Beauty device

Abstract

The present invention relates to a beauty device comprising: a main body; an operation unit that is provided in the main body and contacts the skin to deliver electrical power; a power supply unit storing electrical power; and a control unit that is provided in the main body and controls the operation unit, wherein the operation unit is provided to apply two or more mechanisms to the skin, and the control unit controls the operation unit to alternately output the two or more mechanisms to maintain a degree of power reduction of the power supply unit within a preset range.

Description

beauty devices

[0001] The present invention relates to a beauty device.

[0002] Human skin can be contaminated by external activities, and wrinkles can form due to aging, hormonal changes, and other factors. With the recent rise in interest in skin care, cleansing devices capable of effectively removing skin contaminants, as well as various devices for skin beauty and anti-aging, are being developed.

[0003] For example, devices that provide high-frequency and infrared energy to the skin are being developed. These devices apply thermal energy to the skin, and by applying thermal energy to the skin, they can improve the elasticity of the applied skin area or effectively deliver beauty products into the skin.

[0004] In addition, devices that deliver sound waves and light to the skin are being developed. For example, sonophoresis and laserporation devices are being developed that utilize ultrasound or laser light to deliver cosmetic products into the skin. These devices can create pathways for the injection of cosmetics into the skin using ultrasound or laser light, thereby increasing the penetration rate of cosmetic products.

[0005] In addition, devices that physically deliver cosmetic products to the skin using low current are being developed. For example, these devices utilize iontophoresis, electroporation, and electroosmosis, and are capable of effectively delivering active ingredients into the skin by applying current to charged or neutral cosmetic products.

[0006] In other words, various devices capable of providing skin care and anti-aging functions using light energy, sound waves, electric current, vibration, etc., are being developed.

[0007] Regarding the various devices used in this manner, various demands for improvement are emerging in terms of their effectiveness for skin care, power efficiency, and the combined application of different mechanisms.

[0008] The present invention was created to solve the problems of the prior art as described above, and the objective of the present invention is to provide a beauty device that appropriately regulates the energy delivered to the skin by implementing control that takes into account the loop resistance of the skin, which varies depending on whether cosmetics are applied.

[0009] In addition, the objective of the present invention is to provide a beauty device capable of reducing battery consumption and producing maximum efficiency output by alternately outputting different mechanisms.

[0010] In addition, the objective of the present invention is to provide a beauty device that allows a user to conveniently apply a mechanism to the skin through electrodes and apply a massage function to the skin through physical pressure while holding the beauty device.

[0011] The problems of the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

[0012] A beauty device according to one aspect of the present invention comprises: a main body; an operating part provided on the main body and transmitting power in contact with the skin; a power supply part storing power; and a control part provided on the main body and controlling the operating part, wherein the operating part is provided to apply two or more types of mechanisms to the skin, and the control part controls the operating part to alternately output two or more types of mechanisms to maintain the degree of reduction in the power amount of the power supply part within a preset range.

[0013] Specifically, the above-described working part applies at least an electroporation mechanism among electroporation, ultrasound, and high frequency to the skin using one of the above-described power parts, and in addition to electroporation, may apply ultrasound having two or more frequencies or high frequency having two or more frequencies to the skin.

[0014] Specifically, the device further includes a sensing unit for sensing the temperature of the skin, and the control unit controls the working unit to alternately output two or more mechanisms so that the temperature of the skin contacted by the working unit can be maintained within a preset range.

[0015] Specifically, the control unit controls the action unit to alternately output two or more mechanisms and time-division outputs, thereby maintaining the temperature of the skin contacted by the action unit within a preset range.

[0016] Specifically, the control unit can drive the operating unit in at least one of a boosting mode in which one mechanism is continuously output during a first time period without time division, and a normal mode in which two or more mechanisms are output in a time-division pattern.

[0017] Specifically, the control unit may change the frequency of the ultrasonic or high frequency output by the operating unit according to the degree of reduction in the power amount of the power supply unit.

[0018] Specifically, the system further includes a sensing unit that detects vibrations of the skin and generates an electrical signal, and the control unit can delay the operation of the acting unit until the point at which the electrical signal from the sensing unit is confirmed to be no signal when switching the mechanism of the acting unit.

[0019] Specifically, the control unit can raise or lower the power level while the operating unit is operating as one of the mechanisms, or raise or lower the power level when switching the mechanism of the operating unit.

[0020] Specifically, the device further includes a sensing unit that detects whether the working part contacts the skin based on the impedance level at the working part, and the control unit can adjust a time division pattern for two or more types of mechanisms according to the detection result of the sensing unit.

[0021] The beauty device according to the present invention ensures beauty efficacy by controlling the energy delivered to the skin relatively uniformly, and can reduce battery power consumption while outputting two or more types of mechanisms.

[0022] In addition, the beauty device according to the present invention can improve its shape so that the user can conveniently use the mechanism action and gua sha function through the electrode.

[0023] The effects of the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art from the description in the claims.

[0024] FIG. 1 is a perspective view of a beauty device according to a first embodiment of the present invention in which the electrode faces upward and the gua sha part faces forward.

[0025] FIG. 2 is a side view of a beauty device according to the first embodiment of the present invention in which the gua sha part is facing sideways.

[0026] FIG. 3 is a perspective view of a beauty device according to the first embodiment of the present invention in which the electrode faces upward and the gua sha part faces backward.

[0027] FIG. 4 is an enlarged partial perspective view of a portion in which an electrode is provided in a beauty device according to the first embodiment of the present invention.

[0028] FIG. 5 is a partially exploded perspective view taken from the front, showing the interior of the gua sha part in a beauty device according to the first embodiment of the present invention after a part of the gua sha part has been disassembled.

[0029] FIG. 6 is a partially exploded perspective view taken from the rear, showing the interior of the gua sha part in a beauty device according to the first embodiment of the present invention after a part of the gua sha part has been disassembled.

[0030] FIG. 7 is a plan view of the charging part of a beauty device according to the first embodiment of the present invention.

[0031] FIG. 8 is a plan view showing the charging of a beauty device according to the first embodiment of the present invention.

[0032] FIG. 9 is a perspective view showing the charging of a beauty device according to the first embodiment of the present invention.

[0033] FIG. 10 is a perspective view of a beauty device according to the first embodiment of the present invention in which the electrode faces upward and the gua sha part faces backward.

[0034] FIG. 11 is a block diagram of a beauty device according to a first embodiment of the present invention.

[0035] FIG. 12 is a partial block diagram of the configuration including the sensing unit in a beauty device according to the first embodiment of the present invention.

[0036] FIG. 13 is a partial block diagram of the configuration including the working part in a beauty device according to the first embodiment of the present invention.

[0037] FIG. 14 is a circuit diagram of a beauty device according to a first embodiment of the present invention.

[0038] FIG. 15 is a diagram showing the pattern of the electromotive force voltage controlled by the control unit in a beauty device according to the first embodiment of the present invention.

[0039] FIG. 16 is a diagram illustrating the concept of a control unit alternately controlling two or more mechanisms in a beauty device according to a second embodiment of the present invention.

[0040] FIG. 17 is a diagram illustrating the concept of a control unit implementing alternating control by changing the frequency for one mechanism in a beauty device according to a second embodiment of the present invention.

[0041] FIG. 18 is a diagram illustrating the concept of a control unit alternately controlling power levels for two or more mechanisms in a beauty device according to a second embodiment of the present invention.

[0042] FIG. 19 is a diagram illustrating the timing in which a control unit alternately controls two or more mechanisms in a beauty device according to a second embodiment of the present invention.

[0043] The objects, specific advantages, and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments in conjunction with the accompanying drawings. It should be noted that in assigning reference numerals to the components of each drawing in this specification, identical components are assigned the same number whenever possible, even if they are shown in different drawings. Furthermore, in describing the present invention, detailed descriptions of related prior art are omitted if it is determined that such detailed descriptions would unnecessarily obscure the essence of the invention.

[0044] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

[0045] FIG. 1 is a perspective view of a beauty device according to the first embodiment of the present invention in which the electrode faces upward and the gua sha part faces forward, FIG. 2 is a side view of a beauty device according to the first embodiment of the present invention in which the gua sha part faces sideways, and FIG. 3 is a perspective view of a beauty device according to the first embodiment of the present invention in which the electrode faces upward and the gua sha part faces backward.

