KR20240059024A - Skin care device that combines ultrasonic waves and disposable cosmetics - Google Patents

Abstract

It relates to a home care skin care device that combines ultrasonic waves and disposable cosmetics to induce skin absorption of disposable cosmetics using ultrasonic waves, comprising a main body provided in a shape that is easy to hold by hand, a contact surface with the skin, and the contact surface. A head part coupled to the upper part of the main body so that the disposable cosmetics can be mounted and released, a user interface provided on one side of the main body to input a user's control signal, and a head part to generate ultrasonic waves with a predetermined frequency. An ultrasonic vibrator provided on the contact surface, at least one infrared LED provided on one side of the contact surface to selectively irradiate one of near infrared rays, infrared rays, and far infrared rays to the skin, and generate a predetermined micro current to apply electrical stimulation to the skin. It includes a microcurrent supply unit that is easy to clean, sterilize, and disinfect, which has the effect of preventing damage to the skin from external contamination such as bacteria and viruses when using the skin care device.

Description

Home care skin care device that combines ultrasonic waves and disposable cosmetics}

The present invention relates to a home care skin care device combining ultrasound and disposable cosmetics. More specifically, it relates to a home care skin care device combining ultrasound and disposable cosmetics that induces skin absorption of disposable cosmetics using ultrasound.

In general, human skin tissue consists of the stratum corneum, epidermis, dermis, and hypodermis, and its function deteriorates due to aging and the action of ultraviolet rays.

Representative changes in the skin due to aging and ultraviolet rays include the creation of wrinkles due to the reduction and deformation of collagen fibers in the dermis, decreased skin elasticity due to degeneration of elastic fibers composed of elastin, and activation of tyrosinase present in the epidermal layer. There is melanin pigmentation, etc.

Accordingly, cosmetics, nutrients, and medications are being provided to prevent and improve the formation of wrinkles, loss of skin elasticity, and pigmentation.

However, a thick protective wall made of protein is formed beneath the stratum corneum of the skin. In other words, the epidermis and dermis of the skin are separated by this protein defense barrier, so substances such as cosmetics, nutrients, and medications applied to the epidermis of the skin cannot penetrate deep into the dermis.

For this reason, conventionally, various skin care devices are provided that allow substances such as cosmetics, nutrients, and drugs to penetrate into the dermis of the skin.

For example, Patent Document 1 below includes a ceramic part in contact with the skin, an ultrasonic generator that generates ultrasonic waves to transmit ultrasonic vibrations to the ceramic part, the ceramic part having a main body with a flat upper surface, and a body on the upper surface of the main body. It includes a skin-contacting portion that protrudes, wherein the skin-contacting portion includes a body formed perpendicular to the upper surface of the ceramic portion and having a cut groove, a support portion formed at an upper end of the body and having an arc shape, and the body is made of aluminum mixed. An ultrasonic projector is disclosed, which is made of stainless steel and the support portion is made of silicone material.

As a result, the ultrasonic projector of Patent Document 1 below improves the shape of the skin contact surface in contact with the skin, thereby enabling sufficient delivery of nutrients to the inner layer of the skin through stimulation of ultrasonic vibration, improving the efficiency of discharging waste products within the skin or removing dead skin cells from the outer layer of the skin. There is an effect.

However, the ultrasonic ceramic of Patent Document 1 below has a problem in that it is not easy to clean, sterilize, and disinfect the ceramic portion, so the skin may be damaged from external contamination such as bacteria and viruses.

In addition, Patent Document 2 below discloses a drug case in which at least one skin delivery material among drugs and cosmetics is accommodated, a receiving space formed therein, an inflow rod that communicates with the receiving space and through which fluid flows, and the inlet rod. A housing having an injection port through which the introduced fluid is discharged, a drug injection unit having a drug injection channel inside which delivers the skin delivery material of the drug case to the inflow rod and a case receiving portion for mounting the drug case, the accommodation. A drug absorber that is inserted into the space and absorbs the skin delivery material flowing into the inflow rod, and an ultrasonic vibrator that transmits ultrasonic vibration to the drug absorber so that the skin delivery material absorbed by the drug absorber is sprayed to the outside through the injection hole. A drug and cosmetics injection device using ultrasonic waves including an ultrasonic housing is presented.

