Controller, cosmetic mask, mask-type cosmetic device, and control method thereof

Abstract

The application discloses a controller, a beauty mask, a mask-type beauty instrument and a control method thereof, wherein the controller comprises a signal interface and a control unit, the signal interface is adapted to be connected with a charging device in a charging mode, and the signal interface is connected with electrodes of the beauty mask; the control unit is connected with the signal interface, and the control unit is used for configuring the signal interface to enter a charging state in the charging mode, so as to transmit electric energy to the controller through the signal interface, or the control unit is used for configuring the signal interface to enter a driving state in a mask driving mode, so as to transmit a driving signal to the beauty mask through the signal interface. The controller of the application integrates the charging function and the mask driving function in the same signal interface, realizes the interface multiplexing, simplifies the overall structure, reduces the number of interfaces, improves the product integration and use reliability, and is beneficial to improving the product appearance and sealing performance.

Description

Technical Field

[0001] This invention relates to the field of beauty instrument technology, and in particular to a controller, a beauty mask, a mask-type beauty instrument, and a control method for the mask-type beauty instrument. Background Technology

[0002] In existing technologies, facial mask-style beauty devices often have multiple independent interfaces, one for charging the device and another for transmitting drive signals to the mask. The need for separate interfaces for different functions increases the structural complexity and size of the device, as well as the number of openings in the outer shell, which can negatively impact the overall appearance and sealing performance. Furthermore, the multi-interface structure can cause inconvenience, such as users accidentally plugging or connecting the wrong parts, affecting the normal operation of the device and potentially causing circuit malfunctions. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the first objective of the present invention is to provide a controller that integrates the charging function and the mask driving function into the same signal interface, thereby realizing interface multiplexing, simplifying the overall structure, reducing the number of interfaces, improving product integration and reliability, and also contributing to improving the product's aesthetics and sealing performance.

[0004] The second objective of this invention is to provide a beauty face mask.

[0005] The third objective of this invention is to provide a face mask-type beauty device.

[0006] The fourth objective of this invention is to provide a control method for a mask-type beauty device.

[0007] To achieve the above objectives, a controller according to a first aspect of the present invention includes: a signal interface adapted to be connected to a charging device in a charging mode, the signal interface being connected to the electrodes of a beauty mask; and a control unit connected to the signal interface, the control unit being configured to configure the signal interface to enter a charging state in a charging mode to transmit electrical energy to the controller through the signal interface, or the control unit being configured to configure the signal interface to enter a driving state in a mask driving mode to transmit a driving signal to the beauty mask through the signal interface.

[0008] According to the controller of this invention, by integrating the physical interfaces that originally performed charging and mask driving functions separately into a single signal interface, and configuring this signal interface according to different operating modes, it is used for power transmission in charging mode and for drive signal transmission in mask driving mode. This achieves interface resource reuse at the functional level, avoiding the need to set up independent interfaces for different functions, thereby reducing the number of interfaces. The reduction in the number of interfaces directly reduces the number of external openings and related connection structures of the controller, resulting in a simpler and more compact overall structure, improved product integration, and reduced likelihood of users mis-plugging or incorrectly connecting during connection, thus improving reliability. Simultaneously, the reduction in the number of interfaces also helps to improve the overall integration of the product appearance and reduces potential water ingress channels, thereby improving the product's aesthetics and sealing performance at the structural level.

[0009] In some embodiments, the signal interface includes: a charging pin, which is connected to the charging device in the charging mode to transmit electrical energy to charge the controller; and a drive signal transmission pin, which is connected to the electrodes of the beauty mask in the mask driving mode to transmit a drive signal to the beauty mask.

[0010] In some embodiments, the signal interface further includes: a ground pin, which is configured to form a charging circuit with the charging pin and the charging device in the charging mode for charging; or, the ground pin is configured to connect to the ground electrode of the beauty mask in the mask driving mode as a common reference ground for the beauty mask.

[0011] In some embodiments, the signal interface further includes a charging connection confirmation signal pin, which is connected to a common ground terminal in the controller via a pull-down resistor. The charging connection confirmation signal pin is adapted to connect to the charging device in the charging mode to form a charging connection identification circuit.

[0012] In some embodiments, the controller further includes an interface detection unit connected to the charging connection confirmation signal pin, for detecting the insertion status of the charging device.

[0013] In some embodiments, the charging pin includes a VBUS pin, and the drive signal transmission pin includes a differential signal pin and a SUB pin.

[0014] To achieve the above objectives, a beauty mask according to a second aspect of the present invention includes a mask on which working electrodes are distributed. The working electrodes are used to connect to a signal interface as described in the above embodiment in the mask driving mode to transmit a driving signal.

