KR20220060703A - Ultrasonic generating system of resonance oscillation type for ultrasonic cleaner - Google Patents

Abstract

The present invention relates to an ultrasonic cleaner and, more specifically, to a resonant oscillation-type ultrasonic generation system which generates ultrasonic waves for contained cleaning water through ultrasonic oscillation to thus perform ultrasonic cleaning, and always oscillates at a constant ultrasonic vibration through frequency adjustment when ultrasonic oscillation efficiency is lowered due to a temperature rise in a vibration oscillation element due to the ultrasonic cleaning, and the generation of foreign substances. The present invention relates to the ultrasonic cleaner, which comprises an ultrasonic vibrator (43) provided on one side of a cleaning water container (111) containing cleaning water (112) therein and ultrasonically oscillating, wherein the ultrasonic cleaner has an ultrasonic oscillation unit (20) for generating ultrasonic oscillation in the ultrasonic vibrator (43) provided on one side of the cleaning water container (111). The ultrasonic oscillation unit (20) includes: a main controller (30); a frequency transmitter (41) for transmitting an ultrasonic frequency signal; an amplifier (42) for amplifying a frequency signal; the ultrasonic vibrator (43); a scanner (44) connected between the amplifier (42) and the ultrasonic vibrator (43) to detect an ultrasonic signal; and a current detector (45) connected between the amplifier (42) and the ultrasonic vibrator (43) to detect a current.

Description

Resonant oscillation ultrasonic generation system

The present invention relates to an ultrasonic cleaner, and more particularly, generates ultrasonic waves for washing water or a mask fusion device contained through ultrasonic oscillation, thereby enabling ultrasonic cleaning or mask fusion, etc., due to ultrasonic cleaning or mask fusion, etc. The present invention relates to a resonance oscillation type ultrasonic wave generating system for always generating constant ultrasonic vibration through frequency adjustment when ultrasonic oscillation efficiency is reduced due to temperature rise, generation of foreign substances, and the like.

In general, a washing machine can enjoy a safe life by effectively removing many contaminants or viruses.

Accordingly, the washing machine also disinfects objects such as tableware, glasses, and clothing, but in recent years, as a sterilizer, it is used to sterilize by spraying a disinfectant that is harmless to the human body to enter and exit, thereby preventing the spread or penetration of pathogens or viruses.

Generally, the sterilization technology for these people consists of spraying a disinfectant that is harmless to the human body, and there are cases in which the wind is used in the form of an air curtain.

Recently, due to the pandemic of COVID-19, wearing a mask and disinfecting hands has become routine to prevent the spread of viruses or bacteria.

Generally, in the case of hand disinfection, a hand sanitizer in which a hand sanitizer is sprayed is used when a gel-type disinfectant is applied to the hand or the hand is placed in a spray device. Stable operation and operation of such a hand sanitizer is desperately needed, so that users' hands can be kept clean at all times.

Improvements are required to ensure stable mask manufacturing in other mask fusion devices as well.

Registered Patent No. 10-0899230 (Notice on May 26, 2009) Public Utility Model No. 20-2009-0004559 (released on May 13, 2009) Publication No. 10-2019-0043984 (published on April 29, 2019)

An object of the present invention to solve the above problems is to remove foreign substances, viruses, bacteria, etc. attached to the user's hand immersed in the hand washing water by oscillating ultrasonic waves in the washing water contained inside the hand washer.

Another object of the present invention is to detect and compensate for a decrease in efficiency due to a change in frequency during user hand washing through ultrasonic vibration of washing water to increase washing efficiency by vibrating with the best performance.

In addition, another object of the present invention is to improve the performance through frequency correction that the performance is deteriorated by the heat generated by repeating the mask fusion process a number of times.

Another object of the present invention is to improve oscillation performance by detecting an increase in the temperature of the vibration oscillation device and correcting the frequency thereof.

The present invention for achieving the above object is an ultrasonic cleaner comprising an ultrasonic vibrator 43 provided at one side of the washing water container 111 in which the washing water 112 is contained, and oscillating ultrasonic vibrations, the The washing water tank 111 is provided with an ultrasonic oscillation unit 20 for generating ultrasonic waves in the ultrasonic vibrator 43 located on one side, the ultrasonic oscillation unit 20, the main controller 30; a frequency transmitter 41 for transmitting an ultrasonic frequency signal; an amplifier 42 for amplifying a frequency signal; and a scanner 44 including an ultrasonic vibrator 43 and connected between the amplifier 42 and the ultrasonic vibrator 43 to detect an ultrasonic signal; and a current detector 45 connected between the amplifier 42 and the ultrasonic vibrator 43 to detect a current.

