Micro-current control circuit of skin care equipment and skin care equipment

Abstract

The utility model discloses a micro-current control circuit of a skin care device and the skin care device, the skin care device comprises an even number of electrodes to form an electrode pair to output micro-current; the power circuit is used for supplying power; the control signal circuit is used for outputting a control signal, the micro-current generating circuit is used for generating micro-current, and the micro-current generating circuit is provided with a positive output end and a negative output end; the number of the switch control units is greater than or equal to that of the electrodes, first input ends of the at least four switch control units are respectively connected with the power supply circuit, and second input ends are respectively connected with the control signal circuit; the third input ends of half of the at least four switch control units are connected with the positive output end of the micro-current generation circuit, and the third input ends of the other half of the at least four switch control units are connected with the negative output end of the micro-current generation circuit. The first output end of each switch control unit is connected to one electrode.

Description

TECHNICAL FIELD

[0001] The utility model relates to skin care equipment field especially, and it is a kind of skin care equipment's micro-current control circuit and the skin care equipment with the micro-current control circuit of having it. BACKGROUND

[0002] The related art provides a kind of beauty instrument, is equipped with multiple electrodes for outputting micro-current.The beauty instrument works, and all electrodes work simultaneously.Due to the positive polarity of multiple electrodes, negative polarity is fixed, and the electrode that mutually pairs is also fixed, so that the path of current flow is also fixed.It is generally recommended that user manually moves the way of beauty instrument to adjust the path of current flow, to obtain preferable beauty massage effect.

[0003] However, the beauty instrument of the above-mentioned related art, in specific application, still has the following shortcomings: only rely on the way of user manually moving beauty instrument to adjust the path of current flow, it is difficult to guarantee the uniformity of current flow, and frequent manual operation can also reduce user experience. UTILITY MODEL CONTENT

[0004] The utility model first aspect aims at providing a kind of skin care equipment, it is aimed at solving the technical problem that the way of manually moving beauty instrument adjusts the path of current flow, it is difficult to guarantee the uniformity of current flow.

[0005] In order to realize the above-mentioned purpose, the technical scheme provided by the utility model first aspect is:

[0006] At least four electrodes, the number of electrode is even electrode, and the at least four electrodes are used to form working electrode pair with two electrodes to output micro-current;

[0007] Power supply circuit, the power supply circuit is used to power supply;

[0008] Control signal circuit, the control signal circuit is used to output control signal;

[0009] Micro-current generating circuit, the micro-current generating circuit is used to generate micro-current, and the micro-current generating circuit forms positive output end and negative output end;

[0010] at least four switch control units, the number of the switch control units being greater than or equal to the number of the electrodes, and each of the switch control units having a first input end, a second input end, a third input end and a first output end, the first input ends of the at least four switch control units being connected to the power supply circuit respectively, the second input ends of the at least four switch control units being connected to the control signal circuit respectively, the third input ends of half of the number of the switch control units being connected to the positive output end of the micro-current generating circuit respectively, the third input ends of the other half of the number of the switch control units being connected to the negative output end of the micro-current generating circuit respectively, and the first output end of each of the switch control units being connected to one of the electrodes.

[0011] In some embodiments, the number of the electrodes is an integer multiple of four, and the ratio of the number of the switch control units to the number of the electrodes is 3:2, wherein each of the electrodes in one half of the number of the electrodes is connected to the first output end of a single one of the switch control units, and each of the electrodes in the other half of the number of the electrodes is connected to the first output ends of two of the switch control units.

[0012] In some embodiments, the number of the electrodes is an integer multiple of four, and the ratio of the number of the switch control units to the number of the electrodes is 3:2, wherein each of the electrodes in one half of the number of the electrodes is connected to the first output end of a single one of the switch control units, and each of the electrodes in the other half of the number of the electrodes is connected to the first output ends of two of the switch control units.

[0013] In some embodiments, the at least four electrodes are distributed along the circumference of the cosmetic head of the skin care device, one of the two electrodes distributed on opposite sides along the circumference is connected to the first output end of a single one of the switch control units, and the other is connected to the first output ends of two of the switch control units.

[0014] In some embodiments, the number of the electrodes is four, and the number of the switch control units is six; or the number of the electrodes is eight, and the number of the switch control units is twelve.

[0015] Or, the number of the electrodes is twelve, and the number of the switch control units is eighteen.

[0016] In some embodiments, the number of the electrodes is not an integer multiple of four, and the number of the switch control units is equal to the number of the electrodes, and each of the electrodes is connected to the first output end of a single one of the switch control units.

[0017] The third input end of one half of the switch control units is connected with the positive output end of the micro-current generating circuit, and the third input end of the other half of the switch control units is connected with the negative output end of the micro-current generating circuit.

[0018] In some embodiments, the at least four electrodes are distributed along the circumference of the cosmetic head of the skin care device, one of the two electrodes adjacent in the circumference is connected to the positive output end of the micro-current generating circuit through the switch control unit, and the other is connected to the negative output end of the micro-current generating circuit through the switch control unit.

[0019] In some embodiments, the number of electrodes is six, and the number of switch control units is six; or the number of electrodes is ten, and the number of switch control units is ten.

[0020] Or, the number of electrodes is fourteen, and the number of switch control units is fourteen.

