KR20190129585A - Ultrasonic resonator for cleaning and cleaning apparatus with multi frequency mode using the same - Google Patents

Abstract

According to an embodiment of the present invention, provided is an ultrasonic resonator for cleaning, which comprises: a vibration block provided with a positive electrode plate (110) for conducting a positive electrical signal and a negative electrode plate (130) for conducting a negative electrical signal; a piezoelectric ceramic (200) fixed between the positive electrode plate (110) and the negative electrode plate (130); and a conductive adhesive applied onto upper and lower surfaces of the piezoelectric ceramic (200) for the piezoelectric ceramic to adhere to the positive electrode plate (110) and the negative electrode plate (130).

Description

ULTRASONIC RESONATOR FOR CLEANING AND CLEANING APPARATUS WITH MULTI FREQUENCY MODE USING THE SAME}

The present invention relates to an ultrasonic vibrator for cleaning and a multi-frequency mode cleaning device using the same.

In general, an ultrasonic resonator converts electrical energy into mechanical vibrations to generate ultrasonic waves. The ultrasonic vibrator is applied to industrial fields such as ultrasonic cleaners, ultrasonic welding machines, ultrasonic sensors for precision measurement from household goods such as ultrasonic humidifiers, ultrasonic stimulators, ultrasonic skin massagers, and so on. It is also used for ultrasound diagnosis and ultrasonic hydrotherapy.

The ultrasonic cleaner is a device that generates mechanical displacement or vibration when an electric field is applied, and converts the mechanical energy into mechanical energy by using the electric field generated when the mechanical displacement or vibration is applied to perform cleaning.

Such a conventional cleaning apparatus using an ultrasonic vibrator manufactures a vibration device using a plurality of piezoelectric elements formed of a single material, thereby driving the vibration device to have an optimal single driving frequency corresponding to the maximum detection voltage of the piezoelectric element. Is in control. Therefore, it is difficult to finely adjust the drive signal having the optimum drive frequency, and thus it is difficult to obtain an efficient vibration.

In addition, the conventional ultrasonic vibrator generates a high frequency of 500KHz or more, and only highly trained professional personnel work by directly applying a ceramic (vibration element) to the bottom of the object to be cleaned (for example, semiconductor wafer) without applying a vibration block. This was a problem that the production cost and installation cost is expensive.

In addition, the conventional ultrasonic vibrator was applied in such a manner as to increase the frequency only by the thickness of the ceramic constituting the ultrasonic vibrator, but in this case, as the thickness of the ceramic increases, it is difficult to cope with all the plurality of currents input from the oscillator. When applied to, there was an uncomfortable problem of replacing the vibrator according to the object to be cleaned.

In addition, the conventional ultrasonic vibrator is fixed to the bottom surface of the vibrator 20 is fixed in the cleaner in a circular shape. And the ultrasonic wave generated by the ultrasonic vibrator is the bottom surface of the vibrator 20

Korean Unexamined Patent Publication No. 10-2006-0062138 (Published June 12, 2006)

Therefore, the present invention has been made to solve the conventional problems as described above, the object of the present invention is to make the ultrasonic vibrator the thickness of the piezoelectric ceramic 200 and the vibration block, the coupling form between the components and / or vibration block material It is to provide an ultrasonic vibrator for cleaning the frequency can be adjusted through.

In addition, another object of the present invention is to provide a cleaning ultrasonic vibrator capable of coping with a plurality of currents input from the oscillator, and does not need to change the configuration of the vibrator in the multi-stage scrubber, and can be easily installed and replaced.

Therefore, the present invention may include the following embodiments in order to achieve the above object.

A preferred embodiment of the cleaning ultrasonic vibrator according to the present invention is a vibration block having a positive electrode plate for passing a positive electrical signal, a negative electrode plate for passing a negative electrical signal, and fixed between the positive plate and the negative plate. It is possible to provide an ultrasonic vibrator for cleaning comprising a piezoelectric ceramic and a conductive adhesive applied to the upper and lower surfaces of the piezoelectric ceramic.

In another embodiment, the present invention provides a vibration block having a positive electrode plate for passing a positive electrical signal, a negative electrode plate for passing a negative electrical signal, and a piezoelectric ceramic fixed between the positive plate and the negative plate. Insulation washer 500 is inserted to communicate the piezoelectric ceramic in one of the positive electrode plate and the negative electrode plate to fix the piezoelectric ceramic between the vibration blocks, and an insulating washer that is fastened and insulated from the one surface of the positive electrode plate and the negative electrode plate to the outer surface of the fixing means. It may provide a cleaning ultrasonic vibrator comprising a.

