Cosmetic device and control method of cosmetic device

Abstract

A cosmetic device (1A) is provided with an electrode group (22) having three or more electrodes (23) through which a current flows to the skin of a user. Furthermore, the cosmetic device (1A) is provided with a control unit (13a) that sets two or more positive electrodes and one or more negative electrodes for the electrodes (23) included in the electrode group (22), and changes the settings at predetermined time intervals. The control unit (13a) makes the characteristics of the current applied to each of a first positive electrode and a second positive electrode selected from the two or more positive electrodes different from each other.

Description

Technical Field

[0001] The present disclosure relates to a beauty device and a control method of the beauty device. Background Art

[0002] Conventionally, there are beauty devices that apply beauty effects to the skin by applying electricity while electrodes are in contact with the skin surface of the user. For example, Patent Document 1 discloses a technology related to a beauty device that includes a plurality of electrodes arranged along a circumferential direction and applies electricity between electrodes in a predetermined combination. In this beauty device, by changing the combination of electrodes, the part of the skin that is energized changes over time.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2020-185207 Summary of the invention

[0006] The beauty device disclosed in Patent Document 1 can stimulate the skin only between electrodes of a predetermined combination, and therefore lacks a pleasant feeling when used on the skin.

[0007] The present disclosure provides a beauty device and a method for controlling the beauty device that applies stimulation to the user's skin that can provide a better feeling of use.

[0008] The beauty device of the first aspect of the present disclosure comprises: an electrode group having three or more electrodes for passing current through the skin of a user; and a control unit for setting two or more positive electrodes and one or more negative electrodes for the electrodes included in the electrode group, and changing the setting at predetermined intervals. The control unit makes the characteristics of the current applied by the first positive electrode and the second positive electrode selected from the two or more positive electrodes different from each other.

[0009] In addition, a control method of a beauty device according to a second aspect of the present disclosure is a control method of a beauty device having an electrode group, wherein the electrode group has three or more electrodes for passing current through the skin of a user. The control method of the beauty device has the following steps: setting the electrodes included in the electrode group to two or more positive electrodes and one or more negative electrodes, and changing the setting at predetermined intervals. In the step, the characteristics of the current applied by the first positive electrode and the second positive electrode selected from the two or more positive electrodes are different from each other.

[0010] According to the present disclosure, it is possible to provide a beauty device and a method for controlling the beauty device that can provide a better feeling of use to the user's skin. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1It is a perspective view of the beauty device according to the first embodiment.

[0012] Figure 2 This is an enlarged view of the head portion of the beauty device according to the first embodiment.

[0013] Figure 3A This is a diagram showing the first stage of the first usage mode in the first embodiment.

[0014] Figure 3B This is a diagram showing the second stage of the first usage mode in the first embodiment.

[0015] Figure 3C This is a diagram showing the third stage of the first usage mode in the first embodiment.

[0016] Figure 3D It is a diagram showing the fourth stage of the first usage mode in the first embodiment.

[0017] Figure 4 It is a perspective view showing a beauty device to which an expansion structure is connected.

[0018] Figure 5 It is a partial enlarged view of the extended structure.

[0019] Figure 6 It is a perspective view of the beauty device according to the second embodiment.

[0020] Figure 7 This is a plan view of a beauty device according to a second embodiment.

[0021] Figure 8 This is an exploded view of the beauty device according to the second embodiment.

[0022] Fig. 9 is with Figure 7 The IX-IX section corresponds to a cross-sectional view of the mask body.

[0023] Fig. 10A This is a diagram showing the first stage of the first usage mode in the second embodiment.

[0024] Fig. 10B It is a diagram showing the second stage of the first usage mode in the second embodiment.

[0025] Fig. 10C This is a diagram showing the third stage of the first usage mode in the second embodiment.

[0026] Fig. 10D It is a diagram showing the fourth stage of the first usage mode in the second embodiment.

[0027] Fig.11AThis is a diagram showing the first stage of the second usage mode in the second embodiment.

[0028] Fig. 11B This is a diagram showing the second stage of the second usage mode in the second embodiment.

[0029] Fig. 11C It is a diagram showing the third stage of the second usage mode in the second embodiment.

[0030] Fig.11D It is a diagram showing the fourth stage of the second usage mode in the second embodiment. DETAILED DESCRIPTION

[0031] The following describes the embodiments in detail with reference to the accompanying drawings. However, sometimes an overly detailed description is omitted. For example, sometimes a detailed description of a well-known matter or a repeated description of a substantially identical structure is omitted. In addition, the drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and it is not intended to use them to limit the subject matter described in the claims.

[0032] (First embodiment)

[0033] Figure 1 It is a perspective view showing the beauty device 1A according to the first embodiment. Figure 2 This is an enlarged view of the head 20 included in the beauty device 1A.

[0034] The beauty device 1A is a device that applies beauty effects as electrical stimulation by passing electric current through the user's skin in a manner in which the user performs beauty treatment while holding the beauty device 1A. The beauty device 1A includes a main body 10 and a head 20 .

[0035] The main body 10 includes a housing 11, a battery 12 as a power supply unit, a control substrate 13 on which a control unit 13a is mounted, and a switch button as an operation unit. The control unit 13a is not limited to a hardware circuit specially designed to realize its functions, but can also realize its functions by executing a program stored in a memory by a processor.

[0036] A portion of the housing 11 supports the head 20, and the housing 11 accommodates components such as the battery 12 and the control substrate 13. The housing 11 as a whole is in the shape of a column with one end being the top 11a and the other end being the bottom 11b. When performing beauty treatments, the user holds the side portion of the housing 11. Hereinafter, a portion of the side portion of the housing 11 that is opposite to the user side when the user holds the housing 11 during beauty treatments is defined as the front portion 11c. On the other hand, a portion of the side portion of the housing 11 that is opposite to the front portion 11c is defined as the back portion 11d. Since the housing 11 is in such a columnar shape, when the user holds the housing 11, the user's palm and fingers other than the thumb can easily come into contact with the back portion 11d, and the user's thumb can easily come into contact with the front portion 11c.

[0037] The top portion 11a supports the head 20. The surface of the top portion 11a is inclined relative to a plane perpendicular to the axial direction of the housing 11 so that the height of the front portion 11c side is lower than the height of the back portion 11d side. Thus, when the user holds the housing 11 during beauty treatment, the head 20 can easily come into contact with the user's skin.

[0038] The battery 12 is electrically connected to the control board 13 . A portion of the control board 13 is electrically connected to an electrode group 22 located in the head 20 .

[0039] The switch button is exposed to the outside from the front portion 11c of the housing 11 and is operated by the user. The switch button is, for example, a power / mode switch 14a and a level switch 14b. The power / mode switch 14a is operated to turn the power on / off, switch the use mode, etc. The level switch 14b is operated to adjust the power level.

[0040] The head 20 operates when supplied with electric power, and beautifies the user's skin. The head 20 includes a head body 21 and an electrode group 22 .

[0041] The head body 21 has a head surface 21a facing the user's skin as a beauty target during beauty treatment. In addition, the head body 21 has a head surface 21a on which an electrode group 22 is arranged to contact the user's skin during beauty treatment.

[0042] As an example, the electrode group 22 is a collection of three or more electrodes 23, including an upper electrode 23a, a lower electrode 23b, and an intermediate electrode. The intermediate electrode refers to an electrode arranged between the upper electrode 23a and the lower electrode 23b. In this embodiment, as an example, the electrode group 22 includes two intermediate electrodes, namely, a first intermediate electrode 23c and a second intermediate electrode 23d. That is, as an example, the electrode group 22 includes four electrodes 23, namely, an upper electrode 23a, a lower electrode 23b, a first intermediate electrode 23c, and a second intermediate electrode 23d. The electrode 23 is made of, for example, a titanium alloy.

[0043] The upper electrode 23a is an electrode disposed at a position farthest from the bottom 11b of the main body 10 in the head surface 21a. The lower electrode 23b is an electrode disposed at a position closest to the bottom 11b in the head surface 21a. The first intermediate electrode 23c is an electrode disposed at a position adjacent to the upper electrode 23a in the head surface 21a. The second intermediate electrode 23d is an electrode disposed at a position adjacent to the lower electrode 23b in the head surface 21a. That is, in the head surface 21a, the four electrodes 23 are disposed in parallel in the direction in which the upper electrode 23a and the lower electrode 23b are opposite to each other.

[0044] In addition, the planar shape of each electrode 23 included in the electrode group 22 is set, for example, as follows. The planar shape of the upper electrode 23a can be a shape including a curved portion convex toward the side of the lower electrode 23b. The planar shapes of the first intermediate electrode 23c and the second intermediate electrode 23d can both be so-called arch shapes including a curved portion concave toward the side of the upper electrode 23a and a curved portion convex toward the side of the lower electrode 23b. In addition, the planar shape of the lower electrode 23b can be a shape including a curved portion concave toward the side of the upper electrode 23a. Here, the curvatures of the curved portions included in each electrode 23 are set to be approximately equal to each other. That is, the distance between the electrodes 23 adjacent to each other is approximately constant over the entire curved portion. By setting the planar shape of each electrode 23 to such a shape, each electrode 23 can effectively flow current along the curved surface of the skin.

[0045] The distance between the electrodes 23 included in the electrode group 22 is set, for example, as follows. Figure 2As shown in the figure, the distance between the upper electrode 23a and the first intermediate electrode 23c is defined as the first distance L1, and the distance between the lower electrode 23b and the second intermediate electrode 23d is defined as the second distance L2. In addition, the distance between the intermediate electrodes, that is, the distance between the first intermediate electrode 23c and the second intermediate electrode 23d in this embodiment, is defined as the third distance L3. In this case, the values ​​of the first distance L1, the second distance L2, and the third distance L3 may be different from each other. For example, in this embodiment, the third distance L3 is longer than the first distance L1 and the second distance L2.

[0046] Next, the operation of the beauty device 1A will be described.

[0047] First, the user turns on the power by operating the power / mode switch 14a, and then selects a usage mode for beauty treatment using the beauty device 1A. In this embodiment, the control unit 13a can execute beauty treatment including the following steps as the first usage mode.

