TW423967B - Ultrasonic beauty culture apparatus - Google Patents

Abstract

The object of this disclosed invention is to provide an ultrasonic beauty culture apparatus capable of obtaining comfortable massage effects. For achieving the above-mentioned object, an ultrasonic beauty culture apparatus comprises a probe having a metallic part that comes in contact with a skin by one surface of the metallic part and has a piezoelectric element 11 to be stuck to another surface of the metallic part; an oscillator 121 for generating signals of a ultrasonic frequency; and a drive circuit 122 for power-amplifying the output signal. Further, the ultrasonic beauty culture apparatus comprises an oscillation drive circuit 12 for supplying high frequency electric power to the piezoelectric element 11 for generating ultrasonic vibrations by the piezoelectric element 11; a detecting circuit 13 for detecting the output fluctuation of the piezoelectric element 11, for example, fluctuation of supply power to the piezoelectric element 11; and a control circuit 14 for controlling the output from the oscillation drive circuit 12 so as to maintain the output of the piezoelectric element 11 constant according to the detected results.

Description

423967 ^ V. Description of the invention (1) * ~ --- [Technical field to which the invention belongs] The present invention relates to a container for massaging skin using ultrasonic vibration. < Wu Yinbo [It is known in the market that the device is currently used in the market, and the super lamp is used for the indicator lamp, and after the composition. According to the control technology of the time of the wave of the wave, in the past, the surface or the AC power supply including the audio waveguide, the current, and the AC power supply were provided to the police, and the stop output circuit was tested in special features. Various proposals have been made. Japanese public real frequency and sub-ac exchanges, output of supersonic source output indicator lights, etc. The use of ultrasonic beauty devices or therapeutic devices, etc. is published in Hei-35316, which describes an AC power supply for a supersonic waveguide that does not become a power output at the same time. Combined device for overlapping output of AC power supply for state waveguide and frequency extraction device for AC power used to extract warning display lamp to reduce the frequency warning display and warning display of frequency of ultrasonic waveguide. 9 -24821 No. 3 discloses an ultrasonic device using the ultrasonic device, including a sensor whose ultrasonic head stops contact with the biological surface, and an ultrasonic wave radiated from the ultrasonic head when the sensor stops outputting a signal from the sensor. The stimulus is weakened or stopped [Problems to be solved by the invention] Department: Ξ 金 ίί 2 Ultrasonic waves of a probe with a piezo element bonded to a metal surface that becomes a muscle contact surface

V. Description of the invention (2) The condition of the beauty container 'The piezoelectric element has the characteristics of impedance: skin', which changes from g to piezoelectric element through the circuit structure of the beauty and slimming device, and cannot be achieved; Massage effect In view of the above-mentioned questions, the present invention of the M.B.S. is based on the above-mentioned questions. The purpose of the invention is to provide a comfortable massage "fruit ultrasonic beauty device." Means to solve the problem] In order to solve the above-mentioned problem, for example, the ultrasonic beauty device of the invention claimed in item ^ of the patent application includes: a probe having a metal portion on one side which becomes a skin contact surface, and the other side of the metal portion A connected piezoelectric element; an oscillating drive circuit that supplies high-frequency power to the piezoelectric element to generate ultrasonic vibration to the piezoelectric element; a detection circuit that detects a change in the output of the piezoelectric element; and a control circuit According to the detection result, the output control of the oscillating driving circuit is executed, so that the output of the piezoelectric element becomes a fixed value. For example, the ultrasonic beauty device of the invention in the second patent application range, including : A probe having a metal portion on one side which becomes the skin contact surface, and a piezoelectric element bonded to the other side of the metal portion; an oscillating drive circuit that supplies high-frequency power to cause the piezoelectric element to generate ultrasonic vibration to The piezoelectric element;

Page 5 423 967 V. Description of the invention (3) --- Detecting circuit detects the output change of the piezoelectric element; and the control circuit implements the output change of the oscillating drive circuit to make the output of the piezoelectric element The level becomes a predetermined output level selected from a plurality of predetermined output levels according to the detection result. The invention of item 3 in the scope of patent application is an ultrasonic beauty device as in item 1 or 2 of the scope of patent application, wherein the detection circuit is provided on the output side of the oscillation drive circuit to the piezoelectric element. The invention according to item 4 in the scope of patent application is an ultrasonic beauty device as in item 1 or 2 of the scope of patent application, wherein the detection circuit is provided on the input side of the oscillating driving circuit. The invention according to item 5 of the scope of patent application is an ultrasonic cosmetic device as described in item 1 or 2 of the scope of patent application, wherein the control circuit controls the power supplied to the piezoelectric element from the oscillation driving circuit. For example, the invention in the sixth scope of the patent application is an ultrasonic beauty device as in the first or second scope of the patent application, wherein the control circuit controls the oscillation frequency of the oscillation drive circuit. For example, the invention of the seventh scope of the patent application is in the ultrasonic beauty device of the first or second scope of the patent application, wherein the control circuit controls the duty of the vibratory driving circuit. For example, the invention in the eighth aspect of the patent application is an ultrasonic beauty device as in the fifth aspect of the patent application, wherein when the control circuit starts to supply power to the piezoelectric element, the oscillation drive circuit performs an order less than the target. The control of power supply starts. If the invention in the scope of patent application No. 9 is in the scope of patent application

