Skin care device

Abstract

This application provides a skin care device, comprising: a housing, the outer surface of which includes a first surface having a skin care area; a skin care device disposed within the housing for providing skin care functions through the skin care area; a rolling shaft mounted on the housing, with a portion of the rolling shaft protruding from the first surface to allow the rolling shaft to roll on the skin; a direction detection device including a direction detection circuit and a trigger module; the trigger module being disposed on the rolling shaft to allow it to rotate as the rolling shaft rolls; the trigger module triggering the direction detection circuit to output a direction detection signal based on the rolling direction of the rolling shaft; and a control device electrically connected to the direction detection circuit and the skin care device, for determining a target skin care function based on the direction detection signal output by the direction detection circuit and driving the skin care device based on the target skin care function. This enriches the functionality of the skin care device and meets the growing user needs.

Description

Technical Field

[0001] This application relates to the field of skin care technology, and more particularly to a skin care device. Background Technology

[0002] Skin care devices refer to instruments or tools such as skin cleansing devices, iontophoresis / extraction devices, and phototherapy devices that are used to improve and maintain skin health. These devices can utilize different technological principles to achieve functions such as skin cleansing and skin stimulation. However, the inventors have discovered that existing skin care devices suffer from limited functionality and cannot meet the growing needs of users. Utility Model Content

[0003] The purpose of this application is to at least address one of the aforementioned technical deficiencies, particularly the technical deficiency in the prior art where the functions are limited and unable to meet the growing needs of users.

[0004] This application provides a skin care device, including:

[0005] A housing, the outer surface of which includes a first surface having a skin-care area;

[0006] A skin care device, disposed within the housing, is used to provide skin care functions through the skin care area;

[0007] A roller is mounted on the housing, and a portion of the roller protrudes from the first surface to allow the roller to roll on the skin;

[0008] A direction detection device includes a direction detection circuit and a trigger module; the trigger module is disposed on the rolling shaft so that the trigger module can rotate with the rolling shaft; the trigger module is used to trigger the direction detection circuit to output a direction detection signal according to the rolling direction of the rolling shaft.

[0009] A control device is electrically connected to the direction detection circuit and the skin care device, respectively, for determining the target skin care function based on the direction detection signal output by the direction detection circuit, and driving the skin care device based on the target skin care function.

[0010] In some embodiments, the trigger module includes at least one colored area located on the outer surface of the scroll shaft, and the colored area includes at least three color areas arranged sequentially along the circumference of the scroll shaft, the at least three color areas corresponding to different colors;

[0011] The orientation detection circuit includes a color detection sensor disposed within the housing; the color detection sensor is electrically connected to the control device and is used to detect the regional color of the area to be detected on the outer surface of the rolling shaft and output a color detection signal.

[0012] In some embodiments, the color detection sensor is an infrared transceiver sensor.

[0013] In some embodiments, the trigger module includes at least three first capacitor plates, which are disposed circumferentially on the outer surface of the rolling shaft; each first capacitor plate is used to form a capacitance with ground.

[0014] The direction detection circuit is electrically connected to each of the first capacitor plates and the control device, and is used to output the direction detection signal according to the capacitance value corresponding to each of the first capacitor plates.

[0015] In some embodiments, the direction detection circuit includes a frequency detection chip and at least three resistors; the at least three resistors are electrically connected to the at least three first capacitor plates in a one-to-one correspondence to form at least three RC oscillation circuits.

[0016] The frequency detection chip is electrically connected to each of the RC oscillation circuits and the control device, and is used to detect the oscillation frequency of each of the RC oscillation circuits and output the direction detection signal according to each of the oscillation frequencies.

[0017] In some embodiments, the frequency detection chip includes at least three first input terminals and at least three first output terminals, and the control device includes at least three second input terminals; the at least three first input terminals are electrically connected to the at least three RC oscillation circuits in a one-to-one correspondence, and the at least three first output terminals are electrically connected to the at least three second input terminals in a one-to-one correspondence.

[0018] The frequency detection chip is used to determine the touch state signal corresponding to each of the first capacitor plates according to each of the oscillation frequencies, and output the touch state signal corresponding to each of the first capacitor plates through the at least three first output terminals.

