Portable beauty instrument and control circuit thereof

Abstract

The utility model relates to the field of circuit protection of beauty instruments, and provides a portable beauty instrument and a control circuit thereof. The control circuit of the portable beauty instrument comprises a power supply unit, a pulsed light trigger unit, a control unit and a near-infrared light trigger unit. The control unit is used for outputting the first direct current to the near-infrared light triggering unit and driving the signal to the pulse light triggering unit, so that the near-infrared light triggering unit can work according to the first direct current, and then near-infrared light is provided. Meanwhile, the pulsed light triggering unit can periodically trigger the pulsed light according to the driving signal on the basis of the output voltage of the second power supply branch. Under the condition that near-infrared light provided by the near-infrared light triggering unit acts on the surface layer of the skin, the pulsed light triggering unit can also be used for periodically triggering pulsed light to act on the deep layer of the skin, the illumination function of the beauty instrument is enriched, and the application range of the beauty instrument is widened.

Description

Technical Field

[0001] The utility model belongs to the field of beauty instruments, and in particular relates to a control circuit of a portable beauty instrument and the portable beauty instrument. Background Art

[0002] As one of the skin care tools, beauty instruments are simple to use, have low operating thresholds, and are easy to use, and are highly sought after by consumers. At present, there are many types of beauty instruments on the market. For example, contact electrode beauty instruments include radio frequency beauty instruments, microcurrent beauty instruments, etc. For example, light-based beauty instruments include LED beauty instruments, beauty instruments for providing near-infrared light (also known as milk light), etc. Here, traditional beauty instruments for providing near-infrared light can output near-infrared light to act on the surface of the skin, and use the light energy of near-infrared light to irradiate and maintain the skin.

[0003] However, conventional beauty devices for providing near-infrared light can only adjust the intensity of the near-infrared light provided by controlling the working voltage of the near-infrared light trigger unit, and have the problems of relatively simple functions and a small scope of application. Utility Model Content

[0004] The utility model aims to provide a control circuit of a portable beauty instrument and a portable beauty instrument, aiming to solve the problem that the above beauty instruments have single functions and a small application range.

[0005] The first aspect of the embodiment of the utility model provides a control circuit of a portable beauty instrument, comprising:

[0006] A power supply unit, comprising a first power supply branch and a second power supply branch, wherein an output voltage of the first power supply branch is lower than an output voltage of the second power supply branch;

[0007] A pulse light triggering unit, connected to the second power supply branch, and used for periodically triggering the pulse light according to the driving signal;

[0008] A control unit, one end of which is connected to the first power supply branch and the other end of which is connected to the pulse light triggering unit, the control unit being used to output a driving signal and output a first direct current based on the electric energy provided by the first power supply branch;

[0009] The near-infrared light triggering unit is connected to the control unit and is used to work according to the first direct current to provide near-infrared light.

[0010] A second aspect of an embodiment of the utility model provides a portable beauty instrument, including a housing and a control circuit of the portable beauty instrument provided by the first aspect.

[0011] Compared with the prior art, the embodiment of the utility model has the following beneficial effects: the control circuit of the above-mentioned portable beauty instrument includes: a power supply unit, a pulse light trigger unit, a control unit and a near-infrared light trigger unit. Among them, the output voltage of the first power supply branch in the power supply unit is less than the output voltage of the second power supply branch in the power supply unit. One end of the control unit is connected to the second power supply branch, and the other end is connected to the pulse light trigger unit. The pulse light trigger unit is connected to the second power supply branch. The near-infrared light trigger unit is connected to the control unit. The control unit outputs a first direct current to the near-infrared light trigger unit, so that the near-infrared light trigger unit can work according to the first direct current, thereby providing near-infrared light. At the same time, the control unit also outputs a driving signal to the pulse light trigger unit, so that the pulse light trigger unit can periodically trigger the pulse light according to the driving signal based on the output voltage of the second power supply branch. The above scheme, through the first power supply branch and the second power supply branch in the power supply unit, can provide different power supply requirements for the portable beauty instrument, and the control unit is used to output the first direct current to the near-infrared light trigger unit and drive the signal to the pulse light trigger unit, so that the near-infrared light trigger unit can work according to the first direct current, thereby providing near-infrared light. At the same time, the pulse light trigger unit can periodically trigger the pulse light according to the driving signal based on the output voltage of the second power supply branch. This realizes that when the near-infrared light trigger unit is used to provide near-infrared light to act on the surface of the skin, the pulse light trigger unit can also be used to periodically trigger the pulse light to act on the deep layer of the skin, which provides a basis for the portable beauty instrument to output different light combinations, enriches the light function of the beauty instrument and broadens the scope of application of the beauty instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of the structure of a control circuit of a portable beauty instrument provided by an embodiment of the utility model;

