JPS5926136Y2 - solenoid valve - Google Patents

Description

[Detailed description of the invention] The purpose of the invention is to
This is an improved version of the solenoid valve disclosed in Japanese Patent No. 1128, which consumes less power.

That is, in this prior art, the valve plate 1 is rotatably disposed within the valve box 2, and a single fluid flowing within the valve box 1 is stopped.
Current is only instantaneously passed through the valve plate 1 when the valve plate 1 is opened or closed, and the valve is maintained at a predetermined position by the attractive force of a permanent magnet during the rest of the period.

Therefore, it is not possible to alternately flow or stop the two fluids, and since a combination of a permanent magnet and an electromagnet is used, there are drawbacks such as high cost.

In order to achieve the object of the present invention, the present applicant has devised a reciprocating rotor having a bipolar rotating magnetic pole face by using spring force and electromagnetic force to deviate clockwise and counterclockwise around the rotation axis. This is a solenoid valve that utilizes the rotating moment.

Specific examples thereof will be described below.

Regarding the first embodiment (FIGS. 1 to 3).

Reference numerals 1 and 2 are fluid input vibrators protruding into the valve housing 3 for introducing fluid such as gas or liquid.

Reference numeral 4 denotes a fluid output vibrator projecting outward from the valve casing 3, which in this embodiment is a three-way switching valve mechanism.

Reference numeral 5 denotes a reciprocating rotor made of a magnetic material having two-pole rotating magnetic pole surfaces 5A and 5B, and is attached to a rotating shaft 6.
The reciprocating rotor 5 is always energized in the direction of arrow A by the coil spring 7 wound around the coil spring 7.

8 and 9 are valve seats attached to the reciprocating rotor 5, and the valve seat 8 is arranged to open and close corresponding to the opening A of the fluid input vibrator 1, and the valve seat 9 is arranged to open and close in correspondence with the opening A of the fluid input vibrator 2. It is arranged to open and close corresponding to 2A.

Normally, the reciprocating rotor 5 is rotated in the direction of arrow A by the firing force of the coil spring 7, and the opening 1A of the fluid input vibrator 1 is closed by the valve seat 8. .

Reference numerals 10 and 11 are valve housing constituent members made of a non-magnetic material for forming the valve housing 3, and are formed to maintain airtightness.

12 is an airtight backing, 13 and 14 are bearings, 15
and 16 are magnetic poles of a U-shaped yoke 18 having an electromagnetic coil 17 attached to the valve housing component 10 forming the valve housing 3.

The reciprocating rotor 5 described above is capable of reciprocating movement within the valve housing 3 with a predetermined gap between it and the inner wall 3A of the valve housing.

The shape of the bipolar rotating magnetic pole surfaces 5A and 5B is such that the magnetic path permeability (magnetic path permeance) of the yoke 18 increases with the declination rotation of the reciprocating rotor 5 in the direction of arrow B. In order to effectively generate rotational torque, the magnetic pole is configured to have a substantially triangular magnetic pole area in the circumferential direction, as shown in FIGS. 2 and 3.

Next, the operating mode of the mechanism of the present invention having the above configuration will be explained.

Now, when electric power is manually applied to the electromagnetic coil 17 in the state shown in FIG. 1, the magnetic poles 15 and 16 are magnetized, and the reciprocating rotor 5
is attracted, overcomes the force of the coil spring 7, and rotates in the direction of arrow B, and the valve seat 8 is moved to the opening 1A of the fluid input vibrator 1.
At the same time as opening the valve seat 9, the valve seat 9 closes the opening 2A of the fluid input vibrator 2 and switches the valve.

Next, when the electromagnetic coil 17 is de-energized, the reciprocating rotor 5
is rotated in the direction of arrow A by the restoring elasticity of the coil spring 7, and performs an operation opposite to that described above.

Regarding the second embodiment (FIG. 4) In this embodiment, the same parts as in the first embodiment are given the same numbers.

The feature of this embodiment is that the gap between the magnetic pole faces 5A, 5B and the valve housing inner wall 3A becomes narrower as the reciprocating rotor 5 rotates in the direction of the arrow B, but there are other configurations. ,
The operation and effect are the same as in the first embodiment.

Also, the first half of the rotational direction of the so-called magnetic pole faces 5A and 5B, which rotate in the direction of arrow B, may be cut out.

Therefore, in the present invention, a pair of fluid input vibrators 1 and 2 are arranged in correspondence with a pair of valve seats 8 and 9 of a reciprocating rotor 5, which is always urged to rotate in a fixed direction by a coil spring 7. ,
The feature is that either one of the fluid input vibes is closed, and when one fluid input vibe is closed by the valve seat, the other fluid input vibe is opened, so switching to another fluid is possible. The valve seat can be operated at all times, and the rotation range of the valve seat is regulated by a pair of hydraulic vibrators, so the valve can be opened and closed reliably, and the opening and closing positions of the valve can be accurately controlled at the same time. There is something.

[Brief explanation of the drawing]

Fig. 1 is a front view of the main parts of the present invention, Fig. 2 is a side view, and Fig. 3 is a perspective view of the main parts showing the relationship between the magnetic pole surface and the magnetic poles.
FIG. 4 is a front view of main parts of another embodiment. 5... Reciprocating rotor, 8, 9... Valve seat, 5A, 5B
...Two-pole rotating magnetic pole surface, 15.16...Magnetic pole.

Claims (1)

[Scope of utility model registration request] Inside the valve housing 3 made of non-magnetic material, there are two rotating magnetic pole surfaces 5A, 5.
A reciprocating rotor 5 having a reciprocating rotor 5 is mounted via a rotating shaft 6, and is always biased in a fixed direction by a coil spring 7 wound around the rotating shaft 6, and a pair of valve seats are attached to the reciprocating rotor 5. 8 and 9 are provided, and a pair of fluid input vibrators 1 and 2 are respectively disposed corresponding to the rotation range of the valve seats 8 and 9, so that either one of the fluid input vibrators is constantly operated by the springing force of the coil spring 7. On the other hand, a magnetic pole 15. which is magnetized by the electromagnetic coil 7 is located outside the valve housing 3 and is located in the rotation range of the magnetic pole faces 5A, 5B.
Solenoid valve with 16 arranged.