[0019] In some embodiments, the direction detection circuit further includes a filtering module, which is electrically connected to the power supply terminal of the frequency detection chip.

[0020] In some embodiments, the filtering module includes a first capacitor and a second capacitor, wherein a first terminal of the first capacitor is connected to a first terminal of the second capacitor and the power supply terminal, and a second terminal of both the first capacitor and the second capacitor is used for grounding.

[0021] In some embodiments, the triggering module is a ring-shaped magnetic component, and the outer surface of the ring-shaped magnetic component is distributed with multiple pairs of magnetic poles along the circumferential direction. The ring-shaped magnetic component is sleeved on the rolling shaft.

[0022] The direction detection circuit includes at least two Hall sensors, each of which is electrically connected to the control device.

[0023] In some embodiments, the plurality of magnetic pole pairs are uniformly distributed on the outer surface of the annular magnetic element.

[0024] In some embodiments, the skincare device includes at least one of a light source component, a cooling component, a heating component, an import / export component, an atomizing component, a radio frequency component, a microcurrent firming component, an ultrasonic component, and a microwave component.

[0025] In some embodiments of the skin care device provided in this application, a trigger module is disposed on a rolling shaft and rotates with the rolling shaft. This allows the direction detection circuit to determine the rolling direction of the rolling shaft based on the rotation of the trigger module and output a direction detection signal accordingly. A control device is electrically connected to both the direction detection circuit and the skin care device. It determines the target skin care function corresponding to the device's movement direction based on the direction detection signal and drives the skin care device based on the target skin care function, enabling the skin care device to provide users with skin care functions that meet their needs. This application can accurately detect the movement direction of the skin care device through the direction detection circuit and the trigger module, thereby providing different skin care functions to users according to the movement direction, enriching the functionality of the skin care device, and meeting the ever-growing needs of users. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the circuit structure of the skin care device in some embodiments;

[0028] Figure 2 This is one of the schematic diagrams illustrating the setup of the trigger module in some embodiments;

[0029] Figure 3 This is a second schematic diagram illustrating the setup of the trigger module in some embodiments;

[0030] Figure 4 This is a schematic diagram of the circuit structure of the direction detection circuit in some embodiments;

[0031] Figure 5 This is the third schematic diagram showing the setup of the trigger module in some embodiments;

[0032] Explanation of reference numerals in the attached figures:

[0033] 110—Skin care device; 120—Control device; 130—Direction detection circuit; 131—Color detection sensor; 132—Hall sensor; 140—Rolling shaft; 151—First capacitor plate; 152—RC oscillation circuit; 153—Ring magnetic component. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0036] As stated in the background section, existing skin care devices suffer from a lack of functionality and cannot meet the growing user demands. The limited functionality described in this application can be at least one of the following two situations:

[0037] (1) When the device is on, existing skin care equipment will continue to run until the user manually triggers it to stop. Taking a laser hair removal device as an example, when on, the device will continuously emit light without selectively driving or de-driving its internal light source based on the user's actual usage. In this case, the laser hair removal device is prone to repeatedly shining light on the same area, which can easily cause burns to the user's skin and poses a high safety hazard.

[0038] (2) Existing skin care devices can only provide one skin care method, and cannot provide multiple skin care methods through one device. For example, a light hair removal device can only provide users with hair removal as a skin care method, and a cold compress device can only provide skin cold compress as a skin care method.

[0039] To address the aforementioned issues, this application provides a skin care device incorporating a direction detection device, enabling the skin care device to provide matching skin care functions based on its direction of movement, thereby achieving diversified functions.

[0040] In some embodiments, this application provides a skin care device, including a housing, a skin care device 110, a rolling shaft 140, a direction detection device, and a control device 120. The outer surface of the housing includes a first surface, and the first surface has a skin care area. The skin care area refers to the area in the skin care device used to provide skin care functions to the user. Its setting method, setting position, and shape can be set according to actual conditions, and this application does not impose specific limitations in this regard. For example, when the skin care device can provide optical-based skin care functions such as phototherapy hair removal or phototherapy skin rejuvenation, the skin care area may include a light outlet. As another example, when the skin care device can provide temperature-regulated skin care functions such as cold compress or hot compress, the skin care area may include a temperature conduction component.

