CN113713278A

CN113713278A - Output control method of ultrasonic physiotherapy equipment and ultrasonic physiotherapy equipment

Info

Publication number: CN113713278A
Application number: CN202110921484.3A
Authority: CN
Inventors: 董明明
Original assignee: SKG Health Technologies Co Ltd.
Current assignee: SKG Health Technologies Co Ltd.
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2021-11-30

Abstract

The application discloses output control method and ultrasonic physiotherapy equipment of ultrasonic physiotherapy equipment, ultrasonic physiotherapy equipment include ultrasonic energy converter and ultrasonic energy conversion drive unit, and the method includes: acquiring working parameters of ultrasonic physiotherapy equipment; generating a pulse width modulation signal according to the working parameters, wherein the pulse width modulation signal is used for controlling the power and the frequency of the ultrasonic wave output by the ultrasonic energy converter; and outputting a pulse width modulation signal to the ultrasonic energy conversion driving unit so that the ultrasonic energy conversion driving unit drives the ultrasonic energy converter according to the pulse width modulation signal, and the frequency of the ultrasonic wave output by the ultrasonic energy converter can reach the resonance frequency range of the ultrasonic energy converter, and the frequency of the ultrasonic wave has a preset frequency deviation with the central frequency of the resonance frequency range. By the method, the purpose of thermal therapy is achieved by adjusting the power and frequency of the ultrasonic waves according to the working parameters, and the experience of a user is improved.

Description

Output control method of ultrasonic physiotherapy equipment and ultrasonic physiotherapy equipment

Technical Field

The application relates to the technical field of massage, in particular to an output control method of ultrasonic physiotherapy equipment and the ultrasonic physiotherapy equipment.

Background

For office workers, the office workers can cause neck and back pain when working in front of a computer for a long time, and the neck and back pain of people can be effectively relieved by the appearance of the physiotherapy instrument, so that the physiotherapy instrument is more and more popular with people.

The existing physiotherapy equipment generally comprises an electrode physiotherapy equipment, a laser physiotherapy equipment and the like, and taking the laser physiotherapy equipment as an example, the existing physiotherapy equipment is generally used for laser irradiation and cannot achieve good physiotherapy effect, so that the experience of a user is poor.

Disclosure of Invention

In view of the above problems, the present application provides an output control method for an ultrasonic physiotherapy apparatus and an ultrasonic physiotherapy apparatus, which can control the time for providing voltage to an ultrasonic energy converter according to the temperature of the skin surface of a user to achieve the purpose of thermal therapy, thereby improving the experience of the user.

In a first aspect, an embodiment of the present application provides an output control method of an ultrasonic physiotherapy apparatus including an ultrasonic energy converter and an ultrasonic energy conversion drive unit, the method including: acquiring working parameters of the ultrasonic physiotherapy equipment, wherein the working parameters comprise a resonance frequency range of the ultrasonic energy converter; generating a pulse width modulation signal according to the working parameter, wherein the pulse width modulation signal is used for controlling the power and the frequency of the ultrasonic wave output by the ultrasonic energy converter; outputting the pulse width modulation signal to the ultrasonic energy conversion driving unit to enable the ultrasonic energy conversion driving unit to drive the ultrasonic energy converter according to the pulse width modulation signal, and enabling the frequency of the ultrasonic wave output by the ultrasonic energy converter to reach the resonance frequency range of the ultrasonic energy converter, wherein the frequency of the ultrasonic wave has a predetermined frequency deviation with the central frequency of the resonance frequency range.

In a second aspect, an embodiment of the present application provides an ultrasonic physiotherapy apparatus, including: the ultrasonic energy conversion device comprises an ultrasonic energy converter, a power supply unit, an ultrasonic energy conversion driving unit and a controller. The power supply unit is used for supplying voltage; the first end of the ultrasonic energy conversion driving unit is connected with the power supply unit, and the second end of the ultrasonic energy conversion driving unit is used for being connected with the ultrasonic energy converter; the controller is respectively connected with the power supply unit and a third end of the ultrasonic energy conversion driving unit, and is used for acquiring working parameters of the ultrasonic physiotherapy equipment, wherein the working parameters comprise a resonance frequency range of the ultrasonic energy converter; generating a pulse width modulation signal according to the working parameter, wherein the pulse width modulation signal is used for controlling the power and the frequency of the ultrasonic wave output by the ultrasonic energy converter; outputting the pulse width modulation signal to the ultrasonic energy conversion driving unit to enable the ultrasonic energy conversion driving unit to drive the ultrasonic energy converter according to the pulse width modulation signal, and enabling the frequency of the ultrasonic wave output by the ultrasonic energy converter to reach the resonance frequency range of the ultrasonic energy converter, wherein the frequency of the ultrasonic wave has a predetermined frequency deviation with the central frequency of the resonance frequency range.

The output control method and the ultrasonic wave physiotherapy equipment of ultrasonic wave physiotherapy equipment that this application embodiment provided, because the ultrasonic wave frequency of ultrasonic wave energy converter output can reach the resonant frequency scope of ultrasonic wave energy converter, just the ultrasonic wave frequency with there is predetermined frequency deviation in the central frequency of resonant frequency scope, therefore ultrasonic wave energy converter is when the output ultrasonic wave, still has certain generating heat to can reach the effect that ultrasonic wave physiotherapy adds the thermotherapy, promoted user's experience and felt.

These and other aspects of the present application will be more readily apparent from the following description of the embodiments.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 shows a connection block diagram of an ultrasonic physiotherapy apparatus.

Fig. 2 shows a circuit schematic of a power supply unit.

Fig. 3 shows a circuit schematic of a charge and discharge management circuit.

Fig. 4 shows a waveform diagram of a pulse width modulated signal.

Fig. 5 shows a schematic circuit diagram of an ultrasonic physiotherapy apparatus.

Fig. 6 shows another schematic circuit diagram of an ultrasonic physiotherapy apparatus.

Fig. 7 shows another connection block diagram of an ultrasonic therapy apparatus.

Fig. 8 shows a schematic circuit diagram of a second temperature detection unit.

Fig. 9 shows a schematic configuration of a cervical ultrasonic physiotherapy apparatus.

Fig. 10 is a flowchart illustrating an output control method of an ultrasonic physiotherapy apparatus.

Fig. 11 shows another flowchart of an output control method of the ultrasonic wave physiotherapy apparatus.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

In the case of a person who works for a long time while staying in the same posture for a long time or repeating the same motion for a long time, the person may feel muscular soreness when muscles of the shoulder, neck, waist, and the like are contracted for a long time. The appearance of the physiotherapy instrument can effectively relieve the ache of muscles of a human body, and at present, the adopted physiotherapy instrument comprises a laser physiotherapy instrument.

