TWI477298B - Beauty equipment - Google Patents

Description

Beauty equipment

The present invention relates to a beauty appliance.

In the device used for increasing the amount of penetration of the cosmetic component contained in the cosmetic product, for example, in the patent document 1, the electrode portion which outputs a current to the affected part is disclosed, and a pulse-shaped current flows from the electrode portion. Ionizer. The ion introducer is a current that is energized from the electrode portion toward the skin, and the charge-containing cosmetic component is moved toward the inside of the skin. Thereby, the amount of penetration of the cosmetic ingredients into the skin is increased, so that the cosmetic effect is further improved.

Further, Patent Document 2 discloses an ultrasonic vibrator in which an ultrasonic vibrator is provided inside a metal probe to stop the operation of the ultrasonic vibrator when the probe is not in contact with the skin. The ultrasonic cosmetic device is a method in which the probe is brought into contact with a skin coated with a cosmetic component, and the amount of penetration of the cosmetic component is increased by imparting ultrasonic vibration.

Further, the ultrasonic vibrator controls the operation of the ultrasonic vibrator by detecting the electrostatic capacitance changed according to the contact state of the probe and the skin, and reduces the power consumption accompanying the driving of the ultrasonic vibrator. By.

[Advanced technical literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2005-237545

[Patent Document 2] Japanese Patent Laid-Open Publication No. 2001-95875

However, the iontophoresis device of Patent Document 1 is an operation state and a stop state of a main operation that constitutes a beauty effect by switching an operation switch. Therefore, there is a need to operate the switch when using the beauty instrument and after use, and the convenience for the user is low.

On the other hand, the ultrasonic cosmetic device described in Patent Document 2 is an operation switch for which the ultrasonic vibrator does not operate when the probe is not in contact with the skin, and does not need to switch between the operating state and the stopped state of the main operation. However, in the above-described ultrasonic beauty device, the electrostatic capacitance detecting circuit that detects the contact state of the probe with the skin is constantly energized. Therefore, even in the standby state in which the ultrasonic vibrator is not actuated, a relatively large amount of electric power is consumed.

The present invention has been made in view of the above-described background, and provides a beauty appliance which can reduce the power consumption in a standby state and can be used without operating an operation switch.

An aspect of the invention is a cosmetic device comprising: a first electrode and a second electrode that are disposed apart from each other; and a control unit that can apply a voltage between the first electrode and the second electrode, wherein the control unit The beauty device is configured to perform a main operation in accordance with a state in which the first electrode and the second electrode are in contact with a human body, and is characterized in that a pulse voltage is applied between the first electrode and the second electrode to measure the control. a means for determining an electrical characteristic value in the portion; determining, based on the electrical characteristic value, whether the first electrode and the second electrode are electrically connected to each other via a human body; and determining that the first electrode and the second electrode are In the above electrical conduction state, the means for starting the above main operation (request 1).

The beauty device includes means for applying a pulse voltage between the first electrode and the second electrode to measure an electrical characteristic value in the control unit. With this, in the standby state of the beauty instrument, that is, when the main operation is stopped, the power consumed when the measurement of the electrical characteristic value is performed can be reduced as compared with the case where the constant power flow continues to flow. .

Further, the beauty device has means for starting the main operation when it is determined that the first electrode and the second electrode are in the electrically conductive state. Therefore, the beauty device does not need to perform another switching operation, and both the first electrode and the second electrode can be connected to the human body. The above-mentioned main action is started as a trigger. As a result, it is not necessary to provide the above-described beauty instrument in which the above-described main operation and stop switching are performed in the beauty instrument. Moreover, since the user does not have to perform the switching operation, the above-described beauty instrument becomes easy for the user. Moreover, in the above-mentioned beauty instrument, it is not necessary to arrange a switch, and the effect of reducing the number of parts can be obtained.

As described above, according to the above aspect, a beauty appliance which can reduce the power consumption in the standby state and can be used without a switching operation is provided.

1‧‧‧Beauty equipment

11‧‧‧1st electrode

12‧‧‧2nd electrode

3‧‧‧Control Department

30‧‧‧Control microcomputer

300‧‧‧ADC

301‧‧‧ Computing Department

302‧‧‧Signal Output

303‧‧‧Delay timer

Fig. 1 is a block diagram of a control unit of the cosmetic device in the embodiment.

Fig. 2 is a flow chart for explaining the operation of the beauty instrument in the embodiment.

Fig. 3 is a flow chart for explaining the skin detecting function in the main operation in the embodiment.

Fig. 4 is a waveform diagram showing a potential difference generated between both ends of the resistor in step S5 when the cosmetic device is in an electrically conductive state in the embodiment.

Fig. 5 is a waveform diagram of a current flowing on human skin when the main operation of the beauty instrument in the embodiment is performed.

