Ultrasonic beautifying device

Abstract

The utility model discloses an ultrasonic beauty device, which comprises a handle and an ultrasonic beauty head, the ultrasonic beauty head comprises a head part, a skin sensor positioned in the head part, an ultrasonic module arranged corresponding to the head part and a control module, and the head part comprises a head part shell and a fitting surface positioned at one end of the head part shell and used for fitting the skin; the skin sensor is annular and is arranged close to the fitting surface, the skin sensor is spaced from the fitting surface in the direction perpendicular to the fitting surface, and the skin sensor is used for detecting the fitting state of the fitting surface and the skin; the ultrasonic module is used for detecting state parameters of the skin attached to the attaching face; the control module is used for receiving the fitting state fed back by the skin sensor so as to control the state of the ultrasonic module; and adjusting the ultrasonic energy output by the ultrasonic module according to the state parameters fed back by the ultrasonic module in the starting state of the ultrasonic module. And the control module controls the ultrasonic module according to the fitting state, so that the actual depth of the ultrasonic energy action is consistent with the predicted depth.

Description

Technical Field

[0001] This utility model relates to the field of beauty instrument technology, and in particular to an ultrasonic beauty device. Background Technology

[0002] As people's living standards improve, they are paying more and more attention to their skin condition and usually carry out corresponding care and maintenance. As a result, various beauty devices have appeared on the market. Collagen cannons use focused ultrasound energy to precisely target and treat tissues. The focused area can generate enough heat to achieve lifting, firming, skin rejuvenation, and fat reduction effects for beauty purposes.

[0003] However, existing collagen cannons typically require professional operators to judge whether the ultrasonic output window is in sufficient contact with the skin based on their personal sense. Alternatively, a skin contact detection metal electrode is installed at the ultrasonic output window to detect the skin's resistance and determine the contact status. This allows for the output of appropriate ultrasonic energy, ensuring that the actual depth reached matches the preset depth to achieve the desired cosmetic effect. However, personal judgment is easily misjudged due to various factors (operator's skill level, emotions, physiological state, etc.). Furthermore, direct contact between the metal electrode and the skin is affected by water and sweat, leading to inaccurate results and discrepancies between the actual and preset depths of ultrasonic energy. Moreover, improper operation, such as failure to adhere tightly to the skin, can also cause discrepancies between the actual and preset depths of ultrasonic energy. Utility Model Content

[0004] In view of this, the present invention provides a new ultrasonic beauty device to improve the above-mentioned problems.

[0005] This application provides an ultrasonic beauty device, including a handle and an ultrasonic beauty head mounted on the handle, the ultrasonic beauty head comprising:

[0006] The head includes a head shell and a fitting surface located at one end of the head shell for contact with the skin;

[0007] A skin sensor is located inside the head shell. The skin sensor is ring-shaped and close to the contact surface. The skin sensor is spaced apart from the contact surface in a direction perpendicular to the contact surface. The skin sensor is used to detect the contact state between the contact surface and the skin.

[0008] An ultrasonic module, corresponding to the head, is used to detect the state parameters of the skin that is in contact with the contact surface;

[0009] A control module electrically connected with the ultrasonic module and the skin sensor, the control module configured to receive the fitting state fed back by the skin sensor to control the state of the ultrasonic module, and in the starting state of the ultrasonic module, adjust the ultrasonic energy output by the ultrasonic module according to the state parameter fed back by the ultrasonic module.

[0010] In some embodiments, the inner contour of the projection of the skin sensor on the fitting surface coincides with or is located inside the outer contour of the fitting surface.

[0011] In some embodiments, the ultrasonic module comprises a liquid storage container provided with a liquid storage cavity, a propagation medium stored in the liquid storage cavity, and an ultrasonic assembly immersed in the propagation medium, the ultrasonic assembly being electrically connected with the control module and being arranged corresponding to the fitting surface.

[0012] In some embodiments, the liquid storage container is provided with an opening on the side facing the fitting surface, the opening being in communication with the liquid storage cavity, and the projection of the opening on the fitting surface is located inside the projection of the skin sensor on the fitting surface.

[0013] In some embodiments, the liquid storage container comprises a body and a protruding portion extending from the body towards the fitting surface, the opening penetrates through the protruding portion, the ultrasonic assembly is arranged at one end of the body close to the protruding portion, and the skin sensor is arranged around the outside of the protruding portion.

[0014] In some embodiments, the head shell is provided with a avoiding opening corresponding to the protruding portion of the liquid storage container, the avoiding opening is in communication with the opening, and the head further comprises a waterproof member arranged on the head shell and covering the avoiding opening.

[0015] In some embodiments, the outside of the head shell is provided with a recessed portion surrounding the outer periphery of the avoiding opening, the waterproof member is arranged in the recessed portion, and the outer surface of the waterproof member is flush with the end surface of the head shell.

[0016] In some embodiments, the ultrasonic assembly comprises an ultrasonic shell and a focused ultrasonic piezoelectric element arranged in the ultrasonic shell, the ultrasonic shell is provided with a mounting portion for arranging the focused ultrasonic piezoelectric element, the focused ultrasonic piezoelectric element comprises a plurality of focused ultrasonic units, and the control module is configured to control one or more of the focused ultrasonic units to generate focused ultrasonic energy.