The inventor finds that the existing laser physiotherapy instrument is only used for emitting laser to perform cold light irradiation physiotherapy on a user when physiotherapy is performed. If only the laser physiotherapy instrument is adopted to emit laser to irradiate the part of the user needing physiotherapy, the user has no obvious feeling and the physiotherapy effect is not good.

Therefore, in order to improve the above-mentioned problems, the inventors have proposed an output control method of an ultrasonic therapy apparatus and an ultrasonic therapy apparatus in an embodiment of the present application, the ultrasonic therapy apparatus including an ultrasonic energy converter and an ultrasonic energy conversion drive unit, the method including: acquiring working parameters of the ultrasonic physiotherapy equipment, wherein the working parameters comprise a resonance frequency range of the ultrasonic energy converter; generating a pulse width modulation signal according to the working parameter, wherein the pulse width modulation signal is used for controlling the power and the frequency of the ultrasonic wave output by the ultrasonic energy converter; outputting the pulse width modulation signal to the ultrasonic energy conversion driving unit to enable the ultrasonic energy conversion driving unit to drive the ultrasonic energy converter according to the pulse width modulation signal, and enabling the frequency of the ultrasonic wave output by the ultrasonic energy converter to reach the resonance frequency range of the ultrasonic energy converter, wherein the frequency of the ultrasonic wave has a predetermined frequency deviation with the central frequency of the resonance frequency range.

By adopting the ultrasonic physiotherapy equipment and the output control method thereof, the power and the frequency of the ultrasonic wave can be adjusted according to the working parameters of the ultrasonic physiotherapy equipment, so that the preset frequency deviation exists between the frequency of the ultrasonic wave and the central frequency of the resonant frequency range of the ultrasonic equipment, the ultrasonic equipment is enabled to generate heat when the frequency deviation exists between the actual working frequency and the central frequency of the resonant frequency range of the ultrasonic wave, the heat treatment can be carried out on a user, and the user experience is improved.

Hereinafter, an output control method of an ultrasonic physiotherapy apparatus and an ultrasonic physiotherapy apparatus of an ultrasonic physiotherapy apparatus provided in an embodiment of the present application will be described in detail by way of specific embodiments.

Referring to fig. 1, an embodiment of the present application provides an ultrasonic physiotherapy apparatus 100, and the ultrasonic physiotherapy apparatus 100 may be a neck ultrasonic physiotherapy apparatus, a waist ultrasonic physiotherapy apparatus, a back ultrasonic physiotherapy apparatus, an eye ultrasonic physiotherapy apparatus, or the like.

The ultrasonic physiotherapy apparatus 100 includes an ultrasonic energy converter 110, a power supply unit 120, an ultrasonic energy conversion driving unit 130, and a controller 140.

The power supply unit 120 is configured to provide a voltage, and the ultrasonic energy conversion driving unit 130 is configured to have a first end connected to the power supply unit 120 and a second end connected to the ultrasonic energy converter 110. The controller 140 is connected to the power supply unit 120 and the third end of the ultrasonic energy conversion driving unit 130, respectively, and the controller 140 is configured to obtain working parameters of the ultrasonic physiotherapy apparatus 100, where the working parameters include a resonant frequency range of the ultrasonic energy converter 110; generating a Pulse Width Modulation (PWM) signal according to the operating parameter, wherein the PWM signal is used for controlling the power and frequency of the ultrasonic wave output by the ultrasonic energy converter 110; outputting the pulse width modulation signal to the ultrasonic energy conversion driving unit 130, so that the ultrasonic energy conversion driving unit 130 drives the ultrasonic energy converter 110 according to the pulse width modulation signal, and enabling the frequency of the ultrasonic wave output by the ultrasonic energy converter 110 to reach the resonance frequency range of the ultrasonic energy converter 110, wherein the frequency of the ultrasonic wave has a predetermined frequency deviation from the center frequency of the resonance frequency range.

The ultrasonic energy converter 110 is a device that converts input electric power into mechanical power (i.e., ultrasonic waves) and transmits the mechanical power. When the ultrasonic energy converter 110 is operated, the controller 140 outputs a PWM signal corresponding to a resonant frequency range of the ultrasonic energy converter 110 to the ultrasonic energy conversion driving module, so that the ultrasonic energy conversion driving module drives the ultrasonic energy converter to generate resonance, thereby generating ultrasonic waves; wherein the frequency of the PWM signal is within the resonant frequency range of the ultrasonic energy converter 110. The resonant frequency range of each ultrasonic transducer 110 has a center frequency, which may be, for example, 20KHz, 40KHz, 1MHz, 2MHz, or 5MHz, and when the frequency of the PWM signal is equal to the center frequency, the ultrasonic frequency output by the ultrasonic transducer 110 is equal to the center frequency, in which case the energy input to the ultrasonic transducer 110 is all converted into ultrasonic output, and the ultrasonic transducer 110 does not generate heat; when the frequency of the PWM signal is deviated from the center frequency by a predetermined frequency, the frequency of the ultrasonic wave output from the ultrasonic transducer 110 is also deviated from the center frequency by a predetermined frequency, in this case, the energy input to the ultrasonic transducer 110 is not completely converted into the ultrasonic wave output, the ultrasonic transducer 110 generates heat, that is, a part of the energy is converted into heat, and the difference between the ultrasonic output frequency and the center frequency is larger, the heating power is larger, and the power and the frequency of the ultrasonic wave output from the ultrasonic transducer 110 are adjusted, thereby achieving a good heating effect of the ultrasonic physiotherapy during the physiotherapy on the human body.

For example, in the present embodiment, the center frequency of the ultrasonic energy converter 110 is between 0.5MHz and 5 MHz.

The ultrasonic therapy apparatus 100 may include one or more ultrasonic transducers 110, and when the number of the ultrasonic transducers 110 is plural, a plurality of the ultrasonic transducers 110 may be connected to one ultrasonic transducer driving unit 130, and each ultrasonic transducer 110 of the plurality of the ultrasonic transducers 110 may be connected to one ultrasonic transducer driving unit 130. The plurality of ultrasound energy converters 110 may be further divided into a plurality of groups, and each group of ultrasound energy converters 110 may be connected to one ultrasound energy conversion driving unit 130, and it should be understood that each group of ultrasound energy converters 110 may include at least one ultrasound energy converter 110, and the number of ultrasound energy converters 110 included in each group of ultrasound energy converters 110 may be different.

If the ultrasonic physiotherapy apparatus 100 includes a plurality of ultrasonic transducers 110, the ultrasonic transducers 110 may emit the same or different ultrasonic frequencies, and may be set according to actual needs, and the number is not particularly limited herein.