[0013] Figure 2 A schematic diagram of the specific structure of the control circuit of the portable beauty instrument provided by the embodiment of the utility model;

[0014] Figure 3 A specific circuit diagram of a pulse light trigger unit in a control circuit of a portable beauty instrument provided by an embodiment of the utility model;

[0015] Figure 4 A schematic diagram of the structure of a portable beauty instrument provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0016] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0017] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0018] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0020] At present, most beauty devices on the market are equipped with a lighting unit or a light-emitting unit, such as LED beauty devices that use LEDs as light sources, near-infrared light (also called milk light) beauty devices that use halogen lamps as light sources, etc.

[0021] However, whether it is an LED beauty instrument or a near-infrared beauty instrument, the light intensity of the light provided can only be adjusted by controlling the working voltage of the LED light or near-infrared light trigger unit. The function is relatively simple and the scope of application is small.

[0022] In order to solve the above technical problems, an embodiment of the utility model provides a control circuit of a portable beauty instrument, including: a power supply unit, a pulse light trigger unit, a control unit and a near-infrared light trigger unit. Among them, the output voltage of the first power supply branch in the power supply unit is less than the output voltage of the second power supply branch in the power supply unit. One end of the control unit is connected to the second power supply branch, and the other end is connected to the pulse light trigger unit. The pulse light trigger unit is connected to the second power supply branch. The near-infrared light trigger unit is connected to the control unit. The control unit outputs a first direct current to the near-infrared light trigger unit, so that the near-infrared light trigger unit can work according to the first direct current, thereby providing near-infrared light. At the same time, the control unit also outputs a driving signal to the pulse light trigger unit, so that the pulse light trigger unit can periodically trigger the pulse light according to the driving signal based on the output voltage of the second power supply branch.

[0023] The above scheme can provide different power supply requirements for the portable beauty instrument through the first power supply branch and the second power supply branch in the power supply unit, and use the control unit to output the first direct current to the near-infrared light trigger unit and drive the signal to the pulse light trigger unit, so that the near-infrared light trigger unit can work according to the first direct current, and then provide near-infrared light. At the same time, the pulse light trigger unit can periodically trigger the pulse light according to the drive signal based on the output voltage of the second power supply branch. It is realized that when the near-infrared light trigger unit is used to provide near-infrared light to act on the surface of the skin, the pulse light trigger unit can also be used to periodically trigger the pulse light to act on the deep layer of the skin, which provides a basis for the portable beauty instrument to output different light combinations, enriches the light function of the beauty instrument and broadens the scope of application of the beauty instrument.

[0024] See also Figure 1 , Figure 1 The structure diagram of the control circuit of the portable beauty instrument provided by the embodiment of the utility model is shown. For the convenience of explanation, only the parts related to the embodiment are shown, which are described in detail as follows:

[0025] exist Figure 1 In the embodiment, the control circuit 100 of the portable beauty instrument includes: a power supply unit 10, a pulse light triggering unit 20, a control unit 30 and a near-infrared light triggering unit 40.

[0026] The power supply unit 10 includes a first power supply branch 11 and a second power supply branch 12, wherein the output voltage of the first power supply branch 11 is less than the output voltage of the second power supply branch 12. The pulse light trigger unit 20 is connected to the second power supply branch 12 and is used to periodically trigger the pulse light according to the driving signal. The control unit 30 is connected to the first power supply branch 11 at one end and to the pulse light trigger unit 20 at the other end. The control unit 30 is used to output the driving signal and output the first direct current based on the electric energy provided by the first power supply branch 11. The near-infrared light trigger unit 40 is connected to the control unit 30 and is used to work according to the first direct current and provide near-infrared light.

[0027] In this embodiment, the control circuit 100 of the portable beauty instrument can be configured in the main body of the portable beauty instrument, wherein the power supply unit 10 can also be configured in a power adapter connected to the main body. In actual use, after the power adapter is connected to the power supply, the power supply unit 10 processes the power of the power supply and outputs at least two voltages through the first power supply branch 11 and the second power supply branch 12. It can be understood that the power supply can be AC ​​or DC, which is not limited here.