[0046] In addition, FIG. 4 is an enlarged partial perspective view of a portion where an electrode is provided in a beauty device according to the first embodiment of the present invention, FIG. 5 is a partially exploded perspective view viewed from the front showing a state in which a part of the gua sha part is disassembled and the interior of the gua sha part is shown, FIG. 6 is a partially exploded perspective view viewed from the rear showing a state in which a part of the gua sha part is disassembled and the interior of the gua sha part is shown.

[0047] In addition, FIG. 7 is a plan view of the charging part of a beauty device according to the first embodiment of the present invention, FIG. 8 is a plan view showing the charging of a beauty device according to the first embodiment of the present invention, FIG. 9 is a perspective view showing the charging of a beauty device according to the first embodiment of the present invention, and FIG. 10 is a perspective view of a beauty device according to the first embodiment of the present invention in which the electrode faces upward and the gua sha part faces backward.

[0048] In addition, FIG. 11 is a block diagram of a beauty device according to a first embodiment of the present invention, FIG. 12 is a partial block diagram of a configuration including a sensing part in a beauty device according to a first embodiment of the present invention, and FIG. 13 is a partial block diagram of a configuration including an operating part in a beauty device according to a first embodiment of the present invention.

[0049] In addition, FIG. 14 is a circuit diagram of a beauty device according to a first embodiment of the present invention, and FIG. 15 is a diagram showing the pattern of the electromotive force voltage controlled by the control unit in the beauty device according to the first embodiment of the present invention.

[0050] Referring to FIGS. 1 to 15, a beauty device (1) according to the first embodiment of the present invention is a tool that implements a beauty function by contacting the skin, and includes a main body (10), an operating part (20), a gua sha part (30), a power supply part (40), a control part (50), a sensing part (60), a charging part (70), etc.

[0051] The main body (10) forms the part that the user holds. The main body (10) may be equipped with an operating part (20), a gua sha part (30), a power supply part (40), a control part (50), a sensing part (60), etc., which will be described later, and some of the components, such as the operating part (20) and the gua sha part (30), may be provided to be exposed to the outer surface of the main body (10).

[0052] The main body (10) may have a rod shape that allows the user to grip it conveniently and stably. In this case, the length direction of the main body (10) may also be interpreted as the height direction, etc. The main body (10) may have the shape of a rod with a circular cross-section, and the cross-section may have a relatively constant shape along the length direction. Of course, to improve the user's grip, the cross-section of the main body (10) may change along the length direction, and for example, the main body (10) may have a curved structure on which fingers, etc. can rest.

[0053] The main body (10) may form a handle (11) that at least a portion of which can be grasped by the user. The main body (10) may have the shape of a rod with a circular cross-section, and an operating part (20) and a gua sha part (30), etc., may be provided on the upper part of the main body (10). In this case, the user can use the beauty device (1) while holding the lower part of the main body (10).

[0054] In the case of some publicly known beauty devices, they have an overly complex appearance due to a focus on multifunctionality, which results in unnatural usage and requires users to do a lot of learning to use the product. On the other hand, the main body (10) of the present invention is designed based on user behavior analysis, so that behavior can be induced by design elements even without the user learning how to use the product. That is, the main body (10) has a rod shape that the user can intuitively hold and use, thereby allowing the user to learn how to use it comfortably and intuitively.

[0055] In particular, the main body (10) can be configured so that the user can selectively use the working part (20) and the gua sha part (30) without changing the gripping method while holding the handle (11). That is, while holding the lower part of the main body (10), the user can bring the working part (20) into contact with the skin or bring the gua sha part (30) into contact with the skin without changing the gripping method.

[0056] The main body (10) may be provided with a display unit (not shown in the symbol). The display unit may display the operating status of the operating unit (20), the charging status of the power supply unit (40), etc. The display unit may include an LED, etc. provided in the main body (10).

[0057] The main body (10) may be provided with a charging terminal (not shown) for charging a power supply unit (40) provided inside. The charging terminal may be positioned on the lower side of the main body (10), far from the operating unit (20) or the gua sha unit (30). Additionally, as will be described later, the main body (10) may be formed with a structure that allows the power supply unit (40) to be charged via wireless charging, such as by electromagnetic induction, while mounted on the charging unit (70).

[0058] The action part (20) is provided on the main body (10) and transmits power by contacting the skin. The action part (20) is provided on one side of the main body (10) and may be exposed to the outside. The action part (20) can apply one or more mechanisms to the skin; for example, the action part (20) can apply mechanisms such as electroporation (EP), ultrasound (US), and radio frequency (RF) to the skin.

[0059] The working part (20) may include an electrode (21) that contacts the skin and transmits power to the skin. The electrode (21) is provided so that its polarity can be changed by the control part (50), and two or more electrodes may be provided in a spaced-apart configuration.

[0060] The working part (20) can apply two or more types of mechanisms to the skin using two or more electrodes (21). For example, an electroporation mechanism can be applied to the skin through one electrode (21), and an ultrasonic mechanism can be applied to the skin through another electrode (21). The working part (20) can achieve various cosmetic effects by utilizing two or more electrodes (21) and two or more types of mechanisms.

[0061] When the working part (20) applies the electroporation mechanism to the skin, the skin may have an active ingredient applied to it. That is, the working part (20) may come into contact with the skin in a state where the active ingredient is not applied or where the active ingredient is applied.

[0062] The working portion (20) may be provided on the upper surface of the main body (10). The working portion (20) is formed on the upper surface of the main body (10) which includes a cylindrical rod-shaped handle (11), but may be provided at an angle other than 90 degrees with respect to the longitudinal centerline of the handle (11). That is, the working portion (20) may be provided at an angle relative to the lower surface of the handle (11). Due to this arrangement, the entire surface area of ​​the working portion (20) can easily come into contact with the skin while the user is gripping the lower part of the handle (11).

[0063] The working part (20) may include a first electrode (21a), a second electrode (21b), etc. The first electrode (21a) may be provided at the center on the surface of the working part (20). The first electrode (21a) may be provided at the center of the longitudinal centerline of the handle (11). That is, the center of the first electrode (21a) may be parallel to the longitudinal center of the handle (11). The first electrode (21a) may be a circular shape placed on the longitudinal centerline of the handle (11), and the first electrode (21a) may be provided at a certain angle relative to a flat cross-section perpendicular to the longitudinal direction of the handle (11). As the working part (20) is positioned at an angle relative to the handle (11), the size of the first electrode (21a), etc. can be sufficiently secured.

[0064] Of course, the shape of the first electrode (21a) is not limited to the circular shape shown in the drawing, and the first electrode (21a) may also be formed in a ring shape. Furthermore, the first electrode (21a) may be formed in a shape that includes two or more electrodes (21) that are spaced apart from each other and are arranged adjacently, and for example, the first electrode (21a) may include a plurality of semicircular or arc-shaped electrodes (21).

[0065] The second electrode (21b) may be arranged to surround the first electrode (21a). The second electrode (21b) may be spaced apart from the first electrode (21a) and arranged in a substantially concentric shape. That is, the center of the second electrode (21b) and the center of the first electrode (21a) may be parallel.

[0066] However, the second electrode (21b) may have a non-circular shape with one side pointed toward the end of the gua sha part (30). That is, the second electrode (21b) may be provided in a teardrop shape, and the distance from the first electrode (21a) may be maintained at a constant level except for the pointed part forming the vertex. Alternatively, the left and right parts of the teardrop-shaped second electrode (21b) may be positioned closest to the first electrode (21a) based on the teardrop shape, and the distance from the first electrode (21a) at the bottom part may be relatively larger compared to the left and right parts. Of course, the distance from the first electrode (21a) may be formed largest at the top part, which is the pointed part of the teardrop. In this way, by having a teardrop shape, the second electrode (21b) can induce detailed management of a minute area through the pointed part.

[0067] One or more second electrodes (21b) may be provided. That is, droplet-shaped second electrodes (21b) may be spaced apart around the circumference of a circular first electrode (21a). However, the droplet-shaped electrode (21) provided on the outer side of the first electrode (21a) may be defined as the second electrode (21b), and the electrode (21) provided on the outer side of the second electrode (21b) may be defined as the third electrode (21c). As shown in the drawing, the working part (20) may include a circular first electrode (21a), a droplet-shaped second electrode (21b), and a droplet-shaped third electrode (21c). However, the third electrode (21c) may be omitted depending on the mechanism implemented by the working part (20). Alternatively, it is possible to provide a fourth electrode (21) around the circumference of the third electrode (21c).

