Identification circuit and skin treatment device

Abstract

The utility model provides an identification circuit and a skin treatment device. The identification circuit comprises a detection circuit and a control circuit. The detection circuit is used for being electrically connected with the installed light filtering assembly and outputting a detection signal corresponding to the installed light filtering assembly, the detection circuit is configured to form a detection loop when being electrically connected with the light filtering assembly, and the detection circuit is further configured to form different detection loops when being electrically connected with light filtering assemblies of different models. The control circuit is electrically connected with the detection circuit and used for determining the model of the installed filtering assembly according to the detection signal. The identification circuit can identify the model of the light filtering assembly electrically connected with the identification circuit, so that the skin treatment device comprising the identification circuit has the function of detecting the model of the installed light filtering assembly.

Description

Technical Field

[0001] This application relates to the technical field of electronic devices, and in particular, to an identification circuit and a skin treatment device. Background Art

[0002] In the related art, skin treatment devices such as hair removal devices and skin rejuvenation devices can be configured with filter components of various models. The wavelength ranges of the pulsed light that can be filtered by filter components of different models are different. During the use of the skin treatment device by the user, the corresponding model of the filter component can be selected and installed according to the actual functional requirements. The existing skin treatment devices lack the function of detecting the model of the filter component. Summary of the Utility Model

[0003] In view of the above, it is necessary to provide an identification circuit and a skin treatment device, which can solve the problem that the existing skin treatment device cannot determine the model of the installed filter component.

[0004] In a first aspect, an embodiment of the present application provides an identification circuit, including: a detection circuit, configured to be electrically connected to the installed filter component and output a detection signal corresponding to the installed filter component. Among them, the detection circuit is configured to form a detection loop when electrically connected to the filter component, and the detection circuit is further configured to form different detection loops when electrically connected to filter components of different models; a control circuit, electrically connected to the detection circuit, and the control circuit is used to determine the model of the installed filter component according to the detection signal.

[0005] The identification circuit of this solution can identify the model of the filter component electrically connected thereto, so that the skin treatment device including this identification circuit has the function of detecting the model of the installed filter component.

[0006] In a possible implementation manner, the detection circuit includes a plurality of detection terminals. The detection circuit is configured that when electrically connected to the installed filter component, at least two of the plurality of detection terminals are used to be electrically connected to the installed filter component to form a detection loop; the detection circuit is further configured that when electrically connected to filter components of different models, different combinations of detection terminals are respectively electrically connected to filter components of different models to form different detection loops.

[0007] In a possible implementation manner, the detection circuit further includes a plurality of voltage dividing circuits connected in series. The plurality of detection terminals are correspondingly connected to both ends of the plurality of voltage dividing circuits. The detection circuit is configured that when electrically connected to the filter component, at least two of the plurality of detection terminals are used to be electrically connected to the conductors on the installed filter component to form a detection loop.

[0008] In a possible implementation, there is a common terminal between two adjacent voltage-dividing circuits among a plurality of serially-connected voltage-dividing circuits; the other end of the first voltage-dividing circuit among the plurality of serially-connected voltage-dividing circuits is a signal access terminal, and the other end of the last voltage-dividing circuit among the plurality of serially-connected voltage-dividing circuits is a grounding terminal; the common terminal, the signal access terminal, and the grounding terminal are respectively connected to a plurality of detection terminals in one-to-one correspondence; the signal access terminal is directly or indirectly connected to a supply voltage, and the grounding terminal is directly or indirectly grounded.

[0009] In a possible implementation, one of the common terminals is used as an output terminal, or the grounding terminal is also used as an output terminal, and the voltage value of the output terminal is used as the detection signal; and / or,

[0010] Each voltage-dividing circuit among the plurality of voltage-dividing circuits includes one or more resistors. In the case where any one of the plurality of voltage-dividing circuits includes a plurality of resistors, the plurality of resistors have a series and / or parallel electrical connection structure; and / or,

[0011] At least two of the plurality of detection terminals are also used as access identification terminals for the installed optical filter component, and the control circuit is further configured to determine whether the installed optical filter component is installed in place according to the level state of the access identification terminals; and / or,

[0012] The detection circuit further includes a first surge protection circuit and a second surge protection circuit. Both the first surge protection circuit and the second surge protection circuit include a first end and a second end. The first end of the first surge protection circuit is electrically connected to the other end of the first voltage-dividing circuit, the second end of the first surge protection circuit is directly or indirectly grounded, the first end of the second surge protection circuit is electrically connected to the output terminal, and the second end of the second surge protection circuit is directly or indirectly grounded.

[0013] In a possible implementation, the detection circuit further includes a grounding terminal and a plurality of detection branches. The plurality of detection terminals include a first detection terminal and a plurality of second detection terminals. The first detection terminal is electrically connected to the grounding terminal to be configured to be used for electrically connecting with the optical filter component when the detection circuit is electrically connected to optical filter components of different models; the first ends of the plurality of detection branches are all directly or indirectly connected to a supply voltage; the plurality of second detection terminals are respectively electrically connected to the second ends of the plurality of detection branches in one-to-one correspondence. The plurality of second detection terminals are configured to, when the detection circuit is electrically connected to optical filter components of different models, at least one of the plurality of second detection terminals is used for electrically connecting with the installed optical filter component to form a detection loop, and the level states of the plurality of second detection terminals form a detection signal.

[0014] In a possible implementation, the detection circuit further includes a connector. The connector has a plurality of signal terminals, and the plurality of signal terminals are respectively electrically connected to the plurality of second detection terminals in one-to-one correspondence; and / or,

[0015] At least one of the multiple second detection terminals is further configured to serve as an access identification terminal for the installed optical filter component, and the control circuit is further configured to determine whether the installed optical filter component is properly installed according to the level state of the access identification terminal; and / or,

[0016] The detection circuit further includes a plurality of surge protection circuits. Each of the plurality of surge protection circuits includes a first end and a second end. The first ends of the plurality of surge protection circuits are electrically connected to the plurality of second detection terminals in a one-to-one correspondence, and the second ends of the plurality of surge protection circuits are all directly or indirectly grounded; and / or,

[0017] Each of the plurality of detection branches includes one or more resistors. In the case where any one of the plurality of detection branches includes a plurality of resistors, the plurality of resistors have a series and / or parallel electrical connection structure.

[0018] In a second aspect, an embodiment of the present application provides a skin treatment device, including a device main body and a plurality of optical filter components. The device main body includes a light source and the above-mentioned identification circuit. The plurality of optical filter components are selectively detachably installed on the light-emitting path of the light source, and the optical filter components are electrically connected to the identification circuit to form a detection loop.

[0019] In a possible implementation manner, the skin treatment device further includes a driving circuit for driving the light source to emit light. The driving circuit is also electrically connected to the control circuit, and the control circuit is further configured to adjust the driving signal output by the driving circuit for driving the light source to emit light according to the model of the installed optical filter component; and / or,

[0020] A slot located on the light-emitting path of the light source and a plug socket communicating with the slot are provided on the device main body. The plurality of optical filter components are used to be selectively detachably installed in the slot through the plug socket.

[0021] In a possible implementation manner, the optical filter component includes a conductive portion formed by a conductor. The conductive portion has an avoidance space, and the conductive portion is used to be electrically connected to at least two detection terminals of the detection circuit, and the avoidance space is used to avoid the remaining detection terminals. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following will briefly introduce the drawings in the embodiments. It should be understood that the following drawings only show some embodiments of the present disclosure, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 A three-dimensional view of the skin treatment device according to the embodiment of the present disclosure;

[0024] Figure 2 is Figure 1Schematic diagram of the skin treatment device after the filter component is removed;

[0025] Figure 3 is Figure 1 An exploded view of the skin treatment device;

[0026] Figure 4 is Figure 1 A cross-sectional view of the skin treatment device;

[0027] Figure 5 is Figure 4 A partially enlarged view of the skin treatment device;

[0028] Figure 6 is Figure 1 An exploded view of some components of the skin treatment device;

[0029] Figure 7 is Figure 1 Another exploded view of the skin treatment device;

[0030] Figure 8 is Figure 7 A schematic diagram of some components;

[0031] Figure 9 is Figure 7 An exploded view of some components;

[0032] Figure 10 is Figure 8 A top view of some components;

[0033] Figure 11 is Figure 10 A side view, with some components exploded and unfolded;

[0034] Figure 12 is Figure 10 A three-dimensional exploded view;

[0035] Figure 13 shows another filter component with a different filter component model from that of Figure 11 ;

[0036] Figure 14 is Figure 2 An exploded view of the filter component in the skin treatment device;

[0037] Figure 15 is Figure 1 Another exploded view of the skin treatment device;

[0038] Figure 16 is Figure 1 An exploded view of the light-transmitting bracket and the flexible shielding member;

[0039] Figure 17For Figure 16 Partial cross-sectional view of the light-transmitting bracket and the flexible shielding member of Figure 16 that are not explosively deployed;

[0040] Figure 18 Schematic diagram showing the flexible shielding member accommodated in the avoidance space after inserting the filter assembly;

[0041] Figure 19 For Figure 17 Schematic diagram of another embodiment of Figure 17 ;

[0042] Figure 20 For Figure 1 Three-dimensional view of some components of the skin treatment device of Figure 1 ;

[0043] Figure 21 For Figure 20 Exploded view of Figure 20 ;

[0044] Figure 22 For Figure 20 Schematic diagram after hiding the lamp tube of the structure in Figure 20 ;

[0045] Figure 23 For Figure 20 Cross-sectional view of the structure of Figure 20 in a plane perpendicular to the length direction of the lamp tube;

[0046] Figure 24 For Figure 1 Another exploded view of the skin treatment device of Figure 1 ;

[0047] Figure 25 For Figure 1 Another exploded view of the skin treatment device of Figure 1 ;

[0048] Figure 26 For Figure 1 Schematic diagram of the structure when another air passage hole is adopted for the reflector cup of Figure 1 ;

[0049] Figure 27 For Figure 1 Schematic diagram of the structure of the skin treatment device of Figure 1 after setting the reflector;

[0050] Figure 28 For Figure 27 Three-dimensional view of the bracket and the reflector in Figure 27 ;

[0051] Figure 29 For Figure 1 Schematic diagram of the structure of the skin treatment device of Figure 1 after setting another reflector;

[0052] Figure 30 Partial structure schematic diagram of another skin treatment device of the present disclosure embodiment;

[0053] Figure 31 For Figure 30 Top view of some structures of Figure 30 ;

[0054] Figure 32 For Figure 30 3D view of a partial structure of

[0055] Figure 33 For Figure 30 Exploded view of the filter assembly of the skin treatment device of

[0056] Figure 34 Schematic diagram of a partial structure of another skin treatment device according to an embodiment of the present disclosure;

[0057] Figure 35 For Figure 34 Exploded view of

[0058] Figure 36 Schematic diagram of a partial structure of another skin treatment device according to an embodiment of the present disclosure;

[0059] Figure 37 For Figure 36 Exploded view of a partial structure of

[0060] Figure 38 For Figure 36 Exploded view of, and showing multiple different models of filter assemblies;

[0061] Figure 39 For Figure 38 Exploded view of the filter assembly in

[0062] Figure 40 Schematic diagram of the structure of another filter assembly according to this embodiment, showing multiple different models of filter assemblies;

[0063] Figure 41 For Figure 40 Exploded view of the filter assembly in

[0064] Figure 42 Schematic diagram of the functional modules of the skin treatment device according to an embodiment of the present disclosure;

[0065] Figure 43 Schematic diagram of the functional modules of the identification circuit according to an embodiment of the present disclosure;

[0066] Figure 44 Schematic diagram of the functional modules of the detection circuit according to an embodiment of the present disclosure;

[0067] Figure 45 For Figure 44 Schematic diagram of the circuit structure of an embodiment of the detection circuit shown in

[0068] Figure 46 Schematic diagram of the functional modules of another detection circuit according to an embodiment of the present disclosure;

[0069] Figure 47 is Figure 46 a schematic diagram of the circuit structure of an embodiment of the detection circuit shown;

[0070] Figure 48 a schematic diagram of the functional modules of another detection circuit according to an embodiment of the present disclosure;

[0071] Figure 49 a schematic diagram of the functional modules of another detection circuit according to an embodiment of the present disclosure;

[0072] Figure 50 is Figure 49 a schematic diagram of the circuit structure of an embodiment of the detection circuit shown;

[0073] Figure 51 a schematic diagram of the functional modules of another detection circuit according to an embodiment of the present disclosure;

[0074] Figure 52 is Figure 51 a schematic diagram of the circuit structure of an embodiment of the detection circuit shown;

[0075] Figure 53 a schematic diagram of the functional modules of the device main body according to an embodiment of the present disclosure.

[0076] Description of the main component symbols:

[0077] 1000-skin treatment device; 10-device body; 11, 11a, 11b, 11c, 11d-filter assembly; 12-housing; 13-optical system; 14-light source bracket; 15-translucent bracket; 16-heat dissipation system; 17-main control board; 18-power supply; 19-upper shell; 20-lower shell; 21-front shell; 22-light source; 23-lamp tube; 24-reflective cup; 25-fixed filter; 26-translucent member; 27-electrical connection pin; 28-first peripheral side panel; 29-second peripheral side panel; 30-third peripheral side panel; 31-fourth peripheral side panel; 32-U-shaped frame; 33-covering board; 34-skin color recognition assembly; 35-skin color recognition circuit board; 36-skin color recognition sensor; 37-fill light; 38- First protrusion; 39-second protrusion; 40-second protrusion; 41-bend hook; 42-first protrusion; 43-light shielding tube; 44-light guide; 45-translucent cover; 46-light guide column; 47-sensed part; 48-sensing component; 49-sensing circuit board; 50-trigger circuit; 51-trigger switch; 52-trigger part; 53-first sensing circuit board; 54-L-shaped circuit board; 55-protrusion; 56-abutment; 57-second sensing circuit board; 58-conductive probe; 59, 59-1, 59a, 59a-1, 59b, 59c, 59d-conductive part; 60-filter model identification circuit; 61-conductive probe; 62-filter mounting frame; 63-filter; 64-main frame; 65-holding Holder; 66-plug-in section; 67-protruding section; 68-clamping protrusion; 69-insertion section; 70-convex edge; 71-flexible shielding member; 72-connecting portion; 73-flexible shielding sheet; 74-support section; 75-shielding section; 76-first clamping wall; 77-second clamping wall; 78-third clamping wall; 79-front frame section; 80-rear frame section; 81-bottom wall; 82-side wall; 83-end wall; 84-connecting column; 85-peripheral structure; 86-main cup body; 87-fixed support foot; 88-folded edge; 89-electrode; 90-shading portion; 91-fan; 92-heat sink assembly; 93-heat sink frame; 94-heat sink; 95-refrigeration sheet; 96-reflective member; 97-fixed frame; 98-U-shaped circuit board; 99-rotating member ;100-protruding plate;101-clamping structure;102-clamping plate;103-plug-in section;104-conductive spring;105-spring frame;106-welding sheet;107-conductive contact part;108-connection seat;109-metal frame member;110-first metal plate;111-second metal plate;112-side metal plate;113-third metal plate;114-folding edge;115-insulating protrusion;116-end member;C1-missing groove;C2-slot;C3-sunk groove;C4-installation groove;C5-filter groove;C6-clamping groove;C7-channel groove;C8-avoiding missing groove;C9-crease groove;f1-gap;f2-clamping gap;f3-clamping gap;K1-light outlet;K2-plug-in port;K3-skin color recognition light opening; K4-through hole; K5-snap-fit ​​hole; K6-through hole; K7-air flow outlet; K8-air hole; K9-probe hole; K21-air inlet; K22-air outlet; K31-air inlet; K32-air outlet; K51-air inlet; K52-air outlet; P1-reflecting surface; P2-reflecting surface; P31-side of the first circle; P32-side of the second circle; P33-side of the third circle; P 41-trigger surface; P42-conductive surface; Q1-internal space; Q2-installation cavity; Q3-head installation space; Q4-avoidance space; S1-light transmission area; T11-air inlet channel; T12-air outlet channel; T21-first air flow channel; T22-second air flow channel; T3-light outlet channel; T4-skin color recognition light channel; W1-avoidance position; X-light outlet direction; Y1-plug-in direction; Y2-lamp tube length direction; 1001-identification 1002-detection circuit; 1003-control circuit; 1004a, 1004b, 1004c, 1004d-voltage divider circuit; TP1, TP2, TP3, TP4, TP5-detection terminal; IN1-signal access terminal; GND1, GND2-ground terminal; Vcc-power supply voltage; OUT1, OUT2, OUT3, OUT4-output terminal; R1, R2, R3, R4, R5, R6, R7-resistance; 1005a-first surge protection circuit; 1005b-second surge protection circuit; D1-bidirectional TVS diode; CON1-first connector; CON2-second connector; 1006a, 1006b, 1006c-detection branch; 1007a-third surge protection circuit 1007a; 1007b-fourth surge protection circuit; 1007c-fifth surge protection circuit; 1008-driving circuit. ;

[0078] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. DETAILED DESCRIPTION

[0079] In the following, 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 indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, words such as "exemplary", "or", "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary", "or", "for example" is intended to present related concepts in a concrete way.

