HK1193573B - Electric module for stimulating skin - Google Patents

Description

Electric skin stimulation module

Technical Field

The present invention relates to an electromotive skin stimulation module, and more particularly, to an electromotive skin stimulation module for forming a relatively high potential difference between power terminals of different polarities without a voltage boosting circuit (voltage boosting circuit), so that a large current flows through the skin of a human body so that the effect of iontophoresis (ionophoresis) can be significantly improved.

Background

The pursuit of beauty in humans is a fundamental instinct, and thus accompanying human history, the pursuit of clean, beautiful skin has led to various efforts to manage the skin and maintain youth. Particularly, in pursuit of beauty, skin is a very important target in the aspect of being craving for beauty, and particularly, facial skin is one of important factors determining beauty appearance and is a factor deeply affecting beauty.

Therefore, most people make efforts to protect and manage their skin regardless of sex or age, and various products for skin care have been proposed to meet these efforts. For example, there is a skin care device that utilizes the activity of ions to improve the absorption of cosmetics.

This skin care device, which utilizes the activity of ions, is too expensive to purchase and too large in size to use. The existing skin care devices have the following disadvantages: it is too complex to handle and simple to use.

Further, there is a skin care device using a low frequency in order to improve the disadvantages of the existing skin care device using ionic activity, such as a low frequency skin care device for changing the output state of the low frequency to provide physical stimulation to the skin and removing trash substances in the skin by ionic activity, etc., where this low frequency skin care device performs skin care by using only electrical stimulation through low frequency and ionic activity (typically, iontophoresis).

Iontophoresis is a method of increasing the permeation of ionic drugs into human skin by forming a potential difference on the human skin and changing the electrical environment of the skin, and its important key is the formation of maximum current. That is, the skin resistance of the human body is very high, from several tens of k Ω to several tens of M Ω, and thus a relatively high input voltage of more than 15V is required to introduce a sufficient current into the skin. For these reasons, the existing face massage apparatus using iontophoresis generally includes a voltage boosting circuit in an ion current generator, and thus the structure of the ion current generator is complicated, the entire size of the existing face massage apparatus is increased, and it is inconvenient to carry and keep.

However, existing skin care devices using iontophoresis generally use a battery as a power source to obtain an input voltage higher than 15V by boosting the voltage of the battery, but for this purpose, an additional boosting circuit is required and this makes the existing skin care devices more complicated, larger in size, and also increases the manufacturing cost.

Disclosure of Invention

Technical problem to be solved

Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and an object of the present invention is to provide an electromotive skin stimulation module as follows: which is used to form a relatively high potential difference between power supply terminals of different polarities without a booster circuit, so that a large current flows through the skin of a human body so that the effect of iontophoresis can be improved.

The invention also provides an electrically powered skin stimulation module as follows: in which boosting between power terminals directly contacting with the skin of a human body is performed using a current of induced electromotive force generated from a coil of a rotating shaft without an external power supply and without using a battery, so that consumption of the battery can be minimized.

The invention also provides an electrical skin stimulation module as follows: it will transmit the vibration to the skin to human skin through whole electronic skin stimulation module to lead to the extension of vibration transmission area and the exemption of complicated boost circuit, thus can reduce electronic skin stimulation module's whole volume and can improve the mobility.

The technical scheme adopted

In order to achieve this object, an electrically operated skin stimulation module is proposed, comprising: a base including power terminals of different polarities formed at one side of the base to drive the vibrator and connected to each other through human skin as a conductor; the vibrator is arranged on at least one side of the base; a driving unit installed in the base and including a rotation shaft for providing a driving force to the vibrator and a coil for inserting the rotation shaft; a driving switch installed at a power input terminal of the driving unit to turn on/off power supply to the driving unit; a controller which controls on/off of the driving switch to control an operation state of the driving unit and a vibration state of the vibrator according to an operation of the driving unit; and an induced electromotive force processor including an input terminal connected in parallel between the drive switch and the drive unit, and letting an electric power generated from the coil around the rotation axis flow to an output terminal of the drive unit when the drive unit is idle by turning off of the drive switch.

The controller controls the driving switch to be turned on/off at preset time intervals in a Pulse Width Modulation (PWM) manner.

Further, the driving unit includes a DC (direct current) motor and the driving switch includes a transistor in which a driving voltage of the driving unit is supplied to an emitter and a pulse signal is applied to a base.

The induced electromotive force processor is a power diode.

The base is a printed circuit board on which the driving unit, the driving switch, the controller, and the induced electromotive force processor are mounted, and on which a circuit pattern for electrically connecting these components to each other is formed.

The printed circuit board is a Flexible Printed Circuit Board (FPCB).