5. Description of the invention on page 6 (4) The ultrasonic cosmetic device of item 5, wherein the control circuit performs an order to make the oscillation drive circuit smaller than the target electric power when the state of the wide contact of the skin contact surface changes. Power began to be supplied. [Embodiment of the invention] FIG. 1 is a schematic circuit configuration diagram of an ultrasonic cosmetic device according to Embodiment 1 of the present invention, FIG. 2 is a sectional view showing a probe and a body, and FIG. 3 is a piezoelectric element shown in FIG. The impedance characteristic diagram near the frequency, FIG. 4 is a control explanatory diagram of the control circuit shown in FIG. 1, and the embodiment i will be described using these diagrams. As shown in FIG. 2, this ultrasonic beauty device is provided with one surface (the upper surface in FIG. 2) serving as a skin-contacting metal portion 10 and the other surface (in FIG. 2) having an adhesive surface of a component adhered to the metal portion 10. The probe 1 ′ of the piezoelectric element η is further provided with a body 2 connected to the probe 1 of the probe 1 via a connection line CW. The circuit structure of the main body 2 is shown in FIG. 1, and is provided with an oscillating drive circuit 12 that supplies high-frequency power to the piezoelectric element 11 to generate ultrasonic vibration, and a piezoelectric element 丨 丨Output change detection circuit 3, a control circuit 14 that controls the output of the oscillation drive circuit 2 as the output of the piezoelectric element n becomes a constant value according to its detection result. In more detail, the above-mentioned circuit structure, the oscillation driving circuit 12 is provided by the oscillator 121 that generates a signal of an ultrasonic frequency, and amplifies the signal power generated by the oscillator 121 as a driving signal (high-frequency power) S12 to the piezoelectric element U The driving circuit 122 is configured. The lead test circuit 1 3 detects the high-frequency power supplied to the piezoelectric element.

4 23 96 7 V. Description of the invention (5) The voltage according to the detected power level is output as the detection signal S1 3 to the control circuit 14. That is, the voltage level of the detection signal S13 becomes higher as the power supplied to the piezoelectric element 11 becomes larger. The voltage level of the detection signal S1 3 becomes lower as the power supplied to the piezoelectric element η becomes smaller. In addition, the voltage level of the detection signal S13 in the normal contact state determined at the design stage is set as the target voltage level. Here, the impedance characteristics of the piezoelectric element 11 will be described. This impedance characteristic is shown in Fig. 3, and it becomes characteristic A and characteristic B when the skin is in contact with the broad muscle contact surface and when it is not in contact. In the example of FIG. 3, when the circuit is oscillated at a frequency of 1000 kHz, the characteristic A impedance is 15 Ω, and the characteristic B impedance is as small as 2 Ω. Therefore, when the vibration is caused by a voltage of 20V, the output is 27W (02 V + 15Ω) due to the impedance of characteristic a, and 200ff (= 02V + 2Q) under the impedance of characteristic B. When the impedance characteristic of the electric element 11 changes from the characteristic a to the characteristic β, the power consumption (= acoustic output) increases. That is, a change in the skin's contact state with the skin-contacting surface of the metal portion 10 becomes a change in the impedance of the piezoelectric element η 'into a change in the electric power of the piezoelectric element 11, and finally appears as a change in acoustic output. Therefore, when the sound output is changed, not only a suitable massage effect cannot be obtained, but also another undesired problem may occur. Therefore, in Embodiment 1 ', in addition to the detection circuit 3, a control circuit 14 for adjusting the value of the driving signal S1 2 according to the detection signal S1 3 from the detection circuit 13 is provided. That is, if the voltage level of the detection signal si 3 is lower than the target voltage level ', as the voltage level of the detection signal S13 from the detection circuit 丨 3 becomes the target voltage level, the supply voltage to the oscillation driving circuit 12 is increased. Control of the electric power of the electric element 11. However, if the voltage level of the detection signal s 丨 3

V. Description of the invention (6) The voltage level G that is higher than the target Leith # reactor is higher than the voltage level of the detection circuit S13 and is supplied to the piezoelectric element at the voltage level. Power reduction * Control of power of item 11. As shown in the operation example of FIG. 4, the electric power of the A energy element 11 is in a normal contact state, and the piezoelectric element level becomes the target i: the standard power is supplied, and the voltage of the detection element 3 is the piezoelectric element 11. U of electricity. When the holding Sheng drive circuit 12 supplies factory ramie from the normal contact state to the skin contact surface being forced on the skin and the top pressure state (time tn), the impedance value of the piezoelectric element 11 changes to the power of the piezoelectric element 11, The self-testing circuit 13 outputs a detection signal S1 3 of a voltage level that is reduced by the amount that the power supply is reduced by two degrees. When the test signal S13 is captured into the control circuit 14, the voltage level of the oscillation drive circuit 12 is increased as the voltage level of the detection signal S13 from the test circuit 13 becomes the target voltage level. control. By repeating this control, the voltage level of the detection signal S13 becomes the target voltage level, and the power supplied to the piezoelectric element 11 becomes the target supply power (time t12). Then "when the skin contact surface leaves the skin in a non-contact state (time 11 3)", the impedance value of the piezoelectric element 11 becomes smaller due to the supply of the piezoelectric element]] The power becomes larger ', the self-detection circuit 1 3 outputs follow The detection signal S1 3 of the voltage level of the boosted power supply is increased. When the detection signal S1 3 is caught in the control circuit 14, the oscillation drive circuit 12 is reduced and supplied to the piezoelectric element 11 as the voltage level of the detection signal S1 3 from the detection circuit 13 becomes the target voltage level. Control of electricity. By repeating this control, the detection signal S1 3

423967 4 Explanation (7) * "-The voltage level becomes the target voltage level, and the supply piezoelectric force becomes the target supply power (time t14). For two, if the impedance of the piezoelectric element 11 according to Example 1 changes according to the skin's contact state with the skin contact surface of the metal part 10, the power change of the piezoelectric element 11 is also corrected due to the change of the supplied power ^ The target power supply can make the acoustic output from the metal portion 10 approximately constant. Therefore, a suitable massage effect can be obtained, and a fixed acoustic output can be obtained.