In one embodiment, the ultrasonic energy converters 110 are multiple sets, the ultrasonic energy conversion driving unit 130 is multiple sets, each set of ultrasonic energy converters 110 corresponds to one ultrasonic energy conversion driving unit 130, each set of ultrasonic energy converters 110 includes at least one ultrasonic energy converter 110, and the controller 140 is configured to obtain power and frequency for controlling the ultrasonic waves output by each set of ultrasonic energy converters 110 according to the operating parameters respectively corresponding to each set of ultrasonic energy converters 110.

By adopting the arrangement, the ultrasonic thermotherapy can be respectively executed on a plurality of parts of the user which need to be heated, so that various different ultrasonic heating modes can be formed on different parts of the user.

The power and frequency of the ultrasound output by the ultrasound transducer 110 may be adjusted by adjusting the duty cycle of the pulse width modulated signal to adjust the length of time the ultrasound transducer 110 is operating per unit time to adjust the power of the ultrasound transducer 110. The frequency of the ultrasonic wave output from the ultrasonic wave energy converter 110 is adjusted by adjusting the frequency of the pulse width modulation signal.

The resonant frequency range of the ultrasonic transducer 110 means a range in which the frequency of the signal generator in the ultrasonic transducer 110 tracks the resonant frequency point of the transducer in the ultrasonic transducer 110 within a certain range, and the resonant frequency point is in which the ultrasonic transducer 110 operates in an optimal state. For example, the resonant frequency may range from 20kHz to 50kHz, or from 25kHz to 35kHz, without limitation, and is associated with the particular type of ultrasonic transducer 110 selected.

The power supply unit 120 may only include a power supply, may only include a power supply circuit connected to an external power supply, and may further include a power supply and a power supply circuit as long as a voltage can be supplied.

When the power supply unit 120 includes a power supply, the power supply may be a power supply with a variable output voltage, or a power supply for outputting a fixed voltage value, where the fixed voltage value output by the power supply unit 120 may be one fixed voltage value, or may be a plurality of fixed voltage values with different voltages. The setting is performed according to actual requirements, and is not particularly limited herein.

As an embodiment, if the power supply unit 120 includes a power supply outputting a fixed voltage value, the output voltage value is not particularly limited herein, and may be one or more of 3V, 3.3V, 5V, 12V, 24V, and the like.

The power source may specifically be a rechargeable battery, and it should be understood that when the power source includes a rechargeable battery, the power supply unit 120 may further include a power circuit and a charging and discharging management circuit, an input end of the power circuit is used for being connected to an external power source, an output end of the power circuit is connected to an input end of the charging and discharging management circuit, an output end of the charging and discharging management circuit is connected to an input end of the rechargeable battery, and an output end of the rechargeable battery is connected to the controller 140 and the ultrasonic energy conversion driving unit 130, respectively.

Referring to fig. 2 and fig. 3 in combination, fig. 2 is a schematic circuit diagram of the power supply unit 120, and fig. 3 is a schematic circuit diagram of the charge and discharge management circuit 124. Fig. 2 shows a charging interface 122a (the charging interface shown in fig. 2 is a TYPE-C interface) for connecting with an external power supply device, and fig. 3 shows a charging management chip 124a, which may be a TC4056A model.

It should be understood that fig. 2 and 3 are merely illustrative and that charge and discharge management circuit 124 and power supply circuit 122 may include more or fewer components. It should also be appreciated that the power circuit 122 shown in FIG. 2 may vary when the charging interfaces are different; when the charging management chip is different, the peripheral circuit shown in fig. 3 may also be changed accordingly, which is not limited herein.

The ultrasonic energy conversion driving unit 130 may include one or more devices selected from a resistor, a capacitor, an inductor, etc., as long as it can be used to drive the ultrasonic energy converter 110 according to the pulse width modulation signal, so that the frequency of the ultrasonic wave output by the ultrasonic energy converter 110 can reach the resonant frequency range of the ultrasonic energy converter 110.

The controller 140 may include one or more processing cores. The controller 140 may be coupled to various components within the overall ultrasound therapy device 100 (i.e., to the ultrasound transducer 110, the power supply unit 120, and the ultrasound transducer driver unit 130) using various interfaces and lines to perform various functions and process data of the ultrasound therapy device 100 by executing or executing instructions, programs, code sets, or instruction sets stored in its memory space or associated memory, as well as invoking data stored in its memory space or associated memory. Alternatively, the controller 140 may be implemented in hardware using at least one of Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), and Programmable Logic Array (PLA).

As an embodiment, the controller 140 may be a single chip microcomputer, as long as it can perform data processing and output a control signal.

The control signal may be a pulse width modulation signal or a control command for controlling the output power of the ultrasonic energy converter 110.

In one embodiment, the control signal comprises a pulse width modulated signal. The pwm signals corresponding to different operating parameters may have different high and low level periods (different frequencies), and different duty cycles. Therefore, when the ultrasonic energy converter 110 is controlled to operate according to the pulse width modulation signals corresponding to different operating parameters, the operating time of the ultrasonic energy converter 110 in the same time length range is different, and the output ultrasonic frequency is different.

Specifically, the frequency corresponding to the pwm signal may be, but is not limited to, any one of 45KHz, 50KHz or 55KHz, and the duty ratio of the pwm signal corresponding to different operating parameters is different, for example, may be any value between 0% and 99%.

The above-mentioned operating parameter may be one or more of the operating time of the ultrasonic energy converter 110, the power of the ultrasonic energy converter 110, the temperature of the surface of the object when the ultrasonic wave generated by the ultrasonic energy converter 110 acts on the object, and the like.

In one embodiment, the operating parameter includes an operating time period, which may be obtained by the controller 140 or by a timer coupled to the ultrasound energy converter 110.

As an embodiment, the operation parameter includes an output power of the ultrasonic energy converter 110, the output power of the ultrasonic energy converter 110 may be obtained by collecting an operation voltage of the ultrasonic energy converter 110 and a current per unit time collected by the current collecting device by the voltage collecting device, and accordingly, the ultrasonic therapy apparatus 100 may further include a voltage collecting device and a current collecting device for collecting the operation voltage and the current of the ultrasonic energy converter 110.

As another embodiment, the operation parameter includes the temperature of the ultrasound energy converter 110, which may be obtained by a temperature acquisition device, and accordingly, the ultrasound therapy apparatus 100 may further include a temperature acquisition module for acquiring the temperature of the ultrasound energy converter 110.

As still another embodiment, when the operation parameter includes a body surface temperature at an action position of the ultrasonic waves emitted from the ultrasonic energy converter 110 of the user using the ultrasonic therapy apparatus 100, the temperature may be obtained by a human body temperature detecting device, and accordingly, the ultrasonic therapy apparatus 100 may further include a temperature collecting module for collecting a temperature of a surface of the object when the object is acted on.