[0021] In some embodiments, the switch control unit is an optocoupler, and the first input end, the second input end, the third input end and the first output end are four pins of the optocoupler.

[0022] In some embodiments, the control signal circuit includes a control chip and a triode, and the triode is connected between the control chip and the second input end of the switch control unit.

[0023] And / or, the power supply circuit includes a power supply and a capacitor, one end of the capacitor is connected with the power supply, the other end of the capacitor is grounded, and the first input end of the switch control unit is connected between the power supply and the capacitor.

[0024] The second aspect of the utility model aims at providing a skin care device, which comprises:

[0025] A shell, one end of the shell is formed with a cosmetic head;

[0026] The micro-current control circuit of the skin care device as in the foregoing embodiments, each electrode is at least partially exposed outside the cosmetic head for outputting micro-current to the skin.

[0027] An optical assembly for outputting near-infrared light to the skin through the cosmetic head.

[0028] The technical scheme of the utility model provides with even number of electrodes and switch control units of equal or greater number, forms working pair between two electrodes, and realizes dynamic switching of micro current through accurate control of the switch control unit, the micro current generating circuit has positive and negative output terminals, and is connected with the switch control unit, one half of the control units is connected to the positive output terminal, and the other half is connected to the negative output terminal, in this way, different electrodes can be controlled to work through the switch control unit, so that different electrodes are paired to work, thereby forming alternating current path, in this way, not only the uniform distribution of current in the beauty area is enhanced, and the stimulation of the over-concentrated area is reduced, but also the frequency of manual movement of the beauty instrument by the user is reduced, and the experience of the user is improved. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained from the structures shown in the drawings without creative labor for those skilled in the art.

[0030] Figure 1 The module electric connection schematic diagram of the skin care equipment in the embodiment of the utility model is shown;

[0031] Figure 2 The module electric connection schematic diagram of the skin care equipment in another embodiment of the utility model is shown;

[0032] Figure 3 The module electric connection schematic diagram of the skin care equipment in the embodiment of the utility model is shown;

[0033] Figure 4 The structure schematic diagram of the skin care equipment in the embodiment of the utility model is shown;

[0034] Figure 5 The circuit diagram of the micro current control circuit of the skin care equipment in the embodiment of the utility model is shown.

[0035] EXPLANATION OF DRAWINGS:

[0036] 100, electrode; 200, power supply circuit; 300, control signal circuit; 400, micro current generating circuit; 401, positive output terminal; 402, negative output terminal; 500, switch control unit; 501, first input terminal; 502, second input terminal; 503, third input terminal; 501a, first output terminal; 11, beauty head; 33, optical assembly; 21, first electrode; 22, second electrode; 23, third electrode; 24, fourth electrode; 600, skin care equipment. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0038] The skin care device provided in the embodiment is mainly used for skin care, and the skin care can be beauty or treatment. The skin can be the skin of a human body part or the skin of an animal. The skin of the human body part can be the skin of a face, a hand, a leg, an abdomen or other parts of the human body.

[0039] Referring to Figure 1 , Figure 1 A module electric connection diagram of the skin care device in the embodiment of the present application is shown.

[0040] The embodiment of the present application provides a micro-current control circuit of a skin care device, and the micro-current control circuit of the skin care device comprises:

[0041] At least four electrodes 100, the number of the electrodes 100 is an even number of electrodes 100, and the at least four electrodes 100 are used to form a working electrode pair with two electrodes 100 to output a micro-current;

[0042] A power supply circuit 200, the power supply circuit 200 is used for power supply;

[0043] A control signal circuit 300, the control signal circuit 300 is used for outputting a control signal;

[0044] A micro-current generating circuit 400, the micro-current generating circuit 400 is used for generating a micro-current, and the micro-current generating circuit 400 is formed with a positive output end 401 and a negative output end 402;

[0045] At least four switch control units 500, the number of switch control units 500 is greater than or equal to the number of electrodes 100, and each switch control unit 500 has a first input end 501, a second input end 502, a third input end 503 and a first output end 501a, the first input end 501 of the at least four switch control units 500 is connected with the power supply circuit 200 respectively, the second input end 502 of the at least four switch control units 500 is connected with the control signal circuit 300 respectively, the third input end 503 of half of the at least four switch control units 500 is connected with the positive output end 401 of the micro-current generating circuit 400 respectively, the third input end 503 of the other half of the at least four switch control units 500 is connected with the negative output end 402 of the micro-current generating circuit 400 respectively, and the first output end 501a of each switch control unit 500 is connected to an electrode 100.

[0046] In this embodiment, the power supply circuit 200 can adopt a direct current power supply, for example, the power supply circuit 200 adopts a 5V DC power supply. The control signal circuit 300 is mainly used for outputting control signals, specifically, outputting control signals to control the working state of the at least four switch control units 500, for example, controlling the conduction and closing of the four switch control units 500. Specifically, the control signal circuit 300 in this embodiment can be realized by using a single-chip microcomputer, for example, a commonly used model such as STM32, Arduino, etc. These single-chip microcomputers can provide sufficient I / O pins and control logic to realize the required control signal output. And TI's TMS320 series, suitable for applications requiring higher processing power.

