Modularized system of waterproof beauty device based on magnetic connection and antiskid design

Abstract

The invention relates to the technical field of household beauty and skincare electronic equipment, and discloses a waterproof beauty device modularization system based on magnetic attraction connection and anti-skid design. Comprising a main body shell, a battery arranged in the main body shell, a mainboard PCB and a contact head assembly located at the front end of the main body shell, and the main body shell comprises a main body upper shell and a main body lower shell; the main body lower shell, the head lining plate, the head lower shell and the main body upper shell define a closed cavity to accommodate a battery and a mainboard PCB, and the main body lower shell, the head lining plate, the head lower shell and the main body upper shell are assembled by adopting a buckle structure; a magnetic attraction alignment structure is adopted between the front end of the main body shell and the contact head assembly; the surface of the main body shell is provided with silica gel anti-skid textures, and a conductive shielding layer is embedded into the silica gel anti-skid textures; the contact head assembly is rotatably arranged relative to the main body shell, the contact head assembly adopts a modular design, and the contact head assembly adopting the modular design comprises illumination heads with different wavelengths and customized electrode tips.

Description

Technical Field

[0001] This application relates to the field of home beauty and skincare electronic device technology, and in particular to a modular system for a waterproof beauty device based on magnetic connection and anti-slip design. Background Technology

[0002] Currently, the home beauty device market is booming, and consumers are increasingly demanding higher levels of functionality, safety, user experience, and personalization. Existing beauty devices, such as phototherapy devices and microcurrent devices, generally suffer from the following technical bottlenecks in terms of technology integration and user experience: Firstly, in terms of structural design, most products have fixed functional modules that cannot be replaced. Users who want to achieve different skincare functions (such as cleansing, anti-wrinkle, and skin rejuvenation) often need to purchase multiple independent devices, leading to high costs, inconvenient storage, and a lack of sustainability. While some products attempt modularization, their connections mostly rely on threaded tightening or physical clips, making replacement cumbersome, difficult to align, and prone to wear and tear during frequent replacements, affecting connection accuracy and electrical contact reliability.

[0003] Secondly, waterproofing is crucial for beauty applications involving contact with water or steam. Existing waterproofing designs typically rely on integral potting or complex sealing structures, making disassembly and maintenance difficult. Damage to internal core components (such as the motherboard or battery) essentially renders the entire device unusable. Furthermore, the module connections are particularly vulnerable to leaks, easily allowing liquids to seep in and cause short circuits due to inadequate sealing.

[0004] Furthermore, there are significant shortcomings in terms of user experience. The device's outer casing is made of a smooth material, which makes it prone to slipping when wet or used with skincare products, posing a safety risk. At the same time, switching between different functional modules often requires users to manually adjust complex parameter settings, lacking intelligent adaptive capabilities and being unfriendly to non-professional users.

[0005] In addition, electromagnetic interference is often overlooked. The various high-frequency circuits integrated inside beauty devices (such as laser drive and EMS microcurrent) can generate electromagnetic interference with each other, affecting the accuracy of sensing signals and potentially impacting surrounding electronic equipment.

[0006] Therefore, a system is urgently needed to solve at least one of the above problems. Summary of the Invention

[0007] This application provides a modular waterproof beauty device system based on magnetic connection and anti-slip design, aiming to solve the urgent need in the field for an integrated beauty device system solution that can simultaneously solve the problems of convenient modular connection, high-level waterproofing, anti-slip safety and anti-interference, and intelligent self-adaptive capabilities.

[0008] In a first aspect, this application provides a modular system for a waterproof beauty device based on magnetic connection and anti-slip design, including a main body shell, a battery, a motherboard PCB disposed inside the main body shell, and a contact head assembly located at the front end of the main body shell, wherein the main body shell includes an upper body shell and a lower body shell; The lower main shell, head liner, lower head shell, and upper main shell form a sealed cavity to accommodate the battery and motherboard PCB. The lower main shell, head liner, lower head shell, and upper main shell are assembled using a snap-fit ​​structure, and a sealing ring is embedded in the gap of the snap-fit ​​structure to form a sealing barrier. The front end of the main shell and the contact head assembly adopt a magnetic alignment structure, including a first strong magnet disposed at the front end of the main shell and a second strong magnet disposed at the contact head assembly. The first strong magnet and the second strong magnet have opposite magnetic properties to achieve adsorption connection. The surface of the main body shell is provided with a silicone anti-slip texture, and a conductive shielding layer is embedded inside the silicone anti-slip texture; the contact head assembly is rotatably disposed relative to the main body shell, and the contact head assembly adopts a modular design. The modular design of the contact head assembly includes different wavelength light heads and customized electrode heads. A modular interface is provided at the connection between the main body shell and the contact head assembly. The modular interface is used to realize the electrical connection between the circuit inside the main body shell and the contact head assembly.

[0009] In some embodiments, the contact head assembly includes a sapphire glass contact head, which adopts a 2.5D glass design and incorporates a chamfered structure. The sapphire glass contact head is provided with an EMS electrode, which is fabricated using a screen printing process and is flush with the surface of the sapphire glass. The VCSEL laser emission position is set to avoid the EMS electrode. The main body housing is provided with a Type-C interface, and a silicone gasket is provided at the Type-C interface for sealing.

[0010] In some embodiments, a temperature intelligent control module is provided on the motherboard PCB. The temperature intelligent control module is configured to: monitor the surface temperature data of the contact head assembly in real time; compare the surface temperature data with a preset safe temperature threshold; automatically cut off the power supply line to the contact head assembly when the temperature exceeds the threshold; continuously monitor temperature changes; and restore the power supply connection to the contact head assembly when the temperature drops to within the safe threshold range.