[0041] The skin care device 110 can be disposed within the housing and is used to provide skin care functions to the user through the skin care area on the first surface. It is understood that the circuit structure, mechanical connection structure, etc. of the skin care device 110 can be determined based on actual factors such as the skin care functions supported by the skin care device, and this application does not impose specific limitations in this regard.

[0042] In some examples, the skincare device 110 may include at least one of the following skincare components: a light source component, a cooling component, a heating component, an import / export component, a misting component, a radio frequency component, a microcurrent firming component, an ultrasonic component, and a microwave component. The light source component can be used to generate light of specific wavelengths, such as laser, IPL (Intense Pulsed Light), DPL (DyePulse Light), or NIR (Near Infrared Spectrum Instrument), to provide skincare functions such as phototherapy hair removal and photorejuvenation. The cooling component can be used for localized cooling to provide skincare functions such as skin calming and soothing. The heating component can be used for localized heating to provide skincare functions such as opening skin pores and promoting skin metabolism. The import / export component can promote the absorption of skincare ingredients / promote the removal of impurities from the skin through physical or chemical methods such as osmotic pressure technology, carrier technology, and microcurrent technology. The radio frequency component refers to a component that emits radio frequency electromagnetic waves, which act on the user's skin to promote collagen regeneration. Microcurrent firming components work by delivering microcurrents to the skin's muscle layer to stimulate muscles and achieve a firming effect. Ultrasonic components deliver ultrasound waves to the skin to promote the absorption of skincare ingredients in the superficial layers or stimulate the synthesis of elastic fibers and collagen in the deeper layers. Microwave components generate microwave electric fields that produce thermal effects (energy absorbed by skin tissue and converted into heat) or non-thermal effects (such as altering cell membrane permeability at low energy levels). By controlling the frequency, energy density, and duration of action, various skincare effects can be achieved, including anti-aging firming, acne treatment, hair removal, and scar repair.

[0043] It is understandable that the specific arrangement of the skincare area can be determined based on the components included in the skincare device. For example, when the skincare device includes a light source component, the skincare area may include a light outlet, from which the light generated by the light source component can be emitted to act on the user's skin.

[0044] A roller 140 is mounted on the housing, and a portion of the roller 140 protrudes from the first surface of the housing, allowing the roller 140 to roll on the skin, thereby moving the skin care device on the skin. It can be understood that when different skin areas require skin care, the user can move the skin care device using the roller 140, aligning the skin care area of ​​the first surface with different skin areas, and then driving the skin care device 110 to provide the corresponding skin care function through the skin care area of ​​the first surface.

[0045] A direction detection device is a device used to detect the rolling direction of the rolling shaft 140 and generate a direction detection signal. Specifically, the direction detection device may include a direction detection circuit 130 and a trigger module. The trigger module is located on the rolling shaft 140 and can rotate with the rolling shaft 140, and is used to trigger the direction detection circuit 130 to output a direction detection signal according to the rolling direction of the rolling shaft 140. For example, when the rolling shaft 140 rolls in a first direction, the trigger module can rotate in the first direction and trigger the direction detection circuit 130 to output a forward detection signal. As another example, when the rolling shaft 140 rolls in a second direction, the trigger module can rotate in the second direction and trigger the direction detection circuit 130 to output a backward detection signal.

[0046] like Figure 1 As shown, the control device 120 refers to a circuit device with signal processing and driving functions, electrically connected to the direction detection circuit 130 and the skin care device 110, respectively. The control device 120 determines the target skin care function based on the direction detection signal output by the direction detection circuit 130, and drives the skin care device based on the target skin care function. The target skin care function refers to the care function corresponding to the movement direction of the skin care device. The target care function can be used to reflect the driving state of the skin care device and / or the care components that need to be driven.