[0048] Figure 3A to Figure 3D This is a diagram showing an example of controlling each electrode 23 when performing beauty treatment based on the first usage mode in a time series. Figure 3A to Figure 3D , each electrode 23 is shown when viewed relative to the head surface 21 a of the head 20 .

[0049] Here, a channel formed by a combination of an electrode 23 set as a first positive electrode and an electrode 23 set as a first negative electrode among the electrodes 23 included in the electrode group 22 is defined as a "first channel". Figure 3A to Figure 3D In the first channel, the electrode 23 set as the first positive electrode is marked as “CH1+”, and the electrode 23 set as the first negative electrode is marked as “CH1-”.

[0050] Similarly, a channel formed by a combination of an electrode 23 set as the second positive electrode and an electrode 23 set as the second negative electrode among the electrodes 23 included in the electrode group 22 is defined as a "second channel". Figure 3A to Figure 3D In the second channel, the electrode 23 set as the second positive electrode is marked as "CH2+", and the electrode 23 set as the second negative electrode is marked as "CH2-".

[0051] In addition, Figure 3A to Figure 3D In the figure, the solid arrows roughly indicate the flow range of the current in the skin of the user when the first channel is energized, and the dotted arrows roughly indicate the flow range of the current in the skin of the user when the second channel is energized. In addition, the hollow arrows roughly indicate the range of the interference current generated when both the first channel and the second channel are energized.

[0052] In the first use mode, the control unit 13a executes the following steps: setting two or more positive electrodes and one or more negative electrodes from the electrodes 23 included in the electrode group 22, and changing the setting at predetermined intervals. Figure 3A to Figure 3D In the example shown, the control unit 13a selects two positive electrodes and two negative electrodes from the four electrodes 23. Then, the control unit 13a sets the combination of the first positive electrode and the first negative electrode as the first channel, and sets the combination of the second positive electrode and the second negative electrode as the second channel. Furthermore, the control unit 13a makes the characteristics of the currents applied to the first positive electrode and the second positive electrode different from each other at predetermined intervals.

[0053] In addition, in the first usage mode, it is assumed that a rectangular pulse wave current (rectangular AC voltage) with polarity reversed at a constant period is applied to the positive electrode of each set channel. At this time, the characteristic of the current that is different at the first positive electrode and the second positive electrode at specified intervals is the magnitude of the frequency. Here, the frequency of the current that can be applied by the electrode 23 is in the range of more than 1 Hz and less than 10 kHz. In addition, the difference in frequency between the current of the first positive electrode and the second positive electrode is in the range of more than 0.1 Hz and less than 100 kHz. Under this condition, the frequency of the current is set to a comfortable frequency for the user according to the state of the user's skin surface or the use site, etc. In the example of the present embodiment, a current of 1000 Hz is applied from the first positive electrode of the first channel, and a current of 1010 Hz is applied from the second positive electrode of the second channel. On the other hand, the first negative electrode of the first channel and the second negative electrode of the second channel are respectively set to GND.

[0054] Furthermore, in the first use mode, the control unit 13a sets the first channel and the second channel so that the flow range of the current in the first channel intersects with the flow range of the current in the second channel. Here, in the present embodiment, the flow ranges of the currents in the respective channels intersect means that at least one electrode 23 selected from the electrodes 23 constituting the other channel is arranged between the electrodes 23 constituting one channel.

[0055] Below, refer to Figure 3A to Figure 3D , the steps that can be executed by the control unit 13a in order to satisfy the above-mentioned conditions related to the first usage mode are described in time series.

[0056] Figure 3A1 is a diagram showing the setting state of the electrode 23 in the first stage of the first use mode. First, the control unit 13a sets the combination of the upper electrode 23a and the second intermediate electrode 23d among the four electrodes 23 included in the electrode group 22 as the first channel, and sets the combination of the lower electrode 23b and the first intermediate electrode 23c as the second channel. Thus, when a current is applied to each channel, the condition that the flow range of the current in each channel intersects is satisfied. On this basis, the control unit 13a sets the upper electrode 23a as the first positive electrode in the first channel and sets the second intermediate electrode 23d as the first negative electrode. In addition, the control unit 13a sets the first intermediate electrode 23c as the second positive electrode in the second channel and sets the lower electrode 23b as the second negative electrode.

[0057] According to the setting state of the electrode 23 in the first stage, first, a medium frequency current of 1000 Hz acts between the upper electrode 23a and the second intermediate electrode 23d. However, since the lower electrode 23b is also set as a negative electrode, a medium frequency current of 1000 Hz also acts between the upper electrode 23a and the lower electrode 23b. On the other hand, a medium frequency current of 1010 Hz acts between the first intermediate electrode 23c and the lower electrode 23b. However, since the second intermediate electrode 23d is also set as a negative electrode, a medium frequency current of 1010 Hz also acts between the first intermediate electrode 23c and the second intermediate electrode 23d. That is, a medium frequency stimulation is applied to the part of the user's skin corresponding to the flow range of the current between these electrodes.

[0058] Furthermore, in Phase 1, if Figure 3A As shown by the hollow arrow, a potential difference corresponding to the frequency difference of the voltage output from each electrode is generated between the upper electrode 23a and the first intermediate electrode 23c, and a low-frequency current of 10 Hz acts as an interference current. At this time, the first distance L1 between the upper electrode 23a and the first intermediate electrode 23c is shorter than the distance between the upper electrode 23a and the second intermediate electrode 23d. That is, the low-frequency stimulation is most obvious at the part of the user's skin corresponding to the flow range of the current between the upper electrode 23a and the first intermediate electrode 23c.

[0059] Figure 3B 1 is a diagram showing the setting state of the electrodes 23 in the second stage of the first use mode. As the control in the second stage following the first stage, the control unit 13a switches the polarity of each electrode 23 in the second channel while maintaining the setting state of the electrodes 23 in the first channel. That is, in the second channel, the first intermediate electrode 23c is set to the second negative electrode, and the lower electrode 23b is set to the second positive electrode.

[0060] According to the setting state of the electrode 23 in the second stage, first, a medium frequency current of 1000 Hz acts between the upper electrode 23a and the second intermediate electrode 23d. However, in the second stage, since the first intermediate electrode 23c is reset to the negative pole, a medium frequency current of 1000 Hz also acts between the upper electrode 23a and the first intermediate electrode 23c. On the other hand, a medium frequency current of 1010 Hz acts between the lower electrode 23b and the first intermediate electrode 23c. However, in the second stage, since the lower electrode 23b is reset to the positive pole, a medium frequency current of 1010 Hz also acts between the lower electrode 23b and the second intermediate electrode 23d. That is, the part of the user's skin corresponding to the flow range of the current between these electrodes is stimulated by the medium frequency.

[0061] Furthermore, in Phase 2, if Figure 3B As shown by the hollow arrow, a potential difference corresponding to the frequency difference of the voltage output from each electrode is generated between the upper electrode 23a and the lower electrode 23b, and a low-frequency current of 10 Hz acts as an interference current. That is, although a part of the user's skin is stimulated by the medium frequency, the low-frequency stimulation is obvious in the part corresponding to the flow range of the current between the upper electrode 23a and the lower electrode 23b, that is, the range of the entire electrode group 22.

[0062] Figure 3C 1 is a diagram showing the setting state of the electrode 23 in the third stage of the first use mode. As the control in the third stage following the second stage, the control unit 13a switches the polarity of each electrode 23 in the first channel while maintaining the setting state of the electrode 23 in the second channel. That is, in the first channel, the upper electrode 23a is set to the first negative electrode, and the second intermediate electrode 23d is set to the first positive electrode.

[0063] According to the setting state of the electrode 23 in the third stage, first, a medium frequency current of 1000 Hz acts between the upper electrode 23a and the second intermediate electrode 23d. However, in the third stage, since the second intermediate electrode 23d is reset to the positive pole, a medium frequency current of 1000 Hz also acts between the second intermediate electrode 23d and the first intermediate electrode 23c. On the other hand, a medium frequency current of 1010 Hz acts between the lower electrode 23b and the first intermediate electrode 23c. However, in the second stage, since the upper electrode 23a is reset to the negative pole, a medium frequency current of 1010 Hz also acts between the lower electrode 23b and the upper electrode 23a. That is, the part of the user's skin corresponding to the flow range of the current between these electrodes is stimulated by the medium frequency.

[0064] Furthermore, in Phase 3, if Figure 3CAs shown by the hollow arrow, a potential difference corresponding to the frequency difference of the voltage output from each electrode is generated between the second intermediate electrode 23d and the lower electrode 23b, and a low-frequency current of 10 Hz acts as an interference current. At this time, the second distance L2 between the second intermediate electrode 23d and the lower electrode 23b is shorter than the distance between the lower electrode 23b and the first intermediate electrode 23c. That is, the low-frequency stimulation is most obvious at the part of the user's skin corresponding to the flow range of the current between the second intermediate electrode 23d and the lower electrode 23b.

[0065] Figure 3D 1 is a diagram showing the setting state of the electrode 23 in the fourth stage of the first use mode. As the control in the fourth stage following the third stage, the control unit 13a switches the polarity of each electrode 23 in the second channel while maintaining the setting state of the electrode 23 in the first channel. That is, in the second channel, the lower electrode 23b is set to the second negative electrode, and the first intermediate electrode 23c is set to the second positive electrode.

[0066] According to the setting state of the electrode 23 in the fourth stage, first, a medium frequency current of 1000 Hz acts between the upper electrode 23a and the second intermediate electrode 23d. However, in the fourth stage, since the lower electrode 23b is reset to the negative pole, a medium frequency current of 1000 Hz also acts between the second intermediate electrode 23d and the lower electrode 23b. On the other hand, a medium frequency current of 1010 Hz acts between the lower electrode 23b and the first intermediate electrode 23c. However, in the fourth stage, since the first intermediate electrode 23c is reset to the positive pole, a medium frequency current of 1010 Hz also acts between the first intermediate electrode 23c and the upper electrode 23a. That is, the part of the user's skin corresponding to the flow range of the current between these electrodes is stimulated by the medium frequency.

