Beauty device

Abstract

The present invention relates to a beauty device comprising: a main body; an operating part provided on the main body and transmitting power upon contact with the skin; and a control part provided on the main body and controlling the operating part, wherein the operating part comprises a plurality of electrodes spaced apart from one another, and the control part divides the plurality of electrodes into at least two groups and outputs different waveforms for each group of electrodes so that an electrical dead point region moves continuously.

Description

Technology Field

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

[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. The problem to be solved

[0008] The present invention was created to solve the problems of the prior art as described above, and the purpose of the present invention is to provide a beauty device that can resolve energy imbalance caused by the occurrence of electrical dead points by grouping a plurality of electrodes and outputting two or more types of waveforms.

[0009] 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. means of solving the problem

[0010] 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; and a control part provided on the main body and controlling the operating part, wherein the operating part comprises a plurality of electrodes spaced apart from each other, and the control part divides the plurality of electrodes into at least two groups and outputs different waveforms for each group of electrodes so that an electrical dead point region moves continuously.

[0011] Specifically, the control unit can irregularly change the pattern of the current delivered to the skin by the operating unit.

[0012] Specifically, the electrical dead point region may be a region surrounded by an electrical path formed between adjacent electrodes of different polarities, where the electrical path is relatively weak or absent.

[0013] Specifically, the control unit may have at least one of the frequency, pulse width, and polarity inversion pattern for the waveform for the first group of electrodes and the waveform for the second group of electrodes different.

[0014] Specifically, the control unit can control the plurality of electrodes in a first pattern in which a first electrical dead point region is formed, and then control the plurality of electrodes in a second pattern in which a second electrical dead point region different from the first electrical dead point region is formed.

[0015] Specifically, the second pattern may be a pattern in which the portion of the second electrical dead point region overlapping with the first electrical dead point region is minimized.

[0016] Specifically, the control unit can control the plurality of electrodes in a first pattern in which a first electrical dead point region is formed, and then control the plurality of electrodes in a third pattern in which an electrical path is relatively concentrated in the first electrical dead point region.

[0017] Specifically, the control unit divides the plurality of electrodes into an inner group and an outer group based on the surface in contact with the skin at the working part, and the electrodes of the outer group are controlled in a form where their polarity is rotationally symmetric, while the electrodes of the inner group are controlled in a form where their polarity is not rotationally symmetric. Effects of the invention

[0018] The beauty device according to the present invention can eliminate the occurrence of electrical dead spots by controlling the electrodes in parallel during output using a plurality of electrodes.

[0019] 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. Brief explanation of the drawing

[0020] FIG. 1 is a block diagram of a beauty device according to a first embodiment of the present invention. FIG. 2 is a partial block diagram of a beauty device according to a first embodiment of the present invention. FIG. 3 is a diagram showing the current path of a beauty device according to the first embodiment of the present invention. FIG. 4 is a plan view of the working part of a beauty device according to the first embodiment of the present invention. FIG. 5 is a plan view of the working part of a beauty device according to the first embodiment of the present invention. FIG. 6 is a plan view of the working part of a beauty device according to the first embodiment of the present invention. FIG. 7 is a diagram showing the mechanism waveform of a beauty device according to the first embodiment of the present invention. FIG. 8 is a plan view of the working part of a beauty device according to a second embodiment of the present invention. FIG. 9 is a plan view of the working part of a beauty device according to a third embodiment of the present invention. FIG. 10 is a plan view of the working part of a beauty device according to the fourth embodiment of the present invention. FIG. 11 is a plan view of the working part of a beauty device according to the fifth embodiment of the present invention. Specific details for implementing the invention

[0021] 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.

[0022] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

[0024] FIG. 1 is a block diagram of a beauty device according to a first embodiment of the present invention, and FIG. 2 is a partial block diagram of a beauty device according to a first embodiment of the present invention.

