Micro-current output device of a beauty instrument and beauty instrument

Abstract

This utility model relates to the field of beauty device technology, and discloses a microcurrent output device for a beauty device and the beauty device itself. The microcurrent output device includes: a control circuit for generating control signals to control the output of a microcurrent waveform; a boost circuit, with its input terminal connected to the power supply and the control circuit, for controlled boosting of the power supply voltage to a target value; a waveform generation circuit, electrically connected to the output terminal of the boost circuit and the control circuit respectively, for receiving control signals to output at least a first waveform and a second waveform; and a switching circuit, electrically connected to the waveform generation circuit, for controlling the waveform generation circuit to switch between outputting the first waveform and the second waveform according to the control signals; the first waveform is an AC waveform, and the second waveform is a DC waveform. This utility model can achieve switching output of AC and DC waveforms, meeting the beauty needs of different scenarios and effectively improving the user experience.

Description

Technical Field

[0001] This utility model relates to the field of beauty instrument technology, and in particular to a microcurrent output device for a beauty instrument and a beauty instrument. Background Technology

[0002] Most existing serum beauty devices use a single-frequency microcurrent, which cannot simultaneously output multiple waveforms. Even those devices on the market that attempt to integrate multiple modes suffer from complex circuit designs, interference between modes, and reliance on manual switching, resulting in a poor user experience.

[0003] Therefore, improvements to existing technologies are necessary. Utility Model Content

[0004] This invention provides a microcurrent output device for a beauty instrument and a beauty instrument in order to solve the problems existing in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A microcurrent output device for a beauty instrument, comprising:

[0007] The control circuit is configured to generate a control signal to control the micro-current waveform output.

[0008] A boost circuit, wherein the input terminal of the boost circuit is connected to the power supply and the control circuit, and is used to controllably boost the power supply voltage to a target value;

[0009] A waveform generation circuit is electrically connected to the output terminal of the boost circuit and the control circuit, respectively, and is used to receive the control signal to output at least a first waveform and a second waveform.

[0010] A switching circuit, electrically connected to the waveform generation circuit, is used to control the waveform generation circuit to switch between outputting a first waveform and a second waveform according to the control signal.

[0011] The first waveform is an AC waveform, and the second waveform is a DC waveform.

[0012] Optionally, the control signal includes a waveform parameter configuration signal and a waveform switching control signal;

[0013] The control circuit includes:

[0014] The control circuit is configured to generate the waveform parameter configuration signal, control the output voltage of the boost circuit, and generate the waveform switching control signal.

[0015] The switching circuit includes a switching chip, which is configured to generate a first driving signal corresponding to the first waveform and a second driving signal corresponding to the second waveform based on the waveform parameter configuration signal and the waveform switching control signal; the first driving signal and the second driving signal are used to drive the waveform generation circuit to switch the output of the first waveform and the second waveform.

[0016] The first waveform includes at least two AC waveforms with different frequencies.

[0017] Optionally, the beauty device includes a first electrode group and a second electrode group;

[0018] The waveform generation circuit is connected to the output terminal of the boost circuit and the first electrode group, respectively.

[0019] The switching circuit includes a waveform switching circuit and a switching circuit. The waveform switching circuit is connected to the waveform generation circuit, and the switching circuit is electrically connected to the second electrode group.

[0020] When the waveform generation circuit is switched to output the first waveform, the first electrode group outputs the first waveform to human skin;

[0021] When the waveform generation circuit is switched to output the second waveform, the second waveform is output to human skin through the first electrode group and the second electrode group.

[0022] Optionally, the waveform generation circuit includes two sets of symmetrical switching transistor pairs, and the control circuit controls the switching transistor pairs to turn on and off by outputting the control signal to generate a symmetrical square wave.

[0023] This utility model also provides a beauty device, including the microcurrent output device as described in any of the preceding claims.

[0024] Optionally, the beauty device further includes a main unit, an infusion head, a first electrode group, and a second electrode group, wherein the first electrode group and the second electrode group are disposed on the infusion head; or, the first electrode group is disposed on the infusion head, and the second electrode group is disposed on the main unit.

[0025] Optionally, the inlet head is detachably connected to the host, the inlet head is provided with a first conductive electrode, the host is provided with a second conductive electrode, and the host is electrically connected to the first conductive electrode through the second conductive electrode.