[0067] Furthermore, in stage 4, if Figure 3D As shown by the hollow arrow, a potential difference corresponding to the frequency difference of the voltage output from each electrode is generated between the second intermediate electrode 23d and the first intermediate electrode 23c, and a low-frequency current of 10 Hz acts as an interference current. At this time, the third distance L3 between the first intermediate electrode 23c and the second intermediate electrode 23d is shorter than any of the distance between the second intermediate electrode 23d and the upper electrode 23a and the distance between the first intermediate electrode 23c and the lower electrode 23b. That is, the low-frequency stimulation is most obvious at a portion of the user's skin corresponding to the flow range of the current between the second intermediate electrode 23d and the first intermediate electrode 23c.

[0068] Furthermore, after the control of the fourth stage is completed, the control unit 13a may return to the control of the first stage and repeat a series of steps from the first stage to the fourth stage.

[0069] The control unit 13a controls each electrode 23 in such a manner that each process from the first stage to the fourth stage changes at a predetermined time interval. As described above, in each process from the first stage to the fourth stage, stimulation based on the medium frequency current and interference stimulation based on the interference current caused by the frequency difference are applied to the user's skin. In addition, in each process from the first stage to the fourth stage, the range of the interference current applied to the user's skin changes.

[0070] Here, the user is more likely to feel the stimulation generated by the interference current as a low-frequency current more strongly than the stimulation generated by the medium-frequency current. In contrast, in the first usage mode, during the beauty process, the range of applying the interference current is switched at a predetermined time interval, so that different stimulations are applied to the user's skin over time, resulting in a higher stimulation effect.

[0071] In addition, in the first usage mode, the size or depth of the range where the interference current is applied also changes in at least one of the processes from the first stage to the fourth stage. In the present embodiment, in the first stage and the third stage, the values ​​of the first distance L1 and the second distance L2 are equal to each other, and therefore, the size or depth of the range where the interference current is applied is also equal to each other. On the other hand, in the fourth stage, the third distance L3 is longer than the first distance L1 and the second distance L2, and therefore, the range where the interference current is applied is larger or deeper than that in the first stage and the third stage. Moreover, in the second stage, the interference current is applied between the electrodes 23 that are separated the farthest from each other, that is, the upper electrode 23a and the lower electrode 23b, and therefore, in each process, the range where the interference current is applied is the largest or deepest.

[0072] Therefore, in the second stage of applying the interfering current between the electrodes 23 separated relatively far, the facial muscles are vibrated more deeply and uniformly in a larger range by electrical stimulation. On the other hand, in the first, third and fourth stages of applying the interfering current between the electrodes 23 relatively close to each other, the interfering current acts on a part of the skin, so that a larger and shallower stimulation can be applied.

[0073] In addition, such a first usage mode is suitable as a beauty mode for promoting muscle movement on the user's skin. Here, the beauty mode for promoting muscle movement that can be applied in this embodiment can also be EMS (Electrical Muscle Stimulation) that uses electric current to excite nerves and produce muscle contraction. According to EMS, by using weak current, it is possible to stimulate muscles in various parts of the face to obtain a firming effect, etc.

[0074] Then, the user operates the power / mode switch 14a, selects the first usage mode, and then brings the electrode group 22 into contact with the user's skin to start beauty treatment. In addition, before beauty treatment based on the first usage mode, the user may operate the level switch 14b to adjust the power level, for example, appropriately change the magnitude of the voltage applied from the electrode 23, to a stimulation intensity appropriate for the user.

[0075] In the above, the case where the user selects the first usage mode and the control unit 13a performs beauty treatments based on the first usage mode has been described as an example. However, the beauty device 1A can also perform beauty treatments based on other usage modes as follows.

[0076] For example, in the first use mode, the frequency of the current applied from the first positive electrode of the first channel is set to 1000 Hz, and on the other hand, the frequency of the current applied from the second positive electrode of the second channel is set to 1010 Hz, and they are set to constant values. In contrast, in the second use mode that replaces the first use mode, the control unit 13a changes the frequency of the current applied from either the first positive electrode or the second positive electrode over time. Specifically, the frequency of the current applied from the first positive electrode is 1000 Hz and is a constant value as in the first use mode. On the other hand, the frequency of the current applied from the second positive electrode can be changed between 1000 Hz and 1010 Hz, for example. In this case, in the first use mode, the frequency of the interference current is approximately 10 Hz and is constant, whereas in the second use mode, the frequency of the interference current varies between approximately 1 Hz and 10 Hz at predetermined intervals. Therefore, according to the second use mode, a stimulation feeling that varies according to time is applied to the user's skin. For example, when the frequency of the interference current is about 1 Hz, a massage-like stimulation is applied to the user's skin every 1 second. On the other hand, when the frequency of the interfering current is about 10 Hz, tapping-like stimulation is applied to the user's skin 10 times per second.

[0077] Next, the effects of the beauty device 1A and the method for controlling the beauty device 1A will be described.

[0078] First, the beauty device 1A includes an electrode group 22 having three or more electrodes 23 for passing current through the skin of the user. In addition, the beauty device 1A includes a control unit 13a that sets two or more positive electrodes and one or more negative electrodes for the electrodes 23 included in the electrode group 22, and changes the setting at predetermined intervals. The control unit 13a makes the characteristics of the current applied to the first positive electrode and the second positive electrode selected from the two or more positive electrodes different from each other.

[0079] In addition, the control method of the beauty device 1A includes the following steps: setting two or more positive electrodes and one or more negative electrodes for the electrodes 23 included in the electrode group 22, and changing the setting at predetermined intervals. In this step, the characteristics of the current applied to the first positive electrode and the second positive electrode selected from the two or more positive electrodes are different from each other.

[0080] According to such a beauty device 1A and a control method of the beauty device 1A, as shown in FIG. FIG. 3A to FIG. 3D As illustrated by a series of steps, first, stimulation based on, for example, a medium frequency current can be applied to the user's skin between the electrodes 23 of a predetermined combination. Furthermore, not only stimulation based on a medium frequency current can be applied to the user's skin, but also interference stimulation based on an interference current caused by a frequency difference, the application range of which changes at predetermined intervals, can be applied to the user's skin. Thus, the beauty device 1A can automatically change the intensity of the stimulation or the range of the stimulation, and thus can apply a more satisfying stimulation to the user's skin.

[0081] As described above, according to the present embodiment, it is possible to provide a beauty device 1A that can provide a better feeling of use to the user's skin and a method for controlling the beauty device 1A.

[0082] In addition, in the beauty device 1A, the frequency of the current applied by the electrode 23 may be in the range of 1 Hz or more and less than 10 kHz.

[0083] According to the beauty device 1A, for example, when beautifying the facial skin of the user, it is possible to apply stimulation suitable for obtaining a firming effect on various parts of the facial muscles.

[0084] In addition, in the beauty device 1A, the control unit 13a can make the magnitudes of the frequencies of the currents of the first positive electrode and the second positive electrode different from each other.

[0085] According to the beauty device 1A, the control unit 13a can generate an interference current of a desired magnitude or within a desired range due to the difference between the frequency of the current generated by the first positive electrode and the frequency of the current generated by the second positive electrode.

[0086] In addition, in the beauty device 1A, the difference in frequency between the current of the first positive electrode and the current of the second positive electrode may be in the range of 0.1 Hz or more and less than 100 kHz.

[0087] According to the beauty device 1A, the control unit 13a can make the interfering current a low-frequency current that provides a relatively strong stimulation to the user's skin. For example, when the current applied between the electrodes 23 of the specified combination is a medium-frequency current, the medium-frequency current is clearly distinguished from the interfering current, which is a low-frequency current, and thus it is possible to facilitate the application of more varied stimulation to the user's skin.

[0088] Furthermore, in the beauty device 1A, the control unit 13a can change the frequency of the current of the first positive electrode or the second positive electrode with time.

[0089] According to the beauty device 1A, during the beauty treatment, the frequency of the interfering current is changed at predetermined time intervals, which is advantageous in providing a stimulation feeling that varies with time to the user's skin.

[0090] In addition, in the beauty device 1A, a first channel composed of a combination of a first positive electrode and a first negative electrode and a second channel composed of a combination of a second positive electrode and a second negative electrode are defined. In this case, the control unit 13a can set the first channel and the second channel so that the flow range of the current in the first channel and the flow range of the current in the second channel at least partially intersect.

[0091] According to the beauty device 1A, the difference between the frequency of the current by the first positive electrode and the frequency of the current by the second positive electrode can more reliably generate an interference current. In addition, the range of patterns that can be set for the size of the interference current or the range of applying the interference current can be expanded.

[0092] Furthermore, in the cosmetic device 1A, the inter-electrode distance between two electrodes 23 selected from the electrodes 23 included in the electrode group 22 may differ depending on the selected electrodes 23 .

[0093] When the distance between two electrodes 23 selected from the electrode group 22 is relatively short, the current flowing between these electrodes 23 acts on a part of the user's skin, so it is easy to obtain a large stimulation. On the other hand, when the distance between two electrodes 23 selected from the electrode group 22 is relatively long, the current flowing between these electrodes 23 acts on a large area of ​​the user's skin. Therefore, according to the beauty device 1A, by making the inter-electrode distances between the electrodes 23 different, it is possible to make the stimulation to the user's skin different.

[0094] In addition, the beauty device 1A may include a head 20 and a main body 10 that holds the head 20, and three or more electrodes 23 may be arranged in parallel on the head 20. The three or more electrodes 23 may be at least an upper electrode 23a, a lower electrode 23b, and a plurality of intermediate electrodes arranged between the upper electrode 23a and the lower electrode 23b. Here, the upper electrode 23a is the electrode 23 arranged farthest from the bottom 11b of the main body 10. The lower electrode 23b is the electrode 23 arranged closest to the bottom 11b of the main body 10.

[0095] According to the beauty device 1A, a beauty treatment can be performed while the user holds the beauty device 1A himself / herself, and stimulation that can provide a better feeling of use can be applied to the user's skin.

[0096] In addition, the distance between the upper electrode 23a and the intermediate electrode located closest to the upper electrode 23a is set as the first distance L1. The distance between the lower electrode 23b and the intermediate electrode located closest to the lower electrode 23b is set as the second distance L2. In addition, the distance between two adjacent intermediate electrodes is set as the third distance L3. In this case, in the beauty device 1A, the value of the third distance L3 may be different from the values ​​of the first distance L1 and the second distance L2.