[0028] It should be noted that since the output voltage of the first power supply branch 11 is lower than the output voltage of the second power supply branch 12, in a specific implementation, each unit can be connected to the first power supply branch 11 or to the second power supply branch 12 according to the working voltage requirements of each unit in the control circuit 100 of the beauty instrument.

[0029] In all embodiments of the present invention, the pulse light trigger unit 20 is used to periodically trigger the pulse light according to the driving signal. Since the pulse light acts on the deep layer of the skin, that is, triggering the pulse light requires a large amount of electrical energy, the pulse light trigger unit 20 can be connected to the second power supply branch 12. The control unit 30 requires a relatively small operating voltage, so the control unit 30 can be connected to the first power supply branch 11.

[0030] like Figure 1As shown, the pulse light trigger unit 20 is connected to the second power supply branch 12, and the second power supply branch 12 provides charging power for the pulse light trigger unit 20. One end of the control unit 30 is connected to the first power supply branch 11, that is, it can obtain working electricity from the first power supply branch 11 to work. At the same time, the other end of the control unit 30 is connected to the pulse light trigger unit 20, so it can output a driving signal to the pulse light trigger unit 20, and then control the pulse light trigger unit 20 to periodically trigger the pulse light according to the driving signal. Here, the driving signal can be understood as a signal for controlling the pulse light trigger unit 20 to trigger the pulse light. In a specific implementation, the driving signal can include a high level part and a low level part. When the pulse light trigger unit 20 receives the high level part, the pulse light is triggered, and when the pulse light trigger unit 20 receives the low level part, the pulse light is stopped. It is easy to understand that by adjusting the distribution of the high level part and the low level part in the driving signal, the period, frequency or time interval of the pulse light triggered by the pulse light trigger unit 20 can be adjusted.

[0031] It is understandable that in other embodiments, the driving signal may be a sinusoidal electrical signal. By controlling the distance between the peaks and troughs of the sinusoidal electrical signal, the period, frequency or time interval of the pulse light triggering unit 20 triggering the pulse light can be adjusted.

[0032] As an example, the period, frequency or time interval of the trigger pulse light can be adjusted by adjusting the pulse width of the driving signal. Here, the pulse width refers to the duration of the effective level in the driving signal. Taking the high level in the driving signal as the effective level as an example, the duration of the high level in the driving signal is the pulse width. The longer the pulse width in the driving signal, the stronger the energy of the single trigger pulse light of the driving pulse light trigger unit 20.

[0033] Taking the realization of 8 Hz periodic lighting as an example, assuming that the unit period of the trigger pulse light is 1 second, that is, 1000 milliseconds, 8 Hz periodic lighting is realized 8 times in 1 second, that is, triggering 8 pulses of light. Based on this, the interval length of each trigger pulse light can be set to 128 milliseconds, that is, 1 second can be divided into 8 125 milliseconds. Correspondingly, the duration of each low level in the drive signal is 125 milliseconds, and the duration of the high level is 0.09 milliseconds. Therefore, the drive signal can be used to drive the pulse light trigger unit 20 to trigger 8 pulses of light in 1 second.

[0034] It can be understood that, in a specific implementation, the control unit 30 can also be used to output a driving signal with different high-level durations according to actual needs, thereby driving the pulse light triggering unit 20 to trigger the pulse light with different lighting cycles. Among them, the duration of the high level of the driving signal is the effective pulse width, and the duration of the low level corresponds to the time interval between the effective pulse widths. The longer the high level duration, the longer the duration of a single intense pulse light triggered by an intense pulse light source, and accordingly, the energy of the intense pulse light is higher. The longer the low level duration, the longer the time interval between two adjacent intense pulse lights triggered by an intense pulse light source.

[0035] In this embodiment, the near-infrared light trigger unit 40 is connected to the control unit 30, and the control unit 30 can also output a first direct current to the near-infrared light trigger unit 40 based on the electric energy provided by the first power supply branch 11. Here, the first direct current is used as the working power of the near-infrared light trigger unit 40. In specific implementation, a direct current voltage conversion circuit can also be configured in the control unit 30, which converts the voltage output by the first power supply branch 11 into a voltage value, and then outputs a first direct current adapted to the near-infrared light trigger unit 40.