An output voltage of a maximum value of 13V and an output current of a maximum value of 12mA are discontinuously outputted from the power terminal of the base, which is connected to the output terminal of the driving unit, to the skin of the human body.

The motorized skin stimulation module further comprises: a battery mounted on the base to supply power to the driving unit and the controller; a power connection electrically connecting power terminals of the battery to power terminals of the drive unit on the base; and an insulator attached to a contact region between the power supply connector and the power terminal of the battery, and making contact between the power supply connector and the power terminal of the battery when the insulator is removed from the battery.

The insulator is made in the form of a sheet, and is detachably attached to the battery to shield the power terminal of the battery.

Effects of the invention

According to the embodiments of the present invention, since the potential difference between the power supply terminals of different polarities is increased without the booster circuit, and by doing so, a large current can be made to flow through the skin of the human body, it is possible to maximize the effect of the iontophoresis.

Further, since the boosting between the power terminals directly contacting the skin of the human body is performed using the induced electromotive force generated from the coil of the rotary shaft without the boosting circuit and the consumption of the battery, the consumption of the battery can be minimized during the use of the electric skin stimulation module.

Furthermore, since the vibration is transferred to the human skin through the entire electric skin stimulation module without a relatively complicated booster circuit, the region to which the vibration is transferred is relatively expanded, and the mobility of the electric skin stimulation module can be improved due to the relatively miniaturized overall volume of the electric skin stimulation module.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings. In the drawings:

FIG. 1 is a perspective view illustrating an electrically powered skin stimulation module according to an embodiment of the present invention;

FIG. 2 is a rear perspective view illustrating an electrically powered skin stimulation module according to an embodiment of the present invention;

FIG. 3 is a block diagram illustrating a motorized skin stimulation module according to an embodiment of the present invention;

FIG. 4 schematically illustrates a circuit that processes induced electromotive force of an electrical skin stimulation module according to an embodiment of the present invention;

fig. 5 and 6 are graphs illustrating variations of an output voltage of a driving unit of an electric skin stimulation module according to an embodiment of the present invention; and is

FIG. 7 is a perspective view illustrating an electrically powered skin stimulation module according to another embodiment of the present invention.

Detailed Description

Hereinafter, an electric skin stimulation module according to preferred embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a perspective view illustrating an electrically powered skin stimulation module according to an embodiment of the present invention. FIG. 2 is a rear perspective view illustrating an electrically powered skin stimulation module according to an embodiment of the present invention. FIG. 3 is a block diagram illustrating an electrical skin stimulation module according to an embodiment of the present invention. Fig. 4 schematically illustrates a circuit for processing the induced electromotive force of the electrical skin stimulation module according to an embodiment of the present invention.

As shown, the electric skin stimulation module 100 according to the embodiment of the present invention includes a base 110, a vibrator 120, a driving unit 130, a driving switch 140, a controller 150, and an induced electromotive force processor 160.

The base 110 has power terminals 111 and 112 of different polarities, and the power terminals 111 and 112 are installed at one side of the base 110 and serve to drive the vibrator 120. The power terminals 111 and 112 supply power to the driving unit 130 for driving the vibrator 120 to vibrate. In addition, the power terminals 111 and 112 are connected to each other through the human skin as a conductor, and this is used for iontophoresis that forms a potential difference on the human skin to change the electrical environment of the human skin and increase the permeation of ionic drugs.

The vibrator 120 is installed on at least one side of the base 110, and the vibrator 120 vibrates in a preset pattern according to an operation of a driving unit 130 described later. The vibration of the vibrator 120 is transmitted to the base 110, and thus the entire base 110 is vibrated when the vibrator 120 is vibrated.

The driving unit 130 is installed in the base 110, and includes a rotating shaft (not shown) for providing a driving force to the vibrator 120 and a coil for inserting the rotating shaft. The DC motor is a typical example of the driving unit 130. Therefore, although the driving unit 130 will be described hereinafter with a DC motor, the present invention is not limited thereto. Reference numeral 131 denotes a power supply processor (power supply processor) installed in the power input terminal of the driving unit 130.

The driving switch 140 is installed at a power input terminal of the driving unit 130, and is turned on/off to supply power to the driving unit 130 or interrupt power supplied to the driving unit 130. In this embodiment, the drive switch 140 is a transistor that: the emitter thereof is supplied with the driving power of the driving unit 130, and the base thereof is supplied with the pulse signal from the controller 150. The present invention is not limited thereto, and the driving switch 140 may be of various types satisfying the following conditions: the switch is turned on/off by a pulse signal from the controller 150 to supply power to the driving unit 130 or interrupt power supplied to the driving unit 130. Further, in this embodiment, the driving power applied to the driving unit 130 is 3V.

