JPS591887A - Electromagnetic flow control valve device - Google Patents

Abstract

PURPOSE:To improve operative durability of a valve, by both inserting a sleeve onto a rotary shaft and integrally forming a rotary valve to an end part, exciting a permanent magnet provided to the sleeve with an electromagnetic coil, rotating the rotary shaft and selecting an input and output port through the rotary valve. CONSTITUTION:When an electric current is not conducted to flow in electromagnetic coils 33, 34, a rotary valve 24 is held to an initial position, and a communication hole 25 is opened while a communication hole 26 is closed, consequently the atmospheric air is supplied to an output port 13. If the coils 33, 34 are electrically conducted and excited, a rotary shaft 22 is rotated, and the rotary valve 24 is turned to decrease an opening of the hole 25 while increase an opening of the hole 26, consequently a negative pressure in accordance with an opening of the both holes 25, 26 is supplied to the output port 13. The opening of the communication holes 25 and 26 is arranged in a relation reversely obtained to each other.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electromagnetic flow control valve device, and more particularly to an electromagnetic flow control valve device including a valve pedestal that rotates in response to an input electric signal GJ.

In conventionally well-known 8-port type solenoid valves, such as vacuum, switching, and valves, by changing the ON-OFF ratio and duty ratio of the voltage applied to the electromagnetic coil, it is possible to change between an atmospheric boat and a negative pressure boat. The structure is such that the negative pressure supplied to the output boat is controlled by controlling the communication open time with the output boat. In this poem, the valve opens and closes by repeatedly colliding with the valve seat depending on the control frequency. For this reason, there are problems in that the durability of the valve is disadvantageous in terms of operation, and it is not suitable for precise fluid control, which is not desirable in practice.

In order to deal with the above-mentioned problems of the conventional valve device, the present invention aims to improve the operation and durability of the valve, and at the same time, to control the fluid with high precision and responsiveness. The purpose is to

In order to achieve the above objectives, the present invention utilizes the rotational torque received by the permanent magnet to control the flow rate P of the fluid through rotational movement. The body of the valve device is provided with a first port, a second port, and an output port. A rotating shaft is rotatably arranged inside the body, and a disk-shaped permanent magnet is fixed on the rotating shaft via a resin sleeve. An electromagnetic coil is placed in the I-applying position of the permanent magnet, and the magnetic field generated by the coil is directed in a direction G parallel to the permanent magnet.
This acts to generate rotational torque on the rotating shaft,
n11 integrally forming a rotary pulp 4J on one end of the rotary shaft, rotatably housing the rotary valve in a bearing Ffb material, and further forming a space 1 inside the rotary valve that communicates with the output port; In addition, the 11th car Jm hole and the 2nd continuous ji power hole, which communicate with the first and second human-powered boats, respectively, are connected to r.
fiJ is formed in the bearing part phase, and the first and second continuous gober 1 holes are controlled to open and close as the rotary valve rotates. For example, if the first man-powered boat is connected to an atmospheric source and the second man-powered boat is connected to a negative pressure source, a 1-ton rotary valve integrally formed on the rotating shaft connects the atmospheric source and the output port. Communication and communication between the negative pressure source and the output port are controlled, and a negative pressure proportional to the applied current is applied to the output port.
i: Can be supplied.

In particular, in the configuration of the present invention described above, a space communicating with the output boat is formed in the rotary pulp formed integrally with the rotating shaft, and the space is connected to the first and second manpower at the same time. It has a pulp structure in which the bearing member has first and second communication holes that communicate with the boat, respectively, and the opening degrees of the first and second communication holes are controlled as the rotary valve rotates. Therefore, it is possible to reduce the dimensions of the valve structure and make it more compact.
In addition, the valve structure is IMMT, which improves silk attachment and processability. Also, is there a configuration in which a disk-shaped permanent magnet is fixed on the rotating shaft via a resin sleeve? i: Compared to the method of fixing the permanent magnet directly on the rotating shaft, firstly, it is easier to position the permanent magnet in the axial direction, which improves the ease of assembly, and it also prevents wear or cracks on the mounting surface of the permanent magnet. 11. This prevents the occurrence of such problems and securely fixes the eyes on the rotating shaft.11. It is something that

Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings.

1st shows an electromagnetic flow control valve device 10 according to the present invention, and includes a body 14 having a first human-powered boat 11, a second human-powered boat 12, and an output port 13;
A second body 15 made of a magnetic material is integrally connected to each other by a connecting member 16 2n. There is a rotating shaft 22 in both bodies 14 and 15 that rotates according to the applied current value, which will be described later.
is placed p71. ．． The left portion of the ii+t+22 in the drawing is rotatably housed in the receiving member 28. At the left end of the rotation 1IiIiI22, there is a pulp means, that is, a rotation shaft 22 that rotates integrally with the pulp 24. A space 24a formed inside the rotary valve 24 is Constant communication with output port 18,
The opening and closing of the first communicating hole 25 and the second communicating hole 26 formed in the bearing member 23 are controlled by the rotary valve 24 27'L/
'). When the first communication hole 25 is open, the first human-powered boat 11
is the first iM+ path 27° and the first communication hole 25. Space part 24a
communicates with the output port 18 via the second communication hole 26.
The opening point is 2nd man-powered boat 12th 2nd passage 28. Second communication hole 26. It communicates with the exit boat 18 via the space 24a. The rotary valve 24 rotates 1+T clockwise as the rotary shaft 22 rotates in FIG. 2, and the effective diameter of the rotary valve 24 is approximately the same as the diameter of the rotary shaft 22. .