Fig. 6 is a perspective view of the beauty device in the embodiment.

Fig. 7 is a plan view of the beauty instrument viewed from the first electrode side (lower side) in the embodiment.

8] is a cosmetic device viewed from the second electrode side (upper side) in the embodiment Top view with.

[Formation for carrying out the invention]

In the above-described beauty device, the electrically conductive state means that both of the first electrode and the second electrode are in contact with the human body, and a current can flow between the first electrode and the second electrode via the human body.

Further, the control unit includes a delay timer, and when it is determined that the first electrode and the second electrode are not in the electrical conduction state, the delay timer waits for a predetermined period of time, and the electric power may be configured again. Measurement of the characteristic value and the above determination (request 2). At this time, the measurement of the above-described electrical property value and the frequency of the above determination can be reduced. As a result, the beauty device can reduce the standby state, that is, reduce the power consumption of the first electrode and the second electrode in a state in which the second electrode is not in the electrically conductive state.

Further, it is preferable that the predetermined time period is set to 50 to 1000 milliseconds by the delay timer (request item 3). In this case, the measurement of the electrical characteristic value and the frequency of the above determination may be set in consideration of a decrease in power consumption due to the execution of the above-described power; and the control unit may perform the sum of the first electrode and the second electrode. The human body is in contact with the appropriate range of the shortening of the time difference in which the electrical conduction state is detected.

That is, when the predetermined time is less than 50 msec, the transition of performing the measurement of the electrical characteristic value and the frequency of the above determination is large. As a result, there is an increase in power consumption of the beauty appliance in the standby state. consider. As described above, it is preferable that the predetermined time is 50 milliseconds or more from the viewpoint of reduction in power consumption.

Further, when the predetermined time exceeds 1000 msec, the transition of the measurement of the electrical characteristic value and the frequency of the above determination is small. Therefore, there is a concern that the time difference between the above-described measurement and the above determination is increased when both the first electrode and the second electrode are in contact with the human body. As a result, the time difference between when the two electrodes are in contact with the human body and the electrical conduction state is detected and the main operation is started is increased, and the beauty device is difficult to use. Thus, from the viewpoint of convenience, it is desirable that the predetermined time is 1000 milliseconds or less.

As described above, the predetermined time is preferably 50 milliseconds or more and 1000 milliseconds or less from the viewpoints of both power consumption reduction and convenience.

In the above-described beauty device, the control unit has a reflow portion that constitutes a current that can be retracted in the human body, and measures a potential difference in the reflow portion with respect to the ground potential as the electrical characteristic value, and the potential difference is equal to or greater than a predetermined threshold value. In this case, it is determined that the first electrode and the second electrode are in the electrical conduction state (request item 4).

The control unit changes the configuration of the circuit by whether or not the first electrode and the second electrode are in contact with the human body. Therefore, it is preferable that the portion where the electrical characteristic value is measured is a portion that is relatively large in response to the pulse voltage in accordance with the contact state of the two electrodes. In this case, since the reflow portion is in contact with the human body when the electrodes are in contact with each other, the potential difference is generated in accordance with the pulse voltage, and no potential difference is generated when there is no contact. Therefore, the measurement portion as the electrical property value is suitable. Therefore, by measuring the above reflow to the ground potential The potential difference in the portion is the electrical characteristic value, and the beauty device can improve the determination accuracy of the electrical conduction state. Further, since the potential difference is used as the electrical characteristic value, a circuit for performing comparison of the potential difference with the predetermined threshold value can be relatively easily constructed. As a result, the production cost of the above-described beauty instrument can be easily reduced.

Further, the main operation is preferably an operation of applying a voltage between the first electrode and the second electrode. At this time, the voltage applied to the main operation acts on the human body via the first electrode and the second electrode. That is, at this time, the first electrode and the second electrode may function as the working electrode of the main operation. Therefore, the number of parts of the above-mentioned beauty instrument can be reduced, and it becomes easy to manufacture.

Moreover, it is preferable that the beauty instrument is an iontophoretor that permeates a cosmetic component having a charge applied to human skin into the skin by a potential difference between the first electrode and the second electrode (claim 5). The iontophoresis device is a device that applies a potential difference between two electrodes that are disposed across a human body. Therefore, when the beauty device is configured as an iontophoresis device, the first electrode and the second electrode may function as a working electrode for iontophoresis as described above. Further, the above-described beauty device is not limited to the iontophoresis device, and can also constitute, for example, an ultrasonic cosmetic device that imparts ultrasonic vibration to human skin, an EMS (Eletro Muscle Stimulation) device, a micro-current cosmetic device, a light-illuminating cosmetic device, and electroporation. Various cosmetic devices such as hair cosmetics, RF (Radio Freqency) beauty devices, and ion exporters.