[0015] According to embodiments of the present invention, the beauty mask, by providing working electrodes on the mask body for connection to a signal interface with a controller, allows the beauty mask to directly receive drive signals from the controller through the same signal interface. This eliminates the need for a separate additional signal interface for the beauty mask, reducing the number of interfaces, making the overall structure simpler and more compact, improving product integration, and reducing the likelihood of users making incorrect connections or misinsertion during the connection process, thereby enhancing reliability. Simultaneously, the reduction in the number of interfaces also helps improve the overall integration of the product's appearance and reduces potential water ingress channels, thus structurally improving the product's aesthetics and sealing performance.

[0016] In some embodiments, the mask is further provided with grounding electrodes, which are connected to the grounding pin of the signal interface to provide a circuit for a single electrode of the mask.

[0017] To achieve the above objectives, a mask-type beauty device according to a third aspect of the present invention includes: a controller as described in the above embodiment; and a beauty mask as described in the above embodiment, wherein, in mask driving mode, the controller is connected to the beauty mask via a signal interface.

[0018] According to an embodiment of the present invention, a mask-type beauty device, by cooperating a controller with interface multiplexing function with a beauty mask equipped with working electrodes, allows the controller to transmit power and output drive signals through the same signal interface in different working modes. The beauty mask receives the drive signals and acts on the user's skin, thereby achieving integrated charging and mask driving functions at the system level. This avoids the need for multiple interfaces and connection structures for different functions in traditional solutions. The reduction in the number of interfaces directly reduces the number of external openings and related connection structures on the controller, resulting in a simpler and more compact overall structure, improved product integration, and reduced likelihood of mis-plugging or incorrect connection during user connection, thus enhancing reliability. Simultaneously, the reduction in the number of interfaces also improves the overall integration of the product's appearance and reduces potential water ingress channels, thereby improving the product's aesthetics and sealing performance at the structural level.

[0019] To achieve the above objectives, a control method for a facial mask beauty device according to a fourth aspect of the present invention is used for the controller or the facial mask beauty device described in the above embodiments. The control method includes: acquiring the working mode of the facial mask beauty device, wherein the working mode includes a charging mode or a mask driving mode; configuring the signal interface of the controller to enter a charging state in the charging mode to transmit electrical energy through the signal interface, or configuring the signal interface to enter a driving state in the mask driving mode to transmit a driving signal to the beauty mask through the signal interface.

[0020] The control method for a facial mask-type beauty device according to an embodiment of the present invention acquires the working mode of the facial mask-type beauty device and performs targeted state configuration of the same signal interface under different working modes. This allows the signal interface to perform power transmission in charging mode and drive signal transmission in mask driving mode, thereby enabling unified scheduling and reuse of interface resources at the control level. This avoids the need for multiple interfaces and connection structures for different functions in traditional solutions. Since this method directly acts on the controller's configuration logic for the signal interface, a single interface can switch functions at different stages, thus reducing the number of physical interfaces. This directly reduces the number of external openings and related connection structures on the controller, making the overall structure simpler and more compact, improving product integration, and reducing the likelihood of users mis-plugging or incorrectly connecting during connection, thereby improving reliability. Simultaneously, the reduction in the number of interfaces also helps improve the product's integrated appearance and reduces potential water ingress channels, thus improving the product's aesthetics and sealing performance at the structural level.

[0021] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a block diagram of a controller according to an embodiment of the present invention; Figure 2 This is a pin diagram of a 16-PIN Type-C interface according to an embodiment of the present invention; Figure 3 This is a schematic diagram of a face mask according to an embodiment of the present invention; Figure 4 This is a block diagram of a mask-type beauty device according to an embodiment of the present invention; Figure 5 This is a flowchart of a control method for a mask-type beauty device according to an embodiment of the present invention.

[0023] Figure label: 100 masks for beauty; Controller 1; Beauty mask 2; Signal interface 11; Control unit 12; Face mask 21; Working electrode 211; first electrode region 212; second electrode region 213; third electrode region 214. Detailed Implementation

[0024] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0025] The following is for reference. Figure 1 A controller according to an embodiment of the present invention is described.

[0026] Figure 1 This is a block diagram of a controller according to an embodiment of the present invention, such as... Figure 1 As shown, controller 1 includes a signal interface 11 and a control unit 12.

[0027] In embodiments of the present invention, the signal interface 11 can be a multi-pin electrical connection interface disposed on the controller 1, used to establish a power transmission path or a signal transmission path between the controller 1 and other devices in different operating modes. The signal interface 11 can be a standard interface or a non-standard interface with multiple functional pins, the essential feature of which is that different pins in the same interface or the same pin in different configuration states can perform different functions, thereby realizing the reuse of interface resources.

