JPH09329262A - Solenoid valve and connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solenoid valve having excellent assembly workability. SOLUTION: A first terminal 10 is protruded (exposed) from the inside of the case of a solenoid valve body toward the outside and curved at the exposure part. In this case, in a direction extending vertically to the axial direction of a curved surface, an outermost end part is situated closer to the external side than a given position where the outermost end part makes contact with a mating terminal 30A arranged at a connector 30 on the mating side. By assembling the connector 30 on the mating side to a solenoid body 3, an energizing part 10A being the curved surface of the first terminal 10 is energized to the internal side by the mating terminal 30A and the two terminals are brought into contact with each other for electrical joining.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solenoid valve used for various oils, pneumatic devices, and the like.

[0002]

2. Description of the Related Art Conventionally, as a solenoid valve of this type, there is one shown in FIG. 9, for example.

Reference numeral 100 denotes a solenoid valve as a whole. A solenoid body 101 for driving a plunger 102 as a magnetic valve body is energized / de-energized to move the plunger 102 to switch the pressure. It is a thing. This solenoid valve 100
Is the solenoid body 101 and the solenoid body 10
1 and a valve body 103 that is coaxially and integrally assembled.

The solenoid main body 101 has a case 104 having both ends opened, a coil 106 wound around a hollow bobbin 105 housed in the case 104, and one open end of the case 104. And a closed portion 107 that is provided between the coil 106 and the closed portion 107 and that serves as a magnetic path guide member that guides the magnetic path from the case 104 to the plunger 102. A side plate 108 is provided, and the closing portion 107 is fixed at the open end of the case 104.

Further, the side plate 108 and the coil 10
A first terminal 109 and a second terminal 110 for energizing 6 are provided, and a mating terminal (not shown) provided at the other end of the lead wire connected to a power source (not shown) is
A mating connector (not shown) for accommodating the mating terminal and the first
By fitting the terminal portion connector 109A, the first terminal 109 and the mating terminal on the power source side are electrically connected to each other so that electricity can be conducted, and the second terminal 110 is grounded to the case 104 or the like. .

Next, the assembling work when a plurality of conventional solenoid valves 100 are attached to the manifold 200 as a mating assembling member and used will be briefly described with reference to FIG.

First, as shown in (A), the manifold 2
The solenoid valve 100 is assembled and arranged in the direction indicated by the arrow in the drawing in each of a plurality of insertion holes 201 provided at predetermined positions of 00. Then, as shown in (B), each connector 300 connected and wired to the power source side is fitted into the first terminal connector 109A of each solenoid valve 100, and then packing (not shown), cover, etc. are incorporated. Work is completed.

Next, the operation of the solenoid valve 100 will be described.

When the coil 106 of the solenoid body 101 is not energized, the plunger 102 moves the spring 111.
The pressing force of (2) separates from the first valve seat 112 and presses it toward the second valve seat 113 side. Therefore, the end surface of the plunger 102 contacts the second valve seat 113 to close the second flow passage 115, and the first flow passage 114 opening to the first valve seat 112 opens. As a result, the first flow path 114 and the passage 116 communicate with each other, and the fluid pressure is output to the mating controller.

The coil 1 of the solenoid body 101
When 06 is energized by the first terminal 109 and the second terminal 110, it is excited and the plunger 102 is magnetically attracted toward the magnetic attraction surface 117A of the center plate 117 against the pressing force of the spring 111. To be done. for that reason,
The plunger 102 is separated from the second valve seat 113 and comes into contact with the first valve seat 112 facing the first valve seat 112.
The first flow path 114 opening to the
The second flow path 115 that opens to 13 opens. As a result, the passage 116 and the second flow path communicate with each other, and the fluid pressure from the mating controller is discharged.

[0011]

However, in the case of the above-mentioned prior art, the following problems have occurred.

Since the solenoid body is assembled in the manifold as the mating assembly member in the axial direction and the terminals are fitted in the direction perpendicular to the axial direction, workability is improved especially in a narrow space. It was bad.

Further, when a large number of solenoid valves are used side by side, it is necessary to wire each solenoid valve via a connector or the like by a lead wire or the like connected to the power source side, which is troublesome. This requires a long working time, and the workability is further deteriorated due to the wiring treatment and the like, and a space for wiring is required.

Further, in the case where a large number of such devices are used side by side, it is necessary to arrange them in a predetermined position with respect to the manifold in order to make them compact as much as possible. Space was limited, and workability was even worse due to the directionality.

The present invention has been made to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a solenoid valve having excellent workability in assembling.

