Physiotherapy apparatus

Abstract

The application discloses a physiotherapy device and belongs to the technical field of intelligent devices. The physiotherapy device comprises a shell, a first mainboard, a speaker assembly, a second mainboard, an electrode sheet, a power supply module, a first branch and a second branch. The first cavity and the second cavity in the shell are separated by a composite shielding isolation partition plate in the shell. The output end of the first mainboard in the first cavity is connected with the input end of the speaker assembly, and is used for outputting an audio signal. The second cavity is provided with the second mainboard, the electrode output end of the second mainboard is connected with the electrode sheet, and is used for outputting an electric stimulation pulse signal. The power supply module in the third cavity in the shell supplies power to the first mainboard through the first branch, and supplies power to the second mainboard through the second branch. The composite shielding isolation partition plate can block electromagnetic radiation, heat conduction and mechanical vibration, and ensure output accuracy. Two independent power supply branches can decouple the first mainboard and the second mainboard, and can work independently or cooperatively without interference under subsequent control.

Description

Technical Field

[0001] This application relates to the field of smart device technology, and in particular to a physiotherapy device. Background Technology

[0002] With the continuous development of technology, devices such as integrated acoustic-electrotherapy equipment have been widely used in users' adjunctive treatments. In related technologies, integrated acoustic-electrotherapy equipment includes a speaker module and an electrostimulator, which are installed inside the same cavity, spatially close to each other. The audio signal lines of the speaker module and the pulse output lines of the electrostimulator are wired together within the cavity and share a power bus and ground wire. However, this arrangement can cause mutual interference between the speaker module and the electrostimulator during operation, thus affecting the therapeutic effect. Summary of the Invention

[0003] This application provides a physiotherapy device that can guarantee the therapeutic effect. The technical solution is as follows: In a first aspect, a physiotherapy device is provided, the physiotherapy device comprising: a housing, a first main board, a speaker assembly, a second main board, electrode pads, a power supply module, a first branch circuit, and a second branch circuit; The inner cavity of the housing includes a first cavity, a second cavity, and a third cavity. A composite shielding partition is provided in the inner cavity of the housing, and the first cavity and the second cavity are separated by the composite shielding partition. The first cavity is provided with the first motherboard and the speaker assembly. The output terminal of the first motherboard is connected to the input terminal of the speaker assembly. The first motherboard is used to output audio signals. The second cavity is provided with a second main board, the electrode output terminal of the second main board is connected to the electrode plate, and the second main board is used to output electrical stimulation pulse signals; The third cavity is equipped with the power supply module, which supplies power to the first motherboard through the first branch and to the second motherboard through the second branch.

[0004] In this application, the housing is divided into three independent cavities, and a composite shielding partition is used to physically isolate the first motherboard and speaker assembly from the second motherboard. Two independent power supply branches are used to power the two systems respectively. This effectively blocks electromagnetic radiation, heat conduction, and mechanical vibration between the first and second motherboards, eliminating common cross-interference problems such as audio distortion and pulse distortion that occur when the first and second motherboards operate simultaneously, ensuring their respective output accuracy. Furthermore, the two independent power supply branches avoid crosstalk caused by shared power circuits, completely decoupling the first and second motherboards electrically, allowing them to operate independently or coordinate without interference under subsequent control. Finally, the power supply module is placed separately in the third cavity, facilitating battery management and heat dissipation, further enhancing the overall safety and reliability of the device. Through physical structure and power architecture, hardware-level independent operation can be achieved, significantly improving the device's anti-interference capability, functional flexibility, and operational safety.

[0005] Optionally, the first branch includes one or more of a first isolated DC-DC circuit and a first LC filter circuit, and the second branch includes one or more of a second isolated DC-DC circuit and a second LC filter circuit.

[0006] Optionally, the physiotherapy device includes an opto-isolation module, which includes a first opto-isolation unit and a second opto-isolation unit. The input terminal of the first opto-isolation unit is connected to the first input / output (IO) port of the first motherboard, and the output terminal of the first opto-isolation unit is connected to the first IO port of the second motherboard. The input terminal of the second opto-isolation unit is connected to the second IO port of the second motherboard, and the output terminal of the second opto-isolation unit is connected to the second IO port of the first motherboard.

[0007] Optionally, the physiotherapy device is configured to: during the self-test phase, if the first motherboard completes its self-test, send a first self-test completion signal to the second motherboard through the first opto-isolation unit to indicate that the hardware of the first motherboard is normal; if the second motherboard completes its self-test, send a second self-test completion signal to the first motherboard through the second opto-isolation unit to indicate that the hardware of the second motherboard is normal; and / or, The physiotherapy device is used to: upon receiving an independent operating mode signal, the first motherboard outputs an audio signal and sends a first indication signal to the second motherboard via the first opto-isolation unit to instruct the second motherboard to enter a low-power mode; or, the second motherboard outputs an electrical stimulation pulse signal and sends a second indication signal to the first motherboard via the second opto-isolation unit to instruct the first motherboard to enter a low-power mode; and / or, The physiotherapy device is used to: upon receiving a collaborative working mode signal, the first motherboard outputs an audio signal, and sends a third indication signal to the second motherboard via the first opto-isolator to instruct the second motherboard to output an electrical stimulation pulse signal; and / or, the second motherboard outputs an electrical stimulation pulse signal, and sends a fourth indication signal to the first motherboard via the second opto-isolator to instruct the first motherboard to output an audio signal; and / or, The physiotherapy device is used to: in the case of a fault linkage phase, send a sixth indication signal to the first motherboard through the second opto-isolation unit to indicate that the first motherboard enters a low-power state.