[0028] In some embodiments, the signal interface 11 may include, but is not limited to: a portion of a USB (Universal Serial Bus) interface, an interface with reversible insertion characteristics (such as a Type-C interface), or other connection interfaces with multi-pin structures. Preferably, the signal interface 11 is an interface type with a large number of pins and functional multiplexing capabilities, so that while meeting the pin configuration required for charging, at least a portion of unused pins are reserved for transmitting drive signals.

[0029] Therefore, the signal interface 11 should at least meet the following requirements: in charging mode, it has basic power transmission capability; in addition to the pins required for charging, it has a sufficient number of idle pins available for multiplexing; and the idle pins can be configured as drive signal transmission channels in mask driving mode.

[0030] In some embodiments, the signal interface 11 is adapted to connect to a charging device in charging mode, and the signal interface 11 is connected to the electrodes of the beauty mask.

[0031] In some embodiments, the control unit 12 may be a control circuit or control module disposed inside the controller 1, used to configure and switch the operating state of the signal interface 11 and the functions of each pin. The control unit 12 may include a microcontroller (MCU), a dedicated control chip, a logic control circuit, or other programmable control unit.

[0032] In some embodiments, the control unit 12 is connected to the signal interface 11. The control unit 12 is configured to enter the charging state of the signal interface 11 in the charging mode so as to transmit electrical energy to the controller 1 through the signal interface 11. Alternatively, the control unit 12 is configured to enter the driving state of the signal interface 11 in the mask driving mode so as to transmit driving signals to the beauty mask through the signal interface 11.

[0033] In some embodiments, the operating mode of the controller 1 can be determined based on external conditions or user operations, such as entering a charging mode when a charging device is detected to be connected, or entering a mask driving mode when user input (such as a button, touch, or application instruction) is received.

[0034] In some embodiments, the mask driving mode can refer to the state in which the controller 1 outputs driving signals to the electrodes of the beauty mask through the signal interface 11 to realize the working state of electrical stimulation (such as microcurrent stimulation) on the user's skin. In this mode, the signal interface 11 no longer serves as the power input function, but is used to output driving signals to each electrode area of ​​the mask.

[0035] In some embodiments, the driving signal can be an electrical signal used to drive the electrodes of the beauty mask, such as a microcurrent signal, a pulse signal, or other forms of electrical stimulation signal.

[0036] In some embodiments, the driving signal is transmitted to the working electrode of the beauty mask through the pin of the signal interface 11, so that a current circuit is formed between the electrode and the user's skin, thereby stimulating the skin or muscles and achieving beauty effects such as lifting, tightening or massage.

[0037] In some embodiments, transmitting electrical energy to the controller 1 via the signal interface 11 and transmitting drive signals to the beauty mask via the signal interface 11 are mutually exclusive operations, meaning that only one of the functions is executed at the same time.

[0038] Specifically, in charging mode, only the power transmission pins are enabled, while the pins used for outputting drive signals are inactive; in mask driving mode, only the signal output pins are enabled, while the power input path is disconnected. This achieves temporal separation between the charging and driving functions, avoiding mutual interference between different functions and thus improving the product's stability and reliability.

[0039] According to an embodiment of the present invention, the controller 1 integrates the physical interfaces that originally performed charging and mask driving functions into a single signal interface 11. The control unit 12 configures this signal interface 11 according to different operating modes, enabling it to be used for power transmission in charging mode and for drive signal transmission in mask driving mode. This achieves interface resource reuse at the functional level, avoiding the need for separate interfaces for different functions and thus reducing the number of interfaces. The reduction in the number of interfaces directly reduces the number of external openings and related connection structures in the controller 1, resulting in a simpler and more compact overall structure, improved product integration, and reduced likelihood of mis-plugging or incorrect connection during user connection, thereby enhancing reliability. Simultaneously, the reduction in the number of interfaces also improves the overall integration of the product's appearance and reduces potential water ingress channels, thus improving the product's aesthetics and sealing performance at the structural level.

[0040] In some embodiments, the signal interface 11 includes a charging pin and a drive signal transmission pin. The charging pin is connected to a charging device in charging mode to transmit electrical energy to charge the controller 1; the drive signal transmission pin is connected to the electrodes of the beauty mask in mask driving mode to transmit drive signals to the beauty mask.

[0041] In some embodiments, the charging pin can be a type of pin disposed in the signal interface 11 for establishing a power transmission path. In charging mode, it is used to connect to the power output terminal of the charging device, thereby introducing external electrical energy into the controller 1. The charging pin may include a pin for transmitting the positive terminal of the power supply and a ground pin that cooperates to form a loop. The positive terminal of the power supply is used to input DC voltage, and the ground pin is used to provide a current return path, thereby together forming a complete power supply loop.

