JP3375333B2 - Electromagnetic vibration type pump - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an electromagnetic vibration type pump. More specifically, the present invention relates to an electromagnetic vibration type pump mainly used for intake and exhaust of air to an indoor air mat or an air bed, oxygen supplementation in a fish tank, a domestic septic tank, etc., or sampling of inspection gas in pollution monitoring.

[0002]

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 equipped with the permanent magnet based on the magnetic interaction between an electromagnet and a permanent magnet, for example, FIG. There is a diaphragm type pump as shown in.

This pump has an electromagnet section composed of electromagnets arranged opposite to each other, a vibrator having a permanent magnet,
A diaphragm connected to both ends of the vibrator, a diaphragm base and a pump casing fixed to both ends of the electromagnet portion, and a pump compression chamber formed between the diaphragm and the pump casing. There is.

The lid 101 having the suction port 100 or the discharge port fixed to the two tank portions formed on the outer peripheral portion of the electromagnet portion and the left and right pump casing portions 102 are, when assembled, the tank portion and the pump body portion. 10
3 each usually 4 screws 104 and 10 screws
It is attached at 5.

[0005]

In such a pump, since the lid 101 and the pump casing portion 102 are attached with the four screws 104 and the screws 105, respectively, the number of man-hours for assembling the pump is large and it takes time.
When the lid 101 is disassembled from the tank portion, there is a problem that the female screw portion formed in the tank portion is easily damaged by the resin.

In view of the above circumstances, it is an object of the present invention to provide an electromagnetic vibration type pump which simplifies attachment of a lid and improves workability of pump assembly.

[0007]

SUMMARY OF THE INVENTION An electromagnetic vibration type pump of the present invention is an electromagnet section, a vibrator supported in the electromagnet section and provided with permanent magnets, and a pump fixed to both sides of the electromagnet section. an electromagnetic vibration pump comprising a casing portion, rail body portion resin is molded on the outer surface of the electromagnet portion is molded, it is formed in the該框body, intake
Intake tank and / or exhaust for temporarily storing air
Once store lid is attached by irregularities coupled to the tank unit for exhaust Rutotomoni, the blade tip shaped extension of the right and left of the lid
In the blade-shaped lateral grooves on the side edges of the left and right pump casings.
It is characterized by being fitted .

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The electromagnetic vibration type pump of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a longitudinal sectional view showing an embodiment of an electromagnetic vibration type pump of the present invention, FIG. 2 is an exploded perspective view of the pump of FIG. 1, and FIG. 3 is a perspective view showing a tank portion in a frame portion. Figure 4
Is a side view of the lid, FIG. 5 is an exploded perspective view showing another embodiment of the electromagnetic vibration type pump of the present invention, and FIG. 6 is a side sectional view showing another example of the lid.

As shown in FIG. 1, an electromagnetic vibration type pump according to an embodiment of the present invention is arranged at a predetermined interval in an electromagnet portion 1 and a void portion in the electromagnet portion 1. Permanent magnets such as ferrite magnets or rare earth magnets 2
And a diaphragm 4 connected to both ends of the vibrator 3, and a pump casing part 5 fixed to both ends of the electromagnet part 1, respectively. The pump casing portion 5 is composed of a pump casing 6 and a side surface lid portion (valve chamber lid portion) 8 fixed to the side surface side of the pump casing 6 with a packing 7 interposed therebetween. The side surface lid portion 8 has a double structure including an inner lid 8a and an outer lid 8b that make the inside a cavity, and has high sound insulation (sound insulation) that absorbs vibration from the pump portion by the air in the cavity. Have Further, mounting legs 9 are integrated with the inner lid 8a so that the pump body can be easily mounted on the mounting portion. In addition, 9a is a stepped cushion that absorbs vibration of the pump portion.

The pump casing 6 further has a pump portion consisting of a suction chamber 10, a discharge chamber 11 and a compression chamber 12. The suction chamber 10 is connected to the suction port 13 in order to communicate with the compression chamber 12. The suction valve 14 is provided, and the discharge chamber 11 is provided with a discharge port 15 and a discharge valve 16.

The permanent magnet 2 has a square (rectangular prism type) outer shape directly attached to the shaft.
Then, of the pair of permanent magnets 2, one of the permanent magnets 2 is magnetized to polar anisotropy magnetic poles at four positions in the circumferential direction with the polarities of the N pole and the S pole alternately, and the polarity of the other permanent magnet 2 is changed. Contrary to the opposing permanent magnets 2, the polarities of the S pole and the N pole are alternately magnetized to polar anisotropic magnetic poles at four locations in the circumferential direction.

The electromagnet portion 1 is composed of four iron cores arranged in a cross shape and a winding coil portion incorporated in the inner peripheral recesses of a pair of large-diameter iron cores (main iron cores) of the four iron cores. An electromagnet, a pair of remaining small-diameter iron cores (auxiliary iron cores) 17, and a square tubular iron core holder (core) 18 arranged on the inner peripheral portion of the pair of large-diameter iron cores and small-diameter iron cores 17.
The frame part 1 is made of resin and is molded on the outer surface.
9 is molded. The iron core holder 18 ensures positioning of the small diameter iron core 17 and the large diameter iron core, and
The small-diameter iron core 17 and the large-diameter iron core are properly held during molding.

The small-diameter iron core 17 and the large-diameter iron core have an E-shaped cross section, and the outer yoke portion 17a and the side pole portions 1 arranged at both end portions of the outer yoke portion 17a.
7b, and a center pole portion (main pole) 17c arranged between the side pole portions 17b. The small-diameter iron core 17 and the large-diameter iron core can be manufactured by stacking a plurality of silicon steel sheet stator cores in advance or by cutting them into a predetermined shape. The small-diameter iron core 17 and the large-diameter iron core are combined with an iron-core holder 18 for easy positioning and attachment, and when the resin is molded on the outer surface, insertion into the mold at the time of molding is easy. In addition, it is designed to withstand high resin pressure during molding.

As the material of the iron core holder 18, a heat-resistant resin or a non-magnetic metal such as aluminum that can withstand heat of about 150 degrees during molding can be used. Further, as a material of the frame portion 19, BMC (bulk molding compound) having heat resistance and a low shrinkage ratio which is a molding material is preferable, and for example, unsaturated polyester BMC can be used.

As shown in FIGS. 1 to 3, in the frame portion 19, an intake tank portion 20 and an exhaust tank portion 21 are provided at outer peripheral portions on the side of the pair of small-diameter iron cores 17, and the electromagnet is thermoset. It is formed at the same time when it is molded with a resin. Further, the tank portions 20 and 21 have a silencer function. As shown in FIGS. 1-2 and 4, a lid 23 having a suction portion 22 is fixed to the tank portion 20, and a lid 25 having a discharge portion 24 is fixed to the tank portion 21. ing. The fixing structure of the lids 23 and 25 is preferably a pressing structure or a inserting structure so that they can be attached by one-touch by concavo-convex coupling.
That is, the pins 26 are formed on the inner surfaces of the lids 23 and 25, for example, the four corners, and the tank portion 2 of the frame portion 19 is formed.
Insert holes 27 for inserting the four pins 26 of the lids 23 and 25 are formed in the 0 and 21 at the time of molding. This insertion hole 27
The mating size of the pin 26 and the pin 26 is to fit. Then, the tips 28a, 2 of the extension portions 28, 29 of the lids 23, 25
9a has a tapered blade shape from the outer surface toward the inner surface. Further, the ridges 30 on the left and right pump casings 6 are lowered so that the extension portions 28 and 29 can be fitted therein. In addition, on the side surface of the pump casing 6, the extension 2
8 and 29 have a shape opposite to the tip edge shape, and the extension 28,
A lateral groove 31 for pressing 29 is formed. The lateral groove 31 can be simultaneously formed by using a split mold or the like when cutting the frame portion 19 after the molding or molding the frame portion 19.

In the procedure for assembling the pump according to the present embodiment, first, as shown in FIG. 2, the electromagnet portion 1, the left and right pump casing portions 5 and the lids 23 and 25 are prepared.
Next, the lid 23 is inserted into the insertion hole 27 of the tank portion 20 by inserting the pin 26 into the lid portion 23, and then the lid portion 23 is pressed and attached to the tank portion 20. Similarly, with respect to the lid 25, the pin 26 is similarly inserted into the insertion hole 27 of the tank portion 21 and attached to the tank portion 21. This prevents the lids 23 and 25 from being displaced and floating. Next, the vibrator 3 is inserted, the diaphragms 4 on the left and right are attached, and fixedly supported by the coupling screw 4a. Next, the left and right pump casings 6 are provided with their lateral grooves 31 at the tips 28 of the extension portions 28, 29 of the lids 23, 25.
It is attached to both sides of the electromagnet unit 1 so as to fit into the a and 29a. Then, screws are inserted into the four corners of the side cover 8 of the pump casing 5 to assemble the pump. As a result, the lids 23 and 25 are assembled to the tank portions 20 and 21 by connecting the pins 26 and the insertion holes 27, so that screws can be omitted for assembling the lids 23 and 25. For this reason, there is no breakage of the female screw like 104 in FIG. 7, and the number of steps for pump assembly can be reduced, and the work cost can be reduced.

Further, in the present embodiment, the tank portion 2
By arranging the filter made of felt or polyester fiber at 0 and 21, impurities such as dust are removed when the air passes through the filter, so that clean air can be discharged.

In the present embodiment, the air sucked from the suction portion 23 is temporarily stored in the tank portion 20 and then sucked into the suction chamber 10, so that the suction noise is reduced. Further, the air discharged into the discharge chamber 11 is sucked into the tank portion 21, is once stored in the tank portion 21, and is then discharged from the discharge portion 25, so that the exhaust noise is reduced. In addition,
In the present embodiment, the tank portions 20 and 21 are formed in the outer peripheral portions on the side of the pair of small diameter iron cores 17, but the tank portion is formed only in at least one outer peripheral portion of the pair of small diameter iron cores 17. Thus, it is possible to reduce intake noise or exhaust noise.

Next, another embodiment will be described. In the present embodiment, as shown in FIGS. 5 and 6, of the tank parts on the intake side or the discharge side of the electromagnet part 1, for example, a cup-shaped lid so that the safety device can be housed in the tank part 20 on the intake side. 41 is attached. This lid 41 is the lid 2
Similarly to 3, the pins 43 are formed at the four corners of the inner surface of the extension portion 42, and the tip 42a of the extension portion 42 is shaped like a blade. The suction portion 44 of the lid 41 is formed separately and then fixed to the opening 41a. A mounting base 45 for mounting a safety device is formed on the tank portion 20, and a lead wire outlet 47 is formed on the ridge 46. Further, the lid 41 is also formed with a notch 48 for communicating with the outlet 47. As the safety device, a safety switch such as a diaphragm breakage detection device or an excessive current detection device (thermal protector) can be used.

In this embodiment, the entire pump can be downsized by accommodating the safety device in the tank.

By projecting a terminal (terminal for coil of electromagnet) by bobbin in the tank portion, the wiring of the safety device and the power source can be processed in the tank portion. As a result, it is not necessary to attach the power supply lead at the time of molding, so that the number of molding steps can be reduced.

In the above embodiments, the electromagnetic vibration type diaphragm pump in which the disk-shaped diaphragm is connected to both ends of the vibrator has been described. However, the present invention is not limited to this, and the disk is not limited to this. Electromagnetic diaphragm diaphragm pump in which a diaphragm with a corrugation is connected to the outside of the mold diaphragm to generate a pressure in response to the vibration of the vibrator, and a piston and a pump casing provided at both ends of the vibrator. Applicable to a piston type electromagnetic vibration type pump consisting of a cylinder part formed in the, or a piston type electromagnetic vibration type pump in which both ends of the oscillator of this piston type electromagnetic vibration type pump are supported by cross springs with corrugations You can also

Further, in the present embodiment, the frame portion is integrally formed with the 4-pole 2-coil type electromagnet portion incorporated in the iron core holder, but in the present invention, other than this, one ring-shaped member is formed. The frame part can be integrally formed with the electromagnet part composed of the iron core, the electromagnet part composed of one or a plurality of iron cores such as the two-pole two-coil type or the four-pole four-coil type and the winding coil part.

[0025]

As described above, according to the present invention,
It is possible to simplify the attachment of the lid and improve the workability of pump assembly.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of an electromagnetic vibration pump of the present invention.

FIG. 2 is an exploded perspective view of the pump of FIG.

FIG. 3 is a perspective view showing a tank section in the frame section.

FIG. 4 is a side view of the lid.

FIG. 5 is an exploded perspective view showing another embodiment of the electromagnetic vibration type pump of the present invention.

FIG. 6 is a side sectional view showing another example of the lid.

FIG. 7 is a perspective view showing an example of a conventional electromagnetic vibration pump.

[Explanation of symbols]

1 Electromagnet part 2 permanent magnet 3 oscillators 4 diaphragm 4a Screw for connecting vibrator and diaphragm 5 Pump casing part 6 pump casing 7 packing 8 Side cover 8a inner lid 8b outer lid 9 mounting legs 17 small diameter iron core 18 Iron core holder 19 Frame part 20, 21 Tank part 23, 25, 41 lid 26 pin 27 insertion holes 28, 29, 47 Extension 28a, 29a, 42a tip 30 lateral grooves

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-7-127577 (JP, A) JP-A-8-159036 (JP, A) JP-A-10-169551 (JP, A) JP-A-10- 61552 (JP, A) JP 2002-106472 (JP, A) Actually open 4-134681 (JP, U) Actually open 57-109287 (JP, U) Actual Kohei 4-38132 (JP, Y2) Actual Publication 63-44969 (JP, Y2) (58) Fields investigated (Int.Cl. ⁷ , DB name) F04B 39/00-39/16 F04B 43/00-47/14 F04B 53/00-53/22

Claims (3)

(57) [Claims] 1. An electromagnet section and a member supported in the electromagnet section,
What is claimed is: 1. An electromagnetic vibration pump comprising: a vibrator having a permanent magnet; and a pump casing part fixed to both sides of the electromagnet part, wherein a frame part in which a resin is molded on the outer surface of the electromagnet part. There is molded, it is formed in the該框body, the tank unit and / or for temporarily storing the intake air of the intake
Rutotomoni lid is attached by irregularities coupled to the tank unit for exhaust to store the exhaust once the blade extension of the right and left of the lid
The tip of the shape is a blade shape of the side ends of the left and right pump casings.
Electromagnetic vibration type pump fitted in the lateral groove of the . 2. The electromagnetic vibration pump according to claim 1, wherein the concavo-convex coupling is performed by a pin formed on the inner surface of the lid and an insertion hole formed in the tank portion. 3. The electromagnetic oscillating type pump of the tank portion 2 according to claim 1 or comprising exhibits a cup-shaped for the intake.