Ultrasonic beauty instrument

Abstract

The utility model discloses an ultrasonic beauty instrument, which comprises a shell, an ultrasonic transducer and a driving control circuit, and is characterized in that the shell is provided with a functional surface for skin-attached output, and the functional surface is provided with an ultrasonic output window; the ultrasonic transducer is arranged in the shell, the ultrasonic transducer comprises a plurality of sound making units arranged towards the ultrasonic output window, and each sound making unit comprises one or more ultrasonic transduction units; the plurality of sound making units are arranged according to a preset setting mode; the ultrasonic transduction unit is used for generating ultrasonic energy which is emitted into the skin through the ultrasonic output window; and the driving control circuit is electrically connected with the ultrasonic transducer to control each sound generating unit to generate ultrasonic energy according to a preset sequence so as to realize ultrasonic scanning dotting beauty treatment. According to the technical scheme, the size and energy consumption of the ultrasonic beauty instrument are reduced, noise and vibration of the ultrasonic beauty instrument during working are reduced, and the service life of the ultrasonic beauty instrument is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cosmetic equipment, in particular to an ultrasonic cosmetic instrument. BACKGROUND

[0002] As a non-invasive skin care device, the core technology of the ultrasonic cosmetic instrument depends on the focused energy generated by the ultrasonic transducer acting on the deep tissue of the skin to achieve the effect of tightening, lifting and other cosmetic effects through thermal effect. In order to improve the care efficiency, the ultrasonic cosmetic instrument in the prior art generally uses a stepping motor combined with a transmission mechanism (such as a lead screw, a gear or a guide rail) to drive the ultrasonic transducer to move along a preset trajectory, so as to expand the coverage area of the energy focus and shorten the dotting time of a single care. However, the existing technical scheme has the following disadvantages due to the use of the stepping motor and the transmission mechanism: 1. The ultrasonic cosmetic instrument has a large size and high energy consumption; 2. The stepping motor and the transmission mechanism generate noise and vibration during the care work, which seriously affects the user experience; 3. The transmission mechanism is subjected to reciprocating load for a long time, which is prone to mechanical failures such as wear and tear, increases the failure rate, and shortens the service life of the device. CONTENT OF THE UTILITY MODEL

[0003] The main purpose of the present application is to provide an ultrasonic cosmetic instrument, which aims to reduce the size and energy consumption of the ultrasonic cosmetic instrument, reduce the noise and vibration of the ultrasonic cosmetic instrument during work, and prolong the service life of the ultrasonic cosmetic instrument.

[0004] To achieve the above-mentioned purpose, the ultrasonic cosmetic instrument provided by the present application comprises:

[0005] A shell having a functional surface for skin output, wherein the functional surface is provided with an ultrasonic output window;

[0006] An ultrasonic transducer arranged in the shell, wherein the ultrasonic transducer comprises a plurality of sound output units arranged towards the ultrasonic output window, and the sound output units comprise one or more ultrasonic transducing units; the plurality of sound output units are arranged in a preset arrangement mode; the ultrasonic transducing unit is used to generate ultrasonic energy which is shot into the skin through the ultrasonic output window;

[0007] A drive control circuit electrically connected to the ultrasonic transducer to control each sound output unit to generate ultrasonic energy in a preset order to realize ultrasonic scanning dotting cosmetic.

[0008] In some embodiments, the drive control circuit comprises a control unit, an ultrasonic drive circuit and a switch module, the ultrasonic drive circuit is electrically connected to the switch module, the switch module is electrically connected to each of the sound output units, and the control unit is electrically connected to the switch module to control the switch module to switch the sound output units and the ultrasonic drive circuit on in a preset order.

[0009] In some embodiments, the switch module comprises a plurality of switch units corresponding to the plurality of sound radiating units one-to-one, the switch unit being electrically connected between its corresponding sound radiating unit and the driving output end of the ultrasonic driving circuit; the control unit comprises a control signal end corresponding to the switch unit one-to-one, the control signal end being electrically connected to the on-off control end of the corresponding switch unit to control the on-off of the switch unit.

[0010] In some embodiments, the driving control circuit further comprises a switching unit corresponding to the sound radiating unit one-to-one, the sound radiating unit comprising a plurality of ultrasonic transducing units electrically connected to the switch unit through the switching unit, the focal depth of each ultrasonic transducing unit of the sound radiating unit being different; the control unit is electrically connected to each switching unit to control the switching unit to switch on the corresponding ultrasonic transducing unit and the switch unit; and / or,

[0011] An electrical isolation unit is provided between the control signal end and its corresponding on-off control end.

[0012] In some embodiments, an electrical isolation unit is provided between the control signal end and its corresponding on-off control end, the electrical isolation unit comprising an NPN triode, a first resistor and a second resistor, the control signal end being electrically connected to the base of the NPN triode through the first resistor, the base of the NPN triode being grounded through the second resistor, the collector of the NPN triode being electrically connected to the on-off control end, and the emitter of the NPN triode being grounded.

[0013] In some embodiments, the switch unit is a solid-state relay, a mechanical relay or a MOS tube; and / or,

[0014] The control unit is electrically connected to the ultrasonic driving circuit to control the output size of the driving output end of the ultrasonic driving circuit; and / or,

[0015] The ultrasonic driving circuit comprises a control signal conversion module and a push-pull inverter module, the control unit being electrically connected to the control signal conversion module to control the control signal conversion module to output a first frequency signal and a second frequency signal complementary in frequency; the push-pull inverter module being electrically connected to the control signal conversion module and the driving output end to output alternating current to the driving output end according to the first frequency signal and the second frequency signal.

[0016] In some embodiments, the ultrasonic driving circuit comprises a control signal conversion module and a push-pull inverter module, the control unit is electrically connected to the control signal conversion module, and controls the control signal conversion module to output a first frequency signal and a second frequency signal which are complementary in frequency; the push-pull inverter module is electrically connected to the control signal conversion module and the driving output end, and outputs alternating current to the driving output end according to the first frequency signal and the second frequency signal.

[0017] The control signal conversion module comprises a high-frequency signal generation unit and a logic unit, the control unit is electrically connected to the high-frequency signal generation unit, and controls the high-frequency signal generation unit to output a high-frequency signal; and the logic unit is electrically connected to the high-frequency signal generation unit, and converts the high-frequency signal into the first frequency signal and the second frequency signal.