[0025] FIG. 3 is a diagram showing the current path of a beauty device according to the first embodiment of the present invention, FIG. 4 to 6 are plan views of the working part of the beauty device according to the first embodiment of the present invention, and FIG. 7 is a diagram showing the mechanism waveform of the beauty device according to the first embodiment of the present invention.

[0027] Referring to FIGS. 1 to 7, 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 power supply part (40), a control part (50), a sensing part (60), etc.

[0029] The main body (10) forms the part that the user holds. The main body (10) may be equipped with an operating part (20), a power supply part (40), a control part (50), a sensing part (60), etc., which will be described later, and some components of the above configuration, such as the operating part (20), may be provided to be exposed to the outer surface of the main body (10).

[0030] 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.

[0031] The main body (10) may form a handle (11) so that the user can grip it. The main body (10) may have the shape of a rod with a circular cross-section, and an operating part (20), etc. may be provided on one side 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).

[0032] In the case of some publicly known beauty devices (1), they have an overly complex appearance due to a focus on multifunctionality, which results in an unnatural usage method and requires the user to learn a lot 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 the user's behavior can be induced by design elements even without 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.

[0033] 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).

[0034] 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 one side of the main body (10) spaced apart from the operating unit (20). Additionally, a structure may be formed so that the power supply unit (40) can be charged via wireless charging, such as an electromagnetic induction method, while mounted on the charging unit (not shown) of the main body (10).

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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).

[0041] The beauty device (1) according to the present embodiment can improve the problem of energy being delivered unevenly to the skin as an electrical dead point (hatched area) occurs in the working part (20) including a plurality of electrodes (21).

[0042] The working part (20) may include a plurality of electrodes (21) as previously described. At this time, the electrodes (21) may be spaced apart from each other and may be divided into at least two groups. The division of the electrodes (21) may be pre-set, and the control unit (50) may control the output differently for the groups of divided electrodes (21). Of course, the grouping of the electrodes (21) may be changed as needed during use. For example, the grouping of the electrodes (21) may be readjusted according to the condition of the skin, information on the active ingredient, usage environment, user input, etc. The control of the electrodes (21) will be explained in detail below.

[0043] 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 composed of multiple electrodes as shown in the drawing, and of course, it is also possible to provide a single electrode (21) as shown in the drawing.

[0044] 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 radially around the first electrode (21a). The second electrode (21b) may be composed of multiple electrodes and arranged to form a dotted ring shape along the periphery of the first electrode (21a).

[0045] The first electrode (21a) and the second electrode (21b) can be separated into different groups so that their polarity can be controlled. In this case, the first electrode (21a) and the second electrode (21b) can be controlled individually. Alternatively, a part of the first electrode (21a) and a part of the second electrode (21b) can be grouped together for control. That is, it should be noted that the first electrode (21a) and the second electrode (21b) are separated only according to the pattern arranged on the surface of the working part (20), and that their control is not necessarily separated from one another.

[0047] 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 a wired or wireless connection through a charging unit to be described later.

[0048] The power from the power supply unit (40) is transferred to the working unit (20) so that the electrode (21) applies the mechanism to the skin, and the voltage of the power transferred from the power supply unit (40) to the working unit (20) can be adjusted.

[0050] 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).

[0051] 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.

[0052] 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).

[0053] That is, the control unit (50) can change the mechanism of the working unit (20) or adjust the electrical energy, etc., that the working unit (20) delivers to the skin by taking into account the usage state of the working unit (20).

[0054] 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.

[0055] 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.

[0057] 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.

[0058] 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 (not shown) 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 and the main body (10) using magnetism. That is, the detection unit (60) can detect the electrical connection with the charging unit in preparation for wired charging, or detect the state of the main body (10) using magnetism in preparation for wireless charging.

[0059] 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.

[0060] As previously explained, a charging terminal may be provided in the main body (10), and the sensing unit (60) can detect a charging mode by detecting whether the charging terminal provided in the main body (10) is electrically connected to the charging unit. Alternatively, the sensing unit (60) can recognize a charging mode by detecting the adjacent arrangement between the wireless charging structure formed in the main body (10) and the charging unit using magnetism or the like.