In a preferred embodiment of the present invention, the main controller 30, the control unit 31; memory 32; an oscillation signal controller 33 that reads the oscillation frequency value stored in the memory 32 and transmits it to the frequency transmitter 41; a current determining unit 34 analyzing the current value detected by the current detector 45 and detecting a maximum current value among current values during the process of transmitting the ultrasonic frequency signal for scanning; an oscillation frequency adjustment unit 35 that reads the ultrasonic frequency signal data value for scanning stored in the memory 32, searches for an ultrasonic frequency signal matching the maximum current value, and updates it as an oscillation frequency value for ultrasonic vibration; and a washing water constant temperature adjusting unit 36 that stops the ultrasonic frequency oscillation oscillating when it is determined that the washing water temperature sensing value is out of the predetermined normal operating temperature range provide the system.

In a preferred embodiment of the present invention, the ultrasonic vibrator 43 comprises: a vibrator body 431 having a state of being adhered to one side of the washing water container 111 while forming the ultrasonic vibrator 43 body; an oscillation element 432 oscillating ultrasonically by the ultrasonic signal of the frequency transmitter 41; and cooling fins 433 formed on one side of the vibrator body 431 to form a plurality of wings to dissipate heat in the air.

In a preferred embodiment of the present invention, in the control method of the ultrasonic wave generating system for oscillating ultrasonic vibration in the ultrasonic vibrator 43 provided on one side of the washing water container 111 containing the washing water 112 therein, the main controller an oscillation step (S1) of oscillating ultrasonic vibrations in the ultrasonic vibrator 43 receiving the ultrasonic frequency signal transmitted from the frequency transmitter 41 under the control of (30); In the oscillation step (S1), the oscillation of the ultrasonic vibration is performed for a predetermined time and the main controller 30, which determines that one oscillation cycle is completed, transmits a control signal for stopping the transmission of the ultrasonic frequency signal to the frequency transmitter 41 side a cycle completion determination step (S2); A scanner 44 and a current detector 45 between the amplifier 42 and the ultrasonic vibrator 43 while oscillating ultrasonic vibrations in the ultrasonic vibrator 43 by the ultrasonic frequency signal for scanning transmitted from the frequency transmitter 41 a scanning step (S3) of detecting a frequency value and a current value and transmitting the detected frequency value and current value to the main controller 30 side; And the oscillation frequency adjustment unit 35 of the main controller 32 reads the ultrasonic frequency signal data value for scanning stored in the memory 32 and searches the ultrasonic frequency signal matching the maximum current value to the oscillation frequency value for ultrasonic vibration. It provides a control method of a resonance oscillation type ultrasonic wave generating system, characterized in that it comprises an oscillation frequency adjustment step (S4) to update.

In a preferred embodiment of the present invention, in the oscillation step (S1), the oscillation signal control unit 33 of the main controller 30 reads the oscillation frequency value stored in the memory 32 and transmits it to the frequency transmitter 41 side. , an ultrasonic frequency signal transmitting step of transmitting an ultrasonic frequency signal from the frequency transmitter 41 (S11); a transmission frequency amplification step (S12) of amplifying the frequency signal transmitted from the frequency transmitter 41 by the amplifier 42; and an ultrasonic vibration oscillation step (S13) of oscillating ultrasonic vibrations by an oscillation element in the ultrasonic vibrator 43 that has received the amplified frequency signal.

In a preferred embodiment of the present invention, in the scanning step (S3), the oscillation signal control unit 33 of the main controller 30 reads the oscillation frequency value for scanning stored in the memory 32 to the frequency transmitter 41 side. a scanning frequency signal transmitting step (S31) of transmitting and transmitting an ultrasonic frequency signal for scanning from the frequency transmitter 41; While the ultrasonic vibration is oscillated by the ultrasonic vibrator 43 by the ultrasonic frequency signal for scanning transmitted from the frequency transmitter 41, the frequency value is detected by the scanner 44 between the amplifier 42 and the ultrasonic vibrator 43. A frequency signal scanning step (S32) transmitted to the main controller (30) side; While the ultrasonic vibration is oscillated by the ultrasonic vibrator 43 by the ultrasonic frequency signal for scanning transmitted from the frequency transmitter 41, the current signal is detected by the current detector 45 between the amplifier 42 and the ultrasonic vibrator 43 a current signal sensing step (S33) for transmitting to the main controller 30 side; and the highest current value detection step of analyzing the current value detected by the current detector 45 by the current determining unit 34 of the main controller 30 to detect the highest current value among the current values during the transmission process of the ultrasonic frequency signal for scanning (S34) provides a control method of the resonance oscillation type ultrasonic wave generating system, characterized in that it includes.

In a preferred embodiment of the present invention, in the oscillation frequency adjusting step (S4), the oscillation frequency adjusting unit 35 of the main controller 30 reads the ultrasonic frequency signal data value for scanning stored in the memory 32, a peak current value matching frequency search step (S41) of searching for an ultrasonic frequency signal matching the peak current value detected by the scanning step (S3); an oscillation frequency value updating step (S42) of updating, in the oscillation frequency adjusting unit 35, an ultrasonic frequency signal value matching the highest current value searched for in the frequency searching step (S41) to an oscillation frequency value for ultrasonic vibration; and an updated oscillation frequency value storing step (S43) of storing the oscillation frequency value for ultrasonic vibration oscillation updated by the oscillation frequency value updating step (S42) in the memory 32 by the oscillation frequency adjusting unit 35 It provides a control method of a resonance oscillation type ultrasonic wave generating system, characterized in that.