In still another embodiment, the present invention provides a cleaning solution accommodating part for accommodating a cleaning liquid, a cleaning object is introduced therein, a vibration part accommodating the ultrasonic vibrators of the above embodiments and fixed to the cleaning liquid accommodating part, and a plurality of frequency modes. An oscillator having a switch unit for outputting any one of a selection command, a plurality of oscillators for outputting oscillation signals of different frequencies to the vibration unit, and any one of a plurality of oscillators set according to the frequency mode selection command selected by the switch unit. It may include a cleaning device of the multi-frequency mode using a cleaning ultrasonic vibrator including a control unit for controlling to output the oscillation command to one oscillator.

The present invention reduces the manufacturing labor, component parts and size by simplifying the configuration to selectively adjust the frequency of the ultrasonic vibrator to any one of the thickness of the piezoelectric ceramic and the vibration block, and the coupling form and / or vibration block material between the components. And it can be made simple to install and replace, there is an effect of reducing the manufacturing cost and installation cost.

In addition, since the present invention can directly receive the oscillation signal from a plurality of oscillators in the positive electrode plate and the negative electrode plate without configuring a separate power supply terminal in the piezoelectric ceramic, it is necessary to replace the ultrasonic vibrator according to the frequency mode selected in the multi-stage scrubber. There is no management effect can be obtained.

1 is a cross-sectional view showing a first embodiment of the present invention.
2 is a cross-sectional view showing an adhesive groove for reinforcing adhesion in the first embodiment of the present invention.
3 is a cross-sectional view of the electrode tab of the first embodiment implemented.
4 illustrates an electrode tab.
5 is a sectional view showing a second embodiment of the present invention.
6 is an exploded cross-sectional view of the second embodiment.
7 is a cross-sectional view of the electrode tab implemented in the second embodiment.
8 is a flowchart showing a manufacturing method according to the first embodiment of the present invention.
9 is a flowchart illustrating a manufacturing method according to a second embodiment of the present invention.
10 is a block diagram schematically illustrating a cleaning apparatus of a multi-frequency mode using the ultrasonic cleaning vibrator according to the present invention.
11 is a plan view of the vibration unit.
12 is a dead zone comparison diagram between the conventional and the present invention.

Hereinafter, embodiments and examples of the present invention will be described in detail so that those skilled in the art may easily implement the present disclosure.

However, the present application may be embodied in many different forms and should not be construed as limited to the embodiments and embodiments set forth herein, and the terms or words used in the specification and claims are not to be construed as limiting in a conventional or dictionary sense, and the present invention. It should be interpreted as meanings and concepts corresponding to the technical idea of

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of a cleaning ultrasonic vibrator and a multi-frequency mode cleaning apparatus using the same according to the present invention will be described in detail.

1 is a cross-sectional view showing a first embodiment of the present invention.

Referring to FIG. 1, a first embodiment according to the present invention is a vibration block having a positive electrode plate 110 for passing a positive electrical signal and a negative plate 130 for passing a negative electrical signal. The conductive adhesive 300 is applied to the upper and lower surfaces of the piezoelectric ceramic 200 and the piezoelectric ceramic 200 fixed between the positive electrode plate 110 and the negative electrode plate 130 to adhere to the positive electrode plate 110 and the negative electrode plate 130. ) May be included.

The vibration block 100 may be manufactured in a plate shape (for example, a quadrangle) having a predetermined thickness and extending in one direction. The double positive electrode plate 110 and the negative electrode plate 130 are adhesively fixed with the piezoelectric ceramic 200 therebetween.

Herein, the positive electrode plate 110 and the negative electrode plate 130 are conductive metal (eg, aluminum) materials, and enable positive and negative electrical signals to be applied, respectively. That is, the positive electrode plate 110 and the negative electrode plate 130 may simultaneously serve as electrodes along with the front mass and the back mass for ultrasonic reflection and heat radiation generated from the piezoelectric ceramic 200. To be formed of an electrically conductive metal block (eg, aluminum).

 The double positive plate 110 is directly connected to the wire (51, see Fig. 11) extending from the oscillator, the negative plate 130 is bonded to the bottom plate of the vibrating portion 20 (see Fig. 10) made of a conductive metal enclosure. That is, the ultrasonic vibrator 10 of the present invention may be formed as a negative power source and a ground terminal on the bottom surface of the enclosure of the vibrator 20.

The conductive adhesive 300 is applied to the upper and lower surfaces of the piezoelectric ceramic 200 to fix the piezoelectric ceramic 200 between the positive electrode plate 110 and the negative electrode plate 130. Preferably, the conductive adhesive 300 may include at least one component of carbon, silver, and copper.

The piezoelectric ceramics 200 are bonded to opposite surfaces of the positive electrode plate 110 and the negative electrode plate 130 by the conductive adhesive 300, respectively. Therefore, the piezoelectric ceramic 200 starts vibration as a high frequency (for example, 200 to 500 KHz) by an electrical signal input through the positive electrode plate 110 and the negative electrode plate 130.