[0008] Optionally, the first motherboard includes a beat sampling circuit, the input terminal of which is connected to the input terminal of the speaker assembly, and the output terminal of which is connected to the input terminal of the first opto-isolation unit. The beat sampling circuit is used to: acquire the beat rate of the audio signal input to the speaker assembly; and send the beat rate to the second motherboard through the first opto-isolation unit. The second motherboard is used to adjust the pulse frequency of the output electrical stimulation pulse signal based on the beat rate.

[0009] Optionally, the second motherboard includes a harmonic filtering circuit, which is disposed in the output circuit of the electrical stimulation pulse signal. The harmonic filtering circuit is used to: filter out high-frequency harmonic components in the electrical stimulation pulse signal; and / or, The physiotherapy device further includes an electromagnetic radiation absorption module, which is disposed at the perforation of the composite shielding isolation partition; and / or, The first motherboard includes an audio dynamic noise reduction circuit; and / or, The second motherboard includes a burr filter circuit.

[0010] Optionally, the second motherboard includes one or more of an impedance sensor, a microcurrent sensor, and a first temperature sensor; and / or, the physiotherapy device further includes one or more of a second temperature sensor, an unloaded detection module, and a short-circuit detection module. The impedance sensor is disposed at the electrode output terminal of the second motherboard and is used to detect the first impedance value of human skin; the microcurrent sensor is disposed in the output circuit of the electrical stimulation pulse signal and is used to detect the first current value output by the electrode output terminal of the second motherboard; the first temperature sensor is disposed in the boost circuit in the second motherboard and is used to detect the temperature value of the boost circuit; the second temperature sensor is disposed on the electrode plate and is used to detect the temperature value of the electrode plate; the no-load detection module is disposed between the electrode output terminal of the second motherboard and the electrode plate and is used to detect the second current value between the electrode output terminal of the second motherboard and the electrode plate, and determine the no-load detection result based on the second current value; the short-circuit detection module is disposed between the positive electrode line and the negative electrode line in the electrode plate and is used to detect the second impedance value between the positive electrode line and the negative electrode line, and determine the short-circuit detection result based on the second impedance value.

[0011] Optionally, the second motherboard is used to: determine whether an abnormality exists based on one or more of the first impedance value, the first current value, the temperature value of the boost circuit, the temperature value of the electrode plate, the no-load detection result, and the short-circuit detection result; and if an abnormality exists, determine a target handling scheme based on the abnormality type, wherein the abnormality type includes any one of minor abnormality, contact abnormality, and extreme fault.

[0012] Optionally, the second motherboard includes a latching switch, which is disposed on the high-voltage pulse output path between the output terminal of the boost circuit in the second motherboard and the electrode output terminal of the second motherboard. The latching switch is used to turn off or on the high-voltage pulse output path; and / or, The second motherboard includes a low-voltage detection circuit. A first detection terminal of the low-voltage detection circuit is connected to a first pin in the electrode output terminal of the second motherboard, and a second detection terminal of the low-voltage detection circuit is connected to a second pin in the electrode output terminal of the second motherboard. The electrode piece connected to the first pin and the electrode piece connected to the second pin form a loop. The low-voltage detection circuit is used to detect a third impedance value of the loop. The second motherboard is used to: determine the type of the electrode piece based on the third impedance value, and determine whether the electrode piece is in contact with the human body based on the third impedance value.

[0013] Optionally, the second motherboard includes a posture sensor for acquiring posture data of the physiotherapy device; the second motherboard is used to: determine the user's posture based on the posture data, and determine a target physiotherapy plan based on the user's posture and the type of electrode pads; and / or, The second motherboard is also used to: receive physiotherapy parameter adjustment instructions, and adjust the physiotherapy parameters in the physiotherapy plan based on the physiotherapy parameter adjustment instructions. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a physiotherapy device provided in an embodiment of this application, wherein, Figure 1 Figure (a) is a longitudinal sectional view of the physiotherapy equipment. Figure 1 Figure (b) in the figure is a schematic diagram of the front appearance of the physiotherapy equipment; Figure 2 This is a flowchart illustrating the operation of a physiotherapy device provided in an embodiment of this application; Figure 3 This is a flowchart of another physiotherapy device provided in the embodiments of this application. Detailed Implementation

[0015] In the following description, specific details such as particular system architectures and technologies are set forth for illustrative purposes and not for limiting purposes, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details.

[0016] It should be understood that, when used in this specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or collections thereof. The terms "comprising," "including," "having," and variations thereof all mean "including but not limited to," unless otherwise specifically emphasized.

[0017] It should be understood that "one or more" as used in this application refers to one, two, or more, and "multiple" as used in this application refers to two or more. In the description of this application, unless otherwise stated, " / " means "or," for example, A / B can mean A or B. "And / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone.

[0018] To facilitate a clear description of the technical solutions of this application, the terms "first" and "second" are used to distinguish identical or similar items with essentially the same function and effect. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, and that the terms "first" and "second" do not necessarily imply that they are different.

[0019] The terms "one embodiment" or "some embodiments" used in this application mean that one or more embodiments of this application include the specific features, structures, or characteristics described in that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this application do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized.

[0020] The application scenarios involved in the embodiments of this application are described below.

[0021] Currently, physiotherapy equipment such as integrated acoustic and electrotherapy devices are widely used to provide auxiliary treatment for users.

