WO2022060194A1

WO2022060194A1 - Skin treatment device

Info

Publication number: WO2022060194A1
Application number: PCT/KR2021/012910
Authority: WO
Inventors: 김태호; 신석호
Original assignee: 주식회사 메디셀
Priority date: 2020-09-18
Filing date: 2021-09-17
Publication date: 2022-03-24
Also published as: KR102668869B1; KR20220038008A

Abstract

The present invention provides a skin treatment device comprising: a housing having an opening; a heating unit positioned so that at least a portion is selectively exposed to the opening; a power unit, attached to the housing, for heating the heating unit to a set temperature; and a driving unit for linearly moving the heating unit.

Description

skin treatment device

The present invention relates to a skin treatment device.

In general, the basic structure constituting the skin is composed of three layers, such as an epidermal layer, a dermal layer, and a subcutaneous tissue. The epidermal layer is located in the uppermost layer of the skin and serves to protect the skin from external stimuli, and keratinization and keratinization occur. The dermis layer is located below the epidermis layer, about 7 times thicker than the epidermis layer, and contains collagen fibers (collagen) and elastic fibers (elastin), which are a kind of protein. The dermal layer is responsible for important functions such as nutrition, secretion, and sensation of the skin. The subcutaneous tissue forms a curve and functions to protect against external shocks and maintain body temperature.

On the other hand, due to the loss of elasticity and flexibility of the skin, a decrease in moisture content, and a decrease in regeneration power, wrinkles increase simultaneously with aging. In addition, when the weather is hot, the skin may sag, and swelling or enlarged pores may occur due to various causes such as plastic surgery, poor intake of sodium, lack of sleep and exercise, and blood circulation disorders.

Accordingly, various medical devices and skin care devices are being released to prevent skin aging and wrinkles. For example, medical devices or skin care devices using LEDs that emit wavelengths in the visible and infrared regions are effective in improving wrinkles, regenerating skin, and treating acne, and medical devices or skin beauty devices using ultrasonic vibrations are effective in skin care. .

The present invention provides a skin treatment device for treating skin and improving wrinkles.

An aspect of the present invention includes a housing having an opening, a heating unit selectively disposed such that at least a portion is exposed to the opening, a power supply unit mounted on the housing to heat the heating unit to a preset temperature, and the heating unit It provides a skin treatment device including a driving unit for linearly moving the unit.

In the skin treatment device according to the present invention, the heating unit can be rapidly heated to a preset temperature. Of course, the scope of the present invention is not limited by these effects.

1 is a view showing a skin treatment device according to an embodiment of the present invention.

FIG. 2 is a perspective view illustrating an embodiment of the heating unit of FIG. 1 ;

FIG. 3 is a configuration diagram illustrating a partial configuration of the skin treatment device of FIG. 1 .

Fig. 4 is a plan view showing the heating unit of Fig. 1;

FIG. 5 is a cross-sectional view of the heating unit of FIG. 4 ;

Fig. 6 is a rear view of the heating unit of Fig. 4;

7 is a rear view showing a heating unit according to another embodiment of the present invention.

8 and 9 are cross-sectional views illustrating a heating unit according to still another embodiment of the present invention.

10 is a graph illustrating control of current or voltage according to the operation of the skin treatment apparatus according to another embodiment of the present invention.

In addition, the heating unit is provided with a base, a plurality of projections disposed on the front surface of the base, and a heating layer coated on the rear surface of the base, current is supplied from the power supply unit to heat the base and the plurality of projections can do.

In addition, the heating unit may further include a connector disposed on the heating layer and electrically connected to the power supply unit.

In addition, the base and the protrusion may be formed of glass, and the heating layer may be formed of a material having electrical conductivity.

In addition, when the heating unit advances from the opening and comes into contact with the skin, the plurality of projections in contact with the skin are heated to a preset temperature, and when separated from the skin by retreating from the opening, the plurality of projections are separated from the skin separated, and may be set lower than the preset temperature.

