KR101978057B1 - Ozone-free Plasma Skin-care Device with Diode Ground-Pad - Google Patents

Abstract

The present invention is a plasma apparatus free of ozone by cleaning ozone using a carbon filter by sucking ozone using a fan or an air pump, characterized in that the head portion of the high voltage electrode covered with the dielectric layer is curved. In particular, it is a device having a skin lifting function using an air pump. And a pole-ground pad is attached to the inner surface of the body case to induce a high voltage to the high-voltage electrode of the head part.

Description

TECHNICAL FIELD [0001] The present invention relates to an ozone-free Plasma Skin-care Device with a Diode Ground-

The present invention relates to a portable skin cosmetic plasma apparatus.

The DBD type plasma generating apparatus has been developed and commercialized as a skin beauty and skin disease apparatus.

The device developed by the skin beauty machine may be in the form of a rod, a stick, a roller, or the like.

The DBD plasma is a method in which plasma is generated by human body contact on the surface of the dielectric layer.

The concept of the above-mentioned DBD type plasma apparatus has been presented at the laboratory level since about 20 years. In addition, the plasma effect has been shown in domestic and foreign journals in the past 20 or more years in relation to activation of skin cells, sterilization of various pathogens, and decomposition of organic and inorganic compounds.

It has been reported that sterilization of plasmas, in which pathogenic bacteria such as bacteria, fungi and viruses come into contact with the plasma, rupture the pathogenic cells or kill them by binding with plasma radicals (mainly ROS series).

Since human skin is surrounded by cells in the form of protein, the skin cells are not directly killed by exposure to plasma, plasma energy is transferred through protein tissue, or plasma radicals (mainly RNS system) Skin regeneration has been reported, including the application of energy to the skin and prevention of aging of the skin.

Prior art documents on plasma devices for treatment of skin cosmetics and skin diseases of the DBD discharge method are disclosed in JP2013128681, KR101407672, JP2005334052, registered Utility Model No. 20-0454538, registered patent publication No. 10-1262632, B1) 10-1577207.

In the above patent, the main content of the registered patent publication (B1) 10-1577207 is summarized as follows.

(1) The plasma generation head portion of the DBD type is in the form of a surface electrode, and the surface electrode is elastically connected to the power supply of the power supply portion.

(2) A grounding pad is provided on the surface of the device body, a non-conductive material is coated (20 to 50 m), plasma is generated by skin contact of the head while holding the grounding pad by hand, The plasma is not generated in a state in which the user does not touch the hand.

(3) Pulse drive having a constant duty ratio by voltage modulation to minimize ozone generation.

In addition to the above-mentioned patent, the contents of the patent application 10-2017-0018739 by the present inventors and applicants are as follows.

Application No. 10-2017-0018739 is difficult to generate plasma due to skin contact of the user since the high voltage electrode surface is flat. In order to compensate for this, a method of providing a depressed or embossed form of the dielectric layer was proposed.

In addition, Application No. 10-2017-0018739 proposes a plasma skin treatment device without ozone release.

It is an object of the present invention to provide a skin-beauty plasmatic device which improves and supplements the above-mentioned application technique.

The DBD-type portable plasma generator needs to solve the problem of user's safety and convenience.

The three challenges are: (1) ease of skin contact, (2) the device is free from ozone depletion, (3) the electrical power of the grounding of high voltage power supplies in handheld devices using rechargeable batteries And (4) problems corresponding to large area electrodes.

Details of the above problems are as follows.

First, in the conventional planar electrode unit, plasma is generated only at the edge of the contact skin due to skin contact, and no plasma is generated inside the skin surface contacted to the electrode surface. Therefore, when the user arbitrarily operates the apparatus by skin contact, the plasma does not easily occur across the entire surface.

Second, a device that does not emit ozone should be provided. The conventional apparatus inevitably employs a method of reducing the amount of generated plasma by using a modulated wave having a pulse waveform of a voltage or a duty cycle (duty ratio) of a certain time in order to observe an allowable value of ozone (0.05 ppm or less). Accordingly, the amount of generated plasma is limited and the skin care effect is deteriorated.