[0047] For example, when the skin care device is detected moving in the forward direction, the target skin care function could be a laser hair removal function, in which case the control device can drive the light source component; when the skin care device is detected moving in the backward direction, the target skin care function could be a skin soothing function, in which case the control device can drive the cooling component. Similarly, when the skin care device is detected moving in the forward direction, the target skin care function could be a heating function, and the control device can drive the heating component; when the skin care device is detected moving in the backward direction, the target skin care function could be a spray function, and the control device can drive the atomizing component. In this way, multiple skin care methods can be provided through a single device, depending on the direction of movement of the skin care device.

[0048] For example, taking a phototherapy hair removal device as an example, the skincare device may include a light source component. When the device is detected moving in the forward direction, the target care function is activated to apply light. In this case, the control device can drive the light source component to apply light. When the device is detected moving in the backward direction, the target care function can be deactivated to stop applying light. In this case, the control device can stop driving the light source component to apply light. This allows for precise control, avoids repeated application of light to the same skin area, and thus improves the safety of using the skincare device.

[0049] It should be noted that the specific circuit structure of the control device 120 can be determined according to the actual situation. In some examples, the control device 120 may be a circuit module including an MCU (Microcontroller Unit) and its peripheral drive circuits.

[0050] As can be seen from the above embodiments, this application can accurately detect the movement direction of the skin care device through the direction detection circuit and the trigger module, thereby accurately providing the skin care functions required by the user.

[0051] In some embodiments, such as Figure 2 As shown, the trigger module includes at least one colored area located on the outer surface of the scroll shaft 140, and the colored area includes at least three color areas arranged sequentially along the circumference of the scroll shaft 140, the aforementioned at least three color areas corresponding to different colors. It can be understood that when the outer surface of the scroll shaft 140 includes multiple colored areas, each colored area may include at least three color areas, and each color area may be arranged sequentially along the circumference of the scroll shaft 140.

[0052] The orientation detection circuit 130 includes a color detection sensor 131 disposed within the housing. The color detection sensor 131 is electrically connected to the control device 120 and is used to detect the area color of the region to be detected on the outer surface of the rolling shaft 140 and output a color detection signal.

[0053] For example, the aforementioned three color regions can correspond to red, green, and blue, respectively, and the red, green, and blue regions can be arranged sequentially along the circumference of the scrolling axis 140. When the scrolling axis 140 rolls in the first direction, the color detection sensor 131 can detect red—green—blue—red sequentially. When the scrolling axis 140 rolls in the second direction, the color detection sensor 131 can detect red—blue—green—red sequentially. Therefore, the color detection signal output by the color sensor can reflect the rolling direction of the scrolling axis 140, allowing the control device 120 to determine the rolling direction based on the color detection signal and thus determine the target skincare function.

[0054] It is understood that the color detection sensor 131 can be implemented using any sensor capable of color detection, and this application does not impose any specific limitations on it. In some examples, the color detection sensor 131 can be an infrared transceiver integrated sensor, thereby utilizing the difference in infrared signal reflectance to achieve color detection and reduce costs.

[0055] In some embodiments, to measure the rolling distance of the scrolling shaft 140, the outer surface of the scrolling shaft 140 may include at least three color regions, and color regions of the same color have the same region size. For example, along the circumference of the scrolling shaft 140, the outer surface of the scrolling shaft 140 may be arranged sequentially as red region—green region—blue region—red region—green region—blue region, where each red region has the same region size, each green region has the same region size, each blue region has the same region size, and regions of different colors may have the same or different region sizes.

[0056] An infrared transceiver sensor can be provided in the rolling direction of the rolling shaft 140. The infrared transceiver sensor can emit infrared signals to the detection area on the outer surface of the rolling shaft 140 and receive infrared signals reflected from the outer surface of the rolling shaft 140. Since different colors have different reflectivities of infrared light, the intensity of the reflected signal received by the infrared transceiver sensor changes with the color area it passes as the rolling shaft 140 rolls. The control device 120 can receive the intensity of the reflected signal output by the infrared transceiver sensor, determine the color detected by the infrared transceiver sensor based on the pre-stored correspondence between color and signal intensity, and calculate the rolling distance of the rolling shaft 140 based on the calibration spacing / calibration size of the color area and the detected color, thereby obtaining the actual moving distance of the skin care device.

