KR200312996Y1 - Piezo-electric vibration unit using a ultrasonic - Google Patents

Abstract

The present invention relates to a portable piezoelectric vibrator using ultrasonic waves, in particular, to improve the piezoelectric vibrator used for skin care by oscillating the ultrasonic wave through the self-excited oscillation circuit, the vibration mode of the radial direction using the oscillating oscillation circuit Apparatus for allowing a change in the output frequency band of the ultrasonic wave does not occur by applying, and is easy to carry and can be used for a long time, the body portion consisting of the upper casing 110 and the lower casing 120; One side of the panel is provided with a piezoelectric element 210 for oscillating the ultrasonic wave is located inside the body portion 100, the other side is composed of a blade 220 protruding to one side of the body portion 100 Eastern 200; A battery 300 provided inside the body part 100 to charge a predetermined amount of power; A switch 410 provided on an outer surface of the upper casing 110 of the body part 100 and positioned inside the body part 100 to control power supplied from the battery 300 to the piezoelectric element 210. Consists of a control unit 400 consisting of a PC 420, by applying a vibration mode in the radial direction using the oscillation type oscillation circuit to a piezoelectric vibrator used for skin care by oscillating ultrasonic waves, high current impedance even portable It can be used for a long time through the center of the piezoelectric element, so that the change of frequency band of the ultrasonic wave that is output does not occur, so it is easy to control the oscillation circuit to increase the skin beauty effect of the piezoelectric vibrator and improve user convenience. To make it possible.

Description

Portable piezoelectric vibrator using ultrasonic wave {Piezo-electric vibration unit using a ultrasonic}

The present invention relates to a portable piezoelectric vibrator using ultrasonic waves, in particular, to improve the piezoelectric vibrator used for skin care by oscillating ultrasonic waves through a self-excited oscillation circuit, and applying a vibration mode in a radial direction using a percussion oscillation circuit. This is a device to make it easy to carry and use for a long time without changing the output frequency band of ultrasonic wave. It is a vibration mode in the radial direction using a type oscillating circuit that is applied to a piezoelectric vibrator used for skin beauty by oscillating ultrasonic waves. It is possible to use it for a long time by using a small current because of high impedance because of high impedance, and it is easy to control the oscillation circuit because there is no change of frequency band of ultrasonic wave output by supporting the center of piezoelectric element. Increase user effectiveness while at the same time It relates to a device that can improve.

In general, ultrasonic waves refer to sound waves of about 20,000 Hz or more that cannot be felt by the human ear. Ultrasonic waves are essentially the same as those in the audible range, but because of their high frequency and short wavelength, they are quite strong vibrations. Because of this, it also exhibits properties that cannot be seen in normal sound, and these ultrasonic waves are artificially generated through an ultrasonic oscillator using a semiconductor.

The ultrasonic oscillator is made of a piezoelectric element for converting an electrical signal into a mechanical deformation, and the ceramic as a main material, the piezoelectric element operating as described above, piezo ignition element, ultrasonic vibrator, ceramic filter element It is utilized in various piezoelectric fields.

In addition, an oscillation circuit configured such that the piezoelectric element oscillates ultrasonic waves is largely divided into a self-excited oscillation circuit and a percussion oscillation circuit. The self-excited oscillation circuit is an oscillation circuit using elements such as resistors, capacitors, and inductances. The oscillation circuit is an oscillation circuit using an active element such as an IC.

1 is a perspective view showing a conventional piezoelectric vibrating apparatus using ultrasonic waves, and is a sectional view showing a vibration unit for a piezoelectric vibrating apparatus using conventional ultrasonic waves, and FIG. 3 shows a piezoelectric vibrating apparatus using conventional ultrasonic waves. It is a circuit diagram.

Conventional piezoelectric vibrating apparatus using ultrasonic waves, as shown in Figures 1 to 3, the power supply unit consisting of a vibration unit 10 and the adapter 21 is provided with a piezoelectric element 12 inside the metal cap (11). 20; A control unit 30 which receives power through the power supply unit 20 and is controlled by a switch 31; It is composed of a body portion 40 including the vibrating portion 10 and the control unit 30.

As shown in FIGS. 1 and 2, when the conventional piezoelectric vibrator using the ultrasonic wave is configured as described above, when the adapter 21 is plugged into an outlet, the power supply unit 20 depressurizes the power through the adapter 21. Supply to the control unit 30 provided in the body portion 40, and then, the control unit 30 supplies power to the piezoelectric element 12 according to the control of the switch 31, the metal cap The piezoelectric element 12 fixed to the inside of the (11) generates a vibration of about 1MHz frequency band in the vertical direction in the drawing, the user to transfer the vibration generated in the piezoelectric element 12 as described above The metal cap 12 is to be moved to hold the body portion 40 to contact the desired body portion.