[0061] As described above, the detection unit (60) can detect that the beauty device (1) is in a charging mode based on an electrical connection between the power supply unit (40) built into the main body (10) and the charging unit, or a magnetic connection between the charging unit 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, and when the main body (10) is placed on the charging unit 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).

[0062] 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.

[0063] 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.

[0064] 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).

[0065] 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.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] 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.

[0070] 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.

[0072] Hereinafter, the control of the electrodes (21) of the working unit (20) by the control unit (50) of the present embodiment will be explained in detail. The control unit (50) can divide a plurality of electrodes (21) into an inner group and an outer group based on the surface in contact with the skin in the working unit (20). The electrodes (21) of the outer group can be controlled in a form where the polarity is rotationally symmetric as shown in FIG. 4, and the electrodes (21) of the inner group can be controlled in a form where the polarity is not rotationally symmetric as shown in FIG. 4. Of course, such group division of the electrodes (21) and polarity control therefrom can be determined in various ways depending on the number or arrangement of the electrodes (21) included in the working unit (20).

[0073] The control unit (50) can cause different waveforms to be output for each group of electrodes (21). Referring to FIG. 3, when two electrodes (21) with different polarities come into contact with the skin, an electrical path can be formed between the two electrodes (21). When such an electrical path is indicated for an operating unit (20) containing a plurality of electrodes (21), it appears as in FIG. 4.

[0074] Referring to FIG. 4, an electrical path is formed between electrodes (21) with different polarities, but depending on the arrangement of the electrodes (21), there may be parts where the electrical path is not shown. That is, there exists an electrical dead point area surrounded by the electrical path formed between adjacent electrodes (21) with different polarities, and the electrical dead point area may be an area where the electrical path is relatively weak or non-existent.

[0075] If the pattern of the electrode (21) is maintained at a constant level, an electrical dead zone may occur in a certain part of the skin where the action part (20) transmits the mechanism. This can hinder the uniform transmission of energy to the skin and cause unnecessary irritation.

[0076] In order to resolve this problem, the present embodiment can irregularly change the pattern of the current delivered to the skin by having the control unit (50) output different waveforms for the electrodes (21) that are divided into at least two groups in the working unit (20).

[0077] For example, the control unit (50) can control the waveform for the electrode (21) of the first group and the waveform for the electrode (21) of the second group so that at least one of the frequency, pulse width, and polarity inversion pattern is different. The waveform mentioned above can be interpreted as including a polarity output.

[0078] The control unit (50) can control the electrode (21) with an initial polarity at the first time point (t1) shown as a vertical solid line in FIG. 7, and control the electrode (21) with an inverted polarity at the second time point (t2) shown as a vertical solid line to the right of the first time point.

[0079] Specifically, the control unit (50) can apply two voltage waveforms shown in FIG. 7 to the electrodes (21) of the first group and the electrodes (21) of the second group, respectively, at the first time point (t1) of FIG. 7, and then reverse the voltage waveforms applied to the electrodes (21) of the first group and the second group (21) when the second time point (t2) is reached. Through this, the polarity of the electrodes (21) of the first and second groups can be reversed.

[0080] When the electrode (21) is controlled with initial polarity, the electrical dead point region is as shown in (A) of FIG. 5, and when the electrode (21) is controlled with reverse polarity, the electrical dead point region is as shown in (B) of FIG. 5.

[0081] The electrical dead point regions shown in FIG. 5 (A) and FIG. 5 (B) may be arranged to overlap minimally with each other. That is, the control unit (50) may control a plurality of electrodes (21) in a first pattern in which a first electrical dead point region is formed, and control a plurality of electrodes (21) in a second pattern in which a second electrical dead point region different from the first electrical dead point region is formed. At this time, the second electrical dead point region may be a pattern in which the portion overlapping with the first electrical dead point region is minimized (less than a preset value).