[0022] In related technologies, the integrated acoustic-electrotherapy device includes a speaker module and an electrostimulator. The speaker module and the electrostimulator (i.e., the pulse output circuit board of the electrostimulator) are located within the same cavity of the integrated acoustic-electrotherapy device, spatially adjacent to each other. The speaker module and the electrostimulator share a power bus and ground wire. The audio signal lines of the speaker module and the pulse output lines of the electrostimulator are routed within the same cavity and controlled by the same main control board. During operation, the speaker module and the electrostimulator run simultaneously. The speaker module plays music, while the electrostimulator modulates its own output frequency, waveform, and intensity based on the audio signal output by the speaker module. The operating condition of the electrostimulator is highly correlated with the audio signal output by the speaker module.

[0023] However, this arrangement has certain problems to varying degrees.

[0024] On the one hand, the speaker module and the electrostimulator are housed in the same cavity, resulting in severe circuit coupling and tangled wiring between them. This can easily lead to: 1. Common ground loop interference: Sharing a power ground wire, noise generated by the high-voltage therapy pulses travels along the ground wire into the audio circuit, causing speaker noise. 2. Electromagnetic radiation interference: The high-voltage therapy pulses are alternating electric fields that radiate electromagnetic waves, interfering with weak audio signals and causing waveform distortion. 3. Mechanical vibration crosstalk: Speaker vibrations are transmitted to the pulse circuit board, causing circuit parameter drift. 4. Mutual heat interference: The combined heat from the two circuits exacerbates component temperature drift, further aggravating signal disturbance.

[0025] On the other hand, the speaker module and the electrostimulator are highly coupled, and the frequency, waveform, and intensity of the electrostimulation cannot be independently adjusted without the audio signal, failing to simultaneously meet the dual requirements of high-quality audio playback and high-precision, personalized physiotherapy output. Furthermore, the integrated acoustic-electrotherapy device only has basic overcurrent protection and lacks dynamic parameter adjustment, multi-state monitoring, and graded fault-tolerant protection capabilities, resulting in a rudimentary safety protection system and insufficient user experience and safety redundancy.

[0026] Therefore, this application provides a physiotherapy device, which includes: a housing, a first main board, a speaker assembly, a second main board, electrode pads, a power supply module, a first branch circuit, and a second branch circuit. The inner cavity of the housing includes a first cavity, a second cavity, and a third cavity. A composite shielding partition is provided in the inner cavity of the housing, separating the first cavity and the second cavity. The first cavity houses the first main board and the speaker assembly. The output terminal of the first main board is connected to the input terminal of the speaker assembly, and the first main board is used to output audio signals. The second cavity houses the second main board, and the electrode output terminal of the second main board is connected to the electrode pads. The second main board is used to output electrical stimulation pulse signals. The third cavity houses the power supply module, which supplies power to the first main board through the first branch circuit and to the second main board through the second branch circuit. By dividing the housing into three independent cavities and using a composite shielding partition circuit to physically isolate the first main board and the speaker assembly from the second main board, and by using two independent branches to supply power to the two systems respectively, this method achieves the desired effect. Thus, on the one hand, the composite shielding isolation plate effectively blocks electromagnetic radiation, heat conduction, and mechanical vibration between the first and second motherboards, eliminating common cross-interference problems such as audio distortion and pulse distortion when the first and second motherboards work simultaneously, ensuring their respective output accuracy. On the other hand, the two independent power supply branches avoid crosstalk caused by the power circuit sharing a ground, completely decoupling the first and second motherboards electrically, allowing them to work independently or cooperate without interference under subsequent control. Furthermore, the power supply module is placed separately in the third cavity, facilitating battery management and heat dissipation, further enhancing the overall safety and reliability of the device. Through physical structure and power architecture, hardware-level independent operation can be achieved, significantly improving the device's anti-interference capability, functional flexibility, and operational safety.

[0027] The physiotherapy equipment provided in the embodiments of this application will be described below.

[0028] Figure 1 This is a schematic diagram of the structure of a physiotherapy device provided in an embodiment of this application. Figure 1 Figure (a) is a longitudinal sectional view of the physiotherapy equipment. Figure 1 Figure (b) shows a schematic diagram of the front view of the physiotherapy device. Figure 1 As shown in Figure (a), the physiotherapy device may include a housing 101, a first mainboard 102, a speaker assembly 103, a second mainboard 104, electrode pads 105 (not shown in the figure), a power supply module 106, a first branch circuit 107, and a second branch circuit 108. The housing 101 may include a first cavity, a second cavity, a third cavity, and a composite shielding partition. For example, as... Figure 1As shown in (a), the first cavity, the second cavity, the third cavity and the composite shielding isolation partition can be divided vertically, or the first cavity, the second cavity, the third cavity and the composite shielding isolation partition can be divided horizontally. This application does not limit this.

[0029] It should be noted that the physiotherapy device provided in this application embodiment can be a handheld physiotherapy device or a wearable physiotherapy device, etc., and this application embodiment does not limit it.

[0030] Figure 1 This is merely an illustrative description of the physiotherapy device and does not constitute a limitation on the device. In actual applications, it may include more modules and units than those shown in the illustration.

[0031] The first motherboard 102 can be electrically connected to the power supply module 106 via the first branch 107. For example, the first motherboard 102 can be an audio motherboard, an audio main control circuit board, etc., but this embodiment does not limit it.

