Ion beauty instrument

Abstract

The utility model discloses an ion beauty instrument which comprises an output generation module, a detection module, a cold and hot module and a control module, the detection module obtains impedance of skin in real time and feeds back the impedance to the control module, and the control module enables the output generation module to output ion signals of corresponding current to an electrode of the ion beauty instrument according to the impedance. The intensity of an ion signal is matched with skin impedance, constant-current control over a load loop is achieved, and the requirement for iontophoresis is met in the mode of automatically adjusting the ion current. And meanwhile, the control module enables the cold and hot module to heat the electrode, so that the skin is warmed when the electrode outputs the ion signal, and the absorption of the skin care product can be promoted.

Description

Technical Field

[0001] The utility model relates to the field of beauty and skin care instruments, and particularly to an ionic beauty instrument. Background Art

[0002] A beauty instrument is a machine that can adjust and improve the body and facial skin according to the physiological functions of the human body. Classified by name, there are ultrasonic introduction, photon rejuvenation, high-frequency electrotherapy, RF radio frequency skin tightening, freckle and nevus removal, hair removal and skin rejuvenation, ion introduction and export, etc. Among them, ion introduction can facilitate the introduction of skin care products into the skin basal layer and promote the skin to absorb skin care products, and it is a medical device that can be registered by the National Medical Products Administration.

[0003] Most of the common ion introduction and export instruments on the market use voltage as a measurement index, and constant current introduction is preferred over constant voltage. No matter what changes occur in the human skin resistance, the magnitude of the applied current will not exceed the preset level. For example, "Iontophoresis" (the link is

[0004] https: / / www.electrotherapy.org / iontophoresis) details the ion introduction function and the parameters of the maximum safe current. For example, the Chinese invention patent with the application number CN201680045024.6 and the name of skin care device discloses that microcurrent is output through electrodes for the introduction of skin care products. Specifically, according to the gear level, the voltage adjustment unit outputs the corresponding voltage to adjust the intensity of the current applied to the head of the device. However, the current output by this skin care device in the same gear is constant, and the skin of different people will have different impedances due to different skin types (including dry skin, oily skin, skin of different genders, skin of different age groups, etc.). That is, the human skin is used as the load for the operation of the beauty instrument. When the skin contacted by the electrodes is different, the working load will also be different, and the prior art cannot adjust the current magnitude of the ion signal according to the size of the load impedance. Summary of the Utility Model

[0005] In view of the deficiencies of the above prior art, the purpose of the present utility model is to provide an ionic beauty instrument that can control the current magnitude of the ion signal according to the skin impedance.

[0006] To solve the above technical problems, the present utility model adopts the following technical solutions:

[0007] An ionic beauty instrument includes an output generation module, a detection module, a cold and heat module, and a control module. The detection module obtains the impedance of the skin in real time and feeds it back to the control module. The control module makes the output generation module output an ion signal with a corresponding current to the electrodes of the ionic beauty instrument according to the impedance, and at the same time makes the cold and heat module generate heat to heat the electrodes.

[0008] In the described ion beauty device, the control module includes a main control unit and at least two constant current switch units, and the main control unit controls the corresponding constant current switch unit to conduct according to the impedance so that the output generating module outputs an ion signal of a corresponding current.

[0009] In the described ion beauty device, the output generating module includes an EMS unit, an ion unit, and an EMS and ion multiplexing unit. The control module controls the ion unit and the EMS and ion multiplexing unit to generate positive and negative ion signals of corresponding currents and output them to at least one electrode respectively; or the control module controls the EMS unit and the EMS and ion multiplexing unit to generate positive and negative EMS pulse signals of corresponding currents and output them to one electrode respectively.

[0010] In the described ion beauty device, the ion unit includes a first triode, a second triode, a third triode, a first resistor, a second resistor, a third resistor, a fourth resistor, and a fifth resistor. The base of the first triode is connected to the control module through the first resistor, the emitter of the first triode is grounded, the collector of the first triode is connected to the base of the second triode and one end of the third resistor through the second resistor, the emitter of the second triode is connected to the other end of the third resistor, the collector of the second triode is connected to one electrode and the collector of the third triode, the emitter of the third triode is connected to the detection module, and the base of the third triode is connected to the control module through the fourth resistor and also grounded through the fifth resistor.

[0011] In the described ion beauty device, the EMS unit, the EMS and ion multiplexing unit are the same as the ion unit. Each of the EMS unit and the EMS and ion multiplexing unit is connected to one electrode. When the output generating module outputs an ion signal, the electrodes connected to the EMS unit and the EMS and ion multiplexing unit serve as the positive or negative pole of the ion signal, and the electrode connected to the ion unit serves as the negative or positive pole of the ion signal; when the output generating module outputs an EMS pulse signal, the electrode connected to the EMS unit serves as the positive or negative pole of the EMS pulse signal, and the electrode connected to the EMS and ion multiplexing unit serves as the negative or positive pole of the EMS pulse signal.

[0012] In the described ion beauty device, the output generating module further includes an isolation unit for isolating the EMS function from the ion function, and the isolation unit is connected to the control module, the EMS unit, the ion unit, and the EMS and ion multiplexing unit.