[0016]

In order to achieve the above object, in the present invention, an axially movable magnetic valve body, a coil for moving the magnetic valve body, and at least the coil are housed. And a terminal for energizing the coil, the solenoid valve being axially assembled to a mating assembly member, the solenoid valve being capable of being axially fitted to a connector connected to an external power source. The terminal has an exposed portion exposed to the outside of the side surface of the case, and the exposed portion is provided with a biasing portion capable of biasing in a direction substantially perpendicular to the axial direction. And

Further, first and second valve seats provided to face each other, a valve body made of a magnetic material that moves in the axial direction between the first valve seat and the second valve seat, and the valve body. The first and second
A pressing means for pressing one of the valve seats so as to come into contact with the valve seat, a coil wound around a bobbin having a hollow portion into which the valve element is reciprocally inserted, and a coil provided to face the valve element. The first and second valves have a fixed member made of a magnetic material, a magnetic path guide member for guiding the magnetic path, and a case for accommodating at least the coil, and resist the pressing force of the pressing means. A solenoid valve that includes a solenoid body that magnetically attracts a valve body so as to contact the other valve seat of the seat, and a terminal that energizes the coil, and is assembled in the mating assembly member in the axial direction. First and second openings that open and close the valve body to and from the first and second valve seats by the pressing force of the pressing means and the magnetic attraction force of the solenoid body.
A solenoid valve for opening and closing a flow path, the solenoid valve being capable of axially fitting with a connector connected to an external power source and having a fitting surface side with the connector closed by a cover. A third flow path is provided for guiding the fluid flowing out of the second flow path to the outside of the side surface of the case when the two flow paths are opened, and the terminal has an exposed portion exposed to the outside of the side surface of the case. The exposed portion may be provided with a biasing portion capable of biasing in a direction perpendicular to the axial direction.

It is preferable that a plurality of the terminals are provided and the biasing directions of these biasing portions are different in the axial direction and the vertical direction.

The connector has an insertion hole into which the solenoid valve is inserted in the axial direction and a mating terminal having an exposed portion over the entire circumference of the inner peripheral surface of the insertion hole, the mating terminal being the solenoid valve. It is characterized in that the solenoid valve is engaged with the solenoid valve by energizing the biasing portion of the terminal provided on the inside of the terminal.
Therefore, by assembling the solenoid valve so that the solenoid valve is inserted into the insertion hole of the connector in the same direction as the assembly direction (axial direction) of the solenoid valve to the mating assembly member, the mating terminal provided in the insertion hole is connected to the solenoid valve. By biasing the biasing portion of the terminal provided on the inside toward the inside, the terminals are electrically contacted and the solenoid valve and the connector are engaged at the same time.

Further, even if the surface of the solenoid valve that is fitted to the connector is closed by the cover, the fluid is guided to the outside of the side surface of the case by the third flow path, and the function of the solenoid valve is impaired. There is no.

Further, since the solenoid valve has a plurality of terminals so as to be biased in different directions in the axial direction and the vertical direction, the solenoid valve is engaged with the connector at a stable position. To be done.

[0022]

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the dimensions of the components described in this embodiment,
The material, shape, relative arrangement, and the like are not intended to limit the scope of the present invention only to them unless otherwise specified.

1 to 8 show a solenoid valve according to an embodiment of the present invention.

FIG. 1 is a schematic sectional view of a solenoid valve according to an embodiment of the present invention. Reference numeral 1 denotes the solenoid valve as a whole, and the solenoid 2 for driving the plunger 2 as a magnetic valve body is energized / de-energized to move the plunger 2 to switch the pressure. . This solenoid valve 1
Includes a solenoid body 3 and a valve body 4 coaxially and integrally assembled with the solenoid body 3.

The solenoid body 3 is a case with both ends open.
A case 5, a coil 7 wound around an inner hollow bobbin 6 housed in the case 5, and a closing portion provided at one opening end of the case 5 and closing the opening end. 8 and coil 7
And a closed side 8, and an annular side plate 9 as a magnetic path guide member for guiding the magnetic path from the case 5 to the plunger 2 is provided. It is fixed at the open end.

A first terminal 10 and a second terminal 11 for supplying electricity to the side plate 9 and the coil 7 are provided, and the second terminal 11 is grounded to the case 5 or the like.

Here, the first terminal 10 characterizing the present invention
Will be described in more detail with reference to FIG. FIG. 2 shows FIG.
It is an enlarged view of the P section in.

The first terminal 10 projects (exposes) from the inside of the case 5 of the solenoid body 3 to the outside, and the exposed portion is curved as shown in the figure. At this time, the outermost end portion in the direction perpendicular to the axial direction of the curved surface is configured to be outside the predetermined position where it contacts a mating terminal 30A provided on the mating connector 30 described later. ing.
Then, as shown by the dotted line in the figure, the mating connector 30
Is attached to the solenoid main body 3 so that the urging portion 1 which is the curved surface of the first terminal 10 by the mating terminal 30A.
0A is urged toward the inside, and both terminals are brought into contact with each other and electrically joined.