Since the present invention can apply various transformations and can have various embodiments, specific embodiments are illustrated in the drawings and described in detail in the detailed description. Effects and features of the present invention, and a method for achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various forms.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, and when described with reference to the drawings, the same or corresponding components are given the same reference numerals, and the overlapping description thereof will be omitted. .

In the following examples, the singular expression includes the plural expression unless the context clearly dictates otherwise.

In the following embodiments, terms such as include or have means that the features or components described in the specification are present, and the possibility that one or more other features or components will be added is not excluded in advance.

In cases where certain embodiments may be implemented otherwise, a specific process sequence may be performed different from the described sequence. For example, two processes described in succession may be performed substantially simultaneously, or may be performed in an order opposite to the order described.

In the drawings, the size of the components may be exaggerated or reduced for convenience of description. For example, since the size and thickness of each component shown in the drawings are arbitrarily indicated for convenience of description, the following embodiment is not necessarily limited to the illustrated bar.

1 is a diagram illustrating a skin treatment device according to an embodiment of the present invention, FIG. 2 is a perspective view illustrating an embodiment of the heating unit of FIG. 1 , and FIG. 3 is a partial configuration of the skin treatment device of FIG. It is a configuration diagram showing

1 to 3 , the skin treatment device 100 includes a housing 110 , a heating unit 120 , a driving unit 130 , a power supply unit 140 , a controller 150 , a sensor unit 160 , and a timer ( 170 ) and a processor 180 .

The skin treatment apparatus 100 may come into contact with the user's skin and heat tissue of the skin in contact. In the skin treatment device 100 , the protrusions 122 of the heating unit 120 having a predetermined temperature are in contact with and separated from the skin in an instant, and at this time, the skin is vaporized or burned by the heat transferred from the skin treatment device 100 . can be created Vaporization or burns generated on the skin are regenerated again by the regenerative ability of the tissue, so that the skin can be treated.

The skin treatment apparatus 100 may come into contact with the user's skin and pressurize the contacted skin. In the skin treatment apparatus 100 , the protrusion 122 of the heating unit 120 having a predetermined temperature moves forward while heating and pressing the skin. At this time, the skin tissue is damaged by heat and external force. Thereafter, the damaged tissue of the skin is regenerated by its regenerative ability, so that the skin can be treated.

The housing 110 forms the exterior of the skin treatment device 100 and may have an internal space in which other components may be disposed.

The housing 110 may have an opening 111 through which the heating unit 120 is exposed at one end. The protrusion 122 of the heating unit 120 may be exposed to the outside through the opening 111 . The opening 111 may be set according to the size of the heating unit 120 .

In the retracted position, the heating unit 120 is arranged behind the opening 111 of the housing 110 . The projection 122 of the heating unit 120 is disposed on the inside of the opening 111 . Referring to FIG. 1 , the protrusion 122 of the heating unit 120 has a position retracted by the size of d1 from the opening 111 .

In the forward position, the heating unit 120 is arranged in front of the opening 111 of the housing 110 . The projection 122 of the heating unit 120 protrudes outward from the opening 111 . Referring to FIG. 1 , the protrusion 122 of the heating unit 120 has a position retracted by the size of d2 from the opening 111 .

The heating unit 120 can linearly move forward and backward through the opening 111 of the housing 110, and when the heating unit 120 is not driven, it is located in the inner space of the housing 110 for safety and portability. can increase

The housing 110 may be set in various ways according to an operation method of the skin treatment apparatus 100 . For example, the housing 110 may have a substantially column-shaped hand piece or a gun shape. However, hereinafter, for convenience of description, an embodiment having a columnar appearance will be mainly described.

The heating unit 120 may optionally be arranged such that at least a part thereof is exposed to the opening 111 . The heating unit 120 may be set to a retracted position in which the opening 111 moves backward by a distance of d1 and a battery position to advance forward by a distance d2 from the opening 111 according to the driving of the driving unit 130. there is. As an example, the heating unit 120 may set d2 in the forward position to be smaller than d1 in the reverse position.

Referring to FIG. 2 , the heating unit 120 may include a cover 120A, and the cover 120A may be disposed in the inner space of the housing 110 .