Through this, the drug and cosmetics injection device using ultrasonic waves of Patent Document 2 below can smoothly absorb drugs sprayed on the skin using the vibration of ultrasonic waves, and administer the drug desired by the operator according to the condition and conditions of the patient's affected area. There are effects you can choose from.

However, the drug and cosmetics injection device using ultrasound in Patent Document 2 below has a separate drug injection section and a drug case mounted on the drug injection section so that the operator can select the type of drug to be injected according to the condition of the patient's affected area. It only presents the technology provided, but does not present the technical features of a skin care device that is easy to clean, sterilize, and disinfect in order to prevent skin damage from external contamination such as bacteria and viruses.

Republic of Korea Patent No. 10-2175402 (announced on November 6, 2020) Republic of Korea Patent No. 10-1902390 (announced on October 1, 2018)

The purpose of the present invention is to provide a home care skin care device that combines disposable cosmetics with ultrasonic waves that are easy to clean, sterilize, and disinfect to prevent skin damage from external contamination such as bacteria and viruses when using the skin care device.

In order to achieve this technical problem, a home care skin care device combining ultrasound and disposable cosmetics according to an embodiment of the present invention has a main body provided in a shape that is easy to hold by hand, a contact surface with the skin, and the disposable cosmetics on the contact surface. It includes a head portion coupled to the upper end of the main body portion so that cosmetics can be mounted and dismounted.

In addition, the home care skin care device combining ultrasound and disposable cosmetics according to the present invention has a user interface provided on one side of the main body to input a user's control signal, and a contact surface of the head to generate ultrasonic waves with a predetermined frequency. An ultrasonic vibrator, at least one infrared LED provided on one side of the contact surface to selectively irradiate one of near-infrared rays, infrared rays, and far-infrared rays to the skin, and a micro-current to generate a predetermined micro-current to apply electrical stimulation to the skin. It further includes a current supply unit.

In addition, in the present invention, the disposable cosmetic mounted on the contact surface may include at least one of a cosmetic puff, a cotton pad, a cleansing pad, a clear pad, a cleansing water pad, an oil cleansing pad, and a cleansing sponge.

In addition, in the present invention, the head portion is provided with a pad fixing member for fixing disposable cosmetics mounted on the contact surface, and a support groove for coupling the pad fixing member is formed on the outer surface of the head portion along the circumferential direction. , The inner surface of the pad fixing member is characterized in that a fixing protrusion that fits into the support groove is formed.

In addition, in the present invention, the head portion is coupled to the main body portion in a separable manner to facilitate cleaning.

In addition, in the present invention, the ultrasonic oscillator is characterized in that the output frequency of the ultrasonic waves is in the range of 2 MHz to 4 MHz in order to apply a frequency appropriate to the thickness of the facial skin to the skin.

Additionally, in the present invention, at least one massage protrusion is provided on one side of the contact surface of the head so as to be in contact with the user's skin, and the microcurrent supply unit is provided on the user's skin through an ultrasonic vibrator and massage protrusion provided on the contact surface of the head. It is characterized by applying a microcurrent.

In addition, in the present invention, the main body further includes a human body sensing switching unit that senses contact with the human body and controls switching operations of the ultrasonic vibrator, the infrared LED, and the microcurrent supply unit.

In addition, in the present invention, the human body sensing switching unit is provided between a first electrode and a second electrode made of metal provided on the outside of the main body, and the control unit, an ultrasonic vibrator, an infrared LED, and a microcurrent supply unit, and is provided between the first electrode and the second electrode made of metal. It includes a switching module that operates on/off depending on whether the second electrode is in contact with the human body.

As described above, the home care skin care device combining ultrasound and disposable cosmetics according to the present invention is easy to clean, sterilize, and disinfect, preventing skin damage from external contamination such as bacteria and viruses when using the skin care device. There is an effect.

Figure 1 is a perspective view showing a home care skin care device combining ultrasound and disposable cosmetics according to an embodiment of the present invention.
Figure 2 is a rear view illustrating a home care skin care device combining ultrasound and disposable cosmetics according to an embodiment of the present invention.
Figure 3 is a front view for explaining a home care skin care device combining ultrasound and disposable cosmetics according to an embodiment of the present invention.
Figure 4 is a block diagram showing a home care skin care device combining ultrasound and disposable cosmetics according to an embodiment of the present invention.
FIG. 5 is a diagram for explaining the operation of the microcurrent supply unit of FIG. 4.
FIG. 6 is a diagram for explaining the human body detection switching unit of FIG. 4.

