WO2017135513A1 - Ultrasonic toothbrush - Google Patents

Ultrasonic toothbrush Download PDF

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Publication number
WO2017135513A1
WO2017135513A1 PCT/KR2016/004332 KR2016004332W WO2017135513A1 WO 2017135513 A1 WO2017135513 A1 WO 2017135513A1 KR 2016004332 W KR2016004332 W KR 2016004332W WO 2017135513 A1 WO2017135513 A1 WO 2017135513A1
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WO
WIPO (PCT)
Prior art keywords
diaphragm
ultrasonic
ultrasonic toothbrush
toothbrush
streaming
Prior art date
Application number
PCT/KR2016/004332
Other languages
French (fr)
Korean (ko)
Inventor
조시래
Original Assignee
조시래
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 조시래 filed Critical 조시래
Publication of WO2017135513A1 publication Critical patent/WO2017135513A1/en

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    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B13/00—Brushes with driven brush bodies or carriers
    • A46B13/02—Brushes with driven brush bodies or carriers power-driven carriers
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B13/00—Brushes with driven brush bodies or carriers
    • A46B13/02—Brushes with driven brush bodies or carriers power-driven carriers
    • A46B13/04—Brushes with driven brush bodies or carriers power-driven carriers with reservoir or other means for supplying substances
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B13/00—Brushes with driven brush bodies or carriers
    • A46B13/02—Brushes with driven brush bodies or carriers power-driven carriers
    • A46B13/04—Brushes with driven brush bodies or carriers power-driven carriers with reservoir or other means for supplying substances
    • A46B13/06—Brushes with driven brush bodies or carriers power-driven carriers with reservoir or other means for supplying substances with brush driven by the supplied medium
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B15/00—Other brushes; Brushes with additional arrangements

Definitions

  • the present invention relates to a toothbrush for cleaning the oral cavity including teeth, and more particularly, a small ultrasonic diaphragm is provided on the head of the toothbrush to supply energy to the liquid contained in the mouth at the resonant frequency to generate cavitation and streaming. It relates to an ultrasonic toothbrush.
  • FIG. 1 Such a conventional ultrasonic toothbrush is disclosed in FIG. 1.
  • the battery pack 2 for charging and the driving circuit input terminal are connected to the handle 1, and divided into partitions 4 therebetween.
  • the driving circuit for generating the ultrasonic vibration is connected to the metal electrode ring 11 of the ultrasonic vibrator 20 by two wires 11 'and the ultrasonic vibrator has a rear metal elastic body (backing mass) 10 of the ultrasonic vibrator. Between the separators 5 of the ultrasonic vibrator, silicon elastic rubber 8 is supported and two ring-shaped piezoelectric ceramics 9 are arranged in parallel with the front metal elastic body (front mass) 12 and the rear metal elastic body 10 in parallel. It is bolted through the hole.
  • the silicone elastic rubber 8 is preferably a silicone elastic rubber or a resin may be inserted in order to be elastically fitted to the rear metal elastic body 10 of the ultrasonic vibrator, it may be used other materials that can be elastically fitted.
  • a locking jaw (13) in the ultrasonic generating horn and the locking jaw is a silicone rubber packing (7) for waterproofing in the groove (6) of the upper handle It is fixed by).
  • the handle portion 1 configured as described above is fastened by the bristle portions 16 and 17 and the locking jaw 13 in which the acoustic impedance matching layer 14 is installed for easy transmission of ultrasonic waves.
  • the acoustic impedance matching layer 14 is installed at an angle of 0 ⁇ 45 ° as shown by the reference numeral 15 can be adjusted so as to transmit the optimal ultrasonic vibration
  • the acoustic impedance matching layer is the front metal elastic body for ultrasonic generation (front mass; 12)
  • acoustic impedance are described using similar materials.
  • the present invention for solving this problem is to provide an ultrasonic toothbrush that can make the diaphragm of the ultrasonic transducer into a compact and at the same time generates a stream with a strong cavitation to wash the mouth, including teeth.
  • the ultrasonic transducer generates a frequency suitable for the mode, such as cleaning mode, whitening mode, gargle mode, etc., the frequency is tracked to be resonant regardless of the size of the load, and adjust the intensity of vibration in each mode used
  • a frequency suitable for the mode such as cleaning mode, whitening mode, gargle mode, etc.
  • Another object of the present invention is to provide a dual mode using another oscillator using a driving power source having a half-wave difference in driving voltage, and to provide an energy regeneration circuit that reduces current consumption when using the dual mode. do.
  • Ultrasonic toothbrush for solving this problem includes a body including an ultrasonic transducer including a vibrator and a controller mounted with a microcontroller for controlling the operation of the transducer, and a diaphragm formed of a metal elastic body And a diaphragm cover to which the diaphragm is inserted and fixed, and a suction streaming hole at one side of the diaphragm cover, and a head part having a spray streaming hole at the other side thereof, and a connection part for mechanically connecting the head and the body. Can be achieved.
  • the ultrasonic vibration generated in the body is transmitted to the diaphragm through the connection part, and the liquid sucked into the suction streaming hole is vibrated by the diaphragm to be ejected into the jet stream.
  • the diaphragm comprises one surface as an inclined cutting surface, the angle formed by the inclined cutting surface and the connecting portion is formed at an acute angle, the suction streaming hole is configured on the surface with the edge of the end surface of the diaphragm, the ejection streaming hole Is configured at a position opposite to the inclined cut surface of the diaphragm, and the ejection streaming hole is configured at a relatively far distance from the suction streaming hole in the inclined cut surface of the diaphragm.
  • the diaphragm is configured such that all surfaces except the front surface of the diaphragm are in close contact with the inside of the diaphragm cover, and the head part is configured to be coupled or separated from one end of the connecting portion, and provides a gargling head composed of a diaphragm having two inclined surfaces. Do it.
  • the vibrator is configured to vibrate.
  • the microcontroller may be configured to keep the resonance state by tracking the selected resonance frequency and to adjust the intensity of vibration in the selected mode.
  • the body is composed of a single mode consisting of one ultrasonic transducer or two ultrasonic transducers, and configured in a dual mode with a middle mass interposed between each ultrasonic transducer, one middle in the dual mode A mass is used, but if necessary, two middle masses are used, and a leaf spring is interposed between each middle mass.
  • a current regeneration circuit in the controller, to use an application specific integrated circuit for the current regeneration circuit, and to use a zero cross signal as one of the inputs.
  • the ultrasonic toothbrush of the present invention there is an effect that can be washed with a liquid such as water in the gums between the teeth that cannot be wiped with a conventional toothbrush.
  • the ultrasonic toothbrush of the present invention it is possible to eliminate various germs that propagate in the oral cavity, thereby preventing various diseases that may occur due to the germs, and removing the smell of the mouth.
  • the ultrasonic toothbrush of the present invention can be easily used even children, the elderly, patients because it can be cleaned even if the mouth bite.
  • FIG. 1 is a view showing an example of a conventional ultrasonic toothbrush
  • FIG. 4 is an exploded perspective view of the head of the present invention.
  • FIG. 5 is a perspective view of the head of the present invention.
  • FIG. 6 is an enlarged cross-sectional view of the head of the present invention.
  • FIG. 7 is a perspective view of a gargle type diaphragm cover of the present invention.
  • FIG. 8 is a sectional view of a head composed of a gargle diaphragm
  • FIG. 10 is a perspective view showing an example of the ultrasonic transducer in dual mode
  • FIG. 11 is a diagram showing an example of the middle mass configuration in the dual mode of the present invention.
  • FIG. 13 is a main configuration diagram of a drive voltage generator of the present invention.
  • FIG. 15 is a main configuration diagram of a resonant frequency tracking unit according to an embodiment of the present invention.
  • 16 is a view showing an example of resonant frequencies for each frequency band of the present invention.
  • FIG. 17 is a main configuration diagram of a current regeneration circuit according to an embodiment of the present invention.
  • 19 is a diagram illustrating a trigger signal of each electronic switch according to a driving power supply of the transducer.
  • diaphragm cover 121 cover body
  • suction stream hole 126 jet stream hole
  • connection part 310 diaphragm connection bar
  • transducer 411 front mass
  • control unit 421 MCU
  • first the first component
  • second the second component
  • first component the first component
  • first component may be named a second component
  • second component similarly, the second component may also be named a first component
  • first item, second item and / or third item may be given from two or more of the first, second or third items as well as the first, second or third items. Any combination of the possible items.
  • Figure 2 is a perspective view of the ultrasonic toothbrush of the present invention
  • Figure 3 is a cross-sectional view of the ultrasonic toothbrush of the present invention.
  • the ultrasonic toothbrush of the present invention generates a large amount of cavitation in the liquid in the oral cavity, increases the size of the cavitation, and generates streaming in the liquid to move the cavitation to the object to be cleaned, such as the tooth to be cleaned.
  • An ultrasonic toothbrush having a device.
  • the ultrasonic toothbrush of the present invention comprises a body 400, the head 100, and the connection portion 300 for connecting the body 400 and the head 100, the general electric toothbrush without bristles and Have a similar appearance.
  • the head part 100 includes a diaphragm 110 and a diaphragm cover 120 surrounding the diaphragm 110, and an ultrasonic transducer 410 causing vibration in the body 400 which can be held by a hand.
  • a control unit 420 having a circuit for driving the transducer 410
  • the connection portion 300 for connecting the head 100 and the body 400 is a diaphragm connecting rod 310 and the diaphragm 110 and It connects the ultrasonic transducer 410 and configures the body connector 500 of one side of the diaphragm connection bar 310 and a part of the body 400 by a flexible material such as silicon, urethane or rubber so as not to disturb the vibration. .
  • the body 400 is electrically connected to the internal rechargeable battery 402 (rechargable battery) and the rechargeable battery 402 in the direction of the connecting portion 300 in sequence and operates the transducer 410 and controls the ultrasonic toothbrush.
  • the control unit 420 formed of a printed circuit board and the ultrasonic transducer 410 are configured to be positioned.
  • the head part 100 is connected to the diaphragm connecting rod 310 to configure the diaphragm 110 to vibrate in the horizontal direction 311 with the body 400 (see FIG. 3).
  • the head portion 100 is composed of a diaphragm cover 120 is inserted into the diaphragm 110.
  • An angle ⁇ 1 formed between the inclined cutting surface 112 of the diaphragm 110, that is, the surface in contact with the liquid in the oral cavity, and the direction of the diaphragm connecting rod 310, that is, the vibration direction 311 of the vibrator 415, has an acute angle smaller than 90. (See Figure 4).
  • the diaphragm 110 should be configured such that all surfaces of the diaphragm except for the inclined cutting surface 112 are in close contact with the inside of the diaphragm cover 120. Pushed out.
  • the inclined cutting surface 112 allows the liquid in front of the diaphragm 110 to form a stream in a direction perpendicular to the inclined surface that is different from the vibration direction (arrow direction).
  • the present invention is characterized in that the angle ⁇ 1 of the inclined cutting surface 112 of the diaphragm 110 and the diaphragm connecting rod 310 is an acute angle (see FIG. 6).
  • the diaphragm cover 120 should be made of a material having a different acoustic impedance from the diaphragm 110, and be made of a material such as rubber or a plastic having flexibility in contact with teeth in the oral cavity, and a cover body 121 having a hollow horseshoe shape.
  • the suction guide hole 125 and the ejection streaming hole 126 formed at both ends of the streaming guide 124, the diaphragm cover 120 and both ends of the streaming guide 124, and the cover body 121 and the streaming guide 124 It comprises a left cover 122 and the right cover 123 to be coupled to support from both sides.
  • the diaphragm 110 is inserted into the hollow cover body 121, and the cover body 121 and the streaming are covered by the left and right covers 122 and 123 so that both ends of the cover body 121 and the streaming guide 124 are spaced apart by a predetermined interval.
  • the guide 124 is spaced apart from each other, and the suction streaming hole 125 and the ejection streaming hole 126 are formed by both ends of the cover body 121 and the streaming guide 124 spaced apart from each other.
  • the ejection streaming hole 126 is also inclined toward the inclined incision surface 112 so that the liquid ejected by the inclined incision surface 112 of the diaphragm can be smoothly discharged.
  • the vibration of the diaphragm 110 generates cavitation in the limited liquid in the diaphragm cover 120, and the streaming generated by the inclined cutting surface 112 of the diaphragm 110 pushes the cavitation through the ejection streaming hole 126. . Therefore, the ejection streaming hole 126 is more effective to be formed in the opposite direction facing the inclined cutting surface 112 of the diaphragm 110.
  • This jet streaming will form a sound pressure on the edge 113 side of the diaphragm. Therefore, when the hole is made along the edge of the diaphragm 113, the external liquid enters the inside through the suction streaming hole 125 at the formed negative pressure.
  • the suction streaming hole 125 is configured on the surface with the edge 113 of the end face of the diaphragm, and the ejection streaming hole 126 is configured at the end corner of the position opposite to the inclined incision surface of the diaphragm, but the oblique incision of the diaphragm It is preferable to configure the surface 112 at a relatively far distance from the suction streaming hole 126.
  • the ejection streaming hole 126 is located at the corner where one end of the cover body 121 and the streaming guide 124 meet. The reason is that the area where these two sides meet at an angle collects streaming and it is easy to eject cavitation in every corner during tooth cleaning.
  • the diaphragm cover 120 should be in close contact with all other surfaces except the front surface of the diaphragm 110. This is because streaming efficiency is improved only when this is done. This is also a feature of the present invention.
  • Head portion 100 composed of a diaphragm 110 and the diaphragm cover 120 is composed of a female screw 111 on the back of the diaphragm 110 to be coupled to or separated from the diaphragm connecting rod 310, the diaphragm connecting rod coupled thereto
  • the male screw 311 is formed at the end of the 310, so that the female screw 111 of the diaphragm 110 and the male screw 311 of the diaphragm connecting rod 310 are screwed together.
  • the cover body 121 has an insertion hole 127 in which one side of the diaphragm connecting rod 310 is inserted so that the diaphragm 110 is connected to the diaphragm connecting rod 310.
  • the male screw 311 of the diaphragm connecting rod 310 penetrates the insertion hole 127 to be coupled to the diaphragm 110.
  • the reason for doing so is to mount the head 200 having other functions as necessary.
  • the present invention is characterized in that it is possible to separate or couple the head 200 in the vibrator connecting rod 310.
  • Ultrasonic toothbrushes for example, can provide a gargle mode.