[0082] When the control unit (50) implements alternating control to activate the electrode (21) according to (A) of FIG. 5 and activate the electrode (21) according to (B) of FIG. 5, the electrical dead point area can continuously move within the area indicated in FIG. 6. That is, since the electrical dead point area is not fixed, it is possible to resolve cases where current is not supplied to a specific part of the skin for a long time.

[0083] When the control unit (50) controls a plurality of electrodes (21) in a first pattern in which a first electrical dead point region is formed, considering that sufficient effective energy is not delivered to the first electrical dead point region from the skin, the control unit (50) can control a plurality of electrodes (21) in a third pattern in which the electrical path is relatively concentrated in the first electrical dead point region.

[0084] That is, the control unit (50) can disperse energy to the skin by ensuring that the position of the electrical dead point area, where effective energy is not properly transmitted, is not fixed by causing the electrical dead point area to move continuously. In addition, the control unit (50) can apply effective energy evenly to the skin that the action unit (20) contacts by changing the mechanism for the electrical dead point area or changing the operation of the action unit (20) to supplement and transmit energy.

[0085] For example, as shown in (C) of Fig. 5, control can be performed to cover the dead point area that occurred during the previous mechanism, rather than control to reduce the dead point area.

[0086] In the case of (A) and (B) of FIG. 5, a dead spot region may occur between the first electrode (21a) and the second electrode (21b). FIG. 5 (C) takes this into account, so that the first electrode (21a) has the same polarity and the second electrode (21b) has the same polarity opposite to that of the first electrode (21a). In this case, although a dead spot region may occur between the first electrodes (21a) and between the second electrodes (21b), the dead spot region that occurred in FIG. 5 (A) or (B) can be intensively covered.

[0087] That is, the present embodiment does not stop at control that changes the dead point area, but can also use control that forms an intensive current path in the part that was the dead point area.

[0088] In particular, this embodiment can achieve a more effective effect when applied to a local area. When the working part (20) is used by contacting it to a relatively wide area of ​​the skin, such as the cheek area of ​​the face or a body part excluding the face, the user can use it while moving the working part (20), and in this case, the electrical dead point area can be partially resolved. However, if effective energy is transmitted through the electrode (21) while the working part (20) maintains contact with a specific point on the skin, the electrical dead point area may become an issue.

[0089] At this time, the present invention can ensure that effective energy is evenly delivered to local areas by continuously changing the position of the electrical dead point region based on the operation described above. That is, this embodiment can guarantee a definite cosmetic effect even when delivering the mechanism to local areas such as the jawline.

[0091] FIG. 8 is a plan view of the working part (20) of a beauty device according to a second embodiment of the present invention.

[0092] 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.

[0093] Referring to FIG. 8, the beauty device (1) according to the second embodiment of the present invention can group control the electrodes (21) included in the working part (20) in an array form. For example, as indicated by the dotted line in the drawing, at least two electrodes (21) can be set as one array and other two electrodes (21) can be set as another array.

[0094] The control unit (50) can control the formation of a driving pattern based on a preferred array for the multiple electrodes (21) of the working unit (20). In this case, the pattern of the array may vary depending on the detection value by the sensing unit (60) described above, the condition of the skin, the presence of an active ingredient, the type of active ingredient, etc.

[0095] In this embodiment, as described in the previous embodiment, the electrode (21) is grouped and two or more types of waveforms are output, and different waveforms can be output based on the array. It is also possible for different mechanisms to be output for two arrays. Of course, the array can be defined for a part of the electrode (21), and the electrode (21) grouping and the electrode (21) array may be designated differently from each other.

[0096] Due to the array pattern, the coherence (or correlation) of frequencies transmitted to the skin may occur at specific locations within the skin. Coherence refers to the degree of interrelationship between two or more different or identical mechanisms and can be defined temporally or spatially.

