KR102495981B1 - Supersonic waves oscillator system - Google Patents

Abstract

The present invention relates to an ultrasonic oscillator system. The ultrasonic oscillator system of the present invention can drive ultrasonic frequencies in a 15 to 40 Khz band with one oscillator, precisely detects a resonant frequency of a resonator and the oscillator by detecting the resonant frequency of the resonator through a frequency detection part, and improves reliability of a product by increasing durability of the ultrasonic oscillator by blocking transmission of vibration caused by the resonator to a bottom part. The ultrasonic oscillator system includes an input part; an oscillator; a resonator; a control part; a timer part; a display part; and a frequency detection part.

Description

Ultrasonic oscillator system {Supersonic waves oscillator system}

The present invention relates to an ultrasonic oscillator system, and more particularly, a single oscillator capable of driving an ultrasonic frequency in a band of 15 to 40 Khz, and detecting the resonant frequency of a resonator through a frequency detector to precisely detect the resonant frequency of the resonator and the oscillator. The present invention relates to an ultrasonic oscillator system that enhances reliability of a product by increasing durability of the ultrasonic oscillator by blocking transmission of vibration by a resonator to a bottom portion.

The audible frequency range that can be heard by the human ear is 20 Hz to 20 Khz. Ultrasound refers to vibrating sounds outside the audible frequency range. Sound is heard by the human ear by propagating from a vibration source by rapidly changing air pressure into high and low pressures due to mechanical vibration. Ultrasound is a frequency higher than the audible frequency band (20-20000Hz) that humans can hear, that is, 20 Khz or higher.

And an ultrasonic oscillator is a device that generates ultrasonic waves in a medium, and uses machines, piezoelectric effects, magnetostrictive effects, electromagnetic forces, and hydrodynamic forces used to generate ultrasonic vibrations. It is a device that makes high-frequency electric vibration by an oscillator, converts it into mechanical vibration using a magnetostrictive resonator or piezoelectric resonator, and then mechanically amplifies or transmits it using a horn. It is used for a wide range of purposes, but is often used for cleaning. .

A washing machine using an existing single-frequency ultrasonic oscillator uses a single frequency for ultrasonic waves. Usually, 28Khz, 40Khz, etc. are widely used, and depending on the spatial and temporal location of the ultrasonic wave, the propagation frequency and the reflection frequency are matched, resulting in a stationary state in space. That is, there is a part with strong power and a part with no power depending on the level of the liquid, so that the washing material is divided into a part that can be washed well and a part that does not, and the washing becomes uneven.

In addition, there is damage to the product due to a part with strong power or cleaning stains due to a standing wave phenomenon, and there is inconvenience in frequency matching during A/S due to incompatibility between the oscillation part and the vibrating part.

In addition, existing ultrasonic oscillators are equipped with many input switches and look crude in appearance, and there is a problem in that the manufacturing cost is high due to the use of many parts, so a solution is required.

Republic of Korea Patent Registration No. 10-1339614 (2014.01.03. Notice)

The present invention has been made to solve the above problems, and an object of the present invention is to provide an ultrasonic oscillator system capable of driving an ultrasonic frequency of 15 to 40 Khz band with one oscillator.

Another object of the present invention is to provide an ultrasonic oscillator system that precisely detects the resonant frequency of the resonator and the oscillator by detecting the resonant frequency of the resonator through a frequency detector.

Another object of the present invention is to provide an ultrasonic oscillator system that enhances the reliability of a product by increasing the durability of the ultrasonic oscillator by blocking transmission of vibration by a resonator to a bottom portion.

The object of the present invention is not limited to the tasks mentioned above, and other tasks not mentioned will be clearly understood by those skilled in the art from the following description.