[0068] Alternatively, unlike what is shown in the drawing, it is also possible to arrange a V-shaped second electrode (not shown) and an arc-shaped third electrode (not shown) so as to be spaced apart from each other around a circular first electrode (21a). That is, a teardrop-shaped electrode (21) can be formed by dividing it into a second electrode and a third electrode, and in this case, the second electrode and the third electrode can output different polarities or mechanisms as they are spaced apart.

[0069] A rim (22) may be provided around one or more second electrodes (21b) in the working part (20). The rim (22) may be provided on the outer side of the teardrop-shaped electrode (21). The rim (22) may have a teardrop shape, and the portion of the rim (22) that forms an arc shape may be provided parallel to the side of the main body (10) vertically. That is, the main body (10) and the working part (20) can be continuously and smoothly connected without any step.

[0070] Alternatively, the working part (20) may be provided with an electrode (21) arranged as in FIG. 10, unlike FIG. 1. Referring to FIG. 10, the first electrode (21a) in the working part (20) may be circular and may have a shape that protrudes slightly from the surface of the working part (20).

[0071] The first electrode (21a) may be arranged to protrude relatively more compared to the other electrodes (21b, 21c). Alternatively, the electrode (21) of the working part (20) may have a shape in which only the first electrode (21a) protrudes. In this case, the portion excluding the first electrode (21a) may be formed by a single electrode plate and divided into the second electrode (21b) and the third electrode (21c), etc., by an insulating strip, etc.

[0072] Additionally, the second electrode (21b) is provided to surround the first electrode (21a), and an insulating portion may be formed between the first electrode (21a) and the second electrode (21b). Unlike the one shown in FIG. 10, the second electrode (21b) shown in FIG. 10 may be provided in a circular shape to form a concentric circle with the first electrode (21a). For example, the first electrode (21a) may be a circular shape with a filled interior, and the second electrode (21b) may be provided in the shape of a ring with a hollow interior.

[0073] At this time, the second electrode (21b) may be provided in one or more ways. One of the second electrodes (21b) may be provided in the form of a ring surrounding the first electrode (21a), and the other second electrode (not shown in the symbol) may be formed in the shape of a V or a triangle.

[0074] A plurality of second electrodes (21b) may be spaced apart from each other and surrounded by a teardrop-shaped third electrode (21c). Additionally, an insulating portion may be formed between the second electrode (21b) and the third electrode (21c).

[0075] In the working portion (20), the third electrode (21c) may be provided in a teardrop shape. The third electrode (21c) shown in FIG. 10 may be provided similarly to that described in FIG. 1. However, the circumference of the third electrode (21c) may have a size that corresponds substantially to the periphery of the main body (10).

[0076] In this case, the rim (22) of the working part (20) may be provided on the lower side of the teardrop-shaped third electrode (21c). The rim (22) can electrically disconnect the upper part of the main body (10) from the working part (20). Additionally, the rim (22) may be provided between the working part (20) and the gua sha part (30), thereby restricting the flow of electricity from the third electrode (21c) to the gua sha part (30).

[0077] In addition, the working part (20) may include electrodes of various shapes or arrangements to apply the mechanism to the skin. However, the electrode provided at the outermost edge among the electrodes (21) of the working part (20) may have a teardrop shape considering the shape of the main body (10) to which the gua sha part (30) is combined.

[0078] The electrode (21) of the working part (20) transmits electricity to the skin while in contact with the skin, and can form an electrical path within the skin based on the polarity of the electrodes (21). When the working part (20) comes into contact with the skin, an electrical loop can be formed, and whether the working part (20) is in contact with the skin can be detected based on the resistance or impedance within the loop. This will be explained again below in the sensing part (60).

[0079] The electrode (21) provided in the working part (20) may form a closed curve shape, and the first electrode (21a) and the second electrode (21b), etc., may be spaced apart from each other to apply different polarities to the skin. In this case, the spaced-apart portion may be recessed relative to the surface of the electrode (21) that contacts the skin. Additionally, if the first electrode (21a) is provided in a ring shape, the central portion of the first electrode (21a) may have a recessed shape.

[0080] When the working part (20) comes into contact with the skin, the recessed portion may be spaced apart from the surface of the skin. That is, when the electrode (21) comes into contact with the skin, the space between the first electrode (21a) and the second electrode (21b), and the central portion of the ring-shaped first electrode (21a), etc., may form a chamber surrounding the skin. The working part (20) can regulate pressure on this chamber.

[0081] For example, the working part (20) may be configured to blow a fluid, such as air, into the recessed part or to suck in a fluid. In this case, the working part (20) can apply an electroporation mechanism to the skin through the electrode (21) and, at the same time, apply pressure to / depressurization to the skin through pressure control of the chamber.

[0082] That is, the working part (20) applies a mechanism such as electroporation to skin placed under a pressure different from atmospheric pressure. Electroporation is a method of increasing the permeability of active ingredients by forming gaps through the application of electrical pulses to skin layers (cells) in a non-invasive manner. The working part (20) utilizes a chamber to maintain cells under a pressure different from atmospheric pressure on the skin to which the electroporation mechanism is applied, allowing active ingredients to easily permeate through the cavities between cells. Therefore, the working part (20) can improve the delivery efficiency of active ingredients by electroporation into cells and tissues having cell walls.

[0083] For reference, the working part (20) can be depressurized to a pressure 0.02 MPa to 0.1 MPa lower than atmospheric pressure, and conversely, can be pressurized to a pressure 0.02 MPa to 0.1 MPa higher than atmospheric pressure. In addition, the pressurization / depressurization and the application of the electroporation mechanism by the electrode (21) can be performed simultaneously or separately. For example, the pressurization and the electroporation mechanism can be applied simultaneously, and the depressurization and the electroporation mechanism can be applied sequentially at different times.

[0084] In order to utilize the recessed portion as a chamber, the working portion (20) has a hole (not shown) formed in the recessed portion, and a pumping member (not shown) provided inside the main body (10) can be connected to the hole. Additionally, the working portion (20) can come into contact with the skin while the active ingredient is applied to the skin, and when reduced pressure is applied, the active ingredient may not be inhaled through the hole, or even if inhaled, it may be filtered out.

[0085] For example, the working part (20) may apply a filter (not shown) to the suction hole for applying depressurization so that the active ingredient does not enter the hole. However, the working part (20) may remove the active ingredient trapped in the filter by pushing it toward the skin by repeating depressurization and pressurization at regular intervals in case the active ingredient blocks the filter and interferes with suction.

[0086] Alternatively, the active ingredient can be filtered by applying a partition structure, such as a zigzag shape, that separates gas and liquid on the path where air enters through the hole, and the filtered active ingredient can be delivered back to the skin through a separate path or released to the outside through a separate outlet.

[0087] The working part (20) can be structurally connected to the gua sha part (30). In this embodiment, an electrical mechanism can be applied to the skin by the working part (20) and a massage can be applied to the skin through the gua sha part (30), and the working part (20) can be provided on the upper surface of the main body (10) and the upper surface of the gua sha part (30).

[0088] The working part (20) has a shape in which one side is bluntly formed corresponding to the side of the main body (10) in the shape of a circular rod, and the other side is pointed corresponding to the gua sha part (30) protruding from the side of the main body (10). That is, the working part (20) can form a teardrop shape, the circular part can be placed on the upper surface of the handle (11), and the pointed protruding part can be placed on the upper surface of the gua sha part (30). As will be described later, the gua sha part (30) has a shape in which its width decreases as it moves away from the handle (11) to apply pressure to the skin, and the working part (20) is provided on the upper surface of the handle (11) and on the upper surface of the gua sha part (30) protruding from the upper part of the handle (11), so that it can form a pointed shape toward the end of the gua sha part (30).