[0097] According to the beauty device 1A, when a user performs beauty treatment while holding the beauty device 1A, the inter-electrode distances between the electrodes 23 can be made different, so that stimulation to the user's skin can be made different.

[0098] Here, the beauty device 1A can further expand its functions as follows.

[0099] Figure 4 It is a perspective view showing the beauty device 1A to which the expansion structure 30 is connected. Figure 5 This is a partially enlarged view of the expansion structure 30 as viewed from the same direction as when the front portion 11 c of the housing 11 of the main body 10 is viewed from the front.

[0100] The extended structure 30 has an extended electrode group 37 as an electrode group in addition to the electrode group 22 provided in the beauty device 1A itself. The extended structure 30 has a shape that is detachable from the top end portion on the top 11a side of the housing 11 of the beauty device 1A. The extended structure 30 has, for example, a structure body 31, a first arm 32, a second arm 33, a third arm 34, a fourth arm 35, and a connecting portion 36. In addition, the extended structure 30 may be a resin member in which all of these components are integrally formed.

[0101] The structure body 31 supports four arms from the first arm 32 to the fourth arm 35 at one distal end side, and supports the connection portion 36 at the other distal end side.

[0102] The first arm 32, the second arm 33, the third arm 34, and the fourth arm 35 each hold an electrode 38 at the tip on the side opposite to the side supported by the structural body 31. The first arm 32 and the second arm 33 are arms separated from each other by a certain interval and extending in the same direction. The third arm 34 is located on the side opposite to the side where the second arm 33 is located with respect to the first arm 32. Specifically, the third arm 34 is located at the same position as the part of the first arm 32 supported by the structural body 31, and is inclined in a manner that moves away from the first arm 32 as it moves from the side supported by the structural body 31 toward the tip on the opposite side. The fourth arm 35 is located on the side opposite to the side where the first arm 32 is located with respect to the second arm 33. Specifically, the fourth arm 35 is located at the same position as the part of the second arm 33 supported by the structural body 31, and is inclined in a manner that moves away from the second arm 33 as it moves from the side supported by the structural body 31 toward the tip on the opposite side. Furthermore, each of the first arm 32 , the second arm 33 , the third arm 34 , and the fourth arm 35 is bent so that the distal end portion thereof faces the front surface of the beauty device 1A.

[0103] In addition, the first arm 32 has a first electrode 38a at the first tip portion 32a. The second arm 33 has a second electrode 38b at the second tip portion 33a. The third arm 34 has a third electrode 38c at the third tip portion 34a. In addition, the fourth arm 35 has a fourth electrode 38d at the fourth tip portion 35a. The four electrodes 38 from the first electrode 38a to the fourth electrode 38d constitute an extended electrode group 37, which passes through each arm and is connected to a connector (not shown) provided on the back portion 11d of the beauty device 1A via a connecting portion 36.

[0104] The connection portion 36 is detachably connected to the distal end of the housing 11. The connection between the connection portion 36 and the housing 11 electrically connects the control unit 13a in the main body 10 and the electrodes 38 included in the extended electrode group 37 via connectors not shown.

[0105] With such a configuration, the user can attach the expansion structure 30 to the main body 10 of the beauty device 1A, thereby allowing the expansion electrode group 37 included in the expansion structure 30 to function in the same manner as the electrode group 22 included in the head 20 .

[0106] That is, the beauty device 1A includes an extended electrode group 37 having three or more electrodes 38 for passing current through the skin of the user. In addition, the beauty device 1A includes a control unit 13a that sets two or more positive electrodes and one or more negative electrodes for the electrodes 38 included in the extended electrode group 37, and changes the setting at predetermined intervals. The control unit 13a makes the characteristics of the current applied to the first positive electrode and the second positive electrode different from each other.

[0107] According to the beauty device 1A using such an extended structure 30, the user can perform the same beauty treatment as the beauty treatment performed by the electrode group 22 exemplified above using the extended electrode group 37. In particular, according to the arrangement of the four electrodes 38, namely the first electrode 38a to the fourth electrode 38d provided at the top end of each arm, the beauty device 1A can be suitably performed, for example, by bringing each electrode 38 into contact with the forehead of the user, such as near the hairline, to apply an electric current.

[0108] (Second embodiment)

[0109] In the first embodiment, the beauty device 1A is used as an example to perform beauty treatments while the user holds the beauty device 1A. In contrast, the beauty device of the present disclosure may be worn on the face of the user.

[0110] Figure 6 It is a perspective view of the beauty device 1B according to the second embodiment. Figure 7 This is a plan view of the beauty device 1B when the mask body 40 is viewed from the side worn on the face of the user. Figure 8 This is an exploded view of the beauty device 1B when the mask body 40 is viewed from the side worn on the face of the user.

[0111] The beauty device 1B is a device that is at least partially worn on the face of a user and provides a beauty effect by passing an electric current through the skin of the face as electrical stimulation. In addition, a beauty device that is worn on the face of a user like the beauty device 1B is sometimes also called a wearable beauty device or a beauty mask.

[0112] The beauty device 1B includes a mask body 40, a beauty structure 50, and a controller 60. Hereinafter, the top and bottom of the mask body 40 correspond to the upper side or the lower side in the vertical direction, based on the state in which the user of the beauty device 1B is in a standing position or a sitting position and faces straight ahead. In addition, the left and right sides of the mask body 40 correspond to the left cheek side or the right cheek side of the user's face.

[0113] When the user uses the beauty device 1B, the mask body 40 is worn on the user's face. The material of the mask body 40 is an elastic material such as silicone rubber. As a result, the mask body 40 becomes an elastic body with overall softness. When worn on the face, the inner surface 40a deforms to follow the shape of the face, so as to fit closely to the face. The inner surface 40a is the surface of the mask body 40 on the side opposite to the face when in use. In addition, in the present embodiment, the mask body 40 has a shape that can cover substantially the entire area of ​​the face except the eyes, nostrils, and mouth.

[0114] First, the mask body 40 has a pair of left and right first exposure holes 41, a second exposure hole 42, and a third exposure hole 43 as hole portions. The first exposure hole 41 is formed at the upper portion of the mask body 40, and exposes the user's eyes to the outside when the mask body 40 is worn on the face. The second exposure hole 42 is formed below the first exposure hole 41 of the mask body 40, and exposes the user's nostrils to the outside when the mask body 40 is worn on the face. The third exposure hole 43 is formed below the second exposure hole 42 of the mask body 40, and exposes the user's mouth to the outside when the mask body 40 is worn on the face.

[0115] In addition, the mask body 40 has a cheek cover 44, a forehead cover 45, a chin cover 46, and a nose cover 47 as a cover for covering the face. First, the forehead cover 45 is located above the first exposure hole 41 in the mask body 40, and contacts the forehead of the user when the mask body 40 is worn on the face. The chin cover 46 is located below the third exposure hole 43 in the mask body 40, and contacts the chin of the user when the mask body 40 is worn on the face. The nose cover 47 is located above the second exposure hole 42 in the mask body 40 so that the second exposure hole 42 faces outward and opens obliquely downward, and contacts the nose of the user when the mask body 40 is worn on the face. Furthermore, the cheek covering portion 44 is located below the first exposure hole 41 and is provided on each of the left and right sides of the nose covering portion 47, the second exposure hole 42, the third exposure hole 43 and the chin covering portion 46, and is opposite to either side of the user's left or right cheek when the mask body 40 is worn on the face.

[0116] In addition, the mask body 40 has a housing portion 44a for housing and holding the beauty structure 50 at a portion of the inner surface 40a that becomes the cheek cover portion 44. The housing portions 44a are provided in the cheek cover portions 44 provided one each on the left and right sides of the mask body 40. A groove portion 44b communicating with the housing portion 44a may be formed in the mask body 40. The groove portion 44b houses a portion of the cable 63 connected to the beauty structure 50.

[0117] Furthermore, the mask body 40 has a belt 48 that is wound around the head in order to maintain the wearing position when worn on the face. The belt 48 includes a first belt-shaped body 48a that is continuously provided on one of the left and right sides of the mask body 40, and a second belt-shaped body 48b that is continuously provided on the other of the left and right sides of the mask body 40. The first belt-shaped body 48a has a first surface connector 48c on the top side. On the other hand, the second belt-shaped body 48b has a second surface connector 48d on the top side. When the user wears the mask body 40 on the face, the first belt-shaped body 48a and the second belt-shaped body 48b are wound around the head from the side, and the first surface connector 48c is engaged with the second surface connector 48d on the back of the head. Thus, the belt 48 can make the mask body 40 be worn on the face while applying a desired tensile force to the mask body 40.

[0118] The beauty structure 50 is operated by being supplied with power to beautify the user's skin. In the present embodiment, two beauty structures 50 are provided. One first beauty structure 50a is attached to the housing 44a provided in the left cheek cover 44. The other second beauty structure 50b is attached to the housing 44a provided in the right cheek cover 44. The first beauty structure 50a and the second beauty structure 50b have the same structure and are symmetrical to each other.

[0119] The beauty structure 50 is detachable from the mask body 40. The user can perform maintenance on the mask body 40 and the beauty structure 50 separately by removing the beauty structure 50 from the housing 44a. However, the beauty structure 50 may be integrally provided on the mask body 40.

[0120] The beauty structure 50 includes an electrode group 52 having three or more electrodes 51, a silicone pad 53, and a housing 54. Hereinafter, the electrode group 52 included in the first beauty structure 50a is referred to as a first electrode group 52a, and the electrode group 52 included in the second beauty structure 50b is referred to as a second electrode group 52b.

[0121] As an example, the electrode group 52 includes four electrodes 51, namely, a first electrode 51a, a second electrode 51b, a third electrode 51c, and a fourth electrode 51d. The electrode 51 is made of, for example, a titanium alloy, and has a so-called button-shaped shape including a flat surface portion that contacts the user's skin. In addition, in the present embodiment, the planar shape of the electrode 51 is an elongated shape partially including a curved portion positioned along the outer peripheral shape of the beauty structure 50. However, the planar shape of the electrode 51 is not limited to such an elongated shape, and may be other shapes such as a circle.

