JP7483290B1 - Cosmetic device and method for adjusting output power thereof - Google Patents

Abstract

A beauty device and a method for adjusting the output power thereof are provided.
[Solution] The cosmetic device 100 includes an electrode 10, a power generating module 20, a controller 40 for controlling the power generating module to output power to the electrode, and a power regulating module 30 connected between the electrode and the power generating module, the temperature of the power regulating module being correlated with the output power of the power generating module, and the resistance value of the power regulating module changes in response to the change in temperature of the power regulating module to regulate the output power of the electrode. The cosmetic device can automatically regulate the output power of the cosmetic device, and prevent the output power of the cosmetic device from being too high or too low, making it possible for the user to feel comfortable when using the cosmetic device and to achieve a good cosmetic effect.
[Selected Figure] Figure 1

Description

This application relates to the technical field of beauty equipment, and in particular to a beauty device and a method for adjusting its output power.

With the development of smart electronic products, beauty devices are popular among many female users in the field of smart skin care.

Currently, when the AC current emission module of a beauty device outputs AC current to the electrode sheet, the power output to the electrode sheet may be too high, making the user feel uncomfortable when using it or even causing skin burns, or the power output to the electrode sheet may be too low, resulting in undesirable cosmetic effects.

In order to solve the above technical problems, the present application provides a cosmetic device and a method for adjusting its output power that automatically adjusts the output power of the cosmetic device, preventing the output power of the cosmetic device from being too high or too low, providing a comfortable usage experience for the user and enabling a good cosmetic effect to be achieved.

In one aspect of the present application, a beauty device is provided that includes an electrode, a power generating module, a controller for controlling the power generating module to output power to the electrode, and a power adjustment module connected between the electrode and the power generating module, the temperature of the power adjustment module being correlated with the output power of the power generating module, and the resistance value of the power adjustment module changing in response to a change in temperature of the power adjustment module, thereby adjusting the output power of the electrode.

In another aspect of the present application, there is provided a method for adjusting output power applied to the above-mentioned beauty device, the method including controlling the power generation module to output power to the electrode, and adjusting the output power of the electrode by changing the resistance value of the power adjustment module in response to a change in temperature of the power adjustment module.

The cosmetic device and the method for adjusting the output power thereof according to the present application are provided with a power adjustment module whose resistance value changes with its own temperature, and when the power adjustment module receives output energy after the power generation module outputs power and its own temperature changes, it changes its own resistance value in response to the change in its own temperature, thereby adjusting the magnitude of the current passing through the electrodes. This automatically adjusts the output power of the electrodes, making it possible to prevent the output power of the cosmetic device from being too high or too low, making it possible for the user to use the device in a comfortable way and achieving a good cosmetic effect.

In order to more clearly describe the technical solution of the present application, the drawings that need to be used in the embodiments are briefly introduced below. The drawings in the following description are some embodiments of the present application,
It is obvious to those skilled in the art that, without any creative work, other drawings can be further obtained according to these drawings.

1 is a structural block diagram of a beauty device according to a first embodiment of the present application. FIG. 4 is a structural block diagram of a beauty device according to a second embodiment of the present application. FIG. 11 is a structural block diagram of a beauty device according to a third embodiment of the present application. FIG. 13 is a structural block diagram of a beauty device according to a fourth embodiment of the present application. FIG. 13 is a structural block diagram of a beauty device according to a fifth embodiment of the present application. FIG. 2 is a flow diagram of a method for adjusting output power according to an embodiment of the present application.

The technical solutions in the embodiments of the present application will be described below clearly and completely with reference to the drawings in the embodiments of the present application. However, it is clear that the described embodiments are only some of the embodiments of the present application and do not include all of the embodiments. All other embodiments that can be obtained by a person skilled in the art based on the embodiments of the present application without performing creative labor fall within the scope of protection of the present application.

In the description of this application, the terms "first," "second," "third," "fourth," etc. are used to distinguish between different objects and are not used to describe a particular order. Furthermore, the orientations or positional relationships indicated by the terms "up," "down," "inside," etc. are based on the orientations or positional relationships shown in the drawings and are merely used to facilitate and simplify the description of this application. They do not indicate or imply that such devices or elements must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be understood as limiting this application.

In the description of this application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, and may mean, for example, a fixed connection, a removable connection, an integral connection, a direct connection, an indirect connection via an intermediate medium, internal communication between two elements, a communication connection, or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

Referring to FIG. 1, FIG. 1 is a structural block diagram of a beauty device 100 according to a first embodiment of the present application. As shown in FIG. 1, the beauty device 100 includes an electrode 10, a power generation module 20, a power adjustment module 30 connected between the electrode 10 and the power generation module 20, and a controller 40 for controlling the power generation module 20 to output power to the electrode 10. The temperature of the power adjustment module 30 is correlated to the output power of the power generation module 20, and the resistance value of the power adjustment module 30 changes in response to a change in the temperature of the power adjustment module 30, that is, the power adjustment module 30 changes its own resistance value in response to a change in its own temperature to adjust the output power of the electrode 10.

The cosmetic device 100 according to the embodiment of the present application is provided with a power adjustment module 30 whose resistance value changes with its own temperature. After the power generation module 20 outputs power, when the power adjustment module 30 receives energy and its own temperature changes, it can adjust the magnitude of the current passing through the electrode 10 by changing its own resistance value in response to the change in its own temperature. This automatically adjusts the output power of the electrode 10, and prevents the output power of the cosmetic device 100 from being too high or too low, making it possible for the user to use the cosmetic device 100 in a comfortable way and achieving a good cosmetic effect.

The power generation module 20 may be equipped with an AC current emission circuit, and the AC current output by the AC current emission circuit passes through the power adjustment module 30 and the electrode 10 in sequence.

The power adjustment module 30 may be a heat-sensitive semiconductor device, the resistance of which changes with changes in its own temperature.