Third, the grounding portion of a high voltage device using a secondary battery should provide electrical safety, discharge efficiency, and user convenience.

Fourth, conventional DBD devices have a small electrode area. Conventional grounding pads do not function in the case of a large-area electrode in order to widen the treatment area of the skin, and ozone generation becomes serious due to an increase in plasma generation amount.

The above problems are closely related to the action of the grounding pad. Here are some more details regarding the grounding pad:

Portable high-voltage electrical devices using secondary batteries are not grounded, so grounding pads are required. In particular, when a transformer is used in a high voltage power supply, both ends of the transformer's secondary coil output a high voltage with a different polarity. Accordingly, in the devices having a single electrode as shown in FIG. 1, it is preferable that one of the transformer output terminals is connected to the high voltage electrode and the other is grounded. However, when a secondary battery is used, since there is no separate ground, it is inevitable to adopt a method of connecting the other side output terminal of the transformer secondary coil to the ground pad using the grounding pad. Of course, this problem does not occur because the non-portable using a general power supply uses a common power ground.

Portable devices using secondary batteries using conventional transformers place a common ground pad on the body of the device. The width of the electrode surface of the ground pad provided on the body should be at least 10 times larger than the area of the high voltage electrode. In addition, when the hand pad is not in contact with the ground pad by hand, the ground pad does not function, and a high voltage is not induced in the high voltage electrode, and plasma generation is difficult. In addition, the grounding pad does not function even when the grounding pad is wrapped around a thick glove of insulating material.

The present invention provides a solution to these problems.

A solution to the above problems will be described.

(1) In order to improve the skin contact property, the high-voltage electrode surface is improved to be curved so that plasma is generated on the entire surface of the skin contact surface even by the user's arbitrary contact. The curved surface may be spherical, cylindrical, convex or concave. These curved surfaces have a skin pressure effect, which enhances the beauty and therapeutic effect of the skin.

(2) In order to provide a device free from ozone, a plasma generated by skin contact using a fan or an air pump sucks ozone into the body of the apparatus, oxygenates ozone by a carbon filter, and discharges it. Accordingly, in the present invention, it is not necessary to minimize the amount of generated plasma by modulating the waveform of the power supply voltage in order to minimize the amount of generated ozone. Therefore, it is possible to maximize the amount of generated plasma to enhance the skin treatment effect. In particular, when an air pump is used, a skin lifting function can be added.

(3) We propose a bipolar grounding pad as a solution to the grounding problem of a high-voltage power supply.

(4) Even in the case of having a large-area electrode surface, the problem caused by the large-area electrode configuration can be solved by using a bipolar ground pad.

The bipolar ground pad is constructed as follows.

One of the electrode pads (first pad) connects to one of the transformer secondary coils. And the other one of the electrode pads (second pad) is connected to a metal material combined with a switch installed on the surface of the device. The voltage of the second pad electrode connected to the metal material becomes 0 Volt and the voltage of the first pad electrode is also reduced to almost 0 Volt and the voltage of the second pad electrode connected to one terminal of the transformer secondary coil The maximum high voltage is induced in the high voltage electrode. The area of the ground pad is sufficient to function as a ground pad within about 10 times the area of the high voltage electrode of the head, and the ground pad is embedded inside the body. The switch itself may be a metal-like conductor or a conductor-coated one. The conductor coating may be a metal, graphene, graphite, or the like.

In this way, the switch is installed on the handle of the body and the device is operated based on the switch operation. In addition, it is also possible to provide a plurality of the skin contact portions of the head portion so that the device operates only when the skin contacts with the action of the switch.

According to the present invention, plasma is easily generated by a user's skin contact arbitrarily, and a plasma apparatus without ozone release, a device with skin pressing and skin lifting function, and a connection method between a bipolar ground pad and a power supply device, A portable skin cosmetic plasma apparatus which is easy to use, has a small power consumption and can be used for a long time is realized.