[Examples]

An embodiment of the above-described beauty instrument will be described with reference to Figs. 1 to 8 . As shown in FIGS. 6 to 8, the US container 1 has the first electrode 11 and the second electrode 12 which are disposed apart from each other, and the first electrode 11 and the second electrode 12 shown in FIG. A voltage control unit 3 is applied between them. Further, as shown in FIG. 2, the control unit 3 controls the main operation (steps S7 to S11) in accordance with the contact state between the first electrode 11 and the second electrode 12 and the human body.

The beauty instrument 1 has the following three means as means for detecting the contact state of the first electrode 11 and the second electrode 12 with the human body. In other words, the pulse voltage is applied between the first electrode 11 and the second electrode 12 to measure the electrical characteristic value in the control unit 3, and the first electrode 11 and the second electrode 12 are determined based on the electrical property value. Whether or not the device is in an electrically conductive state via the human body; and means for starting the main operation when determining that the first electrode 11 and the second electrode 12 are electrically conductive. Further, as shown in FIG. 2, when it is determined that the first electrode 11 and the second electrode 12 are not electrically connected, the delay timer 303 is configured to wait for a predetermined period of time to elapse, and then the measurement and determination of the electrical characteristic value are performed again.

As shown in FIGS. 6 to 8 , the beauty instrument 1 has a substantially rod-shaped main body portion 10 and has a first electrode 11 and a second electrode 12 on the side peripheral surface of the main body portion 10 . The first electrode 11 is disposed at one end of the main body portion 10 in the longitudinal direction as shown in FIG. 7 . The second electrode 12 is disposed at the other end in the longitudinal direction of the main body portion 10 as shown in Fig. 8 . Further, the first electrode 11 and the second electrode 12 are arranged to face each other with the main body portion 10 viewed from the longitudinal direction of the main body portion 10. Placed on the opposite side. In addition, the side where the first electrode 11 in the longitudinal direction of the main body portion 10 is provided will be referred to as the front side, and the side where the second electrode 12 is provided will be referred to as the rear side. In addition, the side of the first electrode 11 when the cosmetic device 1 is viewed from the front-rear direction is referred to as a lower side, and the side of the second electrode 12 is referred to as an upper side. These directions are shown for convenience and have nothing to do with the actual orientation of the cosmetic device 1 at the time of use.

Further, the main body portion 10 is provided with a control unit 3, a power supply unit 2 that supplies power to the control unit 3, an LED indicator 14, and a vibration motor 15. As shown in FIG. 8, the LED indicator 14 is disposed at a substantially central portion of the main body portion 10 in the front-rear direction, and is configured to emit light upward. Further, the vibration motor 15 is disposed at the end (front view) of the first electrode 11 side (front side) inside the main body portion 10.

In addition, the beauty instrument 1 of the present example has an adsorption function of being adsorbed by the magnetic force and having the adsorption head 13 applied to the human skin from the skin surface as an additional function. The adsorption head 13 is disposed at the rear end portion of the beauty instrument 1 as shown in Fig. 7 . As shown in FIGS. 6 and 7, the adsorption head portion 13 has a bulging portion 131 that bulges downward. Further, the adsorption head portion 13 is provided with a magnetic force generating surface 130 which is formed on the top surface of the bulging portion 131, that is, on the opposite side (lower side) of the second electrode 12 to generate a magnetic force from a flat surface.

Hereinafter, the electrical connection between the respective parts of the beauty instrument 1 will be described in detail using FIG. 1 . The power supply unit 2 is a control microcomputer 30 and a voltage application unit 31 connected to the control unit 3; an LED indicator 14; Each of the motors 15 is supplied with operating power for each of the units.

The control unit 3 is connected to the power supply unit 2, the first electrode 11, the second electrode 12, the LED indicator 14 and the vibration motor 15, as shown in Fig. 1, and is configured to control the operation of each unit. Moreover, the control unit 3 includes a control microcomputer 30, a voltage application unit 31, and a reflow unit 32. The control microcomputer 30 has a function of inputting and outputting signals for controlling the operation of each unit. The voltage application unit 31 has a function of applying a voltage between the first electrode 11 and the second electrode 12 . The reflow portion 32 has a function of retracting a current flowing through the human body from the first electrode 11 or the second electrode 12 and returning it to the power supply unit 2 .

The control microcomputer 30 and the voltage application unit 31 are connected in such a manner as to transmit a voltage control signal and a current value selection signal which will be described later. The reflow portion 32 is disposed between the voltage application portion 31 and the ground portion 312 connected to the negative electrode of the power supply portion 2. Further, the reflow unit 32 is connected to an ADC (Analog to Digital Converter) 300, which will be described later, of the control microcomputer 30. Thereby, the control unit 3 is configured to input the potential difference in the reflow unit 32 to the control microcomputer 30.

