Beauty instrument

Abstract

The utility model discloses a beauty instrument. The beauty instrument comprises an electrode assembly, the electrode assembly comprises a first electrode group and a second electrode group which are distributed at intervals, the first electrode group comprises a first electrode and at least two second electrodes distributed on the periphery of the first electrode, and each second electrode and the first electrode form a first electrode pair; a first side surface and a second side surface which are oppositely arranged in each first electrode pair are two planes which are parallel to each other or two curved surfaces which are the same in curvature and bending direction; the second electrode group comprises a third electrode and at least two fourth electrodes distributed on the periphery of the third electrode, and each fourth electrode and the third electrode form a second electrode pair; and a third side surface and a fourth side surface which are oppositely arranged in each second electrode pair are two planes which are parallel to each other or two curved surfaces which are the same in curvature and bending direction. According to the utility model, the distribution mode of the electrodes can increase the stimulation area of the micro-current and increase the distribution uniformity of the micro-current.

Description

Technical Field

[0001] The utility model relates to the technical field of skin care equipment, in particular to a beauty instrument. Background Art

[0002] A beauty instrument provided by the related technology includes an electrode assembly, which includes a plurality of electrodes distributed at intervals. The plurality of electrodes form a plurality of electrode pairs, and the electrode pairs can output microcurrents to the skin, thereby achieving a beauty effect on the skin.

[0003] However, the above-mentioned beauty instrument still has the following shortcomings in specific applications: due to unreasonable distribution of electrodes, the stimulation area of ​​the electrode pair is relatively small, and the distribution uniformity of the microcurrent is also relatively poor. Utility Model Content

[0004] The first purpose of the utility model is to provide a beauty instrument, which aims to solve the technical problems of small electrode stimulation area and poor micro-current distribution uniformity in the beauty instrument in the related art.

[0005] In order to achieve the above object, the solution provided by the utility model is:

[0006] A shell, one end of which forms a beauty head;

[0007] An electrode assembly, wherein at least a portion of the electrode assembly is exposed outside the beauty head, and is used to output microcurrent to the skin;

[0008] The electrode assembly comprises a first electrode group and a second electrode group which are spaced apart from each other, the first electrode group comprises a first electrode and at least two second electrodes which are spaced apart from each other, the polarity of the first electrode is opposite to that of the second electrode, the first electrode has at least two first side surfaces which respectively face the at least two second electrodes, the second electrode has a second side surface which faces the first electrode, each of the second electrodes respectively forms a first electrode pair with the first electrode, and the first side surface and the second side surface which are arranged opposite to each other in each of the first electrode pairs are two parallel planes or two curved surfaces with the same curvature and bending direction;

[0009] The second electrode group includes a third electrode and at least two fourth electrodes distributed around the third electrode, the polarity of the third electrode is opposite to that of the fourth electrode, the third electrode has at least two third side surfaces facing the at least two fourth electrodes respectively, the fourth electrode has a fourth side surface facing the third electrode, each of the fourth electrodes forms a second electrode pair with the third electrode respectively, and the third side surface and the fourth side surface arranged opposite to each other in each second electrode pair are two parallel planes or two curved surfaces with the same curvature and bending direction.

[0010] In some embodiments, the outer side surface of the first electrode includes at least two first side surfaces with different curvatures and bending directions, at least two second side surfaces facing the at least two first side surfaces have different curvatures and bending directions, and the first side surface and the second side surface facing each other in each first electrode pair are curved surfaces with the same bending directions; or

[0011] The outer side surface of the first electrode is a first cylindrical surface, the second side surfaces of the at least two second electrodes are spaced apart and distributed on the second cylindrical surface, the second cylindrical surface is located at the periphery of the first cylindrical surface, and the central axis of the second cylindrical surface is coaxial with the central axis of the first cylindrical surface, and the first side surface and the second side surface facing each other in each first electrode pair are two curved surfaces with the same bending direction; or,

[0012] The outer side surface of the first electrode is a first polygon, the second side surfaces of the at least two second electrodes are spaced apart and distributed on a second polygon located outside the first electrode, and the first side surface and the second side surface facing each other in each first electrode pair are two parallel planes.

[0013] In some embodiments, the number of the first electrode is one, the number of the second electrodes is three, the outer side surface of the first electrode includes three first side surfaces connected end to end in sequence, wherein at least two of the first side surfaces have different curvatures and bending directions, and the first side surface and the second side surface facing each other in each first electrode pair are curved surfaces with the same bending directions; and / or,

[0014] The orthographic projection area of ​​each of the second electrodes on the beauty head is equal.

[0015] In some embodiments, the at least two fourth electrodes include two fourth electrodes respectively arranged on opposite sides of the third electrode, the third electrode forms two third side surfaces arranged back to back and facing the two fourth electrodes respectively, and the third side surface and the fourth side surface arranged facing each other in the second electrode pair formed by either of the two fourth electrodes and the third electrode are two parallel planes.