The electrode 10 can contact a load and output power to the load. In some embodiments, the load may be the skin.

The controller 40 may be a processing chip such as a one-chip microcomputer, a digital signal processor (DSP), or a central processing unit (CPU).

The electrode 10 may be a metal electrode, such as a copper sheet, a silver sheet, an aluminum sheet, etc.

In some embodiments, when the temperature of the power adjustment module 30 is within the operating temperature range of the power adjustment module 30, the resistance value of the power adjustment module 30 is positively correlated with the temperature of the power adjustment module 30, i.e., the resistance value of the power adjustment module 30 increases as the temperature of the power adjustment module 30 itself increases and decreases as the temperature of the power adjustment module 30 itself decreases.

For example, the operating temperature range of the power adjustment module 30 is greater than or equal to 40°C, and when the temperature of the power adjustment module 30 is within a range greater than or equal to 40°C, the resistance value of the power adjustment module 30 increases rapidly as its temperature increases and decreases rapidly as its temperature decreases.

Among these, by setting the resistance value of the power adjustment module 30 to be positively correlated with its own temperature, when the power adjustment module 30 receives energy and thereby rises in temperature, the resistance value of the power adjustment module 30 is increased, thereby reducing the current passing through the electrode 10 and thereby reducing the energy received by the electrode 10, and further enabling the output power of the electrode 10 to be reduced; and since the current passing through the power adjustment module 30 is reduced, when the temperature is reduced, the resistance value of the power adjustment module 30 is reduced, thereby increasing the current passing through the electrode 10 and thereby increasing the energy received by the electrode 10, and further enabling the output power of the electrode 10 to be increased.

The operating temperature range of the power adjustment module 30 is the temperature range in which the cosmetic device 100 is in the normal operating state. When the cosmetic device 100 is not operating or has just been started, the load acting on the cosmetic device 100 has not received energy or generated heat, and no adjustment is required for the output power of the cosmetic device 100. At this time, the temperature of the power adjustment module 30 is outside the operating temperature range, and the power adjustment module 30 does not perform power adjustment for the cosmetic device 100. After the cosmetic device 100 enters the normal operating state, the power adjustment module 30 heats up and the temperature of the power adjustment module 30 is generally within the operating temperature range, and adjustment is performed for the output power of the cosmetic device 100. Therefore, the present application is applicable to situations in which power adjustment is required in any operating state of the cosmetic device 100.

In some embodiments, when the self-heating power is greater than the self-heating power, the temperature of the power adjustment module 30 rises. When the temperature of the power adjustment module 30 rises and is within the operating temperature range of the power adjustment module 30, the resistance value of the power adjustment module 30 increases with the increase in temperature of the power adjustment module 30, so the current passing through the electrode 10 is reduced, thereby reducing the output power of the electrode 10. After the resistance value of the power adjustment module 30 increases, the current passing through the power adjustment module 30 is reduced, thereby reducing the temperature of the power adjustment module 30. Conversely, when the resistance value of the power adjustment module 30 increases, the current passing through the power adjustment module 30 is reduced, thereby reducing the temperature of the power adjustment module 30. Conversely, when the resistance value of the power adjustment module 30 decreases, the current passing through the electrode 10 is increased, thereby increasing the output power of the electrode 10.

In some embodiments, the self-heating power of the power adjustment module 30 is related to the output current of the power generation module 20, specifically, if the resistance of the power adjustment module 30 is R, the output current of the power generation module 20 is Io, and the self-heating power of the power adjustment module 30 is represented by Pg, then:

The self-heating power of the power adjustment module 30 is related to the structure and material of the power adjustment module 30 itself, and the self-heating power of different power adjustment modules 30 is different. For a determined power adjustment module 30, its self-heating power is a constant value. In the embodiment of the present application, the self-heating power of the power adjustment module 30 is represented by Pr.

After the power generation module 20 outputs power, if the output power of the power generation module 20 is large or the power generation module 20 continues to output power for a long time, and if Pg of the power adjustment module 30 is greater than Pr, the power adjustment module 30 will heat up.

For example, the operating temperature range of the power adjustment module 30 is greater than or equal to 40°C, and when the temperature of the power adjustment module 30 rises to a temperature equal to 40°C and continues to rise, the resistance value of the power adjustment module 30 increases rapidly with the rise in its own temperature, so the current passing through the power adjustment module 30 decreases, and the current passing through the electrode 10 is reduced to reduce the output power of the electrode 10; after the resistance value of the power adjustment module 30 increases, the current passing through the power adjustment module 30 decreases, so the rise in temperature of the power adjustment module 30 slows down and after a certain time, the temperature starts to drop; the resistance value of the power adjustment module 30 decreases with the drop in its own temperature, so conversely, the current passing through the power adjustment module 30 is increased to increase the current passing through the electrode 10, and the output power of the electrode 10 is reduced. After the output power of the electrode 10 is increased and the resistance value of the power adjustment module 30 is reduced, the current passing through the power adjustment module 30 increases, so that the temperature of the power adjustment module 30 drops slowly and starts to rise after a certain time. The resistance value of the power adjustment module 30 increases with the rise in its temperature, so conversely, the current passing through the power adjustment module 30 is reduced, the current passing through the electrode 10 is reduced, and the output power of the electrode 10 is further reduced. In this circular reciprocation, the power adjustment module 30 continuously changes its resistance value in response to changes in its own temperature within the operating temperature range of the power adjustment module 30, and changes the current passing through the electrode 10. This allows the power adjustment module 30 to adjust the output power of the electrode 10, i.e., the output power of the cosmetic device 100.

In some embodiments, the lower limit of the operating temperature range of the power adjustment module 30 is less than or equal to the optimal operating temperature of the cosmetic device 100, and the optimal operating temperature of the cosmetic device 100 can be set according to actual needs, for example, the optimal operating temperature may be set to 42°C, and it is clear that the optimal operating temperature may also be other values.