It should be understood that, when the controller 140 outputs the pulse width modulation signal obtained according to the operating parameter to the ultrasonic energy conversion driving unit 130, the operating parameter may be obtained in real time to obtain the pulse width modulation signal according to the operating parameter and output the pulse width modulation signal to the ultrasonic energy conversion driving unit 130. It is also possible to obtain the operating parameter every preset time interval (e.g., 10 seconds, 30 seconds, or one minute, etc.), so as to obtain the pulse width modulation signal according to the obtained operating parameter and output the pulse width modulation signal to the ultrasonic energy conversion driving unit 130.

By adopting the ultrasonic physiotherapy apparatus 100 of the present application, when the user uses the ultrasonic physiotherapy apparatus 100, because the skin surface temperature is low when the ultrasonic physiotherapy apparatus 100 starts to output the ultrasonic wave corresponding to the pulse width signal shown as a in fig. 4 to act on the skin surface of the user, and the purpose of thermal moxibustion cannot be achieved, the controller 140 may output the pulse width modulation signal with a higher duty ratio and a higher frequency as shown in b in fig. 4, so as to make the power output by the ultrasonic energy converter 110 higher, and simultaneously increase the duty ratio and the frequency of the ultrasonic wave, and further increase the frequency deviation between the output frequency and the center frequency of the ultrasonic energy converter 110, so as to increase the heating power of the ultrasonic energy converter 110, thereby gradually increasing the skin surface temperature of the human body, and gradually increasing the temperature of the corresponding ultrasonic energy converter 110, therefore, the controller 140 can adjust the pulse width modulation signal output by the controller 140 according to one or more of the usage duration, the temperature of the skin of the human body, and the temperature of the ultrasound energy converter 110, so that the controller 140 outputs the adjusted pulse width modulation signal as shown in b diagram in fig. 4, it can be seen that, in the b diagram in fig. 4, compared with the a diagram, the duty ratio of the pulse width modulation signal in the b diagram, the duty ratio of the pulse width modulation signal in the a diagram, is higher in the same high and low level period, i.e. by adjusting the time of the operation of the ultrasound energy converter 110 in one high and low level signal period, so as to increase the output power thereof, and in addition, the b diagram in fig. 4, is shorter than the period of the a diagram, has a higher frequency, and the deviation between the pulse width modulation signal corresponding to the b diagram and the center frequency is larger, so that when the ultrasound energy converter 110 outputs the ultrasound wave corresponding to the pulse width modulation signal shown in the b diagram, when the output ultrasonic waves irradiate on a human body, the more comfortable temperature of the human body can be achieved.

Through adopting the ultrasonic wave physiotherapy equipment 100 of this application, through according to working parameter, the pulse width modulation signal who generates the power and the frequency that are used for controlling the ultrasonic wave of ultrasonic wave energy converter 110 output, because the frequency of the ultrasonic wave of ultrasonic wave energy converter 110 output can reach the resonant frequency scope of ultrasonic wave energy converter 110, just the ultrasonic wave frequency with there is predetermined frequency deviation in the central frequency of resonant frequency scope, therefore ultrasonic wave energy converter 110 is when the output ultrasonic wave, still has certain generating heat, can reach the effect that ultrasonic wave physiotherapy adds the thermal therapy to user's experience has been promoted.

Referring to fig. 5, the ultrasonic physiotherapy apparatus 100 includes an ultrasonic energy converter 110, a power supply unit 120, an ultrasonic energy conversion driving unit 130, and a controller 140. The ultrasonic energy conversion driving unit 130 includes an electronic switch Q, a triangular inductor L, a diode D1, a first capacitor C1, a second capacitor C2, and a first resistor R1.

The control end of the electronic switch Q is connected to the controller 140 for receiving the pulse width modulation signal sent by the controller 140, the input end of the electronic switch Q is connected to the second end of the triangular inductor L, the anode of the diode D1 and the first end of the first capacitor C1, respectively, and the output end of the electronic switch Q is connected to the first end of the first resistor R1 and the first end of the ultrasonic energy converter 110, respectively; a first end of the triangular inductor L is connected to the power supply unit 120, and a third end of the triangular inductor L is connected to the second end of the ultrasonic energy converter 110 through the second capacitor C2; the cathode of the diode D1 is connected to the power supply unit 120, the second terminal of the first capacitor C1 is connected to the power supply unit 120, the second terminal of the second capacitor C2 is connected to ground, and the second terminal of the first resistor R1 is grounded.

The electronic switch Q can be a field effect transistor or a triode and can be set according to actual requirements. Wherein the electronic switch Q is configured to be turned on or off by the pwm signal, so that the ultrasound energy converter 110 outputs ultrasound when being turned on.

The triangular inductor L is used for boosting the voltage provided by the power supply to provide the electric energy for the ultrasonic energy converter 110.

The diode D1 is used to dissipate the potential difference between the first and second ends of the triangular inductor L when the electronic switch Q is turned off.

The first capacitor C1 is used for LC oscillation compensation of the triangular inductor L.

The second capacitor C2 is used for capacitance compensation of the ultrasound transducer 110.

The first resistor R1 is used for limiting current to protect the electronic switch Q.

In an embodiment, the ultrasonic energy conversion driving unit 130 further includes a second resistor R2, a first electrostatic tube D11, and a second electrostatic tube D12, wherein the second resistor R2 is connected between the cathode of the diode D1 and the power supply unit 120; a first end of the first electrostatic tube D11 is connected between the output end of the electronic switch Q and the first end of the ultrasonic energy converter 110, and a second end is grounded; the first end of the second electrostatic tube D12 is connected between the first end of the second capacitor C2 and the second end of the ultrasonic transducer 110, and the second end is grounded.

By arranging the first electrostatic tube D11, the second electrostatic tube D12 and the second resistor R2, the respective electrical components in the ultrasonic energy conversion driving circuit can be further protected.

Referring to fig. 6, the ultrasonic energy conversion driving unit 130 further includes a level holding sub-circuit 134, an input end of the level holding sub-circuit 134 is connected to the controller 140, and an output end of the level holding sub-circuit is connected to a control end of the electronic switch Q, for filtering noise in the pulse width modulation signal output by the controller 140, so as to maintain the waveform of the pulse width modulation signal.

In one implementation, the level holding sub-circuit 134 includes a third resistor R3, a fourth resistor R4, a first transistor P1, and a second transistor P2, wherein a first terminal of the third resistor R3 is connected to the controller 140, a second terminal of the third resistor R3 is connected to the base set of the first transistor P1 and the base set of the second transistor P2, respectively; the collector of the first triode P1 is connected with the power supply unit 120 through the fourth resistor R4, the emitter is connected with the emitter of the second triode P2 and the control unit of the electronic switch Q, and the collector of the second triode P2 is grounded.

