CN113713278B - Output control method of ultrasonic physiotherapy equipment and ultrasonic physiotherapy equipment - Google Patents
Output control method of ultrasonic physiotherapy equipment and ultrasonic physiotherapy equipment Download PDFInfo
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- CN113713278B CN113713278B CN202110921484.3A CN202110921484A CN113713278B CN 113713278 B CN113713278 B CN 113713278B CN 202110921484 A CN202110921484 A CN 202110921484A CN 113713278 B CN113713278 B CN 113713278B
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- 238000000554 physical therapy Methods 0.000 title claims abstract description 104
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000006243 chemical reaction Methods 0.000 claims abstract description 88
- 239000003990 capacitor Substances 0.000 claims description 36
- 238000002560 therapeutic procedure Methods 0.000 claims description 15
- 238000002604 ultrasonography Methods 0.000 claims description 14
- 238000009529 body temperature measurement Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 12
- 238000012545 processing Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 230000006870 function Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 208000008035 Back Pain Diseases 0.000 description 2
- 206010028836 Neck pain Diseases 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000000015 thermotherapy Methods 0.000 description 2
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003387 muscular Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N7/00—Ultrasound therapy
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N7/00—Ultrasound therapy
- A61N7/02—Localised ultrasound hyperthermia
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Abstract
The application discloses an output control method of ultrasonic physiotherapy equipment and ultrasonic physiotherapy equipment, wherein the ultrasonic physiotherapy equipment comprises an ultrasonic energy converter and an ultrasonic energy conversion driving unit, and the method comprises the following steps: 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 ultrasonic waves 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 from the center frequency of the resonance frequency range. The method realizes the purpose of adjusting the power and the frequency of the ultrasonic waves according to the working parameters so as to achieve the heat treatment, and improves the experience of users.
Description
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 work in front of a computer for a long time, neck and back pain can be caused, and the appearance of the physiotherapy instrument can effectively relieve the neck and back pain of people, so that the physiotherapy instrument is more and more popular with people.
The conventional physiotherapy instrument generally comprises an electrode physiotherapy instrument, a laser physiotherapy instrument and the like, and is used for laser irradiation in the conventional physiotherapy instrument as an example, and cannot achieve a 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 of an ultrasonic physiotherapy apparatus and an ultrasonic physiotherapy apparatus, which can control the time of providing voltage to an ultrasonic energy converter according to the temperature of the skin surface of a user so as 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 driving 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 ultrasonic waves output by the ultrasonic energy converter; and outputting the 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 enables the frequency of ultrasonic waves output by the ultrasonic energy converter to reach the resonance frequency range of the ultrasonic energy converter, wherein the frequency of the ultrasonic waves has a preset frequency deviation from the center 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 converter, power supply unit, ultrasonic energy conversion drive unit and controller. The power supply unit is used for providing 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 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 resonant 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 ultrasonic waves output by the ultrasonic energy converter; and outputting the 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 enables the frequency of ultrasonic waves output by the ultrasonic energy converter to reach the resonance frequency range of the ultrasonic energy converter, wherein the frequency of the ultrasonic waves has a preset frequency deviation from the center frequency of the resonance frequency range.
According to the output control method of the ultrasonic physiotherapy equipment and the ultrasonic physiotherapy equipment, 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 the preset frequency deviation from the center frequency of the resonance frequency range, so that the ultrasonic energy converter outputs the ultrasonic wave and generates certain heat, the effect of ultrasonic physiotherapy and heating therapy can be achieved, and the experience of a user is improved.
These and other aspects of the application will be more readily apparent from the following description of the embodiments.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 shows a connection block diagram of an ultrasonic physiotherapy apparatus.
Fig. 2 shows a schematic circuit diagram of a power supply unit.
Fig. 3 shows a schematic circuit diagram of a charge-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 device.
Fig. 6 shows another schematic circuit diagram of an ultrasound physiotherapy apparatus.
Fig. 7 shows another connection block diagram of an ultrasound physiotherapy apparatus.
Fig. 8 shows a schematic circuit diagram of a second temperature detection unit.
Fig. 9 shows a schematic structural view of a neck ultrasonic physiotherapy apparatus.
Fig. 10 shows a flow chart of an output control method of the ultrasonic physiotherapy apparatus.
Fig. 11 shows another flow chart of an output control method of an ultrasonic physiotherapy apparatus.
Detailed Description
In order to enable those skilled in the art to better understand the present application, the following description will make clear and complete descriptions of the technical solutions according to the embodiments of the present application with reference to the accompanying drawings.
For a person working on a table for a long time, the person may feel muscular soreness when muscles such as shoulders, neck, waist and the like are in a contracted state for a long time due to the same posture maintained for a long time or the same action repeated 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 when physiotherapy is carried out, so as to carry out cold light irradiation physiotherapy on a user. If only the laser physiotherapy instrument is used for emitting laser to irradiate the part of the user needing physiotherapy, the user does not feel obvious, and the physiotherapy effect is poor.