[0026] Optionally, the beauty device also includes an infusion head detection circuit;

[0027] The inlet head detection circuit is electrically connected to the control circuit and is used to detect whether the inlet head is connected to the host.

[0028] Optionally, the microcurrent output device includes the waveform generation circuit, and the inlet head detection circuit is connected to the output terminal of the waveform generation circuit to detect changes in load current and provide a feedback signal to the control circuit to determine whether the inlet head is connected.

[0029] Optionally, the inlet head detection circuit includes:

[0030] The voltage divider resistor circuit is used to generate a voltage change and produce a voltage change signal when the inlet head is connected to the host.

[0031] A threshold comparison circuit is used to be triggered by the voltage change signal and to output a signal to the embedded chip when the voltage changes to a level higher than a preset threshold, so that the embedded chip controls the micro-current waveform output.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] This utility model provides a microcurrent output device for a beauty instrument and a beauty instrument in which, through the coordinated design of a control circuit, a boost circuit, a waveform generation circuit, and a switch switching circuit, the device can switch between AC and DC waveforms to meet the beauty needs of different scenarios and effectively improve the user experience.

[0034] This invention has other features and advantages that will be apparent from or will be set forth in detail in the accompanying drawings and the following detailed description, which together serve to explain the particular principles of this invention. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the microcurrent output device of a beauty instrument provided in an embodiment of the present invention;

[0037] Figure 2 This is a circuit diagram of a boost circuit in a microcurrent output device of a beauty instrument provided in this embodiment of the present invention;

[0038] Figure 3This is a circuit diagram of the waveform generation circuit in the microcurrent output device of a beauty instrument provided in this embodiment of the utility model;

[0039] Figure 4 This is a circuit diagram of the switch switching circuit in the microcurrent output device of a beauty instrument provided in this embodiment of the utility model;

[0040] Figure 5 This is a circuit diagram of an optocoupler switch in a microcurrent output device of a beauty instrument provided in this embodiment of the present invention;

[0041] Figure 6 This is a schematic diagram illustrating the structure of a beauty device provided in an embodiment of this utility model;

[0042] Figure 7 This is another schematic diagram of the structure of a beauty device provided in this embodiment of the present utility model;

[0043] Figure 8 This is an internal circuit diagram of the infusion head in a beauty device provided by an embodiment of this utility model;

[0044] Figure 9 This is a front and back view of the infusion head in a beauty device provided by an embodiment of the present invention, wherein... Figure 9 (a) in the image shows the front view of the import head. Figure 9 (b) in the image shows the back side of the inlet head;

[0045] Figure 10 This is a schematic diagram of the architecture of a conceptual beauty device provided in an embodiment of this utility model.

[0046] Reference numerals: 10, Microcurrent output device; 11, Control circuit; 1121, Embedded chip; 12, Boost circuit; 13, Waveform generation circuit; 14, Switching circuit; 141, Switching chip; 20, Inlet head; 21, Inlet head detection circuit; IONT1 / IONT2, Spring pin; 30, Handle; 41, Embedded power supply. Detailed Implementation

[0047] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0048] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0049] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0050] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0051] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0052] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0053] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0054] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0055] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0056] Please refer to Figure 1 Figure 1 is a schematic diagram of the microcurrent output device 10 of a beauty instrument according to an embodiment of the present invention.

[0057] This utility model embodiment provides a microcurrent output device 10 for a beauty instrument. The microcurrent output device 10 is integrated into the beauty instrument, specifically into the main unit of the beauty instrument, and includes a control circuit 11, a boost circuit 12, a waveform generation circuit 13, and a switch switching circuit 14.

[0058] Specifically, the control circuit 11 is configured to generate a control signal to control the microcurrent waveform output.

[0059] By integrating the control circuit 11, boost circuit 12, waveform generation circuit 13, and switching circuit 14 into the microcurrent output device, the application requirements of different electrical stimulation modes during the beauty process can be met, effectively improving the system integration and functional flexibility.

[0060] In some embodiments, the control signal includes a waveform parameter configuration signal and a waveform switching control signal.

[0061] Furthermore, the control circuit 11 is a microcontroller unit (MCU).

[0062] The control circuit 11 is configured to generate a waveform parameter configuration signal, which includes data such as frequency, duty cycle, and waveform amplitude. In some embodiments, the output voltage of the boost circuit 12 can be adjusted according to the power level of the beauty device, and a waveform switching control signal can be generated. The power level of the beauty device can be a power level determined by user input, or a power level determined by the beauty device according to settings or some detection results.

