Cosmetic instrument and control circuit thereof

Abstract

The utility model provides a beauty instrument and a control circuit thereof, and the control circuit comprises a power supply unit, a control unit, a near-infrared light unit, a refrigeration unit, a timing unit, and a pulsed light trigger unit. Wherein the power supply unit comprises a first power supply branch and a second power supply branch; the control unit is used for outputting the first direct current and the second direct current and outputting a driving signal when receiving a lighting instruction. The near-infrared light unit is used for working according to the first direct current and providing near-infrared light. The refrigeration unit is used for working according to the second direct current and providing cooling capacity for the cold compress part. The timing unit is used for providing timing data. The pulsed light trigger unit is used for periodically outputting pulsed light according to the driving signal. The control unit is further used for stopping outputting the second direct current and continuously outputting the first direct current when it is determined that the lighting instruction is not received within the first preset duration according to the timing data. The beauty instrument provided by the utility model can solve the technical problem that water mist is easy to generate in the conventional beauty instrument.

Description

Technical Field

[0001] The utility model relates to the technical field of skin treatment devices, in particular to a beauty instrument and a control circuit thereof. Background Art

[0002] Beauty devices mainly emit skin-processing light of specific wavelengths to achieve specific beauty effects on the skin (such as whitening, skin rejuvenation, freckle removal, wrinkle removal, hair removal, etc.), and the energy of some skin-processing light will exceed the tolerance range of human skin, causing burning or pain on the skin. Therefore, the beauty device will also be equipped with a cold compress (such as sapphire) and a refrigeration component connected to the cold compress. The refrigeration component cools the cold compress and reduces the temperature of the cold compress. When the low-temperature cold compress contacts the skin, it can effectively relieve the burning or pain caused by the skin.

[0003] However, after the beauty instrument switches from working mode to standby or shutdown mode, the cold compress has a lower temperature, and the higher temperature air around the cold compress comes into contact with the cold compress and easily produces water mist on its light incident surface. The water mist will affect the light output of skin treatment light (such as pulsed light, near-infrared light, etc.), thereby affecting user use and causing a bad experience. Utility Model Content

[0004] The embodiment of the utility model provides a control circuit of a beauty instrument to solve the technical problem that after the existing beauty instrument switches from the working mode to the standby mode or the shutdown mode, water mist is easily generated on the surface of the cold compress, thereby affecting the next use.

[0005] To achieve the above object, the utility model provides a control circuit of a beauty instrument, wherein the control circuit is arranged in a housing of the beauty instrument, and a cold compress is also installed in the housing of the beauty instrument. The control circuit comprises:

[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 control unit connected to the first power supply branch, configured to output a first direct current and a second direct current according to the electric energy provided by the first power supply branch, and output a driving signal when receiving a lighting instruction;

[0008] a near infrared light unit connected to the control unit and configured to operate according to the first direct current to provide near infrared light;

[0009] A refrigeration unit connected to the control unit and configured to operate according to the second direct current to provide cooling for the cold compress;

[0010] A timing unit, connected to the control unit, for providing timing data;

[0011] A pulse light trigger unit is connected to the second power supply branch and the control unit, and is used to periodically output pulse light according to the driving signal;

[0012] The control unit is further configured to, when it is determined based on the timing data that no lighting instruction is received within a first preset time period, stop outputting the second direct current and continue outputting the first direct current.

[0013] Optionally, in one embodiment, the control unit includes: a main control unit, a DC voltage conversion unit, and a drive unit;

[0014] A DC voltage conversion unit is connected to the first power supply branch, and is used to convert the first working power according to the first control signal, output the first DC power and the second DC power, and stop outputting the second DC power and continue to output the first DC power according to the second control signal;

[0015] A driving unit, connected to the pulse light triggering unit, and configured to output a driving signal according to a driving control signal;

[0016] The main control unit is connected to the timing unit, and is also connected to the DC voltage conversion unit and the driving unit respectively. The main control unit is used to output a first control signal to the DC voltage conversion unit, and when it is determined according to the timing data that no lighting instruction is received within a first preset time period, output a second control signal to the DC voltage conversion unit, and when a lighting instruction is received, output a driving control signal to the driving unit.