  • the head 200 for gargling use is illustrated.
  • the first and second streaming guides 224a and 224b are spaced apart on the front surface of the diaphragm cover 200, and the first and second streaming guides ( A jet streaming hole 226 is formed between the 224a and 224b, and the first and second suction streaming holes 225a and 225b are formed between both ends of the cover body 221 and the first and second streaming guides 224a and 224b. ).
  • the head 200 for the gargling having such a configuration inserts the diaphragm 210 into the hollow cover body 221, and both ends of the cover body 221 and the first and second streaming guides 224a and 224b are spaced at predetermined intervals.
  • the first and second streaming guides 224a and 224b are coupled to the left and right covers 222 and 223 so as to be spaced apart from each other.
  • the goggle diaphragm cover 220 should also be made of a material different from the diaphragm 210 and its acoustic impedance. Cut to the intersection of the imaginary short vertical center line and the long horizontal center line, cut to have a left and right inclined plane, and formed into a first inclined plane and a second inclined plane, but the direction of each of the incision plane and the diaphragm connecting rod 310 The angle formed by the vibration direction 311 of the vibrator 415 is formed to have acute angles ⁇ 1 and ⁇ 2 of less than 90 °, respectively.
  • the liquid introduced into the first and second suction streaming holes 225a and 225b ejects the liquid introduced into the spray streaming hole 226 located in the horizontal front by vibrating the two inclined cut surfaces.
  • the body 400 includes an ultrasonic transducer 410 that causes vibration, a controller 420 having a circuit for driving the transducer 410, and a connection part connecting the head 100 and the body 400 ( 300 connects the diaphragm 110 to the diaphragm connecting rod 310 and is connected to one side of the diaphragm connecting rod 310 and an elastic material 500 such as silicone or urethane surrounding a part of the body 400.
  • an internal rechargeable battery 402 and a rechargeable battery 402 are electrically connected to the connecting part 300 in the direction of the inside of the body 400 to operate the transducer 410.
  • the control unit 420 composed of a printed circuit board implementing the control circuit for controlling the ultrasonic toothbrush, and the ultrasonic transducer 410 is configured to be located.
  • the outside of the body 400 may be provided with a charging terminal 401, a power switch 480, and a display (not shown) for charging the rechargeable battery 402.
  • the ultrasonic transducer 410 is positioned toward the connection part 300 in the body 400 and is fixed to the inside of the body 400 by the bracket 416.
  • the ultrasonic transducer 410 includes a front mass 411, a backing mass 412, a positive driving electrode 413, a negative driving electrode 414, a vibrator 415, and a vibrator that couples and couples them.
  • Combination bar 330 and the fixing nut (nut) 332 and the like, and the oscillator coupling rod 330 is integrated with the diaphragm connecting rod 310 to reduce the loss of vibration energy.
  • the ultrasonic transducer 410 may be configured for single use and dual use.
  • the transducer 410 in the single mode has a diaphragm connecting rod 310, a front mass 411, a negative drive electrode 414, a vibrator 415, and a positive drive from the head 100.
  • the electrode 413, the vibrator 415, the negative driving electrode 414, and the backing mass 412 are assembled in this order.
  • the vibrator 415 of the ultrasonic transducer 410 is coupled to the vibrator coupling rod 330 such that the vibration direction 311 vibrates in the direction of the arrow of FIG. 6.
  • the width of the bottom surface of the diaphragm connecting rod is preferably configured to be equal to the area of the front mass 411 which is in contact with the diaphragm connecting rod, and the cross section of the diaphragm connecting rod 310 which is continued upward becomes smaller. Can be.
  • the ratio of the narrowing of the cross section according to the distance from the surface of the front mass 411 is calculated by the finite element method, and the area of the bottom of the diaphragm connecting rod 310 is at least twice the area of the upper surface of the diaphragm connecting rod. It should be strange.
  • control unit 12 is a main configuration diagram of the control unit, the control unit 420 located in the body 400 is the frequency generator 430, the drive voltage generator 440, the resonant frequency tracking unit 450, the vibration intensity control unit 460 Circuitry such as a user interface such as the charging and power management unit 470 operates in conjunction with the software of the microcontroller unit (MCU) 421.
  • MCU microcontroller unit
  • an energy regeneration circuit is used to reduce the current consumption.
  • This regeneration circuit will be described later.
  • the power of the rechargeable battery 402 is supplied to the controller 420, and the MCU 421 starts to operate.
  • the MCU 421 scans the impedance of the ultrasonic transducer 410 by sweeping a frequency band, that is, a frequency from fs to fe.
  • the frequency generation used for this sweep may have an external resonance frequency generator 430 according to the range of the resonance frequency, or the MCU 421 may directly generate the resonance frequency. In general, the MCU 421 or less below 500 kHz generates a direct switching signal.
  • the driving voltage generating unit 440 generally uses a high voltage generating transformer 431, and the driving input power 434 supplies power of the rechargeable battery 402. Use or smooth external AC power.
  • the driving input power source 434 is switched from the output terminal Ps of the MCU 421 or the resonant frequency generator 430 to the driving power source switching element 432 by using the driving power source switching element 432 to obtain a high voltage of the same frequency. Is operated to generate a phosphorus drive power source 435.
  • the transducer 410 may have several resonance frequencies depending on the thickness of the vibrator 415 and the structure and material of the parts connected to the vibrator.
  • the MCU 421 sweeps a frequency band, that is, a frequency from fs to fe, to scan the impedance of the ultrasonic transducer 410 as a result table. It can be seen that the resonance frequency "ResA, ResB, ResC" is generated.
  • the MCU 421 sets the resonant frequency band corresponding to "ResA” to the cleaning mode for each resonant frequency band, sets the resonant frequency band corresponding to "ResB” to the whitening mode, and the resonant frequency corresponding to "ResC”. Set the band to gargle mode.
  • the low resonant frequency is suitable for the cleaning of large impurities, so that it can be used in the cleaning mode, the higher resonant frequency in the whitening mode, and the higher resonant frequency in the gargle mode which can be sterilized.
  • any three resonant frequencies may be selected among the generated resonant frequencies, and may be sequentially set to the washing, micro, and gargle modes.
  • the MCU 421 When the power is input, the MCU 421 memorizes the current resonant frequency in the cleaning mode, the whitening mode, and the gargling mode for each resonant frequency band, and when the user selects a mode, the MCU generates the corresponding frequency and tracks the corresponding resonant frequency. It is to control to generate a uniform resonance frequency.
  • the MCU 421 when the cleaning mode is selected, the MCU 421 outputs a switching signal corresponding to the frequency, and when the output signal drives the driving power switching element 432, it is supplied to the primary side of the driving voltage generating transformer 431.
  • the driving input power source 434 is switched to the selected frequency.
  • the voltage generated on the primary side is boosted to cause vibration in the connection to the vibrator 415 which is induced and connected to the secondary side.
  • the resonant frequency changes little by little depending on the load. Even if it changes little, it consumes a lot of current and the vibration energy decreases rapidly.
  • the impedance of the drive circuit is the smallest at that resonance frequency near one resonance frequency.
  • the present invention provides a resonant frequency tracking function using this principle to increase the efficiency of vibration energy.
  • the resonant frequency tracking unit 450 connects the driving voltage 435 using a resistor Rg having a large resistance value to affect the operation of the transducer 410. While minimizing, rectifying through diode (D1) and stabilizing with capacitor C1, the voltage is divided by resistors R1 and R2 and connected to the A / D input of MCU 421.
  • the MCU 421 changes the frequency so that it is only slightly larger, reads the A / D value of the current impedance and compares it with the A / D value of the previously read impedance, and if it is larger, lowers the oscillation frequency and compares it with the previously read impedance value. If it is smaller, the oscillation frequency is increased to output a frequency for minimizing the impedance A / D value to the driving power supply switching element 432 and tracks the maximum at the instantaneous instantaneous resonant frequency.
  • the selection of this mode may be selected by the mode selection switch 481 configured in a part of the body 400.
  • the present invention provides a function that can adjust the vibration intensity of the vibrator (415).
  • the strength of the electric field applied to the vibrator 415 must be changed.
  • FIG. 14 is a diagram illustrating a main configuration of an apparatus for changing the strength of an electric field of the present invention. As shown in FIG. By changing the base current of the driving power supply switching element 432 by switching the base terminal to the switching signal Ps by connecting to the switching element 433 for adjustment, the intensity of vibration can be adjusted.
  • the present invention also provides a dual mode using two transducers.
  • a dual mode transducer is illustrated in a perspective view illustrating an example of the ultrasonic transducer in dual mode of FIG. 10.
  • vibration energy can be amplified and more resonant frequencies can be achieved.
  • At least two vibrators of the ultrasonic transducer are positioned in series with one or more pairs of vibrators interposed between the driving electrode plates.
  • the configuration of the dual transducer is to place another mass (hereinafter, referred to as a middle mass) between the transducers, and adjust the length of the middle mass to generate the ultrasonic transducer 1 in the middle.
  • a middle mass By synthesizing the vibration waveform generated by the ultrasonic transducer 2 with the vibration waveform transmitted to the mass, it is possible to increase or decrease the vibration energy directed to the diaphragm.
  • the middle mass 600 may be a ceramic material or may be composed of two or more as necessary, and the length of the middle mass can be reduced by delaying the transmission of vibration by using a metal leaf spring 610 therebetween. .
  • the dual mode may consume a large amount of current, it may be difficult to use a rechargeable battery. Therefore, the amount of current consumed must be drastically reduced.
  • the present invention uses a current regeneration circuit in the dual mode to reduce the amount of current
  • This regeneration circuit is shown in FIG.
  • FIG. 21 is a schematic view of a regeneration circuit according to an exemplary embodiment of the present invention, in which the high voltage generating transformer 431 used in the dual mode uses two secondary coils and winds the windings of the two coils opposite to each other.
  • two high voltage driving power sources 435-1 and 435-2 which are half wavelength different from each other, are made.
  • the basic principle of the current regeneration circuit is that the vibrator 415 is polarized at every half wavelength by using the characteristics of an electric capacitor, and the charged charge is replaced with the opposite vibrator 415 which is charged in reverse, and charged to some extent.
  • the lack of current is a method of reducing current consumption by filling the driving voltage generator 440.
  • four electronic switches S1, S2, S3 and S4 are connected to the positive driving electrode 413 and the negative driving electrode 414 of each transducer 410. do.
  • Two electronic switches S5 and S6 are connected to the same driving electrodes 413 and 414 of the transducer 410.
  • t1, t2, t3, t4, t5, and t6 are trigger signals of each electronic switch. When the signal is 1, the electronic switch is turned on and when the signal is 0, the electronic switch is turned off.
  • 19 illustrates a trigger signal of the driving power source 1 435-1, the driving power source 2 435-2, and the electronic switches of the transducers 410.
  • T1, t2, t3, t4, are disconnected from the driving voltage generator 440 by d1 time at points a, b, and cd, which are time points at which each driving voltage passes zero cross, and t5, by d1 time.
  • the currents charged in the respective transducers 410 are charged to the relative transducers 410 to some extent through S5 and S6 for the period d1, and t5 and t6 are set to 0 to turn off S5 and S6.
  • the present invention generates a triggering signal of an electronic switch using an application specific integrated circuit that can be directly designed to configure a digital circuit according to the specification to be composed of one small component.
  • the zero cross signal and the digital clock signal 437 of the driving power source 435 are used as inputs of an application-specific semiconductor.
  • the digital clock signal 437 is supplied by the MCU 421 or uses an oscillator or the like if a very fast clock is needed.
  • the ultrasonic frequency operates at a very high frequency
  • a fast clock is input to minimize the synchronization error, and a zero cross signal of the driving power source is used as the reference signal when the polarization is changed.
  • the internal logic circuit uses circuits such as a clock buffer, a decoder, a clock dividing counter, a de_multiplexer, and a flip flop.
  • the connecting portion 300 is composed of a diaphragm connecting rod 310 so as to transfer the vibration energy of the body 400 to the diaphragm 110 of the head 100, the diaphragm connecting rod 310 is in the connecting pipe 320 Configure to be in close contact.
  • connection pipe 320 is coupled to the body connector 500 on one side, the ultrasonic toothbrush should be used to contain the liquid in the oral cavity and therefore can not be used to shut the lips. Therefore, the connection pipe 320 is more convenient to use, but the diaphragm connecting rod 310 that transmits vibration is reduced when the transmission of vibration is attenuated to configure the connection pipe 320 to the maximum size that can be inserted into the oral cavity. And, while inserting the diaphragm connecting rod 310 therein, it is configured to be in close contact between the connecting pipe 320 and the connecting rod 310 without a space.
  • a screw 311 is formed at the end of the diaphragm connecting rod 310 so that the diaphragm connecting rod 310 can be connected to and separated from the head 100.
  • the ultrasonic transducer 410 which is a source of vibration energy, is located in the body 400, and the material of the body 400 is generally plastic, and the connection pipe 320 of the connection part 300 may also be made of plastic.
  • the present invention is to use the body connector 500 of a material such as silicone or rubber that is elastic and good waterproof between the connection portion 300 and the body 400.
  • the MCU 421 When the power switch 480 provided in the body 400 of the ultrasonic toothbrush of the present invention is turned on, the MCU 421 instantly sweeps a frequency from a predetermined frequency band, that is, fs to fe, and the ultrasonic transducer 410. Scan impedance and store the resonant frequency in memory.
  • Stored resonant frequency is set in cleaning mode, whitening mode, and gargle mode in order.
  • the MCU 421 applies a driving voltage through the driving voltage generator 440 to generate vibration energy while the transducer starts oscillation. Cavitation is transmitted to the front mass, the diaphragm connecting rod, and the diaphragm, and the angle of the face of the diaphragm pushes the liquid including the cavitation into the ejection streaming hole facing the face. Fresh liquid comes in alone.
  • the cavitation liquid exits the jet stream hole, cleans the teeth, and enters the suction stream hole to circulate.
  • This mode can be made selected by the mode selector switch 481.
  • the user selects the cleaning mode.
  • the MCU 421 When the cleaning mode is set, the MCU 421 outputs a switching signal corresponding to the cleaning mode resonant frequency, and when the output signal drives the driving power switching element 432, the MCU 421 is supplied to the primary side of the driving voltage generating transformer 431.
  • the driving input power source 434 is switched to the selected frequency.