Below, with reference to the attached drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily implement the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. In order to clearly explain the present invention in the drawings, parts unrelated to the description are omitted, and similar parts are given similar reference numerals throughout the specification.

Throughout the specification, when a part is said to “include” a certain element, this means that it may further include other elements rather than excluding other elements, unless specifically stated to the contrary.

Hereinafter, the present invention will be described in detail by explaining preferred embodiments of the present invention with reference to the attached drawings.

The same reference numerals in each drawing indicate the same members.

Figure 1 is a perspective view showing a home care skin care device combining ultrasound and disposable cosmetics according to an embodiment of the present invention, and Figure 2 illustrates a home care skin care device combining ultrasound and disposable cosmetics according to an embodiment of the present invention. This is the rear view for.

In addition, Figure 3 is a front view for explaining a home care skin care device combining ultrasound and disposable cosmetics according to an embodiment of the present invention, and Figure 4 is a home care skin care device combining ultrasound and disposable cosmetics according to an embodiment of the present invention. This is a block diagram showing the manager.

A home care skin care device combining ultrasound and disposable cosmetics according to an embodiment of the present invention (hereinafter referred to as a home care skin care device) includes a main body 10, a head 20, and a cap 30, as shown in FIG. 1. ) can be composed of.

In addition, as shown in FIG. 4, the home care skin care device according to the present invention includes a user interface 110, an ultrasonic vibrator 120, an infrared LED 130, a microcurrent supply unit 140, a display unit 150, and a power unit. It may include 160 and a control unit 170.

For example, in the present invention, the user interface 110, the microcurrent supply unit 140, the display unit 150, the power unit 160, and the control unit 170 are provided in the main body 10, and the ultrasonic vibrator 120 , and an infrared LED 130 may be provided in the head portion 20.

Additionally, in the present invention, the main body 10 is provided in a shape that is easy to grip by hand. In addition, the head part 20 has a contact surface 21 with the skin on one side, and an upper end of the main body 10 so that disposable cosmetics can be mounted and released on the contact surface 21. is combined with

At this time, in the present invention, the disposable cosmetics may include cosmetic puffs, cotton pads, etc.

A cotton pad or cosmetic puff, mainly used by women, is a disposable product used to apply cosmetics such as skin lotion, milk lotion, cold cream, etc. to the skin, or to wipe off cosmetics applied to the skin before washing the face.

Conventionally, when applying cosmetics such as lotion to the face, a method was used to place a certain amount in the palm of the hand and apply it directly to the skin. However, in this case, a significant amount of cosmetics is absorbed directly into the palm, which not only increases consumption but also makes it difficult to apply cosmetics evenly over the entire skin. there is a problem.

Accordingly, disposable cosmetics such as cosmetic puffs and cotton pads that can be used one-time by applying skin lotion, milk lotion, cold cream, etc. are provided.

In addition, the disposable cosmetic of the present invention may further include a cleansing member used for moisturizing the skin, removing makeup, and washing.

In general, when makeup cosmetics are used on skin such as the face, cosmetic ingredients such as oily ingredients, colorants, and fragrances adhere to the skin. Additionally, these cosmetic ingredients may gradually become rancid or produce decomposition products over time, which may irritate the skin and reduce the physiological function of the skin.

Therefore, it is important for skin health and hygiene to clean and remove makeup cosmetic ingredients or contaminants present on the skin.

For this purpose, soap products are used to remove contaminants such as makeup cosmetic ingredients from the skin, but soap is a surfactant and has a low ability to remove makeup cosmetic ingredients, and because the aqueous solution is alkaline, it plays an important role in skin health and hygiene. You can also remove the fatty film that does the job.

Therefore, a cleansing member with excellent removal ability of makeup cosmetic ingredients or contaminants present on the skin is used.

In the present invention, the cleansing member may include a cleansing pad, clear pad, cleansing water pad, oil cleansing pad, cleansing sponge, etc.

Additionally, in the present invention, the head portion 20 may further include a pad fixing member provided to secure the disposable cosmetics mounted on the contact surface 21. Additionally, the pad fixing member may include a cylindrical fixing cap or fixing ring with open ends.

