and an object of the present invention is to use a separate lid or the like for another insertion hole when a connector is connected to one of the plurality of insertion holes. It is an object of the present invention to provide a power supply device for an electromagnetic valve, which can be closed without any trouble and can prevent problems such as an electric short circuit and a decrease in electric insulation.

[0007]

In order to achieve the above object, an invention according to claim 1 is characterized in that a plurality of insertion holes for power supply are formed in a casing of a solenoid valve in different directions, respectively. In a power supply device for an electromagnetic valve comprising a power supply connector selectively inserted into one of the insertion holes and electrically and mechanically connected thereto, the connector has one insertion hole. And a cover for closing another insertion hole when connected to the device.

According to the above configuration, the connector is inserted into one of the plurality of insertion holes to supply power to the solenoid valve, and the connector is electrically and mechanically connected in the insertion hole. At this time, the other insertion holes into which the connector has not been inserted will be closed by the cover simultaneously with the connection of the connector, and the insertion holes will not be exposed to the outside.

In order to achieve the above object, the invention according to claim 2 is characterized in that two insertion holes for power supply are formed in the casing of the solenoid valve in different directions at 90 degrees to each other, and both insertion holes are provided. In a power supply device for an electromagnetic valve, comprising a power supply connector selectively inserted into one of the holes and electrically and mechanically connected thereto, the connector has the connector connected to one of the insertion holes. In this case, a cover for closing the other insertion hole is provided.

According to the above configuration, the connector is inserted into one of the two insertion holes to supply power to the solenoid valve, and the connector is electrically and mechanically connected in the insertion hole. At this time, the other insertion hole into which the connector has not been inserted will be closed by the cover simultaneously with the connection of the connector, and the insertion hole will not be exposed to the outside.

According to a third aspect of the present invention, there is provided the connector according to the first or second aspect of the present invention, wherein the connector is provided with a casing when the cover closes the insertion hole. The purpose is to provide a locking means for locking the lock.

According to the above configuration, in addition to the operation of the first or second aspect of the present invention, when the cover closes the insertion hole,
That is, when the connector is connected to another insertion hole, the connector is locked to the casing by the locking means and is prevented from falling off.

In order to achieve the above object, according to a fourth aspect of the present invention, in the configuration of the third aspect, the locking means includes a locking claw provided on the cover. ,
The purpose is to engage with the insertion hole when the cover closes the insertion hole.

According to the above construction, in addition to the function of the third aspect of the invention, the insertion hole closed by the cover is used as a mating member for engaging the locking claw. Therefore, there is no need to separately provide a recess or the like for engaging the locking claw in the casing.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment embodying a power supply device for a solenoid valve according to the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows a solenoid valve 1 and a power supply device 2 thereof according to the present embodiment. The solenoid valve 1 includes a main body valve section 3 and an actuator section 4 fixed to one side thereof. The main body valve section 3 incorporates a spool valve (not shown). The actuator section 4 incorporates a pilot valve described later. This pilot valve is electrically controlled to adjust the pilot pressure supplied to the spool valve. The power supply device 2 is for supplying power to the pilot valve of the actuator unit 4.

The power supply device 2 includes a power supply section 5 provided in the actuator section 4 and one connector 6 for power supply connected to the power supply section 5 (two connectors 6 are shown in FIG. 1 for convenience of explanation). ). The power supply unit 5 has a casing 7 fixed to the actuator unit 4. The casing 7 has a first insertion hole 8 for power supply and a second insertion hole 8
Insertion hole 9. Each of the insertion holes 8 and 9 has a pair of holes. In FIG. 1, the first insertion hole 8 is directed upward,
The second insertion holes 9 are respectively directed forward. That is, the two insertion holes 8 and 9 are opened in different directions at 90 degrees to each other. The connector 6 has a pair of power supply lines 1.
0 is connected in advance. The connector 6 is selectively inserted into one of the two insertion holes 8 and 9 to be electrically and mechanically connected. 7 and 8 show a state where the connector 6 is selectively connected to one of the two insertion holes 8 and 9 as described above.