[0017] Optionally, in one embodiment, the DC voltage conversion unit is further connected to the near infrared light unit and the refrigeration unit respectively, and the DC voltage conversion unit is further used to stop outputting the first DC power and the second DC power according to the third control signal;

[0018] The main control unit is also used to, after outputting the second control signal, determine according to the timing data that the duration for which the DC voltage conversion unit continuously outputs the first DC power is greater than a second preset duration, and output a third control signal to the DC voltage conversion unit.

[0019] Optionally, in one embodiment, the control circuit further includes: a trigger button exposed on the shell, for allowing a user to trigger a lighting instruction.

[0020] Optionally, in one embodiment, the control circuit further includes: a communication unit, connected to the control unit, used to connect to the control terminal, and when receiving a lighting instruction sent by the control terminal, send the lighting instruction to the control unit.

[0021] Optionally, in one embodiment, the control circuit further includes:

[0022] A movement detection unit, connected to the control unit, for detecting movement data of the beauty instrument;

[0023] The control unit is also used to stop outputting the second direct current and continue outputting the first direct current when the movement data received within a first preset time period are all less than a preset movement threshold.

[0024] Optionally, in one embodiment, the control circuit further includes:

[0025] A humidity detection unit is connected to the control unit, the humidity detection unit is arranged in the housing, and the humidity detection unit is used to detect humidity data in the housing;

[0026] The control unit is also used to stop outputting the second direct current and continue outputting the first direct current when the humidity data is greater than a preset humidity threshold.

[0027] Optionally, in one embodiment, the near infrared light unit includes at least one halogen lamp and / or a xenon lamp.

[0028] Optionally, in one embodiment, the pulse light triggering unit includes at least one xenon lamp.

[0029] The utility model also provides a beauty instrument, which comprises the control circuit.

[0030] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0031] When the control unit determines according to the timing data that no lighting instruction is received within the first preset time, it can be determined that the user is not using the pulse light trigger unit for beauty treatment. At this time, the control unit controls the second DC to stop outputting and controls the first DC to continue outputting, that is, controls the refrigeration unit to stop refrigeration, and controls the near-infrared light unit to remain on for a period of time. It can be understood that when the near-infrared light unit remains on, heat is generated, so that the heat generated by the near-infrared light unit can be used to heat the water mist inside the beauty instrument, so that the water mist evaporates and prevents the water mist from affecting the light output of the skin treatment light, thereby effectively solving the technical problem that after the existing beauty instrument switches from the working mode to the standby or shutdown mode, the cold compress is prone to generate water mist, thereby affecting the next use. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0033] Figure 1 It is a structural schematic diagram of the control circuit of the beauty instrument of the utility model applied to the beauty instrument;

[0034] Figure 2 This is a structural schematic diagram of an embodiment of the beauty instrument of the utility model;

[0035] Figure 3 It is a structural schematic diagram of an embodiment of a control circuit of the beauty instrument of the utility model;

[0036] Figure 4 It is a structural schematic diagram of another embodiment of the control circuit of the beauty instrument of the present utility model.

[0037] Description of Figure Numbers:

[0038]

[0039] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0041] Beauty devices mainly emit skin-processing light of specific wavelengths to achieve specific beauty effects on the skin (such as whitening, skin rejuvenation, freckle removal, wrinkle removal, hair removal, etc.), and the energy of some skin-processing light will exceed the tolerance range of human skin, causing burning or pain on the skin. Therefore, the beauty device will also be equipped with a cold compress (such as sapphire) and a refrigeration component connected to the cold compress. The refrigeration component cools the cold compress and reduces the temperature of the cold compress. When the low-temperature cold compress contacts the skin, it can effectively relieve the burning or pain caused by the skin.

[0042] However, after the refrigeration element switches from working mode to standby or shutdown mode, the cold compress has a lower temperature, and the higher temperature air around the cold compress comes into contact with the cold compress and easily produces water mist on its light incident surface. The water mist will affect the light output of skin treatment light (such as pulsed light, near-infrared light, etc.), thereby affecting user use and causing a bad experience.

[0043] In order to solve the above problems, the utility model proposes a control circuit of a beauty instrument, which is arranged in the shell of the beauty instrument. A cold compress is also installed in the shell of the beauty instrument. The control circuit includes a power supply unit, a control unit, a near-infrared light unit, a refrigeration unit, a timing unit and a pulse light trigger unit.