[0080] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used in the description of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. It should be understood that unless otherwise stated in this application, " / " means "or". For example, A / B can mean A or B. The "and / or" in this application is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone, these three situations. "At least one" means one or more. "A plurality" means two or more than two. For example, at least one of a, b, or c can mean: a, b, c, a and b, a and c, b and c, a, b, and c, these seven situations.

[0081] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. When an element is considered to be "disposed on" another element, it can be directly disposed on the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0082] Some embodiments of this application will be described in detail. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0083] See Figure 1 , this embodiment provides a skin treatment device 1000, which can be a hair removal device, a skin rejuvenation device, a hair growth device or other skin treatment device 1000. By emitting appropriate treatment light (such as light in a special band or different types of light) acting on the skin, effects such as hair removal, skin rejuvenation, hair growth, whitening, freckle removal, and wrinkle removal can be achieved.

[0084] See Figure 2 , in this embodiment, the skin treatment device 1000 includes a device main body 10 and a filter component 11, and the filter component 11 is detachably fitted to the device main body 10. For example Figure 1 , when the filter component 11 is in the state of being installed on the device main body 10, the light emitted by the light source of the skin treatment device 1000 will be filtered by the filter component 11 and then emitted to obtain the treatment light; while Figure 2 , when the filter component 11 is pulled out from the device main body 10, the light emitted by the light source of the skin treatment device 1000 will not be affected by the filter component 11.

[0085] See Figure 3and Figure 4 In this embodiment, the device main body 10 mainly includes a housing 12, an optical system 13, a light source bracket 14, a light-transmitting bracket 15, a heat dissipation system 16, a main control board 17, and a power supply 18. The light source bracket 14, the light-transmitting bracket 15, the optical system 13, the heat dissipation system 16, the main control board 17, and the power supply 18 are respectively installed in the housing 12. The optical system 13 is used to provide processed light or cooperate with the filter component 11 to provide processed light. The light source bracket 14 and the light-transmitting bracket 15 are used to support the optical system 13 or other components. The heat dissipation system 16 is used to dissipate heat from the skin treatment device 1000. The main control board 17 is used to control the light output of the optical system 13 and / or control the operation of the heat dissipation system 16 for heat dissipation. The power supply 18 supplies power to each electrical component (such as the main control board 17).

[0086] In this embodiment, the housing 12 has an internal space Q1 and a light outlet K1. The internal space Q1 is used to accommodate other components of the skin treatment device 1000 (such as the light source bracket 14, the light-transmitting bracket 15, the optical system 13, etc.). The light outlet K1 is used for the processed light generated by the skin treatment device 1000 to be emitted along the light emission direction X. Among them, the processed light refers to the light that can irradiate the skin to treat the skin, such as continuous light or intense pulsed light that meets certain conditions.

[0087] In this embodiment, the housing 12 includes an upper shell 19, a lower shell 20, and a front shell 21. The upper shell 19, the lower shell 20, and the front shell 21 enclose the internal space Q1. The light outlet K1 is opened on the front shell 21. The upper shell 19, the lower shell 20, and the front shell 21 can be detachably connected, for example, by screw connection, bonding, snap connection, etc.

[0088] In other embodiments, the housing 12 can be in other splitting forms, for example, composed of upper and lower half shells, which are not limited herein.

[0089] In this embodiment, the main control board 17 can be a printed circuit board (PCB), which can be fixedly installed in the internal space Q1 by screw connection or other means.

[0090] The main control board 17 can have a switch element. The user presses a button cover exposed on the housing 12, and the button cover will press down the switch element to start or stop the skin treatment device 1000.

[0091] The power supply 18 is installed in the internal space Q1 and electrically connected to the main control board 17, used to supply power to the main control board 17 and supply power to other electrical components of the skin treatment device 1000 through the main control board 17.

[0092] The power supply 18 can adopt a rechargeable battery to facilitate the replenishment of electric energy.

[0093] See in conjunction with Figure 5 andFigure 6 , the optical system 13 includes a light source 22, a reflector cup 24, a fixed filter 25, and a light transmissive member 26. The light generated by the light source 22 is reflected by the reflector cup 24 in the light output direction X, and then sequentially filtered by the filter assembly 11 and the fixed filter 25, and then exits after passing through the light transmissive member 26. The light exiting from the light transmissive member 26 can be used as treatment light for skin treatment.

[0094] The light source 22 is used to generate light. In this embodiment, the light source 22 is a lamp tube 23, and the lamp tube 23 is fixedly connected and electrically connected to the main control board 17 (see Figure 3 ), and the lamp tube 23 can be controlled by the main control board 17 to generate light.

[0095] According to the different types of light generated by the lamp tube 23, the skin treatment device 1000 can be divided into different types. For example, the lamp tube 23 can be used to generate laser light, and it is a laser lamp tube, and the skin treatment device 1000 is a laser type skin treatment device; for example, the lamp tube 23 can be used to generate IPL light (Intense Pulsed Light), and it is an IPL lamp tube (such as a xenon lamp, etc.), and the skin treatment device 1000 is an intense pulsed light type skin treatment device; or the lamp tube 23 can be an LED lamp tube, and so on.

[0096] In this embodiment, the following mainly takes the lamp tube 23 as a xenon lamp as an example for description. The light emission principle of this type of skin treatment device 1000 is as follows: The capacitor is connected to the power supply 18, and the voltage is boosted by the voltage conversion component to charge the capacitor. When the capacitor charge reaches the preset value and the controller receives the trigger signal, the electrical energy in the capacitor is released, and the instantaneous voltage can reach several hundred volts, thereby exciting the lamp tube 23 to instantaneously emit intense pulsed light, and thus completing one light emission.

[0097] In other embodiments, the light source 22 can also be of other types or shapes other than the lamp tube 23, such as a single or multiple point light sources, etc., which are not limited herein.

[0098] Continue to refer to Figure 5 and Figure 6 , the light source bracket 14 is installed in the internal space Q1. Optionally, the light source bracket 14 can be directly or indirectly fixedly connected to the housing 12, and the fixing method can be snap connection, threaded connection, or other suitable connection methods.

[0099] The light source bracket 14 has an installation cavity Q2, the reflector cup 24 is disposed in the installation cavity Q2, the lamp tube 23 extends into the installation cavity Q2, and is disposed on the side of the reflector cup 24 away from the light source bracket 14. The lamp tube 23 can be electrically connected and fixedly connected to the main control board 17 by the power connection pin 27 (see Figure 3 ) that passes through the installation cavity Q2. In this way, the light emitted by the light source 22 can be reflected by the reflector cup 24 to the side of the light output direction X.

[0100] Continue to refer to Figure 5 and Figure 6 , the light-transmitting bracket 15 is installed in the internal space Q1. Optionally, the light-transmitting bracket 15 can be directly or indirectly fixedly connected to the housing 12, and the fixing method can be snap connection, threaded connection or other suitable connection methods.

[0101] In this embodiment, the light-transmitting bracket 15 is connected to the front end of the light source bracket 14 in the light-emitting direction X, and is used to install components such as the light-transmitting member 26, the fixed filter 25, and the filter assembly 11. The light-transmitting bracket 15 is provided with a slot C2 for accommodating the inserted filter assembly 11.

[0102] Optionally, the front end of the light-transmitting bracket 15 in the light-emitting direction X is connected to the front shell 21 to improve the installation firmness of the light-transmitting bracket 15. The light-transmitting bracket 15 has a light-emitting channel T3, one end of the light-emitting channel T3 communicates with the installation cavity Q2 of the light source bracket 14, and the other end corresponds to the light-emitting port K1 of the housing 12. It should be noted that the light-transmitting bracket 15 mentioned in this embodiment refers to that it has a light-emitting channel T3 through which light can pass, rather than referring to its own material as a light-transmitting material.

[0103] In this embodiment, the light-transmitting bracket 15 can be set as a rectangular frame mainly surrounded by four peripheral side plates. These four peripheral side plates are respectively named the first peripheral side plate 28, the second peripheral side plate 29, the third peripheral side plate 30 and the fourth peripheral side plate 31. Among them, the first peripheral side plate 28 and the second peripheral side plate 29 are opposite, and the third peripheral side plate 30 and the fourth peripheral side plate 31 are opposite.

[0104] The entrance of the slot C2 is arranged on one side of the first peripheral side plate 28, so that the filter assembly 11 can be inserted into the slot C2 from one side of the first peripheral side plate 28.

[0105] The third peripheral side plate 30 is located close to the upper shell 19, and the fourth peripheral side plate 31 is located close to the lower shell 20.

[0106] In this embodiment, optionally, the first peripheral side plate 28, the fourth peripheral side plate 31 and the second peripheral side plate 29 can be combined into an integral U-shaped frame 32 (see the combination in Figure 9 ), the third peripheral side plate 30 serves as a cover plate 33, and the cover plate 33 is detachably covered on the opening of the U-shaped frame 32, thereby enclosing the light-emitting channel T3 of the light-transmitting bracket 15. In this way, when it is necessary to install the light-transmitting member 26 and the fixed filter 25 on the light-transmitting bracket 15, the light-transmitting member 26 and the fixed filter 25 can be conveniently loaded from the opening side of the U-shaped frame 32, and then the cover plate 33 can be covered. The structure is simple and the assembly is convenient.

[0107] In other embodiments, the first circumferential side plate 28, the second circumferential side plate 29, the third circumferential side plate 30, and the fourth circumferential side plate 31 may also be integrally designed in whole or in part, which is not limited herein. For example, the first circumferential side plate 28 and the third circumferential side plate 30 may be integrated, and the second circumferential side plate 29 and the fourth circumferential side plate 31 may be integrated, and so on.

[0108] Continuing to refer to Figure 5 and Figure 6 , in this embodiment, one end of the light-transmitting member 26 is installed in the light-emitting channel T3 of the light-transmitting bracket 15, and the other end extends into and fits into the light-emitting port K1 on the front case 21 of the housing 12.

[0109] The light-transmitting member 26 may be a light-transmitting crystal, such as sapphire. The surface on the light-emitting side thereof, in addition to serving as the light-emitting surface for processing light, can also be used for fitting against the skin. Thus, during use, the heat generated by the skin due to the processing light can be conducted to the light-transmitting member 26, reducing the burning sensation of the skin and achieving an ice-pack effect, thereby improving the user experience. Of course, the light-transmitting member 26 can also be made of other suitable optical materials, which is not limited herein.

[0110] In this embodiment, the fixed filter 25 is installed in the light-emitting channel T3 of the light-transmitting bracket 15 and is located between the light-transmitting member 26 and the reflector cup 24.

[0111] The fixed filter 25 can filter the light emitted by the lamp tube 23 to select the light of the required wavelength for emission. There can be one or multiple fixed filters 25 to achieve a combined filtering effect.

[0112] In this embodiment, optionally, the fixed filter 25 can be installed in the light-emitting channel T3 of the light-transmitting bracket 15 through the fixing frame 97.

[0113] Continuing to refer to Figure 5 and Figure 6 , the filter assembly 11 in this embodiment can be inserted and fitted into the slot C2 of the light-transmitting bracket 15 or can be pulled out from the slot C2.

[0114] In this embodiment, the filter assembly 11 and the slot C2 can be located on the side of the fixed filter 25 away from the light-transmitting member 26. In other embodiments, the filter assembly 11 and the slot C2 can also be located between the fixed filter 25 and the light-transmitting member 26.

[0115] In this embodiment, the light-transmitting member 26, the fixed filter 25, and the filter assembly 11 are sequentially corresponding to the lamp tube 23 and the reflector cup 24 along the light-emitting direction X. Thus, the light emitted by the lamp tube 23, directly or after being reflected and condensed by the reflector cup 24, passes through the filter assembly 11 and the fixed filter 25 for filtering, and then is emitted through the light-transmitting member 26 for light treatment of the skin.

[0116] Refer to in cooperation withFigures 7 - 9 In this embodiment, the skin treatment device 1000 is further provided with a skin color recognition component 34. The skin color recognition component 34 is used to recognize the skin color of the object to be treated.

[0117] During use, the skin color of the object to be treated can be recognized in advance by the skin color recognition component 34, and then an appropriate light filtering component 11 can be selected according to the skin color, and / or appropriate parameters (such as light output power) can be set, and then the skin of the object to be treated can be treated with the treatment light. For skin colors that are not suitable for the current skin treatment device 1000 to treat, the skin treatment can be stopped or other treatment devices can be replaced to avoid ineffective treatment operations or damage to the skin during the treatment process.

[0118] In addition, the skin colors of different parts of the same treatment object may vary. For example, the skin of parts that are more exposed, such as the arms and calves, may be darker in color, while the skin of parts of the body that are usually covered by clothing may be lighter in color. The skin color recognition component 34 in this embodiment can also be used in real time in cooperation with the treatment light during skin treatment. For example, during the process or interval of treating the skin with the treatment light, the skin color information of the current treatment part can be obtained in real time through the skin color recognition component 34, so as to control the skin treatment device 1000 to adjust appropriate parameters (such as light output power) or give a prompt to indicate the operator to replace an appropriate model of the light filtering component 11, etc.

[0119] In this embodiment, the skin color recognition component 34 is arranged on the outer periphery of the light-transmitting bracket 15. There is a head mounting space Q3 formed by spacing between the housing 12 and the light-transmitting bracket 15 (see Figure 5 ), and the skin color recognition component 34 is accommodated in the head mounting space Q3. Among them, the head mounting space Q3 is a part of the internal space Q1 of the housing 12.

[0120] In this embodiment, the light-transmitting bracket 15 is located at the front part of the skin treatment device 1000 near the front housing 21. In order to adapt to the opening of the light outlet K1 for cooperating with the light-transmitting bracket 15, the front housing 21 at the front part of the housing 12 needs to have a certain peripheral structure 85. In this way, the part of the upper housing 19 or the lower housing 20 of the housing 12 near the front housing 21 is offset by a certain distance relative to the light-transmitting bracket 15 at the light outlet K1 and the light-transmitting bracket 15, so that there is the above-mentioned head mounting space Q3 between the front part of the housing 12 and the light-transmitting bracket 15.

[0121] In this embodiment, by making full use of the head mounting space Q3 to arrange the skin color recognition component 34, the structure is compact, and the skin color recognition component 34 is arranged at the front part of the skin treatment device 1000. Only by opening another skin color recognition light opening K3 on the front housing 21, it is convenient to realize that the skin color recognition component 34 emits light forward and receives and processes the skin reflected light, so as to realize the skin color recognition function.

[0122] In this embodiment, the light-emitting direction of the skin color recognition component 34 and the light-emitting direction X of the processing light both face forward, which can facilitate real-time skin color recognition operations and avoid repeatedly switching the orientation of the skin treatment device 1000 when skin color recognition and skin treatment need to be carried out alternately.

[0123] In contrast, in some known technologies, the light-emitting orientation of the skin color recognition unit is not consistent with that of the processing light (such as being set at the tail of the device), which is obviously inconvenient for real-time skin color recognition and the operation is relatively complex.

[0124] Moreover, in the skin treatment device 1000 of this embodiment, the skin color recognition component 34 is arranged on the outer periphery of the light-transmitting bracket 15. Blocked by the light-transmitting bracket 15, the processing light for skin treatment passing through the light-transmitting member 26 will not or will less irradiate on the skin color recognition component 34, reducing or avoiding the influence of the processing light on the skin color recognition component 34.

[0125] Continue to refer to Figures 7 - 9 , in this embodiment, the skin color recognition component 34 includes a skin color recognition circuit board 35, a skin color recognition sensor 36, and a supplementary light 37. The skin color recognition sensor 36 and the supplementary light 37 are respectively arranged on the skin color recognition circuit board 35. The supplementary light 37 is used to emit recognition light, and the reflected light obtained after the recognition light is reflected by the skin is received by the skin color recognition sensor 36, and the skin color can be recognized after being processed.

[0126] The skin color recognition sensor 36 can be, for example, a light intensity sensor. The light intensity of the reflected light after the recognition light is reflected by different skin colors is different, and the skin color recognition sensor 36 recognizes the skin color by analyzing the light intensity information of the received reflected light.

[0127] In other embodiments, the skin color recognition sensor 36 can also be other types of optical sensors, which are not limited herein.

[0128] The supplementary light 37 can be a common LED lamp or the like, which is not limited herein.