FIG. 2 shows the power supply section 5 in an exploded manner. Power supply unit 5
Is the casing 7 and the substrate 11 provided therein.
And The substrate 11 has a pair of terminal plates 12 protruding to one side, and a pair of terminal tubes 13 connected to each terminal plate 12 via wiring. The substrate 11 is fixed to the actuator section 4 with screws 14. Casing 7
Is fixed to the actuator unit 4 by engaging a plurality of holes 7b formed on the side surface with a plurality of claws 4a protruding from the actuator unit 4. Both terminal boards 12
Are arranged corresponding to the respective insertion holes 8 and 9 in the protrusion 7 a of the casing 7. That is, the terminal plate 12 is visually recognized from the outside through each of the insertion holes 8 and 9. On the other hand, a pair of terminal pins 15 corresponding to the both terminal tubes 13 are protruded from the actuator section 4. Both terminal pins 15 are connected to the substrate 1
When 1 is fixed to the actuator section 4, it is inserted and connected to both terminal tubes 13. FIG. 5 shows a sectional structure of the actuator section 4. The pilot valve 16 provided in the actuator section 4 is a well-known one provided with a solenoid 17 and the like.
Is connected.

FIGS. 3 and 4 show the connector 6 and the terminal plate 12. The connector 6 includes a main body 21 and a pair of insertion protrusions 22 protruding from the main body 21 to one side. Each insertion protrusion 22 has a fitting groove 23 corresponding to each terminal plate 12. As shown in FIG. 3, each fitting groove 23 is
And an opening at the lower surface of the insertion projection 22 as shown in FIG. The connector 6 further includes the fitting grooves 23.
A pair of power supply holes 24 and a pair of terminal clips 25. Each terminal pinch 25 is inserted into each power supply hole 24 with the power supply line 10 connected thereto and assembled. In this assembled state, each terminal pinch 25 is arranged in the fitting groove 23 of the corresponding insertion protrusion 22.

The connector 6 further has a cover 26 on the main body 21 thereof. The cover 26 is for closing the other insertion holes 9 and 8 when the connector 6 is connected to one of the insertion holes 8 and 9, and extends from the main body 21 onto both the insertion protrusions 22 like an eaves. Overhangs. This cover 2
6 is formed integrally with the main body 21 and can swing on the main body 21 like a seesaw based on its own elastic deformation. A pair of locking claws 27 protrude from the back surface of the cover 26 in the gap between the insertion projections 22 and the cover 26. Each locking claw 27 is disposed so as to correspond to each insertion protrusion 22. The locking claw 27 is attached to the cover 26.
Are engaged with the insertion holes 8 and 9 when the insertion holes 8 and 9 are closed. In this embodiment, the locking claw 27 and each of the insertion holes 8 and 9 are the locking of the present invention for locking the connector 6 to the casing 7 when the cover 26 closes the insertion holes 8 and 9. Configure means.

Next, the power supply device 2 configured as described above
The function and effect of the method will be described. As described above, the connector 6 is selectively inserted into one of the two insertion holes 8 and 9 of the casing 7.

That is, the solenoid 17 of the pilot valve 16
5 and 7, when the insertion projection 22 of the connector 6 is inserted into the first insertion hole 8 from above, as shown in FIGS. Connected. That is, the insertion protrusion 22 approaches the terminal plate 12 along the substrate 11 from the side of the terminal plate 12, whereby each terminal plate 12 intersects with each insertion protrusion 22 as shown in FIG. It is fitted in the fitting groove 23. In this state, in each fitting groove 23, each terminal plate 12
Is electrically and mechanically connected to the terminal plate 12 by being pinched by the terminal pinch 25. At this time, as shown in FIGS. 5 and 7, the second insertion hole 9 into which the connector 6 has not been inserted.
Is closed by the cover 26 simultaneously with the connection of the connector 6, and the inside of the insertion hole 9, particularly, the terminal plate 12 is not exposed to the outside.