In a preferred embodiment of the present invention, when the washing water constant temperature adjusting unit 36 of the main controller 30 determines the washing water temperature sensing value to be a high temperature state outside the predetermined normal operating temperature range, the ultrasonic frequency at which ultrasonic vibration is oscillated The washing water constant temperature adjustment step (S5) of stopping transmission is included, wherein the washing water constant temperature adjustment step (S5) is the washing water temperature sensing value detected by the water temperature sensor 17 located on one side of the washing water tank 111 to the main controller The washing water temperature detection step (S51) transmitted to (30); a set temperature value comparison step of comparing and discriminating between the washing water temperature sensing value sensed by the washing water constant temperature adjusting unit 36 of the main controller 30 and a preset washing water temperature value stored in the memory 32 (S52); In the washing water constant temperature adjusting unit 36 of the main controller 30, when the washing water temperature sensing value determined by the set temperature value comparison step S52 is within the normal operating temperature range within the set temperature for operation, ultrasonic vibration is generated. It is determined that the oscillation is in the normal operating state, the temperature that exceeds the normal operating temperature range is the scanning temperature range that requires adjustment of the frequency value. 30), stopping the transmission of the ultrasonic frequency signal under the control of the main controller 30 and performing the process of the scanning step (S3), characterized in that it includes a scanning discrimination step (S53) A method for controlling an ultrasonic wave generating system is provided.

In a preferred embodiment of the present invention, in the washing water constant temperature adjusting step (S5), the washing water temperature sensing value determined by the set temperature value comparison step (S52) in the washing water constant temperature adjusting unit 36 of the main controller 30 When it is determined that the oscillation stop temperature range is a high temperature state out of the scanning temperature range, the washing water constant temperature adjustment unit 36 transmits a signal for stopping the oscillation of the ultrasonic frequency signal to the main controller 30 (S54); And in the main controller 30, the raw water supply step of supplying the raw water to the washing water tank 111 by transmitting a control signal of the raw water supply to the raw water supply 121 side by determining the washing water temperature as the oscillation stop temperature range at a high temperature (S55) ) provides a control method of a resonance oscillation type ultrasonic wave generating system, characterized in that it comprises.

The present invention configured as described above has an effect of oscillating ultrasonic waves into the washing water contained inside the hand washing machine to remove foreign substances, viruses, bacteria, etc. attached to the user's hands immersed in the hand washing water.

Another effect of the present invention is to detect and compensate for a decrease in efficiency due to a change in frequency during user hand washing through ultrasonic vibration of washing water to increase washing efficiency by vibrating with the best performance.

In addition, another effect of the present invention is to improve the oscillation performance by detecting an increase in the temperature of the vibration oscillation device and correcting the frequency thereof.

In addition, another effect of the present invention is to supply raw water when the washing water temperature is high to lower the overall temperature of the washing water to achieve normal operation.

And another object of the present invention is to improve the performance through frequency correction that the performance is deteriorated by the heat generated by repeating the mask fusion process a number of times.

1 is an exemplary configuration diagram of an ultrasonic cleaner according to the present invention.
2 is an exemplary configuration diagram for the oscillation components of the ultrasonic cleaner according to the present invention.
3 is an exemplary configuration diagram of the main controller of the ultrasonic cleaner according to the present invention.
4 is an exemplary view of an ultrasonic vibrator of an ultrasonic cleaner according to the present invention.
5 is a control flowchart of an ultrasonic wave generating system of an ultrasonic cleaner according to the present invention.
6 is a control flowchart for thermostat control of the ultrasonic wave generating system of the ultrasonic cleaner according to the present invention.

Hereinafter, it will be described in detail with reference to the accompanying drawings.

That is, the resonance oscillation type ultrasonic wave generating system and control method according to the present invention is provided on one side of the washing water tank 111 containing the washing water 112 therein, as shown in the accompanying FIGS. 1 to 6, to oscillate the ultrasonic vibration It relates to an ultrasonic cleaner (100) including an ultrasonic oscillator (20).

In addition, the resonance oscillation-type ultrasonic wave generating system and control method according to the present invention have been mainly described for the operation and configuration of the hand washer 100 in the following detailed description and examples of the accompanying drawings, but the main operation and configuration are not limited thereto. It can be applied and operated in a variety of fields to which ultrasonic generation technology is applied.

In particular, in the mask manufacturing process, the resonant oscillation type ultrasonic wave generating system according to the present invention in the mask base paper fusion process in which the multilayer base paper such as the both sides of the outer skin and the functional nonwoven fabric in between is continuously supplied and the multilayer base paper is fused according to the shape of the mask; and It would be desirable for a control method to be applied.

Accordingly, technologies such as ultrasonic frequency oscillation and resonance commonly applied in the field of the hand washer 100 and the mask base paper fusion process can be operated by applying the technology of the present invention. The scope of rights may be applied to the washing machine 100 and the mask base paper welding technology field, and further to the ultrasonic frequency oscillation technology field.