[0129] In this embodiment, the skin color recognition circuit board 35 is fixedly connected to the outer periphery of the light-transmitting bracket 15. For example, the connection between the skin color recognition circuit board 35 and the light-transmitting bracket 15 is a snap connection, a threaded connection, or an adhesive connection, which is not limited herein.

[0130] In this embodiment, the skin color recognition circuit board 35 is snap-connected to the light-transmitting bracket 15. For example, a first convex portion 38 and a second convex portion 39 protrude from the outer surface (defined as the third circumferential side surface P33) of the third circumferential side plate 30 (i.e., the covering plate 33) of the light-transmitting bracket 15. Among them, the first convex portion 38 and the second convex portion 39 are spaced along the light-emitting direction X of the skin treatment device 1000, and a snap-fit gap f2 is defined between the first convex portion 38 and the second convex portion 39. The skin color recognition circuit board 35 is fitted into the snap-fit gap f2 with the board surface facing the light-emitting direction X. For example, the board surface of the skin color recognition circuit board 35 is perpendicular to the light-emitting direction X. The width of the snap-fit gap f2 can be slightly larger than the thickness of the skin color recognition circuit board 35. The second convex portion 39 includes two second convex blocks 40, and a hook portion 41 is provided at the end of at least one second convex block 40 away from the third circumferential side surface P33. The hook portion 41 abuts against the side of the skin color recognition circuit board 35 away from the third circumferential side surface P33, thereby reliably fixing the skin color recognition circuit board 35.

[0131] Optionally, a sinking groove C3 is formed by concaveing the position of the third circumferential side surface P33 corresponding to the snap-fit gap f2. The side of the skin color recognition circuit board 35 close to the third circumferential side surface P33 extends into the sinking groove C3. By providing the concave sinking groove C3 to accommodate part of the skin color recognition circuit board 35, the height space occupied by the skin color recognition circuit board 35 can be reduced, making the structure more compact.

[0132] In this embodiment, the first convex portion 38 is located on the board surface of the skin color recognition circuit board 35 on the side facing the light outlet K1 of the skin treatment device 1000; the first convex portion 38 includes two first convex blocks 42, and the skin color recognition sensor 36 and the supplementary light 37 are clamped between the two first convex blocks 42. By providing two spaced first convex blocks 42, the skin color recognition circuit board 35 can be more reliably positioned, and the skin color recognition sensor 36 and the supplementary light 37 are clamped between the two first convex blocks 42. The two first convex blocks 42 can play a role in blocking light, reducing the influence of external light on the skin color recognition sensor 36 and the supplementary light 37, and also reducing the leakage of light from the supplementary light 37.

[0133] The skin color recognition circuit board 35 can be electrically connected to the main control board 17 of the skin treatment device 1000 through a flexible printed circuit (FPC) to realize signal transmission with the main control board 17.

[0134] See Figure 9 (It can be combined with reference to Figure 5 ), in this embodiment, the housing 12 is provided with a skin color recognition light opening K3, and the skin color recognition light opening K3 corresponds to the skin color recognition sensor 36 and the supplementary light 37 to allow the recognition light emitted by the supplementary light 37 to exit and the reflected light of the recognition light emitted by the supplementary light 37 after being reflected by the skin to enter.

[0135] Optionally, the skin treatment device 1000 further includes a light-shielding cylinder 43. The light-shielding cylinder 43 encloses a skin color recognition light channel T4. One end of the light-shielding cylinder 43 surrounds the outer periphery of the skin color recognition sensor 36 and the supplementary light 37, and the other end is fitted to the skin color recognition light opening K3. In this way, the influence of external light on the skin color recognition component 34 can be further reduced.

[0136] Optionally, the skin treatment device 1000 further includes a light guide member 44. The light guide member 44 includes an integrally formed light-transmitting cover plate 45 and a light guide column 46. The light-transmitting cover plate 45 covers the skin color recognition light opening K3, and the light guide column 46 is fitted to the skin color recognition light channel T4. Covering the skin color recognition light opening K3 with the light-transmitting cover plate 45 can achieve a dust-proof sealing effect, and the light guide column 46 can achieve a light guiding effect, facilitating the entry and exit of light from the skin color recognition light channel T4.

[0137] In this embodiment, the filter component 11 is set to be pluggable. Therefore, the skin treatment device 1000 can be used with the filter component 11 inserted, or can be used with the filter component 11 removed. Alternatively, multiple filter components 11 of different models can also be configured for the skin treatment device 1000 for selection according to needs. Among them, the filter components 11 of different models are, for example, filter components 11 that can filter light of different wavelength bands.

[0138] The skin treatment device 1000 in this embodiment also has a sensing function, which is used to sense whether the filter component 11 is plugged in place, and / or is used to sense the model of the inserted filter component 11. For this purpose, in this embodiment, the filter component 11 is provided with a sensed portion 47, and the device main body 10 is provided with a sensing component 48. When the filter component 11 is plugged and fitted into the slot C2 of the light-transmitting bracket 15, the sensed portion 47 is sensed by the sensing component 48, so as to obtain a signal indicating that the filter component 11 is plugged in place or a model signal.

[0139] These signals can be transmitted by the sensing component 48 to the main control board 17 through an FPC or other means, and after being processed by the main control board 17, they are presented in a form that can be perceived by the user (such as images, sounds, vibrations, etc.).

[0140] For example, a visible display screen can be provided on the skin treatment device 1000. When the main control board 17 receives the signal indicating that the filter component 11 is plugged in place, the background light of the display screen is changed to green; when the main control board 17 receives the signal reflecting the model of the filter component 11, the corresponding model information (the wavelength information of the filtered light) is presented on the display screen in text form.

[0141] For another example, before receiving the signal indicating that the filter component 11 is plugged in place, the main control board 17 controls the light-emitting circuit to be disconnected, thereby preventing the skin treatment device 1000 from emitting light and avoiding misoperation.

[0142] See again Figures 7 - 9 In this embodiment, the sensing component 48 includes a sensing circuit board 49 and a trigger circuit 50 disposed on the sensing circuit board 49. The trigger circuit 50 includes a trigger switch 51, and the trigger switch 51 is fixed to the sensing circuit board 49. The sensed part 47 includes a trigger part 52. When the filter component 11 is plugged in place, the trigger switch 51 is triggered by the trigger part 52, thereby giving a plugged-in place signal indicating that the filter component 11 has been plugged in place.

[0143] In this embodiment, the skin color recognition circuit board 35 is located at the third circumferential side surface P33. The sensing circuit board 49 includes a circuit board portion (defined as the first sensing circuit board 53) located at the outer side surface (defined as the first circumferential side surface P31) of the first circumferential side plate 28, and the trigger switch 51 is disposed on the first sensing circuit board 53.

[0144] The first sensing circuit board 53 and the skin color recognition circuit board 35 can be integrated into a single integrated circuit board to reduce the total number of circuit boards of the skin treatment device 1000. For example, in this embodiment, the skin color recognition circuit board 35 and the first sensing circuit board 53 are integrated into an L-shaped circuit board 54, and the board surface of the L-shaped circuit board 54 is perpendicular to the light emission direction X.

[0145] Of course, in other embodiments, the sensing circuit board 49 and the skin color recognition circuit board 35 can also be separately disposed according to structural, spatial layout or other requirements, which are not limited herein.

[0146] To accommodate the skin color recognition circuit board 35 and the first sensing circuit board 53 at the same time, the housing 12 and the cover plate 33 of the light-transmitting bracket 15 are spaced apart, and the first circumferential side plate 28 of the housing 12 and the light-transmitting bracket 15 is also spaced apart, that is, the head mounting space Q3 (seen in Figure 5 ) includes the space on one side of the third circumferential side surface P33 and the space on one side of the first circumferential side surface P31.

[0147] In this embodiment, the L-shaped circuit board 54 can be located in front of the slot C2 along the light emission direction X, so that the skin color recognition component 34 is closer to the front shell 21 side of the skin treatment device 1000. The trigger switch 51 is disposed on the board surface of the first sensing circuit board 53 behind the light emission direction X, and the orientation of the trigger switch 51 is the same as the orientation of the plug-in port K2, and the trigger switch 51 is staggered from the slot C2 along the light emission direction X. The trigger part 52 of the filter component 11 includes a protruding part 55 that protrudes from the filter component 11 toward the trigger switch 51 side along the light emission direction X, and the protruding part 55 corresponds to the trigger switch 51 of the sensing component 48 along the plugging direction Y1 of the filter component 11.

[0148] Thus, after the filter component 11 is inserted, if the filter component 11 is properly plugged in place, the protruding portion 55 serving as the sensed part 47 will trigger the trigger switch 51 of the sensing component 48, and thus will be sensed by the trigger switch 51 to obtain a signal indicating that it is plugged in place; while if the filter component 11 is not plugged in place, a signal indicating that it is plugged in place will not be obtained.

[0149] Therefore, the skin treatment device 1000 can conveniently identify whether the filter component 11 is plugged in place to ensure safe use.

[0150] Moreover, in this embodiment, the skin treatment device 1000 has the protruding portion 55 protruding laterally corresponding to the trigger switch 51 along the insertion and extraction direction Y1, so that after the filter component 11 is inserted, the sensed part 47 can press against the sensing component 48 along the insertion and extraction direction Y1, and the two will not wear against each other.

[0151] In this embodiment, optionally, the skin treatment device 1000 further includes an abutting member 56. The abutting member 56 is disposed between the protruding portion 55 and the trigger switch 51 and is used to transmit the force of the protruding portion 55 to the trigger switch 51. The switch stroke of the trigger switch 51 is along the insertion and extraction direction Y1 of the filter component 11, and the abutting member 56 is movably connected to the side of the trigger switch 51 facing the protruding portion 55.

[0152] See Figure 10 、 Figure 11 and Figure 12 , in this embodiment, the sensing circuit board 49 further includes a second sensing circuit board 57. The sensing component 48 further includes a filter type identification circuit 60 disposed on the second sensing circuit board 57. The filter type identification circuit 60 includes a plurality of conductive probes 58, and the plurality of conductive probes 58 respectively serve as detection points of the filter type identification circuit 60. The sensed part 47 includes a conductive part 59, and the conductive part 59 corresponds to some or all of the plurality of conductive probes 58, and the conductive parts 59 of different types of filter components 11 are configured to be able to conduct different combinations of conductive probes 58.

[0153] In this embodiment, the second sensing circuit board 57 is located at the second peripheral side plate 29, and the conductive part 59 is disposed at the tail end of the filter component 11 (i.e., the end of the filter component 11 away from the insertion and extraction port K2). So that when the filter component 11 is inserted in place, the conductive part 59 can abut against at least some of the conductive probes 58 to electrically conduct the contacted conductive probes 58, and thus be recognized by the filter type identification circuit 60.

[0154] In this embodiment, the second sensing circuit board 57 is separately disposed from the skin color identification circuit board 35 (visible in Figure 9 ). In other embodiments, the second sensing circuit board 57 can also be integrated with the skin color identification circuit board 35.

[0155] In this embodiment, the second sensing circuit board 57 is attached and fixed to the outer surface of the second circumferential side plate 29 (defined as the second circumferential side surface P32) with the board surface facing the end of the filter component 11. The connection between the second sensing circuit board 57 and the second circumferential side plate 29 can be bonding, threaded connection or snap connection, which is not limited herein.

[0156] Optionally, the second circumferential side plate 29 is provided with a plurality of probe through holes K9 penetrating along the insertion and extraction direction Y1. In this embodiment, the conductive probe 58 is a conductive probe 61 (such as a conductive spring pin), one end of the conductive probe 61 is fixed to the sensing circuit board 49, and the other end vertically extends out of the sensing circuit board 49, that is, the conductive probe 61 extends along the insertion and extraction direction Y1. The plurality of conductive probes 61 respectively extend into the slot C2 through the plurality of probe through holes K9, so that the conductive part 59 at the end of the filter component 11 inserted into the slot C2 can abut against the conductive probe 58 along the insertion and extraction direction Y1 of the filter component 11. Therefore, in this embodiment, the conductive part 59 as the sensed part 47 and the conductive probe 61 as part of the sensing component 48 are opposite to each other along the insertion and extraction direction Y1.

[0157] In this embodiment, when the filter component 11 is inserted along the insertion and extraction direction Y1, its conductive part 59 as the sensed part 47 abuts against the conductive probe 61 of the sensing component 48 along the insertion and extraction direction Y1, realizing the identification of the model of the filter component 11. The insertion process of the filter component 11 will not relatively rub against the conductive probe 61 of the sensing component 48, avoiding frictional loss. In some known technologies, when the filter component 11 is inserted, the side surface of the filter component 11 is contacted by a lateral elastic piece. In this technology, during the insertion process of the filter component 11, the side surface of the filter component 11 will rub against the elastic piece, and there may be a certain frictional loss after long-term use, which may affect the electrical contact and identification functions.

[0158] See Figure 11 and Figure 12 , the filter component 11 provided in this embodiment includes a filter mounting frame 62, a filter 63 and the aforementioned conductive part 59. The filter 63 is mounted on the filter mounting frame 62. The filter mounting frame 62 is provided with an inwardly concave mounting groove C4 at one end away from the insertion and extraction port K2 along the insertion and extraction direction Y1, and the conductive part 59 is mounted in the mounting groove C4.

[0159] In this embodiment, the conductive part 59 has an avoidance position W1, and the setting position of the avoidance position W1 of the conductive part 59 of the filter component 11 has a one-to-one correspondence with the model of the filter component 11. The conductive parts 59 of different models of the filter component 11 have different avoidance positions W1, so that different conductive probes 58 can be conducted, while the conductive probes 58 corresponding to the avoidance positions W1 will not be conducted by the conductive part 59. Furthermore, the filter type identification circuit 60 is made to be somewhat different, thereby realizing the discrimination of different models of the filter component 11.

[0160] For example Figure 11 As shown in Figure 11 , there are three conductive probes 61, and the three conductive probes 61 are arranged in a row at intervals along the width direction of the filter assembly 11. Correspondingly, the conductive part 59 is a conductive block, which has a clearance position W1 and corresponds to Figure 11 the rightmost conductive probe 61. Thus, when the filter assembly 11 having the conductive part 59 is inserted into the slot C2, Figure 11 the two left conductive probes 61 are conducted, while Figure 11 the rightmost one conductive probe 61 is not conducted.

[0161] Figure 13 Shows another filter assembly 11 with a different model from the filter assembly 11 in Figure 11 . Figure 13 Except that the model of the filter 63 in the filter assembly 11 in Figure 13 is different from that of the filter assembly 11 in Figure 11 (reflected in different filter bands), Figure 13 the conductive part 59-1 of the filter assembly 11 in Figure 13 is also different from the conductive part 59 in Figure 11 . Specifically, Figure 13 the conductive part 59-1 in Figure 13 has two clearance positions W1, and the two clearance positions W1 respectively correspond to the two right conductive probes 61. Therefore, when the filter assembly 11 in Figure 13 is inserted into the slot C2, only the left conductive probe 61 makes conductive contact with the conductive part 59-1.

[0162] Thus, by inserting different models of filter assemblies 11, the filter type recognition circuit 60 has different conduction modes, so that different models of filter assemblies 11 inserted can be distinguished by the differences in values such as voltage / resistance at some positions in the filter type recognition circuit 60.

[0163] Refer to Figure 14 (cooperate with and refer to Figure 11 ). In this embodiment, the filter mounting bracket 62 includes a main plate bracket 64 and a holding head 65, and the mounting groove C4 is provided in the main plate bracket 64. The main plate bracket 64 is provided with a light-transmitting area S1 and a filter slot C5, and the filter 63 is fitted in the filter slot C5 and covers the light-transmitting area S1; the entrance of the filter slot C5 is located at one end of the main plate bracket 64 away from the mounting groove C4, and the holding head 65 is inserted and fitted at one end of the entrance of the filter slot C5 and abuts against the filter 63.

[0164] When installing or replacing the filter 63 of this filter assembly 11, the filter 63 can be loaded into the filter slot C5, and then the holding head 65 is loaded to position the filter 63, and the filter 63 is convenient to disassemble and assemble. The conductive part 59 can be set to be detachably connected to the mounting groove C4. Thus, when replacing different models of filters 63, the corresponding conductive part 59 can be replaced to ensure that the model of the filter assembly 11 is correctly recognized.

[0165] In this embodiment, the holding head 65 includes an insertion section 103 and a protruding section 67. The insertion section 103 is sheet-shaped and is used to be inserted and fitted at the entrance end of the filter slot C5. The protruding section 67 is connected to the insertion section 103 and protrudes laterally from the insertion section 103, and is used as a protruding part 55 for abutting and triggering the switch 51 (see Figure 8 ).