For example, in order to use the cleansing member, the user can mount it on the contact surface 21 of the head 20 and fix the edge of the cleansing member to the side of the head 20 using the fixing cap. .

At this time, a support groove for coupling the cap portion 30 or the pad fixing member is formed along the circumferential direction on the outer surface of the head portion 20. In addition, fixing protrusions that fit into the support grooves of the head part 20 are formed on the inner surfaces of the cap part 30 and the fixing cap.

Through this, the user can place the disposable cosmetics on the contact surface 21, secure them by fitting the fixing protrusions formed on the fixing cap into the support groove of the head part 20, and then use the disposable cosmetics.

In addition, after using the disposable cosmetics, the fixing protrusion of the fixing cap can be separated from the support groove to release it and then the used disposable cosmetics can be removed.

Additionally, in the present invention, the head portion 20 is detachably coupled to the main body portion 10 to facilitate cleaning.

For example, the head portion 20 may be detachably coupled to the upper end of the body portion 10 through screw coupling. In addition, a plurality of input electrodes for driving the ultrasonic vibrator 120 and the infrared LED 130 are provided at the lower part of the head part 20, and the upper part of the main body part 10 is driven to correspond to the input electrodes. A plurality of output electrodes are provided to output signals.

In addition, the input electrode or output electrode may be composed of a pogo pin provided with a buffer member to facilitate the connection between the electrodes for driving signal transmission when the head portion 20 and the main body portion 10 are coupled. You can.

In general, a pogo pin includes a casing made of a metal material having an accommodating space therein, a pin part made of a metal accommodated in the accommodating space of the casing, and an elastic body that elastically presses the pin part in a direction away from the casing.

Therefore, even if the input electrode or output electrode is worn due to frequent separation and coupling of the head part 20 and the main body part 10, or if an error occurs in the distance between the electrodes when connecting the input electrode and the output electrode, the elastic body The elastically pressed pin part can be connected smoothly by correcting the distance error between electrodes.

Through this, the home care skin care device according to the present invention can easily perform cleaning, sterilization, and disinfection by separating the head portion 20 from the main body portion 20 after using disposable cosmetics.

In addition, the cap portion 30 is detachably coupled to the upper part of the head portion 20 to prevent the contact surface 21 of the head portion 20 from being contaminated by external foreign substances. 21) can be closed or open to the outside.

That is, when the home care skin care device of the present invention is not used, the cap portion 30 is fitted to the top of the head portion 20 to close the contact surface 21 to prevent the contact surface 21 from being contaminated by dust or foreign substances. can do.

Additionally, in the present invention, the user interface 110 is provided on one side of the main body 10 as shown in FIG. 2 to allow the user to input control signals. In addition, the user interface 110 includes a power button 111 that turns the home care skin care device on or off, an ultrasonic vibrator 120, an infrared LED 130, and a microcurrent supply unit ( 140) may include a strength button 112 for adjusting the strength.

Additionally, in the present invention, the ultrasonic vibrator 120 is driven according to a control signal from the controller 170 to generate ultrasonic waves having a predetermined frequency. Additionally, in the present invention, the ultrasonic transducer 120 may include a Bolt-claped Langevin Transducer (BLT) vibrator.

In general, the BLT vibrator is a widely used vibrator for cleaning and adhesion. Two ring-shaped piezoelectric elements are installed facing each other, then electrically connected in parallel, metal blocks are attached to the top and bottom, and the whole thing is connected with bolts. It consists of one structure.

At this time, the piezoelectric element serves to receive a signal from the driving circuit and convert it into mechanical vibration.

Therefore, the home care skin care device according to the present invention allows the user to apply ultrasonic vibration to the skin through the ultrasonic vibrator 120 provided on the contact surface 21 of the head 20, thereby increasing the skin absorption efficiency of disposable cosmetics. .

In addition, in the present invention, the ultrasonic transducer 120 is configured to have an output frequency of ultrasonic waves applied to the skin in the range of 2 MHz to 4 MHz.

Through this, the ultrasonic vibrator 120 of the present invention can output a frequency suitable for facial skin, which is relatively thin compared to the skin of the abdomen and thighs, by maintaining the skin penetration depth of ultrasound at 1 to 2 cm.