It has a stable massage effect, and can prevent various problems caused by unwanted changes in audio output. U In addition, "in the first embodiment, in the structure," the detection circuit 13 is used to detect the power supplied to the piezoelectric element 11, and the detection result is output according to the change in the supplied power. "No. 0" is not limited to this. In terms of structure, after detecting the voltage or current of the dust electric component 11, a detection signal according to the change is output on the detection result. ^ 'Fig. 5 is a schematic circuit configuration diagram of an ultrasonic cosmetic device according to the second embodiment of the present invention' Fig. 6 is a control explanatory diagram of the control circuit shown in Fig. 5 and the second embodiment will be described using these drawings. As shown in FIG. 5, this ultrasonic beauty device is provided with a control circuit 2 at a point different from the first embodiment except that it includes a dust electric element 11, an oscillation drive circuit 12, and a detection circuit 13 as in the first embodiment. 4. The control circuit 24 has a plurality of predetermined output levels for the piezoelectric element u. The oscillation level is changed as the output level of the piezoelectric element 11 becomes a predetermined output level according to the detection signal S1 3 from the detection circuit 13. Output of the driving circuit 12. That is, the 'control circuit 24 has a plurality of types. In the second embodiment, as shown in FIG. 6

Page 10 w 5. Description of the invention (8) The example has two reference values Refl, Ref2 (Ref1 < Ref2), and controls the drive circuit 12 'if the voltage level of the detection signal S13 is the same as the reference value Ren and If it is lower than the reference value ref 2, the power supplied to the piezoelectric element 11 is reduced as the voltage level from the detection circuit 13 becomes the control value Tar 1. If the voltage level of the detection signal S13 is greater than the reference value Re f 2 High 'reduces the power supplied to the piezoelectric element 11 as the voltage level from the detection circuit 1 3 becomes the control value Tar2 (< Tar 1). However, the reference value Ref1 is set to a higher voltage level than the detection signal S1 3 in the normal contact state. Next, the circuit operation of the second embodiment will be described. In the normal contact state, as shown in the example of FIG. 6 'the voltage level of the bias signal S13 obtained from the power supplied to the piezoelectric element 丨 丨 is two kinds of reference values Ref. 1. Ref 2 is low, and the state in which the self-oscillation driving circuit 12 supplies power to the piezoelectric element 11 is always maintained. Then, the skin-to-skin contact state of the metal part 10 becomes weaker. When the impedance value of the piezoelectric element 11 becomes slightly smaller and becomes a non-contact state where the power supplied to the piezoelectric element 11 becomes larger, the detection signal The voltage level of S1 3 becomes higher than the reference value Ref1 and lower than the reference value Ref2 (at time t21). If the voltage level from the SZ3 k3 S1 3. becomes the control value ar 1, the supply voltage is reduced. Control of the power of the element Π. By repeating this control, the voltage level from the detection signal S13 becomes the control value Tarl (time t22), and the power supplied to the piezoelectric element 11 is adjusted to the range of the power supplied in the normal contact state. Then, when it is in a non-contact state, the impedance value of the piezoelectric element 11 becomes smaller. As the power supplied to the piezoelectric element 11 becomes larger, the voltage level of the detection signal s 13 becomes higher than the reference value Ref 2 (time t23), such as from the investigation

Page U 4 23 96 7 V. Description of the invention (9) The voltage level of the test signal S13 becomes the control value Tar2 to reduce the power supplied to the power element 11. By repeating this control, the voltage level from the detection signal 51 3 becomes the control value Tar2 (time t24), and the power supplied to the piezoelectric element 11 is adjusted to the range of the power supplied in the normal contact state. As described above, according to the second embodiment, the power supply to the piezoelectric element 11 can be adjusted to be within the range of the power supply in the normal contact state when it is in the half-contact state, and it can be supplied to the piezoelectric element when it is in the non-contact state.丨 丨 The electric power adjusted to the range of the power supply in the normal contact state is smaller than that in the case of the half-contact state. The acoustic output is based on the normal contact state set in the same manner as in the conventional example. The contact state and the non-contact state are appropriately changed for each skin contact state. Therefore, a suitable massage effect can be obtained, that is, a massage effect that changes appropriately (as desired) according to the state of skin contact can be obtained, and various problems caused by unwanted changes in acoustic output can be prevented. Fig. 7 is a schematic circuit configuration diagram of an ultrasonic cosmetic device according to the third embodiment of the present invention. Fig. 8 is an operation waveform diagram of each circuit shown in Fig. 7. Using these drawings, the third embodiment will be described below. As shown in FIG. 7, this ultrasonic beauty device is provided with a piezoelectric element 11 in the same manner as in the first embodiment. At a point different from the first embodiment, the ultrasonic beauty device is provided with a heat driving circuit 32, a detection circuit 33, and a control circuit 34. . The oscillating driving circuit 32 is a high-frequency power supply for the piezoelectric element 11 to cause the piezoelectric element 11 to generate ultrasonic vibration. In addition to the oscillator 121 as in the first embodiment, the oscillation driving circuit 32 also includes a driving circuit 3 22. In the above, the resistors R321 and R322 and the FETs Q321 and Q322 constituting a push-pull circuit are used.