Accordingly, in order to improve the above-described problems, the inventors have proposed an output control method of an ultrasonic physiotherapy apparatus including an ultrasonic energy converter and an ultrasonic energy conversion driving unit in an embodiment of the present application, 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 ultrasonic waves output by the ultrasonic energy converter; and outputting the 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 enables the frequency of ultrasonic waves output by the ultrasonic energy converter to reach the resonance frequency range of the ultrasonic energy converter, wherein the frequency of the ultrasonic waves has a preset frequency deviation from the center 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 waves can be adjusted according to the working parameters of the ultrasonic physiotherapy equipment, so that the frequency of the ultrasonic waves and the central frequency of the resonance frequency range of the ultrasonic equipment have preset frequency deviation, the ultrasonic equipment heats when the frequency deviation exists between the actual working frequency and the central frequency of the resonance frequency range of the ultrasonic equipment, the user can be subjected to heat treatment, and the experience of the user is improved.
The output control method of the ultrasonic physiotherapy apparatus and the ultrasonic physiotherapy apparatus provided by the embodiments of the present application will be described in detail below 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 therapy 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, and a first end of the ultrasonic energy conversion driving unit 130 is connected to the power supply unit 120, and a second end is configured to be connected to the ultrasonic energy converter 110. The controller 140 is respectively connected to the third terminals of the power supply unit 120 and the ultrasonic energy conversion driving unit 130, and the controller 140 is configured to obtain the working parameters of the ultrasonic physiotherapy device 100, where the working parameters include the resonant frequency range of the ultrasonic energy converter 110; generating a pulse width modulation signal (PWM) for controlling power and frequency of the ultrasonic wave output from the ultrasonic energy converter 110 according to the operation parameter; 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 enables the frequency of the ultrasonic wave output from 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. In operation of the ultrasonic energy converter 110, 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 to cause the ultrasonic energy conversion driving module to drive the ultrasonic energy converter to resonate, thereby generating ultrasonic waves; wherein the frequency of the PWM signal is within the resonant frequency range of the ultrasonic energy converter 110. The resonance frequency range of each ultrasonic energy converter 110 has a center frequency, for example, 20KHz, 40KHz, 1MHz, 2MHz or 5MHz, when the frequency of the PWM signal is equal to the center frequency, the ultrasonic frequency output by the ultrasonic energy converter 110 is equal to the center frequency, in which case the energy input to the ultrasonic energy converter 110 is converted into ultrasonic output, and the ultrasonic energy converter 110 does not generate heat; when the frequency of the PWM signal and the center frequency have a predetermined frequency deviation, the ultrasonic frequency output by the ultrasonic energy converter 110 and the center frequency also have a predetermined frequency deviation, in this case, the energy input into the ultrasonic energy converter 110 is not completely converted into ultrasonic output, the ultrasonic energy converter 110 generates heat, that is, part of the energy is converted into heat, and the larger the difference between the ultrasonic output frequency and the center frequency is, the larger the heating power is, and by adjusting the power and the frequency of the ultrasonic wave output by the ultrasonic energy converter 110, a good ultrasonic physiotherapy and hyperthermia effect can be achieved when physiotherapy is performed on a 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 device 100 may include one or more ultrasonic energy converters 110, and when the number of ultrasonic energy converters 110 is plural, a plurality of the ultrasonic energy converters 110 may be connected to one ultrasonic energy conversion driving unit 130, and each of the plurality of ultrasonic energy converters 110 may be connected to one ultrasonic energy conversion driving unit 130. The plurality of ultrasonic energy converters 110 may also be divided into a plurality of groups, each group of ultrasonic energy converters 110 may be connected to one ultrasonic energy conversion driving unit 130, it being understood that each group of ultrasonic energy converters 110 may include at least one ultrasonic energy converter 110, and the number of ultrasonic energy converters 110 included in each group of ultrasonic energy converters 110 may be different.
If the ultrasonic physiotherapy apparatus 100 includes a plurality of ultrasonic energy converters 110, the frequencies of the ultrasonic waves that can be emitted from the ultrasonic energy converters 110 may be the same or different, and may be set according to actual needs, which is not particularly limited herein.
As an embodiment, the number of the ultrasonic energy converters 110 is plural, the number of the ultrasonic energy conversion driving units 130 is plural, each group of the ultrasonic energy converters 110 corresponds to one ultrasonic energy conversion driving unit 130, each group of the ultrasonic energy converters 110 includes at least one ultrasonic energy converter 110, and the controller 140 is configured to obtain the power and the frequency of the ultrasonic wave output by each group of the ultrasonic energy converters 110 according to the operation parameters corresponding to each group of the ultrasonic energy converters 110.