When the temperature of the power adjustment module 30 rises to the lower limit of its operating temperature range, the power adjustment module 30 starts adjusting the output power of the electrode 10. By setting the lower limit of the operating temperature range of the power adjustment module 30 to be smaller than or equal to the optimal operating temperature, it is possible to avoid making adjustments to the output power of the electrode 10 after the temperature of the electrode 10 rises to a temperature higher than the optimal operating temperature, and further, it is possible to maintain the temperature of the skin at approximately the optimal operating temperature when the output power of the electrode 10 acts on the skin after the adjustment.

In some embodiments, the lower limit of the operating temperature range of the power adjustment module 30 may be close to the optimal operating temperature. For example, the difference between the optimal operating temperature and the lower limit of the operating temperature range of the power adjustment module 30 may be 2°C. This allows the power adjustment module 30 to start adjusting the output power of the electrode 10 when the temperature of the electrode 10 is raised to a temperature close to the optimal operating temperature, and to avoid adjusting the output power of the electrode 10 when the temperature of the electrode 10 is low. Furthermore, when the electrode 10 acts on the skin, it is possible to avoid a large difference between the skin temperature and the optimal operating temperature, and thus the temperature of the skin on which the electrode 10 acts can be maintained as close to the optimal operating temperature as possible. In some embodiments, the optimal operating temperature is 42°C, and the lower limit of the operating temperature range of the power adjustment module 30 is 40°C.

By setting the lower limit of the operating temperature range of the power adjustment module 30 to be less than or equal to the optimal operating temperature of the cosmetic device 100, when the output power of the electrode 10 is adjusted using the power adjustment module 30, the skin area on which the cosmetic device 100 acts is maintained at approximately the optimal operating temperature, thereby achieving an optimal cosmetic effect.

Referring to FIG. 2, FIG. 2 is a structural block diagram of a beauty device 100 according to a second embodiment of the present application. In some embodiments, as shown in FIG. 2, a plurality of electrodes 10 are provided, a plurality of power adjustment modules 30 are provided, each power adjustment module 30 corresponds to one electrode 10, each power adjustment module 30 is connected between the corresponding electrode 10 and the power generation module 20, and the resistance value of each power adjustment module 30 changes in response to a change in the temperature of the power adjustment module 30, that is, each power adjustment module 30 changes its own resistance value in response to a change in its own temperature to adjust the output power of the corresponding electrode 10.

For example, as shown in FIG. 2, the plurality of electrodes 10 of the cosmetic device 100 are electrode 10a, electrode 10b, electrode 10c, and electrode 10d, respectively, and the plurality of power adjustment modules 30 of the cosmetic device 100 are power adjustment module 30a, power adjustment module 30b, power adjustment module 30c, and power adjustment module 30d, respectively, where the power adjustment module 30a corresponds to the electrode 10a, the power adjustment module 30b corresponds to the electrode 10b, the power adjustment module 30c corresponds to the electrode 10c, the power adjustment module 30d corresponds to the electrode 10d, and the power adjustment module 30a corresponds to the corresponding electrode 10a and the power generation module 20. , the power adjustment module 30b is connected between the corresponding electrode 10b and the power generation module 20, the power adjustment module 30c is connected between the corresponding electrode 10c and the power generation module 20, and the power adjustment module 30d is connected between the corresponding electrode 10d and the power generation module 20, the power adjustment module 30a adjusts the output power of the corresponding electrode 10a, the power adjustment module 30b adjusts the output power of the corresponding electrode 10b, the power adjustment module 30c adjusts the output power of the corresponding electrode 10c, and the power adjustment module 30d adjusts the output power of the corresponding electrode 10d.

When there are multiple electrodes 10, multiple power adjustment modules 30 are provided, and each is connected between one electrode 10 and the power generation module 20, so that the output power of any one of the electrodes 10 can be adjusted individually, and the output power can be adjusted by focusing on different electrodes 10.

In some embodiments, there may be one electrode 10. In other embodiments, there may be at least two electrodes 10.

Referring to FIG. 3, FIG. 3 is a structural block diagram of a cosmetic device 100 according to a third embodiment of the present application. In some embodiments, as shown in FIG. 3, each power adjustment module 30 includes a plurality of power adjustment sub-modules 31, and the operating temperature ranges of the plurality of power adjustment sub-modules 31 are different, and the cosmetic device 100 has a plurality of levels, each level corresponding to an optimal operating temperature, each power adjustment sub-module 31 corresponding to a level, and the lower limit value of the operating temperature range of each power adjustment sub-module 31 is less than or equal to the optimal operating temperature of the corresponding level. Wherein, each power adjustment module 30 corresponds to one electrode 10, and the power adjustment module 30 corresponding to one electrode 10 includes a plurality of power adjustment sub-modules 31.

The optimum operating temperatures corresponding to the multiple levels are successively higher, and the lower limit values of the operating temperature ranges of the multiple power adjustment sub-modules 31 corresponding to the multiple levels are successively higher. The optimum operating temperatures corresponding to each level can be set according to actual needs.

For example, the cosmetic device 100 has three levels, which are level 1, level 2, and level 3, and the optimum operating temperature corresponding to level 1 is 38°C, the optimum operating temperature corresponding to level 2 is 40°C, and the optimum operating temperature corresponding to level 3 is 42°C. As shown in FIG. 3, each power adjustment module 30 includes three power adjustment submodules 31, which are power adjustment submodules 31a, 31b, and 31c, respectively, where the power adjustment submodule 31a corresponds to level 1, the power adjustment submodule 31b corresponds to level 2, and the power adjustment submodule 31c corresponds to level 3, and the lower limit values of the operating temperature ranges of the power adjustment submodules 31a, 31b, and 31c are 36°C, 38°C, and 40°C, respectively.