[0016] In some embodiments, the number of the third electrode is one, the number of the fourth electrodes is two, and the two fourth electrodes are symmetrically arranged on two opposite sides of the first electrode.

[0017] In some embodiments, the outer side surface of the third electrode further includes a fifth side surface and a sixth side surface, the fifth side surface is a curved surface or a plane connected to one end of the two third side surfaces, and the sixth side surface is a curved surface or a plane connected to the other end of the two third side surfaces;

[0018] One of the fifth side surface and the sixth side surface is disposed between the third side surface and the first pole group.

[0019] In some embodiments, the third electrode is formed with a hollow inner hole, the two third side surfaces are respectively arranged on two opposite sides of the hollow inner hole, and the fifth side surface and the sixth side surface are respectively arranged on two other opposite sides of the hollow inner hole; and / or,

[0020] The third side surface and the fourth side surface facing each other in each second electrode pair are two planes parallel to each other.

[0021] In some embodiments, the spacing between the first side surface and the second side surface facing each other in all the first electrode pairs is equal; and / or,

[0022] The distances between the third side surfaces and the fourth side surfaces facing each other in all the second electrode pairs are equal.

[0023] In some embodiments, the spacing between the first side and the second side facing each other in all the first electrode pairs is between 1 cm±0.3 cm, and the spacing between the third side and the fourth side facing each other in all the second electrode pairs is between 1 cm±0.3 cm; and / or,

[0024] The orthographic projection area of ​​each of the first electrodes on the beauty head is less than or equal to 1.5 cm 2 The orthographic projection area of ​​each of the second electrodes on the beauty head is less than or equal to 1.5 cm 2 The orthographic projection area of ​​each of the third electrodes on the beauty head is less than or equal to 1.5 cm 2 The orthographic projection area of ​​each of the fourth electrodes on the beauty head is less than or equal to 1.5 cm 2 .

[0025] In some embodiments, the beauty head includes a first edge, a second edge, a third edge and a fourth edge connected end to end in sequence, the first edge and the third edge are arranged opposite to each other at intervals, the second edge and the fourth edge are arranged opposite to each other at intervals, and the size of the second edge is smaller than the size of the fourth edge;

[0026] The first edge and the third edge are respectively provided with a fourth electrode;

[0027] The first electrode group is arranged between the third electrode and the second edge.

[0028] In the technical solution of this embodiment, an electrode assembly is arranged on the beauty head of the shell to generate microcurrent to stimulate the skin, promote blood circulation acceleration and cell metabolism, and thus achieve a beauty effect. The electrode assembly is arranged to include a first electrode group and a second electrode group, so that the first electrode group and the second electrode group can be used to output microcurrent to skin with different contours, respectively, to meet the beauty needs of different parts. In addition, the utility model, by arranging the two facing sides of the two electrodes in the electrode pair as two parallel planes or two curved surfaces with the same curvature and bending direction, the electrode pair forms a large area and uniformly distributed electric field line, so that the electrode pair can provide a large area and uniform microcurrent stimulation to the skin, thereby helping to improve the beauty effect and beauty efficiency of the beauty instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0030] Figure 1 This is a schematic diagram of the overall structure of a beauty instrument in one embodiment of the utility model;

[0031] Figure 2 This is a schematic diagram of the overall structure of a beauty instrument in one embodiment of the utility model;

[0032] Figure 3 for Figure 2 A magnified schematic diagram of center A.

[0033] Description of Figure Numbers:

[0034] 100, shell; 120, beauty head; 121, first edge; 122, second edge; 123, third edge; 124, fourth edge; 200, electrode assembly; 210, first electrode group; 211, first electrode; 211a, first side; 212, second electrode; 212a, second side; 220, second electrode group; 223, third electrode; 223a, third side; 223b, fifth side; 223c, sixth side; 226, hollow inner hole; 240, fourth electrode; 240a, fourth side. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0037] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or may be indirectly connected to the other element through an intermediate element.

[0038] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0039] like Figure 1 As shown, Figure 1 Schematic diagram of the overall structure of a beauty instrument in one embodiment of the utility model.

[0040] The beauty instrument provided by the embodiment of the utility model comprises:

[0041] A housing 100, one end of which forms a beauty head 120;

[0042] The electrode assembly 200 is at least partially exposed outside the beauty head 120 to output microcurrent to the skin;

[0043] The electrode assembly 200 includes a first electrode group 210 and a second electrode group 220 that are spaced apart. The first electrode group 210 includes a first electrode 211 and at least two second electrodes 212 that are distributed around the first electrode 211. The polarity of the first electrode 211 is opposite to that of the second electrode 212. The first electrode 211 has at least two first side surfaces 211a facing at least two second electrodes 212, respectively. The second electrode 212 has a second side surface 212a facing the first electrode 211. Each second electrode 212 forms a first electrode pair with the first electrode 211, and the first side surface 211a and the second side surface 212a that are disposed opposite to each other in each first electrode pair are two parallel planes or two curved surfaces with the same curvature and bending direction.