[0036] It is easy to understand that in practical applications, the control unit 30 can output a plurality of direct currents with different voltage values ​​as the first direct current, and the near-infrared light triggering unit 40 can output near-infrared light with different intensities according to the first direct currents with different voltage values. Here, the intensity of the near-infrared light is positively correlated with the voltage value of the first direct current.

[0037] In actual use, the control unit 30 can output a first direct current to the near-infrared light trigger unit 40, and at the same time output a driving signal to the pulse light trigger unit 20. The near-infrared light trigger unit 40 works according to the first direct current to provide near-infrared light, and the pulse light trigger unit 20 periodically triggers the pulse light according to the driving signal. At this time, the near-infrared light trigger unit 40 continuously provides near-infrared light, and the pulse light periodically triggered by the pulse light trigger unit 20 acts on the skin together. That is, while providing near-infrared light to act on the surface of the skin, it can also provide periodically triggered pulse light to act on the deep layer of the same skin area, which can effectively improve the skin care efficiency of the portable beauty instrument.

[0038] In practical applications, a control instruction can be triggered to the control unit 30, thereby instructing the control unit 30 to output a driving signal and / or output a first direct current, thereby realizing switching of different working modes of the portable beauty instrument.

[0039] Exemplarily, a functional button may be configured in the control circuit of the portable beauty instrument to allow the user to trigger a working instruction.

[0040] For example, when the user triggers the first working instruction to the control unit 30 through a functional button, the control unit 30 can output a first direct current to the near-infrared light trigger unit 40 based only on the electric energy provided by the first power supply branch according to the first working instruction. At this time, the portable beauty instrument only emits near-infrared light through the near-infrared light trigger unit 40.

[0041] For another example, when the user triggers the second working instruction to the control unit 30 through the functional button, the control unit 30 can output a driving signal only to the pulse light trigger unit 20 according to the second working instruction. At this time, the portable beauty instrument only periodically triggers the pulse light through the pulse light trigger unit 20.

[0042] For example, when the user triggers a third working instruction to the control unit 30 through a functional button, the control unit 30 can output a driving signal according to the third working instruction, and output a first direct current based on the electric energy provided by the first power supply branch. At this time, the portable beauty instrument emits near-infrared light through the near-infrared light trigger unit 40, and periodically triggers pulse light through the pulse light trigger unit 20.

[0043] Figure 2 The specific structural diagram of the control circuit of the portable beauty instrument provided by the embodiment of the utility model is shown. Figure 2 As shown, as an embodiment, the power supply unit 10 further includes:

[0044] The AC / DC conversion unit 101 is connected to the first power supply branch 11 and the second power supply branch 12 respectively. The AC / DC conversion unit 101 is used to connect to a power supply and perform voltage conversion according to the AC power provided by the power supply to output an initial DC power. The first power supply branch 11 is used to perform voltage conversion on the initial DC power and output a first working power. The second power supply branch 12 is used to perform voltage conversion on the initial DC power and output a second working power; the voltage of the second working power is greater than the voltage of the first working power.

[0045] In this embodiment, the AC-DC conversion unit 101 takes the AC power provided by the power source as input, converts the AC power into DC power to obtain initial DC power, and outputs the initial DC power to the first power supply branch 11 and the second power supply branch 12 respectively.

[0046] In a specific implementation, the AC-DC conversion unit 101 may select an existing half-wave rectification circuit, a full-wave rectification circuit or a bridge rectification circuit to rectify the AC power provided by the power supply and output the initial DC power.

[0047] As an example, taking the power source as AC power, the AC-DC conversion unit 101 can convert the AC power output by the AC power to obtain the initial DC power. The first power supply branch 11 performs voltage conversion on the initial DC power. For example, the first power supply branch 11 steps down the initial DC power and outputs the first working power with a voltage value in the range of 3 to 30V. The second power supply branch 12 performs voltage conversion on the initial DC power. For example, the second power supply branch 12 boosts the initial DC power and outputs the second working power with a voltage value between 50V and 350V. It can be understood that since both AC-DC conversion and DC voltage conversion can be implemented using existing conversion circuits or conversion circuits, they will not be described in detail here.