It is clear that in other embodiments, the optimal operating temperatures corresponding to each of the three levels may be other values. In addition, the number of levels of the cosmetic device 100 may be other values, for example, two, four, etc.

When the cosmetic device 100 has multiple levels, multiple power adjustment sub-modules 31 with different operating temperature ranges can be provided, so that when the cosmetic device 100 is at different levels, the output power of the cosmetic device 100 can be adjusted using different power adjustment sub-modules 31. By adjusting the output power to the target electrode 10 according to the level, the skin temperature can be maintained at an optimal operating temperature of approximately the corresponding level. This makes it possible to adjust the output power of the cosmetic device 100 according to the level used by the user to maintain the skin at an appropriate operating temperature, and avoids the large difference between the temperature of the skin area where the cosmetic device 100 acts and the optimal operating temperature corresponding to the corresponding level, which fails to meet the cosmetic needs of the user.

In some embodiments, the controller 40 further includes a power adjustment sub-module 31 corresponding to the level when the cosmetic device 100 is at any level;
It is used to control the connection between the power generation module 20 and the electrode 10, so that the power adjustment sub-modules 31 corresponding to different levels adjust the output power of the electrode 10. Wherein, when each power adjustment module 30 has a plurality of power adjustment sub-modules 31, the above-mentioned connection of the power adjustment module 30 between the electrode 10 and the power generation module 20 may be that one power adjustment sub-module 31 in the power adjustment module 30 is connected between the corresponding electrode 10 and the power generation module 20.

The cosmetic device 100 may be provided with a memory (not shown), and a preset correspondence between the level and the power adjustment sub-module 31 may be set in advance and stored in the memory, the preset correspondence defining a correspondence between a plurality of levels and a plurality of power adjustment sub-modules 31, each power adjustment sub-module 31 corresponding to one level. The controller 40 is further used to determine the current level of the cosmetic device 100, determine a target power adjustment sub-module corresponding to the current level according to the preset correspondence, and control the connection between the target power adjustment sub-module and the power generation module 20 and the electrode 10, so that the target power adjustment sub-module can adjust the output power of the cosmetic device 100 at the current level. The memory may be a non-volatile memory.

As shown in FIG. 3, the cosmetic device 100 further includes a plurality of first switches 50, each of which is connected between one power adjustment sub-module 31 and the power generation module 20, and the controller 40 may include a plurality of first pins, each of which is used to connect to one corresponding first switch 50. The controller 40 can input a high level or a low level to the first switch 50 via the first pin to control the first switch 50 to be on, and connect the power adjustment submodule 31 connected to the first switch 50 to the power generation module 20 and the electrode 10, respectively, to connect the power generation module 20 and the electrode 10. The controller 40 can further input a low level or a high level to the first switch 50 via the first pin to control the first switch 50 to be off, and cut off the connection between the power adjustment submodule 31 connected to the first switch 50 and the power generation module 20, thereby cutting off the connection between the power generation module 20 and the electrode 10. This realizes controlling the connection between the corresponding power adjustment submodule 31, the power generation module 20, and the electrode 10 according to the current level of the cosmetic device 100, and adjusting the output power of the electrode 10 according to the current level of the cosmetic device 100.

The first switch 50 may be a digitally controlled switch, such as a MOS transistor, a BJT triode, etc.

Exemplarily, as shown in FIG. 3, each power adjustment module 30 includes a power adjustment submodule 31a, a power adjustment submodule 31b, and a power adjustment submodule 31c, and the power adjustment submodule 31c corresponds to level 3, and the plurality of first switches 50 include a first switch 50a, a first switch 50b, and a first switch 50c, in which the first switch 50a is connected between the power adjustment submodule 31a and the power generation module 20, the first switch 50b is connected between the power adjustment submodule 31b and the power generation module 20, and the first switch 50c is connected between the power adjustment submodule 31c and the power generation module 20. When the controller 40 determines that the current level of the cosmetic device 100 is level 3, it determines the power adjustment submodule 31c as the target power adjustment submodule, and controls the first switch 50c connected to the power adjustment submodule 31c to be on and the first switches 50a and 50b to be off, thereby connecting the power adjustment submodule 31c to the power generation module 20 and the electrode 10, respectively, and adjusts the output power of the electrode 10 by the power adjustment submodule 31c.

In other embodiments, each first switch 50 may be connected between the corresponding power adjustment sub-module 31 and the electrode 10, or some of the first switches 50 may be connected between the corresponding power adjustment sub-module 31 and the electrode 10, and the remaining part may be connected between the corresponding power adjustment sub-module 31 and the power generation module 20.

In some embodiments, the electrode 10 has a contact surface for contacting facial skin, i.e., the load as described above, the facial skin includes different facial regions, and each power adjustment module 30 has multiple power adjustment sub-modules 31, the multiple power adjustment sub-modules 31 having different operating temperature ranges, each corresponding to one facial region.

In some embodiments, the controller 40 is further used to determine the facial region in contact with the contact surface, determine a target power adjustment submodule according to the facial region in contact with the contact surface, and control the connection of the target power adjustment submodule with the power generation module 20 and the electrode 10. Among them, when each power adjustment module 30 includes a plurality of power adjustment submodules 31 and the controller 40 determines the target power adjustment submodule, the aforementioned connection of the power adjustment module 30 between the electrode 10 and the power generation module 20 may be the connection of the target power adjustment module between the corresponding electrode 10 and the power generation module 20.

Among them, when the operating temperature applied to different facial regions is different and the contact surface of the electrode 10 contacts different facial regions, by controlling the connection between the power adjustment sub-module 31 corresponding to the currently acting facial region, the power generation module 20, and the electrode 10, when the output power of the electrode 10 acts on a different facial region after adjustment, the temperature of the facial region can be maintained approximately at the correspondingly applied operating temperature, thereby realizing the focused adjustment of the output power according to the facial region acted upon by the cosmetic device 100.