The control microcomputer 30 includes an ADC 300, a calculation unit 301, a signal output number 302, and a delay timer 303. The ACD 300 has a function of digitizing the potential difference in the reflow portion 32. The calculation unit 301 has a function of determining whether or not the first electrode 11 and the second electrode 12 are in an electrically conductive state, that is, whether the first electrode 11 and the second electrode 12 are electrically connected to each other via the human body. The signal output unit 302 has control to flow from the first electrode 11 or the second electrode 12 to obtain a cosmetic effect. The function of current on the surface of the skin.

The ACD 300 is connected to the return portion 32 of the control unit 3, and is configured to digitize the potential difference of the return portion 32 with respect to the potential of the ground portion 312 (hereinafter, the potential of the ground portion 312 is referred to as "ground potential"). The value of the potential difference quantized by the ADC 300 is transmitted to the arithmetic unit 301 in the control microcomputer 30.

The calculation unit 301 is a value that compares the potential difference input by the ADC 300 with a predetermined threshold value. Further, when the value of the potential difference is smaller than the predetermined threshold value, the calculation unit 301 determines that the first electrode 11 and the second electrode 12 are not electrically connected, and when the value of the potential difference is equal to or higher than the predetermined threshold value, It can be determined that the first electrode 11 and the second electrode 12 are electrically connected. Further, the calculation unit 301 is configured to control the signal output from the signal output unit 302 in accordance with the result of the above-described determination and the operation flow set in advance as shown in FIGS. 2 and 3. In addition, the details of the above-described operational flow will be described later.

As shown in FIG. 1, the signal output unit 302 is configured to receive a control signal from the calculation unit 301, and outputs a voltage control signal and a current value selection signal to the voltage application unit 31. The voltage control signal is a polarity inversion circuit 310 to be described later, which is input to the voltage application unit 31, and controls the ON/OFF and polarity of the voltage applied between the first electrode 11 and the second electrode 12. Further, the current value selection signal is input to the constant current circuit 311, which will be described later, of the voltage application unit 31, and controls the current value flowing between the first electrode 11 and the second electrode 12.

Moreover, the signal output unit 302 and the LED indicator 14 and the vibration The motors 15 are connected separately. When the signal output unit 302 determines that the first electrode 11 and the second electrode 12 are electrically conductive, the signal output unit 302 outputs a drive signal for driving each of the LED indicator 14 and the vibration motor 15.

The delay timer 303 is activated by the calculation unit 301 when it is determined that the first electrode 11 and the second electrode 12 are not electrically turned on as a result of the above-described determination by the calculation unit 301. The delay timer 303 has a function of stopping the operation of the arithmetic unit 301 for a predetermined period of time. Thereby, the beauty instrument 1 is a period from the start of the delay timer 303 until the predetermined time elapses, and the operation of each unit is stopped as the operation of the calculation unit 301 is stopped. Further, the delay timer 303 re-opens the operation of the arithmetic unit 301 after the predetermined time lapse.

The voltage application unit 31 has a polarity inversion circuit 310 and a constant current circuit 311, and is configured to be connected to each other. The polarity inverting circuit 310 is connected to the signal output unit 302 of the control microcomputer 30. Further, the polarity inverting circuit 310 is connected to each of the first electrode 11 and the second electrode 12. Thereby, the polarity inversion circuit 310 can control the potential difference between the first electrode 11 and the second electrode 12 in accordance with the voltage control signal output from the signal output unit 302.

The constant current circuit 311 has a function of maintaining a current flowing between the first electrode 11 and the second electrode 12 at a constant value. Further, the constant current circuit 311 is connected to the signal output unit 302 of the control microcomputer 30. Further, the constant current circuit 311 is configured to select the signal according to the current value output from the signal output unit 302 to be able to be applied to the first electrode 11 and the second electrode. The current flowing between the poles 12 is set to two stages. In this example, the magnitude of the current is set to two stages of the degree of ion introduction and the degree of skin care of which the current value is smaller than the degree of ion introduction. Further, the degree of ion introduction is applied to the execution of the ion introduction step S8 and the reset pulse step S9 which will be described later, and the degree of skin care is applied to the execution of the skin care step S11.

The reflow portion 32 has a resistor 320 connected between the constant current circuit 311 and the ground portion 312. Thereby, the current that is withdrawn from the voltage application unit 31 side flows toward the ground portion 312 side in the resistor 320, and flows back to the negative electrode of the power source unit 2 via the ground portion 312. Further, the voltage application unit 31 of the reflow unit 32 and the resistor 320 are connected to the ADC 300 of the control microcomputer 30. Thereby, the ADC 300 constitutes a potential difference in which a ground potential is input to a point between the voltage applying portion 31 and the resistor 320.

Next, an operation flow of the beauty instrument 1 will be described with reference to FIGS. 2 to 3 . When the power supply unit 2 supplies power, the beauty appliance 1 performs the step S1 of initializing the control microcomputer 30 as shown in FIG. 2 . At this time, the control microcomputer 30 outputs a current value selection signal to the constant current circuit 311, and sets the current value to the ion introduction level.