[0018] In some embodiments, the plurality of sound emitting units are arranged in an array; and / or,

[0019] The shell comprises a main shell with one end open, a head cover with an ultrasonic output window, and a solution inner shell, the head cover is installed at the open end of the main shell, the solution inner shell cooperates with the head cover to form a solution cavity, and the ultrasonic transducer is installed in the solution cavity; or, the shell comprises a main shell and a beauty head shell, the beauty head shell is detachably installed on the main shell, the beauty head shell has a solution cavity, and the ultrasonic transducer is arranged in the solution cavity; and / or,

[0020] The ultrasonic transducer is provided in plurality, and the plurality of ultrasonic transducers are arranged in at least two rows, and at least one ultrasonic transducer is arranged in each row.

[0021] In some embodiments, the plurality of sound emitting units are arranged in a linear array, a circular array or a planar array; or, the plurality of sound emitting units comprise a plurality of first sound emitting units arranged in a circular array, and a second sound emitting unit arranged in the enclosed area of the plurality of first sound emitting units; and / or,

[0022] The ultrasonic transducer is provided in plurality, and the plurality of ultrasonic transducers are arranged in at least two rows, and at least one ultrasonic transducer is arranged in each row, and the driving control circuit synchronously controls the plurality of ultrasonic transducers, or the driving control circuit synchronously controls ultrasonic transducers in different rows; and / or,

[0023] The ultrasonic transducer is a tile-shaped ultrasonic transducer, the tile-shaped ultrasonic transducer has a plurality of ultrasonic transducer units, and each ultrasonic transducer unit forms one sound emitting unit; and / or,

[0024] The drive control circuit comprises a timing trigger which periodically generates a trigger signal corresponding to the sound emitting unit in a preset order to control the sound emitting unit to generate ultrasonic energy in a preset order.

[0025] In some embodiments, the ultrasonic transducer is provided in plurality, and the drive control circuit controls the plurality of ultrasonic transducers to work in a preset order, or the plurality of ultrasonic transducers are independently controlled by the drive control circuit; and / or,

[0026] The shell has a solution cavity, and a support frame is arranged in the solution cavity, and the ultrasonic transducer is fixed on the support frame.

[0027] The technical scheme of the ultrasonic beauty instrument of the present application adopts a plurality of sound emitting units arranged in a preset manner in the ultrasonic transducer in the shell, and the plurality of sound emitting units are all arranged towards the ultrasonic output window, and the drive control circuit controls each sound emitting unit to generate ultrasonic energy in a preset order, so as to be respectively shot into different position points in the skin from the ultrasonic output window, thereby realizing ultrasonic scanning dotting, and the ultrasonic beauty instrument has high nursing efficiency. Compared with the prior art, the ultrasonic beauty instrument of the present application discards the traditional mechanical driving structure (i.e. a stepping motor and a transmission mechanism), and innovatively combines a plurality of sound emitting units with electronic scanning control technology, realizes mobile dotting output of ultrasonic energy, effectively reduces the volume and energy consumption of the ultrasonic beauty instrument, reduces the noise and vibration of the ultrasonic beauty instrument during operation, and prolongs the service life of the ultrasonic beauty instrument. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical scheme of the embodiments of the present application or the prior art, the drawings required for use in the description of the embodiments or the prior art will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings from the structures shown in the drawings without creative labor.

[0029] Figure 1 It is an embodiment of the cross-sectional structure of the shell of the ultrasonic beauty instrument of the present application.

[0030] Figure 2 It is a structure diagram of another embodiment of the ultrasonic beauty instrument of the present application.

[0031] Figure 3 It is a structure diagram of an embodiment of the ultrasonic transducer of the ultrasonic beauty instrument of the present application. Figure 2 It is a cross-sectional structure diagram of the shell of the ultrasonic beauty instrument of the present application.

[0032] Figure 4 It is a structure diagram of an embodiment of the ultrasonic transducer of the ultrasonic beauty instrument of the present application.

[0033] Figure 5 Circuit module diagram of an embodiment of the ultrasonic cosmetic instrument of the present application;

[0034] Figure 6 Arrangement diagram of an embodiment of the sound emitting unit in the ultrasonic transducer of the present application;

[0035] Figure 7 Arrangement diagram of a second embodiment of the sound emitting unit in the ultrasonic transducer of the present application;

[0036] Figure 8 Arrangement diagram of a third embodiment of the sound emitting unit in the ultrasonic transducer of the present application;

[0037] Figure 9 Arrangement diagram of a fourth embodiment of the sound emitting unit in the ultrasonic transducer of the present application;

[0038] Figure 10 Circuit module diagram of a second embodiment of the ultrasonic cosmetic instrument of the present application;

[0039] Figure 11 Circuit module diagram of a third embodiment of the ultrasonic cosmetic instrument of the present application;

[0040] Figure 12 Partial circuit module diagram of a fourth embodiment of the ultrasonic cosmetic instrument of the present application;

[0041] Figure 13 Circuit module diagram of a fifth embodiment of the ultrasonic cosmetic instrument of the present application;

[0042] Figure 14 Circuit module diagram of a sixth embodiment of the ultrasonic cosmetic instrument of the present application;

[0043] Figure 15 Circuit module diagram of a seventh embodiment of the ultrasonic cosmetic instrument of the present application;

[0044] Figure 16 Circuit module diagram of a first embodiment of the control signal conversion module in the ultrasonic cosmetic instrument of the present application;

[0045] Figure 17 Circuit module diagram of a second embodiment of the control signal conversion module in the ultrasonic cosmetic instrument of the present application;

[0046] Figure 18 Circuit diagram of a first embodiment of the ultrasonic drive circuit in the ultrasonic cosmetic instrument of the present application. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0048] It should be noted that all directional indications, such as up, down, left, right, front, back, etc., in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0049] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features indicated or implying the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" throughout the text includes three solutions, for example, A and / or B includes A technical solution, B technical solution, and A and B technical solution; in addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection claimed by the present application.

