Beauty instrument
By incorporating recesses into the beauty device's casing, the problem of insufficient contact between the treatment head and the face is resolved, expanding the effective area, optimizing the beauty effect, reducing energy loss, and enhancing the user experience.
Patent Information
- Application Number
- CN202423132532.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2034-12-18
AI Technical Summary
The protruding curved surface of the treatment head of existing handheld beauty devices cannot fit closely to the user's face, resulting in a small range of action, poor beauty effect, and unnecessary energy consumption.
A recessed section is designed into the casing of the beauty device to increase the contact area between the treatment head and the face, optimize the beauty effect, and avoid energy loss.
The recessed design expands the range of the beauty device, optimizes the beauty effect, reduces energy loss, and improves the user experience.
Smart Images

Figure CN223901085U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to cosmetic instrument technical field, especially is involved in a cosmetic instrument. BACKGROUND
[0002] In the related art, the handheld cosmetic instrument usually comprises a handheld part and a nursing head, the nursing head can perform nursing on the skin after being electrified, the nursing head has a convex curved surface, the nursing head contacts the face of the user through the curved surface, however, the convex curved surface cannot be closely combined with the chin position of the user, resulting in that the handheld cosmetic instrument has a small action range on the face of the user, the cosmetic effect is poor, and unnecessary energy loss is caused. SUMMARY
[0003] The utility model aims at at least solving one of the technical problems existing in the prior art. For this purpose, one object of the utility model is to provide a cosmetic instrument, by setting a recessed part on the shell, the action range of the cosmetic instrument on the face of the user is enlarged, the cosmetic effect of the cosmetic instrument on the face of the user is optimized, and unnecessary energy loss is avoided.
[0004] According to the cosmetic instrument provided by the utility model, by setting the recessed part on the shell, the action range of the cosmetic instrument on the face of the user is enlarged, the cosmetic effect of the cosmetic instrument on the face of the user is optimized, and unnecessary energy loss is avoided.
[0005] According to the cosmetic instrument provided by the utility model, by setting the recessed part on the shell, the action range of the cosmetic instrument on the face of the user is enlarged, the cosmetic effect of the cosmetic instrument on the face of the user is optimized, and unnecessary energy loss is avoided.
[0006] According to some embodiments of the utility model, in the projection plane of the third direction, the side surface of the recessed part away from the main body is a first arc surface, the curvature radius of the first arc surface is K1, wherein the K1 satisfies: 14.2mm≤K1≤160mm.
[0007] According to some embodiments of the utility model, in the projection plane of the second direction, the side surface of the recessed part away from the main body is a second arc surface, the curvature radius of the second arc surface is K2, wherein the K2 satisfies: 9mm≤K2≤522mm.
[0008] According to some embodiments of the utility model, in the projection plane of the third direction, the radian of the first arc surface is a, wherein the a satisfies: 40°≤a≤170°.
[0009] According to some embodiments of the present application, the shell further comprises: two protruding parts, the two protruding parts are connected to two sides of the recessed part in the second direction respectively; in the first direction, an end of each of the protruding parts away from the main body protrudes from an end of the recessed part away from the main body.
[0010] According to some embodiments of the present application, in the projection plane in the third direction, a side surface of each of the protruding parts away from the main body is a third arc surface, a radius of curvature of the third arc surface is K3, wherein the K3 satisfies: 20mm≤K3≤160mm.
[0011] According to some embodiments of the present application, in the projection plane in the second direction, a side surface of each of the protruding parts away from the main body is a fourth arc surface, a radius of curvature of the fourth arc surface is K4, wherein the K4 satisfies: 13.88mm≤K4≤66.15mm.
[0012] According to some embodiments of the present application, in the projection plane in the third direction, an arc of the third arc surface is β, wherein the β satisfies: 90°≤β≤160°.
[0013] According to some embodiments of the present application, at least one side surface of each of the electrodes in the second direction is an arc surface; and / or the plurality of electrodes comprises a first sub-electrode and a second sub-electrode, the first sub-electrode is arranged adjacent to the recessed part, the second sub-electrode is arranged adjacent to an edge of the shell, the at least one side surface of the first sub-electrode in the second direction protrudes in a direction towards the center of the shell; and / or the at least one side surface of the second sub-electrode in the second direction protrudes in a direction away from the center of the shell.
