JPH0472478A - vibrating pump - Google Patents

Abstract

PURPOSE:To reduce the number of parts so as to simplify the structure of a pump by inserting a magnet vibrator into a gap between a bottomed outer cylinder and an inner cylinder, and further disposing an electromagnetic coil in the gap. CONSTITUTION:A magnet vibrator 6 formed of a radially magnetic cylindrical magnetic 8 mounted on the peripheral surface of a bell-shape frame 7 is inserted into a gap 4 between an outer cylinder 1 formed of a bottomed cylindrical body and an inner cylinder 3 disposed in the outer cylinder 1. A diaphragm 10 is also fitted in the axial direction of the magnet vibrator 6 so as to support the magnet vibrator 6. A cylindrical electromagnetic coil 5 is further disposed inside the gap 4, in a position opposed to the cylindrical magnet 8. The electromagnet can be thereby used as the frame, so that the number of parts is reduced, and the structure of a pump can be simplified.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a vibration pump. More specifically, the present invention relates to a vibration type pump having a small number of parts and a simple structure. The pump of the present invention can be used as a low-pressure pump for septic tanks, fish farming,
It can be applied to fields that supply air and water, such as for physics and chemistry.

[Prior Art and Problems to be Solved by the Invention] Conventionally, vibrations have been developed that are based on magnetic interaction between an electromagnet and a permanent magnet, and utilize vibrations of a vibrator equipped with the permanent magnet to attract and discharge fluid. A pump of the type shown in FIG. 4 is generally used.

The pump shown in Figure 4 has an E-type iron plate laminated core (51).
Two electromagnets (52) completed by winding coils are installed facing each other on the iron frame (53), and permanent magnets are placed in the three working gaps formed between the two electromagnets (52). (
A vibrator (55) equipped with a rubber diaphragm (
56).

The vibrator (55) is moved from side to side (in FIG. 4) by the attractive and repulsive force between the working air gap magnetic flux and the permanent magnet, which is generated in response to the commercial alternating voltage applied to the electromagnet (52).
vibrates. The pump compression chamber (57) responds to the displacement of the diaphragm (56) corresponding to the vibration of the vibrator (55).
The volume of the pump changes, which creates a pumping action that pumps or draws fluid.

However, the conventional pump has an electromagnetic structure (5
2) and the iron frame (53) cannot be used together, resulting in a disadvantage that the number of parts increases and the structure is complicated.

SUMMARY OF THE INVENTION In view of the above-mentioned problem, an object of the present invention is to provide a vibratory pump that can simplify the structure by reducing the number of parts as much as possible without degrading the functions and characteristics of the pump body. shall be.

[Means for Solving the Problems] The vibration pump of the present invention comprises: (an outer cylinder made of an ω-bottomed cylinder; (11) an inner cylinder arranged coaxially with the outer cylinder within the outer cylinder; c) a magnetic vibrating body which is inserted into the gap between the outer cylinder and the inner cylinder and has a radially magnetized cylindrical magnet attached to the outer peripheral surface of a bell-shaped frame, and a curved magnetic vibrating body; a diaphragm attached in the central axis direction of the magnet vibrating body for support; and (e) a cylindrical electromagnetic coil disposed within the gap between the outer cylinder and the inner cylinder and at a position facing the cylindrical magnet. (a) an outer cylinder made of a cylindrical body with a bottom; (b) an inner cylinder disposed coaxially with the outer cylinder within the outer cylinder; and (c1 provided in the gap between the outer cylinder and the inner cylinder). (
d) a magnetic vibrating body in which cylindrical magnets magnetized in the radial direction are attached to a bell-shaped frame in the same number as the cylindrical electromagnetic coil; and (e) a magnetic vibrating body configured to support the magnetic vibrating body. the electromagnetic coil is arranged such that its outer circumferential surface is in contact with the inner circumferential surface of the outer cylinder, and the magnetic vibrating body is configured such that the cylindrical magnet It is characterized by being inserted into the gap between the outer cylinder and the inner cylinder so as to face the inner circumferential surface through the gap.

[Embodiment] Hereinafter, the vibration type pump of the present invention will be explained in detail based on the accompanying drawings.

FIG. 1 is a schematic explanatory diagram of an embodiment of a vibration type pump related to the first invention, FIG. 2 is a schematic explanatory diagram of an embodiment of a vibration type pump related to the second invention, and FIG. FIG. 3 is a schematic explanatory diagram of another embodiment of the vibration type pump according to the invention.

First, a pump according to a first aspect of the present invention will be described.

In FIG. 1, (1) is an outer cylinder made of a thin cylindrical body having a bottom part (2), which is formed from an iron plate having a thickness of about 1 to 2II11. Inside the outer cylinder (1), an inner cylinder (3) also made of a thin cylindrical body is arranged coaxially with the outer cylinder (1). A cylindrical electromagnetic coil (5) wound with copper wire or the like is disposed within the gap (4) between the outer cylinder (1) and the inner cylinder (3).