[0166] In this embodiment, the surface of the insertion section 103 is provided with a clamping protrusion 68, and a clamping fit hole K5 is provided at one end of the main sheet holder 64 close to the holding head 65. When the insertion section 103 is inserted into the main sheet holder 64, the clamping protrusion 68 is clamped in the clamping fit hole K5 to achieve clamping and fixing.

[0167] In this embodiment, optionally, the main sheet holder 64 includes an insertion part 69 and a convex edge 70. The insertion part 69 is used to carry the filter 63 and is inserted and fitted into the slot C2. The convex edge 70 protrudes from one end of the insertion part 69 close to the holding head 65 to the outside of the filter slot C5. When the holding head 65 is inserted into the main sheet holder 64, the protruding section 67 is superposed on the convex edge 70 (see Figure 11 ), and the protruding section 67 abuts against the trigger switch 51 through the convex edge 70. The superposed convex edge 70 and protruding section 67 have a larger thickness, so they have a larger structural stiffness, which is beneficial to reliably pressing against and triggering the trigger switch 51 and maintaining a controllable deformation amount.

[0168] The filter assembly 11 provided in this embodiment, when inserted into the slot C2, can both press against and trigger the switch 51 through the protruding section 67 and the convex edge 70, and at the same time can realize the model identification of the filter assembly 11 by contacting the conductive probe 58 through the conductive part 59, with a reasonable structure and convenient use.

[0169] See Figures 15 - 18 , the skin treatment device 1000 in this embodiment further includes a flexible shielding member 71, which can block at the entrance of the slot C2 when the filter assembly 11 is not inserted, achieving the effects of dust prevention and light leakage prevention; and when the filter assembly 11 is inserted, the flexible shielding member 71 can avoid the filter assembly 11 and will not block the filter assembly 11 from entering the slot C2.

[0170] In this embodiment, the slot C2 is provided with a concave avoidance space Q4 at its entrance. Optionally, the light-transmitting support 15 includes a first clamping wall 76 and a second clamping wall 77 spaced along the thickness direction of the light-filtering component 11 (in this embodiment, the thickness direction of the light-filtering component 11 is parallel to the light-emitting direction X). The slot C2 is located between the first clamping wall 76 and the second clamping wall 77, and the avoidance space Q4 is formed by the inner concave of the surface of the second clamping wall 77 facing the first clamping wall 76. The first clamping wall 76 is vertically connected to the outer periphery of the first peripheral side plate 28, and the second clamping wall 77 is connected to the first clamping wall 76. One ends of the first clamping wall 76 and the second clamping wall 77 close to the fourth peripheral side plate 31 are respectively connected to the fourth peripheral side plate 31. One ends of the first clamping wall 76 and the second clamping wall 77 close to the third peripheral side plate 30 (i.e., the covering plate 33) are connected by a connecting wall, so that the entrance of the slot C2 is defined by a closed ring formed by the head-to-tail connection of the first clamping wall 76, the fourth peripheral side plate 31, the second clamping wall 77 and the connecting arm, improving the structural stability at the entrance of the slot C2 and facilitating the insertion of the light-filtering component 11. Optionally, the light-transmitting support 15 further includes a third clamping wall 78, and the third clamping wall 78 is located on the side of the second clamping wall 77 away from the first clamping wall 76. A clamping groove C6 is defined between the third clamping wall 78 and the second clamping wall 77.

[0171] The flexible shielding member 71 includes a connecting portion 72 and a flexible flap 73. The connecting portion 72 is connected to the device main body 10 on the side of the entrance of the slot C2 close to the avoidance space Q4. One side of the flexible flap 73 is connected to the connecting portion 72, and the other side extends from the connecting portion 72 to shield the entrance of the slot C2 (see Figure 17 ) or is pushed by the light-filtering component 11 to be received in the avoidance space Q4 when the light-filtering component 11 is inserted (see Figure 18 ).

[0172] Among them, the connecting portion 72 can be connected to one side of the second clamping wall 77. For example, the connecting portion 72 is inserted and fitted into the clamping groove C6 between the second clamping wall 77 and the third clamping wall 78.

[0173] The flexible flap 73 extends from one side of the first clamping wall 76 to the other side of the second clamping wall 77 to shield the entrance of the slot C2. Optionally, the flexible flap 73 includes a connected support section 74 and a shielding section 75. The support section 74 is correspondingly supported on the second clamping wall 77 along the insertion direction of the light-filtering component 11, and the shielding section 75 corresponds to the entrance of the slot C2. The shielding section 75 can be bent relative to the support section 74 to be received in the avoidance space Q4. Among them, a crease groove C9 is formed by the inner concave of the surface of the flexible flap 73 facing the slot C2 at the position corresponding to the avoidance space Q4, and the support section 74 and the shielding section 75 are located on both sides of the crease groove C9. By providing the crease groove C9, when the light-filtering component 11 is inserted, the shielding section 75 of the flexible flap 73 can be more easily bent along the crease groove C9 into the avoidance space Q4 to avoid the light-filtering component 11, and the resistance to the insertion of the light-filtering component 11 is smaller, improving the user experience.

[0174] In this embodiment, the flexible shielding member 71 can be integrally formed of a silicone material, and its connecting portion 72 can be installed in the clamping groove C6 by bonding or interference fit.

[0175] See Figure 19 , in another embodiment, there are two avoidance spaces Q4, and the two avoidance spaces Q4 are respectively located on both sides of the entrance of the slot C2. Correspondingly, there are two flexible shielding members 71, and the connecting portions 72 of the two flexible shielding members 71 are respectively connected to both sides of the device main body 10 near the avoidance spaces Q4 at the entrance of the slot C2. The flexible flaps 73 of the two flexible shielding members 71 extend towards each other and jointly shield the entrance of the slot C2 or are pushed by the filter component 11 to be respectively accommodated in the two avoidance spaces Q4 when the filter component 11 is inserted. In this embodiment, the flexible flaps 73 of the two flexible shielding members 71 can be in contact with each other to completely close the entrance of the slot C2; or they can have a certain overlapping portion to improve the dust-proof and light-shielding effects.

[0176] For the skin treatment device 1000 of this embodiment, when the filter component 11 is not inserted, the flexible flap 73 blocks the entrance of the slot C2, which can achieve the effects of dust-proof and light-leakage prevention; when the filter component 11 is inserted, the filter component 11 can push the flexible flap 73 to be accommodated in the avoidance space Q4.

[0177] Therefore, the skin treatment device 1000 of this embodiment is convenient to use and can keep the slot C2 shielded when the filter component 11 is pulled out, having better dust-proof and light-leakage prevention effects.

[0178] For some known skin treatment devices, when the filter component 11 is pulled out, the entrance of the slot C2 cannot be closed, which is easy to let in dust, and the light inside the treatment device may also leak out from the entrance of the slot C2.

[0179] See Figure 5 and Figures 20 - 29 , the skin treatment device 1000 in this embodiment can also be provided with a heat dissipation system 16 as needed. The heat dissipation system 16 can achieve overall heat dissipation or local heat dissipation for the skin treatment device 1000 to reduce the overall temperature or local temperature of the skin treatment device 1000.

[0180] The heat dissipation system 16 can adopt air cooling, liquid cooling or other cooling forms, which are not limited herein.

[0181] For example, the heat dissipation system 16 of this embodiment can be used to cool the light-transmitting member 26. In this way, the light-transmitting member 26 can be kept at a lower temperature to maintain a better ice application effect.

[0182] The heat dissipation system 16 of this embodiment can be used to dissipate heat at the light source 22 (such as the lamp tube 23). During the light-emitting process of the lamp tube 23, a relatively large amount of heat is generated. By dissipating heat at this location, it is possible to prevent the light source 22 and / or components near the light source 22 (such as the light source bracket 14, etc.) from being heated by the light source 22 or irradiated by the light source 22 and then deformed at high temperatures, thereby affecting the structural performance or other physical properties.

[0183] The heat dissipation system 16 of this embodiment can also transfer the heat inside the housing 12 to the outside by increasing the air flow velocity inside and outside the housing 12, so as to achieve overall heat dissipation.

[0184] See Figure 5 , the light-transmitting member 26 itself can be dissipated heat through the refrigeration sheet 95 and the heat sink assembly 92 provided inside the housing 12. That is to say, the refrigeration sheet 95 and the light-transmitting member 26 form a cold compress assembly for cold compressing the skin to achieve the effect of ice point hair removal. Of course, in other embodiments, the cold compress assembly can also be arranged on the periphery or the side of the light-transmitting member 26 and the light outlet K1 to perform cold compressing on the periphery of the light.

[0185] See Figure 20 and Figure 21 , in this embodiment, the light source bracket 14 includes a front frame section 79 and a rear frame section 80, and the rear frame section 80 is connected to the rear of the front frame section 79. In this embodiment, the front of the light-emitting direction X of the skin treatment device 1000 is defined as "front", and the rear of the light-emitting direction X of the skin treatment device 1000 is defined as "rear".

[0186] The rear frame section 80 is connected with a connecting column 84 for supporting and connecting to the housing 12 or other structures. For example, the connecting column 84 abuts against the inner surface of the housing 12, and the relative fixation of the housing 12 and the light source bracket 14 is achieved by threadedly connecting the connecting column 84 with a screw (not shown in the figure) screwed in from the outside of the housing 12.

[0187] The front frame section 79 of the light source bracket 14 includes a bottom wall 81, two side walls 82 and two end walls 83. The two side walls 82 are respectively connected to both sides of the bottom wall 81. The two end walls 83 are respectively connected to the other two sides of the bottom wall 81 and are located at both ends of the lamp tube length direction Y2. Among them, the lamp tube length direction Y2 refers to the extending direction of the axis of the lamp tube 23. In this embodiment, the lamp tube length direction Y2 is parallel to the insertion and extraction direction Y1 of the filter assembly 11. The bottom wall 81, the two side walls 82 and the two end walls 83 together enclose an installation cavity Q2 that opens towards the light-emitting direction X of the skin treatment device 1000.

[0188] In this embodiment, air inlet openings K31 and air outlet openings K32 are respectively formed at two ends of a side wall 82 of the light source bracket 14 along the length direction Y2 of the lamp tube. The air inlet openings K31 and the air outlet openings K32 are respectively communicated with two ends of the installation cavity Q2 along the length direction Y2 of the lamp tube to form an air inlet flow channel T11 and an air outlet flow channel T12, and the air inlet flow channel T11 and the air outlet flow channel T12 are spaced apart along the length direction Y2 of the lamp tube.

[0189] The air inlet openings K31 can be directly or indirectly communicated with the air blowing openings K52 of the fan 91 (as shown in Figure 24 and Figure 25 ), and the air outlet openings K32 can be directly or indirectly communicated with the air outlet openings K22 on the housing 12 (as shown in Figure 24 and Figure 25 ). In this way, when the fan 91 operates, cooling air flow can be blown into the light source bracket 14 from the air inlet openings K31. The cooling air flow flows into the air inlet flow channel T11, and after taking away heat through the first air flow channel T21 and the second air flow channel T22, it flows out of the installation cavity Q2 of the light source bracket 14 from the air outlet openings K32 through the air outlet flow channel T12, and flows out of the housing 12 through the air outlet openings K22 of the housing 12.

[0190] Referring again to Figure 20 and Figure 21 , in this embodiment, the reflector cup 24 includes a main cup body 86 and two fixing feet 87. The main cup body 86 is mainly used to reflect the light emitted by the lamp tube 23 forward along the light emitting direction X, and the fixing feet 87 are used for the installation and fixation of the reflector cup 24.

[0191] In this embodiment, by way of example, the main cup body 86 has an arc-shaped sheet structure extending along the length direction Y2 of the lamp tube, and its cross-section in a plane perpendicular to the length direction Y2 of the lamp tube is substantially C-shaped. The inner side surface of the main cup body 86 (i.e., the surface on the front side close to the light emitting direction X) is a reflecting surface P1. The two fixing feet 87 are respectively connected to two ends of the main cup body 86 along the length direction Y2 of the lamp tube and extend towards the bottom wall 81 of the light source bracket 14.

[0192] Referring to Figure 22 and Figure 23, in this embodiment, the reflector cup 24 is installed on the light source bracket 14. For example, both sides of the opening of the main cup body 86 are respectively abutted against the two side walls 82 of the light source bracket 14. The middle part of the main cup body 86 is concave in a C shape towards the bottom wall 81 side relative to both sides of the reflector cup 24, and there is a gap between the middle part of the reflector cup 24 and the bottom wall 81 without contact, so that a first air flow channel T21 is formed between the reflector cup 24 and the bottom wall 81. The concave shape of the C-shaped main cup body 86 enables the main cup body 86 to have a second air flow channel T22 on the side away from the first air flow channel T21. In this embodiment, the first air flow channel T21 and the second air flow channel T22 respectively extend along the length direction Y2 of the lamp tube. The first air flow channel T21 is communicated between the air inlet flow channel T11 and the air outlet flow channel T12, and the second air flow channel T22 is communicated between the air inlet flow channel T11 and the air outlet flow channel T12. Combining Figure 5 As shown, for the embodiment with the filter 63 provided, the second air flow channel T22 is located between the reflector cup 24 and the filter 63. In this embodiment, one end of the light-transmitting bracket 15 is connected to the light source bracket 14, and the other end is connected to a position of the housing 12 close to the light outlet K1. The light-transmitting member 26 and the filter 63 are respectively installed on the light-transmitting bracket 15, and the second air flow channel T22 is surrounded by the light-transmitting bracket 15, the reflector cup 24 and the filter 63. In some embodiments, if there are other optical elements (such as the pluggable filter assembly 11) inserted between the filter 63 and the light source bracket 14, the second air flow channel T22 can also be located between the optical element and the reflector cup 24.

[0193] In this embodiment, the abutment between the two side edges of the opening of the main cup body 86 (that is, Figure 20 the upper and lower parts at the opening of the main cup body 86 in

[0194] and the two side walls 82 of the light source bracket 14) can be a completely fitting and sealed abutment, or can have a small gap, which is not limited here.

[0195] In this embodiment, the reflector cup 24 is provided with an air passing hole K8, and the air passing hole K8 communicates the first air flow channel T21 and the second air flow channel T22.

[0196] For the skin treatment device 1000 of this embodiment, by providing the air passing hole K8 on the reflector cup 24, the air flows in the first air flow channel T21 and the second air flow channel T22 on both sides of the reflector cup 24 can be exchanged with each other, so that part of the heat flow in the second air flow channel T22 can enter the first air flow channel T21 and be taken away by the air flow in the first air flow channel T21, improving the heat dissipation efficiency.

[0197] In contrast, in some related technologies, the reflector cup 24 is arranged in contact with the bottom wall 81, and the aforementioned first air flow channel T21 cannot be formed. The air flow entering the reflector cup 24 mainly flows inside the reflector cup 24 (the side away from the bottom wall 81). With this arrangement of the reflector cup 24, the heat dissipation effect of the reflector cup 24 and the surrounding area by the air flow is poor.

[0198] Continue to refer to Figure 22 and Figure 23 In this embodiment, the connection between the side wall 82 and the bottom wall 81 is in a corner transition. The side wall 82 and the bottom wall 81 are in a corner transition, and a relatively large space is dug out at the corner, which is beneficial to increasing the cross-sectional area of the first air flow channel T21 and improving the air flow heat dissipation efficiency.

[0199] Optionally, at least one side wall 82 is provided with an inwardly concave notch C1, and the notch bottom surface of the notch C1 is spaced apart from the reflector cup 24. For example Figure 23 a notch C1 formed by inward concavity is provided at the lower side wall 82 in. The inward concavity of the notch C1 increases the cross-sectional area of the first air flow channel T21 and reduces the contact area between the side wall 82 and the reflector cup 24, which is beneficial to improving the heat dissipation efficiency.

[0200] Refer to again Figure 20 and Figure 21 The lamp tube 23 is generally in a long strip tubular structure. It can be a lamp tube 23 based on various light emitting principles, such as an LED lamp tube 23, an IPL lamp tube 23, a laser lamp tube 23, etc., which are not limited here. The lamp tube 23 is located on the side of the reflector cup 24 away from the light source bracket 14, and the middle part of the lamp tube 23 in the longitudinal direction is located in the second air flow channel T22. The two ends of the lamp tube 23 in the longitudinal direction are electrodes 89 for realizing the electrical connection of the lamp tube 23.