  • the voltage generated on the primary side is boosted and induced and connected to the secondary side, the vibrator 415 vibrates, and eventually the connecting rod 310 vibrates in a constant direction.
  • the resonant frequency is changed little by little depending on the load and consumes a lot of current even if only a little change, so that the resonant frequency is maintained through the resonant frequency tracking unit 450 in order to maintain the resonant frequency.
  • the liquid is introduced into the suction streaming hole 125 of the head 100 to be ultrasonically vibrated by the vibrator, and to be ejected to the jet streaming hole 126 to perform the cleaning operation more efficiently.

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Abstract

Disclosed is an ultrasonic toothbrush. The ultrasonic toothbrush of the present invention comprises: a body comprising an ultrasonic transducer including a vibrator, and a control unit mounted with a microcontroller for controlling an operation of the transducer; a head unit comprising a vibrating plate, a vibrating plate cover inserted in and fixed to the vibrating plate, a suction streaming guide coupled to one side of the vibrating plate cover, and an ejection streaming guide coupled to the other side of the vibrating plate cover; and a connecting unit for mechanically coupling the head unit and the body. Therefore, the present invention has an effect of cleaning, with liquids such as water, the inside gums and between teeth that cannot be cleaned..

Description

[규칙 제26조에 의한 보정 01.06.2016]　초음파 칫솔[Correction by rule 26.01.06.2016] ultrasonic toothbrush
본 발명은 치아를 비롯한 구강 내를 세정하기 위한 칫솔에 관한 것으로, 보다 상세하게는 소형 초음파 진동판을 칫솔의 머리부에 구비하여 공진 주파수로 입안에 머금은 액체에 에너지를 공급하여 캐비테이션과 스트리밍을 발생시킬 수 있도록 하는 초음파 칫솔에 관한 것이다.The present invention relates to a toothbrush for cleaning the oral cavity including teeth, and more particularly, a small ultrasonic diaphragm is provided on the head of the toothbrush to supply energy to the liquid contained in the mouth at the resonant frequency to generate cavitation and streaming. It relates to an ultrasonic toothbrush.
근래에는 칫솔모를 사용한 일반 칫솔과 더불어 전동기의 회동을 이용한 전동칫솔 그리고 초음파 진동자의 진동을 이용한 초음파 칫솔이 상품화되거나 기술적으로 많은 개발이 진행되고 있는 상태이다.In recent years, a general toothbrush using bristles, an electric toothbrush using a rotation of an electric motor, and an ultrasonic toothbrush using a vibration of an ultrasonic vibrator have been commercialized or technically developed.
이러한 종래의 초음파 칫솔이 도 1에 개시되어 있다.Such a conventional ultrasonic toothbrush is disclosed in FIG. 1.
도면을 참고하면, 손잡이부(1)내에 충전용배터리팩(2)와 구동회로 입력단이 연결되고 그사이에 칸막이(4)로 구분되어 있다.Referring to the drawings, the battery pack 2 for charging and the driving circuit input terminal are connected to the handle 1, and divided into partitions 4 therebetween.
초음파 진동을 발생시키는 구동회로는 2개의 전선(11')에 의하여 초음파진동자(20)의 금속전극링(11)과 각각연결되어 있으며 초음파진동자는 초음파진동자의 후방금속탄성체(백킹매스;10)와 초음파진동자의 격리판(5)사이에 실리콘탄성고무(8)로 지지되며 2개의 링형태의 압전세라믹(9)이 병렬로 전방금속탄성체(프론트매스;12)와 후방금속탄성체(10)중앙의 홀을 통하여 볼트로 체결되어 있다.The driving circuit for generating the ultrasonic vibration is connected to the metal electrode ring 11 of the ultrasonic vibrator 20 by two wires 11 'and the ultrasonic vibrator has a rear metal elastic body (backing mass) 10 of the ultrasonic vibrator. Between the separators 5 of the ultrasonic vibrator, silicon elastic rubber 8 is supported and two ring-shaped piezoelectric ceramics 9 are arranged in parallel with the front metal elastic body (front mass) 12 and the rear metal elastic body 10 in parallel. It is bolted through the hole.
상기 실리콘탄성고무(8)는 초음파진동자의 후방금속탄성체(10)가 탄력 있게 끼워지기 위해 바람직하게는 실리콘 탄성고무나 수지가 삽입될 수 있으며 탄력있게 끼울 수 있는 기타 재질을 사용할 수도 있다.The silicone elastic rubber 8 is preferably a silicone elastic rubber or a resin may be inserted in order to be elastically fitted to the rear metal elastic body 10 of the ultrasonic vibrator, it may be used other materials that can be elastically fitted.
또한, 초음파진동자(20)을 손잡이부(1)에 단단히 고정하기 위하여 초음파발생혼에 걸림턱(13)을 설치하고 이 걸림턱은 손잡이 상부의 홈(6)에 방수를 위한 실리콘 고무패킹(7)에 의하여 고정된다. 이렇게 구성된 손잡이부(1)는 초음파의 용이한 전달을 위한 음향임피던스 매칭층(14)이 설치된 칫솔모 부위(16,17)와 걸림턱(13)에 의하여 체결되도록 한다. 또한, 음향 임피던스 매칭층(14)은 부호15와 같이 0~45°의 각도로 설치되어 최적의 초음파진동이 전달되도록 조절할 수 있으며 음향임피던스 매칭층은 초음파발생용 전방금속탄성체(프론트매스;12)와 음향임피던스가 유사한 재질을 사용한다 라고 기재되어 있다.In addition, in order to securely secure the ultrasonic vibrator 20 to the handle portion (1) to install a locking jaw (13) in the ultrasonic generating horn and the locking jaw is a silicone rubber packing (7) for waterproofing in the groove (6) of the upper handle It is fixed by). The handle portion 1 configured as described above is fastened by the bristle portions 16 and 17 and the locking jaw 13 in which the acoustic impedance matching layer 14 is installed for easy transmission of ultrasonic waves. In addition, the acoustic impedance matching layer 14 is installed at an angle of 0 ~ 45 ° as shown by the reference numeral 15 can be adjusted so as to transmit the optimal ultrasonic vibration, the acoustic impedance matching layer is the front metal elastic body for ultrasonic generation (front mass; 12) And acoustic impedance are described using similar materials.
그러나 이러한 제품들은 초음파가 칫솔의 플라스틱에 의하여 감쇄되어 초음파 진동이 거의 발생하지 않으며, 초음파 음향전달에 의한 효과만을 이용하고, 기계적 진동은 진동 모터방식을 채용함으로써 효과적인 초음파 진동에너지와 캐비테이션 효과를 발생시키지 못하고 있어, 세정 효과를 기대하기 어렵다. However, these products are ultrasonic wave attenuation by the plastic of the toothbrush hardly generates ultrasonic vibration, and only by the effect of ultrasonic sound transmission, and mechanical vibration adopts the vibration motor method, which does not generate effective ultrasonic vibration energy and cavitation effect It is hard to expect a washing effect.
따라서, 초음파 진동이 캐비테이션과 스트리밍의 효과를 동시에 발생시킬 수 있는 더욱 효과적인 초음파 칫솔이 요구되고 있다.Therefore, there is a need for a more effective ultrasonic toothbrush in which ultrasonic vibration can simultaneously produce the effects of cavitation and streaming.
이러한 과제를 해결하기 위한 본 발명은 초음파 트랜스듀서의 진동판을 초소형으로 만들며 동시에 강한 캐비테이션과 함께 스트림(stream)도 발생시켜 치아를 비롯한 구강을 세척할 수 있는 초음파 칫솔을 제공하는 것을 목적으로 한다.The present invention for solving this problem is to provide an ultrasonic toothbrush that can make the diaphragm of the ultrasonic transducer into a compact and at the same time generates a stream with a strong cavitation to wash the mouth, including teeth.
또한, 본 발명은 초음파 트랜스듀서가 세정모드, 미백모드, 가글링 모드 등의 모드에 맞는 주파수를 발생시키고 그 주파수가 부하의 크기에 관계없이 공진이 되도록 추적하며 각 사용하는 모드에서 진동의 강도를 조절할 수 있는 초음파 칫솔을 제공하는 것을 다른 목적으로 한다.In addition, the present invention, the ultrasonic transducer generates a frequency suitable for the mode, such as cleaning mode, whitening mode, gargle mode, etc., the frequency is tracked to be resonant regardless of the size of the load, and adjust the intensity of vibration in each mode used Another object is to provide an ultrasonic toothbrush that can be used.
그리고 본 발명은 구동전압이 반파장 차이가 나는 구동 전원을 사용하는 또 다른 진동자들을 같이 사용하는 듀얼모드를 제공하며, 이 듀얼 모드 사용 시 소모 전류를 줄이는 에너지 재생회로를 제공하는 것을 또 다른 목적으로 한다.Another object of the present invention is to provide a dual mode using another oscillator using a driving power source having a half-wave difference in driving voltage, and to provide an energy regeneration circuit that reduces current consumption when using the dual mode. do.
이러한 과제를 해결하기 위한 본 발명의 일실시예에 의한 초음파 칫솔은 진동자를 포함하는 초음파 트랜스듀서와 상기 트랜스듀서의 동작을 제어하는 마이크로 콘트롤러가 탑재된 제어부를 포함하는 몸체와, 금속 탄성체로 형성된 진동판과 상기 진동판이 삽설되어 고정되는 진동판커버와 상기 진동판 커버의 일측에는 흡입 스트리밍홀이 타측에는 분출 스트리밍홀이 형성된 머리부, 및 상기 머리부와 상기 몸체를 기구적으로 연결하는 연결부를 포함하여 구성함으로써 달성될 수 있다. Ultrasonic toothbrush according to an embodiment of the present invention for solving this problem includes a body including an ultrasonic transducer including a vibrator and a controller mounted with a microcontroller for controlling the operation of the transducer, and a diaphragm formed of a metal elastic body And a diaphragm cover to which the diaphragm is inserted and fixed, and a suction streaming hole at one side of the diaphragm cover, and a head part having a spray streaming hole at the other side thereof, and a connection part for mechanically connecting the head and the body. Can be achieved.
이러한 구성으로 상기 몸체에서 발생된 초음파진동이 상기 연결부를 통하여 상기 진동판으로 전달되고, 상기 흡입스트리밍홀로 흡입된 액체가 상기 진동판에 의하여 진동되어 상기 분출스트리밍홀로 분출되도록 한다.In this configuration, the ultrasonic vibration generated in the body is transmitted to the diaphragm through the connection part, and the liquid sucked into the suction streaming hole is vibrated by the diaphragm to be ejected into the jet stream.
또한, 진동판은 일면을 경사절개면으로 구성하고, 상기 경사절개면과 상기 연결부가 이루는 각도가 예각으로 구성하고, 상기 흡입스트리밍홀은 진동판의 끝면의 모서리가 있는 면에 구성하고, 상기 분출스트리밍홀은 상기 진동판의 경사절개면과 대향하는 위치에 구성하도록 하고, 상기 분출스트리밍홀은 상기 진동판의 경사절개면에서 상기 흡입스트리밍홀보다 상대적으로 먼 거리에 구성한다.In addition, the diaphragm comprises one surface as an inclined cutting surface, the angle formed by the inclined cutting surface and the connecting portion is formed at an acute angle, the suction streaming hole is configured on the surface with the edge of the end surface of the diaphragm, the ejection streaming hole Is configured at a position opposite to the inclined cut surface of the diaphragm, and the ejection streaming hole is configured at a relatively far distance from the suction streaming hole in the inclined cut surface of the diaphragm.
또한, 진동판은 진동판의 앞면을 제외한 모든 면이 상기 진동판 커버의 내부에 밀착되도록 구성하고, 상기 머리부는 상기 연결부의 일단과 결합 또는 분리되도록 구성하고, 2개의 경사면을 갖는 진동판으로 구성된 가글링 머리부를 제공할 수 있도록 한다.In addition, the diaphragm is configured such that all surfaces except the front surface of the diaphragm are in close contact with the inside of the diaphragm cover, and the head part is configured to be coupled or separated from one end of the connecting portion, and provides a gargling head composed of a diaphragm having two inclined surfaces. Do it.
그리고, 상기 연결부와 상기 몸체 사이에 실리콘 또는 우레탄으로 구성된 몸체연결자를 포함하고, 상기 마이크로 컨트롤러는 공진주파수별로 서로 다른 모드를 설정하고, 상기 몸체에 구비된 모드선택스위치의 선택모드에 따라 해당 공진주파수로 상기 진동자를 진동시키도록 구성한다.And a body connector made of silicon or urethane between the connection part and the body, wherein the microcontroller sets different modes for each resonant frequency, and the corresponding resonant frequency according to the selection mode of the mode selection switch provided in the body. The vibrator is configured to vibrate.
또한, 마이크로 컨트롤러는 선택된 공진 주파수를 추적하여 공진상태를 유지할 수 있도록 하고, 선택된 모드에서 진동의 강도를 조절할 수 있도록 구성하는 것이 바람직하다.In addition, the microcontroller may be configured to keep the resonance state by tracking the selected resonance frequency and to adjust the intensity of vibration in the selected mode.
한편, 몸체는 하나의 초음파 트랜스듀서로 구성된 싱글 모드 또는 2개의 초음파 트랜스 듀서로 구성하고, 각 초음파 트랜스듀서 사이에 미들 매스가 개재된 듀얼 모드로 구성하고, 듀얼 모드로 구성하는 경우에 하나의 미들 매스를 사용하나 필요에 따라서는 상기 미들매스를 2개 사용하고 각 미들매스 사이에 판 스프링이 개재되도록 한다.On the other hand, the body is composed of a single mode consisting of one ultrasonic transducer or two ultrasonic transducers, and configured in a dual mode with a middle mass interposed between each ultrasonic transducer, one middle in the dual mode A mass is used, but if necessary, two middle masses are used, and a leaf spring is interposed between each middle mass.
그리고, 상기 몸체를 듀얼 모드로 구성하는 경우에 전류 재생회로를 제어부에 구성하고, 상기 전류 재생회로에 주문형 반도체(application specific integrated circuit)를 사용하고, 그 입력의 하나로 제로크로스 신호를 사용하는 것이 바람직하다.When the body is configured in the dual mode, it is preferable to configure a current regeneration circuit in the controller, to use an application specific integrated circuit for the current regeneration circuit, and to use a zero cross signal as one of the inputs. Do.