[0013] In the described ion beauty device, the isolation unit includes a first diode, a second diode, a third diode,

[0014] The fourth diode, the fifth diode, the sixth diode, the seventh diode, and the eighth diode. The anodes of the first diode and the second diode are connected to the control module and one end of the first resistor. The cathode of the first diode is connected to the EMS and ion multiplexing unit and the cathode of the third diode. The cathode of the second diode is connected to the EMS unit and the cathode of the fourth diode. The anode of the third diode is connected to the control module and the anode of the fifth diode. The anode of the fourth diode is connected to the control module and the anode of the sixth diode. The cathode of the fifth diode is connected to the EMS unit and the cathode of the seventh diode. The cathode of the sixth diode is connected to the EMS and ion multiplexing unit and the cathode of the eighth diode. The anode of the seventh diode is connected to the control module, the anode of the eighth diode, and one end of the fourth resistor.

[0015] In the ion beauty device, the detection module includes a ground loop resistor and an amplification and filtering unit. One end of the ground loop resistor is connected to the emitter of the third triode and is also connected to the control module through the amplification and filtering unit. The other end of the ground loop resistor is grounded. The constant current switching unit includes a current limiting resistor and an electronic switch for connecting the current limiting resistor. One end of the current limiting resistor is connected to the boost unit of the output generating module. The other end of the current limiting resistor is connected to the EMS unit, the ion unit, and the EMS and ion multiplexing unit. The electronic switch is connected in parallel with the current limiting resistor, and the control end of the electronic switch is connected to the main control unit. The resistance values of the current limiting resistors of each constant current switching unit are different.

[0016] In the ion beauty device, the cooling and heating module includes a thermoelectric cooler and a cooling and heating control unit. The thermoelectric cooler is connected to the control module through the cooling and heating control unit, and the thermoelectric cooler is in close contact with the electrode at the head of the ion beauty device.

[0017] In the ion beauty device, the control module further includes a manipulation unit. The manipulation unit receives manipulation instructions and feeds them back to the main control unit. The main control unit causes the output generating module to perform power on / off, mode switching, or gear switching according to the manipulation instructions.

[0018] Compared with the prior art, in the ion beauty device provided by the present utility model, when the electrode of the beauty device contacts the skin, the detection module real-time obtains the impedance of the skin and feeds it back to the control module. The control module causes the output generating module to output an ion signal with a corresponding current to the electrode according to the impedance, so that the intensity of the ion signal is adapted to the skin impedance data, realizing constant current control of the load loop. By automatically adjusting the ion current, the requirements of iontophoresis are met. And while iontophoresis is performed, the control module causes the cooling and heating module to generate heat to heat the electrode, so that when the electrode outputs an ion signal, it also warms the skin, thereby promoting the absorption of skin care products. Description of the Drawings

[0019] Figure 1 The structural block diagram of the ion beauty instrument provided by the present utility model.

[0020] Figure 2 The circuit schematic diagram of the output generation module of the ion beauty instrument provided by the present utility model.

[0021] Figure 3 The circuit schematic diagram of the control module of the ion beauty instrument provided by the present utility model.

[0022] Figure 4 The circuit schematic diagram of the heat and cold control unit of the ion beauty instrument provided by the present utility model.

[0023] Description of the reference numerals

[0024] Output generation module 10, EMS unit 11, ion unit 12, EMS and ion multiplexing unit 13, boost unit 14, detection module 20, control module 30, main control unit 31, constant current switch unit 32, operation unit 33, heat and cold module 40, semiconductor refrigeration sheet 41, heat and cold control unit 42, ground loop resistance RD, current limiting resistor RL, first operation key S1, second operation key S2, first triode Q1, second triode Q2, third triode Q3, first resistor R1, second resistor R2, third resistor R3, fourth resistor R4, fifth resistor R5, main control chip U1, fourth triode Q4, fifth triode Q5, sixth triode Q6, sixth resistor R6, seventh resistor R7, eighth resistor R8, ninth resistor R9, tenth resistor R10, eleventh resistor R11, seventh triode Q7, eighth triode Q8, ninth triode Q9, twelfth resistor R12, thirteenth resistor R13, fourteenth resistor R14, fifteenth resistor R15, sixteenth resistor R16, seventeenth resistor R17, first boost chip U2, thirteenth triode Q10, eleventh triode Q11, first MOS tube Q12, second MOS tube Q13, third MOS tube Q14, fourth MOS tube Q15, eighteenth resistor R18, nineteenth resistor R19, twentieth resistor R20, twenty-first resistor R21, twenty-second resistor R22, twenty-third resistor R23, second boost chip U3, inductor L1, ninth diode D9, twenty-fourth resistor R24, twenty-fifth resistor R25, twenty-sixth resistor R26, capacitor C1, first diode D1, second diode D2, third diode D3, fourth diode D4, fifth diode D5, seventh diode D7, eighth diode D8, ninth diode D9 Detailed implementation manners

[0025] In order to make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0026] Please refer to Figure 1 , which is a structural block diagram of an ion beauty instrument provided by the present utility model. As shown in the figure, the ion beauty instrument provided by the present utility model includes an output generation module 10, a detection module 20, a control module 30, a cold and hot module 40, and at least two electrodes (not labeled in the figure). The output generation module 10 and the detection module 20 are connected to the control module 30, and the output generation module 10 is connected to the electrodes.