[0042] In some embodiments, charging pins are not limited to the naming conventions of specific standard interfaces, but are defined by function. That is, any interface pin used for power input and return in charging mode can be classified as a charging pin. Therefore, a charging pin may include one or more pins, the specific number and form of which can be configured according to the interface type.

[0043] In some embodiments, the signal interface 11 can be used to input electrical energy from an external power source into the power management circuit inside the controller 1, and further provide power to the energy storage unit inside the controller 1. The energy storage unit can be a rechargeable battery (e.g., a lithium battery) or an equivalent energy storage device installed inside the controller 1, used to provide operating power to the controller 1 when it is disconnected from an external power source.

[0044] In some embodiments, the power management circuit may include a charging circuit or a charging chip for managing the input electrical energy, such as voltage regulation, current control, and charging control of the energy storage unit (e.g., stopping charging when fully charged). Therefore, it can be understood that the electrical energy transmitted through the charging pin first enters the power management circuit inside the controller 1, and then the power management circuit charges the energy storage unit.

[0045] In some embodiments, the drive signal transmission pin can be a type of pin provided in the signal interface 11 for outputting drive signals in the mask driving mode, for establishing a signal transmission path between the controller 1 and the beauty mask electrode in the mask driving mode.

[0046] In some embodiments, drive signal transmission pins are not limited to the fixed definitions in a specific interface standard, but are defined by function. That is, any pin configured to output drive signals in mask driving mode falls under the category of drive signal transmission pins. Therefore, drive signal transmission pins may include one or more pins, the specific number and form of which can be configured according to the interface type.

[0047] In some embodiments, the drive signal transmission pins can be multiplexed from differential signal pins originally used for high-speed data communication or other functions. That is, through the configuration of the control unit 12, these pins are redefined as drive signal output terminals in mask driving mode, thereby realizing the multiplexing of interface pin resources.

[0048] In some embodiments, the drive signal transmission pin is able to transmit the drive signal to the beauty mask because, in the mask driving mode, the control unit 12 configures the pin function of the signal interface 11 so that the output terminal of the drive circuit inside the controller 1 is electrically connected to the drive signal transmission pin.

[0049] Specifically, the controller 1 is equipped with a drive circuit for generating drive signals. When the beauty mask is in the mask drive mode, the control unit 12 controls the drive circuit to output the drive signal through the corresponding drive signal transmission pin and transmits it to the electrodes of the beauty mask through the signal interface 11, thereby forming an electrical signal action path between the electrodes to stimulate the user's skin or muscles.

[0050] In some embodiments, since the drive signal transmission pins are connected one-to-one or in partitions to the electrodes of the beauty mask, the drive signal can be effectively transmitted to the designated electrode area, thereby realizing drive control of different areas of the beauty mask.

[0051] In some embodiments, the signal interface 11 further includes a ground pin. The ground pin can be a type of pin disposed in the signal interface 11 used to provide a potential reference and a current return path. The ground pin is not limited to a fixed naming convention in a specific interface standard, but is defined by its function; that is, any interface pin used to provide a return path or reference potential falls under the category of ground pins. Therefore, a ground pin can include one or more pins, and their specific number and distribution can be configured according to the interface structure.

[0052] In some embodiments, the ground pin is used to form a charging circuit with the charging pin and the charging device in the charging mode for charging, or the ground pin is used to connect to the ground electrode of the beauty mask in the mask driving mode as a common reference ground for the beauty mask.

[0053] Specifically, the grounding pin can have multifunctional attributes, that is, it plays different but related roles in different operating modes. In charging mode, the grounding pin, the charging pin, and the charging device together form the return path in the power circuit, so that the current can enter the controller 1 from the charging device through the charging pin, and then return to the charging device through the grounding pin, thereby forming a complete closed loop to achieve charging. In the mask driving mode, the grounding pin no longer only serves as a power return path, but is electrically connected to the grounding electrode on the beauty mask to provide a reference potential for the driving signal and participate in the formation of the current loop of the driving signal.

[0054] In some embodiments, the signal interface 11 further includes a charging connection confirmation signal pin. This charging connection confirmation signal pin can be a functional pin located in the signal interface 11 used to detect whether a charging device is connected and to assist in interface identification. Its essential function is to participate in building the charging connection identification circuit and provide interface connection status information to the controller 1.

[0055] In some embodiments, the charging connection confirmation signal pin can correspond to an identification pin in a specific interface standard. For example, in a Type-C interface, the charging connection confirmation signal pin can be a configuration channel pin (such as a CC-class pin) used to form an electrical connection with the charging device and achieve connection identification. It should be noted that while a CC-class pin can be used as a specific implementation of the charging connection confirmation signal pin in this invention, this invention is not limited to this specific name or interface standard, but rather abstracts and defines it based on its function. Any pin that can perform connection detection can be used as a charging connection confirmation signal pin.