[0057] The control device 120 can drive the skin care device 110 according to the rolling direction and actual movement distance of the rolling shaft 140. Taking the photo-hair removal function as an example, when the rolling direction of the rolling shaft 140 matches the predetermined movement direction, and the actual movement distance of the rolling shaft 140 reaches the dimension of the light outlet along the rolling direction, the skin care device 110 is driven. Otherwise, the skin care device 110 is not driven. In this way, the rolling distance of the rolling shaft 140 can be accurately detected, and precise control can be achieved accordingly, improving safety and user experience.

[0058] Furthermore, the control device 120 can continuously filter the signal to eliminate abnormal signals caused by slight vibration of the rolling shaft 140 or interference from external light, thus ensuring the accuracy and stability of the detection results.

[0059] In some embodiments, such as Figure 3 As shown, the trigger module includes at least three first capacitor plates 151, which are disposed on the outer surface of the rolling shaft 140 along the circumference of the rolling shaft 140. That is, at least three first capacitor plates 151 are arranged sequentially along the circumference of the rolling shaft 140.

[0060] Each first capacitor plate 151 can be used to form a fixed capacitor with ground. It is understood that the first capacitor plate 151 can be made of any material, and its shape can be specifically set according to the actual situation. This application does not impose specific restrictions on this, as long as the first capacitor plate 151 can form a fixed capacitor with ground.

[0061] The direction detection circuit 130 is electrically connected to each first capacitor plate 151 and the control device 120, and is used to output a direction detection signal according to the capacitance value corresponding to each first capacitor plate 151. Specifically, since the human body is a conductor, when the first capacitor plate 151 is not in contact with the user's skin, the capacitance formed by the first capacitor plate 151 and the ground can be the first capacitance value. When the first capacitor plate 151 is in contact with the user's skin, the capacitance formed by the human body and the ground will be connected in parallel to the capacitance formed by the first capacitor plate 151 and the ground, resulting in an increase in the total parallel capacitance value, causing the capacitance value of the first capacitor plate 151 to increase to the second capacitance value.

[0062] Therefore, the direction detection circuit 130 can determine the first capacitor plate 151 in contact with the user's skin based on the capacitance value of each first capacitor plate 151, and determine the rolling direction of the scrolling shaft 140 accordingly. For example, when capacitor plates A, B, and C are sequentially arranged circumferentially on the outer surface of the scrolling shaft 140, the direction detection circuit 130 can determine the capacitor plate in contact with the skin based on the capacitance values ​​detected from the three capacitor plates. If the capacitor plates contact the skin sequentially in the order of A-B-C, it can be determined that the scrolling shaft 140 rolls in a first direction. If the capacitor plates contact the skin sequentially in the order of A-C-B, it can be determined that the scrolling shaft 140 rolls in a second direction.

[0063] In this embodiment, the trigger module is implemented using the first capacitor plate 151, which can detect both the rolling direction of the scrolling shaft 140 and the adhesion between the scrolling shaft 140 and the human skin, thereby detecting whether the skin care area of ​​the first surface is in contact with the user's skin. Thus, the first capacitor plate 151 can be reused to complete multiple types of detections without the need for an additional adhesion detection sensor, saving costs.

[0064] In some embodiments, such as Figure 4As shown, the direction detection circuit 130 may include a frequency detection chip U1 and at least three resistors. The at least three resistors are electrically connected one-to-one with at least three first capacitor plates 151 to form at least three RC oscillation circuits 152. It can be understood that, with a fixed resistance value, the oscillation frequency of the RC oscillation circuit 152 is determined by the capacitance value in the circuit. If the first capacitor plate 151 in the RC oscillation circuit 152 is not in contact with the human body, the capacitance value in the RC oscillation circuit 152 is small, and the oscillation frequency is high. Conversely, if the first capacitor plate 151 in the RC oscillation circuit 152 is in contact with the human body, the capacitance formed by the human body and the ground will be connected in parallel to the capacitance formed by the first capacitor plate 151 and the ground, increasing the capacitance value of the RC oscillation circuit 152 and thus reducing the oscillation frequency.