[0044] The second electrode group 220 includes a third electrode 223 and at least two fourth electrodes 240 distributed around the third electrode 223. The polarity of the third electrode 223 is opposite to that of the fourth electrode 240. The third electrode 223 has at least two third side surfaces 223a facing at least two fourth electrodes 240 respectively. The fourth electrode 240 has a fourth side surface 240a facing the third electrode 223. Each fourth electrode 240 forms a second electrode pair with the third electrode 223 respectively, and the third side surface 223a and the fourth side surface 240a arranged opposite to each other in each second electrode pair are two parallel planes or two curved surfaces with the same curvature and bending direction.

[0045] In this embodiment, the shell 100 serves as the main structure of the beauty instrument, providing the appearance of the device and protecting the internal components. The shape of the shell 100 is very important for the beauty instrument, which not only affects the appearance of the device and the user experience, but also is related to the functionality and effect of the device.

[0046] In specific applications, the housing 100 can be designed according to the user's hand shape and holding habits, which can reduce fatigue during use and improve the accuracy and comfort of operation.

[0047] In this embodiment, the electrode assembly 200 mainly includes a first electrode group 210 and a second electrode group 220, which are mainly used to generate microcurrent to stimulate the skin, promote blood circulation, and accelerate cell metabolism, thereby achieving a cosmetic effect.

[0048] In order to ensure uniform distribution and effective output of current, in this embodiment, the sides of the first electrode 211 and the second electrode 212 of the first electrode group 210 (that is, the first side 211a and the second side 212a) are set to two parallel planes or two curved surfaces with the same curvature and bending direction. When the electrode sides are parallel or have the same curvature, the electric field distribution between them is more uniform. This uniform electric field can provide more consistent microcurrent stimulation, ensuring that each skin area can receive the same degree of beauty. At the same time, the uniform electric field distribution helps to improve the stimulation effect, making the use of beauty equipment more effective.

[0049] In addition, the parallel or uniformly curvatured electrode sides reduce the concentration of current on the skin, lowering the risk of over-stimulation, thereby improving the safety of beauty treatments, and reducing skin discomfort, making users feel more comfortable during use.

[0050] In this embodiment, the second electrode group 220 mainly includes a third electrode 223 and a fourth electrode 240. Exemplarily, the third electrode 223 can be one, which is set on the side of the beauty head 120 that acts on the skin, and the fourth electrode 240 is set to two, and the fourth electrode 240 is distributed on the periphery of the third electrode 223. Among them, the third side surface 223a of the third electrode 223 and the fourth side surface 240a of the fourth electrode 240 can be set to be parallel planes or two curved surfaces with the same curvature and bending direction. When the parallel or curvature and bending direction of the two electrode sides are the same, they can provide a uniform electric field distribution, thereby ensuring the uniformity of stimulation. This means that each skin area can receive the same intensity of beauty treatment, which improves the consistency and predictability of the beauty effect. At the same time, it can reduce skin irritation and discomfort, making the user experience more comfortable.

[0051] During the use of the beauty instrument of this embodiment, the operator turns on the device and adjusts the required beauty mode and the appropriate current size (microcurrent is generated, and there is no danger even if the current is adjusted to the maximum, but the degree of stimulation that the user's skin can accept varies, so it needs to be adjusted to avoid a bad experience); after debugging is completed, the beauty head 120 can be brought into contact with the skin for beauty treatment. In this process, some gel or essence with whitening effect can be applied to the beauty head 120 and / or the skin; on the one hand, it can reduce the friction between the beauty head 120 and the skin, making the push smoother, and on the other hand, it can increase the conductivity to ensure that the microcurrent stimulates the skin to obtain a better beauty effect. At the same time, due to the design of the first electrode pair and the second electrode pair, the current is distributed very evenly on the skin, and the skin is stimulated by the uniform microcurrent, blood circulation is promoted, and cell metabolism is accelerated, thereby achieving a beauty effect.

[0052] In summary, when the sides of the same group of electrodes are set to be parallel or have the same curvature and bending direction, and the sides of the two electrodes are parallel or have the same curvature, the electric field lines from one electrode to the other will be evenly distributed. This is because the electric field lines are always perpendicular to the electrode surface, and between two parallel or curvature-identical surfaces, the electric field lines will not gather or disperse, and the potential difference (voltage) at each point is the same. This means that the current can flow evenly on the surface without being concentrated at the edges or corners.

[0053] In the technical solution of this embodiment, an electrode assembly 200 is provided on the beauty head 120 of the housing 100 to generate microcurrent to stimulate the skin, promote blood circulation acceleration and cell metabolism, and thus achieve a beauty effect. The electrode assembly 200 is provided to include a first electrode group 210 and a second electrode group 220, so that the first electrode group 210 and the second electrode group 220 can be used to output microcurrent to skins with different contours, respectively, to meet the beauty needs of different parts. In addition, the utility model, by setting the two facing sides of the two electrodes in the electrode pair as two parallel planes or two curved surfaces with the same curvature and bending direction, the electrode pair forms a large area and uniformly distributed electric field line, so that the electrode pair can provide a large area and uniform microcurrent stimulation to the skin, thereby helping to improve the beauty effect and beauty efficiency of the beauty instrument.