[0089] The working part (20) may form a continuous shape with the gua sha part (30), and the working part (20) may be provided with a connecting part (23) that engages with the gua sha part (30). The connecting part (23) is provided on the bottom surface opposite to the surface in contact with the skin in the working part (20), and may protrude downward from the bottom surface of the working part (20). The connecting part (23) may be positioned on one side adjacent to the working part (20) (upward with respect to FIG. 5) at the fixed part (31) included in the gua sha part (30), and may engage with the pressing part (32) included in the gua sha part (30). Thus, the working part (20) and the gua sha part (30) may be assembled so that the gap between them is minimized.

[0090] The gua sha portion (30) is provided to protrude from the main body (10) around the working portion (20) and applies pressure to the skin. The gua sha portion (30) may be provided to surround at least a portion of the upper part of the main body (10). The gua sha portion (30) is provided in a form that protrudes with decreasing width from the side of the upper part of the main body (10), and the flat cross-section may form a V-shape or a U-shape.

[0091] Based on FIG. 1, the lower part of the main body (10) may correspond to the handle (11), and the gua sha part (30) may be provided above the handle (11) on the main body (10). At this time, the handle (11) may be extended in one direction (up and down direction based on FIG. 1), whereas the gua sha part (30) may be extended from the main body (10) in the other direction (left and right direction based on FIG. 1).

[0092] At this time, the gua sha part (30) is positioned along the extended unidirectional line of the handle (11). Specifically, the gua sha part (30) can be positioned on the extended portion when the handle (11) is virtually extended further along the direction in which the handle (11) extends (the length direction of the handle (11)).

[0093] This gua sha part (30) may be positioned at a predetermined distance from the handle (11), and when the user holds the handle (11) and moves the main body (10), the gua sha part (30) positioned at a distance from the handle (11) can effectively provide a gua sha function by amplifying the user's force according to the principle of a lever.

[0094] For reference, the term "separated position" here does not mean only that they are structurally separated from each other, but that they are arranged at a distance from each other. That is, a handle (11) is provided on one side of the main body (10) and a gua sha part (30) is provided on the other side, and the gua sha part (30) and the handle (11) can be connected as a single unit even though they are located at a distance from each other.

[0095] This explains how the gua sha part (30) utilizes the principle of a lever to produce a gua sha effect. The principle of a lever means that if a point of force is formed at a location sufficiently far from the fulcrum, a large force can be applied to the point of application with a small force. Considering this, if the handle (11) extending along one direction is the point of force, the gua sha part (30) can be the fulcrum and point of application located sufficiently far from the handle (11). Therefore, the force applied to the skin by the gua sha part (30) becomes greater than the force applied by the user to the handle (11).

[0096] That is, since the gua sha part (30) is positioned far from the handle (11) in the main body (10), when the handle (11) acts as a point of force, a part of the gua sha part (30) (the part close to the handle (11)) can act as a fulcrum, and the remaining part of the gua sha part (30) (the part far from the handle (11)) can act as a point of application. In particular, to fully utilize the principle of a lever, the length of the gua sha part (30) is made relatively shorter relative to the length of the handle (11) with respect to the length direction of the main body (10), so that the distance between the fulcrum and the point of force is always formed to be farther than the distance between the fulcrum and the point of application. Through this, the present embodiment enables a user holding the handle (11) to perform an effective gua sha massage even with minimal force. The gua sha part (30) has a relatively long blade shape in the length direction and can form a wide blade edge. Therefore, the gua sha part (30) can enable efficient massage over a sufficient range. For example, the gua sha part (30) can be made to have a relatively long edge structure by utilizing the side space of the main body (10) so as to care for a large area of ​​skin such as the chin and neck.

[0097] The gua sha part (30) can apply pressure to a local area through a blade portion shaped like a knife blade or an axe blade. Additionally, the gua sha part (30) has a blade edge (side) with a sufficient surface area on both sides of the blade portion, and pressure can be applied to a wide area using the blade edge portion. Also, since the part of the gua sha part (30) that meets the working part (20) forms a pointed shape, pinpoint gua sha can be performed.

[0098] The gua sha part (30) having the form described in this way allows the user to perform line-shaped gua sha using the blade, surface-shaped gua sha using the blade, and point-shaped gua sha using the vertex adjacent to the working part (20).

[0099] That is, the gua sha part (30) includes at least two contact parts with different surface areas. For example, the contact parts may include a first surface area contact part at the top vertex of the gua sha part (30), a second surface area contact part corresponding to the blade of the gua sha part (30), a third surface area contact part corresponding to the blade of the gua sha part (30), etc. In this case, the surface area increases as it goes from the first surface area contact part to the third surface area contact part.

[0100] Accordingly, by utilizing the gua sha part (30) equipped with contact parts of various surface areas / shapes, the gua sha part (30) can selectively perform a gua sha function depending on the surface area of ​​the user's face. For example, the first surface area contact part or the second surface area contact part of the gua sha part (30) can be used on a part requiring intensive pressure, and the third surface area contact part of the gua sha part (30) can be used for care of a large surface area such as the jaw or neck.

[0101] In particular, the blade of the gua sha part (30) is formed to form an acute angle with the surface of the working part (20), so that gua sha can be performed more effectively by the vertex of the gua sha part (30). In addition, since a rim (22) is applied around the electrode (21) in the working part (20), contact of the electrode (21) with the gua sha point can be prevented even when applying a point-shaped gua sha.

[0102] The main body (10) provided with such a gua sha part (30) may have the gua sha part (30) and the handle (11) forming the shape of an axe. Accordingly, the user can use the gua sha part (30) or the working part (20) while holding the lower part of the main body (10). Specifically, the main body (10) allows the user to contact the working part (20) or the gua sha part (30) with the skin without changing the gripping method while holding the handle (11).

[0103] That is, by providing an operating part (20) on the upper surface of the main body (10) and a gua sha part (30) on the upper side of the main body (10), the user can selectively use the operating part (20) and the gua sha part (30) without the user having to adjust the grip of the handle (11).

[0104] Additionally, in this embodiment, convenience when using the working part (20) can be increased due to the arrangement of the gua sha part (30). For example, the user can use the device while holding the opposite side of the gua sha part (30) on the main body (10) as a handle (11), and in this case, the user can use the working part (20) as if stamping on the skin while holding the handle (11).

[0105] This action may be advantageous for maintaining or adjusting the position of the action part (20) relative to the skin. Compared to when the user grasps a point close to the action part (20) on the main body (10), when the user grasps a point far from the action part (20) on the main body (10), the degree to which the user's wrist is ergonomically bent when the action part (20) is brought into contact with the skin is reduced, which can significantly reduce discomfort or fatigue when the action part (20) is brought into contact with the skin.

[0106] In addition, since the working part (20) is positioned relatively far from the point where the user holds the main body (10), the user can easily move the position of the skin that the working part (20) contacts by slightly adjusting their hand or wrist.

[0107] Furthermore, as previously explained, the user can easily switch between using the operating part (20) and the gua sha part (30) while maintaining a state of holding one point of the main body (10) as a handle (11).

[0108] For example, the user may apply the working part (20) to a first point on the skin while holding the main body (10), and may also apply the gua sha part (30) to a first point on the skin by simply lifting the end of the main body (10) where the working part (20) is provided, without re-holding the main body (10). Thus, while holding the handle (11), the user may bring the working part (20) into contact with the skin by stamping it, or bring the gua sha part (30) into contact with the skin by striking it with an axe.

[0109] Alternatively, the user can transmit an electric current by contacting the working part (20) to a first point on the skin while holding the handle (11) of the main body (10), and induce a gua sha effect by contacting the gua sha part (30) to a second point on the skin without holding the handle (11) again. At this time, the first point and the second point may be adjacent points or sufficiently separated points. That is, the present embodiment can greatly increase user convenience in the combined use of the working part (20) and the gua sha part (30).

[0110] In addition, to explain from another perspective, the present embodiment can most preferably produce a gua sha effect according to the gua sha part (30) when the user holds the handle (11) to use the working part (20). Since the gua sha part (30) is provided in the form of a blade on one side adjacent to the working part (20), a sufficient distance is created between the point where the user holds the handle (11) to contact the working part (20) with the skin and the gua sha part (30). In this case, sufficient torque can be formed on the gua sha part (30) during the user's operation, so sufficient pressure can be applied to the skin through the gua sha part (30).