Accordingly, in the following detailed description, a technical description will be performed focusing on the configuration of the hand washer 100 as a more preferred embodiment, and other detailed descriptions and drawings of the present invention include ultrasonic frequency oscillation and scanning technology and frequency correction. The technology will be applied in other fields as well.

Hereinafter, preferred embodiments of the present invention will be described with a focus on the exemplary configuration of the hand washing machine 100 .

That is, it is provided on one side of the washing water bottle 111 containing the washing water 112 therein, and includes an ultrasonic vibrator 43 that oscillates ultrasonic vibrations, and the ultrasonic vibrator 43 located on one side of the washing water bottle 111. and an ultrasonic oscillation unit 20 for generating ultrasonic oscillation in the . And the washing water is supplied to the washing water tank 111 through the raw water supply 121, and the water level sensor 16 detects the water level, and the ultrasonic vibration is oscillated by the operation of the ultrasonic vibrator 43 on one side.

Thus, when the user puts his or her hand into the ultrasonic cleaner 100 , foreign substances in the user's hand are removed by the ultrasonic wave oscillated by the ultrasonic oscillator 20 . Accordingly, since the foreign material removal technology using ultrasonic waves is a widely used technology, a detailed technical description will be omitted.

In addition, since the ultrasonic oscillator 20 oscillates ultrasonic waves according to a resonance oscillation configuration, well-known techniques may be applied to these resonances and oscillations, and a detailed description thereof will be omitted.

As such, foreign substances are removed from the user's hand by the ultrasonic oscillation by the ultrasonic oscillation unit 20 and the foreign substances are separated into the washing water 112 of the washing water bottle 111 .

And the washing water 112 in the washing water tank 111 gradually increases the amount of foreign substances by washing by the continuous ultrasonic oscillation, so that the washing water 112 is gradually contaminated. Therefore, in the case of continuing to use the ultrasonic cleaner 100, contaminants in the washing water 112 are circulated to the sterilization system 122 to remove foreign substances and undergo a sterilization process. If necessary, the sterilization system 122 may be provided with one or more filters and an ultraviolet sterilization device. As for the technical configuration of the sterilization system, a known technical configuration may be applied, and a detailed description thereof will be omitted.

A detailed configuration of the resonance oscillation type ultrasonic generator system and the ultrasonic cleaner 100 will be described.

That is, it is provided on one side of the washing water bottle 111 in which the washing water 112 is contained, and is for the ultrasonic washing machine 100 including an ultrasonic vibrator 43 that oscillates ultrasonic vibrations, and the washing water bottle 111 is located on one side of the washing water bottle 111. It is to be provided with an ultrasonic oscillation unit 20 that allows ultrasonic oscillation to be made in the positioned ultrasonic vibrator 43 . When the ultrasonic frequency signal is amplified by the configuration of the ultrasonic oscillator 20 and transmitted to the ultrasonic oscillator 20 , ultrasonic vibrations are oscillated with respect to the washing water 112 contained in the washing water container 111 .

In general, this ultrasonic oscillation technology is generated by the electromagnetic energy of the capacitor (C) and the inductance (L), and is due to a resonance circuit such as the capacitor (C) and the inductance (L) _. is known as

For this resonance technology, a known technical configuration is used, and a piezoelectric element or the like can be used as the resonance oscillation element, and the resonance technology and characteristics of the piezoelectric element apply a known technology, and detailed description will be omitted. do.

Accordingly, the ultrasonic oscillator 20 includes a main controller 30, a frequency transmitter 41 that transmits an ultrasonic frequency signal, and an amplifier 42 that amplifies a frequency signal, and is amplified from the amplifier 42 It includes an ultrasonic vibrator 43 that oscillates by receiving the ultrasonic oscillation signal. The ultrasonic vibration is oscillated by an oscillation element such as a piezoelectric element of the ultrasonic vibrator 43 .

In addition, it is possible to scan the oscillation frequency by providing a scanner 44 that is connected between the amplifier 42 and the ultrasonic vibrator 43 to detect an ultrasonic signal.

It also includes a current detector 45 connected between the amplifier 42 and the ultrasonic vibrator 43 to detect a current. Thus, the current value can be detected and monitored.

And a power supply unit 22 for supplying power as a whole is provided.

Next, looking at the detailed configuration of the main controller 30, it includes a control unit 31 that processes overall information and generates a control signal to each member, and a memory 32 that stores set values or detected values. do.

In addition, the main controller 30 includes an oscillation signal control unit 33 that reads the oscillation frequency value stored in the memory 32 and transmits it to the frequency transmitter 41 to generate an ultrasonic oscillation signal.

In addition, a current determination unit 34 is provided that analyzes the current value detected by the current detector 45 and detects a maximum current value among current values during the process of transmitting the ultrasonic frequency signal for scanning. That is, the current value when the ultrasonic oscillation signal is applied to the ultrasonic vibrator 43 may be calculated.