[0047] The main function of the micro-current generating circuit 400 is to generate micro-current and output it to the electrode 100. This circuit needs to be able to stably generate micro-current of a specific frequency and intensity to ensure the skin care effect. The device it can use can be a micro-current generator module, that is, a ready-made micro-current generator module on the market, which can be directly used in the design.

[0048] The main function of the switch control unit 500 is to control the conduction and closing between the micro-current generating circuit 400 and the electrode 100. By receiving the signal of the control signal circuit 300, these units can realize the switching of micro-current between different electrodes 100. Its specific device can use an optocoupler (Optocoupler), such as PC817, which can realize the isolation and switch control of the circuit. For example, MOSFET, such as IRF540, can also be used for efficient switch control.

[0049] For the optical coupler, the main structure is to assemble the light emitting device and the light receiving device in a closed tube shell, and then use the pin of the light emitting device as the input end, and use the pin of the light receiving device as the output end. When an electrical signal is applied to the input end, the light emitting device emits light. In this way, the light receiving device generates a photoelectric current under light due to the photosensitive effect and is output by the output end. Thus, the electrical signal transmission with "light" as the medium is realized, and the input and output ends of the device are electrically insulated. Thus, a new type of semiconductor optoelectronic device is formed which transmits signals through light in the middle. The packaging form of the switch control unit 500 is generally of three types: tube shape, dual-in-line type and optical fiber connection. It has the advantages of small size, long service life, wide operating temperature range, strong anti-interference performance, no contact, and complete electrical isolation between input and output.

[0050] In the working process, taking the four electrodes 100 as an example, the four electrodes 100 can be distributed in sequence around a center, specifically, the four electrodes 100 form a ring or a rectangle, of course, other shapes are also possible. Two of the four electrodes 100 are connected to the negative output end 402 of the micro-current generating circuit 400, and the other two are connected to the positive output end 401 of the micro-current generating circuit 400. Taking the arrangement of the four electrodes 100 on the outer surface of the skin care device as an example, the first electrode 21, the second electrode 22, the third electrode 23, and the fourth electrode 24, the first electrode 21 is arranged opposite to the third electrode 23 on the Y axis, and the second electrode 22 is arranged opposite to the fourth electrode 24 on the X axis. Correspondingly, the at least four switch control units 500 are also correspondingly the first switch control unit 500, the second switch control unit 500, the third switch control unit 500, and the fourth switch control unit 500.

[0051] Among them, the first electrode 21 and the third electrode 23 are electrically connected to the positive output end 401 of the micro-current generating circuit 400 through the corresponding switch control unit 500, and the second electrode 22 and the fourth electrode 24 are electrically connected to the negative output end 402 of the micro-current generating circuit 400 through the corresponding switch control unit 500.

[0052] In the first working mode, when the device is in standby state, the user operates the skin care device 600, for example, presses the switch corresponding to the gear, and the control signal circuit 300 detects the signal and controls the corresponding switch control unit 500 to work according to the preset program. For example, the preset program is to control two electrodes in the four electrodes to form a loop alternately. Specifically, in the first time period, the control signal circuit 300 controls the corresponding switch control unit 500 to work, so that the first electrode 21 outputs a micro-current, at this time, the first electrode 21 (positive) and the second electrode 22 (negative) form a loop; in the second time period, the control signal circuit 300 controls the corresponding switch control unit 500 to turn off the micro-current generating circuit 400 and the conduction of the first electrode 21, so that the first electrode 21 stops outputting the micro-current, and controls the third electrode 23 to output the micro-current, and the second electrode 22 is still negative, so that the second electrode 22 and the third electrode 23 form a loop; in the third time period, the third electrode 23 keeps outputting the micro-current, at this time, the first electrode 21 and the second electrode 22 are turned off, and the fourth electrode 24 is negative and turned on, and forms a loop with the third electrode 23; in the fourth time period, the fourth electrode 24 keeps being turned on and negative, the first electrode 21 is re-turned on and positive, outputs the current, and forms a loop with the fourth electrode 24. In this way, the adjustment of the current path of the electrode 100 is realized and acts on the human skin.

[0053] In the technical scheme of the embodiment, an even number of electrodes 100 and an equal number or more of switch control units 500 are provided, so that a working pair is formed between two electrodes 100, and the dynamic switching of the micro-current is realized through the accurate control of the switch control unit 500. The micro-current generating circuit 400 has positive and negative output ends 402, and is connected with the switch control unit 500, half of the control units are connected to the positive output end 401, and the other half are connected to the negative output end 402. In this way, different electrodes 100 can be controlled to work by the switch control unit 500, so that different electrodes 100 are paired to work, thereby forming a changed current path. In this way, not only the uniform distribution of the current in the beauty area is enhanced, the stimulation of the over-concentrated area is reduced, but also the comprehensiveness and depth of the care effect are improved.

[0054] It can be understood that one electrode 100 in the embodiment of the utility model should include a plurality of electrodes connected to the same switch control unit 500 and controlled by the same switch control unit 500, and the plurality of electrodes should be understood as one electrode 100 in the embodiment. That is, if a plurality of electrodes provided on the skin device for acting on the skin are connected to the same switch control unit 500 and controlled by the same switch control unit 500, the plurality of electrodes are one electrode 100 in the embodiment of the utility model.