[0050] The present application mainly proposes an ultrasonic beauty instrument, which is mainly used for outputting ultrasonic energy to the skin to realize skin tightening, lifting or wrinkle removal.

[0051] Combined with reference Figures 1 to 9 In the present embodiment, the ultrasonic beauty instrument comprises a shell 10, an ultrasonic transducer 20 and a driving control circuit 30. The shell 10 has a functional surface 101 for skin output, and the functional surface 101 is provided with an ultrasonic output window 102; the ultrasonic transducer 20 is arranged in the shell 10, and the ultrasonic transducer 20 comprises a plurality of sound output units 21 arranged towards the ultrasonic output window 102, the sound output unit 21 comprising one or more ultrasonic transducing units 211; the plurality of sound output units 21 are arranged in a preset arrangement mode; the ultrasonic transducing unit 211 is used to generate ultrasonic energy which is shot into the skin through the ultrasonic output window 102; the driving control circuit 30 is electrically connected to the ultrasonic transducer 20 to control each sound output unit 21 of the ultrasonic transducer 20 to generate ultrasonic energy in a preset order, so as to realize ultrasonic scanning dotting beauty.

[0052] When the ultrasonic beauty instrument of the embodiment is used to care for the skin, the functional surface 101 of the shell 10 is first attached to the skin area to be cared for. After the functional surface 101 is attached to the skin to be cared for, the drive control circuit 30 drives each sound emitting unit 21 to work in a preset order, so that each sound emitting unit 21 generates ultrasonic energy in a preset order, which is emitted into the skin from the ultrasonic output window 102. The ultrasonic energy generated by each sound emitting unit 21 is focused on different points in the skin, that is, the ultrasonic beauty instrument stimulates the different points in the skin in a preset order (i.e., ultrasonic scanning and dotting). When the dotting care of the currently attached skin area is completed, the ultrasonic beauty instrument can be moved so that the functional surface 101 of the shell 10 is attached to the next skin area to be cared for, and the next skin area to be cared for is scanned and dotted, and the cycle is repeated.

[0053] In the embodiment, the drive control circuit 30 controls each sound emitting unit 21 of the ultrasonic transducer 20 to generate ultrasonic energy in a preset order. The drive control circuit 30 can control each sound emitting unit 21 to generate ultrasonic energy in a preset order one by one (i.e., only one sound emitting unit 21 generates ultrasonic energy at a time). For example, the ultrasonic transducer 20 includes six sound emitting units 21 (1st to 6th sound emitting units 21), and the drive control circuit 30 controls each sound emitting unit 21 to generate ultrasonic energy in a preset order one by one, that is, the drive control circuit 30 controls the six sound emitting units 21 to generate ultrasonic energy in the order of 1st→2nd→3rd→4th→5th→6th, or in the order of 6th→5th→4th→3rd→2nd→1st, or in other order. In some embodiments, the drive control circuit 30 includes a timing trigger that periodically generates a trigger signal for each sound emitting unit 21 in a preset order to control each sound emitting unit 21 to generate ultrasonic energy in a preset order. Each sound emitting unit 21 can be controlled by a corresponding switch (the drive control circuit 30 can include switches for each sound emitting unit 21) to turn on and off. The timing trigger generates a trigger signal for each sound emitting unit 21 and outputs the trigger signal to the switch of the corresponding sound emitting unit 21 to turn on the switch. For example, the timing trigger has a period of 6 seconds, each trigger signal lasts for 1 second, and the timing trigger generates trigger signals for the 1st, 2nd, 3rd, 4th, 5th, and 6th sound emitting units 21 in sequence in one period. The six sound emitting units 21 work in sequence for 1 second according to the trigger signals.

[0054] The drive control circuit 30 controls the individual sound emitting units 21 of the ultrasonic transducer 20 to generate ultrasonic energy in a preset order. Alternatively, multiple sound emitting units 21 can be controlled to generate ultrasonic energy in the same order (i.e., multiple sound emitting units 21 are controlled to generate ultrasonic energy at the same time). For example, the ultrasonic transducer 20 includes six sound emitting units 21 (1st to 6th sound emitting units 21). The drive control circuit 30 controls the individual sound emitting units 21 to generate ultrasonic energy in a preset order, which can be: the drive control circuit 30 first controls the 1st sound emitting unit 21 to generate ultrasonic energy, then switches to control the 2nd and 3rd sound emitting units 21 to generate ultrasonic energy at the same time, then switches to control the 4th sound emitting unit 21 to generate ultrasonic energy, and finally switches to control the 5th and 6th sound emitting units 21 to generate ultrasonic energy at the same time. Alternatively, the drive control circuit 30 first controls the 1st and 2nd sound emitting units 21 to generate ultrasonic energy, then switches to control the 3rd and 4th sound emitting units 21 to generate ultrasonic energy at the same time, and finally switches to control the 5th and 6th sound emitting units 21 to generate ultrasonic energy at the same time.

[0055] The multiple sound emitting units 21 of the ultrasonic transducer 20 are arranged in a preset arrangement, which can be that the multiple sound emitting units 21 are arranged in an array, for example, as shown in FIG. 2A, the multiple sound emitting units 21 are arranged in a linear array, or as shown in FIG. 2B, the multiple sound emitting units 21 are arranged in a circular array, or as shown in FIG. 2C, the multiple sound emitting units 21 are arranged in a planar array. Figure 6 The multiple sound emitting units 21 of the ultrasonic transducer 20 are arranged in a preset arrangement, which can be that the multiple sound emitting units 21 are arranged in an array, for example, as shown in FIG. 2A, the multiple sound emitting units 21 are arranged in a linear array, or as shown in FIG. 2B, the multiple sound emitting units 21 are arranged in a circular array, or as shown in FIG. 2C, the multiple sound emitting units 21 are arranged in a planar array. Figure 7 The multiple sound emitting units 21 of the ultrasonic transducer 20 are arranged in a preset arrangement, which can be that the multiple sound emitting units 21 are arranged in an array, for example, as shown in FIG. 2A, the multiple sound emitting units 21 are arranged in a linear array, or as shown in FIG. 2B, the multiple sound emitting units 21 are arranged in a circular array, or as shown in FIG. 2C, the multiple sound emitting units 21 are arranged in a planar array. Figure 8 The multiple sound emitting units 21 of the ultrasonic transducer 20 are arranged in a preset arrangement, which can be that the multiple sound emitting units 21 are arranged in an array, for example, as shown in FIG. 2A, the multiple sound emitting units 21 are arranged in a linear array, or as shown in FIG. 2B, the multiple sound emitting units 21 are arranged in a circular array, or as shown in FIG. 2C, the multiple sound emitting units 21 are arranged in a planar array. Figure 9 The multiple sound emitting units 21 of the ultrasonic transducer 20 are arranged in a preset arrangement, which can be that the multiple sound emitting units 21 are arranged in an array, for example, as shown in FIG. 2A, the multiple sound emitting units 21 are arranged in a linear array, or as shown in FIG. 2B, the multiple sound emitting units 21 are arranged in a circular array, or as shown in FIG. 2C, the multiple sound emitting units 21 are arranged in a planar array.