[0027] When in use, the ion import function can be turned on. When the electrodes of the beauty instrument are in contact with the skin, the detection module 20 can obtain the impedance of the skin in real time and feedback it to the control module 30. The control module 30 can make the output generation module 10 output an ion signal with a corresponding current to the electrodes according to the impedance (that is, the control module 30 can control the output generation module 10 to output a negative ion signal with a corresponding current intensity according to the skin of different skin types), so that the intensity of the ion signal matches the skin impedance data, realizing constant current control of the load circuit, automatically adjusting the ion current to meet the import requirements, so as to ensure the stability of the current when importing different human impedances, that is, to ensure the stability of the import effect, so as to meet the import penetration effect requirements when the ion signal acts on different skins. And at the same time of negative ion import, the control module makes the cold and hot module heat up to heat the electrodes, so that the electrodes can warm the skin while outputting negative ion signals. Locally warming the skin can dilate the pores of the skin and improve local blood circulation, enhancing the promoting effect on skin care products, thereby promoting the absorption of skin care products by the skin.

[0028] In the ion beauty instrument described above, the control module 30 includes a main control unit 31 and at least two constant current switch units 32. The control ends of the constant current switch units 32 are connected to the main control unit 31, and each constant current switch unit 32 is also connected to the output generation module 10.

[0029] The resistance values of the constant current switch units 32 are different and can be used to limit the current of the power supply of the output generation module 10. The main control unit 31 controls the corresponding constant current switch unit 32 to conduct according to the impedance, which can change the driving current of the output generation module 10, so that the output generation module 10 outputs an ion signal with a corresponding current, so that the ion signal can adapt to the skin of different skin types and improve the penetration effect of skin care products.

[0030] Please refer to together Figures 2 to 4, in the ion beauty device of the present utility model, the output generation module 10 includes an EMS unit 11, an ion unit 12, and an EMS and ion multiplexing unit 13. The control module 30 controls the ion unit 12 and the EMS and ion multiplexing unit 13 to generate positive and negative ion signals of corresponding currents and output them to at least one electrode respectively; or the control module 30 controls the EMS unit 11 and the EMS and ion multiplexing unit 13 to generate positive and negative EMS pulse signals of corresponding currents and output them to an electrode respectively.

[0031] Further, the output generation module 10 further includes a boost unit 14, which is used to boost and regulate the power supply voltage (such as the power supply voltage provided by the power supply module of the ion beauty device), supply power to the EMS unit 11, the ion unit 12, and the EMS and ion multiplexing unit 13, and it can output different working voltages according to different working modes. For example, when the ion beauty device works in the EMS mode, the output voltage of the boost unit 14 is 5V - 8V; when the ion beauty device works in the ion import and export mode, the output voltage of the boost unit 14 is 10V - 18V.

[0032] Please continue to refer to Figures 2 to 4 , the main control unit 31 includes a main control chip U1, which is used to control the functions of the ion beauty device, such as controlling the ion beauty device to turn on, turn off, switch modes, switch gears, light effects, cold and heat control, sound prompts, etc. The main control chip U1 can adopt a single-chip microcomputer of model STC8H3K32S2, which has the characteristics of low power consumption, strong anti-interference ability, fast processing speed, and rich IO ports, facilitating the functional expansion control of the ion beauty device.

[0033] The ion unit 12 includes a first triode Q1, a second triode Q2, a third triode Q3, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, and a fifth resistor R5. Among them, the first triode Q1 and the third triode Q3 are NPN triodes, and when their bases are at high level, the triodes conduct; the second triode Q2 is a PNP triode, and when its base is at low level, the triode conducts.

[0034] The base of the first triode Q1 is connected to the control module 30 (such as the P0.7 pin of the main control chip U1) through the first resistor R1. The emitter of the first triode Q1 is grounded. The collector of the first triode Q1 is connected to the base of the second triode Q2 and one end of the third resistor R3 through the second resistor R2. The emitter of the second triode Q2 is connected to the other end of the third resistor R3 and the boost unit 14. The collector of the second triode Q2 is connected to an electrode and the collector of the third triode Q3. The emitter of the third triode Q3 is connected to the detection module 20. The base of the third triode Q3 is connected to the control module 30 (such as the P3.6 pin of the main control chip U1) through the fourth resistor R4 and is also grounded through the fifth resistor R5.

[0035] Optionally, the EMS unit 11, the EMS and ion multiplexing unit 13, and the ion unit 12 are the same, that is, the circuits of the EMS unit 11, the EMS and ion multiplexing unit 13, and the ion unit 12 are the same, and only the control ends are connected to different IO ports of the main control chip U1.

[0036] The EMS unit 11 and the EMS and ion multiplexing unit 13 are each connected to an electrode. When the output generating module 10 outputs an ion signal, the electrodes connected to the EMS unit 11 and the EMS and ion multiplexing unit 13 serve as the positive or negative poles of the ion signal, and the electrode connected to the ion unit 12 serves as the negative or positive pole of the ion signal; when the output generating module 10 outputs an EMS pulse signal, the electrode connected to the EMS unit 11 serves as the positive or negative pole of the EMS pulse signal, and the electrode connected to the EMS and ion multiplexing unit 13 serves as the negative or positive pole of the EMS pulse signal.

[0037] In this embodiment, the electrodes of the ion beauty device are three metal electrodes, namely: the first electrode ION, the second electrode NQ, and the third electrode WQ. Among them, the first electrode ION can be arranged on the handle of the ion beauty device and contacts the human hand, and the second electrode NQ and the third electrode WQ can be arranged at the head of the ion beauty device for contacting the parts of the human body that need skin care (scalp, face, neck or other parts).

[0038] Optionally, the EMS unit 11, the ion unit 12, and the EMS and ion multiplexing unit 13 are each connected to an electrode. Specifically, the output end of the ion unit 12 is connected to the first electrode ION, the output end of the EMS unit 11 is connected to the second electrode NQ, and the output end of the EMS and ion multiplexing unit 13 is connected to the third electrode WQ. The control ends of the EMS unit 11, the ion unit 12, and the EMS and ion multiplexing unit 13 are respectively connected to an output end of the main control unit 31.

