JP2001050164A - Electromagnetic diaphragm pump - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve durability as well as reduce power consumption of an electromagnetic diaphragm pump by performing a diaphragm in reciprocating motion in association with acting a vibration constituting means, and acting each diaphragm chamber disposed on both sides of the diaphragm as pump chambers respectively. SOLUTION: In an electromagnetic diaphragm pump 1, two pump chambers 11, 15 which are formed in the same structure are disposed opposing to each other through an electromagnetic stone 91. For example, in one pump chamber body 11, two diaphragm chambers 31, 32 are sectioned by a center diaphragm 41 and bulk heads 21, 22 disposed on both side of the diaphragm 41. In this case, for example, a vibration constituting means for vibrating one side of diaphragm 41 is constituted by assembling a permanent magnet 51 attached to a center of the diaphragm 41 and an electromagnetic stone 91 disposed opposing to the permanent magnet 51 through the bulkhead 22. The diaphragm 41 is performed in reciprocating motion in association with acting the vibration constituting means, and the diaphragm chambers 31, 32 are acted as pump chambers respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic diaphragm pump, and more particularly to a diaphragm pump utilizing a deformation of a diaphragm.
The present invention relates to an electromagnetic diaphragm pump that continuously discharges (discharges) compressed air by a change in volume in two diaphragm chambers divided into two chambers on the left and right sides by a diaphragm, and by the action of a valve substantially attached to each diaphragm chamber. Such an electromagnetic diaphragm pump, for example,
It is used for aeration of aeration type septic tanks, oxygen supply for fish farming, air blowing for bubble baths, small compressors, etc.

[0002]

2. Description of the Related Art Conventionally, an electromagnetic diaphragm pump has been used as one of pumps for aerating a septic tank or supplementing oxygen for fish farming.

FIG. 4 is a schematic diagram showing an example of such a conventional electromagnetic diaphragm pump. In order to facilitate understanding of the basic configuration and to make the specific operation easier to understand, FIG. 4 shows only a main part of the configuration (for example, a box-shaped electromagnet case). Etc. are omitted).

As shown in FIG. 4, in a conventional electromagnetic diaphragm pump 100, a connecting shaft 122 is fixed to a diaphragm 110, and a permanent magnet 13 is fixed to the connecting shaft 122.
By placing the vibrator 120 fixed at 1,135 in the magnetic field of the electromagnet 150 and applying an alternating current from the AC power supply 160 to change the magnetic poles, an attractive force and a repulsive force with the magnet are generated alternately, thereby connecting. Reciprocating motion of the shaft 122 (arrow
(A)-(A) directions) to vibrate the diaphragm (indicated by the dotted line in the figure). By such a method, the intake and exhaust of the air into the diaphragm chamber 170 are controlled by the intake valve 18.
1 and the exhaust valve 185 continuously.

[0005] As a structure similar to such a basic structure, (1) a vibrator is attracted by a magnetic force using a spring, and repulsion (return) is performed by a return spring to reciprocate; (2) a diaphragm. There are conventionally known ones which are installed only on one side, and (3) those which reciprocate by fixing a piston on a shaft instead of a diaphragm.

[0006]

However, in any of the above structures, since the vibration shaft is fixed to the diaphragm, the surface on the shaft side is not currently used as a pump chamber. By reviewing such a conventional structure, there has been a demand for a proposal of a new electromagnetic diaphragm pump which can reduce power consumption more than ever, and which has more excellent pump durability than ever before.

The present invention has been made in view of such circumstances, and its purpose is to reduce power consumption.
Another object of the present invention is to provide a novel electromagnetic diaphragm pump having excellent durability.

[0008]

In order to solve the above-mentioned problems, the present invention provides a disk-shaped diaphragm having elasticity, and a diaphragm formed on both sides of the diaphragm so as to sandwich the diaphragm. A pair of diaphragm chambers, and an intake valve and an exhaust valve substantially attached to the respective diaphragm chambers; a substantially central portion of the diaphragm; and an outer side of a partition wall of at least one of the diaphragm chambers. Vibration forming means for forming and vibrating the diaphragm;
Wherein the diaphragm reciprocates by applying the vibration constituting means, and the diaphragm chambers disposed on both sides of the diaphragm act as pump chambers.

In a preferred aspect of the present invention, the vibrating means is disposed so as to face the permanent magnet via a permanent magnet attached to a substantially central portion of a diaphragm and a partition wall of at least one of the diaphragm chambers. It is configured with an electromagnet.

[0010] In a preferred aspect of the present invention, the vibration constituting means is attached to a substantially central portion of the diaphragm, and has a rod-shaped permanent magnet protruding to one side and a partition wall of at least one diaphragm chamber. It has an electromagnet arranged so as to surround the magnet.