Herein, the present invention does not include a separate power supply terminal drawn out from the piezoelectric ceramic 200, and may vibrate as a high frequency by an electrical signal applied through any one of both surfaces of the positive electrode plate 110 and the negative electrode plate 130. .

In addition, the present invention is a plurality of adhesive grooves (110a, 130a) made of inward grooves to increase the adhesive strength in each of the one surface where the conductive adhesive 300 is in close contact in the positive electrode plate 110 and the negative electrode plate 130 of the first embodiment In addition, a plurality of electrode tabs 150 may be further included in one ultrasonic vibrator 10 such that wires extending from different oscillators (see FIG. 10 or FIG. 11) may be connected to implement a multi-frequency mode. Can be.

This will be described with reference to FIGS. 2 to 4.

2 is a cross-sectional view showing the adhesive grooves (110a, 130a) for enhancing the adhesion in the first embodiment of the present invention, Figure 3 is a cross-sectional view of the electrode tab 150 is implemented, Figure 4 is a detailed view of the electrode tab 150 Figure is shown.

2 to 4, the present invention provides a plurality of adhesive grooves each inwardly directed from the adhesive surface (the lower surface of FIG. 2) of the positive electrode plate 110 and the adhesive surface (the upper surface of FIG. 2) of the negative electrode plate 130. 110a and 130a and at least one of the plurality of electrode tabs 150 on the upper surface of the positive electrode plate 110 may be included.

The adhesive grooves 110a and 130a may increase the adhesion between the piezoelectric ceramic 200, the positive electrode plate 110, and the negative electrode plate 130 as the conductive adhesive 300 is applied and flows inward and cures.

The electrode tab 150 is a conductive metal material and is fastened to the body hole 110b inwardly formed on the upper surface of the positive electrode plate 110. Preferably, the electrode tab 150 is preferably made of a screw-type coupling structure so that the electrode tab 150 can be selectively attached and detached according to the number of oscillators.

Therefore, the electrode tab 150 is a tab body 151 inserted into and fastened to the positive electrode plate 110 and an electric wire 51 upright from the upper surface of the tab body 151 and connected to any one of a plurality of oscillators, see FIG. 11. ) May be provided as a connection plate 152 to be connected.

The tab body 151 may be manufactured in a shape that is inward from the upper surface of the positive electrode plate 110 and coincides with the body hole 110b having a thread formed on the outer surface thereof. That is, the tab body 151 is provided with a screw thread corresponding to the screw thread formed on the wall surface of the body hole 110b on the outer surface and is fastened to the upper surface of the positive electrode plate 110.

The connecting plate 152 may further include an opening 153 through which an electric wire passes through the center of the tab body 151 as an upright plate.

Thus, the wires 51 (see FIG. 11) extending from the oscillator extend through the openings and are connected to enable energization by soldering or other adhesive method.

Therefore, the first embodiment of the present invention is fixed to the piezoelectric ceramic 200 by the conductive adhesive 300 described above, further comprising at least one or more of the adhesive groove (110a, 130a) and the electrode tab 150. Can be.

In addition, the present invention may include a second embodiment for fixing the positive electrode plate 110 to the negative electrode plate 130 through the fixing means 500 in addition to the first embodiment described above. The second embodiment will be described with reference to FIGS. 5 to 7.

5 is a cross-sectional view showing a second embodiment of the present invention, and FIG. 6 is an exploded cross-sectional view of the second embodiment.

5 and 6, a second embodiment of the present invention includes a positive electrode plate 110 for passing a positive electrical signal and a negative electrode plate 130 for passing a negative electrical signal. The vibration block 100, the piezoelectric ceramic 200 fixed between the positive electrode plate 110 and the negative electrode plate 130, and the piezoelectric ceramic 200 is inserted into any one of the positive electrode plate 110 and the negative electrode plate 130. Insulation that fastens and insulates the outer surface of the fixing means 500 from one surface of the fixing means 500 for fixing the piezoelectric ceramic 200 between the vibration block 100 and the positive electrode plate 110 and the negative electrode plate 130. It may include a washer 400.

The vibration block 100 has a predetermined thickness and is manufactured in a plate shape (for example, a quadrangle) extending in one direction to reflect ultrasonic waves generated from the piezoelectric ceramic 200 and radiate heat. In addition, the vibration block, for example, is made of a conductive metal such as aluminum to serve as the positive electrode plate 110 (Back Mass) and the negative electrode plate 130 (Front Mass).

The double positive electrode plate 110 and the negative electrode plate 130 are fixed by the fixing means 500 with the piezoelectric ceramic 200 therebetween.