[0054] Furthermore, the microcurrent output by the electrode assembly 200 may be alternating current. Alternating current refers to a current whose direction changes periodically over time, and the average current in a change cycle is zero. Unlike direct current, the direction of alternating current changes over time, while direct current does not change periodically. Compared to direct current, the electrode assembly 200 in this embodiment uses alternating current output, which can effectively eliminate the adverse phenomenon of skin damage and polarization caused by the long-term action of a fixed current on the skin.

[0055] As an embodiment, the microcurrent output by the electrode assembly 200 is an alternating current greater than 0uA and less than or equal to 1000uA. Microcurrent is a current at the microampere (i.e., uA) level, and its size is close to the natural bioelectricity of the human body. The current safety limit acceptable to the human body is 50mA, and the microcurrent of the beauty instrument provided in this embodiment is far lower than the limit required by the safety standard, which fully guarantees the safety and reliability of the product. When the electrode assembly 200 acts on the skin through microcurrent, the microcurrent transmits gentle electric waves, penetrates the skin tissue, is introduced into the skin, reaches the dermis, stimulates the electromagnetic field of the skin, and promotes the production of ATP (ATP is the abbreviation of adenosine triphosphate, which is an unstable high-energy compound composed of 1 molecule of adenine, 1 molecule of ribose and 3 molecules of phosphate groups. It releases a large amount of energy when hydrolyzed and is the most direct source of energy in the body), thereby promoting collagen production, improving skin vitality, and promoting the skin's absorption of beauty products or medical products. In addition, microcurrent can open the intercellular gaps of the skin and increase cell permeability, allowing beauty products or medical products to better penetrate into the deep layers of the skin, allowing beauty products or medical products to have better effects.

[0056] As for the shape setting of the outer side of the electrode and the shape of the electrode, please refer to Figure 2 In this embodiment, the outer side surface of the first electrode 211 includes at least two first side surfaces 211a with different curvatures and bending directions, and the curvatures and bending directions of at least two second side surfaces 212a facing the at least two first side surfaces 211a are different. The first side surface 211a and the second side surface 212a arranged opposite to each other in each first electrode pair are curved surfaces with the same bending directions.

[0057] Alternatively, the outer side surface of the first electrode 211 is a first cylindrical surface, and the second side surfaces 212a of at least two second electrodes 212 are spaced apart on the second cylindrical surface, the second cylindrical surface is located at the periphery of the first cylindrical surface, and the central axis of the second cylindrical surface is coaxial with the central axis of the first cylindrical surface, and the first side surface 211a and the second side surface 212a that are arranged opposite to each other in each first electrode pair are curved surfaces with the same bending direction.

[0058] Alternatively, the outer side surface of the first electrode 211 is a first polygon, and the second side surfaces 212a of at least two second electrodes 212 are spaced apart and distributed on the second polygon located outside the first electrode 211, and the first side surface 211a and the second side surface 212a arranged opposite to each other in each first electrode pair are two parallel planes.

[0059] In this embodiment, the outer side surface of the first electrode 211 can be set to at least two first side surfaces 211a with different curvatures and bending directions, and the first side surface 211a and the second side surface 212a disposed opposite to each other in the first electrode pair are two curved surfaces with the same bending direction. With the first electrode 211 as the center, the second side surface 212a of the second electrode 212 is an arc, and the arc has the same bending direction and curvature as the first side surface 211a of the first electrode 211; in this way, the distribution of the electric field can be adjusted according to the specific shape of the beauty area, so that the electric field can cover every part of the skin more accurately, especially the area with curved surface or irregular shape.

[0060] In another embodiment, the outer side surface of the first electrode 211 can be set as a first cylindrical surface, and then the second side surfaces 212a of at least two second electrodes 212 are spaced and distributed on the second cylindrical surface, and the central axis of the second cylindrical surface is coaxial with the central axis of the first cylindrical surface. That is to say, in this embodiment, the first electrode 211 is still the center, at least two second electrodes 212 are arranged around the first electrode, and the central axis of the second electrode 212 is coaxial with the central axis of the first cylindrical surface. Due to the symmetry of the cylindrical surface, the electric field lines are more evenly distributed between the electrodes, thereby providing more consistent micro-current stimulation.

[0061] In this embodiment, since the central axes of the first electrode 211 and the second electrode 212 are coaxial, the current transfer path between the electrodes is a straight line, which helps to reduce energy loss during current transfer and improve beauty efficiency.