FIG. 1 is an outline of an example of a conventional portable plasma apparatus having a ground pad and a graph of change in electrode voltage due to the action of the ground pad.
FIG. 2 is a conceptual diagram of a portable plasma device for treating skin and skin diseases with a curved electrode head according to the present invention, an ozone sucking treatment device and a bipolar ground pad, and a graph of a voltage induced on a high voltage electrode by the action of a ground pad.
3 is a schematic view of a plasma apparatus having a skin lifting function employing an air pump.
Fig. 4 is a curved shape of an electrode surface in contact with the skin of the head portion, showing a semicircular cylinder type (a), a hemispherical type (b), and a ridge type (c).
FIG. 5 is a schematic view of a face-to-face plasma generator having a high-voltage electrode having a plurality of curved surfaces by applying a bipolar ground pad according to the present invention.

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

The following two patent applications are incorporated herein by reference and were invented by the present inventors and filed by the present applicant.

(1) Skin-contact type plasma skin treatment device (Application No.: 10-2017-0018739)

(2) A skin treatment apparatus having a floating electrode (Application No. 10-2017-0029855)

FIG. 1 is an overview of an example of a conventional portable plasma apparatus having a ground pad and a change in electrode voltage due to the action of a ground pad.

In general, a portable device using a secondary battery has no grounding, so that electric shocks to the human body are frequently caused by static electricity. In particular, when the high voltage electrode 210 is provided as shown in FIG. 1, it is inevitable to install a ground pad to prevent electrical shock.

In general, when a transformer is used in a power supply generating a high voltage, two terminals (first terminal 342 and second terminal 343) are provided in the transformer secondary coil. In the case of FIG. 1 (a) in which a single high voltage electrode 210 is provided at the head of the plasma device as a skin beauty device, the high voltage electrode 210 is connected to the first terminal 342 of the transformer secondary coil. However, when the second terminal 343 of the secondary coil is floated (when not connected to the electrode), no voltage is generated in the high voltage electrode 210. [ Accordingly, there is a method of connecting the second terminal 343 to the cathode of the secondary battery, but in this case, a high voltage is not induced in the high voltage electrode of the head portion, which is not a preferable connection method. Alternatively, if the body case of the skin treatment device is made of metal, the second terminal 343 may be connected to the body case. However, in this case, static electricity is accumulated on the body, and electrical shock due to static electricity may occur due to human contact. Accordingly, it is a general method to connect the second terminal of the transformer secondary coil to the pad electrode of the ground pad by providing a ground pad as shown in FIG. 1 (a).

The conventional portable plasma apparatus 100 of FIG. 1 (a) comprises a head unit 200 and a body unit 300.

A high voltage electrode 210 is provided under the dielectric layer in the head part 200. The human skin contacts the dielectric layer 220 on the high voltage electrode to generate plasma.

A protruding wall is provided at the periphery of the planar high voltage electrode 210 so that plasma is generated in the space between the electrode surface and the skin due to skin contact.

A high-voltage power supply unit and a secondary battery are built in the body part 300, and a ground pad having a surface-shaped pad electrode is provided on the surface of the body part. The first terminal of the secondary coil of the transformer is applied to the high voltage electrode 210 and the second terminal is connected to the ground electrode of the ground pad. By grounding the ground pad on the surface of the body by hand, the voltage of the ground electrode is lowered, and the plasma is generated by inducing a high voltage to the high voltage electrode.

At this time, a high voltage is induced in the high voltage electrode 210 when the skin of the hand contacts the ground pad in a manner that the ground pad is held by hand. If the area of the hand touching the grounding pad is small or the grounding pad is wrapped around the glove of the insulating material, the grounding pad is not functioning and the voltage induced on the high-voltage electrode surface is lowered, do.

1 (b) is a variation of the voltage V1 of the first terminal applied to the high voltage electrode 210 according to the action of the ground pad 360 and the voltage V2 of the second terminal connected to the ground pad electrode. Voltage V1 and V2 are induced in inverse proportion to the ground pad electrode area and the high voltage electrode area when the ground pad is not held by hand (Fig. 1 (b) - (i)).

In general, when two capacitors C1 and C2 are connected in series to a power supply having a voltage Vo, the voltages applied to the respective capacitors are V1 = VoC2 / (C1 + C2) and V2 = VoC1 / (C1 + C2). 1 (a), the capacitances C1 and C2 of the high-voltage electrode having the area S1 and the ground pad electrode having the area S2 are proportional to the area, so that the voltage of each electrode is V1 = VoS2 / (S1 + S2) and V2 = VoS1 / (S1 + S2).