The positive electrode plate 110 includes at least one pole plate guide hole 112 formed therethrough so as to guide the fixing means 500, and a support step 111 supporting the insulating washer 400 on the wall surface of the pole plate guide hole 112. Include.

The negative electrode plate 130 includes a fastening groove 131 inward so that the end of the fixing means 500 can be fastened and accommodated. Here, the fastening groove 131 is formed inwardly at one surface opposite to the piezoelectric ceramic 200, so that the end of the fixing means 500 does not protrude to the opposite surface of the negative electrode plate 130.

The pole plate guide hole 112 is formed to penetrate from one surface of the positive plate 110 to the opposite surface as shown in the drawing to fasten and guide the fixing means 500. In this case, the pole plate guide hole 112 may have a shape (for example, a screw thread) that may be fastened to the outer surface of the fixing means 500.

The support step 111 forms a step in the upper side of the wall surface of the anode plate 110 constituting the pole plate guide hole 112 to form a space in which the insertion protrusion 430 of the insulating washer 400 to be described below is installed.

In addition, the pole plate guide hole 112 may be formed with an expanded diameter than the fixing means 500 so as to be insulated coated on the wall or spaced apart from the fixing means 500 for insulation between the fixing means 500 and the positive electrode plate 110. have.

The piezoelectric ceramic 200 includes at least one piezoelectric guide hole 210 formed therethrough so as to guide the fixing means 500 in a plate shape extending in one direction. The piezoelectric ceramic 200 is fixed by the fixing means 500 between the positive electrode plate 110 and the negative electrode plate 130.

In this case, the piezoelectric ceramic 200 is energized with a positive electrical signal through the positive electrode plate 110, and is energized with a negative electrical signal through the negative electrode plate 130 and the fixing means 500.

The fixing means 500 is a conductive metal material and is capable of energizing the external oscillator, the negative electrode plate 130, and the piezoelectric ceramic 200.

To this end, the fixing means 500 communicates with the pole plate guide hole 112 and the ceramic guide hole so that the end thereof is extended to be accommodated and fastened to the fastening groove 131 of the negative electrode plate 130 (not shown with reference numerals). And a head (not provided with a reference numeral) so as to be caught on the upper surface of the insulating washer 400 at the tip of the rod (not given with reference numeral).

In this case, the diameter of the rod (not shown) is smaller than that of the pole plate guide hole 112 and may be shaped as a size that can be in contact with the washer hole 420 and the fastening groove 131.

The insulation washer 400 blocks electric conduction between the positive electrode plate 110 and the fixing means 500. To this end, the insulating washer 400 may be manufactured as an insulating plastic resin such as Teflon.

In addition, the insulating washer 400 is installed on the support step 111 while being lowered from the insulating body 410 and the insulating body 410 having an expanded diameter compared to the outer surfaces of the pole guide hole 112 and the fixing means 500. Insertion protrusion 430 is to include a washer hole 420 formed to guide the fixing means 500.

The insulating body 410 is formed to have a diameter larger than that of the pole plate guide hole 112 and the fixing means 500 of the positive electrode plate 110 so that the head (not shown) of the fixing means 500 is locked.

The insertion protrusion 430 extends downward from the insulating body 410 and is inserted into the pole plate guide hole 112 and installed at the support step 111. That is, the insertion protrusion 430 is inserted into the upper portion of the pole plate guide hole 112 of the positive electrode plate 110. In this case, the insulating body 410 and the insertion protrusion 430 are preferably integrally injection molded.

The washer hole 420 is formed to communicate with the center of the insertion protrusion 430 from the upper surface of the insulating body 410 to guide the fixing means 500.

That is, in the second embodiment of the present invention, unlike the first embodiment, the fixing means inserted in communication is not fixed to the piezoelectric ceramic 200 between the positive electrode plate 110 and the negative electrode plate 130 by the conductive adhesive 300 ( 500).

The structure of the second embodiment is such that the piezoelectric ceramic 200 and the positive electrode plate 110 and the negative electrode plate 130 are in direct contact with each other, and the fixing means 500 is configured as a power line through which a negative electrical signal is applied. There is no need for a separate power supply terminal, it can be directly connected to the oscillator.

In addition, the second embodiment of the present invention may further include a plurality of electrode tabs 150 to be applicable to the above-described multi-frequency mode. This will be described with reference to FIG. 7.

FIG. 7 is a diagram illustrating a second embodiment including the electrode tab 150.

Referring to FIG. 7, in the second embodiment, the piezoelectric ceramic 200 stacked between the positive electrode plate 110 and the negative electrode plate 130 and the positive plate 110 to the negative electrode plate 130 are fixed in communication with each other. Means 500 and a plurality of electrode tabs 150 are fixed to the upper surface of the positive electrode plate 110, the positive power is input.

The positive electrode plate 110 may include a body hole 110b that is inward from an upper surface to fix the electrode tab 150.