[0056] In some embodiments, the charging connection confirmation signal pin is connected to a common ground terminal within the controller 1 via a pull-down resistor. The charging connection confirmation signal pin is adapted to connect to the charging device in charging mode to form a charging connection identification circuit.

[0057] In some embodiments, a pull-down resistor may refer to a resistor element connected between the charging connection confirmation signal pin and the common ground terminal within the controller 1. Its function is to provide a stable preset potential (e.g., a low potential) to the charging connection confirmation signal pin when no charging device is connected, thereby serving as a reference for status judgment.

[0058] In some embodiments, when a charging device is connected, the charging connection confirmation signal pin establishes an electrical connection with the pull-up circuit inside the charging device through the signal interface 11, thereby forming a voltage divider network with the pull-down resistor, causing the voltage of the charging connection confirmation signal pin to change, which is then identified by the interface detection unit.

[0059] In some embodiments, the value of the pull-down resistor can be set according to interface specifications or circuit design requirements. For example, a resistance value in the range of approximately 5kΩ (kiloohms) can be selected to form a stable voltage divider range, thereby facilitating the identification of different connection states. It should be noted that this resistance value is not a fixed value and can be configured according to the specific design.

[0060] In some embodiments, the controller 1 further includes an interface detection unit, which may be a detection module disposed inside the controller 1, used to sample and judge the electrical state of the charging connection confirmation signal pin, thereby identifying the connection status of the charging device.

[0061] In some embodiments, the interface detection unit is connected to the charging connection confirmation signal pin to detect the insertion status of the charging device.

[0062] In some embodiments, the interface detection unit may be implemented as part of the control unit 12 or may exist as an independent hardware module; the present invention does not limit this.

[0063] In some embodiments, when the signal interface 11 is not connected to a charging device, the charging connection confirmation signal pin is connected to the common ground terminal in the controller 1 through a pull-down resistor, thereby being in a preset potential state. When the charging device is connected through the signal interface 11, the charging connection confirmation signal pin establishes a connection with the circuit of the charging device. During this process, the pull-up circuit of the charging device and the pull-down resistor of the controller 1 form a voltage divider relationship, causing the voltage of the charging connection confirmation signal pin to change. The interface detection unit detects this voltage change and determines that the charging device has been inserted based on the voltage change, and feeds back the detection result to the control unit 12. The control unit 12 then configures the operating mode of the controller 1 to the charging mode and controls the signal interface 11 to enter the charging state, so that the charging pin establishes a power transmission path with the charging device, thereby providing power to the controller 1 through the signal interface 11, and the charging circuit inside the controller 1 charges its energy storage unit. At the same time, the charging circuit can also detect the input voltage and the status of the energy storage unit to realize the control and management of the charging process.

[0064] In some embodiments, the charging pin includes a VBUS pin, and the drive signal transmission pin includes a differential signal pin and a SUB pin.

[0065] In some embodiments, the VBUS pin can be a type of charging pin in signal interface 11 used for inputting power supply voltage. Its essential function is to act as a power input channel in charging mode, introducing DC power provided by the charging device into the controller 1. Specifically, the VBUS pin can carry the positive DC power supply voltage from the charging device and, together with the ground pin, form a power transmission path to supply power to the controller 1. It should be noted that the VBUS pin is not limited to the naming convention in a specific interface standard, but is limited by its power input function. That is, any pin that performs the function of power supply voltage input in charging mode can be classified as a VBUS pin. Therefore, the VBUS pin can include one or more pins, and their specific number and connection method can be configured according to the interface structure.

[0066] In some embodiments, the differential signal pins can be a type of paired signal pin in the signal interface 11, which is used for data communication in conventional applications. However, in this invention, in the mask driving mode, the differential signal pins are configured as drive signal transmission pins to output drive signals to the electrodes of the beauty mask. The differential signal pins can exist in pairs, serving as the positive and negative output terminals of the drive signal, respectively, thereby forming a current path between the corresponding electrodes to achieve electrical stimulation of the user's skin.

[0067] In some embodiments, the differential signal pins may correspond to data communication pins (e.g., a pair of positive and negative signal pins) in a specific interface, but the present invention does not limit its specific name or interface standard, but rather limits it by its functional feature of having the ability to transmit signals in pairs.

[0068] In some embodiments, the SUB pin can be an auxiliary signal pin provided in the signal interface 11, used as an additional drive signal transmission channel in the mask driving mode, and used in conjunction with the differential signal pin to expand the number of output paths of the drive signal, thereby supporting the partitioned driving of multiple electrode areas of the beauty mask.