[0044] The power supply unit includes a first power supply branch and a second power supply branch, and the output voltage of the first power supply branch is less than the output voltage of the second power supply branch. The control unit is connected to the first power supply branch, and the control unit is used to output the first direct current and the second direct current according to the electric energy provided by the first power supply branch, and output a driving signal when receiving a lighting instruction. The near-infrared light unit is connected to the control unit, and the near-infrared light unit is used to work according to the first direct current and provide near-infrared light. The refrigeration unit is connected to the control unit, and the refrigeration unit is used to work according to the second direct current to provide cold for the cold compress. The timing unit is connected to the control unit, and the timing unit is used to provide timing data. The pulse light trigger unit is connected to the second power supply branch and to the control unit, and the pulse light trigger unit is used to periodically output pulse light according to the driving signal. The control unit is also used to stop outputting the second direct current and continue to output the first direct current when it is determined according to the timing data that no lighting instruction has been received within the first preset time length.

[0045] Therefore, when the control unit determines according to the timing data that no lighting instruction is received within the first preset time, it can be determined that the user is not using the pulse light trigger unit for beauty treatment. At this time, the control unit controls the second DC to stop outputting and controls the first DC to continue outputting, that is, the control unit controls the refrigeration unit to stop refrigeration and controls the near-infrared light unit to remain on for a period of time. It can be understood that heat is generated when the near-infrared light unit remains on, so the heat generated by the near-infrared light unit can be used to heat the water mist inside the beauty instrument, so that the water mist evaporates and prevents the water mist from affecting the light output of the skin treatment light, thereby effectively solving the technical problem that after the existing beauty instrument switches from the working mode to the standby or shutdown mode, water mist is easily generated on the surface and around the cold compress, thereby affecting the next use.

[0046] The control circuit 100 of the beauty instrument 1 provided in the embodiment of the utility model will be described in detail below with reference to the accompanying drawings.

[0047] like Figure 1 As shown, the control circuit 100 provided in the embodiment of the utility model is arranged in the shell 200 of the beauty instrument 1, and a light outlet 201 is provided at one end in the length direction of the shell 200. The control circuit 100 includes a near-infrared light unit 30 and a pulse light trigger unit 60. The near-infrared light unit 30 and the pulse light trigger unit 60 are both arranged relative to the light outlet 201, so that the near-infrared light emitted by the near-infrared light unit 30 and the pulse light emitted by the pulse light trigger unit 60 can be irradiated onto the skin through the light outlet 201, thereby achieving a corresponding beauty effect on the skin.

[0048] For example, the wavelength of near-infrared light is usually between 760 and 1500 nanometers. Near-infrared light has excellent penetration ability and can penetrate deep into the skin tissue, which can help depigment and has a significant effect on improving dull and sagging skin and dull complexion. Secondly, near-infrared light can also promote blood circulation and stimulate the production of collagen, thereby brightening the skin tone and making the skin firmer and more elastic.

[0049] For example, pulsed light is usually a high-energy light pulse that can act on problem areas of the skin in a targeted manner to achieve precise treatment, such as fading spots, removing acne, tightening the skin, removing hair, and many other effects.

[0050] Because pulsed light is a high-energy light, it can cause uncomfortable burning or pain on the skin while having a cosmetic effect. Therefore, in order to relieve the burning or pain on the skin, Figure 1 As shown, a cold compress 202 is also provided in the housing 200. The cold compress 202 can be made of sapphire with good light transmittance and thermal conductivity. The cold compress 202 is connected to the light outlet 201. The control circuit 100 of the utility model also includes a refrigeration unit 40, which is connected to the cold compress 202. The refrigeration unit 40 can be a semiconductor refrigeration sheet. The semiconductor refrigeration sheet uses the thermoelectric effect of semiconductor materials to convert heat energy in a specific semiconductor material through direct current, thereby achieving a refrigeration effect. Therefore, the refrigeration unit 40 can provide coldness for the cold compress 202, so that the temperature of the cold compress 202 is relatively low. When the skin contacts the cold compress 202, it can avoid the heat accumulated on the cold compress 202 by the skin treatment light to irritate the skin, causing a burning sensation or pain.