[0056] Each sound emitting unit 21 can include only one ultrasonic transducer 211, or a sound emitting unit 21 can include multiple ultrasonic transducers 211. The drive control circuit 30 controls the sound emitting units 21 to generate ultrasonic energy, which can be that only one ultrasonic transducer 211 in a sound emitting unit 21 is driven to work to generate ultrasonic energy, or multiple or all ultrasonic transducers 211 in a sound emitting unit 21 are driven to work to generate ultrasonic energy.

[0057] The technical scheme of the ultrasonic beauty instrument, the ultrasonic transducer 20 in the shell 10 adopts a plurality of sound output units 21 arranged in a preset arrangement mode, and the plurality of sound output units 21 are all arranged towards the ultrasonic output window 102, and the ultrasonic energy is generated by the driving control circuit 30 in a preset order to be respectively shot into different position points in the skin from the ultrasonic output window 102, so that the ultrasonic scanning dotting is realized, and the ultrasonic beauty instrument has high nursing efficiency. Compared with the prior art, the ultrasonic beauty instrument of the utility model discards the traditional mechanical driving structure (i.e. a stepping motor and a transmission mechanism), and innovatively combines the plurality of sound output units 21 with the electronic scanning control technology, realizes the movable dotting output (i.e. scanning dotting) of the ultrasonic energy, and fundamentally solves the problems of noise, vibration and mechanical wear in the prior art. The specific beneficial effects are as follows:

[0058] 1. Silent and no vibration, significantly improving user experience: after canceling the stepping motor and the transmission mechanism, the device operation only relies on the electronic signal to control the output of the sound output unit 21, completely avoiding the mechanical noise and vibration of the stepping motor start-stop, gear meshing, screw friction, etc., so that the working noise is reduced to a very low level, and the operation process is stable and comfortable.

[0059] 2. The structure is simplified, and the reliability is greatly enhanced; the wear-resistant transmission devices such as lead screws (or racks) and guide rails are removed, and only the fixed electronic elements such as the ultrasonic transducer 20 and the driving control circuit 30 are reserved in the whole machine, the mechanical failure rate tends to be zero, and the service life of the ultrasonic beauty instrument is significantly prolonged.

[0060] 3. By controlling each sound output unit 21 to quickly switch work, the ultrasonic energy coverage of different position points is quickly realized, the energy coverage speed is much higher than the physical movement mode of the traditional mechanical scanning, and the nursing efficiency is improved.

[0061] 4. Miniaturization and low-power design: after canceling the stepping motor and the transmission mechanism, the internal space utilization rate of the shell 10 is improved, the volume and weight of the ultrasonic beauty instrument are significantly reduced, and the portable trend of the handheld beauty instrument is more in line with; energy consumption optimization: only the power consumption of the ultrasonic transducer 20 is needed, the dynamic load of continuously driving the stepping motor is saved, the overall power consumption is greatly reduced, the battery endurance is prolonged, and it is suitable for home or mobile scenarios.

[0062] In summary, the technical scheme of the ultrasonic beauty instrument of the utility model, by replacing the mechanical scanning dotting mode with the electronic scanning dotting mode, effectively reduces the volume and energy consumption of the ultrasonic beauty instrument, reduces the noise and vibration during the working of the ultrasonic beauty instrument, and prolongs the service life of the ultrasonic beauty instrument.

[0063] Reference Figure 4In the embodiment, the driving control circuit 30 comprises a control unit 31, an ultrasonic driving circuit 32 and a switch module 33. The ultrasonic driving circuit 32 is electrically connected to the switch module 33, the switch module 33 is electrically connected to each sound emitting unit 21, and the control unit 31 is electrically connected to the switch module 33 to control the switch module 33 to switch the sound emitting unit 21 and the ultrasonic driving circuit 32 on in a preset order. The switch module 33 controls the on-off of each sound emitting unit 21 and the ultrasonic driving circuit 32. The control unit 31 sends a corresponding control signal to the switch module 33 to make the switch module 33 connect the ultrasonic driving circuit 32 and the sound emitting unit 21 corresponding to the control signal, and make other sound emitting units 21 and the ultrasonic driving circuit 32 remain disconnected. The control unit 31 switches the control signal sent to the switch module 33 in a preset order, so that the switch module 33 switches the sound emitting unit 21 and the ultrasonic driving circuit 32 on in a preset order.

[0064] The scheme of the ultrasonic beauty instrument in the embodiment controls the switch module 33 to switch the sound emitting unit 21 and the ultrasonic driving circuit 32 on through the control unit 31, so that the sound emitting unit 21 works in turn (i.e. the ultrasonic driving circuit 32 drives only one sound emitting unit 21 to work each time), and the driving voltage of the ultrasonic driving circuit 32 to each sound emitting unit 21 is basically consistent, which ensures that the effect of the ultrasonic energy generated by each sound emitting unit 21 is more consistent and stable.

[0065] Further, in some embodiments, each sound emitting unit 21 can only comprise one ultrasonic transducer unit. Thus, the control unit 31 controls each ultrasonic transducer unit to output ultrasonic energy in turn, and the ultrasonic driving circuit 32 drives only one ultrasonic transducer unit each time, so that the driving voltage of each ultrasonic transducer unit is more consistent, and the effect of the ultrasonic energy generated by each sound emitting unit 21 is more consistent and stable.