[0063] The waveform parameter configuration signal and the switching control signal, combined with the driving action of the switching chip, can dynamically control the output of AC and DC waveforms of different frequencies, adapting to different skin care scenarios and enhancing the adaptability and user experience of the beauty device.

[0064] In some embodiments, the switch switching circuit 14 is electrically connected to the waveform generation circuit 13 and is used to control the waveform generation circuit 13 to switch the output of the first waveform and the second waveform according to the control signal.

[0065] The first waveform is an AC waveform, and the second waveform is a DC waveform.

[0066] In some embodiments, the switch switching circuit 14 includes a switch chip (not shown), which is configured to generate a drive signal based on the waveform parameter configuration signal and waveform switching control signal generated by the control circuit 11, thereby controlling the waveform generation circuit 13 to output the target waveform.

[0067] Specifically, the switching chip generates a first drive signal corresponding to the first waveform and a second drive signal corresponding to the second waveform based on the waveform parameter configuration signal and the waveform switching control signal; the first drive signal and the second drive signal are used to drive the waveform generation circuit 13 to switch the output of the first waveform and the second waveform. The first waveform includes at least two AC waveforms with different frequencies.

[0068] The circuit diagram of boost circuit 12 is as follows: Figure 2 As shown.

[0069] The input of the boost circuit 12 is connected to the power supply and the control circuit 11, and is used to controllably boost the power supply voltage to the target value, thereby providing the energy basis for waveform generation.

[0070] In some embodiments, such as Figure 2 As shown, the boost circuit 12 adopts an inductor boost architecture. Its input terminal is connected to the power supply VSYS-5V and the control circuit 11. Stable boost output is achieved through chip U3 and external devices.

[0071] The working principle of the boost circuit 12 is as follows: the control signal controls the conduction state of the MOSFET Q7 through EMS-PWR-EN, and the U3 chip samples the output voltage through pin FB (EMS-FB-ADJ) and compares it with the internal reference voltage to form a closed-loop regulation, so that the output voltage is stabilized at the set value.

[0072] The output is connected to filter capacitors C36, C88, and C89, as well as a resistor network R86~R88, for voltage stabilization and feedback detection. EMS-V represents the boosted voltage output, and the EMS-V-ADC is used for voltage sampling to the MCU. This design allows the power supply voltage to be boosted to the required operating voltage, providing a stable energy foundation for subsequent waveform generation circuitry.

[0073] In some embodiments, the waveform generation circuit 13 is electrically connected to the output terminal of the boost circuit 12 and the control circuit 11, respectively, and is used to receive control signals to output at least a first waveform and a second waveform. The first waveform is an AC waveform, and the second waveform is a DC waveform.

[0074] In some embodiments, the first waveform is an EMS waveform or an electroporation waveform, and the second waveform is an iontophoresis waveform.

[0075] In some embodiments, the waveform generation circuit 13 is an H-bridge circuit, including two sets of symmetrical switching transistor pairs. The control circuit 11 controls the switching transistor pairs to turn on and off by outputting control signals to generate a symmetrical square wave. The switching transistor pairs can be MOSFETs or transistors.

[0076] Understandably, the H-bridge circuit is configured to generate a symmetrical square wave for EMS or electroporation. Specifically, the MCU generates the symmetrical square wave by controlling the on / off state of the switching pairs in the H-bridge circuit, and the frequency of EMS or electroporation can be adjusted by switching the operating frequency of the H-bridge circuit. When outputting the iontophoresis waveform, the H-bridge turns on either the two upper or two lower transistors to output one pole of the iontophoresis, while the other pole is controlled by turning the switching circuit on and off.

[0077] The aforementioned design of waveform generation circuit 13 can output AC signals with symmetrical square wave structures, improve waveform stability and symmetry, and further enhance the effect of the beauty process.

[0078] Please refer to Figure 3 The waveform generation circuit 13 is a standard H-bridge structure, consisting of two sets of symmetrically arranged MOS transistors Q13 to Q16. The waveform generation circuit 13 is connected to the output terminal of the boost circuit 12 and the first electrode group, respectively.