[0039] When the ion beauty device works in the ion import / export mode, in this embodiment, it can be understood that the positive ion signal (or negative ion signal) output by the ion unit 12 is output to the first electrode ION, and the negative ion signal (or positive ion signal) generated by the EMS and ion multiplexing unit 13 is output to the second electrode NQ and the third electrode WQ. At this time, the second electrode NQ and the third electrode WQ can be regarded as the same electrode for the ion signal. When the first electrode ION outputs a positive ion signal and the second electrode NQ and the third electrode WQ simultaneously output negative ion signals, it is used for the import function. On the contrary, when the first electrode ION outputs a negative ion signal and the second electrode NQ and the third electrode WQ simultaneously output positive ion signals, it is used for skin cleansing, and the positive and negative ion signals can be output alternately. During use, an ion signal loop is formed among the first electrode ION, the user's hand, the second electrode NQ and the third electrode WQ, and the face (or other parts to be skin cared).

[0040] When the ion beauty device works in the EMS microcurrent massage mode, in this embodiment, it can be understood that the positive EMS signal (or EMS signal) output by the EMS unit 11 is output to the second electrode NQ, and the negative EMS signal (or positive EMS signal) generated by the EMS and ion multiplexing unit 13 is output to the third electrode WQ. At this time, the second electrode NQ and the third electrode WQ can be respectively regarded as the positive and negative electrodes for the EMS signal. When the second electrode NQ and the third electrode WQ contact the skin, the EMS function works normally, and at this time, the first electrode ION has no signal output. In the ion beauty device, the output generation module 10 further includes an isolation unit for isolating the EMS function from the ion function, and the isolation unit is connected to the control module 30, the EMS unit 11, the ion unit 12, and the EMS and ion multiplexing unit 13.

[0041] In an optional embodiment, the EMS and ion multiplexing unit 13 includes a fourth triode Q4, a fifth triode Q5, a sixth triode Q6, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, and an eleventh resistor R11. Among them, the fourth triode Q4 and the sixth triode Q6 are NPN triodes, and when their bases are at high level, the triodes conduct; the fifth triode Q5 is a PNP triode, and when its base is at low level, the triode conducts.

[0042] The base of the fourth triode Q4 is connected to the isolation unit through the sixth resistor R6. The emitter of the fourth triode Q4 is grounded. The collector of the fourth triode Q4 is connected to the base of the fifth triode Q5 and one end of the eighth resistor R7 through the seventh resistor R7. The emitter of the fifth triode Q5 is connected to the other end of the eighth resistor R8 and the boost unit 14. The collector of the fifth triode Q5 is connected to an electrode (the third electrode WQ), the collector of the sixth triode Q6, and is also grounded through the eleventh resistor R11. The emitter of the sixth triode Q6 is connected to the emitter of the third triode Q3 and the detection module 20. The base of the sixth triode Q6 is connected to the isolation unit through the ninth resistor R9 and is also grounded through the tenth resistor R10.

[0043] The EMS unit 11 includes a seventh triode Q7, an eighth triode Q8, a ninth triode Q9, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a fifteenth resistor R15, a sixteenth resistor R16, and a seventeenth resistor R17. Among them, the seventh triode Q7 and the ninth triode Q9 are NPN triodes, and when their bases are at high level, the triodes conduct. The eighth triode Q8 is a PNP triode, and when its base is at low level, the triode conducts.

[0044] The base of the seventh triode Q7 is connected to the isolation unit through the twelfth resistor R12. The emitter of the seventh triode Q7 is grounded. The collector of the seventh triode Q7 is connected to the base of the eighth triode Q8 and one end of the fourteenth resistor R14 through the thirteenth resistor R13. The emitter of the eighth triode Q8 is connected to the other end of the fourteenth resistor R14 and the boost unit 14. The collector of the eighth triode Q8 is connected to an electrode (the second electrode NQ), the collector of the ninth triode Q9, and is also grounded through the fifteenth resistor R15. The base of the ninth triode Q9 is grounded through the sixteenth resistor R16 and is also connected to the isolation unit (such as the negative poles of the second diode D2 and the fourth diode D4) through the seventeenth resistor R17. The emitter of the ninth triode Q9 is connected to the emitter of the sixth triode Q6, the emitter of the third triode Q3, and the detection module 20.

[0045] In other embodiments, the output generation module 10 may only include the EMS unit 11 and the ion unit 12. The control module 30 controls the EMS unit 11 to generate positive and negative EMS pulse signals of corresponding currents and outputs them to at least one electrode respectively, or controls the ion unit 12 to output positive and negative ion signals of corresponding currents and outputs them to at least one electrode respectively. At this time, 4 electrodes can be used, and the circuit structure is Figure 2Based on the output generation module 10, a circuit of a set of EMS and ion multiplexing units 13 is added, such that both the EMS unit 11 and the ion unit 12 control the positive and negative signals of two electrodes respectively through six symmetrically arranged triodes, and the ion function and the EMS micro-current function can also be completed respectively. In addition, the output generation module 10 can also be implemented by other circuit structures. The circuits provided by the present utility model are only examples of one or two implementation manners and should not be construed as a limitation to the present utility model.