[0051] The cold compress 202 has a light incident surface 2021 and a light emitting surface 2022 which are opposite to each other along the axial direction of the light outlet 201. The near infrared light unit 30 and the pulse light trigger unit 60 are both arranged opposite to the light incident surface 2021, and the light emitting surface 2022 is used to face the skin. When the near infrared light unit 30 emits near infrared light, or the pulse light trigger unit 60 emits pulse light, the near infrared light or pulse light passes through the cold compress 202 and the light outlet 201, and finally irradiates the skin. At this time, the light emitting surface 2022 of the cold compress 202 is attached to the skin, and then the skin can be cold-compressed to relieve the burning sensation or pain on the skin and improve the user experience.

[0052] It should be noted here that, usually, in the beauty instrument 1, the energy of near-infrared light is relatively low, and the energy of pulse light is relatively high, so when only the near-infrared light unit 30 is working, the refrigeration unit 40 may be turned off, and when the pulse light trigger unit 60 is working, the refrigeration unit 40 may be turned on.

[0053] The opening and closing of the near infrared light unit 30, the pulse light unit and the cooling unit 40 can be controlled by the control unit 20. Figure 1 As shown, the control circuit 100 provided in the embodiment of the utility model further includes a control unit 20. The control unit 20 can output a first direct current and a second direct current, and can output a driving signal when receiving a lighting instruction.

[0054] In a specific implementation, the control unit 20 at least includes a corresponding voltage conversion circuit built using an existing DC voltage conversion chip, and a drive circuit built using a drive chip. Here, the voltage conversion circuit uses the electric energy provided by the first power supply branch 11 as input, and uses the first DC power and the second DC power as output. The first DC power and the second DC power can specifically be DC power with the same or different voltages. The drive circuit is used to output a drive signal to the pulse light trigger unit 60.

[0055] The near infrared light unit 30 is connected to the control unit 20, and the near infrared light unit 30 is used to work according to the first direct current to provide near infrared light. That is, when the control unit 20 outputs the first direct current to the near infrared light unit 30, the near infrared light unit 30 emits near infrared light to the light outlet 201; and when the control unit 20 stops outputting the first direct current to the infrared light unit, the near infrared light unit 30 stops working, that is, stops emitting near infrared light.

[0056] The refrigeration unit 40 is connected to the control unit 20, and the refrigeration unit 40 is used to work according to the second direct current to provide cooling for the cold compress 202. That is, when the control unit 20 outputs the second direct current to the refrigeration unit 40, the refrigeration unit 40 provides cooling for the cold compress 202; and when the control unit 20 stops outputting the second direct current to the refrigeration unit 40, the refrigeration unit 40 stops working, that is, stops cooling the cold compress 202.

[0057] The pulse light trigger unit 60 is connected to the control unit 20, and the pulse light trigger unit 60 is used to periodically output pulse light according to the driving signal. That is, when the control unit 20 receives the lighting instruction, the control unit 20 outputs the driving signal to the pulse light trigger unit 60, and the pulse light trigger unit 60 periodically outputs pulse light; when the control unit 20 does not receive the lighting instruction, the control unit 20 will not output the driving signal to the pulse light trigger unit 60, and the pulse light trigger unit 60 will not emit pulse light.

[0058] It should be noted here that the lighting instruction is issued by the user to the control unit 20 according to needs, and there are many ways to issue the lighting instruction.

[0059] For example, optionally, in one embodiment, Figure 2As shown, the control circuit 100 also includes a trigger button 70 exposed on the housing 200, and the trigger button 70 is connected to the control unit 20 for the user to trigger the lighting command. That is, the user can send a lighting command to the control unit 20 by pressing the button 70. Of course, the button 70 can also be used to turn on and off the beauty instrument 1, adjust the lighting gear, etc. The specific design can be flexibly based on the needs, and will not be described in detail here.

[0060] Or, optionally, in another embodiment, as Figure 2 As shown, the control circuit 100 further includes a communication unit 80, which is connected to the control unit 20, and is used to connect to the control terminal, and when receiving the lighting instruction sent by the control terminal, the lighting instruction is sent to the control unit 20. Specifically, the communication unit 80 can be Bluetooth, Wi-Fi (Wireless Fidelity), NFC (Near Field Communication), etc., and the control terminal can be a mobile phone, a remote control, etc. The communication unit 80 is connected to the control unit 20 and the control terminal respectively, and then the user can send a lighting instruction to the communication unit 80 through the control terminal, and the communication unit 80 sends the lighting instruction to the control unit 20.