[0014] According to some embodiments of the present application, the shell is a transparent shell; a light therapy assembly is arranged in the main body, the light therapy assembly is connected to a circuit board of the main body, and light emitted by the light therapy assembly is emitted through the transparent shell.
[0015] According to some embodiments of the present application, the shell comprises an outer shell and an inner shell, the inner shell is arranged on the inner side of the outer shell in the first direction; in the projection plane in the second direction, a side surface of the inner shell adjacent to the outer shell is a fifth arc surface, a radius of curvature of the fifth arc surface is K5, wherein the K5 satisfies: 11mm≤K5≤200mm.
[0016] Additional aspects and advantages of the present application will be given in part in the following description, and will become apparent from the following description, or will be learned by practice of the present application. Attached Figure Description
[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0018] Figure 1 This is a schematic diagram of a beauty device according to the first embodiment of the present invention;
[0019] Figure 2 yes Figure 1 A partial view of the beauty device shown;
[0020] Figure 3 yes Figure 1 A partial cross-sectional view of the beauty device shown;
[0021] Figure 4 yes Figure 1 A partial cross-sectional view of the beauty device shown from another angle;
[0022] Figure 5 yes Figure 1 A cross-sectional view of the beauty device shown;
[0023] Figure 6 yes Figure 1 An exploded view of the beauty device shown.
[0024] Figure 7 This is a schematic diagram of a beauty device according to the second embodiment of the present invention.
[0025] Figure label:
[0026] 100. Beauty devices;
[0027] 1. Main body; 2. Nursing head; 21. Shell; 211. Recessed part; 2111. First arc-shaped surface; 2112. Second arc-shaped surface; 212. Protrusion; 2121. Third arc-shaped surface; 2122. Fourth arc-shaped surface; 213. Outer shell; 214. Inner shell; 2141. Fifth arc-shaped surface; 22. Electrode; 221. First sub-electrode; 222. Second sub-electrode. Detailed Implementation
[0028] The following is for reference. Figures 1-7 A beauty device 100 according to an embodiment of the present utility model is described.
[0029] like Figures 1-7 As shown, the beauty device 100 according to an embodiment of the present utility model includes: a main body 1 and a care head 2.
[0030] Specifically, subjects 1 have a first direction that is orthogonal to each other (e.g., Figure 1 (the vertical direction in the middle), the second direction (for example,Figure 1 a third direction (for example, a front-rear direction in the body 1). Figure 1 The care head 2 is arranged on one side of the body 1 in the first direction, and includes a shell 21 and a plurality of electrodes 22, which are arranged on the shell 21 and are spaced apart in the second direction, and each electrode 22 extends in the third direction. In the first direction, part of the shell 21 is recessed to form a recessed portion 211. In the description of the utility model, "a plurality of" means two or more.
[0031] It should be noted that the first direction can be the height direction of the body 1, the second direction can be the length direction of the body 1, and the third direction can be the thickness direction of the body 1.
[0032] For example, in the example of Figures 1-7 , the body 1 has a receiving cavity, and a circuit board and a power supply are arranged in the receiving cavity. The care head 2 is mounted on one side of the body 1 in the height direction, and the plurality of electrodes 22 are arranged on the shell 21 and are electrically connected to the circuit board and are uniformly spaced apart in the length direction of the body 1. The recessed portion 211 is arranged on the surface of the shell 21 away from the body 1 (for example, the bottom of the shell 21 in Figure 1 ). In this way, when the user needs to perform skin care on the chin, the chin can be clamped in the recessed portion 211, and the chin is skin cared, the arrangement of the recessed portion 211 increases the contact area between the care head 2 and the chin position, thereby expanding the range of the beauty instrument 100 on the user's face, optimizing the beauty effect of the beauty instrument 100 on the user's face, and the arrangement of the recessed portion 211 enables the electrodes 22 to be closely attached to the chin position of the user, avoiding unnecessary energy loss.
[0033] Specifically, the number of electrodes 22 on the shell 21 can be greater than or equal to six, for example, the number of electrodes 22 can be seven (as shown in Figure 2 ), eleven (as shown in Figure 7 ).