따라서 본 발명의 초음파 칫솔에 의하면 기존의 칫솔로는 닦지 못하는 치아 사이, 잇몸 안을 물 같은 액체로 세척할 수 있는 효과가 있다.Therefore, according to the ultrasonic toothbrush of the present invention, there is an effect that can be washed with a liquid such as water in the gums between the teeth that cannot be wiped with a conventional toothbrush.
또한, 본 발명의 초음파 칫솔에 의하면 구강 내에 번식하는 각종 세균도 없앨 수 있어 그 세균으로 인해 생겨날 수 있는 각종 질병을 예방할 수 있고 입 냄새도 제거할 수 있는 효과가 있다.In addition, according to the ultrasonic toothbrush of the present invention, it is possible to eliminate various germs that propagate in the oral cavity, thereby preventing various diseases that may occur due to the germs, and removing the smell of the mouth.
또한, 본 발명의 초음파 칫솔에 의하면 액체를 사용하여 치아를 세정하기 때문에 잇몸의 마모를 방지할 수 있는 효과가 있다.In addition, according to the ultrasonic toothbrush of the present invention, since the teeth are cleaned using the liquid, there is an effect of preventing wear of the gum.
또한, 본 발명의 초음파 칫솔에 의하면 입에 물고만 있어도 세정이 되기 때문에 어린이, 노인, 환자들도 쉽게 사용할 수 있는 효과가 있다.In addition, according to the ultrasonic toothbrush of the present invention can be easily used even children, the elderly, patients because it can be cleaned even if the mouth bite.
그리고 본 발명의 초음파 칫솔에 의하면 한 개의 제품으로 세정모드, 미백모드, 가글모드 등 여러 용도로 사용할 수 있는 효과가 있다.And according to the ultrasonic toothbrush of the present invention, there is an effect that can be used in various applications such as cleaning mode, whitening mode, and goggle mode as one product.
도 1은 종래의 초음파 칫솔의 일례를 도시한 도면,1 is a view showing an example of a conventional ultrasonic toothbrush,
도 2는 본 발명의 초음파 칫솔의 사시도,2 is a perspective view of the ultrasonic toothbrush of the present invention,
도 3은 본 발명 초음파 칫솔의 단면도,3 is a cross-sectional view of the present invention ultrasonic toothbrush,
도 4는 본 발명 머리부의 분해사시도, 4 is an exploded perspective view of the head of the present invention;
도 5는 본 발명 머리부의 사시도,5 is a perspective view of the head of the present invention;
도 6은 본 발명 머리부의 확대 단면도,6 is an enlarged cross-sectional view of the head of the present invention;
도 7은 본 발명의 가글형 진동판 커버 사시도,7 is a perspective view of a gargle type diaphragm cover of the present invention;
도 8은 가글형 진동판으로 구성된 머리부의 단면도,8 is a sectional view of a head composed of a gargle diaphragm,
도 9는 가글형 진동판이 결합된 초음파 칫솔의 사시도,9 is a perspective view of the ultrasonic toothbrush coupled to the gargle type diaphragm,
도 10은 듀얼모드에서의 초음파 트랜스듀서의 일례를 도시한 사시도,10 is a perspective view showing an example of the ultrasonic transducer in dual mode;
도 11은 본 발명의 듀얼모드에서의 미들 매스 구성의 일례를 도시한 도면,11 is a diagram showing an example of the middle mass configuration in the dual mode of the present invention;
도 12는 본 발명의 제어회로부의 주요구성도,12 is a main configuration diagram of a control circuit unit of the present invention;
도 13은 본 발명의 구동전압 발생부의 주요 구성도,13 is a main configuration diagram of a drive voltage generator of the present invention;
도 14는 본 발명의 전기장의 세기 변화 장치와 관련된 주요 구성도,14 is a main configuration diagram related to the intensity change device of the electric field of the present invention;
도 15는 본 발명의 일실시예에 의한 공진주파수 추적부의 주요 구성도,15 is a main configuration diagram of a resonant frequency tracking unit according to an embodiment of the present invention;
도 16은 본 발명의 주파수 대역별 공진하는 주파수의 일례를 도시한 도면,16 is a view showing an example of resonant frequencies for each frequency band of the present invention;
도 17은 본 발명의 일실시예에 의한 전류재생회로의 주요 구성도,17 is a main configuration diagram of a current regeneration circuit according to an embodiment of the present invention;
도 18은 본 발명의 일실시예에 의한 전자식 트리거 신호 발생부를 도시한 도면,18 illustrates an electronic trigger signal generator according to an embodiment of the present invention;
그리고, And,
도 19는 트랜스듀서의 구동 전원에 따른 각 전자식 스위치의 트리거 신호를 도시한 도면이다. 19 is a diagram illustrating a trigger signal of each electronic switch according to a driving power supply of the transducer.
부호의 설명Explanation of the sign
100 : 머리부 110 : 진동판100: head 110: diaphragm
112 : 경사절개면 113 : 진동판끝면모서리112: inclined incision side 113: diaphragm edge edge
120 : 진동판커버 121 : 커버몸체120: diaphragm cover 121: cover body
125 : 흡입스트리밍홀 126 : 분출스트리밍홀125: suction stream hole 126: jet stream hole
129 : 진동판 끝면129: end face of the diaphragm
300 : 연결부 310 : 진동판 연결 막대300: connection part 310: diaphragm connection bar
400 : 몸체 402 : 충전배터리400: body 402: rechargeable battery
410 : 트랜스듀서 411 : 프론트 매스410: transducer 411: front mass
412 : 백킹 매스 413 : 플러스 구동전극412 backing mass 413 positive driving electrode
414 : 마이너스 구동전극 415 : 진동자414: negative driving electrode 415: vibrator
420 : 제어부 421 : MCU420: control unit 421: MCU
430 : 주파수 발생부 440 : 구동 전압 발생부430: frequency generator 440: driving voltage generator
450 : 공진 주파수 추적부 460 : 진동 세기 조절부450: resonant frequency tracking unit 460: vibration intensity control unit
500 : 몸체 연결자 600 : 미들매스500: body connector 600: middle mass
610 : 판스프링610: leaf spring
본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정 해석되지 아니하며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다.The terms or words used in this specification and claims are not to be construed as limiting in their usual or dictionary meanings, and the inventors may properly define the concept of terms in order to best explain their invention in the best way possible. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention.
명세서 전체에서, 어떤 부분이 어떤 구성요소를 "포함"한다고 할 때, 이는 특별히 반대되는 기재가 없는 한 다른 구성요소를 제외하는 것이 아니라 다른 구성요소를 더 포함할 수 있는 것을 의미한다. 또한, 명세서에 기재된 "?부", "?기", "모듈", "장치" 등의 용어는 적어도 하나의 기능이나 동작을 처리하는 단위를 의미하며, 이는 하드웨어 및/또는 소프트웨어의 결합으로 구현될 수 있다.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. In addition, the terms "?", "?", "Module", "device", and the like described in the specification mean a unit that processes at least one function or operation, which is implemented by a combination of hardware and / or software. Can be.
명세서 전체에서 "제1", "제2" 등의 용어는 하나의 구성요소를 다른 구성요소로부터 구별하기 위한 것으로 이들 용어들에 의해 권리범위가 한정되어서는 아니 된다. 예를 들어, 제1 구성요소는 제2 구성요소로 명명될 수 있고, 유사하게 제2 구성요소도 제1 구성요소로 명명될 수 있다.The terms "first", "second", and the like throughout the specification are intended to distinguish one component from other components, and the scope of rights should not be limited by these terms. For example, the first component may be named a second component, and similarly, the second component may also be named a first component.
명세서 전체에서 "및/또는"의 용어는 하나 이상의 관련 항목으로부터 제시 가능한 모든 조합을 포함하는 것으로 이해되어야 한다. 예를 들어, "제1 항목, 제2 항목 및/또는 제3 항목"의 의미는 제1, 제2 또는 제3 항목뿐만 아니라 제1, 제2 또는 제3 항목들 중 2개 이상으로부터 제시될 수 있는 모든 항목의 조합을 의미한다.The term "and / or" throughout the specification should be understood to include all combinations that can be presented from one or more related items. For example, the meaning of "first item, second item and / or third item" may be given from two or more of the first, second or third items as well as the first, second or third items. Any combination of the possible items.
명세서 전체에서 어떤 구성요소가 다른 구성요소에 "연결되어" 있다고 언급된 때에는, 그 다른 구성요소에 직접적으로 연결될 수도 있지만, 중간에 다른 구성요소가 존재할 수도 있다고 이해되어야 할 것이다. 또한, 구성요소들 간의 관계를 설명하는 다른 표현들, 즉 "~사이에"와 "바로 ~사이에" 또는 "~에 이웃하는"과 "~에 직접 이웃하는" 등도 마찬가지로 해석되어야 한다.When a component is referred to throughout the specification as being "connected" to another component, it should be understood that there may be other components in between, although it may be directly connected to that other component. In addition, other expressions describing the relationship between components, such as "between" and "immediately between" or "neighboring to" and "directly neighboring", should be interpreted as well.
이하, 도면을 참조하여 본 발명의 일실시예에 대하여 설명한다.Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
도 2는 본 발명의 초음파 칫솔의 사시도이고, 도 3은 본 발명 초음파 칫솔의 단면도이다.Figure 2 is a perspective view of the ultrasonic toothbrush of the present invention, Figure 3 is a cross-sectional view of the ultrasonic toothbrush of the present invention.
본 발명의 초음파칫솔은 구강 내에 액체에 다량의 캐비테이션(cavitation)을 발생시키고 그 캐비테이션의 크기를 키우며 그 캐비테이션을 세정하고자 하는 치아 등의 피세정물로 이동시키기 위해 액체에 스트리밍(Streaming)을 생성하는 장치를 갖는 초음파 칫솔에 관한 것이다.The ultrasonic toothbrush of the present invention generates a large amount of cavitation in the liquid in the oral cavity, increases the size of the cavitation, and generates streaming in the liquid to move the cavitation to the object to be cleaned, such as the tooth to be cleaned. An ultrasonic toothbrush having a device.
이를 위하여 본 발명의 초음파 칫솔은 몸체(400), 머리부(100), 그리고 몸체(400)와 머리부(100)를 연결하는 연결부(300)를 포함하여 구성함으로써, 칫솔모가 없는 일반 전동 칫솔과 유사한 외관을 갖는다. To this end, the ultrasonic toothbrush of the present invention comprises a body 400, the head 100, and the connection portion 300 for connecting the body 400 and the head 100, the general electric toothbrush without bristles and Have a similar appearance.
머리부(100)에는 진동판(110)과 진동판(110)을 감싸고 있는 진동판 커버(120)를 포함하여 구성하고, 손으로 잡고 있을 수 있는 몸체(400)에는 진동을 일으키는 초음파 트랜스듀서(410), 트랜스듀서(410)를 구동하는 회로를 갖고 있는 제어부(420) 등이 있으며, 머리부(100)와 몸체(400)를 연결하는 연결부(300)는 진동판 연결 막대(310)로 진동판(110)과 초음파 트랜스듀서(410)를 연결하며 진동판 연결 막대(310)의 일측과 몸체(400)의 일부를 실리콘, 우레탄 또는 고무와 같은 유연한 재질로 몸체연결자(500)를 구성하여 진동을 방해하지 않도록 구성한다.The head part 100 includes a diaphragm 110 and a diaphragm cover 120 surrounding the diaphragm 110, and an ultrasonic transducer 410 causing vibration in the body 400 which can be held by a hand. There is a control unit 420 having a circuit for driving the transducer 410, the connection portion 300 for connecting the head 100 and the body 400 is a diaphragm connecting rod 310 and the diaphragm 110 and It connects the ultrasonic transducer 410 and configures the body connector 500 of one side of the diaphragm connection bar 310 and a part of the body 400 by a flexible material such as silicon, urethane or rubber so as not to disturb the vibration. .
또한, 몸체(400)의 내부에는 연결부(300) 방향으로 순차적으로 내부 충전 배터리(402)(rechargable battery), 충전 배터리(402)와 전기적으로 연결되고 트랜스듀서(410)를 동작시키며 초음파 칫솔을 제어하기 위한 제어회로를 구현한 회로 기판(printed circuit board)으로 구성된 제어부(420), 그리고 초음파 트랜스듀서(410)가 위치하도록 구성한다.In addition, the body 400 is electrically connected to the internal rechargeable battery 402 (rechargable battery) and the rechargeable battery 402 in the direction of the connecting portion 300 in sequence and operates the transducer 410 and controls the ultrasonic toothbrush. The control unit 420 formed of a printed circuit board and the ultrasonic transducer 410 are configured to be positioned.
머리부(100)는 진동판 연결 막대(310)와 연결되어 진동판(110)이 몸체(400)와 수평방향(311)으로 진동하도록 구성한다(도 3참조).The head part 100 is connected to the diaphragm connecting rod 310 to configure the diaphragm 110 to vibrate in the horizontal direction 311 with the body 400 (see FIG. 3).
도 4의 본 발명 머리부의 분해 사시도와 도 5의 본 발명 머리부의 사시도를 참고하면, 머리부(100)는 진동판(110)이 내부에 삽설되는 진동판커버(120)로 구성된다.Referring to an exploded perspective view of the head of the present invention of Figure 4 and a perspective view of the head of the present invention of Figure 5, the head portion 100 is composed of a diaphragm cover 120 is inserted into the diaphragm 110.
진동판(110)의 경사절개면(112) 즉 구강내의 액체와 닿는 면과 진동판 연결 막대(310)의 방향 즉 진동자(415)의 진동방향(311)이 이루는 각인 θ1은 90보다 작은 예각을 갖도록 한다(도 4참조). An angle θ1 formed between the inclined cutting surface 112 of the diaphragm 110, that is, the surface in contact with the liquid in the oral cavity, and the direction of the diaphragm connecting rod 310, that is, the vibration direction 311 of the vibrator 415, has an acute angle smaller than 90. (See Figure 4).
또한, 진동판(110)은 진동판의 앞면, 즉 경사절개면(112)을 제외한 모든 면이 진동판 커버(120)의 내부에 밀착되도록 구성하여야 초음파 진동이 발생하면 경사면에 수직한 방향으로 보다 효과적으로 액체를 밀어내게 된다.In addition, the diaphragm 110 should be configured such that all surfaces of the diaphragm except for the inclined cutting surface 112 are in close contact with the inside of the diaphragm cover 120. Pushed out.