A base 121 and a protrusion 122 protruding from the base 121 may be disposed at the front of the cover 120A. The protrusion 122 may be a needle-shaped tip. The rear of the cover 120A may be connected to the driving unit 130 and the power supply unit 140 .

The heating unit 120 can linearly reciprocate forward and backward, and when it moves forward, the protrusion 122 is in contact with the skin, and when it moves backward, the protrusion 122 may not come into contact with the skin.

The heating unit 120 may be changed in position by the driving unit 130 . The driving unit 130 may transmit a driving force to the heating unit 120 to move the heating unit 120 forward and backward. For example, the driving unit 130 and the heating unit 120 form a vibrating mechanism, whereby the protrusion 122 of the heating unit 120 can be continuously contacted and separated from the skin.

The power supply unit 140 is mounted on the housing 110 , and may heat the heating unit 120 to a preset temperature. The power supply unit 140 may apply electrical energy to the heating unit 120 to increase the temperature of the heating unit 120 . The current applied from the power supply unit 140 may be transferred to the connector 124 of the heating unit 120 to transfer heat from the rear surface of the base 121 to the protrusion 122 .

The controller 150 is connected to each component of the skin treatment apparatus 100 and may control the operation of each component.

The controller 150 may be connected to the driving unit 130 to transmit a driving start signal to the driving unit 130 . In response to a signal from the controller 150 , the driving unit 130 may vibrate the heating unit 120 back and forth.

The controller 150 may be connected to the power source 140 , and the current applied from the power source 140 may be transmitted to the heating unit 120 . When the current is transmitted to the heating unit 120, the projection 122 may be rapidly heated to a preset temperature.

The sensor unit 160 may include a first sensor 161 for measuring temperature and a second sensor 162 for measuring pressure.

In an embodiment, the first sensor 161 may measure the heating temperature of the heating unit 120 . The first sensor 161 may measure whether the projection 122 of the heating unit 120 is heated to a preset temperature for skin treatment.

The first sensor 161 may directly measure the temperature of the protrusion 122 . Also, the first sensor 161 may measure the temperature of the base 121 to estimate the temperature of the protrusion 122 . For example, after measuring the temperature of the base 121 , the first sensor 161 may estimate the temperature of the tip of the protrusion 122 through the processor 180 .

Since the end of the protrusion 122 is a part in contact with the skin, it is important to maintain the end temperature of the protrusion 122 at a preset temperature. The first sensor 161 measures the temperature of the base 121 , and the processor 180 measures the temperature of the base 121 measured by the first sensor 161 and data on the shape of the protrusion 122 , thermal conductivity The temperature of the tip of the protrusion 122 may be estimated using the data for .

In another embodiment, the first sensor 161 may measure the temperature of the skin SK. The first sensor 161 may measure the temperature of the skin SK while the skin treatment apparatus 100 is being driven. The first sensor 161 may measure the temperature of the treatment area to generate basic data for determining whether the skin is treated at an appropriate temperature.

The second sensor 162 may measure data about a pressure that the heating unit 120 presses against the skin SK, and a stress or force generated in the skin SK. The second sensor 162 obtains information about the pressure, stress or force that the heating unit 120 presses on the skin SK, and the controller 150 or the processor 180 controls the projection ( 122) may determine whether the skin SK is pressurized with a pressure within an appropriate range.

The timer 170 may adjust the heating time of the heating unit 120 . The timer 170 may set a time for which current is applied to the heating unit 120 to adjust the heating time of the heating unit 120 .

For example, the timer 170 may set a driving time and an end time of the skin treatment apparatus 100 , and the timer 170 may cut off the current of the power supply unit 140 when the end time is reached.

As another example, the timer 170 is linked with the driving of the driving unit 130 , and may be set to apply the current of the power supply unit 140 only in the forward position of the heating unit 120 .

The processor 180 receives data from each component of the skin treatment apparatus 100, processes the received data with a preset algorithm, and transmits the processed data to the controller 150, so that the controller 150 is a driving unit ( 130 ), the power supply unit 140 , the timer 170 , and the like can be controlled.