The controller 150 controls the on/off of the driving switch 140 so that the operation state of the driving unit 130 and the vibration state of the vibrator 120 according to the operation of the driving unit 130 are controlled. The controller 150 controls the driving unit 130 in a Pulse Width Modulation (PWM) manner. That is, when the pulse signal of the controller 150 is applied to the base of the transistor, i.e., the driving switch 140, the transistor is repeatedly turned on/off at preset time intervals according to the pulse signal.

The induced electromotive force processor 160 includes an input terminal connected in parallel between the driving switch 140 and the driving unit 130 and an output terminal connected in parallel to the output terminal of the driving unit 130. The induced electromotive force processor 160 allows electric power generated by a coil around a rotation axis of the driving unit 130 to flow to an output terminal of the driving unit 130 when the driving unit 130 is at rest by the off operation of the driving switch 140. That is, the DC motor as the driving unit 130 is driven when power is supplied thereto by the turn-on of the driving switch 140, and is rotated due to rotational inertia even when the driving switch 140 is switched to the turn-off according to the pulse signal from the controller 150, in the process of which an induced electromotive force is generated at a coil of the DC motor.

The induced electromotive force generated at the coil of the DC motor is applied to the output terminal of the driving unit (DC motor) 130, and thus is applied to the negative (-) power terminal of the base 110 electrically connected to the output terminal of the driving unit 130 to flow a relatively large current. In other words, a driving power of 3V is applied to the DC motor as the driving unit 130, that is, the voltage of the positive (+) power supply terminal of the base 110 is 3V, in which the voltage of the negative power supply terminal of the base 110 becomes 13V by an induced electromotive force applied from the coil of the DC motor.

Further, in this embodiment, although the induced electromotive force processor 160 is a power diode, the present invention is not limited thereto, and the induced electromotive force processor 160 may be various types satisfying the following condition: the induced electromotive force generated at the coil of the DC motor is applied to the output terminal of the DC motor.

In this embodiment, the base 110 is a printed circuit board on which the driving unit 130, the driving switch 140, the controller 150, and the induced electromotive force processor 160 are mounted, and the base 110 includes a circuit pattern for electrical connection between the mounted components. The printed circuit board may be a Flexible Printed Circuit Board (FPCB) in order to facilitate the base 110 to be attached to the human skin along the contour of the human skin and to more effectively transmit the vibration of the vibrator 120 to the human skin.

As shown in fig. 1 to 4, due to the above-described structure, the electric skin stimulation module 100 increases the potential difference between the power terminals 111 and 112 of different polarities using induced electromotive force generated at the coil of the DC motor without a booster circuit, thus allowing a greater amount of current to flow through the skin of the human body and allowing the effect of iontophoresis to be improved.

Further, since the boosting of the power terminals 111 and 112 directly contacting the skin of the human body is performed using the current of the induced electromotive force generated from the coil of the rotation shaft without the boosting circuit and without the consumption of the battery 170, the consumption of the battery 170 can be minimized.

Furthermore, since vibrations are transmitted to the human skin through the entire electric skin stimulation module 100, the vibration transmission area is expanded and a relatively complicated booster circuit is not required, thus allowing the overall volume of the electric skin stimulation module 100 to be reduced and improving its mobility.

Fig. 5 and 6 are graphs illustrating variations of an output voltage of a driving unit of an electric skin stimulation module according to an embodiment of the present invention.

Referring to fig. 5, power is supplied to the DC motor in a region "a" and power is not supplied to the DC motor in a region "b". In this embodiment, a voltage of 5V is applied to the input terminal of the DC motor so that a pulse signal of 5V is applied from the controller 150 to the driving switch 140. The region "C" represents a voltage of the induced electromotive force generated at the region "b". As shown in the figure, an induced electromotive force of 13V at the maximum is generated at a region where power is not supplied to the DC motor.

As shown in fig. 6, when the induced electromotive force of the maximum value of 13V is generated at the region "b", it is confirmed that the current of the maximum value of 12mA flows through the skin of the human body. In this case, the operations of induced electromotive force and current are applied to the human skin in the form of discontinuous pulses, and these operations are similar to acupuncture on the human skin, thus allowing the human skin to receive useful stimulation and also allowing massage and therapeutic effects to be provided.

Furthermore, fig. 7 is a perspective view illustrating an electric skin stimulation module according to another embodiment of the present invention. As shown, each of the electrically powered skin stimulation modules 200 includes a power connection 180 and an insulator 190. The remaining components of the electrical skin stimulation module 200 are identical to the components of the electrical skin stimulation module 100 according to the embodiment as shown in fig. 1 to 4, and therefore a detailed description thereof will be omitted while using the same reference numerals.