By adopting the arrangement, the ultrasonic thermal treatment can be respectively carried out on a plurality of parts of the user which need to be heated, so as to form various ultrasonic heating modes on different parts of the user.
The power and frequency of the ultrasonic wave output by the ultrasonic energy converter 110 may be adjusted by adjusting the duty cycle of the pwm signal to adjust the operation duration of the ultrasonic energy converter 110 in a unit duration, thereby adjusting the power of the ultrasonic energy converter 110. The frequency of the ultrasonic wave output from the ultrasonic energy converter 110 is adjusted by adjusting the frequency of the pulse width modulated signal.
The resonant frequency range of the ultrasonic energy converter 110 refers to a range in which the frequency of the signal generator in the ultrasonic energy converter 110 tracks the resonant frequency point of the transducer in the ultrasonic energy converter 110 within a certain range, and the resonant frequency point at which the ultrasonic energy converter 110 operates in an optimal state. For example, the resonant frequency may be in the range of 20kHz to 50kHz or 25kHz to 35kHz, which is not particularly limited herein, depending on the particular model of ultrasonic energy converter 110 selected.
The power supply unit 120 may include only a power supply, a power supply circuit connected to a peripheral 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 may be a power supply for outputting a fixed voltage value, where the fixed voltage value output by the power supply unit 120 may be a fixed voltage value, or may be a fixed voltage value with a plurality of different voltages. The setting is performed according to actual needs, and is not particularly limited herein.
In one embodiment, if the power supply unit 120 includes a power supply that outputs a fixed voltage value, the output voltage value is one or more of 3V, 3.3V, 5V, 12V, 24V, and the like, and is not particularly limited herein.
The above power source may be specifically 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 source circuit, an input end of which is connected to an external power source, an output end of which is connected to an input end of the charge/discharge management circuit, and a charge/discharge management circuit, an output end of which is connected to an input end of the rechargeable battery, and an output end of which is connected to the controller 140 and the ultrasonic energy conversion driving unit 130, respectively.
Referring to fig. 2 and 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/discharge management circuit 124. Fig. 2 is a charging interface 122a (the charging interface shown in fig. 2 is a TYPE-C interface) for connecting to an external power supply device, and fig. 3 is a charging management chip 124a, which may be a model TC4056A.
It should be understood that fig. 2 and 3 are merely illustrative, and that the charge and discharge management circuit 124 and the power circuit 122 may also include more or fewer components. It should also be appreciated that the power circuit 122 shown in fig. 2 may change when the charging interface is different; when the charge management chip is different, the peripheral circuit shown in fig. 3 will also change accordingly, which is not limited herein.
The ultrasonic energy conversion driving unit 130 may include one or more of a resistor, a capacitor, an inductor, etc., as long as it can be used to drive the ultrasonic energy converter 110 according to the pwm signal so that the frequency of the ultrasonic wave outputted from the ultrasonic energy converter 110 can reach the resonance frequency range of the ultrasonic energy converter 110.
The controller 140 may include one or more processing cores. The controller 140 may connect various portions of the overall ultrasound therapy device 100 (i.e., connect the ultrasound energy converter 110, the power supply unit 120, and the ultrasound energy conversion drive 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, and invoking data stored in its memory space or its associated memory. Alternatively, the controller 140 may be implemented in at least one hardware form of digital signal Processing (DIGITAL SIGNAL Processing, DSP), field-Programmable gate array (fieldprogrammable GATE ARRAY, FPGA), programmable logic array (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 modulated signal or a control command for controlling the output power of the ultrasonic energy converter 110.
As an embodiment, the control signal comprises a pulse width modulated signal. The periods of the high and low levels corresponding to the pwm signals corresponding to different operating parameters may be different (the frequencies may be different), and the duty cycle may be different. Therefore, when the ultrasonic energy converter 110 is controlled to operate according to the pulse width modulation signals corresponding to different operation parameters, the time for operating the ultrasonic energy converter 110 within the same duration range is different, and the output ultrasonic frequency is different.
Specifically, the frequency corresponding to the pwm signal may be, but not limited to, any one of 45KHz, 50KHz or 55KHz, etc., and the duty cycle of the pwm signal corresponding to the different operating parameters may be different, for example, any value between 0-99%.
The above-mentioned operation parameter may be one or more of an operation time period of the ultrasonic energy converter 110, a power of the ultrasonic energy converter 110, a temperature of a surface of the object when the ultrasonic wave generated by the ultrasonic energy converter 110 acts on the object, and the like.
As one embodiment, the operating parameters include an operating time period, which may be obtained by the controller 140 or by a timer coupled to the ultrasonic energy converter 110.
As an embodiment, the operation parameters include the output power of the ultrasonic energy converter 110, the output power of the ultrasonic energy converter 110 may be obtained by the voltage acquisition device acquiring the operation voltage and the current of the ultrasonic energy converter 110 in a unit time, and the ultrasonic physiotherapy apparatus 100 may further include the voltage acquisition device and the current acquisition device acquiring the operation voltage and the current of the ultrasonic energy converter 110, respectively.