The present invention for solving the above problems is, in the ultrasonic oscillator system 10 for generating ultrasonic waves, the input unit 11 for receiving a user's command; An oscillator 12 generating a plurality of currents having a frequency of 15 to 40 kHz or more; a resonator 13 that electrically vibrates in tune with each of the frequencies of the plurality of currents; a control unit 14 controlling operations of the oscillator 12 and the resonator 13; a timer unit 15 counting the signal time during which the oscillator 12 operates; a display unit 16 for displaying state information related to the oscillator 12 while the oscillator 12 is operating; and a frequency detection unit 40 for precisely detecting the resonant frequencies of the resonator 13 and the oscillator 12 by detecting the resonant frequency of the resonator 13, and the oscillator 12 uses the input unit 11 an oscillation unit 17 generating an oscillation frequency current according to a command input through; a power amplifier 18 for amplifying the oscillation frequency current; and an impedance matching unit 19 that matches the amplified oscillation frequency current and outputs the plurality of currents, wherein the ultrasonic oscillator system 10 includes a body part 20 as a basic skeleton; It is characterized in that it includes a vibration damping unit 30 mounted on the lower portion of the body unit 20 to attenuate vibration generated by the resonator 13 .

The vibration damping unit 30 includes a coupling shaft 31 protruding from the lower portion of the body unit 20; A first anti-vibration member 32 coupled to the coupling shaft 31; a second anti-vibration member 33 coupled to the first anti-vibration member 32 in a wrapping manner; It includes a seating body 34 coupled to the second anti-vibration member 33 to be seated on the bottom surface, and at least one coupling protrusion 321 protrudes from the outer circumferential surface of the first anti-vibration member 32. And, the second anti-vibration member 33 includes a coupling groove 331 formed on an inner circumferential surface so that the coupling protrusion 321 is coupled; at least one anti-vibration rib 332 protruding from the outer circumferential surface of the second anti-vibration member 33 and in close contact with the inner circumferential surface of the seating space 341; At least one buffer rib 333 protrudes from both side surfaces of the second anti-vibration rib 33 and adheres to the inner surface of the seating body 34, and the seating body 34 has an open top. As it is provided with a seating space 341 inside, the central portion is formed through the coupling shaft 31 is coupled.

A grounding part 35 is provided on the lower part of the seating body 34 to absorb vibration transmitted from the seating body 34, and the grounding part 35 is provided on both lower sides of the seating body 34. Binding protrusions 351 each protruding to be coupled; a ground protrusion 352 protruding from the bottom of the binding protrusion 351 and grounded to a bottom surface; The ground surface 353, which is connected between the binding protrusion 351 and the ground protrusion 352 on one side and between the binding protrusion 351 and the ground protrusion 352 on the other side, forms a downwardly curved central portion and has its own elasticity. The lower end of the ground surface 353 protrudes downward more than the lower end of the ground protrusion 352, and when the ultrasonic oscillator system 10 is seated on the floor, it is elastically deformed to increase the grounding force and vibrate It is characterized by absorbing.

According to the present invention, there is an effect that can drive the ultrasonic frequency of 15 ~ 40Khz band with one oscillator.

In addition, according to the present invention, there is an effect of precisely detecting the resonant frequency of the resonator and the oscillator by detecting the resonant frequency of the resonator through the frequency detector.

In addition, the present invention has the effect of improving the reliability of the product by increasing the durability of the ultrasonic oscillator by blocking transmission of vibration by the resonator to the bottom portion.

1 is an overall picture of the ultrasonic oscillator system of the present invention.
2 is a block diagram of the ultrasonic oscillator system of the present invention.
3 is a side configuration diagram showing a vibration damping unit of the ultrasonic oscillator system of the present invention.
4 is a plan configuration diagram showing a vibration damping unit of the ultrasonic oscillator system of the present invention.

Hereinafter, various embodiments will be described in more detail with reference to the accompanying drawings. The embodiments described in this specification may be modified in various ways. Certain embodiments may be depicted in the drawings and described in detail in the detailed description. However, specific embodiments disclosed in the accompanying drawings are only intended to facilitate understanding of various embodiments. Therefore, the technical idea is not limited by the specific embodiments disclosed in the accompanying drawings, and it should be understood to include all equivalents or substitutes included in the spirit and technical scope of the invention.