[0017] In some embodiments, the ultrasonic shell and the liquid storage container are movably connected in the direction perpendicular to the fitting surface; or

[0018] The focused ultrasonic wave piezoelectric element is movably connected with the ultrasonic shell in a direction perpendicular to the contact surface.

[0019] The at least two focused ultrasonic units are arranged in a direction perpendicular to the contact surface.

[0020] In some embodiments, the head further comprises a color sensor mounted on the head shell, the color sensor is electrically connected with the control module, the color sensor is used for identifying the color of different areas of the mask attached to the contact surface, and the control module is used for receiving the color feedback by the color sensor and controlling the working state of the ultrasonic module.

[0021] The ultrasonic beauty device provided by the utility model has the advantages that the skin sensor can detect the contact state of the contact surface and the skin, the control module controls the ultrasonic module to start or not to start according to the contact state, the contact state is detected by the skin sensor, the accuracy of the detection result is not affected by human factors, the contact state is prevented from changing due to improper operation during use and affecting the beauty effect, the skin sensor is annular and spaced from the contact surface, so the skin sensor does not need to be directly in contact with the skin during detection, the accuracy of the detection result is not affected by water, sweat, dust and the like on the surface of the skin, the accuracy of the detection result is ensured, the actual depth of the ultrasonic energy output by the ultrasonic beauty device during use is consistent with the expected depth, meanwhile, the ultrasonic module can detect the state parameters of the skin attached to the contact surface, so that the control module can control the ultrasonic energy output by the ultrasonic module according to the state parameters, the subcutaneous tissues such as nerves and blood vessels are avoided, the safety during use is ensured, the power of the ultrasonic beauty device is improved on the premise of ensuring safety, and the beauty effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The utility model provides an ultrasonic beauty device structure schematic view for an embodiment of the utility model;

[0023] Figure 2 The utility model discloses an ultrasonic beauty head structure schematic view as shown in the figure; Figure 1 The utility model discloses an ultrasonic beauty head structure schematic view as shown in the figure;

[0024] Figure 3 The utility model discloses an ultrasonic beauty head structure schematic view as shown in the figure; Figure 2 The utility model discloses an ultrasonic beauty head structure schematic view as shown in the figure;

[0025] Figure 4 The utility model discloses an ultrasonic beauty head structure schematic view as shown in the figure; Figure 2 The utility model discloses an ultrasonic beauty head structure schematic view as shown in the figure;

[0026] Figure 5 The utility model discloses an ultrasonic beauty head structure schematic view as shown in the figure; Figure 2 The utility model discloses an ultrasonic beauty head structure schematic view as shown in the figure;

[0027] Figure 6 For Figure 3 The exploded view of the liquid storage container and the skin sensor shown in FIG.

[0028] Figure 7 For Figure 3 The exploded view of the ultrasonic assembly shown in FIG.

[0029] In the figure: 10, ultrasonic beauty device; 12, handle; 14, ultrasonic beauty head; 16, head; 18, skin sensor; 20, ultrasonic module; 22, control module; 23, head shell; 24, fitting surface; 26, color sensor; 28, radio frequency electrode; 30, liquid storage container; 32, ultrasonic assembly; 34, liquid storage cavity; 36, opening; 38, body; 40, protruding part; 42, base; 44, upper cover; 46, first waterproof ring; 48, annular body; 50, flange; 52, avoiding opening; 54, waterproof part; 56, recessed part; 58, second waterproof ring; 60, ultrasonic shell; 62, focused ultrasonic piezoelectric element; 64, open; 66, mounting part. DETAILED DESCRIPTION

[0030] In the following, the utility model will be further described in combination with the drawings and specific embodiments, it is explained that, under the premise of not conflicting, the following description of each embodiment or each technical feature can be combined to form a new embodiment.

[0031] It should be noted that all directional indications (such as up, down, left, right, front, back, inner, outer, top, bottom, etc.) in the embodiments of the utility model are only used to explain the relative positional relationship between components in a certain specific posture (as shown in the drawings), if the specific posture changes, the directional indications also change accordingly.

[0032] It should be further noted that when an element is referred to as being “fixed to” or “set on” another element, the element can be directly on another element or there can be a middle element simultaneously. When an element is referred to as being “connected” to another element, it can be directly connected to another element or there can be a middle element simultaneously.

[0033] Please refer to Figures 1 to 7The utility model provides an ultrasonic beauty device 10, including handle 12 and install in handle 12's ultrasonic beauty head 14, handle 12 is used for the user holds, and the ultrasonic beauty head 14 is used for contacting with skin, and the skin of contact site is as the beauty area, and the ultrasonic beauty head 14 emits ultrasonic energy to the beauty area to the effect of beauty to the beauty area. Specifically, the ultrasonic beauty head 14 acts on the face of the user, and the corresponding area of the face is as the beauty area to form the corresponding beauty effect to the face.

[0034] Handle 12 includes handle shell and the battery in handle shell interior, and the ultrasonic beauty head 14 is installed to handle shell, and the battery is electrically connected with the ultrasonic beauty head 14 to provide the electric energy for the ultrasonic beauty head 14 in the use process, and the bondage of external power supply is separated, and the user is convenient to use.