[0066] Reference Figure 11In some embodiments, the switch module 33 includes a plurality of switch units 331 corresponding to the plurality of sound radiating units 21, and the switch unit 331 is electrically connected between the corresponding sound radiating unit 21 and the driving output terminal of the ultrasonic driving circuit 32; the control unit 31 includes a control signal terminal corresponding to the switch unit 331, and the control signal terminal is electrically connected to the on-off control terminal of the corresponding switch unit 331 to control the on-off of the switch unit 331. When the control signal terminal of the control unit 31 outputs a trigger signal (for example, a first level signal), the switch unit 331 electrically connected to the control signal terminal is turned on, that is, the corresponding sound radiating unit 21 of the switch unit 331 is turned on with the driving output terminal of the ultrasonic driving circuit 32; when the control signal terminal of the control unit 31 does not output a trigger signal, the switch unit 331 electrically connected to the control signal terminal is turned off, that is, the corresponding sound radiating unit 21 of the switch unit 331 is turned off with the driving output terminal of the ultrasonic driving circuit 32.

[0067] In the embodiment, the control unit 31 can control each control signal terminal to output a trigger signal in a preset sequence in turn, so that each switch unit 331 is turned on in the preset sequence in turn, that is, each sound radiating unit 21 produces ultrasonic energy into the skin in turn.

[0068] In some embodiments, the control unit 31 can also control the plurality of control signal terminals to output trigger signals at the same time, so that the plurality of switch units 331 are turned on at the same time, and the plurality of sound radiating units 21 produce ultrasonic energy into the skin at the same time; when the plurality of sound radiating units 21 are driven to work to produce ultrasonic energy at the same time, the ultrasonic driving circuit 32 can be controlled to correspondingly increase the output to ensure that the ultrasonic energy produced by each of the plurality of sound radiating units 21 working at the same time is basically consistent with the ultrasonic energy produced by the ultrasonic driving circuit 32 driving one sound radiating unit 21 alone, thereby ensuring the consistency of the treatment and care effect of the ultrasonic beauty instrument.

[0069] Referring to Figure 12 In some embodiments, the control signal terminal of the control unit 31 and the on-off control terminal corresponding thereto are provided with an electrical isolation unit 34. By increasing the electrical isolation unit 34, the on-off control terminal of the switch unit 331 and the control signal terminal are effectively electrically isolated, which ensures that the control unit 31 is not affected by the signal interference of the on-off control terminal, and increases the stability and reliability of the whole driving control circuit 30.

[0070] Referring to Figure 12In some embodiments, the electrical isolation unit 34 comprises an NPN triode, a first resistor and a second resistor, the control signal end is electrically connected to the base of the NPN triode through the first resistor, the base of the NPN triode is grounded through the second resistor, the collector of the NPN triode is electrically connected to the on-off control end, and the emitter of the NPN triode is grounded. When the control signal end outputs a high level (i.e. the base of the NPN triode is a high level), the NPN triode is turned on, the collector of the NPN triode is grounded, i.e. the on-off control end of the switch unit 331 is pulled low to a low level; when the control signal end outputs a low level (i.e. the base of the NPN triode is a low level), the NPN triode is not turned on, the collector of the NPN triode is not grounded, i.e. the on-off control end of the switch unit 331 is not a low level. The switch unit 331 can be turned on when the on-off control end is a low level, and turned off when the on-off control end is not a low level; or the switch unit 331 can be turned off when the on-off control end is a low level, and turned on when the on-off control end is not a low level. Therefore, the control unit 31 can control the on-off of the switch unit 331 by switching the high and low of the level signal output by the control signal end thereof. Of course, in other embodiments, the electrical isolation unit 34 can also be other similar switch tube circuits, or electrical isolation chips or circuits, etc.

[0071] With reference to Figure 12 In some embodiments, the switch unit 331 can be a solid-state relay, the anode of the light-emitting diode D1 of the optocoupler MOS tube of the solid-state relay (i.e. one input end of the solid-state relay) is electrically connected to the power supply VCC (e.g. 5V) through a current-limiting resistor Rs, the cathode of the light-emitting diode D1 of the optocoupler MOS tube (i.e. the other input end of the solid-state relay) is used as the on-off control end of the switch unit 331, and the two output ends of the solid-state relay are respectively electrically connected to the drive output end of the ultrasonic drive circuit 32 and the sound unit 21. In this embodiment, the NPN triode of the electrical isolation unit 34 amplifies the current of the input end of the solid-state relay (i.e. the current passing through the light-emitting diode D1 of the optocoupler MOS tube), ensuring that the current of the input end of the solid-state relay is sufficient to drive the light-emitting of the light-emitting diode D1, thereby ensuring the reliability of the solid-state relay. In this embodiment, the use of the solid-state relay in the switch unit 331 has the following advantages: since the solid-state relay has no mechanical contact, it has no mechanical action delay and very fast response speed, which can effectively support the fast switching of the operation of the sound unit 21, realize the faster scanning and dotting of the ultrasonic beauty instrument, and effectively improve the nursing efficiency; in addition, the solid-state relay has low power consumption and high efficiency when working, which can save electric energy and reduce the heat generated during operation; in addition, the switching life of the solid-state relay is up to millions of times, which is much higher than the life of the traditional switch unit 331.

[0072] Of course, in some embodiments, the switch unit 331 can also adopt a mechanical relay, or a MOS tube, or a switch chip or other switch circuit.