[0065] Based on the above principle, the rolling direction of the rolling shaft 140 can be determined by detecting the oscillation frequency of each RC oscillation circuit 152, thereby outputting a direction detection signal. Accordingly, the frequency detection chip U1 can be electrically connected to each RC oscillation circuit 152 and the control device 120 respectively, for detecting the oscillation frequency of each RC oscillation circuit 152, and outputting a direction detection signal to the control device 120 according to each oscillation frequency.

[0066] For example, after detecting the oscillation frequency of each RC oscillation circuit 152, the frequency detection chip U1 can calculate the frequency change corresponding to each RC oscillation circuit 152 (for example, by subtraction), and determine the touch state based on the relationship between the frequency change and the preset frequency threshold.

[0067] In this embodiment, the direction circuit is implemented by frequency detection chip U1 and resistor, which has the advantages of low cost and space saving.

[0068] It should be noted that, Figure 4 The following diagram illustrates the circuit structure of an RC oscillator circuit, the connection between the frequency detection chip and the RC oscillator circuit, and the connection between the frequency detection chip and the control device, using two RC oscillator circuits as an example. When the direction detection circuit includes at least three RC oscillator circuits, the circuit structure of a single RC oscillator circuit and the connection between the RC oscillator circuit and the frequency detection chip can be referenced accordingly. Figure 4 .

[0069] In some embodiments, the frequency detection chip U1 may include at least three first input terminals and at least three first output terminals, and the control device 120 may include at least three second input terminals. Specifically, each first input terminal of the frequency detection chip U1 is electrically connected to each first capacitor plate 151 in a one-to-one correspondence, so that the frequency detection chip U1 can acquire the oscillation frequency of different RC oscillation circuits 152 through different first input terminals.

[0070] Each first output terminal of the frequency detection chip U1 is electrically connected to each second input terminal of the control device 120 in a one-to-one correspondence, so that the control device 120 can obtain the signals corresponding to different RC oscillation circuits 152 through different second input terminals.

[0071] In this embodiment, the frequency detection chip U1 is used to determine the touch state signal corresponding to each first capacitor plate 151 according to each oscillation frequency, and output the touch state signal corresponding to each first capacitor plate 151 through at least three first output terminals.

[0072] In some embodiments, such as Figure 4 As shown, the direction detection circuit 130 may also include a filtering module. The filtering module can be electrically connected to the power supply terminal VDD of the frequency detection chip U1 to filter the power supply of the frequency detection chip U1, thereby improving the power supply stability and thus improving the reliability of the frequency detection chip U1.

[0073] It is understood that the filtering module can be implemented in any way, and this application does not impose any specific restrictions. In some examples, the filtering module may include a first capacitor C1 and a second capacitor C2, with the first terminal of the first capacitor C1 connected to both the first terminal of the second capacitor C2 and the power supply terminal VDD, and the second terminals of both the first capacitor C1 and the second capacitor C2 being grounded. This example implements the filtering module using two capacitors connected in parallel, thereby reducing costs while still providing filtering.

[0074] In some embodiments, this application can utilize the first capacitor plate 151 on the rolling shaft 140 to accurately detect the movement distance of the skin care device and simultaneously determine whether the skin care area on the first surface is in contact with the user's skin. When the movement distance of the skin care device reaches a preset distance threshold and the skin care area is in contact with the user's skin, the skin care device 110 is activated to provide the target skin care function. This prevents safety issues such as light exposure due to non-contact skin, thereby improving the safety and effectiveness of the skin care device and optimizing the user experience.

[0075] Specifically, each of the first capacitor plates 151 is equidistantly arranged along the circumference of the rolling shaft 140 on its outer surface. The rolling shaft 140 can be positioned on the side of the skincare area. When the skincare area is in contact with the user's skin, the rolling shaft 140 simultaneously contacts the user's skin. As the skincare device rolls on the user's skin, the rolling shaft 140 rolls, and each of the first capacitor plates 151 sequentially contacts the user's skin, causing the oscillation frequency of each RC oscillation circuit 152 to change sequentially. The frequency detection chip U1 can output touch signals to the control device 120 based on the frequency changes of each RC oscillation circuit 152. The control device 120 can receive the touch signals, count and analyze them, and calculate the rolling distance of the rolling shaft 140 based on the interval between each of the first capacitor plates 151, thereby obtaining the actual moving distance of the skincare device.