즉 경사절개면(112)은 진동판(110) 앞에 있는 액체를 진동 방향(화살표 방향)과 다른 방향인 경사면과 수직의 방향으로 스트리밍을 형성하도록 해주는 것이다.That is, the inclined cutting surface 112 allows the liquid in front of the diaphragm 110 to form a stream in a direction perpendicular to the inclined surface that is different from the vibration direction (arrow direction).
본 발명은 진동판(110)의 경사절개면(112)이 진동판 연결 막대(310)와 이루는 각도(θ1)가 예각인 것을 특징으로 한다(도 6 참조).The present invention is characterized in that the angle θ1 of the inclined cutting surface 112 of the diaphragm 110 and the diaphragm connecting rod 310 is an acute angle (see FIG. 6).
진동판커버(120)는 진동판(110)과 음향 임피던스가 다른 물질이어야 하며 구강 내의 치아 등과 접촉되기 쉬움으로 고무나 유연성이 있는 플라스틱 등의 재질로 구성하고, 중공의 말발굽 형상의 커버몸체(121)와 스트리밍 가이드(124), 진동판커버(120)의 양단과 스트리밍 가이드(124)의 양단에 형성된 흡입스트리밍홀(125)과 분출스트리밍홀(126), 그리고 커버몸체(121)와 스트리밍가이드(124)를 양측에서 지지하도록 결합하는 좌커버(122)와 우커버(123)를 포함하여 구성한다.The diaphragm cover 120 should be made of a material having a different acoustic impedance from the diaphragm 110, and be made of a material such as rubber or a plastic having flexibility in contact with teeth in the oral cavity, and a cover body 121 having a hollow horseshoe shape. The suction guide hole 125 and the ejection streaming hole 126 formed at both ends of the streaming guide 124, the diaphragm cover 120 and both ends of the streaming guide 124, and the cover body 121 and the streaming guide 124 It comprises a left cover 122 and the right cover 123 to be coupled to support from both sides.
즉, 중공의 커버몸체(121)에 진동판(110)을 삽설하고, 커버몸체(121)의 양단과 스트리밍가이드(124)가 소정 간격 이격되도록 좌우커버(122,123)에 의하여 커버몸체(121)와 스트리밍가이드(124)가 이격되게 결합되어, 이격된 커버몸체(121)의 양단과 스트리밍가이드(124)에 의해서, 흡입스트리밍홀(125)과 분출스트리밍홀(126)을 형성하는 것이다.That is, the diaphragm 110 is inserted into the hollow cover body 121, and the cover body 121 and the streaming are covered by the left and right covers 122 and 123 so that both ends of the cover body 121 and the streaming guide 124 are spaced apart by a predetermined interval. The guide 124 is spaced apart from each other, and the suction streaming hole 125 and the ejection streaming hole 126 are formed by both ends of the cover body 121 and the streaming guide 124 spaced apart from each other.
또한, 진동판의 경사절개면(112)에 의해 분출되는 액체가 원활하게 배출될 수 있도록 분출스트리밍홀(126)도 경사절개면(112)을 향하여 경사지도록 구성한다.In addition, the ejection streaming hole 126 is also inclined toward the inclined incision surface 112 so that the liquid ejected by the inclined incision surface 112 of the diaphragm can be smoothly discharged.
도 5의 본 발명 머리부의 사시도와 도 6의 본 발명 머리부의 확대 단면도를 참고하면, 커버몸체(121)에 삽설된 진동판(110)이 좌우(화살표 방향)로 진동하면서, 흡입스트리밍홀(125)로 흡입된 액체가 분출스트리밍홀(126)을 통하여 자연스럽게 분출되는 것이다.Referring to the perspective view of the head of the present invention of Figure 5 and the enlarged cross-sectional view of the head of the present invention of Figure 6, while the diaphragm 110 inserted into the cover body 121 vibrates to the left and right (arrow direction), the suction streaming hole 125 The liquid sucked into is naturally ejected through the ejection streaming hole 126.
즉 진동판(110)의 진동으로 진동판 커버(120) 안의 한정된 액체에 캐비테이션을 발생시키며 진동판(110)의 경사절개면(112)에 의해 발생된 스트리밍이 캐비테이션을 분출 스트리밍 홀(126)을 통하여 밀어낸다. 따라서 분출 스트리밍 홀(126)은 진동판(110)의 경사절개면(112)과 대향되는 마주보는 방향에 형성되어야 보다 효과적이다.That is, the vibration of the diaphragm 110 generates cavitation in the limited liquid in the diaphragm cover 120, and the streaming generated by the inclined cutting surface 112 of the diaphragm 110 pushes the cavitation through the ejection streaming hole 126. . Therefore, the ejection streaming hole 126 is more effective to be formed in the opposite direction facing the inclined cutting surface 112 of the diaphragm 110.
이러한 분출 스트리밍은 진동판 끝면 모서리(113) 쪽에 음압을 형성하게 된다. 따라서 진동판 끝면 모서리(113)를 따라서 구멍을 만들어 놓으면 외부의 액체는 형성된 음압으로 흡입스트리밍홀(125)을 통하여 내부로 들어오게 된다. This jet streaming will form a sound pressure on the edge 113 side of the diaphragm. Therefore, when the hole is made along the edge of the diaphragm 113, the external liquid enters the inside through the suction streaming hole 125 at the formed negative pressure.
결국 흡입스트리밍홀(125)은 진동판의 끝면의 모서리(113)가 있는 면에 구성하고, 분출스트리밍홀(126)은 진동판의 경사절개면과 대향하는 위치의 끝 코너에 구성하되, 진동판의 경사절개면(112)에서 흡입스트리밍홀(126)보다 상대적으로 먼 거리에 구성하는 것이 바람직하다.As a result, the suction streaming hole 125 is configured on the surface with the edge 113 of the end face of the diaphragm, and the ejection streaming hole 126 is configured at the end corner of the position opposite to the inclined incision surface of the diaphragm, but the oblique incision of the diaphragm It is preferable to configure the surface 112 at a relatively far distance from the suction streaming hole 126.
이렇게 하여 초음파 진동으로 발생한 캐비테이션이 분출 스트리밍 홀(126)을 통해 나가서 치아 등을 세정하고 소멸하게 되며 또 흡입 스트리밍 홀(124)을 통해 액체가 들어와서 캐비테이션이 되는 순환이 계속 일어나게 된다. In this way, the cavitation generated by the ultrasonic vibration goes out through the jet stream hole 126 to clean and extinguish teeth and the like, and the circulation through which the liquid enters through the suction stream hole 124 becomes cavitation continues.
이때 분출 스트리밍 홀(126)은 커버몸체(121)의 한 단면과 스트리밍가이드(124)가 만나는 코너에 위치시킨다. 그 이유는 이 두 면이 각을 이루고 만나는 부근이 스트리밍을 모아주고 치아 세정 시 구석구석에 캐비테이션을 분출시키기 쉽기 때문이다. At this time, the ejection streaming hole 126 is located at the corner where one end of the cover body 121 and the streaming guide 124 meet. The reason is that the area where these two sides meet at an angle collects streaming and it is easy to eject cavitation in every corner during tooth cleaning.
또한, 진동판커버(120)는 진동판(110)의 앞면을 제외한 모든 다른 면과는 밀착되어 있어야 한다. 이렇게 되어야만 스트리밍의 형성 효율이 향상되기 때문이다. 이 또한 본 발명의 특징이다. In addition, the diaphragm cover 120 should be in close contact with all other surfaces except the front surface of the diaphragm 110. This is because streaming efficiency is improved only when this is done. This is also a feature of the present invention.
진동판(110)과 진동판 커버(120)로 구성된 머리부(100)는 진동판 연결 막대(310)와 결합하거나 분리 가능하도록 진동판(110) 뒷면에 암나사(111)로 구성하고, 이와 결합되는 진동판 연결막대(310)의 단부에는 수나사(311)가 형성되어, 진동판(110)의 암나사(111)와 진동판 연결막대(310)의 수나사(311)가 나사 결합되게 한다. Head portion 100 composed of a diaphragm 110 and the diaphragm cover 120 is composed of a female screw 111 on the back of the diaphragm 110 to be coupled to or separated from the diaphragm connecting rod 310, the diaphragm connecting rod coupled thereto The male screw 311 is formed at the end of the 310, so that the female screw 111 of the diaphragm 110 and the male screw 311 of the diaphragm connecting rod 310 are screwed together.
이러한 나사 결합은 설명의 편의를 위한 것이므로, 접합이나 기타 결합 방법을 배제하지 않는다.These screw couplings are for convenience of description and do not exclude bonding or other joining methods.
이를 위하여 커버몸체(121)에는 진동판(110)이 진동판 연결막대(310)와 연결되도록 진동판 연결막대(310)의 일측이 삽설되는 삽입홀(127)이 형성된다.To this end, the cover body 121 has an insertion hole 127 in which one side of the diaphragm connecting rod 310 is inserted so that the diaphragm 110 is connected to the diaphragm connecting rod 310.
즉, 삽입홀(127)에 진동판 연결막대(310)의 수나사(311)가 관통되어, 진동판(110)과 결합되도록 하기 위함이다.That is, the male screw 311 of the diaphragm connecting rod 310 penetrates the insertion hole 127 to be coupled to the diaphragm 110.
이렇게 하는 이유는 필요에 따라 다른 기능을 하는 머리부(200)를 장착시키기 위해서이다. The reason for doing so is to mount the head 200 having other functions as necessary.
본 발명은 이처럼 머리부(200)를 진동자 연결 막대(310)에서 분리하거나 결합시키는 것이 가능하도록 하는 것을 또 하나의 특징으로 한다.The present invention is characterized in that it is possible to separate or couple the head 200 in the vibrator connecting rod 310.
예를 들어 초음파 칫솔은 가글 모드를 제공 할 수 있다. Ultrasonic toothbrushes, for example, can provide a gargle mode.
가글링은 치아보다 목구멍을 세정하여야하기 때문에 분출 스트리밍 구멍이 진동판 커버 앞면에 위치시키는 것이 사용상 편리하다. Since the gargle must clean the throat rather than the teeth, it is convenient to use the ejection streaming hole located on the front of the diaphragm cover.
도 7의 본 발명의 가글형 진동판 커버 사시도와, 도 8의 가글형 진동판으로 구성된 머리부의 단면도와 도 9의 가글형 진동판이 결합된 초음파 칫솔의 사시도를 참고하면, 가글링 용도의 머리부(200)는 진동판(210)의 앞면에 두 개의 경사진 절개면이 있고, 진동판 커버(200) 앞면에 제1 및 제2 스트리밍 가이드(224a,224b)를 이격시켜 구성하고, 제1 및 제2 스트리밍 가이드(224a,224b) 사이에 분출 스트리밍 홀(226)을 형성하고, 커버몸체(221)의 양단과 제1 및 제2 스트리밍 가이드(224a,224b) 사이에 제1 및 제2 흡입스트리밍 홀(225a,225b)로 구성한다. Referring to the perspective view of the gargle type diaphragm cover of the present invention of FIG. 7, the cross-sectional view of the head composed of the gargle type diaphragm of FIG. 8, and the perspective view of the ultrasonic toothbrush combined with the gargle type diaphragm of FIG. 9, the head 200 for gargling use is illustrated. Has two inclined incision surfaces on the front surface of the diaphragm 210, the first and second streaming guides 224a and 224b are spaced apart on the front surface of the diaphragm cover 200, and the first and second streaming guides ( A jet streaming hole 226 is formed between the 224a and 224b, and the first and second suction streaming holes 225a and 225b are formed between both ends of the cover body 221 and the first and second streaming guides 224a and 224b. ).
이러한 구성의 가글링용 머리부(200)는 중공의 커버몸체(221)에 진동판(210)을 삽설하고, 커버몸체(221)의 양단과 제1 및 제2스트리밍가이드(224a,224b)가 소정 간격 이격되도록 함과 동시에 제1 및 제2스트리밍가이드(224a,224b)도 상호 이격되게 좌우커버(222,223)으로 결합하는 것이다.The head 200 for the gargling having such a configuration inserts the diaphragm 210 into the hollow cover body 221, and both ends of the cover body 221 and the first and second streaming guides 224a and 224b are spaced at predetermined intervals. At the same time, the first and second streaming guides 224a and 224b are coupled to the left and right covers 222 and 223 so as to be spaced apart from each other.
가글형 진동판커버(220)도 진동판(210)과 음향 임피던스가 다른 물질이어야 하며 구강 내의 치아 등과 접촉되기 쉬움으로 고무나 유연성이 있는 플라스틱 등의 재질로 구성하고, 진동판(210)은 타원기둥 형상에서 가상의 짧은 수직 중심선과 긴 수평 중심선의 교점까지 절개하되, 좌우 경사면을 갖도록 절개하여, 제1 경사절개면과 제2경사절개면으로 형성하되 각각의 절개면과 진동판 연결막대(310)의 방향 즉 진동자(415)의 진동방향(311)이 이루는 각도가 각각 90°보다 적은 예각(θ1,θ2)을 갖도록 형성한다.The goggle diaphragm cover 220 should also be made of a material different from the diaphragm 210 and its acoustic impedance. Cut to the intersection of the imaginary short vertical center line and the long horizontal center line, cut to have a left and right inclined plane, and formed into a first inclined plane and a second inclined plane, but the direction of each of the incision plane and the diaphragm connecting rod 310 The angle formed by the vibration direction 311 of the vibrator 415 is formed to have acute angles θ1 and θ2 of less than 90 °, respectively.
따라서, 제1 및 제2 흡입스트리밍 홀(225a,225b)로 유입된 액체가 2개의 경사절개면의 진동에 의하여 수평 방향 전면에 위치한 분출스트리밍홀(226)로 유입된 액체를 분출하도록 하는 것이다.Accordingly, the liquid introduced into the first and second suction streaming holes 225a and 225b ejects the liquid introduced into the spray streaming hole 226 located in the horizontal front by vibrating the two inclined cut surfaces.
몸체(400)에는 진동을 일으키는 초음파 트랜스듀서(410), 트랜스듀서(410)를 구동하는 회로를 갖고 있는 제어부(420) 등이 있으며, 머리부(100)와 몸체(400)를 연결하는 연결부(300)는 진동판 연결 막대(310)로 진동판(110)을 연결하며 진동판 연결 막대(310)의 일측과 몸체(400)의 일부를 감싸는 실리콘 또는 우레탄과 같은 탄성물질(500)로 연결된다.The body 400 includes an ultrasonic transducer 410 that causes vibration, a controller 420 having a circuit for driving the transducer 410, and a connection part connecting the head 100 and the body 400 ( 300 connects the diaphragm 110 to the diaphragm connecting rod 310 and is connected to one side of the diaphragm connecting rod 310 and an elastic material 500 such as silicone or urethane surrounding a part of the body 400.