[0055] Referring to Figure 2 , Figure 2The utility model discloses another embodiment of the module electric connection schematic diagram of skin care equipment.

[0056] In the embodiment, the number of electrodes 100 is an integer multiple of four, and the ratio of the number of switch control units 500 to the number of electrodes 100 is 3:2, wherein each electrode 100 in half the number of electrodes 100 is respectively connected to the first output end 501a of a single switch control unit 500, and each electrode 100 in the other half of the number of electrodes 100 is respectively connected to the first output end 501a of two switch control units 500.

[0057] Among the two switch control units 500 connected to the same electrode 100, the third input end 503 of one of the switch control units 500 is connected to the positive output end 401 of the micro-current generating circuit 400, and the third input end 503 of the other switch control unit 500 is connected to the negative output end 402 of the micro-current generating circuit 400.

[0058] In the embodiment, the ratio of the number of switch control units 500 to the number of electrodes 100 is 3:2, for example, the number of switch control units 500 is six, and the number of electrodes 100 is four. Specifically, the arrangement of the four electrodes 100 on the outer surface of the skin care equipment is that, in the Y-axis direction, the first electrode 21 and the third electrode 23 are arranged opposite to each other, and in the X-axis direction, the second electrode 22 and the fourth electrode 24 are arranged opposite to each other. The first electrode 21 is connected to the first output end 501a of two switch control units 500, one of the two switch control units 500 is connected to the positive output end 401 of the micro-current generating circuit 400, and the other is connected to the negative output end 402 of the positive output end 401.

[0059] The fourth electrode 24 is also connected to the first output end 501a of two switch control units 500, one of the two switch control units 500 is connected to the positive output end 401 of the micro-current generating circuit 400, and the other is connected to the negative output end 402 of the positive output end 401.

[0060] In the second working mode, since the first electrode 21 can be converted to negative, it can match with the opposite third electrode 23 to form a loop, and since the fourth electrode 24 can be converted to negative, it can match with the opposite second electrode 22 to form a loop, specifically, the first electrode 21 is connected to the first output end 501a of two switch control units 500.

[0061] In this embodiment, by connecting two switch control units 500 to the positive output end 401 and the negative output end 402 of the micro-current generating circuit 400 respectively, and making the first electrode 21 connect the output ends of the two switch control units 500 at the same time, the first electrode 21 can be switched between positive and negative. Similarly, by connecting another two switch control units 500 to the positive output end 401 and the negative output end 402 of the micro-current generating circuit 400 respectively, and making the fourth electrode 24 connect the output ends of the two switch control units 500 at the same time, the fourth electrode 24 can be switched between positive and negative.

[0062] In this embodiment, by connecting two switch control units 500 to the positive output end 401 and the negative output end 402 of the micro-current generating circuit 400 respectively, and making the first electrode 21 connect the output ends of the two switch control units 500 at the same time, the first electrode 21 can be switched between positive and negative. Similarly, by connecting another two switch control units 500 to the positive output end 401 and the negative output end 402 of the skin care device micro-current generating circuit 400 respectively, and making the fourth electrode 24 connect the output ends of the two switch control units 500 at the same time, the fourth electrode 24 can be switched between positive and negative. In this way, by enabling the first electrode 21 and the fourth electrode 24 to be switched between positive and negative currents, a cross-like "X" shaped current path can be achieved. This path can more evenly cover the care area on the basis of the rotating path, thereby enhancing the effect of the micro-current on the skin.

[0063] Referring to Figure 4 and Figure 5 , Figure 4 shows a structure schematic diagram of a skin care device in an embodiment of the utility model, Figure 5 shows a circuit diagram of a micro-current control circuit of a skin care device in an embodiment of the utility model.

[0064] In this embodiment, at least four electrodes 100 are distributed along the circumference of the beauty head 11 of the skin care device 600, one of the two electrodes 100 distributed on the opposite sides along the circumference is connected to the first output end 501a of a single switch control unit 500, and the other is connected to the first output end 501a of two switch control units 500.

[0065] In this embodiment, the four electrodes 100 are uniformly distributed along the circumference of the beauty head 11, forming a ring structure. These electrodes 100 are respectively marked as the first electrode 21, the second electrode 22, the third electrode 23 and the fourth electrode 24.

[0066] The first electrode 21 and the third electrode 23 are located at opposite positions on the Y axis, and the second electrode 22 and the fourth electrode 24 are located at opposite positions on the X axis. One of the two electrodes distributed on the opposite sides in the circumferential direction is connected to the first output end 501a of a single switch control unit 500, and the other is connected to the first output end 501a of two switch control units 500.

[0067] The specific connection mode is that the first electrode 21 and the fourth electrode 24 are connected to the first output end 501a of two switch control units 500. The second electrode 22 and the third electrode 23 are connected to the first output end 501a of one switch control unit 500.

[0068] In this embodiment, the switch control unit 500 is controlled to be turned on and turned off by the control signal circuit 300, so as to realize the switching of the current between different electrodes 100. Since the first electrode 21 and the fourth electrode 24 are connected to two switch control units 500 respectively, they can be switched between positive and negative currents, thereby realizing the cross-shaped current path.