[0035] The ultrasonic beauty head 14 includes head 16, skin sensor 18, ultrasonic module 20 and control module 22, head 16 includes head shell 23 and the fit face 24 at one end of head shell 23, the fit face 24 is used to contact with skin, and head shell 23 is fixed to handle 12. Skin sensor 18 and ultrasonic module 20 are arranged in head shell 23, and control module 22 is electrically connected with skin sensor 18 and ultrasonic module 20 respectively.

[0036] Specifically, handle 12 is flat long columnar structure, and the ultrasonic beauty head 14 is located at one end of handle 12 in the length direction, and the fit face 24 is located at the end of head shell 23 away from handle 12. The ultrasonic energy generated when the ultrasonic beauty head 14 works can be transmitted to the skin adhered to the fit face 24, thereby forming a corresponding beauty effect on the skin of the site.

[0037] The head 16 further comprises a color sensor 26 mounted on the head shell 23, and the color sensor 26 is electrically connected with the control module 22. In use, the ultrasonic beauty device 10 can first apply a specific mask on the face, the mask has a shape substantially same as that of the face, and the mask has different colors corresponding to different regions of the face. The color sensor 26 is configured to identify the colors of different regions of the mask attached to the attaching surface 24, so as to determine the current face region corresponding to the ultrasonic beauty head 14. The control module 22 receives the colors fed back by the color sensor 26, so as to control the working state of the ultrasonic module 20. The ultrasonic energy required by different regions of the face can be different. The color sensor 26 can determine the current face region by identifying the colors of the mask, so that the control module 22 controls the ultrasonic module to output corresponding ultrasonic energy. When the color sensor 26 identifies that the face region has a large blood vessel, nerve or other tissue, the control module 22 can control the ultrasonic module 20 to stop working, so as to prevent the blood vessel, nerve or other tissue from being damaged, to prevent the user from being hurt, and to improve the safety performance of the ultrasonic beauty device 10. Moreover, since the ultrasonic beauty device 10 can identify the face region having the blood vessel, nerve or other tissue, the control module 22 can control the ultrasonic module 20 to increase the output power in other regions, so as to achieve the effect of improving the output power and reducing the safety risk.

[0038] For example, the mask can have red color corresponding to the trigeminal nerve region and large blood vessel region of the face. When the color sensor 26 identifies the red region of the mask, the control module 22 confirms that the current face region is a non-working region, and then controls the ultrasonic module 20 to stop working.

[0039] Preferably, one end of the color sensor 26 extends out of the head shell 23 or is flush with the outer surface of the head shell 23, so that the color sensor 26 can directly contact the mask, and the head shell 23 does not affect the detection result of the color sensor 26.

[0040] The head 16 further comprises a plurality of radio frequency electrodes 28 mounted on the head shell 23, and the radio frequency electrodes 28 are electrically connected with the control module 22. One end of the radio frequency electrodes 28 extends out of the head shell 23 or is flush with the outer surface of the head shell 23. The control module 22 can control the radio frequency electrodes 28 to output radio frequency energy and act on the skin corresponding to the radio frequency electrodes 28, so as to form a radio frequency beauty effect on the skin of the region, thereby enriching the beauty function of the ultrasonic beauty device 10.

[0041] The specific number of the radio frequency electrodes 28 is not limited, and the radio frequency electrodes 28 can be one or multiple. In the embodiment, the radio frequency electrodes 28 are multiple, and the multiple radio frequency electrodes 28 are arranged along the circumference of the head shell 23, so as to increase the contact area with the skin and improve the radio frequency beauty effect.

[0042] In an embodiment, the skin sensor 18 is located inside the head shell 23 and is used to detect the fitting state of the fitting surface 24 and the skin, that is, to detect whether the fitting surface 24 is completely fitted with the skin or only partially fitted with the skin, and the control module 22 is used to receive the fitting state fed back by the skin sensor 18 to control the state of the ultrasonic module 20, that is, to control the ultrasonic module 20 to start or not to start, and the ultrasonic module 20 not starting means that the ultrasonic module 20 does not work, which can mean that the ultrasonic module 20 has never worked, or can mean that the ultrasonic module 20 works for a period of time and then stops working. When the fitting surface 24 is not completely fitted with the skin, the actual depth of the ultrasonic energy effect may not be consistent with the expected depth, thereby affecting the cosmetic effect. The present application detects whether the fitting surface 24 is completely fitted with the skin by setting the skin sensor 18, and only controls the ultrasonic module 20 to output ultrasonic energy when the fitting surface 24 is completely fitted with the skin, so as to ensure that the actual depth of the ultrasonic energy effect is the same as the expected depth. Moreover, the skin sensor 18 is used to detect the fitting state, which can avoid the influence of human factors on the detection result. Moreover, when the ultrasonic cosmetic device 10 is in use, if the fitting state changes due to improper operation, that is, the fitting surface 24 is not completely fitted with the skin, the skin sensor 18 can detect that the fitting surface 24 is not completely fitted with the skin, and the control module 22 controls the ultrasonic module 20 to stop working, thereby avoiding the influence of improper operation on the cosmetic effect.

