JPH06221272A - Electro-magnetic blower - Google Patents

Abstract

PURPOSE:To reduce the discharge flow variation of air regardless of change of load pressure on the side where air discharged from an electro-magnetic blower flows in. CONSTITUTION:An electro-magnetic blower is so constructed that a permanent magnet 11 is fitted to a vibrator frame 8 where a center disc 9 connected to a diaphragm 7 of diaphragm chambers 5, 6 for forming pumps 19, 20 is mounted, and an electromagnet for causing magnetic attraction and repulsion to and from the permanent magnet 11 is disposed in a position confronting with the magnetic pole surface of the permanent magnet 11, whereby the vibrator frame 8 is reciprocated to operate the diaphragm 7 of the diaphragm chambers 5, 6, so that air is discharged to the outside through an air tank 23 and a discharge port 24. An orifice 30 for setting the interior pressure of the pumps 19, 20 near the normal pressure is provided on the discharge port 24 (or the air tank 23), whereby even if the load pressure on the air blow side changes, the fluctuation of discharge flow of air is restrained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic blower for sending air under pressure to a septic tank, live fish tank, etc.

[0002]

2. Description of the Related Art Conventionally, an electromagnetic blower -1 for sending air under pressure to a septic tank, a live fish tank, or the like is constructed as shown in a side sectional view of FIG. 6 and a plan view of FIG.
Incidentally, FIG. 7 shows the cover-2 and the filter cover shown in FIG.
4 is a plan view with 4 removed. FIG. As shown in FIGS. 6 and 7, the diaphragm chambers 5 and 6 are arranged at symmetrical positions, and the diaphragms 7 mounted in the respective diaphragm chambers 5 and 6 are centered at both ends of the vibrator frame 8.
It is connected to the disc 9. Further, the outer peripheral edge 7A of the diaphragm 7 is fixed to the respective diaphragm chambers 5 and 6.

Permanent magnets 10 and 11 are attached to the upper and lower two places on the left side of the oscillator frame 8 in the drawing, and permanent magnets 12 and 13 are attached to the upper and lower two places on the right side. There is. On both sides of the oscillator frame 8, permanent magnets 10, 11, 1
Permanent magnets 10, 11, 1 facing the magnetic pole faces 2, 13,
Electromagnets 14 and 15 for attracting or repulsing 2 and 13 and reciprocating the oscillator frame 8 left and right are provided.

The electromagnets 14 and 15 each have a core 16
A coil 17 is wound around the permanent magnet 1 and is excited by electric power supplied from an external commercial power source through a plug P and a power cord PC, and corresponds to the frequency of the commercial power source.
The magnetic pole surface facing the magnetic pole surface of 0, 11, 12, 13 is N
The magnetic poles and the S poles are alternately excited. The electromagnets 14 and 15 are attached to the upper surface of a core pedestal 18 formed in a concave shape with a steel plate or the like.
The diaphragm chamber 5 and the pump 19 are integrally attached to the left outer side surface of the
The diaphragm chamber 6 and the pump 20 are integrally attached to the right outer surface of the.

An air pipe 21 is connected to the pump 19, while an air pipe 22 is connected to the pump 20, and the opposite ends of the air pipes 21 and 22 are connected to an air tank 23, respectively. Then, electric power from a commercial power source is supplied to the coils 17 of the electromagnets 14 and 15,
The vibrator frame 8 is reciprocally moved to the left and right, and the pumps 19 and 20 are
When the pump is operated, the air pumped from the pumps 19 and 20 is supplied to the external purifying tank, live fish tank, etc. through the air tank 23, the discharge port 24 and the hose (not shown).

[0006]

In the case of the conventional electromagnetic blower-1 having the above-mentioned structure, there is a problem that the discharge air volume greatly changes due to the pressure fluctuation of the load for discharging the air. That is, for example, since the indoor pressure of the pumps 19 and 20 changes depending on the water depth of the water tank, there is a problem that the discharge air flow rate (discharge air flow rate) greatly changes according to the pressure. Therefore, in the present invention, by providing an orifice in the air tank or the discharge port, it is possible to suppress the discharge flow rate of the air supplied to the external septic tank, live fish tank, etc., from fluctuating significantly even if the load pressure fluctuates. Is a technical issue to be solved.

[0007]

In order to solve the above-mentioned problems, the present invention solves the above-mentioned problems by using a permanent magnet in a vibrator frame having a center disk connected to the diaphragm of the diaphragm chamber constituting the pump attached to the end thereof. Is attached, while the permanent magnet and an electromagnet for magnetic attraction and repulsion are arranged at a position facing the magnetic pole surface of the permanent magnet, the oscillator frame is reciprocated to move the diaphragm of the diaphragm chamber. An electromagnetic blower that is operated to discharge air through the air tank and the discharge port is set to a state in which the room pressure of the pump is close to the normal pressure, and even if the load pressure on the air blowing side changes. An orifice is provided in the air tank or the discharge port to suppress the fluctuation of the discharge flow rate of the air.

[0008]

According to the electromagnetic blower having the above-mentioned structure, the air is discharged because the orifice for setting the chamber pressure of the pump close to the normal pressure is provided in the air tank or the discharge port, that is, the air discharge passage. The fluctuation of the discharge air flow rate is suppressed even if the pressure fluctuation of the load on the discharge side is large.

[0009]

EXAMPLES Next, examples of the present invention will be described. FIG. 1 is a side sectional view showing the structure of the first embodiment.
It should be noted that the electromagnetic blower-1A shown in FIG. 1 has the pump 1 at the inner diameter portion of the discharge port 24 of the conventional electromagnetic blower-1 described above.
An orifice 30 for setting the room pressures of 9 and 20 close to the normal pressure is mounted.

