KR100216197B1 - Magnet type diaphragm pump - Google Patents

Abstract

The present invention relates to a magnetized diaphragm pump for driving a diaphragm using a plurality of magnets suitably arranged therein for employing a contactless and continuous pumping method.

According to the present invention, the diaphragm 26 is hermetically mounted along the outer circumferential surface of the pump housing 21 by the diaphragm fixing plate 27: the driven plate 24 mounted on the lower surface of the diaphragm 26: Drive plate 14 mounted on the drive shaft 13 while maintaining a constant distance from the driven plate 24: mounted on the driven plate 24 and the drive plate 14, respectively, the upper and lower pistons of the diaphragm 26 Pumping means for causing the movement: and the suction valve 22 and the discharge valve 23 which are respectively mounted near the inlet port 21a and the outlet port 21b of the housing 21 and perform the opening and closing action by the pressure difference between both sides. ).

Accordingly, since it is possible to pump continuously by inducing a piston movement of the diaphragm at the same time in a non-contact manner, there is an effect of increasing the life of the related parts and the pump and reducing the noise caused by the operation.

Description

Magnetic diaphragm pump

The drawings show one embodiment of the invention,

1 is an exemplary view showing the internal structure of the pump,

2 is a perspective view showing the arrangement of the driving magnet of FIG.

* Explanation of symbols for main parts of the drawings

10: motor assembly 11, 21: housing

12: rotor permanent magnet 13: drive shaft

14: drive plate 15: drive magnet

15: bearing 17: flange

20: pump assembly 21a: inlet

21b: outlet 22: suction valve

23: discharge valve 24: driven plate

25: driven magnet 26: diaphragm

27: diaphragm fixing plate 28: fixed shaft

N, S: Stimulation

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnet diaphragm pump, and more particularly to a magnet diaphragm pump for driving a diaphragm using a plurality of magnets suitably disposed therein for employing a non-contacting and continuous pumping method.

In general, a diaphragm pump (also called a diaphragm pump) performs a pumping operation of a fluid by moving a diaphragm made of a flexible material up and down, and the movement force is a motor that generates rotational force and converts the rotational force into a vertical piston movement. It is received by the cam mechanism.

At this time, the cam mechanism is not only formed by a relatively complicated mechanism such as cam and connecting rod, but also because the cam action is a contact movement, the operation noise is large due to the rotation of the pump, and the performance of the pump is reduced or the life is shortened due to cam mechanism wear. There are disadvantages that result. In particular, the more the piston portion which pumps the diaphragm to increase the capacity of the pump, the more this disadvantage is aggravated.

Therefore, an object of the present invention is to adopt a non-contact mechanism by a plurality of magnets instead of using a cam mechanism as a driving means of the diaphragm, and a magnet type that reduces operating noise while preventing pump performance and lifespan with a simplified internal configuration. It is to provide a diaphragm pump.

In order to achieve this object, the present invention provides a diaphragm 26 that is hermetically mounted along the outer circumferential surface of the pump housing 21 by the diaphragm fixing plate 27, and is mounted on the lower surface of the diaphragm 26. A diaphragm is mounted on the driven plate 24, the driving plate 14 mounted on the drive shaft 13 while maintaining a constant distance from the driven plate 24, the driven plate 24, and the driving plate 14, respectively. Pumping means for causing the up and down piston movement of (26), and the suction valve (22) mounted near the inlet (21a) and discharge port (21b) of the housing 21, respectively, and performs the opening and closing action by the pressure difference between both sides And it provides a magnet diaphragm pump comprising a discharge valve (23).

At this time, the pumping means are a plurality of drive magnets 15 mounted on a predetermined circumference on the upper side of the drive plate 14, and a plurality of driven magnets 25 mounted on a predetermined circumference below the driven plate 24 The driving magnets 15 and the driven magnets 25 are disposed to face each other on the same circumference, and the N poles and the S poles are alternately formed at equal intervals on opposite sides thereof. And the number of the suction port 21a and the suction valve 22 of the said housing 21 and the number of the said drive and driven magnets 15 and 25 are kept the same.