In addition, in the present invention, the infrared LED 130 is provided on one side of the contact surface 21 to selectively irradiate one of near infrared rays, infrared rays, and far infrared rays to the skin according to a control signal from the control unit 170.

In the present invention, the infrared LED 130 can decompose fat contained in cosmetic ingredients or contaminants by generating heat by irradiating one of near infrared rays, infrared rays, and far infrared rays to the skin.

FIG. 5 is a diagram for explaining the operation of the microcurrent supply unit 140 of FIG. 4.

In the present invention, the microcurrent supply unit 140 receives power from the power supply unit 160 under the control of the controller 170 and generates a predetermined microcurrent for applying electrical stimulation to the skin. In addition, as shown in FIG. 5, the microcurrent generated through the microcurrent supply unit 140 is applied to the user's skin through the ultrasonic vibrator 120 and the massage protrusion 141 provided on the contact surface 21 of the head unit 20. It is approved as

In addition, in the present invention, the massage protrusion 141 is provided on one side of the contact surface 21 of the head 20 so that it can contact the user's skin, as shown in FIG. 3.

Additionally, in the present invention, the display unit 150 is provided on one side of the main body 10 to display information on the usage status of the home care skin care device. For example, the display unit 150 displays LEDs provided to display the power operation status of the home care skin care device or the driving intensity information of the ultrasonic vibrator 120, the infrared LED 130, and the microcurrent supply unit 140. It can be included.

Additionally, in the present invention, the power unit 160 supplies power to drive the home care skin care device. That is, the power supply unit 160 supplies power for the operation of the ultrasonic vibrator 120, the infrared LED 130, the microcurrent supply unit 140, and the display unit 150.

Additionally, in the present invention, the power supply unit 160 supplies power to generate microcurrent in the microcurrent supply unit 140.

Additionally, in the present invention, the control unit 170 is provided inside the main body 10 and controls the operations of the ultrasonic vibrator 120, the infrared LED 130, the microcurrent supply unit 140, and the display unit 150.

For example, the control unit 170 may control the vibration frequency of ultrasonic waves generated from the ultrasonic vibrator 120 and the wavelength of the infrared LED 130.

In addition, the home care skin care device according to the present invention may further include a human body sensing switching unit 180 that detects contact with the human body and performs a switching operation.

FIG. 6 is a diagram for explaining the human body detection switching unit 180 of FIG. 4. In the present invention, the human body sensing switching unit 180 can be operated on/off depending on whether the electrodes 181 and 182 are in contact with the human body.

In addition, the human body sensing switching unit 180 according to the present invention includes a first electrode 181 and a second electrode 182 made of metal provided on the outside of the main body 10, the first electrode 181 and the second electrode 182. It may include a switching module 183 that operates on/off depending on whether the electrode 182 is in contact with the human body.

For example, as shown in FIG. 6, when a user holds the first electrode 181 and the second electrode 182 provided on the outside of the main body 10, the first electrode 181 is touched by the human body. ) A current transmission channel is created between the and the second electrode 182.

In addition, the operating power 184 is supplied to the switching module 183 consisting of an n-channel metal-oxide semiconductor (NMOS) type switch element only during the time when the current transmission channel is created, so that the switching module 183 is turned ON. )do.

For reference, the NMOS type switch element operates so that when a predetermined voltage is input to the gate input electrode and is in a high state, the switch is turned on, and when the input electrode is in a low state, the switch is turned off. It is a device that does.

As another embodiment according to the present invention, a switching module 183 made of a p-channel metal-oxide semiconductor (PMOS) type switch element may be applied. When a PMOS type switch element is used instead of an NMOS type switch element in the switching module 183, the ground is connected to the source electrode instead of the operating power source 184.

For reference, the PMOS type switch device operates so that when a predetermined voltage is input to the gate input electrode and is in a high state, the switch is turned off, and when the input electrode is in a low state, the switch is turned on. It is a device that does.

At this time, the switching module 183 may be provided between the control unit 170, the ultrasonic vibrator 120, the infrared LED 130, and the microcurrent supply unit 140, as shown in FIG. 6.

Therefore, the signal transmission path between the control unit 170, the ultrasonic vibrator 120, the infrared LED 130, and the microcurrent supply unit 140 is connected only while the switching module 183 is maintained in the ON state. The operating states of the ultrasonic vibrator 120, the infrared LED 130, and the microcurrent supply unit 140 can be maintained.