[0032] The second motherboard 104 can be electrically connected to the power supply module 106 via the second branch 108. For example, the second motherboard 104 can be a physiotherapy motherboard, a physiotherapy main control circuit board, etc., but this application embodiment does not limit it.

[0033] The output terminal of the first motherboard 102 is connected to the input terminal of the speaker assembly 103. The first motherboard 102 is used to output an audio signal to the speaker assembly 103. The speaker assembly 103 is used to play audio based on the audio signal. For example, the first motherboard 102 and the speaker assembly 103 can be disposed in a first cavity, and sound-absorbing and vibration-damping cotton is pasted inside the cavity to achieve acoustic noise reduction and electromagnetic shielding.

[0034] Optionally, a digital signal processor (DSP) audio processing circuit and a controllable on / off power amplifier circuit may also be provided in the first cavity. The DSP audio processing circuit is used to perform digital algorithm processing on the input audio signal, such as active noise reduction, sound field expansion, and loudness equalization, and outputs a digital audio drive signal. The controllable on / off power amplifier circuit is used to respond to on or off commands. In the on state, it amplifies the digital audio signal output by the DSP audio processing circuit to drive the speaker assembly 103 to produce sound; or in the off state, it cuts off the audio channel.

[0035] Optionally, the first motherboard 102 may include an audio function module, which may include an audio input unit, an audio decoding unit, a DSP audio calibration unit, an audio main control unit, a power amplifier controllable on / off unit, and an upper shielded cavity sound generation unit. The audio input unit is used to receive an audio signal source. For example, the audio signal source can be a signal source transmitted via Bluetooth wireless communication or an auxiliary (AUX) audio input interface to a target device. For example, the target device can be a mobile device, a laptop, etc., and this embodiment does not limit this. The audio decoding unit is used to decode the received digital audio encoded data into a pulse code modulation digital audio stream, or to convert the received analog audio signal into a digital audio stream after analog-to-digital conversion. The DSP audio calibration unit is used to perform equalization adjustment, dynamic range compression, loudness normalization, sound field expansion, and audio line noise adjustment on the digital audio stream. The audio main control unit is used to receive mode switching commands, fault alarm signals, and standby / sleep commands from the opto-isolation module described below. The power amplifier controllable on / off unit is used to amplify the audio signal processed by the DSP audio calibration unit and output it to the upper shielded cavity sound-emitting unit when it receives the on command from the audio main control unit. It is also used to cut off the power amplifier output path and put the speaker assembly 103 in a silent state when it receives the off command from the audio main control unit. The upper shielded cavity sound-emitting unit is used to convert the amplified audio electrical signal into sound waves for outward radiation.

[0036] The second mainboard 104 is used to output electrical stimulation pulse signals. The second mainboard 104 may include an electrode socket for connecting electrode pads 105 and outputting electrical stimulation pulse signals to the electrode pads 105. For example, the second mainboard 104 may be disposed within a second cavity. Optionally, a multi-waveform pulse generation circuit, a boost drive module, a five-dimensional sensing detection array (also referred to as a five-dimensional sensing detection circuit), and an electrode identification circuit may also be disposed within the second cavity, and the cavity is treated with high-voltage insulation and protective wiring. For example, the electrode pads 105 include various types. For instance, the electrode pads 105 may include one or more of the following: patch electrodes, ear clip electrodes, foot therapy pads, etc. For example, the electrode pads 105 may also be other types or other structures of electrodes; this embodiment does not limit this.

[0037] The multi-waveform pulse generation circuit generates low-voltage pulse signals of various preset waveforms (such as square waves, sine waves, exponential waves, modulated waves, etc.) as the original waveform source for the electrical stimulation output. The boost drive module boosts the low-voltage pulse signals output from the multi-waveform pulse generation circuit to a treatment voltage of tens to hundreds of volts, and drives the electrode load in a constant-current manner to ensure stable output current unaffected by changes in skin impedance. The five-dimensional sensor array collects five physical quantities in real time: electrode impedance, output current, boost circuit temperature, electrode temperature, and no-load / short-circuit status, providing multi-dimensional monitoring data for safety protection and closed-loop control. The electrode identification circuit automatically determines the type of electrode 105 and its contact state with the skin by applying a safe low-voltage detection signal and measuring the electrode circuit impedance when the electrode 105 is inserted or replaced.

[0038] For example, the second motherboard 104 may include a parameter configuration unit, a posture scene adaptation unit, a physiotherapy main control computing unit, and a high-voltage isolation output unit. The parameter configuration unit stores and manages physiotherapy parameters (such as frequency, pulse width, intensity, waveform type, and working time), receives adjustment commands from the target device or main control to update parameters, and sends these updates to the waveform generation unit. The posture scene adaptation unit receives posture sensor data, identifies the current usage posture of the physiotherapy device (sitting, lying, or standing), automatically matches preset physiotherapy plans and adjusts parameters, and locks the current settings after the user manually modifies them, preventing further automatic changes. The physiotherapy main control computing unit receives and processes commands from the opto-isolation module (such as mode switching, fault alarms, and standby / sleep modes), coordinates the work of each unit, executes a graded safety protection algorithm, and communicates with the audio main control unit through the opto-isolation module. The high-voltage isolation output unit boosts the low-voltage pulse signal output from the multi-waveform pulse generation unit to the high voltage required for physiotherapy via a boost circuit, achieves electrical isolation from the front-end circuit through an isolation transformer or optocoupler, and finally outputs it to the human body through an electrode output socket.