In order to improve the safety of each electrical component in the level holding circuit, in this embodiment, the level holding sub-circuit 134 further includes a fifth resistor and a sixth resistor; the fifth resistor is connected between the emitter of the first transistor P1 and the control terminal of the electronic switch Q, the first terminal of the sixth resistor is connected to the second terminal of the third resistor R3, and the second terminal is connected to the emitter of the first transistor P1.

In one embodiment, the ultrasound therapy apparatus 100 further comprises a current feedback sub-circuit 136, wherein a first terminal of the current feedback sub-circuit 136 is connected to the controller 140, a second terminal of the current feedback sub-circuit 136 is connected to the output terminal of the electronic switch Q, and the controller 140 is further configured to obtain the current flowing from the current feedback sub-circuit 136 to the control terminal of the electronic switch Q.

By providing the current feedback sub-circuit 136, it is possible to feed back the current signal flowing through the switch module to the controller 140, so that the controller 140 can adjust the duty cycle, the frequency, and the like thereof according to the current signal.

Specifically, the current feedback sub-circuit 136 includes a seventh resistor R7, an eighth resistor R8, a third capacitor C3, and a fourth capacitor C4, wherein a first end of the seventh resistor R7 is connected between the output end of the level holding sub-circuit 134 and the control end of the electronic switch Q, and a second end of the seventh resistor R7 is connected to the first end of the eighth resistor R8 and the first end of the third capacitor C3, respectively; a second terminal of the eighth resistor R8 is connected to the feedback terminal of the controller 140 and a first terminal of the fourth capacitor C4, respectively, a second terminal of the third capacitor C3 is grounded, and a second terminal of the fourth capacitor C4 is grounded.

Therefore, by using the ultrasonic energy conversion driving unit 130 of the present application, and by providing the electronic switch Q, the triangular inductor L, the diode D1, the first capacitor C1, the second capacitor C2 and the first resistor R1, the ultrasonic energy conversion driving unit 130 can be turned on or off under the action of the pulse width modulation signal when the controller 140 outputs the pulse width modulation signal to the ultrasonic energy conversion driving unit 130, the triangular inductor L is used for boosting the voltage provided by the power supply to provide the electric energy for the ultrasonic energy converter 110, the first capacitor C1 is used for LC oscillation compensation of the triangular inductor L, the second capacitor C2 is used for capacitance compensation of the ultrasonic energy converter 110, the diode D1 is used for consuming the potential difference between the first end and the second end of the triangular inductor L when the electronic switch Q is turned off, the first resistor R1 is used for limiting current to protect the electronic switch Q, so that the ultrasonic transducer 110 can be stably driven by the ultrasonic transducer driving unit 130 to output ultrasonic waves to a user, so as to achieve the purpose of thermal therapy, thereby improving the experience of the user.

Referring to fig. 7, an ultrasound therapy apparatus 100 is further provided, in which the ultrasound therapy apparatus 100 includes an ultrasound energy converter 110, a power supply unit 120, an ultrasound energy conversion driving unit 130, a controller 140, and a first temperature collecting unit 150, and the ultrasound energy converter 110 includes an ultrasound energy conversion sheet.

Wherein the power supply unit 120 is used for providing voltage; the first end of the ultrasonic energy conversion driving unit 130 is connected to the power supply unit 120, and the second end is used for being connected to the ultrasonic energy converter 110; the ultrasonic physiotherapy apparatus 100 further includes a first temperature acquisition unit 150, the first temperature acquisition unit 150 is disposed in the ultrasonic energy conversion sheet, and the first temperature acquisition unit 150 is connected to the controller 140, the first temperature acquisition unit 150 is configured to acquire the temperature of the ultrasonic energy conversion sheet, the controller 140 is further configured to receive the first temperature, and output a pulse width modulation signal obtained according to the first temperature to the ultrasonic energy conversion driving unit 130. The controller 140 is further configured to generate a pulse width modulation signal according to the operating parameter, wherein the pulse width modulation signal is used to control the power and frequency of the ultrasonic wave output by the ultrasonic energy converter 110; outputting the pulse width modulation signal to the ultrasonic energy conversion driving unit 130, so that the ultrasonic energy conversion driving unit 130 drives the ultrasonic energy converter 110 according to the pulse width modulation signal, and enabling the frequency of the ultrasonic wave output by the ultrasonic energy converter 110 to reach the resonance frequency range of the ultrasonic energy converter 110, wherein the frequency of the ultrasonic wave has a predetermined frequency deviation from the center frequency of the resonance frequency range.

The first temperature acquisition unit 150 may include a human body infrared temperature measurement module, a contact temperature measurement device, or a temperature detection sensor.

In one possible embodiment, the controller 140 may adjust the duty cycle and/or frequency of the pwm signal according to the first temperature when adjusting the pwm signal according to the first temperature. Specifically, if the first temperature is higher than a preset first temperature threshold, the duty ratio of the pulse width modulation signal is reduced, and/or the frequency deviation is reduced; if the first temperature is lower than a preset second temperature threshold value, increasing the duty ratio of the pulse width modulation signal and/or increasing the frequency deviation.

In this embodiment, the first temperature threshold may be 50 ℃, 55 ℃, 48 ℃, or 45 ℃ or the like. The second temperature threshold may be 37 ℃, 36 ℃ or 38 ℃ or the like, which is performed according to actual requirements, and is not specifically limited herein.

In another possible implementation manner, when the controller 140 adjusts the pulse width modulation signal according to the first temperature, it may further obtain a corresponding relationship between the duty ratio and the frequency of the pulse width modulation signal and the first temperature; and acquiring the duty ratio and the frequency of the pulse width modulation signal according to the first temperature and a preset corresponding relation, and generating a corresponding pulse width modulation signal.

The controller 140 stores different temperatures and duty ratios and frequencies corresponding to the different temperatures, and when the temperature is obtained, the pulse width modulation signal can be generated according to the correspondence between the temperature and the duty ratios and the frequencies.

By acquiring a corresponding pulse width modulation signal according to the first temperature and outputting the pulse width modulation signal to the ultrasonic energy conversion driving unit 130, the ultrasonic energy conversion driving unit 130 controls the time for the power supply unit 120 to supply voltage to the ultrasonic energy converter 110 and the frequency of the output ultrasonic wave according to the pulse width modulation signal. Therefore, the output power and the frequency of the ultrasonic energy converter 110 in unit time can be adjusted, the frequency deviation between the output ultrasonic frequency and the ultrasonic energy converter 110 is increased, the thermotherapy effect on the human body is achieved, and the experience of a user is improved.