Terms including ordinal numbers, such as first and second, may be used to describe various components, but these components are not limited by the above terms. The terminology described above is only used for the purpose of distinguishing one component from another.

In this specification, terms such as "comprise" or "having" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded. It is understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but other elements may exist in the middle. It should be. On the other hand, when an element is referred to as “directly connected” or “directly connected” to another element, it should be understood that no other element exists in the middle.

Meanwhile, a “module” or “unit” for a component used in this specification performs at least one function or operation. And a "module" or "unit" may perform a function or operation by hardware, software, or a combination of hardware and software. In addition, a plurality of “modules” or “units” other than “modules” or “units” to be executed in specific hardware or to be executed in at least one processor may be integrated into at least one module. Singular expressions include plural expressions unless the context clearly dictates otherwise.

In addition, in describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be abbreviated or omitted.

1 is an overall picture of the ultrasonic oscillator system of the present invention, and FIG. 2 is a block diagram of the ultrasonic oscillator system of the present invention.

The present invention provides an ultrasonic oscillator system (10) for generating ultrasonic waves, comprising: an input unit (11) for receiving a user's command; Oscillator 12 for generating a plurality of currents having a frequency of 15 ~ 40Khz or more; a resonator 13 that electrically vibrates in tune with each of the frequencies of the plurality of currents; a control unit 14 controlling operations of the oscillator 12 and the resonator 13; a timer unit 15 counting the signal time during which the oscillator 12 operates; a display unit 16 for displaying state information related to the oscillator 12 while the oscillator 12 is operating; and a frequency detection unit 40 for precisely detecting the resonant frequencies of the resonator 13 and the oscillator 12 by detecting the resonant frequency of the resonator 13, and the oscillator 12 uses the input unit 11 an oscillation unit 17 generating an oscillation frequency current according to a command input through; a power amplifier 18 for amplifying the oscillation frequency current; and an impedance matching unit 19 that matches the amplified oscillation frequency current and outputs the plurality of currents, and the ultrasonic oscillator system 10 includes the body part 20 as a basic skeleton. ) includes a vibration damping unit 30 mounted on the lower portion and damping vibration generated by the resonator 13 .

The input unit 11 includes a power input window for supplying power and adjusting the ultrasonic intensity, a frequency input window for setting the ultrasonic oscillation frequency, a search switch for finding the frequency of the resonator, and changing the frequency sweep. It includes a mode (Auto/Manual) switch, a communication switch for remote control function, a time setting window to set operating time, and a start/stop/reset switch to control start and stop. .

When a rough frequency of the resonator is input in the frequency input window and a search switch is pressed, the exact resonant frequency of the resonator is input.

In this state, if a start switch is pressed to generate ultrasonic waves and an appropriate intensity of ultrasonic waves is adjusted, ultrasonic waves are generated as an appropriate current flows through the resonator.

The oscillator 12 generates an oscillation frequency current in response to a command input to the input unit 11, an oscillation unit 17 that detects the oscillation frequency current, and a power amplifier that amplifies the oscillation frequency current received from the oscillation unit 17. It includes an impedance matching unit 19 that matches the impedance of the current output from the unit 18 and the power amplification unit 18 to output a plurality of powers.

The controller 14 has an impulse control function to turn on/off the ultrasonic output at regular time intervals.

The controller 14 detects whether the resonator 13 is connected, and if the resonator 13 is not connected, heat is applied to the semiconductor device implementing the power amplifier 19 to prevent damage to the semiconductor device. To do this, the oscillator 12 is automatically turned off to automatically stop the operation of the oscillator 12.

The timer unit 15 sets an operating time for the controller 14, and when the set operating time ends, the oscillator 12 stops operating according to a control command from the controller 14.

The display unit 16 visually expresses the actual current value, operating frequency, and timer that change according to the increase or decrease in the output of the ultrasonic wave according to the control of the display board, and is composed of a 5-inch touch screen.