[0097] Temporal coherence refers to a phenomenon where one mechanism maintains a similar relationship with another even when a temporal difference occurs; it occurs when signals are continuous, have a constant phase difference, and have the same frequency. On the other hand, spatial coherence refers to a phenomenon where one mechanism maintains a similar relationship with another even when shifting within a spatial concept; whether interference occurs between two waveforms can be influenced by factors such as the spatial difference or time delay between the sources of the two waveforms.

[0098] The action unit (20) can deliver two coherent mechanisms to the skin using two arrays, which can be exerted in conjunction with the resolution of electrical dead point regions. For example, the electrical dead point region to be generated when the mechanism is output by the electrode (21) is estimated, and the control unit (50) can control temporal / spatial coherence based on this.

[0099] That is, the control unit (50) can prevent combinations of phases caused by constructive interference or destructive interference by randomizing the phases of the two mechanisms when the two arrays output the same frequency, and can prevent a reduction in the amount of energy transferred due to frequency interference in the electrical dead zone. By utilizing this randomization control, an effective pattern for the effective energy transfer of the skin can be provided.

[0100] For example, the control unit (50) can perform dispersion adjustment by randomly selecting a phase between 0 to 220 degrees for one electrode (21) in an array and randomly selecting a phase between 140 to 360 degrees for the remaining electrodes (21) in the array. At this time, the phase values ​​can be varied.

[0101] The control unit (50) may apply an alternating driving pattern to two or more arrays. The alternating driving pattern may be used to transfer energy from some of the electrodes (21) to a specific location within the skin. For example, the control unit (50) may select electrodes (21) that have directionality toward a location of interest (e.g., an electrical dead point region, etc.) and provide phase randomization for the electrodes (21) so as to be non-interfering with the field of the location of interest.

[0102] Additionally, the control unit (50) can perform frequency modulation for each array (electrode (21)) to reduce the electrical dead zone area and enhance the delivery of effective energy to the skin. The control unit (50) can spread the energy widely and evenly by changing the frequency within a burst of wave velocity to blur the wave front.

[0104] FIG. 9 is a plan view of the working part (20) of a beauty device according to the third embodiment of the present invention.

[0105] Referring to FIG. 9, the beauty device (1) according to the third embodiment of the present invention can apply rotational output to a plurality of electrodes (21) that come into contact with the skin, and can implement a pattern in which the working part (20) rotates.

[0106] When the working part (20) is in contact with the skin, the control part (50) can sequentially apply the mechanical output to a plurality of electrodes (21) included in the working part (20) in a rotating direction. At this time, rotation may refer to a movement that draws an arc with respect to the center of the working part (20), but is not necessarily limited to an arc shape and may include any route that moves along an unrestricted path.

[0107] That is, the control unit (50) can sequentially output energy along a specific path for a plurality of electrodes (21). For example, the control unit (50) can control the output for a plurality of electrodes (21) in a rotating manner as shown in the drawing, or form a continuous path in a figure-eight shape, a spiral shape, an S shape, etc.

[0108] If the output of the mechanism is moved in a pattern for multiple electrodes (21), advantages can be obtained in terms of energy transfer efficiency to the internal tissue of the skin. For example, when the working part (20) comes into contact with the skin, the electrode (21) comes into contact with a specific area of ​​the skin. At this time, if the electrode (21) rotates by the control part (50), the total area of ​​the skin to which the mechanism is delivered by the working part (20) is maintained sufficiently large, while substantially reducing the risk of damage to the skin tissue.

[0109] In addition, due to the sequential output of the electrode (21), a delay period is applied to a part of the skin tissue that does not receive direct energy, which eliminates the need to separate the working part (20) from the skin to avoid excessive energy transfer.

[0110] That is, in this embodiment, while the working part (20) maintains contact with the skin, the control part (50) sequentially implements the output by a plurality of electrodes (21) along a path, thereby reducing the risk of damage to the skin tissue and increasing the amount and duration of energy delivered to the internal tissue, and based on this, the effect of supplying energy to the internal tissue can be improved.