[0079] Please refer to the reference. Figures 3 to 7In some embodiments, the microcurrent output device is applied to a beauty instrument including a first electrode group and a second electrode group. The waveform generation circuit 13 is connected to the output terminal of the boost circuit 12 and the first electrode group, respectively. A switching circuit includes a waveform switching circuit and a switching circuit; the waveform switching circuit is connected to the waveform generation circuit, and the switching circuit is electrically connected to the second electrode group. When the waveform generation circuit is switched to output a first waveform, the first electrode group outputs the first waveform to the human skin; when the waveform generation circuit is switched to output a second waveform, the second waveform is output to the human skin through the first and second electrode groups.

[0080] Specifically, the waveform switching circuit includes a switching chip 141 for controlling the waveform generation circuit. The switching circuit includes an optocoupler switch, and the switching chip 141 is... Figure 4 U10 in the circuit is connected to waveform generation circuit 13. The following embodiment uses an optocoupler switch as an example for illustration.

[0081] Furthermore, the output principles of the first and second waveforms are as follows:

[0082] The control circuit 11 sends the PWM control signal EMS-PWMA+D, EMS-PWMA-U, EMS-PWMB-U or EMS-PWMB+D to the waveform switching circuit U10, which controls the upper and lower, left and right bridge arms to conduct alternately to generate different waveforms.

[0083] When the control signal alternately drives the switching transistors Q13 and Q16, and Q14 and Q15 to turn on and off, the output terminal forms an alternating current direction, realizing the symmetrical AC waveform required for EMS or electroporation.

[0084] When both switches in the upper or lower bridge arm are simultaneously turned on (i.e., switches Q13 and Q14 are on, or switches Q15 and Q16 are on), a constant-direction DC waveform is output for iontophoresis. By adjusting the control signal frequency and duty cycle, various waveforms can be dynamically output to meet the electrical stimulation requirements of different beauty scenarios.

[0085] Specifically, U10 receives the waveform control signals EMS-CTR1~CTR4 output by the control circuit 11, which are used to control the operating state of the H-bridge switching transistors in the waveform generation circuit. The control principle of the output waveform is as follows:

[0086] When the first waveform is output, the switching chip 141 outputs a diagonally complementary first PWM signal. U10 controls the H bridge to conduct alternately based on the first PWM signal, generating a symmetrical square wave first waveform. This first waveform is an AC waveform, and the frequency switches within the range of 12.5Hz-1KHz (low frequency) or 2KHz-5KHz (medium frequency) to achieve symmetrical AC output.

[0087] When the second waveform is output, the switching chip 141 outputs a second PWM signal that complements the upper and lower half-bridges. U10 controls the upper or lower bridge arm of the H bridge to conduct based on the second PWM signal, and outputs a unipolar DC waveform, i.e., the second waveform, which is a DC waveform.

[0088] Meanwhile, an optocoupler switch circuit is used to control the on / off state of the second electrode. It conducts when outputting a DC waveform to form a complete current loop, and remains off when outputting an AC waveform to avoid interference with the symmetrical waveform output. This circuit structure can automatically control the electrode on / off state according to the output waveform pattern, improving the output stability of the electrical stimulation function.

[0089] Specifically, in some embodiments, the first electrode is configured to contact the skin of the face, and the second electrode is configured to contact the skin of the hand. When positive ion introduction is required, the control circuit controls the upper half-bridge switch pair of the H-bridge circuit to conduct and the lower half-bridge switch pair to turn off, so that the output terminal of the microcurrent generating circuit (electrically connected to the first electrode) is positive and the handle terminal (electrically connected to the second electrode) is negative. When negative ion introduction is required, the lower half-bridge switch pair is controlled to conduct and the upper half-bridge switch pair to turn off, so that the output terminal of the microcurrent generating circuit is negative and the handle terminal is positive. This polarity control enables precise switching of the introduction of different nutrients to meet different needs.

[0090] More specifically, when the second waveform is output, U10 controls the switching transistors of only the upper or lower arm of the H-bridge to conduct, thereby outputting a unipolar DC waveform (i.e., the second waveform). At the same time, the control circuit also controls the switching circuit (i.e., the optocoupler switch at the handle end) connected to the second electrode to conduct, so that the second electrode is electrically connected to the ground terminal, forming a complete microcurrent loop and realizing the ion introduction function.

[0091] Specifically:

[0092] When the upper arm of the H-bridge is on and the lower arm is off, the first electrode outputs a positive electrode and the second electrode outputs a negative electrode, which is suitable for the introduction of positive ions (such as nutrients like vitamin C, calcium, and magnesium).