In a preferred aspect of the present invention, the vibration-constituting means includes a magnet-attractive core attached to a substantially central portion of a diaphragm and a partition of at least one of the diaphragm chambers. It is configured to include an electromagnet and a return spring that are arranged to face the body.

The present invention also provides a disk-shaped diaphragm having elasticity, a pair of diaphragm chambers formed on both sides of the diaphragm so as to sandwich the diaphragm, and a pair of diaphragm chambers partitioned by the diaphragm. Two pump chambers, each having an intake valve and an exhaust valve substantially attached to the chamber, are disposed opposite each other, and substantially the center of the diaphragm of each of the pump chambers and the partition walls of the opposed diaphragm chambers. And a vibration component means formed on the outside, wherein the diaphragm reciprocates by applying the vibration component means, and the diaphragm chambers disposed on both sides of each diaphragm are respectively provided. It is configured to act as a pump chamber.

[0013]

Embodiments of the present invention will be described below in detail.

FIG. 1 shows a first preferred embodiment of an electromagnetic diaphragm pump 1 according to the present invention. Note that FIG. 1 shows only the main parts of the configuration of the present invention in order to make it easier to understand the basic configuration of the electromagnetic diaphragm pump 1 and to make the specific operation easier to understand. (For example, description of a box-shaped electromagnet case and the like is omitted).

As shown in FIG. 1, an electromagnetic diaphragm pump 1 according to the present invention has two pump chambers 11 and 15 opposed to each other via an electromagnet 91. There is no necessity that two pump chambers 11 and 15 need to be installed on both sides, and at least one of them is sufficient for the configuration of the present invention.

As shown in FIG. 1, the pump chamber body 11 on one side has a disk-shaped diaphragm 41 having elasticity.
A pair of diaphragm chambers 31 and 32 partitioned by the diaphragm 41 are formed by container-shaped diaphragm partitions 21 and 22 formed on both sides of the diaphragm 41 so as to sandwich the diaphragm 41.

In each of the diaphragm chambers 31 and 32 (strictly speaking, the diaphragm partitions 21 and 22), a pair of intake valves 71 and an exhaust valve 73 and a pair of intake valves 72 and an exhaust valve 74 are formed, respectively. ing. Intake valve 7
Reference numerals 1 and 72 denote air from the outside in each of the diaphragm chambers 31 and 3.
The exhaust valves 73 and 74 are one-way valves that can exhaust (discharge) the air in the diaphragm chambers 31 and 32 to the outside.

A pair of center plates 6 fixed to the diaphragm 41 are provided at the center of the diaphragm 41.
The permanent magnet 51 is fixed via the first and the second 62. As shown, the right side of the permanent magnet 51 has an N pole, and the left side of the figure has an S pole.

The other pump chamber 15 has substantially the same structure as the pump chamber 11 described above. That is, FIG.
As shown in FIG. 2, the pump chamber body 15 is formed by an elastic disk-shaped diaphragm 45 and container-shaped diaphragm partitions 25 and 26 formed on both sides of the diaphragm 45 so as to sandwich the diaphragm 45.
A pair of diaphragm chambers 3 partitioned by the diaphragm 45
5, 36 are formed.

In each of the diaphragm chambers 35 and 36 (strictly speaking, the diaphragm partitions 25 and 26), a pair of intake valves 75 and an exhaust valve 77 and a pair of intake valves 76 and an exhaust valve 78 are formed, respectively. ing. Intake valve 7
Reference numerals 5 and 76 denote air from the outside in each of the diaphragm chambers 35 and 3.
The exhaust valves 77 and 78 are one-way valves that can exhaust (discharge) the air in the respective diaphragm chambers 35 and 36 to the outside.

A pair of center plates 6 fixed to the diaphragm 45 are provided at the center of the diaphragm 45.
The permanent magnet 55 is fixed via the reference numerals 5 and 66. As shown in the figure, the permanent magnet 55 has an N pole on the right side of the drawing and an S pole on the left side of the drawing.

An electromagnet 91 is interposed between the two pump chambers 11 and 15 which are thus arranged to face each other. The electromagnet 91 includes a rod-shaped magnetic core 91 a that can be a magnet, a coil 91 b wound around the magnetic core 91 a, and a coil 9.
1b. Then, when an AC is applied by the AC power supply, both ends of the rod-shaped magnetic core 91a alternately change from N pole to S pole.

One end of the rod-shaped core 91a is
The permanent magnet 51 is disposed opposite to the permanent magnet 51 via the diaphragm partition 22, and the other end of the rod-shaped magnetic core 91 a is disposed opposite to the permanent magnet 55 via the diaphragm partition 26.

In some cases, the electromagnet 91 may be constituted by only the winding coil 91b without providing the magnetic core 91a.