[0112] FIG. 10 is a plan view of the working part (20) of a beauty device according to the fourth embodiment of the present invention.

[0113] Referring to FIG. 10, a beauty device (1) according to the fourth embodiment of the present invention can be controlled to have a three-phase cluster electrode (21). For reference, the electrode (21) in FIG. 10, etc. may differ from the previous embodiment, but is not limited thereto, and the contents of FIG. 10 may be applied to the electrode (21) shown in the previous embodiment. Conversely, it is also obvious that the contents of the previous embodiment may be applied to the electrode (21) arranged in this embodiment.

[0114] For reference, in this specification, a plurality of electrodes (21) may be controlled according to grouping, array, or cluster, etc. Grouping means dividing all of the plurality of electrodes (21) into multiple groups, and an array is similar to grouping but sets some of the plurality of electrodes (21) as a first array, other parts as a second array, etc., so that electrodes (21) that are not set as an array may occur. In addition, in the case of a cluster, at least two or more electrodes (21) among the plurality of electrodes (21) are grouped together, and can be distinguished from grouping where one electrode (21) can form one group.

[0115] However, it should be noted that the terms grouping, array, and cluster described in this specification are not necessarily limited to terms having different meanings and may be used interchangeably and substituted for each other. That is, an embodiment in which the grouping of the electrode (21) is limited may utilize an array of electrodes (21), and vice versa.

[0116] Three or more electrodes (21) may be provided in the working part (20), and these may be grouped or divided into two arrays as mentioned in the previously described embodiment. On the other hand, in conjunction with or separately from this, the control part (50) may control the multiple electrodes (21) of the working part (20) to form a three-phase cluster.

[0117] The control unit (50) forms clusters corresponding to a plurality of signals (mechanisms) for the operating unit (20), and can effectively deliver effective energy to the tissue. At this time, the three-phase cluster may have a phase offset of 120 degrees. That is, the three-phase cluster can output three RF signals simultaneously and can be used to achieve balanced delivery of effective energy.

[0118] As a result, the rate of effective energy transfer in this embodiment increases, the control efficiency for energy transfer to the skin area can be improved, and the cosmetic effect can be enhanced.

[0119] The control unit (50) can independently vary the phase, amplitude, and frequency of the signal for each cluster according to biological parameters such as user input, skin impedance, and return electrode (21) current.

[0120] According to (A) of FIG. 10, the control unit (50) can form a cluster including a triangular or delta-shaped electrode (21) configuration for a plurality of electrodes (21). For example, when there are a total of 9 electrodes (21) included in the operating unit (20), the control unit (50) can form clusters of 3, and the clusters can be formed so that their regions overlap each other.

[0121] At this time, the electrode (21) can be clustered into a first shape electrode (211), a second shape electrode (212), a third shape electrode (213), etc. For reference, the first shape is an equilateral triangle, the second shape is an inverted triangle, and the third shape is a horizontal line, and the shapes can be determined in various ways.

[0122] Alternatively, according to (B) of FIG. 10, the control unit (50) can cluster a plurality of electrodes (21) so that their regions do not overlap. That is, the clusters can be divided into upper electrodes (211), central electrodes (212), and lower electrodes (213), and the regions of the clusters may not overlap.

[0123] Of course, the control unit (50) can apply a conversion of the cluster during the transmission process of the mechanism. Thus, the action unit (20) can transmit effective energy to the skin through (A) of FIG. 10, and then transmit effective energy to the skin through (B) of FIG. 10. Alternatively, the control unit (50) can also change the cluster when the mechanism is converted.

[0124] In this way, when the control unit (50) controls the electrode (21) into a three-phase cluster, a current path between the electrodes (21) can be established according to the clustering form. Since the current path is ultimately directly related to the occurrence of an electrical dead point region, the control unit (50) can implement cluster conversion by taking into account the occurrence of an electrical dead point region.

