Functional output head and skin treatment device

Abstract

This invention discloses a functional output head and a skin treatment device. When the functional output head is installed on the device body, the housing is installed in an assembly slot. The housing can protrude partially from the assembly slot or be entirely within it. During the installation of the housing in the assembly slot, a connecting buckle extends into the housing from a first through hole and engages with a mating fastener adjacent to the first through hole to secure the functional output head to the device body. Because the mating fastener is located inside the first through hole (i.e., does not protrude), it does not affect the appearance of the functional output head. Therefore, the functional output head can be stably placed on a table or countertop with the first through hole facing downwards, improving the convenience and stability of its placement.

Description

Technical Field

[0001] This invention relates to the field of skin care technology, and in particular to a functional output head and skin treatment device. Background Technology

[0002] In recent years, with the rapid development of China's economy, the advancement of science and technology, and the continuous improvement of living standards, people are not only pursuing a higher quality of life in terms of material and spiritual well-being, but also paying more attention to skin care. Among these, skin care devices, as a type of device used to regulate and improve skin condition, can deeply stimulate the activity of skin cells, thereby promoting skin metabolism and cell proliferation, and delaying facial aging. In related technologies, skin care devices include a body and a beauty head, which are fixed together by a snap-fit ​​structure. However, the snaps on the beauty head protrude from the shell, making it impossible to place the beauty head stably. Summary of the Invention

[0003] The main objective of this invention is to provide a skin treatment device that addresses the technical problem of improving the stability of the functional output head placement.

[0004] To achieve the above objectives, the skin treatment device proposed in this invention includes:

[0005] The fuselage includes a housing, one end of which is provided with an assembly groove, and a connecting buckle is provided inside the housing, with the connecting buckle extending out from the bottom of the assembly groove;

[0006] A function output head is detachably installed in the assembly slot. The function output head includes a housing and a function output component installed in the housing. The housing has a first through hole at one end facing the bottom of the assembly slot. The housing has a mating fastener adjacent to the first through hole. The mating fastener is located on the side of the first through hole facing away from the bottom of the assembly slot.

[0007] When the functional output head is installed in the assembly slot, the connecting buckle extends into the housing from the first through hole and engages with the mating buckle to fix it in place.

[0008] Optionally, the housing includes a first end plate, the first through hole is formed in the first end plate, the mating fastener includes a first connecting part and a first snap-fit ​​part provided at the end of the first connecting part, the projection of the first snap-fit ​​part on the first end plate is at least partially located in the projection area of ​​the first through hole, the first snap-fit ​​part has a first snap-fit ​​surface facing away from the first through hole, and the connecting buckle engages with the first snap-fit ​​surface.

[0009] Optionally, the first connecting portion extends along the depth direction of the first through hole, and the projection of the first connecting portion on the first end plate is located outside the projection area of ​​the first through hole.

[0010] Optionally, the housing includes a first end plate, the first through hole is formed in the first end plate, the function output head further includes a support frame installed in the housing, the support frame is located between the function output component and the first end plate to support the function component in the function output head, and the mating fastener is connected to the side of the support frame facing the first end plate.

[0011] Optionally, the function output head further includes a circuit board installed in the housing, the circuit board being located between the first end plate and the support frame, the support frame having a first connecting post protruding on the side facing the first end plate, the circuit board being connected to the first connecting post; the circuit board having a third through hole, the third through hole being correspondingly arranged with the first through hole.

[0012] Optionally, the circuit board is provided with connection pins, and the first end plate is provided with a fourth through hole exposing the connection pins, the fourth through hole being located on one side of the first through hole; and / or,

[0013] The housing includes a housing body with an open end, the housing body including a skin-fitting plate and a surrounding plate disposed around the skin-fitting plate, and a first end plate installed at the open end; and the first end plate is provided with an abutting protrusion and a mounting buckle, the abutting protrusion abutting against the circuit board, and the mounting buckle engaging with the side of the circuit board opposite to the first end plate, so that the first end plate is installed at the open end; and / or, the first end plate is provided with a ventilation notch around its perimeter to form a ventilation channel with the inner side of the housing body; and / or, the first connecting post is a screw hole post, the circuit board is connected to the first connecting post by a first fastener, and the first end plate is provided with a first clearance groove corresponding to the first fastener; and / or

[0014] The first through hole is rectangular.

[0015] Optionally, the housing includes a shell body with one open end, the shell body including a skin-fitting plate and a surrounding plate disposed around the periphery of the skin-fitting plate, the first end plate being installed at the open end; the inner side of the surrounding plate is provided with a second screw post, and the support frame is installed to the second screw post by a third fastener; and / or,

[0016] The functional output head is a phototherapy head, which also includes a cooling structure and a heat dissipation structure. The functional output component includes a light source for generating light energy that acts on the skin. The cooling structure is partially exposed on the skin-adhesive plate, and the heat dissipation structure is used to dissipate heat from the functional output component. The heat dissipation structure includes a second fan and a radiator. The support frame includes an annular support portion and multiple support ribs located on the inner side of the annular support portion. The multiple support ribs divide the space inside the annular support portion into at least two ventilation holes. The mating fastener is located on one of the support ribs and on one side of one of the ventilation holes. The second fan is installed on the annular support portion and dissipates heat through the ventilation hole. Alternatively, the functional output head is an ultrasonic cannon head, which includes an ultrasonic transducer and is installed on the support frame.

[0017] Optionally, the inner side of the open end of the shell body is provided with a stop groove, the second screw post extends to the stop groove, and the support frame abuts against the bottom of the stop groove.

[0018] Optionally, the connecting buckle is rotatably mounted on the housing and has a locked position and an unlocked position. When the connecting buckle is in the locked position, it is engaged and fixed with the mating buckle. When the connecting buckle is in the unlocked position, it is disengaged from the mating buckle.

[0019] Optionally, the connecting buckle includes a second connecting part, a second latching part, and a transmission part. The second connecting part is rotatably mounted on the housing, and the second latching part and the transmission part are respectively connected to both ends of the second connecting part. The housing has an unlocking port, and the body also includes an unlocking key and a transmission component. The unlocking key is movably mounted on the unlocking port, and the transmission component is movably mounted between the transmission part and the unlocking key to transmit the movement of the unlocking key and the transmission part to each other. The second latching part is located on the side of the second connecting part opposite to the transmission component.

[0020] The transmission component is used to push the transmission part to rotate when the unlock key is pressed, so as to drive the second locking part to rotate from the locked position to the unlocked position.

[0021] Optionally, the housing is provided with a support portion located on the side of the transmission portion away from the transmission component. The housing also includes an elastic reset component, one end of which is connected to the transmission portion and the other end of which is connected to the support portion. The elastic reset component is used to reset the unlock button by pushing the transmission portion to reset, and to reset the second latching portion to the locking position.

[0022] Optionally, the transmission part has a protruding positioning post, and one end of the elastic reset member is sleeved on the positioning post; and / or, the support part has a limiting groove, and the other end of the elastic reset member is disposed in the limiting groove.

[0023] Optionally, the first engaging portion has a first guide slope on the side facing the first through hole. When the second engaging portion passes the first engaging portion, the first guide slope is used to allow the second engaging portion to slide against it, thereby squeezing the second engaging portion out of the locking position; and / or,

[0024] The second snap-fit ​​portion is provided with a second guide slope. When the second snap-fit ​​portion passes the first snap-fit ​​portion, the second guide slope is used to slide against the first snap-fit ​​portion so that the first snap-fit ​​portion pushes the second snap-fit ​​portion out of the locking position.

[0025] Optionally, the outer peripheral wall of the housing is provided with a mis-proof groove, and the inner side wall of the housing at the assembly groove is provided with a positioning rib, and the mis-proof groove cooperates with the positioning rib.

[0026] The present invention also proposes a functional output head for use in a skin treatment device. The functional output head includes a housing and a functional output component installed within the housing. One end of the housing has a first through hole, and the housing has a mating fastener adjacent to the first through hole, the mating fastener being located inside the first through hole. The first through hole and the mating fastener are configured such that when the housing is installed on the body of the skin treatment device, a connecting buckle on the body extends from the first through hole into the housing and engages with the mating fastener for fixation.

[0027] In the technical solution of the skin treatment device of the present invention, when the functional output head is installed on the body, the housing is installed in the assembly slot. At this time, the housing can partially protrude from the assembly slot or be completely located within the assembly slot. During the installation of the housing in the assembly slot, the connecting buckle extends into the housing from the first through hole and engages with the mating buckle adjacent to the first through hole to fix it in place, thereby realizing the assembly of the functional output head and the body. Since the mating buckle is located inside the first through hole, that is, it does not protrude from the first through hole, it will not affect the appearance of the functional output head. Thus, the functional output head can be stably placed on a table or countertop with the first through hole facing downwards, improving the placement convenience and stability of the functional output head. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of an embodiment of the skin treatment device of the present invention;

[0030] Figure 2 This is an exploded view of an embodiment of the skin treatment device of the present invention;

[0031] Figure 3 This is an exploded view of the skin treatment device of the present invention from another direction;

[0032] Figure 4 This is a structural cross-sectional view of an embodiment of the skin treatment device of the present invention;

[0033] Figure 5 for Figure 4 A magnified view of a section at point A in the middle;

[0034] Figure 6 This is a structural anatomical view of an embodiment of the skin treatment device of the present invention;

[0035] Figure 7 for Figure 6 A magnified view of a section at point B in the middle;

[0036] Figure 8 This is a structural cross-sectional view of an embodiment of the functional output head in this invention;

[0037] Figure 9 This is a cross-sectional view of the functional output head in another direction in this invention;

[0038] Figure 10 This is a schematic diagram of the support frame in this invention;

[0039] Figure 11 This is a schematic diagram of the structure of an embodiment of the first end plate in this invention;

[0040] Figure 12 This is a schematic diagram of another embodiment of the first end plate in this invention;

[0041] Figure 13 This is a schematic diagram of the structure of one embodiment of the shell body in this invention;

[0042] Figure 14 This is an enlarged cross-sectional view of a portion of the fuselage structure in this invention;

[0043] Figure 15 This is a cross-sectional view of the unlocking structure in this invention;

[0044] Figure 16 This is a schematic diagram of the transmission component in this invention;

[0045] Figure 17 This is a cross-sectional view of the transmission component in this invention;

[0046] Figure 18 This is a partially enlarged view of the internal structure of the fuselage in this invention;

[0047] Figure 19 This is an enlarged cross-sectional view of a partial structure of another embodiment of the fuselage in this invention;

[0048] Figure 20 This is a schematic diagram of the skin treatment device of the present invention in orthographic projection;

[0049] Figure 21 This is an exploded view of another embodiment of the skin treatment device of the present invention;

[0050] Figure 22 This is an exploded and enlarged view of a portion of the fuselage structure in this invention;

[0051] Figure 23 This is an exploded and enlarged view of a partial structure of another embodiment of the fuselage in this invention;

[0052] Figure 24 This is an exploded view of another embodiment of the skin treatment device of the present invention;

[0053] Figure 25 This is a structural cross-sectional view of an embodiment of the fuselage in this invention;

[0054] Figure 26 This is a structural cross-sectional view of another embodiment of the fuselage in this invention;

[0055] Figure 27 This is a structural cross-sectional view of another embodiment of the fuselage in this invention;

[0056] Figure 28 This is an exploded projection diagram of the fuselage structure of one embodiment of the present invention;

[0057] Figure 29 This is a schematic diagram of an orthographic projection of an embodiment of the partition bracket in this invention;

[0058] Figure 30 This is an enlarged view of the structure of the mounting base in this invention;

[0059] Figure 31 This is a schematic diagram of the structure of one embodiment of the functional output head in this invention;

[0060] Figure 32This is a schematic diagram of the fuselage from another direction in this invention;

[0061] Figure 33 This is an enlarged view of the assembly groove structure in this invention;

[0062] Figure 34 This is a structural cross-sectional view of another embodiment of the functional output head in this invention;

[0063] Figure 35 This is a structural cross-sectional view of another embodiment of the fuselage in this invention;

[0064] Figure 36 This is a structural cross-sectional view of yet another embodiment of the functional output head in this invention;

[0065] Figure 37 This is an exploded view of the structure of the functional output head in this invention;

[0066] Figure 38 This is an exploded view of the internal structure of the functional output head in this invention;

[0067] Figure 39 This is a schematic diagram of the light-diffusing element in this invention;

[0068] Figure 40 This is a schematic diagram of the structure of the heat-conducting component in this invention;

[0069] Figure 41 This is a cross-sectional view of the shell body in this invention;

[0070] Figure 42 This is a schematic diagram of the connecting bracket in this invention;

[0071] Figure 43 This is a structural cross-sectional view of another embodiment of the functional output head in this invention.

[0072] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0073] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0074] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0075] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0076] This invention proposes a skin treatment device.

[0077] The skin treatment device provided in this application is mainly used for skin care, which can be for cosmetic or therapeutic purposes. The skin can be from human parts of the body or animal parts. Specifically, human parts of the body can be facial skin, hand skin, leg skin, abdominal skin, or skin from other parts of the body. As a common application, this application uses a beauty device as an example for illustration.

[0078] In embodiments of the present invention, such as Figures 1 to 5 As shown, the skin treatment device includes a body 10 and a function output head 30, which is installed at one end of the body 10.

[0079] Optionally, the function output head 30 can be detachably installed at one end of the body 10, which facilitates cleaning or replacement of the function output head 30. If there are multiple function output heads 30, one of the multiple function output heads 30 can be detachably installed at one end of the body 10.

[0080] Optionally, one end of the body 10 is provided with an assembly slot 12, and the function output head 30 is detachably installed in the assembly slot 12 to protect the function output head 30.

[0081] In one embodiment, such as Figures 1 to 5As shown, the body 10 includes a housing 11, one end of which is provided with an assembly groove 12. A connecting buckle 20 is provided in the assembly groove 12, and the connecting buckle 20 extends out from the bottom of the assembly groove 12. The function output head 30 is detachably installed in the assembly groove 12. The function output head 30 includes a housing 31 and a function output component 32 installed in the housing 31. The housing 31 has a first through hole 311 at one end facing the assembly groove 12. The housing 31 has a mating fastener 40 adjacent to the first through hole 311. The mating fastener 40 is located on the side of the first through hole 311 facing away from the assembly groove 12. When the function output head 30 is installed in the assembly groove 12, the connecting buckle 20 extends from the first through hole 311 into the housing 31 and engages with the mating fastener 40 for fixation.

[0082] In this embodiment, the body 10 is the main body of the skin treatment device. The housing 11 houses the drive unit and control unit of the skin treatment device, providing concealment and protection. The housing 11 is also handheld by the user. The mounting groove 12 can communicate with or be separated from the inner cavity of the housing 11; this is not limited. The end of the connecting buckle 20 does not protrude from the opening of the mounting groove 12 to prevent it from being easily damaged or deformed by impacts, thus improving the protection of the connecting buckle 20.

[0083] The functional output head 30 is a component that outputs therapeutic energy to the skin. The housing 31 houses and protects the functional output component 32. The functional output component 32 outputs therapeutic energy, which can be electrical energy, light energy, or ultrasound. The functional output head 30 can be a phototherapy head that outputs light energy, or an ultrasonic cannon head that outputs focused ultrasound wave energy.

[0084] When the function output head 30 is installed on the body 10, the housing 31 is installed in the assembly slot 12. At this time, the housing 31 can protrude partially from the opening of the assembly slot 12, or it can be completely located within the assembly slot 12. During the installation of the housing 31 in the assembly slot 12, the connecting buckle 20 extends into the housing 31 from the first through hole 311 and engages with the mating buckle 40 adjacent to the first through hole 311 to fix it in place, so as to realize the assembly of the function output head 30 and the body 10.

[0085] Since the mating latch 40 is located inside the first through hole 311, that is, it does not extend out of the first through hole 311, it will not affect the appearance of the function output head 30. Thus, the function output head 30 can be stably placed on the desktop or table with the first through hole 311 facing down, which improves the placement convenience and stability of the function output head 30.

[0086] For example, such as Figure 8and Figure 9 As shown, the housing 31 includes a first end plate 312, and the first through hole 311 is formed in the first end plate 312. The mating fastener 40 includes a first connecting part 41 and a first snap-fit ​​part 42 connected to the end of the first connecting part 41. The projection of the first snap-fit ​​part 42 on the first end plate 312 is at least partially located in the projection area of ​​the first through hole 311. The first snap-fit ​​part 42 has a first snap-fit ​​surface 421 facing away from the first through hole 311. The connecting buckle 20 is snap-fitted with the first snap-fit ​​surface 421.