[0069] For example, in the first working mode, the first electrode 21 and the second electrode 22 form a positive and negative current path in the first time period; in the second time period, the second electrode 22 and the third electrode 23 form a positive and negative current path, in the third time period, the third electrode 23 and the fourth electrode 24 form a positive and negative current path, and in the fourth time period, the fourth electrode 24 and the first electrode 21 form a positive and negative current path. Through such switching, the rotating effect of the current on the skin is realized.

[0070] In the second working mode, the first electrode 21 and the third electrode 23 form a loop in the first time period, and the second electrode 22 and the fourth electrode 24 form a loop in the second time period.

[0071] In this embodiment, by arranging at least four electrodes 100 to be spaced apart along the circumference of the beauty head 11 of the skin care device 600, one of the two electrodes 100 distributed on the opposite sides in the circumferential direction is connected to the first output end 501a of a single switch control unit 500, and the other is connected to the first output end 501a of two switch control units 500, the rotating and cross output of the current path can be realized, and the care area can be more uniformly covered, thereby enhancing the effect of the micro-current on the skin.

[0072] In some embodiments, the number of electrodes 100 is four, and the number of switch control units 500 is six; or the number of electrodes 100 is eight, and the number of switch control units 500 is twelve;

[0073] Or, the number of electrodes 100 is twelve, and the number of switch control units 500 is eighteen.

[0074] The main reason for setting the ratio of the number of electrodes 100 to the number of switch control units 500 to 2:3 in this embodiment is to achieve more flexible and efficient current switching control. By increasing the number of switch control units 500, part of the electrodes 100 can be turned on and switched by multiple control units, thereby realizing a cross-shaped current path and enhancing the care effect.

[0075] Specifically, the number of electrodes 100 is four, and the number of switch control units 500 is six, which is suitable for small portable skin care device 600, and is suitable for small area skin care such as face and hand. That is, the four electrodes 100 are evenly distributed around the beauty head 11, and the six switch control units 500 ensure that two of the electrodes 100 can be flexibly switched between positive and negative currents, realizing a cross-rotating current path.

[0076] When the number of electrodes 100 is eight and the number of switch control units 500 is twelve, it is suitable for medium-sized skin care device 600, and is suitable for medium area skin care such as face, neck, and arm. That is, the eight electrodes 100 are evenly distributed along the circumference of the beauty head 11, and the twelve switch control units 500 provide higher flexibility and more precise current control, ensuring that the current can more evenly cover the care area.

[0077] When the number of electrodes 100 is twelve and the number of switch control units 500 is eighteen, it is suitable for large professional skin care device 600, and is suitable for whole body care or large skin treatment project. Twelve electrodes 100 are more densely distributed along the circumference of the beauty head 11, and eighteen switch control units 500 provide the highest flexibility and precision, ensuring that the current is evenly distributed and alternately acts on a larger area of skin, improving the overall care effect.

[0078] Referring to Figure 3 In this embodiment, the number of electrodes 100 is not an integer multiple of four, and the number of switch control units 500 is equal to the number of electrodes 100, and each electrode 100 is connected to the first output end 501a of a single switch control unit 500.

[0079] Half of the third input ends 503 of the switch control units 500 are connected to the positive output end 401 of the micro-current generating circuit 400, and the other half of the third input ends 503 of the switch control units 500 are connected to the negative output end 402 of the micro-current generating circuit 400.

[0080] In the embodiment, the number of electrodes 100 is a non-integer multiple of four, for example, six electrodes 100, and the number of switch control units 500 is equal to the number of electrodes 100, also six. Since the number of electrodes 100 is a non-integer multiple of four, and the number of switch control units 500 is equal to the number of electrodes 100, the switching of different current paths can be flexibly realized, and the uniform action of the micro-current on the entire care area is ensured. Each electrode 100 is connected to a single switch control unit 500, and through the control of the control signal circuit 300, uniform current distribution is realized, and the care effect is improved.

[0081] In the embodiment, through reasonable connection of electrodes 100 and switch control units 500 and dynamic current switching, the long-time action of the current on a single electrode 100 can be effectively avoided, the single-point overstimulation of the skin is reduced, and the comfort and safety of the device use are improved.

[0082] Referring to Figure 4 In the embodiment, at least four electrodes 100 are distributed along the circumference of the beauty head 11 of the skin care device 600, and one of the two electrodes 100 adjacent in the circumference is connected to the positive output end 401 of the micro-current generating circuit 400 through the switch control unit 500, and the other is connected to the negative output end 402 of the micro-current generating circuit 400 through the switch control unit 500.

[0083] In the embodiment, at least four electrodes 100 are distributed along the circumference of the beauty head 11 of the skin care device 600, and one of the two electrodes 100 adjacent in the circumference is connected to the positive output end 401 of the micro-current generating circuit 400 through the switch control unit 500, and the other is connected to the negative output end 402 of the micro-current generating circuit 400 through the switch control unit 500.

[0084] The specific connection mode can be that the first electrode 21 is connected to the positive output end 401 of the micro-current generating circuit 400 through the switch control unit 500. The second electrode 22 is connected to the negative output end 402 of the micro-current generating circuit 400 through the switch control unit 500. The third electrode 23 is connected to the positive output end 401 of the micro-current generating circuit 400 through the switch control unit 500. The fourth electrode 24 is connected to the negative output end 402 of the micro-current generating circuit 400 through the switch control unit 500.