[0048] like Figure 2 As shown, as an embodiment, the control unit 30 includes: a main control unit 31, a DC voltage conversion unit 32 and a drive unit 33. Specifically:

[0049] The DC voltage conversion unit 32 is connected to the first power supply branch 11, and is used to convert the first working power according to the first control signal to output the first DC power. The driving unit 33 is connected to the pulse light triggering unit 20, and is used to output the driving signal according to the driving control signal. The main control unit 31 is connected to the DC voltage conversion unit 32 and the driving unit 33 respectively, and is used to output the driving control signal to the driving unit 33, and output the first control signal to the DC voltage conversion unit 32.

[0050] In this embodiment, the DC voltage conversion unit 32 is also connected to the near-infrared light trigger unit 40. The main control unit 31 can output a first control signal to the DC voltage conversion unit 32, which is used to instruct the DC voltage conversion unit 32 to convert the first working electricity, and then output the first DC power to the near-infrared light trigger unit 40. At the same time, the main control unit 31 can also output a driving control signal to the driving unit 33, and the driving unit 33 can output a corresponding driving signal to the pulse light trigger unit 20 according to the driving control signal.

[0051] In a specific implementation, the main control unit 31 can be implemented by building a corresponding control circuit based on a processor MCU. The DC voltage conversion unit 32 can be implemented by a voltage conversion circuit based on a DC-DC conversion chip. The voltage conversion circuit takes the first working power provided by the first power supply branch 11 as input and can output a first direct current with a different voltage value. The drive unit 33 can be specifically composed of a drive circuit constructed using an existing switch drive chip. The drive circuit responds to the drive control signal output by the main control unit 31, outputs a drive signal to the path switch in the pulse light trigger unit 20, and drives the pulse light trigger unit 20.

[0052] As an example, the first working power provided by the first power supply branch 11 may be a direct current of 24V to 30V, and the direct current voltage conversion unit 32 performs voltage conversion on the first working power, and then outputs a first direct current of 15V, 20V or 24V to the near-infrared light triggering unit 40. Here, the near-infrared light triggering unit 40 may operate in different states according to the first direct current with different voltage values, and then provide near-infrared light with different illumination intensities.

[0053] It is easy to understand that in other embodiments, when the first power supply branch 11 can output the first direct current compatible with the near-infrared light trigger unit 40, the direct current voltage conversion unit 32 in the control unit 30 can also be replaced by the switch unit. That is, the main control unit 31 can output a first control signal to the switch unit to instruct the switch unit to conduct the path between the first power supply branch 11 and the near-infrared light trigger unit 40, that is, directly output the first direct current from the first power supply branch 11 to the near-infrared light trigger unit 40.

[0054] like Figure 2 As shown, as an embodiment, the pulse light triggering unit 20 includes:

[0055] The energy storage unit 21 is connected to the second power supply branch 12 and is used to store electric energy based on the second working electricity. The light-emitting unit 22 is connected to the energy storage unit at one end. The switch unit 23 is connected to the control unit 30 and is connected between the light-emitting unit 22 and the ground, and is used to open and close the path between the light-emitting unit 22 and the ground according to the driving signal, so that the light-emitting unit 22 is powered by the energy storage unit 21, and when the path between the light-emitting unit 22 and the ground is connected, the pulse light is triggered.

[0056] In this embodiment, the energy storage unit 21 can specifically adopt an energy storage circuit composed of energy storage elements, for example, at least one capacitor is used to store electric energy. Of course, two or more capacitors can also be connected in parallel to form an energy storage unit 21 for electric energy storage according to actual needs.

[0057] It is easy to understand that in this embodiment, the energy storage unit 21 is connected to the second power supply branch 12, and is charged with the second working electricity provided by the second power supply branch 12 as charging energy. When the switch unit 23 receives the driving signal, it turns on and off the loop between the light emitting unit 22 and the ground according to the driving signal, thereby achieving the effect of periodically triggering the pulse light.

[0058] In a specific implementation, the switch unit 23 may be implemented by using an existing switch tube to build a corresponding electronic switch circuit, or may be implemented by using other existing electronic switch circuits.