In addition, the oscillation frequency adjusting unit 35 is provided for reading the ultrasonic frequency signal data value for scanning stored in the memory 32, searching the ultrasonic frequency signal matching the maximum current value, and updating the ultrasonic frequency signal for ultrasonic vibration.

That is, heat is generated by ultrasonic oscillation in the ultrasonic vibrator 43 due to the operation of the resonance circuit, and this heat increases the ultrasonic vibrator 43 and the washing water temperature. will be. In this case, the resonance frequency is newly determined, and the ultrasonic frequency for generating ultrasonic vibration is adjusted by the oscillation frequency adjusting unit 35 to oscillate.

Accordingly, the washing water constant temperature adjusting unit 36 is provided for stopping the ultrasonic frequency oscillation oscillating when it is determined that the washing water temperature sensing value is out of the predetermined normal operating temperature range. That is, in an environment where the temperature is too high, raw water is supplied to the washing water tank 111 to lower the temperature of the washing water 112 and the ultrasonic vibrator 43 as a whole so that the oscillation is made well.

Accordingly, looking at the detailed configuration of the ultrasonic vibrator 43 , the vibrator body 431 having a state of being adhered to one side of the washing water container 111 while forming the ultrasonic vibrator 43 body is provided.

In addition, an oscillation element 432 that performs ultrasonic oscillation by the ultrasonic signal of the frequency transmitter 41 is provided. As the oscillation element 432, a piezoelectric element may be mainly provided in a multi-layered configuration.

Further, the vibrator body 431 is provided with a cooling fin 433 formed on one side to form a plurality of blades to dissipate heat in the air. As such, the temperature rise of the ultrasonic vibrator 43 may be suppressed to some extent by dissipating heat to the surrounding air by the cooling fins 433 . Thus, stable ultrasonic oscillation is achieved. These cooling fins 433 may be provided on the side of the vibrator body 431 as in the example of FIG. 4 , and may be formed only under the vibrator body 431 or on multiple surfaces. Other cooling fins may be implemented in various forms such as a straight bar type, a wing type, a plate type, and a curved type, and may be determined and implemented according to the actual situation.

A resonance oscillation type ultrasonic wave generating system according to the present invention prepared as described above and a control method of the ultrasonic wave generating system by the ultrasonic cleaner 100 will be described.

That is, in the control method of the ultrasonic wave generating system for oscillating ultrasonic vibrations in the ultrasonic vibrator 43 provided on one side of the washing water container 111 containing the washing water 112 therein, the frequency transmitter under the control of the main controller 30 An oscillation step (S1) of oscillating ultrasonic vibrations in the ultrasonic vibrator 43 that has received the ultrasonic frequency signal transmitted in (41) is performed.

Looking at the detailed steps for the oscillation step (S1), the oscillation signal control unit 33 of the main controller 30 reads the oscillation frequency value stored in the memory 32 and transmits it to the frequency transmitter 41 side, and the frequency transmitter In step (41), an ultrasonic frequency signal transmitting step (S11) of transmitting an ultrasonic frequency signal is performed. In general, when the frequency is 20 KHz, the oscillation of the ultrasonic vibration in the ultrasonic vibrator 43 appears at the maximum, and in this case, the current value is also detected as the maximum.

Next, a transmission frequency amplification step (S12) of amplifying the frequency signal transmitted from the frequency transmitter 41 by the amplifier 42 is performed.

In addition, the ultrasonic vibration oscillation step (S13) of oscillating ultrasonic vibrations by an oscillation element in the ultrasonic vibrator 43 receiving the amplified frequency signal is performed. That is, it is detected by a number of tests that the ultrasonic vibration of the washing water 112 is oscillated at its maximum at a frequency of approximately 20KHz.

As the oscillation step (S1) as described above, a series of ultrasonic oscillation processes consisting of the ultrasonic frequency signal sending step (S11), the sending frequency amplifying step (S12) and the ultrasonic vibration oscillating step (S13) is based on a predetermined time or a predetermined period. Thus, an oscillation period of one cycle is achieved, and when the oscillation period of one week is completed, the main controller 30 transmits an 'end' control signal to stop the ultrasonic frequency signal transmission from the frequency transmitter 41.

As such, by the oscillation step (S1), the oscillation of the ultrasonic vibration is performed for a predetermined time and the control signal for stopping the transmission of the ultrasonic frequency signal from the main controller 30 to the frequency transmitter 41 side, which has determined that one oscillation cycle is completed. A transmission cycle completion determination step (S2) is performed. Accordingly, one oscillation period may be set to achieve an appropriate time or a predetermined period according to the amount of washing water, oscillation characteristics, and characteristics of washing action.

When one of these cycles is completed, it is initially operated with an oscillation cycle of 20 KHz as a preferred frequency, but when performing a long number of cycles, heat may be generated by ultrasonic oscillation in the ultrasonic vibrator 43, which is the oscillation unit. . In this case, the frequency of occurrence of ultrasonic vibration may be changed according to the value of the capacitor in the resonance configuration, and in this case, the intensity of ultrasonic vibration may be weakened.