[0085] Each switch control unit 500 has a first input end 501, a second input end 502, a third input end 503, and a first output end 501a.

[0086] The first input end 501 of all switch control units 500 is connected to the power supply circuit 200, the second input end 502 is connected to the control signal circuit 300, the third input end 503 is respectively connected to the positive output end 401 or the negative output end 402 of the micro-current generating circuit 400, and the first output end 501a is respectively connected to the corresponding electrode 100.

[0087] In the embodiment, the switch control units 500 are controlled to be turned on or turned off by the control signal circuit 300, so as to realize the switching of the current between different electrodes 100. This enables the micro-current to be dynamically switched between the electrodes 100, forms a cross current path, and provides a uniform skin care effect.

[0088] In the first time period, the control signal circuit 300 outputs a signal, so that the corresponding switch control unit 500 is turned on, so that the first electrode 21 is connected to the positive output end 401 of the micro-current generating circuit 400, and the first electrode 21 is connected to the negative output end 402 of the micro-current generating circuit 400, forming a micro-current loop.

[0089] In the second time period, the control signal circuit 300 outputs a signal, so that the switch control unit 500 connected to the first electrode 21 is turned off, and the switch control unit 500 connected to the third electrode 23 is turned on.

[0090] At this time, the third electrode 23 is connected to the positive output end 401 of the micro-current generating circuit 400, and the fourth electrode 24 is connected to the negative output end 402 of the micro-current generating circuit 400, forming a micro-current loop. This cycle realizes the rotation effect of the current on the skin.

[0091] In some embodiments, in addition to the number of electrodes 100 being four and the number of switch control units 500 being six in the foregoing embodiment, or the number of electrodes 100 being eight and the number of switch control units 500 being twelve, or the number of electrodes 100 being twelve and the number of switch control units 500 being eighteen, i.e., the setting mode of 3:2, the number of electrodes 100 is six and the number of switch control units 500 is six.

[0092] Alternatively, the number of electrodes 100 is ten and the number of switch control units 500 is ten.

[0093] Alternatively, the number of electrodes 100 is fourteen and the number of switch control units 500 is fourteen.

[0094] In this embodiment, multiple electrodes 100 are also evenly distributed around the beauty head 11 of the device in sequence to form a ring or other symmetrical shape to support uniform distribution of current and effective treatment. Each switch control unit 500 in this embodiment is directly connected to the corresponding electrode 100 and receives input from the positive and negative output terminals 402 of the micro-current generating circuit 400, respectively. The corresponding number of switch control units 500 are provided to ensure that the electrodes 100 connected to it can be independently controlled, allowing the current to be switched in sequence. The micro-current generating circuit 400 is designed with a positive output terminal 401 and a negative output terminal 402 to support the bidirectional flow of current, which is crucial for forming a rotating current path.

[0095] For example, in a configuration of six electrodes 100 and six switch control units 500, the switch control units 500 can be activated in the order of the six electrodes 100 to make the current path rotate clockwise and / or counterclockwise relative to the beauty head 11 of the device. Similarly, in a configuration of ten electrodes 100 and ten switch control units 500, or fourteen electrodes 100 and fourteen switch control units 500, the principle of current rotation path is the same.

[0096] In this embodiment, the configuration of the rotating current path optimizes the current distribution, improves the uniformity and effectiveness of the treatment, and reduces the risk of local overstimulation. By adjusting the rotation speed and mode of the current, customized treatment can be performed for different types of skin conditions, such as skin tightening and deep cleaning, etc. In addition, the rotating current technology enhances the versatility of the device, making it suitable for various use scenarios from personal beauty to professional treatment.

[0097] Referring to Figure 5 In this embodiment, the switch control unit 500 is an optocoupler, and the first input terminal 501, the second input terminal 502, the third input terminal 503, and the first output terminal 501a are four pins of the optocoupler.

[0098] In this embodiment, the switch unit is preferably an optocoupler, and the third input terminal 503 and the first output terminal 501a of the optocoupler can be connected to the electrode 100, the first input terminal 501 is connected to the positive electrode of the power supply, and the second input terminal 502 is connected to the control signal circuit 300. Specifically, the optocoupler is an electronic component that uses optical signals to achieve electrical isolation. It is usually composed of a light-emitting diode (LED) and a phototransistor (or a photodiode, a photogate). When the first input terminal 501 and the second input terminal 502 receive a control signal, the LED is lit and emits an optical signal. The optical signal is transmitted to the phototransistor through the internal transparent medium, making the phototransistor conductive, thereby forming a current path between the third input terminal 503 and the first output terminal 501a.

[0099] In this embodiment, the reason for using the optocoupler is that the optocoupler can effectively isolate the input signal and the output signal, and prevent high voltage or noise interference from being transmitted to the control circuit. In the signal transmission process, the electrical signal is transmitted through the optical signal, and the interference-free transmission of the control signal can be realized.

[0100] The specific device can use a common PC817 series optocoupler, which has high voltage isolation performance and is suitable for various electronic control circuits.

[0101] In this embodiment, the optocoupler is used to control the conduction and turn-off between the micro-current generating circuit 400 and the electrode 100. The specific connection mode is that the first input end 501 is connected to the power supply circuit 200 for receiving power supply. The second input end 502 is connected to the control signal circuit 300 for receiving the control signal. The third input end 503 is connected to the positive output end 401 or the negative output end 402 of the micro-current generating circuit 400, respectively. The first output end 501a is connected to the corresponding electrode 100.