[0059] Figure 3The specific circuit diagram of the pulse light trigger unit in the control circuit of the portable beauty instrument provided by the embodiment of the utility model is shown. Figure 2 and Figure 3 As an embodiment, the light-emitting unit 22 includes a lamp tube D and a trigger L1. The lamp tube D and the trigger L1 are connected in parallel between the energy storage unit 21 and the switch unit 23. Specifically, the lamp tube D and the trigger L1 are connected in parallel to form a first node P1 and a second node P2, the first node P1 is connected to the energy storage unit 21, and the second node P2 is connected to the switch unit 23. In this embodiment, the lamp tube D and the trigger L1 are both provided with electrical energy by the energy storage unit 21. The trigger L1 is used to apply a target voltage to the lamp tube D according to the electrical energy provided by the energy storage unit 21 to ionize the gas in the lamp tube D. The lamp tube D is used to trigger pulse light according to the electrical energy provided by the energy storage unit 21.

[0060] like Figure 3 As shown, as an embodiment, the energy storage unit 21 at least includes a first capacitor C1, a first end of the first capacitor C1 is connected to the second power supply branch 12, and a second end of the first capacitor C1 is connected to the first node P1.

[0061] In this embodiment, the first end of the first capacitor C1 can be used as the input end of the energy storage unit 21, and can be used to connect to the second power supply branch 12, and be charged with the second working power provided by the second power supply branch 12. The second end of the first capacitor C1 can be electrically connected to the lamp D and the trigger L1 through the first node P1, and then after the first capacitor C1 is charged, it can provide power to the lamp D and the trigger L1.

[0062] Combination Figure 3 and Figure 4 As an embodiment, the switch unit 23 includes a switch tube Q. The controlled end of the switch tube Q is connected to the control unit 30, specifically connected to the driving unit 33 in the control unit 30, the first potential end of the switch tube Q is connected to the light-emitting unit 22, and the second potential end of the switch tube Q is grounded.

[0063] In a specific implementation, the switch tube Q may be an IGBT transistor. As an example, in a specific implementation, the lamp tube D may be a xenon lamp tube. The trigger L1 applies a target voltage to the lamp tube D according to the working voltage, thereby ionizing the xenon gas in the lamp tube D. The driving unit 33 may output a driving signal to the switch tube Q according to the driving control signal, thereby controlling the switch tube Q to periodically turn on and off the path between the light-emitting unit 22 and the ground. Here, when the switch tube Q turns on the path between the light-emitting unit 22 and the ground, since the lamp tube D and the trigger L1 are connected in parallel between the first capacitor C1 and the ground, the pulse light may be triggered based on the electric energy provided by the first capacitor C1. When the switch tube Q disconnects the path between the light-emitting unit 22 and the ground, the lamp tube D and the trigger L1 are both in an open circuit state, thereby stopping the triggering of the pulse light. That is, the driving unit 33 outputs a driving signal to the switch tube Q, controls the switch tube Q to periodically turn on the loop between the light-emitting unit 22 and the ground, so that the parallel lamp tube D and the trigger L1 work periodically, thereby realizing the periodic triggering of the pulse light.

[0064] In a specific implementation, the lamp tube D includes at least one xenon lamp tube. Accordingly, the trigger L1 can be arranged around the xenon lamp tube, and can ionize the xenon gas in the xenon lamp tube when powered on. That is, at least one xenon lamp tube is connected in parallel with at least one trigger L1. Of course, in actual applications, the number of xenon lamp tubes can be configured according to actual needs, and accordingly, the number of triggers L1 can also vary accordingly.

[0065] As an embodiment, the near-infrared light triggering unit 40 includes at least one halogen lamp or a xenon lamp.

[0066] It can be understood that the near-infrared light trigger unit 40 is used to work according to the first direct current to provide near-infrared light, which can also be called milk light, referring to near-infrared light with a wavelength of 900nm-1800nm. Based on this, in the specific implementation, any existing lamp that can provide near-infrared light can be selected as the light source of the near-infrared light trigger unit 40, which will not be repeated here.

[0067] In the embodiment of the utility model, different power supply requirements can be provided for the portable beauty instrument through the first power supply branch and the second power supply branch in the power supply unit, and the control unit is used to output the first direct current to the near-infrared light trigger unit and the drive signal to the pulse light trigger unit, so that the near-infrared light trigger unit can work according to the first direct current, and then provide near-infrared light. At the same time, the pulse light trigger unit can periodically trigger the pulse light according to the drive signal based on the output voltage of the second power supply branch. It is realized that when the near-infrared light trigger unit is used to provide near-infrared light to act on the surface of the skin, the pulse light trigger unit can also be used to periodically trigger the pulse light to act on the deep layer of the skin, which provides a basis for the portable beauty instrument to output different light combinations, enriches the light function of the beauty instrument and broadens the scope of application of the beauty instrument.