Therefore, in this case, the frequency in the frequency transmitter 41 and the frequency in the ultrasonic vibrator 43 may be different, and thus the vibration efficiency may be increased by matching these frequencies. To this end, while performing the scanning process, the vibration frequency and current value are sensed during the scanning process.

That is, while the ultrasonic vibration is oscillated by the ultrasonic vibrator 43 by the ultrasonic frequency signal for scanning received from the frequency transmitter 41, the scanner 44 and the current detector 45 between the amplifier 42 and the ultrasonic vibrator 43 ) to perform a scanning step (S3) of detecting a frequency value and a current value and transmitting it to the main controller 30 side.

Looking at the detailed process of the scanning step (S3), the oscillation signal control unit 33 of the main controller 30 reads the oscillation frequency value for scanning stored in the memory 32 and transmits it to the frequency transmitter 41 side, The frequency transmitter 41 performs a scanning frequency signal transmitting step (S31) of transmitting an ultrasonic frequency signal for scanning.

And while the ultrasonic vibration is oscillated by the ultrasonic vibrator 43 by the ultrasonic frequency signal for scanning received from the frequency transmitter 41, the scanner 44 between the amplifier 42 and the ultrasonic vibrator 43 detects a frequency value. to perform a frequency signal scanning step (S32) transmitted to the main controller 30 side. Accordingly, when the frequency transmitter 41 generates the scanning frequency, the frequency of the power applied to the ultrasonic vibrator 43 is detected while the frequency is changed by adding or subtracting the frequency based on the preset initial frequency.

Next, while the ultrasonic vibration is oscillated by the ultrasonic vibrator 43 by the ultrasonic frequency signal for scanning transmitted from the frequency transmitter 41, the current signal from the current detector 45 between the amplifier 42 and the ultrasonic vibrator 43 A current signal detecting step (S33) for detecting and transmitting to the main controller 30 is performed. That is, the frequency and current values of the power applied to the ultrasonic vibrator 43 are sensed and transmitted to the main controller 30 side.

Accordingly, it can be adjusted in the range of almost 19KHz to 21KHz, centered on 20KHz, and the frequency at the time of scanning will be given a scanning value according to the settings or specifications of the device.

And the highest current value detection step of analyzing the current value detected by the current detector 45 by the current determining unit 34 of the main controller 30 to detect the highest current value among the current values during the process of transmitting the ultrasonic frequency signal for scanning (S34) is performed. The detected initial current value is stored in the memory 32 .

This means that when the ultrasonic frequency signal from the frequency transmitter 41 and the ultrasonic frequency signal from the ultrasonic vibrator 43 for generating the oscillation signal match as much as possible, the maximum current is supplied to the ultrasonic vibrator 43, and eventually applied After analyzing the maximum value of the current value, the ultrasonic vibration oscillated from the ultrasonic vibrator 43 is generated with the maximum intensity. When the ultrasonic vibration oscillates to the maximum like this, foreign substances on the user's hand are very effectively removed.

Next, the frequency matching the maximum current value is determined, and the oscillation process is performed using the frequency value determined in the next oscillation process.

That is, the oscillation frequency adjustment unit 35 of the main controller 32 reads the ultrasonic frequency signal data value for scanning stored in the memory 32 and searches for the ultrasonic frequency signal matching the maximum current value as an oscillation frequency value for ultrasonic vibration. An oscillation frequency adjustment step (S4) to be updated is performed.

The oscillation frequency adjustment step (S4) will be described in more detail.

That is, the oscillation frequency adjusting unit 35 of the main controller 30 reads the ultrasonic frequency signal data value for scanning stored in the memory 32, and the ultrasonic frequency matched to the maximum current value detected by the scanning step (S3). A peak current value matching frequency search step (S41) for searching a signal is performed. That is, the highest value of the current applied to the ultrasonic vibrator 43 is determined, and an ultrasonic frequency corresponding thereto is detected.

Next, in the oscillation frequency adjusting unit 35, the oscillation frequency value updating step (S42) of updating the ultrasonic frequency signal value matching the highest current value searched in the frequency searching step (S41) to the oscillation frequency value for ultrasonic vibration carry out

In addition, the update oscillation frequency value storage step (S43) of storing the oscillation frequency value for ultrasonic vibration oscillation updated by the oscillation frequency value updating step (S42) in the memory 32 by the oscillation frequency adjusting unit 35 is performed. .

Accordingly, in the process of generating ultrasonic vibration in the new frequency transmitter 41, the newly stored oscillation frequency is used, and thus the modified ultrasonic frequency transmission signal is transmitted.

Next, in most of the ultrasonic vibrator 43 , when the ultrasonic vibration oscillates to some extent, the temperature of the washing water 112 and the ultrasonic vibrator 43 rises due to the operation of the ultrasonic vibrator 43 . Therefore, as described above, the frequency value of the ultrasonic frequency vibration in the ultrasonic vibrator 43 is applied to the frequency transmitter 41 as calculated by the temperature rise, etc., and thus the frequency transmitter 41 is set as the newly set ultrasonic frequency value. to transmit an ultrasonic frequency signal.