[0034] According to the beauty instrument 100 of the utility model embodiment, the recessed portion 211 is arranged on the shell 21, the range of the beauty instrument 100 on the user's face is expanded, the beauty effect of the beauty instrument 100 on the user's face is optimized, and unnecessary energy loss is avoided.
[0035] Further, in the projection plane of the third direction, the surface of the recessed portion 211 away from the body 1 is a first arc surface 2111, and the curvature radius of the first arc surface 2111 is K1, wherein K1 satisfies: 14.2mm≤K1≤160mm.
[0036] When K1<14.2mm, the curvature radius of the first arc surface 2111 is too small, that is, the radian of the first arc surface 2111 is relatively flat, however, the lower jaw position of the face has obvious concave, when skin care, the first arc surface 2111 with too small curvature is difficult to closely fit with the lower jaw, resulting in that the gap exists between the nursing head 2 and the lower jaw position of the user, the energy of the electrode 22 cannot be effectively transmitted to the lower jaw position, thereby affecting the beauty effect of the beauty instrument 100; when K1>160mm, the curvature radius of the first arc surface 2111 is too large, that is, the first arc surface 2111 is too concave, resulting in that the lower jaw cannot be clamped in the concave part 211, the application range of the beauty instrument 100 is limited, and the concave part 211 can press the lower jaw of the user and cause the user to be uncomfortable, thereby affecting the use experience of the user. Therefore, by setting the curvature radius K1 of the first arc surface 2111 in the range of 14.2mm-160mm, the first arc surface 2111 can be closely fitted with the lower jaw, and unnecessary pressure on the skin of the user caused by the beauty instrument 100 is avoided.
[0037] Further, in the projection plane in the second direction, the side surface of the concave part 211 away from the main body 1 is a second arc surface 2112, and the curvature radius of the second arc surface 2112 is K2, wherein K2 satisfies: 9mm≤K2≤522mm.
[0038] When K2<9mm, the curvature radius of the second arc surface 2112 is too small, that is, the radian of the second arc surface 2112 is relatively flat, when the lower jaw position of the user is clamped in the concave part 211, the second arc surface 2112 is difficult to closely fit with the lower jaw, resulting in that the gap exists between the nursing head 2 and the lower jaw position of the user, the energy of the electrode 22 cannot be effectively transmitted to the lower jaw position, thereby affecting the beauty effect of the beauty instrument 100; when K2>522mm, the curvature radius of the second arc surface 2112 is too large, that is, the second arc surface 2112 is too curved, resulting in that the contact area between the nursing head 2 and the face of the user is small when skin care, thereby the problems of poor contact between the nursing head 2 and the skin or excessive pressing of the skin by the nursing head 2 in some parts are prone to occur, and the operation difficulty is increased. Therefore, by setting the curvature radius K2 of the second arc surface 2112 in the range of 9mm-522mm, the second arc surface 2112 can be closely fitted with the lower jaw, and the operation difficulty is reduced.
[0039] According to some embodiments of the present application, in the projection plane in the third direction, the radian of the first arc surface 2111 is a, wherein a satisfies: 40≤a≤170.
[0040] When ɑ<40°, the curvature of the first arc surface 2111 is too small, that is, the first arc surface 2111 is too concave, which causes the chin to be unable to be clamped in the recessed part 211, limits the application range of the beauty instrument 100, and the protruding positions on both sides of the first arc surface 2111 are too sharp, which may cause unnecessary pressure when the skin of the eye and other relatively fragile parts is cared for, and causes the user's skin to be uncomfortable; when ɑ>170°, the curvature of the first arc surface 2111 is too large, that is, the curvature of the first arc surface 2111 is relatively flat, however, the chin position of the face has a obvious concave, when caring for the skin, the first arc surface 2111 with too small curvature is difficult to closely fit with the chin, which causes a gap between the care head 2 and the chin position of the user, and the energy of the electrode 22 cannot be effectively transmitted to the chin position, thereby affecting the beauty effect of the beauty instrument 100. Therefore, by setting the curvature ɑ of the first arc surface 2111 in the range of 40°-170°, the first arc surface 2111 can be closely fitted with the chin, and unnecessary pressure on the skin of the user caused by the beauty instrument 100 is avoided.