Page 12 423967, V. Description of the invention (After the signal amplified by the vibrator 121 is amplified and supplied to the piezoelectric element 11 as a drive signal S32. The ballast test circuit 33 is provided with a current detection circuit 331 composed of a current transformer T33i and a resistor R331, and the current flowing through the piezoelectric element 11 is related to the voltage detection and the drive signal S3 2 and a diode]) 331, The capacitor C33 1 and the resistor R332 form a ', and after filtering the high-frequency components from the voltage detected by the current detection circuit 331, the level is controlled according to the voltage of the current level to the piezoelectric element 丨 丨 as the detection signal S33. An envelope detection circuit 332 output from the circuit 34. In addition, a structure with a low resistance (for example, 0.1 Ω) may be used instead of the current detection circuit 331. The control circuit 34 uses the NOT circuit 341, the resistor R341, the transistor Q341, the inductor L341, the capacitor C341, and the electrolytic capacitor C342 to constitute 'adjust the level of the driving signal S32 according to the detection signal S33 from the detection circuit 33' to adjust the level according to The voltage of the voltage change of the detection signal S 3 3 is output to the drive circuit 322 as the control k number 334. Therefore, the higher the voltage level of the detection signal $ 33 is, the lower the voltage level of the control signal S34 becomes. The power supplied by S32 to the piezoelectric element 11 becomes smaller, and the lower the voltage level of the detection signal S33 and the higher the voltage level of the control signal S34, the greater the power supplied to the piezoelectric element 11 by the driving signal S32 . However, when the power supplied to the piezoelectric element 11 by the control circuit 34 becomes the target power supply in construction, the voltage level of the control signal S34 as an output is kept balanced. Secondly, "the circuit operation of the third embodiment" is described in a non-contact state. As shown in the example of Fig. 8, the power supplied to the piezoelectric element is greater than the target power supply. The voltage (output voltage of the current detection circuit) is used to detect the bit. Quasi

Page 13 4 2 3 9 6 7 V. Description of the invention (π) The current to the power (the detection current of the current detection circuit), the detected voltage is removed as the detection signal S33 (envelope) The output voltage of the line detection circuit) is output from the detection circuit 33 to the control circuit 34. Then, the voltage level is output from the control circuit 34 to the driving circuit 32 2 according to the control signal S34 that the detection signal S33 goes low as the power supply voltage of the driving circuit 322. As a result, the voltage level of the driving signal S3 2 becomes low, and the power supplied to the piezoelectric element 丨 丨 becomes small. By repeating this circuit operation, the power supplied to the piezoelectric element U is adjusted to the target power supply (time t31). Then, when the skin contact surface of the metal part 10 comes into contact with the muscles, the impedance value of the piezoelectric element 11 becomes larger. The power supplied to the piezoelectric element becomes smaller (time t32). Current of electricity 'The detected voltage is removed as a detection signal S33 after removing high frequency components.' The detection circuit 33 outputs a control signal to the control circuit 34. »Then, the voltage ° level is a control signal that goes high according to the detection signal S33. In S34, the voltage level of the 'result' driving signal S3 2 is output from the control circuit 34 to the driving circuit 3 22, and the power supplied to the piezoelectric element 11 is increased. By repeating this circuit operation, the power supplied to the piezoelectric element 11 is adjusted to the target power supply (time tgg). Above, if according to the embodiment 3, in addition to having the same effect as the embodiment 丨, it can detect the changes (voltage, current, power) caused by the impedance change of the piezoelectric element 丨 丨 with high accuracy. For example, in the structure of the oscillating circuit, there are a power source, a driving circuit, and a piezoelectric element. When the power source can output 7 ?, the driving power = can be input, and the piezoelectric it can rotate, the knowledge from the power source to the driving circuit is 2W, efficiency is Π%. In addition, the loss from the driving circuit to the piezoelectric element is 1W, and the efficiency is 71%. ^ If the error of the respective efficiency is ± 5%,

423 967 V. Description of the invention (12) The detection on the piezoelectric element side of the drive circuit can be detected with a measurement error of 5%, but when it is on the power side of the drive circuit, not only the error becomes 25%, but also the drive The losses of the circuits overlap and the detection accuracy decreases. That is, the detection on the piezoelectric element side of the driving circuit can be performed with high accuracy. Fig. 9 is a schematic circuit configuration diagram of the ultrasonic beauty device according to the fourth embodiment of the present invention, and Fig. 10 is an operation waveform diagram of each circuit shown in Fig. 9. Using these drawings, the fourth embodiment will be described below. — This ultrasonic beauty device is shown in Figure 9, except for the embodiment! In addition to the piezoelectric element 11, the oscillation driving circuit 42, the detection circuit 43, and the control circuit 44 are provided at different points from the embodiment. However, these vibratory driving circuit 42, detection circuit 43, and control circuit 44 are structured as follows (refer to FIG. 3), and operate in the range of the resonance frequency to the anti-resonance frequency (resistance becomes linear range). The surplus driving circuit 42 supplies high-frequency power to the piezoelectric element for generating piezoelectric vibration of the piezoelectric element 11 except that it has the driving signal S32 for supplying the piezoelectric element 11 as its high-frequency power as in the third embodiment. In addition to the driving circuit 322, an oscillator 421 is provided. In a specific circuit example, it is composed of a resistor R421, a capacitor C421, a variable capacitor diode D421, a resistor R3 422, and a two-input NAND422 constituting a VCO, and generates an ultrasonic frequency signal. Back 'to the input and output of the driving circuit 322. ° The pick-up circuit 43 uses the resistor R431 provided on the input side of the drive circuit 322, specifically, the resistor R431 provided on the power supply path to the drive circuit 322 to 'detect and drive the power to the drive circuit 322 related to the drive signal S32. , As the detection signal S43 (voltage drop of resistor R431) "423967 ^

The control circuit 44 includes the same inductor L34i, each capacitor C341, and an electrolytic capacitor as those of the third embodiment. "In addition, it also has a differential amplifier 4 ^ 1. And resistors R44 and R444. The level changes according to the detection L number S43 from the detection circuit 43 as the control signal S44, and the second is input to the oscillator, explaining the implementation The circuit of Example 4 operates in a non-contact state. As shown in the example of Figure 10, the power supplied to the piezo element is greater than the target power supply. The resistance R431 generates a voltage drop according to the power supply. Measured signal S43 'Self-detection circuit 43 is taken into control circuit 44. The voltage level of control signal S44 from control circuit 44 to oscillator 421 becomes higher.' The output frequency of oscillator 421 becomes higher β. The impedance of the electric element ^ becomes higher (refer to the linear range of FIG. 3), and the electric power supplied to the piezoelectric element ^ becomes smaller. By repeating this circuit operation, the electric power supplied to the piezoelectric element 11 is adjusted to the target electric power supply (time t41). Then, when the skin contact surface of the metal part 10 is in contact with the muscles, the impedance value of the piezoelectric element 11 becomes larger, and the power supplied to the piezoelectric element 1 becomes smaller (at time t42). Drop down As the detection signal S43, the self-detection circuit 43 is taken into the control circuit 44. Therefore, the voltage level of the control signal S4 4 from the control circuit 44 to the oscillator 421 becomes low, and the output frequency of the oscillator 421 becomes low. As a result, the impedance of the piezoelectric element 11 becomes low, and the power supplied to the piezoelectric element 11 becomes large. By repeating this circuit operation, the power supplied to the piezoelectric element 11 is adjusted to the target supply power (time t43) β. The circle 3 explains more specifically, for example, when the piezoelectric element 11 is applied to the piezoelectric element 11 at a frequency of 100K, and a voltage of 20V in a contact state.