[0122] Each electrode 51 can be set to a positive electrode or a negative electrode, that is, GND. When at least one electrode 51 is set to a positive electrode and at least one other electrode 51 is set to a negative electrode, a potential difference is generated between these electrodes 51. Then, by passing electricity between these electrodes 51 while the electrode group 52 is in contact with the skin, an alternating current with a specific frequency is applied to the skin.

[0123] Fig. 9 is with Figure 7 IX-IX section in FIG. 1 corresponds to the diagram showing the mask body 40 and the second beauty structure 50b as seen from the side where the mask body 40 and the second beauty structure 50b are worn on the face of the user.

[0124] In one beauty structure 50, a plurality of electrodes 51 are respectively arranged so as to span across different facial muscles of the user when the mask body 40 is worn on the face. The four electrodes 51 in this embodiment are respectively arranged so as to span across the orbicularis oculi, zygomaticus minor, zygomaticus major and levator labii superioris of the user. For example, the first electrode 51a can be arranged at a position from the eye to the vicinity of the outer corner of the eye. The second electrode 51b can be arranged near the inner corner of the eye. The third electrode 51c can be arranged near the corner of the mouth. In addition, the fourth electrode 51d can be arranged deep in the cheek.

[0125] In addition, in the beauty device 1B, when a polygon VP having the center of gravity of each surface of three or more electrodes 51 as a vertex is assumed, the lengths of the respective sides of the polygon VP may be different from each other. In other words, the distance between the first electrode 51a and the second electrode 51b, the distance between the second electrode 51b and the third electrode 51c, the distance between the third electrode 51c and the fourth electrode 51d, and the distance between the fourth electrode 51d and the first electrode 51a may have different values ​​from each other.

[0126] In the beauty structure 50, the silicone pad 53 is provided at a position directly opposite to the face when the mask body 40 is worn on the face. The surface shape of the silicone pad 53 opposite to the face is a roughly circular plate shape along the inner surface 40a of the mask body 40. The silicone pad 53 is soft, so it is not easy to cause discomfort to the user even if it contacts the face. In addition, the silicone pad 53 has a plurality of through holes 53a corresponding to the configuration of each electrode 51 so that a part of the electrode 51 in contact with the user's face is exposed in a convex shape.

[0127] The outer shell 54 is made of resin, for example, and holds the electrode group 52 and the silicone pad 53. When the beauty structure 50 is attached to the housing portion 44a of the mask body 40, a portion of the outer shell 54 engages with a portion of the housing portion 44a.

[0128] The controller 60 supplies power to the electrode group 52 provided in the beauty structure 50 through the operation of the user, and controls the operation of the beauty structure 50. The controller 60 includes a controller body 61, a cover 62, and a cable 63, for example.

[0129] The controller body 61 includes a battery 64 as a power supply unit, a control substrate 65 on which a control unit 65a is mounted, and a switch button 66 as an operating unit. The battery 64 is electrically connected to the control substrate 65. The control substrate 65 is electrically connected to a connector 67 partially exposed to the outside from the controller body 61. The switch button 66 is operated at least when switching on / off the power supply, switching the use mode, or adjusting the power supply level. In addition, the control unit 65a is not limited to a specially designed hardware circuit that realizes its functions, and its functions can also be realized by a processor executing a program stored in a memory.

[0130] The cover 62 covers the connector 67 provided on the controller body 61 and is detachably mounted on the controller body 61. When the cover 62 is mounted on the controller body 61, a connector (not shown) provided inside the cover 62 is fitted with the connector 67 of the controller body 61.

[0131] The cable 63 electrically connects the electrode group 52 provided in the beauty structure 50 to the controller 60. One end of the cable 63 is connected to the electrode group 52, and the other end of the cable 63 is connected to the connector of the cover 62. The electrode group 52 is electrically connected to the battery 64 and the control substrate 65 built in the controller body 61 via the cable 63.

[0132] The above-described configuration of the controller 60 is merely an example. For example, the cable 63 may be detachable from the beauty structure 50. In addition, switches for switching the power source and the like may be provided in the beauty structure 50 itself.

[0133] Next, the operation of the beauty device 1B will be described.

[0134] First, the user fits the connector of the cover 62 into the connector 67 of the controller body 61, thereby electrically connecting the battery 64 and the control substrate 65 on the controller body 61 side to the electrodes 51 on the beauty structure 50 side via the cable 63. Then, the user attaches the pair of beauty structures 50 to the mask body 40, thereby completing the preparation of the beauty device 1B before beauty treatment.

[0135] Next, the user pulls the first belt 48a and the second belt 48b from the side to the back while winding them around the head, while making the inner surface 40a of the mask body 40 contact the face, and engages the first surface connector 48c and the second surface connector 48d at the back of the head. Thus, the belt 48 applies a desired tensile force to the mask body 40, and the mask body 40 is worn on the face.

[0136] Next, the user turns on the power by operating the switch button 66, and then selects a usage mode for beauty treatment using the beauty device 1B. In this embodiment, the control unit 65a can perform beauty treatment including the following steps for each beauty structure 50 as a first usage mode.

[0137] FIG. 10A to FIG. 10D This is a diagram showing an example of controlling each electrode 51 when performing beauty treatment based on the first usage mode in a time series. FIG. 10A to FIG. 10D As an example, Fig. 9 The positional relationship of the electrodes 51 in the second beauty structure 50b is shown.

[0138] Here, a channel formed by a combination of an electrode 51 set as a first positive electrode and an electrode 51 set as a first negative electrode among the electrodes 51 included in the electrode group 52 is defined as a "first channel". FIG. 10A to FIG. 10D In the first channel, the electrode 51 set as the first positive electrode is marked as “CH1+”, and the electrode 51 set as the first negative electrode is marked as “CH1-”.

[0139] Similarly, a channel formed by a combination of an electrode 51 set as the second positive electrode and an electrode 51 set as the second negative electrode among the electrodes 51 included in the electrode group 52 is defined as a "second channel". FIG. 10A to FIG. 10D In the second channel, the electrode 51 set as the second positive electrode is marked as “CH2+”, and the electrode 51 set as the second negative electrode is marked as “CH2-”.

[0140] In addition, FIG. 10A to FIG. 10D In the figure, the solid arrows roughly indicate the flow range of the current in the skin of the user when the first channel is energized, and the dotted arrows roughly indicate the flow range of the current in the skin of the user when the second channel is energized. In addition, the hollow arrows roughly indicate the range of the interference current generated when both the first channel and the second channel are energized.

[0141] In the first use mode, the control unit 65a executes the following steps: setting two or more positive electrodes and one or more negative electrodes from the electrodes 51 included in the electrode group 52, and changing the setting at predetermined intervals. FIG. 10A to FIG. 10DIn the example shown, the control unit 65a selects two positive electrodes and one negative electrode from the four electrodes 23. Then, the control unit 65a sets the combination of the first positive electrode and the negative electrode as the first channel, and sets the combination of the second positive electrode and the negative electrode as the second channel. That is, in the first use mode, one electrode 51 set as the negative electrode is a common GND in the first channel and the second channel. In addition, the control unit 65a makes the characteristics of the current applied to each of the first positive electrode and the second positive electrode different from each other at predetermined intervals.

[0142] In addition, in the first usage mode, it is assumed that a rectangular pulse wave current (rectangular alternating voltage) with polarity reversed at a constant period is applied to the positive electrode of each set channel. At this time, the characteristic of the current that is different at the first positive electrode and the second positive electrode at specified intervals is the magnitude of the frequency. Here, the frequency of the current that can be applied by the electrode 51 is in the range of more than 1 Hz and less than 10 kHz. In addition, the difference in frequency between the current of the first positive electrode and the second positive electrode is in the range of more than 0.1 Hz and less than 100 kHz. Under this condition, the frequency of the current is set to a comfortable frequency for the user according to the state of the user's skin surface or the use site, etc. In the example of the present embodiment, a current of 1000 Hz is applied from the first positive electrode of the first channel, and a current of 1010 Hz is applied from the second positive electrode of the second channel.

[0143] Below, refer to FIG. 10A to FIG. 10D , the steps that can be executed by the control unit 65a in order to satisfy the above-mentioned conditions related to the first usage mode are described in time series.

[0144] Fig. 10A 1 is a diagram showing the setting state of the electrode 51 in the first stage of the first use mode. First, the control unit 65a sets the combination of the first electrode 51a and the fourth electrode 51d among the four electrodes 51 included in the electrode group 52 as the first channel, and sets the combination of the second electrode 51b and the fourth electrode 51d as the second channel. On this basis, the control unit 65a sets the first electrode 51a of the first channel as the first positive electrode, and sets the second electrode 51b of the second channel as the second positive electrode. In addition, the control unit 13a sets the fourth electrode 51d as the negative electrode shared by the first channel and the second channel.

[0145] According to the setting state of the electrode 51 in the first stage, first, a medium frequency current of 1000 Hz acts between the first electrode 51a and the fourth electrode 51d. On the other hand, a medium frequency current of 1010 Hz acts between the second electrode 51b and the fourth electrode 51d. That is, the portion of the user's skin corresponding to the flow range of the current between these electrodes is stimulated by the medium frequency.

[0146] Furthermore, in Phase 1, if Fig. 10AAs shown by the hollow arrow, a potential difference corresponding to the frequency difference of the voltage output from each electrode is generated between the first electrode 51a and the second electrode 51b, and a low-frequency current of 10 Hz acts as an interference current. That is, a low-frequency stimulation is applied to a portion of the user's skin corresponding to the flow range of the current between the first electrode 51a and the second electrode 51b. In this case, by applying the low-frequency stimulation, for example, the muscles of the user's eyes are activated.

[0147] Fig. 10B : is a diagram showing the setting state of the electrode 51 in the second stage of the first use mode. As the control of the second stage following the first stage, the control unit 65a sets the combination of the first electrode 51a and the third electrode 51c of the four electrodes 51 included in the electrode group 52 as the first channel, and sets the combination of the first electrode 51a and the second electrode 51b as the second channel. On this basis, the control unit 65a sets the third electrode 51c of the first channel as the first positive electrode, and sets the second electrode 51b of the second channel as the second positive electrode. In other words, the second positive electrode of the second channel maintains the setting in the first stage. In addition, the control unit 65a sets the first electrode 51a as the negative electrode shared by the first channel and the second channel.