The cosmetic device 100 may include a face identification module (not shown), which is used to obtain information of the face area currently in contact with the contact surface of the electrode 10 and transmit the information to the controller 40, and the controller 40 determines the face area currently in contact with the contact surface after receiving the information. The face identification module may be an image sensor, such as a camera, a camera head, etc. The face identification module transmits the obtained image information of the face area currently in contact with the contact surface to the controller 40, and the controller 40 determines the face area currently in contact with the contact surface after receiving the image information.

In some embodiments, determining the target power adjustment submodule according to the facial region in contact with the contact surface includes determining the power adjustment submodule 31 corresponding to the facial region in contact with the contact surface as the target power adjustment submodule according to a preset correspondence relationship between the facial region and the power adjustment submodule 31.

Wherein, the preset correspondence relationship between the face region and the power adjustment sub-module 31 defines a correspondence relationship between a plurality of face regions and a plurality of power adjustment sub-modules 31, and each face region corresponds to one power adjustment sub-module 31.

In some embodiments, a preset correspondence between the facial region and the power adjustment submodule 31 can be set in advance and stored in the memory. After determining the facial region currently in contact with the contact surface, the controller 40 determines a target power adjustment submodule corresponding to the facial region currently in contact with the contact surface according to the preset correspondence, and is used to control the connection of the target power adjustment submodule with the power generation module 20 and the electrode 10.

Referring to FIG. 4, FIG. 4 is a structural block diagram according to a fourth embodiment of the present application. In some embodiments, each power adjustment module 30 includes a plurality of power adjustment submodules 31, and as shown in FIG. 4, the plurality of power adjustment submodules 31 include a first power adjustment submodule 311, a second power adjustment submodule 312, a third power adjustment submodule 313, and a fourth power adjustment submodule 314, and the different face regions include an eye region, a mouth region, a forehead region, and a cheek region, and the first power adjustment submodule 311, the second power adjustment submodule 312, the third power adjustment submodule 313, and the fourth power adjustment submodule 314 correspond one-to-one to the eye region, the mouth region, the forehead region, and the cheek region, respectively.

In some embodiments, the controller 40 determines the target power adjustment submodule according to the facial region in contact with the contact surface, including: determining that the target power adjustment submodule is the first power adjustment submodule 311 when the facial region in contact with the contact surface is the eye region; determining that the target power adjustment submodule is the second power adjustment submodule 312 when the facial region in contact with the contact surface is the mouth region; determining that the target power adjustment submodule is the third power adjustment submodule 313 when the facial region in contact with the contact surface is the forehead region; and determining that the target power adjustment submodule is the fourth power adjustment submodule 314 when the facial region in contact with the contact surface is the cheek region, wherein the lower limit value of the operating temperature range of the first power adjustment submodule 311, the lower limit value of the operating temperature range of the second power adjustment submodule 312, the lower limit value of the operating temperature range of the third power adjustment submodule 313, and the lower limit value of the operating temperature range of the fourth power adjustment submodule 314 are different from each other.

When each power adjustment module 30 includes the first power adjustment submodule 311, the second power adjustment submodule 312, the third power adjustment submodule 313, and the fourth power adjustment submodule 314, the above-mentioned connection of the power adjustment module 30 between the electrode 10 and the power generation module 20 may mean that one of the first power adjustment submodule 311, the second power adjustment submodule 312, the third power adjustment submodule 313, and the fourth power adjustment submodule 314 is connected between the corresponding electrode 10 and the power generation module 20.

The thickness of the skin in the eye, cheek, forehead and mouth areas varies, so the operating temperature applied also varies.

Since the skin around the eye area is thin, the operating temperature applied to the eye area is low, and the lower limit of the operating temperature range of the first power adjustment sub-module 311 may be lower than the lower limit of the operating temperature range of the second power adjustment sub-module 312, the lower limit of the operating temperature range of the third power adjustment sub-module 313, and the lower limit of the operating temperature range of the fourth power adjustment sub-module 314. By adjusting the output power using the first power adjustment sub-module 311 having a low lower limit of the operating temperature, the temperature of the eye area can be lowered, and cosmetic treatment can be performed gently on the eye area.

Since the skin of the cheek area is thick, the operating temperature applied to the cheek area is high, and the lower limit of the operating temperature range of the fourth power adjustment submodule 314 may be higher than the lower limit of the operating temperature range of the first power adjustment submodule 311, the lower limit of the operating temperature range of the second power adjustment submodule 312, and the lower limit of the operating temperature range of the third power adjustment submodule 313. By adjusting the output power using the fourth power adjustment submodule 314, which has a high lower limit of the operating temperature, the temperature of the cheek area can be increased, which is advantageous for performing cosmetic treatment on the cheek area.

Among them, by dividing the facial skin into the eye area, the mouth area, the forehead area, and the cheek area, and adjusting the output power for the eye area, the mouth area, the forehead area, and the cheek area using different power adjustment submodules 31, the facial cosmetic treatment by the cosmetic device 100 can be more targeted.