[0011] In some embodiments, the motherboard PCB integrates a skin condition intelligent analysis unit, which is configured to: send a low voltage detection signal to the electrode head of the contact head assembly through a modular interface; receive a skin impedance feedback signal returned by the electrode head; analyze the skin impedance signal to calculate skin moisture content or sebum secretion parameters; and output corresponding skin care suggestions based on the calculated parameters.

[0012] In some embodiments, the motherboard PCB is provided with a light mode adaptive module, which is configured to: acquire skin type information input by the user or skin state parameters detected by the contact head assembly; the skin type information includes dry, oily or sensitive; use a preset machine learning algorithm to match the skin information with the light mode database to determine the optimal wavelength and power parameters; and control the light head in the contact head assembly to output light according to the matched parameters.

[0013] In some embodiments, a magnetic connection status detection module is provided at the front end of the main body shell. The magnetic connection status detection module is configured to: monitor the relative position signal between the first strong magnet and the second strong magnet in real time; compare the position signal with a preset stable connection threshold to determine whether the contact head assembly is in a loose state; and when it is determined to be loose, send an unstable connection prompt to the user through an indicator light on the main body shell or vibration.

[0014] In some embodiments, the conductive shielding layer inside the silicone anti-slip texture also serves as a grip state detection sensor. The conductive shielding layer is configured to: detect the force distribution of the user's grip on the main body shell and the finger contact position signal; determine the stability of the user's grip based on the force and position signals; and when it is determined to be unstable, automatically reduce the output power of the contact head assembly and provide grip state feedback through vibration.

[0015] In some embodiments, the modular interface is provided with a contact head authorization management unit, which is configured to: read electronic identification information on the contact head component; compare the electronic identification information with a preset original authorization list to verify the legality of the contact head; when it is verified to be a non-original contact head, restrict its use of advanced functions and prompt the user to use the original component.

[0016] In some embodiments, the motherboard PCB integrates a usage scenario intelligent switching module, which is configured to: detect the temperature, humidity or water contact signal of the current environment; determine the user's usage scenario based on the environmental signal; and automatically switch the device to the corresponding scenario's operating mode.

[0017] In some embodiments, the motherboard PCB is provided with a fault intelligent diagnosis and repair module, which is configured to: collect operating data of each module of the device in real time; the operating data includes current, voltage and contact connection status; perform anomaly detection on the operating data and identify fault characteristics; diagnose the fault type according to the fault characteristics; the fault type includes at least short circuit of contact assembly or over-discharge of battery; perform automatic repair operation and generate and display fault information and solutions.

[0018] This invention achieves rapid adsorption and precise alignment of the contact head assembly through a "magnetic alignment structure," combined with a "modular interface" to enable plug-and-play electrical connection, making function switching extremely convenient. The magnetic connection avoids the wear problem of threaded snap-fit ​​connections. Simultaneously, the "sealing ring embedded in the snap-fit ​​structure gap" works in conjunction with the magnetic structure to construct a "sealed cavity" and "sealing barrier" while ensuring modular convenience, thus solving the waterproofing problem at the connection points of modular devices.

[0019] The main body lower shell, head liner, head lower shell and main body upper shell are connected by buckles and sealing rings to form a sealed cavity, which provides IPX7 / IPX8 level protection for the internal battery and motherboard PCB, greatly improving the product's durability and applicability (such as bathroom scenarios).

[0020] The "silicone anti-slip texture" directly improves the stability and safety of the grip, preventing slippage. The unique design of "a conductive shielding layer embedded within the silicone anti-slip texture" combines physical anti-slip functionality with electromagnetic shielding, effectively suppressing internal circuit noise and external interference without adding extra components or increasing size, thus improving the accuracy of functions such as micro-current detection.

[0021] The "rotatable contact head assembly relative to the main body shell" allows for adjustable treatment angles, better conforming to facial contours. The modular selection of "different wavelength light heads and customized electrode heads" enables a single unit to meet diverse skincare needs, achieving functional scalability and personalized customization.

[0022] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the first structure of a modular waterproof beauty device system based on magnetic connection and anti-slip design provided in an embodiment of this application; Figure 2 This is a schematic diagram of the second structure of a modular waterproof beauty device system based on magnetic connection and anti-slip design provided in an embodiment of this application; Figure 3 This is an exploded view of a modular waterproof beauty device system based on magnetic connection and anti-slip design, provided in one embodiment of this application.

[0025] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Detailed Implementation

[0026] 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, 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.

[0027] The flowchart shown in the attached diagram is for illustrative purposes only and does not necessarily include all content and operations / steps, nor does it necessarily have to be performed in the order described. For example, some operations / steps can be broken down, combined, or partially merged, so the actual execution order may change depending on the actual situation.

[0028] It should be understood that, in order to clearly describe the technical solutions of the embodiments of the present invention, the terms "first" and "second" are used in the embodiments of the present invention to distinguish identical or similar items with essentially the same function and effect. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, and the terms "first" and "second" are not necessarily different.

[0029] It should be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0030] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0031] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0032] Currently, the home beauty device market is booming, and consumers are increasingly demanding higher levels of functionality, safety, user experience, and personalization. Existing beauty devices, such as phototherapy devices and microcurrent devices, generally suffer from the following technical bottlenecks in terms of technology integration and user experience: Firstly, in terms of structural design, most products have fixed functional modules that cannot be replaced. Users who want to achieve different skincare functions (such as cleansing, anti-wrinkle, and skin rejuvenation) often need to purchase multiple independent devices, leading to high costs, inconvenient storage, and a lack of sustainability. While some products attempt modularization, their connections mostly rely on threaded tightening or physical clips, making replacement cumbersome, difficult to align, and prone to wear and tear during frequent replacements, affecting connection accuracy and electrical contact reliability.