[0073] With reference to Figure 13 In some embodiments, the drive control circuit 30 further comprises a switching unit 35 corresponding to each sound unit 21, the sound unit 21 comprises a plurality of ultrasonic transducer units 211 electrically connected to the switch unit 331 through the switching unit 35. Figure 13 For example, the sound unit 21 comprises an ultrasonic transducer unit 211 with a focal depth of a and an ultrasonic transducer unit 211 with a focal depth of b), here, the different focal depth values mean that when each ultrasonic transducer unit 211 of the sound unit 21 is driven to work by using the same driving signal, the focal depth of the ultrasonic energy generated by each ultrasonic transducer unit 211 is different. The control unit 31 is electrically connected to each switching unit 35 to control the switching unit 35 to switch the corresponding ultrasonic transducer unit 211 and the switch unit 331 to be conductive, so that the control unit 31 can select the corresponding ultrasonic transducer unit 211 in the sound unit 21 and the switch unit 331 to be conductive according to the different ultrasonic point depth requirements of the ultrasonic beauty instrument, to work to generate ultrasonic energy acting on the corresponding depth position in the skin; that is, the ultrasonic beauty instrument can set different point depth gears, and the control unit 31 outputs the corresponding control signal to make each switching unit 35 switch the corresponding ultrasonic transducer unit 211 and the switch unit 331 to be conductive, so that the ultrasonic energy output by each sound unit 21 acts on the corresponding depth position in the skin. The switching unit 35 can be a switching circuit or chip that selectively connects the switch unit 331 in the multiple ultrasonic transducers 20 in the sound unit 21.

[0074] In some embodiments, the shell 10 can be provided with a plurality of ultrasonic transducers 20, and the plurality of ultrasonic transducers 20 are distributed in at least two rows, and each row is provided with at least one ultrasonic transducer 20. In this way, the ultrasonic beauty instrument has more output modes to choose from, for example, driving each ultrasonic transducer 20 to work in a predetermined order, or driving multiple ultrasonic transducers 20 to work at the same time, or alternately controlling each row of ultrasonic transducers 20 to work, etc., so that the nursing function of the ultrasonic beauty instrument is more diversified.

[0075] With reference to Figure 14In some embodiments, the driving control circuit 30 can control the plurality of ultrasonic transducers 20 in a synchronous manner, i.e., the driving control circuit 30 synchronously outputs control signals to the plurality of ultrasonic transducers 20 to make the plurality of ultrasonic transducers 20 work synchronously, or to make the corresponding sound emitting units 21 in the plurality of ultrasonic transducers 20 work synchronously. The driving control circuit 30 can also control different rows of ultrasonic transducers 20 in a synchronous manner, i.e., the driving control circuit 30 synchronously outputs control signals to different rows of ultrasonic transducers 20 to make the different rows of ultrasonic transducers 20 work synchronously, such as the driving control circuit 30 controlling the ultrasonic transducers 20 in the same column of ultrasonic transducers 20 in each row to work synchronously, and controlling the switching of one column of ultrasonic transducers 20 at a time.

[0076] In some embodiments, the driving control circuit 30 can also control the plurality of ultrasonic transducers 20 to work in a preset order, such as the driving control circuit 30 controlling each ultrasonic transducer 20 to work in a left-to-right order. Alternatively, the driving control circuit 30 can independently control the plurality of ultrasonic transducers 20 to work, i.e., the working of each ultrasonic transducer 20 is independent of the working of the other ultrasonic transducers 20, and the driving control circuit 30 controls any one ultrasonic transducer 20 to work to achieve more precise nursing control requirements.

[0077] In the above control of the driving control circuit 30 on each ultrasonic transducer 20, the control of each sound emitting unit 21 of each ultrasonic transducer 20 can be the control manner described in the foregoing embodiments, i.e., controlling each sound emitting unit 21 to generate ultrasonic energy in a preset order.

[0078] Referring to Figure 1 , Figure 3 and Figure 4 In some embodiments, the ultrasonic transducer 20 can be a tile-shaped ultrasonic transducer 20, and the side of the tile-shaped ultrasonic transducer 20 facing the ultrasonic output window 102 is an arc-shaped concave surface 201, which can better focus the ultrasonic energy output by the sound emitting unit 21. Of course, the ultrasonic transducer 20 can also be arranged in other shapes.

[0079] In some embodiments, the control unit 31 can also be electrically connected to the ultrasonic driving circuit 32 to control the output size of the driving output end of the ultrasonic driving circuit 32. By controlling the output size of the driving output end of the ultrasonic driving circuit 32, the size of the ultrasonic energy generated by the operation of the sound emitting unit 21 is adjusted, so as to adjust the intensity of the ultrasonic energy of the sound emitting unit 21 acting on the skin. In this way, the ultrasonic beauty instrument can adjust the output intensity of the ultrasonic beauty instrument, and the ultrasonic beauty instrument can be additionally provided with multiple gears for user selection. The control unit 31 can control the driving output end of the ultrasonic driving circuit 32 to output a driving signal of a corresponding size according to the gear of the ultrasonic beauty instrument selected by the user, so that the ultrasonic beauty instrument is adjusted to a corresponding output intensity, better meeting the different needs of different users.

[0080] With reference to Figure 15 In some embodiments, the ultrasonic driving circuit 32 includes a control signal conversion module 321 and a push-pull inverter module 322. The control unit 31 is electrically connected to the control signal conversion module 321, and controls the control signal conversion module 321 to output a first frequency signal and a second frequency signal with complementary frequencies. The push-pull inverter module 322 is electrically connected to the control signal conversion module 321 and the driving output end, and outputs alternating current to the driving output end according to the first frequency signal and the second frequency signal.

[0081] In the present embodiment, since the control unit 31 is electrically connected to the control signal conversion module 321, when the control unit 31 outputs a driving control signal, the control signal conversion module 321 can generate a first frequency signal and a second frequency signal with complementary frequencies based on the driving control signal. Here, the first frequency signal and the second frequency signal with complementary frequencies can be regarded as a pair of driving signals for driving the push-pull inverter module 322 to output corresponding alternating current. In specific implementation, the control unit 31 can be a control circuit based on a processor. Correspondingly, the control signal conversion module 321 can specifically include two frequency division branches for outputting a first frequency signal and a second frequency signal with complementary frequencies according to a driving control signal. Here, complementary frequencies refer to that the level of the first frequency signal and the level of the second frequency signal are opposite to each other in a unit period. For example, in a unit period, the first frequency signal is high and the second frequency signal is low. For another example, in a unit period, the first frequency signal is low and the second frequency signal is high.