[0201] Refer to again Figure 20 and Figure 21, in this embodiment, the skin treatment device 1000 further includes two light-shielding portions 90, and the two light-shielding portions 90 are respectively located at both ends of the reflector cup 24 along the length direction Y2 of the lamp tube. One of the two light-shielding portions 90 is located between the second air flow channel T22 and the air inlet flow channel T11, and communicates the second air flow channel T22 and the air inlet flow channel T11 through the corresponding gap f1 of this light-shielding portion 90; the other of the two light-shielding portions 90 is located between the second air flow channel T22 and the air outlet flow channel T12, and communicates the second air flow channel T22 and the air outlet flow channel T12 through the corresponding gap f1 of this light-shielding portion 90. The setting of the light-shielding portion 90 can shield the lamp tube 23 and reduce the leakage amount of the light emitted by the lamp tube 23. The light-shielding portion 90 is provided with a through hole K4, and the two long ends of the lamp tube 23 respectively pass through the through holes K4 of the two light-shielding portions 90, and a gap f1 as described above is formed between the lamp tube 23 and the through hole K4. Through this gap f1, the air flow entering from the air inlet flow channel T11 can enter the second air flow channel T22 through the gap f1 on this side, and then flow out to the air outlet flow channel T12 through the gap f1 on the other side. That is, the setting of this light-shielding portion 90 has both the effects of light shielding and air flow passing.

[0202] Due to this light-shielding portion 90, it has a certain obstructive effect on the air flow flowing into and out of the second air flow channel T22. By providing an air passing hole K8 to communicate the first air flow channel T21 and the second air flow channel T22, the air flow between the first air flow channel T21 and the second air flow channel T22 can be exchanged, thereby reducing the adverse effects generated by the light-shielding portion 90 and ensuring the heat dissipation efficiency.

[0203] It should be noted that the light-shielding portion 90 is mainly provided on the side of the reflector cup 24 away from the light source bracket 14, and does not block the communication between the first air flow channel T21 and the air inlet flow channel T11 or the air outlet flow channel T12, that is, the light-shielding portion 90 does not prevent the air flow from entering the first air flow channel T21 from the air inlet flow channel T11, nor does it prevent the air flow from flowing out of the first air flow channel T21 to the air outlet flow channel T12.

[0204] It should be noted that compared with the solution without the light-shielding portion 90, adding light-shielding portions 90 at the left and right ends of the reflector cup 24 can effectively reduce the light leakage amount of the lamp tube 23 from both ends of the reflector cup 24, thereby effectively reducing the light leakage from the plug-in port K2 on the housing 12 (see Figure 2 ) to avoid discomfort to the user.

[0205] However, by adding light-shielding portions 90 to the left and right ends of the reflector cup 24 to reduce the light leakage amount, it will cause a certain blockage to both ends of the first air flow channel T21 defined by the reflector cup 24, so that the air flow can only flow into or out of the first air flow channel T21 of the reflector cup 24 through the gap f1, thereby reducing the air volume flowing in the reflector cup 24 and decreasing the heat dissipation efficiency. For this reason, air passing holes K8 are added to the bottom of the reflector cup 24, so that the air flow inside and outside the reflector cup 24 (i.e., the air flow in the first air flow channel T21 and the second air flow channel T22) can be exchanged, so that the high temperature in the first air flow channel T21 can be transferred to the low-temperature gas in the second air flow channel T22, and then be carried out by the air flow in the second air flow channel T22, thereby improving the heat dissipation efficiency and effectively ensuring or improving the heat dissipation efficiency of the reflector cup 24 with the light-shielding portion 90.

[0206] See Figure 24 or Figure 25 , in this embodiment, the housing 12 is further provided with an air inlet K21 and an air outlet K22, and the air inlet K21 and the air outlet K22 are respectively communicated with the internal space Q1. The air inlet K21 and the air outlet K22 can be arranged at different positions of the housing 12 to reduce the mutual influence between the incoming air and the outgoing air. The air inlet K21 and the air outlet K22 are respectively used for gas to flow into and out of the internal space Q1 to achieve the heat dissipation of the skin treatment device 1000. The heat dissipation system 16 can realize or accelerate the above-mentioned air flow exchange to achieve the required heat dissipation effect. The air inlet K21 and the air outlet K22 can be arranged at different positions of the lower housing 20.

[0207] Continue to refer to Figure 24 or Figure 25 , in this embodiment, the heat dissipation system 16 of the skin treatment device 1000 further includes a fan 91, and the fan 91 is installed in the internal space Q1 of the housing 12 (cooperate to refer to Figure 5 ). The fan 91 has an air suction port K51 and an air blowing port K52. When the fan 91 works, the air with a relatively low temperature in the environment enters the internal space Q1 of the housing 12 from the air inlet K21, is inhaled into the fan 91 through the air suction port K51, then is blown out from the air blowing port K52, and after taking away the heat through the heat dissipation flow channels (such as the first air flow channel T21 and the second air flow channel T22) inside the skin treatment device 1000, it is discharged to the external environment from the air outlet K22 of the housing 12, thereby dissipating heat and cooling the skin treatment device 1000.

[0208] Continue to refer to Figure 24 or Figure 25 , in this embodiment, the skin treatment device 1000 further includes a heat sink assembly 92. The heat sink assembly 92 includes a heat sink frame 93 and a plurality of heat sinks 94 installed on the heat sink frame 93, and the adjacent heat sinks 94 are spaced from each other.

[0209] Optionally, the heat sink holder 93 is connected to the side wall 82 of the light source holder 14 on the side where the air inlet opening K31 and the air outlet opening K32 are formed, and together with the air inlet opening K31 of the light source holder 14, it forms a channel corresponding to the blowing opening K52 of the fan 91. The heat sink holder 93 is also provided with an air flow outlet K7 communicating with the air outlet opening K32.

[0210] The fan 91 is connected to the light source holder 14, and a part of the air blown out from the blowing opening K52 of the fan 91 is directed towards the heat sink 94 to dissipate heat from the heat sink 94; another part of the air blown out from the blowing opening K52 is directed towards the air inlet opening K31 of the light source holder 14 to provide the air flow passing through the first air flow channel T21 and the second air flow channel T22. This air flow will pass through the air inlet flow channel T11, the first air flow channel T21, the second air flow channel T22, and the air outlet flow channel T12, and then flow out from the air flow outlet K7, and finally be discharged from the air outlet K22 of the housing 12 to the environment. During this process, a part of the air flow in the second air flow channel T22 can also enter the first air flow channel T21 through the air passing hole K8 and flow downstream from the first air flow channel T21.

[0211] In this embodiment, the air passing hole K8 on the reflecting cup 24 is used for communicating the first air flow channel T21 and the second air flow channel T22. The specific shape of the air passing hole K8 can be set as required.

[0212] For example Figure 22 As shown in, the air passing hole K8 extends along the length direction Y2 of the lamp tube and is a continuous long strip-shaped hole along the length direction Y2 of the lamp tube. Optionally, the length of the distribution area of the air passing hole K8 (i.e., the dimension of the long strip-shaped hole along the length direction Y2 of the lamp tube) is 10 to 50 millimeters, optionally 15 to 36 millimeters, such as 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 32.5, 33, 34, or 35 millimeters, etc. Optionally, the width of the distribution area of the air passing hole K8 (i.e., the length of the air passing hole K8 in the circumferential direction of the reflecting cup 24) is 0.5 to 5.0 millimeters, optionally 1.0 to 4 millimeters, such as 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, or 3.9 millimeters, etc. Through this dimension design, it can ensure good ventilation effect and the light generated by the lamp tube 23 will not leak too much from the air passing hole K8.

[0213] See in conjunction with Figure 22 and Figure 23, in this embodiment, the air passing hole K8 is located on the side of the lamp tube 23 opposite to the light emitting direction X of the skin treatment device 1000, that is to say, the air passing hole K8 is located at the rear side of the lamp tube 23. In this way, it is possible to avoid large light loss caused by opening the air passing hole K8 in front of the light emitting direction X of the lamp tube 23.

[0214] In this embodiment, optionally, the air passing hole K8 is located on the side of the lamp tube 23 facing away from the light emitting port K1 (see Figure 5 ), and is arranged corresponding to the lamp tube 23. Tests show that the area of the reflector cup 24 corresponding to the lamp tube 23 on the side of the lamp tube 23 facing away from the light emitting port K1 belongs to the blind area of the lamp tube 23. It is difficult for the light irradiated by the lamp tube 23 in these areas to be emitted from the light emitting port K1 through the reflection of the reflector cup 24, but at least part of it will be reflected back to the lamp tube 23 and absorbed by the lamp tube 23. Therefore, the air passing hole K8 opened at this position can, on the one hand, achieve the function of air flow passing through, and on the other hand, has less impact on the reflection efficiency of the reflector cup 24.

[0215] Of course, in other embodiments, the air passing hole K8 can also be arranged at other positions of the reflector cup 24, as long as the first air flow channel T21 and the second air flow channel T22 are connected to achieve the air passing effect.

[0216] In this embodiment, optionally, the projection of the air passing hole K8 in the plane perpendicular to the light emitting direction X is located within the projection range of the lamp tube 23 in the plane perpendicular to the light emitting direction X. In this way, it is possible to limit the loss of the reflection ability of the reflector cup 24 caused by cutting off a part of the reflector cup 24 outside the shielding range of the lamp tube 23 as the air passing hole K8.

[0217] In other embodiments, the air passing hole K8 can also be set larger than the projection range of the lamp tube 23 according to the air passing and heat dissipation requirements, which is not limited here.

[0218] In this embodiment, optionally, see Figure 23 , the edge of the air passing hole K8 is folded towards the side away from the lamp tube 23 to form a folded edge 88. By providing the folded edge 88, the structural stiffness of the reflector cup 24 can be increased to make up for the loss of the structural stiffness of the reflector cup 24 caused by opening the air passing hole K8.

[0219] Figure 26In another embodiment, the reflector cup 24 in this embodiment has an air passage hole K8 including a plurality of through holes K6 sequentially arranged at intervals along the length direction Y2 of the lamp tube. These through holes K6 can be small holes in the shape of circles, squares or other shapes, and these through holes K6 are arranged in a row at intervals along the length direction Y2 of the lamp tube. The length of the distribution area of the air passage hole K8 (that is, the length of the ventilation area formed by all the plurality of through holes K6 in the circumferential direction of the reflector cup 24) is 10 to 50 millimeters, optionally 15 to 36 millimeters, such as 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 32.5, 33, 34 or 35 millimeters, etc. Optionally, the width of the distribution area of the air passage hole K8 (that is, the length of the ventilation area formed by all the plurality of through holes K6 in the length direction of the lamp tube 23) is 0.5 to 5.0 millimeters, optionally 1.0 to 4 millimeters, such as 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, or 3.9 millimeters, etc.

[0220] And the area of a single through hole K6 is greater than or equal to 2 square millimeters. Of course, in other embodiments, the air passage hole K8 can also be arranged in other forms, such as arranged in two rows or even more rows. Through this size design, it can ensure good air passage effect, and the light generated by the lamp tube 23 will not leak too much from the air passage hole K8.

[0221] See Figure 27 and Figure 28 , in still another embodiment of this embodiment, compared with the embodiment shown in Figure 23 , the skin treatment device 1000 further includes a reflector 96. The reflector 96 is located in the first air flow channel T21, and the reflector 96 has a reflecting surface P2 corresponding to the air passage hole K8, and the reflecting surface P2 faces the air passage hole K8. By providing the reflector 96, part or all of the light emitted by the lamp tube 23 passing through the air passage hole K8 can be reflected back through the air passage hole K8, and at least part of these reflected lights can be emitted from the light outlet K1 for skin treatment. In this way, the amount of the useful part of the light emitted by the lamp tube 23 can be increased, and the luminous efficiency of the lamp tube 23 can be improved.

[0222] Optionally, the reflector 96 is attached to the inner wall of the first air flow channel T21 (that is, the surface of the bottom wall 81 of the light source bracket 14). The reflector 96 with this structure is convenient to set, and it is easy to keep its reflecting surface P2 flat by using the bottom wall 81 of the light source bracket 14. In addition, the reflector 96 with this structure has little influence on the air flow in the first air flow channel T21.

[0223] Optionally, the projection of the air passing hole K8 in a plane perpendicular to the light emitting direction X of the skin treatment device 1000 is within the projection range of the light reflecting member 96 in a plane perpendicular to the light emitting direction X. In this way, the light of the lamp tube 23 passing through the air passing hole K8 can be irradiated on the light reflecting member 96 to a greater extent, which is beneficial for the light reflecting member 96 to reflect more light back through the air passing hole K8, improving the light emitting efficiency of the lamp tube 23.

[0224] Figure 29 In the illustrated embodiment, the light reflecting member 96 is spaced apart from the inner wall of the first air flow channel T21 (i.e., the surface of the bottom wall 81 of the light source bracket 14), and it can be fixed to the bottom wall 81 of the light source bracket 14 or other positions through a connection structure (not shown in the figure). By arranging the light reflecting member 96 at an interval, the position of the light reflecting member 96 can be closer to the air passing hole K8, which is beneficial for reflecting back more light and improving the light emitting efficiency of the lamp tube 23.

[0225] In this embodiment, the light reflecting surface P2 of the light reflecting member 96 can be a flat surface or a curved surface.

[0226] For example Figure 27 and Figure 28 in, the light reflecting surface P2 of the light reflecting member 96 is a flat surface. Figure 29 in, the light reflecting surface P2 of the light reflecting member 96 is a curved surface convex in the direction towards the air passing hole K8. The convex light reflecting surface P2 can prevent part of the reflected light from being reflected onto the lamp tube 23, so as to be emitted towards the light outlet K1.

[0227] The light reflecting member 96 can be an additionally provided sheet-like structure, which is fixed to the light source bracket 14 by means of a connecting member or bonding; the light reflecting member 96 can also be a reflective film layer formed on the surface of the bottom wall 81 in advance by means of metal deposition, spraying or other methods, as long as it has a light reflecting surface P2 capable of reflecting light.

[0228] In the foregoing embodiment (see Figures 8 - 10 ), the first sensing circuit board 53 carrying the trigger switch 51 and the skin color recognition circuit board 35 are integrated into an L-shaped circuit board 54, while the second sensing circuit board 57 carrying the conductive probe 58 is separately arranged from the skin color recognition circuit board 35.

[0229] The present disclosure also provides some different embodiments.

[0230] Figures 30 - 33A different embodiment is shown. Based on the foregoing embodiment, the second sensing circuit board 57 carrying the conductive probe 58 is integrated at the other end of the skin color recognition circuit board 35, so that the first sensing circuit board 53, the skin color recognition circuit board 35, and the second sensing circuit board 57 are integrated into a U-shaped circuit board 98, and the U-shaped circuit board 98 is fixed on the light-transmitting bracket 15. In this way, the total number of circuit boards is further reduced, and the complexity of the circuit board installation or the electrical connection structure between the circuit boards is reduced.

[0231] For this embodiment, the second sensing circuit board 57 faces the filter assembly 11a. Therefore, the conductive probe 58 (such as the conductive probe 61) can be set to extend in a direction perpendicular to the filter assembly 11a, that is, the conductive probe 58 extends toward the filter assembly 11a along the light-emitting direction X.

[0232] The filter assembly 11a provided by this embodiment and Figure 14 the filter assembly 11 shown in have different structures to facilitate lateral contact and electrical conduction with the conductive probe 58 extending in a direction perpendicular to the filter assembly 11a there.

[0233] See Figure 33 , the filter assembly 11a includes a filter mounting frame 62 and a filter 63, and the filter 63 is mounted on the filter mounting frame 62; an installation groove C4 formed by concave inward is provided at one end of the filter mounting frame 62 away from the insertion and extraction port K2 along the insertion and extraction direction Y1, and the conductive part 59a is a conductive block mounted in the installation groove C4; the conductive part 59a has an avoidance space W1, and the avoidance space W1 is an avoidance notch groove C8 formed by concave inward from the surface of the conductive part 59a facing the conductive probe 58. The avoidance notch groove C8 can be concave inward by a certain thickness or can be concave inward through both sides of the thickness direction of the conductive part 59a. The filter mounting frame 62 includes two end walls 83 spaced along the thickness direction of the filter assembly 11a (parallel to the light-emitting direction X in this embodiment), and the installation groove C4 is located between the two end walls 83. The conductive probe 58 is a conductive probe 61, and a plurality of channel grooves C7 formed by concave inward along the insertion and extraction direction Y1 are provided on the end wall 83 of the two end walls 83 close to the conductive probe 61, and the plurality of conductive probes 61 respectively correspond to the channel grooves C7 along the thickness direction of the filter assembly 11a and can extend into the installation groove C4 through the channel grooves C7 to abut against the conductive part 59a.

[0234] Thus, when the filter component 11a is inserted into the slot C2 along the insertion and extraction direction Y1, due to the provision of the channel slot C7, the end wall 83 will not block the insertion and contact of the conductive probe 61 with the conductive part 59a. And when the filter component 11a is inserted in place, the conductive probe 61 can pass through the channel slot C7 and abut against the conductive part 59a. Of course, to prevent the conductive probe 61 from obstructing the conductive part 59a when the filter component 11a is inserted, the conductive probe 61 can be set as a retractable spring pin, and the end of the conductive probe 61 can be set as hemispherical. In this way, the conductive probe 61 can retract with the guidance of the hemispherical surface to allow the conductive part 59a to move to the position corresponding to the conductive probe 61, ensuring electrical contact.

