JPH07279850A - Linear air pump - Google Patents

Abstract

PURPOSE:To reduce power consumption and provide a very small linear air pump having less oscillation and less noise by oscillating a diaphragm and a permanent magnet directly and oscillating the diaphragm and the permanent magnet and an electromagnet within a casing and using both sides of the diaphragm and the permanent magnet at the same time. CONSTITUTION:Magnetic force acts at electromagnets 10, 11 opposite to permanent magnets 5, 6 if ac voltage is applied to left and right electromagnetic coils 7. Suction and repulsion force will generate between the both magnets and a diaphragm 4, and permanent magnets 5, 6 are oscillated to left and right. Direction of the magnetic force of the diaphragm 4 and the permanent magnets 5, 6 changes at same frequency as that of an electric power and they oscillate. The air is sucked and compressed and discharged by volume variation of both sides of a casing 12 and action of valves 3 and 8. Thereby, the casing and the other parts can easily be exchanged with little back breaking maintenance.

Description

Detailed Description of the Invention

[0001]

[Industrial application] The present invention is an air pump used in septic tanks, medical treatment, physics and chemistry, ornamental fish, industry, etc.

[0002]

2. Description of the Related Art In the conventional diaphragm system, when an AC power source is energized to an electromagnet facing a permanent magnet fixed to a rod, a magnetic force of attraction and repulsion is generated between the electromagnet and the permanent magnet, and the rod vibrates. It is then transmitted to the diaphragm to change the volume inside the casing and to perform air suction, compression and discharge operations by opening and closing the valve.

[0003]

The conventional diaphragm method is a method in which a permanent magnet is fixed to the rod, vibration of the rod is transmitted to the diaphragm by fluctuation of the electromagnet, and air is compressed, but there are some drawbacks. The challenge is to solve this.

When the rod and the diaphragm vibrate, both are exposed, so that the vibration noise is large, the gravity load is generated when the rod moves left and right, the power consumption is large, and when the load is large, the electromagnet heats up. Also increases, and the phenomenon of magnetic force drop occurs.

[0005]

The linear air pump of the present invention is a high-performance pump with extremely small power consumption because the diaphragm 4 and the permanent magnets 5 and 6 directly vibrate.
The drive sound is vibrated by the diaphragm, the permanent magnets 5 and 6, and the electromagnets 10 and 11 in the casing 12, and is designed with a soundproof and airtight structure. As a measure against the vibration of the pump, the rod that becomes the vibration element is omitted and the diaphragm 4
Both sides of permanent magnets 5 and 6 are also used at the same time, and the design was done with the aim of measures for low load and low noise.

[0006]

EXAMPLE In FIG. 1, an AC power supply is turned on, and a magnetic force action is generated in the electromagnets 10 and 11 facing the permanent magnets 5 and 6, and attraction and repulsion forces are generated between the two magnets. 6 vibrates left and right. The diaphragm 4 and the permanent magnets 5 and 6 vibrate with the magnetic force direction changing at the same frequency as the power supply. Volume change on both sides of the casing set 12 and valves 3, 8
By the action of, air suction, compression and discharge are performed.

An alternating current is passed through the left and right electromagnetic coils 7. The electromagnet N pole 10 and the permanent magnet N pole 5 repel each other and press each other. The volume of the side surface of the permanent magnet N pole 5 becomes large and the discharge valve 8
Is closed, the suction valve 3 is opened, and the suction action occurs. The permanent magnet south pole 6 is attracted to the electromagnet north pole 11 and attracts each other. The volume of the side surface of the permanent magnet S pole 6 becomes smaller and the suction valve 3
Is closed, the discharge valve is opened, and the discharge action occurs.

Next, the polarity of the current changes and the direction of the magnetic force of the electromagnet also changes. The electromagnet S pole 11 and the permanent magnet S pole 6 repel each other and press each other. The volume of the side surface of the S pole 6 of the permanent magnet increases, the discharge valve 8 is closed, the suction valve 3 is opened, and the suction action occurs. The permanent magnet N pole 5 is attracted to the electromagnet S pole 11 and attracts each other. The volume of the side of the permanent magnet N pole 5 becomes smaller, the suction valve 3 is closed, the discharge valve is opened, and the discharge action occurs. By repeating such magnetic action, air ejection continues.

[0009]

EFFECTS OF THE INVENTION The conventional air pump has
It has been common to say that power consumption is high. However, the linear air pump of the present invention is designed in consideration of this point, aiming at energy saving, low noise, low vibration, and reduction in size and weight. Maintenance can be done easily and effortlessly, and the casing set and other parts can be easily replaced.

[Brief description of drawings]

[Figure 1] Plan view of the linear air pump.

[Fig. 2] This is a plan view of the casing set.

[Fig. 3] Plan view of the air guide.

[Explanation of symbols]

 1 Discharge port 2 Air hole 3 Suction valve 4 Diaphragm 5 Permanent magnet N pole 6 Permanent magnet S pole 7 Electromagnetic coil 8 Discharge valve 9 Discharge port 10 Electromagnet 11 Electromagnet 12 Casing set 13 Air guide 14 Assembly screw hole 15 Assembly screw

Claims (1)

[Claims] 1. A permanent magnet, an N pole plate 5 and an S pole plate 6 are fixed back-to-back and integrated in the center of the diaphragm, and the electromagnets 11 and 12 are attached so as to face the permanent magnets 5 and 6, and The magnetic force direction of 12 is toward the permanent magnets 5 and 6 and has the same polarity. As shown in FIG. 2, the suction valve 3 and the discharge valve 8 are attached to an outer frame that surrounds both sides of the diaphragm 4 and the permanent magnets 5 and 6 to form a casing set.
2, the air guide 13 is assembled and hermetically sealed, and both side surfaces of the casing set 12 are simultaneously moved to perform suction, compression and discharge operations.