[0033] Secondly, waterproofing is crucial for beauty applications involving contact with water or steam. Existing waterproofing designs typically rely on integral potting or complex sealing structures, making disassembly and maintenance difficult. Damage to internal core components (such as the motherboard or battery) essentially renders the entire device unusable. Furthermore, the module connections are particularly vulnerable to leaks, easily allowing liquids to seep in and cause short circuits due to inadequate sealing.

[0034] Furthermore, there are significant shortcomings in terms of user experience. The device's outer casing is made of a smooth material, which makes it prone to slipping when wet or used with skincare products, posing a safety risk. At the same time, switching between different functional modules often requires users to manually adjust complex parameter settings, lacking intelligent adaptive capabilities and being unfriendly to non-professional users.

[0035] In addition, electromagnetic interference is often overlooked. The various high-frequency circuits integrated inside beauty devices (such as laser drive and EMS microcurrent) can generate electromagnetic interference with each other, affecting the accuracy of sensing signals and potentially impacting surrounding electronic equipment.

[0036] Therefore, there is an urgent need in this field for an integrated beauty device system solution that can simultaneously solve the problems of modular and convenient connection, high-level waterproofing, anti-slip safety and anti-interference, and intelligent adaptive capabilities.

[0037] To solve the above problem, please refer to Figures 1 to 3This application provides a modular system for a waterproof beauty device based on magnetic connection and anti-slip design, including a main body shell, a battery, a main board PCB disposed within the main body shell, and a contact head assembly located at the front end of the main body shell. The main body shell includes an upper body shell and a lower body shell; the lower body shell, head liner, lower head shell, and upper body shell form a sealed cavity to accommodate the battery and main board PCB. The lower body shell, head liner, lower head shell, and upper body shell are assembled using a snap-fit ​​structure, and a sealing ring is embedded in the gap of the snap-fit ​​structure to form a sealing barrier; the front end of the main body shell and the contact head assembly are connected by a magnetic alignment structure, including... A first strong magnet and a second strong magnet are disposed at the front end of the main body shell and disposed on the contact head assembly, respectively. The first strong magnet and the second strong magnet have opposite magnetic properties to achieve adsorption connection. The surface of the main body shell is provided with a silicone anti-slip texture, and a conductive shielding layer is embedded inside the silicone anti-slip texture. The contact head assembly is rotatably disposed relative to the main body shell and adopts a modular design. The modular design of the contact head assembly includes light heads of different wavelengths and customized electrode heads. A modular interface is provided at the connection between the main body shell and the contact head assembly. The modular interface is used to realize the electrical connection between the circuit inside the main body shell and the contact head assembly.

[0038] For example, such as Figure 3 As shown, the provided modular system of waterproof beauty device based on magnetic connection and anti-slip design includes a top cover 1, a first strong magnet 2, a top cover liner 3, a head shell 4, sapphire glass 5, EMS electrodes 6, an EMS motherboard 7, a second strong magnet 8, an LED indicator board 9, a head liner 10, a main body lower shell 11, a base shell 12, a silicone pad 13, a main body shell 14, a data cable interface cover 15 (such as a Type-C cover), a power button 16, a gear button 17, a head lower shell 18, a battery 19, a motherboard PCB 20, a main body upper shell 21, and a snap-fit ​​structure 22.

[0039] Specifically, this system aims to comprehensively address the current technical bottlenecks in modularity, waterproofing, anti-slip properties, anti-interference, and intelligence of home beauty devices through a series of innovative structural, material, and circuit designs. Its core idea is to construct a powerful and reliable "host platform," which, combined with various quickly replaceable "functional heads," achieves an integrated intelligent beauty solution.

[0040] The system abandons traditional threads or mechanical clips, embedding a first powerful magnet at the front end of the main body shell and a second powerful magnet at the rear of the replaceable contact head assembly (such as the light head or electrode head). Through the strong magnetic force generated by the opposing poles, the main body and the functional head achieve a rapid and precise magnetic connection.

[0041] The magnetic structure features self-alignment; when the user approaches, the magnetic force automatically guides the functional head to accurately align with the modular interface of the main body. This interface uses gold-plated spring pins or magnetic charging pins as electrical connection points. A stable electrical connection is automatically established upon physical attraction, eliminating the need for cumbersome plugging, unplugging, or rotating operations. This achieves "one-second switching" of functions, greatly improving ease of use. It avoids wear and tear caused by frequent mechanical connections, ensuring connection accuracy and electrical contact reliability for long-term use.

[0042] The sealed cavity housing the core components (battery, motherboard PCB) is formed by the lower main shell, head liner, lower head shell, and upper main shell. These components are assembled using a snap-fit ​​structure, and sealing rings are embedded in all the gaps and joints of the snaps to form the first reliable sealing barrier, effectively preventing moisture from entering from the seams of the body.

[0043] The magnetic connection between the main body and the contact head assembly is a key point for waterproofing. A sophisticated sealing structure is designed here, such as a ring-shaped silicone gasket around the modular interface. When the functional head is magnetically attached, it tightly compresses this gasket, creating a waterproof "spout" effect that ensures liquids will not seep into the main unit even in water or steam environments.

[0044] This design makes the main unit no longer a "disposable" product. When internal core components need repair or replacement, the snap-fit ​​structure can be disassembled without damage (the sealing ring is replaceable), greatly improving the product's maintainability and lifespan.

[0045] The main casing is covered with a silicone anti-slip texture. This material provides extremely high friction whether dry, wet, or used with serum, effectively preventing the device from slipping from wet hands and improving operational safety.