Referring to the circuit diagram of the conventional piezoelectric vibrating apparatus using ultrasonic waves, as shown in FIG. 3, power input to the power supply unit 20 through the adapter is R (resistance), C (condenser), The frequency of the ultrasonic wave to be oscillated to the piezoelectric element is determined by the circuit configuration of Q (transistor) and T (trans), and the AC waveform driven by T1, Q1, Q5 is stepped up at T2 of the vibrator 10 and the piezoelectric element Ultrasonic output is made by inputting to (12).

However, the conventional piezoelectric vibrator using ultrasonic waves is composed of self-oscillating circuit consisting of R, C, Q, etc., and oscillation in the thickness direction is generated in the piezoelectric element. As a result, the efficiency is very low, and accordingly, the power line must always be connected to the body part through an adapter for supplying power, which is inconvenient to carry, and inconvenient to use, and in contact with the user's skin. Since the piezoelectric element is directly fixed to the vibrating part, the frequency characteristic of the output ultrasonic wave is rapidly changed, so that there is a technical problem that the control for uniformly outputting the frequency of the ultrasonic wave generated is difficult.

The present invention is to solve the above problems, by applying a vibration mode in the radial direction using the oscillation circuit oscillating the piezoelectric vibrator used for skin care by oscillating ultrasonic waves, high impedance, long time through a small current portable It can be used, and the change of frequency band of ultrasonic wave is not generated by supporting the center of piezoelectric element, so it is easy to control the oscillation circuit so as to increase skin beauty effect of piezoelectric vibrator and improve user convenience. The present invention provides a portable piezoelectric vibrator using ultrasonic waves.

This invention has a body portion consisting of an upper casing and a lower casing; One side is provided in the form of a panel is provided with a piezoelectric element for oscillating ultrasonic waves located inside the body portion, the other side is made of a blade protruding to one side of the body portion; A battery provided inside the body to charge a predetermined amount of power; And a control unit comprising a switch provided on an outer surface of the upper casing of the body and a control unit which is located inside the body to control power supplied from the battery to the piezoelectric element.

1 is a perspective view showing a piezoelectric vibrator using a conventional ultrasonic wave,

Figure 2 shows a vibration unit for a piezoelectric vibrator using a conventional ultrasonic

Cross-section,

3 is a circuit diagram showing a piezoelectric vibrator using conventional ultrasonic waves;

4 is a perspective view showing a portable piezoelectric vibrator using ultrasonic waves of the present invention;

5 illustrates a portable piezoelectric vibrator using ultrasonic waves of the present invention.

Exploded View,

6 is a cross-sectional view taken along the line A-A of FIG.

7 is a vibration unit for a portable piezoelectric vibrator using the ultrasonic wave of the present invention

Top view showing,

8 is a body portion for a portable piezoelectric vibrator using the ultrasonic wave of the present invention

Back view showing the upper casing,

9 is a circuit diagram showing a portable piezoelectric vibrator using ultrasonic waves of the present invention,

10 is another for the portable piezoelectric vibrator using the ultrasonic of the present invention

Top view which shows the vibration part of an Example.

<Explanation of symbols for the main parts of the drawings>

100: casing 110: upper casing

111: support pin 120: lower casing

121: fixing protrusion 200: vibration part

210: piezoelectric element 211: support rubber

220: blade 221: bend

222: fixed tab 300: battery

400: control unit 410: switch

420: PC 421: support pin ball

500: charger

An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

4 is a perspective view showing a portable piezoelectric vibrator using ultrasonic waves of the present invention, FIG. 5 is an exploded perspective view showing a portable piezoelectric vibrator using ultrasonic waves of the present invention, and FIG. 6 is a cross-sectional view taken along line A-A of FIG.

In addition, Figure 7 is a plan view showing a vibration portion for a portable piezoelectric vibrator using ultrasonic waves of the present invention, Figure 8 is a rear view showing the upper casing of the body portion for a portable piezoelectric vibrator using the ultrasonic waves of the present invention, 9 is a circuit diagram showing a portable piezoelectric vibrator using ultrasonic waves of the present invention.

4 to 9, the portable piezoelectric vibrator using the ultrasonic wave of the present invention includes a body portion 100 including an upper casing 110 and a lower casing 120; One side of the panel is provided with a piezoelectric element 210 for oscillating the ultrasonic wave is located inside the body portion 100, the other side is composed of a blade 220 protruding to one side of the body portion 100 Eastern 200; A battery 300 provided inside the body part 100 to charge a predetermined amount of power; A switch 410 provided on an outer surface of the upper casing 110 of the body part 100 and positioned inside the body part 100 to control power supplied from the battery 300 to the piezoelectric element 210. Consisting of the control unit 400 made of a PC 420 to the basic characteristics of the technology.