[0087] The first engaging portion 42 can be either a protrusion protruding from the first connecting portion 41 or a recessed hole or groove in the first connecting portion 41. There is no limitation on this. It should be emphasized that regardless of whether the first engaging portion 42 is a protrusion, a hole, or a groove, it will have a first engaging surface 421 for engaging with the connecting buckle 20. The first engaging portion 42 is connected to the end of the first connecting portion 41 near the first through hole 311. Since the projection of the first engaging portion 42 on the first end plate 312 is located within the projection area of ​​the first through hole 311, the connecting buckle 20 can maintain sufficient distance from the hole wall of the first through hole 311 during the process of engaging with the first engaging surface 421 while extending into the first through hole 311. This ensures that the connecting buckle 20 does not need to contact or rub against the hole wall of the first through hole 311 during its insertion into the first through hole 311, thus guaranteeing a smoother and more efficient insertion process.

[0088] For example, such as Figure 3 and Figure 8 As shown, the first connecting portion 41 extends along the depth direction of the first through hole 311, and the projection of the first connecting portion 41 on the first end plate 312 is located outside the projection area of ​​the first through hole 311. Extending the first connecting portion 41 along the depth direction of the first through hole 311 reduces the torque on the first connecting portion 41 when the connecting buckle 20 and the first engaging portion 42 are engaged, thus ensuring the structural stability of the first connecting portion 41. The fact that the projection of the first connecting portion 41 on the first end plate 312 is located outside the projection area of ​​the first through hole 311 allows the connecting portion to avoid the extension area of ​​the first through hole 311, preventing external structures from accidentally entering the first through hole 311 and causing compression to the first connecting portion 41.

[0089] For example, such as Figures 4 to 7 As shown, the connecting buckle 20 is rotatably mounted on the housing 11 and has a locked position and an unlocked position. When the connecting buckle 20 is in the locked position, it is engaged and fixed with the mating buckle 40. When the connecting buckle 20 is in the unlocked position, it is disengaged from the mating buckle 40.

[0090] By rotating the connecting latch 20, its position can be switched between a locked and unlocked position. When it is necessary to disassemble the function output head 30, the connecting latch 20 can be moved to the unlocked position. At this time, the connecting latch 20 disengages from the mating latch 40, and the function output head 30 is released from its locking relationship with the body 10. The function output head 30 can then be directly removed from the assembly slot 12, and the user can then replace it with a new function output head 30 or one with other care effects. In this way, the detachable locking of the connecting latch 20 and the mating latch 40 is achieved, which also enables the detachable assembly and disassembly of the function output head 30 and the body 10, facilitating the inspection or replacement of the function output head 30.

[0091] Specifically, such as Figures 4 to 7 As shown, the connecting buckle 20 includes a second connecting portion 21, a second engaging portion 22, and a transmission portion 23. The second connecting portion 21 is rotatably mounted on the housing 11. The second engaging portion 22 and the transmission portion 23 are respectively connected to both ends of the second connecting portion 21. The second engaging portion 22 can be a protrusion protruding from the second connecting portion 21, or a hole or groove recessed in the second connecting portion 21. There is no limitation here. It should be emphasized that regardless of whether the second engaging portion 22 is a protrusion, a hole, or a groove, it will have a second engaging surface for engaging with the mating buckle 40.

[0092] In the above embodiment of the fastening part 40 including the first connecting part 41 and the first snap-fit ​​part 42, at least one of the first snap-fit ​​part 42 and the second snap-fit ​​part 22 is in the form of a snap-fit ​​protrusion. For example, the first snap-fit ​​part 42 is a snap-fit ​​protrusion protruding from the end of the first connecting part 41, and the second snap-fit ​​part 22 is also a snap-fit ​​protrusion protruding from the end of the second connecting part 21.

[0093] The second latching part 22 can rotate with the second connecting part 21 to have a locked position and an unlocked position. When the second latching part 22 is in the locked position, it is latched and fixed with the first latching part 42. When the second latching part 22 is in the unlocked position, it is disengaged from the first latching part 42.

[0094] For example, such as Figures 4 to 7 As shown, the housing 11 has an unlocking port, and the body 10 also includes an unlocking button 13 and a transmission component 14. The unlocking button 13 is movably installed in the unlocking port, and the transmission component 14 is movably installed between the transmission part 23 and the unlocking button 13 to transmit the movement of the unlocking button 13 and the transmission part 23 to each other. The second locking part 22 is located on the side of the second connecting part 21 opposite to the transmission component 14. The transmission component 14 is used to push the transmission part 23 to rotate when the unlocking button 13 is pressed, so as to drive the second locking part 22 to rotate from the locked position to the unlocked position.

[0095] For example, the unlock button 13 is directly connected to the connecting buckle 20, or they can be linked together so that when the unlock button 13 is pressed, the connecting buckle 20 moves from the locked position to the unlocked position.

[0096] The unlock button 13 is partially exposed at the unlocking port for the user to press. When the user presses the unlock button 13, the unlock button 13 pushes the transmission component 14, which in turn pushes the transmission part 23. The transmission part 23 connects with the second connecting part 21 to form a lever. When the transmission part 23 rotates away from the unlocking port, the second connecting part 21 rotates towards the unlocking port under the action of the lever, and drives the second locking part 22 to disengage from the first locking part 42. At this time, the connecting buckle 20 disengages from the mating fastener 40, and the function output head 30 can be detached from the body 10. In other words, when the user needs to remove the function output head 30 from the body 10, they only need to press the unlock button 13 to release the locking state of the connecting buckle 20 and the mating fastener 40, which improves the convenience of removing the function output head 30.

[0097] As one implementation method, such as Figures 4 to 7 As shown, the housing 11 is provided with a support portion 15, which is located on the side of the transmission portion 23 away from the transmission member 14. The body 10 also includes an elastic reset member 16, one end of which is connected to the transmission portion 23 and the other end of which is connected to the support portion 15. The elastic reset member 16 is used to push the transmission portion 23 to reset, thereby driving the unlock button 13 to reset, and driving the second locking portion 22 to reset to the locked position.

[0098] The elastic reset element 16 can be a spring or other element that easily undergoes elastic deformation and generates elastic restoring force after being subjected to force. When the unlock button 13 is pressed, it drives the transmission part 23 to rotate via the transmission part 14. During the rotation, the transmission part 23 compresses the elastic reset element 16, causing it to undergo elastic deformation and generate elastic potential energy. After the force applied to the unlock button 13 is removed, the elastic reset element 16 restores its deformation and releases kinetic energy to push the transmission part 23, the transmission part 14, and the unlock button 13 back to their original positions, thereby resetting the second locking part 22 to the locked position. In other words, the elastic reset element 16 allows the second locking part 22 to remain in the locked position in its natural state. The user only needs to press the unlock button 13 when disassembling the function output head 30 to indirectly rotate the connecting clip 20. When installing the function output head 30, there is no need to manually rotate the connecting clip 20, as it will automatically reset to the locked position under the action of the elastic reset element 16.

[0099] Specifically, before the second latching part 22 mates with the first latching surface 421, it must first pass through the first latching part 42. During this process, the second latching part 22 can be temporarily squeezed out of the locking position by the first latching part 42, and the elastic reset member 16 is temporarily compressed. After the second latching part 22 passes through the first latching part 42, the elastic reset member 16 restores its deformation and drives the second latching part 22 to return to the locking position, so that the second latching part 22 mates with the first latching surface 421. The mating process of the connecting buckle 20 and the mating buckle 40 does not require manual intervention from the user, which improves the assembly convenience of the function output head 30 and the body 10.

[0100] For example, such as Figures 4 to 7 As shown, the transmission part 23 has a protruding positioning post 231, and one end of the elastic reset member 16 is sleeved on the positioning post 231. The positioning post 231 can limit the elastic reset member 16, preventing the elastic reset member 16 from being bent and jumping out, thereby improving the installation stability of the elastic reset member 16.

[0101] For example, such as Figures 4 to 7 As shown, the support portion 15 has a limiting groove 151, and the other end of the elastic reset member 16 is disposed in the limiting groove 151. The limiting groove 151 can limit the elastic reset member 16, prevent the elastic reset member 16 from deviating, and improve the positional stability of the elastic reset member 16.

[0102] For example, such as Figure 6 and Figure 7 As shown, the first snap-fit ​​portion 42 has a first guide slope 421 on the side facing the first through hole 311. When the second snap-fit ​​portion 22 passes through the first snap-fit ​​portion 42, the first guide slope 421 is used to allow the second snap-fit ​​portion 22 to slide against the first snap-fit ​​portion 42, so as to squeeze the second snap-fit ​​portion 22 out of the locking position.

[0103] For example, such as Figures 6 to 7 As shown, the second latching part 22 is provided with a second guide slope 221. When the second latching part 22 passes through the first latching part 42, the second guide slope 221 is used to slide against the first latching part 42 so that the first latching part 42 pushes the second latching part 22 out of the locking position.

[0104] Taking the first guide slope 421 as an example, when the first engaging part 42 and the second engaging part 22 just come into contact, the force exerted by the first engaging part 42 on the second engaging part 22 is mainly along the length direction of the second connecting part 21. The force in this direction cannot directly cause the second connecting part 21 to rotate. The first guide slope 421 can make the force exerted by the first engaging part 42 on the second engaging part 22 generate a component force perpendicular to the length direction of the second connecting part 21. This component force can drive the second connecting part 21 to rotate, so that the first engaging part 42 can more easily push the second engaging part 22 out of the locking position temporarily, so that the engaging process of the connecting buckle 20 and the mating buckle 40 is smoother.

[0105] The function of the second guide slope 221 is the same as that of the first guide slope 421. Please refer to the embodiment of the first guide slope 421 for details.

[0106] As one implementation method, such as Figure 2 and Figure 3 As shown, the outer peripheral wall of the housing 31 is provided with a misalignment groove 314, and the inner side wall of the housing 11 at the assembly groove 12 is provided with a positioning rib 111. The misalignment groove 314 and the positioning rib 111 cooperate. One end of the misalignment groove 314 penetrates the end of the housing 31 near the assembly groove 12. When the function output head 30 is installed in the assembly groove 12, the misalignment groove 314 is aligned with the positioning rib 111, and the mating fastener 40 is simultaneously aligned with the positioning buckle. Thus, the misalignment groove 314 and the positioning rib 111 are in place, and the mating fastener 40 and the positioning buckle are also in place simultaneously. Therefore, the user does not need to align the connecting buckle 20 and the mating fastener 40 during the installation of the function output head 30, which simplifies the installation process and improves the installation convenience of the function output head 30.

[0107] For example, such as Figures 8 to 10 As shown, the housing 31 includes a first end plate 312, and the first through hole 311 is formed in the first end plate 312. The function output head 30 also includes a support frame 39 installed in the housing 31. The support frame 39 is located between the function output component 32 and the first end plate 312 to support the functional components in the function output head 30. The mating fastener 40 is connected to the side of the support frame 39 facing the first end plate 312.

[0108] The side of the support frame 39 facing away from the first end plate 312 can support the functional components inside the functional output head 30, while the side of the support facing the first end plate 312 is for connection with the mating fastener 40. By connecting the mating fastener 40 to the support frame 39, after the support frame 39 is installed in the housing 31, the mating fastener 40 can also be fixed in the preset position, thereby simplifying the processing and installation of the mating fastener 40.

[0109] Specifically, such as Figures 8 to 10 As shown, the function output head 30 also includes a circuit board 33 installed in the housing 31. The circuit board 33 is located between the first end plate 312 and the support frame 39. The support frame 39 has a first connecting post 391 protruding on the side facing the first end plate 312. The circuit board 33 is connected to the first connecting post 391. The circuit board 33 has a third through hole 331, which is correspondingly arranged with the first through hole 311.

[0110] Circuit board 33 is electrically connected to function output component 32. The housing 10 also includes a main control board installed inside the housing. When function output head 30 is installed in the mounting slot 12, the main control board is electrically connected to circuit board 33. The main control board can distribute power and transmit control signals to function output component 32 through circuit board 33, so that the user can control function output head 30 through housing 10. The third through hole 331 is used to avoid connecting buckle 20. Connecting buckle 20 passes through the first through hole 311 and the third through hole 331 in sequence and extends into housing 31 to engage and fix with mating buckle 40. Circuit board 33 is connected to the first connecting post 391 so that circuit board 33 is connected to support frame 39, thereby realizing the fixed installation of circuit board 33 inside housing 31.

[0111] In practical applications, the first connecting post 391 is a screw post, and the circuit board 33 is connected to the first connecting post 391 by a first fastener. The first end plate 312 is provided with a first clearance groove 312d corresponding to the first fastener. The circuit board 33 has a first fastening hole, and the first fastener is a screw. The shank of the first fastener passes through the first fastening hole and engages with the screw hole of the first connecting post 391. The head of the first fastener is located on the side of the circuit board 33 facing the first end plate 312. The position of the first clearance groove 312d corresponds to the first fastener to avoid the head of the first fastener, thereby allowing the first end plate 312 to be as close as possible to the circuit board 33.

[0112] The first through hole 311 can be a rectangular hole, and the shape of the third through hole 331 corresponds to that of the first through hole 311.

[0113] For example, such as Figure 9 As shown, the circuit board 33 is provided with a connection pin 332, and the first end plate 312 is provided with a fourth through hole 313 that exposes the connection pin 332. The fourth through hole 313 is located on one side of the first through hole 311.

[0114] The body 10 also includes a conductive pin 172 installed at the bottom of the assembly slot 12. The conductive pin 172 is electrically connected to the main control board. When the function output head 30 is installed in the assembly slot 12, the end of the conductive pin 172 passes through the fourth through hole 313 and abuts against the connection pin 332 to achieve electrical connection between the main control board and the circuit board 33. When the function output head 30 is removed from the assembly slot 12, the connection pin 332 and the conductive pin 172 are released from contact, so that the circuit board 33 and the main control board can be directly disconnected from the electrical connection. The user does not need to manually disconnect the function output head 30 from the body 10 in advance, thereby improving the ease of disassembly of the skin treatment device.

[0115] Specifically, such as Figure 11 and Figure 12 As shown, the housing 31 includes a housing body 301 with one open end. The housing body 301 includes a skin-fitting plate 302 and a surrounding plate 303 disposed around the skin-fitting plate 302. The first end plate 312 is installed at the open end. The first end plate 312 is provided with an abutting protrusion 312a and a mounting buckle 312b. The abutting protrusion 312a abuts against the circuit board 33, and the mounting buckle 312b is engaged with the side of the circuit board 33 opposite to the first end plate 312, so that the first end plate 312 is installed at the open end.

[0116] Mounting clips 312b protrude from the periphery of the first end plate 312 to directly engage with the periphery of the circuit board 33. The circuit board 33 is fixed to the first connecting post 391 on the support frame 39. By securing the first end plate 312 to the circuit board 33 using mounting clips 312b, the first end plate 312 can be fixedly installed at the open end, eliminating the need for connection and fixation to the surrounding plate 303, thus simplifying the installation method. Multiple mounting clips 312b are spaced along the periphery of the first end plate 312, increasing the number of engagement points with the circuit board 33 and improving the connection stability between the first end plate 312 and the circuit board 33.

[0117] An abutting protrusion 312a is provided on the periphery of the first end plate 312. The abutting protrusion 312a may be square in shape. The abutting protrusion 312a abuts against the circuit board 33, creating a certain gap between the first end plate 312 and the circuit board 33, so that there is enough space on the side of the circuit board 33 facing the first end plate 312 for circuit arrangement. There may be multiple abutting protrusions 312a, which are spaced apart along the circumference of the first end plate 312 to increase the contact points with the circuit board 33.