[0062] In another embodiment, the outer side surface of the first electrode 211 can be designed as a first polygon, and the second side surfaces 212a of at least two second electrodes 212 are distributed on the second polygon located outside the first electrode 211. The first side surface 211a and the second side surface 212a disposed opposite to each other in each first electrode pair are designed as two mutually parallel planes. With such a configuration, the current transfer path between the parallel polygonal electrodes is straight, which helps the current to flow evenly and reduces the possibility of current concentration at the electrode edge.

[0063] In summary, the design of the side shape of the electrode optimizes the distribution and output of the current, improves the beauty effect, and also improves the user experience and the safety of the device. This design also has good adaptability and can meet the diversity of different users and beauty needs. In addition, the distribution of the first electrode group 210 can adapt to skin surfaces with different curvatures, whether flat or curved, it can maintain good contact between the electrode and the skin, improving the adaptability and flexibility of beauty.

[0064] Furthermore, the number of the first electrode 211 is one, the number of the second electrodes 212 is three, and the outer side surface of the first electrode 211 includes three first side surfaces 211a connected end to end in sequence, wherein at least two first side surfaces 211a have different curvatures and bending directions, and the first side surface 211a and the second side surface 212a arranged opposite to each other in each first electrode pair are curved surfaces with the same bending directions.

[0065] The orthographic projection area of ​​each second electrode 212 on the beauty head 120 is equal.

[0066] In this embodiment, the first electrode 211 serves as the central electrode of the first electrode group 210 and has three first side surfaces 211a connected end to end in sequence. The curvatures and bending directions of these side surfaces are different, and they can adapt to different skin surfaces and beauty needs.

[0067] There are three second electrodes 212 , and the second side surface 212 a of each second electrode 212 corresponds to the corresponding first side surface 211 a of the first electrode 211 , forming three electrode pairs.

[0068] In addition to the above distribution, there are other distribution modes, for example, the second electrodes 212 can be symmetrically distributed around the first electrode to provide a more uniform electric field. Of course, the second electrodes 212 can also be asymmetrically distributed according to a specific beauty area to provide targeted beauty.

[0069] In this embodiment, by adjusting the distribution of the second electrode 212, a beauty program can be customized according to the specific needs of the user, thereby improving the pertinence and effect of beauty treatment. This distribution combination of electrodes optimizes the distribution and output of current, improves the beauty effect, and also improves the user experience and applicability of the device.

[0070] Furthermore, the orthographic projection area of ​​each second electrode 212 on the beauty head 120 is equal, and the current is more evenly distributed on the skin, ensuring the uniform distribution of stimulation, which can further improve the consistency of the beauty effect.

[0071] Continue reading Figure 1 In this embodiment, at least two fourth electrodes 240 include two fourth electrodes 240 respectively arranged on opposite sides of the third electrode 223, and the third electrode 223 is formed with two third side surfaces 223a arranged back to back and facing the two fourth electrodes 240 respectively, and the third side surface 223a and the fourth side surface 240a arranged opposite to each other in the second electrode pair formed by any one of the two fourth electrodes 240 and the third electrode 223 are two parallel planes.

[0072] In the second electrode group 220 of the present embodiment, the third electrode 223 is used as the central electrode, and then two fourth electrodes 240 may be arranged on one side of the central electrode, and the third side surface 223a and the fourth side surface 240a arranged opposite to each other in the second electrode pair formed by the third electrode 223 are two mutually parallel planes. In the present embodiment, the side surfaces of the third electrode 223 and the two fourth electrodes 240 are designed as mutually parallel planes, and such a structure helps to form a uniform electric field between the electrodes. The electric field lines are distributed equidistantly between the parallel planes, thereby ensuring the uniform transmission of the current on the skin.

[0073] The uniform electric field helps to provide effective microcurrent stimulation, promote blood circulation and cell metabolism, thereby achieving beauty effects, as well as helping to improve the consistency and predictability of beauty effects. In addition, this design is suitable for large areas of skin because it can ensure uniform current distribution even on large beauty areas.

[0074] The second electrode group 220 in this embodiment optimizes the distribution and output of the current, improves the beauty effect, and also improves the user experience and the safety of the device. This design also has good adaptability and can meet the diversity of different users and beauty needs, especially when a large area of ​​skin needs to be covered, it can provide a uniform and effective beauty effect.

[0075] Furthermore, we can Figure 1 As can be seen from the figure, the number of the third electrode 223 is one, the number of the fourth electrode 240 is two, and the two fourth electrodes 240 are symmetrically arranged on the two opposite sides of the first electrode 211. It should be noted that the third electrode 223 in this embodiment can be in the form of a strip, and the two sides of the strip are directly opposite and parallel to the fourth side surfaces 240a of the two fourth electrodes 240. When the two opposite electrode side surfaces are planes parallel to each other, the electric field distribution between them will be uniform. This is because the electric field lines are equidistantly distributed between the parallel planes, thereby ensuring the uniformity of the electric field.

[0076] See also Figure 1 and 2 , Figure 1 This is a schematic diagram of the overall structure of a beauty instrument in one embodiment of the utility model. Figure 2 Schematic diagram of the overall structure of a beauty instrument in one embodiment of the utility model.