[0046] In the described ion beauty device, the isolation unit includes a first diode D1, a second diode D2, a third diode D3, a fourth diode D4, a fifth diode D5, a sixth diode, a seventh diode D7, and an eighth diode D8. These diodes all play a role of unidirectional conduction and isolation, such that when the EMS unit 11 and the EMS and ion multiplexing unit 13 are operating, the ion unit 12 does not operate, or when the ion unit 12 and the EMS and ion multiplexing unit 13 are operating, the EMS unit 11 does not operate.

[0047] In this embodiment, the positive poles of the first diode D1 and the second diode D2 are connected to one end of a control module 30 (such as the main control chip U1 and pins 0.7) and a first resistor R1. The negative pole of the first diode D1 is connected to one end of the EMS and ion multiplexing unit 13 (such as one end of the ninth resistor R9) and the negative pole of the third diode D3. The negative pole of the second diode D2 is connected to one end of the EMS unit 11 (such as one end of the seventeenth resistor R17) and the negative pole of the fourth diode D4. The positive pole of the third diode D3 is connected to the control module 30 (such as the main control chip U1 and pin P0.5) and the positive pole of the fifth diode D5. The positive pole of the fourth diode D4 is connected to the control module 30 (such as the main control chip U1 and pin P2.3) and the positive pole of the sixth diode. The negative pole of the fifth diode D5 is connected to one end of the EMS unit 11 (such as one end of the twelfth resistor R12) and the negative pole of the seventh diode D7. The negative pole of the sixth diode is connected to one end of the EMS and ion multiplexing unit 13 (such as one end of the sixth resistor R6) and the negative pole of the eighth diode D8. The positive pole of the seventh diode D7 is connected to the control module 30 (such as the main control chip U1 and pin P3.6), the positive pole of the eighth diode D8, and one end of the fourth resistor R4.

[0048] Please continue to refer to Figure 2 and Figure 3, the detection module 20 includes a ground loop resistance RD and an amplification and filtering unit. One end of the ground loop resistance RD is connected to the emitter of the third triode Q3 and is also connected to the control module 30 through the amplification and filtering unit. The other end of the ground loop resistance RD is grounded; the constant current switching unit 32 includes a current limiting resistor RL and an electronic switch (such as an analog switch) for connecting the current limiting resistor RL. One end of the current limiting resistor RL is connected to the boost unit 14 of the output generating module 10, and the other end of the current limiting resistor RL is connected to the EMS unit 11, the ion unit 12, and the EMS and ion multiplexing unit 13. The electronic switch is connected in parallel with the current limiting resistor RL, and the control end of the electronic switch is connected to the main control unit 31; the resistance values of the current limiting resistors RL of each constant current switching unit 32 are different. Figure 2 Three constant current switching units 32 are shown, and their control ends are respectively connected to the P3.5 terminal, P2.7 terminal, and P2.6 terminal of the main control chip U1. The main control chip U1 makes the corresponding current limiting resistor RL access the circuit. Of course, more current limiting resistors RL of the constant current switching unit 32 can also be set as needed, and the present invention does not limit this.

[0049] The amplification and filtering unit can adopt an operational amplifier, such as LM358 and the peripheral capacitor C1 and resistor. After filtering through the capacitor and amplifying by LM358, it is output to the P3.5 pin of the main control chip U1.

[0050] The cooling and heating module 40 includes a thermoelectric cooler 41 and a cooling and heating control unit 42. The thermoelectric cooler 41 is connected to the control module 30 through the cooling and heating control unit 42. The thermoelectric cooler 41 is in close contact with the electrodes of the ion beauty instrument head. The thermoelectric cooler 41 can adopt a thermoelectric cooler of model HT064365. By controlling the cooling and heating control unit 42 by the control module 30 to apply a positive voltage or a negative voltage to the positive and negative electrodes of the thermoelectric cooler 41, the thermoelectric cooler 41 is cooled or heated, and the heat is conducted to the second electrode NQ and the third electrode WQ, and then the second electrode NQ and the third electrode WQ act on the skin for cold compress or hot compress.

[0051] Please refer to Figure 4, the cooling and heating control unit 42 includes a first boost chip U2, a thirteenth triode Q10, an eleventh triode Q11, a first MOS transistor Q12, a second MOS transistor Q13, a third MOS transistor Q14, a fourth MOS transistor Q15, an eighteenth resistor R18, a nineteenth resistor R19, a twentieth resistor R20, a twenty-first resistor R21, a twenty-second resistor R22, and a twenty-third resistor R23. The thirteenth triode Q10 and the eleventh triode Q11 are NPN triodes. The first MOS transistor Q12 and the third MOS transistor Q14 are P-channel MOS transistors, and the MOS transistors are turned on when their gates are at low level. The second MOS transistor Q13 and the fourth MOS transistor Q15 are N-channel MOS transistors, and the MOS transistors are turned on when their gates are at high level.

[0052] In this embodiment, one end of the thermoelectric cooler 41 is connected to the drains of the second MOS transistor Q13 and the fourth MOS transistor Q15, and is also connected to the battery interface of the ion beauty device through the twenty-first resistor R21. The base of the eleventh triode Q11 is connected to the P0.6 pin of the main control chip U1 through the twenty-second resistor R22. The collector of the eleventh triode Q11 is connected to the gates of the second MOS transistor Q13, the fourth MOS transistor Q15, and one end of the twenty-third resistor R23. The base of the thirteenth triode Q10 is connected to the P0.4 pin of the main control chip U1 through the eighteenth resistor R18. The collector of the thirteenth triode Q10 is connected to the gates of the first MOS transistor Q12, the third MOS transistor Q14, one end of the nineteenth resistor R19, and one end of the twentieth resistor R20. The source of the first MOS transistor Q12 is connected to the other end of the nineteenth resistor R19, the SW pin of the first boost chip U2, the source of the second MOS transistor Q13, and the other end of the twenty-third resistor R23. The drain of the first MOS transistor Q12 is connected to the other end of the twentieth resistor R20, the other end of the thermoelectric cooler 41, and the drain of the third MOS transistor Q14.