Then, a new ultrasonic vibration transmission cycle is started, and a series of processes such as the oscillation step (S1) and the cycle completion determination step (S2) described above, and the scanning step (S3) are performed.

In performing the ultrasonic vibration oscillation process, the temperature of the washing water 112 may be measured through the water temperature sensor 17 provided on one side of the washing water tank 111 .

Therefore, by sensing the temperature of the washing water 112, when it is within a predetermined range, the continuous ultrasonic vibration transmission cycle is repeatedly performed.

On the other hand, if it is within a predetermined range, the frequency correction process according to the temperature rise can be performed through the scanning process. Also, when the temperature of the washing water 112 rises to a too high temperature, the oscillation process is stopped to prevent the temperature rise. . In addition, raw water may be supplied to lower the temperature of the washing water 112 .

That is, the washing water constant temperature adjustment step in which the washing water constant temperature adjustment unit 36 of the main controller 30 determines the wash water temperature sensing value and stops the ultrasonic frequency transmission for oscillating ultrasonic vibrations when it is determined that the temperature is out of the predetermined normal operating temperature range (S5) is performed.

Thus, the washing water temperature is maintained within a certain predetermined temperature range so that it becomes a constant temperature to achieve stable transmission of ultrasonic frequency signals.

A detailed process for the washing water constant temperature adjustment step (S5) will be described.

First, the washing water temperature detection step (S51) of transmitting the washing water temperature sensing value detected by the water temperature sensor 17 located on one side of the washing water tank 111 to the main controller 30 is performed.

And in the washing water constant temperature adjusting unit 36 of the main controller 30, a set temperature value comparison step (S52) of comparing and discriminating the detected washing water temperature sensing value and a preset washing water temperature value stored in the memory 32 is to be performed. . Thus, any one of a normal operation, a scan process, and a temporary operation stop may be performed by calculating the deviation value from the set temperature value.

That is, in the washing water constant temperature adjusting unit 36 of the main controller 30, the washing water temperature sensing value determined by the set temperature value comparison step (S52) is within the normal operating temperature range within the set temperature for operation, ultrasonic vibration is determined as a normal operating state that oscillates, and if the temperature exceeds the normal operating temperature range and is in the scanning temperature range that requires adjustment of the frequency value, the washing water constant temperature adjustment unit 36 sends a rescan signal to the main controller The step S53 is transmitted to step 30, and the ultrasonic frequency signal is stopped under the control of the main controller 30 and the process of the scanning step S3 is performed.

As in the above-described scanning step (S3), the scanning determination step (S53) corresponds to the case where the washing water temperature is formed in the scanning temperature range. frequency will be modified.

However, if the washing water temperature rises to too high a temperature, the ultrasonic wave generation process is temporarily stopped to induce the washing water temperature to decrease.

That is, when the washing water constant temperature adjusting unit 36 of the main controller 30 determines that the washing water temperature sensing value determined by the set temperature value comparison step S52 is a high temperature range outside the scanning temperature range, the oscillation stop temperature range, An oscillation stop step (S54) of transmitting a signal for stopping the oscillation of the ultrasonic frequency signal from the washing water constant temperature adjusting unit 36 to the main controller 30 is performed.

When the temperature is measured within a certain range, the transmission of the frequency signal is simply stopped for a predetermined time. However, if the temperature of the washing water has risen to a significant extent, it may be possible to forcibly lower the temperature of the washing water by supplying raw water with a relatively low temperature.

That is, the raw water supply step of supplying the raw water to the washing water tank 111 by transmitting a control signal of the raw water supply to the raw water supply 121 side by determining that the washing water temperature is in the high oscillation stop temperature range in the main controller 30 (S55) ) will be performed. When this raw water is additionally supplied, a drain port (not shown) is separately opened to prevent water from overflowing the washing water tank 111 .

As such, by supplying raw water having a relatively lower temperature than the washing water, the temperature of the washing water 112 is eventually lowered, and thus the temperature of the ultrasonic vibrator 43 can also be lowered.

When the washing water temperature is lowered to reach the normal operating temperature range, the scanning step is performed again to detect an appropriate ultrasonic frequency, and the oscillation step (S1) is continuously performed so that the user's hand washing is performed stably.

Although the embodiment of the present invention has been described in detail above, since one embodiment has been described so that a person of ordinary skill in the art can easily practice the present invention, by the description of the embodiment, The technical spirit of the present invention should not be construed as being limited.