[0077] In this embodiment, the outer side surface of the third electrode 223 further includes a fifth side surface 223b and a sixth side surface 223c, the fifth side surface 223b is a curved surface or a plane connected to one end of the two third side surfaces 223a, and the sixth side surface 223c is a curved surface or a plane connected to the other end of the two third side surfaces 223a;

[0078] One of the fifth side surface 223 b and the sixth side surface 223 c is disposed between the third side surface 223 a and the first pole group 210 .

[0079] In this embodiment, the outer side surface of the third electrode 223 also includes a fifth side surface 223b and a sixth side surface 223c, wherein the fifth side surface 223b and the sixth side surface 223c can be configured to be connected end to end with the third side surface 223a, that is, integrally formed; the reason for using an integrally formed electrode is that it usually has higher structural strength and stability because they have no seams or connection points, which reduces the risk of breakage or damage, and because it is continuous, the current can be more evenly distributed on the surface of the electrode, which can improve the uniformity and effect of beauty.

[0080] Further, the fifth side 223b may be a curved surface connected to one end of the two third side surfaces 223a, and the sixth side 223c may be a plane connected to the other end of the two third side surfaces 223a; of course, the sixth side 223c may be a curved surface connected to one end of the two third side surfaces 223a, and the fifth side 223b may be a plane connected to the other end of the two third side surfaces 223a. Alternatively, the fifth side 223b and the sixth side 223c may be set to the same curved surface or plane. That is, by selecting different curved surfaces or planes, the electrode can better adapt to different areas and curvatures of the skin, providing more personalized beauty. Moreover, sides of different shapes can affect the distribution of the electric field, making it more suitable for specific beauty purposes, such as concentrated stimulation or wide coverage.

[0081] See also Figure 2 and Figure 3 , Figure 2 This is a schematic diagram of the overall structure of a beauty instrument in one embodiment of the utility model. Figure 3 for Figure 2 A magnified schematic diagram of center A.

[0082] In this embodiment, the third electrode 223 forms a hollow inner hole 226 , the two third side surfaces 223 a are respectively disposed on two opposite sides of the hollow inner hole 226 , and the fifth side surface 223 b and the sixth side surface 223 c are respectively disposed on two other opposite sides of the hollow inner hole 226 .

[0083] The third side surface 223a and the fourth side surface 240a disposed opposite to each other in each second electrode pair are two parallel planes.

[0084] In this embodiment, the formation of the hollow inner space can be a predetermined shape reserved during the integral molding process of the third electrode 223, or it can be formed by stamping or cutting at a later stage, and there is no special limitation here. Among them, the design of the hollow inner hole 226 of the third electrode 223 can adopt a variety of shapes, such as circular, elliptical, polygonal, etc.; the circular hollow inner space can provide a uniform electric field distribution, which is suitable for beauty treatments that require uniform stimulation in a circular area. Elliptical and polygonal shapes are suitable for longer or wider beauty areas and can provide a wider coverage.

[0085] During use of the cosmetic method of this embodiment, when current passes through the third electrode 223, the shape of the hollow inner hole 226 helps to guide the current to be evenly distributed to each second electrode 212. Since the third side surface 223a and the fourth side surface 240a are parallel planes, the current is uniform when it is transmitted between these planes, ensuring uniform stimulation of the current on the skin.

[0086] In this embodiment, a hollow inner hole 226 is formed in the third electrode 223, which helps to form a uniform electric field between the electrodes, providing more effective beauty treatment. At the same time, the uniform current distribution increases the safety of use, avoids the concentration of current in a specific area, and reduces the risk of overheating or overstimulation.

[0087] The uniform distribution of current can be adjusted by starting with the distance between the side surfaces. For example, in some embodiments, the distances between the first side surfaces 211a and the second side surfaces 212a facing each other in all first electrode pairs are equal; and / or,

[0088] The distances between the third side surface 223a and the fourth side surface 240a facing each other in all the second electrode pairs are equal.

[0089] In this embodiment, when the distance between the two sides decreases, the electric field strength increases, and the current density also increases, which helps to provide more concentrated stimulation in a smaller area. Conversely, when the distance increases, the electric field strength decreases and the current density decreases, which helps to provide more uniform stimulation in a wider area.

[0090] In the embodiment, it is preferred that the spacing between the first side surface 211a and the second side surface 212a is equal, and the spacing between the third side surface 223a and the fourth side surface 240a disposed opposite to each other in the second electrode pair is equal. When the spacing between the opposite sides disposed in all electrode pairs is equal, the current can be ensured to be evenly distributed in the entire beauty area, which is crucial to ensure the consistency of the beauty effect. At the same time, the uniform spacing makes the current distribution more predictable, thereby improving the repeatability of beauty treatment and the predictability of the effect.