The plurality of electrode tabs 150 are connected to different oscillators, respectively, and a tab body 151 fastened to the body hole 110b of the positive electrode plate 110 and an electric wire 51 extending from the oscillator (see FIG. 10). It may include a connecting plate 152 having an opening 153 that extends and energizes.

Therefore, the ultrasonic vibrator 10 of the second embodiment oscillates ultrasonic waves by a positive power source oscillated by any one of a plurality of oscillators. The ultrasonic vibrator 10 of the multi-frequency mode connected to the plurality of oscillators will be described later with reference to FIGS. 10 and 12.

In addition, the present invention may be combined with the first and second embodiments described above, or in the first and second embodiments, the piezoelectric ceramic is divided into a plurality of piezoelectric ceramics. It is possible to produce a single ultrasonic vibrator 10 with a (200).

The ultrasonic vibrator 10 according to the present invention may include all or selectively as described above, hereinafter the method for manufacturing the ultrasonic vibrator 10 of the first and second embodiments of the present invention as described above. Explain.

8 is a flowchart illustrating a method of manufacturing an ultrasonic vibrator according to a first embodiment of the present invention.

Referring to FIG. 8, the manufacturing method according to the first exemplary embodiment of the present invention may include forming a piezoelectric ceramic 200 and a vibrating block 100 by S110, and conductive adhesive 300 on both surfaces of the piezoelectric ceramic 200. S120 step of applying the coating, and after bonding and curing the positive electrode plate 110 and the negative electrode plate 130 on both sides of the piezoelectric ceramic 200 after the step S120, step S130, the electrode tab 150 is connected to the vibration unit of the cleaner S140 step of storing in 20.

 In step S110, the piezoelectric ceramic 200, the positive electrode plate 110, and the negative electrode plate 130 are molded into a predetermined shape. The piezoelectric ceramic 200 is preferably manufactured in the same shape as the positive electrode plate 110 and the negative electrode plate 130 so that the contact area between the positive electrode plate 110 and the negative electrode plate 130 can be expanded.

In addition, the positive electrode plate 110 and the negative electrode plate 130 may be a thickness of the conductive metal plate material according to the desired frequency.

In addition, the positive electrode plate 110 and the negative electrode plate 130 may have a plurality of adhesive grooves 110a and 130a inwardly inclined at one surface to which the conductive adhesive is bonded, and a plurality of electrode tabs 150 may be fastened to the upper surface of the positive electrode plate 110. The body hole 110b may be further formed.

Step S120 is a step of applying the conductive adhesive 300. The conductive adhesive 300 may include carbon. That is, the conductive adhesive 300 may be applied to one surface of the piezoelectric ceramic 200 and / or the opposite surfaces of both surfaces of the positive electrode plate 110 and the negative electrode plate 130.

The step S130 is a step of curing the conductive adhesive 300 for a predetermined time after adhering the positive electrode plate 110 and the negative electrode plate 130 with the piezoelectric ceramic 200 therebetween. The piezoelectric ceramic 200 is fixed by the conductive adhesive 300 between the positive electrode plate 110 and the negative electrode plate 130.

The step S140 is a step of connecting the wires by storing the one or more electrode tabs 150 on the upper surface of the ultrasonic vibrator 10 fixed by the conductive adhesive 300 and then storing them in the vibrator 20. The electrode tab 150 is fastened to the tab body 151 by a screw coupling method to the body hole 110b of the positive electrode plate 110. Thereafter, the operator communicates the positive wire 51 connected to any one of the plurality of oscillators to the opening 153 of the electrode tab 150 and then solders the positive wire to the positive electrode tab 150. ) So that it can be energized.

In such a manner, the plurality of ultrasonic vibrators 10 are accommodated in the vibrator 20 as a structure in which the plurality of ultrasonic vibrators are electrically connected in parallel. Here, the vibrator 20 is an enclosure made of a conductive metal material (for example, stainless steel) to form a closed space to prevent the external cleaning solution 60 from penetrating. Therefore, the plurality of ultrasonic vibrators 10 connected in parallel to each other are fixed to the bottom surface of the vibrator 20 with a conductive adhesive (for example, carbon or silver nano adhesive).

Therefore, the vibrator 20 serves as a negative power line and ground terminal of the housing bottom surface. Therefore, the first embodiment of the present invention does not need to add a negative power line.

That is, the first embodiment of the present invention can simplify the configuration of only the positive electrode plate 110 and the negative electrode plate 130, the conductive adhesive 300, and the piezoelectric ceramic 200, and includes a plurality of electrode tabs 150. It is versatile and extensible.

9 is a flow chart showing the manufacturing method of the second embodiment according to the present invention.