(6) is a magnetic vibrating body having a structure in which a radially magnetized cylindrical magnet (8) is attached to the outer periphery of a bell-shaped frame (7). A portion of this magnetic vibrating body (6) is inserted into the gap (4) between the outer cylinder (1) and the inner cylinder (3). Although the cylindrical magnet (8) shown in FIG. 1 is magnetized with an N pole on the inside and an S pole on the outside, it is of course possible to use a magnet magnetized in the opposite direction.

A ferrite magnet, a rare earth magnet, or the like can be used as the cylindrical magnet (8).

The magnetic vibrating body (6) is connected to a diaphragm M made of EPDM or the like through a center plate (9), and the magnetic vibrating body (6)
is supported. The center plate (9) is provided on both sides of the diaphragm.
) is an element that pushes and pulls to displace it up and down (in Fig. 1). The magnetic vibrating body (6) is fixed to the diaphragm by a bolt and a nut via a seat 01).

The diaphragm (outer peripheral end 04 of 101) is connected to the outer cylinder (1)
The pump casing is fitted with a diaphragm stand 6 made of PBT or the like which is fixed to the extension part of the pump with bolts. Diaphragm (K)) and pump casing
The recess □ forms the pump compression chamber mouth. The pump casing □□□ further has a suction chamber OF3 and a discharge chamber (to). The suction chamber □□□ has a suction port ■ and a suction valve (211), and the discharge chamber U has a A tube (not shown) or the like is connected to the discharge port.The suction valve (21) and the discharge valve are connected to the first
In addition to the labial valve shown in the figures, other types of valves can also be employed, such as, for example, circular valves.

The pump casing is made of PBT or the like, and in the embodiment shown in Figure 1, it is fixed to the extension of the outer cylinder (1) with bolts together with the diaphragm mating.
It may be fixed using an adhesive.

In the embodiment shown in FIG. 1, a spring Q4 is disposed inside the cylinder (3). The spring Q4 plays a role in improving the vibration efficiency of the magnet vibrator (6). In other words, due to the magnetism and the structure of the magnetic path, the attractive force is greater than the repulsive force, but the spring Q4 stores a part of the energy during attraction, and releases this stored energy during repulsion. This allows for effective use of energy and increases vibration efficiency. Further, by adjusting the spring constant of the spring Q4, the frequency of the power source and the natural frequency of the pump movable part can be synchronized, so that the pump output can also be increased by this.

Further, by providing a housing (42) outside the pump casing (G) so as to cover the pump casing, it is possible to reduce noise caused by suction and discharge of fluid.

In the embodiment shown in FIG. 1, the housing (42) serves both as a pump outer casing and as a muffling tank, helping to reduce the number of parts.

Next, the operation of the embodiment shown in FIG. 1 will be briefly explained.

When an alternating current is passed through the electromagnetic coil (5), the outer tube (1) and the inner tube (3) are magnetized to either the north pole or the south pole periodically as the alternating current changes. Figure 1 shows that the outer cylinder (1) is the N pole and the inner cylinder (3
) is magnetized to the south pole. At this time, the outer part of the cylindrical magnet (8) and the outer cylinder (1), and the inner part of the cylindrical magnet (8) and the inner cylinder (3) attract each other, and the magnet vibrating body (6) moves as shown by the arrow. Moving downward in FIG. 1 as shown.

The diaphragm 00) also moves downward in conjunction with the movement of the magnet vibrating body (6), and fluid such as air is sucked into the pump compression chamber 00). Next, when the polarity of the AC power source is reversed, the polarity of the outer tube (1) and the inner tube (3) becomes opposite to the previous one, so the magnet vibrating body (6) is repelled and moves upward, causing the diaphragm (toe) to move upward. )) push up. As a result, the fluid sucked into the air compression chamber mouth is discharged from the discharge chamber. In this way, the volume of the pump compression chamber surface changes due to the vibration (displacement) of the diaphragm η, and fluid such as air or water is sucked in or discharged.

Next, a pump according to a second aspect of the present invention will be described.

The pump shown in FIG. 2 uses as an electromagnetic coil (31) a coil wound in a cylindrical shape within an annular magnetic pole (32) having a substantially U-shaped cross section. This electromagnetic coil (31) is arranged so as to be in contact with the inner circumferential surface of the outer tube (33). The electromagnetic vibrating body (34) is inserted into the gap between the outer tube (33) and the inner tube (36) so that the cylindrical magnet (35) faces the inner peripheral surface of the electromagnetic coil (31) across the gap. It has been inserted.

In this manner, the embodiment shown in FIG. 2 has a configuration in which there are two locations in the axial direction that are attracted or repelled. Therefore, the pump pressure or output can be increased compared to the embodiment shown in FIG. 1 (first invention).