[0125] That is, the control unit (50) can operate the output of the electrode (21) described in the first embodiment, but can apply cluster control in preparation for cases where the occurrence time of the electrical dead point region is prolonged. In addition, since the electrical dead point region may occur even during cluster control, the cluster can be changed after a certain period of time has elapsed.

[0126] For example, electrical dead point regions may occur in various ways depending on the current path formed between electrodes (21) that are clustered differently or between electrodes (21) that are clustered identically. At this time, if cluster control is maintained for a certain period of time, an electrical dead point region occurs as described in the previous embodiment, and effective energy transfer may be relatively insufficient in that region. Therefore, the control unit (50) can resolve the problem of reduced cosmetic effects caused by electrical dead point regions by diversifying the pattern of energy transfer through the combined use of cluster control and cluster conversion.

[0127] According to the present embodiment, the phase relationship between two or three or more of the plurality of electrodes (21) can be arbitrarily configured, or the output signal, frequency, etc. of the mechanism can be patterned. Through this, the control unit (50) can adjust the energy transfer pattern and effectively achieve the transfer of effective energy to a specific area of ​​the skin.

[0129] FIG. 11 is a plan view of the working part (20) of a beauty device according to the fifth embodiment of the present invention.

[0130] Referring to FIG. 11, the beauty device (1) according to the fifth embodiment of the present invention can implement the operation of the beauty device (1) in various ways by using electrode (21) pair or electrode (21) group switching.

[0131] The control unit (50) can arbitrarily select a pair of electrodes (21) from among the plurality of electrodes (21) provided in the working unit (20) and apply current to the skin using the pair of electrodes (21). At this time, the application of current is indicated by a bidirectional arrow connecting the selected pair of electrodes (21) among the electrodes (21) provided in the working unit (20), as shown in FIG. 11. For example, the bidirectional arrow indicates that current is being applied to the skin through the electrodes (21).

[0132] For example, the control unit (50) can activate some of the electrodes (21) arbitrarily selected from among the plurality of electrodes (21) provided in the working unit (20) as shown in FIG. 11 to deliver effective energy to the skin. Alternatively, unlike the drawing, the control unit (50) can assign all electrodes (21) included in the working unit (20) to form pairs.

[0133] While current is applied to the skin, for each pair of activated electrodes (21), one electrode (21) may operate as an anode and the other electrode (21) may operate as a cathode. For example, when two or more pairs of electrodes (21) operate simultaneously and current is applied to the skin, current flows between the anode and the cathode of each pair of electrodes (21).

[0134] The control unit (50) can combine time control with the allocation of pairs of electrodes (21) and the control of current through them. For example, the control unit (50) can apply current to the skin through pairs of electrodes (21) as shown in (A) of FIG. 11 for a first time, and then stop the operation of pairs of electrodes (21) according to (A) of FIG. 11 and then start the transmission of current through pairs of electrodes (21) shown in (B) of FIG. 11. Additionally, the control unit (50) can switch to the transmission of current through pairs of electrodes (21) shown in (C) of FIG. 11.

[0135] When the control unit (50) switches the pair of electrodes (21) that output effective energy in this way, one or more electrodes (21) may not transmit current to the skin. In this case, the electrode (21) may be cooled, so that overheating of the electrode (21) can be prevented.

[0136] The control unit (50) can use the electrode (21) pair in a form where three or more electrodes (21) are connected, in addition to two electrodes (21) being connected. For example, three electrodes (21) can be connected as a pair of electrodes (21), with one electrode (21) used as the negative electrode and the other two electrodes (21) used as the positive electrode. Of course, the opposite is also possible.

[0137] The control unit (50) can apply the previously described electrode (21) pair switching control to any number of electrodes (21) and any group of electrodes (21) in various ways. Accordingly, the control unit (50) can group the electrodes (21) into groups containing two or more electrodes (21), and switching between the groups of electrodes (21) may be possible. In this case, cooling can be induced for the electrodes (21) that are deactivated as much as necessary.