[0102] Connection of the electrode 100 and the switch control unit 500:

[0103] In the configuration of six electrodes 100, six optocouplers correspond to six electrodes 100, specifically, the first electrode 21 is connected to the positive output end 401 through the corresponding switch control unit 500, and the second electrode 22 is connected to the negative output end 402 through the corresponding switch control unit 500. The third electrode 23 is connected to the positive output end 401 through the corresponding switch control unit 500, and the fourth switch unit is connected to the negative output end 402 through the corresponding switch control unit 500. The fifth electrode is connected to the positive output end 401 through the corresponding switch control unit 500, and the sixth switch control unit 500 is connected to the negative output end 402 through the corresponding switch control unit 500. In the configuration of ten and fourteen electrodes 100, similar connection modes keep each electrode 100 connected to the positive or negative output end 402 of the micro-current generating circuit 400 through the optocoupler.

[0104] In this embodiment, the optocoupler is used as the switch control unit 500, which can realize efficient electrical isolation between the input and the output, improve the anti-interference ability and safety of the circuit, and the optocoupler can quickly respond to the control signal to realize the dynamic switching of the micro-current between the electrodes 100, so that the current path can be rotated, and the uniformity and comprehensiveness of the skin care effect are improved.

[0105] Continue to refer to Figure 5 In this embodiment, the control signal circuit 300 includes a control chip and a transistor, and the transistor is connected between the control chip and the second input end 502 of the switch control unit 500.

[0106] And / or, the power supply circuit 200 includes a power supply and a capacitor, one end of the capacitor is connected with the power supply, the other end of the capacitor is grounded, and the first input end 501 of the switch control unit 500 is connected between the power supply and the capacitor.

[0107] In the embodiment, the control signal circuit 300 is mainly built by using a control chip and a triode, specifically, the triode can be an NPN triode, the output end of the control chip is connected with the base of the NPN triode for sending a high level signal.

[0108] The control chip sends a high level signal to the base of the triode to make the triode conduct. When the triode is turned on, the power supply input by the power supply circuit 200 passes through the first input end 501 and the second input end 502 of the photoelectric coupler, so that the light emitting diode inside the photoelectric coupler works. After the light emitting diode is lighted, the light signal excites the photoelectric coupler inside the light sensitive transistor to turn on, thereby forming a current path between the third input end 503 and the first output end 501a of the photoelectric coupler, and realizing the control of the switch control unit 500.

[0109] The power supply circuit 200 in the embodiment includes a power supply and a capacitor. One end of the capacitor is connected with the power supply, and the other end of the capacitor is grounded. The first input end 501 of the switch control unit 500 is connected between the power supply and the capacitor. When the power supply outputs, the capacitor can store charges to reduce the fluctuation of the power supply voltage and provide more stable voltage output. That is to say, the capacitor can provide more stable voltage to ensure that the switch control unit 500 and other circuit components work under stable voltage conditions, and improve the stability and reliability of the overall circuit.

[0110] Referring to Figure 4 , Figure 4 The embodiment of the utility model discloses a skin care equipment structure schematic diagram.

[0111] The utility model discloses further propose a kind of skin care equipment 600, the skin processing equipment includes shell and optical assembly 33, and the micro-current control circuit of the skin care equipment 600 of the aforementioned embodiment, the specific structure of the micro-current control circuit of the skin care equipment 600 can refer to above-mentioned embodiment, since the skin care equipment 600 of the present application adopts all technical solutions of the aforementioned embodiment, at least have the overall technical effect brought by the technical solution of above-mentioned embodiment, here will not be repeated one by one.Less, one end of shell is formed with cosmetic head 11;Each electrode 100 is at least partially exposed to cosmetic head 11, to be used to output micro-current to skin, optical assembly 33 is used to pass through cosmetic head 11 and output near-infrared light to skin.

[0112] In this embodiment, the shell provides the overall structural support and protection function of the device, ensuring the safety and stability of the internal components. Among them, one end of the shell is formed with a beauty head 11, which is used to install the electrode 100, and to contact the skin and conduct micro-current and optical signals.

[0113] The shell in this embodiment is designed to be ergonomic, easy for users to hold and operate, improving the comfort and convenience of use. The specific shape has many kinds, for example, the shell can adopt an oval shape, a streamline shape or an arc shape that conforms to the palm holding habit, to ensure a comfortable holding experience. As for the material of the shell, ABS plastic, silicone, aluminum alloy, etc. can be used to ensure the durability, lightness and slip resistance of the device.

[0114] The optical assembly 33 of this embodiment is mainly used for beautifying the human skin, and by outputting near-infrared light, it promotes the activation of deep skin cells and blood circulation, achieving the effects of whitening, tightening and anti-aging.

[0115] The device of the optical assembly 33 can adopt halogen lamp, high-efficiency near-infrared LED light source, etc., and can be equipped with a special optical lens to ensure uniform distribution and concentrated output of light, and to improve the lighting effect. In some embodiments, a heat dissipation device can also be configured to ensure temperature control of the optical assembly 33 during long-term operation. The control of the switching control unit 500 is realized.