Further, since the pump shown in FIG. 2 can substantially balance suction force and repulsive force, it is not necessary to provide a spring as in the pump shown in FIG. 1. However, when a spring is provided, there is an advantage that the tuning frequency can be easily adjusted.

The magnet vibrating body (34) is supported only on one side by the diaphragm (37) and is unstable, so when vibrating, the cylindrical magnet (35) and the annular magnetic pole (32) or the bell-shaped frame (38) There is a habit of contact with the inner cylinder (36), which causes wear and noise. For this reason, the inner cylinder (36)
Preferably, a cylindrical sliding bearing is provided on the outside of the bell-shaped frame (38) or inside the bell-shaped frame (38).

Furthermore, a valve (4o) is installed at the bottom (39) of the outer cylinder (33).
It is preferable to provide a pump, extract the air pressure that is in the opposite phase to the air pressure generated by the pump body during operation, and synthesize and mix both air pressures, thereby making it possible to approximately double the pump flow rate. In addition, by guiding the output air to the housing (47) with the vibrator (41), the silencing effect can be increased.

In the embodiment shown in FIG. 3, two cylindrical magnets (45) are attached to a bell-shaped frame (44), and correspondingly two electromagnetic coils (46) are also provided. Therefore, the output can be further increased compared to the embodiment shown in FIG. Although not shown,
It is also possible to provide three or more sets of cylindrical magnets and electromagnetic coils.

The operation of the pump shown in FIGS. 2 and 3 is basically the same as that shown in FIG. 1. For example, in the state shown in FIG. ), and when the polarity is opposite, it moves upward to suck in and discharge fluid.

[Effects of the Invention] As explained above, the pump of the present invention has the effect that the number of parts can be reduced and the structure of the pump can be simplified. As a result, the manufacturing process becomes simpler, and together with the reduction in material costs, it is possible to reduce the cost of the product.

[Brief explanation of the drawing]

FIG. 1 is a schematic explanatory diagram of an embodiment of a vibration type pump related to the first invention, FIG. 2 is a schematic explanatory diagram of an embodiment of a vibration type pump related to the second invention, and FIG. FIG. 4 is a schematic explanatory diagram of another embodiment of the vibration type pump according to the invention, and FIG. 4 is a schematic explanatory diagram of a conventional vibration type pump. (Main symbols in the drawing) (1), (33): Outer cylinder (3), (3B): Inner cylinder (5), (31), (46): Electromagnetic coil (6), (
34): Magnet vibrator (7, (38), (44): Bell-shaped frame (8),
(35), (45): Cylindrical magnet (roll), diaphragm (c) Pump casing Figure 2 Figure 3 Figure 4

Claims (1)

[Scope of Claims] 1(a) an outer cylinder made of a cylindrical body with a bottom; (b) an inner cylinder arranged coaxially with the outer cylinder within the outer cylinder; and (c) a combination of the outer cylinder and the inner cylinder. (d) a magnetic vibrating body including a cylindrical magnet inserted in the air gap and radially magnetized and attached to the outer peripheral surface of a bell-shaped frame; (d) the magnetic vibrating body to support the magnetic vibrating body; (e) a cylindrical electromagnetic coil disposed within the gap between the outer cylinder and the inner cylinder and facing the cylindrical magnet. Vibratory pump. 2 (a) an outer cylinder made of a cylindrical body with a bottom; (b) an inner cylinder disposed coaxially with the outer cylinder within the outer cylinder; and (c) an inner cylinder disposed within the gap between the outer cylinder and the inner cylinder. (d) at least one cylindrical electromagnetic coil having a coil wound in a cylindrical shape within an annular magnetic pole having a substantially U-shaped cross section; (d) a cylindrical magnet magnetized in a radial direction; (e) a diaphragm attached in the central axis direction of the magnetic vibrating body to support the magnetic vibrating body; The coil is arranged so that its outer peripheral surface is in contact with the inner peripheral surface of the outer cylinder, and the magnetic vibrating body is arranged with the outer cylinder so that the cylindrical magnet faces the inner peripheral surface of the electromagnetic coil with an air gap in between. A vibrating pump characterized by being inserted into the cavity of an inner cylinder. 3. The pump according to claim 1 or 2, further comprising a cylindrical slide bearing provided outside the inner cylinder or inside the frame of the magnetic vibrating body. 4. Claim 1, wherein a valve is provided at the bottom of the outer cylinder, and is configured to take out air pressure that is in the opposite phase to the air pressure generated by the pump body during operation, and synthesize and mix both air pressures.
, 2 or 3. 5. The pump according to claim 1, 2, 3 or 4, further comprising a housing provided outside the pump casing constituting the air chamber so as to cover the pump casing. 6. The pump according to claim 1 or 2, wherein a spring is disposed inside or outside the inner cylinder.