In order to further make the obtained pulse width modulation signal more reasonable, so as to make the time for controlling the power supply unit 120 to supply the voltage to the ultrasonic energy converter 110 by using the ultrasonic energy conversion driving unit 130 based on the pulse width modulation signal more accurate, in this embodiment, the ultrasonic physiotherapy apparatus 100 further includes a second temperature acquisition unit 160; the second temperature acquisition unit 160 is connected to the controller 140, and is configured to detect a second temperature of a heat dissipation component, where the heat dissipation component is disposed in the ultrasonic energy converter 110 and is configured to dissipate heat of the ultrasonic energy converter 110, and the controller 140 is further configured to receive the second temperature and output a pulse width modulation signal obtained according to the first temperature and the second temperature to the ultrasonic energy conversion driving unit 130.

The second temperature collecting unit 160 may include any one of a temperature sensor, a contact temperature measuring device, and the like.

Referring to fig. 8, fig. 8 is a schematic circuit diagram of a second temperature acquisition unit 160, wherein the second temperature acquisition unit 160 includes a thermistor R11 and a voltage divider resistor R12, a first end of the voltage divider resistor R12 is connected to the power supply unit 120, a second end of the voltage divider resistor R12 is connected to the first end of the thermistor R11 and the controller 140, and a second end of the thermistor R11 is grounded.

The resistance of the voltage dividing resistor R12 may be any one of 10K ohm, 20K ohm, or 100K ohm, which is not specifically limited in this embodiment and may be selected according to actual requirements.

In order to obtain a more accurate temperature of the second temperature acquisition unit 160, in this embodiment, the second temperature acquisition unit 160 further includes a fifth capacitor C5, a first end of the fifth capacitor C5 is connected between the first end of the thermistor R11 and the second end of the voltage divider R12, and a second end of the fifth capacitor C5 is grounded.

The fifth capacitor C5 is a filter capacitor, and can be used to smooth the voltage signal output by the second temperature detection module to the controller 140.

By arranging the first temperature acquisition unit 150 and the second temperature acquisition unit 160, it is possible to obtain corresponding pulse width modulation signals according to the first temperature and the second temperature, and output the pulse width modulation signals to the ultrasonic energy conversion driving unit 130, so that the ultrasonic energy conversion driving unit 130 controls the time for the power supply unit 120 to supply voltage to the ultrasonic energy converter 110 according to the pulse width modulation signals to adjust the frequency of the ultrasonic waves. Therefore, the output power of the ultrasonic energy converter 110 in unit time can be adjusted, the ultrasonic waves output by the ultrasonic energy converter 110 can play a role in carrying out thermal therapy on a human body, the duty ratio of a pulse width modulation signal can be automatically reduced to reduce the output power of the ultrasonic energy converter 110 when the temperature is higher than the comfortable temperature of the human body or the temperature of the ultrasonic energy converter 110 is too high in the whole process of using the ultrasonic physiotherapy equipment 100 by a user, and the difference between the frequency of the ultrasonic waves and the central frequency is reduced by the frequency of the ultrasonic waves, so that the comfortable temperature of the human body is achieved. And when the temperature lower than the comfortable temperature of the human body or the temperature of the ultrasonic energy converter 110 is too low, the duty ratio of the pulse width modulation signal is automatically increased, the output power of the ultrasonic energy converter 110 is improved, and the frequency of the ultrasonic wave is increased to increase the difference between the frequency of the ultrasonic wave and the central frequency so as to carry out thermal moxibustion, so that the comfortable temperature of the human body is achieved in the physiotherapy process, the ultrasonic physiotherapy equipment 100 can simultaneously carry out two functions of ultrasonic diagnosis and treatment and thermal moxibustion, and the experience of a user is improved.

Referring to fig. 9, fig. 9 is a diagram illustrating an example of an ultrasound therapy apparatus 100 provided in an embodiment of the present application as a neck ultrasound therapy apparatus, where the ultrasound therapy apparatus 100 includes a controller 140, an ultrasound energy conversion driving unit 130, a massage bracket 500, and an ultrasound energy converter 110, where the massage bracket 500 can be worn on the neck of a human body, the ultrasound energy converter 110 is disposed on the massage bracket facing the neck of the human body, and the controller 140 is electrically connected to the ultrasound energy converter 110 through the ultrasound energy conversion driving unit 130, and is configured to control the power supply unit 120 to supply a voltage to the ultrasound energy converter 110 through the ultrasound energy conversion driving unit 130, so that the ultrasound energy converter 110 emits ultrasound.

Alternatively, the controller 140 and the ultrasonic energy conversion driving unit 130 may be disposed inside the massage bracket, or may be disposed inside the ultrasonic energy converter 110. Alternatively, the number of the ultrasonic energy converter 110 may be one or more.

Alternatively, as shown in fig. 9, the plurality of ultrasonic transducers 110 may be provided, and the plurality of ultrasonic transducers 110 may be respectively disposed on the electrode pads of the massage bracket.

It should be understood that a plurality of through holes may be formed on the electrode sheet, a plurality of ultrasound energy converters 110 may be disposed in the massage bracket, and each through hole may correspond to at least one ultrasound energy converter 110, so that the light emitted from the ultrasound energy converter 110 corresponding to the through hole can be emitted through the through hole.

Specifically, when the ultrasonic therapy apparatus 100 is worn on the neck of the user, the light emitted from each ultrasonic transducer 110 may be irradiated to the skin surface of the user through the corresponding through hole.

It should be understood that the ultrasonic therapy apparatus 100 shown in fig. 9 is merely illustrative, and the ultrasonic therapy apparatus 100 of the present application may also be a waist ultrasonic therapy apparatus 100, a back ultrasonic therapy apparatus 100, an eye ultrasonic therapy apparatus 100, etc. other than the neck ultrasonic therapy apparatus 100, and detailed description thereof will not be given.

Referring to fig. 10, an embodiment of the present application provides an output control method of an ultrasound therapy apparatus 100, which is applicable to a controller 140 of the ultrasound therapy apparatus 100, and the method may include:

step S110: the operating parameters of the ultrasonic physiotherapy apparatus 100 are acquired, including the resonance frequency range of the ultrasonic energy converter 110.

Step S120: a pulse width modulation signal is generated according to the operating parameters, and the pulse width modulation signal is used for controlling the power and frequency of the ultrasonic wave output by the ultrasonic energy converter 110.

In one embodiment, the ultrasound energy converters 110 are in a plurality of groups, the ultrasound energy conversion driving unit 130 is in a plurality of groups, each group of ultrasound energy converters 110 corresponds to one ultrasound energy conversion driving unit 130, each group of ultrasound energy converters 110 includes at least one ultrasound energy converter 110, and the generating the pulse width modulation signal according to the operating parameter includes: according to the operating parameters respectively corresponding to the sets of ultrasonic energy converters 110, a pulse width modulation signal for controlling the power and frequency of the ultrasonic waves output by each set of ultrasonic energy converters 110 is obtained.