[0039] The power supply module 106 supplies power to the first motherboard 102 and the second motherboard 104. For example, the power supply module 106 can supply power to the first motherboard 102 via the first branch 107 and to the second motherboard 104 via the second branch 108. For example, the power supply module 106 may include a shared lithium battery and an isolated power board (also known as a dual-channel isolated DC-DC power board). For example, the first branch 107 and the second branch 108 can be integrated onto this isolated power board. The power supply module 106, the first branch 107, and the second branch 108 can be housed within a third cavity. For example, the strong and weak current lines in this physiotherapy device can be routed in separate sections, with audio signal lines and high-voltage physiotherapy lines separated. This avoids interference from wiring coupling and meets the design requirements of a fully hardware-decoupled and isolated dual-controller architecture.

[0040] like Figure 1 As shown in Figure (b), the physiotherapy device may further include mode function buttons, status indicator lights, a charging interface, a main power switch, an electrode output socket (also referred to as an electrode output terminal), and an electrode wire storage slot (not shown in the figure). The mode function buttons are used to trigger switching of the physiotherapy device's operating mode. For example, the operating modes of the physiotherapy device may include a pure speaker mode, a pure physiotherapy mode, and a sound therapy synchronous mode. The pure speaker mode is a mode in which only the first mainboard 102 operates; the pure physiotherapy mode is a mode in which only the second mainboard 104 operates; and the sound therapy synchronous mode is a mode in which both the first mainboard 102 and the second mainboard 104 operate simultaneously. The status indicator lights are used to indicate the current operating mode, operating status, charging status, etc., of the physiotherapy device. The charging interface is used to connect an external power source to charge the battery in the power supply module 106. For example, the charging interface may be a Type-C interface, etc. The main power switch is used to control the physiotherapy device to start or stop. The electrode output socket is used to connect electrode pads 105 or electrode wires. The electrode wire storage slot is used to store electrode pads 105 or electrode wires. For example, the electrode storage slot may be located on the side of the physiotherapy device, etc., but this application embodiment does not limit this.

[0041] The first cavity and the second cavity can be separated by the composite shielding partition. Optionally, the composite shielding partition may include one or more of an electromagnetic shielding layer, a thermal insulation layer, and a vibration-damping sealing layer. The electromagnetic shielding layer is used to block the electric and magnetic field coupling between the first and second cavities, preventing electromagnetic radiation from the high-voltage pulses of the physiotherapy unit from interfering with the audio signal, and preventing electromagnetic noise from the audio amplifier from polluting the physiotherapy circuitry. The thermal insulation layer is used to prevent heat generated by the boost module and power devices in the lower physiotherapy cavity from being conducted upwards to the upper audio cavity, avoiding high temperatures that could degrade the performance of the audio circuitry or damage the speaker assembly 103. The vibration-damping sealing layer is used to absorb and attenuate the mechanical vibrations of the upper speaker during operation, which are transmitted downwards to the physiotherapy cavity. It also fills the gap between the partition and the housing 101, achieving airtight isolation between the upper and lower cavities and preventing sound wave leakage and dust intrusion.

[0042] The electromagnetic shielding layer can shield the electromagnetic signals generated by the first mainboard 102 and the second mainboard 104, the thermal insulation layer can ensure thermal stability, and the vibration damping and sealing layer can improve structural reliability. Through this composite shielding and isolation partition, electromagnetic interference, temperature interference, and vibration interference between the first mainboard 102 and the second mainboard 104 can be effectively isolated, providing a good and stable working environment for the operation of the first mainboard 102 and the second mainboard 104, and improving the operational stability and reliability of the physiotherapy equipment.

[0043] For example, such as Figure 2 As shown, Figure 2 The system uses a lithium battery to output power. The power first passes through a battery balancing and charge / discharge protection circuit to ensure power safety, and then is sent to a dual-channel independent isolated DC-DC regulator and a multi-stage LC filter circuit. The power management module divides the power into two paths: one path supplies the first motherboard 102, which receives signals through Bluetooth / AUX audio input, optimizes them through a DSP audio processing circuit, and then amplifies them through a controllable on / off power amplifier circuit to drive the speaker assembly 103 to produce sound; the other path supplies the second motherboard 104, where the control signal generated is used to produce low-voltage pulses through a multi-waveform pulse generation circuit. After the voltage and current are increased by a boost constant current drive circuit, the pulses flow through a five-dimensional sensor array and are finally applied to the human body through the electrode output terminal for therapeutic purposes.

[0044] In this embodiment, the housing 101 is divided into three independent cavities, and a composite shielding partition is used to physically isolate the audio system (i.e., the first motherboard 102 and speaker assembly 103) from the electrostimulation system (i.e., the second motherboard 104). Two independent power supply branches are used to power the two systems respectively. Thus, on the one hand, the composite shielding partition effectively blocks electromagnetic radiation, heat conduction, and mechanical vibration between the audio system and the physiotherapy system, eliminating common cross-interference problems such as audio distortion and pulse distortion that occur when both systems operate simultaneously, ensuring the output accuracy of each system. On the other hand, the two independent power supply branches avoid crosstalk caused by a common ground in the power circuit, completely decoupling the audio system and the physiotherapy system electrically, allowing them to operate independently or coordinate without interference under subsequent control. Furthermore, the power supply module 106 is placed separately in the third cavity, facilitating battery management and heat dissipation, further improving the overall safety and reliability of the device. Through physical structure and power architecture, hardware-level independent operation can be achieved, significantly improving the device's anti-interference capability, functional flexibility, and operational safety.