[0069] In general, the various pins in the signal interface 11 have different functional configurations in different operating modes: in charging mode, the VBUS pin and the ground pin form a power transmission channel, while the differential signal pin and the SUB pin are in a non-working state; in mask driving mode, the differential signal pin and the SUB pin are configured as drive signal transmission pins to output drive signals to the electrodes of the beauty mask, while the power input channel corresponding to the VBUS pin is turned off, thereby realizing the multiplexing of the power transmission function and the drive signal transmission function on the same signal interface 11 and isolating them from each other in time to avoid mutual interference between different functions.

[0070] In some embodiments, taking a 16-PIN Type-C interface as an example, such as Figure 2 As shown, in charging mode, the charging pins in signal interface 11 are used to form a power transmission channel. These charging pins include a VBUS pin for inputting the power supply voltage and a ground pin (GND pin) for forming a return path. Specifically, the VBUS pin corresponds to pins A4, A9, B4, and B9 in the interface, used to receive the positive DC power voltage provided by the external charging device; the ground pin corresponds to pins A1, A12, B1, and B12 in the interface, used as the power return ground, thus forming a complete power supply loop together with the VBUS pin. Furthermore, signal interface 11 also includes a charging connection confirmation signal pin, which corresponds to pins CC1 and CC2 in the interface and is connected to the common ground terminal inside controller 1 via a pull-down resistor. When a charging device is connected, the charging connection confirmation signal pin forms a voltage divider relationship with the charging device's side circuit, causing a change in the pin level. The interface detection unit in controller 1 identifies the charging device connection status based on this level change and configures controller 1 into charging mode accordingly, thereby establishing a power transmission path on the charging pins and supplying power to controller 1.

[0071] In some embodiments, such as Figure 2As shown, in mask driving mode, the drive signal transmission pin in signal interface 11 is configured as a micro-current signal output channel, while the ground pin continues to be used as a common reference ground for the beauty mask. Specifically, the drive signal transmission pin can be replaced by the differential signal pin originally used for data communication and the SUB pin (such as...). Figure 2 The SUB1 and SUB2 pins are multiplexed together, where the differential signal pins correspond to pins A6 and B6 (i.e., D+ pins) and pins A7 and B7 (i.e., D- pins) in the interface, and the SUB pins correspond to pins A8 and B8 in the interface. In this mode, the differential signal pins and SUB pins are configured as drive signal output terminals for different zones. For example, pins A6 and B6 can be used as the positive and negative output terminals (EMS1+, EMS1-) of the first zone, pins A7 and B7 can be used as the positive and negative output terminals (EMS2+, EMS2-) of the second zone, and pins A8 and B8 can be used as the positive and negative output terminals (EMS3+, EMS3-) of the third zone, thereby realizing zoned driving of different electrode areas of the beauty mask. Since the drive signal transmission pin and the charging pin are functionally independent and are switched between different working modes, the power transmission channel is closed in the mask drive mode, thus avoiding the influence of the charging process on the micro-current signal output. At the same time, since the pins of the TYPE-C interface have a centrally symmetrical structure, and EMS+ and EMS- are relative and not affected by the insertion direction, the output will not be affected by the correct or reverse connection.

[0072] This invention also proposes a beauty mask, which includes a mask structure. The mask can be a carrier structure for conforming to the user's face. The mask can be made of flexible or semi-flexible materials to adapt to different facial contours, improving fit and comfort. Its structure can cover part or all of the face, such as the cheek area, forehead area, and jaw area. The main functions of the mask are: firstly, to serve as a structure for mounting and fixing electrodes; and secondly, to serve as a physical carrier for transmitting drive signals to the body, enabling the drive signals output by the controller 1 to act on the target area through the electrodes.

[0073] Figure 3 This is a schematic diagram of a face mask according to an embodiment of the present invention, as shown below. Figure 3 As shown, working electrodes 211 are distributed on the mask 21. The working electrodes 211 are used to connect to the signal interface 11 as described in the above embodiment to transmit driving signals in the mask driving mode.

[0074] In some embodiments, a plurality of working electrodes 211 are distributed on the mask 21. The working electrodes 211 can be configured in multiple ways as needed and can be distributed according to a preset area. For example, the working electrodes 211 can be divided into multiple electrode zones to correspond to different facial areas, thereby realizing zoned drive control.