Step S130: the pulse width modulation signal is output to the ultrasonic energy conversion driving unit 130, so that the ultrasonic energy conversion driving unit 130 drives the ultrasonic energy converter 110 according to the pulse width modulation signal, and the frequency of the ultrasonic wave output by the ultrasonic energy converter 110 can reach the resonance frequency range of the ultrasonic energy converter 110.

Wherein the frequency of the ultrasonic wave has a predetermined frequency deviation from a center frequency of the resonance frequency range.

Referring to fig. 11, in one possible embodiment, the ultrasound energy converter 110 includes an ultrasound energy conversion sheet, and the ultrasound therapy apparatus 100 further includes a first temperature collecting unit 150, wherein the first temperature collecting unit 150 is configured to collect a temperature of the ultrasound energy conversion sheet; the method further comprises the following steps:

step S140: acquiring a first temperature acquired by the first temperature acquisition unit 150, wherein the first temperature is the temperature of the ultrasonic energy conversion sheet acquired by the first temperature acquisition unit 150.

Step S150: the duty cycle and/or frequency of the pulse width modulated signal is adjusted in accordance with the first temperature.

In one embodiment, said adjusting the pulse width modulated signal according to the first temperature comprises: if the first temperature is higher than a preset first temperature threshold value, reducing the duty ratio of a pulse width modulation signal and/or reducing the frequency deviation; if the first temperature is lower than a preset second temperature threshold value, increasing the duty ratio of the pulse width modulation signal and/or increasing the frequency deviation.

In another possible implementation manner, in an implementation manner, the adjusting the duty cycle and/or the frequency of the pulse width modulation signal according to the first temperature includes: acquiring a corresponding relation between duty ratio and frequency for representing the first temperature and the pulse width modulation signal; and acquiring the duty ratio and the frequency of the pulse width modulation signal according to the first temperature and a preset corresponding relation, and generating a corresponding pulse width modulation signal.

For the detailed description of the above steps, reference may be made to the detailed description of the super-therapeutic apparatus, which is not repeated herein.

It should be understood that, since the controller 140 is configured to perform the specific steps in steps S110-S130 or steps S210-S240 as in the above embodiments, the controller 140 may include one or more processing cores, accordingly. The controller 140 connects various parts within the entire ultrasonic physiotherapy apparatus 100 using various interfaces and lines, and performs various functions of the ultrasonic physiotherapy apparatus 100 and processes data by executing or executing instructions, programs, code sets, or instruction sets stored in the memory, and calling data stored in the memory. Alternatively, the controller 140 may be implemented in hardware using at least one of Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), and Programmable Logic Array (PLA). The controller 140 may be integrated with one or a combination of a Central Processing Unit (CPU) 140, a Graphics Processing Unit (GPU) 140, a modem, and the like. Wherein, the CPU mainly processes an operating system, a user interface, an application program and the like; the GPU is used for rendering and drawing display content; the modem is used to handle wireless communications. It is understood that the modem may not be integrated into the controller 140, but may be implemented by a communication chip.

The Memory may include a Random Access Memory (RAM) or a Read-Only Memory (Read-Only Memory). The memory may be used to store an instruction, a program, code, a set of codes, or a set of instructions. The memory may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing an operating system, instructions for implementing at least one function (such as a touch function, a pulse signal output function, etc.), instructions for implementing various method embodiments described below, and the like. The data storage area can also store data created by the terminal in use (such as data of output frequency, duration, output pulse width and the like of an electric pulse signal), and the like.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. An output control method of an ultrasonic physiotherapy apparatus, characterized in that the ultrasonic physiotherapy apparatus includes an ultrasonic energy converter and an ultrasonic energy conversion drive unit, the method comprising:

acquiring working parameters of the ultrasonic physiotherapy equipment, wherein the working parameters comprise a resonance frequency range of the ultrasonic energy converter;

generating a pulse width modulation signal according to the working parameter, wherein the pulse width modulation signal is used for controlling the power and the frequency of the ultrasonic wave output by the ultrasonic energy converter;

outputting the pulse width modulation signal to the ultrasonic energy conversion driving unit to enable the ultrasonic energy conversion driving unit to drive the ultrasonic energy converter according to the pulse width modulation signal, and enabling the frequency of the ultrasonic wave output by the ultrasonic energy converter to reach the resonance frequency range of the ultrasonic energy converter, wherein the frequency of the ultrasonic wave has a predetermined frequency deviation with the central frequency of the resonance frequency range.

2. The method of claim 1, wherein the ultrasound energy converter comprises an ultrasound energy conversion patch, and the ultrasound therapy device further comprises a first temperature acquisition unit for acquiring a temperature of the ultrasound energy conversion patch;

the method further comprises the following steps:

acquiring a first temperature acquired by the first temperature acquisition unit, wherein the first temperature is the temperature of the ultrasonic energy conversion sheet acquired by the first temperature acquisition unit;

the pulse width modulated signal is adjusted according to the first temperature.

3. The method of claim 2, wherein adjusting the pulse width modulated signal based on the first temperature comprises:

if the first temperature is higher than a preset first temperature threshold value, reducing the duty ratio of a pulse width modulation signal and/or reducing the frequency deviation;

if the first temperature is lower than a preset second temperature threshold value, increasing the duty ratio of the pulse width modulation signal and/or increasing the frequency deviation.

4. The method of claim 2, wherein adjusting the pulse width modulated signal as a function of the first temperature comprises:

acquiring a corresponding relation between duty ratio and frequency for representing the first temperature and the pulse width modulation signal;

and acquiring the duty ratio and the frequency of the pulse width modulation signal according to the first temperature and a preset corresponding relation, and generating a corresponding pulse width modulation signal.

5. The method of any one of claims 1-4, wherein the plurality of ultrasound transducers is a plurality of sets, the plurality of ultrasound transducer driver units is a plurality of ultrasound transducer driver units, each set of ultrasound transducers corresponds to one ultrasound transducer driver unit, each set of ultrasound transducers comprises at least one ultrasound transducer, and the generating the pulse width modulated signal based on the operating parameter comprises:

and obtaining pulse width modulation signals for controlling the power and frequency of the ultrasonic waves output by each group of ultrasonic energy converters according to the working parameters respectively corresponding to each group of ultrasonic energy converters.