[0111] The gua sha part (30) may include a fixed end (31) fixed to the main body (10) and a pressure end (32) coupled to the fixed end (31). The fixed end (31) is provided on one side (upper side in FIG. 5) of the handle (11) and may have a supporting structure function to support the pressure end (32). The fixed end (31) may be spaced apart from the working part (20) in the vertical direction (length direction of the main body (10)) in FIG. 5, and the working part (20) may have a coupling end (23) between it and the fixed end (31).

[0112] The fixed end (31) may form a shape that protrudes laterally from the upper part of the main body (10). This fixed end (31) may be arranged vertically parallel to a part (pointed part) of the second electrode (21b). Additionally, the fixed end (31) may be arranged in a shape that is recessed from the surface of the main body (10), thereby minimizing the step difference between the surface of the pressure end (32) coupled to the fixed end (31) and the surface of the main body (10). For example, the outer surface of the pressure end (32) may be continuously connected to the surface of the main body (10) without any step difference.

[0113] The fixed end (31) may have a V-shaped or U-shaped cross-section and may be provided with a locking projection (311) and a slit (312) on both sides for connection with the pressure end (32). The locking projection (311) and the slit (312) may be formed in a shape that extends continuously along the length direction of the main body (10). The fixed end (31) and the pressure end (32) may both have V-shaped or U-shaped cross-sections and may be connected by overlapping each other. At this time, the groove (321) of the pressure end (32) engages with the locking projection (311) of the fixed end (31), and the insertion end (322) of the pressure end (32) is inserted into the slit (312) of the fixed end (31), thereby firmly maintaining the state in which the fixed end (31) and the pressure end (32) overlap.

[0114] Additionally, a coupling groove (313) (or hole) may be provided in the fixed end (31), and a coupling projection (323) that is inserted into the coupling groove (313) of the fixed end (31) may be provided in the pressure end (32). As the coupling groove (313) and the coupling projection (323) interlock with each other, the pressure end (32) may be fastened to the fixed end (31).

[0115] The pressure member (32) is installed to cover the fixed member (31) and may have a V-shaped cross section to apply pressure to the skin. The pressure member (32) and the fixed member (31) may be arranged to overlap each other. As previously described, corresponding to the locking projection (311) and slit (312) provided on both sides of the fixed member (31), the pressure member (32) may have a groove (321) that engages with the locking projection (311) and an insertion member (322) that enters into the slit (312).

[0116] Additionally, the pressure member (32) may be provided with one or more connecting protrusions (323) that protrude toward the fixed member (31) on the inner surface facing the fixed member (31) at the end position where the pressure member (32) presses against the skin. Since the fixed member (31) is provided with a connecting groove (313) into which the connecting protrusion (323) is inserted on the outer surface facing the pressure member (32), when the pressure member (32) is installed overlapping the fixed member (31), the connecting protrusion (323) of the pressure member (32) can be inserted into the connecting groove (313) of the fixed member (31) and connected.

[0117] The working part (20) and the fixed part (31) may be spaced apart from each other along the height direction, and a connecting part (23) may be formed between the working part (20) and the fixed part (31). In this regard, the pressing part (32) may have an uneven part (324) formed on the part that engages with the connecting part (23). Thus, the pressing part (32) is coupled to the fixed part (31) through the slit (312) and the connecting projection (323), and engages with the connecting part (23) of the working part (20), thereby minimizing the gap between the working part (20) and the gua sha part (30).

[0118] The fixed end (31) may be provided in the vertical direction parallel to the pointed part of the second electrode (21b), and the pressing end (32) may be provided in the vertical direction parallel to the pointed part of the edge (22) of the working part (20). That is, the gua sha part (30) having the fixed end (31) and the pressing end (32) can support the teardrop-shaped pointed part of the working part (20). In addition, a cable or the like for transmitting electricity to the working part (20) may be accommodated inside the fixed end (31).

[0119] Since the gua sha part (30) has a double structure in which a fixed end (31) and a pressure end (32) are combined, the material of the pressure end (32) can be determined in various ways. For example, the fixed end (31) can be made of the same synthetic resin material as the main body (10), and the pressure end (32) can be made of a metal material. Therefore, the gua sha part (30) can provide a cooling effect to the skin through heat dissipation.

[0120] In addition, the pressure end (32) of the gua sha part (30) can apply the mechanism to the skin, just like the electrode (21) of the working part (20). That is, the pressure end (32) can be utilized as a separate electrode (21). Since the gua sha part (30) has a shape with a long edge, it can help with fine skin care by delivering radio frequency (RF), electroporation (EP), etc., to a microscopic area. Since the pressure end (32) of the gua sha part (30) comes into contact with the edge (22) of the working part (20), the electrode (21) of the working part (20) and the pressure end (32) of the gua sha part (30) can be separated from each other. Therefore, when the pressure end (32) is used as an electrode (21), if both the gua sha part (30) and the working part (20) come into contact with the skin, an electrical path can be formed between the pressure end (32) and the second electrode (21b).

[0121] The power supply unit (40) stores power. The power supply unit (40) may include a rechargeable battery. The power supply unit (40) may be positioned at the bottom within the main body (10) and may be charged via wired or wireless charging through the charging unit (70) described later.

[0122] The power from the power supply unit (40) is transmitted to the working unit (20) so that the electrode (21) applies the mechanism to the skin, and the voltage of the power transmitted from the power supply unit (40) to the working unit (20) can be adjusted. This will be explained in detail below.

[0123] The operating unit (20) can change the voltage transmitted from the electrode (21) to the skin. This is accomplished by the control unit (50) described later. However, the operating unit (20) may include a gate (24), a capacitor (25), a transformer (26), and an output node to adjust the voltage for the electrical energy transmitted from the power supply unit (40). This will be explained with reference to FIGS. 13 and FIGS. 14. In this case, the output node may be the electrode (21).

[0124] The power supply unit (40) supplies a voltage level source to the operating unit (20) operated by the control unit (50). The voltage level source supplied from the power supply unit (40) can be converted into multiple reference voltages through a divider. The voltage converted into multiple reference voltages is provided to the gate (24). The gate (24) can transmit the voltage input from the power supply unit (40) while maintaining it at a constant voltage using one or more transistors. The transistors of the gate (24) can be optionally connected to transmit the input voltage to the step node.

[0125] The operation of the transistor can be performed by a comparator (not shown in the sign) assigned to each transistor, and the comparator can operate the transistor when the voltage of the step node drops below a preset voltage so that the voltage input from the divider is directly delivered to the step node. Through this, the gate (24) can maintain a constant voltage at the step node.

[0126] The capacitor (25) is connected to the step node and can function as an energy storage device. The capacitor (25) can be arranged to be connected to each step node and stores energy delivered from the gate (24). The capacitor (25) can have specifications corresponding to the maximum voltage of the step node.

[0127] The transformer (26) can step up the voltage. The transformer (26) includes a primary winding and a secondary winding and changes the voltage according to the ratio of the primary and secondary windings. Based on FIG. 14, the primary winding is shown on the left and the secondary winding is shown on the right. The transformer (26) may be made of a single cable consisting of a plurality of separated wires and may include a core made of thin metal.

[0128] The transformer (26) may have one or more switches (not shown) so that current can be selectively transferred to the primary winding or the secondary winding. The switches are arranged to be connected in series with the capacitor (25) and can be controlled by the control unit (50).

[0129] The control unit (50) can trigger the switch assigned to the secondary winding so that the voltage of the capacitor (25) is applied to the output node. On the other hand, the control unit (50) can trigger the switch assigned to the primary winding so that the voltage of the capacitor (25) is transmitted to the transformer (26) and then applied to the output node. Alternatively, the control unit (50) can trigger both the switches assigned to the primary winding and the secondary winding to apply an additional voltage, which is the sum of the voltages of the step nodes, to the output node.

[0130] The output node is connected to the capacitor (25) and the transformer (26) and comes into contact with the skin. The output node may include the first electrode (21a) and the second electrode (21b) described above. The output node may receive the voltage of the step node and transmit it to the skin by operation of the control unit (50), or transmit the voltage passed through the transformer (26) to the skin.

[0131] The control unit (50) is provided in the main body (10) and controls the working unit (20), etc. The control unit (50) can control the mechanism by which the electrode (21) included in the working unit (20) is applied to the skin. The control unit (50) can change the mechanism of the working unit (20) and can selectively control at least one of electroporation (EP), ultrasound (US), and radio frequency (RF).