[0118] In practical applications, such as Figure 12As shown, the first end plate 312 is provided with ventilation notches 312c around its perimeter to form a ventilation channel with the inner side of the shell body 301. The functional output head 30 also includes a cooling structure and a heat dissipation structure. The functional output component 32 includes a light source for generating light energy that acts on the skin. The cooling structure is partially exposed on the skin-adhesive plate 302. The heat dissipation structure is used to dissipate heat from the functional output component 32 and includes a second fan and a radiator. The ventilation channel allows external airflow to enter the shell body 301 to dissipate heat from the radiator. The ventilation notches 312c can extend along the periphery of the first end plate 312 to increase the airflow area of ​​the ventilation channel and improve the airflow volume. There can be multiple ventilation notches 312c, which are spaced apart circumferentially along the first end plate 312 to increase the number of ventilation channels and further improve the airflow volume.

[0119] For example, such as Figure 13 As shown, the inner side of the enclosure 303 is provided with a second screw post 303b, and the support frame 39 is installed on the second screw post 303b by a third fastener. The third fastener can be a screw, and the support frame 39 has a second fastening hole. The rod of the third fastener passes through the second fastening hole and engages with the screw hole of the second screw post 303b.

[0120] In one embodiment, the functional output head 30 includes a first functional head, which is a phototherapy head. The phototherapy head also includes a cooling structure and a heat dissipation structure. The functional output component 32 includes a light source for generating light energy that acts on the skin. The cooling structure is partially exposed on the skin-adhesive plate 302. The heat dissipation structure is used to dissipate heat from the functional output component 32. The heat dissipation structure includes a second fan and a radiator. The support frame 39 includes an annular support portion 392 and a plurality of support ribs 393 disposed on the inner side of the annular support portion 392. The plurality of support ribs 393 divide the space inside the annular support portion 392 into at least two ventilation holes 392a. The mating fastener 40 is disposed on one of the support ribs 393 and located on one side of one of the ventilation holes 392a. The second fan is installed on the annular support portion 392 and dissipates heat through the ventilation hole 392a.

[0121] The light source emits therapeutic light and generates heat. The heat dissipation structure is used to dissipate heat from the light source. The heat sink can concentrate and absorb the heat, and then the second fan drives airflow to remove the heat from the heat sink. The air inlet side of the second fan faces the ventilation hole 392a, so that the external airflow is driven into the housing 31 through the ventilation hole 392a to dissipate heat from the heat sink.

[0122] In another embodiment, the functional output head 30 includes a second functional head, which is an ultrasonic cannon head. The ultrasonic cannon head includes an ultrasonic transducer mounted on the support frame 39. The ultrasonic transducer is used to generate focused ultrasonic energy for application to the subcutaneous tissue. Since the ultrasonic transducer does not require airflow for heat dissipation, the support frame 39 does not need to have a ventilation hole 392a.

[0123] Specifically, such as Figure 13 As shown, the inner side of the open end of the shell body 301 is provided with a stop groove 301a, the second screw post 303b extends to the stop groove 301a, and the support frame 39 abuts against the bottom of the stop groove 301a. The stop groove 301a allows the support frame 39 to be pre-positioned before being connected to the second screw post 303b. Before connecting the support frame 39 to the second screw post 303b, the support frame 39 can be positioned on the stop groove 301a, thereby improving the ease of installation of the support member within the shell body 301.

[0124] The present invention also proposes a functional output head 30 for use in a skin treatment device. The functional output head 30 includes a housing 31 and a functional output component 32 installed in the housing 31. One end of the housing 31 is provided with a first through hole 311. The housing 31 is provided with a mating fastener 40 adjacent to the first through hole 311. The mating fastener 40 is located inside the first through hole 311. The first through hole 311 and the mating fastener 40 are configured such that when the housing 31 is installed on the body 10 of the skin treatment device, a connecting buckle 20 on the body 10 extends from the first through hole 311 into the housing 31 and engages with the mating fastener 40 for fixation.

[0125] Since the mating latch 40 is located inside the first through hole 311, that is, it does not extend out of the first through hole 311, it will not affect the appearance of the function output head 30. Thus, the function output head 30 can be stably placed on the desktop or table with the first through hole 311 facing down, which improves the placement convenience and stability of the function output head 30.

[0126] In another embodiment of the invention, such as Figure 14As shown, the skin treatment device includes: a body 10 and a function output head 30. The body 10 includes a housing 11 and an unlocking structure. One end of the housing 11 is provided with a mounting groove 12, and a movable connecting buckle 20 is provided in the mounting groove 12. The housing 11 has a first housing wall 175, and the first housing wall 175 has an unlocking port. The unlocking structure is movably installed on the housing 11. The unlocking structure has a pressing end 132 and an unlocking end 133, and the pressing end 132 is exposed in the unlocking port. The function output head... The functional output head 30 is detachably installed in the assembly slot 12. The functional output head 30 includes a housing 31 and a functional output component 32 installed in the housing 31. The housing 31 is provided with a mating fastener 40, which is used to detachably engage with the connecting buckle 20. The connecting buckle 20 has a locked position and an unlocked position on its moving path. When the connecting buckle 20 is in the locked position, it is engaged and fixed with the mating fastener 40. When the connecting buckle 20 is in the unlocked position, it is disengaged from the mating fastener 40.

[0127] The unlocking end 133 is connected to the connecting buckle 20 so that when the pressing end 132 is pressed, it drives the connecting buckle 20 to move from the locked position to the unlocked position; the pressing end 132 is offset relative to the unlocking end 133 toward the function output head 30 so as to form a gap region 175a corresponding to the unlocking end 133 on the outer wall surface of the first housing wall 175. The gap region 175a is located on the side of the pressing end 132 away from the function output head 30, and the gap region 175a is used to increase the distance between the pressing end 132 and the adjacent key.

[0128] As can be seen from the above embodiment of the connecting buckle 20 and the mating buckle 40, when the pressing end 132 of the unlocking structure is pressed, the force can drive the unlocking end 133 to drive the connecting buckle 20, so that the connecting buckle 20 moves from the locked position to the unlocked position and disengages from the mating buckle 40, thereby releasing the connection between the function output head 30 and the body 10.

[0129] The main body 10 also includes a main control board 171 and a control key 60. The main control board 171 is installed inside the housing 11 and electrically connected to the function output head 30. The control key 60 is installed on the outer wall surface of the first housing wall 175. The control key 60 is used to control the function output component 32 through the main control board 171. The control key 60 is located on the side of the interval region 175a away from the pressing end 132. The user can use the control key 60 to control the operation status of the function output head 30, such as opening, closing, or adjusting the gear.

[0130] A push switch 174 is installed on the main control board 171. The push switch 174 is close to the control key 60. When the control key 60 is pressed, the push switch 174 can be triggered. In order to make the internal structure of the housing 11 more compact, the connecting buckle 20 and the push switch 174 inside the housing 11 are close to each other in the length direction of the housing 11. This results in the unlocking end 133 of the unlocking structure and the push switch 174 being close to each other in the length direction of the housing 11. The position of the push switch 174 and the position of the control key 60 correspond to the position of the housing 11 along the width direction. If the position of the unlocking end 133 and the position of the pressing end 132 also correspond to the position of the pressing end 132 along the width direction of the housing 11, the distance between the pressing end 132 and the control key 60 will be small. When the user presses one of the control key 60 and the pressing end 132, it is easy to accidentally press the other one, which affects the ease of use of the skin treatment device.

[0131] In this embodiment, the pressing end 132 is offset relative to the unlocking end 133 towards the function output head 30, so that a gap region 175a corresponding to the unlocking end 133 is formed on the first housing wall 175. The gap region 175a is located between the pressing end 132 and the control key 60, thereby increasing the distance between the pressing end 132 and the control key 60. That is, the unlocking end 133 and the pressing switch 174 inside the housing 11 are kept close to each other in the length direction of the housing 11, while an additional gap region 175a is added between the pressing end 132 and the control key 60 on the first housing wall 175. In this way, while maintaining the compact internal structure of the body 10, the distance between the pressing end 132 and the control key 60 on the first housing wall 175 can be reasonably increased, thereby avoiding the user accidentally touching one of the pressing end 132 and the adjacent key when pressing one of them, thus improving the user experience and increasing the ease of use of the skin treatment device.

[0132] In conjunction with the above-described embodiments of the unlocking key 13 and the transmission component 14, such as Figure 15 As shown, the unlocking structure includes an unlocking key 13 and a transmission component 14. The unlocking key 13 is movably installed in the unlocking port, and one end of the unlocking key 13 exposed in the unlocking port forms the pressing end 132. The transmission component 14 is movably installed between the unlocking key 13 and the connecting buckle 20. The transmission component 14 has a first transmission end 143 and a second transmission end 144. The first transmission end 143 abuts against the unlocking key 13, and the second transmission end 144 abuts against the connecting buckle 20. The position of the first transmission end 143 corresponds to the pressing end 132, and the position of the second transmission end 144 corresponds to the interval area 175a. The second transmission end 144 forms the unlocking end 133.

[0133] When the unlock button 13 is pressed, the force is transmitted to the transmission component 14, which in turn pushes the transmission component 14 to drive the connecting buckle 20. The pressing end 132 and the unlocking end 133 are respectively located on two mutually abutting components, which can reduce the continuous extension dimension of the unlocking structure, thereby reducing the stress caused by the misalignment of the force position during long-term transmission and preventing the unlocking structure from being easily damaged.

[0134] Specifically, such as Figure 16 As shown, the transmission member 14 forms a limiting groove 142 at the second transmission end 144. The connecting buckle 20 partially passes through the limiting groove 142, and the bottom of the limiting groove 142 abuts against the connecting buckle 20. The groove wall of the limiting groove 142 can limit the connecting buckle 20, so that the connecting buckle 20 and the transmission member 14 can maintain a stable abutment. Therefore, even if the skin treatment device is subjected to impact force, the transmission member 14 and the connecting buckle 20 will not easily disengage. In this way, the connection stability between the unlocking structure and the connecting buckle 20 can be guaranteed.

[0135] In practical applications, such as Figure 16 and Figure 18 As shown, two of the opposite sidewalls of the transmission component 14 are respectively provided with sliding ribs 141. The housing 11 contains two slide rails 152, which extend side-by-side along the movement direction of the unlocking button 13. Each sliding rib 141 is slidably engaged with each slide rail 152. The sliding ribs 141 can slide along the slide rails 152 to improve the stability of the transmission component 14 within the housing 11, ensuring that the transmission component 14 can stably transmit the movement of the unlocking button 13 to the connecting buckle 20, thereby improving the internal structural stability of the housing 10.

[0136] In one specific embodiment, such as Figure 16 and Figure 17 As shown, the transmission component 14 includes a transmission block 145 and a transmission rib 146. The transmission block 145 has a first side 145a facing the unlock button 13 and a second side 145b away from the unlock button 13. The first transmission end 143 is disposed on the first side 145a, and the transmission rib 146 is connected to the second side 145b. The end of the transmission rib 146 extends obliquely in a direction that is simultaneously away from the second side 145b and the function output head 30, so that the position of the end of the transmission rib 146 corresponds to the interval area 175a. The end of the transmission rib 146 forms the second transmission end 144.

[0137] The volume of the transmission rib 146 is smaller than that of the transmission block 145. The transmission block 145 constitutes the main body of the transmission component 14, ensuring the overall structural strength of the transmission component 14. The transmission rib 146 abuts against the connecting buckle 20. The height of the transmission rib 146 decreases from the end closer to the transmission block 145 to the end farther away from the transmission block 145 to prevent the transmission rib 146 from interfering with other structures inside the housing 11. The first side surface 145a abuts against the unlocking key 13, increasing the contact area between the transmission component 14 and the unlocking key 13, thereby improving the stability of the motion transmission process between the unlocking key 13 and the transmission component 14.

[0138] Specifically, such as Figure 16 and Figure 17 As shown, the first side 145a has a first side edge away from the function output head 30, and the second side 145b has a second side edge away from the function output head 30. The second side edge protrudes from the first side edge. The transmission rib 146 is connected to the area of ​​the second side 145b that protrudes from the first side 145a. The side of the transmission rib 146 facing away from the function output head 30 smoothly transitions with the second side edge. The height of the second side 145b is greater than the height of the first side 145a. In the length direction of the housing 11, the second side edge is offset relative to the first side edge in a direction away from the function output head 30, and the transmission rib 146 is connected to the second side edge. The smooth transition between the side of the transmission rib 146 facing away from the function output head 30 and the second side edge makes the overall dimensions of the transmission component 14 more flat and smooth.

[0139] In practical applications, such as Figure 16 and Figure 17 As shown, the height of the transmission block 145 decreases from the second side 145b towards the first side 145a. This allows for reasonable control of the overall size of the transmission block 145, reducing the space occupied by the transmission component 14 within the housing 11. The side of the transmission rib 146 facing the functional output head 30 transitions to the second side 145b at a concave arc surface. This further prevents interference between the transmission component 14 and other structures within the housing 11, thereby further improving the internal structural stability of the body 10.

[0140] In conjunction with the above embodiment of slide rail 152, such as Figure 16 and Figure 18 As shown, the transmission block 145 has a third side and a fourth side facing away from each other. The third side and the fourth side are respectively provided with sliding ribs 141. The housing 11 is provided with two slide rails 152. The two slide rails 152 extend side by side along the movement direction of the unlocking key 13. Each sliding rib 141 is slidably engaged with each slide rail 152.

[0141] In conjunction with the above-described embodiment of the limiting groove 142, such as Figure 16 and Figure 18 As shown, the transmission component 14 further includes two limiting ribs 147, which are respectively connected to the two opposite sidewalls of the transmission rib 146. One end of each limiting rib 147 protrudes from the end of the transmission rib 146. The two limiting ribs 147 and the end of the transmission rib 146 together form a limiting groove 142. The connecting buckle 20 partially passes through the limiting groove 142, and the bottom of the limiting groove 142 abuts against the connecting buckle 20.

[0142] In conjunction with the above-described embodiment of the specific structure of the connecting buckle 20, such as Figures 4 to 7 As shown, the connecting buckle 20 includes a second connecting part 21, a second engaging part 22, and a transmission part 23. The second connecting part 21 is rotatably mounted on the housing 11. The second engaging part 22 and the transmission part 23 are respectively connected to the two ends of the second connecting part 21. The unlocking end 133 abuts against the transmission part 23 to transmit the movement of the pressing end 132 and the transmission part 23 to each other. The second engaging part 22 is located on the side of the second connecting part 21 opposite to the unlocking end 133. The unlocking end 133 is used to push the transmission part 23 to rotate when the pressing end 132 is pressed, so as to drive the second engaging part 22 to rotate from the locked position to the unlocked position.

[0143] In conjunction with the above-described embodiment of the elastic reset member 16, such as Figures 4 to 7 As shown, the housing 11 is provided with a support part 15, which is located on the side of the transmission part 23 away from the unlocking end 133. The body 10 also includes an elastic reset member 16, one end of which is connected to the transmission part 23 and the other end is connected to the support part 15. The elastic reset member 16 is used to drive the unlocking structure to reset by pushing the transmission part 23 to reset, and to drive the second locking part 22 to reset to the locking position.

[0144] Specifically, such as Figure 14As shown, the end of the second connecting portion 21 away from the second latching portion 22 forms a transition end 211 that is rotatably connected to the housing 11. The transition end 211 corresponds to the pressing end 132, and the transmission portion 23 corresponds to the unlocking end 133. When the pressing end 132 is pressed, the unlocking end 133 pushes the transmission portion 23 to rotate around the transition end 211. If the unlocking end 133 and the pressing end 132 are directly opposite each other along the width direction of the housing 11, the unlocking end 133 can only abut against the transition end 211 and cannot make the connecting latch 20 rotate. Therefore, by offsetting the unlocking end 133 relative to the pressing end 132 in a direction away from the function output head 30, it can be ensured that the unlocking end 133 can effectively push the connecting latch 20 to rotate, so as to realize the release of the connection state between the housing 10 and the function output head 30 by the unlocking structure.

[0145] For example, such as Figure 19 As shown, the unlocking structure also includes an elastic connecting arm 153, which is bent. One end of the elastic connecting arm 153 is connected to the unlocking button 13 and the other end is connected to the first shell wall 175. Thus, each time the unlocking button 13 is pressed, the elastic connecting arm 153 will elastically deform. After the pressing force is removed, the elastic connecting arm 153 can return to its original shape, thereby keeping the unlocking button 13 in contact with the unlocking port.