Next, the shape of the case 5 and the position where the first terminal 10 is arranged will be briefly described with reference to FIG. FIG. 3 is an upper schematic perspective view for explaining various cases of the shape of the case 5 and the arrangement position of the first terminal 10. O is the axis.

It is desirable that a plurality of the first terminals 10 are arranged in different directions in the direction perpendicular to the axial direction, and (A)
Further, as shown in (C), they may be arranged in two places so as to be opposed to the axis O so as to be located in a straight line passing through the axis O, or as shown in (B), the axis O may be centered. You may arrange | position in three places so that it may become an equal angle (120 degrees). By arranging in this way, the connector 30 can be stably incorporated in the position and electrically stable.

The cross-sectional shape of the case 5 in the direction perpendicular to the axial direction is circular as shown in (A) and (B), and the inner peripheral surface of the hole portion 30B as an insertion hole of the connector 30 will be described later. The mating terminal 30A provided so as to be exposed to the inside has a ring shape. In addition, a manifold as a mating assembly member described later
By making the mounting portion of the sleeve 31 also circular, the directionality at the time of assembling the solenoid valve 1 to the connector 30 and the manifold 31 is eliminated and the workability is improved. Further, if a regular n-gon is used instead of a circle (regular hexagon in (C)), the directionality during assembly is n.

The position where the second terminal 11 is arranged may be any position as long as it does not interfere with the first terminal 10. Here, the above-mentioned FIG. 1 corresponds to A- in FIG.
It is an OB sectional view.

Next, the mating connector 30 and the manifold 31 and the assembling work thereof will be described with reference to FIGS. 4 and 5.

FIG. 4 is a plan view of the connector 30 having six ring-shaped mating terminals 30A. As shown in the figure, six connectors 30 are provided in the hole portion 30B so that the ring-shaped mating terminals 30A are exposed, and each terminal is connected to the ring portion inside the connector 30 (of course, it may be integrated. ) The other end of the terminal is the connector 3
The second connector 30C provided at 0 is exposed.

Then, as shown in FIG. 5, after the solenoid valve 1 is fully assembled in the predetermined position of the manifold 31, the connector 30 is fitted in the direction of arrow S in the figure. Then, the connector 40C at the other end of the lead wire 40A connected to the power source 40 is fitted to the second connector 30C in the direction of arrow T in the figure. Next, packing and a cover are incorporated, and the work is completed.

Next, a state in which the assembling is completed will be briefly described with reference to FIGS. 6 to 8. 6 is a schematic plan view showing a state where the assembling is completed, FIG. 7 is a partial sectional view of a portion AA in FIG. 6, and FIG. 8 is a plan view of the solenoid valve 1.

As shown in the figure, the solenoid valve 1 is fitted with a seal member such as a rubber packing 33 and a cover 32. At this time, the upper surface of the solenoid valve 1 (the surface on the side fitted with the connector) is closed by the cover 32, but the groove 21 as the third flow path is provided on the upper surface of the solenoid valve 1. Accordingly, as will be described later, when the second valve seat 12 is opened and the second flow path 13 is opened, the fluid flowing through the second flow path 13 is guided to the groove 21 and the side surface of the case 5 is closed. Since it is discharged to the outside, the function of the solenoid valve 1 is not impaired.

Thus, as in the prior art, the first terminal 1
Since a connector portion is not required for 0, a minimum space is sufficient, and the direction of assembling the solenoid valve 1 into the manifold 31 and the direction of fitting the connector 30 are the same axial direction. Excellent workability. Also,
Workability is further improved because the solenoid valve 1 does not need to be oriented in the mounting direction. Further, in the case where the connector 30 is a collective connector having a plurality of ring-shaped mating terminals 30A, the plurality of solenoid valves 1 can be fitted with one fitting work, so the workability is further improved.

Next, the operation of the solenoid valve 1 will be described.

When the coil 7 of the solenoid body 3 is not energized, the plunger 2 is separated from the first valve seat 16 by the pressing force of the spring 15 and is pressed toward the second valve seat 12 side. Therefore, the end surface of the plunger 2 contacts the second valve seat 12 to close the second flow passage 13, and the first flow passage 17 opening to the first valve seat 16 opens. Thereby, the first flow path 17
And the passage 18 communicate with each other, and the fluid pressure is output to the counterpart control unit.

When the coil 7 of the solenoid body 3 is energized by the first terminal 10 and the second terminal 11,
When excited, the case 5, the side plate 9, the plunger 2, and the center plate 19 form a magnetic circuit.
As a result, the plunger 2 is magnetically attracted toward the magnetic attraction surface 19A of the center plate 19 against the pressing force of the spring 15. Therefore, the plunger 2 separates from the second valve seat 12 and comes into contact with the opposing first valve seat 16, and the first flow path 19 opening in the first valve seat 16 is closed and at the same time, the second valve seat 12 is closed. The open second flow path 13 opens. As a result, the passage 118 and the second flow path 3 communicate with each other via the slit 20 of the plunger 2, and the fluid pressure from the mating controller is discharged.