Page 16 423967 V. Description of the invention (14) In the non-contact state, the impedance of the piezoelectric element 11 becomes 2 Ω, and the power supplied to the piezoelectric element 11 becomes 200 ff, which is greater than the target supply power. In this case, if the oscillation frequency is changed to 1 008 KHZ, the impedance of the piezoelectric element 11 becomes 15 Ω, and the power supplied to the piezoelectric element u can be reduced to 27 W. Then, the contact state is changed. The impedance of the piezoelectric element 11 becomes 22 Ω, and when the power supplied to the piezoelectric element 丨 丨 becomes less than 18 ft of the target power supply, if the oscillation frequency is changed to 100K, the impedance of the piezoelectric element 11 When it becomes 15 Ω, the power supplied to the piezoelectric element 11 can be increased to 27 W, which is the target supply power. As described above, according to the embodiment 4 ', except that the same effect as that of the embodiment 1 can be achieved, it is possible to detect the changes (voltage, current, power) caused by the impedance change of the piezoelectric element 11 with high accuracy. Compared with the third embodiment, although the factor of the efficiency of the additional oscillator circuit is more stable than that of the high-frequency voltage on the piezoelectric element side of the third embodiment, the detection is more stable. The detection circuit 43 may be an A / D converter, and the oscillator 421 may be a PLL or a structure controlled by a single crystal microprocessor. Fig. Π is a schematic circuit configuration diagram showing an ultrasonic cosmetic device according to Embodiment 5 of the present invention, and Fig. 12 is an operation waveform diagram of each circuit shown in Fig. 11, and Embodiment 5 will be described using these drawings as follows. As shown in FIG. 11, this ultrasonic cosmetic device is provided with an oscillating drive circuit 52 at a point different from that of the third embodiment except that the piezoelectric element 11, the detection circuit 33, and the control circuit 34 are provided as in the third embodiment. The vibrating surplus driving circuit 52 is provided with a driving circuit 322 as in the third embodiment, and a detection signal S33 input from the detecting circuit 33. The oscillator 421 is also equipped with the oscillator 421 as in the fourth embodiment.

Page 17 4 23 96 7 ^ V. Description of the invention (15)-Next, the circuit operation of the embodiment 5 will be described. In the non-contact state, as shown in the example of FIG. 12, the power supplied to the piezoelectric element is greater than the target. “Supply power” is based on the current of the supplied power at the voltage detection level, and the detected power is used as the detection signal s 3 3 after removing the frequency components, from the detection circuit 3 3 to the control circuit 34 and the oscillator 521 Both outputs. As a result, the power supplied to the piezoelectric element 11 becomes small. By repeating this circuit operation, the power supplied to the piezoelectric element 11 is adjusted to the target supply power (time t51). Then, when the contact state is reached, the power supplied to the piezoelectric element 11 becomes smaller (time 15 2). At the voltage detection level, the current of the supplied power is used. The signal 533 is output from the detection circuit 33 to both the control circuit 34 and the oscillator 521. As a result, the power supplied to the piezoelectric 7L element 11 becomes large. By repeating this circuit operation, the power supplied to the piezoelectric element 11 is adjusted to the target power supply (time t53) β. Next, it will be described in more detail using FIG. 3, for example, in a contact state, at a frequency of 100K, and a voltage of 20V When the piezoelectric element becomes non-contact, the impedance of the piezoelectric element U becomes 2Ω, and the power supplied to the piezoelectric element 11 becomes 200W, which is greater than the target power supply. In this case, if the vibration frequency is changed to 005KΗζ, the impedance of the piezoelectric element 11 becomes 6Ω, and when the voltage of the control signal S34 is reduced to about 13V, the power supplied to the piezoelectric element Η can be reduced to 28W. Then, it becomes a contact state, and the impedance of the piezoelectric element η becomes 20 Ω. “When the power supplied to the piezoelectric element ^ becomes less than 8 W of the target supplied power”. If the oscillation frequency is changed to 1000 KΗζ, the piezoelectric element 11 The impedance becomes 15Ω, and the power supplied to the piezoelectric element 11 can be increased to 28W which is the target supply power.