In the embodiment shown in FIG. 1, the vibrating means for vibrating the diaphragms 41 and 45 includes a permanent magnet 51 attached to a substantially central portion of the diaphragm 41.
And the electromagnet 91 disposed opposite to the permanent magnet 51 via the partition 22 of the diaphragm chamber 32, and the permanent magnet 55 attached to the approximate center of the diaphragm 45 and the partition 26 of the diaphragm chamber 36. Through,
This is a combination of the permanent magnet 55 and the electromagnet 91 disposed to face. If only one pump chamber body is provided (for example, only the pump chamber body 11), the vibration constituting means includes the permanent magnet 51 attached to the approximate center of the diaphragm 41 and the partition wall 22 of the diaphragm chamber 32. , Only the combination of the permanent magnet 51 and the electromagnet 91 disposed opposite to each other.

With the structure shown in FIG.
When the AC is applied to the diaphragm, the magnetic force is alternately attracted and repelled, and the diaphragms 41 and 45 spread outward (stroke positions S1 and S4) or approach each other toward the center (stroke position S2). And S3) repeating the exercise. In the drawing, the portion indicated by the dotted line schematically illustrates the vibration state of the diaphragms 41 and 45, and is indicated by the stroke width D. In the case of the present invention, the strokes of the diaphragms 41 and 45 may be a combination of the stroke positions S1 and S3 and the stroke positions S2 and S4. Also,
The intake and exhaust valves arranged in each diaphragm chamber are
Care must be taken not to block the magnetic field between the permanent magnet and the electromagnet.

As described above, in the present invention, the diaphragm is caused to make a stroke (reciprocating) motion by operating the vibration constituting means including the electromagnet, and the diaphragm chambers 31, 32, 35, and 36 disposed on both sides of the diaphragm respectively. It is configured to act as a pump chamber. In the present invention, since the two sides of the diaphragm are used as pump chambers, respectively, the discharge amount (displacement amount) is almost twice as large as the conventional one-side pump chamber structure (for example, FIG. 4) with the same stroke. Obtainable. In other words,
A discharge amount (displacement amount) equivalent to that of the conventional one-sided pump chamber can be obtained with a conventional stroke of １ ／, so that the power consumption is reduced and the durability of the pump is significantly improved.

It should be noted that the air exhausted from the exhaust valves 73, 74, 77, 78 is generally integrated into the same flow path, and is generally integrated into a single line to be used as supply air.

FIG. 2 shows a second embodiment of the electromagnetic diaphragm pump 2 of the present invention. The difference between the embodiment shown in FIG. 2 and the embodiment shown in FIG. 1 lies in the configuration of the vibration configuration means. That is, in the embodiment of FIG. 2, an electromagnet 92 and an electromagnet 93 are additionally provided on the left and right sides of the drawing, respectively, and the vibrating means for vibrating the diaphragms 41 and 45 is a permanent member attached to a substantially central portion of the diaphragm 41. The magnet 51 and the diaphragm chamber 3
Combinations of the permanent magnet 51 and the electromagnets 91 and 92 opposed to each other via the partition walls 21 and 22 of the diaphragms 32 and the permanent magnet 55 attached to a substantially central portion of the diaphragm 45 and the diaphragm chambers 35 and 36 Partition walls 25, 2
6, the electromagnet 9 opposed to the permanent magnet 55
1,93. Electromagnet 92
When installing the electromagnet 93, the diaphragm 4
It is necessary to pay attention to the setting of the magnetic poles (winding direction of the coil) so as not to hinder the movement of the coils 1 and 45. In the embodiment shown in FIG. 2, the diaphragm 4
The driving force of 1,45 can be further enhanced. 1 that are the same as those in FIG. 1 indicate the same members.

FIG. 3 shows a third embodiment of the electromagnetic diaphragm pump 3 of the present invention. The main difference between the embodiment shown in FIG. 3 and the embodiment shown in FIG. 1 lies in the configuration of the vibration configuration means. That is, in the embodiment shown in FIG. 3, the permanent magnet is attached to a substantially central portion of the diaphragm 41 and protrudes to one side via a rod-shaped permanent magnet 57 and the diaphragm partition 21 'of the one diaphragm chamber 31'. It is configured to have an electromagnet 94 arranged so as to surround the periphery of 57. In this case, the electromagnet 94 is in the form of only a winding coil. However, the electromagnet 94 may be wound with a steel plate having a high magnetic permeability as a core. Also,
The diaphragm partition 21 ′ is provided with a so-called relief portion 21 a ′ that protrudes outward in a cylindrical shape so that the rod-shaped permanent magnet 57 can vibrate.
A winding coil is wound on a ′ to form an electromagnet 94.

