JP3485478B2 - Electromagnetic vibration type pump - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic vibration pump. More specifically, the present invention relates to an electromagnetic vibration type pump mainly used for sucking / discharging air into / from an indoor air mat or air bed, supplementing oxygen in a fish tank or a household septic tank, or sampling an inspection gas in pollution monitoring. 2. Description of the Related Art Conventionally, as an electromagnetic vibration type pump for sucking and discharging a fluid by utilizing the vibration of a vibrator provided with a permanent magnet based on the magnetic interaction between an electromagnet and a permanent magnet, For example, there is a diaphragm pump as shown in FIG. [0003] This pump supports two sets of casings 103 and 104 forming a pump chamber 102 while supporting a diaphragm 101, and a driving unit 107 including a vibrator 105 and an electromagnet 106 connected to the diaphragm 101.
, A filter holding unit 108 and an air tank 109. A cylindrical tubular body 110 is attached between the casings 103 and 104 with screws 110a.
The drive unit 107 is housed in the pump body 11.
1 are formed. The pump body 111 is housed in a housing 112, and the filter holding portion 108 is fitted into an upper portion of the housing 112, and the air tank 109 is attached to a lower portion by screws 112a. This pump utilizes the forced vibration of the diaphragm 101, and the pump body 111 itself vibrates and emits a large noise. Therefore, the pump body 111 is supported on the air tank 109 by four stepped cushions 113 to absorb the vibration in the housing 112. However, since the pump body 111 is supported by the air tank 109 through four stepped cushions 113, the pump body 11
1 is troublesome, and it is difficult to sufficiently absorb vibration. In addition, the housing 112 is larger than the pump body, the price is the highest among the parts, and there is a problem that cost reduction is difficult. On the other hand, as shown in FIG.
00 and the pump unit 201 in the cup container (housing) 20.
There is a pump that is attached to the inner peripheral wall 202a of FIG. The lid 203 is fixed by bolts 204 and nuts 205 inserted from below the housing 202. In such a pump, the drive unit 200 and the pump unit 201 can be easily attached and the rigidity of the housing 202 is increased, so that vibration can be reduced. In addition, the number of parts is small, and it can be manufactured at low cost. However, when the pump is used indoors, it is desired to further reduce the vibration. [0008] In view of the circumstances described above, an object of the present invention is to provide an electromagnetic vibration type pump having a high soundproofing effect. According to the present invention, there is provided an electromagnetic vibration pump according to the present invention, based on a magnetic interaction between an electromagnet and a permanent magnet, by electromagnetic vibration of a vibrator provided with the permanent magnet.
An electromagnetic vibration type pump for vibrating a diaphragm connected to the vibrator, wherein the electromagnet, a vibrator and a bottomed case containing a pump casing having a diaphragm and a pump chamber therein, and a suction port for suctioning outside air, The pong
And a discharge port for discharging air discharged from the pump chamber to the outside.
And an air tank to said provided between the bottom case and the air tank, are assembled by laminating the partition plates that have a suction hole communicating with said suction port, said partition switching plate and Effects
Tank is hermetically fixed, the bottom of the bottomed case is located at an upper position , and
Bolt inserted from the bottom of the bottom
It is characterized by being fixed to a part . DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An electromagnetic vibration pump according to the present invention will be described below with reference to the accompanying drawings. [0011] Figure 1 is a flat view showing an embodiment of an electromagnetic oscillating type pump of the present invention, FIG. 2 is a front view of the pump in FIG. 1, FIG. 3 A-A line cross-sectional view of the pump in FIG. 1, FIG. 4 is a sectional view taken along the line BB of the pump in FIG. 2, and FIG.
It is CC sectional view taken on the line of the pump in FIG. As shown in FIGS. 1 to 5, an electromagnetic vibration type pump according to one embodiment of the present invention comprises an air tank 1, a partition plate 2 and a bottomed case (housing) 3. 3a is sequentially stacked so that the opening edge 3b is located at the upper position, and the four bolts 4 inserted from the lower portion of the air tank 1 are screwed into the screw holes of the bottom 3a. I have. The bolt 4 can be fixed using a nut instead of being screwed into the screw hole of the bottom 3a. The bottomed case 3 is in a state where a bathtub or a cup container is turned down. The bottomed case 3
Inside, an electromagnetic drive unit 5 and a pump unit 6 are housed. The air tank 1 hermetically secures a peripheral edge portion of the air tank 1 and a suction enclosure R formed therein to the partition plate 2 by, for example, ultrasonic welding or an adhesive. In the present embodiment, the bottom 3 of the bottomed case 3
a so that the bolt 4
Strongly presses the bottom 3a against the partition plate 2, so that the opening edge 3b of the bottomed case 3 does not move and the bottomed case 3
Increases the stiffness. Therefore, vibration and noise generated from the electromagnetic drive unit 5 and the pump unit 6 can be reduced.