On the other hand, as shown in FIGS. 6 and 8, when the insertion projection 22 of the connector 6 is inserted into the second insertion hole 9 from the side, the insertion projection 22 is electrically and mechanically connected in the insertion hole 8. Is done. That is, the insertion protrusion 22 is
Approaching the terminal plate 12 perpendicularly to the substrate 11 from the tip of
Thereby, as shown in FIG. 4, each terminal plate 12 is fitted into each fitting groove 23 along the respective insertion protrusion 22. In this state, in each fitting groove 23, each terminal plate 12 is sandwiched between the terminal clamps 25, and is electrically and mechanically connected to the terminal plate 12. At this time, as shown in FIGS. 6 and 8, the first insertion hole 8 into which the connector 6 has not been inserted is
At the same time as the connection of the connector 6, it is closed by the cover 26, and the inside of the insertion hole 8, in particular, the terminal plate 12 is not exposed to the outside.

As described above, in this embodiment, when the connector 6 is connected to one of the two insertion holes 8, 9, the other insertion hole 9, 8 can be closed by the cover 26 of the connector 6. There is no need to cover the other insertion holes 9 and 8 using a separate lid or the like. For this reason, the terminal plate 12 and the like are not exposed from the respective insertion holes 8 and 9, and an electrical short circuit therebetween can be prevented. Further, foreign matter such as dust does not enter the insertion holes 8 and 9, and it is possible to prevent the electrical insulation of the terminal plate 12 and the like from being reduced by the foreign matter.

In this embodiment, a locking claw 27 is provided on the back surface of the cover 26 so that the locking claw 27 engages with the insertion holes 8 and 9 when the cover 26 closes the insertion holes 8 and 9. I have to. Therefore, when the cover 26 closes one of the insertion holes 8, 9, that is, when the connector 6 is connected to the other insertion holes 9, 8, the connector 6 is connected to the casing by the locking claws 27 and the insertion holes 8, 9. 7 and locked. Therefore, it is possible to prevent the connector 6 from dropping out of the insertion holes 8 and 9 before it occurs.

In this embodiment, the insertion holes 8 and 9 closed by the cover 26 are used as mating members with which the locking claws 27 are engaged. Therefore, there is no need to separately provide a locking claw, a recess for engaging the locking claw, or the like on the projection 7a of the casing 7. For this reason, the shape of the connector 6 and the protrusion 7a can be made relatively simple, and the shape of the mold for molding them can be made relatively simple.

In this embodiment, the terminal plate 12 is sandwiched between the fitting groove 23 of the insertion projection 22 and the terminal clip 25 in the fitting groove 23, and the two 22 and 12 are connected to each other. for that reason,
The terminal plate 12 can be protected by being sandwiched between the insertion protrusions 22 and the like.

The present invention is not limited to the above embodiment, but can be implemented as follows without departing from the spirit of the invention. In the following embodiment, the same operation and effect as in the above embodiment can be obtained.

(1) In the above-described embodiment, as shown in FIGS. 5 and 6, the connector 6 is connected to each of the insertion holes 8 and 9 from above or in front of the protrusion 7a of the casing 7. did. On the other hand, as shown in FIG. 9, the first insertion hole 8 is provided below the protrusion 7a, and the connector 6 is connected to the protrusion 7a.
However, the connection holes 8 and 9 may be connected from below or from the front.

(2) In the above embodiment, each of the insertion holes 8,
9 and a pair of insertion projections 22 provided on the connector 6 correspondingly. On the other hand, each of the insertion holes may be one, and the connector may have only one insertion protrusion.

(3) In the above embodiment, the locking claw 27 is provided on the cover 26 of the connector 6 and the locking claw 27 is provided.
Are provided so as to be engageable with the respective insertion holes 8 and 9. On the contrary,
The locking claw provided on the connector is
It may be possible to engage with a position other than the insertion hole, for example, a concave portion provided on the side surface of the protrusion 7a.

(4) In the above embodiment, the locking claws 27 are provided on the cover 26, but the locking claws 27 may be omitted.

(5) In the above embodiment, the casing 7
Are provided with two insertion holes 8 and 9 opened in different directions from each other, and when the connector 6 is selectively connected to one of them, the other is closed by the cover 26. . On the other hand, three insertion holes opened in different directions are provided in the protrusion of the casing, and when the connector is selectively connected to one of them, the other insertion holes are closed by the cover. You may do so.

(6) In the above embodiment, the connector 6 inserted from each of the insertion holes 8 and 9 is connected to the pair of terminal plates 12 provided in common to the two insertion holes 8 and 9. . On the other hand, a connector inserted from each of the insertion holes may be connected to a terminal plate individually provided in each of the insertion holes.