The impedance matching unit 19 matches the impedance of the current amplified by the power amplification unit 18 and outputs the current to the resonator 13 .

In addition, as shown in FIGS. 3 and 4 , the vibration attenuator 30 is mounted on the lower part of the body 20 , which is the basic skeleton of the ultrasonic oscillator system 10 .

A coupling shaft 31 protrudes from a lower portion of the body 20, and a first anti-vibration member 32 is coupled to the coupling shaft 31.

The first anti-vibration member 32 is formed in a cylindrical shape so that the central portion penetrates and is coupled to the coupling shaft 31, and at least one coupling protrusion 321 is protruded from an outer circumferential surface of the first anti-vibration member 32. .

On the outer side of the first anti-vibration member 32, a second anti-vibration member 33 coupled to surround the first anti-vibration member 32 is provided.

The second anti-vibration member 33 has a 'U' shape with an open top, and has a structure in which the first anti-vibration member 320 is fitted at the top.

A coupling groove 331 is formed on the inner circumferential surface of the second anti-vibration member 33 so that the coupling protrusion 321 of the first anti-vibration member 32 is coupled.

At least one anti-vibration rib 332 protrudes from the outer circumferential surface of the second anti-vibration member 33 and is coupled to the seating body 34, and at least one or more buffer ribs are provided on both sides of the second anti-vibration member 33 ( 333) is formed.

The second anti-vibration member 33 is coupled to the inside of the seating body 34 seated on the bottom surface, and the seating body 34 is seated so that the second anti-vibration member 33 is seated therein while the top is opened. A space 341 is provided.

In addition, a grounding part 35 mounted on the lower portion of the seating body 34 to absorb vibration transmitted from the seating body 34 may be provided.

The ground portion 35 has binding protrusions 351 protruding upward so as to be bound to grooves formed on both lower portions of the mounting body 34, respectively. ) and a ground protrusion 352 protruding in the opposite direction is formed and grounded to the bottom surface.

A thin plate-shaped ground surface 353 is provided between the ground protrusion 352 and the ground protrusion 352, and the ground surface 352 is provided on the other side between the binding protrusion 351 and the ground protrusion 352 on one side. It is connected between the binding protrusion 351 and the ground protrusion 352, and the central portion has its own elasticity while forming a downwardly curved shape.

Here, the lower end of the ground surface 353 protrudes downward more than the lower end of the ground protrusion 352 by (h) and is in a lower position, and when the ultrasonic oscillator system 10 is seated on the floor, the ground surface (353) is seated while being elastically deformed.

As described above, when the ground protrusion 352 and the ground surface 353 are grounded to the bottom surface, vibration is absorbed to increase the stability of the device.

In addition, a frequency detection unit 40 for precisely detecting the resonant frequency of the resonator and the oscillator by detecting the resonant frequency of the resonator may be further provided.

As a method of detecting the frequency in the past, an expensive impedance analyzer was used to detect the resonant frequency, but it is too expensive and has a cost disadvantage.

This impedance analyzer is a device that can be used in various fields other than the ultrasonic transducer system function, and in fact, it is inefficient because there are many functions that are more than necessary in places where only ultrasonic transducer is used.

Since the frequency detector 40 can detect the resonant frequency without using an expensive impedance analyzer, there is a great cost saving effect.

The frequency detector 40 measures the amount of current and voltage flowing through the resonator 13 by changing the resonant frequency.

When resonance of the resonator 13 occurs, the current becomes a maximum value and the voltage becomes a minimum value.

The frequency detection unit 40 constitutes a circuit unit capable of measuring current and voltage, and detects a resonant frequency by receiving a signal detected by the circuit unit in a microcomputer.

Although the preferred embodiments of the present invention have been shown and described above, the present invention is not limited to the specific embodiments described above, and is common in the art to which the present invention pertains without departing from the gist of the present invention claimed in the claims. Of course, various modifications are possible by those with knowledge of, and these modifications should not be individually understood from the technical spirit or prospect of the present invention.