[0091] More specifically, the distance between the first side surface 211a and the second side surface 212a facing each other in all first electrode pairs is within 1 cm±0.3 cm, and the distance between the third side surface 223a and the fourth side surface 240a facing each other in all second electrode pairs is within 1 cm±0.3 cm.

[0092] The orthographic projection area of ​​each first electrode 211 on the beauty head 120 is less than or equal to 1.5 cm 2 The orthographic projection area of ​​each second electrode 212 on the beauty head 120 is less than or equal to 1.5 cm 2 The orthographic projection area of ​​each third electrode 223 on the beauty head 120 is less than or equal to 1.5 cm 2 The orthographic projection area of ​​each fourth electrode 240 on the beauty head 120 is less than or equal to 1.5 cm 2 .

[0093] In this embodiment, the spacing between the standard electrodes is to achieve a larger effective area, that is, a certain spacing needs to be preset between the two electrodes. However, if the spacing is too large, the human body impedance will be greater, and the skin stimulation in the area close to the electrode will be stronger, or even tingling, which will bring a bad experience to the user. Therefore, in this embodiment, the spacing between the first side surface 211a and the second side surface 212a of the first electrode pair facing each other is set between 1cm±0.3cm to balance the effective area and user comfort.

[0094] This is because the impedance of the human body is proportional to the distance between the electrodes. Too large a spacing will increase the resistance of the current through the skin, resulting in higher current density and stimulation near the electrode. Therefore, proper spacing helps to form a uniform current distribution between the electrodes. When the distance between the two electrodes is moderate, a larger skin area can be covered without increasing the impedance of the human body.

[0095] In this embodiment, the orthographic projection area of ​​each electrode on the beauty head 120 is controlled to be 1.5 cm 2 This design determines the current density. That is, the smaller the electrode area is, the greater the current density is, and the corresponding tingling sensation is stronger. Therefore, in order to reduce skin discomfort and potential irritation risks, the orthographic projection area of ​​each electrode on the beauty head 120 is controlled to 1.5 cm. 2 the following;

[0096] According to the relationship between current density and pain, higher current density may cause users to feel more intense stinging. Current density is defined as the amount of current divided by the area of ​​the electrode, and the unit is usually amperes per square centimeter (A / cm 2). The higher the current density, the greater the amount of current per unit area. Therefore, the nerve endings on the skin are sensitive to changes in current density. When the current density increases, the signals transmitted by the nerve endings to the brain are also enhanced, which may cause a stronger tingling sensation.

[0097] In this embodiment, the electrode area is controlled at 1.5 cm 2 The current density can be reduced, which can reduce skin irritation and make the beauty process more comfortable. Reducing the current density can also help reduce the risk of skin damage and improve the safety of beauty treatments.

[0098] In general, the electrode area should be kept within a moderate range, such as 1.5 cm 2 , which helps balance current density and skin sensation, providing a safer and more comfortable beauty experience.

[0099] Continue reading Figure 3 In this embodiment, the beauty head 120 includes a first edge 121, a second edge 122, a third edge 123 and a fourth edge 124 which are connected end to end in sequence. The first edge 121 and the third edge 123 are arranged opposite to each other at intervals, and the second edge 122 and the fourth edge 124 are arranged opposite to each other at intervals, and the size of the second edge 122 is smaller than that of the fourth edge 124.

[0100] A fourth electrode 240 is respectively provided on the first edge 121 and the third edge 123;

[0101] The first electrode group 210 is disposed between the third electrode 223 and the second edge 122 .

[0102] In this embodiment, the length of the fourth edge 124 is greater than the second edge 122, that is, one end of the first edge 121 and one end of the third edge 123 are respectively connected to the fourth edge 124, and the other end of the first edge 121 and the other end of the third edge 123 extend toward and connect to the second edge 122, and the distance between the first edge 121 and the third edge 123 gradually decreases as they extend. In the scheme of this embodiment, the overall shape and area of ​​the beauty head 120 is set to be similar to a "cone", and the first electrode group 210 is set near the second edge 122 with a smaller area, so that the first electrode group 210 is allowed to beautify the skin of a small area, such as the eyes. The first electrode group 210 and the second electrode group 220 can be used to beautify a large area of ​​skin, such as the entire face skin. In this way, the beauty instrument can adapt to both large and small areas of skin, thereby taking into account the comprehensiveness and efficiency of beauty.

[0103] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A beauty instrument, characterized in that: include: A shell, one end of which forms a beauty head; An electrode assembly, wherein at least a portion of the electrode assembly is exposed outside the beauty head, and is used to output microcurrent to the skin; The electrode assembly comprises a first electrode group and a second electrode group which are spaced apart from each other, the first electrode group comprises a first electrode and at least two second electrodes which are spaced apart from each other, the polarity of the first electrode is opposite to that of the second electrode, the first electrode has at least two first side surfaces which respectively face the at least two second electrodes, the second electrode has a second side surface which faces the first electrode, each of the second electrodes respectively forms a first electrode pair with the first electrode, and the first side surface and the second side surface which are arranged opposite to each other in each of the first electrode pairs are two parallel planes or two curved surfaces with the same curvature and bending direction; The second electrode group includes a third electrode and at least two fourth electrodes distributed around the third electrode, the polarity of the third electrode is opposite to that of the fourth electrode, the third electrode has at least two third side surfaces facing the at least two fourth electrodes respectively, the fourth electrode has a fourth side surface facing the third electrode, each of the fourth electrodes forms a second electrode pair with the third electrode respectively, and the third side surface and the fourth side surface arranged opposite to each other in each second electrode pair are two parallel planes or two curved surfaces with the same curvature and bending direction.