[0043] In the present embodiment, when the fitting surface 24 is fitted with the skin, the skin sensor 18 can form a loop with the human body, so as to detect a current signal, for example, the impedance of the skin. When the fitting area is different, the impedance of the loop will be different, so as to determine the fitting state of the fitting surface 24 and the skin according to the current signal. Specifically, when the fitting surface 24 is completely fitted with the skin, the area of the skin in contact with the ultrasonic cosmetic head 14 is relatively large, and the impedance detected by the skin sensor 18 is also relatively large. When the fitting surface 24 is only partially fitted with the skin, the area of the skin in contact with the ultrasonic cosmetic head 14 is relatively small, and the impedance detected by the skin sensor 18 is also relatively small. The fitting degree of the fitting surface 24 and the skin is determined by the size of the impedance.

[0044] The skin sensor 18 is annular and is arranged close to the fitting surface 24. When the fitting surface 24 is fitted with the skin, the part of the skin corresponding to the space inside the skin sensor 18 is the detection area. When the fitting surface 24 is completely fitted with the skin, the detection area corresponds to the entire space inside the skin sensor 18, and the area of the detection area is relatively large and the impedance is relatively large. When the fitting surface 24 is not completely fitted with the skin, the detection area only corresponds to part of the space inside the skin sensor 18, and the area of the detection area is relatively small and the impedance is relatively small, thereby realizing the effect of determining the fitting state by the size of the impedance.

[0045] The skin sensor 18 is spaced apart from the contact surface 24 in a direction perpendicular to the contact surface 24, so that the skin sensor 18 does not need to directly contact the skin during detection of the contact state, thereby avoiding the influence of water, sweat, dust and the like on the skin on the detection result, improving the accuracy of the detection result, and ensuring that the actual depth of the ultrasonic energy output by the ultrasonic module 20 is consistent with the expected depth.

[0046] The spacing between the skin sensor 18 and the contact surface 24 is not limited, and in an embodiment, the spacing between the skin sensor 18 and the contact surface 24 is in the range of 0.8-1 mm, preventing the ultrasonic beauty device 10 from affecting the accuracy of the detection structure during use due to the excessive spacing between the skin sensor 18 and the skin.

[0047] In the present embodiment, the inner contour of the projection of the skin sensor 18 on the contact surface 24 is located inside the outer contour of the contact surface 24, so that during detection, the detection area is the part that should be in contact with the contact surface 24, ensuring the accuracy of the detection structure. In other embodiments, the inner contour of the projection of the skin sensor 18 on the contact surface 24 can coincide with the outer contour of the contact surface 24.

[0048] In an embodiment, the ultrasonic module 20 is correspondingly arranged with the head portion 16 and is used to detect the state parameters of the skin in contact with the contact surface 24, including the presence or absence of blood vessels, nerves and the like, as well as the depth, thickness and the like of the blood vessels, nerves and the like. Specifically, the ultrasonic module 20 is located inside the head portion housing 23, and the skin sensor 18 is located between the ultrasonic module 20 and the contact surface 24.

[0049] The ultrasonic module 20 can emit ultrasonic waves to the skin and receive ultrasonic echoes reflected back through the skin, and use the transmission time, signal strength and the like of the echoes to detect the state parameters of the skin. The control module 22 is electrically connected to the ultrasonic module 20, so that in the activated state of the ultrasonic module 20, the ultrasonic energy output by the ultrasonic module 20 is adjusted according to the state parameters fed back by the ultrasonic module 20. Since different users have different face shapes, face sizes and mask wearing, etc., the face area represented by the corresponding part of the mask may not be exactly the same as the actual contact face area, so that the area identified by the color sensor 26 is not necessarily completely accurate. The present application first determines whether the current face area is the working area through the color sensor 26, and when it is determined to be the working area, the state parameters of the skin are detected through the ultrasonic module 20 to detect whether there are blood vessels, nerves and the like, and also to detect the depth and thickness of the blood vessels, nerves and the like, so that the detection result is more specific and accurate, and the output ultrasonic energy is adjusted, further improving the safety performance of the ultrasonic beauty device 10.

[0050] In an embodiment, the control module 22 can control the ultrasonic energy output by the ultrasonic module 20 to act on a depth of 1-4.5 mm below the skin, that is, the control module 22 can control the ultrasonic energy output by the ultrasonic module 20 to adjust the depth of action of the ultrasonic energy within a range of 1-4.5 mm.

[0051] The ultrasonic module 20 includes a liquid storage container 30, a propagation medium, and an ultrasonic assembly 32. The liquid storage container 30 is provided with a liquid storage cavity 34, the propagation medium is stored in the liquid storage cavity 34, and the ultrasonic assembly 32 is immersed in the propagation medium and electrically connected to the control module. The ultrasonic assembly 32 is arranged corresponding to the contact surface 24. The ultrasonic assembly 32 is used to emit ultrasonic waves to the contact surface 24 and receive reflected ultrasonic echoes. The ultrasonic waves can propagate in the propagation medium, so that the ultrasonic waves can propagate from the ultrasonic assembly 32 to the contact surface 24, and the ultrasonic echoes can propagate from the contact surface 24 to the ultrasonic assembly 32.

[0052] The specific type of the propagation medium is not limited as long as it can propagate ultrasonic waves. In the embodiment, the propagation medium includes an antifreeze solution prepared by mixing distilled water and a heat dissipation liquid. The propagation medium can not only transmit ultrasonic waves, but also absorb heat generated by the ultrasonic assembly 32 during operation, thereby assisting the ultrasonic assembly 32 in heat dissipation.

[0053] The side of the liquid storage container 30 facing the contact surface 24 is provided with an opening 36. The opening 36 is in communication with the liquid storage cavity 34, and the projection of the opening 36 on the contact surface 24 is located inside the projection of the skin sensor 18 on the contact surface 24. The opening 36 is arranged on the liquid storage container 30 to allow the propagation medium to contact the head 16, thereby preventing the liquid storage container 30 from affecting the propagation of ultrasonic waves.

[0054] The liquid storage container 30 includes a body 38 and a protruding portion 40 extending from the body 38 toward the contact surface 24. The liquid storage cavity 34 is located inside the body 38, the opening 36 penetrates the protruding portion 40, the ultrasonic assembly 32 is arranged at one end of the body 38 close to the protruding portion 40, and the skin sensor 18 is arranged around the outside of the protruding portion 40. The protruding portion 40 extending from the body 38 toward the contact surface 24 can reduce the distance between the liquid storage container 30 and the contact surface 24, thereby reducing the distance between the propagation medium and the contact surface 24, facilitating the propagation of ultrasonic waves to the contact surface 24, and also providing a certain limiting effect for the skin sensor 18, thereby facilitating the installation of the skin sensor 18.

[0055] The body 38 comprises a base 42 and a cover 44 arranged on the base 42, the base 42 and the cover 44 form the liquid storage cavity 34, the cover 44 is arranged on the side of the base 42 close to the contact surface 24, the protruding part 40 is arranged on the side of the cover 44 away from the base 42, and the ultrasonic assembly 32 is arranged inside the cover 44. By dividing the body 38 into the base 42 and the cover 44, the base 42 and the cover 44 can be separated during assembly, the ultrasonic assembly 32 is installed inside the cover 44, and then the cover 44 and the base 42 are fixed together, so that the installation of the ultrasonic assembly 32 is facilitated.

[0056] Preferably, a first waterproof ring 46 is arranged between the base 42 and the cover 44 to prevent the propagation medium in the liquid storage cavity 34 from leaking from the gap between the base 42 and the cover 44. Specifically, the side of the base 42 close to the cover 44 is provided with an annular groove, and the first waterproof ring 46 is arranged in the annular groove to enhance the stability of the first waterproof ring.

[0057] The skin sensor 18 comprises an annular body 48 and a flange 50 connected to the annular body 48, the annular body 48 surrounds the outer periphery of the protruding part 40, and the flange 50 extends outwardly from the end of the annular body 48 close to the contact surface 24 along the radial direction of the annular body 48.

[0058] In an embodiment, the head shell 23 is provided with a relief opening 52 corresponding to the protruding part 40 of the liquid storage container 30, the relief opening 52 is in communication with the opening 36, and the head 16 further comprises a waterproof member 54 arranged on the head shell 23, the waterproof member 54 covers the relief opening 52, and the contact surface 24 is at least partially arranged on the outer surface of the waterproof member 54 away from the relief opening 52. The propagation medium can directly contact the waterproof member 54 through the opening 36 and the relief opening 52, the ultrasonic waves in the propagation medium can act on the corresponding skin through the waterproof member 54, the distance between the propagation medium and the contact surface 24 is reduced, that is, the distance between the propagation medium and the skin is reduced, the ultrasonic waves are facilitated to be transmitted to the corresponding skin, and the influence of the head shell 23 on the transmission of the ultrasonic waves is reduced.

[0059] The outer side of the head shell 23 is provided with a recessed part 56 surrounding the outer periphery of the relief opening 52, the waterproof member 54 is arranged in the recessed part 56, and the outer surface of the waterproof member 54 is flush with the end surface of the head shell 23, which facilitates the contact between the waterproof member 54 and the skin, and also avoids the waterproof member 54 protruding outwardly from the head shell 23 to affect the use experience.

[0060] The specific type of the waterproof member 54 is not limited, and in the embodiment, the waterproof member 54 is a waterproof adhesive film, which is arranged in the recessed part 56 and is fixedly connected with the head shell 23, and the waterproof adhesive film can not only have a waterproof effect, but also has a relatively small thickness, which is conducive to the transmission of ultrasonic waves.

[0061] A second waterproof ring 58 is arranged between the protrusion 40 and the head housing 23, and the two axial sides of the second waterproof ring 58 abut against the protrusion 40 and the head housing 23 respectively to form a sealing effect. The second waterproof ring 58 surrounds the outer periphery of the opening 36 and the escape opening 52, thereby preventing the leakage of the propagation medium from the gap between the protrusion 40 and the head housing 23.

[0062] In an embodiment, the ultrasonic assembly 32 comprises an ultrasonic housing 60 and a focused ultrasonic piezoelectric element 62. The ultrasonic housing 60 is mounted inside the liquid storage container 30, and the focused ultrasonic piezoelectric element 62 is mounted inside the ultrasonic housing 60. The focused ultrasonic piezoelectric element 62 is arc-shaped to focus the generated ultrasonic waves. Specifically, the focused ultrasonic piezoelectric element 62 is a tile-shaped piezoelectric ceramic sheet.

[0063] The ultrasonic housing 60 is open at one side close to the contact surface 24, and the liquid storage cavity 34 is in communication with the internal space of the ultrasonic housing 60 through the opening 64, so that the focused ultrasonic piezoelectric element 62 inside the ultrasonic housing 60 can directly contact the propagation medium.

[0064] The ultrasonic housing 60 is provided with a mounting portion 66, which is annular and located inside the opening 64. The focused ultrasonic piezoelectric element 62 is mounted to the mounting portion 66.

[0065] The focused ultrasonic piezoelectric element 62 comprises a plurality of focused ultrasonic units. Each focused ultrasonic unit can generate focused ultrasonic energy. The focal points of the plurality of focused ultrasonic units are different, corresponding to different positions of the contact surface 24, so that the focused ultrasonic energy generated by the plurality of focused ultrasonic units can act on the skin at different positions. The control module is electrically connected to the plurality of focused ultrasonic units to control one or more of the focused ultrasonic units to generate focused ultrasonic energy. Since the focal points of the plurality of focused ultrasonic units are different, the control module can control the corresponding focused ultrasonic units to generate focused ultrasonic energy to act on the skin at specified positions according to actual needs.

[0066] It can be understood that the plurality of focused ultrasonic units can be a plurality of spaced-apart piezoelectric sheets. Each piezoelectric sheet forms a focused ultrasonic unit, i.e., each piezoelectric sheet can generate focused ultrasonic energy. The control module can select different piezoelectric sheets to work, so that the focused ultrasonic energy acts on the skin at different positions. Alternatively, the plurality of focused ultrasonic units can be a plurality of groups of electrodes with opposite polarities on the same piezoelectric element. Each group of electrodes constitutes a focused ultrasonic unit, i.e., each group of electrodes can cooperate to generate focused ultrasonic energy. The control module can select different groups of electrodes to work, so that the focused ultrasonic energy acts on the skin at different positions.

[0067] In an embodiment, the position of the focused ultrasound piezoelectric element 62 in the direction perpendicular to the contact surface 24 is adjustable, so as to adjust the distance between the focused ultrasound piezoelectric element 62 and the contact surface 24, when the distance changes, the depth of the focused ultrasound energy generated by the focused ultrasound piezoelectric element 62 acting on the skin will also change, thus the ultrasonic module 20 can adjust the depth of the focused ultrasound energy by adjusting the position of the focused ultrasound piezoelectric element 62.

[0068] The specific way of adjusting the position of the focused ultrasound piezoelectric element 62 is not limited, for example, the ultrasonic shell 60 and the liquid storage container 30 can be movably connected in the direction perpendicular to the contact surface 24, so that when the ultrasonic shell 60 moves relative to the liquid storage container 30 in the direction perpendicular to the contact surface 24, the focused ultrasound piezoelectric element 62 is driven to move, that is, the ultrasonic assembly 32 moves as a whole, or the focused ultrasound piezoelectric element 62 and the ultrasonic shell 60 can be movably connected in the direction perpendicular to the contact surface 24, so that the focused ultrasound piezoelectric element 62 moves relative to the ultrasonic shell 60.

[0069] It can be understood that the movement of the ultrasonic shell 60 or the focused ultrasound piezoelectric element 62 relative to the contact surface can be driven by a motor or a pneumatic cylinder.

[0070] In another embodiment, at least two focused ultrasound units are arranged in the direction perpendicular to the contact surface 24, and the distances between the focused ultrasound units arranged in the direction and the contact surface 24 are different, thus controlling the operation of different focused ultrasound units arranged in the direction can make the depths of the focused ultrasound energy different, and the focused ultrasound piezoelectric element 62 or the ultrasonic shell 60 does not need to be driven to move, that is, the effect of adjusting the depth of the focused ultrasound energy can be achieved.

[0071] In an embodiment, the control module 22 includes a plurality of circuit boards, the circuit boards are located in the handle shell and / or the head shell 23, and the ultrasonic assembly 32, the skin sensor 18, the color sensor 26, the battery and other elements are electrically connected with the corresponding circuit boards.

[0072] In the present application, the handle shell and the head shell 23 are both provided with circuit boards, the circuit boards in the handle shell are electrically connected with the circuit boards in the head shell 23, the battery is electrically connected with the circuit boards in the handle shell, and the ultrasonic module 20, the skin sensor 18 and the color sensor 26 are electrically connected with the circuit boards in the head shell 23.

[0073] The present application also provides a control method for the ultrasonic cosmetic device, which includes the following steps:

[0074] The control module controls the ultrasonic module to emit ultrasonic waves to the beauty area, receives the ultrasonic echo reflected back, and obtains ultrasonic signal data based on the ultrasonic echo, the ultrasonic signal data including at least one of the following: ultrasonic signal transmission time, ultrasonic echo signal intensity;

[0075] In this embodiment, the ultrasonic waves emitted by the ultrasonic beauty head to the beauty area will be reflected when encountering the subcutaneous tissue of the skin, and the ultrasonic module can receive the reflected ultrasonic echo. The time difference between the emitted ultrasonic wave and the received ultrasonic echo is taken as the ultrasonic signal transmission time, and the inner diameter size of the subcutaneous tissue, i.e., the size of the radial dimension of the subcutaneous tissue, is determined according to the intensity of the ultrasonic echo. The subcutaneous tissue depth is different, and the ultrasonic signal transmission time is also different. The greater the depth, the longer the ultrasonic signal transmission time. The subcutaneous tissue is different in thickness, and the ultrasonic echo signal intensity is also different. The thinner the subcutaneous tissue, the smaller the ultrasonic echo signal intensity. The thicker the subcutaneous tissue, the greater the ultrasonic echo signal intensity.

[0076] The subcutaneous tissue data of the beauty area is determined according to the ultrasonic signal data;

[0077] In this embodiment, the subcutaneous tissue includes at least one of the following: blood vessels, nerves, and the subcutaneous tissue data includes the depth and thickness of the subcutaneous tissue, i.e., the depth and thickness of the blood vessels and nerves. The skin tissue data is used to indicate the state parameters of the skin that is in contact with the contact surface.

[0078] Based on the subcutaneous tissue data, the control module controls the driving assembly of the ultrasonic module to drive the ultrasonic assembly to move, and controls the ultrasonic energy output by the ultrasonic assembly.

[0079] The ultrasonic module includes a driving assembly and an ultrasonic assembly connected with the driving assembly. The driving assembly can drive the ultrasonic assembly to move, so as to adjust the relative position of the ultrasonic assembly, so that the ultrasonic energy generated by the ultrasonic assembly acts on different positions and / or depths of the beauty area, and the ultrasonic energy output by the ultrasonic assembly is controlled according to the subcutaneous tissue data, so as to avoid the skin tissue and prevent damage. Although the distribution of skin tissue, the depth of subcutaneous tissue, and the thickness of subcutaneous tissue of each person may be different, the movement of the ultrasonic assembly and the output of the ultrasonic energy are controlled based on the calculated subcutaneous tissue data, which is more in line with the actual situation of the user, so as to achieve better beauty effect and reduce safety hazards.

[0080] In some embodiments, determining the subcutaneous tissue data of the beauty area according to the ultrasonic signal data includes:

[0081] determining the depth of the subcutaneous tissue of the beauty area according to the ultrasonic signal transmission time; and / or

[0082] Determine the subcutaneous tissue inner diameter of the cosmetic region according to the intensity of the ultrasonic echo signal.

[0083] When the subcutaneous tissue depth is less than the preset depth, the control module controls the ultrasonic assembly to not work or to reduce the output of ultrasonic energy, and when the subcutaneous tissue inner diameter is greater than the preset inner diameter, the control module controls the ultrasonic assembly to not work or to reduce the output of ultrasonic energy, so as to reduce the risk of damaging the subcutaneous tissue.

[0084] It can be understood that the preset depth can be a range or a specific value, which can be a specific depth value or a value determined according to the subcutaneous tissue depth level. Similarly, the preset inner diameter can also be a range or a specific value, which can be a specific inner diameter value or a value determined according to the subcutaneous tissue inner diameter level.

[0085] In some embodiments, the ultrasonic assembly includes a plurality of focused ultrasound units, and the control method further includes:

[0086] At the cosmetic region, the output of the ultrasonic assembly is first controlled in a single-point output mode, and then controlled in a multi-point output mode after the single-point output mode reaches a single-point mode stop condition, wherein the single-point output mode indicates a mode in which one focused ultrasound unit works, and the multi-point output mode indicates a mode in which two or more focused ultrasound units work simultaneously.

[0087] In the present embodiment, the control assembly can control one or more focused ultrasound units to work, forming a single-point output mode or a multi-point output mode. In the prior art, a single-point output mode is generally used to repeatedly output ultrasonic energy at the same position in a region, which can cause the region to swell or feel pain. In some implementations, when there are multiple focused ultrasound units, because the multiple focused ultrasound units are respectively located at different positions and the generated ultrasonic energy respectively acts on different parts, a single focused ultrasound unit can be used to act on the cosmetic region in a cycle, and after the single-point mode stop condition is reached, a multi-point output mode can be used to act on the cosmetic region, which can alleviate the swelling and pain of a certain region, thereby improving the user experience and cosmetic effect. The single-point mode stop condition includes but is not limited to: the single-point mode usage time exceeds a preset time, the number of cycles of the multiple focused ultrasound units exceeds a preset number, etc.

[0088] In some embodiments, before the control module controls the ultrasonic module to emit ultrasonic waves to the cosmetic region, the control method further includes:

[0089] The color sensor identifies the color of the mask attached to the attachment surface;

[0090] When the control component determines that the current beauty area is a non-working area according to the color fed back by the color sensor, the control component controls the ultrasonic module to not emit ultrasonic waves to the beauty area.

[0091] When the control component determines that the current beauty area is a working area according to the color fed back by the color sensor, the control component controls the ultrasonic module to emit ultrasonic waves to the beauty area.

[0092] In the embodiment, the ultrasonic beauty device is used in cooperation with a mask, and before the ultrasonic module emits ultrasonic waves to the beauty area, the color sensor is used to determine whether the beauty area is a working area, and when it is determined that the beauty area is a working area, the ultrasonic module is controlled to output ultrasonic energy, so as to reduce the harm to the human body and reduce the safety hazard.

[0093] In some embodiments, the ultrasonic beauty device further comprises a skin sensor, and the skin sensor is used to detect the fitting state of the fitting surface and the skin, and the control method further comprises:

[0094] When the current signal detected by the skin sensor is greater than the preset value, a start signal is generated, and the ultrasonic module is controlled to start according to the start signal.

[0095] When the current signal detected by the skin sensor is less than or equal to the preset value, a stop signal is generated, and the ultrasonic module is controlled to not start or stop working according to the stop signal.

[0096] When the fitting surface is fitted with the skin, the skin sensor and the human body form a loop, so that the current signal can be detected, and the current signals detected in the case of complete fitting and partial fitting of the fitting surface are different, so as to determine the fitting state, and the ultrasonic module only works in the case that the fitting surface is completely fitted with the skin, so as to ensure that the actual depth of the ultrasonic wave is consistent with the expected depth.

[0097] The above-mentioned embodiments are only preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application, and any non-substantial changes and replacements made by those skilled in the art on the basis of the present application all belong to the scope of protection of the present application.

Claims

1. An ultrasonic cosmetic device, characterized by, The ultrasonic cosmetic head comprises a handle and an ultrasonic cosmetic head mounted on the handle, the ultrasonic cosmetic head comprises: a head comprising a head shell and a contact surface at one end of the head shell for contact with the skin; a skin sensor inside the head shell, the skin sensor is annular and arranged close to the contact surface, the skin sensor is spaced apart from the contact surface in a direction perpendicular to the contact surface, and the skin sensor is used to detect the contact state of the contact surface and the skin; an ultrasonic module corresponding to the head, used to detect the state parameters of the skin in contact with the contact surface; a control module electrically connected with the ultrasonic module and the skin sensor, the control module is used to receive the contact state fed back by the skin sensor to control the state of the ultrasonic module, and in the starting state of the ultrasonic module, the ultrasonic energy output by the ultrasonic module is adjusted according to the state parameters fed back by the ultrasonic module.

2. The ultrasonic cosmetic device according to claim 1, characterized by The inner contour of the projection of the skin sensor on the contact surface coincides with or is inside the outer contour of the contact surface. 3.The ultrasonic cosmetic device of claim 1, wherein The ultrasonic module comprises a liquid storage container provided with a liquid storage cavity, a propagation medium stored in the liquid storage cavity, and an ultrasonic assembly immersed in the propagation medium, the ultrasonic assembly is electrically connected with the control module and is arranged corresponding to the contact surface.

4. The ultrasonic cosmetic device according to claim 3, characterized by The side of the liquid storage container facing the contact surface is provided with an opening, the opening is in communication with the liquid storage cavity, and the projection of the opening on the contact surface is inside the projection of the skin sensor on the contact surface.

5. The ultrasonic cosmetic device according to claim 4, characterized by The liquid storage container comprises a body and a protruding portion extending from the body towards the contact surface, the opening penetrates through the protruding portion, the ultrasonic assembly is arranged at one end of the body close to the protruding portion, and the skin sensor is arranged outside the protruding portion. 6.The ultrasonic cosmetic device according to claim 5, characterized in that, The head shell is provided with a avoiding opening corresponding to the protruding portion of the liquid storage container, the avoiding opening is in communication with the opening, and the head further comprises a waterproof member arranged on the head shell and covering the avoiding opening.

7. The ultrasonic cosmetic device according to claim 6, characterized in that The outer side of the head shell is provided with a recessed portion, the recessed portion surrounds the outer periphery of the avoiding opening, the waterproof member is arranged in the recessed portion, and the outer surface of the waterproof member is flush with the end surface of the head shell. 8.The ultrasonic cosmetic device according to claim 3, characterized by The ultrasonic assembly comprises an ultrasonic shell and a focused ultrasonic piezoelectric element in the ultrasonic shell, the ultrasonic shell is provided with a mounting portion for arranging the focused ultrasonic piezoelectric element, the focused ultrasonic piezoelectric element comprises a plurality of focused ultrasonic units, and the control module is used to control one or more of the focused ultrasonic units to generate focused ultrasonic energy. 9.The ultrasonic cosmetic device according to claim 8, characterized by The ultrasonic shell and the liquid storage container are movably connected in a direction perpendicular to the contact surface; or The focused ultrasonic piezoelectric element and the ultrasonic shell are movably connected in a direction perpendicular to the contact surface; or At least two focused ultrasonic units are arranged in a direction perpendicular to the contact surface.

10. The ultrasonic cosmetic device according to any one of claims 1 to 9, characterized in that, The head further comprises a color sensor mounted on the head shell, the color sensor is electrically connected with the control module, the color sensor is used for identifying the color of different areas of the mask attached to the attachment surface, and the control module is used for receiving the color feedback by the color sensor and controlling the working state of the ultrasonic module.

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