Thereafter, the control microcomputer 30 starts the operation in the standby state formed by steps S2 to S6. In the standby state, the control microcomputer 30 performs the step S2 of waiting for the predetermined time by the delay timer 303. Further, the delay timer 303 of this example can appropriately set the predetermined time in the range of 50 to 1000 milliseconds.

The control microcomputer 30 performs the step S3 of supplying the operating power from the power supply unit 2 to the voltage applying unit 31 in step S2, and proceeds from the step S3. The signal output unit 302 outputs a voltage control signal. Thereby, the control microcomputer 30 controls the potential difference between the electrodes on the second electrode 12 to bring the first electrode 11 to a low potential, and applies a pulse voltage once between the electrodes. In this manner, the step S4 of applying the primary pulse voltage between the first electrode 11 and the second electrode 12 is performed. In this example, the value of the pulse voltage of step S4 is 5V.

Next, as shown in FIG. 2, a step S5 of measuring the potential difference in the reflow portion 32 is performed. In step S5, when both the first electrode 11 and the second electrode 12 are in contact with the skin, a pulse current of the pulse voltage flows from the second electrode 12 to the first electrode 11 via the human body. This pulse current is returned from the first electrode 11 to the control unit 3, and a waveform F1 is generated between the both ends of the resistor 320 of the reflow portion 32 in the waveform F1 shown in FIG. Further, the potential difference generated between both ends of the resistor 320, that is, the potential difference in the reflow portion 32 based on the ground potential is input to the ADC 300 of the control microcomputer 30, and the value thereof is measured.

On the other hand, when at least one of the first electrode 11 or the second electrode 12 is not in contact with the skin, even if the pulse voltage is applied, the current does not flow to the resistor 320, and a potential difference between the both ends of the resistor 320 does not occur. Therefore, when at least one of the first electrode 11 or the second electrode 12 is not in contact with the skin, the value of the potential difference is 0V.

After that, the control microcomputer 30 determines in step S6 whether or not the first electrode 11 and the second electrode 12 are in an electrically conductive state based on a comparison result between the potential difference of the calculation unit 301 and a predetermined threshold value L (see FIG. 4). When the potential difference measured in step S5 is less than the threshold L, the control is performed. The microcomputer 30 determines that at least one of the first electrode 11 or the second electrode 12 is not in contact with the human body, and the first electrode 11 and the second electrode 12 are not electrically connected (step S6 "NO"). At this time, the control microcomputer 30 returns to step S2 to start the delay timer 303. In addition, the control microcomputer 30 repeats the operation in the standby state while the first electrode 11 and the second electrode 12 are not in the electrically conductive state in step S6 (steps S2 to S6). Further, in this example, the threshold L can be appropriately set between 50 and 200 mV.

On the other hand, when the potential difference in the reflow portion 32 with the ground potential as the reference is equal to or greater than the threshold value L, the control microcomputer 30 determines that both the first electrode 11 and the second electrode 12 are in contact with the human body. The first electrode 11 and the second electrode 12 are electrically connected (step S6 "Yes"). At this time, the control microcomputer 30 starts the main operation for causing the cosmetic effect to be played (steps S7 to S11).

The cosmetic device 1 of the present example is configured as an iontophoresis device in which a cosmetic component having a charge applied to a human muscle skin is permeated into the skin by a potential difference between the first electrode 11 and the second electrode 12. That is, the main operation of the beauty instrument 1 includes an operation of causing a potential difference between the first electrode 11 and the second electrode 12. Further, the beauty instrument 1 is configured to infiltrate the inside of the skin with a cosmetic component applied to the human skin by the potential difference described above. Further, as shown in FIG. 3, the main operation of the beauty instrument 1 of the present example includes the extinguishing of the LED indicator 14 and the driving of the vibration motor 15.

Hereinafter, the main operation of the beauty instrument 1 will be described in detail. As shown in FIG. 2, the control microcomputer 30 determines when the first electrode 11 is When the second electrode 12 is in an electrically conductive state ("Yes" in step S6), the constant current circuit 311 outputs a current value selection signal, and performs a step S7 of setting the current value to the ion introduction degree. Further, the control microcomputer 30 transmits a voltage control signal to the voltage application unit 31 to cause the ion introduction current to flow from the first electrode 11 to the skin.

As shown in FIGS. 2 and 5, the iontophoresis current is an ion introduction step S8 in which a current F2 of one polarity flows out toward a contact portion between the first electrode 11 and the skin, and a pulse current F3 of the other polarity flows out toward the contact portion. The pulse step S9 is performed, and the order of the skin care step S11 in which the current F4 whose polarity is alternately replaced is discharged toward the contact portion is repeated. Thereby, the waveform of the iontophoresis current flowing through the skin is repeated as the basic waveforms F2 to F4 shown in FIG. 5.