A resin sleeve 80 is inserted and fixed onto the rotating shaft 22, and a radially magnetized disk permanent magnet 29 is fixed on the sleeve 3o. A casing member 81.32 is disposed outside the magnet 29, and a pair of pobinless air-core electromagnetic coils 8 are disposed between the member 81.32 and the magnetic body 15.
8.84 is in the arrangement En. Also, magnet 29 and body 1
The magnetic yoke member 35 interposed between the rotating shafts 22 and 5 is for increasing the rotational torque force received by the rotating shaft 22. When a signal current is applied to the electromagnetic coil 33.84, the coil 34 causes the magnet 29. The direction of the current applied to both coils 88 and 34 is determined so that a parallel magnetic field via the coil 8B and the body 15 acts on the magnet 29. When the coil is energized, the rotating shaft 22, that is, the υ1 rotation pulp 24, rotates clockwise 8, and the communication hole 2 rotates in proportion to the applied current value.
5.26 is the opening/closing control. In addition, as shown in Figure 8, 1"L
36 is a fixing member made of resin.

Casinda 82 is -! of the second body 15. 7I■, and is fitted and fixed into a resin terminal holder 87, with one end of the rotating shaft 22 protruding inside the terminal holder 87. Rotation ^1122
A spiral spring 88 for biasing the rotary pulp 24 to a predetermined position is attached to the right end of the rotary shaft 2.
Fixed to 2rt. The cover member 39 is the 0-ring 4
0, an epoxy resin material 41 is inserted into the casing 82 and fixed therein, and an epoxy resin material 41 is installed as a fixing and sealing member 2r+. Holds E by the terminal holder 37 mentioned above.
A pair of terminals 42 (only one shown) are connected to the electromagnetic coils 33 and 34 as appropriate. In addition, 43 and 44 indicate rubber members for sealing.

In this embodiment, the first man-powered boat 11G constitutes an atmospheric boat that is always in communication with an atmospheric source, the second man-powered boat 12 is a negative pressure boat that is always in communication with a negative pressure source, and the output boat is operated by a servo motor as appropriate. GJ-connected F Tl.

ing. When the electromagnetic coil 33.84 is de-energized, the rotary valve 24 is held at its initial position by the biasing force of the spring 38, and the pulp 24 opens the first communication hole 25.
t, the second communication hole 26 is closed 11. I'm here. Therefore,
The output boat 18 is supplied with only atmospheric air. Next, when a signal current is applied to the coil 38.84, the rotation is 0 h.
22 receives rotational torque, and the rotary valve 24 rotates clockwise in FIG. As a result, the opening degree of the first communicating hole 25 decreases and the opening degree of the second communicating hole 26 increases.
Negative pressure is supplied to the output boat 13 according to the opening degree of the Ryotsu through holes 25 and 26. At the same time, the first Jin hole 25 and the second
The opening degree with the communication hole 26 has a contradictory relationship with respect to the rotation of the pulp 24. When the rotary valve 24 further rotates clockwise in FIG. 2, the first communication hole 25 closes and the opening degree of the second communication hole 26 becomes maximum. At this time, the maximum negative pressure is supplied to the output boat 13.1. Ru. In this way,
A negative pressure proportional to the input current can be taken out from the output boat 13.

Note that the current applied to the electromagnetic coils 83, 34 described above is controlled by, for example, a computer that detects the operating state of the automobile engine.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing one embodiment of the electromagnetic flow control valve device of the present invention, FIG. 2 is a cross-sectional view of FIG.
It is a sectional view taken along ■-■ of the figure. DESCRIPTION OF SYMBOLS 10... Electromagnetic flow control valve device, 11.12... Input boat, 18... Output boat, 14.15... Body, 22... Rotating shaft, 28... Bearing member, 24・
...Rotary valve, 24a...Empty i1 part, 25.26.
...Communication hole, 29...Disk-shaped permanent magnet, 30...Resin sleeve, 33.84...Electromagnetic coil patent applicant Aisin Seido Co., Ltd. Representative Reio Nakai 2nd WI J422 35

Claims (1)

[Claims] A body having a first manpower boat, a second manpower port, and an output boat, a rotary shaft disposed in the body for rotation, a resin sleeve inserted and fixed onto the rotary shaft, and a resin sleeve fixed on the sleeve. A disk-shaped permanent magnet, the permanent magnet t= (
an electric Fj coil for generating a parallel magnetic field for use; a rotary valve formed integrally with one side of the rotary shaft and rotatably housed within the bearing member; formed inside the rotary valve; a space that always faces the output boat; and a first communication hole formed in the bearing member and that communicates the first and second human-powered boats with the first and second human-powered boats. The rotary valve has a rotation t to h; the first and second continuous holes in J are opened and closed respectively;
An electromagnetic flow control valve device characterized by the following features: