KR101914643B1 - Supersonic Wave Washer With Improved Structure Of Washing Tub And Oscillator - Google Patents

Abstract

An ultrasonic wave oscillator assembly with an improved coupling structure according to the present invention comprises: a mounting plate composing a part of a wall of a water tank, and provided with a plurality of grooves; a vibration plate provided with a circumference portion surrounding the circumference of the mounting plate around the groove, an entrance portion inwardly extended to the water tank through the groove along the inner circumference of the circumference portion, a front surface portion composing the top surface by being bent from an inner end of the entrance portion, and a block portion convexly protruded to the direction toward the mounting plate along one side circumference of the circumference portion; an oscillator attached to the front surface portion and generating ultrasonic waves; a break ring located between the vibration plate and the mounting plate while having a concave groove unevenly joining with the block portion; and a plurality of fasteners penetrating through the break ring by certain gap along the bottom surface circumference of the circumference portion and coupled to the mounting plate.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an ultrasonic oscillator assembly having an improved coupling structure,

[0001] The present invention relates to an ultrasonic oscillator assembly having an improved coupling structure, and more particularly, to an ultrasonic oscillator assembly having an improved coupling structure, which is used to clean a washing water located in a water tank in a state of being provided on a floor or a side wall forming a water tank of an ultrasonic washing machine, The present invention relates to an ultrasonic transducer assembly capable of generating ultrasonic vibration while being easily fixed to a vertical surface such as a sidewall, and not including a structure other than the diaphragm between the vibrator and the bottom or side wall, thereby reducing the performance of the vibrator.

The ultrasonic transducer is mounted on a vibration device such as a washing machine or a massage machine to generate vibration in the ultrasonic frequency band so as to utilize the cleaning or shaking effect by the vibration. In particular, the use of such ultrasonic vibrators is increasing in the washing machine field, and the prior art will be described as follows.

Korean Patent No. 10-1757580 discloses a dishwasher having a built-in ultrasonic cleaning function. The dishwasher includes a washing tub having a space capable of accommodating a dishware therein. The dishwasher is installed under the washing tub, A support body having a wall surface portion which is engaged with an outer circumferential surface of the washing tub to be engaged with the outer circumferential surface of the washing tub and which is connected to the lower end of the wall surface portion to seal the lower portion thereof, A plurality of ultrasonic generators for generating an ultrasonic wave by applying an oscillating signal by an oscillating circuit of a control panel provided on one surface or a surface of a housing, a sink having a horizontal surface integrally connected to one side of the cleaning tank, The first connection part formed at one end of the cooking compartment is connected to the second connection part at one side, Cheoksil cover by the washing water and rinsing water sandstone and a sandstone installed so as to inject the number of each secheoksugwa rinsing the top and bottom of the interior available room door portion and the three opening and closing the top or bottom. A dishwasher including a driving motor for driving the washing water sandstone and the rinsing water sandstone, and a housing unit having a heat supply pump driven by the rinsing water sandstone to drive the hot air pump. The dishwasher includes an integrated ultrasonic washing function, .

This dishwasher has a disadvantage in that it can not be applied to a dishwasher not provided with an air moving pipe because the dishwasher blows the object to be cleaned by spraying air through the ultrasonic wave generated in the ultrasonic wave generator in a state where the air moving pipe is connected.

As another prior art, Korea Patent No. 10-1761344, entitled " Ultrasonic Cleaner ", is provided with an oscillator which is provided on the outside of a cleaning space in which a material and a cleaning material are accommodated and generates ultrasonic waves, An oscillating plate oscillated by ultrasonic waves generated in the oscillator and protruding into the oscillating plate, an insulating plate provided between the oscillating plate and the oscillator to prevent heat or electromagnetic waves from moving from the oscillator to the oscillating plate, A first bolt penetrating through the insulating plate to connect the oscillator and the diaphragm; a hermetic ring coupled to the diaphragm to seal the periphery of the diaphragm protruded into the washing space; And a second bolt formed on a wall surface of the vibration plate, And a cap for fixing the airtight ring to the outer wall surface of the cleaning space.

In the case of such an ultrasonic generator, since the oscillator is mounted through the bolt and the insulating plate in the structure of mounting the oscillator toward the cleaning space where the object to be cleaned is placed, It is possible to influence the output by the output signal.

Therefore, there is a need to develop an ultrasonic transducer assembly that can be used in a water tank of an ultrasonic washing machine while solving the above-mentioned problems.

The present invention has been conceived to overcome the problems of the above-described technology, and it is an object of the present invention to provide a method for mounting an oscillator on a sidewall or floor of a water tank to be ultrasonically cleaned, The main object of the present invention is to provide an easy diaphragm.

Another object of the present invention is to provide a watertight structure between a diaphragm and a side wall or bottom of a water tank to prevent water from contacting the vibrator.

Another object of the present invention is to provide an auxiliary stabilizing structure capable of attenuating the residual vibration in a portion of the diaphragm which can be attached to a side wall or a floor excluding a portion exposed to the inside of the water tank.

According to an aspect of the present invention, there is provided an ultrasonic transducer assembly having an improved coupling structure, comprising: a mounting plate having a plurality of grooves; A circumferential portion surrounding a circumference of the mounting plate around the groove in a ring shape; an ingress portion extending through the groove along the inner circumference of the circumference to the inside of the water tub; and an upper portion bent at the inner end of the ingress portion A diaphragm having a convex portion protruding in a direction toward the mounting plate along one side of the circumference of the diaphragm; A vibrator attached to the front portion to generate ultrasonic waves; A ring positioned between the diaphragm and the mounting plate with the concave groove being concaved and recessed with the convex portion; And a plurality of fasteners passing through the ring at a predetermined interval along the periphery of the circumferential portion and coupled to the mounting plate.

Further, the diaphragm is characterized in that the diaphragm has a membrane portion bent and extended in a ring shape from the outer periphery of the periphery toward the mounting plate.

In addition, the ring may include a vertical groove extending from the surface contacting the mounting plate to the concave groove, and an inlet portion having a larger inner diameter than other portions of the vertical groove at a surface side portion contacting the mounting plate And one through-hole is formed.

In addition, the through-hole is provided with a hollow space having a larger inner diameter than other portions of the vertical groove, and a vibration absorbing body in which the absorbing powder is packed is provided between the hollow spaces.

An ultrasonic transducer assembly having an improved coupling structure according to the present invention includes:

1) A diaphragm structure for mounting a vibrator on a sidewall or bottom of a water tank to be ultrasonically cleaned and capable of easily transmitting vibrations generated in the vibrator without affecting the performance or structure of the vibrator,

2) A watertight structure is formed between the diaphragm and the side wall or bottom of the water tank to prevent water from contacting the vibrator,

3) It has the effect of providing an auxiliary stabilizing structure that can attenuate the residual vibration at the side wall or the part that can be attached to the bottom except the exposed part of the diaphragm inside the water tank.

1 is an exploded perspective view showing a basic embodiment of an ultrasonic vibrator assembly according to the present invention.
2 is a cross-sectional view showing a basic embodiment of the ultrasonic vibrator assembly of the present invention.
3 is a cross-sectional view showing an embodiment in which the membrane of the present invention is applied to a ring vibration absorber.
4 is a cross-sectional view showing an embodiment in which a film is applied to the ultrasonic vibrator assembly of the present invention.
5 is a cross-sectional view showing another embodiment of the film.
6 is a cross-sectional view showing one embodiment in which a film is applied to the front surface and back surface of the convex portion;
7 is a conceptual diagram showing an embodiment in which a diffuse reflection portion is applied to a convex portion.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The accompanying drawings are not drawn to scale and wherein like reference numerals in the various drawings refer to like elements.

FIG. 1 is an exploded perspective view showing a basic embodiment of the ultrasonic oscillator assembly of the present invention, and FIG. 2 is a sectional view showing a basic embodiment of the ultrasonic oscillator assembly of the present invention.

Referring to FIGS. 1 and 2, the ultrasonic transducer 300 assembly of the present invention comprises a mounting plate 100 having a plurality of grooves, which is a part of a wall of a water tank, A circumferential portion 210 surrounding the periphery of the mounting plate 100 in the form of a ring and a circumferential portion 210 extending inwardly of the circumferential portion 210 and extending inwardly in the water tank, A front surface portion 230 bent upward at an inner end of the entrance portion 220 and protruding in a direction toward the mounting plate 100 along one side of the circumference portion 210, A diaphragm 200 having a convex portion 240; A ring 400 disposed between the diaphragm 200 and the mounting plate 100 with the concave groove 410 being concave and convex coupled with the convex portion 240; And a fastener 500 that passes through the ring 400 and is coupled to the mounting plate 100 at a predetermined interval along the periphery of the circumference 210.

Here, the vibrator 300 is generally used in a dishwasher or the like, and means that ultrasonic vibration is generated to perform cleaning through the vibration. The vibrator 300 converts electric energy into kinetic energy through a piezoelectric element. The vibrator 300 may include a separate amplifier (not shown) that amplifies the vibration so that the influence of the vibration may be effective while generating ultrasonic vibration, And further comprising a horn structure capable of diverging. In addition, a diaphragm 200 is further included as a structure for mounting the vibrator 300 to the water tank.

The diaphragm 200 is mounted on a side wall or bottom of the water tank via a mounting plate 100 configured to pierce at least one groove (not shown) and insert the diaphragm 200 into the groove. Here, the diaphragm 200 is fixed around the groove by an adhesive such as a bond or a fastener 500 such as a bolt 11.

The diaphragm 200 has an entrance portion 220 protruding from the central portion and protruding to the inside of the water tank, and an upper portion located inside the water tank through the entrance portion 220, And a front portion 230 on which a horn of the vibrator 300 is mounted. The vibration plate 200 basically serves as a medium for transmitting vibrations generated by the vibrator 300 to a wider range than when the horn is directly exposed. Further, since the vibrator 300 itself is an electronic device using electric energy, The diaphragm 200 is utilized as a defensive structure that can be separated from the diaphragm 200. Therefore, it is preferable that the diaphragm 200 is made of a metal material which is as thin as possible and has durability and water resistance.

The peripheral portion 210 excluding the front portion 230 and the entrance portion 220 is brought into contact with the periphery of the groove of the water tank and the contacted portion is fixed through the adhesive agent or the fastener 500 as described above It is needless to say that the present ultrasonic vibrator 300 can be applied not only to the bottom of the water tank but also to a site where the influence of gravity is not received up and down like a sidewall.

Next, the membrane ring 400 seals the diaphragm 200 except the front part 230 and the water tank, and is formed of a material having elasticity such as rubber or synthetic resin. Of course, since the front portion 230 is formed at the central portion of the diaphragm 200, the diaphragm 200 is fitted to the diaphragm 200 by simply passing the center portion through the shape corresponding to the front portion 230 It is possible to seal the space between the plate 100 and the plate. However, since it is an environment in which ultrasonic vibration is generated quickly and strongly, the following structure is further included, so that the membrane 400 can be stably mounted.

First, the diaphragm 200 is extended from the end of the entering portion 220 to the periphery of the diaphragm 200 in parallel with the mounting plate 100 with respect to the front portion 230 and the entering portion 220 located at the central portion of the diaphragm 200 The circumferential portion 210 which is a portion of the circumferential portion 210 and the inlet portion 210 is further provided with the membrane portion 250 which is bent and extended toward the water tank at the end of the circumferential portion 210, A seat space surrounded by the seat 220 can be formed so that the seat 400 is positioned in the seat space so that the seat 400 can be easily detached from the original seat.

A portion of the diaphragm 200 contacting the convex portion 240 may be provided with a concave groove 410 in which the membrane is embedded into the inside of the ring 400 so that the position of the membrane ring 400 can be fixed, Therefore, it goes without saying that the membrane 400 can maintain its original position even when the ring 400 is vibrating through the concave groove 410 and the membrane 250.

The thread groove 10 may be formed in the peripheral portion 210 at predetermined intervals and fasteners 500 such as bolts 11 and nuts 12 may be provided in the thread groove 10. [ . That is, the fastener 500 is connected by sequentially passing through the ring 400 and the mounting plate 100 in a state where the fastener 500 is inserted through the thread groove 10 formed in the peripheral portion 210. Or vice versa, a fastener 500 such as bolts 11 may be provided on the surface of the water tank at all, so that the fastener 500 is formed in the peripheral portion 210 It may be configured to be fitted in the thread groove 10.

The vibrator 300 itself is mounted on the back surface of the front portion 230 of the diaphragm 200 using a material such as a bond so that the vibrator 300 can be attached to the diaphragm 200 without affecting the output of the vibrator 300 The structure in which the vibrator 300 is mounted on the diaphragm 200 using a separate bolt 11 as shown in the prior arts is a structure for mounting the vibrator 300 in addition to the bolts 11, And the shape of the vibrator 300 can be influenced.

That is, the vibrator 300 is a very sensitive electronic device, and all the components are also bound to the vibrator 300 based on the bolt 11. Basically, when the output of the vibrator 300 is controlled, the output is controlled in accordance with how far the configurations of the vibrators 300 are based on the bolts 11 at the time of manufacture, If the vibrator 300 is mounted through the additional bolt 11 as described above, the shape of the vibrator 300 may be deformed by the bolt 11 or the coupling relationship of the other structures of the vibrator 300 may be distorted, The output of the control unit 300 is influenced.

Therefore, in order to completely block such a problem, it is basically necessary to fasten to the water tank through the fastener 500. The fixation with the vibrator 300 may be performed by using a urethane bond, which is a generally used urethane bond, It is preferable that the vibrator 300 is fixed to the diaphragm 200 through the vibration plate 300.

Furthermore, the problem with the ultrasonic washing machine is that a vibration of a high frequency occurs for a long time, so that if the coupling relationship is changed or the sealing structure shows a slight gap, corrosion or cracks may occur in the corresponding portion There is a need to apply a structure that can prevent this.

It is assumed that the life of the ultrasonic cleaning machine is about 10 years. In this 10 years, since it is the life time when assuming that the external force or special event does not occur in the state where the regular periodic inspection is performed, the ultrasonic washing machine There is a need for additional configurations that eliminate the factors that can cause this lifetime problem.

As a structure for this, the structure of the convex portion 240 and the membrane of the diaphragm 200 will be described once again with a focus on the ring 400 as follows.

First, a plurality of portions of the membrane 400, which are in contact with the convex portion 240 and in which the concave groove 410 is formed, are passed through the concave groove 410 at a predetermined distance from the inner surface of the concave groove 410, An extended through groove 420 is formed.

This through groove 420 can be utilized as a passage through which residual vibration and sound (noise) generated while the vibrator 300 vibrates. In other words, basically, the ring 400 having the largest area in contact with the water tank absorbs most of residual vibration or sound, but there is a part of the structure in which the ring 400 alone is provided, Since the main role of the membrane ring 400 is sealing, this effect is hardly taken into consideration in practice and it is known that the practical effect is very low. (When the ultrasonic vibrator 300 is used, the ultrasonic wave can not reduce the ' It will be easy to understand.

3 is a cross-sectional view showing an embodiment in which the membrane of the present invention is applied to a ring with a vibration absorber.

Therefore, the vibration or sound moving through the through-hole 420 is eventually discharged to the outside through the concave groove 410 from the convex portion 240 of the diaphragm 200. Preferably, the structure of the through-hole 420 includes a vertical groove 422 through which the film contacting the mounting plate 100 extends from the surface of the ring 400 to the concave groove 410, (421) having an inner diameter larger than that of other portions of the vertical grooves (422) on the surface side portion contacting the mounting plate (100). In this case, the inner diameter of the vertical groove 422 is gradually reduced from the portion in contact with the introduction portion 421 toward the concave groove 410, so that the vibration, which is opposite to the loudspeaker, The vertical grooves 422 may be formed.

Further, the vertical groove 422 may be provided with a wedge space 423 having a larger inner diameter than other portions. The wedge space 423 itself may serve as a kind of buffer for collecting vibrations and sounds introduced therein. In other words, when vibrations or sounds are introduced into the through grooves 420, the inner diameter of the through grooves 420 decreases toward the concave grooves 410, so that the amount of discharge is smaller than the inflow amount. Therefore, And is discharged again after having stayed in the discharge space 423 for a certain period of time. Accordingly, during this time, the vibration frequency is reduced or the sound wave energy is reduced in the opening space 423, so that the vibrations and sound waves passing through the opening space 423 have a weaker force.

In addition to this, the vibration absorbing body 430 in which the absorbing powder 431 capable of absorbing the vibration is packed in the pack 432 can be provided inside the expanded space 423. Here, the absorbent powder 431 may be made of, for example, a high elastic rubber or a high elastic carbon. The absorbent powder 431 may be processed into a powder form or processed into a gel form to be contained in the packed space 432 So that it is possible to provide a function of primarily absorbing vibration in the discharge space 423.

FIG. 4 is a cross-sectional view showing an embodiment in which a film is applied to the ultrasonic vibrator assembly of the present invention, and FIG. 5 is a cross-sectional view showing another embodiment of the film.

Next, a film 600 may be further provided between the membrane ring 400 and the diaphragm 200. The film 600 serves to assist the membrane 400 to be easily attached to the diaphragm 200 between the ring 400 and the diaphragm 200 and to prevent the diaphragm 400 from coming into contact with the concave It is also possible to assist the grooves 420 in the vicinity of the grooves 410 and the through grooves 420 and the convex portions 240 of the diaphragm 200. The film 600 will be described as follows.

First, the film 600 may be formed of an elastic material or a stretchable material itself, or may be coated with a sticky material on its surface. Basically, the diaphragm 200 or the membrane may have a surface friction coefficient larger than that of the ring 400 Means that the membrane is formed between the ring 400 and the diaphragm 200.

At this time, the film 600 may have a portion through which the membrane is in contact with the opening portion of the through-hole 420 of the ring 400 in a shape corresponding to the opening of the through-hole 420. 602). When the connection hole 602 is formed, the through-groove 420 of the ring 400 can communicate with the convex portion 240 of the diaphragm 200 without any problem.

The protrusion 603 may further include a protrusion 603 protruding toward the inside of the through hole 420 of the ring 400 at a portion where the connection hole 602 is formed. The film 600 can prevent a situation in which the film is pushed from the original position to another position due to the generation of vibration between the ring 400 and the vibration plate 200 .

In addition, the film 600 is positioned between the ring 400 and the diaphragm 200, and is different in level from that of the vibration due to the difference in material and thickness. In particular, It is possible to cause a problem that the membrane is shaken between the ring 400 and the diaphragm 200 by vibration. Accordingly, even if the film 600 moves by a certain amount due to the vibration, it is preferable to form the film 600 in a corrugated structure in order to minimize the influence of other structures such as the through-hole 420 described above.

The wrinkle structure is a bellows structure having a shape in which unevenness is repeated or a folding groove is formed at a predetermined interval on the surface and is folded into a corrugated shape through the folding groove. Especially, if the corrugated portion 601 having the corrugated structure is provided along the portion contacting the convex portion 240, excessive movement can be prevented by the corrugated portion 601 while being affected by the above-mentioned vibration, It is possible to minimize the influence on the user.

Next, a part of the film 600 may be attached to the surface of the convex portion 240, which will be described in more detail as follows.

6 is a cross-sectional view showing one embodiment in which a film is applied to the front surface and back surface of the convex portion.

The convex portion 240 protrudes toward the water tank with the same thickness as the surface of the convex portion 240 contacting the ring 400 and the opposite side of the concave portion 240. Accordingly, .

Next, a part of the constitution of the film 600 or the surface of the film 600 may be coated with a component capable of absorbing vibrations such as the vibration absorber 430 described above. The main film 611 is covered with the film 600 so as to cover the surface of the film 600 contacting the ring 400 in the convex portion 240 and the sub film 612 covering the rear surface of the convex portion 240, The main film 611 and the main film 611. The main film 611 includes a main film 611 and a main film 611. The main film 611 includes a plurality of projections 240 extending from one side of the main film 611 to one side of the subfilm 612, And the film 613.

The connection film 613 connects between the main film 611 and the subfilm 612 and extends through the protrusion 240 so that the sound waves striking the main film 611 are passed through the outer film 600 It is preferable that it is made of a material having a high elasticity in comparison with the other films 600. [ In the case of the sub-film 612, a plurality of film grooves (not shown) extending through the surface of the sub-film 612 and extending to the surface of the convex portion 240 can be also provided, And a structure that can be easily absorbed.

7 is a conceptual diagram showing an embodiment in which a diffused portion is applied to the convex portion.

Further, in the above description, the membrane may be provided with a structure for moving and reducing vibration by connecting the through-hole 420 of the ring 400 and the convex portion 240 of the diaphragm 200. Here, It is possible to further apply a configuration for attenuating vibration or sound more effectively by utilizing the portion 240. [

The filler material 620 may be located in the recessed space 241. The filler material 620 may be larger than other portions of the diaphragm 200 in order to absorb vibrations and sound waves in the case of vibration or sound waves. It may be formed of a material having elasticity and may further include a communication groove 621 penetrating the inside of the filler 620 and communicating with the through groove 420 of the ring 400 as described above. In this case, even if there is no physical connection, vibrations or sound waves can easily move along the thinner point of the film 600, so that the communication groove 621 is formed in a corresponding portion of the thin- It can be said that a portion where sound waves or vibration can easily pass through is made to have the same effect as if it is communicated.

It is preferable that the communication groove 621 is formed such that the inner diameter of the communication groove 621 gradually decreases as the membrane is moved farther from the vicinity of the through groove 420 of the ring 400.

In addition, in the recessed space 241, vibration and sound waves are reduced in a state where the filler 620 is not positioned (or between the filler 620 and the back surface of the convex portion 240 in a state where the filler 620 is positioned) A diffusive reflection part 242 including a diffusive projection protruding and extending in different directions and a plurality of protrusions on the back surface of the convex part 240 and a diffusive reflection groove in which the plurality of concavity grooves are embedded in different directions and intervals . ≪ / RTI > When the vibration or sound wave comes into contact with the dendrites or the irregularly reflecting grooves, the diffuse reflection part 242 induces a diffuse reflection phenomenon in which the reflected waves of such waves spread to different positions. As a result, So that it is converted into a weak vibration which has little influence when it is discharged. That is, it can be said that the recessed space 241 is utilized as a kind of chamber for attenuating vibration.

The surface of the diffusive reflecting portion 242 is also formed repeatedly along the surface of the diffusing portion 242 and includes a rising surface 244 rising in the height direction and a slope surface 243 extending downward from the rising surface 244 There may be four refracting blades 245.

When the vibration is discharged, the vibration is discharged along the curvature of the back surface of the convex portion 240 while being discharged to the outside. At this time, if the blades 245 are provided (in particular, the inclined surface 243) The vibrating diaphragm is affected by the vibrations to be moved, and a certain degree of vibration reducing effect can be expected due to the influence of the vibrations to be moved.

As described above, the configuration and operation of the ultrasonic transducer assembly having the improved coupling structure according to the present invention are described in the above description and drawings, but the present invention is not limited to the above description and drawings. And it is to be understood that various changes and modifications may be made without departing from the spirit of the invention.

10: screw groove 11: bolt
12: nut 100: mounting plate
200: diaphragm 210: peripheral portion
220: entry portion 230: front portion
240: convex portion 241: concave space
242: diffuse reflection part 243: inclined surface
244: standing surface 245:
250: membrane part 300: oscillator
400: membrane ring 410: concave groove
420: through groove 421:
422: vertical groove 423: open space
430: vibration absorbing body 431: absorbing powder
432: Pack 500: Fastener
600: film 601:
602: connecting hole 603: ridge
611: Main film 612: Sub-film
613: Connection film 620: Filler
621: communicating groove

Claims (11)

An ultrasonic transducer assembly having an improved coupling structure,
A mounting plate having a plurality of grooves that form part of a wall of the water tank;
A circumferential portion surrounding a circumference of the mounting plate around the groove in a ring shape; an ingress portion extending through the groove along the inner circumference of the circumference to the inside of the water tub; and an upper portion bent at the inner end of the ingress portion A diaphragm having a convex portion protruding in a direction toward the mounting plate along one side of the circumference of the diaphragm;
A vibrator attached to the front portion to generate ultrasonic waves;
A ring positioned between the diaphragm and the mounting plate with the concave groove being concaved and recessed with the convex portion;
And a plurality of fasteners passing through the ring at a predetermined interval along the periphery of the circumference to be coupled to the mounting plate,
The membrane ring
A vertical groove extending from the surface contacting the mounting plate to the concave groove and a penetration groove having an inlet portion having an inner diameter larger than that of the other portion of the vertical groove at a surface side portion contacting the mounting plate,
The diaphragm has a concave portion and a concave portion. The diaphragm has a convex portion and a concave portion.
Wherein the back surface is provided with a diffuse reflection portion formed with irregular intervals of any one of a plurality of grooves and protrusions. The method according to claim 1,
The diaphragm includes:
And a membrane portion bent and extended from the outer periphery of the peripheral portion toward the mounting plate in a ring shape. delete The method according to claim 1,
The through-
A hollow space having a larger inner diameter than other portions of the vertical groove is provided,
Among the above-mentioned magnets,
Wherein the ultrasonic vibrator assembly is provided with a vibration absorber in which the absorbing powder is packed. The method according to claim 1,
Between the diaphragm and the ring,
Wherein the diaphragm and the membrane are formed of a material having a frictional coefficient greater than a surface friction coefficient of the ring, and the membrane is formed with a connecting hole formed through a portion contacting the opening of the through-hole. 6. The method of claim 5,
The film may be,
And a corrugated portion having a corrugated portion in contact with the convex portion is provided. 6. The method of claim 5,
The film may be,
And a protruding portion protruding toward the through-hole along the circumference of the connection hole. 6. The method of claim 5,
The convex portion
The surface of the membrane contacting with the ring protrudes with the same thickness as the back surface, and the recessed space is provided in the convex portion,
The film may be,
A main film positioned between the diaphragm and the ring,
A subfilm in contact with a back surface of the convex portion of the diaphragm,
And a connection film formed of a material having a greater elasticity than the main film and the subfilm and extending toward the subfilm through a plurality of protrusions at regular intervals along the width direction of the main film. Ultrasonic oscillator assembly. 9. The method of claim 8,
In the recessed space,
And a filler filled in the cavity with a material having elasticity greater than other portions of the diaphragm in a state of having a communication groove communicating with the penetration groove. delete The method according to claim 1,
Repeatedly formed along the surface of the irregular reflection portion,
Wherein a plurality of refracting blades are provided, the refracting blades being composed of an upstanding surface rising in a height direction and a tilted surface extending downward from the upstanding surface.

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