[0093] When the lower arm of the H-bridge is on and the upper arm is off, the first electrode outputs a negative electrode and the second electrode outputs a positive electrode, which is suitable for the introduction of negative ions (such as hyaluronic acid, vitamin E, etc.).

[0094] The optocoupler switch at the handle end is controlled to conduct in DC mode, thereby improving the efficiency of nutrient delivery and the stability of electrical stimulation.

[0095] Please refer to Figure 5 The optocoupler switch is electrically connected to the second electrode group, namely the aforementioned optocoupler switch at the handle end, including the auxiliary switch chip UU3.

[0096] The circuit diagram of the optocoupler switch is as follows: Figure 5 As shown; when the waveform generation circuit 13 is switched to output the first waveform, the first electrode group outputs the first waveform to the human skin; when the waveform generation circuit 13 is switched to output the second waveform, the second waveform is output to the human skin through the first electrode group and the second electrode group.

[0097] Specifically, Figure 4 The optocoupler switch shown includes an auxiliary switch chip UU3, a transistor Q2, resistors R5, R8, R9, R11, R12, and a filter capacitor C19.

[0098] When a DC waveform needs to be output, the control circuit 11 outputs a control signal to turn on Q2, thereby illuminating the LED inside the auxiliary switch chip UU3, which in turn turns on the optocoupler transistor. The EMS-V voltage is then connected to the second electrode via the optocoupler path, forming a complete micro-current output loop. At this time, the H-bridge circuit provides a DC waveform to the first electrode, and the second electrode at the handle serves as the other end of the loop, realizing the ion-importing function.

[0099] Conversely, when an AC waveform needs to be output, the control circuit does not output a control signal, Q2 is turned off, and the optocoupler switch at the handle end is closed, thereby disconnecting the handle end circuit.

[0100] In some embodiments, such as Figure 4 As shown, the switch chip 141 is a multi-channel analog switch device. The input terminals of its multiple channels are respectively connected to the control signal lines output by the control circuit, such as EMS-CTR1 to EMS-CTR4. The output terminals are respectively connected to the drive control terminals of multiple switching transistors of the H-bridge circuit in the waveform generation circuit 13.

[0101] In some embodiments, the beauty device includes a first electrode group and a second electrode group, and also includes a main unit and an infusion head 20, wherein the first electrode group and the second electrode group are disposed on the infusion head 20; or, the first electrode group is disposed on the infusion head 20 and the second electrode group is disposed on the main unit.

[0102] Specifically, the switch switching circuit 14 further includes a switching sub-circuit and a switching sub-circuit. The switching sub-circuit is electrically connected to the waveform generation circuit 13 and is used to receive waveform switching signals from the switch chip 141, thereby controlling the output selection of the first waveform or the second waveform; the switching sub-circuit is electrically connected to the second electrode group and conducts the circuit in DC mode.

[0103] In practical applications, the first electrode group is used to contact the face, and the second electrode group is used to contact the hands; both are specifically located at the handle 30 of the beauty device. When outputting an AC waveform, only the first electrode group contacts the skin and outputs current.

[0104] When switching to DC waveform, if the first electrode group is positive, it contacts the face for nutrient introduction; otherwise, it is used for nutrient removal. When outputting DC, the second electrode group contacts the hand to form a circuit. When the second electrode is set to negative, it is for introduction; when set to positive, it is for removal. Thus, the difference in polarity is used to remove dirt and introduce nutrients.

[0105] Based on the foregoing embodiments, the present invention also provides a beauty device, including a microcurrent output device 10 as described above. The microcurrent output device 10 is integrated into the beauty device, specifically integrated into the main unit or the inlet head 20 of the beauty device, and includes a control circuit 11, a boost circuit 12, a waveform generation circuit 13, and a switch switching circuit 14.

[0106] By integrating a microcurrent output device 10 into the beauty device, it is beneficial to improve the performance of the beauty device while achieving integrated drive and output control.

[0107] Please refer to Figure 6 , Figure 7 In this embodiment, the beauty device also includes a main unit, an import head 20, a first electrode group and a second electrode group, wherein the first electrode group and the second electrode group are disposed on the import head 20; or, the first electrode group is disposed on the import head 20 and the second electrode group is disposed on the main unit.