[0082] With reference to Figure 18In some embodiments, the circuit of the control signal conversion module 321 and the push-pull inverter module 322 can be as shown in the figure. Among them, U1 in the control signal conversion module 321 is a gate drive chip, which can amplify the input signal into an internal amplification circuit to amplify the driving capability, the push-pull inverter module 322 includes a switching circuit composed of at least two switching tubes (Q8 and Q9 shown in the figure, which are NMOS tubes), and a transformer T1 electrically connected with the switching circuit, L1 is a matching inductor, and capacitors C1 and C2 form a matching circuit to match the working parameters of the ultrasonic transducer 20. Based on this, when the control signal conversion module 321 outputs the first frequency signal and the second frequency signal complementary in frequency to the push-pull inverter module 322, the two switching tubes (Q8 and Q9) in the switching circuit can be alternately turned on under the action of the first frequency signal and the second frequency signal, and then alternating current with opposite directions is generated in the primary winding of the transformer T1, so that the secondary winding of the transformer T1 can output alternating current. When receiving the first frequency signal and the second frequency signal complementary in frequency, the two switching tubes (Q8 and Q9) in the push-pull inverter circuit are driven by the first frequency signal and the second frequency signal respectively, so that the two switching tubes (Q8 and Q9) are alternately turned on. Since the transformer in the push-pull inverter circuit generates electric energy in the process of alternating conduction of the two switching tubes (Q8 and Q9), alternating current can be output through the secondary winding of the transformer T1 from the driving output end of the ultrasonic drive circuit 32, and then the sound emitting unit 21 receiving the alternating current can work based on the alternating current to generate ultrasonic energy.

[0083] Referring to Figure 16 In some embodiments, the control signal conversion module 321 includes a high-frequency signal generation unit 3211 and a logic unit 3212, the control unit 31 is electrically connected with the high-frequency signal generation unit 3211 to control the high-frequency signal generation unit 3211 to output a high-frequency signal; the logic unit 3212 is electrically connected with the high-frequency signal generation unit 3211 to convert the high-frequency signal into a first frequency signal and a second frequency signal.

[0084] In specific implementation, the high-frequency signal generation unit 3211 can communicate with the control unit 31 through I2C, that is, receive the driving control signal output by the control unit 31. The driving control signal can include a clock part and a data part. The high-frequency signal generation unit 3211 can output a high-frequency signal based on the clock part and the data part. Based on this, in actual implementation, the clock part and the data part in the initial control signal can be configured by the control unit 31, and then the frequency, amplitude, etc. of the high-frequency signal can be adjusted.

[0085] As an example, the high-frequency signal generation unit 3211 can specifically be a clock crystal oscillator and a frequency synthesizer. The clock crystal oscillator can generate a 25 MHz frequency signal and output the frequency signal to the frequency synthesizer. That is, the clock crystal oscillator serves as a high-frequency signal source of the frequency synthesizer. For example, the frequency synthesizer outputs a 4 MHz high-frequency signal according to a driving control signal and the 25 MHz frequency signal.

[0086] In this embodiment, the logic unit 3212 can be implemented by a logic gate circuit. For example, the logic gate circuit includes at least two signal output branches. The high-frequency signal is level-inverted through one of the signal output branches, and the output frequencies of the two signal output branches are the same, so that the first frequency signal and the second frequency signal with complementary frequencies can be output.

[0087] In this embodiment, the high-frequency signal generation unit 3211 is used in combination with the logic unit 3212 to output the first frequency signal and the second frequency signal with complementary frequencies. That is, frequency division of the frequency signal is implemented at a low hardware cost to obtain a pair of signals with complementary frequencies for controlling the push-pull inverter module 322.

[0088] Referring to Figure 17 As an example, the logic unit 3212 of the control signal conversion module 321 includes a first branch and a second branch. The input end of the first branch is connected to the input end of the second branch to form a signal transmission node P, and the signal transmission node P is used to electrically connect the high-frequency signal generation unit 3211. The first branch is used to output a first frequency signal according to the high-frequency signal. The second branch is used to output a second frequency signal according to the high-frequency signal. In a specific implementation, the first branch and the second branch can be branches composed of logic gates. The first branch and the second branch are electrically connected to the high-frequency signal generation unit 3211 through the signal transmission node P, and can thus simultaneously receive the high-frequency signal transmitted by the high-frequency signal generation unit 3211.

[0089] Referring to Figure 1 In this embodiment, the shell 10 includes a main shell 11 with one end open, a head cover 12 with an ultrasonic output window 102, and a solution inner shell 13. The head cover 12 is installed at the open end of the main shell 11, and the solution inner shell 13 cooperates with the head cover 12 to form a solution cavity 103. The ultrasonic transducer 20 is installed in the solution cavity 103. The main shell 11 can serve as a hand-held part to facilitate the user to hold and use.

[0090] Referring to Figure 2 and Figure 3In the embodiment, the shell 10 comprises a main shell 11 and a cosmetic head shell 14, the cosmetic head shell 14 is detachably mounted on the main shell 11, the cosmetic head shell 14 has a solution cavity 103, and the ultrasonic transducer 20 is arranged in the solution cavity 103. The main shell 11 can be used as a hand-held part, which is convenient for the user to hold and use. The cosmetic head shell 14 is detachably connected with the main shell 11, which is convenient for the maintenance and replacement of the cosmetic head shell 14, and also facilitates the main shell 11 to be equipped with multiple cosmetic head shells 14 for switching use.

[0091] With reference to Figure 1 And Figure 3 In some embodiments, the shell 10 has a solution cavity 103, a support frame 105 is arranged in the solution cavity 103, and the ultrasonic transducer 20 is fixed on the support frame 105, so that the position of the ultrasonic transducer 20 is fixed. By arranging the ultrasonic transducer in the solution cavity 103, a specific liquid can be filled in the solution cavity 103, and the transmission efficiency of ultrasonic waves in the liquid is much higher than that in air. The liquid in the solution cavity 103 can effectively transmit acoustic energy to the skin tissue, reduce the scattering and loss of energy in the air, and reduce the reflection of acoustic waves at the interface, so that the energy can be more efficiently transmitted to the deep layer of the skin. In addition, the ultrasonic transducer 20 generates heat during operation, and the liquid in the solution cavity 103 can better help the ultrasonic transducer 20 dissipate heat, prevent the equipment from being damaged due to overheating, and avoid the skin from being uncomfortable or burned due to high temperature.