[0148] According to the setting state of the electrode 51 in the second stage, first, a medium frequency current of 1000 Hz acts between the third electrode 51c and the first electrode 51a. On the other hand, a medium frequency current of 1010 Hz acts between the second electrode 51b and the first electrode 51a. That is, the portion of the user's skin corresponding to the flow range of the current between these electrodes is stimulated by the medium frequency.

[0149] Furthermore, in Phase 2, if Fig. 10B As shown by the hollow arrow, a potential difference corresponding to the frequency difference of the voltage output from each electrode is generated between the second electrode 51b and the third electrode 51c, and a low-frequency current of 10 Hz acts as an interference current. That is, a low-frequency stimulation is applied to a portion of the user's skin corresponding to the flow range of the current between the second electrode 51b and the third electrode 51c. In this case, by applying the low-frequency stimulation, for example, the muscles near the nose groove, the nasolabial folds, or under the eyes of the user are activated.

[0150] Fig. 10C: is a diagram showing the setting state of the electrode 51 in the third stage of the first use mode. As the control of the third stage following the second stage, the control unit 65a sets the combination of the third electrode 51c and the second electrode 51b among the four electrodes 51 included in the electrode group 52 as the first channel, and sets the combination of the second electrode 51b and the fourth electrode 51d as the second channel. On this basis, the control unit 65a sets the third electrode 51c of the first channel as the first positive electrode, and sets the fourth electrode 51d of the second channel as the second positive electrode. In other words, the first positive electrode of the first channel maintains the setting in the second stage. In addition, the control unit 65a sets the second electrode 51b as the negative electrode shared by the first channel and the second channel.

[0151] According to the setting state of the electrode 51 in the third stage, first, a medium frequency current of 1000 Hz acts between the third electrode 51c and the second electrode 51b. On the other hand, a medium frequency current of 1010 Hz acts between the fourth electrode 51d and the second electrode 51b. That is, the portion of the user's skin corresponding to the flow range of the current between these electrodes is stimulated by the medium frequency.

[0152] Furthermore, in stage 3, if Fig. 10C As shown by the hollow arrow, a potential difference corresponding to the frequency difference of the voltage output from each electrode is generated between the third electrode 51c and the fourth electrode 51d, and a low-frequency current of 10 Hz acts as an interference current. That is, a low-frequency stimulation is applied to a portion of the user's skin corresponding to the flow range of the current between the third electrode 51c and the fourth electrode 51d. In this case, by applying the low-frequency stimulation, for example, the muscles of the user's cheek are activated.

[0153] Fig. 10D : is a diagram showing the setting state of the electrode 51 in the fourth stage of the first use mode. As the control of the fourth stage following the third stage, the control unit 65a sets the combination of the first electrode 51a and the third electrode 51c among the four electrodes 51 included in the electrode group 52 as the first channel, and sets the combination of the fourth electrode 51d and the third electrode 51c as the second channel. On this basis, the control unit 65a sets the first electrode 51a of the first channel as the first positive electrode, and sets the fourth electrode 51d of the second channel as the second positive electrode. In other words, the second positive electrode of the second channel maintains the setting in the third stage. In addition, the control unit 65a sets the third electrode 51c as the negative electrode shared by the first channel and the second channel.

[0154] According to the setting state of the electrode 51 in the fourth stage, first, a medium frequency current of 1000 Hz acts between the first electrode 51a and the third electrode 51c. On the other hand, a medium frequency current of 1010 Hz acts between the fourth electrode 51d and the third electrode 51c. That is, the portion of the user's skin corresponding to the flow range of the current between these electrodes is stimulated by the medium frequency.

[0155] Furthermore, in stage 4, if Fig. 10D As shown by the hollow arrow, a potential difference corresponding to the frequency difference of the voltage output from each electrode is generated between the first electrode 51a and the fourth electrode 51d, and a low-frequency current of 10 Hz acts as an interference current. That is, a low-frequency stimulation is applied to a portion of the user's skin corresponding to the flow range of the current between the first electrode 51a and the fourth electrode 51d. In this case, by applying the low-frequency stimulation, for example, the muscles near the alar groove of the user or the cheek are activated.

[0156] Furthermore, after the control of the fourth stage is completed, the control unit 65a may return to the control of the first stage and repeat a series of steps from the first stage to the fourth stage.

[0157] The control unit 65a controls each electrode 51 in such a manner that each process from the first stage to the fourth stage changes at a predetermined time interval. As described above, in each process from the first stage to the fourth stage, stimulation based on the medium frequency current and interference stimulation based on the interference current caused by the frequency difference are applied to the user's skin. In addition, in each process from the first stage to the fourth stage, the range of the interference current passing through the user's skin changes.

[0158] In the first usage mode, during the beauty treatment, the range of the interfering current application is switched at predetermined intervals, so that stimulation that varies with time is applied to the user's skin, and as a result, a high stimulation effect is easily obtained.

[0159] In addition, in the present embodiment, the lengths of the respective sides of the polygon VP having the centroids of the surfaces of the four electrodes 51 as vertices are different from each other. That is, in the first usage mode, the size / depth of the range in which the interfering current is applied also changes in each process from the first stage to the fourth stage. Thus, for example, in the third stage in which an interfering current is applied between the third electrode 51c and the fourth electrode 51d which are separated relatively far, the facial muscles are vibrated uniformly over a larger range by electrical stimulation. On the other hand, in the first stage in which an interfering current is applied between the first electrode 51a and the second electrode 51b which are relatively close, the interfering current acts on a local part of the skin, and therefore, a greater stimulation can be applied.

[0160] In addition, the first usage mode may be a beauty mode for promoting muscle movement on the user's skin, specifically, EMS, similar to the first mode of the beauty device 1A according to the first embodiment.

[0161] Then, the user operates the switch button 66 to select the first use mode as the use mode. Thus, the beauty treatment based on the first use mode is started in the first electrode group 52a and the second electrode group 52b, respectively. In addition, before the beauty treatment based on the first use mode, the user can also adjust the power-on level, for example, appropriately change the magnitude of the voltage applied from the electrode 51, to a stimulation intensity suitable for the user by operating the switch button 66.

[0162] In the above, the case where the user selects the first usage mode and the control unit 65a performs beauty treatments based on the first usage mode has been described as an example. However, the beauty device 1B can also perform beauty treatments based on other usage modes as follows.

[0163] For example, in the first use mode, only one cathode electrode common to the first channel and the second channel is set. In contrast, in the second use mode replacing the first use mode, only two cathode electrodes common to the first channel and the second channel are set.

[0164] FIG. 11A to FIG. 11D This is a diagram showing a control example of each electrode 51 when beauty treatment is performed based on the second usage mode in a time series. FIG. 11A to FIG. 11D The depiction in corresponds to the first usage mode. FIG. 10A to FIG. 10D The description in .

[0165] In the second use mode, the control unit 65a also executes the following steps: setting two or more positive electrodes and one or more negative electrodes from the electrodes 51 included in the electrode group 52, and changing the setting at predetermined intervals. FIG. 11A to FIG. 11D In the example shown, the control unit 65a selects two positive electrodes and two negative electrodes from the four electrodes 51, respectively. Then, the control unit 65a sets the combination of the first positive electrode and the first negative electrode as the first channel, and sets the combination of the second positive electrode and the second negative electrode as the second channel. In addition, the control unit 65a makes the characteristics of the current applied by the first positive electrode and the second positive electrode different from each other at a predetermined time interval. In addition, the conditions such as the type and frequency of the current applied from the electrode 51 are set to be the same as those in the first usage mode. Moreover, in the second usage mode, the control unit 65a sets the first channel and the second channel so that the flow range of the current in the first channel intersects the flow range of the current in the second channel.

[0166] Below, refer to FIG. 11A to FIG. 11D , the steps that can be executed by the control unit 65a in order to satisfy the above-mentioned conditions related to the second usage mode are described in time series.

[0167] Fig.11A : is a diagram showing the setting state of the electrode 51 in the first stage of the second use mode. First, the control unit 65a sets the combination of the first electrode 51a and the third electrode 51c of the four electrodes 51 included in the electrode group 52 as the first channel, and sets the combination of the second electrode 51b and the fourth electrode 51d as the second channel. Thus, when a current is applied to each channel, the condition that the flow range of the current in each channel intersects is satisfied. On this basis, the control unit 65a sets the first electrode 51a as the first positive electrode in the first channel and sets the third electrode 51c as the first negative electrode. In addition, the control unit 65a sets the second electrode 51b as the second positive electrode in the second channel and sets the fourth electrode 51d as the second negative electrode.

[0168] According to the setting state of the electrode 51 in the first stage, first, a medium frequency current of 1000 Hz acts between the first electrode 51a and the third electrode 51c. However, since the fourth electrode 51d is also set as a negative electrode, a medium frequency current of 1000 Hz also acts between the first electrode 51a and the fourth electrode 51d. On the other hand, a medium frequency current of 1010 Hz acts between the second electrode 51b and the fourth electrode 51d. However, since the third electrode 51c is also set as a negative electrode, a medium frequency current of 1010 Hz also acts between the second electrode 51b and the third electrode 51c. In other words, a portion of the user's skin corresponding to the flow range of the current between these electrodes is subjected to medium frequency stimulation.

[0169] Furthermore, in Phase 1, if Fig.11A As shown by the hollow arrow, a potential difference corresponding to the frequency difference of the voltage output from each electrode is generated between the first electrode 51a and the second electrode 51b, and a low-frequency current of 10 Hz acts as an interference current. That is, a low-frequency stimulation is applied to a portion of the user's skin corresponding to the flow range of the current between the first electrode 51a and the second electrode 51b. In this case, by applying the low-frequency stimulation, for example, the muscles of the user's eyes are activated.

[0170] Fig. 11B : is a diagram showing the setting state of the electrode 51 in the second stage of the second use mode. As the control in the second stage following the first stage, the control unit 65a switches the polarity of each electrode 51 in the first channel while maintaining the setting state of the electrode 51 in the second channel. That is, in the first channel, the first electrode 51a is set to the first negative electrode, and the third electrode 51c is set to the first positive electrode.