[0146] Specifically, such as Figure 19 As shown, the portion of the unlock button 13 within the housing 11 has a protruding limiting skirt 131. The limiting skirt 131 abuts against the periphery of the unlocking port to prevent the unlock button 13 from disengaging outward from the unlocking port. The limiting skirt 131 extends along the peripheral wall of the portion of the unlock button 13 within the housing 11. After the unlock button 13 is reset, the limiting skirt 131 abuts against the periphery of the unlocking port to achieve a relatively static contact between the unlock button 13 and the housing 11, preventing the unlock button 13 from completely disengaging from the unlocking port.

[0147] For example, such as Figure 20 As shown, the housing 11 has a grip area 11a and an assembly area 11b adjacent to each other along its length. The function output head 30 is mounted on the end of the assembly area 11b away from the grip area 11a. The control key 60 and the unlocking end 133 are exposed on the outer wall of the assembly area 11b. The grip area 11a is available for the user to hold, and the assembly area 11b is located between the grip area 11a and the function output head 30. The width of the assembly area 11b can be greater than the width of the grip area 11a, thereby preventing the user's hand from easily gripping the assembly area 11b and accidentally touching the unlocking end 133 or the control key 60.

[0148] Specifically, such as Figure 20As shown, the housing 11 also includes a second housing wall 176 opposite to the first housing wall 175. The second housing wall 176 is provided with one of a display structure, a decorative structure, or a light-emitting structure, which corresponds to the positions of the control key 60 and the unlocking end 133. The display structure can be used to display the working status of the skin treatment device, such as remaining battery power or current mode. The decorative structure and the light-emitting structure can serve as decoration or indicator lights for the skin treatment device. By placing the unlocking end 133 and the control key 60 in the assembly area 11b of the first housing wall 175, and the display structure, decorative structure, or light-emitting structure in the assembly area 11b of the second housing wall 176, the key layout and the distribution of the display function area, light-emitting function area, or decorative area of ​​the skin treatment device can be made more rational.

[0149] In yet another embodiment of the invention, as Figures 21 to 23 As shown, the skin treatment device includes a body 10 and a function output head 30. The body 10 includes a housing 11, an electronic control unit 17, and control buttons 60. The housing 11 has a mounting cavity and a button hole 118 communicating with the mounting cavity. The housing 11 has a protruding elastic reset arm 120 adjacent to the button hole 118. The end of the elastic reset arm 120 extends from the fixed end of the elastic reset arm 120 in a direction away from the button hole 118. The electronic control unit 17 is installed in the mounting cavity. The electronic control unit 17 includes a main control board 171 and a push switch 174 electrically connected to the main control board 171. 174 is opposite to the button hole 118; the control key 60 is pressable and mounted on the outer surface of the housing 11. The control key 60 includes a pressing plate 61 and a trigger part 62 connected to the inner side of the pressing plate 61. The pressing plate 61 covers the button hole 118 and abuts against the end of the elastic reset arm 120. The trigger part 62 extends into the button hole 118 and abuts against the press switch 174; the elastic reset arm 120 is used to reset the control key 60 in a direction away from the outer surface of the housing 11; the function output head 30 is mounted on one end of the housing 11 and electrically connected to the main control board 171.

[0150] In this embodiment, the pressing plate 61 can be pressed by the user, and the triggering part 62 can transmit the pressing force to the pressing switch 174 to activate the control circuit of the main control board 171, thereby controlling the operation of the function output head 30. The housing 11 has a first housing wall 175, and the button hole 118 is opened in the first housing wall 175. The extension direction of the elastic reset arm 120 is parallel to the first housing wall 175 or forms an angle of no more than 30° with it. The elastic reset arm 120 may protrude entirely from the first housing wall 175, or only the end may protrude from the first housing wall 175; there is no limitation here.

[0151] When the control key 60 is pressed, the pressing plate 61 pushes the end of the elastic reset arm 120 to bend and deform towards the inside of the mounting cavity, at which time the elastic reset arm 120 undergoes elastic deformation; after the pressing force is removed, the elastic reset arm 120 returns to its deformation, and the inner end of the elastic reset arm 120 pushes the pressing plate 61 to return to the initial position outward. Since the control key 60 is plate-shaped, the mating area with the housing 11 can be increased, thereby improving the installation stability of the control key 60. In addition, the outer surface of the control key 60 can provide users with more pressing area to improve the convenience of the pressing process, and the elastic reset arm 120 can provide users with more obvious tactile feedback to improve the user experience. The outer surface of the control key 60 can also remain flush with the overall outer surface of the housing 11 to improve the overall appearance of the body 10.

[0152] Specifically, the area of ​​the pressure plate 61 can be set from 4 square centimeters to 6 square centimeters, for example, 4 square centimeters, 5 square centimeters, or 6 square centimeters. If only the central area of ​​the pressure plate 61 is abutted against the housing 11 by a spring to achieve reset, when the pressing force is applied to the edge of the pressure plate 61, the spring will have difficulty providing a clear tactile feedback, and the pressing force will be easily deflected, making it difficult to effectively transmit to the press switch 174, causing the user to not be able to clearly perceive whether the press is effective. However, by using the elastic reset arm 120 to elastically reset the pressure plate 61, and by reasonably controlling the distance between the end of the elastic reset arm 120 and the button hole 118, the pressing force, whether applied to the central or edge area of ​​the pressure plate 61, will not be easily deflected, can be effectively transmitted to the press switch 174, and can provide the user with a sufficiently clear tactile feedback.

[0153] In practical applications, the distance between the button hole 118 and the end of the elastic reset arm 120 is 5mm to 15mm, for example, it can be 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm or 15mm. This ensures that the pressing force applied to the center area of ​​the pressing plate 61 is transmitted to the elastic reset arm 120, allowing the elastic reset arm 120 to provide a sufficiently clear reset feel through elastic deformation. It also ensures that the pressing force applied to the edge area of ​​the pressing plate 61 overcomes the resistance of the elastic reset arm 120 and is transmitted to the press switch 174, effectively triggering the press switch 174.

[0154] The number of elastic reset arms 120 can be one, two or more.

[0155] Specifically, such as Figure 22As shown, there are at least two elastic reset arms 120, distributed on at least two sides of the button hole 118, with the pressing plate 61 abutting against the end of each elastic reset arm 120. Distributing at least two elastic reset arms 120 on both sides of the button hole 118 increases the contact area between the pressing plate 61 and the elastic reset arms 120, thereby making the force on the pressing plate 61 more uniform during reset and providing a more uniform tactile feedback to the user during pressing, thus improving the effectiveness of the skin treatment device.

[0156] In practical applications, such as Figure 22 As shown, there are four elastic reset arms 120. These four elastic reset arms 120 are divided into two groups distributed on both sides of the button hole 118. The fixed ends of the two elastic reset arms 120 within the same group are close to each other, while their ends extend in opposite directions, so that the ends of the four elastic reset arms 120 are distributed around the button hole 118. This allows the ends of the four elastic reset arms 120 to more evenly abut against the four positions of the pressing plate 61, dispersing the reset force on the pressing plate 61 and thus making the movement process of the pressing plate 61 during pressing and reset more stable.

[0157] As one implementation method, such as Figure 22 As shown, the end of the elastic reset arm 120 has an abutment protrusion 121 protruding towards the pressing plate 61, and the pressing plate 61 abuts against the abutment protrusion 121. The abutment protrusion 121 ensures that the end of the elastic reset arm 120 effectively abuts against the pressing plate 61, so that when the pressing plate 61 is pressed, the force can be transmitted to the elastic reset arm 120 in a timely manner through the abutment protrusion 121, causing it to elastically deform. After the pressing force is removed, the stroke generated by the elastic reset arm 120 restoring its deformation can effectively reset the pressing plate 61 to its initial position.

[0158] The elastic reset arm 120 can be straight or irregularly shaped.

[0159] Specifically, such as Figure 22As shown, the elastic reset arm 120 includes a first cantilever segment 122 and a second cantilever segment 123. The first cantilever segment 122 connects the second cantilever segment 123 to the housing 11. The outer surface of the second cantilever segment 123 protrudes from the outer surface of the first cantilever segment 122. The end of the second cantilever segment 123 away from the first cantilever segment 122 forms the end of the elastic reset arm 120. The connection between the first cantilever segment 122 and the second cantilever segment 123 is stepped or sloped, thus making the elastic reset arm 120 as a whole folded arm. This allows the elastic force generated after the elastic reset arm 120 undergoes elastic deformation to be greater, effectively overcoming the gravity and friction force on the pressing plate 61 and improving the reset effect of the pressing plate 61. In conjunction with the above embodiment of the abutting protrusion 121, the abutting protrusion 121, the second cantilever section 123 and the first cantilever section 122 can make the elastic reset arm 120 form a stepped structure. Thus, when the pressing plate 61 presses the abutting protrusion 121, the elastic reset arm 120 can be subjected to force in stages. While ensuring that the elastic reset arm 120 generates sufficient elastic reset force, it also avoids damage to the elastic reset arm 120 due to excessive instantaneous force.

[0160] As one implementation method, such as Figure 22 As shown, the housing 11 has a through groove 119 adjacent to the button hole 118, and the fixed end of the elastic reset arm 120 is connected to the groove wall of the through groove 119. The through groove 119 can provide sufficient deformation space for the elastic reset arm 120 to improve the space utilization of the mounting cavity; in addition, when the pressing plate 61 receives a large impact force and squeezes the elastic reset arm 120, after the elastic reset arm 120 is pressed into the through groove 119, the force of the pressing plate 61 can be dispersed to the housing wall of the housing 11 to protect the elastic reset arm 120.

[0161] In the embodiment with the four elastic reset arms 120 described above, there are four through slots 119. These four through slots 119 are distributed in two groups on both sides of the button hole 118. Each through slot 119 has a protruding elastic reset arm 120 on its groove wall. The fixed ends of the two elastic reset arms 120 in each group of through slots 119 are close to each other, while their ends extend in opposite directions. This allows the ends of the four elastic reset arms 120 to be more evenly distributed and abut against the four positions of the pressing plate 61, dispersing the reset force on the pressing plate 61 and making the movement of the pressing plate 61 more stable during pressing and reset. When the pressing plate 61 receives a large impact force and squeezes the elastic reset arm 120, after the elastic reset arm 120 is pressed into the through slot 119, the force of the pressing plate 61 can be dispersed onto the shell wall of the housing 11, thus protecting the elastic reset arm 120.

[0162] The elastic reset arm 120 and the housing 11 can be machined separately and then connected together, or they can be machined as a single piece.

[0163] In practical applications, the elastic reset arm 120 is integrally formed with the groove wall of the through groove 119. This simplifies the processing of the elastic reset arm 120 and eliminates the connection process with the housing 11, thereby improving the processing efficiency and structural strength of the elastic reset arm 120.

[0164] As one implementation method, such as Figure 23 As shown, the pressing plate 61 is arc-shaped, with its concave arc side facing the outer surface of the housing 11. The trigger part 62 is connected to the middle region of the pressing plate 61, and the area between the straight side of the pressing plate 61 and the trigger part 62 abuts against the end of the elastic arm. The pressing plate 61 has two parallel straight sides at both ends along the arc-shaped extension direction. The distance between the pressing plate 61 and the surface of the housing 11 gradually increases from the two straight sides towards the center. When the pressing plate 61 moves to the point that the trigger part 62 touches the pressing switch 174, the pressing plate 61 also causes the elastic reset arm 120 to deform with sufficient stroke, thereby enabling the elastic reset arm 120 to generate sufficient elastic force to drive the pressing plate 61 to reset.

[0165] Specifically, such as Figure 23 As shown, the pressing plate 61 has a limiting buckle 63 protruding from its concave arc side. The limiting buckle 63 is close to the straight side of the pressing plate 61, and the end of the limiting buckle 63 has a limiting engagement surface facing the pressing plate 61. The housing 11 has a limiting hole 124 corresponding to the limiting buckle 63. The limiting buckle 63 extends into the mounting cavity through the limiting hole 124. The limiting engagement surface engages with the inner wall surface of the housing 11. The distance between the limiting engagement surface and the pressing plate 61 is greater than the depth of the limiting hole 124, so that an movable gap is formed between the outer surface of the housing 11 and the pressing plate 61.

[0166] The movable gap allows the pressing plate 61 to move towards the surface of the housing 11 after being pressed. The width of the movable gap is the maximum travel of the pressing plate 61. The limiting buckle 63 engages with the inner wall of the housing 11, which can limit the pressing plate 61 and prevent it from detaching from the housing 11. At the same time, this engaging engagement method can also support the pressing plate 61 to move a preset distance after being pressed, so that the trigger part 62 can effectively actuate the pressing switch 174. The pressing plate 61 can be provided with a limiting buckle 63 on both straight sides. The number of limiting buckles 63 can be one, two or more, and at least two limiting buckles 63 can be arranged at intervals along the straight sides of the pressing plate 61.

[0167] As one implementation method, such as Figure 23As shown, the pressing plate 61 is provided with a guide post 64, and the housing 11 is provided with a guide hole 125 adapted to the guide post 64. The guide post 64 and the guide hole 125 are slidably engaged. In this way, the movement of the pressing plate 61 towards or away from the surface of the housing 11 can be guided, so as to improve the movement stability of the control key 60 during the pressing and resetting process.

[0168] Specifically, such as Figure 23 As shown, the body 10 also includes a reset elastic element 65, which is arranged around the trigger portion 62. One end of the reset elastic element 65 abuts against the outer wall of the housing 11, and the other end abuts against the pressing plate 61. The reset elastic element 65 can be a spring. When the pressing plate 61 is pressed and approaches the surface of the housing 11, it can compress the reset elastic element 65 to generate an elastic force. After the pressing force is removed, the reset elastic element 65 restores its deformation and pushes the pressing plate 61 back to its original position through the elastic force. In this way, the reset elastic element 65 can assist the elastic reset arm 120 in resetting the pressing plate 61, thereby improving the reset effect of the pressing plate 61.

[0169] In yet another embodiment of the invention, such as Figure 24 As shown, the skin treatment device includes: a body 10, the body 10 including a housing 11, the housing 11 including a central support 50, a first housing portion 116 and a second housing portion 117, the length direction of the central support 50 being consistent with the length direction of the housing 11, the central support 50 including a central partition plate 51 and a mounting base 52, the mounting base 52 being connected to one end of the central partition plate 51 along its length direction, the first housing portion 116 and the second housing portion 117 being located on both sides of the central partition plate 51 respectively, the first housing portion 116 and the second housing portion 117 being connected to both sides of the central support 50 respectively, a first cavity 112 being formed between the first housing portion 116 and the central partition plate 51, and a second cavity 113 being formed between the second housing portion 117 and the central partition plate 51; an assembly groove 12 being formed on the side of the mounting base 52 away from the central partition plate 51; and a function output head 30, the function output head 30 being detachably mounted in the assembly groove 12.

[0170] In this embodiment, the housing 11 extends along one direction to form its length direction. The partition 51, as part of the housing 11, has its length direction aligned with that of the housing 11. The partition 51 allows for the integrated installation of functional components of the body 10. These functional components include a main control board 171 and electronic components mounted on the main control board 171. Of course, the functional components also include other parts not mounted on the main control board 171. During the assembly of the body 10, the functional components and the partition 51 are not inserted into the housing 11 from one end, but are directly within the housing 11 during the splicing of the first housing portion 116, the partition bracket 50, and the second housing portion 117. This simplifies the assembly process of the housing 11 and the functional components, avoids the influence of the internal space limitations of the housing 11 on the installation process of the functional components, thereby simplifying the assembly process of the skin treatment device and improving assembly efficiency. Furthermore, since the functional components are not directly connected to the first housing portion 116 and the second housing portion 117, when the first housing portion 116 and the second housing portion 117 are subjected to external impact, the impact force is first transmitted to the central partition bracket 50, and not directly to the functional components on the central partition plate 51. The impact force is buffered and weakened to a certain extent during the transmission from the central partition bracket 50 to the functional components, thereby reducing the impact on the functional components and improving their structural stability. The central partition plate 51 also divides the internal space of the housing 11 into the first cavity 112 and the second cavity 113, allowing the functional components to be more rationally distributed and installed within the housing 11, thus improving the effective utilization rate of the internal space of the housing 11.