[0235] In this embodiment, the conductive parts 59a of the filter components 11a of different models (such as different filter bands) have different avoidance spaces W1. For example Figure 33 The conductive part 59a-1 of another model of the filter component 11a is additionally shown by a dotted line in the figure. The conductive part 59a-1 has two avoidance spaces W1, which is different from the conductive part 59a that only has one avoidance space W1. In this way, the filter component 11a equipped with the conductive part 59a-1 and the filter component 11a equipped with the conductive part 59a can be identified as filter components 11a of different models.

[0236] Continue to refer to Figures 30 - 33 , in this embodiment, the trigger switch 51 can be set to face the filter component 11a, and the trigger part 52 can be a rotating member 99 rotatably mounted near the entrance of the slot C2 of the light-transmitting bracket 15. When the filter component 11a is inserted, the filter component 11a can push the rotating member 99 to rotate in the direction close to the trigger switch 51, and when the filter component 11a is inserted in place, the filter component 11a presses the rotating member 99 against the trigger switch 51 to trigger the trigger switch 51. In this scheme, the filter component 11a does not need to be provided with the aforementioned protruding part 55 (see Figure 14 ), and the maximum dimension of the filter component 11a in the thickness direction is smaller, which is beneficial to reducing the space occupied by the filter component 11a.

[0237] Of course, the triggering form of the trigger switch 51 in this embodiment can also adopt the form of triggering by the aforementioned protruding part 55 along the insertion and extraction direction Y1 (see Figure 8 ), which is not limited here.

[0238] Figures 34 - 35Another different embodiment is shown. In this embodiment, the trigger switch 51 and multiple conductive probes 58 (such as conductive probes 61) are integrated on the same sensing circuit board 49. The multiple conductive probes 61 and the trigger switch 51 are arranged at intervals on the surface of the sensing circuit board 49. The sensing circuit board 49 is mounted on the outer surface of the first circumferential side plate 28 of the light-transmitting bracket 15, and both the trigger switch 51 and the conductive probes 58 face the insertion direction of the filter assembly 11b, that is, the same as the entrance direction of the slot C2.

[0239] In this embodiment, a protruding plate 100 protruding along the insertion and extraction direction Y1 protrudes from the outer surface of the first circumferential side plate 28 (i.e., the first circumferential side surface P31), and a clamping structure 101 is connected to the surface of the protruding plate 100.

[0240] A clamping gap f3 is defined between the clamping structure 101 and the first circumferential side surface P31, and the sensing circuit board 49 is fitted in the clamping gap f3. The clamping structure 101 includes two spaced clamping plates 102, and the trigger switch 51 is clamped between the two clamping plates 102.

[0241] Optionally, the multiple conductive probes 61 are arranged on both sides of the trigger switch 51. For example Figure 35 as shown, four rectangularly distributed conductive probes 61 are provided on one side of the trigger switch 51, and two conductive probes 61 are provided on the other side. The conductive probes 61 and the trigger switch 51 are arranged in sequence along the width direction of the filter assembly 11b.

[0242] Continue to refer to Figure 34 and Figure 35 , this embodiment also provides a filter assembly 11b with a structure different from that of the filter assembly 11. The filter assembly 11b includes a filter mounting frame 62 and a filter 63, and the filter 63 is mounted on the filter mounting frame 62. The filter mounting frame 62 includes a main frame 64 and a holding head 65. The main frame 64 is used to mount the filter 63 and is inserted and fitted into the slot C2 as the insertion part of the filter mounting frame 62. The holding head 65 is inserted and fitted to one end of the main frame 64 and abuts against the filter 63. The holding head 65 includes an insertion section 103 and a protruding section 67. The insertion section 103 is inserted and fitted into the main frame 64. The protruding section 67 is connected to the insertion section 103 and extends laterally from the insertion section 103 as a protruding part 55 for acting on the trigger switch 51 and the conductive probes 58.

[0243] The surface of the protruding section 67 facing the sensing circuit board 49 includes a trigger surface P41 and a conductive surface P42. The trigger surface P41 corresponds to the trigger switch 51, and the conductive surfaces P42 are located on both sides of the trigger surface P41 and respectively correspond to the conductive probes 58 on both sides. In this way, when the filter component 11b is inserted into the slot C2, the trigger surface P41 of the protruding section 67 presses against the trigger switch 51, so that the trigger switch 51 is triggered to obtain a signal indicating that the filter component 11b is inserted in place. At the same time, the conductive surface P42 serves as the conductive part for the conductive probe 59b to conduct contact with the conductive probe 58.

[0244] In this embodiment, the filter films 63 of different models of the filter components 11b have different filter bands. Correspondingly, the conductive surfaces P42 of different models of the filter components 11b have different avoidance spaces, so that different models of the filter components 11b can conduct different conductive probes 58. Thus, the model of the filter component 11b can be identified by setting different avoidance spaces on the conductive surface P42. The avoidance space can be embodied as a concave or insulating treatment at a selected position of the conductive surface P42.

[0245] In this embodiment, the conductive probe 58 and the trigger switch 51 are integrated on the same side of a circuit board and both face the insertion and extraction direction Y1 of the filter component 11b. The protruding section 67 on the inserted filter component 11b can simultaneously trigger the trigger switch 51 and make electrical contact with the conductive probe 58 along the insertion and extraction direction Y1, realizing the recognition of the insertion in place and the model recognition of the filter component 11b, with a compact and reasonable structure and convenient use.

[0246] In this embodiment, optionally, the trigger surface P41 is concave relative to the conductive surface P42, so as to adapt to the situation where the trigger switch 51 and the conductive probe 61 have different protruding heights.

[0247] Figures 36 - 39 Another different embodiment is shown.

[0248] In this embodiment, the sensing component 48 includes a sensing circuit board 49 and a filter film model recognition circuit 60 provided on the sensing circuit board 49. The filter film model recognition circuit 60 includes a plurality of spaced-apart conductive probes 58, and the conductive probes 58 are fixed to the sensing circuit board 49. Among them, the sensing circuit board 49 is fixed to the second peripheral side plate 29. The sensing circuit board 49 is provided separately and is not integrated with other circuit boards (such as the skin color recognition circuit board 35). The board surface of the sensing circuit board 49 faces the filter component 11c, and a plurality of conductive probes 58 respectively protrude from the board surface of the sensing circuit board 49 facing the filter component 11c. As shown in the figure, the sensing circuit board 49 is located in front of the slot C2 along the light output direction X.

[0249] The filter component 11c includes a conductive part 59c, and the conductive part 59c has an avoidance space W1, and the avoidance space W1 corresponds to a part of the plurality of conductive probes 58.

[0250] When the filter component 11c is fitted into the slot C2, the conductive part 59c is electrically connected to other conductive probes 58 except the conductive probe 58 corresponding to the avoidance space W1.

[0251] Optionally, the sensing component 48 further includes a shrapnel holder 105, and the shrapnel holder 105 is fixed to the board surface of the sensing circuit board 49 facing the filter component 11c. The conductive probe 58 is a conductive shrapnel 104, and the conductive shrapnel 104 is supported by the shrapnel holder 105. The conductive shrapnel 104 includes a welding piece 106 and a conductive contact part 107; the welding piece 106 is located on the side of the shrapnel holder 105 close to the sensing circuit board 49, and the welding piece 106 is fixedly welded to the sensing circuit board 49 and is electrically connected to the filter type identification circuit 60; the conductive contact part 107 is located on the side of the shrapnel holder 105 close to the filter component 11c and is used for elastically pressing against and contacting the conductive part 59c.

[0252] Optionally, the sensing component 48 further includes a terminal block 108, and the terminal block 108 is electrically connected to the sensing circuit board 49 and is used for electrically connecting the sensing circuit board 49 to the main control board 17 of the skin treatment device 1000.

[0253] Refer again to Figures 36 - 39 , this embodiment provides a filter component 11c with a different structure. The filter component 11c includes a filter mounting frame 62 and a filter 63, and the filter 63 is mounted on the filter mounting frame 62; the filter mounting frame 62 includes a metal frame member 109, a tail end member 116, and a holding head 65. The metal frame member 109 has a light-transmitting area S1 and a filter slot C5, and the filter slot C5 extends along the insertion and extraction direction Y1 of the filter component 11c, and the light-transmitting area S1 is connected to the filter slot C5; the filter 63 is fitted into the filter slot C5 and covers the light-transmitting area S1; the tail end member 116 and the holding head 65 are respectively connected to both ends of the metal frame member 109 along the insertion and extraction direction Y1, and the filter 63 is clamped between the tail end member 116 and the holding head 65. The conductive part 59c is a part of the tail of the metal frame member 109 of the filter component 11c close to the sensing circuit board 49, and the avoidance space W1 is an avoidance notch C8 opened in the metal frame member 109.

[0254] In this way, when the filter component 11c is inserted, the tail end of the metal frame member 109 of the filter component 11c serves as a part of the conductive part 59c and corresponds to the conductive shrapnel 104. Among the multiple conductive shrapnels 104, those corresponding to the avoidance notch C8 are not electrically connected by the conductive part 59c. And among the multiple conductive shrapnels 104, those not corresponding to the avoidance notch C8 elastically abut against and contact the metal frame member 109, and thus are electrically connected by the conductive part 59c of the metal frame member 109.

[0255] In this embodiment, there are six conductive elastic sheets 104 of the filter component 11c, and the six conductive elastic sheets 104 are arranged in a row. The number or position of the avoidance slots C8 provided in the filter components 11c of different models is different. For example Figure 38 shows four different models of filter components 11c. The arrangement positions and numbers of the avoidance spaces W1 of the four are different, so that the four different models of filter components 11c can achieve the conduction of different conductive elastic sheets 104, and further enable the models of the inserted filter components 11c to be recognized.

[0256] Continuing to refer to Figure 39 , in this embodiment, the metal frame member 109 includes a first metal plate 110, a second metal plate 111 and two side metal plates 112; the first metal plate 110 and the second metal plate 111 are spaced apart in the thickness direction of the filter component 11c, and the two side metal plates 112 are respectively connected to the first metal plate 110 and the second metal plate 111 to enclose a filter sheet slot C5 for installing the filter sheet 63. The holding head 65 and the tail end member 116 are respectively inserted and fitted at both ends of the filter sheet slot C5 and clamped at both ends of the filter sheet 63. The first metal plate 110 faces the sensing circuit board 49, and a part of the first metal plate 110 near the tail end member 116 is used as the conductive portion 59c and is provided with an avoidance slot C8. The first metal plate 110 and the second metal plate 111 are provided with opposite light-transmitting holes, and a light-transmitting area S1 is formed at the light-transmitting holes.

[0257] Figure 40 and Figure 41 show another structure of the filter component 11d. The similarities between it and the filter component 11c of Figure 39 are that the filter component 11d includes a filter sheet mounting frame 62 and a filter sheet 63, and the filter sheet 63 is mounted on the filter sheet mounting frame 62. The filter sheet mounting frame 62 includes a metal frame member 109, a tail end member 116 and a holding head 65.

[0258] The differences between this filter component 11d and the filter component 11c of Figure 39 mainly lie in the different structures of the metal frame member 109.

[0259] Referring to Figure 40 and Figure 41 , the metal frame member 109 of the filter component 11d includes a third metal plate 113 and two L-shaped flanges 114; the two flanges 114 are respectively connected to both sides in the width direction of the third metal plate 113, and a filter sheet slot C5 for installing the filter sheet 63 is defined between the two flanges 114 and the third metal plate 113. The holding head 65 and the tail end member 116 are respectively connected to both ends of the third metal plate 113 and clamped at both ends of the filter sheet 63. The third metal plate 113 is provided with opposite light-transmitting holes, and a light-transmitting area S1 is formed at the light-transmitting holes.

[0260] When the filter component 11d is inserted into the slot C2, refer to Figure 38 , the third metal plate 113 faces the sensing circuit board 49, and a part of the third metal plate 113 near one end of the tail end member 116 serves as a conductive portion 59d and is provided with an avoidance notch C8. The avoidance notch C8 is recessed from the end face of the third metal plate 113 near one end of the tail end member 116 by a certain length. Optionally, the tail end member 116 has an insulating protrusion 115, and when the tail end member 116 is inserted into the third metal plate 113, the insulating protrusion 115 cooperates with the avoidance notch C8.

[0261] In this way, when the filter component 11d is inserted into the slot C2, the conductive elastic sheet 104 abutted against the third metal plate 113 is conducted, while the conductive elastic sheet 104 abutted against the insulating protrusion 115 at the avoidance notch C8 is not conducted.

[0262] Filter components 11d of different models have different avoidance notches C8 and insulating protrusions 115. For example, as Figure 40 shown by the dotted line additionally in, another model of the filter component 11d has two avoidance notches C8 serving as avoidance spaces W1, which is different from the filter component 11d with only one avoidance space W1 shown on the left. In this way, after being inserted into the slot C2, the models of filter components 11d of different models can be identified.

[0263] Please refer to Figure 42 , which shows a schematic diagram of a skin treatment device provided by an embodiment of the present application. In some embodiments, the skin treatment device 1000 may include a device main body 10 and a plurality of filter components 11. The number of the plurality of filter components can be set according to actual functional requirements, and the embodiments of the present application do not limit this.

[0264] The device main body 10 may include a light source 22 and an identification circuit 1001. A plurality of filter components 11 are selectively and detachably installed on the light-emitting path of the light source 22, so that the light emitted by the light source 22 is filtered by the filter component 11 and then emitted to obtain treatment light, and the treatment light can act on the skin to achieve effects such as hair removal, skin rejuvenation, hair growth, whitening, freckle removal, and wrinkle removal. For example, as Figure 7 shown in Figure 8 , a slot C2 located on the light-emitting path of the light source 22 and a plug socket K2 communicated with the slot C2 may be provided on the device main body 10, and a plurality of filter components 11 are used to be selectively and detachably installed in the slot C2 through the plug socket K2.

[0265] The identification circuit 1001 is used to identify the model of the filter component 11 installed on the light-emitting path of the light source 22. For example, different models of the filter component 11 correspond to different light source driving modes. The light source 22 can emit light with different energy intensities under different light source driving modes, such as light of different wavelength bands or different types. After the identification circuit 1001 identifies the model of the filter component 11 installed on the light-emitting path of the light source 22, the light source 22 can be driven to emit light using a light source driving mode that matches the model of the filter component 11. For another example, different models of the filter component 11 correspond to different skin treatment functions. The device main body 10 may further include a display screen. After the identification circuit 1001 identifies the model of the filter component 11 installed on the light-emitting path of the light source 22, the display screen can display the skin treatment function that matches the model of the filter component 11, facilitating the user to use the skin treatment device 1000.

[0266] Please refer to Figure 43 , the identification circuit 1001 may include a detection circuit 1002 and a control circuit 1003. The detection circuit 1002 is used to be electrically connected to the filter component 11 installed on the light-emitting path of the light source 22, and output a detection signal corresponding to the filter component 11. The control circuit 1003 is used to be electrically connected to the detection circuit 1002, and the control circuit 1003 is used to determine the model of the filter component according to the detection signal output by the detection circuit 1002.

[0267] In some embodiments, the detection circuit 1002 may be configured to form a detection loop when electrically connected to the filter component 11, and the detection circuit may also be configured to form different detection loops when electrically connected to different models of the filter component 11. Different detection loops can generate different detection signals, so that the control circuit 1003 can determine the model of the filter component 11 installed on the light-emitting path of the light source 22.

[0268] For example, the detection circuit 1002 may include multiple detection terminals. When the detection circuit is configured to be electrically connected to the installed filter component 11, at least two of the multiple detection terminals are used to be electrically connected to the installed filter component 11 to form a detection loop. When the detection circuit 1002 is configured to be electrically connected to different models of the filter component 11, different combinations of detection terminals are respectively electrically connected to different models of the filter component 11 to form different detection loops. Different combinations of detection terminals may refer to combinations formed by at least two of the multiple detection terminals.

[0269] As Figure 44 shown, as an optional solution, the detection circuit 1002 may include multiple detection terminals and multiple voltage dividing circuits. The multiple voltage dividing circuits are connected in series, and the multiple detection terminals are correspondingly connected to both ends of the multiple voltage dividing circuits. Figure 44Taking the series connection of four voltage dividing circuits 1004a, 1004b, 1004c, and 1004d as an example, the number of corresponding detection terminals is five, namely detection terminal TP1, detection terminal TP2, detection terminal TP3, detection terminal TP4, and detection terminal TP5. The number of detection terminals and voltage dividing circuits can be set according to the actual detection requirements of the filter component, and the embodiments of the present application do not limit this.