[0053] In the ion beauty device, the control module 30 further includes a manipulation unit 33. The manipulation unit 33 receives a manipulation instruction and feeds it back to the main control unit 31. The main control unit 31 causes the output generation module 10 to perform power on / off, mode switching, or gear switching according to the manipulation instruction.

[0054] Optionally, the control unit 33 includes a first control key S1 and a second control key S2. The two control keys can be mechanical keys, touch keys, etc. One end of the first control key S1 is grounded, and the other end of the first control key S1 is connected to the P2.4 pin of the main control chip U1, which is mainly used to control the power on / off and mode switching functions of the beauty device. The power on / off is achieved by long pressing for more than 2 seconds, and the mode switching is controlled by a short key. One end of the second control key S2 is grounded, and the other end of the second control key S2 is connected to the P5.0 pin of the main control chip U1, which is mainly used to switch gears in the current working mode.

[0055] Further, the boost unit 14 includes a second boost chip U3, an inductor L1, a ninth diode D9, a twenty-fourth resistor R24, a twenty-fifth resistor R25, a twenty-sixth resistor R26, and a capacitor C1. The VCC pin of the second boost chip U3 is connected to one end of the inductor L1 and also connected to the 5V power supply terminal through the twenty-sixth resistor R26. The SW pin of the second boost chip U3 is connected to the other end of the inductor L1 and the positive electrode of the ninth diode D9. The negative electrode of the ninth diode D9 is connected to the FB pin of the second boost chip U3 and one end of the constant current switch unit 32 (such as a current limiting resistor) through the twenty-fourth resistor R24, also connected to the P0.3 pin of the main control chip U1 through the twenty-fifth resistor R25, and also grounded through the capacitor C1.

[0056] To better understand the technical solution of the present invention, the following takes the mode switching sequence of ion introduction, ion extraction, EMS microcurrent, cold compress, and hot compress as application examples, and combines Figures 2 to 4 to describe in detail the working method of the ion beauty device of the present invention:

[0057] Long press the first control key S1 to turn on the ion beauty device. After turning on, it will remember the previous working mode and directly start the corresponding working mode. The working modes of the ion beauty device include but are not limited to ion introduction, ion extraction, EMS microcurrent, cold compress, etc.

[0058] For example: when the negative ion is for the ion introduction function and the working mode after startup is the ion introduction function, the P0.7 pin of the main control chip U1 outputs a high level, and the P3.6 pin outputs a low level. At this time, the second diode D2 conducts, and the high-level control signal passes through the second diode D2 and the seventeenth resistor R17 to the ninth triode Q9, and makes the ninth triode Q9 conduct, pulling down the level of the second electrode to a low level. At the same time, the high-level signal makes the sixth triode Q6 conduct through the first diode D1 and the ninth resistor R9, pulling down the sixth triode electrode. At this time, both the second electrode and the third electrode are at a low level. At this time, it can be regarded that the second electrode NQ and the third electrode WQ are the negative poles of the ion introduction function. Moreover, at this time, the high level output by the P0.7 pin of the main control chip U1 also makes the first triode Q1 conduct, pulling down the base level of the second triode Q2, making the second triode Q2 conduct. At this time, the first electrode ION is the positive pole of the ion introduction function. If the second electrode NQ and the third electrode WQ are in contact with the face, a loop is formed between the second electrode NQ and the third electrode WQ, the face, and the user's hand and the first electrode ION. At this time, it is the negative ion introduction function, which can be used for skin care product introduction and can promote the effective introduction of cosmetics into the skin basal layer. At the same time, the P0.6 pin of the main control chip U1 outputs a low-level signal, and the P0.4 pin outputs a high-level signal, respectively making the thirteenth triode Q10 and the first MOS transistor Q12 conduct. At this time, the other end 2 of the semiconductor refrigeration sheet 41 is at a high level. At the same time, the eleventh triode Q1 and the third MOS transistor Q14 are cut off, and the high-level signal output by the first boost chip U2 makes the fourth MOS transistor Q15 conduct, making one end 1 of the semiconductor refrigeration sheet 41 at a low level. At this time, the temperature of the surface of the semiconductor refrigeration sheet 41 in contact with the electrode rises for heating, and the electrode in contact with it generates heat for hot compress. Through hot compress, the pores are expanded and the local blood circulation of the skin is improved, which can assist the introduction to further improve the skin care effect. Since the refrigeration and heating principle of the semiconductor refrigeration sheet is a prior art, it will not be described in detail here.