[0171] For example, such as Figure 24 and Figure 25 As shown, the partition bracket 50 further includes a surrounding plate 53 disposed along the periphery of the partition plate 51. The partition plate 51 is connected to the inner side of the surrounding plate 53, such that the surrounding plate 53 includes a first surrounding portion 531 and a second surrounding portion 532 connected along the thickness direction of the partition plate 51. The first shell portion 116 is connected to the first surrounding portion 531, such that a first cavity 112 is formed between the first shell portion 116 and the partition plate 51. The second shell portion 117 is connected to the second surrounding portion 532, such that a second cavity 113 is formed between the second shell portion 117 and the partition plate 51.

[0172] The inner circumferential surface of the enclosure plate 53 is connected to each side of the partition plate 51, and the outer circumferential wall of the enclosure plate 53 serves as part of the outer wall of the housing 11. Specifically, the first enclosure portion 531 protrudes from one surface of the partition plate 51, and the second enclosure portion 532 protrudes from the other surface of the partition plate 51. The first enclosure portion 531 and the second enclosure portion 532 allow the partition bracket 50 to provide a sufficiently large structural area to be spliced ​​with the first shell portion 116 and the second shell portion 117 respectively, thereby improving the connection stability between the partition bracket 50 and the first shell portion 116 and the second shell portion 117.

[0173] Specifically, such as Figure 25 As shown, the partition plate 51 has a first through hole 513, and the inner side of the second shell portion 117 has a first fixing post 181 protruding from it. The end of the first fixing post 181 has a first fixing hole 182 corresponding to the through hole. The first through hole 513 and the first fixing hole 182 are connected by a fastener. The first fixing hole 182 can be a screw hole, and the fastener is a screw. After passing through the first through hole 513, the fastener engages with the first fixing hole 182 via a thread, thereby simplifying the connection process between the partition plate 51 and the second shell portion 117. The first fixing post 181 can provide sufficient forming depth for the first fixing hole 182 to improve the connection strength between the partition plate 51 and the second shell portion 117. The first fixing post 181 can also improve the structural strength at the connection between the second shell portion 117 and the partition plate 51 to ensure the structural stability of the second shell portion 117.

[0174] Specifically, such as Figure 28 As shown, the second shell portion 117 includes a second side plate 117a disposed opposite to the central partition 51, and a second enclosing plate 117b disposed around the periphery of the second side plate 117a. The bottom of the first fixing post 181 is connected to the inner side surface of the second side plate 117a, and the peripheral side surface of the first fixing post 181 is connected to the inner side surface of the second enclosing plate 117b. The second side plate 117a is an arc-shaped side plate, and the second enclosing plate 117b is spliced ​​with the second enclosing portion 532. The first fixing post 181 is connected to both the second side plate 117a and the second enclosing plate 117b, which increases the connection area between the first fixing post 181 and the second shell portion 117, so that the force on the first fixing post 181 can be distributed to the second shell portion 117, preventing the first fixing post 181 from being easily damaged or deformed due to concentrated force.

[0175] In practical applications, such as Figure 24 and Figure 28As shown, a first reinforcing boss 513a is provided at the first through hole 513, and the first reinforcing boss 513a passes through the first through hole 513. The first reinforcing boss 513a can strengthen the structural strength of the partition plate 51 at the first through hole 513, preventing the partition plate 51 from easily deforming or being damaged after being subjected to the force of fasteners, thereby improving the structural stability of the partition plate 51. The first through hole 513 is located close to the second enclosure portion 532, so the first fixing post 181 connected to the first through hole 513 will also be close to the second enclosure portion 532, thereby reducing the occupation of the central space area of ​​the second cavity 113 by the first fixing post 181, thereby improving the effective utilization rate of the space of the second cavity 113.

[0176] The first through hole 513 and the first fixing hole 182 are distributed in multiple pairs in the circumferential direction of the partition plate 51. Each first fixing hole 182 is fixed to each first through hole 513 by fasteners, thereby increasing the connection position between the partition plate 51 and the second shell 117 and improving the connection stability between the partition plate 51 and the second shell 117.

[0177] For example, such as Figure 27 As shown, the first shell portion 116 is provided with a mounting buckle 183, and the inner sidewall of the first enclosure portion 531 and / or the middle partition plate 51 are provided with a mounting protrusion 533. The mounting buckle 183 is engaged and fixed with the mounting protrusion 533. The mounting buckle 183 protrudes from the inner wall surface of the first shell portion 116 so that after the first shell portion 116 and the first enclosure portion 531 are spliced, the mounting buckle 183 and the mounting protrusion 533 can be hidden in the first cavity 112. The fixed connection between the first shell portion 116 and the middle partition bracket 50 is achieved by engaging and fixing the mounting buckle 183 and the mounting protrusion 533, which simplifies the connection method and improves the convenience of connection.

[0178] Multiple pairs of mounting buckles 183 and mounting protrusions 533 are distributed at intervals along the circumference of the partition plate 51. At least two mounting buckles 183 are distributed on each of the two long sides of the first shell portion 116. The number and position of the mounting protrusions 533 on the first enclosure portion 531 correspond to the mounting buckles 183. Each mounting buckle 183 is engaged and fixed with each mounting protrusion 533, which can improve the connection stability between the first shell portion 116 and the partition bracket 50.

[0179] Specifically, such as Figure 28As shown, the first shell portion 116 includes a first side plate 116a disposed opposite to the central partition 51, and a first enclosing plate 116b disposed around the periphery of the first side plate 116a. The bottom of the mounting buckle 183 is connected to the inner side surface of the first side plate 116a, and the peripheral side surface of the mounting buckle 183 is connected to the inner side surface of the first enclosing plate 116b. The first side plate 116a is an arc-shaped side plate, and the first enclosing plate 116b is spliced ​​with the first enclosing portion 531. The mounting buckle 183 is connected to both the first side plate 116a and the first enclosing plate 116b, which can increase the connection area between the mounting buckle 183 and the first shell portion 116, so that the force on the mounting buckle 183 can be distributed to the first shell portion 116, preventing the mounting buckle 183 from being easily damaged or deformed due to concentrated force.

[0180] In practical applications, such as Figure 24 and Figure 29 As shown, the mounting bracket protrusion 533 is provided on the inner sidewall of the first enclosure portion 531, and the partition plate 51 is provided with a corresponding through hole 533a at the position corresponding to the mounting bracket protrusion 533.

[0181] The corresponding through hole 533a makes the portion of the first enclosure 531 near the corresponding through hole 533a easier to deform. Therefore, during the process of the mounting buckle 183 pressing the mounting protrusion 533, the first enclosure 531 can easily deform to allow the mounting protrusion 533 to be displaced and engage with the mounting buckle 183, thus reducing the difficulty of engaging the mounting buckle 183 and the mounting protrusion 533. For the portion of the first enclosure 531 with a smaller width, that is, the portion with a smaller dimension along the thickness direction of the partition plate 51, the corresponding through hole 533a can also be used to avoid the mounting buckle 183, preventing the end of the mounting buckle 183 from abutting against the partition plate 51 and obstructing each other, thereby improving the stability of the fit between the partition bracket 50 and the first shell portion 116.

[0182] For example, such as Figure 26 As shown, the free end face of the first enclosure portion 531 is provided with a first receiving notch, and the free end face of the first enclosure plate 116b of the first shell portion 116 is provided with a first limiting protrusion 184, which is limited within the first receiving notch. In this way, the first enclosure plate 116b and the first enclosure portion 531 are mutually limited by the first limiting protrusion 184 and the first receiving notch, thereby improving the stability of the splicing state of the first enclosure plate 116b and the first enclosure portion 531.

[0183] Specifically, such as Figure 26As shown, the free end face of the second enclosure portion 532 is provided with a second receiving notch, and the free end face of the second enclosure plate 117b of the second shell portion 117 is provided with a second limiting protrusion 185, which is limited within the second receiving notch. In this way, the second enclosure plate 117b and the second enclosure portion 532 are mutually limited by the second limiting protrusion 185 and the second receiving notch, thereby improving the stability of the splicing state of the second enclosure plate 117b and the second enclosure portion 532.

[0184] For example, such as Figure 26 As shown, the inner sidewall of the first enclosure portion 531 is provided with a first reinforcing rib 534. One end of the first reinforcing rib 534 is connected to the middle partition plate 51, and the other end forms a first positioning groove. The first shell portion 116 is provided with a first limiting protrusion 184, which is inserted into the first positioning groove. The first reinforcing rib 534 can strengthen the structural strength of the first enclosure portion 531 and prevent the first enclosure portion 531 from being easily damaged when subjected to force. The first positioning groove can be formed by the first reinforcing rib 534 itself, or it can be formed by the first reinforcing rib 534 and the inner peripheral wall of the first enclosure portion 531.

[0185] In conjunction with the above embodiments of the first side plate 116a and the first enclosure plate 116b, the first limiting protrusion 184 is provided on the end face of the free end of the first enclosure plate 116b; the end face of the free end of the first enclosure portion 531 is provided with a first receiving notch, and the first limiting protrusion 184 is limited within the first receiving notch; the other end of the first reinforcing rib 534 and the first receiving notch form the first positioning groove.

[0186] Specifically, such as Figure 24 and Figure 29 As shown, the first reinforcing rib 534 and the first positioning groove are distributed in multiple intervals in the circumferential direction of the partition plate 51, thereby increasing the mutual positioning and cooperation positions of the first shell part 116 and the first enclosure part 531, so as to improve the cooperation stability of the first shell part 116 and the first enclosure part 531.

[0187] In practical applications, such as Figure 29 As shown, the first limiting protrusion 184 is an annular structure, which can improve the structural strength of the first limiting protrusion 184 and improve the fit stability between the first limiting protrusion 184 and the first positioning groove.

[0188] For example, such as Figure 26As shown, the inner sidewall of the second enclosure 532 is provided with a second reinforcing rib 535. One end of the second reinforcing rib 535 is connected to the middle partition 51, and the other end forms a second positioning groove. The second shell portion 117 is provided with a second limiting protrusion 185, which is inserted into the second positioning groove. The second reinforcing rib 535 can enhance the structural strength of the second enclosure 532 and prevent the second enclosure 532 from being easily damaged under stress. The second positioning groove can be formed by the second reinforcing rib 535 itself, or it can be formed by the second reinforcing rib 535 and the inner peripheral wall of the second enclosure 532.

[0189] In conjunction with the above-described embodiments of the second side plate 117a and the second enclosure plate 117b, the second limiting protrusion 185 is provided on the end face of the free end of the second enclosure plate 117b; the end face of the free end of the second enclosure portion 532 is provided with a second receiving notch, and the second limiting protrusion 185 is limited within the second receiving notch; the other end of the second reinforcing rib 535 and the second receiving notch form the second positioning groove.

[0190] Specifically, such as Figure 29 As shown, the second reinforcing rib 535 and the second positioning groove are distributed in multiple intervals in the circumferential direction of the partition plate 51, thereby increasing the position of mutual positioning and cooperation between the second shell portion 117 and the second enclosure portion 532, so as to improve the cooperation stability between the second shell portion 117 and the second enclosure portion 532.

[0191] In practical applications, the second limiting protrusion 185 is a ring structure, which can improve the structural strength of the second limiting protrusion 185 and improve the stability of the fit between the second limiting protrusion 185 and the second positioning groove.

[0192] For example, such as Figure 28 As shown, the width of the enclosure plate 53 is unequal in the circumferential direction of the partition plate 51. The enclosure plate 53 is distributed at wider and narrower points along the length of the housing 11. The enclosure plate 53 protrudes towards the periphery of the partition plate 51 at the narrower point. The first shell portion 116 and the second shell portion 117 adapt to the partition bracket 50 so that the housing 11 forms a gripping area at the wider point of the enclosure plate 53. The width direction of the enclosure plate 53 is the same as the thickness direction of the partition plate 51. The width direction of the enclosure plate 53 is perpendicular to the width direction of the partition bracket 50. The width of the partition bracket 50 at the narrower point is greater than the width at the wider point. By forming a gripping area at the wider point of the enclosure plate 53, the thickness of the gripping area can be more suitable for the size of the user's palm, thereby ensuring that the user can stably grip the housing 11 when using the skin treatment device.

[0193] Specifically, such as Figure 28As shown, the narrower portion includes a first narrower portion located near the mounting base 52; the free end of the first enclosing portion 531 forms a first groove 531a at the first narrower portion, the depth of the first groove 531a decreasing from the middle towards both sides, and the first shell portion 116 includes a first lug portion 116c disposed within the first groove 531a. The first lug portion 116c cooperates with the first groove 531a, allowing the first shell portion 116 and the first enclosing portion 531 to mutually limit each other in the length direction of the housing 11, thereby improving the connection stability between the first shell portion 116 and the central partition bracket 50.

[0194] In practical applications, such as Figure 28 As shown, the narrower portion includes a second narrower portion located at the end of the housing 11 away from the mounting base 52; the free end of the first enclosure portion 531 forms a third groove 531b at the second narrower portion, the depth of the third groove 531b decreasing from the middle towards both sides, and the first housing portion 116 includes a third lug 116d disposed within the third groove 531b. The third lug 116d cooperates with the third groove 531b, allowing the first housing portion 116 and the first enclosure portion 531 to mutually limit each other in the length direction of the housing 11, thereby improving the connection stability between the first housing portion 116 and the central partition bracket 50.

[0195] Specifically, such as Figure 28 As shown, the free end of the second enclosure portion 532 forms a second groove 532a at the first narrower portion. The depth of the second groove 532a decreases from the middle towards both sides. The second shell portion 117 includes a second lug portion 117c disposed within the second groove 532a. The second lug portion 117c engages with the second groove 532a, allowing the second shell portion 117 and the second enclosure portion 532 to mutually limit each other in the length direction of the housing 11, thereby improving the connection stability between the second shell portion 117 and the central partition bracket 50.

[0196] In practical applications, such as Figure 28 As shown, the free end of the second enclosure portion 532 forms a fourth groove 532b at the second narrower portion. The depth of the fourth groove 532b decreases from the middle towards both sides. The second shell portion 117 includes a fourth lug 117d disposed within the fourth groove 532b. The fourth lug 117d cooperates with the fourth groove 532b to limit the second shell portion 117 and the second enclosure portion 532 to each other in the length direction of the housing 11, thereby improving the connection stability between the second shell portion 117 and the central partition bracket 50.

[0197] For example, such as Figure 28As shown, the narrower portion includes a first narrower portion and a second narrower portion, and the wider portion includes a first wider portion located between the first narrower portion and the second narrower portion. The gripping area is located in the first wider portion. By placing the gripping area in the first wider portion, the contact area between the hand and the enclosure plate 53 when gripping the housing 11 can be increased, thereby improving grip stability.

[0198] Specifically, such as Figure 28 As shown, the first groove 531a is approximately triangular in shape, the first lug 116c is approximately triangular in shape, the second groove 532a is approximately triangular in shape, and the second lug 117c is approximately triangular in shape, so that the housing 11 forms a first gripping limit portion that is approximately triangular in shape at the first narrower part.

[0199] In practical applications, such as Figure 28 As shown, the third lug 116d is generally triangular in shape, the fourth groove 532b is generally triangular in shape, and the fourth lug 117d is generally triangular in shape, so that the housing 11 forms a second gripping limit portion that is generally triangular in shape at the second narrower part.

[0200] For example, such as Figure 29 As shown, one end of the partition 51 has a shaped notch, and the mounting base 52 is connected within the shaped notch. The partition 51 includes two end partition portions 51a respectively connected to both sides of the mounting base 52. The enclosing plate 53 includes a head enclosing plate portion 53a connected to the head partition portions 51a and the mounting base 52. The distance between the two head enclosing plate portions 53a gradually increases in the direction from the end with the shaped notch to the other end. The head enclosing plate portion 53a forms part of a first narrower section.

[0201] In the embodiment described above, the clearance notch 116 is formed at the connection between the head enclosure plate portion 53a and the mounting base 52. The functional output head 30 can be an ultrasonic cannon head or a phototherapy head. The phototherapy head is provided with a heat dissipation vent, which is exposed through the clearance notch 116 on the housing 11.

[0202] Specifically, the head enclosure plate portion 53a is generally triangular in shape.

[0203] In conjunction with the above-described embodiments of the anti-mistake groove 314 and the positioning rib 111, the mounting base 52 includes a base plate 521 and a mounting enclosure plate 522 disposed around the base plate 521. The bottom is connected to the bottom of the forming notch, and the head partition portion 51a is connected to the mounting enclosure plate 522. The mounting enclosure plate 522 and the base plate 521 form an assembly groove 12. The mounting groove 12 has a positioning rib 111 protruding from its peripheral side, and the functional output head 30 has an anti-mistake groove 314 on its peripheral side.