[0046] Inside the aforementioned silicone anti-slip texture, a conductive shielding layer (such as a metal mesh or conductive cloth) is cleverly embedded. This shielding layer is connected to the ground wire of the motherboard, forming a Faraday cage, which can effectively absorb and guide the electromagnetic radiation generated by the high-frequency circuits (such as lasers and microcurrents) inside the beauty device during operation, preventing them from interfering with the internal precision sensors and external electronic equipment, and ensuring the accuracy and stability of the treatment signal.

[0047] Each modular contact head assembly has an embedded identification chip (such as RFID or a specific resistor). When the functional head is connected to the host, the motherboard can automatically identify which functional head is currently installed (such as a red light therapy head, a microcurrent massage head, etc.).

[0048] Based on the identified function header information, the intelligent control system within the motherboard automatically calls the preset optimal operating parameters for that function (such as light wavelength, light intensity, current intensity, frequency, and duration). Users do not need to perform any complex manual settings; they can use it immediately upon powering on, achieving a "plug and play" intelligent experience that is extremely user-friendly for non-professional users.

[0049] The contact head assembly can rotate relative to the main body shell, allowing users to operate at the most comfortable angle that best fits their facial contours, further optimizing the user experience.

[0050] Users can choose the appropriate wavelength light head or customized electrode head according to their skin care needs (such as deep cleansing, anti-wrinkle and firming, brightening and skin rejuvenation).

[0051] Simply bring the selected functional head close to the front of the main unit, and under the guidance of the magnetic force, it will easily attach and connect with a "click," completing the electrical connection automatically.

[0052] Users can use it in the shower or after applying a face mask. Thanks to the silicone anti-slip texture on the surface of the device, it can be held firmly even if the hands and the device are wet or have skin care products on them.

[0053] Multi-layered waterproof sealing ensures safe operation of the equipment in humid environments, and users do not need to worry about liquid seepage causing damage to the equipment.

[0054] After the device is powered on, the motherboard automatically recognizes the function heads and loads the corresponding programs. For example, installing a red light head will automatically enter the skin rejuvenation mode and output red light of a specific wavelength; installing a microcurrent head will automatically enter the tightening mode and output a safe microcurrent.

[0055] Throughout the entire process, the built-in conductive shielding layer continues to work, ensuring that the signals of microcurrents or photosensitive elements are not affected by internal electromagnetic interference, thus guaranteeing the accuracy and consistency of therapeutic effects.

[0056] If the equipment requires maintenance, technicians can open the casing without damage along specific latch points, replace the battery or motherboard, replace the new sealing ring, and reassemble to restore its waterproof performance. The functional heads are independent modules that can be purchased and replaced separately, eliminating the need for users to replace the entire unit due to function upgrades or damage to a single functional head—making it economical and environmentally friendly.

[0057] This system achieves modular convenience and reliability through magnetic alignment, high-level waterproofing and maintainability through snap-fit ​​sealing rings and interface seals, and addresses safe grip and electromagnetic interference issues through a silicone anti-slip textured embedded shielding layer. Furthermore, intelligent recognition and adaptive technology simplify user operation. This integrated solution effectively overcomes several technical pain points in the current beauty device market, bringing users a safe, convenient, efficient, and personalized beauty and skincare experience.

[0058] In some embodiments, the contact head assembly includes a sapphire glass contact head, which adopts a 2.5D glass design and incorporates a chamfered structure. The sapphire glass contact head is provided with an EMS electrode, which is fabricated using a screen printing process and is flush with the surface of the sapphire glass. The VCSEL laser emission position is set to avoid the EMS electrode. The main body housing is provided with a Type-C interface, and a silicone gasket is provided at the Type-C interface for sealing.

[0059] This embodiment focuses on the refinement and reliability of components and external interfaces that come into direct contact with the skin. Key features include: a sapphire glass contact head using high-hardness, high-transmittance, and biocompatible sapphire glass as the contact surface to ensure durability and comfort. Its 2.5D glass design (with rounded edges) combined with a chamfered structure provides a smooth transition, avoiding sharp angles that could scratch the skin and improving comfort during gliding.

[0060] The EMS (microcurrent) electrodes are fabricated directly onto sapphire glass using a screen printing process, ensuring the electrode surface is flush with the glass surface. This design achieves a seamless, smooth contact surface, avoiding the protrusions or depressions of traditional electrodes. This ensures effective microcurrent conduction while facilitating cleaning and preventing dirt accumulation. The light emission point of the VCSEL laser (commonly used for skin rejuvenation, hair regrowth, etc.) is intentionally positioned in an area away from the EMS electrodes to prevent mutual obstruction and interference.

[0061] A dedicated silicone pad is used to seal the Type-C charging / data port on the main casing, ensuring that this common water ingress point also has a high level of waterproof capability.

[0062] When using the functional module with this contact head, the smooth feel of the sapphire glass and its chamfered design allow the device to move very smoothly across the face. During operation, a microcurrent is evenly applied to the skin through flush printed electrodes, while a VCSEL laser is precisely emitted from the electrode-free area; the two functions work synergistically without interference. When charging, the silicone pad at the Type-C port is tightly compressed, forming an effective waterproof barrier, ensuring that accidental water contact with the port will not affect the internal circuitry.

[0063] In some embodiments, a temperature intelligent control module is provided on the motherboard PCB. The temperature intelligent control module is configured to: monitor the surface temperature data of the contact head assembly in real time; compare the surface temperature data with a preset safe temperature threshold; automatically cut off the power supply line to the contact head assembly when the temperature exceeds the threshold; continuously monitor temperature changes; and restore the power supply connection to the contact head assembly when the temperature drops to within the safe threshold range.