In the present embodiment, the bolts are screwed to the bottom of the bottomed case to assemble. However, the present invention is not limited to this, and the bottomed case is firmly pressed against the partition plate. For example, a flange that is bent outward or inward may be formed at the opening edge of the bottomed case, and the flange may be fixed to the partition plate by bolts, knock pins, or caulking as appropriate. You can also. The electromagnetic drive unit 5 includes an electromagnet 8 attached to the inner peripheral wall of the bottomed case 3 by screws 7 so as to face the inner peripheral wall of the case 3.
A vibrator 10 is provided between the electromagnets 8 and includes a pair of permanent magnets 9 arranged at a predetermined interval and having a rectangular cross section. As the electromagnet 8, for example, an electromagnet having an E-shaped iron core having a cross-section laminated with an E-shaped iron core and winding coils incorporated in two concave portions of the E-shaped iron core can be used. As the permanent magnet 9, a ferrite magnet, a rare earth magnet, or the like can be used. A combination of a cylindrical electromagnet and a cylindrical permanent magnet may be used. The pump section 6 has a diaphragm 13 attached to both ends of a rod 11 of a vibrator 10 by screws 12, and a pump chamber 16 including a suction chamber 14 and a discharge chamber 15. Screw 1 on inner wall
It is composed of a pair of pump casings 18 attached by. The suction chamber 14 of the pump casing 18 has a suction port 19 and a suction valve 20, and the discharge chamber 15 has a discharge port 21 and a discharge valve 22. A discharge nozzle 23 is inserted into the guide hole 24 of the air tank 1 via an O-ring 25 on the discharge port 21 side. When the electromagnetic vibration type pump according to the present embodiment is used for an air mat, for example, the diaphragm 13 connected to the vibrator 10 is moved based on the magnetic interaction between the electromagnet 8 and the permanent magnet 9. By vibrating, external air is sucked from the suction port 1 a of the air tank 1 and then flows into the pump chamber 16 through the suction hole 2 a of the partition plate 2 and the suction hole 18 a of the pump casing 18. Thereafter, the air is discharged from the discharge port 1b of the air tank 1 to the air bag of the mat through the discharge nozzle 23, and the mat can be inflated. At this time, the air tank 1
Since the air is temporarily stored, the sound of the fluid when the air flows through the air tank 1 can be reduced since the air acts as a silencer. In this embodiment, between the partition plate 2 and the bottomed case 3, there is provided a packing 2 made of synthetic rubber or natural rubber or the like, which has not only airtightness but also vibration proofing.
6 are preferably arranged. Further, by disposing a filter made of felt or polyester fiber in the suction enclosure R of the air tank 1, impurities such as dust when air passes through the filter can be efficiently removed from the air. As described above, according to the present invention,
By assembling the bottomed case so that the bottom is at the upper position, the rigidity of the bottomed case is increased, so that the vibration-proof and soundproofing effects can be enhanced. Further, compared to the conventional method, the bottomed case and the air tank are separately assembled and the number of parts is reduced, so that the work efficiency can be greatly improved by automation of the assembly.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view showing an embodiment of an electromagnetic vibration type pump according to the present invention. FIG. 2 is a front view of the pump in FIG. FIG. 3 is a sectional view taken along line AA of the pump in FIG. FIG. 4 is a sectional view taken along line BB of the pump in FIG. 2; FIG. 5 is a cross-sectional view taken along line CC of the pump in FIG. 2; FIG. 6 is a partially cutaway perspective view showing an example of a conventional diaphragm type pump. FIG. 7 is a cross-sectional view showing another example of a conventional diaphragm pump. [Description of Signs] 1 Air tank 1a Suction port 1b Discharge port 2 Partition plate 2a Suction hole 3 Bottom case 3a Bottom 3b Opening edge 4 Bolt 5 Electromagnetic drive 6 Pump 7 Screw 8 Electromagnet 9 Permanent magnet 10 Vibrator 11 Rod 12 Screw 13 Diaphragm 14 Suction chamber 15 Discharge chamber 16 Pump chamber 17 Screw 18 Pump casing 18a Suction hole 19 Suction port 20 Suction valve 21 Discharge port 22 Discharge valve 23 Discharge nozzle 24 Guide hole 25 O-ring 26 Packing R Suction enclosure

Claims (1)

(57) [Claim 1] Based on magnetic interaction between an electromagnet and a permanent magnet, a diaphragm connected to the vibrator is driven by electromagnetic vibration of a vibrator provided with the permanent magnet. an electromagnetic vibrating pumps to vibrate, the electromagnet, a bottomed case for housing the pump casing having a diaphragm pump chamber oscillator and therein, a suction port for outside air suction before
A discharge port for discharging air discharged from the pump chamber to the outside
And an air hole provided between the bottomed case and the air tank and communicating with the suction port.
Is assembled by laminating the partition plates that Yusuke, the partition selector
The plate and the air tank are airtightly fixed, and the bottom of the bottomed case is disposed at an upper position , and
The bolt inserted from the bottom of the air tank is
An electromagnetic vibration pump fixed to the bottom of a pump.