도 3을 참고하면, 몸체(400)의 내측에서 연결부(300) 방향으로 순차적으로 내부 충전 배터리(402)(rechargable battery), 충전 배터리(402)와 전기적으로 연결되고 트랜스듀서(410)를 동작시키며 초음파 칫솔을 제어하기 위한 제어회로를 구현한 회로 기판(printed circuit board)으로 구성된 제어부(420), 그리고 초음파 트랜스듀서(410)가 위치하도록 구성한다.Referring to FIG. 3, an internal rechargeable battery 402 and a rechargeable battery 402 are electrically connected to the connecting part 300 in the direction of the inside of the body 400 to operate the transducer 410. The control unit 420 composed of a printed circuit board implementing the control circuit for controlling the ultrasonic toothbrush, and the ultrasonic transducer 410 is configured to be located.
또한, 몸체(400)의 외부에는 충전배터리(402)를 충전하기 위한 충전 단자(401)와, 전원 스위치(480), 그리고 디스플레이(미도시) 등을 구비할 수 있다.In addition, the outside of the body 400 may be provided with a charging terminal 401, a power switch 480, and a display (not shown) for charging the rechargeable battery 402.
초음파 트랜스듀서(410)는 몸체(400)에서 연결부(300) 쪽으로 위치하고 있으며 브라켓(416)에 의해 몸체(400) 내부에 고정된다. The ultrasonic transducer 410 is positioned toward the connection part 300 in the body 400 and is fixed to the inside of the body 400 by the bracket 416.
초음파 트랜스듀서(410)는 프론트 매스(Front Mass;411), 백킹 매스(Backing Mass;412), 플러스 구동전극(413), 마이너스 구동전극(414), 진동자(415)와 이들을 조여서 결합시켜주는 진동자 결합봉(330) 및 고정 넛트(nut;332) 등으로 구성하고, 진동자 결합봉(330)을 진동판 연결막대(310)와 일체화시켜 진동 에너지의 손실을 줄이도록 한다.The ultrasonic transducer 410 includes a front mass 411, a backing mass 412, a positive driving electrode 413, a negative driving electrode 414, a vibrator 415, and a vibrator that couples and couples them. Combination bar 330 and the fixing nut (nut) 332 and the like, and the oscillator coupling rod 330 is integrated with the diaphragm connecting rod 310 to reduce the loss of vibration energy.
이러한 초음파 트랜스듀서(410)는 싱글용과 듀얼용으로 구성할 수 있다.The ultrasonic transducer 410 may be configured for single use and dual use.
먼저 도 3을 참고하면 싱글 모드에서의 트랜스듀서(410)는 머리부(100) 쪽에서부터 진동판 연결막대(310)와 프론트 매스(411), 마이너스 구동전극(414), 진동자(415), 플러스 구동전극(413), 진동자(415), 마이너스 구동전극(414), 그리고 백킹 매스(412) 순서로 조립된다.First, referring to FIG. 3, the transducer 410 in the single mode has a diaphragm connecting rod 310, a front mass 411, a negative drive electrode 414, a vibrator 415, and a positive drive from the head 100. The electrode 413, the vibrator 415, the negative driving electrode 414, and the backing mass 412 are assembled in this order.
이 초음파 트랜스듀서(410)의 진동자(415)는 진동방향(311)이 도 6의 화살표방향으로 진동이 되도록 진동자 결합봉(330)에 결합된다.The vibrator 415 of the ultrasonic transducer 410 is coupled to the vibrator coupling rod 330 such that the vibration direction 311 vibrates in the direction of the arrow of FIG. 6.
진동판 연결막대 밑면의 넓이는 접하고 있는 프론트 매스(411)의 면적과 동일하게 구성하는 것이 바람직하고, 또한 위로 올라갈수록 이어지는 진동판 연결 막대(310)의 단면이 작아지는 혼(Horn)의 형태로 구성할 수 있다.The width of the bottom surface of the diaphragm connecting rod is preferably configured to be equal to the area of the front mass 411 which is in contact with the diaphragm connecting rod, and the cross section of the diaphragm connecting rod 310 which is continued upward becomes smaller. Can be.
이는 진동자(415) 표면의 진동을 모아서 진동이 진동판(110) 부근에서 변위(displacement)가 제일 크게 되도록 설계하여 진동판(110)이 큰 에너지를 만들어 낼 수 있는 혼(horn)의 기능을 진동판 연결 막대(310)에 부가한다.It is designed to collect the vibration of the surface of the vibrator 415 so that the vibration is the largest displacement (displacement) in the vicinity of the diaphragm 110, so that the diaphragm 110 can generate a large energy, the function of the horn (horn) connecting rod connecting rod To (310).
이때 프론트 매스(411)의 표면에서부터의 거리에 따른 그 단면의 좁아지는 비율을 유한 요소법(finite elements method)으로 계산하며 최소한 진동판 연결막대(310) 밑면의 면적이 진동판 연결막대 윗면의 넓이보다 2배 이상 되어야 한다.At this time, the ratio of the narrowing of the cross section according to the distance from the surface of the front mass 411 is calculated by the finite element method, and the area of the bottom of the diaphragm connecting rod 310 is at least twice the area of the upper surface of the diaphragm connecting rod. It should be strange.
이하, 도면을 참고하여 제어부에 대하여 설명한다.Hereinafter, the control unit will be described with reference to the drawings.
도 12는 제어부의 주요구성도로서, 몸체(400)에 위치한 제어부(420)는 주파수 발생부(430), 구동 전압 발생부(440), 공진 주파수 추적부(450), 진동 세기 조절부(460), 충전 및 전원 관리부(470) 등의 사용자 인터페이스 등의 회로가 마이크로 콘트롤러(MICRO CONTROLLER UNIT;MCU)(421)의 소프트웨어와 연동하여 동작한다. 12 is a main configuration diagram of the control unit, the control unit 420 located in the body 400 is the frequency generator 430, the drive voltage generator 440, the resonant frequency tracking unit 450, the vibration intensity control unit 460 Circuitry such as a user interface such as the charging and power management unit 470 operates in conjunction with the software of the microcontroller unit (MCU) 421.
듀얼모드의 경우 에너지 재생회로를 사용하여 소모전류를 줄이도록 동작된다.In the dual mode, an energy regeneration circuit is used to reduce the current consumption.
이러한 재생회로는 후술하기로 한다.This regeneration circuit will be described later.
사용자가 몸체(400)에 있는 전원 스위치(480)를 켜면 충전 배터리(402)의 전원이 제어부(420)로 공급되면서 MCU(421)가 동작을 시작한다.When the user turns on the power switch 480 in the body 400, the power of the rechargeable battery 402 is supplied to the controller 420, and the MCU 421 starts to operate.
본 발명에서는 전원 스위치(480)을 켜자마자 MCU(421)는 일정 주파수 대역 즉 fs에서부터 fe까지의 주파수를 스윕(sweep)하여 초음파 트랜스듀서(410)의 임피던스를 스캔한다. In the present invention, as soon as the power switch 480 is turned on, the MCU 421 scans the impedance of the ultrasonic transducer 410 by sweeping a frequency band, that is, a frequency from fs to fe.
이러한 스윕에 사용되는 주파수 발생은 공진주파수의 범위에 따라 외부 공진주파수 발생부(430)를 가질 수도 있고 MCU(421)가 직접 공진주파수를 발생시킬 수도 있다. 일반적으로 500kHz 이하는 MCU(421)가 직접 스위칭 신호를 발생시킨다. The frequency generation used for this sweep may have an external resonance frequency generator 430 according to the range of the resonance frequency, or the MCU 421 may directly generate the resonance frequency. In general, the MCU 421 or less below 500 kHz generates a direct switching signal.
도 13의 구동전압발생부의 주요 구성도를 참고하면, 구동전압 발생부(440)는 일반적으로 고전압발생 트랜스포머(431)를 주로 사용하며 구동 입력전원(434)으로는 충전 배터리(402)의 전원을 사용하거나 외부 교류 전원을 평활한 전원을 사용한다. 그 구동 입력전원(434)을 구동전원 스위칭 소자(432)를 사용하여 MCU(421)나 공진주파수 발생부(430)의 출력단인 Ps에서 구동전원 스위칭 소자(432)로 스위칭을 함으로써 같은 주파수의 고전압인 구동전원(435)을 생성하도록 동작된다. Referring to the main configuration diagram of the driving voltage generating unit of FIG. 13, the driving voltage generating unit 440 generally uses a high voltage generating transformer 431, and the driving input power 434 supplies power of the rechargeable battery 402. Use or smooth external AC power. The driving input power source 434 is switched from the output terminal Ps of the MCU 421 or the resonant frequency generator 430 to the driving power source switching element 432 by using the driving power source switching element 432 to obtain a high voltage of the same frequency. Is operated to generate a phosphorus drive power source 435.
한편, 진동자(415)의 두께와 이 진동자와 연결된 부품들의 구조 및 재질에 따라 트랜스듀서(410)는 몇 개의 공진주파수를 가질 수 있다.Meanwhile, the transducer 410 may have several resonance frequencies depending on the thickness of the vibrator 415 and the structure and material of the parts connected to the vibrator.
도 16의 주파스 스캔 대역을 도시한 도면을 참고하면, MCU(421)가 일정 주파수 대역 즉 fs에서부터 fe까지의 주파수를 스윕(sweep)하여 초음파 트랜스듀서(410)의 임피던스를 스캔한 결과표로서, 공진주파수가 "ResA, ResB, ResC"가 발생된 것을 확인할 수 있다. Referring to the diagram of the frequency scan band of FIG. 16, the MCU 421 sweeps a frequency band, that is, a frequency from fs to fe, to scan the impedance of the ultrasonic transducer 410 as a result table. It can be seen that the resonance frequency "ResA, ResB, ResC" is generated.
이 경우 MCU(421)는 공진주파수 대역별로 "ResA"에 해당하는 공진주파수 대역을 세정모드로 설정하고, "ResB"에 해당하는 공진주파수 대역을 미백 모드로, 그리고 "ResC"에 해당하는 공진주파수 대역을 가글링 모드로 설정하는 것이다.In this case, the MCU 421 sets the resonant frequency band corresponding to "ResA" to the cleaning mode for each resonant frequency band, sets the resonant frequency band corresponding to "ResB" to the whitening mode, and the resonant frequency corresponding to "ResC". Set the band to gargle mode.
이는 공진 주파수가 높아질수록 발생되는 캐비테이션의 크기가 작아지며 따라서 세정 효과도 변하게 된다. The higher the resonant frequency, the smaller the size of the generated cavitation and thus the cleaning effect.
즉, 낮은 공진 주파수는 큰 불순물의 세정에 적합함으로 세정 모드로, 더 높은 공진주파수는 미백 모드로, 더 높은 공진주파수는 살균이 가능한 가글 모드로 사용할 수 있게 할 수 있다. That is, the low resonant frequency is suitable for the cleaning of large impurities, so that it can be used in the cleaning mode, the higher resonant frequency in the whitening mode, and the higher resonant frequency in the gargle mode which can be sterilized.
따라서, 공진 주파수는 3개 발생할 수 있도록 구성하는 것이 바람직하나, 이에 한정하지 않고, 발생된 공진 주파수 중에서, 임의의 3개 공진 주파수를 선정하고, 순서대로 세정, 미맥, 가글 모드로 설정하면 된다.Therefore, it is preferable to configure three resonant frequencies. However, the present invention is not limited thereto. Any three resonant frequencies may be selected among the generated resonant frequencies, and may be sequentially set to the washing, micro, and gargle modes.
전원입력 시 MCU(421)는 공진주파수 대역별로 세정 모드, 미백 모드, 가글링 모드 등으로 현재 공진 주파수를 기억하고 있다가 사용자가 어느 모드를 선택하게 되면 바로 그 해당 주파수를 발생시키고 해당 공진 주파수를 추적하여 균일한 공진주파수가 발생하도록 제어하는 것이다.When the power is input, the MCU 421 memorizes the current resonant frequency in the cleaning mode, the whitening mode, and the gargling mode for each resonant frequency band, and when the user selects a mode, the MCU generates the corresponding frequency and tracks the corresponding resonant frequency. It is to control to generate a uniform resonance frequency.
예를 들어, 세정 모드가 선택되면 MCU(421)가 그 주파수에 해당하는 스위칭 신호를 출력하며 이 출력 신호가 구동전원 스위칭 소자(432)를 구동하면 구동전압발생 트랜스포머(431)의 일차측에 공급되는 구동입력 전원(434)이 선택된 주파수로 스윗칭하게 된다. For example, when the cleaning mode is selected, the MCU 421 outputs a switching signal corresponding to the frequency, and when the output signal drives the driving power switching element 432, it is supplied to the primary side of the driving voltage generating transformer 431. The driving input power source 434 is switched to the selected frequency.
일차측에서 발생된 전압은 승압되어 2차 측에 유기되고 연결된 진동자(415)에 연결에 진동이 일어난다. The voltage generated on the primary side is boosted to cause vibration in the connection to the vibrator 415 which is induced and connected to the secondary side.
공진 주파수는 부하에 따라 조금씩 바뀌게 되며 조금만 바뀌어도 많은 전류를 소모하고 진동 에너지도 급감함으로 공진 주파수를 계속 유지하여야한다. The resonant frequency changes little by little depending on the load. Even if it changes little, it consumes a lot of current and the vibration energy decreases rapidly.
도 16의 본 발명의 주파수 대역별 공진하는 주파수의 일례를 도시한 도면을 참고하면, X축에 사용하는 주파수와 Y축에 트랜스듀서의 임피던스를 나타내며 ResA, ResB , ResC 3개의 공진 주파수를 갖는 경우를 도시하였다.Referring to the diagram showing an example of the resonant frequency of each frequency band of the present invention of Figure 16, the frequency used for the X-axis and the impedance of the transducer on the Y-axis and has three resonant frequencies ResA, ResB, ResC Is shown.
도시된 바와 같이 구동 회로의 임피던스는 한 공진 주파수 근처에서는 그 공진주파수에서 제일 작아진다. As shown, the impedance of the drive circuit is the smallest at that resonance frequency near one resonance frequency.