[0064] This embodiment aims to address the risk of overheating that may occur during prolonged use of beauty devices, ensuring safe operation. The system achieves this through an intelligent temperature control module. A temperature sensor installed near the contact head assembly continuously collects its surface temperature data. The real-time temperature data is compared to a preset safe temperature threshold (e.g., 41°C). If the temperature exceeds the threshold, the module immediately triggers a safety mechanism, automatically cutting off power to the contact head assembly. The system continuously monitors temperature changes; when the contact head temperature naturally decreases due to the power outage and falls back below the safe threshold, the module automatically restores power, allowing the equipment to resume normal operation without user intervention.

[0065] If a user remains in one spot for an extended period during a temperature-sensitive treatment (such as applying heat to promote absorption), causing the local temperature to become too high, the system will automatically shut off to prevent burns. Once the user moves the device and the temperature drops, the treatment function will automatically resume.

[0066] In some embodiments, the motherboard PCB integrates a skin condition intelligent analysis unit, which is configured to: send a low voltage detection signal to the electrode head of the contact head assembly through a modular interface; receive a skin impedance feedback signal returned by the electrode head; analyze the skin impedance signal to calculate skin moisture content or sebum secretion parameters; and output corresponding skin care suggestions based on the calculated parameters.

[0067] This embodiment endows the device with preliminary skin diagnostic capabilities to achieve personalized care. The workflow of the intelligent skin condition analysis unit is as follows: A safe, low-voltage detection signal is sent to the electrode heads on the contact head assembly via a modular interface. The impedance signal fed back from the skin by the electrode heads is received. Based on the correlation between skin conductivity and moisture and oil content, a built-in algorithm calculates parameters such as skin moisture content or oil secretion level. Based on the analysis results, corresponding skin care suggestions are output via the app or device indicator lights, such as "Insufficient moisture, we recommend using moisturizing mode."

[0068] The user places the functional module with the electrode head against the skin and activates the detection mode. The device completes the detection within seconds and informs the user that "the skin is currently producing more oil," then intelligently recommends or automatically switches to a deep cleansing mode.

[0069] In some embodiments, the motherboard PCB is provided with a light mode adaptive module, which is configured to: acquire skin type information input by the user or skin state parameters detected by the contact head assembly; the skin type information includes dry, oily or sensitive; use a preset machine learning algorithm to match the skin information with the light mode database to determine the optimal wavelength and power parameters; and control the light head in the contact head assembly to output light according to the matched parameters.

[0070] This embodiment focuses on phototherapy, achieving intelligent matching of light parameters. The functions of the adaptive light mode module include: The system acquires the user's manually inputted skin type (dry, oily, sensitive) or directly uses detected skin condition parameters. A pre-defined machine learning algorithm matches the acquired skin information with a vast database of light patterns. This database stores the most effective wavelengths and energy ratios for different skin problems and types. Based on the matching results, the optimal wavelength and power parameters are determined, and the light head is controlled to output precisely accordingly.

[0071] When using the app for the first time, users should select "Sensitive Skin" in the accompanying app. Afterwards, when using the red light anti-wrinkle function, the module will automatically select a lower energy power and a specific red light wavelength suitable for sensitive skin to avoid irritation.

[0072] In some embodiments, a magnetic connection status detection module is provided at the front end of the main body shell. The magnetic connection status detection module is configured to: monitor the relative position signal between the first strong magnet and the second strong magnet in real time; compare the position signal with a preset stable connection threshold to determine whether the contact head assembly is in a loose state; and when it is determined to be loose, send an unstable connection prompt to the user through an indicator light on the main body shell or vibration.

[0073] This embodiment ensures the continuous reliability of modular connections, preventing functional failures or safety hazards due to poor connections. The magnetic connection status detection module detects the connection status through: Using components such as Hall effect sensors, the relative position signals of the first and second strong magnets between the main body and the contact head are monitored in real time. These position signals are compared with a preset stable connection threshold to determine if the contact head is tilted or loose. If an unstable connection is detected, an alarm is immediately issued to the user via flashing LED indicators or a short vibration.

[0074] If the contact head is accidentally bumped during use, causing the connection to become slightly loose but not yet detached, the device will immediately vibrate and light up a red light to remind the user to reconnect it tightly, ensuring effective and safe treatment.

[0075] In some embodiments, the conductive shielding layer inside the silicone anti-slip texture also serves as a grip state detection sensor. The conductive shielding layer is configured to: detect the force distribution of the user's grip on the main body shell and the finger contact position signal; determine the stability of the user's grip based on the force and position signals; and when it is determined to be unstable, automatically reduce the output power of the contact head assembly and provide grip state feedback through vibration.

[0076] This embodiment reuses and upgrades the original conductive shielding layer, making it an intelligent interactive interface.

[0077] Embedded within the silicone anti-slip texture, the conductive shielding layer, in addition to its original electromagnetic shielding function, is also designed as a capacitive or pressure sensor array. This sensor can detect the force distribution of the user's grip and the specific location of finger contact. Based on the force and position signals, it analyzes whether the user's grip is stable. When an unstable grip is determined (e.g., single-point force, too little force), the system automatically reduces the output power (e.g., micro-current intensity) and simultaneously provides feedback on the current state through changing vibration patterns, reminding the user to adjust their grip.

[0078] When a user's hands are covered in serum and they hold the device's end only with their fingertips, the sensor detects an unstable grip signal. The device immediately reduces its output power to a safe range and generates an intermittent "buzzing" vibration until the user grips it firmly with their entire palm, at which point the power and vibration indicators return to normal.

[0079] In some embodiments, the modular interface is provided with a contact head authorization management unit, which is configured to: read electronic identification information on the contact head component; compare the electronic identification information with a preset original authorization list to verify the legality of the contact head; when it is verified to be a non-original contact head, restrict its use of advanced functions and prompt the user to use the original component.