[0041] According to some embodiments of the present application, the shell 21 further comprises: two protruding parts 212, the two protruding parts 212 are respectively connected on both sides of the recessed part 211 in the second direction. In the first direction, one end of each protruding part 212 away from the main body 1 protrudes from one end of the recessed part 211 away from the main body 1.
[0042] For example, in the example of Figure 2 , the two protruding parts 212 are respectively connected on both sides of the recessed part 211 in the second direction, so that the front surface shape of the shell 21 is approximately W-shaped. In this way, when the user needs to care for the chin of the face, the protruding part 212 can help the user to better position, and the user can determine whether the chin position is accurately clamped in the recessed part 211 by feeling the contact between the protruding part 212 and the edge of the face, thereby improving the accuracy of the operation. Moreover, since the protruding part 212 has a small structure and can be closely fitted with the parts such as the sides of the alae nasi of the face that need to be accurately cared for, the application range of the beauty instrument 100 on the face of the user is further expanded, the beauty effect of the beauty instrument 100 on the face of the user is optimized, and the user can rotate the beauty instrument 100 by a small amplitude to make the electrode 22 closely fitted with the skin, thereby further ensuring the comfort of the user during use.
[0043] According to some embodiments of the present application, referring to Figure 2 , in the projection plane in the third direction, one side surface of each protruding part 212 away from the main body 1 is a third arc surface 2121, and the curvature radius of the third arc surface 2121 is K3, wherein K3 satisfies: 20mm≤K3≤160mm.
[0044] When K3<20mm, the curvature radius of the third arc surface 2121 is too small, that is, the third arc surface 2121 is relatively flat, so that the third arc surface 2121 cannot be closely attached to the parts such as the sides of the nose wings that need accurate care, thereby affecting the use effect of the beauty instrument 100; when K3>160mm, the curvature radius of the third arc surface 2121 is too large, that is, the third arc surface 2121 is too sharp, and when the skin of the parts such as the eye is cared for, unnecessary pressure may be caused, the skin is uncomfortable, and the use experience of the user is affected. Therefore, by setting the curvature radius K3 of the third arc surface 2121 in the range of 20mm to 160mm, the third arc surface 2121 can be closely attached to the parts that need accurate care, and the use experience of the user is optimized.
[0045] Specifically, in the projection plane in the second direction, the side surface of each convex part 212 away from the main body 1 is a fourth arc surface 2122, and the curvature radius of the fourth arc surface 2122 is K4, wherein K4 satisfies: 13.88mm≤K4≤66.15mm.
[0046] When K4<13.88mm, the curvature radius of the fourth arc surface 2122 is too small, that is, the fourth arc surface 2122 is relatively flat, and when the skin of the parts such as the sides of the nose wings that need accurate care is cared for, the fourth arc surface 2122 is difficult to be closely attached to these parts, so that there is a gap between the care head 2 and the skin of the face of the user, the energy of the electrode 22 cannot be effectively transmitted to these parts, thereby affecting the beauty effect of the beauty instrument 100; when K4>66.15mm, the curvature radius of the fourth arc surface 2122 is too large, that is, the fourth arc surface 2122 is too curved, so that the contact area between the care head 2 and the face of the user is small when the skin is cared for, thereby the care head 2 is prone to poor contact with the skin, or the care head 2 excessively extrudes the skin in some parts, and the operation difficulty is increased. Therefore, by setting the curvature radius K4 of the fourth arc surface 2122 in the range of 13.88mm to 66.15mm, the second arc surface 2112 can be closely attached to the parts such as the sides of the nose wings that need accurate care, and the operation difficulty is reduced.
[0047] According to some embodiments of the present application, in the projection plane in the third direction, the curvature radius of the third arc surface 2121 is β, wherein β satisfies: 90≤β≤160.
[0048] When β<90°, the curvature of the third arc surface 2121 is too small, that is, the third arc surface 2121 is too sharp, which may cause unnecessary pressure when the skin around the eyes and other relatively fragile parts are cared for, causing the skin to be uncomfortable and affecting the user's experience; when β>160°, the third arc surface 2121 cannot be closely attached to the parts that need to be accurately cared for, such as the sides of the nose, thereby affecting the use effect of the beauty instrument 100. Therefore, by setting the curvature β of the third arc surface 2121 in the range of 90°-160°, the third arc surface 2121 can be closely attached to the parts that need to be accurately cared for, and the user's experience is optimized.