[0068] Figure 4 FIG. 1 shows a schematic diagram of the structure of a portable beauty instrument provided by an embodiment of the utility model. Figure 4 As shown, the portable beauty instrument 200 includes the control circuit 100 of the portable beauty instrument provided in any one of the embodiments of the present utility model.

[0069] It is understandable that in Figure 4 In the embodiment shown, due to the improvements and specific implementations related to the utility model, it has been Figures 1 to 3 The corresponding embodiments are described in detail, so they will not be described again here.

[0070] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units.

[0071] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention.

Claims

1. A control circuit of a portable beauty instrument, characterized in that: include: A power supply unit, comprising a first power supply branch and a second power supply branch, wherein an output voltage of the first power supply branch is lower than an output voltage of the second power supply branch; A pulse light triggering unit, connected to the second power supply branch, and used for periodically triggering the pulse light according to the driving signal; A control unit, one end of which is connected to the first power supply branch and the other end of which is connected to the pulse light triggering unit, the control unit being used to output the driving signal and output a first direct current based on the electric energy provided by the first power supply branch; A near-infrared light triggering unit is connected to the control unit and is used to work according to the first direct current to provide near-infrared light.

2. The control circuit according to claim 1, characterized in that: The power supply unit further includes: an AC / DC conversion unit, connected to the first power supply branch and the second power supply branch respectively, the AC / DC conversion unit being used to connect to a power source and perform voltage conversion according to the AC power provided by the power source to output initial DC power; The first power supply branch is used to perform voltage conversion on the initial direct current to output first working power; The second power supply branch is used to perform voltage conversion on the initial direct current to output second working power; the voltage of the second working power is greater than the voltage of the first working power.

3. The control circuit according to claim 2, characterized in that: The pulse light triggering unit comprises: an energy storage unit, connected to the second power supply branch, and configured to store electric energy based on the second working electricity; A light emitting unit, one end of which is connected to the energy storage unit; A switch unit is connected to the control unit and connected between the light-emitting unit and the ground, and is used to open and close the path between the light-emitting unit and the ground according to a driving signal, so that the light-emitting unit is powered by the energy storage unit, and when the path between the light-emitting unit and the ground is turned on, a pulse light is triggered.

4. The control circuit according to claim 3, characterized in that: The light-emitting unit includes a lamp tube and a trigger; The lamp tube is connected in parallel with the trigger to form a first node and a second node, the first node is connected to the energy storage unit, and the second node is connected to the switch unit; The trigger is used to apply a target voltage to the lamp tube according to the electric energy provided by the energy storage unit, so as to ionize the gas in the lamp tube; The lamp tube is used to trigger pulse light according to the electric energy provided by the energy storage unit.

5. The control circuit according to claim 3, characterized in that: The switch unit includes a switch tube; The controlled end of the switch tube is connected to the control unit, the first potential end of the switch tube is connected to the light-emitting unit, and the second potential end of the switch tube is grounded.

6. The control circuit according to claim 4, characterized in that: The energy storage unit at least includes a first capacitor, a first end of the first capacitor is connected to the second power supply branch, and a second end of the first capacitor is connected to the first node.

7. The control circuit according to claim 2, characterized in that: The control unit includes: a main control unit, a DC voltage conversion unit and a drive unit; a DC voltage conversion unit connected to the first power supply branch, the DC voltage conversion unit being used to convert the first working power according to a first control signal to output a first DC power; A driving unit, connected to the pulse light triggering unit, and configured to output the driving signal according to a driving control signal; A main control unit is connected to the DC voltage conversion unit and the driving unit respectively, and the main control unit is used to output the driving control signal to the driving unit and output the first control signal to the DC voltage conversion unit.

8. The control circuit according to claim 4, characterized in that: The lamp tube comprises at least one xenon lamp tube.

9. The control circuit according to any one of claims 1 to 8, characterized in that: The near-infrared light triggering unit includes at least one halogen lamp or a xenon lamp.

10. A portable beauty instrument, comprising a housing, characterized in that: The portable beauty instrument comprises the control circuit of the portable beauty instrument according to any one of claims 1 to 9.

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