As another embodiment, the operating parameters include the temperature of the ultrasonic energy converter 110, which may be obtained by a temperature acquisition device, and correspondingly, the ultrasonic therapy device 100 may further include a temperature acquisition module for acquiring the temperature of the ultrasonic energy converter 110.
As yet another embodiment, when the operation parameter includes a body surface temperature at a location where the ultrasonic wave emitted from the ultrasonic energy converter 110 of the user of the ultrasonic physiotherapy apparatus 100 is applied, the temperature may be obtained by a human body temperature detecting means, and accordingly, the ultrasonic physiotherapy apparatus 100 may further include a temperature acquisition module for acquiring a temperature of the surface of the object when acting on the object.
It should be appreciated that the controller 140 may acquire the operation parameters in real time to obtain the pwm signal according to the operation parameters and output the pwm signal to the ultrasonic energy conversion driving unit 130 while outputting the pwm signal according to the operation parameters to the ultrasonic energy conversion driving unit 130. The operation parameters may be acquired at predetermined intervals (e.g., 10 seconds, 30 seconds, or one minute) to obtain a pwm signal according to the acquired operation parameters and output the pwm signal to the ultrasonic energy conversion driving unit 130.
By adopting the ultrasonic physiotherapy apparatus 100 of the present application, it is possible to realize that when a user uses the ultrasonic physiotherapy apparatus 100, since the temperature of the skin surface is low and the purpose of thermal moxibustion cannot be achieved when the ultrasonic physiotherapy apparatus 100 starts to output the ultrasonic wave corresponding to the pulse width signal of the graph a in fig. 4 to act on the skin surface of the user, the controller 140 may output the pulse width modulation signal with a larger duty cycle and a higher frequency as shown in the graph b in fig. 4 to make the power output by the ultrasonic energy converter 110 higher and increase the duty cycle and frequency of the ultrasonic wave, and further increase the frequency offset between the output frequency and the center frequency of the ultrasonic energy converter 110 to increase the heating power of the ultrasonic energy converter 110, so that the temperature of the skin surface of the human body is gradually increased, and the temperature of the corresponding ultrasonic energy converter 110 is also gradually increased, accordingly, the controller 140 may adjust the pwm signal output by the controller 140 according to one or more of the usage period, the skin temperature of the human body, and the temperature of the ultrasonic energy converter 110, so that the controller 140 outputs the adjusted pwm signal as shown in b-chart in fig. 4, it can be seen that the duty ratio of the pwm signal in b-chart is higher than that in a-chart in the same high-low level period as b-chart in fig. 4, i.e. by adjusting the operating time of the ultrasonic energy converter 110 in one high-low level signal period, the output power is increased, and in addition, the b-chart in fig. 4 is shorter than that in a-chart, the frequency is higher, and the deviation between the pwm signal corresponding to b-chart and the center frequency is larger, so that when the ultrasonic energy converter 110 outputs the ultrasonic wave corresponding to the pulse width signal shown in fig. b, the output ultrasonic wave can achieve a more comfortable temperature feeling of the human body when the human body is irradiated with the ultrasonic wave.
By adopting the ultrasonic physiotherapy equipment 100, the pulse width modulation signal for controlling the power and the frequency of the ultrasonic wave output by the ultrasonic energy converter 110 is generated according to the working parameters, 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, and the frequency of the ultrasonic wave has preset frequency deviation from the center frequency of the resonance frequency range, so that the ultrasonic energy converter 110 outputs the ultrasonic wave and generates certain heat at the same time, the effect of ultrasonic physiotherapy and thermotherapy can be achieved, and the experience of a user is improved.
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 with the controller 140 and is used for receiving the pulse width modulation signal sent by the controller 140, the input end of the electronic switch Q is respectively connected with the second end of the triangular inductor L, the anode of the diode D1 and the first end of the first capacitor C1, and the output end of the electronic switch Q is respectively connected with the first end of the first resistor R1 and the first end of the ultrasonic energy converter 110; a first end of the triangular inductor L is connected with the power supply unit 120, and a third end of the triangular inductor L is connected with a 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 end of the first capacitor C1 is connected to the power supply unit 120, the second end of the second capacitor C2 is connected to ground, and the second end of the first resistor R1 is grounded.
The electronic switch Q can be a field effect transistor or a triode and can be arranged according to actual requirements. The electronic switch Q is configured to be turned on or off under the action of the pwm signal, so that the ultrasonic energy converter 110 outputs ultrasonic waves under the on condition.
The triangular inductor L is used for boosting the voltage provided by the power supply to provide electric energy for the ultrasonic energy converter 110.