10: ultrasonic oscillator system
11: input unit
12: Oscillator
13: resonator
14: control unit
15: timer unit
16: display
17: oscillation part
18: power amplifier
19: impedance matching unit
20: body part
30: vibration damping unit
31: Coupling shaft
32: first anti-vibration member
33: second anti-vibration member
34: seating body
35: grounding part
40: frequency detection unit

Claims (4)

In the ultrasonic oscillator system 10 for generating ultrasonic waves,
an input unit 11 for receiving a user's command;
Oscillator 12 for generating a plurality of currents having a frequency of 15 ~ 40Khz or more;
a resonator 13 that electrically vibrates in tune with each of the frequencies of the plurality of currents;
a control unit 14 controlling operations of the oscillator 12 and the resonator 13;
a timer unit 15 counting the signal time during which the oscillator 12 operates;
a display unit 16 for displaying state information related to the oscillator 12 while the oscillator 12 is operating;
A frequency detection unit 40 for precisely detecting the resonant frequency of the resonator 13 and the oscillator 12 by detecting the resonant frequency of the resonator 13,
The oscillator 12 includes an oscillation unit 17 generating an oscillation frequency current according to a command input through the input unit 11;
a power amplifier 18 for amplifying the oscillation frequency current;
And an impedance matching unit 19 for outputting the plurality of currents by matching the amplified oscillation frequency current,
The ultrasonic oscillator system 10,
a body part 20 which is a basic skeleton;
It includes a vibration damping unit 30 mounted on the lower portion of the body unit 20 to attenuate vibration generated by the resonator 13,
The vibration damping unit 30,
Coupling shaft 31 protruding from the lower part of the body part 20;
A first anti-vibration member 32 coupled to the coupling shaft 31;
a second anti-vibration member 33 coupled to the first anti-vibration member 32 in a wrapping manner;
It includes a seating body 34 coupled to the second anti-vibration member 33 to be seated on the bottom surface,
At least one coupling protrusion 321 is protruded from the outer circumferential surface of the first anti-vibration member 32,
The second anti-vibration member 33,
A coupling groove 331 formed on an inner circumferential surface so that the coupling protrusion 321 is coupled;
at least one anti-vibration rib 332 protruding from the outer circumferential surface of the second anti-vibration member 33 and in close contact with the inner circumferential surface of the seating space 341;
At least one buffer rib 333 protrudes from both sides of the second anti-vibration member 33 and adheres to the inner surface of the seating body 34,
The seating body 34,
As the upper part is opened, a seating space 341 is provided therein, and the central part is formed through the coupling so that the coupling shaft 31 is coupled.
A grounding portion 35 is provided on the lower portion of the seating body 34 to absorb vibration transmitted from the seating body 34,
The grounding part 35,
Binding protrusions 351 protruding to be coupled to both lower portions of the seating body 34, respectively;
a ground protrusion 352 protruding from the bottom of the binding protrusion 351 and grounded to a bottom surface;
The ground surface 353, which is connected between the binding protrusion 351 and the ground protrusion 352 on one side and between the binding protrusion 351 and the ground protrusion 352 on the other side, forms a downwardly curved central portion and has its own elasticity. are provided,
The lower end of the ground surface 353 protrudes further downward than the lower end of the ground protrusion 352, and when the ultrasonic oscillator system 10 is seated on the floor, it is elastically deformed to increase the grounding force and absorb vibration. An ultrasonic oscillator system, characterized in that. The method of claim 1,
The frequency detector 40 measures the amount of current and voltage flowing through the resonator 13 by changing the resonant frequency, and when resonance of the resonator 13 occurs, the current becomes the maximum value and the voltage becomes the minimum value, The frequency detection unit 40 constitutes a circuit unit capable of measuring current and voltage, and receives a signal detected by the circuit unit in a microcomputer to detect a resonant frequency. Ultrasonic oscillator system.
delete delete

Images