Additionally, in another embodiment according to the present invention, the switching module 183 may be provided between the power supply unit 160, the ultrasonic vibrator 120, the infrared LED 130, and the microcurrent supply unit 140.

In this case, the power of the power unit 160 is supplied to the ultrasonic vibrator 120 only while the switching module 183 is maintained in the ON state by holding the first electrode 181 and the second electrode 182. It may be supplied to the infrared LED 130 and the microcurrent supply unit 140.

As such, the home care skin care device according to an embodiment of the present invention uses the ultrasonic vibrator 120, the infrared LED 130, and the microcurrent supply unit 140 only while the user holds the main body 10 with his hand and actually uses it. ) can be operated to prevent unnecessary power consumption.

In addition, the home care skin care device according to an embodiment of the present invention has the effect of increasing the absorption efficiency of disposable cosmetics injected into the skin by applying ultrasound and microcurrent to the skin or irradiating infrared rays.

Although preferred embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and can be easily modified by a person skilled in the art from the embodiments of the present invention to provide equivalent equivalents. Includes all changes within the scope deemed acceptable.

10: main body 20: head part
21: contact surface 30: cap portion
110: User Interface 120: Ultrasonic Vibrator
130: Infrared LED 140: Microcurrent supply unit
141: massage protrusion 150: display unit
160: power unit 170: control unit
180: Human body detection switching unit

Claims (7)

In a home care skin care device combining ultrasound and disposable cosmetics that induces skin absorption of disposable cosmetics using ultrasound,
A main body provided in a shape that is easy to grip by hand;
a head portion coupled to the upper end of the main body so that a contact surface with the skin is formed and the disposable cosmetics can be mounted and released on the contact surface;
a user interface provided on one side of the main body for inputting a user's control signal;
an ultrasonic vibrator provided on a contact surface of the head unit to generate ultrasonic waves having a predetermined frequency;
at least one infrared LED provided on one side of the contact surface to selectively irradiate one of near infrared rays, infrared rays, and far infrared rays to the skin; and
A home care skin care device that combines ultrasonic waves and disposable cosmetics, including a microcurrent supply unit that generates a predetermined microcurrent to apply electrical stimulation to the skin.
In paragraph 1:
Disposable cosmetics mounted on the contact surface are
A home care skin care device combining ultrasound and disposable cosmetics, including at least one of a cosmetic puff, a cotton pad, a cleansing pad, a clear pad, a cleansing water pad, an oil cleansing pad, and a cleansing sponge.
In paragraph 1:
In the head part
A pad fixing member is provided to secure disposable cosmetics mounted on the contact surface,
A support groove for coupling the pad fixing member is formed on the outer surface of the head portion along the circumferential direction, and a fixing protrusion is formed on the inner surface of the pad fixing member to correspond to and fit into the support groove. A home care skin care device that combines disposable cosmetics.
In paragraph 1:
A home care skin care device combining ultrasound and disposable cosmetics, wherein the head part is detachably coupled to the main body for easy cleaning.
In paragraph 1:
The ultrasonic vibrator is
A home care skin care device combining ultrasound and disposable cosmetics, characterized in that the output frequency of ultrasound is in the range of 2MHz to 4MHz in order to apply a frequency appropriate to the thickness of facial skin to the skin.
In paragraph 1:
At least one massage protrusion is provided on one side of the contact surface of the head so as to be in contact with the user's skin,
A home care skin care device combining ultrasound and disposable cosmetics, wherein the microcurrent supply unit applies microcurrent to the user's skin through an ultrasonic vibrator and massage protrusions provided on the contact surface of the head.
In paragraph 1:
The main body further includes a human body sensing switching unit that detects contact with the human body and controls switching operations of the ultrasonic vibrator, infrared LED, and microcurrent supply unit,
The human body detection switching unit
A first electrode and a second electrode made of metal provided on the outside of the main body,
Ultrasonic and disposable devices including a switching module provided between the control unit, an ultrasonic vibrator, an infrared LED, and a microcurrent supply unit and operating on/off depending on whether the first electrode and the second electrode are in contact with the human body. A home care skin care device that combines cosmetics.