 1 (b) - (i), the electrode surface of the ground pad is made wider than the area of the high voltage electrode, and the voltage V1 of the high voltage electrode becomes somewhat larger than the voltage V2 of the pad electrode. However, since a voltage V2 of a considerable magnitude is induced in the grounding pad and the voltage of V1 is not induced to a high voltage of a sufficient magnitude, plasma is not generated well on skin contact at the surface of the high voltage electrode. When the skin touches only a part of the grounding pad of Fig. 1 (b) - (ii), the voltage of V1 slightly rises. However, the voltage of V1 does not induce a sufficient voltage to generate plasma. Figures 1 (b) - (iii) illustrate the case where a ground pad is hand-held and a substantial area of the ground pad touches the skin. At this time, V1 induces a sufficient voltage that a plasma can be generated. However, the voltage V2 of the ground pad is considerably small, but still has a constant magnitude of voltage and therefore acts as a power loss.

If the high voltage electrode 210 is on the other hand, the voltage applied to the ground pad is increased to increase the power consumption as well as the electric shock.

Therefore, in order to solve the problem of the conventional ground pad, the present invention proposes a bipolar ground pad as follows.

FIG. 2 is a schematic diagram of a portable plasma apparatus for treating skin beauty and skin diseases, which has a curved electrode head according to the present invention, an ozone sucking treatment apparatus, and a bipolar ground pad, and is a graph of voltage induced in a high voltage electrode by the action of a ground pad.

The plasma apparatus 100 includes a head unit 200 and a body unit 300, which may be integrally manufactured.

The head portion 200 is provided with a high-voltage electrode 210 on the back surface of the dielectric layer. The human skin contacts the dielectric layer 220 covering the high-voltage electrode 210, and plasma is generated.

The ozone generated by the plasma generation is sucked into the body through the ozone inlet port 230 by the fan 310. The ozone inlet 230 is provided by a gap between the head housing and the high-voltage electrode covered by the dielectric layer. Or pores may be formed in the high-voltage electrode and the dielectric layer.

Inside the body, a fan 310, a carbon filter 330 for neutralizing the inhaled ozone, a power supply unit 340 for generating a high voltage, a secondary battery 350, and a bipolar ground pad are installed as an ozone suction device.

The bipolar ground pad 400 includes a first-pad electrode 401 and a second-pad electrode 402, which are opposed to each other,

The first-pad electrode is connected to a second terminal of the high-voltage power supply,

The second-pad electrode is connected to the metal surface 413 covering the surface of the switch 410 installed on the surface of the body by a connection line 415. The metal surface 413 may be the case where the switch itself may be a conductor and the surface of the switch is coated with a conductor such as conductive carbon, graphene, such as graphite, including metal.

The switch terminal-411 and the switch terminal-2 412 are connected to the connection terminal-1 351 and the connection terminal-2 352 of the secondary battery, respectively.

The switch is connected to the power supply of the secondary battery by closing the switch terminal-1 (411) and the switch terminal-2 (412) by skin contact or pressing by the conductor.

At this time, due to skin contact, the voltages of the first-pad electrode and the second-pad electrode become almost 0 V, while most of the power source voltage is induced in the high-voltage electrode 210, A plasma is generated.

According to the present invention, since the voltage induced in the high-voltage electrode rises due to the use of the bipolar ground pad, the power consumption of the secondary battery is reduced. Therefore, the use time of the portable device is increased and the frequency of cumbersome charging of the secondary battery during use is reduced.

3 is a schematic view of a plasma apparatus having a skin lifting function employing an air pump.

Here, the air pump 320 is used as the ozone suction device, and a blocking film 240 is provided on the head. The barrier is made of waterproof material and consists of commercialized Tyvek (brand name: Tyvek ⓡ) or waterproof cloth. The barrier is air-tight and moisture is cut off. The barrier is installed so that the high voltage electrode and the dielectric layer covering it are separated from other spaces.