본 발명은 이 같은 원리를 이용한 공진주파수 추적 기능을 제공하여 진동 에너지의 효율을 높인다.The present invention provides a resonant frequency tracking function using this principle to increase the efficiency of vibration energy.
도 15의 공진주파수 추적부의 주요 구성도를 참고하면, 공진주파수 추적부(450)는 구동전압(435)을 저항치가 큰 저항(Rg)을 사용하여 연결하여 트랜스듀서(410)의 동작에 영향을 최소화하면서 다이오드(D1)를 통해 정류시키고 콘덴서 C1으로 안정화시키면서 나온 전압을 저항 R1, R2로 나누어 MCU(421)의 A/D 입력으로 연결한다. Referring to the main configuration diagram of the resonant frequency tracking unit of FIG. 15, the resonant frequency tracking unit 450 connects the driving voltage 435 using a resistor Rg having a large resistance value to affect the operation of the transducer 410. While minimizing, rectifying through diode (D1) and stabilizing with capacitor C1, the voltage is divided by resistors R1 and R2 and connected to the A / D input of MCU 421.
MCU(421)는 주파수를 약간만 크도록 변경하여 그때의 임피던스인 A/D 값을 읽고 그 전에 읽은 임피던스인 A/D 값과 비교하여 더 커졌으면 발진 주파수를 반대로 낮추고 그 전에 읽은 임피던스 값과 비교하여 더 작아졌으면 발진 주파수를 더 높임으로 임피던스인 A/D값이 최소가 되게 하는 주파수를 구동전원 스위칭 소자(432)로 출력하여 순간 순간의 공진주파수로 최대로 근접시키면서 추적하는 기능이다. The MCU 421 changes the frequency so that it is only slightly larger, reads the A / D value of the current impedance and compares it with the A / D value of the previously read impedance, and if it is larger, lowers the oscillation frequency and compares it with the previously read impedance value. If it is smaller, the oscillation frequency is increased to output a frequency for minimizing the impedance A / D value to the driving power supply switching element 432 and tracks the maximum at the instantaneous instantaneous resonant frequency.
이러한 모드의 선택은 몸체(400)의 일부에 구성된 모드선택스위치(481)에 의하여 선택되게 할 수 있다.The selection of this mode may be selected by the mode selection switch 481 configured in a part of the body 400.
또한, 본 발명은 진동자(415)의 진동 강도를 조절할 수 있는 기능을 제공한다.In addition, the present invention provides a function that can adjust the vibration intensity of the vibrator (415).
진동 강도를 조절하기 위해서 진동자(415)에 가해주는 전기장의 세기를 변화시켜야 한다. In order to control the vibration intensity, the strength of the electric field applied to the vibrator 415 must be changed.
이것을 구현시키는 하나의 예를 도 14에 예시하였다. 도 14는 본 발명의 전기장의 세기 변화 장치와 관련된 주요 구성도로서, 도시된 바와 같이 MCU(421)의 D/A포트에 원하는 강도에 맞는 전압이 발생되도록 해당 레지스터들을 셋팅하고 그 전압을 진동세기 조정용 스위칭 소자(433)로 연결하여 그 베이스 단자를 스윗칭신호(Ps)로 스윗칭함으로 구동전원 스윗칭 소자(432)의 베이스 전류를 변화시킴으로 결국 진동의 세기를 조절할 수 있다.One example of implementing this is illustrated in FIG. 14. FIG. 14 is a diagram illustrating a main configuration of an apparatus for changing the strength of an electric field of the present invention. As shown in FIG. By changing the base current of the driving power supply switching element 432 by switching the base terminal to the switching signal Ps by connecting to the switching element 433 for adjustment, the intensity of vibration can be adjusted.
또한, 본 발명은 두 개의 트랜스듀서를 사용하는 듀얼모드를 제공한다.The present invention also provides a dual mode using two transducers.
도 10의 듀얼모드에서의 초음파 트랜스듀서의 일례를 도시한 사시도에 듀얼모드 트랜스듀서가 예시되어 있다.A dual mode transducer is illustrated in a perspective view illustrating an example of the ultrasonic transducer in dual mode of FIG. 10.
듀얼 트랜스듀서 모드를 제공함으로 진동에너지를 증폭시킬 수 있으며 더 다양한 공진 주파수를 구현할 수 있다. By providing a dual transducer mode, vibration energy can be amplified and more resonant frequencies can be achieved.
초음파 트랜스듀서의 진동자는 최소 2개가 한쌍으로 구동 전극판을 사이에 두고 한쌍 이상의 진동자가 연이어 위치한다. At least two vibrators of the ultrasonic transducer are positioned in series with one or more pairs of vibrators interposed between the driving electrode plates.
듀얼 트랜스듀서의 구성은 도 11에 도시한 바와 같이 트랜스듀서 사이에 또 다른 매스(600;이하, 미들 매스라 함)를 위치시키고, 이 미들매스의 길이를 조정하여 초음파 트랜스듀서 1에서 발생하여 미들매스로 전달되는 진동 파형에 초음파 트랜스듀서 2에서 발생되는 진동파형을 합성시킴으로 진동판으로 향하는 진동 에너지를 증대 또는 감쇄시킬 수 있다. As shown in FIG. 11, the configuration of the dual transducer is to place another mass (hereinafter, referred to as a middle mass) between the transducers, and adjust the length of the middle mass to generate the ultrasonic transducer 1 in the middle. By synthesizing the vibration waveform generated by the ultrasonic transducer 2 with the vibration waveform transmitted to the mass, it is possible to increase or decrease the vibration energy directed to the diaphragm.
이때 미들 매스(600)는 세라믹 소재 일 수도 있고 필요에 따라 2개 이상으로 구성 할 수도 있으며 그 사이에 금속 판 스프링(610) 등을 사용하여 진동의 전달을 늦춤으로 미들매스의 길이를 줄일 수 있다. At this time, the middle mass 600 may be a ceramic material or may be composed of two or more as necessary, and the length of the middle mass can be reduced by delaying the transmission of vibration by using a metal leaf spring 610 therebetween. .
그런데 듀얼모드는 소모 전류가 클 수 있기 때문에 충전 배터리를 사용하기 어려울 수 있음으로 소모되는 전류량을 획기적으로 줄여야 한다. However, since the dual mode may consume a large amount of current, it may be difficult to use a rechargeable battery. Therefore, the amount of current consumed must be drastically reduced.
이를 위하여 본 발명은 듀얼 모드에서 전류 재생회로를 사용하여 전류량을 줄이도록 하였다To this end, the present invention uses a current regeneration circuit in the dual mode to reduce the amount of current
이러한 재생회로가 도 17에 도시되어 있다.This regeneration circuit is shown in FIG.
도 21은 본 발명의 일실시예에 의한 재생회로의 주요 구성도로서, 듀얼모드에 사용하는 고전압 발생 트랜스(431)는 이차 측 코일을 두 개를 사용하며 이 두 개 코일의 권선을 서로 반대로 감으면 서로 반 파장 차이 나는 두 개의 고전압인 구동전원(435-1,435-2)이 만들어진다. FIG. 21 is a schematic view of a regeneration circuit according to an exemplary embodiment of the present invention, in which the high voltage generating transformer 431 used in the dual mode uses two secondary coils and winds the windings of the two coils opposite to each other. In this case, two high voltage driving power sources 435-1 and 435-2, which are half wavelength different from each other, are made.
전류 재생회로의 기본원리는 진동자(415)가 전기적으로 콘덴서라는 특성을 이용하여 반 파장마다 분극(polarization)을 하고 계속 충전되어 있는 전하를 반대로 충전되어 있는 상대 진동자(415)와 바꿔서 어느 정도 충전해주고 모자라는 전류만 구동전압 발생부(440)에서 채워줌으로 전류소모를 줄이는 방법이다. 이 전류재생 회로를 구현하기 위해서 도 118 에 보인바와 같이 4개의 전자식 스위치인 S1, S2, S3, S4를 통하여 각 트랜스듀서(410)의 플러스 구동전극(413)과 마이너스 구동전극(414)에 연결한다. 2개의 전자식 스위치인 S5, S6는 트랜스듀서(410)의 같은 각 구동전극(413, 414)에 연결한다. 여기서 t1, t2, t3, t4, t5, t6은 각 전자식 스위치의 트리거 신호로 그 신호가 1 일 때 전자식 스위치를 켜며, 그 신호 0 일 때 전자식 스위치를 끈다. The basic principle of the current regeneration circuit is that the vibrator 415 is polarized at every half wavelength by using the characteristics of an electric capacitor, and the charged charge is replaced with the opposite vibrator 415 which is charged in reverse, and charged to some extent. The lack of current is a method of reducing current consumption by filling the driving voltage generator 440. To implement this current regeneration circuit, as shown in FIG. 118, four electronic switches S1, S2, S3 and S4 are connected to the positive driving electrode 413 and the negative driving electrode 414 of each transducer 410. do. Two electronic switches S5 and S6 are connected to the same driving electrodes 413 and 414 of the transducer 410. Here, t1, t2, t3, t4, t5, and t6 are trigger signals of each electronic switch. When the signal is 1, the electronic switch is turned on and when the signal is 0, the electronic switch is turned off.
도 19에 각 트랜스듀서(410)의 구동 전원1(435-1), 구동 전원2 (435-2), 각 전자식 스위치의 트리거 신호를 도시하였다. 19 illustrates a trigger signal of the driving power source 1 435-1, the driving power source 2 435-2, and the electronic switches of the transducers 410.
각 구동전압이 제로크로스를 통과하는 시점인 a, b, c d 지점에서 t1, t2, t3, t4,를 d1 시간만큼 0으로 하여 구동전압 발생부(440)와 연결을 끊고, d1 시간만큼 t5, t6을 1로 하여 S5, S6을 켠다. 이렇게 함으로써 d1 시간동안 서로 반대로 각 트랜스듀서(410)에 충전된 전류가 S5, S6을 통하여 상대 트랜스듀서(410)로 어느 정도 충전되게 하고 t5, t6을 0 으로 하여 S5, S6을 끄면서 t1, t2, t3, t4,를 d2 시간만큼 1로 하여 구동전압 발생부(440)와 연결을 이어주면서 모자라는 전류를 보충한다. T1, t2, t3, t4, are disconnected from the driving voltage generator 440 by d1 time at points a, b, and cd, which are time points at which each driving voltage passes zero cross, and t5, by d1 time. Set t6 to 1 to turn on S5 and S6. By doing so, the currents charged in the respective transducers 410 are charged to the relative transducers 410 to some extent through S5 and S6 for the period d1, and t5 and t6 are set to 0 to turn off S5 and S6. t2, t3, t4, and d2 time to 1 to connect the drive voltage generator 440, while replenishing the current shortage.
이때 L5, L6을 S5, S6과 직렬로 연결함으로 S5, S6이 켜지면서 흐르는 급격한 전류의 흐름을 막는다. 트리거 신호를 발생시키기 위한 회로는 아날로그 회로로는 정확한 타이밍을 만들기 힘들며 일반 부품을 사용하는 디지털회로는 복잡하고 커지게 된다.At this time, by connecting the L5, L6 in series with S5, S6 to prevent the rapid flow of current flowing while the S5, S6 is turned on. The circuit for generating the trigger signal is difficult to make accurate timing with an analog circuit, and the digital circuit using general components becomes complicated and large.
본 발명은 사양에 따른 디지털 회로를 직접 설계해서 한 개의 작은 부품으로 구성할 수 있는 주문형 반도체(application specific integrated circuit)를 사용하여 전자식 스위치의 트리거링 신호를 발생시킨다.The present invention generates a triggering signal of an electronic switch using an application specific integrated circuit that can be directly designed to configure a digital circuit according to the specification to be composed of one small component.
도 18의 본 발명의 일실시예에 의한 전자식 트리거 신호 발생부를 도시한 도면을 참고하면, 구동전원(435)의 제로크로스 신호와 디지탈 클록 신호(437)를 주문형 반도체(asic)의 입력으로 사용한다. 디지탈 클록 신호(437)는 MCU(421)가 공급하거나 아주 빠른 클록이 필요하면 오실레이터 등을 사용한다.Referring to the drawing of the electronic trigger signal generator according to an embodiment of the present invention of FIG. 18, the zero cross signal and the digital clock signal 437 of the driving power source 435 are used as inputs of an application-specific semiconductor. . The digital clock signal 437 is supplied by the MCU 421 or uses an oscillator or the like if a very fast clock is needed.
초음파 주파수는 아주 빠른 주파수로 동작하기 때문에 여기에 동기 오차를 최소화하기 위해 빠른 클록을 입력으로 하고 기준 신호로는 분극이 바뀌는 시점인 구동전원의 제로크로스 신호를 사용한다. Since the ultrasonic frequency operates at a very high frequency, a fast clock is input to minimize the synchronization error, and a zero cross signal of the driving power source is used as the reference signal when the polarization is changed.
내부 로직 회로는 클럭 버퍼(clock buffer), 디코더(decoder), 클럭 나누기용 카운터(counter), 디멀티플랙서(de_multiplexer), 플리플럽(flip flop) 등의 회로를 사용한다. The internal logic circuit uses circuits such as a clock buffer, a decoder, a clock dividing counter, a de_multiplexer, and a flip flop.
연결부(300)는 몸체(400)의 진동에너지를 머리부(100)의 진동판(110)으로 전달할 수 있도록 진동판 연결 막대(310)로 구성하고, 진동판 연결막대(310)는 연결파이프(320)내에 밀착되도록 구성한다.The connecting portion 300 is composed of a diaphragm connecting rod 310 so as to transfer the vibration energy of the body 400 to the diaphragm 110 of the head 100, the diaphragm connecting rod 310 is in the connecting pipe 320 Configure to be in close contact.
즉, 연결파이프(320)는 일측에 몸체연결자(500)와 결합되는 것으로, 이 초음파 칫솔은 구강 내 액체를 담고 사용하여야 하며 따라서 입술을 다물고 사용할 수 밖에 없다. 따라서 연결파이프(320)는 가늘수록 사용하기가 편리하나, 진동을 전달하는 진동판 연결 막대(310)가 가늘면 진동의 전달이 감쇄되기 때문에 구강에 삽입될 수 있는 최대 크기로 연결파이프(320)를 구성하고, 그 내부에 진동판 연결 막대(310)를 삽설하되, 연결파이프(320)와 연결막대(310) 사이에는 공간이 없이 밀착되게 구성하는 것이다.That is, the connection pipe 320 is coupled to the body connector 500 on one side, the ultrasonic toothbrush should be used to contain the liquid in the oral cavity and therefore can not be used to shut the lips. Therefore, the connection pipe 320 is more convenient to use, but the diaphragm connecting rod 310 that transmits vibration is reduced when the transmission of vibration is attenuated to configure the connection pipe 320 to the maximum size that can be inserted into the oral cavity. And, while inserting the diaphragm connecting rod 310 therein, it is configured to be in close contact between the connecting pipe 320 and the connecting rod 310 without a space.