The processor 180 may adjust the driving signals of the driving unit 130 and the power supply unit 140 based on the signal received from the sensor unit 160 .

In an embodiment, the processor 180 may synchronize a current application signal of the power supply unit 140 and a driving signal of the driving unit 130 in order to connect the driving unit 130 and the driving unit 140 to driving. For example, only when the heating unit 120 is moved forward due to the driving of the driving unit 130 , the processor 180 may be configured such that a current may be applied to the heating unit 120 from the power supply 140 to the heating unit 120 . ) and the signal of the power supply unit 140 may be interlocked. Accordingly, when the heating unit 120 is moved to the forward position by the driving of the driving unit 130 , the heating layer 123 of the heating unit 120 is heated, and the heating unit 120 is moved to the reverse position. In this case, the heating layer 123 of the heating unit 120 may not be heated.

In another embodiment, if the temperature measured by the first sensor 161 is not within a preset temperature range, the processor 180 may generate a signal for compensating for the temperature by using the measured temperature data.

As another embodiment, if the pressure measured by the second sensor 162 is not within the preset pressure range, the processor 180 may generate a signal for compensating for the pressure by using the measured pressure data.

In another embodiment, the processor 180 may control the driving of the driving unit 130 and the power supply unit 140 using data measured by the first sensor 161 and the second sensor 162 . If the temperature measured by the first sensor 161 is outside the preset temperature range, the pressure applied to the skin may be adjusted by controlling the driving of the driving unit 130 . That is, the processor 180 allows the temperature and pressure of the heating unit 120 to compensate for each other, so that the protrusion 122 can effectively treat the skin.

For example, when the temperature of the heating unit 120 is lower than a preset temperature, the processor 180 generates a signal to increase the driving force of the driving unit 130 , the pressure applied by the protrusion 122 to the skin SK can increase Even if the temperature of the protrusion 122 is lower than the preset temperature, the driving force of the driving unit 130 increases and the protrusion 122 increases the force to press the skin SK, thereby reducing the temperature drop of the protrusion 122 to the skin. It can be offset by increasing the driving force to pressurize.

When the temperature of the heating unit 120 is higher than the preset temperature, the processor 180 generates a signal to reduce the driving force of the driving unit 130, thereby reducing the pressure applied to the skin SK by the protrusion 122. . Although the protrusion 122 is smaller than the preset pressure that presses the skin, by increasing the temperature of the driving unit 130, the pressure drop that the protrusion 122 presses on the skin can be offset by increasing the temperature at which the skin is heated. .

FIG. 4 is a plan view showing the heating unit of FIG. 1 , FIG. 5 is a cross-sectional view of the heating unit of FIG. 4 , and FIG. 6 is a rear view of the heating unit of FIG. 4 .

4 to 6 , the heating unit 120 may include a base 121 , a protrusion 122 , a heating layer 123 , and a connector 124 .

The heating unit 120 may be in contact with the skin SK to heat and pressurize the skin. For example, when the heating unit 120 advances from the opening 111 and comes into contact with the skin, the plurality of protrusions 122 in contact with the skin are heated to a preset temperature, retreat from the opening 111 and separate from the skin , the plurality of protrusions 122 are separated from the skin, and the temperature of the protrusions 122 may be set lower than a preset temperature.

The base 121 has a front surface and a rear surface, and may have a substantially plate-shaped shape. The base 121 has a predetermined thickness, so that the protrusion 122 may be supported.

In one embodiment, the base 121 may be formed of a glass-based material. For example, the base 121 may be formed of quartz and may be set to be transparent.

The protrusion 122 may be disposed on the front surface of the base 121 . The protrusion 122 may be in contact with the skin SK to transfer heat and pressure.

The protrusion 122 may be set in various ways according to the area of the skin treatment or the use of the skin treatment apparatus 100 . In the drawings, the projection 122 is illustrated as having a 9x9 square arrangement, but the present invention is not limited thereto and may be set in various ways.