When the human skin contacts the outer frame of the head portion, a low pressure space 250 is formed by air suction by a air pump in a space between the skin and the shielding film 240, lifting the human skin. This low pressure space also facilitates plasma discharge.

The action of the bipolar ground pad is the same as in Fig.

Fig. 4 is another feature of the present invention in that a semi-circular cylindrical shape (a), a hemispherical shape (b), and a tapered shape (c) are used as the curved shape of the electrode surface contacting the skin of the head.

Such a curved electrode facilitates the generation of plasma by providing a pressing effect of the skin and a plasma discharge space at the time of skin contact.

5 is a face-to-face plasma generator having a high-voltage electrode 210 having a plurality of curved surfaces by applying a bipolar ground pad according to the present invention.

In the present embodiment, two curved high-voltage electrodes 210 are provided in the head portion, and ozone is sucked by the air pump through the shielding film.

The metalized switch is connected to the second pad electrode of the bipolar ground pad and the first pad electrode is connected to the second terminal of the transformer secondary coil of the power supply.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood that the invention may be practiced otherwise than as described. It is therefore to be understood that the embodiments described above are in all respects illustrative and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: plasma apparatus, 200: head, 300: body,
210: high voltage electrode, 220: dielectric layer, 230: ozone inlet port, 240: blocking membrane, 250:
The present invention relates to a fuel cell system and a method of manufacturing the same and a method of manufacturing the same.
341: transformer, 342: first terminal, 343: second terminal, 344: switching circuit, 345: converter
351: Secondary battery connection terminal -1, 352: Secondary battery connection terminal -2
361: pad dielectric layer-1, 362: pad dielectric layer-2, 363: pad metal electrode
400: dipole ground pad, 401: first-pad electrode, 402: second-pad electrode
410: switch, 411: switch terminal-1, 412: switch terminal-2, 413: switch metal surface, 415:

Claims (5)

A plasma skin treatment apparatus comprising:
A head portion for emitting plasma in proximity to the skin; And
And a body extending from the head portion,
Wherein:
A high voltage electrode connected to a power source to emit a plasma; And
And a dielectric layer covering the high voltage electrode to directly contact the skin,
The body portion
battery;
A transformer for boosting a voltage of the battery; And
A second pad electrode disposed apart from the first pad electrode and the first pad electrode and a dielectric layer surrounding the first pad electrode and the second pad electrode,
A switch having a conductor surface on the outer wall of the body part,
A high-voltage electrode of the head portion is connected to a first terminal of the transformer,
The first pad electrode of the bipolar ground pad is connected to the second terminal of the transformer,
The second pad electrode is connected to the conductor surface of the switch,
The switch is pressed to apply power to the high voltage electrode,
When the skin or other conductor touches the surface of the conductor of the switch and the skin touches the dielectric layer covering the high voltage electrode, the voltage outputted to the high voltage electrode is higher than the voltage outputted to the electrode side of the polarity ground pad, The plasma skin treatment apparatus comprising: The head according to claim 1, wherein the high-voltage electrode and the dielectric layer covering the high-voltage electrode are disposed, the gap having a gap through which air can communicate,
Said body portion comprising a fan or an air pump;
A carbon filter installed at the rear end of the fan or air pump;
And an air outlet,
Wherein the ozone generated by plasma generation is sucked into the ozone to be oxygenated and discharged to the air discharge port, and skin lifting is performed by the suction. The plasma display panel of claim 2, further comprising a shielding film separating the high-voltage electrode and the dielectric layer covering the high-voltage electrode from another space, wherein the shielding film is made of a waterproof material through which air is communicated and moisture is shielded,
Wherein a pressure of a space formed by skin contact with the barrier membrane and the housing of the head unit is lowered due to the operation of the fan or the air pump, thereby improving the plasma discharge and improving the skin lifting. The plasma skin treatment apparatus according to claim 1, wherein the shape of the dielectric layer surface covering the high-voltage electrode of the head portion is a curved surface, and a convex or concave surface is formed on the skin surface to obtain a skin pressing or skin lifting effect. . 5. The plasma skin treatment apparatus according to claim 4, wherein the head portion includes a plurality of high-voltage electrodes and a plurality of curved dielectric layers covering the electrodes.

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