[0080] This embodiment ensures product quality, user experience, and device safety through software means. At the modular interface, pre-stored electronic identification information (such as the ID code in an encryption chip) on the contact head assembly is read. This identification information is compared with the original authorized list pre-stored in the system firmware. If the contact head is verified to be non-original or unauthorized, the management unit will restrict its use of advanced or high-power functions and prompt the user to use original components via the app or on the screen to ensure therapeutic efficacy and avoid equipment damage or personal injury caused by inferior parts.

[0081] If a user purchases a cheap third-party microcurrent probe, when it is attached to the main unit, the main unit will recognize that its ID is not on the authorized list, and will disable its operation or only allow it to operate at the lowest safe power, while displaying on the screen "Please use genuine original contacts for the best experience and safety".

[0082] In some embodiments, the motherboard PCB integrates a usage scenario intelligent switching module, which is configured to: detect the temperature, humidity or water contact signal of the current environment; determine the user's usage scenario based on the environmental signal; and automatically switch the device to the corresponding scenario's operating mode.

[0083] This embodiment enables the device to sense the environment and automatically adapt to the best working mode.

[0084] Environmental sensing detects the current ambient temperature, humidity, or presence of water contact signals through built-in temperature and humidity sensors or liquid contact sensors.

[0085] Scene detection and mode switching determine the usage scenario based on environmental signals (such as a dry bedroom, a damp bathroom, or when using a water-based face mask). Based on the detected scenario, it automatically switches to the corresponding preset mode. For example, in a bathroom, it automatically enhances waterproof detection and enables anti-slip warnings, while in a dry environment, it optimizes heat dissipation strategies.

[0086] If the user takes this device with them while showering, the ambient humidity sensor will detect high humidity, and the module will automatically activate "Bathroom Mode," which may slightly adjust the temperature control threshold and ensure that all safety alert functions are at their highest sensitivity.

[0087] In some embodiments, the motherboard PCB is provided with a fault intelligent diagnosis and repair module, which is configured to: collect operating data of each module of the device in real time; the operating data includes current, voltage and contact connection status; perform anomaly detection on the operating data and identify fault characteristics; diagnose the fault type according to the fault characteristics; the fault type includes at least short circuit of contact assembly or over-discharge of battery; perform automatic repair operation and generate and display fault information and solutions.

[0088] This embodiment endows the device with self-checking and preliminary repair capabilities, improving product reliability. It collects operational data from each module in real time, including current, voltage, temperature, and connection status. The operational data is analyzed in real time, and fault characteristics are identified through anomaly detection algorithms (e.g., a sudden increase in current may indicate a short circuit). The fault type is diagnosed based on these characteristics. For software-related or recoverable faults (e.g., program freezes), automatic repair operations are attempted (e.g., restarting specific circuits or resetting drivers). Finally, clear fault information and solutions are generated and displayed to the user.

[0089] The device experienced a momentary short circuit in its micro-current module circuit due to accidental water ingress. The diagnostic module detected an abnormal current peak and immediately cut off the power. The diagnostic result was "Momentary short circuit at the contact point, protection activated." The screen then displayed: "Please dry the device and contact point connections, and then try using it again. If the problem persists, please contact customer service."

[0090] In some embodiments, a reinforcement learning algorithm is introduced as the brain of the system. Instead of simply executing preset programs, it learns and optimizes the skincare regimen best suited for the user through continuous interaction.

[0091] The engine continuously receives multidimensional data from various sensors, forming a "state," including: real-time skin impedance (moisture / oil), ambient temperature and humidity during treatment, user habits (grip pressure, movement speed), and subjective feedback submitted by the user via the app afterward (such as "My skin feels very tight today," "Redness seems to have lessened"). The engine's "action" involves dynamically adjusting treatment parameters (such as microcurrent waveform, phototherapy power, and alternating hot and cold rhythm). The algorithm uses "short-term user comfort" and "long-term skincare effect feedback" as reward signals. Through continuous trial and evaluation, it ultimately learns a "skincare strategy" specifically tailored to the user, delivering the best long-term results.

[0092] For example, User A's skin is sensitive to high-intensity microcurrents. After initial use, she reported a "tingling sensation" on the app. The reinforcement learning engine recorded this "state-action-low reward" data.

[0093] In subsequent sessions, the engine will attempt to slightly reduce the current intensity and extend the radiofrequency treatment time. A few days later, the user reported "a great tightening sensation and no discomfort." The engine thus receives a "high reward" and reinforces this strategy. After several weeks of learning, the system customizes a unique combination of "low current - long radiofrequency - hybrid light therapy" for user A. This combination does not exist in the official presets, but it is the most effective "exclusive formula" for user A.

[0094] In some embodiments, high-frequency skin impedance data detected during each use, regularly captured local macro images, and lifestyle data (such as sleep and diet) from user logs are correlated and analyzed.

[0095] The system employs time-series anomaly detection algorithms and association rule learning to analyze long-term data trends. It can identify sub-health conditions such as "accelerated skin moisture loss for three consecutive days" and automatically backtracks data, discovering that this trend always occurs after the user records "staying up late."

[0096] The system will proactively send alerts to users: "We have detected a weakening trend in your skin barrier, which may be related to your recent lifestyle. We recommend using 'Repair Mode' tonight and increasing hydration." When users achieve good results, the system can analyze which functional modules and parameter combinations played a key role, forming reusable experience.

[0097] By analyzing the user's data over the past month, the system found that whenever the ambient PM2.5 concentration increased, the user's skin oil secretion and inflammatory factor levels (estimated by impedance characteristics) would rise 24 hours later.