The diode D1 is used to consume a potential difference between the first and second ends of the delta inductance L when the electronic switch Q is turned off.
The first capacitor C1 is configured to perform LC oscillation compensation on the triangular inductor L.
The second capacitor C2 is used for capacitance compensation of the ultrasonic energy converter 110.
The first resistor R1 is used for limiting current to protect the electronic switch Q.
In one 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 energy converter 110, and the second end is grounded.
By providing the first and second electrostatic tubes D11 and D12 and the second resistor R2, each electrical component in the ultrasonic energy conversion driving circuit can be further protected.
Referring to fig. 6, the driving unit 130 further includes a level maintaining sub-circuit 134, where an input end of the level maintaining sub-circuit 134 is connected to the controller 140, and an output end of the level maintaining sub-circuit is connected to a control end of the electronic switch Q, so as to filter noise in the pwm signal output by the controller 140, so as to maintain the waveform of the pwm signal.
In one embodiment, the level maintaining sub-circuit 134 includes a third resistor R3, a fourth resistor R4, a first transistor P1 and a second transistor P2, where a first end of the third resistor R3 is connected to the controller 140, and a second end is connected to a base set of the first transistor P1 and a 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-keeping circuit, in this embodiment, the level-keeping sub-circuit 134 further includes a fifth resistor and a sixth resistor; the fifth resistor is connected between the emitter of the first triode P1 and the control end of the electronic switch Q, and the first end of the sixth resistor is connected with the second end of the third resistor R3, and the second end is connected with the emitter of the first triode P1.
In one embodiment, the ultrasonic physiotherapy device 100 further includes a current feedback sub-circuit 136, a first end of the current feedback sub-circuit 136 is connected to the controller 140, a second end of the current feedback sub-circuit is connected to the output end of the electronic switch Q, and the controller 140 is further configured to obtain the current flowing to the control end of the electronic switch Q by the current feedback sub-circuit 136.
By providing the current feedback sub-circuit 136, feedback of the current signal flowing through the switching module to the controller 140 may be achieved, so that the controller 140 may adjust its duty cycle, frequency, etc. 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, where a first end of the seventh resistor R7 is connected between the output end of the level keeping 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; the second end of the eighth resistor R8 is connected to the feedback end of the controller 140 and the first end of the fourth capacitor C4, the second end of the third capacitor C3 is grounded, and the second end of the fourth capacitor C4 is grounded.
Therefore, by adopting the ultrasonic energy conversion driving unit 130 of the present application, the ultrasonic energy conversion driving unit 130 may be turned on or off under the action of the pulse width modulation signal of the electronic switch Q when the controller 140 outputs the pulse width modulation signal to the ultrasonic energy conversion driving unit 130 by providing the electronic switch Q, the triangular inductor L for boosting the voltage provided by the power supply to provide the electric energy to the ultrasonic energy converter 110, the diode D1 for LC oscillation compensation of the triangular inductor L, the diode D1 for capacitance compensation of the ultrasonic energy converter 110, and the first resistor R1 for current limiting the electronic switch Q when the electronic switch Q is turned off, so that the ultrasonic energy conversion driving unit 130 may stably drive the ultrasonic energy converter 110 to output the ultrasonic energy to the user, thereby achieving the user experience.
Referring to fig. 7, an embodiment of the present application further provides an ultrasonic physiotherapy apparatus 100, the ultrasonic physiotherapy apparatus 100 including an ultrasonic energy converter 110, a power supply unit 120, an ultrasonic energy conversion driving unit 130, a controller 140, and a first temperature acquisition unit 150, the ultrasonic energy converter 110 including an ultrasonic 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 connected to the ultrasonic energy converter 110; the ultrasonic physiotherapy apparatus 100 further includes a first temperature acquisition unit 150, where the first temperature acquisition unit 150 is disposed on 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 a temperature of the ultrasonic energy conversion sheet, and 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 working parameter, where the pulse width modulation signal is used to control the power and the frequency of the ultrasonic wave output by the ultrasonic energy converter 110; 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 enables the frequency of the ultrasonic wave output from 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 type temperature measurement device, a temperature detection sensor, or the like.
In one embodiment, the controller 140 may adjust the duty cycle and/or the 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 cycle 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, the duty ratio of the pulse width modulation signal is increased, and/or the frequency deviation is increased.
In this embodiment, the first temperature threshold may be 50 ℃, 55 ℃, 48 ℃, 45 ℃, or the like. The second temperature threshold may be 37 ℃, 36 ℃, 38 ℃ or the like, and is not particularly limited herein, as long as it is performed according to actual needs.
In another embodiment, the controller 140 may further obtain a correspondence relationship between the first temperature and a duty cycle and a frequency of the pwm signal when adjusting the pwm signal according to 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.
Wherein, 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 corresponding relation between the temperature and the duty ratios and frequencies.