100: ultrasonic cleaner 20: ultrasonic generator
30: main controller 41: frequency transmitter
43: ultrasonic vibrator 44: scanner
45: current detector

Claims (4)

An ultrasonic wave generating system comprising an ultrasonic vibrator (43) for oscillating ultrasonic vibrations,
and an ultrasonic oscillation unit 20 for generating ultrasonic oscillation in the ultrasonic vibrator 43,
The ultrasonic oscillator 20,
main controller 30;
a frequency transmitter 41 for transmitting an ultrasonic frequency signal;
an amplifier 42 for amplifying the frequency signal; and
Including an ultrasonic vibrator (43),
a scanner 44 connected between the amplifier 42 and the ultrasonic vibrator 43 to detect an ultrasonic signal; and
and a current detector (45) connected between the amplifier (42) and the ultrasonic vibrator (43) to detect a current.
The method of claim 1,
The main controller 30,
control unit 31;
memory 32;
an oscillation signal control unit 33 that reads the oscillation frequency value stored in the memory 32 and transmits it to the frequency transmitter 41;
a current determination unit 34 analyzing the current value detected by the current detector 45 and detecting a maximum current value among current values during the process of transmitting the ultrasonic frequency signal for scanning;
an oscillation frequency adjustment unit 35 that reads the ultrasonic frequency signal data value for scanning stored in the memory 32, searches for an ultrasonic frequency signal matching the maximum current value, and updates it as an oscillation frequency value for ultrasonic vibration; and
Resonant oscillation type ultrasonic generation system comprising a washing water constant temperature adjustment unit 36 that stops the ultrasonic frequency oscillation oscillating when it is determined that the washing water temperature sensing value is out of a predetermined normal operating temperature range .
In the control method of the ultrasonic wave generating system for oscillating ultrasonic vibration in the ultrasonic vibrator (43),
an oscillation step (S1) of oscillating ultrasonic vibrations in the ultrasonic vibrator 43 receiving the ultrasonic frequency signal transmitted from the frequency transmitter 41 under the control of the main controller 30;
In the oscillation step (S1), the oscillation of the ultrasonic vibration is performed for a predetermined time and the main controller 30, which determines that one oscillation cycle is completed, transmits a control signal for stopping the transmission of the ultrasonic frequency signal to the frequency transmitter 41 side a cycle completion determination step (S2);
A scanner 44 and a current detector 45 between the amplifier 42 and the ultrasonic vibrator 43 while oscillating ultrasonic vibrations in the ultrasonic vibrator 43 by the ultrasonic frequency signal for scanning transmitted from the frequency transmitter 41 a scanning step (S3) of detecting a frequency value and a current value and transmitting the detected frequency value and current value to the main controller 30 side; and
The oscillation frequency adjustment unit 35 of the main controller 32 reads the ultrasonic frequency signal data value for scanning stored in the memory 32, searches for an ultrasonic frequency signal matching the maximum current value, and updates it as an oscillation frequency value for ultrasonic vibration an oscillation frequency adjustment step (S4);
Control method of a resonance oscillation type ultrasonic wave generating system, characterized in that it comprises a.
4. The method of claim 3,
The oscillation step (S1) is,
The oscillation signal control unit 33 of the main controller 30 reads the oscillation frequency value stored in the memory 32 and transmits it to the frequency transmitter 41, and the frequency transmitter 41 transmits an ultrasonic frequency signal. step (S11);
a transmission frequency amplification step (S12) of amplifying the frequency signal transmitted from the frequency transmitter 41 by the amplifier 42; and
and an ultrasonic vibration oscillation step (S13) of oscillating ultrasonic vibrations by an oscillation element in the ultrasonic vibrator 43 that has received the amplified frequency signal,
The scanning step (S3) is,
The oscillation signal control unit 33 of the main controller 30 reads the oscillation frequency value for scanning stored in the memory 32 and transmits it to the frequency transmitter 41, and the frequency transmitter 41 transmits the ultrasonic frequency signal for scanning Scanning frequency signal sending step (S31);
While the ultrasonic vibration is oscillated by the ultrasonic vibrator 43 by the ultrasonic frequency signal for scanning transmitted from the frequency transmitter 41, the frequency value is detected by the scanner 44 between the amplifier 42 and the ultrasonic vibrator 43. A frequency signal scanning step (S32) transmitted to the main controller (30) side;
While the ultrasonic vibration is oscillated by the ultrasonic vibrator 43 by the ultrasonic frequency signal for scanning transmitted from the frequency transmitter 41, the current signal is detected by the current detector 45 between the amplifier 42 and the ultrasonic vibrator 43 a current signal sensing step (S33) for transmitting to the main controller 30 side; and
The highest current value detection step ( S34),
The oscillation frequency adjustment step (S4) is,
The oscillation frequency adjusting unit 35 of the main controller 30 reads the ultrasonic frequency signal data value for scanning stored in the memory 32, and the ultrasonic frequency signal matching the maximum current value detected by the scanning step (S3). a peak current value matching frequency search step (S41) of searching for;
an oscillation frequency value updating step (S42) of updating, in the oscillation frequency adjusting unit 35, an ultrasonic frequency signal value matching the highest current value searched in the frequency searching step (S41) to an oscillation frequency value for ultrasonic vibration; and
and an update oscillation frequency value storage step (S43) of storing the oscillation frequency value for ultrasonic vibration oscillation updated by the oscillation frequency value updating step (S42) in the memory 32 by the oscillation frequency adjusting unit 35 A control method of a resonance oscillation type ultrasonic wave generating system.

Images