[0045] In some embodiments, the first branch 107 includes one or more of a first isolated DC-DC circuit and a first inductor capacitor (LC) filter circuit, and the second branch 108 includes one or more of a second isolated DC-DC circuit and a second LC filter circuit.

[0046] The first isolated DC-DC circuit is used to convert the DC voltage of the power supply module 106 into a stable operating voltage required by the first motherboard 102, and there is no direct electrical connection between its input and output circuits. In this case, the secondary output terminal of the first isolated DC-DC circuit serves as the reference ground of the first motherboard 102.

[0047] The second isolated DC-DC circuit is used to convert the DC voltage of the power supply module 106 into a stable operating voltage required by the second motherboard 104, and there is no direct electrical connection between its input and output circuits. In this case, the secondary output terminal of the second isolated DC-DC circuit serves as the reference ground of the second motherboard 104.

[0048] The first LC filter circuit is used to perform secondary purification of the output DC voltage, filtering out high-frequency ripple, spike noise and residual switching frequency harmonics generated by the high-speed switching of the DC-DC switching transistor, so as to provide a clean DC power supply for the audio system (i.e., the first motherboard 102).

[0049] The second LC filter circuit is used to suppress ripple and smooth the output DC voltage, providing a stable, low-ripple operating voltage for the pulse generation circuit and boost constant current drive circuit in the physiotherapy system (i.e., the second motherboard 104), ensuring that the amplitude, width and waveform accuracy of the electrical stimulation pulse are not affected by power supply fluctuations.

[0050] Because the first motherboard 102 and the second motherboard 104 share a common ground wire, they can interfere with each other. When the second motherboard 104 outputs a high-voltage pulse, the pulse current can enter the circuit of the first motherboard 102 through the common ground loop, potentially causing audio signal distortion or even damaging the audio chip. By using the first and second isolation DC-DC circuits, the first motherboard 102 and the second motherboard 104 can each have independent reference grounds, avoiding them sharing a common ground and effectively preventing mutual interference during operation. Furthermore, the first LC filter circuit filters the DC power input to the first motherboard 102, and the second LC filter circuit filters the DC power input to the second motherboard 104, ensuring that both motherboards 102 and 104 receive clean power. This guarantees the stable operation of the physiotherapy device.

[0051] In some embodiments, the physiotherapy device includes an opto-isolation module, which includes a first opto-isolation unit and a second opto-isolation unit. The input terminal of the first opto-isolation unit is connected to the first input / output (IO) port of the first motherboard 102, and the output terminal of the first opto-isolation unit is connected to the first IO port of the second motherboard 104. The input terminal of the second opto-isolation unit is connected to the second IO port of the second motherboard 104, and the output terminal of the second opto-isolation unit is connected to the second IO port of the first motherboard 102.

[0052] The opto-isolation module is used to enable one-way command interaction between the first motherboard 102 and the second motherboard 104 while maintaining electrical isolation.

[0053] The first opto-isolation unit is used to realize one-way communication between the first motherboard 102 and the second motherboard 104.

[0054] The second opto-isolation unit is used to enable one-way communication between the second motherboard 104 and the first motherboard 102.

[0055] In this way, the first motherboard 102 and the second motherboard 104 can communicate without electrical connection. Furthermore, since the first and second opto-isolation units can only communicate in one direction, no signal loop is formed. This allows for hardware-level independent operation of audio and physiotherapy, improving the stability and safety of the physiotherapy device.

[0056] Optionally, the physiotherapy device may include one or more of the following: a self-test phase, an independent working mode, a collaborative working mode, and a fault linkage phase. The self-test phase refers to the phase in which the first mainboard 102 and / or the second mainboard 104 perform a self-test after the physiotherapy device is powered on. The independent working mode refers to the mode in which only the first mainboard 102 or the second mainboard 104 operates in the physiotherapy device. The collaborative working mode refers to the mode in which the first mainboard 102 and the second mainboard 104 operate collaboratively in the physiotherapy device. The fault linkage phase refers to the mode in which the first mainboard 102 and the second mainboard 104 coordinate to handle a fault in the physiotherapy device.

[0057] For example, the first motherboard 102 and the second motherboard 104 can communicate during the self-test phase, the independent working mode, the collaborative working mode, and the fault linkage phase. This is explained below: Optionally, during the self-test phase, if the first motherboard 102 completes the self-test, it sends a first self-test completion signal to the second motherboard 104 through the first opto-isolation unit to indicate that the hardware of the first motherboard 102 is normal; if the second motherboard 104 completes the self-test, it sends a second self-test completion signal to the first motherboard 102 through the second opto-isolation unit to indicate that the hardware of the second motherboard 104 is normal.

[0058] In this way, the first motherboard 102 and the second motherboard 104 can promptly know the self-test results of each other, and thus know the status of their respective devices. Therefore, if either the first motherboard 102 or the second motherboard 104 malfunctions, the user can be promptly alerted to take action and the system can be stopped immediately to prevent safety accidents.

[0059] Optionally, upon receiving an independent operating mode signal, the first motherboard 102 outputs an audio signal and sends a first indication signal to the second motherboard 104 through the first opto-isolation unit to instruct the second motherboard 104 to enter a low-power mode; or, the second motherboard 104 outputs an electrical stimulation pulse signal and sends a second indication signal to the first motherboard 102 through the second opto-isolation unit to instruct the first motherboard 102 to enter a low-power mode.

[0060] For example, this standalone working mode may include a pure speaker mode or a pure physiotherapy mode.