6. An ultrasonic physiotherapy apparatus characterized by comprising:

an ultrasonic energy converter;

a power supply unit for supplying a voltage;

the first end of the ultrasonic energy conversion driving unit is connected with the power supply unit, and the second end of the ultrasonic energy conversion driving unit is used for being connected with the ultrasonic energy converter;

the controller is respectively connected with the power supply unit and the third end of the ultrasonic energy conversion driving unit, and is used for acquiring working parameters of the ultrasonic physiotherapy equipment, wherein the working parameters comprise the resonance frequency range of the ultrasonic energy converter; generating a pulse width modulation signal according to the working parameter, wherein the pulse width modulation signal is used for controlling the power and the frequency of the ultrasonic wave output by the ultrasonic energy converter; outputting the pulse width modulation signal to the ultrasonic energy conversion driving unit to enable the ultrasonic energy conversion driving unit to drive the ultrasonic energy converter according to the pulse width modulation signal, and enabling the frequency of the ultrasonic wave output by the ultrasonic energy converter to reach the resonance frequency range of the ultrasonic energy converter, wherein the frequency of the ultrasonic wave has a predetermined frequency deviation with the central frequency of the resonance frequency range.

7. The ultrasonic physiotherapy apparatus according to claim 6, wherein the ultrasonic energy conversion drive unit includes an electronic switch, a triangular inductor, a diode, a first capacitor, a second capacitor, and a first resistor;

the control end of the electronic switch is connected with the controller and used for receiving a pulse width modulation signal sent by the controller, the input end of the electronic switch is respectively connected with the second end of the triangular inductor, the anode of the diode and the first end of the first capacitor, and the output end of the electronic switch is respectively connected with the first end of the first resistor and the first end of the ultrasonic energy converter;

the first end of the triangular inductor is connected with the power supply unit, and the third end of the triangular inductor is connected with the second end of the ultrasonic energy converter through the second capacitor;

the cathode of the diode is connected with the power supply unit, the second end of the first capacitor is connected with the power supply unit, the second end of the second capacitor is connected with the ground, and the second end of the first resistor is grounded.

8. The ultrasonic physiotherapy apparatus according to claim 7, wherein the ultrasonic energy conversion drive unit further comprises a second resistor, a first electrostatic tube, and a second electrostatic tube, the second resistor being connected between the cathode of the diode and the power supply unit;

the first end of the first electrostatic tube is connected between the output end of the electronic switch and the first end of the ultrasonic energy converter, and the second end of the first electrostatic tube is grounded;

the first end of the second electrostatic tube is connected between the first end of the second capacitor and the second end of the ultrasonic energy converter, and the second end of the second electrostatic tube is grounded.

9. The ultrasonic physiotherapy apparatus of claim 7, wherein the ultrasonic energy conversion drive unit further comprises a level holding sub-circuit, an input terminal of the level holding sub-circuit is connected to the controller, and an output terminal of the level holding sub-circuit is connected to the control terminal of the electronic switch, for filtering noise in the pulse width modulation signal outputted from the controller to hold the waveform of the pulse width modulation signal.

10. The ultrasonic physiotherapy apparatus according to claim 9, wherein the level holding sub-circuit includes a third resistor, a fourth resistor, a first transistor, and a second transistor, a first terminal of the third resistor is connected to the controller, and a second terminal thereof is connected to the base set of the first transistor and the base set of the second transistor, respectively;

the collector of the first triode is connected with the power supply unit through the fourth resistor, the emitter of the first triode is connected with the emitter of the second triode and the control unit of the electronic switch, and the collector of the second triode is grounded.

11. The ultrasonic physiotherapy apparatus according to claim 10, wherein the level holding sub-circuit further includes a fifth resistor and a sixth resistor;

the fifth resistor is connected between the emitter of the first triode and the control end of the electronic switch, the first end of the sixth resistor is connected with the second end of the third resistor, and the second end of the sixth resistor is connected with the emitter of the first triode.

12. The ultrasonic physiotherapy apparatus of claim 9, wherein the acoustic wave energy conversion driver module further comprises a current feedback sub-circuit, a first terminal of the current feedback sub-circuit is connected to the controller, a second terminal of the current feedback sub-circuit is connected to the output terminal of the electronic switch, and the controller is further configured to obtain the current flowing from the current feedback sub-circuit to the control terminal of the electronic switch.

13. The ultrasonic physiotherapy apparatus of claim 12, wherein the current feedback sub-circuit comprises a seventh resistor, an eighth resistor, a third capacitor and a fourth capacitor, a first terminal of the seventh resistor is connected between the output terminal of the level holding sub-circuit and the control terminal of the electronic switch, and a second terminal of the seventh resistor is connected to the first terminal of the eighth resistor and the first terminal of the third capacitor, respectively;

and the second end of the eighth resistor is connected with the feedback end of the controller and the first end of the fourth capacitor respectively, the second end of the third capacitor is grounded, and the second end of the fourth capacitor is grounded.

14. The ultrasonic physiotherapy apparatus according to claim 6, wherein the ultrasonic energy converter comprises an ultrasonic energy conversion sheet, the ultrasonic physiotherapy apparatus further comprises a first temperature acquisition unit, the first temperature acquisition unit is disposed on the ultrasonic energy conversion sheet and is connected to the controller, the first temperature acquisition unit is configured to acquire the temperature of the ultrasonic energy conversion sheet, and the controller is further configured to receive the first temperature and output a pulse width modulation signal obtained according to the first temperature to the ultrasonic energy conversion driving unit.

15. The ultrasonic physiotherapy apparatus of claim 14, wherein the first temperature acquisition unit includes a thermistor and a pull-up resistor, a first end of the pull-up resistor is connected to the power supply unit, a second end of the pull-up resistor is connected to the first end of the thermistor and the controller, respectively, and a second end of the thermistor is grounded.

16. The ultrasonic physiotherapy apparatus according to claim 15, wherein the first temperature acquisition unit further comprises a fifth capacitor, a first end of the fifth capacitor is connected between the first end of the thermistor and the second end of the pull-up resistor, and a second end of the fifth capacitor is grounded.

17. The ultrasonic physiotherapy apparatus according to claim 14, further comprising a second temperature acquisition unit connected to the controller and configured to acquire a second temperature of the surface of the object when the ultrasonic energy converter transmits the ultrasonic waves to the surface of the object, the controller further configured to receive the second temperature and output a pulse width modulation signal obtained from the first temperature and the second temperature to the ultrasonic energy conversion drive unit.

18. The ultrasonic physiotherapy apparatus of claim 17, wherein the second temperature acquisition unit comprises a human body infrared thermometry module, and the human body infrared thermometry module is connected with the controller.

19. The ultrasonic physiotherapy apparatus according to any one of claims 6 to 18, wherein the ultrasonic energy transducer is plural, and the ultrasonic energy transducer driving unit is connected to the plural ultrasonic energy transducers, respectively.

20. An ultrasound physiotherapy apparatus according to any one of claims 6 to 18, wherein the ultrasound transducer has a centre frequency between 0.5MHz and 5 MHz.