Further, the control microcomputer 30 outputs a drive signal from the signal output unit 302 to the LED indicator 14 and the vibration motor 15 while the ion introduction current is flowing through the skin (FIG. 3, step T1). Thereby, the LED indicator 14 and the vibration motor 15 are driven while both the first electrode 11 and the second electrode 12 are in contact with the human body.

More specifically, in the ion introduction step S8, the control microcomputer 30 can control the potential difference between the electrodes so that the first electrode 11 becomes a low voltage to the second electrode 12, and a pulse voltage can be applied to the electrodes several times. . Thereby, the first electrode 11 has a basic waveform F2 as shown in FIG. 5, and can flow a pulse current of a plurality of negative polarities to the skin.

In the reset pulse step S9, the control microcomputer 30 can control the potential difference between the electrodes to make the first electrode 11 into the second electrode 12 For low voltage, a pulse voltage can also be applied between the two electrodes. Thereby, the first electrode 11 has a basic waveform F3 as shown in FIG. 5, and a positive pulse current can flow into the skin.

Further, after the reset pulse step S9, the control microcomputer 30 outputs a current value selection signal to the constant current circuit 311, and performs a step S10 of setting the current value to the skin care level.

The control microcomputer 30 performs the skin care step S11 after performing step S10. In the skin care step S11, the control microcomputer 30 is a rectangular wave in which the potential difference of the first electrode 11 of the second electrode 12 is alternately converted between the electrodes. Thereby, the first electrode 11 has a basic waveform F4 as shown in FIG. 5, and a rectangular wave current in which the positive polarity and the negative polarity are alternately converted flows through the skin.

In addition, as shown in FIG. 3, the control microcomputer 30 is a skin test that determines the state of contact between the first electrode 11 and the second electrode 12 and the human body by using a pulse current flowing through the human skin during the main operation in parallel with the main operation. Know the function. In other words, the control microcomputer 30 uses the pulse current flowing in the human skin using the ion introduction step S8, the reset pulse step S9, and the skin care step S11 in the same manner as in the step S5, with respect to the ground potential generated due to the pulse current. The measurement T2 of the potential difference of the reflow portion 32.

Further, as shown in FIG. 3, the control microcomputer 30 performs a step T3 of determining whether or not the first electrode 11 and the second electrode 12 are electrically turned on based on the result of the potential difference measurement by the reflow portion 32. Determination of the contact state of the first electrode 11 and the second electrode 12 with the human body in step T3 The determination may be performed based on the result of the potential difference side amount for one pulse current, or may be performed by combining the results of the potential difference measurement of the plurality of pulse currents. Further, the pulse current used in the above-described contact state is appropriately selected from the pulse currents in the respective steps of the ion introduction step S8, the reset pulse step S9, and the skin care step S11.

For example, in this example, the determination of the contact state of step T3 is such that the potential difference between the two sections of the resistor 320 is continuously decreased to a predetermined value due to the pulse current (Fig. 5, F3) of the reset pulse step S9. L is implemented as a reference. In other words, when the potential difference is less than the threshold L for a predetermined number of times due to the pulse current F3 (step "Tes, "Yes"), the control microcomputer 30 determines at least one of the first electrode 11 or the second electrode 12. The first electrode 11 and the second electrode 12 are not electrically connected to each other without being in contact with the human body. At this time, the control microcomputer 30 stops the generation of the pulse current, and stops the output of the drive signals to the LED indicator 14 and the vibration motor 15 (step T4). The control microcomputer 30 repeats steps S2 to S6 shown in FIG. 2 after the main operation is terminated in step T4.

On the other hand, the control microcomputer 30 determines that the number of times the potential difference is continuously smaller than the threshold value L does not reach the predetermined number of times ("T" in step T3), and determines that both of the first electrode 11 and the second electrode 12 are in contact with the human body. The first electrode 11 and the second electrode 12 are electrically connected to each other. When the control microcomputer 30 determines in step T3 that the first electrode 11 and the second electrode 12 are electrically turned on, the main operation is repeatedly performed, that is, steps S7 to S11 shown in FIG. 2 are repeatedly executed.

Next, a method of using the beauty device 1 will be described. The user applies a charged cosmetic component to the skin before using the beauty device 1. Further, in this example, L-ascorbic acid-2-phosphate trisodium salt is used in the above cosmetic component.