On the other hand, instead of mounting on the lower side of the diaphragm 26, the driven plate 24 may be mounted on the fixed shaft 28 so as to slide up and down.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

1 is an exemplary view showing an internal structure of a pump.

The diaphragm pump is largely divided into the motor assembly 10 and the pump assembly 20 and is integrally mounted. The former is a part for converting an electric force into a rotational force, and the latter is a part for transferring fluid with the rotational force.

The motor assembly 10 generates a rotational force in the drive shaft 13 by the rotor permanent magnet 12 mounted inside the housing 11, the drive shaft 13 is the upper through the upper bearing 16 Protrude into the housing 21 on the pump assembly 20 side.

The pump assembly 20 is a part for pumping a fluid by receiving a rotational force from the drive shaft 13 of the motor assembly 10, the diaphragm fixing plate 27 and the pump housing (on the flange 17 of the motor assembly 10) 21 is mounted to be airtight, and a drive plate 14, a diaphragm 26, a driven plate 24, a suction valve 22, a discharge valve 23, and the like are mounted therein.

The drive plate 14 mounted on the drive shaft 13 is formed in a disc shape having a cross-sectional shape of right and left symmetry, and the rotation balance is adjusted so as not to cause vibration at a normal rotational speed of 300 to 400 rpm of the drive shaft.

The diaphragm 25, which is disposed at a constant distance from the driving plate 14, is hermetically fixed to its outer peripheral surface by the pump housing 21 and the diaphragm fixing plate 27. The donut-shaped bent portion is formed on a predetermined winch of the diaphragm 26 so that the up and down piston movement is made, and the center thereof is fixed to the supporting portion so that sag does not occur. The driven plate 24 is attached to the lower surface of the bent part by bolt fastening.

In another embodiment, the driven plate 24 may be mounted on the fixed shaft 28 to be slidable up and down instead of being mounted on the lower surface of the diaphragm 26. In this case, it is preferable to mount a shock absorbing material (for example, a river cushion) on the upper and lower portions of the fixed shaft 28 to mitigate the impact caused by the vertical movement of the driven plate 24 and to remove the operation noise.

In this case, the driving magnet 15 and the driven magnet 25 are mounted on the driving plate 14 and the driven plate 24, respectively, to cause vertical piston movement of the diaphragm 26. The driving magnet 15 is recessed and mounted on a predetermined circumference at the upper surface of the driving plate 14, and the driven magnet 25 is circumferentially shaped with the driving magnet 15 at the lower surface of the driving plate 24. Mounted in recessed, the former is rotated with the drive plate 14 so that the rotational balance is maintained and the latter maintains the airtightness of the diaphragm 26 so that fluid does not flow into the motor assembly (10).

On the other hand, the vertical piston movement of the diaphragm 26 according to the present invention depends on the alternating attraction force and repulsive force of the driving magnet 15 and the driven magnet 25, so that the driving plate 14, longitudinal Bolts for fixing the copper plate 24 and the driven plate 24 is preferably made of a nonmagnetic material to prevent the balance between the attraction force and the repulsive force (actually increases the attraction force).

The pump housing 21 is formed with a connection portion (not shown) for connecting the back plate to the outside, and the suction port 21a and the discharge port 21b are formed therein. One discharge port 21b is located at the center, and a plurality of suction ports 21a are positioned around the discharge port 21b.

At this time, the intake valve 22 and the discharge valve 23 are mounted around the suction port 21a and the discharge port 21b, respectively, and these valves are easily stretched by the pressure difference between both sides as indicated by the double-dotted line in the figure. The inlet port 21a and the outlet port 21b are opened and closed to maintain the flow of fluid in one direction (arrow direction in the illustration).

2 is a perspective view showing the arrangement of the driving magnet of FIG.

The driving magnet 15 has a donut shape and N poles and S poles are alternately arranged. When four poles are mounted as shown in the drawing, the attraction force and the repulsive force of one point of the diaphragm 26 are changed four times according to one rotation of the driving shaft 13, thereby inducing two stroke piston movements.