[0204] In conjunction with the above-described embodiment of circuit board 33 and conductive pin 172, such as Figure 30 As shown, the bottom of the assembly slot 12 is provided with an exposure port 121. The body 10 also includes a circuit board 172a and a conductive pin 172 disposed on the circuit board 172a. The circuit board 172a is installed on the inner side of the base plate 521. The conductive pin 172 is exposed through the exposure port 121. The function output head 30 includes a circuit board 33. The circuit board 33 is provided with a connection pin 332 that abuts and conducts with the conductive pin 172.

[0205] For example, such as Figure 24 and Figure 25 As shown, the body 10 also includes a main control board 171, which is installed inside the first cavity 112. The main control board 171 is installed on the side of the partition plate 51 facing the first cavity 112. A second fixing post 514 protrudes from the side of the partition plate 51 facing the first cavity 112, and a second fixing hole 515 protrudes from the end of the second fixing post 514. The main control board 171 has a second through hole 173, and the second through hole 173 and the second fixing hole 515 are connected by fasteners.

[0206] The second fixing post 514 can create a certain space between the partition plate 51 and the main control board 171, so that electronic devices can also be installed on the side of the main control board 171 facing the partition plate 51. The second fixing hole 515 can be a screw hole, and the fastener is a screw. The fastener passes through the second through hole 173 and engages with the threaded connection of the second fixing hole 515, thereby simplifying the connection process between the partition plate 51 and the main control board 171. The second fixing post 514 can provide sufficient forming depth for the second fixing hole 515 to improve the connection strength between the partition plate 51 and the main control board 171.

[0207] Specifically, such as Figure 24 and Figure 28 As shown, the enclosure plate 53 has an opening section connected to the end of the partition plate 51 away from the mounting base 52. The opening section has a first air passage 114a and a second air passage 114b. The first air passage 114a communicates with the first cavity 112, and the second air passage 114b communicates with the second cavity 113. The first air passage 114a and the second air passage 114b are located at the end of the partition bracket 50 away from the mounting base 52. The first air passage 114a and the second air passage 114b can respectively connect the first cavity 112 and the second cavity 113 with the external airflow environment, so that the airflow in the first cavity 112 and the second cavity 113 can be effectively renewed.

[0208] If the functional output head 30 is an ultrasonic cannon head, then the internal space of the functional output head 30 is not connected to the internal space of the body 10. At this time, one of the first air vent 114a and the second air vent 114b serves as an air inlet and the other serves as an air outlet, thereby dissipating heat from the first cavity 112 and the second cavity 113.

[0209] If the function output head 30 is a phototherapy head, then the internal space of the function output head 30 is connected to the internal space of the body 10. At this time, the first air vent 114a and the second air vent 114b both serve as air inlets, so that external airflow can enter and exit the function output head 30 through the first cavity 112 and the second cavity 113.

[0210] The first air vent 114a and the second air vent 114b are directly formed on the intermediate partition bracket 50. Therefore, during the processing of the first shell part 116 and the second shell part 117, there is no need to reserve holes, which simplifies the forming method of the first air vent 114a and the second air vent 114b.

[0211] In yet another embodiment of the invention, as Figures 31 to 35 As shown, the skin treatment device includes a body 10 and a functional output head 30. The body 10 includes a housing 11, one end of which is provided with a mounting groove 12. A vent 126 is provided at the bottom of the mounting groove 12. The housing 11 also has an air vent 114, which connects the internal space of the housing 11 to the external environment. The functional output head 30 includes a housing 31, a functional output component 32 installed within the housing 31, a heat sink 34 installed within the housing 31, and a second fan 35. The functional output component 32 is used to generate a product that acts on the skin. Energy; the second fan 35 and radiator 34 are used to dissipate heat from the functional output component 32; the housing 31 is installed in the assembly slot 12, and the side of the housing 31 facing the bottom of the assembly slot 12 is provided with a vent 316, which is connected to the air vent 126 so that the internal space of the housing 31 is connected to the internal space of the casing 11; the peripheral wall of the housing 31 is provided with a heat dissipation vent 318, which connects the internal space of the housing 31 to the external environment; the second fan 35 is used to drive airflow through the radiator 34.

[0212] In this embodiment, the heat dissipation vent 318 connects the internal space of the function output head 30 with the external environment, and the air vent 114 connects the internal space of the body 10 with the external environment. The internal space of the function output head 30 and the internal space of the body 10 are interconnected through the ventilation vent 316 and the air vent 114. Therefore, driven by the second fan 35, the airflow can flow into the skin treatment device from either the air vent 114 or the heat dissipation vent 318, and then flow out from the other. For example, if the air vent 114 is used as the air inlet, when the second fan 35 is running, it can drive the airflow from the air vent 114 into the body 10, and then from the body 10 into the function output head 30. The airflow flowing into the function output head 30 will pass through the heat sink 34 and finally flow out from the heat dissipation vent 318, thereby removing the heat from the heat sink 34. If the heat dissipation port 318 is used as the air inlet, when the second fan 35 is running, it can drive the airflow from the heat dissipation port 318 into the function output head 30, flow through the radiator 34 and then flow into the body 10 from the function output head 30, and finally flow out from the air outlet 114, thereby removing the heat from the radiator 34.

[0213] As can be seen, since the vent 316 can connect with the external environment through the inner cavity of the housing 11 and the air vent 114, the vent 316 can be opened on the end wall of the housing 31, without needing to be opened on the peripheral wall of the housing 31 together with the heat dissipation vent 318. Thus, the opening area of ​​the vent 316 and the heat dissipation vent 318 will not affect each other. Therefore, the heat dissipation vent 318 on the peripheral wall of the function output head 30 can be used entirely for air intake or entirely for air exhaust. The opening area of ​​the vent 316 and the heat dissipation vent 318 will not affect each other. As a result, the air passage cross section of the vent 316 and the heat dissipation vent 318 can be increased at the same time to increase the airflow into and out of the housing 31, thereby improving the heat dissipation effect of the radiator 34.

[0214] For example, such as Figure 32 and Figure 33 As shown, the wall of the assembly groove 12 is provided with a clearance notch 116 corresponding to the position of the heat dissipation port 318, and part of the heat dissipation port 318 is exposed through the clearance notch 116. The functional output head 30 is partially embedded in the assembly groove 12, and the other part extends out of the groove opening of the assembly groove 12. The heat dissipation ports 318 are distributed in the part where the functional output head 30 extends into the groove opening of the assembly groove 12, and the other part is distributed in the part where the functional output head 30 is exposed through the clearance notch 116. This allows all the heat dissipation ports 318 to be exposed to the external environment, ensuring that the airflow in the functional output head 30 can flow into or out of the heat dissipation ports 318 more quickly and fully. At the same time, it allows for reasonable control of the size of the part of the functional output head 30 extending out of the assembly groove 12, thereby reducing the overall length of the skin treatment device.

[0215] Specifically, such as Figure 33As shown, the width of the clearance notch 116 gradually increases from the side near the bottom of the mounting slot 12 towards the side near the opening of the mounting slot 12. In this way, the clearance notch 116 is arranged in an flared shape that gradually expands from bottom to top, thereby providing sufficient exposed area for the heat dissipation vent 318 and improving the overall appearance of the body 10.

[0216] In practical applications, such as Figure 33 As shown, the clearance notch 116 includes a bottom clearance portion 116a and two side clearance portions 116b. The two side clearance portions 116b are arranged opposite to each other. The bottom clearance portion 116a connects the ends of the two side clearance portions 116b away from the opening of the mounting groove 12. The connection between the bottom clearance portion 116a and each of the side clearance portions 116b is an arc-shaped transition, and the connection between each of the side clearance portions 116b and the opening of the mounting groove 12 is also an arc-shaped transition. In this way, the transition at the corner of the clearance notch 116 is more natural, thereby improving the overall appearance and enhancing the user's tactile experience.

[0217] For example, the number of heat dissipation vents 318 is at least two, and the at least two heat dissipation vents 318 are arranged at circumferential intervals along the housing 31. In this way, the air inlet or outlet position of the function output head 30 can be increased to increase the airflow into or out of the function output head 30 through the heat dissipation vents 318, thereby improving the heat dissipation effect on the radiator 34.

[0218] For example, such as Figure 33 As shown, the vent 126 includes a first vent 126a, which is located near the periphery of the bottom of the assembly groove 12; the housing 31 has a first end plate 312, and a vent 316 is formed on the first end plate 312. The vent 316 includes a first vent 316a, which is located near the periphery of the first end plate 312. The positions of the first vent 126a and the first vent 316a correspond to each other, so that airflow can flow into or out of the housing 31 more quickly and fully through the first vent 316a and the first vent 126a.

[0219] Specifically, such as Figure 33 As shown, the first vent 126a is arranged in an arc shape extending along the periphery of the bottom of the assembly groove 12, which increases the airflow of the first vent 126a.

[0220] In practical applications, the number of first air vents 126a is at least two, and at least two first air vents 126a are arranged at intervals along the periphery of the bottom of the assembly groove 12. In this way, the air volume of the first air vents 126a can be further increased.

[0221] For example, such as Figure 31As shown, the first vent 316a is rectangular; there are multiple first vents 316a, which are distributed along the periphery of the first end plate 312. In this way, both the structural strength of the first end plate 312 and the airflow of the first vents 316a can be guaranteed.

[0222] For example, such as Figure 33 As shown, the vent 126 further includes a second vent 126b, which is located in the middle of the bottom of the assembly groove 12. The housing 11 is provided with a connecting buckle 20, and part of the connecting buckle 20 extends out of the second vent 126b. The ventilation port 316 includes a first through hole 311 corresponding to the second vent 126b. The housing 31 is provided with a mating fastener 40 adjacent to the first through hole 311. The connecting buckle 20 extends into the housing 31 from the first through hole 311 and is engaged and fixed with the mating fastener 40.

[0223] Based on the above embodiments of the connecting buckle 20 and the mating buckle, it can be seen that the connecting buckle 20 extends out of the bottom of the assembly groove 12 through the second vent 126b, and airflow can also flow around the connecting buckle 20 through the second vent 126b. Correspondingly, the connecting buckle 20 can extend into the housing 31 through the first through hole 311 to engage with the mating buckle 40, and airflow can also flow around the connecting buckle 20 through the first through hole 311, thereby increasing the communication position between the body 10 and the function output head 30 to improve the airflow.

[0224] Specifically, such as Figure 35 As shown, the function output head 30 also includes a circuit board 33 installed inside the housing 31. The circuit board 33 is adjacent to the first end plate 312, and the circuit board 33 has a third through hole 331 corresponding to the first through hole 311. The second vent 126b, the first through hole 311, and the third through hole 331 are connected in sequence, thereby enabling communication between the internal space of the body 10 and the internal space of the function output head 30.

[0225] In conjunction with the above embodiment of the connection pin 332, the circuit board 33 is provided with the connection pin 332, the first end plate 312 is provided with a fourth through hole 313 that exposes the connection pin 332, the fourth through hole 313 is located on one side of the first through hole 311, and a conductive pin 172 is installed at the bottom of the mounting groove 12, the conductive pin 172 abuts against the connection pin 332.

[0226] For example, such as Figure 34As shown, the housing 31 includes a housing body 301 with an open end. The housing body 301 includes a skin-fitting plate 302 and a surrounding plate 303 disposed around the skin-fitting plate 302. The first end plate 312 is installed at the open end. A flow gap 333 is formed between the circuit board 33 and the inner circumferential surface of the surrounding plate 303. The flow gap 333 communicates with the first vent 316a. The flow gap 333 is arranged around the circuit board 33. The first vent 126a, the first vent 316a, and the flow gap 333 are sequentially connected.

[0227] In conjunction with the above-described embodiment of support frame 39, such as Figure 34 As shown, the functional output head 30 also includes a support frame 39 installed inside the housing 31. The support frame 39 is located on the side of the circuit board 33 opposite to the first end plate 312 to support the second fan 35. The support frame 39 includes an annular support portion 392 and multiple support ribs 393 located on the inner side of the annular support portion 392. The multiple support ribs 393 divide the space inside the annular support portion 392 into at least two ventilation holes 392a. The mating fastener 40 is located on one of the support ribs 393 and on one side of one of the ventilation holes 392a. The second fan 35 is installed on the annular support portion 392 and dissipates heat through the ventilation holes 392a. One of the ventilation holes 392a is correspondingly arranged with the third through hole 331. The second vent 126b, the first through hole 311, the third through hole 331 and the ventilation hole 392a correspond sequentially to achieve communication between the internal space of the body 10 and the air inlet side of the second fan 35.

[0228] Specifically, the annular support portion 392 has multiple air passage holes, which are located near the outer periphery of the annular support portion 392 and spaced apart along its periphery. These air passage holes communicate with the flow gap 333. This increases the airflow through the ventilation holes 392a, thereby further improving the airflow between the body 10 and the function output head 30.

[0229] For example, the functional output head 30 includes a first functional head, which is detachably mounted on the body 10. The skin treatment device also includes a second functional head, which can be selectively mounted on one end of the body 10. The first functional head is a phototherapy head, and the second functional head is an ultrasonic cannon head. The phototherapy head emits therapeutic light to the user's skin, providing effects such as hair removal, whitening, and improving skin texture. The ultrasonic cannon head utilizes shock waves generated based on the ultrasonic cavitation mechanism to penetrate the skin and release skin secretions to the outside. It can also be used for acne treatment. Users can freely replace either the first or second functional head using the same body 10, thereby improving the ease of use of the skin treatment device.

[0230] In conjunction with the above embodiment of the partition 51, such as Figure 35 As shown, the housing 11 includes a partition 51, which divides the inner cavity of the body 10 into a first cavity 112 and a second cavity 113. The air vent 114 includes a first air vent 114a and a second air vent 114b. The first cavity 112 is connected to the first air vent 114a, and the second cavity 113 is connected to the second air vent 114b. Both the first cavity 112 and the second cavity 113 are connected to the vent 126. The partition 51 has an overflow port 511, which connects the first cavity 112 and the second cavity 113. The body 10 also includes a first fan installed at the overflow port 511.

[0231] When the second functional head is installed in the assembly slot 12, the second functional head does not need to rely on the inner cavity of the housing 11 for heat dissipation. At this time, the first air passage 114a can be used as an air outlet, and the second air passage 114b can be used as an air inlet. When the first fan is running, the external airflow enters the second cavity 113 through the second air passage 114b, flows to the first cavity 112 through the flow port 511, and then flows out of the first cavity 112 through the first air passage 114a. This can remove the heat in the first cavity 112 and the second cavity 113, thereby achieving heat dissipation of the internal functional components of the housing 10.

[0232] Specifically, such as Figure 35As shown, the first air vent 114a and the second air vent 114b are located at the end of the housing 11 away from the functional output head 30, and the flow outlet 511 is located at the part of the partition plate 51 near the functional output head 30. In this way, airflow can flow from the second air vent 114b into the second cavity 113, then from the second cavity 113 into the first cavity 112, and finally out of the first cavity 112 from the first air vent 114a. During this process, the airflow can pass through most of the space in the first cavity 112 and the second cavity 113, thereby more effectively carrying away heat from the first cavity 112 and the second cavity 113, thus improving the heat dissipation efficiency of the housing 10.

[0233] For example, such as Figure 35 As shown, the casing 10 also includes a main control board 171 installed in the first cavity 112. The outlet side of the first fan is connected to the first cavity 112, and the inlet side is connected to the second cavity 113. The gas flow rate on the outlet side of the first fan is much greater than that on its inlet side, thus driving the gas on its outlet side to flow and renew faster. Since the main control board 171 is located inside the first cavity 112, the heat inside the first cavity 112 is greater than that in the second cavity 113. Therefore, connecting the outlet side of the first fan to the first cavity 112 can drive the airflow to carry away the heat inside the first cavity 112 more quickly at a higher flow rate, thereby further improving the heat dissipation effect on the casing 10.

[0234] Specifically, the partition plate 51 has a mounting groove, the first fan is mounted in the mounting groove, and the flow port 511 is opened at the bottom of the mounting groove. The mounting groove can increase the mating area between the first fan and the partition plate 51, thereby improving the connection stability between the first fan and the partition plate 51.