[0061] As mentioned above, because the pulse light energy emitted by the pulse light trigger unit 60 is relatively high, when the pulse light trigger unit 60 is working, the refrigeration unit 40 generally needs to be turned on synchronously to cool down the cold compress 202 and apply cold compress to the skin.

[0062] However, it is understandable that when the pulse light trigger unit 60 stops working (i.e. stops emitting pulse light), because the temperature of the cold compress 202 is relatively low, the higher temperature air surrounding the cold compress 202 is likely to produce water mist on the light incident surface 2021 of the cold compress 202 after contacting the cold compress 202. The water mist will affect the light output of the skin treatment light, thereby affecting the user's use and causing a bad experience.

[0063] Therefore, in order to solve the above technical problems, Figure 1 As shown, in the control circuit 100 provided in the embodiment of the utility model, the control circuit 100 further includes a timing unit 50, which can be specifically a timer, connected to the control unit 20, and used to provide timing data. The control unit 20 is also used to determine, based on the timing data, that no lighting instruction is received within a first preset time period, stop outputting the second direct current and continue outputting the first direct current.

[0064] That is to say, when the control unit 20 determines according to the timing data that no lighting instruction has been received within the first preset time period, it can be determined that the user is not using the pulse light trigger unit 60 for beauty treatment. At this time, the control unit 20 controls the second DC power to stop outputting and controls the first DC power to continue outputting, that is, the control unit 20 controls the refrigeration unit 40 to stop cooling, and controls the near-infrared light unit 30 to remain on for a period of time.

[0065] It can be understood that when the near-infrared light unit 30 is kept turned on, it will generate heat. In this way, the heat generated by the near-infrared light unit 30 can be used to heat the water mist inside the beauty instrument 1, so that the water mist evaporates and prevents the water mist from affecting the light output of the skin treatment light. This effectively solves the technical problem that the interior of the existing beauty instrument 1 is prone to generate water mist after the refrigeration part switches from the working mode to the standby or shutdown mode, thereby affecting the next use.

[0066] It should be noted here that the first preset time length can be flexibly selected according to actual conditions. For example, in the present embodiment, the first preset time length is set to two minutes. The timing unit 50 starts timing after a lighting instruction is issued. When the timing accumulates to two minutes and the control unit 20 still does not receive the lighting instruction again, it can be determined that the user is not using the pulse light trigger unit 60 for beauty treatment. At this time, the control unit 20 controls the refrigeration unit 40 to stop working, and controls the near-infrared light unit 30 to remain on for a period of time.

[0067] Of course, if the control unit 20 receives a lighting instruction again within two minutes after receiving the previous lighting instruction, it means that the user is still using the pulse light trigger unit 60 for beauty treatment. At this time, the control unit 20 does not need to stop outputting the second direct current, and the refrigeration unit 40 and the near-infrared light unit 30 still keep working. At this time, the control unit 20 continues to determine whether it receives a lighting instruction again within two minutes after receiving the current lighting instruction.

[0068] In other embodiments, the first preset duration may also be one minute, three minutes, four minutes, five minutes, etc.

[0069] It should also be noted that in order to provide electrical energy to the above-mentioned units (control unit 20, near infrared light unit 30, refrigeration unit 40, timing unit 50, pulse light trigger unit 60), as Figure 1 , Figure 2 or Figure 3 As shown, the control circuit 100 provided in the embodiment of the utility model also includes a power supply unit 10, the power supply unit 10 includes a first power supply branch 11 and a second power supply branch 12, the output voltage of the first power supply branch 11 is less than the output voltage of the second power supply branch 12, wherein the first power supply branch 11 is connected to the control unit 20, and the second power supply branch 12 is connected to the pulse light trigger unit 60.

[0070] Specifically, Figure 4 As shown, the control unit 20 includes a main control unit 21 , a DC voltage conversion unit 22 and a drive unit 23 .

[0071] Among them, the main control unit 21 is connected to the timing unit 50, and is also connected to the DC voltage conversion unit 22 and the driving unit 23 respectively. The main control unit 21 is used to output a first control signal to the DC voltage conversion unit 22, and the main control unit 21 is also used to output a second control signal to the DC voltage conversion unit 22 when it is determined according to the timing data that no lighting instruction is received within a first preset time period. In addition, the main control unit 21 is also used to output a driving control signal to the driving unit 23 when a lighting instruction is received.