[0059] When it is necessary to switch the working mode, press the first control key S1 once briefly to enter the ion export function, which is mainly used for skin cleansing. When the ion beauty device works in the ion export function, the P0.7 pin of the main control chip U1 outputs a low level, and the P3.6 pin outputs a high level. The high-level signal makes the third triode Q3 conduct through the eighth diode D8 and the fourth resistor R4, making the first electrode ION at a low level. At the same time, the high-level signal makes the seventh triode Q7 and the eighth triode Q8 conduct through the seventh diode D7 and the twelfth resistor R12. At this time, the second electrode N is at a high level, and the high-level signal makes the fourth triode Q4 conduct through the eighth diode D8 and the sixth resistor R6, thereby making the fifth triode Q5 conduct. At this time, the third electrode WQ is at a high level. If the second electrode NQ and the third electrode WQ are in contact with the face, a loop is also formed among the second electrode NQ, the third electrode WQ, the face, and the user's hand and the first electrode ION. At this time, it is the positive ion export function, which can be used for skin cleansing. At the same time, the P0.6 pin of the main control chip U1 outputs a low-level signal, and the P0.4 pin outputs a high-level signal, respectively making the thirteenth triode Q10 and the first MOS transistor Q12 conduct. At this time, the other end 2 of the semiconductor refrigeration sheet 41 is at a high level. At the same time, the eleventh triode Q1 and the third MOS transistor Q14 are cut off, and the high-level signal output by the first boost chip U2 makes the fourth MOS transistor Q15 conduct, making one end 1 of the semiconductor refrigeration sheet 41 at a low level. At this time, the temperature of the surface of the semiconductor refrigeration sheet 41 in contact with the electrode rises to generate heat, and the electrode in contact with it generates heat for hot compress. The pores are expanded through the hot compress, and in cooperation with the positive ion export, deep cleansing of the skin is achieved.

[0060] In the ion import / export working mode, the control signal of the first frequency is output from the P0.3 pin of the main control chip U1 to the FB pin of the second boost chip U3. The second boost chip U3 performs boost processing to boost the 5V voltage to more than 10V to supply power to the ion unit 12, the EMS and ion multiplexing unit 13. If the user presses the second control key S2, the gear of the ion signal can be increased. At this time, the voltage output from the SW pin of the second boost chip U3 will increase by one gear, for example, increase by 1V. During ion import (or export), since the electrode contacts the human body to form a loop, the current generates a voltage drop through the ground loop resistor RD, and after being filtered by the amplification and filtering unit to remove the glitch signal and amplified, it is fed back to the P3.5 pin of the main control chip U1. The main control chip U1 identifies the skin type of the human body according to the voltage drop of the ground loop resistor RD and outputs the corresponding control signal to disconnect the electronic switch of the corresponding current-limiting resistor RL in the constant current switch unit 32, so that the current-limiting resistor RL of this path is connected. The current of the ion unit is changed by the current-limiting resistor RL, and the other electronic switches are closed to short-circuit the corresponding current-limiting resistors RL, so as to adjust the ion current intensity (i.e., the current value) of the output generation module 10, so that the intensity of the ion signal output to the skin adapts to the skin type of the user. This automatic adjustment of the output current improves the penetration effect of skin care products during ion import and can also increase the cleaning effect during ion export.

[0061] When it is necessary to switch the working mode again, short-press the first control key S1 again to enter the EMS microcurrent function, which is mainly used to generate microcurrent to act on the skin for massage. When the ion beauty instrument works in the EMS function mode, the P0.5 pin of the main control chip U1 outputs a high level and the P2.3 pin outputs a low level. At this time, the fourth triode Q4 and the ninth triode Q9 are cut off. The high-level signal makes the seventh triode and the eighth triode Q8 conduct through the twelfth resistor R12. Since the ninth triode Q9 is in the cut-off state, the second electrode NQ is at a high level at this time. At the same time, the high-level signal makes the sixth triode Q6 conduct through the ninth resistor R9 to pull down the level of the third electrode WQ, forming positive and negative EMS signals for microcurrent massage of the skin. Of course, when the P0.5 pin of the main control chip U1 outputs a low level and the P2.3 pin outputs a high level, the second electrode NQ and the third electrode WQ can also output negative and positive EMS signals to the skin. In the EMS microcurrent mode, when the second control key S2 is pressed, the output voltage of the SW pin of the second boost chip U3 is increased by one gear, and the drive signal of the corresponding voltage is output to adjust the intensity of the EMS signal.

[0062] When it is necessary to switch the working mode again, such as switching to the refrigeration mode, the first control key S1 can be short-pressed again. At this time, the main control chip U1 outputs a high-level signal at the P0.6 pin and a low-level signal at the P0.4 pin, respectively, to turn on the eleventh triode Q11 and the second MOS transistor Q13. At this time, one end 1 of the semiconductor refrigeration sheet 41 is at a high level. At the same time, the thirteenth triode Q10 and the first MOS transistor Q12 are cut off, and the high-level signal output by the first boost chip U2 turns on the third MOS transistor Q14, making the other end 2 of the semiconductor refrigeration sheet 41 at a low level, reducing the temperature of the surface of the semiconductor refrigeration sheet 41 in contact with the electrode for refrigeration, thereby reducing the temperature of the electrodes (i.e., the first and second electrodes NQ and WQ) on the beauty instrument head for cold compress.

[0063] It should be noted that the above-mentioned electronic components such as the main control chip, boost chip, triode, and MOS transistor can also be replaced by other electronic devices with the same function. For example, the NPN triode can also be replaced by an N-channel MOS transistor. The present invention does not limit this.

[0064] In summary, the present invention obtains the impedance of the skin in real time through the detection module and feeds it back to the control module. That is, the control module can control the output generation module to output the ion signal of the corresponding current according to the skin of different skin types, making the intensity of the ion signal match the skin impedance, achieving constant current control of the load circuit, and meeting the requirements of ion introduction by automatically adjusting the ion current to ensure the stability of the current when introducing different human body impedances, that is, ensuring the stability of the introduction effect, so as to meet the requirements of the introduction and penetration effect when the ion signal acts on different skins.