FIG. 2 is a side sectional view showing the structure of the second embodiment. In addition, the electromagnetic blower-1B shown in FIG.
The air passage of the air tank 23 of the above-mentioned conventional electromagnetic blower-1 is provided with an orifice 31 for setting the indoor pressure of the pumps 19, 20 to a state close to the normal pressure. Incidentally, FIG. 3 is a plan sectional view showing a state in which the orifice 31 is attached to the air passage of the air tank 23. As shown in FIG. 3, the inside of the air tank 23 is divided into four compartments, and the air pipe 2 is provided in the first compartment 23A.
The pumped air from the pump 19 is discharged via 1
The air passes through the first air passage AP1 and is discharged to the second partition 23B. On the other hand, the compressed air from the pump 20 is discharged to the third partition portion 23C through the air pipe 22, and the air passes through the second air passage AP2 and is discharged to the second partition portion 23B. .

Pump 1 discharged to the second partition 23B
The pressure-fed air from 9 and 20 passes through the orifice 31 mounted in the third air passage AP3, and the fourth partition 2
When it is discharged to 3D and further discharged from the fourth partition portion 23D to the outside through the discharge port 24, it is supplied to a septic tank, a live fish culture tank, etc. through a hose (not shown).

Next, FIGS. 4 and 5 show the comparison results of the characteristics of the electromagnetic blowers-1A and 1B and the conventional electromagnetic blower-1 tested. FIG. 4 is an electromagnetic blower-1A, 1 showing the relationship between the discharge air amount of air (air discharge flow rate) Q and the load pressure P2 corresponding to the water depth of the water tank (not shown).
FIG. 3B is a characteristic diagram of B and the conventional electromagnetic blower-1.
Further, FIG. 5 shows the electromagnetic blowers-1A and 1B showing the relationship between the indoor pressure P1 of the pumps 19 and 20 and the load pressure P2 corresponding to the water depth of the water tank (not shown), and the conventional electromagnetic blower. It is a characteristic diagram of 1.

As shown in FIG. 4, a conventional electromagnetic blower is used.
1 is the discharge air volume Q as the load pressure P2 increases.
While the electromagnetic blowers -1A and 1B according to the present invention have a characteristic that the load pressure P2 is zero, that is, even when the load pressure P2 becomes considerably high from the atmospheric pressure state, the discharge is performed. It has excellent characteristics that the air volume Q does not change significantly.

Therefore, the electromagnetic blower-1 according to the present invention
In the case of A and 1B, the discharge air volume Q corresponding to the normal pressure set for each water tank, septic tank, etc. used is controlled to be substantially constant even if the load pressure P2 changes.

Next, as shown in the characteristic diagram of FIG. 5, in the case of the electromagnetic blowers-1A and 1B according to the present invention, the load pressure P2
Even if the pressure changes, the indoor pressure P1 of the pumps 19 and 20 remains a slight change before and after the normal pressure as compared with the conventional electromagnetic blower-1. is doing.

[0016]

As described above, according to the present invention, a permanent magnet is attached to a vibrator frame having a center disk connected to the diaphragm of a diaphragm chamber constituting a pump at an end thereof, while a permanent magnet is attached to the vibrator frame. By disposing an electromagnet for magnetic attraction and repulsion with the permanent magnet at a position facing the magnetic pole surface of the permanent magnet, the oscillator frame is reciprocated, and the diaphragm of the diaphragm chamber is operated to generate air. In an electromagnetic blower that discharges to the outside through an air tank and a discharge port, the chamber pressure of the pump is set to a state close to a normal pressure, and even if the load pressure on the air blow side changes, Since the orifice for suppressing the fluctuation of the discharge air volume is provided in the air tank or the discharge port, the water depth of the septic tank, the live-fish live fish tank, etc. It turned into a predetermined flow rate of air even can be delivered stably in water.

[Brief description of drawings]

FIG. 1 is a side sectional view showing a configuration of a first embodiment of the present invention.

FIG. 2 is a side sectional view showing a configuration of a second embodiment of the present invention.

FIG. 3 is a plan sectional view showing a main part of a second embodiment.

FIG. 4 is a characteristic improvement explanatory diagram of a conventional electromagnetic blower and an electromagnetic blower according to the present invention.

FIG. 5 is another characteristic improvement explanatory view of the conventional electromagnetic blower and the electromagnetic blower according to the present invention.

FIG. 6 is a side sectional view showing a configuration of a conventional electromagnetic blower.

FIG. 7 is a plan view showing a configuration of a conventional electromagnetic blower.

[Explanation of symbols]

 1A, 1B Electromagnetic blower 5, 6 Diaphragm chamber 7 Diaphragm 8 Transducer frame 10,11 Permanent magnet 12,13 Permanent magnet 14,15 Electromagnet 19,20 Pump 21,22 Air pipe 23 Air tank 24 Discharge port 30 Orifice 31 Orifice

Claims (1)

[Claims] 1. A permanent magnet is attached to a vibrator frame having a center disk coupled to a diaphragm of a diaphragm chamber constituting a pump at an end thereof, while a permanent magnet is attached to the oscillator frame.
At the position facing the magnetic pole surface of the permanent magnet, an electromagnet for magnetic attraction and repulsion with the permanent magnet is arranged to reciprocate the oscillator frame to operate the diaphragm in the diaphragm chamber to move air. In an electromagnetic blower that discharges the air to the outside through an air tank and a discharge port, the chamber pressure of the pump is set to a state close to a working pressure, and the air pressure is changed even if the load pressure on the air blowing side changes. An electromagnetic blower characterized in that an orifice for suppressing fluctuations in the discharge flow rate of the air blower is provided in the air tank or the discharge port.