[0072] The DC voltage conversion unit 22 is also connected to the first power supply branch 11, and the DC voltage conversion unit 22 is used to output the first DC power and the second DC power according to the first control signal, and to stop outputting the second DC power and continue to output the first DC power according to the second control signal. The near-infrared light unit 30 is connected to the DC voltage conversion unit 22, and the near-infrared light unit 30 is used to work according to the first DC power and provide near-infrared light. The refrigeration unit 40 is connected to the DC voltage conversion unit 22, and the refrigeration unit 40 is used to work according to the second DC power and provide cooling for the cold compress 202.

[0073] The driving unit 23 is also connected to the pulse light triggering unit 60, and the driving unit 23 is used to output a driving signal according to the driving control signal. The pulse light triggering unit 60 is connected to the second power supply branch 12 and is also connected to the driving unit 23, and the pulse light triggering unit 60 is used to periodically output pulse light according to the driving signal.

[0074] Further, in one embodiment, the main control unit 21 is further configured to, after outputting the second control signal, determine according to the timing data that the duration for which the DC voltage conversion unit 22 continuously outputs the first DC power is greater than the second preset duration, and output a third control signal to the DC voltage conversion unit 22;

[0075] The DC voltage conversion unit 22 is also connected to the near infrared light unit 30 and the refrigeration unit 40 respectively. The DC voltage conversion unit 22 is also used to stop outputting the first DC power and the second DC power according to the third control signal.

[0076] Specifically, in this embodiment, as described above, when the main control unit 21 outputs the second control signal, the DC voltage conversion unit 22 stops outputting the second DC power and continues to output the first DC power according to the second control signal, that is, the refrigeration unit 40 stops working at this time, and the near-infrared light unit 30 keeps working, and then starts to evaporate the water mist in the shell 200 (especially the surface of the cold compress 202) through the heat of the near-infrared light.

[0077] It can be understood that after the near-infrared light keeps working for a period of time, the water mist will be evaporated, and the near-infrared light unit 30 can be turned off at this time. Therefore, in this embodiment, the control unit 20 is also used to determine that the duration of the DC voltage conversion unit 22 continuously outputting the first DC power is greater than the second preset duration according to the timing data, and output a third control signal to the DC voltage conversion unit 22. The DC voltage conversion unit 22 is also used to stop outputting the first DC power and the second DC power according to the third control signal, thereby stopping the near-infrared light unit 30 from working and completing the defogging work.

[0078] It should be noted here that the second preset time length can be flexibly set according to actual conditions. For example, in one embodiment, the second preset time length is three minutes, that is, starting from the time when the refrigeration unit 40 stops working and the near-infrared light unit 30 continues to work for three minutes, the control unit 20 can output a third control signal to the DC voltage conversion unit 22, so that the DC voltage conversion unit 22 stops outputting the first DC power to the near-infrared light unit 30, thereby turning off the near-infrared light unit 30 and ending the defogger.

[0079] Of course, in other embodiments, the second preset duration may also be two minutes, four minutes, five minutes, six minutes, eight minutes, ten minutes, etc.

[0080] Optionally, in one embodiment, as Figure 2 or Figure 3 As shown, the control circuit 100 further includes a movement detection unit 90, which can be a gyroscope installed in the housing 200. The movement detection unit 90 is connected to the control unit 20, and the movement detection unit 90 is used to detect the movement data of the beauty instrument 1. The control unit 20 is also used to stop outputting the second direct current and continue to output the first direct current when the movement data received within a first preset time period are all less than a preset movement threshold.

[0081] That is, in this embodiment, in addition to determining whether the user is still using the beauty instrument 1 based on "whether the lighting instruction is received again within the first preset time period", the control unit 20 also determines whether the user is still using the beauty instrument 1 based on "whether the beauty instrument 1 moves or tilts".

[0082] Specifically, when the user is using the beauty instrument 1, the user may press the wrong button 70, or the force of pressing the button 70 is insufficient, or the control unit 20 and the control terminal are disconnected from each other, etc., which may cause the control unit 20 to not receive the lighting instruction again within the first time period after receiving the last lighting instruction, so that the control unit 20 will control the refrigeration unit 40 to stop cooling the cold compress 202. At this time, if the user finds that the wrong button 70 is pressed and presses the correct button 70 again, or increases the force of pressing the button 70, or the control unit 20 and the control terminal reconnect and communicate, then the pulse light trigger unit 60 will emit pulse light without cooling the refrigeration unit 40, and the cold compress 202 will not be able to form an effective cold compress on the skin due to insufficient cooling, which will cause the skin to produce an uncomfortable burning sensation or pain, affecting the user experience.