[0171] According to the setting state of the electrode 51 in the second stage, first, a medium frequency current of 1000 Hz acts between the third electrode 51c and the first electrode 51a. However, in the second stage, since the third electrode 51c is reset to the positive pole, a medium frequency current of 1000 Hz also acts between the third electrode 51c and the fourth electrode 51d. On the other hand, a medium frequency current of 1010 Hz acts between the second electrode 51b and the fourth electrode 51d. However, in the second stage, since the first electrode 51a is reset to the negative pole, a medium frequency current of 1010 Hz also acts between the second electrode 51b and the first electrode 51a. That is, the part of the user's skin corresponding to the flow range of the current between these electrodes is stimulated by the medium frequency.

[0172] Furthermore, in Phase 2, if Fig. 11B As shown by the hollow arrow, a potential difference corresponding to the frequency difference of the voltage output from each electrode is generated between the second electrode 51b and the third electrode 51c, and a low-frequency current of 10 Hz acts as an interference current. That is, a low-frequency stimulation is applied to a portion of the user's skin corresponding to the flow range of the current between the second electrode 51b and the third electrode 51c. In this case, by applying the low-frequency stimulation, for example, the muscles near the nose groove, the nasolabial folds, or under the eyes of the user are activated.

[0173] Fig. 11C : is a diagram showing the setting state of the electrode 51 in the third stage of the second use mode. As the control in the third stage following the second stage, the control unit 65a switches the polarity of each electrode 51 in the second channel while maintaining the setting state of the electrode 51 in the first channel. That is, in the second channel, the second electrode 51b is set to the second negative electrode, and the fourth electrode 51d is set to the second positive electrode.

[0174] According to the setting state of the electrode 51 in the third stage, first, a medium frequency current of 1000 Hz acts between the third electrode 51c and the first electrode 51a. However, in the third stage, since the second electrode 51b is reset to the negative pole, a medium frequency current of 1000 Hz also acts between the third electrode 51c and the second electrode 51b. On the other hand, a medium frequency current of 1010 Hz acts between the fourth electrode 51d and the second electrode 51b. However, in the third stage, since the fourth electrode 51d is reset to the positive pole, a medium frequency current of 1010 Hz also acts between the fourth electrode 51d and the first electrode 51a. That is, the part of the user's skin corresponding to the flow range of the current between these electrodes is stimulated by the medium frequency.

[0175] Furthermore, in stage 3, if Fig. 11CAs shown by the hollow arrow, a potential difference corresponding to the frequency difference of the voltage output from each electrode is generated between the third electrode 51c and the fourth electrode 51d, and a low-frequency current of 10 Hz acts as an interference current. That is, a low-frequency stimulation is applied to a portion of the user's skin corresponding to the flow range of the current between the third electrode 51c and the fourth electrode 51d. In this case, by applying the low-frequency stimulation, for example, the muscles of the user's cheek are activated.

[0176] Fig.11D : is a diagram showing the setting state of the electrode 51 in the fourth stage of the second use mode. As the control in the fourth stage following the third stage, the control unit 65a switches the polarity of each electrode 51 in the first channel while maintaining the setting state of the electrode 51 in the second channel. That is, in the first channel, the first electrode 51a is set to the first positive electrode, and the third electrode 51c is set to the first negative electrode.

[0177] According to the setting state of the electrode 51 in the fourth stage, first, a medium frequency current of 1000 Hz acts between the first electrode 51a and the third electrode 51c. However, in the fourth stage, since the first electrode 51a is reset to the positive pole, a medium frequency current of 1000 Hz also acts between the first electrode 51a and the second electrode 51b. On the other hand, a medium frequency current of 1010 Hz acts between the fourth electrode 51d and the second electrode 51b. However, in the fourth stage, since the third electrode 51c is reset to the negative pole, a medium frequency current of 1010 Hz also acts between the fourth electrode 51d and the third electrode 51c. That is, the part of the user's skin corresponding to the flow range of the current between these electrodes is stimulated by the medium frequency.

[0178] Furthermore, in stage 4, if Fig.11D As shown by the hollow arrow, a potential difference corresponding to the frequency difference of the voltage output from each electrode is generated between the first electrode 51a and the fourth electrode 51d, and a low-frequency current of 10 Hz acts as an interference current. That is, a low-frequency stimulation is applied to a portion of the user's skin corresponding to the flow range of the current between the first electrode 51a and the fourth electrode 51d. In this case, by applying the low-frequency stimulation, for example, the muscles near the alar groove of the user or the cheek are activated.

[0179] Furthermore, the control unit 65a may return to the control of the first stage after the control of the fourth stage is completed, and repeat a series of steps from the first stage to the fourth stage.

[0180] Here, when comparing the first usage mode and the second usage mode, the ranges in which the interference current is generated are the same. However, in the second usage mode, the number of settings of the negative electrode, i.e., GND, is larger than that in the first usage mode, so the branches of the intermediate frequency current become more, and the stimulation generated by the interference current becomes weaker accordingly. Therefore, when the user wants to further suppress the intensity of the stimulation during beauty treatment, the second usage mode can be selected instead of the first usage mode.

[0181] The second usage mode has been described above. However, similarly to the first usage mode, in the second usage mode as well, the control unit 65a may change the frequency of the current applied from either the first positive electrode or the second positive electrode over time.

[0182] Next, the effects of the beauty device 1B and the method for controlling the beauty device 1B will be described.

[0183] First, the beauty device 1B includes an electrode group 52 having three or more electrodes 51 for passing current through the skin of the user. In addition, the beauty device 1A includes a control unit 65a that sets two or more positive electrodes and one or more negative electrodes for the electrodes 51 included in the electrode group 52, and changes the setting at predetermined intervals. The control unit 65a controls the frequencies of the currents applied to the first positive electrode and the second positive electrode selected from the two or more positive electrodes to be different from each other.

[0184] In addition, the control method of the beauty device 1B includes the following steps: setting two or more positive electrodes and one or more negative electrodes for the electrodes 51 included in the electrode group 52, and changing the setting at predetermined intervals. In this step, the control conditions of the frequency of the current applied to the first positive electrode and the second positive electrode selected from the two or more positive electrodes are different from each other.

[0185] According to such a beauty device 1B and a control method of the beauty device 1B, as shown in FIG. FIG. 10A to FIG. 10D As illustrated by a series of steps, for example, first, stimulation based on a medium frequency current can be applied to the user's skin between the electrodes 51 of a predetermined combination. Furthermore, not only stimulation based on a medium frequency current can be applied to the user's skin, but also interference stimulation based on an interference current caused by a frequency difference, the application range of which changes at predetermined intervals, can be applied to the user's skin. Thus, the beauty device 1B can automatically change the intensity of the stimulation or the range of the stimulation, and thus can apply a more satisfying stimulation to the user's skin.

[0186] As described above, according to the present embodiment, it is possible to provide a beauty device 1B that can provide a better feeling of use to the user's skin and a method for controlling the beauty device 1B.

[0187] In addition, in the beauty device 1B, the frequency of the current applied by the electrode 51 may be in the range of 1 Hz or more and less than 10 kHz.

[0188] According to the beauty device 1B, it is possible to apply stimulation suitable for obtaining a tightening effect on various parts of the user's facial muscles.

[0189] In the beauty device 1B, the control unit 65a may make the magnitudes of the frequencies of the currents of the first positive electrode and the second positive electrode different from each other.

[0190] According to the beauty device 1B, the control unit 65a can generate an interference current of a desired magnitude or within a desired range due to the difference between the frequency of the current generated by the first positive electrode and the frequency of the current generated by the second positive electrode.

[0191] In the beauty device 1B, the difference in frequency between the current of the first positive electrode and the current of the second positive electrode may be in the range of 0.1 Hz or more and less than 100 kHz.

[0192] According to the beauty device 1B, the control unit 65a can make the interfering current a low-frequency current that provides a relatively strong stimulation to the user's skin. For example, when the current applied between the electrodes 51 of the specified combination is a medium-frequency current, the medium-frequency current is clearly distinguished from the interfering current, which is a low-frequency current, and thus it is possible to provide a more varied stimulation to the user's skin.

[0193] Furthermore, in the beauty device 1B, the control unit 65a may change the frequency of the current of the first positive electrode or the second positive electrode with time.

[0194] According to the beauty device 1B, during the beauty treatment, the frequency of the interfering current varies at predetermined intervals, which is advantageous in providing stimulation with more minutely varying intensity to the user's skin.

[0195] In addition, in the beauty device 1B, a first channel composed of a combination of a first positive electrode and a first negative electrode and a second channel composed of a combination of a second positive electrode and a second negative electrode are defined. In this case, the control unit 65a may set the first channel and the second channel so that the flow range of the current in the first channel and the flow range of the current in the second channel at least partially intersect.

[0196] According to the beauty device 1B, the difference between the frequency of the current by the first positive electrode and the frequency of the current by the second positive electrode can more reliably generate an interference current. In addition, the range of patterns that can be set for the size of the interference current or the range of applying the interference current can be expanded.

[0197] Furthermore, in the cosmetic device 1B, the inter-electrode distance between two electrodes 51 selected from the electrodes 51 included in the electrode group 52 may be different depending on the selected electrodes 51 .

[0198] When the distance between two electrodes 51 selected from the electrode group 52 is relatively short, the current flowing between these electrodes 51 acts on a part of the user's skin, so it is easy to obtain a large stimulation. On the other hand, when the distance between two electrodes 51 selected from the electrode group 52 is relatively long, the current flowing between these electrodes 51 easily acts on a larger range of the user's skin. Therefore, according to the beauty device 1B, by making the inter-electrode distances between the electrodes 51 different, it is possible to make the stimulation to the user's skin different.

[0199] Furthermore, the beauty device 1B may include a mask body 40 to be worn on the face of the user, and the electrode group 52 may be provided on the mask body 40 corresponding to the positions of the left and right cheeks of the user.

[0200] According to the beauty device 1B, by being worn on the face of the user, stimulation that provides a better feeling of use can be applied to the user's skin.

[0201] In addition, in the cosmetic device 1B, three or more electrodes 51 may be arranged at positions straddling at least one muscle selected from the orbicularis oculi muscle, the zygomaticus minor muscle, the zygomaticus major muscle, and the levator labii superioris muscle.