진동판 연결 막대(310) 끝에는 나사(311)가 형성되어 있어 머리부(100)와 연결 및 분리가 가능하다. A screw 311 is formed at the end of the diaphragm connecting rod 310 so that the diaphragm connecting rod 310 can be connected to and separated from the head 100.
진동 에너지의 원천인 초음파 트랜스듀서(410)는 몸체(400)에 위치하고 있고 그 몸체(400)의 재질은 일반적으로 플라스틱이며 연결부(300)의 연결 파이프(320) 역시 플라스틱 류로 만들 수 있다.The ultrasonic transducer 410, which is a source of vibration energy, is located in the body 400, and the material of the body 400 is generally plastic, and the connection pipe 320 of the connection part 300 may also be made of plastic.
이 재질의 경도 때문에 몸체와 연결막대를 바로 결합하게 되면 진동 에너지의 전달에 감쇄가 심하게 발생된다. 따라서 본 발명은 연결부(300)와 몸체(400) 사이에 신축성이 좋고 방수가 잘되는 실리콘 또는 고무와 같은 물질의 몸체연결자(500)를 사용하는 것이다.Due to the hardness of this material, when the body and the connecting rod are directly coupled, the attenuation occurs severely in the transmission of vibration energy. Therefore, the present invention is to use the body connector 500 of a material such as silicone or rubber that is elastic and good waterproof between the connection portion 300 and the body 400.
상술한 구성의 초음파 칫솔의 작동을 알아보면 다음과 같다.The operation of the ultrasonic toothbrush of the above-described configuration is as follows.
본 발명의 초음파 칫솔의 몸체(400)에 구비된 전원 스위치(480)를 온 하면, MCU(421)는 순간적으로 일정 주파수 대역 즉 fs에서부터 fe까지의 주파수를 스윕(sweep)하여 초음파 트랜스듀서(410)의 임피던스를 스캔하여 공진주파수를 메모리에 저장한다.When the power switch 480 provided in the body 400 of the ultrasonic toothbrush of the present invention is turned on, the MCU 421 instantly sweeps a frequency from a predetermined frequency band, that is, fs to fe, and the ultrasonic transducer 410. Scan impedance and store the resonant frequency in memory.
저장된 공진주파수는 순서대로 세정 모드, 미백 모드, 가글링 모드로 설정하여 저장한다. Stored resonant frequency is set in cleaning mode, whitening mode, and gargle mode in order.
그리고, 머리부(100)의 분출스트리밍홀(126)을 입안의 액체에 담그면, MCU(421)는 구동전압발생부(440)를 통하여 구동전압을 인가하면 트랜스듀서가 발진을 시작하면서 진동에너지를 프론트 매스, 진동판 연결막대, 그리고 진동판으로 전달되어 캐비테이션이 발생하며 진동판의 면이 이루는 각도에 의해 그 면과 마주하고 있는 분출 스트리밍 홀로 캐비테이션을 포함한 액체를 밀어내게 되며 이 때문에 생기는 마이너스 압력에 의해서 흡입 스트리밍 홀로 새로운 액체가 들어오게 된다. Then, when the ejection streaming hole 126 of the head part 100 is immersed in the liquid in the mouth, the MCU 421 applies a driving voltage through the driving voltage generator 440 to generate vibration energy while the transducer starts oscillation. Cavitation is transmitted to the front mass, the diaphragm connecting rod, and the diaphragm, and the angle of the face of the diaphragm pushes the liquid including the cavitation into the ejection streaming hole facing the face. Fresh liquid comes in alone.
이렇게 하여 캐비테이션된 액체가 분출 스트리밍 홀에서 나가 치아등을 세정하고 다시 흡입 스트리밍 홀로 들어와서 순환하게 된다.In this way, the cavitation liquid exits the jet stream hole, cleans the teeth, and enters the suction stream hole to circulate.
이러한 모드는 모드선택스위치(481)에 의하여 선택되게 할 수 있다. This mode can be made selected by the mode selector switch 481.
이하에서는 사용자가 세정모드를 선택한 것으로 설명한다.In the following description, the user selects the cleaning mode.
세정모드로 설정된 경우, MCU(421)는 세정모드 공진주파수에 해당하는 스위칭 신호를 출력하여, 이 출력 신호가 구동전원 스위칭 소자(432)를 구동하면 구동전압발생 트랜스포머(431)의 일차측에 공급되는 구동입력 전원(434)이 선택된 주파수로 스윗칭하게 된다. When the cleaning mode is set, the MCU 421 outputs a switching signal corresponding to the cleaning mode resonant frequency, and when the output signal drives the driving power switching element 432, the MCU 421 is supplied to the primary side of the driving voltage generating transformer 431. The driving input power source 434 is switched to the selected frequency.
일차측에서 발생된 전압은 승압되어 2차 측에 유기되고 연결된 진동자(415)는 진동하게 되고, 결국 연결막대(310)가 일정한 방향으로 진동하게 된다.The voltage generated on the primary side is boosted and induced and connected to the secondary side, the vibrator 415 vibrates, and eventually the connecting rod 310 vibrates in a constant direction.
결국 진동자가 진동함으로써, 입안의 액체는 초음파 진동하게 되고, 이물질 제거를 위한 세정 동작을 하게 되는 것이다.Eventually, as the vibrator vibrates, the liquid in the mouth vibrates ultrasonically, and a cleaning operation for removing foreign matters is performed.
이때, 공진 주파수는 부하에 따라 조금씩 바뀌게 되며 조금만 바뀌어도 많은 전류를 소모하고 진동 에너지도 급감함으로 공진 주파수를 계속 유지하기 위하여, 공진주파수 추적부(450)를 통하여 해당 공진주파수를 유지할 수 있도록 한다.At this time, the resonant frequency is changed little by little depending on the load and consumes a lot of current even if only a little change, so that the resonant frequency is maintained through the resonant frequency tracking unit 450 in order to maintain the resonant frequency.
한편, 머리부(100)의 흡입 스트리밍홀(125)로 액체를 유입하여 진동자에 의하여 초음파진동되게 하고, 분출 스트리밍홀(126)로 분출하여 세정작업을 보다 더 효율적으로 할 수 있는 것이다.On the other hand, the liquid is introduced into the suction streaming hole 125 of the head 100 to be ultrasonically vibrated by the vibrator, and to be ejected to the jet streaming hole 126 to perform the cleaning operation more efficiently.
이상에서 본 발명은 기재된 구체예에 대하여 상세히 설명되었지만 본 발명의 기술사상 범위 내에서 다양한 변형 및 수정이 가능함은 당업자에게 있어서 명백한 것이며, 이러한 변형 및 수정이 첨부된 특허 청구범위에 속함은 당연한 것이다.While the invention has been described in detail with respect to the described embodiments, it will be apparent to those skilled in the art that various modifications and variations are possible within the spirit of the invention, and such modifications and variations belong to the appended claims.

Claims (17)

  1. 진동자를 포함하는 초음파 트랜스듀서와 상기 트랜스듀서의 동작을 제어하는 마이크로 콘트롤러가 탑재된 제어부를 포함하는 몸체;A body including an ultrasonic transducer including an oscillator and a controller mounted with a microcontroller for controlling the operation of the transducer;
    금속 탄성체로 형성된 진동판과 상기 진동판이 삽설되어 고정되는 진동판커버와 상기 진동판 커버의 일측에는 흡입 스트리밍홀이 타측에는 분출 스트리밍홀이 형성된 머리부;및A diaphragm formed of a metal elastic body and a diaphragm cover in which the diaphragm is inserted and fixed, and a head portion having a suction streaming hole at one side of the diaphragm cover and an ejection streaming hole at the other side; and
    상기 머리부와 상기 몸체를 기구적으로 연결하는 연결부;A connecting portion for mechanically connecting the head and the body;
    를 포함하는 초음파 칫솔.Ultrasonic toothbrush comprising.
  2. 청구항 1에 있어서,The method according to claim 1,
    상기 몸체에서 발생된 초음파진동이 상기 연결부를 통하여 상기 진동판으로 전달되고, 상기 흡입스트리밍홀로 흡입된 액체가 상기 진동판에 의하여 진동되어 상기 분출스트리밍홀로 분출되는 초음파 칫솔.Ultrasonic vibration generated in the body is transmitted to the diaphragm through the connecting portion, the ultrasonic suction brush is sucked into the suction streaming hole is vibrated by the diaphragm and ejected to the jet stream hole.
  3. 청구항 1에 있어서,The method according to claim 1,
    상기 진동판은The diaphragm is
    일면을 경사절개면으로 구성하고, 상기 경사절개면과 상기 연결부가 이루는 각도가 예각인 초음파 칫솔.An ultrasonic toothbrush comprising one surface as an inclined incision surface and having an acute angle between the inclined incision surface and the connection portion.
  4. 청구항 3에 있어서,The method according to claim 3,
    상기 흡입스트리밍홀은 The suction streaming hole
    진동판의 끝면의 모서리가 있는 면에 구성하고, 상기 분출스트리밍홀은 상기 진동판의 경사절개면과 대향하는 위치에 구성된 초음파 칫솔.Ultrasonic toothbrush comprising a corner of the end face of the diaphragm, wherein the ejection streaming hole is formed in a position opposite to the inclined incision surface of the diaphragm.
  5. 청구항 3에 있어서,The method according to claim 3,
    상기 분출스트리밍홀은 상기 진동판의 경사절개면과 대향하는 위치의 끝 코너에 위치한 초음파 칫솔.And the jet stream hole is located at an end corner of a position opposite to the inclined incision surface of the diaphragm.
  6. 청구항 1에 있어서,The method according to claim 1,
    상기 진동판은The diaphragm is
    진동판의 앞면을 제외한 모든 면이 상기 진동판 커버의 내부에 밀착되도록 구성하는 초음파 칫솔.Ultrasonic toothbrush configured to be in close contact with the inside of the diaphragm cover all surfaces except the front of the diaphragm.
  7. 청구항 1에 있어서,The method according to claim 1,
    상기 머리부는The head is
    상기 연결부의 일단과 결합 또는 분리되도록 구성한 초음파 칫솔.Ultrasonic toothbrush configured to engage or separate with one end of the connection.
  8. 청구항 7에 있어서,The method according to claim 7,
    2개의 경사면을 갖는 진동판으로 구성된 가글링 머리부를 제공하는 초음파 칫솔.An ultrasonic toothbrush providing a gargling head consisting of a diaphragm having two inclined surfaces.
  9. 청구항 1에 있어서,The method according to claim 1,
    상기 진동판 연결막대는The diaphragm connecting rod
    상기 연결파이프내에 밀착되도록 구성되는 초음파 칫솔.Ultrasonic toothbrush configured to be in close contact with the connecting pipe.
  10. 청구항 1에 있어서,The method according to claim 1,
    상기 연결부와 상기 몸체 사이에 실리콘 또는 우레탄으로 구성된 몸체연결자;A body connector made of silicone or urethane between the connection part and the body;
    를 포함하는 초음파 칫솔.Ultrasonic toothbrush comprising.
  11. 청구항 1에 있어서,The method according to claim 1,
    상기 마이크로 컨트롤러는The microcontroller
    공진주파수별로 서로 다른 모드를 설정하고, 상기 몸체에 구비된 모드선택스위치의 선택모드에 따라 해당 공진주파수로 상기 진동자를 진동시키는 초음파 칫솔.An ultrasonic toothbrush which sets different modes for each resonant frequency and vibrates the vibrator at a corresponding resonant frequency according to a selection mode of a mode selection switch provided in the body.
  12. 청구항 11에 있어서,The method according to claim 11,
    상기 마이크로 컨트롤러는The microcontroller
    선택된 공진 주파수를 추적하여 공진상태를 유지할 수 있도록 하는 초음파 칫솔.Ultrasonic toothbrush that tracks the selected resonant frequency to maintain resonance.
  13. 청구항 11에 있어서,The method according to claim 11,
    상기 마이크로 콘트롤러는The microcontroller
    선택된 모드에서 진동의 강도를 조절할 수 있도록 구성되는 초음파 칫솔.An ultrasonic toothbrush configured to adjust the intensity of vibration in the selected mode.
  14. 청구항 1에 있어서,The method according to claim 1,
    상기 몸체는The body is
    하나의 초음파 트랜스듀서로 구성된 싱글 모드 또는 2개의 초음파 트랜스 듀서로 구성하고, 각 초음파 트랜스듀서 사이에 미들 매스가 개재된 듀얼 모드로 구성되는 초음파 칫솔.An ultrasonic toothbrush consisting of a single mode consisting of one ultrasonic transducer or two ultrasonic transducers, and of a dual mode with a middle mass interposed between each ultrasonic transducer.
  15. 청구항 14에 있어서,The method according to claim 14,
    상기 몸체를 듀얼 모드로 구성하는 경우에When the body is configured in dual mode
    상기 미들매스를 2개 사용하고 각 미들매스 사이에 판 스프링이 개재된 초음파 칫솔.Ultrasonic toothbrush using two of the middle mass and the leaf spring interposed between each middle mass.
  16. 청구항 14에 있어서,The method according to claim 14,
    상기 몸체를 듀얼 모드로 구성하는 경우에 전류 재생회로를 제어부에 구성한 초음파 칫솔.An ultrasonic toothbrush configured with a current regeneration circuit in the control unit when the body is configured in the dual mode.
  17. 청구항 16에 있어서,The method according to claim 16,
    상기 전류 재생회로에 주문형 반도체(application specific integrated circuit)를 사용하고, 그 입력의 하나로 제로크로스 신호를 사용하는 초음파 칫솔.An ultrasonic toothbrush using an application specific integrated circuit in the current regeneration circuit and using a zero cross signal as one of its inputs.
PCT/KR2016/004332 2015-05-15 2016-04-26 Ultrasonic toothbrush WO2017135513A1 (en)

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