[0132] The control unit (50) may include a button (51) provided on the main body (10), and control can be implemented through a pre-assigned process as the user presses the button (51). At this time, the button (51) may be provided as a touch type or a pressure type, and at least one or more may be provided. One button (51) may control the power on / off, and the other button (51) may control the switching of the mechanism. Of course, the operation of the button (51) may not be limited to this. In addition, the button (51) may be omitted, and voice recognition or automatic operation based on skin contact may also be possible.

[0133] Of course, as the working part (20) includes two or more electrodes (21), the control part (50) may allow two or more mechanisms to be applied to the skin simultaneously by the working part (20). Alternatively, as will be explained in other embodiments below, the control part (50) may control the working part (20) so that two or more different mechanisms are applied to the skin alternately by the working part (20).

[0134] Additionally, the control unit (50) can control the electrical energy applied to the skin by the working unit (20). The control unit (50) can adjust the voltage, etc., regarding the mechanism applied to the skin by the working unit (20). The control unit (50) adjusting the voltage is as previously explained through the circuit diagram of the working unit (20). In addition to voltage, the control unit (50) can control adjustable variables among the electrical energy of the working unit (20).

[0135] The control unit (50) can change the mechanism of the action unit (20) or adjust the electrical energy, etc., that the action unit (20) delivers to the skin, by taking into account the usage state of the action unit (20). In particular, the control unit (50) can maintain the effective energy delivered to the skin by the action unit (20) at a constant level.

[0136] A liquid active ingredient may be applied to the skin that is in contact with the electrode (21) included in the working part (20). However, when the active ingredient is applied to the skin, the resistance may be lowered due to the active ingredient. If the voltage transmitted from the electrode (21) to the skin is the same before and after the application of the active ingredient, the effective energy applied to the skin may fluctuate unnecessarily, which may reduce the cosmetic effect.

[0137] To resolve this, the control unit (50) detects whether an active ingredient is applied to the skin and, based on this, adjusts the output of the working unit (20) to maintain the active energy applied to the skin relatively uniformly. When the working unit (20) comes into contact with the skin through the electrode (21), an electrical loop may be formed between the skin and the working unit (20). The control unit (50) can detect the loop resistance of the skin detected through the working unit (20) in contact with the skin and can confirm whether a liquid containing an active ingredient is provided between the skin and the working unit (20).

[0138] The control unit (50) detects that the resistance of the skin detected through the action unit (20) changes due to the active ingredient, and changes the output of the action unit (20) based on this. If the control unit (50) detects that the loop resistance of the skin has decreased as the active ingredient is applied to the skin, the output of the action unit (20) can be increased. Therefore, the control unit (50) can maintain a uniform output of effective energy applied to the skin regardless of whether the active ingredient is applied to the skin.

[0139] For example, the control unit (50) can increase the voltage of the action unit (20) when the resistance of the skin decreases due to the liquid applied to the skin, thereby maintaining the effective energy applied to the skin uniformly.

[0140] At this time, the fact that the effective energy is maintained uniformly may mean that the effective energy satisfies a preset range regardless of whether the liquid is applied or whether the amount of liquid applied increases or decreases. For example, compared to the effective energy when the liquid is not applied to the skin, the effective energy when the liquid is applied to the skin may be maintained in a range of 50 to 150% (preferably in a range of 70 to 130%).

[0141] On the other hand, when the working part (20) is rubbed while in contact with the skin, the liquid applied to the skin may decrease. In this case, if the control part (50) detects that the resistance of the skin increases due to the decrease in the liquid applied to the skin, it can lower the voltage of the working part (20) to maintain the effective energy applied to the skin within a certain range.

[0142] The control unit (50) can increase the voltage of the working unit (20) by more than double, taking into account the reduction in resistance when the liquid is applied to the skin compared to when the liquid is not applied to the skin. Of course, the value to which the control unit (50) changes the voltage of the working unit (20) is not limited to this, and can be determined by taking into account the viscosity of the liquid applied to the skin, the composition or polarity of the liquid, and the change in resistance expected due to the liquid. To this end, the control unit (50) can utilize information on the active ingredient.

[0143] The main body (10) may be provided with an input unit (not shown) for inputting information about the active ingredient or reading information about the active ingredient. The control unit (50) can appropriately control the voltage change of the action unit (20) to induce an optimal cosmetic effect by considering the information about the active ingredient confirmed through the input unit along with information about whether the active ingredient has been applied to the skin.

[0144] Additionally, the control unit (50) may utilize a humidity sensor (not shown) that may be provided in the main body (10). The control unit (50) may adjust the output of the operating unit (20) according to the humidity of the space in which the present invention is used.

[0145] The control unit (50) can selectively control the mechanism of the working unit (20) as electroporation, and the control unit (50) can adjust the pulse width of the electroporation differently according to the change in resistance of the skin that the working unit (20) contacts. In addition, the control unit (50) can output the voltage of the working unit (20) in a complex pattern.

[0146] Referring to FIG. 15, the control unit (50) controls the operating unit (20) as in (A) of FIG. 15, so that the operating unit (20) outputs a high-voltage pulse for a relatively short first time and subsequently outputs a low-voltage pulse for a second time different from the first time, and may include a delay period in which no pulse is generated between the high-voltage pulse and the low-voltage pulse.

[0147] That is, the control unit (50) can operate the electroporation mechanism of the action unit (20) according to a pattern including a high-voltage pulse of the first time - a delay period - a low-voltage pulse of the second time. A hole may be formed in the membrane by the high-voltage pulse of the first time applied by the action unit (20) to the skin cells, and the active ingredient may be effectively absorbed through the hole by the low-voltage pulse of the second time after the pulse delay. The second time may be set longer than the first time to ensure sufficient delivery of the active ingredient.

[0148] Alternatively, the operating unit (20) may output a low-voltage pulse for a first time period as in (B) of FIG. 15, followed by outputting a high-voltage pulse for a second time period, and then outputting a low-voltage pulse for a third time period, by means of the control unit (50). That is, the control unit (50) may cause the electroporation mechanism of the operating unit (20) to operate according to a pattern including a low-voltage pulse for a first time period - a high-voltage pulse for a second time period - a low-voltage pulse for a third time period.

[0149] According to this control, molecules of the active ingredient can accumulate near the cell membrane without damaging the cell while a low-voltage pulse of the first time is applied. Subsequently, when a high-voltage pulse of the second time is applied, small holes can be formed within the cell, and a Coulomb force can be applied to the molecules of the active ingredient. Then, as a low-voltage pulse of the third time is applied, molecules of the active ingredient can pass through the cell's osmotic membrane and enter the cytoplasm of the cell. At this time, the third time can be controlled to be relatively longer than the first or second time.

[0150] In addition, the control unit (50) may apply a delay interval in the middle of the high voltage pulse as shown in (C) of FIG. 14. The delay interval may be limited to a short duration so as not to become an excessive delay that could cause the cell holes to close.

[0151] The sensing unit (60) can detect the operating state of the working unit (20), the power or charging state of the power supply unit (40), and the condition of the skin. That is, the sensing unit (60) can not only check the status of the components installed within the main body (10), but also detect the real-time condition of the skin that the working unit (20) contacts.

[0152] The detection unit (60) can detect the charging status of the power supply unit (40). The detection unit (60) can check the electrical connection between the power supply unit (40) and the charging unit (70) using a charging detection sensor (61). Alternatively, the charging detection sensor (61) of the detection unit (60) can detect the state of the charging unit (70) and the main body (10) using magnetism. That is, the detection unit (60) can detect the electrical connection with the charging unit (70) in preparation for wired charging, or detect the state of the main body (10) using magnetism in preparation for wireless charging.

[0153] The charging detection sensor (61) of the detection unit (60) may include metal to detect magnetism, and the part of the main body (10) corresponding to the charging detection sensor (61) may be made of a material that is affected by magnetism.

[0154] As previously explained, a charging terminal may be provided in the main body (10), and the sensing unit (60) can detect whether the charging terminal provided in the main body (10) is electrically connected to the charging unit (70) to detect the charging mode. Alternatively, the sensing unit (60) can recognize the charging mode by detecting the adjacent arrangement between the wireless charging structure formed in the main body (10) and the charging unit (70) using magnetism or the like.