[0270] In some embodiments, multiple detection terminals can be Figure 32 electrically connected to the corresponding multiple conductive probes as shown one by one. When the detection circuit 1002 is configured to be electrically connected to the installed filter component 11, at least two of the multiple detection terminals are used to be electrically connected to the installed filter component 11 to form a detection loop. For example, as Figure 33 shown, the filter component 11 includes a conductive portion 59a formed by a conductor. At least two of the multiple detection terminals being used to be electrically connected to the installed filter component 11 can mean that at least two of the multiple detection terminals are used to be electrically connected to the conductive portion 59a in the installed filter component 11. The conductive portion 59a has an avoidance space W1, and the avoidance space W1 is used to avoid other detection terminals, that is, to avoid other detection terminals that are not electrically connected to the conductive portion 59a in the installed filter component 11.

[0271] In some embodiments, by configuring the number and / or position of the avoidance spaces W1 on the conductive portion 59a, at least two of the multiple detection terminals can be electrically connected to the conductive portion 59a in the installed filter component 11 to form a detection loop. For example, the number of detection terminals is five. If the conductive portion 59a in the installed filter component 11 has one avoidance space, four detection terminals can be electrically connected to the conductive portion 59a in the installed filter component 11. If the conductive portion 59a in the installed filter component 11 has two avoidance spaces, three detection terminals can be electrically connected to the conductive portion 59a in the installed filter component 11.

[0272] For different models of the filter component 11, the conductive part 59a thereof can be configured to have avoidance spaces W1 with different numbers and / or positions, so that when the detection circuit 1002 is electrically connected to different models of the filter component 11, different combinations of detection terminals are respectively electrically connected to the conductive part 59a of different models of the filter component 11 to form different detection circuits. For example, different models of the filter component 11 include a first filter component, a second filter component and a third filter component. The conductive part of the first filter component has a first avoidance space, and the first avoidance space corresponds to the detection terminals TP4 and TP5, that is, the detection terminals TP1, TP2 and TP3 are electrically connected to the first filter component; the conductive part of the second filter component has a second avoidance space, and the second avoidance space corresponds to the detection terminals TP3, TP4 and TP5, that is, the detection terminals TP1 and TP2 are electrically connected to the second filter component; the conductive part of the third filter component has a third avoidance space, and the second avoidance space corresponds to the detection terminals TP1 and TP2, that is, the detection terminals TP3, TP4 and TP5 are electrically connected to the third filter component.

[0273] The detection circuit can refer to the circuit formed by the conductive part 59a of the installed filter component 11 and the detection circuit 1002. For example, when the conductive part 59a of the installed filter component 11 is electrically connected to the detection terminals TP1 and TP2, the detection circuit formed when the detection circuit 1002 is electrically connected to the installed filter component 11 is: TP1 → TP2 → voltage dividing circuit 1004b → voltage dividing circuit 1004c → voltage dividing circuit 1004d. In this detection circuit, the voltage dividing circuit 1004a is short-circuited. Another example is that when the conductive part 59a of the installed filter component 11 is electrically connected to the detection terminals TP1, TP2 and TP3, the detection circuit formed when the detection circuit 1002 is electrically connected to the installed filter component 11 is: TP1 → TP3 → voltage dividing circuit 1004c → voltage dividing circuit 1004d. In this detection circuit, both the voltage dividing circuit 1004a and the voltage dividing circuit 1004b are short-circuited.

[0274] In some embodiments, there is a common terminal between two adjacent voltage dividing circuits among a plurality of serially connected voltage dividing circuits. The other end of the first voltage dividing circuit among the plurality of serially connected voltage dividing circuits is a signal access terminal IN1, and the other end of the last voltage dividing circuit among the plurality of serially connected voltage dividing circuits is a ground terminal GND1. The common terminal, the signal access terminal IN1, and the ground terminal GND1 are respectively connected to a plurality of detection terminals in one-to-one correspondence. The signal access terminal IN1 can be directly or indirectly connected to a supply voltage Vcc, and the ground terminal GND1 can be directly or indirectly grounded. The magnitude of the supply voltage Vcc can be set according to actual requirements, and the embodiments of the present application do not limit this. For example, the supply voltage Vcc is a DC voltage of 3.3V. Taking the voltage dividing circuit 1004a as the first voltage dividing circuit among the plurality of voltage dividing circuits and the voltage dividing circuit 1004d as the last voltage dividing circuit among the plurality of voltage dividing circuits as an example, the common terminal between the voltage dividing circuit 1004a and the voltage dividing circuit 1004b is electrically connected to the detection terminal TP2, the common terminal between the voltage dividing circuit 1004b and the voltage dividing circuit 1004c is electrically connected to the detection terminal TP3, and the common terminal between the voltage dividing circuit 1004c and the voltage dividing circuit 1004d is electrically connected to the detection terminal TP4. The other end of the voltage dividing circuit 1004a is the signal access terminal IN1, which is electrically connected to the detection terminal TP1. The other end of the voltage dividing circuit 1004d is the ground terminal GND1, which is electrically connected to the detection terminal TP5. For example, the conductive part 59a of the installed filter assembly 11 is electrically connected to the detection terminal TP1 and the detection terminal TP2. When the detection circuit 1002 is electrically connected to the installed filter assembly 11, the formed detection loop is: supply voltage Vcc → TP1 → TP2 → voltage dividing circuit 1004b → voltage dividing circuit 1004c → voltage dividing circuit 1004d → ground terminal GND1. Another example is that the conductive part 59a of the installed filter assembly 11 is electrically connected to the detection terminal TP2 and the detection terminal TP3. When the detection circuit 1002 is electrically connected to the installed filter assembly 11, the formed detection loop is: supply voltage Vcc → voltage dividing circuit 1004a → TP2 → TP3 → voltage dividing circuit 1004c → voltage dividing circuit 1004d → ground terminal GND1.

[0275] In some embodiments, any common terminal (the common terminal between two voltage dividing circuits) can also be used as the output terminal OUT1 of the detection circuit 1002, that is, for Figure 44 the shown detection circuit 1002, the detection terminal TP2, or the detection terminal TP3, or the detection terminal TP4 can be used as the output terminal OUT1 of the detection circuit 1002. The voltage value of the output terminal OUT1 can be used as a detection signal, that is, the control circuit 1003 is used to determine the model of the installed filter assembly according to the voltage value of the output terminal OUT1.

[0276] In some embodiments, in the case where the ground terminal GND1 is indirectly grounded, the ground terminal GND1 can also be used as the output terminal OUT1 of the detection circuit 1002, that is, forFigure 44 For the detection circuit 1002 shown, the ground terminal GND1 is indirectly grounded through a resistor or other impedance element. The detection terminal TP5 can be used as the output terminal OUT1 of the detection circuit 1002, and the voltage value of the output terminal OUT1 can be used as a detection signal. That is, the control circuit 1003 is configured to determine the model of the installed filter component according to the voltage value of the output terminal OUT1.

[0277] Suppose, as Figure 44 shown, the detection terminal TP3 is used as the output terminal OUT1 of the detection circuit 1002. The signal access terminal IN1 is directly connected to the supply voltage Vcc. The resistance value of the voltage division circuit 1004a is RC1, the resistance value of the voltage division circuit 1004b is RC2, the resistance value of the voltage division circuit 1004c is RC3, and the resistance value of the voltage division circuit 1004d is RC4. In the case where the filter component 11 is not installed, the voltage value V of the output terminal OUT1 = Vcc - (Vcc * RC2 / (RC2 + RC3 + RC4)). If the conductive part 59a of the installed filter component 11 is electrically connected to the detection terminals TP1 and TP2, in this case, the voltage division circuit 1004a is short-circuited, and the voltage value V of the output terminal OUT1 = Vcc - (Vcc * (RC1 + RC2) / (RC1 + RC2 + RC3 + RC4)). If the conductive part 59a of the installed filter component 11 is electrically connected to the detection terminals TP3, TP4, and TP5, in this case, both the voltage division circuit 1004c and the voltage division circuit 1004d are short-circuited, and the voltage value V of the output terminal OUT1 = 0. If the conductive part 59a of the installed filter component 11 is electrically connected to the detection terminals TP1, TP2, and TP3, in this case, both the voltage division circuit 1004a and the voltage division circuit 1004b are short-circuited, and the voltage value V of the output terminal OUT1 = Vcc.

[0278] In some embodiments, at least two of the multiple detection terminals can also be used as access identification terminals of the installed filter component 11, and the control circuit 1003 is further configured to determine whether the installed filter component 11 is installed in place according to the level state of the access identification terminals. For example, in Figure 44 the detection circuit 1002 shown, the detection terminals TP1 and TP2 are used as the access identification terminals of the filter component 11. That is, for each type of filter component 11, after the filter component 11 is installed in place, both the detection terminals TP1 and TP2 will be electrically connected to the conductive part 59a of the filter component 11. In this case, in order to distinguish different types of filter components 11, the conductive part 59a of different types of filter components 11 can be configured to be electrically connected to one or more of the detection terminals TP3, TP4, and TP5.

[0279] Figure 44Only four voltage-dividing circuits are schematically shown. In the case where at least two detection terminals are set as the access identification terminals of the installed optical filter assembly 11, in order to enable the identification circuit 1001 to identify more models of optical filter assemblies, the detection circuit 1002 can be set to include a larger number of voltage-dividing circuits. For example, it can include seven, eight voltage-dividing circuits, etc., and further more detection terminals can be formed. The more detection terminals can further form more combinations of detection terminals to respectively correspond to different models of optical filter assemblies 11.

[0280] In some embodiments, each voltage-dividing circuit may include one or more resistors. In the case where any one of the multiple voltage-dividing circuits includes multiple resistors, the multiple resistors may have a series and / or parallel electrical connection structure, and the electrical connection structure of the multiple resistors can be set according to the resistance value of each resistor and the resistance value requirement of the voltage-dividing circuit. The embodiments of the present application do not limit this.

[0281] Figure 45 Take Figure 44 as an example where each voltage-dividing circuit includes one resistor and the grounding terminal GND1 is directly grounded. The voltage-dividing circuit 1004a includes the resistor R1, the voltage-dividing circuit 1004b includes the resistor R2, the voltage-dividing circuit 1004c includes the resistor R3, and the voltage-dividing circuit 1004d includes the resistor R4. The common terminal between the resistor R1 and the resistor R2 is electrically connected to the detection terminal TP2, the common terminal between the resistor R2 and the resistor R3 is electrically connected to the detection terminal TP3, and the common terminal between the resistor R3 and the resistor R4 is electrically connected to the detection terminal TP4. The other end of the resistor R1 is the signal access terminal IN1, which is electrically connected to the detection terminal TP1, and the other end of the resistor R4 is the grounding terminal GND1, which is electrically connected to the detection terminal TP5. The resistance values of the resistor R1, the resistor R2, the resistor R3, and the resistor R4 can all be set according to the actual detection requirements of the optical filter assembly. The embodiments of the present application do not limit this. The common terminal between the resistor R1 and the resistor R2, or the common terminal between the resistor R2 and the resistor R3, or the common terminal between the resistor R3 and the resistor R4 can be used as the output terminal OUT1 of the detection circuit 1002.

[0282] In some embodiments, the supply voltage Vcc directly or indirectly accessed by the signal access terminal IN1 may have surges (for example, surge voltage and / or surge current). For example, the skin treatment device 1000 can be directly connected to the mains power supply, and the supply voltage Vcc is obtained through mains power conversion. In order to prevent the backend circuit (for example, the controller 1003) from being damaged by the surge voltage and / or surge current, as a further improvement to Figure 44 the detection circuit 1002 shown, Figure 46The detection circuit 1002 shown may further include a first surge protection circuit 1005a and a second surge protection circuit 1005b. The first surge protection circuit 1005a can be used to protect the signal access terminal IN1 against surges, and the second surge protection circuit 1005b can be used to protect the output terminal OUT1 of the detection circuit 1002 against surges.

[0283] For example, both the first surge protection circuit 1005a and the second surge protection circuit 1005b include a first end and a second end. The first end of the first surge protection circuit 1005a is electrically connected to the signal access terminal IN1, that is, the first end of the first surge protection circuit 1005a is electrically connected to the other end of the first voltage dividing circuit among the plurality of voltage dividing circuits. The second end of the first surge protection circuit 1005a can be directly or indirectly grounded. The first end of the second surge protection circuit 1005b is electrically connected to the output terminal OUT1 of the detection circuit 1002, and the second end of the second surge protection circuit 1005b can be directly or indirectly grounded.

[0284] In some embodiments, the first surge protection circuit 1005a and the second surge protection circuit 1005b can be surge protection circuits composed of zener diodes, transient voltage suppressors (TVS) diodes, etc. The first surge protection circuit 1005A and the second surge protection circuit 1005b can not only suppress surges, but also make the voltages of the corresponding electrical connection terminals (signal access terminal IN1, output terminal OUT1 of the detection circuit 1002) have higher stability, which is convenient for voltage detection.

[0285] As Figure 47 shown, it is schemed that both the first surge protection circuit 1005a and the second surge protection circuit 1005b include a bidirectional TVS diode D1. The cathodes of the two bidirectional TVS diodes D1 are respectively electrically connected to the signal access terminal IN1 and the output terminal OUT1 of the detection circuit 1002, and the anodes of the two bidirectional TVS diodes D1 are directly or indirectly grounded.

[0286] In some embodiments, the detection circuit 1002 and the control circuit 1003 can be arranged on different circuit boards. For example, the control circuit 1003 can be arranged on the original main board of the skin treatment device 1000. For example, as Figure 47 shown, the detection circuit 1002 may further include a first connector CON1. The detection circuit 1002 can be electrically connected to the main board through the first connector CON1 to receive the supply voltage Vcc provided by the main board, and provide the detection signal output from the output terminal OUT1 to the control circuit 1003 on the main board, which is convenient for identifying the model of the installed filter component without changing the original main board circuit / component layout.

[0287] As Figure 48 shown, as another alternative, the detection circuit 1002 may include a plurality of detection terminals, a ground terminal GND2, and a plurality of detection branches. The number of detection terminals may be set according to the number of detection branches. Figure 48 Taking two detection branches 1006a and 1006b as an example, the number of corresponding detection terminals is three, namely detection terminal TP1, detection terminal TP2, and detection terminal TP3. Detection terminal TP1 and detection terminal TP2 are respectively electrically connected to detection branch 1006a and detection branch 1006b, and detection terminal TP3 is electrically connected to ground terminal GND2. The number of detection terminals and detection branches may be set according to the actual detection requirements of the filter component, and the embodiments of the present application do not limit this.

[0288] In some embodiments, the plurality of detection terminals may be divided into a first detection terminal and a second detection terminal. The first detection terminal may be one and is used to correspond to the ground terminal GND2, and the second detection terminal may be multiple and is used to correspond to the plurality of detection branches. That is, in Figure 48 this case, detection terminal TP1 and detection terminal TP2 are the second detection terminals, and detection terminal TP3 is the first detection terminal.

[0289] The ground terminal GND2 may be directly or indirectly grounded. Detection terminal TP3 is electrically connected to the ground terminal GND2 so as to be configured such that when the detection circuit 1002 is electrically connected to filter components 11 of different models, the detection terminal TP3 is used to be electrically connected to the conductive part 59a of the filter component 11.

[0290] In some embodiments, each of the plurality of detection branches may include a first end and a second end. The first end of each detection branch may be used to directly or indirectly access the supply voltage Vcc, and the second end of each detection branch may be electrically connected to the plurality of second detection terminals in a one-to-one correspondence. The plurality of second detection terminals may be configured such that when the detection circuit 1002 is electrically connected to filter components 11 of different models, at least one of the plurality of second detection terminals is used to be electrically connected to the installed filter component 11 to form a detection loop.

[0291] For example, as Figure 48As shown, the detection circuit 1002 includes a detection branch 1006a and a detection branch 1006b. The first end of the detection branch 1006a is directly or indirectly connected to the supply voltage Vcc. The second end of the detection branch 1006a is electrically connected to the detection terminal TP1. The first end of the detection branch 1006b is directly or indirectly connected to the supply voltage Vcc. The second end of the detection branch 1006b is electrically connected to the detection terminal TP2. The detection terminal TP1 and the detection terminal TP2 can be configured such that when the detection circuit 1002 is electrically connected to different models of the filter component 11, at least one of the detection terminal TP1 and the detection terminal TP2 is used to be electrically connected to the conductive part 59a of the installed filter component 11 to form a detection loop.