The protrusion 122 may have a sharp front shape. In the drawings, the protrusion 122 is shown to have a pyramid shape, but is not limited thereto and may be set in various ways.

The protrusion 122 may be formed of the same material as the base 121 . The protrusion 122 may be formed of a glass-based material like the base 121 .

The protrusion 122 may be formed by etching a part of the base 121 to be integrally formed with the base 121 . Since the base 121 and the protrusion 122 are integrally formed, the plurality of protrusions 122 can evenly distribute the pressure to the base 121 when the skin is applied.

The heating layer 123 may be disposed on the rear surface of the base. The heating layer 123 may be supplied with current from the power supply unit 140 to heat the base 121 and the protrusion 122 .

The heating layer 123 may include a conductive material and may be a planar star heating element that generates heat by electrical resistance. The heating layer 123 may be formed by applying a liquid containing a conductive material to the rear surface of the base 121 and drying.

For example, the heating layer 123 may include a functional eco-friendly material, and may be a material that does not oxidize, peel, or crack at extremely high or very low temperatures.

The heating layer 123 decomposes dissolved organic matter, has a semi-permanent deodorization and antibacterial function, and does not contain harmful substances such as heavy metals. In addition, the heating layer 123 is not oxidized or peeled off at a high temperature, emits far infrared rays, has very high corrosion resistance and wear resistance, and has high lubricity. In addition, the heating layer 123 does not generate volatile organic compounds (VOC), and the manufacturing process is simple, so the cost control is excellent, and it can be mass-produced at a low cost.

The heating layer 123 is heat-sealed to a base material (glass or titanium) at a high temperature, and can be coated once without a binder.

The heating layer 123 has a visible light transmittance of 80% or more, and can generate heat at a high temperature. The heating layer 123 , the base 121 , and the protrusion 122 may all be set to be transparent.

The heating layer 123 may be formed to have a thickness smaller than that of the base 121 , and the heating layer 123 may transfer heat generated by electrical resistance to the base 121 . Since the heating layer 123 is thinly disposed, the generated heat may be rapidly transferred to the base 121 .

The heating layer 123 may have a predetermined arrangement area AE to cover the plurality of protrusions 122 . The arrangement area AE of the heating layer 123 is disposed to overlap an area defined by the plurality of protrusions 122 . Since the heating layer 123 covers the rear of the plurality of projections 122 , heat generated in the heating layer 123 may be equally transmitted to the plurality of projections 122 .

The connector 124 may be connected to the heating layer 123 . The first connection member 124A may be connected to one side of the heating layer 123 , and the second connection member 124B may be connected to the other side of the heating layer 123 . The first connection member 124A may be connected to the power supply unit 140 by a first line CL1 , and the second connection member 124B may be connected to the power supply unit 140 by a second line CL2 .

When current is supplied from the power supply unit 140 , the first connecting member 124A and the second connecting member 124B are electrically connected by the heating layer 123 . At this time, heat is generated by the electrical resistance of the heating layer 123 , and the generated heat may be transferred to the protrusion 122 through the base 121 .

Referring to FIG. 7 , in the heating unit 220 , a heating layer 223 and a resistance line 224 may be disposed on the rear surface of the base 221 .

The resistance line 224 may be disposed in a portion of the heating layer 223 . The resistance line 224 may be disposed on an upper surface of the heating layer 223 , on a lower surface of the heating layer 223 , or in the middle of the heating layer 223 .

The resistance line 224 may form a path through which current is transmitted, thereby increasing the heating effect of the heating layer 223 . As described above, the heating layer 223 may transfer heat to the base 221 as a planar heating element. At this time, the resistance line 224 transfers heat generated from the resistance line 224 itself to the base 221 when a current is applied, and the current moves from the resistance line 224 to the heating layer 223, Heat may be generated in the heating layer 223 .

The resistance line 224 is connected to a power supply through the first terminal CP1 and the second terminal CP2 , and may be heated by a current or voltage applied from the power supply.