[0092] The technical features of the above embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0093] The above description is only the preferred embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation made by using the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. An ultrasonic cosmetic instrument, characterized by, The application relates to a skin treatment device, comprising: a housing having a functional surface for skin output, wherein the functional surface is provided with an ultrasonic output window; an ultrasonic transducer arranged in the housing, wherein the ultrasonic transducer comprises a plurality of sound emitting units arranged towards the ultrasonic output window, the sound emitting units comprise one or more ultrasonic transducing units; the plurality of sound emitting units are arranged in a preset arrangement mode; the ultrasonic transducing units are used to generate ultrasonic energy which is emitted into the skin through the ultrasonic output window; a drive control circuit electrically connected to the ultrasonic transducer to control the ultrasonic transducer to generate ultrasonic energy in a preset sequence to realize ultrasonic scanning and dotting beauty.

2. The ultrasonic cosmetic device of claim 1, wherein, The drive control circuit comprises a control unit, an ultrasonic drive circuit and a switch module, the ultrasonic drive circuit is electrically connected to the switch module, the switch module is electrically connected to each of the sound emitting units, and the control unit is electrically connected to the switch module to control the switch module to switch the sound emitting units and the ultrasonic drive circuit on in a preset sequence.

3. The ultrasonic cosmetic device of claim 2, wherein, The switch module comprises a plurality of switch units corresponding to the plurality of sound emitting units one by one, the switch units are electrically connected between the corresponding sound emitting units and the drive output end of the ultrasonic drive circuit; the control unit comprises a control signal end corresponding to the switch units one by one, and the control signal end is electrically connected to the on-off control end of the corresponding switch unit to control the on-off of the switch unit.

4. The ultrasonic cosmetic device of claim 3, wherein, The drive control circuit further comprises a switching unit corresponding to the sound emitting unit one by one, the sound emitting unit comprises a plurality of ultrasonic transducing units electrically connected to the switch unit through the switching unit, the focal depth of each ultrasonic transducing unit of the sound emitting unit is different; the control unit is electrically connected to each switching unit to control the switching unit to switch the corresponding ultrasonic transducing unit and the switch unit on; and / or, An electrical isolation unit is arranged between the control signal end and the corresponding on-off control end.

5. The ultrasonic cosmetic device of claim 3, wherein, An electrical isolation unit is arranged between the control signal end and the corresponding on-off control end, the electrical isolation unit comprises an NPN triode, a first resistor and a second resistor, the control signal end is electrically connected to the base of the NPN triode through the first resistor, the base of the NPN triode is grounded through the second resistor, the collector of the NPN triode is electrically connected to the on-off control end, and the emitter of the NPN triode is grounded.

6. The ultrasonic cosmetic device of claim 3, wherein, The switch unit is a solid-state relay, a mechanical relay or a MOS tube; and / or, The control unit is electrically connected to the ultrasonic drive circuit to control the output size of the drive output end of the ultrasonic drive circuit; and / or, The ultrasonic drive circuit comprises a control signal conversion module and a push-pull inverter module, the control unit is electrically connected to the control signal conversion module to control the control signal conversion module to output a first frequency signal and a second frequency signal which are complementary in frequency; and the push-pull inverter module is electrically connected to the control signal conversion module and the drive output end to output alternating current to the drive output end according to the first frequency signal and the second frequency signal.

7. The ultrasonic cosmetic device of claim 3, wherein, The ultrasonic driving circuit comprises a control signal conversion module and a push-pull inverter module, the control unit is electrically connected with the control signal conversion module, and the control signal conversion module is controlled to output first and second frequency signals with complementary frequencies; the push-pull inverter module is electrically connected with the control signal conversion module and the driving output end, and outputs alternating current to the driving output end according to the first and second frequency signals; The control signal conversion module comprises a high-frequency signal generation unit and a logic unit, the control unit is electrically connected with the high-frequency signal generation unit, and the high-frequency signal generation unit is controlled to output high-frequency signals; and the logic unit is electrically connected with the high-frequency signal generation unit, and the high-frequency signals are converted into the first and second frequency signals.

8. The ultrasonic cosmetic device according to any one of claims 1-7, wherein, The plurality of sound emitting units are arranged in an array; and / or, The shell comprises a main shell with one end open, a head cover with an ultrasonic output window, and a solution inner shell, the head cover is installed at the open end of the main shell, the solution inner shell cooperates with the head cover to form a solution cavity, and the ultrasonic transducer is installed in the solution cavity; or, the shell comprises a main shell and a beauty head shell, the beauty head shell is detachably installed on the main shell, the beauty head shell has a solution cavity, and the ultrasonic transducer is arranged in the solution cavity; and / or, The ultrasonic transducer is provided in a plurality of forms, and the plurality of ultrasonic transducers are arranged in at least two rows, and at least one ultrasonic transducer is arranged in each row.

9. The ultrasonic cosmetic device according to any one of claims 1-7, wherein, The plurality of sound emitting units are arranged in a linear array, a ring array or a surface array; or, the plurality of sound emitting units comprise a plurality of first sound emitting units arranged in a ring shape, and a second sound emitting unit arranged in the enclosed area of the plurality of first sound emitting units; and / or, The ultrasonic transducer is provided in a plurality of forms, and the plurality of ultrasonic transducers are arranged in at least two rows, and at least one ultrasonic transducer is arranged in each row, and the driving control circuit synchronously controls the plurality of ultrasonic transducers or the driving control circuit synchronously controls ultrasonic transducers in different rows; and / or, The ultrasonic transducer is a tile-shaped ultrasonic transducer, the tile-shaped ultrasonic transducer has a plurality of ultrasonic transducer units, and each ultrasonic transducer unit forms one sound emitting unit; and / or, The driving control circuit comprises a timing flip-flop, the timing flip-flop periodically generates a trigger signal corresponding to a sound emitting unit in a preset order to control each sound emitting unit to generate ultrasonic energy in a preset order.

10. The ultrasonic cosmetic device according to any one of claims 1-7, wherein, The ultrasonic transducer is provided in a plurality of forms, and the driving control circuit controls the plurality of ultrasonic transducers to work in a preset order, or the plurality of ultrasonic transducers are independently controlled by the driving control circuit; and / or, The shell has a solution cavity, the solution cavity is provided with a support frame, and the ultrasonic transducer is fixed on the support frame.

Images