[0049] According to some embodiments of the present application, at least one side surface of each electrode 22 in the second direction is an arc surface. Wherein, one side surface of each electrode 22 in the second direction is an arc surface (not shown in the figure); or, both side surfaces of each electrode 22 in the second direction are arc surfaces (as shown in the figure). In this way, the gap between the adjacent two electrodes 22 at each position is kept consistent, the regularity of the arrangement of the plurality of electrodes 22 on the shell 21 is ensured, and the appearance of the care head 2 is improved. Figure 2
[0050] And / or, the plurality of electrodes 22 includes a first sub-electrode 221 and a second sub-electrode 222, the first sub-electrode 221 is arranged adjacent to the recess 211, and the second sub-electrode 222 is arranged adjacent to the edge of the shell 21, and at least one side surface of the first sub-electrode 221 in the second direction protrudes in the direction towards the center of the shell 21. Wherein, one side surface of the first sub-electrode 221 in the second direction protrudes in the direction towards the center of the shell 21 (not shown in the figure); or, both side surfaces of the first sub-electrode 221 in the second direction protrude in the direction towards the center of the shell 21 (as shown in the figure), at this time, the shape of the first sub-electrode 221 is approximately a crescent shape protruding towards the center of the shell 21. Figure 6
[0051] And / or, at least one side surface of the second sub-electrode 222 in the second direction protrudes in the direction away from the center of the shell 21. Wherein, one side surface of the second sub-electrode 222 in the second direction protrudes in the direction away from the center of the shell 21 (not shown in the figure); or, both side surfaces of the second sub-electrode 222 in the second direction protrude in the direction away from the center of the shell 21 (as shown in the figure), at this time, the shape of the second sub-electrode 222 is approximately a crescent shape protruding towards the center of the shell 21, that is, the protruding direction of the second sub-electrode 222 is opposite to that of the first sub-electrode 221. In this way, the care head 2 has a better visual effect. Figure 6
[0052] According to some embodiments of the utility model, the shell 21 is a transparent shell 21. The main body 1 is internally provided with a light therapy assembly, the light therapy assembly is connected with the circuit board of the main body 1, and the light emitted by the light therapy assembly is emitted through the transparent shell 21. Among them, the light therapy assembly can emit light of different colors, through the cooperation of light and electrode 22, the beauty instrument 100 can realize the functions of oil control, inflammation reduction, collagen regeneration promotion, redness reduction, sensitive skin soothing, skin red mark or erythema improvement, redness relief, anti-wrinkle and anti-aging, freckle reduction and skin color lightening.
[0053] It should be noted that, Figures 1-7 The beauty instrument 100 shown is an appearance part and does not include internal functional components, i.e., the circuit board, the light therapy assembly and the like are not shown in the drawings.
[0054] According to some embodiments of the utility model, as Figure 5 As shown in the figure, the shell 21 includes an outer shell 213 and an inner shell 214, and the inner shell 214 is arranged on the inner side of the outer shell 213 in the first direction. In this way, the structural stability of the shell 21 of the beauty instrument 100 is increased, and in daily use, the outer shell 213 can withstand physical impact and friction from the outside, protecting the inner shell 214 and the electrode 22 and other precision components inside, thereby ensuring the normal use of the beauty instrument 100.
[0055] In the projection plane in the second direction, the side surface of the inner shell 214 adjacent to the outer shell 213 is a fifth arc surface 2141, and the curvature radius of the fifth arc surface 2141 is K5, wherein K5 satisfies: 11mm≤K5≤200mm.