[0235] In yet another embodiment of the invention, such as Figures 36 to 38As shown, the functional output head 30 includes a first functional head, which is a phototherapy head. The phototherapy head includes: a housing 31, one end of which is provided with a light-emitting area 361; and a lamp plate 37, which is installed inside the housing 31 and opposite to the light-emitting area 361. The lamp plate 37 includes a plate body 371 and at least two lamp bodies 372 installed on the plate body 371. The at least two lamp bodies 372 are installed on the side of the plate body 371 facing the light-emitting area 361 and are distributed between the plate body 371 and the light-emitting area. The area corresponding to 361 includes: a light diffuser 38, which is at least partially disposed between the lamp panel 37 and the light-emitting area 361, so that the light emitted from the lamp panel 37 is diffused by the light diffuser 38 before being directed to the light-emitting area 361; a cooling chip 341, which is disposed on the side of the lamp panel 37 away from the light-emitting area 361, and has a cooling surface and a heat dissipation surface, the cooling surface being thermally connected to the lamp panel 37 and used to cool the lamp panel 37; and a heat sink 34, which is thermally connected to the heat dissipation surface.

[0236] In this embodiment, the light-emitting area 361 can be an opening, a transparent solid, or a semi-transparent solid; there are no restrictions, as long as the light-emitting area 361 can allow light from the lamp board 37 to be emitted. The shape of the light-emitting area 361 can be circular, elliptical, racetrack-shaped, or polygonal, etc., and is not annular. The shape of the board body 371 can be circular, elliptical, racetrack-shaped, or polygonal, etc., corresponding to the light-emitting area 361, and is not annular. By setting the shapes of the light-emitting area 361 and the board body 371 to be non-annular, the mounting area of ​​the board body 371 and the light-emitting area of ​​the light-emitting area 361 can be increased, allowing the board body 371 to support more lamps 372 to emit more light. Furthermore, the light from the board body 371 can fully exit the housing 31 through the light-emitting area 361 and act on the user's skin, thereby improving the effective utilization rate of light and the skin care effect. The board body 371 can be a circuit board, which can transmit electrical energy and control signals to the lamps 372. The lamp body 372 can be an LED bead, specifically a yellow light lamp. The light emitted by the yellow light lamp is yellow light with a wavelength of 570nm to 590nm, which can penetrate into the skin to a depth of 0.5mm to 2mm. Yellow light can improve skin tone, inhibit melanin formation, lighten pigmentation, and has a whitening effect, as well as improve redness and swelling.

[0237] Specifically, such as Figure 37 and Figure 38As shown, the housing 31 has a light-emitting port 302a in the light-emitting area 361, and the functional output head 30 also includes a light-transmitting plate 362 installed at the light-emitting port 302a. The light-transmitting plate 362 is used to contact the user's skin so that the light-emitting area 361 can be effectively aligned with the user's target treatment area. The light emitted by the lamp panel 37 has heat, and if it shines directly on the user's skin, it will cause the user to feel heat. By setting the light-transmitting plate 362 to a sapphire glass panel, the temperature of the user's skin can be reduced, and the user's tactile experience can be improved. Sapphire glass refers to synthetic sapphire, which has higher hardness than ordinary glass, excellent thermal properties, and good chemical stability.

[0238] In practical applications, such as Figures 36 to 38 As shown, the function output head 30 also includes a sensor 363, which is installed on the inner wall of the housing 31 and surrounds the light-emitting area 361. The sensor 363 is electrically connected to the sensing circuit of the skin treatment device to generate a sensing signal when the end wall of the light-emitting area 361 abuts against human skin. When the end wall of the light-emitting area 361 abuts against human skin, the sensor 363 generates a sensing signal that is transmitted to the main control board of the skin treatment device. The main control board controls the function output head 30 to operate according to the sensing signal, thereby automatically controlling the lamp board 37 to be powered on to emit therapeutic light, thus improving the ease of use of the skin treatment device.

[0239] The light homogenizer 38 can have a microlens array geometric homogenization structure or a binary step diffraction structure inside, so as to soften the light. The point light source generated by the lamp panel 37 can become more uniform and soft after passing through the light homogenizer 38, so as to avoid the light being too bright and affecting people's vision, avoid the light concentration burning the user's skin, and ensure that the light emitted from the light-emitting area 361 has a more uniform skin care effect on the same skin area.

[0240] Specifically, such as Figure 39 As shown, the light-diffusing element 38 includes a light-diffusing plate 381 and a support ring 382 connected to the periphery of the light-diffusing plate 381. The support ring 382 abuts against the plate body 371, and the at least two lamp bodies 372 are located within the enclosed area of ​​the support ring 382. One side of the support ring 382 is connected to the side of the light-diffusing plate 381 facing the lamp plate 37, and the other side abuts against the plate body 371, so as to maintain a reasonable distance between the light-diffusing plate 381 and the lamp bodies 372. The support ring 382 can guide and refract the light scattered by the lamp bodies 372 in all directions to the light-diffusing plate 381, so that the light emitted by the lamp bodies 372 can ultimately pass through the light-diffusing plate 381 and exit the light-emitting area 361, thereby improving the effective utilization rate of light and the softening effect of light.

[0241] In practical applications, the outer peripheral wall of the support ring 382 is provided with a light-shielding layer. The light-shielding layer can be a light-shielding coating or a light-shielding film, and there is no limitation on it. The light-shielding layer can prevent light leakage from the support ring 382, ​​so that the light entering the light-shielding ring is fully reflected and refracted to the light-diffusing plate 381, thereby further improving the effective utilization rate of light.

[0242] For example, such as Figure 39 As shown, the light diffuser 38 has a first focusing groove 383 on the side facing the lamp plate 37. The number and position of the first focusing groove 383 correspond to the number and position of the lamp body 372. The inner wall surface of the first focusing groove 383 is curved. Each first focusing groove 383 can focus the light emitted by each lamp body 372 to further improve the effective utilization rate of light.

[0243] Specifically, such as Figure 39 As shown, the light-diffusing element 38 has a second focusing groove 384 on the side facing the light-emitting area 361. The number and position of the second focusing groove 384 correspond to the number and position of the lamp bodies 372. The inner wall surface of the second focusing groove 384 is an arc surface. Each second focusing groove can focus the light emitted by each lamp body 372 into the light-diffusing plate 381, thereby further improving the effective utilization rate of light.

[0244] In practical applications, such as Figure 39 As shown, the light-diffusing element 38 has a focusing boss 385 protruding on the side facing the lamp plate 37, corresponding to the lamp body 372. The first focusing groove 383 is formed on the focusing boss 385. If the corresponding first focusing groove 383 and second focusing groove 384 are directly formed on the opposite sides of the light-diffusing plate 381, the overall thickness required for the light-diffusing plate 381 would be large to avoid the first focusing groove 383 and the second focusing groove 384 from communicating with each other, thus increasing the space occupied by the light-diffusing element 38 in the housing 31. Therefore, by first forming the focusing boss 385 on the side of the light-diffusing element 38 facing the lamp plate 37, and then forming the first focusing groove 383 on the focusing boss 385, the other positions of the light-diffusing plate 381 can maintain a reasonable thickness, thereby reducing the space occupied by the light-diffusing element 38.

[0245] For example, such as Figure 39 As shown, the inner side of the support ring 382 is provided with a positioning post 382a, which protrudes from the support ring 382 and is positioned in the positioning hole on the lamp plate 37. The end of the positioning post 382a away from the light diffuser plate 381 is positioned and inserted into the positioning hole on the lamp plate 37, thereby realizing the fixed connection between the light diffuser 38 and the lamp plate 37, so as to improve the relative positional stability between the light diffuser 38 and the lamp plate 37.

[0246] Specifically, such as Figure 39 As shown, the support ring 382 has a first heat dissipation notch 382b, which is used to dissipate heat from the enclosed area of ​​the support ring 382. The heat generated by the lamp board 37 during the light emission process can be dissipated from the enclosed area of ​​the support ring 382 through the first heat dissipation notch 382b, thereby improving the operational stability of the lamp board 37.

[0247] The cooling element 341 can be a semiconductor cooling element 341, also called a thermoelectric cooling element 341. Utilizing the Peltier effect of semiconductor materials, when direct current passes through a thermocouple composed of two different semiconductor materials connected in series, heat is absorbed and released at the two ends of the thermocouple, achieving the purpose of cooling and heating. The cooling surface of the cooling element 341 can directly contact the lamp panel 37 to cool it, or it can indirectly conduct heat to the lamp panel 37 to cool it. The heat dissipation surface of the cooling element 341 dissipates heat through the heat sink 34, thus ensuring the continuous cooling effect of the cooling surface. The heat sink 34 includes a heat sink 34a and multiple heat sinks 34b connected to the heat sink 34a. The heat dissipation surface is thermally connected to the side of the heat sink 34a away from the heat sinks 34b, thereby improving the heat dissipation efficiency of the heat dissipation surface.

[0248] For example, such as Figures 36 to 38 ,and Figure 40 As shown, the functional output head 30 also includes a heat-conducting element 342, which is at least partially disposed between the lamp panel 37 and the cooling element 341. The lamp panel 37 is thermally connected to the side of the heat-conducting element 342 facing the lamp panel 37, and the cooling surface is thermally connected to the side of the heat-conducting element 342 facing the cooling element 341. The contact area between the heat-conducting element 342 and the lamp panel 37 is larger than the contact area between the cooling surface and the lamp panel 37, so that the heat from the lamp panel 37 can be transferred to the heat-conducting element 342 more quickly and fully to maintain the normal operation of the lamp panel 37. Then, the cooling surface cools the heat-conducting element 342 so that the heat-conducting element 342 can continuously absorb the heat from the lamp panel 37.

[0249] In conjunction with the above-described embodiment of the light-transmitting plate 362, such as Figure 40 As shown, the heat-conducting component 342 includes a heat-conducting plate 343 and a heat-conducting protrusion 344 connected to the heat-conducting plate 343 facing the lamp plate 37. One end of the heat-conducting protrusion 344, away from the heat-conducting plate 343, is thermally connected to the light-transmitting plate 362. The heat-conducting protrusion 344 is located around the periphery of the heat-conducting plate 343, i.e., around the lamp plate 37. The heat-conducting protrusion 344 can transfer the cooling effect of the cooling element 341 to the light-transmitting plate 362, thereby reducing the temperature of the light-transmitting plate 362 and further improving the tactile feel of the light-transmitting plate 362 against the user's skin, thus further improving the user experience of the function output head 30.

[0250] Specifically, such as Figure 40 As shown, the heat-conducting protrusion 344 is annular and located around the periphery of the heat-conducting plate 343. The lamp plate 37 and the light diffuser 38 are located within the enclosed area of ​​the heat-conducting protrusion 344. The heat-conducting protrusion 344 and the heat-conducting plate 343 enclose each other to form a heat-conducting groove. The lamp plate 37 and the light diffuser 38 are located within the heat-conducting groove. This improves the relative positional stability of the lamp plate 37, the light diffuser 38, and the heat-conducting element 342, while also making the internal structure of the functional output head 30 more compact.

[0251] For example, such as Figure 38 As shown, the light-transmitting plate 362 has an annular limiting notch 362a on the periphery of the side facing away from the lamp plate 37. The limiting notch 362a includes a limiting part 362b located on the periphery of the light-transmitting plate 362 and a light-transmitting protrusion 362c protruding from the limiting part 362b in the direction away from the lamp plate 37. The light-transmitting protrusion is located inside the light outlet 302a. The limiting part 362b abuts against the inner wall surface of the end wall where the light outlet 302a is located. The heat-conducting protrusion 344 at least partially abuts against the side of the limiting part 362b facing the lamp plate 37.

[0252] The limiting notch 362a engages with the inner periphery of the light outlet 302a, and the limiting part 362b restricts the light-transmitting plate 362 from disengaging from the light outlet 302a, thereby improving the installation stability of the light-transmitting plate 362. The side of the limiting part 362b facing the lamp plate 37 is flush with the side of the light-transmitting protrusion 362c facing the lamp plate 37, so as to fully contact the heat-conducting protrusion 344, thereby ensuring the contact area between the heat-conducting protrusion 344 and the light-transmitting plate 362 and improving the cooling effect of the cooling element 341 on the light-transmitting panel.

[0253] Specifically, such as Figure 40 As shown, the heat-conducting plate 343 has a second heat dissipation notch 343a on its peripheral side. The second heat dissipation notch 343a is connected to the enclosed area of ​​the heat-conducting protrusion 344. The second heat dissipation notch 343a is correspondingly provided with the first heat dissipation notch 382b of the light-diffusing component 38.

[0254] The light diffuser 38 and the lamp plate 37 are located within the enclosed area of ​​the heat-conducting protrusion 344. The heat generated by the lamp plate 37 during the light emission process can be dissipated out of the enclosed area of ​​the support ring 382 through the first heat dissipation notch 382b, and then dissipated out of the enclosed area of ​​the heat-conducting protrusion 344 through the second heat dissipation notch 343a, thereby further improving the heat dissipation effect of the lamp plate 37.

[0255] In practical applications, such as Figure 36As shown, the light-diffusing plate 381 of the light-diffusing component 38 abuts against the light-transmitting plate 362 on the side facing the light-transmitting plate 362. The light-diffusing plate 381 of the light-diffusing component 38 has an annular groove 381a on the side facing the light-transmitting plate 362, and an O-ring 386 is provided in the annular groove 381a. The support ring 382 of the light-diffusing component 38 abuts against the side of the lamp plate 37 facing the light-transmitting plate 362, and the side of the lamp plate 37 away from the light-transmitting plate 362 abuts against the heat-conducting plate 343.

[0256] The O-ring 386 is a rubber ring that protrudes from the opening of the annular groove 381a and abuts against the light-transmitting plate 362. The O-ring 386 can use the elastic force generated by the deformation of the light-transmitting plate 362 to press the light-diffusing element 38 and the lamp plate 37 into the heat-conducting element 342, thereby preventing the light-diffusing element 38 and the lamp plate 37 from shaking in the heat-conducting element 342 and improving the installation stability of the light-diffusing element 38 and the lamp plate 37.

[0257] For example, such as Figures 36 to 38 ,as well as Figure 41 As shown, the functional output head 30 also includes a connecting bracket 351 installed in the housing 31. The connecting bracket 351 is connected to the side of the heat-conducting plate 343 facing away from the light outlet 302a. The connecting bracket 351 is provided with a mounting through hole 352, and the cooling chip 341 is installed in the mounting through hole 352. The heat sink 34 is installed on the connecting bracket 351, and the cooling chip 341 is located between the heat sink 34 and the heat-conducting plate 343.

[0258] The heat-conducting component 342 and the heat sink 34 are respectively connected to opposite sides of the connecting bracket 351. The connecting bracket 351 can be fixedly connected to the housing 31, thereby providing fixed support for the heat-conducting component 342, the lamp plate 37, and the light diffuser 38, and also enabling the fixed installation of the heat sink 34 within the housing 31. The mounting through hole 352 penetrates the connecting bracket 351 on the side facing the heat-conducting component 342 and the side facing the heat sink 34. The cooling chip 341 is located within the mounting through hole 352, with its cooling surface abutting against the heat-conducting plate 343 and its heat dissipation surface abutting against the heat sink 34.

[0259] Specifically, such as Figure 42As shown, the housing 31 includes a housing body 301 with one open end. The housing body 301 includes a skin-fitting plate 302 and a surrounding plate 303 disposed around the skin-fitting plate 302. The light-emitting port 302a is disposed on the skin-fitting plate 302. The surrounding plate 303 has a first screw post 303d303c on its inner side near the skin-fitting plate 302. The peripheral wall of the connecting bracket 351 has a first connecting lug 353, which is fixedly connected to the first screw post 303d303c. The first connecting lug 353 and the first screw post 303d303c are connected by screws. The first connecting lug 353 protrudes from the part of the connecting bracket 351 away from the light-emitting port 302a and is connected to the end of the first screw post 303d303c away from the light-emitting port 302a.

[0260] The connecting bracket 351 is provided with a first clearance groove 354, and the peripheral walls of the heat-conducting plate 343 and the heat-conducting protrusion 344 are provided with a second clearance groove 342a corresponding to the first clearance groove 354. The first screw hole post 303d 303c is provided in the first clearance groove 354 and the second clearance groove 342a.