Page 18 V. Description of the invention (16) The above ‘if according to Embodiment 5’ may have the same effect as in Example 3. In addition, for example, by controlling the driving circuit 322 by a control method using a voltage-fixed current variation method or a current-fixed voltage variation method, a simple circuit can be used to supply power in accordance with a change in impedance when the oscillation frequency is fixed. Fig. 13 is a schematic circuit configuration of an ultrasonic cosmetic device according to a sixth embodiment of the present invention. Fig. 14 is an operation waveform diagram of each circuit shown in Fig. 13, and the sixth embodiment will be described using these drawings. As shown in FIG. 13, this ultrasonic cosmetic device is provided with an oscillating driving circuit 62 at a different point from that of the fourth embodiment except that the piezoelectric element 11, the detection circuit 43 and the control circuit 44 are provided as in the fourth embodiment. However, a DC power source DC1 is connected between the control circuit 44 between the resistor R442 and the ground. In addition to the oscillator 121 and the drive circuit 322, the oscillation drive circuit 62 includes an oscillator 623 and an AND circuit 624 in addition to the oscillator 421 in the same way as in the first embodiment. In addition to this, there is a circuit structure of an VCD including an electric resistance R621, a capacitor C6 21 provided on the output side of the VCO, and a monostable multivibrator 625. The control signal S44 from the control circuit 44 is used for Duty control to output the Duty. Compared to a rectangular wave (hopefully the frequency is about 50Hz). The two output signals of the oscillators 121 and 623 are input to the drive circuit 322 via a two-input AND624. However, the vibrator 121 continuously oscillates structurally at a frequency of about ijjhz. Here, an outline operation of the oscillation driving circuit 62 will be described. The oscillator 121 continuously oscillates and outputs a signal having an ultrasonic oscillation frequency of about 1 MHz. And, at the oscillator 623, the VCO outputs Duty ratio than the rectangular wave according to the control signal S44 (the VCO output waveform of the oscillator 623 in FIG. 14). These oscillators 121 and

Page 19 4 23 96 7 ^ V. Description of the invention (17) As far as the output number of Is 6 2 3 is overlapped in the AND circuit 624, the drive circuit 322 is turned on (the input of the drive circuit of FIG. 14). In this operation, the power supplied to the piezoelectric element 11 increases, the voltage drop across the resistor R431 increases, and the voltage of the control signal S44 increases, and the oscillation frequency of the oscillator 623 decreases. Since the monostable multivibrator 625 outputs a pulse wave only at a fixed time, Duty becomes smaller. As a result, the output time of the oscillation drive circuit 62 to the piezoelectric element u becomes shorter, and the average supply power is reduced. Therefore, by performing the Duty control ', the average power supplied to the piezoelectric element 11 becomes a constant value. Next, 'the circuit operation of the sixth embodiment will be described. In the non-contact state, since the electric power supplied to the piezoelectric element 11 is greater than the target electric power, the voltage of the control signal S44 rises.' The output time of the vibration driving circuit 62 to the piezoelectric element 11 is shortened, and the average power supply is reduced. By repeating this circuit operation ', the power supplied to the piezoelectric element 丨 丨 is adjusted to the target power supply (time 16 1). Then, "when the contact state is reached", since the power supplied to the grinding element becomes smaller (time t62), the voltage of the control signal S44 decreases, and the oscillation frequency of the oscillator 623 becomes high. The longer the output time of the oscillation drive circuit 62 to the piezoelectric element 11 ', the higher the average supply power. By repeating this circuit operation, the power supplied to the piezoelectric το member 11 is adjusted to the target power supply (time ΐ63). The above 'if according to Embodiment 6, except that it can have the same effect as in Embodiment 4, for example, by using a substantially fixed voltage and current according to the change in the impedance of the piezoelectric element caused by the change in the skin's contact state, the circuit is designed. It becomes easy, and the stability of the circuit in use is improved. In addition, by controlling the intermittent vibration frequency, the power supplied to the piezoelectric element can be made variable. Nssr page 20 4 23 96 7 θ V. Description of the invention (18) By controlling the target power supply, the power can always be supplied. Do not exceed the appropriate power for the target power supply. Fig. 15 is a schematic circuit configuration diagram of an ultrasonic beauty device according to a seventh embodiment of the present invention, and Fig. 16 is an operation waveform diagram of each circuit shown in Fig. 15. Using these drawings, the seventh embodiment will be described below. However, FIG. 16 (a) is an operation waveform diagram in the case of the third embodiment. FIG. 16 (b) is an operation waveform diagram in the case of the seventh embodiment. In addition, the SW shown in FIG. 16 is a switch (not shown) for starting ultrasonic oscillation. As shown in FIG. 15, this ultrasonic beauty device is provided with a control circuit 74 at a point different from the third embodiment except that the piezoelectric device 11 and the oscillation drive circuit 32 are provided in the same manner as in the third embodiment. 74 In addition to the circuit structure of the control circuit 34 of the embodiment 3, it also includes a transistor q741, resistors R741, and R742 constituting a high-voltage superimposed circuit, and a switch S741 in conjunction with a switch that starts ultrasonic oscillation. In addition to the above actions, when the switch that starts the ultrasonic vibration is turned on, the switch S741 and the turn on are turned on at the same time (instantaneously) at the same time, and the action of overlapping the high voltage (such as 15 V) with the debt measurement signal S33 is performed . Here, the reason for providing this high-voltage superimposition circuit will be explained. In the non-contact state, when the switch for starting the ultrasonic oscillation is turned on, the detection signal S33 output from the wheel of the pick-up circuit 33 becomes the set range because the power supply to the magic electric element 11 is the smallest after the turn-on. Approximately minimum. Therefore, the control for increasing the power supplied to the piezoelectric element 11 according to the detection signal S33 having the minimum value is performed as described above, and the supplied power exceeds the target supplied power as shown by the waveform after sw⑽ as shown in FIG. 16 (a). . Exceeding target supply power like this