[0035]

According to the first aspect of the present invention,
The connector is provided with a cover for closing another insertion hole when the connector is connected to one insertion hole. Therefore, the other insertion hole in which the connector has not been inserted is not closed by the cover simultaneously with the connection of the connector, and the insertion hole is not exposed to the outside. As a result, the insertion hole to which the connector is not connected can be closed without using a separate lid or the like, and the effect of preventing a problem such as an electrical short circuit or a decrease in electrical insulation can be prevented. Demonstrate.

According to the configuration of the second aspect of the present invention, the connector is provided with a cover for closing the other insertion hole when the connector is connected to one insertion hole. Therefore, the other insertion hole in which the connector has not been inserted is not closed by the cover simultaneously with the connection of the connector, and the insertion hole is not exposed to the outside. As a result, the insertion hole to which the connector is not connected can be closed without using a separate lid or the like, and the effect of preventing a problem such as an electrical short circuit or a decrease in electrical insulation can be prevented. Demonstrate.

According to the configuration of the third aspect of the present invention, in the configuration of the first or second aspect, the connector is locked to the casing by the locking means when the cover closes the insertion hole. I made it. Therefore, in addition to the functions and effects of the first or second aspect of the present invention, when the cover closes the insertion hole, the connector is locked to the casing by the locking means and is prevented from coming off. As a result, it is possible to prevent the connector from dropping out of the insertion hole.

According to the fourth aspect of the present invention, in the configuration of the third aspect, when one of the locking means is a locking claw provided on the cover, and the cover closes the insertion hole. Then, the locking claw is engaged with the insertion hole. Therefore, in addition to the function and effect of the invention of claim 3, it is not necessary to separately provide a recess or the like for engaging the locking claw in the casing. For this reason, it is possible to make the shape of the connector and the casing relatively simple, and it is possible to obtain the effect that the molding dies can be made relatively simple.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an electromagnetic valve and a power supply device thereof according to an embodiment.

FIG. 2 is an exploded perspective view showing a power supply unit according to the embodiment;

FIG. 3 is a perspective view showing a connector and the like according to the embodiment;

FIG. 4 is a perspective view showing a connector and the like according to the embodiment;

FIG. 5 is a cross-sectional view illustrating a structure of a power supply device and the like according to the embodiment;

FIG. 6 is a cross-sectional view showing a structure of a power supply device and the like according to the embodiment.

FIG. 7 is a perspective view showing a connection state of a power supply device according to one embodiment.

FIG. 8 is a perspective view showing a connection state of the power supply device according to the embodiment.

FIG. 9 is a cross-sectional view illustrating a structure of a power supply device and the like according to another embodiment.

FIG. 10 is a perspective view showing a power supply device according to the related art.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Solenoid valve 2 Power supply device 6 Connector 7 Casing 8 1st insertion hole 9 2nd insertion hole 26 Cover 27 Locking claw (8, 9, 27 comprises locking means.)

Claims (4)

[Claims] 1. A plurality of insertion holes for power supply, which are respectively opened in different directions in a casing of a solenoid valve, and selectively inserted into one of the insertion holes to be electrically and mechanically connected. A power supply device for an electromagnetic valve comprising one connector for power supply, wherein the connector has a cover for closing another insertion hole when the connector is connected to the one insertion hole. Characteristic power supply device for solenoid valve. 2. A power supply insertion hole formed in the casing of the solenoid valve in different directions at 90 degrees to each other, and selectively inserted into one of the two insertion holes to be electrically and mechanically inserted. In the power supply device for an electromagnetic valve including one connector for power supply to be connected, the connector is provided with a cover for closing the other insertion hole when the connector is connected to the one insertion hole. A power supply device for an electromagnetic valve. 3. The power supply device for an electromagnetic valve according to claim 1, wherein the connector is provided with a connector for locking the connector to the casing when the cover closes the insertion hole. A power supply device for an electromagnetic valve, comprising a locking means. 4. The power supply device for an electromagnetic valve according to claim 3, wherein the locking means includes a locking claw provided on the cover,
The locking claw engages with the insertion hole when the cover closes the insertion hole.