[0075] For example, such as Figure 3 As shown, the multiple working electrodes 211 can be divided into three electrode regions, corresponding to the first electrode region 212 (e.g., the forehead region), the second electrode region 213 (e.g., the cheek region), and the third electrode region 214 (e.g., the jawline region). Each electrode region can correspond to different drive signal channels output by the controller 1, such as different drive signal output terminals (e.g., EMS1, EMS2, EMS3), thereby achieving independent or combined control of different facial regions. It should be noted that the number of electrodes and the partitioning method can be adjusted according to actual needs and are not limited to a specific number or partitioning form.

[0076] According to an embodiment of the present invention, the beauty mask, by providing a working electrode 211 on the mask body for connection with the signal interface 11 of the controller 1, allows the beauty mask to directly receive drive signals from the controller 1 through the same signal interface 11. This eliminates the need for a separate additional signal interface 11 for the beauty mask, reducing the number of interfaces, making the overall structure simpler and more compact, improving product integration, and reducing the likelihood of users making incorrect connections or misinsertion during the connection process, thereby improving reliability. Simultaneously, the reduction in the number of interfaces also helps improve the overall integration of the product's appearance and reduces potential water ingress channels, thus structurally improving the product's aesthetics and sealing performance.

[0077] In some embodiments, the face mask 21 is also provided with grounding electrodes, which are connected to the grounding pin of the signal interface 11 to provide a circuit for the single electrode of the face mask 21.

[0078] Specifically, in existing facial mask-type beauty devices, the drive signal relies on a closed loop formed between paired working electrodes 211. When one working electrode 211 makes poor contact with the user's skin, the current loop is easily interrupted, causing the controller 1 to stop outputting the drive signal, affecting the effectiveness and stability of the device. However, by setting a ground electrode on the mask 21 and connecting the ground electrode to the ground pin of the signal interface 11, an additional return path can be provided outside the original working electrode loop. This allows the current loop to be maintained even when some working electrodes 211 make poor contact, improving the system's fault tolerance and operational stability.

[0079] In some embodiments, the loop path of the drive signal in single-electrode operation can be understood as follows: the controller 1 outputs a drive signal through the drive signal transmission pin of the signal interface 11, which is transmitted to a working electrode 211 on the mask 21 via the signal interface 11. When the working electrode 211 contacts the user's skin, the drive signal diffuses through the user's skin and is conducted to the ground electrode in the adjacent area. Subsequently, it is transmitted through the ground electrode to the ground pin of the signal interface 11 and returns to the ground terminal inside the controller 1, thereby forming a closed current loop. This constitutes a current path of "drive signal transmission pin—working electrode—user skin—ground electrode—ground pin", which enables the effective function of the drive signal even when the paired electrode is not involved or has poor contact.

[0080] The following is for reference. Figure 4 A mask-type beauty device according to an embodiment of the present invention is described.

[0081] Figure 4 This is a block diagram of a mask-type beauty device according to an embodiment of the present invention, such as... Figure 4 As shown, the mask-type beauty device 100 includes: a controller 1 as described in the above embodiment and a beauty mask 2 as described in the above embodiment.

[0082] In some embodiments, in mask driving mode, controller 1 is connected to beauty mask 2 via signal interface 11.

[0083] According to an embodiment of the present invention, the mask-type beauty device 100, by cooperating a controller 1 with interface multiplexing function and a beauty mask 2 equipped with working electrodes 211, allows the controller 1 to transmit power and output drive signals through the same signal interface 11 in different working modes. The beauty mask 2 receives the drive signals and applies them to the user's skin. This achieves integrated charging and mask driving functions at the system level, avoiding the need for multiple interfaces and connection structures for different functions in traditional solutions. The reduction in the number of interfaces directly reduces the number of external openings and related connection structures of the controller 1, resulting in a simpler and more compact overall structure, improved product integration, and reduced likelihood of mis-plugging or incorrect connection during user connection, thereby enhancing reliability. Simultaneously, the reduction in the number of interfaces also improves the overall integration of the product's appearance and reduces potential water ingress channels, thus improving the product's aesthetics and sealing performance at the structural level.

[0084] The following is for reference. Figure 5 A control method for a facial mask-type beauty device according to an embodiment of the present invention is described. This method is used with the controller described in the above embodiment or the facial mask-type beauty device described in the above embodiment. Figure 5This is a flowchart of a control method for a mask-type beauty device according to an embodiment of the present invention, such as... Figure 5 As shown, the vehicle control method of this invention includes at least the following steps: S1, obtain the working mode of the mask-type beauty device, including charging mode or mask driving mode.

[0085] In some embodiments, the controller's operating mode can be determined based on external conditions or user operations, such as entering a charging mode when a charging device is detected, or entering a mask driving mode when user input (such as button press, touch, or application command) is received.