As shown in FIG. 4, the cosmetic device 100 further includes a plurality of second switches 60, where one second switch 60 is connected between each first power adjustment sub-module 311 and the power generation module 20, one second switch 60 is connected between each second power adjustment sub-module 312 and the power generation module 20, one second switch 60 is connected between each third power adjustment sub-module 313 and the power generation module 20, and one second switch 60 is connected between each fourth power adjustment sub-module 314 and the power generation module 20. The controller 40 may include a plurality of second pins, where each second pin is used to connect to one corresponding second switch 60. The controller 40 can input a high level or a low level to the second switch 60 through the second pin to control the second switch 60 to be on, and connect one of the first power adjustment sub-module 311, the second power adjustment sub-module 312, the third power adjustment sub-module 313, and the fourth power adjustment sub-module 314 to the power generation module 20 and the electrode 10 to connect the power generation module 20 and the electrode 10. The controller 40 can also input a low level or a high level to the second switch 60 through the second pin to control the second switch 60 to be off, and cut off the connection between the power generation module 20 and the electrode 10. This allows the cosmetic device 100 to control the connection between the corresponding power adjustment sub-module 31, the power generation module 20, and the electrode 10 according to the facial area currently being acted on, and to make a corresponding adjustment to the electrode 10 according to the facial area currently being acted on by the cosmetic device 100.

For example, as shown in FIG. 4, a second switch 60a is connected between the first power adjustment submodule 311 and the power generation module 20, a second switch 60b is connected between the second power adjustment submodule 312 and the power generation module 20, a second switch 60c is connected between the third power adjustment submodule 313 and the power generation module 20, and a second switch 60d is connected between the fourth power adjustment submodule 314 and the power generation module 20. When the controller 40 determines that the face region in contact with the contact surface is the cheek region, it controls the second switch 60d connected to the fourth power adjustment submodule 314 to ON, and controls the second switch 60a connected to the first power adjustment submodule 311, the second switch 60b connected to the second power adjustment submodule 312, and the second switch 60c connected to the third power adjustment submodule 313 to OFF, thereby connecting the fourth power adjustment submodule 314 to the power generation module 20 and the electrode 10, and adjusting the output power of the electrode 10 by the fourth power adjustment submodule 314.

In another embodiment, each second switch 60 may be connected between the corresponding power adjustment submodule 31 and the electrode 10, or some of the second switches 60 may be connected between the corresponding power adjustment submodule 31 and the electrode 10, and the remaining part may be connected between the corresponding power adjustment submodule 31 and the power generation module 20. For example, one second switch 60 is connected between the first power adjustment submodule 311 and the electrode 10, one second switch 60 is connected between the second power adjustment submodule 312 and the electrode 10, one second switch 60 is connected between the third power adjustment submodule 313 and the electrode 10, and one second switch 60 is connected between the fourth power adjustment submodule 314 and the electrode 10.

In some other embodiments, the facial skin may be divided into different facial regions according to other schemes, for example, dividing the facial skin into an upper facial region and a lower facial region.

In some embodiments, the cosmetic device 100 further includes a contact detection module provided on the contact surface of the electrode 10, and the contact detection module is used to detect the contact area between the contact surface of the electrode 10 and the load.

Wherein, the contact detection module may be a distance sensor, such as an infrared distance sensor, a laser distance sensor, an ultrasonic distance sensor, etc. In some embodiments, the contact detection module may be an infrared distance sensor, which includes a plurality of transmitters, a receiver, and a processor, the plurality of transmitters are arranged in a concentric ring on the contact surface of the electrode 10, each transmitter is used to emit infrared rays, the receiver is used to receive the returned infrared rays, and the processor is used to determine the distance between each transmitter and the load, i.e., the distance between each position on the contact surface and the load, according to the intensity of the returned infrared rays, determine whether each position has contacted the load according to the distance between each position and the load, and determine the contact area between the contact surface and the load according to the position of the contact surface that is in contact with the load. Wherein, if the distance is smaller than a preset distance, it can be determined whether the load has been contacted, and the preset distance can be set according to actual needs.

In some embodiments, each power adjustment module 30 includes a plurality of power adjustment sub-modules 31, and the lower limit of the operating temperature range of the power adjustment sub-modules 31 is different. The controller 40 acquires the contact area detected by the contact detection module, and when the ratio value of the contact area to the total area of the contact surface changes from a value greater than a preset ratio value to a value less than or equal to the preset ratio value and continues as is for a preset time period, the controller 40 is used to control the connection of the electrode 10 and the power generation module 20 to another power adjustment sub-module 31 having a lower lower limit of the operating temperature range. That is, if the ratio value between the contact area and the total area of the contact surface changes from greater than the preset ratio value to less than or equal to the preset ratio value, and the ratio value remains less than or equal to the preset ratio value for the preset time period, the controller 40 controls the disconnection of the electrode 10 and the power generation module 20 from the current power adjustment submodule 31, and controls the connection of the electrode 10 and the power generation module 20 to another power adjustment submodule 31 with a lower lower limit value of the operating temperature range.

Wherein, when the ratio value of the contact area to the total area of the contact surface is smaller than or equal to the preset ratio value, the contact area between the electrode 10 and the load is small, and therefore the current passing area of the electrode 10 is small, and the power output by the electrode 10 acts on the part of the load that is in contact with the electrode 10 in a concentrated manner, so that the temperature of the part increases quickly, and if the load is skin, burns may occur. The embodiment of the present application switches to a connection with a power adjustment submodule 31 having a lower operating temperature range lower limit, thereby lowering the output power of the electrode 10 after adjustment, thereby making it possible to avoid burns, and making it possible to prevent a large difference in energy received by the part of the load that has a large contact area with the electrode 10 and the part that has a small contact area with the electrode 10, which is advantageous for the cosmetic device 100 to perform cosmetic treatment on the facial area in a balanced manner.

The preset ratio value can be set according to actual needs. In some embodiments, the preset ratio value may be 1/3.

Referring to FIG. 5, FIG. 5 is a structural block diagram of a cosmetic device 100 according to a fifth embodiment of the present application. In some embodiments, as shown in FIG. 5, the cosmetic device 100 includes the above-mentioned electrode 10, a power generation module 20, a power adjustment module 30, and a controller 40, and further includes a temperature sensor 70, which is provided in the power adjustment module 30 and used to detect the temperature of the power adjustment module 30. The controller 40 is further used to obtain the temperature detected by the temperature sensor 70 and determine the temperature of the electrode 10 according to the temperature detected by the temperature sensor 70, in which the temperature of the electrode 10 is positively correlated with the temperature of the power adjustment module 30.