The resistance line 224 may have a variety of arrangements. 7 illustrates a spiral shape continuously connected from the edge of the heating layer 223 to the center, but is not limited thereto. As another example, the resistance line 224 may have a snake shape stacked in the width direction.

Referring to FIG. 8 , the heating unit 320 may include a base 321 , a protrusion 322 , a heating layer 323 , a connector 324 , and a heat dissipation layer 325 . The base 321 , the protrusion 322 , the heating layer 323 , and the connector 324 are the same as the above-described heating unit 120 , and a description thereof will be omitted or abbreviated.

The heat dissipation layer 325 may be disposed on the rear surface of the heat dissipation layer 323 . The heat dissipation layer 325 may prevent heat generated in the heat generating layer 323 from being transmitted to the rear, thereby preventing internal components from being damaged by heat.

Since the heat dissipation layer 325 blocks the heat moving backward, the heat generated in the heat dissipation layer 323 may be transferred only to the front protrusion 322 . The heat dissipation layer 325 may prevent heat dissipation and increase heat transfer efficiency.

Referring to FIG. 9 , the heating unit 420 may include a base 421 , a protrusion 422 , a heating layer 423 , a connector 424 , and an intermediate layer 425 . The base 421 , the protrusion 422 , the heating layer 423 , and the connector 424 are the same as the above-described heating unit 120 , and a description thereof will be omitted or abbreviated.

The intermediate layer 425 may be disposed between the heating layer 423 and the base 421 . The intermediate layer 425 may be formed of a material having high thermal conductivity, and may transfer heat generated in the heating layer 423 to the base 421 .

In detail, the intermediate layer 425 may diffuse the heat generated in the heating layer 423 so that the heat is uniformly transmitted to the base 421 . Accordingly, heat can be uniformly transmitted over the entire area that the heating unit 420 comes into contact with when it comes into contact with the skin.

The skin treatment apparatus 100 according to the present invention may increase the skin treatment effect by transferring heat while the heating unit is in contact with the skin. In the skin treatment apparatus 100 , the linear reciprocating motion of the heating unit and the heating unit are set to a preset temperature, and the projections of the heating unit come into contact with the skin to burn the skin while simultaneously regenerating the skin.

In the skin treatment device 100 according to the present invention, heat is generated in the heating layer, which is a planar heating element disposed on the rear surface of the heating unit, and the heat may be transferred to the protrusion in the front. Since the heating layer is formed by applying a liquid containing a conductive material, it may have a thin thickness. Since the thickness of the heating layer is thin, when a current is applied to the heating layer, the temperature can be quickly increased.

In the skin treatment apparatus 100 according to the present invention, the temperature of the protrusion is set according to the linear motion of the protrusion, thereby increasing energy efficiency. While the protrusion is in contact with the user's skin, the heat generated in the heating layer sets the protrusion to a high temperature, and when the protrusion is separated from the user's skin, the temperature of the protrusion falls. The skin treatment apparatus 100 may increase energy efficiency by generating heat in the heating layer only while heat is transferred to the skin.

Referring to FIG. 10 , the skin treatment apparatus 100 is initially driven in the first mode to output heat above a certain level, and is driven in the second mode, which is the compensation mode, when the heat output is reduced.

Hereinafter, the reference amount of heat LE0 is defined as the minimum amount of heat generated by the heating layer 123 so that the projection 122 of the heating unit 120 is maintained in a preset temperature range.

In the first mode, in the skin treatment apparatus 100 , the heating unit 120 outputs a higher amount of heat than the reference heat amount LE0.

When driving for the first time, the controller 150 controls the output of the power supply unit 140 so that the heating layer 123 transfers the first heat amount LE1 higher than the reference heat amount LE0 to the protrusion 122 . The power supply unit 140 applies the first voltage V1 and/or the first current C1 to the heating layer 123 .

In this case, the first voltage V1 is set to be less than the maximum allowable voltage of the power supply unit 140 , and the first current C1 is set to be less than the maximum allowable current of the power supply unit 140 . That is, a current or voltage lower than the maximum current or maximum voltage that the power supply unit 140 can generate is applied to the heating unit 120 , and even if a current and voltage lower than the maximum current or maximum voltage are applied to the heating layer 123 , , the projection 122 of the heating unit 120 may be heated to a preset temperature range.