[0076] The control device 120 determines whether to activate the skincare device 110 based on the actual movement distance and the contact state between the scrolling shaft 140 and the user's skin. When the actual movement distance reaches a preset distance threshold and the scrolling shaft 140 is detected to be in contact with the skin, the skincare device 110 is activated to provide the target skincare function. If the actual movement distance does not reach the preset distance threshold, or the scrolling shaft 140 is not in contact with the skin, the skincare device 110 is not activated.

[0077] Furthermore, the control device 120 can also filter the received signal to eliminate abnormal signals caused by slight jitter or accidental touch, ensuring the accuracy and stability of the detection results.

[0078] In some embodiments, rotation direction detection can be achieved through a combination of a magnetic component and a Hall sensor. For example... Figure 5 As shown, the trigger module can be, for example, a ring-shaped magnetic element 153. The ring-shaped magnetic element 153 is sleeved on the rolling shaft 140 so that the ring-shaped magnetic element 153 rotates synchronously with the rolling shaft 140. Furthermore, multiple pairs of magnetic poles are distributed circumferentially on the outer surface of the ring-shaped magnetic element 153.

[0079] The direction detection circuit 130 includes at least two Hall sensors 132, each of which is electrically connected to the control device 120. Taking two Hall sensors 132 as an example, the two Hall sensors 132 can be arranged in parallel in the vertical direction of the magnetic ring. Furthermore, the distance between the two Hall sensors 132 is half the distance between a single magnetic pole.

[0080] When the rolling shaft 140 rotates in the first direction, the annular magnetic element 153 follows the rolling shaft 140 in the first direction. When the rolling shaft 140 rotates in the second direction, the annular magnetic element 153 follows the rolling shaft 140 in the second direction. When the annular magnetic element 153 rotates, each Hall sensor 132 detects a magnetic field signal, and the magnetic field signals detected by the two Hall sensors 132 have a certain phase difference. Taking two Hall sensors 132 as an example, when the two Hall sensors 132 can be arranged parallel to each other in the vertical direction of the annular magnetic element 153, and the distance between the two Hall sensors 132 is half the distance between a single magnetic pole, the magnetic field signals detected by the two Hall sensors 132 have a 90° phase difference.

[0081] Upon receiving magnetic field signals from the two Hall sensors 132, the control device 120 can determine the rotation direction of the annular magnetic element 153 based on the time difference between the rising and falling edges of each magnetic field signal, and thus determine the rolling direction of the rolling shaft 140. For example, if the rising edge of the first magnetic signal is earlier than the rising edge of the second magnetic signal, the rolling shaft 140 can be considered to rotate in the first direction; if the rising edge of the second magnetic signal is earlier than the rising edge of the first magnetic signal, the rolling shaft 140 can be considered to rotate in the second direction.

[0082] In some embodiments, multiple pairs of magnetic poles are uniformly distributed on the outer surface of the annular magnetic element 153 to facilitate the detection of the actual movement distance of the skin care device. For example, a counter is incremented each time the rotation of the rolling shaft 140 in a first direction is detected. The rolling distance of the rolling shaft 140 is calculated based on the counter value, the number of magnetic pole pairs, the spacing between individual magnetic poles, and the circumference of the rolling shaft, thereby determining the actual movement distance of the skin care device. When the actual movement distance of the skin care device reaches a preset distance threshold, and the rolling direction of the rolling shaft 140 is a preset direction, the control device 120 drives the skin care device 110, thereby achieving precise skin care and improving user experience and safety. Through the cooperation of the annular magnetic element 153 and multiple Hall sensors 132, this application can achieve sub-millimeter-level displacement detection accuracy, accurately detect the movement distance and direction of the skin care device, and ensure the precision of skin care. It can provide users with the skin care functions they need while improving the safety of device use.

[0083] Furthermore, in some examples, this application can enhance anti-interference capabilities and effectively eliminate false pulses caused by mechanical vibration or electromagnetic interference through the design of a dual Hall sensor 132 differential circuit and the application of software filtering algorithms, thereby ensuring the stability and reliability of the detection results.