[0155] As described above, the detection unit (60) can detect that the beauty device (1) is placed in a charging mode based on the electrical connection between the power supply unit (40) and the charging unit (70) built into the main body (10), or the magnetic connection between the charging unit (70) and the main body (10). In addition, the detection unit (60) can recognize the charging mode by utilizing structural interlocking. For example, a protrusion (not shown) that is elastically supported is provided on the charging unit (70), and when the main body (10) is placed on the charging unit (70) for charging, the detection unit (60) can confirm entry into the charging mode through a structural deformation in which the protrusion is pressed by the outer surface of the main body (10).

[0156] Additionally, the sensing unit (60) can detect whether the working unit (20) is in contact with the skin. When the electrode (21) included in the working unit (20) is in contact with the skin, the sensing unit (60) can detect whether the working unit (20) is in contact with the skin based on the loop formed between the electrode (21) of the working unit (20) and the skin.

[0157] Additionally, the detection unit (60) can detect whether the working unit (20) has entered a usage mode in contact with the skin based on the impedance level in the working unit (20). The detection unit (60) can apply a low-voltage RF pulse through the working unit (20) to measure the impedance of the skin tissue. By measuring the impedance based on the low-voltage RF pulse applied to the skin, the detection unit (60) can detect whether the working unit (20) is separated from the skin.

[0158] If the impedance level detected by the sensing unit (60) is sufficiently high (above a preset value), it can be considered that the working unit (20) is not in contact with the skin. On the other hand, if the impedance level detected by the sensing unit (60) is confirmed to be below the preset value, it can be presumed that the skin is in contact with the working unit (20). The impedance level can be determined at the surface of the electrode (21) of the working unit (20).

[0159] Of course, since the sensing unit (60) can detect whether the working unit (20) is in contact with the skin by utilizing both alternating current and direct current, the impedance and resistance can be interchanged.

[0160] Alternatively, the sensing unit (60) can determine whether the working unit (20) is in contact with the skin based on the current flow between the plurality of electrodes (21) included in the working unit (20). For example, the sensing unit (60) can detect that the working unit (20) is in contact with the skin if the degree of current flow between the plurality of electrodes (21) exceeds a threshold point.

[0161] The sensing unit (60) can detect whether the operating unit (20) has entered a usage mode in which it contacts the skin by using various methods in addition to resistance, impedance, and current flow. The sensing unit (60) may have a skin sensing sensor (62) for confirming skin contact, and the skin sensing sensor (62) may be a sensor that measures electrical physical properties without limitation.

[0162] Additionally, the sensing unit (60) can detect a change in loop resistance regarding the electrical loop formed between the working unit (20) and the skin. Through this, the sensing unit (60) can determine whether the liquid, which is an active ingredient, has been applied to the surface of the skin to which the working unit (20) contacts. For example, the sensing unit (60) can estimate that the active ingredient has been applied to the skin if the loop resistance decreases, while it can estimate that the active ingredient has been reduced or removed from the surface of the skin if the loop resistance increases.

[0163] That is, the sensing unit (60) can determine whether an active ingredient has been applied between the skin and the working unit (20) (at least one side of the surface of the skin and the electrode (21) of the working unit (20)) based on changes in resistance, etc., and this determination can be used to uniformly control the active energy delivered to the skin.

[0164] Additionally, the sensing unit (60) can detect the temperature of the skin. The temperature of the skin can be detected using a temperature sensor (not shown) that may be provided adjacent to the working unit (20). Of course, the sensing unit (60) may further include sensors capable of detecting conditions such as humidity, moisture content, and pH in addition to the temperature of the skin.

[0165] The charging unit (70) is mounted on the main body (10) and charges the power unit (40). The charging unit (70) may be provided in a cylindrical shape to ensure aesthetic appeal in conjunction with the rod shape of the main body (10). The charging unit (70) may have a shape in which a charging stand (71) corresponding to the outer surface shape of the body is mounted on the cylinder. The outer surface of the main body (10) may be supported on the charging stand (71) of the charging unit (70), and the charging stand (71) may be wired or wirelessly connected to the power unit (40) built into the main body (10) to enable charging.

[0166] The charging part (70) has a shape that allows the main body (10) to be tilted and placed at an angle of about 10 degrees. Therefore, the user can easily place the main body (10), which is in the shape of a long rod, onto the charging part (70), so that the working part (20) can be protected while being spaced apart from the floor and usability can be sufficiently improved.

[0167] Although not directly illustrated in the drawing, in this embodiment, the main body (10) may have a shape in which the cross-section of the lower portion tapers toward the bottom so as to maintain a state in which it is placed on the charging portion (70). Alternatively, the main body (10) may have a shape in which a part of the circumference of the lower portion is cut off (chamfer), so that it does not move unnecessarily when placed on the charging portion (70), and the charging efficiency may be improved as the direction in which it is placed on the charging stand (71) is restricted.

[0168] At this time, the position of the chamfered portion at the perimeter of the bottom of the main body (10) can be set to a position where the main body (10) and the charging part (70) come into contact most preferably for charging when the chamfered portion is placed on the floor.

[0169] FIG. 16 is a diagram illustrating the concept of a control unit alternately controlling two or more mechanisms in a beauty device according to a second embodiment of the present invention, FIG. 17 is a diagram illustrating the concept of a control unit implementing alternating control by changing the frequency of one mechanism in a beauty device according to a second embodiment of the present invention, and FIG. 18 is a diagram illustrating the concept of a control unit alternately controlling power levels for two or more mechanisms in a beauty device according to a second embodiment of the present invention. FIG. 19 is also a diagram illustrating the timing of the control unit alternately controlling two or more mechanisms in a beauty device according to a second embodiment of the present invention.

[0170] The following description will focus on the differences between this embodiment and the preceding embodiment, and any parts omitted from the description will be replaced by the preceding content. It should be noted that this applies equally to other embodiments described below.

[0171] Referring to FIGS. 16 to 19, the beauty device (1) according to the second embodiment of the present invention may have an action part (20) capable of outputting two or more types of mechanisms. As previously described, the action part (20) may apply mechanisms such as electroporation (EP), ultrasound (US), and radio frequency (RF) to the skin. However, since mechanisms such as electroporation (EP) and ultrasound (US) consume high-output electrical energy at the level of several watts, they may be a burden in terms of power for a beauty device (1) used wirelessly. In addition, if the power supply part (40) built into the main body (10) is made larger, the size increases, so portability and grip feel decrease, which inevitably causes inconvenience.

[0172] In particular, when two or more types of mechanisms are output simultaneously, as high-output electrical energy is consumed, the power level of the power supply unit (40) drops sharply, and there is a risk that the beauty device (1) will malfunction or turn off, and a reduction in the lifespan may occur.

[0173] The working part (20) of the present embodiment can apply at least two mechanisms among electroporation (EP), ultrasound (US), and radio frequency (RF) to the skin using a single power supply unit (40). At this time, the working part (20) can apply ultrasound (US) having two or more frequencies or radio frequency (RF) having two or more frequencies to the skin in addition to electroporation (EP). For example, the working part (20) can apply mechanisms such as electroporation (EP), ultrasound (US), radio frequency (RF) with a frequency of 2.6M, and radio frequency (RF) with a frequency of 1.3M to the skin. Here, radio frequency (RF) with 2.6M and radio frequency (RF) with 1.3M can be understood as different mechanisms.

[0174] The control unit (50) controls the working unit (20) so that the working unit (20) applies two or more types of mechanisms to the skin, while preventing the power supply unit (40) from rapidly decreasing. For example, the control unit (50) can maintain the degree of power reduction of the power supply unit (40) within a preset range by controlling the working unit (20) to alternately output two or more types of mechanisms.

[0175] That is, the control unit (50) can alternately output different mechanisms to produce maximum efficiency output within the power level of the power supply unit (40) in which the upper limit is fixed. At this time, the control unit (50) can monitor the degree of power reduction of the power supply unit (40) in real time using the detection unit (60), and can control the alternating output of the operating unit (20) so that the slope of the power reduction is within a preset value.

[0176] The control unit (50) can control the operating unit (20) so that two or more types of mechanisms are output in a time-divided pattern. As shown in FIG. 16, etc., when the control unit (50) applies two types of mechanisms, such as electroporation (EP) and ultrasound (US), to the operating unit (20), it can set a delay period during which there is no mechanism action. In addition, the control unit (50) can allocate the action time of each mechanism by considering the frequency of the mechanism or the amount of energy used.