[0098] Therefore, when the weather forecast predicts smog, the system will send a notification in advance: "The air quality will be poor tomorrow. We recommend that you use the 'Deep Cleaning and Anti-Pollution' mode to prevent clogged pores and inflammation." In some embodiments, each user's device locally trains a local machine learning model using their private data to predict skincare effects. Instead of uploading raw data, all users' devices encrypt the parameters of their trained local models and upload them to a cloud server. The cloud server uses a federated learning algorithm to aggregate the parameters of thousands of local models, updating them to form a more powerful and general "global skincare model." This updated global model is then distributed to all users, allowing each device to benefit from the "collective wisdom" of the entire user base.

[0099] The system discovered a group of users with skin types similar to User B (oily and sensitive skin) who experienced significant improvement in their blackhead problems after using a specific "blue-green light alternating pulse" pattern. This pattern was captured and validated as effective by the global model.

[0100] The next time User B selects the "remove blackheads" function, her device will intelligently recommend this highly efficient sub-mode, discovered by "collective intelligence" and which may not have even been conceived in the official laboratory.

[0101] In some embodiments, "dynamic and precise delivery" is achieved through intelligent algorithms. When outputting microcurrents, the system monitors the impedance changes of the skin circuitry at extremely high frequencies. An adaptive control algorithm is employed, treating the skin as a dynamically changing circuit. The algorithm calculates in real time the optimal voltage and waveform required to ensure the preset current penetrates the skin most effectively and comfortably. Based on the real-time impedance, the algorithm dynamically synthesizes the most suitable current waveform (such as square waves, triangle waves, sine waves, and complex modulations of their combinations) to overcome the resistance of the stratum corneum and deliver energy more precisely to the target skin layer.

[0102] User C has a thicker stratum corneum on their forehead and a thinner stratum corneum on their cheeks. When the device glides from the forehead to the cheeks, the impedance monitoring circuit detects a sharp drop in resistance. The adaptive algorithm responds instantly, lowering the output voltage and fine-tuning the pulse frequency within milliseconds to ensure that the current intensity remains stable and effective across all areas of the face, avoiding excessive irritation in areas with thin skin.

[0103] In some embodiments, augmented reality and computer vision technologies are used to combine virtual information with real-world operations to achieve precise skincare that is "what you see is what you get".

[0104] Using the phone's camera or built-in miniature sensors, the system constructs a real-time 3D model of the user's face and tracks the device's position. AR technology overlays virtual guidance on the phone screen, such as, "Please circle this area for 5 seconds." Simultaneously, it tracks whether the device is used according to the guidance.

[0105] Before the treatment begins, users can select a target (such as "reduce nasolabial folds") in the AR interface. The system will then simulate the expected effect of the treatment on the user's face in real time, providing an intuitive visual stimulus.

[0106] The user opens the accompanying app, and the camera activates. After selecting the "Lifting and Firming" program, her facial contours are rendered more clearly and firmly by a smart algorithm. As she operates the device following the arrows on the screen, the virtual firming effect changes accordingly, allowing her to clearly see the direction of her efforts and receive immediate feedback, greatly enhancing user compliance and enjoyment.

[0107] This invention achieves rapid adsorption and precise alignment of the contact head assembly through a "magnetic alignment structure," combined with a "modular interface" to enable plug-and-play electrical connection, making function switching extremely convenient. The magnetic connection avoids the wear problem of threaded snap-fit ​​connections. Simultaneously, the "sealing ring embedded in the snap-fit ​​structure gap" works in conjunction with the magnetic structure to construct a "sealed cavity" and "sealing barrier" while ensuring modular convenience, thus solving the waterproofing problem at the connection points of modular devices.

[0108] The main body lower shell, head liner, head lower shell and main body upper shell are connected by buckles and sealing rings to form a sealed cavity, which provides IPX7 / IPX8 level protection for the internal battery and motherboard PCB, greatly improving the product's durability and applicability (such as bathroom scenarios).

[0109] The "silicone anti-slip texture" directly improves the stability and safety of the grip, preventing slippage. The unique design of "a conductive shielding layer embedded within the silicone anti-slip texture" combines physical anti-slip functionality with electromagnetic shielding, effectively suppressing internal circuit noise and external interference without adding extra components or increasing size, thus improving the accuracy of functions such as micro-current detection.

[0110] The "rotatable contact head assembly relative to the main body shell" allows for adjustable treatment angles, better conforming to facial contours. The modular selection of "different wavelength light heads and customized electrode heads" enables a single unit to meet diverse skincare needs, achieving functional scalability and personalized customization.

[0111] It should be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. It should be understood that when an element or layer is referred to as “on,” “adjacent to,” “connected to,” or “coupled to” other elements or layers, it may be directly on, adjacent to, connected to, or coupled to other elements or layers, or there may be intervening elements or layers. Conversely, when an element is referred to as “directly on,” “directly adjacent to,” “directly connected to,” or “directly coupled to” other elements or layers, there are no intervening elements or layers. It should be understood that although the terms first, second, third, etc., may be used to describe various elements, components, areas, layers, and / or portions, these elements, components, areas, layers, and / or portions should not be limited by these terms. These terms are merely used to distinguish one element, component, area, layer, or portion from another element, component, area, layer, or portion. Therefore, without departing from the teachings of this application, the first element, component, area, layer, or portion discussed below may be referred to as a second element, component, area, layer, or portion.

[0112] Spatial relation terms such as “below,” “under,” “below,” “under,” “above,” “above,” etc., are used herein for convenience of description to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms are intended to also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, then the element or feature described as “below,” “under,” or “below” other elements or features will be oriented “above” other elements or features. Therefore, the exemplary terms “below” and “under” can include both above and below orientations. The device may be otherwise oriented (rotated 90 degrees or otherwise) and the spatial descriptive terms used herein will be interpreted accordingly.

[0113] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. When used herein, the singular forms “a,” “an,” and “the” are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising” and / or “including,” when used in this specification, identify the presence of the stated features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups. When used herein, the term “and / or” includes any and all combinations of the associated listed items.