9 is a manufacturing method of the second embodiment according to the present invention S210 step of forming a ceramic and a positive electrode plate 110 and a negative electrode plate 130, and S220 step of processing the guide holes in the positive electrode plate 110 to the negative electrode plate 130 and , S230 step of sequentially assembling the positive electrode plate 110 to the insulating material, S240 step of fixing the fixing means 500 in communication, and S250 step of connecting the electrode tab 150 and the wire and received in the vibrator 20 It includes.

Step S210 is a step of forming the piezoelectric ceramic 200, the positive electrode plate 110, and the negative electrode plate 130 to a predetermined shape. The piezoelectric ceramic 200 is preferably manufactured in the same shape as the positive electrode plate 110 and the negative electrode plate 130 so that the contact area between the positive electrode plate 110 and the negative electrode plate 130 can be expanded.

In addition, the positive electrode plate 110 and the negative electrode plate 130 may be adjusted in thickness according to a desired frequency as a plate material of a conductive metal material.

Step S220 is a step of forming guide holes for guiding the fixing means 500 on the positive electrode plate 110, the negative electrode plate 130, and the piezoelectric ceramic 200, respectively. That is, the positive electrode plate 110 is processed to each of the pole plate guide hole 112 capable of guiding the fixing means 500 and the piezoelectric guide hole 210 to the piezoelectric ceramic 200, and the negative plate 130 is the fixing means 500. The fastening groove 131 is accommodated is the end of the processed.

In addition, the insulating washer 400 may be made of an insulating material such as Teflon to form a washer hole 420 communicating the insulating body 410 and the insertion protrusion 430.

In addition, the positive electrode plate 110 is formed with a stepped support step 111 formed on the upper side of the pole plate guide hole 112. The support step 111 is formed to have a size that can accommodate the diameter of the insertion protrusion 430 of the insulating washer 400.

Step S230 is a step of assembling the positive electrode plate 110, the negative electrode plate 130, the piezoelectric ceramic 200, and the insulating washer 400. The piezoelectric ceramic 200 is stacked between the positive electrode plate 110 and the negative electrode plate 130. Here, the piezoelectric ceramic 200 is stacked such that the piezoelectric guide hole 210, the pole plate guide hole 112 of the positive electrode plate 110, and the fastening groove 131 of the negative electrode plate 130 are positioned at mutually coincident positions.

Here, the pole guide hole 112 and the fastening groove 131 are preferably molded to have different diameters. For example, the plate guide hole 112 has a diameter that is larger than the diameter of the rod (not shown) of the fixing means 500 so as to be spaced apart from the wall surface and the outer surface of the fixing means 500 to be insulated from each other. Can be formed.

However, the washer hole 420 and the fastening groove 131 is formed in a size that can be in direct contact with the fixing means (500). That is, the fastening groove 131 has a size that the fixing means 500 is electrically conductive with the negative electrode plate 130, the pole plate guide hole 112 is spaced apart so that the fixing means 500 is not in contact with the positive electrode plate 110. It can form a space.

Alternatively, in the present invention, the electrode plate guide hole 112 may be treated with an insulation coating for insulation from the fixing means 500.

The insulating washer 400 is inserted into the upper end of the pole plate guide hole 112 from the upper surface of the positive electrode plate (110). At this time, the insertion protrusion 430 is installed as a support step 111 formed on the upper side of the pole guide hole 112. Therefore, the insulating washer 400 is assembled such that the insertion protrusion 430 is inserted into the upper side of the pole guide hole 112 and supported by the support step 111.

 In step S240, the fixing means 500 is fastened to complete the assembly of the ultrasonic vibrator 10. The fixing means 500 may include a head having an extended diameter (not given a reference numeral) and a rod extending in the longitudinal direction (not given a reference numeral). Therefore, the rod (not shown) of the fixing means 500 is inserted into the fastening groove 131 of the negative electrode plate 130 through the washer hole 420 of the insulating washer 400. At this time, the fastening groove 131 is a groove inwardly in one surface of the negative electrode plate 130 was not formed through the negative electrode plate 130. Therefore, the end of the fixing means 500 does not protrude to the outside of the negative electrode plate 130.

Here, the fixing means 500 is electrically insulated from the negative electrode plate 130 by communicating with the piezoelectric ceramic 200 in a state insulated from the positive electrode plate 110 by the insulating washer 400. Therefore, the piezoelectric ceramic 200 may receive a positive electrical signal through the positive electrode plate 110, the negative electrical signal through the negative electrode plate 130, and the fixing means 500.

Therefore, the ultrasonic vibrator 10 is fixed by the fixing means 500 from the insulating washer 400 to the negative electrode plate 130.

In step S250, the electrode tab 150 is installed on the upper surface of the positive electrode plate 110, and a positive wire is connected to the electrode tab 150, and a negative wire is connected to any one of the fixing means 500. Bonding and storing in the vibrator 20.