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It is not good as shown above. Therefore, in Example 7, the high voltage house overlap circuit is used to make the high voltage and the detection signal S33 from the debt test circuit 3 3 overlap with the conduction of the switch that starts the ultrasonic oscillation. . Therefore, the voltage of the detection signal S33 acquired by the control circuit 74 < NOT circuit 341 becomes the maximum value of the approximately 15 setting range in an instant), as shown in the waveform after SW 0N shown in FIG. 16 (b) The control for reducing the power supplied to the piezoelectric element 11 is generally performed. As a result, as shown in Fig. 16 (a), it is possible to prevent a state in which the target supply power is exceeded. In addition, regarding the subsequent operation, the high voltage overlapped with the detection signal S33 of the detection circuit 33. The output voltage of the overlapping circuit becomes zero ', and the circuit operation is the same as that in the third embodiment. As mentioned above, according to the embodiment 7, in addition to having the same effect as the embodiment 3, it is possible to prevent the bad state exceeding the target power supply from occurring after the switch that starts the ultrasonic oscillation is turned on. In addition, When the switch of the sonic oscillation is turned on, the oscillator 6 2 3 is constituted as if the oscillation starts near the anti-resonance frequency, and the same effect can be obtained. Further, if the oscillation drive circuit 62 is configured such that the duty is reduced, the same effect can be obtained. Fig. 17 is a schematic circuit configuration diagram of an ultrasonic cosmetic device according to the eighth embodiment of the present invention, and Fig. 18 is an operation waveform diagram of each circuit shown in Fig. 17, and the eighth embodiment will be described using these drawings. As shown in FIG. 17, this ultrasonic cosmetic device is provided with a control circuit 8 4 at a different point from that of the fourth embodiment except that it includes a piezoelectric element Π, an oscillating drive circuit 42 and a detection circuit 43 as in the fourth embodiment. .

Page 22 423967 乂 Description of the invention (20) In addition to the electrical structure of the control circuit 44 of the fourth embodiment, the control circuit 84 includes capacitors C841, C842, resistors R84, R848, and comparator 841 constituting a detection overlap circuit. '842 and transistor Q841, in addition to performing the same operation as the control circuit 4 4, it also detects the positive and negative changes of the control signal S44. When the change of the control signal S44 is greater than the reference levels of the comparators 841 and 842 Transistor Q841 becomes conductive, overlapping the high voltage and control signal S44 ', and when the change of control signal S44 is less than the reference level of comparators 841, 842, transistor Q8 4 becomes non-conductive, and stops the high voltage and control signal S44 overlaps. Here, the reason for providing the high-voltage overlap circuit will be explained. In use, when the metal part 10 is brought into close contact with or separated from the skin, the rapid change in the impedance of the piezoelectric element U is as described above, but when the metal part 10 and the muscle are closely connected, the moving probe 1 'also has a piezoelectric element. The situation where the impedance changes rapidly. Due to this rapid change in impedance, it is not possible to exceed the allowable power (= target supply power + α) multiple times. Therefore, in Embodiment 8, the detection overlap circuit is provided, and when the power supplied to the piezoelectric element 11 exceeds the target supply power, it is immediately controlled so that the power supplied to the piezoelectric element 11 is within the target supply power range (for comparison, see FIG. 10 and FIG. 18 are waveforms of power supplied to the piezoelectric element). Next, the operation of the eighth embodiment will be briefly described, and the piezoelectric element Π is supplied with electric power in accordance with the impedance value at the same time that the ultrasonic wave starts to be output. When a rapid change in the power is detected by the resistor R43 1, the control signal S44 becomes a signal indicating a rapid voltage change in accordance with the detection signal S43. At this time, the capacitor C841 and the resistor R842C are used to extract the change from the control signal S44.

Page 23 V. Description of the invention (21) Quantities ′ This variation is compared using the comparators 841 and 842 and the reference level. In this case, the amount of change exceeds the reference level (in other words, because the reference level is set lower than the amount of change in this case), the transistor Q841 becomes conductive. Therefore, the control signal S44 and the high voltage overlap and become approximately the maximum value, and the vibration frequency of the oscillator 421 becomes near the anti-resonance frequency. In addition, the control signal S44 changes to indicate a rapid decrease, and the oscillation frequency is controlled in the same manner as described above. This control of the signal voltage of the oscillator 421 is ended by the discharge of the capacitor C842. The above "if according to Example 8 ', except that it can have the same effect as in Example 4,' it can quickly eliminate the bad state that exceeds the target power supply that will occur during use." In addition, the detection overlap circuit can also be applied. In the control circuit 34, the same effect can be obtained by using Duty ratio control. [Effects of the Invention] From the above, according to the invention such as the scope of the patent application, the invention includes a probe having a metal part with one side serving as a muscle-wide contact surface and a piezoelectric element joined to the other side of the metal part. The piezoelectric element is used for an oscillating driving circuit for the piezoelectric element to generate high-frequency power of ultrasonic vibration, a detection circuit for detecting a change in the output of the piezoelectric element, and according to the detection result, for example, for the piezoelectric element. The control circuit that controls the output of the oscillating driving circuit as if the output becomes a constant value can thus make the acoustic output from the metal part a constant value. As a result, a comfortable massage effect can be obtained. An invention according to item 2 of the scope of patent application, including

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Mi 'V. Description of the invention (22) The probe for the metal part of the skin-contacting surface and the electric element connected to the other side of the metal part, and the piezoelectric element used to cause the piezoelectric element to generate ultrasonic vibration. High-frequency power oscillation driving circuit 'A detection circuit that detects the output change of the piezoelectric element, and if the output level of the piezoelectric element becomes a predetermined one selected from a plurality of predetermined output levels according to the detection result The output control level of the oscillation drive circuit is changed as the output level. Therefore, for example, if a plurality of predetermined output levels are set, a comfortable massage effect can be obtained, that is, a massage effect appropriately changed according to the skin contact state. According to the invention such as the scope of the patent application, the detection circuit is provided on the output side of the oscillating circuit to the piezoelectric element. It can detect the changes (voltage, current, power) caused by the impedance change of the piezoelectric element with high accuracy. According to the invention such as the scope of the patent application, the detection circuit is provided on the input side of the oscillating drive circuit. The frequency is lower than the detection of the output of the piezoelectric element. As a result, detection can be performed more stably. According to the invention such as the scope of patent application No. 5, in the ultrasound beauty device such as the scope of patent application No. 1 or 2, since the control circuit controls the power supplied from the oscillation drive circuit to the piezoelectric element, it can be simplified Circuit construction. According to the invention such as the scope of patent application No. 6, in the ultrasonic beauty device such as the scope of patent application No. 1 or 2, since the control circuit controls the oscillation frequency of the vibratory driving circuit, the circuit design becomes simpler , And the stability of the circuit in use is improved.