[0114] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0115] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A modular system for a waterproof beauty device based on magnetic connection and anti-slip design, characterized in that, It includes a main body shell, a battery disposed inside the main body shell, a motherboard PCB, and a contact head assembly located at the front end of the main body shell. The main body shell includes an upper body shell and a lower body shell. The lower main shell, head liner, lower head shell, and upper main shell form a sealed cavity to accommodate the battery and motherboard PCB. The lower main shell, head liner, lower head shell, and upper main shell are assembled using a snap-fit ​​structure, and a sealing ring is embedded in the gap of the snap-fit ​​structure to form a sealing barrier. The front end of the main shell and the contact head assembly adopt a magnetic alignment structure, including a first strong magnet disposed at the front end of the main shell and a second strong magnet disposed at the contact head assembly. The first strong magnet and the second strong magnet have opposite magnetic properties to achieve adsorption connection. The surface of the main body shell is provided with a silicone anti-slip texture, and a conductive shielding layer is embedded inside the silicone anti-slip texture; the contact head assembly is rotatably disposed relative to the main body shell, and the contact head assembly adopts a modular design. The modular design of the contact head assembly includes different wavelength light heads and customized electrode heads. A modular interface is provided at the connection between the main body shell and the contact head assembly. The modular interface is used to realize the electrical connection between the circuit inside the main body shell and the contact head assembly.

2. The modular system of waterproof beauty device based on magnetic connection and anti-slip design according to claim 1, characterized in that, The contact head assembly includes a sapphire glass contact head, which adopts a 2.5D glass design and incorporates a chamfered structure. The sapphire glass contact head is equipped with an EMS electrode, which is fabricated using a screen printing process and is flush with the surface of the sapphire glass. The VCSEL laser emission position is positioned to avoid the EMS electrode. The main body shell is equipped with a Type-C interface, and a silicone gasket is used to seal the Type-C interface.

3. The modular system of waterproof beauty device based on magnetic connection and anti-slip design according to claim 1, characterized in that, The motherboard PCB is equipped with a temperature intelligent control module, which is configured as follows: Real-time monitoring of the surface temperature data of the contact head assembly; The surface temperature data is compared with a preset safe temperature threshold. When the temperature exceeds the threshold, the power supply to the contact head assembly is automatically cut off. Continuously monitor temperature changes, and restore power supply to the contact head assembly when the temperature drops to a safe threshold range.

4. The modular waterproof beauty device system based on magnetic connection and anti-slip design according to claim 1, characterized in that, The motherboard PCB integrates a skin condition intelligent analysis unit, which is configured as follows: A low-voltage detection signal is sent to the electrode head of the contact head assembly via a modular interface; Receive the skin impedance feedback signal returned by the electrode head; The skin impedance signal is analyzed to calculate the skin moisture content or sebum secretion parameters; Based on the calculated parameters, corresponding skin care suggestions will be output.

5. The modular system of waterproof beauty device based on magnetic connection and anti-slip design according to claim 1, characterized in that, The motherboard PCB is equipped with a lighting mode adaptive module, which is configured as follows: Acquire skin type information input by the user or skin condition parameters detected by the contact head assembly; skin type information includes dry, oily, or sensitive. The skin information is matched with a light pattern database using a preset machine learning algorithm to determine the optimal wavelength and power parameters; The light source in the control contact head assembly outputs light according to the matched parameters.

6. The modular waterproof beauty device system based on magnetic connection and anti-slip design according to claim 1, characterized in that, A magnetic connection status detection module is provided at the front end of the main body shell, and the magnetic connection status detection module is configured as follows: Real-time monitoring of the relative position signal between the first and second powerful magnets; The position signal is compared with a preset stable connection threshold to determine whether the contact head assembly is in a loose state. When a loose connection is detected, the system will send an unstable connection alert to the user via an indicator light on the main casing or by vibration.

7. The modular system of waterproof beauty device based on magnetic connection and anti-slip design according to claim 1, characterized in that, The conductive shielding layer inside the silicone anti-slip texture also functions as a grip state detection sensor, and the conductive shielding layer is configured as follows: Detects the force distribution of the user's grip on the main body shell and the signal of the finger contact position; The stability of the user's grip is determined based on the force and position signals. When the system is determined to be unstable, it automatically reduces the output power of the contact head assembly and provides feedback on the grip status through vibration.

8. The modular system of waterproof beauty device based on magnetic connection and anti-slip design according to claim 1, characterized in that, The modular interface is provided with a contact head authorization management unit, which is configured as follows: Read the electronic identification information on the contact head assembly; The electronic identification information is compared with a preset list of original authorized products to verify the legality of the contact head; When a non-original contact head is verified, its use of advanced functions is restricted, and the user is prompted to use the original component.

9. The modular system of waterproof beauty device based on magnetic connection and anti-slip design according to claim 1, characterized in that, The motherboard PCB integrates a usage scenario intelligent switching module, which is configured as follows: Detects the current ambient temperature, humidity, or water contact signal; The user's usage scenario is determined based on the environmental signals. Automatically switch the device to the corresponding operating mode for the scenario.

10. The modular system of waterproof beauty device based on magnetic connection and anti-slip design according to claim 1, characterized in that, The motherboard PCB is equipped with a fault intelligent diagnosis and repair module, which is configured as follows: Real-time collection of operating data from each module of the equipment; operating data includes current, voltage, and contact connection status; Anomaly detection is performed on the operational data to identify fault characteristics; Diagnose the fault type based on the fault characteristics; the fault type includes at least a short circuit in the contact assembly or an over-discharge of the battery. Perform automatic repair operations and generate and display fault information and solutions.

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