[0084] Finally, it should be noted that in the description of this application, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0085] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0086] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0087] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0088] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0089] The terms “comprising,” “including,” or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0090] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The various embodiments can be combined as needed, and the same or similar parts can be referred to each other.

[0091] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A skin care device, characterized in that, include: A housing, the outer surface of which includes a first surface having a skin-care area; A skin care device, disposed within the housing, is used to provide skin care functions through the skin care area; A roller is mounted on the housing, and a portion of the roller protrudes from the first surface to allow the roller to roll on the skin; A direction detection device, including a direction detection circuit and a trigger module; The trigger module is located on the rolling shaft so that the trigger module can rotate as the rolling shaft rolls. The triggering module is used to trigger the direction detection circuit to output a direction detection signal according to the rolling direction of the rolling shaft; A control device is electrically connected to the direction detection circuit and the skin care device, respectively, for determining the target skin care function based on the direction detection signal output by the direction detection circuit, and driving the skin care device based on the target skin care function.

2. The skin care device according to claim 1, characterized in that, The trigger module includes at least one colored area located on the outer surface of the scroll shaft, and the colored area includes at least three color areas arranged sequentially along the circumference of the scroll shaft, the at least three color areas corresponding to different colors; The orientation detection circuit includes a color detection sensor disposed within the housing; the color detection sensor is electrically connected to the control device and is used to detect the regional color of the area to be detected on the outer surface of the rolling shaft and output a color detection signal.

3. The skin care device according to claim 2, characterized in that, The color detection sensor is an infrared transceiver integrated sensor.

4. The skin care device according to claim 1, characterized in that, The trigger module includes at least three first capacitor plates, which are disposed on the outer surface of the rolling shaft along the circumference of the rolling shaft; each first capacitor plate is used to form a capacitance with ground. The direction detection circuit is electrically connected to each of the first capacitor plates and the control device, and is used to output the direction detection signal according to the capacitance value corresponding to each of the first capacitor plates.

5. The skin care device according to claim 4, characterized in that, The direction detection circuit includes a frequency detection chip and at least three resistors; the at least three resistors are electrically connected to the at least three first capacitor plates in a one-to-one correspondence to form at least three RC oscillation circuits. The frequency detection chip is electrically connected to each of the RC oscillation circuits and the control device, and is used to detect the oscillation frequency of each of the RC oscillation circuits and output the direction detection signal according to each of the oscillation frequencies.

6. The skin care device according to claim 5, characterized in that, The frequency detection chip includes at least three first input terminals and at least three first output terminals, and the control device includes at least three second input terminals; the at least three first input terminals are electrically connected to the at least three RC oscillation circuits in a one-to-one correspondence, and the at least three first output terminals are electrically connected to the at least three second input terminals in a one-to-one correspondence. The frequency detection chip is used to determine the touch state signal corresponding to each of the first capacitor plates according to each of the oscillation frequencies, and output the touch state signal corresponding to each of the first capacitor plates through the at least three first output terminals.

7. The skin care device according to claim 5 or 6, characterized in that, The direction detection circuit also includes a filtering module, which is electrically connected to the power supply terminal of the frequency detection chip.

8. The skin care device according to claim 7, characterized in that, The filtering module includes a first capacitor and a second capacitor. The first terminal of the first capacitor is connected to the first terminal of the second capacitor and the power supply terminal, respectively. The second terminals of the first capacitor and the second capacitor are both used for grounding.

9. The skin care device according to claim 1, characterized in that, The triggering module is a ring-shaped magnetic component, and the outer surface of the ring-shaped magnetic component is distributed with multiple pairs of magnetic poles along the circumferential direction. The ring-shaped magnetic component is sleeved on the rolling shaft. The direction detection circuit includes at least two Hall sensors, each of which is electrically connected to the control device.

10. The skin care device according to claim 9, characterized in that, The multiple pairs of magnetic poles are evenly distributed on the outer surface of the annular magnetic component.

11. The skin care device according to any one of claims 1 to 6, 9, and 10, characterized in that, The skincare device includes at least one of the following components: a light source component, a cooling component, a heating component, an import / export component, an atomizing component, a radio frequency component, a microcurrent firming component, an ultrasonic component, and a microwave component.

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