The electrode tab 150 is fastened by a screw coupling method to the body hole 110b formed on the upper surface of the positive electrode plate 110, and a positive wire connected to any one of the plurality of oscillators is bonded and connected.

In addition, the fixing means 500 may serve as a negative power terminal as described above. Therefore, the fixing means 500 is connected to the wire for transmitting a negative power (-) from the outer surface. Each of the ultrasonic vibrators 10 are connected in parallel through the above process and received in the vibrator 20.

As described above, the second embodiment of the present invention can reduce assembly labor as the configuration thereof is simplified as compared with the related art, and in particular, the assembly can be easily replaced and exchanged even by an unskilled person.

In addition, the present invention can provide a cleaning device that is driven in a multi-frequency mode using the ultrasonic vibrator 10 as described above. This will be described with reference to FIGS. 10 to 12.

FIG. 10 is a block diagram schematically illustrating a cleaning apparatus using the ultrasonic vibrator 10 of the multi-frequency mode according to the present invention. FIG. 11 is a plan view of the vibrator 20. FIG. 12 is a dead zone of the related art. (Dead Zone) (a, A) is a figure compared.

10 illustrates a second embodiment in which the ultrasonic vibrator 10 having the fixing means 500 is provided, and FIG. 11 illustrates the ultrasonic vibrator 10 of the first embodiment in which the fixing means 500 is not provided. The installed example is shown.

10 and 11, the cleaning apparatus of the present invention includes a vibrating unit 20 in which a plurality of ultrasonic vibrators 10 are accommodated, and a cleaning liquid accommodating unit accommodating the vibrating unit 20 and the cleaning liquid 60 ( 30 and a control member 40 for controlling the ultrasonic vibrator 10.

The vibrator 20 forms, for example, an inner space in which a plurality of ultrasonic vibrators 10 are aligned and fixed to a wall surface and a bottom surface, and the external cleaning liquid 60 through a cover (not shown). ) Is sealed to prevent penetration. That is, the vibrator 20 is formed as an enclosure in which an inner space can be sealed.

Here, the ultrasonic vibrator 10 according to the present invention may be manufactured in a quadrangle as shown in the above description and the drawings to reduce the dead zone (A).

That is, the present invention is a dead zone (a) in which the conventional ultrasonic vibrators 1 and the bottom surface of the vibrator 20 which are manufactured in a circular shape as shown in FIG. There is an effect to reduce the area.

For example, the ultrasonic wave is output from the ultrasonic vibrator 10 to the outside using the vibrating portion 20 in contact with the medium. Therefore, the more the area bonded between the ultrasonic vibrator 10 and the bottom of the vibrator 20, the higher the ultrasonic transmission rate.

However, as the conventional ultrasonic vibrator 1 is manufactured in a circular or elliptical shape, the area of the dead zone a is larger than that in the case of the rectangular ultrasonic vibrator as shown in FIG.

That is, according to the present invention, the dead zone A may be reduced by manufacturing the ultrasonic vibrator 10 in a quadrangle, thereby increasing the ultrasonic transmission rate.

In addition, the plurality of ultrasonic vibrators 10 are connected to the cable 50 extending from the control member 40 is introduced into the vibrator 20.

Here, the plurality of ultrasonic vibrators 10 may be connected to the fixing means 500 as a negative power supply terminal, or a conductive adhesive (for example, a carbon component) may be formed on the bottom surface of the vibrator 20 made of a conductive metal. By fixing the ultrasonic vibrator 10 with an adhesive), a separate negative power line may be omitted.

The cleaning liquid accommodating part 30 is, for example, a tank in which the cleaning liquid 60 and the vibrating part 20 are accommodated, and the vibrating part 20 is fixed to the bottom surface, and the cleaning liquid 60 is filled. That is, the cleaning liquid accommodating part 30 forms a space in which ultrasonic waves output from the vibrating unit 20 can be delivered to the cleaning object using the cleaning liquid 60 as a medium.

The control member 40 is oscillated selectively according to the switch unit 41 for outputting the frequency mode selection command, the control unit 42 for outputting the control command according to the command of the switch unit 41, and the control unit 42. An oscillator 43 for outputting a signal is included.

The switch unit 41 may include a power on / off switch and a plurality of frequency mode selection (for example, A KHz, B KHz, C KHz, and A> B> C).

The oscillator 43 has a plurality of oscillators and is driven according to a selection command of the controller 42. For example, the oscillator 43 may include a first oscillator for outputting an A frequency oscillation command, a second oscillator for outputting a B frequency oscillation signal, and a third oscillator for outputting a C frequency oscillation signal.

That is, the controller 42 outputs an oscillation command to the first oscillator when the A frequency mode selection command is input from the switch unit 41, and when the B frequency mode selection command is input, the second oscillator and the C frequency mode selection command are output. When input, each oscillator outputs an oscillation command.