[0061] In this way, in the independent working mode, when only one of the first motherboard 102 or the second motherboard 104 is working, the other enters a low-power mode, which can reduce unnecessary energy consumption and avoid accidental operation.

[0062] Optionally, upon receiving a cooperative working mode signal, the first motherboard 102 outputs an audio signal and sends a third indication signal to the second motherboard 104 through the first opto-isolation unit to instruct the second motherboard 104 to output an electrical stimulation pulse signal, and / or, the second motherboard 104 receives the third working mode signal; outputs an electrical stimulation pulse signal, and sends a fourth indication signal to the first motherboard 102 through the second opto-isolation unit to instruct the first motherboard 102 to output an audio signal.

[0063] For example, this collaborative working mode could be a sound therapy synchronization mode.

[0064] In this way, under this collaborative working mode, the first motherboard 102 and the second motherboard 104 can operate simultaneously and communicate in isolation, enabling them to work collaboratively.

[0065] Optionally, in the event of a fault linkage phase, the first motherboard 102 sends a fifth indication signal to the second motherboard 104 through the first opto-isolation unit to indicate that the second motherboard 104 enters a low-power state; and / or, the second motherboard 104 sends a sixth indication signal to the first motherboard 102 through the second opto-isolation unit to indicate that the first motherboard 102 enters a low-power state.

[0066] The fault linkage stage refers to the stage when the first motherboard 102 detects a fault and / or the second motherboard 104 detects a fault.

[0067] In this way, if there is an abnormality in the first motherboard 102 and / or the second motherboard 104, the physiotherapy device can be prevented from continuing to output high power in a timely manner, thereby avoiding damage to the device as much as possible, reducing the probability of safety accidents, and ensuring the safe operation of the device.

[0068] In some embodiments, the first motherboard 102 includes a beat sampling circuit, the input of which is connected to the input of the speaker assembly 103, and the output of which is connected to the input of the first opto-isolation unit. The beat sampling circuit is used to: acquire the beat rate of the audio signal input to the speaker assembly 103; and send the beat rate to the second motherboard 104 through the first opto-isolation unit. The second motherboard 104 is used to: adjust the pulse frequency of the output electrical stimulation pulse signal based on the beat rate.

[0069] For example, the beat rate can be determined based on the drumbeats and accented rhythms of the audio signal. Specifically, the beat sampling circuit can analyze the drumbeats, accented rhythms, etc., of the playing audio signal in real time to determine the beat rate (i.e., how many beats per minute). This beat rate is converted into an optical signal and sent to the second mainboard 104 through the first opto-isolation unit. After receiving the continuous beat pulses, the second mainboard 104 adjusts its own physiotherapy pulse start and stop rhythm solely based on the beat speed.

[0070] For example, the pulse frequency of an electrical stimulation pulse signal refers to the pulse interval duration of the output electrical stimulation pulse signal. For example, when the audio signal is a slow-paced, soothing piece of music, the pulse interval duration of the electrical stimulation pulse signal is longer and the frequency is lower; when the audio signal is a fast-paced, dynamic piece of music, the pulse interval duration of the electrical stimulation pulse signal is shorter and the frequency is higher.

[0071] This beat sampling circuit allows for the decoupling of the functions of the first motherboard 102 and the second motherboard 104, enabling the operation of a synchronized sound therapy mode while preventing high-voltage noise from the therapy pulses from affecting the audio signal. Furthermore, because the first motherboard 102 and the second motherboard 104 operate independently, adjusting the music volume or switching songs does not change the magnitude, intensity, or waveform of the therapy current, and manually adjusting the therapy intensity or mode does not alter the audio playback effect. Thus, users can independently adjust therapy parameters according to their needs, providing a richer therapy experience.

[0072] In some embodiments, the second mainboard 104 includes a harmonic filtering circuit disposed in the output circuit of the electrical stimulation pulse signal, the harmonic filtering circuit being used to: filter out high-frequency harmonic components in the electrical stimulation pulse signal; and / or, the physiotherapy device further includes an electromagnetic radiation absorption module disposed at the perforation of the composite shielding isolation partition; and / or, the first mainboard 102 includes an audio dynamic noise reduction circuit; and / or, the second mainboard 104 includes a burr filtering circuit.

[0073] This harmonic filtering circuit is used to remove high-frequency components of electrical stimulation pulses to protect human tissues (high frequencies are prone to burns).

[0074] This electromagnetic radiation absorption module is used to absorb electromagnetic waves radiated into space through the perforations in the composite shielding partition. The perforations in the composite shielding partition refer to the locations where openings are made in the partition for connecting wiring.

[0075] This audio dynamic noise reduction circuit is used to filter out audio noise.

[0076] This glitch filtering circuit is used to eliminate glitches in electrical stimulation signals.

[0077] By incorporating this harmonic filtering circuit into the second motherboard 104, high-frequency components in the pulse output can be reduced, external radiation can be decreased, and the pulse waveform can be made purer, thus improving the comfort of physiotherapy. This electromagnetic radiation absorption module can compensate for the decrease in shielding effectiveness caused by perforations in the composite shielding isolation plate, maintaining overall electromagnetic compatibility and preventing interference with audio signals. The audio dynamic noise reduction circuit can detect and cancel residual noise in real time, ensuring good audio playback. The glitch filtering circuit can eliminate pulse spikes, preventing users from experiencing needle-like discomfort, while also reducing electromagnetic radiation, improving user experience and equipment safety.