The user holds the main body portion 10 such that the first electrode 11 protrudes from the hand and the second electrode 12 comes into contact with the hand. Further, the user brings the first electrode 11 into contact with the skin surface in a state in which the beauty device 1 is held as described above. Thereby, the ion introduction current formed by the repetition of the basic waveforms F2 to F4 shown in FIG. 5 flows through the contact portion between the first electrode 11 and the skin. Further, in the present example, in the ion introduction step S8, the first electrode 11 functions as a cathode, the second electrode 12 functions as an anode, and a negative electric current flows through the surface of the first electrode 11 and the contact skin. Thereby, the beauty instrument 1 can permeate the L-ascorbic acid-2-phosphate ion as an anion into the skin.

Next, the effect of the beauty instrument 1 will be described. The beauty instrument 1 has means for applying a pulse voltage between the first electrode 11 and the second electrode 12 to measure an electrical characteristic value in the control unit 3. Thereby, the beauty instrument 1 can reduce the electric power consumed at the time of measurement of an electrical characteristic value compared with the case where a constant electric current continues to flow out.

Further, the beauty instrument 1 has means for starting the main operation when it is determined that the first electrode 11 and the second electrode 12 are in the above-described electrical conduction state. Therefore, it is not necessary to provide the beauty instrument 1 with a switch for switching between the main operation and the stop. Further, since the user does not need to perform the switching operation, the beauty instrument 1 becomes easy to use for the user.

Further, the beauty instrument 1 is configured as an iontophoresis device that includes an operation of applying a voltage between the first electrode 11 and the second electrode 12 in the main operation. Therefore, the first electrode 11 and the second electrode 12 can also function as a working electrode for ion introduction. As a result, the beauty instrument 1 does not need to separately provide a switch for switching the operation, a component that actively acts, and the like, and the number of parts can be reduced.

Further, when the beauty device 1 is configured to determine that the first electrode 11 and the second electrode 12 are not in an electrically conductive state, the delay timer 303 waits for a predetermined period of time to elapse, and then performs measurement and determination of the electrical characteristic value again. Thereby, the frequency of measurement and determination of the electrical property value can be reduced. As a result, the beauty instrument 1 can reduce the standby state, and can reduce the power consumption of the state in which the first electrode 11 and the second electrode 12 are not electrically connected.

Further, the control unit 3 has a reflow portion 32 constituting a current that can be retracted in the human body, and is configured to measure a potential difference in the reflow portion 32 based on the ground potential as an electrical characteristic value, and when the potential difference is a predetermined threshold or more At this time, it is determined that the first electrode 11 and the second electrode 12 are in the above-described electrical conduction state. Therefore, the control unit 3 can improve the determination accuracy of the electrical conduction state as described above, and can easily simplify the circuit configuration.

Further, by the delay timer 303, the elapsed predetermined time is set to 50 to 1000 milliseconds. Therefore, as described above, the frequency at which the measurement and determination of the electrical characteristic value of the beauty instrument 1 is performed is an appropriate range in consideration of both power consumption reduction and convenience.

In addition, the cosmetic device 1 of the present embodiment is configured as an iontophoresis device in which a cosmetic component having an electric charge applied to a human muscle skin is permeated into the skin by a potential difference between the first electrode 11 and the second electrode 12. Further, the main operation is an operation of applying a voltage between the first electrode 11 and the second electrode 12.

Further, the beauty instrument 1 includes an LED indicator 14 and a vibration motor 15, and is configured to drive the main operation. Therefore, the user can easily confirm that the main operation is performed by the vibration of the vibration motor 15, the lighting of the LED indicator 14, and the like. As a result, the beauty instrument 1 is easy for the user to use.

Moreover, in this example, as shown in FIGS. 6 to 8, the first electrode 11 and the second electrode 12 are arranged on the opposite sides in the vertical direction. Therefore, when the beauty instrument 1 is placed on a table, the possibility that the first electrode 11 and the second electrode 12 are electrically connected via the mounting surface can be reduced, and power consumption can be easily reduced.

As described above, the beauty instrument 1 can reduce the power consumption in the standby state and can be used without the switching operation.

Further, in the above embodiment, the beauty device 1 may be configured as an iontophoresis device, and the beauty device 1 having the other functions may be configured. In other words, regardless of the main operation of the beauty instrument 1, if the above-described control is performed in the standby state, the beauty tool 1 can achieve the same operational effects as those of the above-described embodiment. For example, the beauty device 1 can also be configured as an ion exporter that removes dirt and aging waste existing in the skin by a potential difference and moves it to the surface of the skin; Ultrasonic beauty device with ultrasonic vibration; light-illuminating beauty device that illuminates the skin with visible light, far-infrared rays, etc.; EMS (Eletro Muscle Stimulation) device; electroporation cosmetic device; RF cosmetic device and the like.

In the above-described embodiment, the first electrode 11 is in contact with the surface of the skin to be cosmetically applied, and the first electrode 11 functions as a working electrode for the main operation, and the second electrode 12 is also used as the working electrode. Composition. Moreover, the voltage applied between the first electrode 11 and the second electrode 12 can be appropriately set in accordance with the aspect of the main operation of the beauty instrument 1 and the composition of the cosmetic component. For example, when the cosmetic device 1 is configured as an iontophoresis device and the cosmetic component to be introduced into the skin is a cation, the potential of the first electrode 11 may be set higher than the second electrode 12 in the ion introduction step S8.