When the temperature of the load in contact with the contact surface of the electrode 10 increases, the heat generated by the load is conducted to the electrode 10, causing the electrode 10 to increase in temperature, and when the temperature of the load decreases, the temperature of the electrode 10 decreases along with the load.

As the power generation module 20 outputs energy to the power adjustment module 30 and the electrode 10, the power adjustment module 30 generates heat and the temperature rises, and the electrode 10 outputs power to the load, which causes the load to generate heat and transfer the heat to the electrode 10, causing the electrode 10 to heat up. As the temperature of the power adjustment module 30 rises, the resistance of the power adjustment module 30 increases, causing the output power of the electrode 10 to drop, and after the resistance of the power adjustment module 30 increases for a certain period of time, the power adjustment module 30 drops in temperature due to the current passing through it decreasing, and the load drops in temperature due to the drop in the output power of the electrode 10.

The temperature of the electrode 10 and the temperature of the power adjustment module 30 are in a preset direct proportional relationship, where the temperature of the electrode 10 is To, the temperature of the power adjustment module 30 is Ta, and N is a constant.

In the embodiment of the present application, the temperature of the power adjustment module 30 is detected and the temperature of the electrode 10 is determined according to the temperature of the power adjustment module 30, making it easier to obtain the temperature of the electrode 10 and simplifying the internal structure of the cosmetic device 100.

Referring to FIG. 6, FIG. 6 is a flow diagram of an output power adjustment method according to one embodiment of the present application. The output power adjustment method is applied to the beauty device 100 according to any of the above-mentioned embodiments. As shown in FIG. 6, the output power adjustment method includes the following steps:

In S10, the power generating module 20 is controlled to output power to the electrode 10.

In S20, the resistance of the power adjustment module 30 changes in response to a change in temperature of the power adjustment module, thereby adjusting the output power of the electrode 10.

The output power adjustment method according to the embodiment of the present application provides a power adjustment module 30 whose resistance value changes with its own temperature. After the power generation module 20 outputs power, the power adjustment module 30 changes its own resistance value in response to the change in its own temperature when its own temperature changes due to receiving energy, thereby adjusting the magnitude of the current passing through the electrode 10, thereby automatically adjusting the output power of the cosmetic device 100.

In some embodiments, when the temperature of the power adjustment module 30 is within the operating temperature range of the power adjustment module 30, the resistance value of the power adjustment module 30 is positively correlated with its temperature.

In some embodiments, adjusting the output power of the electrode 10 by changing the resistance of the power adjustment module 30 in response to a change in the temperature of the power adjustment module includes: when the temperature of the power adjustment module increases when the self-heating power is greater than the self-heating power, and when the temperature of the power adjustment module increases to be within the operating temperature range of the power adjustment module, the resistance of the power adjustment module increases with the increase in temperature of the power adjustment module, thereby reducing the current passing through the electrode to reduce the output power of the electrode; and conversely, when the resistance of the power adjustment module increases, the current passing through the power adjustment module decreases, thereby reducing the temperature of the power adjustment module, and the resistance of the power adjustment module decreases with the decrease in temperature of the power adjustment module, thereby increasing the current passing through the electrode to increase the output power of the electrode.

In some embodiments, the cosmetic device 100 has a plurality of levels, each level corresponding to one optimal operating temperature, and each power adjustment module 30 includes a plurality of power adjustment sub-modules 31, the plurality of power adjustment sub-modules 31 have different operating temperature ranges, each corresponding to one level, and the lower limit of the operating temperature range of each power adjustment sub-module 31 is less than or equal to the optimal operating temperature of the corresponding level. The output power adjustment method further includes controlling the connection between the power adjustment sub-module 31 corresponding to the level and the power generation module 20 and the electrode 10 when the cosmetic device 100 is at any level.

In some embodiments, the electrode 10 comprises a contact surface for contacting facial skin, the facial skin including different facial regions, and each power adjustment module 30 comprises a plurality of power adjustment sub-modules 31, the plurality of power adjustment sub-modules 31 having different operating temperature ranges. The method of adjusting the output power further comprises determining a facial region in contact with the contact surface, determining a target power adjustment sub-module according to the facial region in contact with the contact surface, and controlling a connection between the target power adjustment sub-module and the power generation module and the electrode.

In some embodiments, the different facial regions include an eye region, a mouth region, a forehead region and a cheek region, and the multiple power adjustment sub-modules 31 include a first power adjustment sub-module 311, a second power adjustment sub-module 312, a third power adjustment sub-module 313 and a fourth power adjustment sub-module 314, and the first power adjustment sub-module 311, the second power adjustment sub-module 312, the third power adjustment sub-module 313 and the fourth power adjustment sub-module 314 correspond one-to-one to the eye region, the mouth region, the forehead region and the cheek region, respectively. The above-mentioned determining the target power adjustment submodule according to the facial area in contact with the contact surface includes: determining that the target power adjustment submodule is the first power adjustment submodule when the facial area in contact with the contact surface is the eye area; determining that the target power adjustment submodule is the second power adjustment submodule when the facial area in contact with the contact surface is the mouth area; determining that the target power adjustment submodule is the third power adjustment submodule when the facial area in contact with the contact surface is the forehead area; and determining that the target power adjustment submodule is the fourth power adjustment submodule when the facial area in contact with the contact surface is the cheek area, wherein the lower limit value of the operating temperature range of the first power adjustment submodule, the lower limit value of the operating temperature range of the second power adjustment submodule, the lower limit value of the operating temperature range of the third power adjustment submodule, and the lower limit value of the operating temperature range of the fourth power adjustment submodule are different from each other.