[0292] In some embodiments, multiple second detection terminals can also serve as the output terminals of the detection circuit 1002. The level states of the multiple second detection terminals can form a detection signal, that is, the control circuit 1003 can determine the model of the installed filter component 11 based on the level states of the multiple second detection terminals. The level states can include a high level and a low level. The voltages corresponding to the high level and the low level can be set according to actual detection requirements. The embodiments of the present application do not limit this. For example, it can be set according to the level discrimination of the control circuit 1003.

[0293] For example, when configured in a situation where the filter component 11 is not installed, the level states of the multiple second detection terminals are high levels, that is, the initial states of the detection terminal TP1 and the detection terminal TP2 are high levels. When the filter component 11 is not installed, the detection circuit 1002 includes two loops: TP1 → detection branch 1006a → ground terminal GND2, TP2 → detection branch 1006b → ground terminal GND2. If the conductive part 59a of the installed filter component 11 is electrically connected to the detection terminal TP1 and the detection terminal TP3, in this case, the detection branch 1006a is short-circuited by the connection of the detection terminal TP1 and the detection terminal TP3, and the detection circuit 1002 has a loop: TP2 → detection branch 1006b → ground terminal GND2. Another example is that if the conductive part 59a of the installed filter component 11 is electrically connected to the detection terminal TP3 and the detection terminal TP3, in this case, the detection branch 1006b is short-circuited by the connection of the detection terminal TP2 and the detection terminal TP3, and the detection circuit 1002 has a loop: TP1 → detection branch 1006a → ground terminal GND2.

[0294] For Figure 48 For the detection circuit 1002 shown, the output terminals OUT2 and OUT3 of the detection circuit 1002 are respectively electrically connected to the detection terminals TP1 and TP2. The detection circuit 1002 can support the identification of three models of the filter component 11. The level states corresponding to each model of the filter component 11 are shown in Table 1 below.

[0295] Table 1

[0296] Filter component connection situation TP1 TP2 Filter component not connected High level High level First - type filter component connected Low level High level Second - type filter component connected High level Low level Third - type filter component connected Low level Low level

[0297] In some embodiments, for Figure 48 the detection circuit 1002 shown, in order to identify more models of the filter component 11, more second detection terminals and more detection branches can be configured. For example, as Figure 49 shown, three second detection terminals (detection terminals TP1, TP2, TP4) and three detection branches (detection branches 1006a, 1006b, 1006c) are configured. The output terminals OUT2, OUT3, OUT4 of the detection circuit 1002 are respectively electrically connected to the detection terminals TP1, TP2, TP4, Figure 49 the detection circuit 1002 shown can support the identification of seven models of the filter component 11.

[0298] In some embodiments, at least one of the multiple second detection terminals can also be used as an access identification terminal for the installed filter component 11, and the control circuit 1003 is further configured to determine whether the installed filter component 11 is installed in place according to the level state of the access identification terminal. For example, in Figure 49 the detection circuit 1002 shown, the detection terminal TP3 is electrically connected to the ground terminal GND2, and the detection terminal TP3 is configured to be electrically connected to the conductive part 59a of the filter component 11 when the detection circuit 1002 is electrically connected to different models of the filter component 11. If the detection terminal TP1 is used as the access identification terminal for the filter component 11, that is, for each type of filter component 11, after the filter component 11 is installed in place, both the detection terminal TP1 and the detection terminal TP3 will be electrically connected to the conductive part 59a of the filter component 11, and the detection terminal TP1 is grounded through the detection terminal TP3. That is, the control circuit 1003 can determine whether the installed filter component 11 is installed in place by detecting whether the detection terminal TP1 is at a low level. If the detection terminal TP1 is at a low level, it indicates that the filter component 11 is installed in place. If the detection terminal TP1 is at a high level, it indicates that the filter component 11 is not installed in place. In this case, in order to distinguish different types of filter components 11, the conductive parts 59a of different types of filter components 11 can be configured to be electrically connected to one or more of the detection terminals TP2 and TP4.

[0299] In some embodiments, each detection branch may include one or more resistors. In the case where any one of the multiple detection branches includes multiple resistors, the multiple resistors may have a series and / or parallel electrical connection structure, and the electrical connection structure of the multiple resistors can be set according to actual circuit requirements, which is not limited in the embodiments of the present application.

[0300] Figure 50 Taking Figure 49Taking each detection branch in including a resistor as an example for illustration. Detection branch 1006a includes resistor R5, detection branch 1006b includes resistor R6, and detection branch 1006c includes resistor R7. One end of resistor R5 is used to directly or indirectly connect to the supply voltage Vcc, and the other end of resistor R5 is electrically connected to the detection terminal TP1. One end of resistor R6 is used to directly or indirectly connect to the supply voltage Vcc, and the other end of resistor R6 is electrically connected to the detection terminal TP2. One end of resistor R7 is used to directly or indirectly connect to the supply voltage Vcc, and the other end of resistor R7 is electrically connected to the detection terminal TP4. The resistance values of resistor R5, resistor R6, and resistor R7 can all be set according to the detection requirements of the actual light filtering component, and the embodiments of the present application do not limit this. The other ends of resistor R5, resistor R6, and resistor R7 can also be used as the output terminals OUT2, OUT3, and OUT4 of the detection circuit 1002.

[0301] In some embodiments, there may be surges in the supply voltage Vcc directly or indirectly connected to the detection branch. To avoid damage to the backend circuit (for example, the controller 1003) by the surge voltage and / or surge current, as an improvement to Figure 49 the detection circuit 1002 shown in , Figure 51 the detection circuit 1002 shown in may further include a third surge protection circuit 1007a, a fourth surge protection circuit 1007b, and a fifth surge protection circuit 1007c. The third surge protection circuit 1007a can be used to protect the output terminal OUT2 of the detection circuit 1002 against surges, the fourth surge protection circuit 1007b can be used to protect the output terminal OUT3 of the detection circuit 1002 against surges, and the fifth surge protection circuit 1007c can be used to protect the output terminal OUT4 of the detection circuit 1002 against surges.

[0302] For example, the third surge protection circuit 1007a, the fourth surge protection circuit 1007b, and the fifth surge protection circuit 1007c all include a first end and a second end. The first end of the third surge protection circuit 1007a is electrically connected to the output terminal OUT2 of the detection circuit 1002, and the second end of the third surge protection circuit 1007a can be directly or indirectly grounded. The first end of the fourth surge protection circuit 1007b is electrically connected to the output terminal OUT3 of the detection circuit 1002, and the second end of the fourth surge protection circuit 1007b can be directly or indirectly grounded. The first end of the fifth surge protection circuit 1007c is electrically connected to the output terminal OUT4 of the detection circuit 1002, and the second end of the fifth surge protection circuit 1007c can be directly or indirectly grounded.

[0303] In some embodiments, the third surge protection circuit 1007a, the fourth surge protection circuit 1007b, and the fifth surge protection circuit 1007c can all be surge protection circuits composed of a zener diode, a TVS diode, etc. The third surge protection circuit 1007a, the fourth surge protection circuit 1007b, and the fifth surge protection circuit 1007c can not only suppress surges, but also make the voltages of the corresponding electrical connection terminals (output terminals OUT2, OUT3, OUT4 of the detection circuit 1002) have high stability, facilitating level detection.

[0304] As Figure 52 shown, it is schematically shown that the third surge protection circuit 1007a, the fourth surge protection circuit 1007b, and the fifth surge protection circuit 1007c all include a bidirectional TVS diode D1. The cathodes of the three bidirectional TVS diodes D1 are respectively electrically connected to the output terminals OUT2, OUT3, OUT4 of the detection circuit 1002, and the anodes of the three bidirectional TVS diodes D1 are directly or indirectly grounded.

[0305] In some embodiments, the detection circuit 1002 and the control circuit 1003 can be arranged on different circuit boards. For example, the control circuit 1003 can be arranged on the original main board of the skin treatment device 1000. For example, as Figure 52 shown, the detection circuit 1002 can further include a second connector CON2. The detection circuit 1002 can be electrically connected to the main board through the second connector CON2 to receive the power supply voltage Vcc provided by the main board, and to provide the detection signals output from the output terminals OUT2, OUT3, OUT4 to the control circuit 1003 on the main board, facilitating the identification of the model of the installed filter component without changing the original main board circuit / component layout.

[0306] In some embodiments, the control circuit 1003 can be, but is not limited to, a controller or chip with data and information processing functions such as a micro control unit (MCU). For example, if the control circuit 1003 is used to determine the model of the installed filter component according to the voltage value at the output terminal of the detection circuit 1002, the control circuit 1003 can include a controller or chip with analog-to-digital sampling function / analog-to-digital sampling pins. If the control circuit 1003 is used to determine the model of the installed filter component according to the combination of the level states at the output terminals of the detection circuit 1002, the control circuit 1003 can include general purpose input / output pins (GPIO). The control circuit 1003 involved in the embodiments of the present application can rely on existing computer programs to implement the function of determining the model of the filter component 11 based on the detection signal, that is, the embodiments of the present application do not involve the improvement of the computer programs running inside the control circuit 1003.

[0307] In some embodiments, as Figure 53 shown, the device body 10 may further include a light source 22, an identification circuit 1001, and a driving circuit 1008. The identification circuit 1001 includes a detection circuit 1002 and a control circuit 1003. The driving circuit 1008 is configured to drive the light source 22 to emit light. The driving circuit 1022 is further configured to be electrically connected to the control circuit 1003. The control circuit 1003 can adjust the driving signal output by the driving circuit 1008 for driving the light source 22 to emit light according to the model of the installed filter component 11. For example, different models of the filter component 11 correspond to different light source driving modes, different light source driving modes correspond to different driving signals, and the light source 22 can emit light of different wavelength bands or different types under different light source driving modes. After the control circuit 1003 identifies the model of the filter component 11 installed on the light-emitting path of the light source 22, it controls the driving circuit 1008 to output a driving signal matching the model of the filter component 11 to drive the light source 22 to emit light.

[0308] When a certain model of the filter component 11 is installed on the skin treatment device 1000 and the skin treatment device 1000 is powered on, the detection circuit 1002 can be electrically connected to the conductive part 59a of the filter component 11 to form a detection loop, so as to output a detection signal corresponding to the filter component 11. The control circuit 1003 can receive the detection signal output by the detection circuit 1002 and can determine the model of the filter component 11 according to the detection signal, so that the skin treatment device 1000 has the function of detecting the model of the installed filter component. Further, the control circuit 1003 can also adjust the driving signal output by the driving circuit 1008 for driving the light source 22 to emit light according to the model of the filter component 11, so that the driving signal output by the driving circuit 1008 matches the model of the filter component 11, realizing that the light source 22 can emit light of different wavelength bands or different types in the case of installing different models of the filter component 11, so that the skin treatment device 1000 can realize the skin treatment function matching the model of the filter component 11.

[0309] Through the description of the above embodiments, those skilled in the art can clearly understand that for the convenience and simplicity of description, only the above division of each functional module is used as an example. In practical applications, the above functions can be allocated to different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.

[0310] In several embodiments provided by the present application, it should be understood that the disclosed system can be implemented in other ways. For example, the system embodiments described above are merely illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or direct coupling or communication connection between each other can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be in electrical, mechanical or other forms.

[0311] For those skilled in the art, it is obvious that the present application is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, as long as it is within the scope of the substantial spirit of the present application, the appropriate changes and variations made to the above embodiments should fall within the scope of the claims of the present application.

Claims

1. A recognition circuit, characterized in that: The identification circuit comprises: A detection circuit, used to be electrically connected to the installed filter assembly and output a detection signal corresponding to the installed filter assembly, wherein the detection circuit is configured to form a detection loop when electrically connected to the filter assembly, and the detection circuit is further configured to form different detection loops when electrically connected to filter assemblies of different models; A control circuit is electrically connected to the detection circuit, and the control circuit is used to determine the model of the installed filter component according to the detection signal.

2. The identification circuit according to claim 1, characterized in that: The detection circuit comprises a plurality of detection terminals, and the detection circuit is configured such that when the detection circuit is electrically connected to the installed optical filter assembly, at least two detection terminals among the plurality of detection terminals are used to be electrically connected to the installed optical filter assembly to form a detection loop; The detection circuit is also configured so that when electrically connected to filter components of different models, different detection terminal combinations are electrically connected to filter components of different models respectively to form different detection loops.

3. The identification circuit according to claim 2, characterized in that: The detection circuit also includes a plurality of voltage-dividing circuits connected in series, and the plurality of detection ends are correspondingly connected to the two ends of the plurality of voltage-dividing circuits. The detection circuit is configured such that when electrically connected to the filter component, at least two of the plurality of detection ends are used to electrically connect to the conductor on the installed filter component to form a detection loop.

4. The identification circuit according to claim 3, characterized in that: Two adjacent voltage divider circuits in the series-connected plurality of voltage divider circuits have a common terminal; the other end of the first voltage divider circuit in the series-connected plurality of voltage divider circuits is a signal access terminal, and the other end of the last voltage divider circuit in the series-connected plurality of voltage divider circuits is a ground terminal; The common terminal, the signal access terminal and the ground terminal are respectively connected to the plurality of detection terminals in a one-to-one correspondence; The signal access terminal is directly or indirectly connected to a power supply voltage, and the ground terminal is directly or indirectly connected to ground.

5. The identification circuit according to claim 4, characterized in that: One of the common terminals is used as an output terminal, or the ground terminal is also used as an output terminal, and the voltage value of the output terminal is used as the detection signal; and / or, Each of the plurality of voltage-dividing circuits comprises one or more resistors, and in the case where any one of the plurality of voltage-dividing circuits comprises a plurality of resistors, the plurality of resistors have a series and / or parallel electrical connection structure; and / or, At least two of the plurality of detection terminals are also used as access identification terminals of the installed optical filter component, and the control circuit is further used to determine whether the installed optical filter component is installed in place according to the level state of the access identification terminal; and / or, The detection circuit also includes a first surge protection circuit and a second surge protection circuit, each of which includes a first end and a second end, the first end of the first surge protection circuit is electrically connected to the other end of the first voltage divider circuit, the second end of the first surge protection circuit is directly or indirectly grounded, the first end of the second surge protection circuit is electrically connected to the output end, and the second end of the second surge protection circuit is directly or indirectly grounded.

6. The identification circuit according to claim 2, characterized in that: The detection circuit further includes a ground terminal and a plurality of detection branches, the plurality of detection terminals include a first detection terminal and a plurality of second detection terminals, the first detection terminal is electrically connected to the ground terminal, and is configured to be electrically connected to the filter component when the detection circuit is electrically connected to filter components of different models; The first ends of the multiple detection branches are directly or indirectly connected to the power supply voltage; The multiple second detection ends are electrically connected to the second ends of the multiple detection branches one by one, respectively. The multiple second detection ends are configured so that when the detection circuit is electrically connected to filter components of different models, at least one of the multiple second detection ends is used to be electrically connected to the installed filter component to form a detection circuit, and the electrical level states of the multiple second detection ends constitute the detection signal.

7. The identification circuit according to claim 6, characterized in that: The detection circuit further includes a connector, wherein the connector has a plurality of signal terminals, and the plurality of signal terminals are electrically connected to the plurality of second detection terminals in a one-to-one correspondence; and / or, At least one of the plurality of second detection terminals is further used as an access identification terminal of the installed optical filter component, and the control circuit is further used to determine whether the installed optical filter component is installed in place according to the level state of the access identification terminal; and / or, The detection circuit further includes a plurality of surge protection circuits, each of the plurality of surge protection circuits includes a first end and a second end, the first ends of the plurality of surge protection circuits are electrically connected to the plurality of second detection ends in a one-to-one correspondence, and the second ends of the plurality of surge protection circuits are directly or indirectly grounded; and / or, Each of the plurality of detection branches includes one or more resistors. When any one of the plurality of detection branches includes a plurality of resistors, the plurality of resistors have a series and / or parallel electrical connection structure.

8. A skin treatment device, characterized in that: The device comprises a device body and a plurality of filter components, wherein the device body comprises a light source and an identification circuit as described in any one of claims 1 to 7, wherein one of the plurality of filter components is detachably mounted on a light output path of the light source, and the filter component is electrically connected to the identification circuit to form a detection circuit.

9. The skin treatment device according to claim 8, characterized in that The skin treatment device further comprises a driving circuit for driving the light source to emit light, the driving circuit is also electrically connected to the control circuit, and the control circuit is further used to adjust the driving signal output by the driving circuit for driving the light source to emit light according to the model of the installed filter component; and / or, The device body is provided with a slot located on the light output path of the light source and a plug-in port connected to the slot, and the plurality of filter components are used to be selectively and detachably installed in the slot through the plug-in port.

10. The skin treatment device according to claim 8, characterized in that The filter assembly comprises a conductive portion formed by a conductor, the conductive portion has a clearance position, the conductive portion is used to be electrically connected to at least two detection terminals of the detection circuit, and the clearance position is used to clear the remaining detection terminals.

Images