Preferably, the control unit 42 may turn off the oscillator by counting a manual input command of the switch unit 41 or a set time.

Accordingly, the first to third oscillators output the oscillation signal to the vibrator 20 according to the oscillation command selectively input from the control unit 42. At this time, the output oscillation signal is output through a positive (+) wire 51 connecting the ultrasonic vibrator 10 connected in parallel to the vibrator 20 in parallel.

Therefore, according to the present invention, the ultrasonic vibrator 10 having the plurality of electrode tabs 150 may provide a cleaner capable of a multi-frequency mode, and replace the ultrasonic vibrator 10 according to the frequency mode as in the prior art. There is no need to replace or replace wiring lines.

The embodiment of the cleaning ultrasonic vibrator of the present invention and the multi-frequency mode cleaner using the same described above are merely exemplary, and those skilled in the art to which the present invention pertains various modifications and equivalents therefrom. It will be appreciated that other embodiments are possible.

Therefore, it will be understood that the present invention is not limited to the forms mentioned in the above detailed description. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims. It is also to be understood that the present invention includes all modifications, equivalents, and substitutes within the spirit and scope of the invention as defined by the appended claims.

10: ultrasonic vibrator 20: vibrator
30: cleaning liquid container 40: control material
41: switch unit 42: control unit
43: oscillation unit 50: cable
60: cleaning liquid 100: vibration block
110: positive electrode plate 110a, 130a: adhesive groove
110b: body hole 111: support step
112: electrode plate guide 130: negative electrode plate
131: fastening groove 150: electrode tab
151: insertion body 152: connecting plate
153: opening 200: piezoelectric ceramic
210: piezoelectric guide 300: conductive adhesive
400: insulated washer 410: insulated body
420: washer ball 430: insertion protrusion
500: fixing means

Claims (8)

A vibration block (100) having a positive electrode plate (110) for energizing a positive electrical signal and a negative electrode plate (130) for energizing a negative (-) electrical signal;
A piezoelectric ceramic 200 fixed between the positive electrode plate 110 and the negative electrode plate 130; And
Ultrasonic vibrator for cleaning; comprising; a conductive adhesive 300 is applied to the upper and lower surfaces of the piezoelectric ceramic 200 to adhere to the positive electrode plate 110 and the negative electrode plate 130.
The method of claim 1, wherein the conductive adhesive 300
An ultrasonic vibrator for cleaning comprising carbon.
A vibration block (100) having a positive electrode plate (110) for energizing a positive electrical signal and a negative electrode plate (130) for energizing a negative (-) electrical signal;
A piezoelectric ceramic 200 fixed between the positive electrode plate 110 and the negative electrode plate 130;
Fixing means 500 is inserted to communicate the piezoelectric ceramic 200 in any one of the positive electrode plate 110 and the negative electrode plate 130 to fix the piezoelectric ceramic 200 between the vibration block 100; And
Ultrasonic vibrator for cleaning; including; an insulating washer 400 to fasten and insulate the outer surface of the fixing means 500 on any one surface of the positive electrode plate 110 and the negative electrode plate 130.
According to claim 3, Any one of the positive electrode plate 110 and the negative electrode plate 130 further comprises a pole plate guide hole 112 formed in a diameter spaced apart from the fixing means 500,
The piezoelectric ceramic 200 includes an ultrasonic vibrator for cleaning including a piezoelectric guide hole 210 through which the fixing means 500 is communicated.
The method of claim 3, wherein the insulating washer 400
Ultrasonic vibrator for cleaning, characterized in that made of Teflon material.
The method of claim 3, wherein any one of the positive electrode plate 110 and the negative electrode plate 130
Ultrasonic vibrator for cleaning comprising a fastening groove 131 inwardly so that the end of the fixing means (500) communicating with the piezoelectric ceramic 200 is fastened and received.
The method according to claim 1 or 3, wherein the positive electrode plate 110
Ultrasonic vibrator for cleaning, characterized in that the plurality of electrode tabs 150 are fastened to the upper surface.
A cleaning liquid accommodating part 30 accommodating the cleaning liquid 60 and receiving the cleaning object;
Ultrasonic vibrator 10 of claim 1 or claim 3 is accommodated in the vibration unit 20 is fixed to the cleaning solution containing portion 30;
A switch unit 41 which outputs any one of a plurality of frequency mode selection commands;
An oscillator 43 having a plurality of oscillators for outputting oscillation signals of different frequencies to the oscillator 20;
The control unit 42 for controlling to output the oscillation command to any one of the plurality of oscillators set in accordance with the frequency mode selection command selected by the switch unit 41; washing in the multi-frequency mode using a cleaning ultrasonic vibrator including a Device.

Images