[0083] Therefore, in this embodiment, the control unit 20 is further configured to stop outputting the second direct current and continue outputting the first direct current when the movement data received within the first preset time period are all less than the preset movement threshold. That is, when the beauty instrument 1 does not move or tilt significantly, it means that the beauty instrument 1 has been stably placed, that is, the user is not using the beauty instrument 1. At this time, the control unit 20 controls the refrigeration unit 40 to stop refrigeration, and controls the near-infrared light unit 30 to continue working.

[0084] It can be understood that this configuration of the present embodiment can reduce the probability of misjudgment of “whether the user is still using the beauty instrument 1 ” by the control unit 20 , thereby improving the user experience of the beauty instrument 1 .

[0085] It should be noted here that the preset movement threshold can be flexibly set according to actual conditions. For example, when the movement data is the tilt angle, the preset movement threshold can be 1°. That is, when the tilt angle of the beauty instrument 1 is less than 1°, it can be judged that the beauty instrument 1 has been placed stably and the user is not using the beauty instrument 1; and when the tilt angle of the beauty instrument 1 is greater than 1°, it indicates that the user may be using the beauty instrument 1.

[0086] Optionally, in one embodiment, as Figure 2 or Figure 3 As shown, the control circuit 100 further includes a humidity detection unit 110, which can be specifically a humidity sensor, a laser hygrometer, a moisture absorption point meter, etc. The humidity detection unit 110 is disposed in the housing 200 and connected to the control unit 20, and the humidity detection unit 110 is used to detect humidity data in the housing 200. The control unit 20 is also used to stop outputting the second direct current and continue to output the first direct current when the humidity data is greater than a preset humidity threshold.

[0087] That is, in this embodiment, the control unit 20 also determines whether it is necessary to defog by near-infrared light according to "whether the humidity in the beauty instrument 1 is greater than the preset humidity threshold value". Specifically, in some cases, the user uses the beauty instrument 1 for a short time. For example, when the user first starts using the beauty instrument, he stops using the beauty instrument 1 because of some things (such as answering the phone), and the time of stopping using the beauty instrument 1 is longer than the first time. At this time, the control unit 20 will not receive the lighting instruction again within the first preset time after receiving the last lighting instruction. In this case of "the user uses the beauty instrument 1 for a short time", the cooling time of the cold compress 202 by the refrigeration unit 40 is also short, and the temperature of the cold compress 202 is basically the same as the ambient temperature. At this time, no water mist will be generated on the surface of the cold compress 202 and its surroundings, that is, no defog is needed. At this time, if the near-infrared light unit 30 is controlled to continue working for a period of time, it will cause a waste of electric energy.

[0088] Therefore, in this embodiment, when the control unit 20 does not receive the lighting instruction again within the first preset time period, the control unit 20 is used to determine whether the near-infrared light unit 30 needs to continue working for a period of time based on whether the humidity data is greater than the preset humidity threshold.

[0089] Specifically, if the humidity data is greater than the preset humidity threshold, it means that water mist has been generated on the surface of the cold compress 202 and its surroundings. At this time, the control unit 20 can control the refrigeration unit 40 to stop, and control the near-infrared light unit 30 to continue working, so as to evaporate the water mist through the heat of the near-infrared light. If the humidity data is less than the preset humidity threshold, the control unit 20 can output a third control signal to stop both the refrigeration unit 40 and the near-infrared light unit 30.

[0090] It can be understood that in this embodiment, the control unit 20 is also used to determine whether defog is needed according to the humidity, which can save power of the beauty instrument 1 and avoid wasting power to affect the use time of the beauty instrument 1 after each full charge.

[0091] Optionally, in one embodiment, the near-infrared light unit 30 includes at least one halogen lamp and / or a xenon lamp, that is, the near-infrared light unit 30 may include one or more halogen lamps, one or more xenon lamps, or one or more halogen lamps and xenon lamps at the same time.

[0092] Optionally, in one embodiment, the pulse light triggering unit 60 includes at least one xenon lamp, that is, the number of xenon lamps in the pulse light triggering unit 60 may be one, two, three, four, five, and so on.