The driving magnet 15 maintains a Gaussian value that can generate a manpower and repulsive force required with the driven magnet 25, and is arranged in a continuous annular shape such as urbanization or maintains a constant distance between poles. Can be placed intermittently.

A driven magnet 25 arranged on a constant circumference of the driven plate 24 is formed with the same Gaussian value and external dimensions as the driving magnet 15, and is located on the same circumference as the driving magnet 15. So that maximum attraction and repulsive force act in the vertical direction.

At this time, the driving magnet 15 and the driven magnet 25 are mounted so as to face each other with the same number of poles, and the number of poles is smoothly matched with the number of the inlets 21a (see FIG. 1). Preferred in terms of action. In this embodiment, four suction ports 21a are formed, and the same quantity of drive magnets 15 and driven magnets 25 are mounted at the same position as the suction valve 22 which opens and closes the suction ports 21a.

However, the quantity of the suction port 21a, the driving magnet 15, and the driven magnet 25 can be appropriately increased or decreased in consideration of the required discharge amount. In this case, the quantity must always be maintained in an even number so that the N pole and the S pole can be alternately mounted and mounted to ensure smooth up and down piston movement of the diaphragm 26.

The operation is described using FIGS. 1 and 2.

Since the driving magnet 15 rotated together with the drive shaft 13 and the driven magnet 25 fixed on the driven plate 24 are all formed in four poles, the opposite polarity is changed every 1/4 rotation. At the moment when the other magnets face each other during rotation of the driving magnet 15, the attraction force of the driven magnet 25 lowers the diaphragm 26, and fluid flows into the pressure difference between both sides of the suction valve 22, and the same poles face each other. At the moment, the repulsive force of the driven magnet 25 raises the diaphragm 26 to block the intake valve 22, and at the same time, the fluid is discharged due to the pressure difference on both sides of the discharge valve 23.

By this principle, the attraction force and the repulsive force are changed four times to any driven magnet 25 according to one rotation of the drive shaft 13, so that a piston of two strokes is induced at one point of the diaphragm 26.

As described above, the present invention is equipped with a plurality of magnets in the diaphragm and by pumping continuously by causing a piston movement in a non-contact at the same time, there is an effect of increasing the life of the related parts and the pump and reducing the noise caused by the operation.

While the invention has been shown and described with respect to certain preferred embodiments, it will be understood that the invention can be variously modified and modified without departing from the spirit or scope of the invention as set forth in the following claims. Those skilled in the art can easily know that.

Claims (3)

In the diaphragm pump 20 which is connected to the motor assembly 10 and receives the driving force from the drive shaft 13 to pump the fluid, the outer circumferential surface of the diaphragm fixing plate 27 is connected to the inside of the pump housing 21. The diaphragm 26 to be airtightly mounted, the driven plate 24 mounted on the lower surface of the diaphragm 26, and the driving plate mounted to the drive shaft 13 while maintaining a constant distance from the driven plate 24. 14, respectively, mounted on the driven plate 24 and the driving plate 14, inducing a vertical piston movement of the diaphragm 26, and a plurality of mounted on a predetermined circumference on the upper side of the driving plate 14; Pumping means including a driving magnet 15 and a plurality of driven magnets 25 mounted on a predetermined circumference at a lower side of the driven plate 24, and in the vicinity of the inlets 21a and outlets 21b of the housing 21. Suction valves 22 respectively mounted to the valves and performing the opening / closing action by pressure differences between both sides. And a discharge valve (23). 2. The driving magnet 15 and the driven magnet 25 are arranged opposite to each other on the same circumference, and the N pole and the S pole are alternately formed at equal intervals, respectively. Magnetic diaphragm pump characterized by the above-mentioned. The method according to claim 1 or 2, wherein the number of the inlets 21a and the intake valves 22 of the housing 21 and the number of the driving and driven magnets 15 and 25 are kept the same. Magnetic diaphragm pump.