The skin treatment apparatus 100 compares the actually measured amount of heat and the reference heat amount LE0 using the first sensor 161 .

When the measured amount of heat is greater than the reference heat amount LE0, the controller 150 applies the same current or voltage to the heating unit 120 as before.

When the measured amount of heat is less than or equal to the reference heat amount LE0 , the controller 150 generates a compensation signal and compensates the current or voltage applied from the power supply unit 140 .

When the second mode (compensation mode) is activated, the controller 150 generates a compensation signal through pulse width modulation (PWM). When the compensation signal is transmitted to the power supply unit 140, the power supply unit 140 applies a second voltage (V2) greater than the first voltage (V1) to the heating unit 120, or a second greater than the first current (C1) A current C2 is applied to the heating unit 120 .

In this case, the second voltage V2 is set to the maximum allowable voltage level of the power supply unit 140 . For example, the second voltage V2 may be equal to the maximum allowable voltage of the power supply unit 140 . The second current C2 is set to the maximum allowable current level of the power supply unit 310 . For example, the second current C2 may be equal to the maximum allowable current of the power supply unit 310 .

That is, in the compensation mode, since the power unit 140 is applied to the heating unit 120 at the maximum current level or the maximum voltage level that can be generated, the amount of heat irradiated from the heating unit 120 increases. When the compensation mode is started, the amount of heat measured by the first sensor 161 is rapidly increased.

The skin treatment apparatus 100 is initially driven with a current or voltage lower than the maximum current or maximum voltage of the power supply unit 140 , and the protrusion 122 may have a preset temperature range. Then, when the efficiency of the heating unit 120 is lowered by repeated use, the temperature of the protrusion 122 may be lowered. Since the skin treatment apparatus 100 is initially set to be lower than the maximum current or the maximum voltage, the current or voltage can be quickly increased when the temperature of the protrusion 122 is lowered. That is, since the power supply unit 140 has the capacity to increase the current or voltage, the temperature of the protrusion 122 can be quickly increased when the temperature is decreased.

In addition, since a high amount of heat is supplied to the protrusion 122 in the second mode, the skin treatment apparatus 100 can be used for a long time. Referring to FIG. 10 , the time exceeding the reference calorific value LE0 is longer in the second mode than in the first mode.

In the skin treatment device 100 according to the present invention, when the temperature of the protrusion 122 in contact with the skin changes, the controller 150 generates a compensation signal, and the controller 150 supplies power or current from the power supply unit 140 . By adjusting, it is possible to continuously maintain an effective temperature for skin treatment, and to increase the use time.

The spirit of the present invention should not be limited to the above-described embodiments, and not only the claims described below, but also all ranges equivalent to or changed from these claims are within the scope of the spirit of the present invention. will be said to belong to

Claims

a housing having an opening;

optionally a heating unit arranged such that at least a portion thereof is exposed to the opening;

a power supply unit mounted on the housing to heat the heating unit to a preset temperature; and

A skin treatment device comprising a; a driving unit for linearly moving the heating unit.
According to claim 1,

the heating unit

Base;

a plurality of protrusions disposed on the front surface of the base; and

A skin treatment device comprising a; a heating layer coated on the rear surface of the base, the current is supplied from the power supply to heat the base and the plurality of protrusions.
3. The method of claim 2,

the heating unit

A connector disposed on the heating layer and electrically connected to the power source; further comprising, a skin treatment device.
3. The method of claim 2,

The base and the protrusion are formed of glass,

The heating layer is formed of a material having electrical conductivity, a skin treatment device.
According to claim 1,

The heating unit is

When it advances from the opening and comes into contact with the skin, the plurality of protrusions in contact with the skin are heated to a preset temperature,

When separated from the skin by retreating from the opening, the plurality of protrusions are separated from the skin and set lower than the preset temperature, the skin treatment device.