[0108] By configuring the first electrode group and the second electrode group on the infusion head 20 and the main unit respectively, and flexibly combining the current path according to the specific application scenario, the flexibility of the beauty device can be improved.

[0109] The circuit diagram of the import head 20 is as follows Figure 8 As shown. When the inlet head 20 is not connected to the host, R1 is not connected to the circuit. When the inlet head 20 is connected to the host, R1 is connected to the circuit. The MCU detects that the voltage is higher than the set threshold, determines that the electrode head is connected, and automatically enters the ionization mode. In this embodiment, the inlet head 20 and the host are either fixedly assembled or detachably connected. The inlet head 20 is provided with a first conductive electrode, and the host is provided with a second conductive electrode. The host is electrically connected to the first conductive electrode through the second conductive electrode.

[0110] The main unit and the infusion head 2 are connected by a detachable structure and are electrically connected through conductive electrodes, which makes it easier for users to replace the infusion head and improves the ease of use of the product.

[0111] In practical applications, the first electrode group is used to contact the face, and the second electrode group is used to contact the hands. When outputting an AC waveform, only the first electrode group contacts the skin and outputs current.

[0112] When switching to DC waveform, if the first electrode group is positive, it contacts the face for nutrient introduction; otherwise, it is used for nutrient removal. When outputting DC, the second electrode group contacts the hand to form a circuit. When the second electrode is set to negative, it is for introduction; when set to positive, it is for removal. Thus, the difference in polarity is used to remove dirt and introduce nutrients.

[0113] like Figure 9 As shown, where Figure 9 (a) in the image represents the front view of the import header 20. Figure 9 (b) shows the back of the infusion head 20. In one embodiment, the main unit of the beauty device is connected to the infusion head 20 via spring pins. The infusion head 20 has two spring pins, IONT1 and IONT2. After the infusion head 20 is magnetically attached to the main unit, the main unit detects the connection and automatically enters current output mode, outputting a microcurrent waveform. The infusion head 20 is equipped with electrodes TP-1 to TP-4 for contacting the skin and outputting microcurrents to promote effective absorption of the serum by the skin.

[0114] In some embodiments, the beauty device further includes an infusion head detection circuit 21, which is electrically connected to the control circuit 11, for detecting whether the infusion head 20 is connected to the host.

[0115] Furthermore, the microcurrent output device includes a waveform generation circuit 13, and an inlet head detection circuit 21 is connected to the output terminal of the waveform generation circuit 13 to detect changes in load current and provide feedback signals to the control circuit 11 to determine whether the inlet head is connected.

[0116] The infusion head detection circuit 21 detects in real time whether the infusion head 20 is connected to the host, realizing the identification of the infusion status and triggering of linkage logic. It can automatically switch the working mode according to the connection status, which improves the intelligence level and ease of operation of the beauty device.

[0117] Specifically, the inlet head detection circuit 21 is connected to the output of the waveform generation circuit 13. It is used to sample the voltage change caused by the load current of the inlet head and provide the feedback signal to the micro control unit in the control circuit 11 to realize the judgment of the inlet head connection status and the triggering of the control logic.

[0118] The input head detection circuit 21 is directly connected to the output terminal of the waveform generation circuit, and feeds back the load current change to the control circuit to achieve accurate judgment based on load characteristics, thereby improving detection sensitivity.

[0119] The H-bridge circuit's default output power supply voltage. When the inlet head 20 is connected, due to the high-impedance load (e.g., 3K) inside the inlet head 20, the MCU's sampled value will be higher than the threshold set by the MCU. At this time, the MCU detects that the electrode head has been connected and automatically activates the ionization mode, automatically switching the output of EMS waveform, electroporation waveform, and ion implantation waveform. When the inlet head 20 is removed from the host, the MCU's sampled value will be lower than the threshold set by the MCU, and the host will automatically exit the ionization mode.

[0120] Further, please refer to Figure 10 The beauty device is equipped with an embedded power supply 41 to provide stable power support for each module of the system. The control circuit 11 includes an embedded chip 1121. The infusion head detection circuit 21 includes: a voltage divider resistor circuit, which generates a voltage change and a voltage change signal when the infusion head 20 is connected to the host; and a threshold comparison circuit, which is triggered by the voltage change signal and outputs a signal to the embedded chip when the voltage change is higher than a preset threshold, so that the embedded chip controls the micro-current waveform output, thereby realizing the intelligent recognition of the infusion head connection status and the linkage control of the micro-current output.