2. The beauty instrument according to claim 1, characterized in that: The outer side surface of the first electrode includes at least two first side surfaces with different curvatures and bending directions, at least two second side surfaces facing the at least two first side surfaces have different curvatures and bending directions, and the first side surface and the second side surface facing each other in each first electrode pair are curved surfaces with the same bending directions; or The outer side surface of the first electrode is a first cylindrical surface, the second side surfaces of the at least two second electrodes are spaced apart and distributed on the second cylindrical surface, the second cylindrical surface is located at the periphery of the first cylindrical surface, and the central axis of the second cylindrical surface is coaxial with the central axis of the first cylindrical surface, and the first side surface and the second side surface facing each other in each first electrode pair are two curved surfaces with the same bending direction; or, The outer side surface of the first electrode is a first polygon, the second side surfaces of the at least two second electrodes are spaced apart and distributed on a second polygon located outside the first electrode, and the first side surface and the second side surface facing each other in each first electrode pair are two parallel planes.

3. The beauty instrument according to claim 1 or 2, characterized in that: The number of the first electrode is one, the number of the second electrodes is three, the outer side surface of the first electrode includes three first side surfaces connected end to end in sequence, wherein at least two of the first side surfaces have different curvatures and bending directions, and the first side surface and the second side surface facing each other in each first electrode pair are curved surfaces with the same bending directions; and / or, The orthographic projection area of ​​each of the second electrodes on the beauty head is equal.

4. The beauty instrument according to claim 1, characterized in that: The at least two fourth electrodes include two fourth electrodes respectively arranged on opposite sides of the third electrode, the third electrode is formed with two third side surfaces arranged back to back and facing the two fourth electrodes respectively, and the third side surface and the fourth side surface arranged facing each other in the second electrode pair formed by any one of the two fourth electrodes and the third electrode are two mutually parallel planes.

5. The beauty instrument according to claim 1, 2 or 4, characterized in that: The number of the third electrode is one, the number of the fourth electrodes is two, and the two fourth electrodes are symmetrically arranged on two opposite sides of the first electrode.

6. The beauty instrument according to claim 5, characterized in that: The outer side surface of the third electrode further includes a fifth side surface and a sixth side surface, the fifth side surface is a curved surface or a plane connected to one end of the two third side surfaces, and the sixth side surface is a curved surface or a plane connected to the other end of the two third side surfaces; One of the fifth side surface and the sixth side surface is disposed between the third side surface and the first pole group.

7. The beauty instrument according to claim 6, characterized in that: The third electrode is formed with a hollow inner hole, the two third side surfaces are respectively arranged on two opposite sides of the hollow inner hole, and the fifth side surface and the sixth side surface are respectively arranged on two other opposite sides of the hollow inner hole; and / or, The third side surface and the fourth side surface facing each other in each second electrode pair are two planes parallel to each other.

8. The beauty instrument according to claim 1, 2 or 4, characterized in that: The distances between the first side surfaces and the second side surfaces facing each other in all the first electrode pairs are equal; and / or, The distances between the third side surfaces and the fourth side surfaces facing each other in all the second electrode pairs are equal.

9. The beauty instrument according to claim 1, 2 or 4, characterized in that: The spacing between the first side surface and the second side surface facing each other in all the first electrode pairs is within 1 cm±0.3 cm, and the spacing between the third side surface and the fourth side surface facing each other in all the second electrode pairs is within 1 cm±0.3 cm; and / or, The orthographic projection area of ​​each of the first electrodes on the beauty head is less than or equal to 1.5 cm 2 The orthographic projection area of ​​each of the second electrodes on the beauty head is less than or equal to 1.5 cm 2 The orthographic projection area of ​​each of the third electrodes on the beauty head is less than or equal to 1.5 cm 2 The orthographic projection area of ​​each of the fourth electrodes on the beauty head is less than or equal to 1.5 cm 2 .

10. The beauty instrument according to claim 1, 2 or 4, characterized in that: The beauty head comprises a first edge, a second edge, a third edge and a fourth edge connected end to end in sequence, the first edge and the third edge are arranged opposite to each other at intervals, the second edge and the fourth edge are arranged opposite to each other at intervals, and the size of the second edge is smaller than the size of the fourth edge; The first edge and the third edge are respectively provided with a fourth electrode; The first electrode group is arranged between the third electrode and the second edge.

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