[0138] The control unit (50) may apply a delay period when switching the pair of electrodes (21). That is, when the pair of electrodes (21) is switched, for example, from (A) of FIG. 11 to (B) of FIG. 11, the control unit (50) may forcibly stop the transmission of current for a short period of time to prevent adverse effects caused by unnecessary / unexpected current interference. That is, the control unit (50) may activate the pair of electrodes (21) according to FIG. 11 (A) to transmit effective energy, and then, after the delay period during which current transmission is stopped has elapsed, activate the pair of electrodes (21) according to FIG. 11 (B) to transmit effective energy to the skin.

[0139] In contrast, the control unit (50) may also make it possible for the time period during which a specific pair of electrodes (21) is activated in the operating unit (20) to overlap with the time period during which another pair of electrodes (21) is activated. This may be a case where the shapes of the pairs of electrodes (21) before and after switching do not overlap.

[0140] While the working part (20) is in contact with the skin, the control unit (50) can continuously control the pair of electrodes (21). The control unit (50) can assign various types of pairs of electrodes (21) not limited to FIG. 11, and can activate the pair of electrodes (21) according to a preset time period to deliver effective energy to the skin.

[0141] The allocation form of the pair of electrodes (21) may be related to the resolution of the electrical dead point region described above. The control unit (50) can estimate the electrical dead point region that will occur in the operating unit (20) by considering the polarity of the electrodes (21), and can select a pair of electrodes (21) to which current can be delivered to the part by considering that the delivery of effective energy to the estimated electrical dead point region is insufficient.

[0143] 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.

[0144] 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.

[0145] 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. Explanation of the symbols

[0146] 1: Beauty device 10: Main body 11: Handle 20: Site of action 21: Electrode 40: Power supply 50: Control unit 51: Button 60: Detector 61: Charging detection sensor 62: Skin detection sensor

Claims

Claim 1 A beauty device comprising: a main body; an operating part provided on the main body and transmitting power in contact with the skin; and a control part provided on the main body and controlling the operating part, wherein the operating part comprises a plurality of electrodes spaced apart from each other, and the control part divides the plurality of electrodes into at least two groups and outputs different waveforms for each group of electrodes so that an electrical dead point region moves continuously. Claim 2 A beauty device according to claim 1, wherein the control unit irregularly changes the pattern of current delivered to the skin by the action unit. Claim 3 A beauty device according to claim 1, wherein the electrical dead point region is surrounded by an electrical path formed between adjacent electrodes of different polarities, and the electrical path is a region that is relatively weak or absent. Claim 4 A beauty device according to claim 1, wherein the control unit is such that the waveform for the first group of electrodes and the waveform for the second group of electrodes differ in at least one of the frequency, pulse width, and polarity inversion pattern. Claim 5 A beauty device according to claim 1, wherein the control unit controls the plurality of electrodes in a first pattern in which a first electrical dead point region is formed, and then controls the plurality of electrodes in a second pattern in which a second electrical dead point region different from the first electrical dead point region is formed. Claim 6 A beauty device according to claim 5, wherein the second pattern is a pattern in which the portion over which the second electrical dead point region overlaps with the first electrical dead point region is minimized. Claim 7 A beauty device according to claim 1, wherein the control unit controls the plurality of electrodes in a first pattern in which a first electrical dead point region is formed, and then controls the plurality of electrodes in a third pattern in which an electrical path is relatively concentrated in the first electrical dead point region. Claim 8 A beauty device according to claim 1, wherein the control unit divides the plurality of electrodes into an inner group and an outer group based on the surface in contact with the skin at the working part, wherein the electrodes of the outer group are controlled in a manner in which their polarity is rotationally symmetric, and the electrodes of the inner group are controlled in a manner in which their polarity is not rotationally symmetric.

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