The output power adjustment method corresponds to the cosmetic device 100 described above, and for a more detailed explanation, please refer to the contents of each embodiment of the cosmetic device 100 described above. The output power adjustment method and the contents of the cosmetic device 100 described above can also be mutually referenced.

An embodiment of the present application further provides a computer-readable storage medium having stored thereon a computer program that is called and executed by a processor to realize the output power adjustment method according to any of the previously described embodiments.

A person skilled in the art can understand that all or some of the steps in each method of the above embodiments can be completed by a program instructing associated hardware, and the program can be stored in a computer-readable memory, which may include a flash disk, a read-only memory, a random access memory, a magnetic disk, an optical disk, etc.

For ease of explanation, the embodiments of the above-mentioned methods have been described as a combination of a series of operations. However, those skilled in the art should know that the present application is not limited to the order of operations described, because some steps may be performed in other orders or simultaneously in accordance with the present application. Furthermore, those skilled in the art should know that the embodiments described in the specification are preferred embodiments, and that such operations and modules are not necessarily required for the present application.

In the above examples, the explanation of each example has its own emphasis, and for parts that are not detailed in one example, you may refer to the relevant explanations of other examples.

The above is an embodiment of the present application, and it should be noted that a person skilled in the art may make some further improvements and embellishments without departing from the principles of the present application, and these improvements and embellishments are also considered to be within the scope of protection of the present application.

100: beauty device, 10, 10a to 10d: electrodes, 20: power generation module, 30, 30a to 30d: power adjustment module, 40: controller, 31, 31a to 31c: power adjustment submodule, 50, 50a to 50c: first switch, 311: first power adjustment submodule, 312: second power adjustment submodule, 313: third power adjustment submodule, 314: fourth power adjustment submodule, 60, 60a to 60d: second switch, 70: temperature sensor.

Claims (7)

An electrode;
a power generation module;
a controller for controlling the power generation module to output power to the electrodes;
a power adjustment module connected between the electrode and the power generation module, the power adjustment module having a temperature correlated with an output power of the power generation module and a resistance value that changes in response to a change in temperature to adjust the output power of the electrode , the power adjustment module having a resistance value that is positively correlated with the temperature of the power adjustment module when the temperature of the power adjustment module is within an operating temperature range of the power adjustment module;
a temperature sensor provided in the power adjustment module for detecting a temperature of the power adjustment module ;
the controller is further adapted to obtain a temperature detected by the temperature sensor and determine a temperature of the electrode in response to the temperature detected by the temperature sensor, the temperature of the electrode being positively correlated with a temperature of the power adjustment module;
A beauty device characterized by the above. When the self-heating power is greater than the self-heating power, the temperature of the power adjustment module rises. When the temperature of the power adjustment module rises and falls within the operating temperature range of the power adjustment module, the resistance value of the power adjustment module increases with the increase in temperature of the power adjustment module, so the current passing through the electrodes is reduced to reduce the output power of the electrodes. After the resistance value of the power adjustment module increases, the current passing through the power adjustment module is reduced, so the temperature of the power adjustment module decreases. The resistance value of the power adjustment module decreases with the decrease in temperature of the power adjustment module, so conversely, the current passing through the electrodes is increased to increase the output power of the electrodes.
The cosmetic device according to claim 1 . The lower limit of the operating temperature range of the power adjustment module is less than or equal to the set operating temperature of the cosmetic device;
The cosmetic device according to claim 1 . The electrodes are provided in a plurality, and the power adjustment modules are provided in a plurality, each power adjustment module corresponding to one electrode and connected between the corresponding electrode and the power generation module, and a resistance value of the power adjustment module changes in response to a change in temperature to adjust the output power of the corresponding electrode.
The cosmetic device according to claim 1 . a plurality of levels each corresponding to a set operating temperature;
Each power adjustment module includes a plurality of power adjustment sub-modules, and the operating temperature ranges of the plurality of power adjustment sub-modules are different, and each power adjustment sub-module corresponds to one level , and the lower limit value of the operating temperature range of each power adjustment sub-module is smaller than or equal to the set operating temperature of the level corresponding to the power adjustment sub-module ;
The controller is further used to connect the power adjustment sub-module corresponding to a level between the power generation module and the electrode when the cosmetic device is at any level.
5. The cosmetic device according to claim 4 . the electrodes have contact surfaces for contacting facial skin including different facial regions;
Each power regulation module includes a plurality of power regulation sub-modules having different operating temperature ranges;
The controller is further used to determine a face region in contact with the contact surface, determine a target power adjustment sub-module from the plurality of power adjustment sub-modules according to the face region in contact with the contact surface, and connect the target power adjustment sub-module between the power generation module and the electrode.
5. The cosmetic device according to claim 4 . The different facial regions include an eye region, a mouth region, a forehead region, and a cheek region;
the plurality of power adjustment sub-modules include a first power adjustment sub-module, a second power adjustment sub-module, a third power adjustment sub-module, and a fourth power adjustment sub-module;
Determining a target power adjustment submodule according to a facial region contacted by the contact surface by the controller includes:
determining that the target power adjustment submodule is the first power adjustment submodule when the facial area in contact with the contact surface is the eye area; determining that the target power adjustment submodule is the second power adjustment submodule when the facial area in contact with the contact surface is the mouth area; determining that the target power adjustment submodule is the third power adjustment submodule when the facial area in contact with the contact surface is the forehead area; and determining that the target power adjustment submodule is the fourth power adjustment submodule when the facial area in contact with the contact surface is the cheek area,
a lower limit value of the operating temperature range of the first power adjustment sub-module, a lower limit value of the operating temperature range of the second power adjustment sub-module, a lower limit value of the operating temperature range of the third power adjustment sub-module, and a lower limit value of the operating temperature range of the fourth power adjustment sub-module are different from each other;
The cosmetic device according to claim 6 .

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