[0086] In some embodiments, the mask driving mode can refer to a working state in which the controller outputs driving signals to the electrodes of the beauty mask through a signal interface to achieve electrical stimulation (such as microcurrent stimulation) of the user's skin. In this mode, the signal interface no longer serves as a power input function, but is used to output driving signals to each electrode area of ​​the mask.

[0087] S2, in charging mode, configures the controller's signal interface to enter charging state to transmit electrical energy through the signal interface; or, in mask driving mode, configures the signal interface to enter driving state to transmit driving signals to the beauty mask through the signal interface.

[0088] In some embodiments, the signal interface may include, but is not limited to: some USB (Universal Serial Bus) interfaces, interfaces with reversible plug characteristics (such as Type-C interfaces), or other connection interfaces with multi-pin structures.

[0089] In some embodiments, the signal interface should at least meet the following requirements: in charging mode, it has basic power transmission capability; in addition to the pins required for charging, it has a sufficient number of idle pins available for multiplexing; and the idle pins can be configured as drive signal transmission channels in mask driving mode.

[0090] The control method for a facial mask-type beauty device according to an embodiment of the present invention acquires the working mode of the facial mask-type beauty device and performs targeted state configuration of the same signal interface under different working modes. This allows the signal interface to perform power transmission in charging mode and drive signal transmission in mask driving mode, thereby enabling unified scheduling and reuse of interface resources at the control level. This avoids the need for multiple interfaces and connection structures for different functions in traditional solutions. Since this method directly acts on the controller's configuration logic for the signal interface, a single interface can switch functions at different stages, thus reducing the number of physical interfaces. This directly reduces the number of external openings and related connection structures on the controller, making the overall structure simpler and more compact, improving product integration, and reducing the likelihood of users mis-plugging or incorrectly connecting during connection, thereby improving reliability. Simultaneously, the reduction in the number of interfaces also helps improve the product's integrated appearance and reduces potential water ingress channels, thus improving the product's aesthetics and sealing performance at the structural level.

[0091] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0092] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A controller, characterized in that, include: A signal interface, which is adapted to connect to a charging device in charging mode, and the signal interface is connected to the electrodes of the beauty mask; The control unit is connected to the signal interface. The control unit is configured to enter the charging state of the signal interface in the charging mode so as to transmit electrical energy to the controller through the signal interface. Alternatively, the control unit is configured to enter the driving state of the signal interface in the mask driving mode so as to transmit driving signals to the beauty mask through the signal interface.

2. The controller according to claim 1, characterized in that, The signal interface includes: A charging pin, which is connected to the charging device in the charging mode to transmit electrical energy to charge the controller; A drive signal transmission pin is provided, which is connected to the electrodes of the beauty mask in the mask driving mode to transmit a drive signal to the beauty mask.

3. The controller according to claim 2, characterized in that, The signal interface also includes: A grounding pin is used to form a charging circuit with the charging pin and the charging device in the charging mode for charging, or the grounding pin is used to connect to the grounding electrode of the beauty mask in the mask driving mode to serve as a common reference ground for the beauty mask.

4. The controller according to claim 2, characterized in that, The signal interface also includes: A charging connection confirmation signal pin is provided, which is connected to the common ground terminal in the controller via a pull-down resistor. The charging connection confirmation signal pin is adapted to connect to the charging device in the charging mode to form a charging connection identification circuit.

5. The controller according to claim 4, characterized in that, The controller also includes: An interface detection unit is connected to the charging connection confirmation signal pin and is used to detect the insertion status of the charging device.

6. The controller according to claim 2, characterized in that, The charging pin includes a VBUS pin, and the drive signal transmission pin includes a differential signal pin and a SUB pin.

7. A beauty mask, characterized in that, The device includes a face mask with working electrodes distributed thereon, the working electrodes being used to connect to a signal interface as described in any one of claims 1-6 in the face mask driving mode to transmit a driving signal.

8. The beauty mask according to claim 7, characterized in that, The mask is also equipped with grounding electrodes, which are connected to the grounding pin of the signal interface to provide a circuit for the single electrode of the mask.

9. A face mask-type beauty device, characterized in that, include: The controller as described in any one of claims 1-6; In the beauty mask as described in claim 7 or 8, in the mask driving mode, the controller is connected to the beauty mask via a signal interface.

10. A control method for a mask-type beauty device, characterized in that, For the controller according to any one of claims 1-6 or the facial mask beauty device according to claim 9, the control method includes: The working mode of the mask-type beauty device is obtained, wherein the working mode includes a charging mode or a mask driving mode; In the charging mode, the controller's signal interface is configured to enter the charging state to transmit electrical energy through the signal interface; or, in the mask driving mode, the signal interface is configured to enter the driving state to transmit driving signals to the beauty mask through the signal interface.

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