Further, a cosmetic agent that exhibits other cosmetic effects may be used before the application of the above-described cosmetic ingredients. The cosmetic agent includes, for example, a person having a function of removing dirt and an aged product of the skin, and a cosmetic ingredient different from the above-described beauty component, and the like. Further, in this case, the cosmetic agent may include the cosmetic component in advance.

Further, the above cosmetic agent may be adsorbed by a magnetic force. At this time, the above-mentioned cosmetic agent can be easily removed by the adsorption head 13 of the beauty instrument 1. In other words, after application, the user who applies the cosmetic agent causes the adsorption head portion 13 to protrude from the hand to the first electrode 11 side of the main body portion 10, and the magnetic force generating surface 130 side of the adsorption head portion 13 is brought close to the skin. Thereby, the used cosmetic agent is easily removed from the skin by the magnetic force of the magnetic force generating surface 130. It is removed and attached to the adsorption head 13.

Further, when a cosmetic agent that can be adsorbed by magnetic force contains a charged cosmetic component or the like in advance, the cosmetic component is preferably not adsorbed by magnetic force. When the adsorption head 13 is brought close to the skin by using a cosmetic component that cannot be adsorbed by magnetic force, the cosmetic component can be left on the surface of the skin and the cosmetic agent can be removed.

Further, at this time, a detachable cover member may be attached to the magnetic force generating surface 130 in advance. As long as the cover member can cover the magnetic force generating surface 130, various shapes and materials can be used. Thereby, the used cosmetic agent attached to the adsorption head 13 can be peeled off from the magnetic force generating surface 130 together with the cover member.

Further, in the beauty device 1 of the present embodiment, the main body portion 10 is provided with the adsorption head portion 13 as an additional function, and it is needless to say that the above-described excellent effect of the switching operation is not required. .

30‧‧‧Control microcomputer

302‧‧‧Signal Output

3‧‧‧Control Department

310‧‧‧Polarity reversal circuit

31‧‧‧Voltage application department

303‧‧‧Delay timer

301‧‧‧ Computing Department

300‧‧‧ADC

2‧‧‧Power Department

11‧‧‧1st electrode

12‧‧‧2nd electrode

311‧‧‧Constant current circuit

32‧‧‧Return Department

320‧‧‧Resistors

312‧‧‧ Grounding Department

14‧‧‧LED indicator

15‧‧‧Vibration motor

Claims (9)

A beauty device comprising: a first electrode and a second electrode that are disposed apart from each other; and a control unit that can apply a voltage between the first electrode and the second electrode, wherein the control unit is configured according to the first A cosmetic device that controls a main operation between an electrode and a second electrode in contact with a human body, and has a pulse voltage applied between the first electrode and the second electrode to measure electrical characteristics in the control unit. a means for determining whether the first electrode and the second electrode are electrically connected to each other via the human body based on the electrical characteristic value; and determining that the first electrode and the second electrode are in the electrical conduction state The means for starting the main operation described above is configured such that the main operation is started when both the first electrode and the second electrode are in contact with the human body. The beauty device according to claim 1, wherein the control unit includes a delay timer configured to determine that the first electrode and the second electrode are not in the electrical conduction state by the delay timer After the predetermined time has elapsed, the measurement of the electrical characteristic value and the above determination are performed again. The cosmetic device according to claim 2, wherein the predetermined time elapsed by the delay timer is set to 50 to 1000 milliseconds. The beauty device according to any one of claims 1 to 3, wherein the control unit has a composition that is retractable and flows in the human body. The current reflow portion is configured to measure a potential difference in the reflow portion with respect to the ground potential as the electrical characteristic value, and when the potential difference is equal to or greater than a predetermined threshold value, determine that the first electrode and the second electrode are electrically connected status. The beauty device according to any one of claims 1 to 3, wherein the main operation is an operation of applying a voltage between the first electrode and the second electrode. The beauty device according to claim 4, wherein the main operation is an operation of applying a voltage between the first electrode and the second electrode. The beauty device according to any one of claims 1 to 3, wherein the beauty device is a cosmetic body having an electric charge applied to human skin by a potential difference between the first electrode and the second electrode. An ion introducer that penetrates the inside of the skin. The beauty device according to claim 4, wherein the beauty device impregnates the skin with a cosmetic component having a charge applied to human skin by a potential difference between the first electrode and the second electrode. Ionizer. The beauty device according to claim 5, wherein the beauty device impregnates the skin with a cosmetic component having a charge applied to human skin by a potential difference between the first electrode and the second electrode. Ionizer.