By acquiring the 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. Thereby realizing the adjustment of the output power and frequency of the ultrasonic energy converter 110 in unit time, so that the frequency of the output ultrasonic wave and the frequency deviation of the ultrasonic energy converter 110 are increased, thereby having the effect of thermal therapy on human body and improving the experience of users.
To further make the obtained pwm 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 the ultrasonic energy conversion driving unit 130 based on the pwm 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 on 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 acquisition unit 160 may include any one of a temperature sensor, a contact type temperature measuring device, and the like.
Referring to fig. 8, fig. 8 is a schematic circuit diagram of a second temperature acquisition unit 160, where the second temperature acquisition unit 160 includes a thermistor R11 and a voltage dividing resistor R12, a first end of the voltage dividing resistor R12 is connected to the power supply unit 120, a second end of the voltage dividing resistor R12 is connected to a 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 ohms, 20K ohms, 100K ohms, etc., and in this embodiment, the voltage dividing resistor R is not specifically limited, and may be selected according to actual requirements.
In order to make the temperature obtained by the second temperature collecting unit 160 more accurate, in this embodiment, the second temperature collecting unit 160 further includes a fifth capacitor C5, and 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 dividing resistor R12, and a second end of the fifth capacitor is grounded.
The fifth capacitor C5 is a filter capacitor, and may be used to perform a smoothing filtering function on the voltage signal output by the second temperature detection module to the controller 140.
By providing the first temperature acquisition unit 150 and the second temperature acquisition unit 160, it is possible to obtain corresponding pwm signals according to the first temperature and the second temperature, and output the pwm 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 the voltage to the ultrasonic energy converter 110 according to the pwm signals to adjust the frequency of the ultrasonic wave. Thereby realizing the adjustment of the output power of the ultrasonic energy converter 110 in unit time, enabling the ultrasonic energy output by the ultrasonic energy converter 110 to have the effect of carrying out thermotherapy on human body, enabling the user to automatically reduce the duty ratio of the pulse width modulation signal to reduce the output power of the ultrasonic energy converter 110 when the temperature of the ultrasonic energy converter 110 is higher than the comfort 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, and reducing the frequency of the ultrasonic wave to reduce the difference between the frequency and the center frequency of the ultrasonic wave so as to enable the ultrasonic wave to achieve the comfort temperature of the human body. And when the temperature of the ultrasonic energy converter 110 is lower than the comfortable temperature of the human body or the temperature of the ultrasonic energy converter 110 is too low, automatically increasing the duty ratio of the pulse width modulation signal, increasing the output power of the ultrasonic energy converter 110, and increasing the frequency of the ultrasonic wave to increase the difference between the frequency and the center frequency of the ultrasonic wave for performing thermal moxibustion, so that the comfortable temperature feeling of the human body is achieved in the process of thermal therapy, the ultrasonic physiotherapy equipment 100 can perform two functions of ultrasonic diagnosis and treatment and thermal moxibustion at the same time, and the user experience is improved.
Referring to fig. 9, fig. 9 is a schematic diagram of an ultrasonic physiotherapy apparatus 100 for a neck of a patient, where the ultrasonic physiotherapy apparatus 100 includes a controller 140, an ultrasonic energy conversion driving unit 130, a massage bracket 500, and an ultrasonic energy converter 110, the massage bracket 500 may be worn on the neck of the patient, the ultrasonic energy converter 110 is disposed on a side of the massage bracket facing the neck of the patient, and the controller 140 is electrically connected to the ultrasonic energy converter 110 through the ultrasonic energy conversion driving unit 130 and is used for controlling the power supply unit 120 to supply voltage to the ultrasonic energy converter 110 through the ultrasonic energy conversion driving unit 130 so as to make the ultrasonic energy converter 110 emit ultrasonic waves.
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 ultrasonic energy converters 110 may be one or more.
Alternatively, as shown in fig. 9, the ultrasonic energy converters 110 may be plural, and the plural ultrasonic energy converters 110 may be provided on the electrode sheet of the massage bracket, respectively.
It should be appreciated that a plurality of through holes may be provided in the electrode sheet, and a plurality of ultrasonic energy converters 110 may also be provided in the massage bracket, and each through hole may correspond to at least one ultrasonic energy converter 110, so that light rays emitted from the ultrasonic energy converter 110 corresponding to the through hole may be emitted through the through hole.
Specifically, when the ultrasonic physiotherapy apparatus 100 is worn on the neck of the user, the light emitted from each ultrasonic energy converter 110 may pass through the corresponding through hole to be irradiated to the skin surface of the user.
It should be understood that the ultrasonic physiotherapy apparatus 100 shown in fig. 9 is only illustrative, and the ultrasonic physiotherapy apparatus 100 of the present application may be a waist ultrasonic physiotherapy apparatus 100, a back ultrasonic physiotherapy apparatus 100, an eye ultrasonic physiotherapy apparatus 100, etc. other than the neck ultrasonic physiotherapy apparatus 100, which are not described in detail herein.