[0202] According to the cosmetic device 1B, the control unit 65a can easily select an appropriate electrode 51 from the plurality of electrodes 51 so that the range of current flow is more consistent with the part of the face to which stimulation is desired.

[0203] Furthermore, in the cosmetic device 1B, when a polygon VP having the centers of gravity of the surfaces of three or more electrodes 51 as vertices is assumed, the lengths of the respective sides of the polygon VP may be different from each other.

[0204] According to the beauty device 1B, since the inter-electrode distances between the electrodes 51 are different, it is effective as a condition for making the stimulation to the user's skin different, especially when the beauty device 1B is worn on the user's face.

[0205] Furthermore, the beauty device 1A or 1B according to each embodiment may be defined as follows.

[0206] The beauty device 1A and the like may include an electrode group unit having three or more electrodes that pass currents with different characteristics through the skin of the user. In addition, the beauty device 1A and the like may include an electrode setting control unit that sets two or more positive electrodes and one or more negative electrodes for the electrodes included in the electrode group unit and changes the setting at predetermined intervals. The electrode setting control unit may select two or more positive electrodes and control the current characteristics applied to each of the selected electrodes so that the current characteristics change over time.

[0207] Furthermore, in the beauty device 1A and the like, the characteristic of the electric current may be a frequency.

[0208] Furthermore, in the beauty device 1A and the like, in the electrode group unit, the inter-electrode distances of the respective electrodes may be different from each other.

[0209] In addition, in the beauty device 1A, etc., the electrode setting control unit can perform stronger and shallower stimulation between electrodes whose inter-electrode distances are closer in the electrode group, and perform weaker and deeper stimulation between electrodes whose inter-electrode distances are farther from each other. That is, in the beauty device 1A, etc., the electrode setting control unit can perform stronger and shallower stimulation between electrodes whose inter-electrode distances are closer in the electrode group than between electrodes whose inter-electrode distances are farther from each other. In addition, in the beauty device 1A, etc., the electrode setting control unit can perform weaker and deeper stimulation between electrodes whose inter-electrode distances are farther from each other in the electrode group than between electrodes whose inter-electrode distances are closer from each other.

[0210] Furthermore, the beauty device 1A and the like may be a handheld beauty device or a mask-type beauty device that can be worn on the face.

[0211] Furthermore, in the beauty device 1A and the like, the electric current may be a low-frequency current, a medium-frequency current, or an interfering low-frequency current.

[0212] Here, the electrode group unit is a component corresponding to the electrode group 22 having three or more electrodes 23 or the electrode group 52 having three or more electrodes 51. In addition, the electrode setting control unit is a component that can be included in the control unit 13a or the control unit 65a.

[0213] In addition, the above-mentioned embodiments are for illustrating the technology of the present disclosure, and therefore, various changes, substitutions, additions, omissions, etc. can be made within the scope of the claims or their equivalents.

[0214] The electrode group 22, the extended electrode group 37, and the electrode group 52 may each have three or more electrodes. For example, the electrode group 22 may have three electrodes 23 including one intermediate electrode, or may have five or more electrodes 23 including three or more intermediate electrodes. In addition, the extended electrode group 37 may have three electrodes 38, or may have five or more electrodes 38. Similarly, each electrode group 52 may have three electrodes 51, or may have five or more electrodes 51. In addition, the number of positive electrodes may be two or more, and therefore, for example, there may be three or more positive electrodes, and the number of negative electrodes may be one or more, and therefore, for example, there may be three or more.

[0215] Industrial Applicability

[0216] The present disclosure can be applied to beauty devices. Specifically, for example, the present disclosure can be applied to various beauty devices for home or commercial use.

[0217] Description of Reference Numerals

[0218] 1A, beauty device; 1B, beauty device; 10, main body; 11, housing; 11a, top; 11b, bottom; 11c, front; 11d, back; 12, battery; 13, control substrate; 13a, control unit; 14a, power / mode switch; 14b, level switch; 20, head; 21, head body; 21a, head surface; 22, electrode group; 23, electrode; 23a, upper electrode; 23b, lower electrode; 23c, first intermediate electrode; 23d, 2nd intermediate electrode; 30, extended structure; 31, structure body; 32, first arm; 32a, first top end; 33, second arm; 33a, second top end; 34, third arm; 34a, third top end; 35, fourth arm; 35a, fourth top end; 36, connecting portion; 37, extended electrode group; 38, electrode; 38a, first electrode; 38b, second electrode; 38c, third electrode; 38d, fourth electrode; 40, mask body; 40a, inner surface; 41, 1st exposure hole; 42, 2nd exposure hole; 43, 3rd exposure hole; 44, cheek covering part; 44a, accommodating part; 44b, groove part; 45, forehead covering part; 46, chin covering part; 47, nose covering part; 48, belt; 48a, 1st belt-shaped body; 48b, 2nd belt-shaped body; 48c, 1st surface connecting member; 48d, 2nd surface connecting member; 50, beauty structure; 50a, 1st beauty structure; 50b, 2nd beauty structure; 51, electrode; 51a, 1st electrode; 51b, second electrode; 51c, third electrode; 51d, fourth electrode; 52, electrode group; 52a, first electrode group; 52b, second electrode group; 53, silicone pad; 53a, through hole; 54, housing; 60, controller; 61, controller body; 62, cover; 63, cable; 64, battery; 65, control substrate; 65a, control unit; 66, switch button; 67, connector; L1, first distance; L2, second distance; L3, third distance; VP, polygon.

Claims

1. A beauty device, wherein: The beauty device has: an electrode set having three or more electrodes for passing an electric current through the skin of a user; and a control unit that sets two or more positive electrodes and one or more negative electrodes for the three or more electrodes included in the electrode group, and changes the setting at predetermined intervals, The control unit makes the characteristics of the current applied to each of a first positive electrode and a second positive electrode selected from the two or more positive electrodes different from each other.

2. The cosmetic device according to claim 1, wherein: The frequency of the current applied by the three or more electrodes is in a range of greater than 1 Hz and less than 10 kHz.

3. The cosmetic device according to claim 2, wherein: The control unit makes the magnitudes of the frequencies of the currents of the first positive electrode and the second positive electrode different from each other.

4. The cosmetic device according to claim 3, wherein: The difference in the frequency of the current of the first positive electrode and the current of the second positive electrode is in a range of 0.1 Hz or more and less than 100 kHz.

5. The cosmetic device according to claim 2, wherein: The control unit changes the frequency of the current of the first positive electrode or the second positive electrode with time.

6. The cosmetic device according to claim 1 or 2, wherein: The control unit sets the first channel and the second channel in such a manner that a flow range of the current in the first channel at least partially intersects with a flow range of the current in the second channel, the first channel being composed of a combination of the first positive electrode and a first negative electrode selected from one or more of the negative electrodes, and the second channel being composed of a combination of the second positive electrode and a second negative electrode selected from one or more of the negative electrodes.

7. The cosmetic device according to claim 1 or 2, wherein: The inter-electrode distance between two electrodes selected from the three or more electrodes included in the electrode group is different depending on the selected electrodes.

8. The cosmetic device according to claim 1, wherein: The beauty device comprises: a head, wherein the three or more electrodes are arranged in parallel on the head; and a main body portion which holds the head, The three or more electrodes are at least an upper electrode disposed farthest from the bottom of the main body, a lower electrode disposed closest to the bottom of the main body, and a plurality of intermediate electrodes disposed between the upper electrode and the lower electrode.

9. The cosmetic device according to claim 8, wherein: The distance between the upper electrode and the middle electrode located closest to the upper electrode is set as the first distance, the distance between the lower electrode and the middle electrode located closest to the lower electrode is set as the second distance, and the distance between two adjacent middle electrodes is set as the third distance. At this time, the value of the third distance is different from the respective values ​​of the first distance and the second distance.

10. The cosmetic device according to claim 1, wherein: The beauty device includes a mask body to be worn on the face of the user. The electrode group is provided on the mask body corresponding to the positions of the left and right cheeks of the user.

11. The cosmetic device according to claim 10, wherein: The three or more electrodes are arranged at positions spanning at least one muscle selected from the orbicularis oculi muscle, the zygomaticus minor muscle, the zygomaticus major muscle, and the levator labii superioris muscle.

12. The cosmetic device according to claim 11, wherein: When a polygon having a vertex formed of the center of gravity of the surface of each of the three or more electrodes is assumed, the lengths of the respective sides of the polygon are different from each other.

13. A method for controlling a beauty device, the beauty device comprising an electrode group, the electrode group having three or more electrodes for passing an electric current through the skin of a user, wherein: The control method of the beauty device comprises the following steps: setting the three or more electrodes included in the electrode group to have two or more positive electrodes and one or more negative electrodes, and changing the setting at predetermined intervals; In the step, the characteristics of the current applied to a first positive electrode and a second positive electrode selected from the two or more positive electrodes are different from each other.

14. A beauty device, wherein: The beauty device has: an electrode group unit having three or more electrodes for passing electric currents with different characteristics through the skin of a user; and an electrode setting control unit that sets two or more positive electrodes and one or more negative electrodes for the three or more electrodes included in the electrode group unit and changes the setting at predetermined intervals, The electrode setting control unit selects two or more of the positive electrodes and performs control so that the characteristics of the current applied to each of the selected electrodes change with time.

15. The cosmetic device according to claim 14, wherein: The characteristic of the current is frequency.

16. The cosmetic device according to claim 14 or 15, wherein: In the electrode group unit, inter-electrode distances between two electrodes selected from the three or more electrodes are different from each other.

17. The cosmetic device according to claim 14 or 15, wherein: The electrode setting control unit, in the electrode group unit, performs stronger and shallower stimulation between two electrodes selected from the three or more electrodes whose inter-electrode distance is shorter, and performs weaker and deeper stimulation between the electrodes whose inter-electrode distance is longer.

18. The cosmetic device according to claim 14 or 15, wherein: The beauty device is a handheld beauty device or a mask-type beauty device that can be worn on the face.

19. The cosmetic device according to claim 14 or 15, wherein: The current is a low-frequency current, a medium-frequency current or an interfering low-frequency current.

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