Hereinafter, the operation of the present invention with reference to Figures 4 to 6 as follows.

As shown in FIGS. 4 and 5, the portable piezoelectric vibrator using the ultrasonic wave of the present invention configured as described above, the body portion 100 is composed of a top and bottom separable upper and lower casing 120, 120, The vibrator 200, the battery 300, and the controller 400 are provided inside the body part 100.

In this case, two piezoelectric elements 210 are fixed to the blade 220 of the vibrator 200, respectively, on the upper side and the lower side thereof. When the piezoelectric element 210 vibrates, the user may piezoelectric element 210. The blade 220 which is vibrated by) is brought into contact with a desired skin part.

The blade 220 has a bent portion 221 is formed to be inclined at a predetermined angle, it is possible to easily contact the bent portion 221 to the skin.

In addition, the piezoelectric element 210 of the vibrator 200 is generally formed in a disk shape, the piezoelectric element 210 is supplied with power from the control unit 400 to oscillate in the radial direction.

In addition, the control unit 400 is formed of a PCB (PCB) from the battery 300 to the piezoelectric element 210 under the control of the switch 410 provided on the upper casing 110 of the body portion 100. It will supply power.

In addition, the battery 300 is provided to be able to charge a constant power, at the same time connected to the control unit 400 to supply power, as shown in Figures 4 and 5, the battery 300, It is automatically charged by placing it in the charger 500 connected to the outlet for a predetermined time.

Therefore, when not using a portable piezoelectric vibrator using the ultrasonic wave of the present invention, when the body portion 100 is mounted on the charger 500, the battery 300 is automatically charged, and the body is used when Separating the part 100 from the charger 500 will be easy to use without a power line.

In addition, the piezoelectric element 210 provided on the lower surface of the blade 220 of the vibrator 200, as shown in FIGS. 5 to 7, the center point of the lower casing of the body portion 100 ( 120 may be configured to be elastically supported by the support rubber (211).

Therefore, with respect to the piezoelectric element 210 which is fixed to the blade 220 and vibrates in the radial direction, the center portion of the piezoelectric element 210 that does not generate displacement is the body portion 100 as the support rubber 211. Supported by, to maximize the ultrasonic output of the piezoelectric element 210.

In detail, since the piezoelectric element 210 uses the resonance characteristic, the piezoelectric element 210 itself also has the resonance characteristic, but the piezoelectric element 210 exhibits a very sharp characteristic when the piezoelectric element 210 is mechanically free. Therefore, the ultrasonic output according to the frequency can be changed very rapidly.

That is, since the resonant frequency changes when the piezoelectric element 210 touches the skin, the ultrasonic output may also change rapidly. In order to compensate for this disadvantage, the piezoelectric element 210 is mechanically constrained to lower the sharpness to reduce the resonance curve. By softening, it is possible to minimize the amount of change in the ultrasonic output with frequency.

In addition, as shown in FIG. 7, the blade 220 of the vibrator 200 has a front end B having no displacement in the radial direction lower than the upper casing 110 of the body part 100. At the same time supported by the support pin 111 integrally formed in the direction, the fixing tab 222 is formed at one end of the front end (B) does not occur displacement fixing protrusions protruding to the body portion ( 121 may be inserted into and supported.

That is, when the piezoelectric element 210 is fixed to the upper and lower surfaces of the blade 220 to vibrate in the radial direction, the blade 220 is displaced in the radial direction, the tip (which does not occur such a displacement) When B) is measured in advance, and the distal end B is not displayed, as shown in FIG.

Therefore, when the front end (B) does not generate displacement in the radial direction with respect to the blade 220, it is possible to minimize the attenuation of the output of the ultrasonic wave.

In this case, the support pin 111 protruding from the bottom of the upper casing 110 to support the front end (B) does not occur in the radial direction with respect to the blade 220 is shown in Figure 8, The support pin 111 is formed to have the same cross-sectional shape as that of the tip B in which the displacement in the radial direction does not occur with respect to the blade 220, so that the displacement of the support pin 111 does not occur on the blade 220. (B) is only supported, so that the support pin 111 can support the blade 220, in the PC 420 of the controller 400 located between the upper casing 110 and the blade 220 5 and 6, the support pin hole 421 is formed through the same as the shape of the support pin 111.