[0261] The peripheral wall of the connecting bracket 351 needs to be provided with a first clearance groove 354 to avoid the first screw hole post 303d303c. In this way, other parts of the peripheral wall of the connecting bracket 351 can remain close to the inner surface of the shell body 301, thereby making the internal structure of the function output head 30 more compact. The heat conduction element 342 is located on the side of the connecting bracket 351 near the light outlet 302a. When the first screw hole post 303d303c is connected to the connecting lug, it also needs to pass through the heat conduction element 342. Therefore, the peripheral walls of the heat conduction plate 343 and the heat conduction protrusion 344 also need to be provided with a second clearance groove 342a to avoid the first screw hole post 303d303c. In this way, other parts of the peripheral walls of the heat conduction plate 343 and the heat conduction protrusion 344 can remain close to the inner surface of the shell body 301, thereby making the internal structure of the function output head 30 more compact.

[0262] In practical applications, such as Figure 41 As shown, the inner side of the enclosure 303 is provided with a sixth clearance groove 303e to avoid the first connecting lug 353. In this way, other parts of the inner side of the enclosure 303 can remain close to the peripheral wall of the connecting bracket 351, thereby making the internal structure of the function output head 30 more compact.

[0263] For example, such as Figure 42As shown, the connecting bracket 351 has a first threaded hole 355 on the side facing the light outlet 302a, and the heat-conducting plate 343 and / or the heat-conducting protrusion 344 has a second connecting lug 342b on its peripheral wall. The second connecting lug 342b is connected to the first threaded hole 355 by a second fastener. The second fastener connects the second connecting lug 342b to the first threaded hole 355 to achieve a fixed connection between the connecting bracket 351 and the heat-conducting component 342.

[0264] The peripheral wall of the heat-conducting plate 343 and / or the heat-conducting protrusion 344 is provided with a third clearance groove 342c to avoid the second fastener. The head of the second fastener is exposed on the periphery of the heat-conducting plate 343 and / or the heat-conducting protrusion 344. Therefore, the peripheral wall of the heat-conducting plate 343 and / or the heat-conducting protrusion 344 needs to be provided with a third clearance groove 342c to avoid the head of the second fastener, so that other positions of the peripheral wall of the heat-conducting plate 343 and / or the heat-conducting protrusion 344 can remain close to the inner side of the surrounding plate 303, thereby making the internal structure of the functional output head 30 more compact.

[0265] Specifically, such as Figure 42 As shown, the connecting bracket 351 has a second threaded hole 356 on the side opposite to the light outlet 302a. The heat sink 34 includes a heat sink plate 34a and a heat sink fin 34b disposed on the heat sink plate 34a. A third fastener fixes the heat sink plate 34a to the second threaded hole 356. The heat sink fin 34b is connected to the side of the heat sink plate 34a opposite to the connecting bracket 351. The heat sink plate 34a has a fastening hole corresponding to the second threaded hole 356. The third fastener passes through the fastening hole and is fixedly connected to the second threaded hole 356 to achieve a fixed connection between the heat sink 34 and the connecting bracket 351.

[0266] In one specific embodiment, such as Figure 41As shown, the housing 31 includes a housing body 301 with one open end and a first end plate 312. The housing body 301 includes a skin-fitting plate 302 and a surrounding plate 303 disposed around the skin-fitting plate 302. The open end is formed at the end of the surrounding plate 303 away from the skin-fitting plate 302. The light outlet 302a is disposed on the skin-fitting plate 302. The first end plate 312 is installed at the open end. A second screw post 303b is provided on the inner side of the surrounding plate 303. The second screw post 303b extends from the end of the surrounding plate 303 near the skin-fitting plate 302 to the end of the surrounding plate 303 away from the skin-fitting plate 302. The connecting bracket 35... The 1 is provided with a fourth clearance groove 357, and the peripheral walls of the heat-conducting plate 343 and the heat-conducting protrusion 344 are provided with a fifth clearance groove 342d corresponding to the fourth clearance groove 357. The second screw hole post 303b is provided in the fourth clearance groove 357 and the fifth clearance groove 342d. The functional output head 30 also includes a support frame 39 and a second fan 35 installed in the housing 31. The support frame 39 is located on the side of the heat sink 34 away from the light outlet 302a. The support frame 39 is installed on the second screw hole post 303b by a third fastener. The second fan 35 is installed on the support frame 39 for heat dissipation of the heat sink 34.

[0267] The support frame 39, located away from the first end plate 312, supports the second fan 35, enabling its fixed installation within the housing 31. The third fastener can be a screw. The support frame 39 has a second fastening hole, through which the rod of the third fastener passes and engages with the screw hole of the second screw post 303b. The support frame 39 is connected to the end of the second screw post 303b furthest from the light outlet 302a. Since the second screw post 303b passes through the connecting bracket 351 and the heat-conducting component 342, a fourth clearance groove 357 is required on the peripheral wall of the connecting bracket 351 to avoid the second screw post 303b. This ensures that other parts of the peripheral wall of the connecting bracket 351 remain close to the inner surface of the housing body 301, resulting in a more compact internal structure for the functional output head 30. Correspondingly, the peripheral walls of the heat-conducting plate 343 and the heat-conducting protrusion 344 also need to be provided with a fifth clearance groove 342d to avoid the second screw hole post 303b. In this way, other parts of the peripheral walls of the heat-conducting plate 343 and the heat-conducting protrusion 344 can remain close to the inner side of the shell body 301, thereby making the internal structure of the function output head 30 more compact.

[0268] For example, such as Figure 36As shown, the housing 31 is provided with a heat dissipation chamber 315, a vent, and a heat dissipation opening. The vent and the heat dissipation opening are connected through the heat dissipation chamber 315. The radiator 34 is installed in the heat dissipation chamber 315. The functional output head 30 also includes a second fan 35 installed inside the heat dissipation chamber 315. The vent and the heat dissipation opening are used to allow external airflow to enter and exit the heat dissipation chamber 315. For example, driven by the second fan 35, the cooling airflow enters the heat dissipation chamber 315 through the vent, flows through the radiator 34, and then flows out of the heat dissipation opening to improve the heat dissipation efficiency of the radiator 34.

[0269] The present invention also proposes a skin treatment device, which includes a body and a function output head 30 as described above, the function output head 30 being mounted on the body.

[0270] For example, such as Figure 43 As shown, the functional output head 30 includes a first functional head, which is detachably mounted on the body. The skin treatment device also includes a second functional head 300, which includes an ultrasound module 310 for outputting sound wave energy. The first functional head and the second functional head 300 can be selectively mounted on the body.

[0271] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A skin treatment device, characterized in that, include: The fuselage includes a housing, one end of which is provided with an assembly groove, and a connecting buckle is provided inside the housing, with the connecting buckle extending out from the bottom of the assembly groove; A function output head is detachably installed in the assembly slot. The function output head includes a housing and a function output component installed in the housing. The housing has a first through hole at one end facing the bottom of the assembly slot. The housing has a mating fastener adjacent to the first through hole. The mating fastener is located on the side of the first through hole facing away from the bottom of the assembly slot. When the functional output head is installed in the assembly slot, the connecting buckle extends into the housing from the first through hole and engages with the mating buckle for fixation.

2. The skin treatment device as described in claim 1, characterized in that, The housing includes a first end plate, the first through hole is formed in the first end plate, the mating fastener includes a first connecting part and a first snap-fit ​​part provided at the end of the first connecting part, the projection of the first snap-fit ​​part on the first end plate is at least partially located in the projection area of ​​the first through hole, the first snap-fit ​​part has a first snap-fit ​​surface facing away from the first through hole, and the connecting buckle engages with the first snap-fit ​​surface.

3. The skin treatment device as described in claim 2, characterized in that, The first connecting portion extends along the depth direction of the first through hole, and the projection of the first connecting portion on the first end plate is located outside the projection area of ​​the first through hole.

4. The skin treatment device as described in claim 1, characterized in that, The housing includes a first end plate, and the first through hole is formed in the first end plate. The functional output head also includes a support frame installed in the housing. The support frame is located between the functional output component and the first end plate to support the functional components in the functional output head. The mating fastener is connected to the side of the support frame facing the first end plate.

5. The skin treatment device as described in claim 4, characterized in that, The functional output head also includes a circuit board installed inside the housing. The circuit board is located between the first end plate and the support frame. The support frame has a first connecting post protruding on the side facing the first end plate. The circuit board is connected to the first connecting post. The circuit board has a third through hole, which is corresponding to the first through hole.

6. The skin treatment device as described in claim 5, characterized in that, The circuit board is provided with connection pins, and the first end plate is provided with a fourth through hole that exposes the connection pins, the fourth through hole being located on one side of the first through hole; and / or, The housing includes a housing body with an open end, the housing body including a skin-fitting plate and a surrounding plate disposed around the skin-fitting plate, and a first end plate installed at the open end; and the first end plate is provided with an abutting protrusion and a mounting buckle, the abutting protrusion abutting against the circuit board, and the mounting buckle engaging with the side of the circuit board opposite to the first end plate, so that the first end plate is installed at the open end; and / or, the first end plate is provided with a ventilation notch around its perimeter to form a ventilation channel with the inner side of the housing body; and / or, the first connecting post is a screw hole post, the circuit board is connected to the first connecting post by a first fastener, and the first end plate is provided with a first clearance groove corresponding to the first fastener; and / or The first through hole is rectangular.

7. The skin treatment device as claimed in claim 4, characterized in that, The housing includes a shell body with an open end, the shell body including a skin-fitting plate and a surrounding plate disposed around the periphery of the skin-fitting plate, the first end plate being installed at the open end; the inner side of the surrounding plate is provided with a second threaded post, and the support frame is installed to the second threaded post by a third fastener; and / or, The functional output head is a phototherapy head, which also includes a cooling structure and a heat dissipation structure. The functional output component includes a light source for generating light energy that acts on the skin. The cooling structure is partially exposed on the skin-adhesive plate, and the heat dissipation structure is used to dissipate heat from the functional output component. The heat dissipation structure includes a second fan and a radiator. The support frame includes an annular support portion and multiple support ribs located on the inner side of the annular support portion. The multiple support ribs divide the space inside the annular support portion into at least two ventilation holes. The mating fastener is located on one of the support ribs and on one side of one of the ventilation holes. The second fan is installed on the annular support portion and dissipates heat through the ventilation hole. Alternatively, the functional output head is an ultrasonic cannon head, which includes an ultrasonic transducer and is installed on the support frame.

8. The skin treatment device as claimed in claim 7, characterized in that, The inner side of the open end of the shell body is provided with a stop groove, the second screw post extends to the stop groove, and the support frame abuts against the bottom of the stop groove.

9. The skin treatment device according to any one of claims 1-8, characterized in that, The connecting buckle is rotatably mounted on the housing and has a locked position and an unlocked position. When the connecting buckle is in the locked position, it is engaged and fixed with the mating buckle. When the connecting buckle is in the unlocked position, it is disengaged from the mating buckle. The connecting buckle includes a second connecting part, a second latching part, and a transmission part. The second connecting part is rotatably mounted on the housing. The second latching part and the transmission part are respectively connected to both ends of the second connecting part. The housing has an unlocking port. The housing also includes an unlocking key and a transmission component. The unlocking key is movably mounted on the unlocking port. The transmission component is movably mounted between the transmission part and the unlocking key to transmit the movement of the unlocking key and the transmission part to each other. The second latching part is located on the side of the second connecting part opposite to the transmission component. The transmission component is used to push the transmission part to rotate when the unlock key is pressed, so as to drive the second locking part to rotate from the locked position to the unlocked position; The housing is provided with a support portion, which is located on the side of the transmission portion away from the transmission component. The housing also includes an elastic reset component, one end of which is connected to the transmission portion and the other end of which is connected to the support portion. The elastic reset component is used to reset the unlock button by pushing the transmission portion to reset, and to reset the second latching portion to the locking position. The transmission part is provided with a positioning post, and one end of the elastic reset member is sleeved on the positioning post; and / or, the support part is provided with a limiting groove, and the other end of the elastic reset member is disposed in the limiting groove; The first engaging portion has a first guide slope on the side facing the first through hole. When the second engaging portion passes the first engaging portion, the first guide slope allows the second engaging portion to slide against it, thereby squeezing the second engaging portion out of the locking position; and / or, The second snap-fit ​​portion is provided with a second guide slope. When the second snap-fit ​​portion passes the first snap-fit ​​portion, the second guide slope is used to slide against the first snap-fit ​​portion so that the first snap-fit ​​portion pushes the second snap-fit ​​portion out of the locking position. The outer peripheral wall of the housing is provided with a mis-proof groove, and the inner side wall of the housing at the assembly groove is provided with a positioning rib, and the mis-proof groove cooperates with the positioning rib. The bottom of the assembly slot is provided with a ventilation opening, and the housing is provided with an air passage opening, which connects the internal space of the housing with the external environment. The functional output head also includes a radiator and a second fan installed inside the housing, the second fan and the radiator being used to dissipate heat from the functional output component; the housing is installed in the assembly slot, and the side of the housing facing the bottom of the assembly slot has a vent, the vent being connected to the air vent to allow the internal space of the housing to communicate with the internal space of the casing; the peripheral wall of the housing has a heat dissipation vent, the heat dissipation vent connecting the internal space of the housing to the external environment; the second fan is used to drive airflow through the radiator; The housing includes a central partition bracket, a first housing portion, and a second housing portion. The length direction of the central partition bracket is consistent with the length direction of the housing. The central partition bracket includes a central partition plate and a mounting base. The mounting base is connected to one end of the central partition plate along its length direction. The first housing portion and the second housing portion are respectively located on both sides of the central partition plate and are respectively connected to both sides of the central partition bracket. A first cavity is formed between the first housing portion and the central partition plate, and a second cavity is formed between the second housing portion and the central partition plate. The mounting base has an assembly groove formed on the side away from the central partition plate. The partition bracket further includes a surrounding plate disposed along the periphery of the partition plate. The partition plate is connected to the inner side of the surrounding plate, such that the surrounding plate includes a first surrounding portion and a second surrounding portion connected along the thickness direction of the partition plate. The first shell portion is connected to the first surrounding portion, thereby forming a first cavity between the first shell portion and the partition plate. The second shell portion is connected to the second surrounding portion, thereby forming a second cavity between the second shell portion and the partition plate. The body also includes an unlocking structure. The housing has a first housing wall with an unlocking port. The unlocking structure is movably installed on the housing. The unlocking structure has a pressing end and an unlocking end, with the pressing end exposed at the unlocking port. The connecting buckle has a locked position and an unlocked position on the moving path. When the connecting buckle is in the locked position, it is engaged and fixed with the mating buckle. When the connecting buckle is in the unlocked position, it is disengaged from the mating buckle. The unlocking end is connected to the connecting buckle so that when the pressing end is pressed, the connecting buckle moves from the locked position to the unlocked position; The pressing end is offset relative to the unlocking end toward the function output head to form a gap area on the outer wall surface of the first shell wall corresponding to the unlocking end. The gap area is located on the side of the pressing end away from the function output head, and the gap area is used to increase the distance between the pressing end and the adjacent key. The housing also includes an electronic control unit and control keys. The housing has a mounting cavity and a keyhole communicating with the mounting cavity. The housing has a protruding elastic reset arm adjacent to the keyhole, and the end of the elastic reset arm extends from the fixed end of the elastic reset arm in a direction away from the keyhole. The electronic control unit is installed in the mounting cavity. The electronic control unit includes a main control board and a push switch electrically connected to the main control board. The push switch is opposite to the keyhole. The control key is pressable and installed on the outer surface of the housing. The control key includes a pressing plate and a trigger part connected to the inner side of the pressing plate. The pressing plate covers the keyhole and abuts against the end of the elastic reset arm. The trigger part extends into the keyhole and abuts against the push switch. The elastic reset arm is used to reset the control key in a direction away from the outer surface of the housing. The function output head is electrically connected to the main control board.

10. A functional output head, applied to a skin treatment device, characterized in that, The function output head includes a housing and a function output component installed in the housing. One end of the housing has a first through hole, and the housing has a mating fastener adjacent to the first through hole. The mating fastener is located inside the first through hole. The first through hole and the mating fastener are configured such that when the housing is mounted on the body of the skin treatment device, a connecting buckle on the body extends from the first through hole into the housing and engages with the mating fastener for fixation.

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