[0065] Moreover, the EMS and ion multiplexing unit are both involved in the work in the ion mode and the EMS microcurrent mode, saving multiple switching tubes and resistors, simplifying the circuit structure of the ion beauty instrument, and reducing the product cost. In addition, the present invention also has functions such as cold compress and hot compress, enriching the functions of the ion beauty instrument.

[0066] It can be understood that for those of ordinary skill in the art, equivalent substitutions or changes can be made according to the technical solutions and the inventive concept of the present invention, and all such changes or substitutions should fall within the protection scope of the appended claims of the present invention.

Claims

1. An ionic beauty device, characterized in that, It includes an output generation module, a detection module, a heating and cooling module, and a control module. The detection module obtains the impedance of the skin in real time and feeds it back to the control module. The control module causes the output generation module to output an ionic signal with a corresponding current to the electrode of the ionic beauty device according to the impedance, and at the same time causes the heating and cooling module to generate heat to heat the electrode.

2. The ionic beauty device according to claim 1, wherein The control module includes a main control unit and at least two constant current switch units. The main control unit controls the corresponding constant current switch unit to conduct according to the impedance, so that the output generation module outputs an ionic signal with a corresponding current.

3. The ionic beauty device according to claim 2, wherein The output generation module includes an EMS unit, an ion unit, and an EMS and ion multiplexing unit. The control module controls the ion unit and the EMS and ion multiplexing unit to generate positive and negative ionic signals with corresponding currents and output them to at least one electrode respectively; or the control module controls the EMS unit and the EMS and ion multiplexing unit to generate positive and negative EMS pulse signals with corresponding currents and output them to an electrode respectively.

4. The ionic beauty device according to claim 3, wherein, The ion unit includes a first triode, a second triode, a third triode, a first resistor, a second resistor, a third resistor, a fourth resistor, and a fifth resistor. The base of the first triode is connected to the control module through the first resistor. The emitter of the first triode is grounded. The collector of the first triode is connected to the base of the second triode and one end of the third resistor through the second resistor. The emitter of the second triode is connected to the other end of the third resistor. The collector of the second triode is connected to an electrode and the collector of the third triode. The emitter of the third triode is connected to the detection module. The base of the third triode is connected to the control module through the fourth resistor and is also grounded through the fifth resistor.

5. The ionic beauty device according to claim 4, characterized in that, The EMS unit, the EMS and ion multiplexing unit are the same as the ion unit. The EMS unit, the EMS and ion multiplexing unit are each connected to an electrode. When the output generation module outputs an ionic signal, the electrodes connected to the EMS unit and the EMS and ion multiplexing unit serve as the positive or negative poles of the ionic signal, and the electrode connected to the ion unit serves as the negative or positive pole of the ionic signal; when the output generation module outputs an EMS pulse signal, the electrode connected to the EMS unit serves as the positive or negative pole of the EMS pulse signal, and the electrode connected to the EMS and ion multiplexing unit serves as the negative or positive pole of the EMS pulse signal.

6. The ionic beauty device according to claim 5, wherein The output generation module further includes an isolation unit for isolating the EMS function from the ion function. The isolation unit is connected to the control module, the EMS unit, the ion unit, and the EMS and ion multiplexing unit.

7. The ionic beauty instrument according to claim 6, characterized in that, The isolation unit includes a first diode, a second diode, a third diode, a fourth diode, a fifth diode, a sixth diode, a seventh diode, and an eighth diode. The anodes of the first diode and the second diode are connected to the control module and one end of the first resistor. The cathode of the first diode is connected to the EMS and ion multiplexing unit and the cathode of the third diode. The cathode of the second diode is connected to the EMS unit and the cathode of the fourth diode. The anode of the third diode is connected to the control module and the anode of the fifth diode. The anode of the fourth diode is connected to the control module and the anode of the sixth diode. The cathode of the fifth diode is connected to the EMS unit and the cathode of the seventh diode. The cathode of the sixth diode is connected to the EMS and ion multiplexing unit and the cathode of the eighth diode. The anode of the seventh diode is connected to the control module, the anode of the eighth diode, and one end of the fourth resistor.

8. The ionic beauty device according to claim 5, characterized in that, The detection module includes a ground loop resistance and an amplification and filtering unit. One end of the ground loop resistance is connected to the emitter of the third triode and is also connected to the control module through the amplification and filtering unit. The other end of the ground loop resistance is grounded. The constant current switch unit includes a current limiting resistor and an electronic switch for connecting the current limiting resistor. One end of the current limiting resistor is connected to the boost unit of the output generation module. The other end of the current limiting resistor is connected to the EMS unit, the ion unit, and the EMS and ion multiplexing unit. The electronic switch is connected in parallel with the current limiting resistor, and the control end of the electronic switch is connected to the main control unit. The resistance values of the current limiting resistors of each constant current switch unit are different.

9. The ionic beauty device according to claim 1, wherein The heating and cooling module includes a thermoelectric cooler and a heating and cooling control unit. The thermoelectric cooler is connected to the control module through the heating and cooling control unit, and the thermoelectric cooler is in close contact with the electrode of the ion beauty instrument head.

10. The ionic beauty device according to claim 2, characterized in that, The control module further includes a manipulation unit. The manipulation unit receives a manipulation instruction and feeds it back to the main control unit. The main control unit causes the output generation module to perform power on / off, mode switching, or gear switching according to the manipulation instruction.

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