[0093] The present utility model also provides a beauty instrument 1, which includes a housing 200 and a control circuit 100. Figure 2As shown, a light outlet 201 is provided on the housing 200, and a cold compress 202 is further provided in the housing 200. The cold compress 202 may be made of sapphire, and at least a part of the cold compress 202 is internally installed in the light outlet 201. The specific structure of the control circuit 100 refers to the above embodiment, wherein the refrigeration unit 40 is connected to the cold compress 202 to cool the cold compress 202, and the near-infrared light unit 30 and the pulse light trigger unit 60 are respectively provided on the side of the cold compress 202 away from the light outlet 201, so that the light emitted by the near-infrared light unit 30 and the pulse light trigger unit 60 can pass through the cold compress 202 and irradiate out from the light outlet 201.

[0094] It can be understood that since the beauty instrument 1 of the utility model adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0095] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments. In the description of the present utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0096] The beauty instrument provided by the embodiment of the utility model is introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation mode of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. At the same time, for technicians in this field, according to the idea of ​​the utility model, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A control circuit of a beauty instrument, characterized in that: The control circuit is arranged in a housing of the beauty instrument, and a cold compress is also installed in the housing. The control circuit includes: 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 control unit, connected to the first power supply branch, configured to output a first direct current and a second direct current according to the electric energy provided by the first power supply branch, and output a driving signal when receiving a lighting instruction; a near infrared light unit, connected to the control unit, and configured to operate according to the first direct current to provide near infrared light; a refrigeration unit connected to the control unit and configured to operate according to the second direct current to provide cooling for the cold compress; A timing unit, connected to the control unit, for providing timing data; a pulse light triggering unit, connected to the second power supply branch and the control unit, and configured to periodically output pulse light according to the driving signal; The control unit is further configured to, when it is determined according to the timing data that no lighting instruction is received within a first preset time period, stop outputting the second direct current and continue outputting the first direct current.

2. The control circuit of the beauty instrument according to claim 1, 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 working power provided by the first power supply branch according to a first control signal, output the first DC power and the second DC power, and stop outputting the second DC power and continue outputting the first DC power according to a second control signal; 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 timing unit, and is also connected to the DC voltage conversion unit and the driving unit respectively. The main control unit is used to output the first control signal to the DC voltage conversion unit, output the second control signal to the DC voltage conversion unit when it is determined according to the timing data that no lighting instruction is received within a first preset time period, and output the driving control signal to the driving unit when the lighting instruction is received.

3. The control circuit of the beauty instrument as claimed in claim 2, characterized in that: The DC voltage conversion unit is also connected to the near-infrared light unit and the refrigeration unit respectively, and the DC voltage conversion unit is also used to stop outputting the first DC power and the second DC power according to a third control signal; The main control unit is further configured to, after outputting the second control signal, determine according to the timing data that the duration for which the DC voltage conversion unit continuously outputs the first DC power is greater than a second preset duration, and output the third control signal to the DC voltage conversion unit.

4. The control circuit of the beauty instrument according to claim 1, characterized in that: Also includes: The trigger button exposed on the shell is used for the user to trigger the lighting instruction.

5. The control circuit of the beauty instrument according to claim 1, characterized in that: Also includes: The communication unit is connected to the control unit and is used to connect to the control terminal. When receiving the lighting instruction sent by the control terminal, the communication unit sends the lighting instruction to the control unit.

6. The control circuit of the beauty instrument according to claim 1, characterized in that: Also includes: A movement detection unit, connected to the control unit, for detecting movement data of the beauty instrument; The control unit is further configured to, when the movement data received within the first preset time period are all less than a preset movement threshold, stop outputting the second direct current and continue outputting the first direct current.

7. The control circuit of the beauty instrument according to claim 1, characterized in that: Also includes: A humidity detection unit connected to the control unit, the humidity detection unit is disposed in the housing, and the humidity detection unit is used to detect humidity data in the housing; The control unit is further configured to, when the humidity data is greater than a preset humidity threshold, stop outputting the second direct current and continue outputting the first direct current.

8. The control circuit of the beauty instrument according to claim 1, characterized in that: The near infrared light unit includes at least one halogen lamp and / or a xenon lamp.

9. The control circuit of the beauty instrument according to claim 1, characterized in that: The pulse light triggering unit includes at least one xenon lamp.

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

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