[0056] When K5<11mm, the curvature radius of the fifth arc surface 2141 is too small, that is, the radian of the fifth arc surface 2141 is relatively flat, which may not be compatible with the shape of the first sub-electrode 221 and the second sub-electrode 222, resulting in poor visual effect of the care head 2; when K5>200mm, the curvature radius of the fifth arc surface 2141 is too large, that is, the fifth arc surface 2141 is too curved, which may cause the shape of the accommodating cavity of the shell 21 to be too irregular, and the circuit board and the power component and other components cannot be reasonably placed, thereby causing unreasonable use of the accommodating cavity, and when the beauty instrument 100 is impacted or pressed from the outside, the inner shell 214 may not effectively disperse external force, causing the internal components to be easily damaged, thereby shortening the service life of the beauty instrument 100. Therefore, by setting the curvature radius K5 of the fifth arc surface 2141 in the range of 11mm~200mm, the appearance aesthetics of the care head 2 is ensured, and the space of the accommodating cavity can be reasonably utilized, thereby prolonging the service life of the beauty instrument 100.
[0057] Other configurations and operations of the beauty instrument 100 according to the embodiments of the present application are known to those skilled in the art, and are not described in detail herein.
[0058] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0059] In the description of the present application, it should be understood that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0060] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the exemplary description of the above terms does not necessarily refer to the same embodiment or example.
[0061] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.
Claims
1. A cosmetic device, characterized by, The application relates to a nursing head, comprising: a main body having a first direction, a second direction and a third direction which are orthogonal to each other; a nursing head provided on one side of the main body in the first direction, the nursing head comprising a shell and a plurality of electrodes, each of the plurality of electrodes being provided on the shell and spaced apart along the second direction, and each of the electrodes extending along the third direction; wherein, in the first direction, part of the shell is recessed towards the main body to form a recess.
2. The cosmetic device of claim 1, wherein, In a projection plane of the third direction, a side surface of the recess away from the main body is a first arc surface, and a radius of curvature of the first arc surface is K1, wherein the K1 satisfies 14.2mm<=K1<=160mm.
3. The cosmetic device of claim 1, wherein, In a projection plane of the second direction, a side surface of the recess away from the main body is a second arc surface, and a radius of curvature of the second arc surface is K2, wherein the K2 satisfies 9mm<=K2<=522mm.
4. The cosmetic device of claim 2, wherein, In the projection plane of the third direction, an arc of the first arc surface is a, wherein the a satisfies 40<=a<=170.
5. The cosmetic device according to any of claims 1-4, wherein, The shell further comprises: two protrusions connected to two sides of the recess in the second direction, respectively; in the first direction, an end of each of the protrusions away from the main body protrudes from an end of the recess away from the main body.
6. The cosmetic device of claim 5, wherein, In the projection plane of the third direction, a side surface of each of the protrusions away from the main body is a third arc surface, and a radius of curvature of the third arc surface is K3, wherein the K3 satisfies 20mm<=K3<=160mm.
7. The cosmetic device of claim 5, wherein, In the projection plane of the second direction, a side surface of each of the protrusions away from the main body is a fourth arc surface, and a radius of curvature of the fourth arc surface is K4, wherein the K4 satisfies 13.88mm<=K4<=66.15mm.
8. The cosmetic device of claim 6, wherein, In the projection plane of the third direction, an arc of the third arc surface is beta, wherein the beta satisfies 90<=beta<=160.
9. The cosmetic device of claim 1, wherein, each of the electrodes has at least one side surface in the second direction which is an arc surface; and / or the plurality of electrodes comprises a first sub-electrode and a second sub-electrode, the first sub-electrode is arranged adjacent to the recess, the second sub-electrode is arranged adjacent to an edge of the shell, and the at least one side surface of the first sub-electrode in the second direction protrudes in a direction towards the center of the shell; and / or the at least one side surface of the second sub-electrode in the second direction protrudes in a direction away from the center of the shell.
10. The cosmetic device of claim 1, wherein, the shell is a transparent shell; a light therapy assembly is arranged in the main body, the light therapy assembly is connected to a circuit board of the main body, and light emitted by the light therapy assembly is emitted through the transparent shell.
11. The cosmetic device of claim 1, wherein, the shell comprises an outer shell and an inner shell, and the inner shell is arranged on the inner side of the outer shell in the first direction; in the projection plane of the second direction, a side surface of the inner shell adjacent to the outer shell is a fifth arc surface, and a radius of curvature of the fifth arc surface is K5, wherein the K5 satisfies 11mm<=K5<=200mm.