[0116] In this embodiment, the micro-current control circuit rotates the micro-current between the electrodes 100 in a set order through precise control signals, realizing dynamic current path switching. This rotating current path can more evenly act on the skin, avoiding excessive stimulation of the current at a single point, and improving the overall care effect. At the same time, the near-infrared light output by the optical assembly 33 penetrates the beauty head 11 and acts on the deep cells of the skin, promoting blood circulation and cell metabolism. Specifically, the electrodes 100 of the beauty head 11 output a rotating micro-current path to stimulate the skin surface and deep cells. At the same time, the near-infrared light output by the optical assembly 33 acts on the skin, further promoting cell activation and blood circulation, and under the combined action, reducing the pigmentation of the skin, making the skin color uniform, and achieving the effect of whitening.

[0117] The above only describes the preferred embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent scheme transformation or direct / indirect application in other related technical fields within the scope of the present application is included in the patent protection scope of the present application.

Claims

1. A microcurrent control circuit for a skin care device, characterized by, The application relates to a skin care device, comprising: at least four electrodes, the number of the electrodes being an even number, and the at least four electrodes being used to form a working electrode pair with two electrodes to output a micro-current; a power supply circuit used for power supply; a control signal circuit used for outputting a control signal; a micro-current generating circuit used for generating a micro-current, and the micro-current generating circuit being formed with a positive output end and a negative output end; at least four switch control units, the number of the switch control units being greater than or equal to the number of the electrodes, and each of the switch control units having a first input end, a second input end, a third input end and a first output end, the first input ends of the at least four switch control units being connected with the power supply circuit respectively, the second input ends of the at least four switch control units being connected with the control signal circuit respectively, the third input ends of half of the number of the switch control units being connected with the positive output end of the micro-current generating circuit respectively, the third input ends of the other half of the number of the switch control units being connected with the negative output end of the micro-current generating circuit respectively, and the first output end of each of the switch control units being connected with one of the electrodes respectively.

2. The microcurrent control circuit for a skin care device of claim 1, wherein, The number of the electrodes is an integer multiple of four, and the ratio of the number of the switch control units to the number of the electrodes is 3:2, wherein each of the electrodes in one half of the number of the electrodes is connected with the first output end of a single switch control unit, and each of the electrodes in the other half of the number of the electrodes is connected with the first output ends of two switch control units. In the two switch control units connected with the same electrode, the third input end of one of the switch control units is connected with the positive output end of the micro-current generating circuit, and the third input end of the other switch control unit is connected with the negative output end of the micro-current generating circuit.

3. Microcurrent control circuit for a skin care device according to claim 2, characterized in that The at least four electrodes are distributed along the circumference of a cosmetic head of the skin care device, one of the two electrodes distributed on the opposite sides along the circumference is connected with the first output end of a single switch control unit, and the other is connected with the first output ends of two switch control units.

4. Microcurrent control circuit for a skin care device according to claim 2 or 3, characterized in that The number of the electrodes is four, and the number of the switch control units is six; or, The number of the electrodes is eight, and the number of the switch control units is twelve; or, The number of the electrodes is twelve, and the number of the switch control units is eighteen.

5. The microcurrent control circuit for a skin care device of claim 1, wherein, The number of the electrodes is a non-integer multiple of four, and the number of the switch control units is equal to the number of the electrodes, and each of the electrodes is connected with the first output end of a single switch control unit. The third input ends of one half of the number of the switch control units are connected with the positive output end of the micro-current generating circuit, and the third input ends of the other half of the number of the switch control units are connected with the negative output end of the micro-current generating circuit.

6. Microcurrent control circuit for a skin care device according to claim 5, characterized in that The at least four electrodes are distributed along the circumference of the cosmetic head of the skin care device, one of the two electrodes adjacent in the circumference is connected to the positive output end of the micro-current generating circuit through the switch control unit, and the other is connected to the negative output end of the micro-current generating circuit through the switch control unit.

7. Microcurrent control circuit for a skin care device according to claim 5 or 6, characterized in that The number of the electrodes is six, and the number of the switch control units is six; or, The number of the electrodes is ten, and the number of the switch control units is ten; or, The number of the electrodes is fourteen, and the number of the switch control units is fourteen.

8. Microcurrent control circuit for a skin care device according to any one of claims 1 to 3 or 5 or 6, characterized in that, The switch control unit is an optoelectronic coupler, and the first input end, the second input end, the third input end and the first output end are four pins of the optoelectronic coupler.

9. Microcurrent control circuit for a skin care device according to any one of claims 1 to 3 or 5 or 6, characterized in that, The control signal circuit comprises a control chip and a transistor, the transistor is connected between the control chip and the second input end of the switch control unit; and / or, The power supply circuit comprises a power supply and a capacitor, one end of the capacitor is connected with the power supply, the other end of the capacitor is grounded, and the first input end of the switch control unit is connected between the power supply and the capacitor.

10. A skin treatment device characterized by, It comprises: a housing, one end of the housing is formed with a cosmetic head; The micro-current control circuit of the skin care device according to any one of claims 1 to 9, each of the electrodes is at least partially exposed outside the cosmetic head for outputting micro-current to the skin; an optical assembly for outputting near-infrared light to the skin through the cosmetic head.

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