[0121] The combination of the voltage divider resistor circuit and the threshold comparison circuit creates a clear voltage fluctuation when the inlet head is connected, enhancing the accuracy of detection and judgment, and enabling a rapid response to the inlet status.

[0122] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not be construed as limiting the scope of protection of this application. Any technical solutions resulting from equivalent structural or procedural substitutions or modifications made based on the essential concept of this application and utilizing the content described in the text and drawings of this application, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of protection of this application.

Claims

1. A microcurrent output device for a beauty instrument, characterized in that, The microcurrent output device includes: The control circuit is configured to generate a control signal to control the micro-current waveform output. A boost circuit, wherein the input terminal of the boost circuit is connected to the power supply and the control circuit, and is used to controllably boost the power supply voltage to a target value; A waveform generation circuit is electrically connected to the output terminal of the boost circuit and the control circuit, respectively, and is used to receive the control signal to output at least a first waveform and a second waveform. A switching circuit, electrically connected to the waveform generation circuit, is used to control the waveform generation circuit to switch between outputting a first waveform and a second waveform according to the control signal. The first waveform is an AC waveform, and the second waveform is a DC waveform.

2. The microcurrent output device of the beauty instrument according to claim 1, characterized in that, The control signals include waveform parameter configuration signals and waveform switching control signals; The control circuit includes: The control circuit is configured to generate the waveform parameter configuration signal, control the output voltage of the boost circuit, and generate the waveform switching control signal. The switching circuit includes a switching chip, which is configured to generate a first driving signal corresponding to the first waveform and a second driving signal corresponding to the second waveform based on the waveform parameter configuration signal and the waveform switching control signal; the first driving signal and the second driving signal are used to drive the waveform generation circuit to switch the output of the first waveform and the second waveform. The first waveform includes at least two AC waveforms with different frequencies.

3. The microcurrent output device of the beauty instrument according to claim 1, characterized in that: The beauty device includes a first electrode group and a second electrode group; The waveform generation circuit is connected to the output terminal of the boost circuit and the first electrode group, respectively. The switching circuit includes a waveform switching circuit and a switching circuit. The waveform switching circuit is connected to the waveform generation circuit, and the switching circuit is electrically connected to the second electrode group. When the waveform generation circuit is switched to output the first waveform, the first electrode group outputs the first waveform to human skin; When the waveform generation circuit is switched to output the second waveform, the second waveform is output to human skin through the first electrode group and the second electrode group.

4. The microcurrent output device of the beauty instrument according to claim 1, characterized in that, The waveform generation circuit includes two sets of symmetrical switching transistor pairs. The control circuit controls the switching transistor pairs to turn on and off by outputting the control signal to generate a symmetrical square wave.

5. A beauty device, characterized in that, Includes the microcurrent output device according to any one of claims 1-4.

6. The beauty device according to claim 5, characterized in that, The beauty device further includes a main unit, an infusion head, a first electrode group, and a second electrode group, wherein the first electrode group and the second electrode group are disposed on the infusion head; or, the first electrode group is disposed on the infusion head, and the second electrode group is disposed on the main unit.

7. The beauty device according to claim 6, characterized in that, The inlet head is detachably connected to the host. The inlet head is provided with a first conductive electrode, and the host is provided with a second conductive electrode. The host is electrically connected to the first conductive electrode through the second conductive electrode.

8. The beauty device according to claim 7, characterized in that, The beauty device also includes an infusion head detection circuit; The inlet head detection circuit is electrically connected to the control circuit and is used to detect whether the inlet head is connected to the host.

9. The beauty device according to claim 8, characterized in that, The microcurrent output device includes the waveform generation circuit, and the inlet head detection circuit is connected to the output terminal of the waveform generation circuit. It is used to detect changes in load current and provide feedback signals to the control circuit to determine whether the inlet head is connected.

10. The beauty device according to claim 8 or 9, characterized in that, The inlet head detection circuit includes: The voltage divider resistor circuit is used to generate a voltage change and produce a voltage change signal when the inlet head is connected to the host. A threshold comparison circuit is used to be triggered by the voltage change signal and to output a signal to the embedded chip when the voltage changes to a level higher than a preset threshold, so that the embedded chip controls the micro-current waveform output.

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