Referring to fig. 10, an embodiment of the present application provides an output control method of an ultrasonic physiotherapy apparatus 100, which may be applied to a controller 140 in the ultrasonic physiotherapy apparatus 100, and the method may include:
Step S110: an operating parameter of the ultrasound therapy device 100 is acquired, the operating parameter including a resonant frequency range of the ultrasound transducer 110.
Step S120: and 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 110.
In one embodiment, the ultrasonic energy converters 110 are multiple groups, the ultrasonic energy conversion driving units 130 are multiple, each group of ultrasonic energy converters 110 corresponds to one ultrasonic energy conversion driving unit 130, each group of ultrasonic energy converters 110 includes at least one ultrasonic energy converter 110, and the generating the pulse width modulation signal according to the operation parameters includes: according to the corresponding operation parameters of each group of ultrasonic energy converters 110, pulse width modulation signals for controlling the power and frequency of the ultrasonic waves output by each group of ultrasonic energy converters 110 are 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 from 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 the center frequency of the resonance frequency range.
Referring to fig. 11, in one embodiment, the ultrasonic energy converter 110 includes an ultrasonic energy conversion sheet, and the ultrasonic physiotherapy apparatus 100 further includes a first temperature acquisition unit 150, where the first temperature acquisition unit 150 is configured to acquire a temperature of the ultrasonic energy conversion sheet; the method further comprises the steps of:
Step S140: the first temperature acquired by the first temperature acquisition unit 150 is acquired, and the first temperature is the temperature of the ultrasonic energy conversion sheet acquired by the first temperature acquisition unit 150.
Step S150: the pulse width modulated signal duty cycle and/or frequency is adjusted according to the first temperature.
In one embodiment, the 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, 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, the duty ratio of the pulse width modulation signal is increased, and/or the frequency deviation is increased.
In another embodiment, in one embodiment, the adjusting the duty cycle and/or the frequency of the pwm signal according to the first temperature includes: acquiring a corresponding relation between a duty cycle and frequency used 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 specific descriptions of the above steps, reference may be made to the foregoing specific descriptions of the ultrasonic physiotherapy apparatus, which are not described in detail herein.
It should be appreciated that since the controller 140 is configured to perform specific steps as in steps S110-S130 or steps S210-S240 in the above embodiments, the controller 140 may include one or more processing cores, respectively. The controller 140 connects various parts within the entire ultrasonic therapy device 100 using various interfaces and lines, performs various functions of the ultrasonic therapy device 100 and processes data by running or executing instructions, programs, code sets, or instruction sets stored in a memory, and invoking data stored in the memory. Alternatively, the controller 140 may be implemented in at least one hardware form of digital signal Processing (DIGITAL SIGNAL Processing, DSP), field-Programmable gate array (fieldprogrammable GATE ARRAY, FPGA), programmable logic array (Programmable Logic Array, PLA). The controller 140 may integrate one or a combination of several of a central controller 140 (Central Processing Unit, CPU), an image controller 140 (Graphics Processing Unit, GPU), a modem, etc. The CPU mainly processes an operating system, a user interface, an application program and the like; the GPU is used for being responsible for rendering and drawing of display content; the modem is used to handle wireless communications. It will be appreciated that the modem may not be integrated into the controller 140 and may be implemented solely by a single communication chip.
The Memory may include random access Memory (Random Access Memory, RAM) or Read-Only Memory (ROM). The memory may be used to store instructions, programs, code sets, or instruction sets. 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 the various method embodiments described below, and the like. The memory data area may also store data created by the terminal in use (such as data of output frequency, duration, output pulse width, etc. of the electric pulse signal), etc.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be appreciated by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not drive the essence of the corresponding technical solutions to depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (17)
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 driving unit, the ultrasonic energy converter includes an ultrasonic energy conversion sheet, the ultrasonic physiotherapy apparatus further includes a first temperature acquisition unit for acquiring a temperature of the ultrasonic energy conversion sheet, the method includes:
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 ultrasonic waves output by the ultrasonic energy converter;
Outputting the 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 enables the frequency of ultrasonic waves output by the ultrasonic energy converter to reach the resonance frequency range of the ultrasonic energy converter, wherein the frequency of the ultrasonic waves has a preset frequency deviation from the center frequency of the resonance frequency range;
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;
if the first temperature is higher than a preset first temperature threshold value, 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, the duty ratio of the pulse width modulation signal is increased, and/or the frequency deviation is increased.
2. The method of claim 1, wherein adjusting the pulse width modulated signal based on the first temperature comprises:
acquiring a corresponding relation between a duty cycle and frequency used 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.