At the same time, as shown in FIGS. 5 and 7, the blade 220 is provided with a fixing tab 222 at one end of the tip B in which the displacement in the radial direction does not occur as described above. The fixing tab 222 may be inserted to fix the fixing protrusion 121 protrudingly formed on the inner surface of the lower casing 120 of the body part 100, and the lower casing 120 may be fixed to the fixing tab 222 of the blade 220. By inserting and fixing the fixing protrusion 121 of), it is possible to prevent the blade 220 from moving in the radial direction from the body portion 100 in advance.

In addition, the PC 420 of the control unit 400 is formed of a percussion oscillation circuit. Referring to a circuit diagram of a portable piezoelectric vibrator using ultrasonic waves according to the present invention, as shown in FIG. When power is supplied from the control unit 400 to the control unit 400, the PCB 420 of the control unit 400 sets the oscillation frequency in an oscillator having an IC to boost the oscillated AC waveform at T1 of the vibrator 200 to piezoelectric. The ultrasonic output is obtained by being input to the device 210.

By applying the oscillation type oscillation circuit as described above, the oscillation can be oscillated at a frequency of about 25 kHz in the radial direction through a high impedance, so that the efficiency is high and the battery 300 can be used for a long time. When the user touches the blade 220 to the body part, since the frequency change by the passive element does not occur, the ultrasonic output can be controlled evenly at the optimum frequency, so that the number of the piezoelectric elements 210 can be controlled. Even 30% reduction will yield the same ultrasonic power.

10 is a plan view showing a vibration unit of another embodiment of a portable piezoelectric vibrator using ultrasonic waves of the present invention.

As another embodiment of the portable piezoelectric vibrator using the ultrasonic wave of the present invention, as shown in FIG. 10, the piezoelectric element 210 of the vibration unit 200 has a rectangular shape and has a length on the upper and lower sides of the blade 220. Two parallel to each other in a direction, and the piezoelectric element 210 is formed in a rectangular shape as described above, and fixed to the blade 220 in the shape of approximately '11', a generally applied disk shape The same effect as that of the piezoelectric element 210 can be obtained.

Therefore, the portable piezoelectric vibrator using the ultrasonic wave of the present invention is conventionally composed of a resistor, a condenser, a transistor, and the like, and improves a self-excited oscillation circuit which generates a vibration in a thickness direction of about 1 MHz. By applying the oscillation type oscillation circuit which generates vibration, it is possible to efficiently use it for a long time even with a low power supply with high impedance, and accordingly, it is possible to supply power using the battery 300 without a power line, so that it is portable and easy to use. It is easy.

In addition, by setting the support portion of the vibrator 200 which is in contact with the skin of the user where the displacement does not occur, it is possible to prevent the frequency characteristics of the output ultrasonic waves from changing drastically, and evenly to generate the frequency of the ultrasonic waves to be oscillated. There is an advantage that the control for output is easy.

The present invention as described above, by applying the vibration mode in the radial direction using the oscillation type oscillation circuit to the piezoelectric vibrator used for skin beauty by oscillating the ultrasonic wave, high impedance, long-term use with a small current, even portable Since the change of the frequency band of the ultrasonic wave output by supporting the center of the device does not occur, it is easy to control the oscillation circuit, thereby increasing the skin beauty effect of the piezoelectric vibrator and improving the user's convenience.

Claims (5)

A body part comprising an upper casing and a lower casing; One side is provided in the form of a panel is provided with a piezoelectric element for oscillating ultrasonic waves located inside the body portion, the other side is made of a blade protruding to one side of the body portion; A battery provided inside the body to charge a predetermined amount of power; And a control unit comprising a switch provided on an outer surface of the upper casing of the body and a control unit which is located inside the body to control power supplied from the battery to the piezoelectric element. The portable piezoelectric vibrator using ultrasonic waves according to claim 1, wherein the PC ratio of the control unit is a vibration oscillation circuit. The piezoelectric vibrator using ultrasonic waves according to claim 1, wherein the piezoelectric element provided on the lower side of the blade of the vibrator portion is elastically supported by an elastic material on a lower casing of the body portion. According to claim 1, wherein the blade of the vibrating portion is supported by a support pin protruding integrally downwardly to the upper casing of the body portion in the radial direction does not occur in the radial direction of the tip of the tip does not occur displacement Portable piezoelectric vibrator using ultrasonic waves, characterized in that the fixing tab is formed on one side end is inserted and supported by the fixing protrusion protruding from the body portion. The piezoelectric vibrator using ultrasonic waves according to claim 1, wherein the piezoelectric elements of the vibrating unit have a rectangular shape and are each formed in parallel to the upper and lower sides of the blade in the longitudinal direction.