[0042]

According to the present invention, the solenoid valve is connected so as to be inserted into the insertion hole of the connector in the same direction as the assembling direction (axial direction) of the solenoid valve to the mating assembly member. Since the connector and the terminal on the side are engaged with the solenoid valve, the workability of assembling is excellent and the space is minimized.

Even if the surface of the solenoid valve that is fitted to the connector is closed by the cover, the fluid is guided to the outside of the side surface of the case by the third flow path, and the function of the solenoid valve is impaired. There is no.

Furthermore, since the solenoid valve has a plurality of terminals so as to be biased in different directions in the axial direction and the vertical direction, the solenoid valve is engaged with the connector at a stable position. it can.

Further, since the mating terminal having the exposed portion over the entire circumference is provided on the inner peripheral surface of the insertion hole provided in the connector, the directionality of the assembling direction of the solenoid valve is not required, and the assembling is further improved. Good workability.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view of a solenoid valve according to an embodiment of the present invention.

FIG. 2 is an enlarged view of a main part of the solenoid valve according to the embodiment of the present invention.

FIG. 3 is a diagram for explaining a case shape and a terminal arrangement position of the solenoid valve according to the embodiment of the present invention.

FIG. 4 is a schematic plan perspective view of a mating connector of the solenoid valve according to the embodiment of the present invention.

FIG. 5 is a view for explaining an assembling work of the solenoid valve according to the embodiment of the present invention.

FIG. 6 is a plan view illustrating a state where assembly of the solenoid valve according to the embodiment of the present invention is completed.

FIG. 7 is a partial cross-sectional view of FIG.

FIG. 8 is a plan view of the solenoid valve according to the embodiment of the present invention.

FIG. 9 is a schematic cross-sectional view of a solenoid valve according to a conventional technique.

FIG. 10 is a diagram illustrating an assembling work of a solenoid valve according to a conventional technique.

[Explanation of symbols]

 1 Solenoid Valve 2 Plunger 5 Case 7 Coil 10 1st Terminal 10A Energizing Part 11 2nd Terminal 21 Groove 30 Connector 30A Mating Terminal 31 Manifold

Claims (4)

[Claims] 1. A magnetic valve body axially movable, a coil for moving the magnetic valve body, a case for accommodating at least the coil, and a terminal for energizing the coil. A solenoid valve which is axially assembled to a mating assembly member, the solenoid valve being capable of being axially fitted to a connector connected to an external power source, wherein the terminals are exposed to the outside of the side surface of the case. A solenoid valve having a portion, and a biasing portion capable of biasing the exposed portion in a direction substantially perpendicular to the axial direction is provided. 2. A first and a second valve seats provided to face each other, a valve body made of a magnetic material which moves in the axial direction between the first valve seat and the second valve seat, and the valve body. And a coil wound around a bobbin having a hollow portion into which the valve body is reciprocally inserted, the pressing means for pressing the valve so as to contact one of the first and second valve seats, and the valve. A fixed member made of a magnetic material provided to face the body, a magnetic path guide member for guiding the magnetic path, and a case for accommodating at least the coil,
A solenoid body for magnetically attracting the valve body so as to come into contact with the other valve seat of the first and second valve seats against the pressing force of the pressing means; and a terminal for energizing the coil. A solenoid valve that is axially assembled to a mating assembly member, wherein the valve body is brought into contact with and separated from the first and second valve seats by the pressing force of the pressing means and the magnetic attraction force of the solenoid body. In a solenoid valve that opens and closes the open first and second flow paths, it can be axially fitted with a connector connected to an external power source,
And a solenoid valve in which the side of the mating surface with the connector is closed by a cover, which guides the fluid flowing out of the second flow path to the outside of the side surface of the case when the second flow path is opened. A third flow path is provided, the terminal has an exposed portion exposed to the outside of the side surface of the case, and the exposed portion is provided with a biasing portion capable of biasing in a direction substantially perpendicular to the axial direction. Solenoid valve characterized by 3. The solenoid according to claim 1, wherein a plurality of the terminals are provided, and the urging directions of the urging portions are perpendicular to the axial direction and are different from each other. valve. 4. An insertion hole into which the solenoid valve according to any one of claims 1 to 3 is axially inserted, and a mating terminal having an exposed portion over the entire inner peripheral surface of the insertion hole. The connector is characterized in that the mating terminal is made conductive by urging the urging portion of the terminal provided on the solenoid valve toward the inner side, and engages the solenoid valve.