Page 25 4 2 3 9 6 7 V. Explanation of the invention (23) According to the invention in the scope of patent application No. 7, apply to gg m. / Fang Wu is, because the control circuit controls the duty of the oscillation drive circuit, it can supply appropriate power. According to the invention as claimed in the scope of patent application No. 8, in the ultrasonic beauty device as described in the scope of patent application No. 5, because the control circuit starts to supply power to the piezoelectric element, the oscillation drive circuit is ordered to be smaller than the target power. The control of the start of power supply can prevent the unfavorable state caused by excessive power supply from occurring when the power supply starts. According to the invention as claimed in item 9 of the scope of patent application, for the ultrasonic beauty device as described in item 5 of the scope of patent application, because the control circuit changes the skin contact state of the skin contact surface, the oscillation drive circuit is ordered Starting from a supply of electric power smaller than the target electric power, it is possible to prevent a bad state caused by an excessive electric power supply that occurs when the skin contact state changes.

Page 26

4 2 3 96 7 Brief description of the circle type Fig. 1 is a schematic circuit diagram of an ultrasonic cosmetic device according to the first embodiment of the present invention. Fig. 2 is a sectional view showing a probe and a body. Fig. 3 is an impedance characteristic diagram of the piezoelectric element shown in circle 1 near the resonance frequency. FIG. 4 is a control explanatory diagram of the control circuit shown in FIG. 1. FIG. Fig. 5 is a schematic circuit configuration diagram of an ultrasonic cosmetic device according to a second embodiment of the present invention. FIG. 6 is a control explanatory diagram of the control circuit shown in FIG. 5. FIG. Fig. 7 is a schematic circuit diagram of an ultrasonic cosmetic device according to a third embodiment of the present invention. FIG. 8 is an operation waveform diagram of each circuit shown in FIG. 7. Fig. 9 is a schematic circuit configuration diagram of an ultrasonic cosmetic device according to a fourth embodiment of the present invention. FIG. 10 is an operation waveform diagram of each circuit shown in FIG. 9. Fig. 11 is a schematic circuit diagram showing an ultrasonic beauty device according to a fifth embodiment of the present invention. Fig. 12 is an operation waveform diagram of each circuit shown in Fig. 11. Fig. 13 is a schematic circuit configuration diagram of an ultrasonic cosmetic device according to a sixth embodiment of the present invention. FIG. 14 is an operation waveform diagram of each circuit shown in FIG. 13. Fig. 15 is a schematic circuit configuration diagram of an ultrasonic cosmetic device according to a seventh embodiment of the present invention. FIG. 16 is an operation waveform diagram of each circuit shown in FIG. 15.

Page 27 423967 ^ Brief description of drawings Fig. 17 is a schematic circuit configuration diagram of an ultrasonic beauty device according to Embodiment 8 of the present invention. FIG. 18 is an operation waveform diagram of each circuit shown in FIG. 17. [Description of symbols] 1 Probe 2 Body 10 Metal part 11 Piezo element 12, 32, 42 '52, 62 Oscillation drive circuit 13 '33 '43 Detection circuit 14, 24, 34, 44, 74, 84 Control circuit

Page 28

Claims (1)

* 4 A 2 3 9 6 7 VI. Application scope of patent] · An ultrasonic beauty device, including: Subordinate part: Ϊ 'has a metal part on one side which becomes the skin contact surface, and a piezoelectric part which is joined to the other side of the metal part Element: a circuit that supplies ultrasonic vibration to the piezoelectric element < A frequency power to the piezoelectric element; a detection circuit that detects a change in the output of the piezoelectric element; and a batch of fabricated circuits according to The detection result implements the output control of the oscillation driving circuit to make the output to the piezoelectric element a constant value. 2. An ultrasonic beauty device, comprising: a probe having a metal portion on one side which becomes a muscle-wide contact surface and a piezoelectric element joined to the other side of the Jin Shao Shao; an oscillating drive circuit which is used to make the piezoelectric element Generates ultrasonic vibration rain frequency power to the piezoelectric element; a detection circuit detects the output change of the piezoelectric element; and a control circuit implements the output change of the oscillation drive circuit to make the output level for the electric 7C component It becomes a predetermined output level selected from a plurality of predetermined output bit levels according to the detection result. 3. = If the ultrasonic beauty device of item 1 or 2 of the scope of patent application, the Russian test circuit is set on the output side of the oscillating drive circuit to the piezoelectric element. 4 · = If the ultrasonic beauty device of item 1 or item 2 of the scope of patent application, the detection circuit is provided on the input side of the oscillation driving circuit. 5 ’For example, the ultrasonic cosmetic device of the first or the second item of the patent application’ and the middle ’are controlled by the control circuit to be supplied to the piezoelectric element by the oscillation driving circuit. Page 29 .1. 〇, y: f patent scope " " " " '--------- pieces of electricity. 6. For the Ultrasonic Office of the 1st or 2nd in the scope of the patent application, where 'the control circuit controls the vibrating frequency of the vibrator driving circuit ^ each device' 7. If the 1st or 2nd in the scope of the patent application The ultrasonic beauty device, wherein the control circuit controls the duty of the oscillation driving circuit. 8. The ultrasonic cosmetic device according to item 5 of the scope of patent application, wherein the control circuit controls the oscillation drive circuit to start supplying power smaller than the target power when starting to supply power to the piezoelectric element. 9. For the ultrasonic beauty device according to item 5 of the scope of the patent application, where the control circuit changes the skin contact state to the skin contact surface, the oscillation drive circuit is configured to reduce the power supply to the piezoelectric element from less than the target. Control of the power of electricity. ', Page 30