[0177] The control unit (50) controls the action unit (20) to alternately output two or more types of mechanisms, thereby maintaining the temperature of the skin contacted by the action unit (20) within a preset range. The sensing unit (60) described above can measure the skin temperature in real time, and the control unit (50) can prevent overheating by alternately outputting electroporation (EP) and ultrasound (US), etc., and by time-division output. In addition, the control unit (50) can enhance the beauty effect by maintaining the skin temperature constant by causing two or more types of mechanisms to alternately output according to a preset time-division pattern.

[0178] Referring to FIG. 17, the control unit (50) can cause one of the mechanisms to be continuously output during a first period without time division during the initial operation of the operating unit (20). This output can be defined as a Boosting Mode. The control unit (50) can output two or more mechanisms during normal operation after the initial operation in which the Boosting Mode is applied, and at this time, two or more mechanisms can be output in a time-division pattern. The period in which two or more mechanisms are output can be defined as a Normal Mode. Additionally, the control unit (50) can cause the frequency of the ultrasonic (US) or high frequency (RF) output by the operating unit (20) to be changed according to the degree to which the power amount of the power supply unit (40) decreases. In the case of FIG. 17, the frequency change occurs once, but in addition, the frequency change may also occur according to a specific time-division pattern.

[0179] The control unit (50) can change the power level while the operating unit (20) is operating as one mechanism or when switching the mechanism of the operating unit (20). That is, the control unit (50) can use various control algorithms to enable the operating unit (20) to provide a mixture of two or more mechanisms.

[0180] For example, as shown in FIG. 18, the control unit (50) can cause the working unit (20) to apply a first mechanism, such as a high frequency (RF), during the first time, and after the first time has elapsed, the power level of the high frequency (RF) can be lowered in a step-like manner so that the working unit (20) can apply low-power high frequency (RF) energy to the skin during the second time.

[0181] Afterward, the control unit (50) can control the action unit (20) to transmit a second mechanism, such as ultrasound (US), to the skin at a low power level for a third time after the second time has elapsed, and after the third time has elapsed, the power level of the ultrasound (US) transmitted to the skin by the action unit (20) can be increased in a stepwise manner and sustained for a fourth time.

[0182] After the fourth time has elapsed, the control unit (50) can cause the working unit (20) to deliver high-level radio frequency (RF) energy corresponding to the first mechanism to the skin during the fifth time, and after the fifth time has elapsed, the control unit (50) can cause the working unit (20) to deliver high-power ultrasonic (US) energy corresponding to the second mechanism to the skin during the sixth time. After the fifth time has elapsed, the control unit (50) can increase the power level of the ultrasonic (US) during the sixth time.

[0183] In this way, the control unit (50) can apply a control algorithm that converts the power level during the time when the mechanism operates continuously without conversion (including a delay period due to time division) and at the time when the mechanism is converted for two or more types of mechanisms. This control algorithm can be set differently depending on the condition of the skin and the active ingredient applied to the skin.

[0184] The control unit (50) can control the execution of the mechanism depending on whether the working unit (20) comes into contact with the skin. When the sensing unit (60) detects whether the working unit (20) comes into contact with the skin based on the impedance level, etc., the control unit (50) can adjust the time division pattern or power level for two or more mechanisms according to the detection result of the sensing unit (60). Through this, the control unit (50) can reduce unnecessary energy consumption and prevent a sudden decrease in the power amount of the power supply unit (40).

[0185] In addition, as shown in FIG. 19, the control unit (50) can prevent unnecessary superposition of energy during the switching of the mechanism. In this embodiment, the sensing unit (60) can detect vibrations of the skin and generate an electrical signal. That is, when the mechanism is transmitted to the skin by the action unit (20), the sensing unit (60) can confirm the actual termination of the mechanism by detecting vibrations generated on the skin by the mechanism.

[0186] For example, when a first mechanism, such as ultrasound (US), is applied to the skin according to a duty cycle corresponding to a time division pattern, the sensing unit (60) can detect vibrations occurring on the skin by the first mechanism and generate an electrical signal based thereon. Since there may be a time difference between the Off point of the actual duty cycle and the Off point of the first mechanism, the electrical signal generated by the sensing unit (60) may exist until after the Off point of the duty cycle.

[0187] The control unit (50) can determine that the first mechanism has substantially stopped and generate a stop signal when no electrical signal is generated by the detection unit (60), that is, when the electrical signal is confirmed to be no signal. At this time, the stop signal induces the generation of a second mechanism corresponding to a high frequency (RF), etc., which is different from the first mechanism such as ultrasound (US).

[0188] The control unit (50) can assign the On / Off of the stop signal to the time-division pattern of the second mechanism so that the action unit (20) can apply the second mechanism to the skin based on the stop signal. Through such control, the skin delivery of the second mechanism is not initiated when the vibration of the first mechanism remains after the duty cycle is turned On, and the skin delivery of the second mechanism is allowed when the vibration of the first mechanism actually stops.

[0189] In this way, when the control unit (50) switches the mechanism of the operating unit (20), it can delay the operation of the operating unit (20) until the point where the electrical signal by the detection unit (60) is confirmed as no signal. Through such control, the present embodiment can limit the unnecessary reduction of the power supply unit (40) while preventing heat generated by the first mechanism and the second mechanism from occurring simultaneously, and can extend the service life by suppressing metal fatigue and deterioration of the electrode (21).

[0190] In addition to the embodiments described above, the present invention encompasses all embodiments resulting from combinations of the embodiments and combinations of the embodiments and known technology.

[0191] Although the present invention has been described in detail through specific embodiments, this is for the purpose of specifically explaining the invention, and the invention is not limited thereto. It will be apparent that modifications or improvements can be made by those skilled in the art within the technical scope of the invention.

[0192] All simple variations or modifications of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be clarified by the appended claims.

Claims

1. Main body; An operating part provided in the above main body and transmitting power upon contact with the skin; A power supply unit that stores power; and It includes a control unit provided in the above main body and controlling the above operating part, and The above-mentioned operating part is, It is configured to apply two or more mechanisms to the above skin, and The above control unit is, A beauty device that controls the above-described operating part to alternately output two or more types of mechanisms, thereby maintaining the degree of reduction in the power supply part within a preset range.

2. In claim 1, the above-mentioned operating part is, Using one of the above-mentioned power supplies, at least an electroporation mechanism among electroporation, ultrasound, and high frequency is applied to the skin, and A beauty device that applies ultrasound having two or more frequencies or high frequency having two or more frequencies to the skin in addition to electroporation.

3. In Paragraph 1, It further includes a sensing unit that detects the temperature of the skin, The above control unit is, A beauty device that controls the above-mentioned active part to alternately output two or more mechanisms, thereby maintaining the temperature of the skin contacted by the above-mentioned active part within a preset range.

4. In claim 3, the control unit is, A beauty device that controls the above-mentioned active part to alternately output two or more mechanisms and time-divided output, thereby maintaining the temperature of the skin contacted by the above-mentioned active part within a preset range.

5. In claim 4, the control unit is, A beauty device that drives the operating part in at least one of a boosting mode in which one mechanism is continuously output during a first period without time division, and a normal mode in which two or more mechanisms are output in a time-division pattern.

6. In Clause 2, the control unit is, A beauty device that changes the frequency of the ultrasonic or high frequency output by the operating part according to the degree of reduction in the power supply unit.

7. In Paragraph 1, It further includes a sensing unit that detects vibrations of the skin and generates an electrical signal, The above control unit is, A beauty device that delays the action of the above-mentioned action unit until the point in time when the electrical signal by the above-mentioned detection unit is confirmed to be no signal when the mechanism of the above-mentioned action unit is switched.

8. In claim 1, the control unit is, A beauty device that raises or lowers the power level while the above-mentioned working part is operating by any one mechanism, or raises or lowers the power level when switching the mechanism of the above-mentioned working part.

9. In Paragraph 1, It further includes a sensing unit that detects whether the operating part contacts the skin based on the impedance level at the operating part, and The above control unit is, A beauty device that adjusts a time-division pattern for two or more mechanisms according to the detection result of the above-mentioned sensing unit.

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