3. The method of claim 1 or 2, wherein the ultrasound energy converters are in a plurality of groups, the ultrasound energy conversion driving units are in a plurality, each group of ultrasound energy converters corresponding to one ultrasound energy conversion driving unit, each group of ultrasound energy converters including at least one ultrasound energy converter, the generating the pulse width modulated signal according to the operating parameter comprising:
And obtaining pulse width modulation signals for controlling the power and the frequency of the ultrasonic waves output by each group of ultrasonic energy converters according to the corresponding working parameters of each group of ultrasonic energy converters.
4. An ultrasonic physiotherapy apparatus, 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 resonant 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 ultrasonic waves output by the ultrasonic energy converter; outputting the 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 enables the frequency of ultrasonic waves output by the ultrasonic energy converter to reach the resonance frequency range of the ultrasonic energy converter, wherein the frequency of the ultrasonic waves has a preset frequency deviation from the center frequency of the resonance frequency range;
The ultrasonic energy converter comprises an ultrasonic energy conversion sheet, the ultrasonic physiotherapy equipment further comprises a first temperature acquisition unit, the first temperature acquisition unit is used for acquiring the temperature of the ultrasonic energy conversion sheet, the controller is further used for acquiring a first temperature acquired by the first temperature acquisition unit, and the first temperature is the temperature of the ultrasonic energy conversion sheet acquired by the first temperature acquisition unit; if the first temperature is higher than a preset first temperature threshold value, 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, the duty ratio of the pulse width modulation signal is increased, and/or the frequency deviation is increased.
5. The ultrasonic physiotherapy apparatus according to claim 4, wherein the ultrasonic energy conversion driving 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 the 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.
6. The ultrasonic physiotherapy apparatus according to claim 5, wherein the ultrasonic energy conversion driving 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.
7. The ultrasonic physiotherapy apparatus according to claim 5, wherein the ultrasonic energy conversion driving unit further comprises a level holding sub-circuit, an input end of the level holding sub-circuit is connected to the controller, and an output end of the level holding sub-circuit is connected to a control end of the electronic switch, for filtering noise in the pwm signal outputted from the controller, so as to maintain a waveform of the pwm signal.
8. The ultrasonic physiotherapy apparatus according to claim 7, wherein the level-maintaining sub-circuit includes a third resistor, a fourth resistor, a first triode, and a second triode, a first end of the third resistor being connected to the controller, a second end being connected to a base set of the first triode and a base set of the second triode, respectively;
The collector of the first triode is connected with the power supply unit through the fourth resistor, the emitter 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.
9. The ultrasonic physiotherapy device of claim 8, wherein the level-holding subcircuit further comprises 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.
10. The ultrasonic therapy apparatus of claim 7, wherein the sonic energy-conversion-driving module further comprises a current feedback sub-circuit, a first end of the current feedback sub-circuit being connected to the controller and a second end being connected to an output of the electronic switch, the controller further configured to obtain a current of the current feedback sub-circuit flowing to a control end of the electronic switch.
11. The ultrasonic physiotherapy apparatus according to claim 10, wherein the current feedback sub-circuit comprises a seventh resistor, an eighth resistor, a third capacitor and a fourth capacitor, a first end of the seventh resistor being connected between the output end of the level holding sub-circuit and the control end of the electronic switch, a second end being connected with the first end of the eighth resistor and the first end of the third capacitor, respectively;
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.
12. The ultrasonic physiotherapy apparatus according to claim 4, 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.
13. The ultrasonic physiotherapy apparatus of claim 12, wherein the first temperature acquisition unit further comprises a fifth capacitor, a first end of the fifth capacitor being connected between the first end of the thermistor and a second end of the pull-up resistor, the second end being grounded.
14. The ultrasonic physiotherapy apparatus according to claim 4, 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 emits 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 driving unit.
15. The ultrasonic physiotherapy apparatus of claim 14, wherein the second temperature acquisition unit comprises a human infrared temperature measurement module, the human infrared temperature measurement module being connected to the controller.
16. The ultrasonic therapy apparatus according to any one of claims 4 to 15, wherein the ultrasonic energy converters are plural, and the ultrasonic energy conversion driving unit is connected to the plural ultrasonic energy converters, respectively.
17. The ultrasonic therapy apparatus according to any one of claims 4-15, wherein a center frequency of the ultrasonic energy converter is between 0.5MHz and 5 MHz.
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| CN114733060A (en) * | 2022-04-29 | 2022-07-12 | 深圳市宗匠科技有限公司 | Osmosis promoting device and ultrasonic osmosis promoting method thereof |
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| CN111420308A (en) * | 2020-04-16 | 2020-07-17 | 重庆邮电大学 | Ultrasonic physiotherapy instrument based on frequency automatic tracking and frequency automatic tracking method |
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| EP2311427A1 (en) * | 2009-10-16 | 2011-04-20 | Reinhard Becker | Ultrasound treatment device and method for its operation |
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