The battery 170 is installed in the base 110, and supplies power to the driving unit 130 and the controller 150 through the power connection 180.

The power supply connector 180 electrically connects power terminals (not shown) of the battery 170 to power terminals (not shown) of the driving unit 130 formed on the base 110. In other words, the driving unit 130 is electrically connected to the battery 170 through the power connection 180. The power terminals of the base 110 may supply power to the controller 150, and thus the base 110 includes a circuit pattern connecting the power terminals to the driving unit 130 and the controller 150 in parallel.

The insulator 190 is attached to a contact region between the power terminal and the power connector 180. That is, the insulator 190 is attached to the battery 170 so as to interrupt the electrical connection between the power terminal of the battery 170 and the power connector 180, and the electrical connection between the power terminal of the battery 170 and the power connector 180 is completed when the insulator 190 is removed from the battery 170. In this case, the insulator 190 is detachably attached to the battery 170, and the electrical connection between the power terminal of the battery 170 and the power connector 180 is controlled by the attachment and detachment of the insulator 190 to supply and interrupt the power supplied to the driving unit 130.

That is, the insulator 190 may be switched between the power terminals and the power supply connection 180 without using a switch, in the process the electrical skin stimulation module 200 may be configured such that the power of the battery 170 can be consumed only when used by the switching function of the insulator 190. In other words, the elimination of the switch enables the volume of the electric skin stimulation module 200 to be reduced and the depletion of the battery 170 to be performed only when the vibrator 120 is driven.

Although the insulator 190 is an attachable thin pad (thoseal) in order to shield the power terminal of the battery 170 in this embodiment, the present invention is not limited thereto, and the insulator 190 may be changed and modified into various types under the condition that the insulator 190 is detachably attached to the power terminal region of the battery 170 and power is supplied between the power terminal of the battery 170 and the power connection 180.

Although the preferred embodiments of the present invention have been described for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

List of reference numerals

100: electric skin stimulation module

110: base seat

111: positive power supply terminal

112: negative power supply terminal

120: vibrator

130: drive unit

131: power supply processor

140: driving switch

150: controller

160: induced electromotive force processor

170: battery with a battery cell

180: power supply connecting piece

190: insulator

Claims (9)

1. An electrically powered skin stimulation module, comprising:

a base including power terminals of different polarities formed at one side of the base to drive the vibrator and connected to each other through human skin as a conductor;

the vibrator is arranged on at least one side of the base;

a driving unit installed in the base and including a rotation shaft for providing a driving force to the vibrator and a coil for inserting the rotation shaft;

a driving switch installed at a power input terminal of the driving unit to turn on/off power supply to the driving unit;

a controller which controls on/off of the driving switch to control an operation state of the driving unit and a vibration state of the vibrator according to an operation of the driving unit; and

an induced electromotive force processor including an input terminal connected in parallel between the drive switch and the drive unit and an output terminal connected in parallel to an output terminal of the drive unit, and flowing electric power generated from the coil around the rotation axis to the output terminal of the drive unit when the drive unit is idle by turning off of the drive switch.

2. The electrical skin stimulation module of claim 1, wherein the controller controls the driving switch to be turned on/off at preset time intervals in a Pulse Width Modulation (PWM) manner.

3. The electrical skin stimulation module of claim 1, wherein the driving unit comprises a DC motor and the driving switch comprises a transistor in which a driving voltage of the driving unit is supplied to an emitter and a pulse signal from the controller is applied to a base.

4. The electrical skin stimulation module of claim 1 wherein the induced electromotive force processor comprises a power diode.

5. The electric skin stimulation module of claim 1, wherein the base includes a printed circuit board on which the driving unit, the driving switch, the controller, and the induced electromotive force processor are mounted, and a circuit pattern for electrically connecting these components to each other is formed on the printed circuit board.

6. The electrical skin stimulation module of claim 5, wherein the printed circuit board comprises a Flexible Printed Circuit Board (FPCB).

7. The electrical skin stimulation module of claim 1, wherein an output voltage of a maximum value of 13V and an output current of a maximum value of 12mA are discontinuously output from the power terminal of the base, which is connected to the output terminal of the driving unit, to the skin of the human body.

8. The electrical skin stimulation module of claim 1, further comprising:

a battery mounted on the base to supply power to the driving unit and the controller;

a power connector electrically connecting power terminals of said battery to power terminals of said drive unit on said base; and

an insulator attached to a contact region between the power terminal of the battery and the power connector, and making contact between the power terminal of the battery and the power connector when the insulator is removed from the battery.

9. The electric skin stimulation module of claim 8, wherein the insulator is made in the form of a sheet and is detachably attached to the battery to shield the power terminal of the battery.