In the embodiment shown in FIG. 3, the distance between the permanent magnet 57 and the electromagnet 94 can be reduced to a considerable distance, and the distance between the permanent magnet 57 and the electromagnet 94 can be kept constant even when reciprocating. , The driving force of the diaphragm 41 can be further enhanced. 1 that are the same as those in FIG. 1 indicate the same members. Further, although not shown in the drawings, a pump chamber body 11 'provided with a vibration configuration means.
Is formed so as to be a mirror image with respect to the line L, and an electromagnetic diaphragm pump having two pump chambers may be formed similarly to FIGS.

In the description of each of the above embodiments, the vibration-constituting means always includes the permanent magnet attached substantially at the center of the diaphragm. A suction core body may be used.
In this case, a so-called "return spring" is required in addition to the electromagnet arranged to face the permanent magnet and further to release the suction and push back the diaphragm.

[0033]

The present invention provides a disk-shaped diaphragm having elasticity, a pair of diaphragm chambers formed on both sides of the diaphragm so as to sandwich the diaphragm, and a pair of diaphragm chambers partitioned by the diaphragm. An intake valve and an exhaust valve substantially mounted to the chamber, respectively, and a substantially central portion of the diaphragm;
And vibration configuration means formed outside the partition of at least one of the diaphragm chambers, for vibrating the diaphragm, comprising: an electromagnetic diaphragm pump, wherein the diaphragm performs a reciprocating motion by operating the vibration configuration means. Then, since the diaphragm chambers arranged on both sides thereof are configured to act as pump chambers, respectively, the discharge is almost twice as large with the same stroke as compared with the conventional one-side pump chamber structure (for example, FIG. 4). Volume (displacement) can be obtained. In other words, a discharge amount (displacement amount) equivalent to that of the conventional one-sided pump chamber can be obtained with a stroke that is 1/2 of the conventional one, so that the power consumption is reduced and the durability of the pump is significantly improved.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing a first preferred embodiment of an electromagnetic diaphragm pump of the present invention.

FIG. 2 is a schematic configuration diagram showing a second preferred embodiment of the electromagnetic diaphragm pump of the present invention.

FIG. 3 is a schematic configuration diagram showing a third preferred embodiment of the electromagnetic diaphragm pump of the present invention.

FIG. 4 is a schematic configuration diagram of a conventional electromagnetic diaphragm pump.

[Explanation of symbols]

 1, 2, 3 ... electromagnetic diaphragm pump 41, 45 ... diaphragm 31, 31 ', 35 ... diaphragm chamber 21, 21', 22, 25, 26 ... diaphragm partition 51, 55, 57 ... permanent magnets 91, 92, 93 , 94… electromagnet

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[Procedure amendment]

[Submission Date] May 18, 2000 (200.5.1)
8)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

Claims (5)

[Claims] 1. A disk-shaped diaphragm having elasticity, a pair of diaphragm chambers formed on both sides of the diaphragm so as to sandwich the diaphragm, and partitioned by the diaphragm, and each of the diaphragm chambers An intake valve and an exhaust valve which are substantially attached; and a vibration configuration means formed substantially at the center of the diaphragm and outside a partition wall of at least one of the diaphragm chambers, and configured to vibrate the diaphragm. An electromagnetic diaphragm pump, characterized in that the diaphragm reciprocates by applying the vibration constituting means, and the diaphragm chambers disposed on both sides of the diaphragm act as pump chambers. . 2. The vibration forming means includes a permanent magnet attached to a substantially central portion of a diaphragm, and an electromagnet arranged to face the permanent magnet via a partition wall of at least one of the diaphragm chambers. The electromagnetic diaphragm pump according to claim 1. 3. The vibration constituting means is attached to a substantially central portion of a diaphragm, and has a rod-shaped permanent magnet protruding to one side and a partition wall of at least one of the diaphragm chambers.
2. The electromagnetic diaphragm pump according to claim 1, comprising an electromagnet arranged to surround the permanent magnet. 3. 4. An electromagnet disposed opposite to the magnet attracting core body via a magnet attracting core body attached to a substantially central portion of a diaphragm and at least one diaphragm chamber partition wall. The electromagnetic diaphragm pump according to claim 1, wherein the electromagnetic diaphragm pump is configured to have a return spring. 5. A disk-shaped diaphragm having elasticity, a pair of diaphragm chambers formed on both sides of the diaphragm so as to sandwich the diaphragm, and partitioned by the diaphragm, and each of the diaphragm chambers. Two pump chambers having a suction valve and an exhaust valve substantially attached to each other, and are formed substantially at the center of the diaphragm of each of the pump chambers and outside the partition walls of the opposed diaphragm chambers. An electromagnetic diaphragm pump comprising: a diaphragm configured to act as the pump chamber, wherein the diaphragm reciprocates by applying the vibration configuring means, and the diaphragm chambers disposed on both sides of each diaphragm act as pump chambers. An electromagnetic diaphragm pump characterized by being made.