[0078] In some embodiments, the second motherboard 104 includes one or more of an impedance sensor, a microcurrent sensor, and a first temperature sensor; and / or, the physiotherapy device further includes one or more of a second temperature sensor, an unloaded detection module, and a short-circuit detection module; the impedance sensor is disposed at the electrode output terminal of the second motherboard 104 and is used to detect the first impedance value of human skin; the microcurrent sensor is disposed in the output circuit of the electrical stimulation pulse signal and is used to detect the first current value output at the electrode output terminal of the second motherboard 104; the first temperature sensor is disposed in the boost converter of the second motherboard 104. The circuit is used to detect the temperature value of the boost circuit; the second temperature sensor is set on the electrode plate 105 to detect the temperature value of the electrode plate 105; the no-load detection module is set between the electrode output terminal of the second main board 104 and the electrode plate 105 to detect the second current value between the electrode output terminal of the second main board 104 and the electrode plate 105, and determines the no-load detection result based on the second current value; the short-circuit detection module is set between the positive electrode line and the negative electrode line in the electrode plate 105 to detect the second impedance value between the positive electrode line and the negative electrode line, and determines the short-circuit detection result based on the second impedance value.

[0079] This impedance sensor is used to detect skin impedance in order to determine the quality of electrode contact.

[0080] This microcurrent sensor is used to detect the actual output current at the electrode output terminal to prevent the current from exceeding the limit.

[0081] The first temperature sensor is used to detect the temperature of the boost circuit to prevent it from being damaged by overheating.

[0082] The second temperature sensor is used to monitor the temperature of the electrode pad 105 in contact with the skin to determine whether the temperature of the electrode pad 105 is too high, so as to avoid burns caused by excessive temperature.

[0083] The no-load detection module is used to detect whether the electrode 105 is connected to the human body, preventing the danger caused by high-voltage pulse discharge when no load is applied.

[0084] The electrode wire is the conductor connecting the electrode plates. This short-circuit detection module is used to detect whether there is a short circuit between the electrode wires (such as electrode plates sticking together or cable damage), to avoid excessive current in the event of a short circuit.

[0085] By employing an impedance sensor, a micro-current sensor, a first temperature sensor, a second temperature sensor, an unloaded detection module, and a short-circuit detection module (i.e., a five-dimensional sensing array), this physiotherapy device can comprehensively perceive existing problems. Furthermore, under multi-dimensional monitoring, it can quickly diagnose the root cause of the problem, providing a basis for subsequent targeted fault handling. This improves the safety of device operation.

[0086] In some implementations, the second motherboard 104 can determine whether an abnormality exists based on one or more of the following: the first impedance value, the first current value, the temperature value of the boost circuit, the temperature value of the electrode plate 105, the no-load detection result, and the short-circuit detection result; if an abnormality exists, a target handling scheme is determined based on the type of the abnormality, which includes any one of minor abnormality, contact abnormality, and extreme fault.

[0087] This minor anomaly refers to a slight deviation in parameters during equipment operation, which has a minimal impact on the basic functions of the equipment and user safety. For example, this minor anomaly may include one or more of the following: slight impedance fluctuations, slight temperature rises, etc., and this application embodiment does not limit this. Optionally, in the case of a minor anomaly, the target processing scheme may be to gradually reduce the pulse power of the electrical stimulation pulse signal.

[0088] This contact abnormality refers to a low contact quality between the electrode pad 105 and the human body, resulting in a significant increase in impedance or abnormal current. If not addressed promptly, it may cause stinging or electric arcing, significantly impacting the user. For example, this contact abnormality may include the electrode pad 105 becoming loose or partially detached from the skin, and failing to recover within 30 seconds. Optionally, in cases where this abnormality is a contact abnormality, the target treatment could be to lock the electrical stimulation pulse signal and alert the user with sound and light.

[0089] This extreme failure refers to a serious hardware malfunction or dangerous condition in the equipment that may immediately endanger personal safety or equipment safety. For example, this extreme failure may include one or more of the following: short circuit, sudden overcurrent, or excessively high temperature; however, this application embodiment does not limit this. Optionally, in the event of this abnormality being an extreme failure, the high-voltage power supply to the physiotherapy unit can be cut off, and the entire machine can be shut down for protection.

[0090] If one or more of the following are abnormal: first impedance value, first current value, temperature value of the boost circuit, temperature value of electrode plate 105, no-load test result, and short-circuit test result, it indicates that there is an abnormality. Therefore, the type of abnormality can be determined, and a target treatment plan can be determined accordingly for targeted treatment. If there are no abnormalities in the following four parameters: first impedance value, first current value, temperature value of the boost circuit, temperature value of electrode plate 105, no-load test result, and short-circuit test result, it indicates that the equipment is currently operating normally, so it can continue to operate.

[0091] Through a three-tiered protection mechanism, the equipment can adaptively select the optimal solution based on anomalies, thereby achieving smooth power reduction for minor anomalies, self-locking for contact anomalies with timeouts, and rapid power-off for extreme faults. This improves operational stability, safety, and user experience. Furthermore, by detecting anomalies through multi-dimensional data, the probability of false positives and false negatives can be reduced, improving equipment usability.

[0092] In some embodiments, the second motherboard 104 includes a latching switch disposed on a high-voltage pulse output path between the output terminal of the boost circuit in the second motherboard 104 and the electrode output terminal of the second motherboard 104. The latching switch is used to turn off or on the high-voltage pulse output path. And / or, the second motherboard 104 includes a low-voltage detection circuit. A first detection terminal of the low-voltage detection circuit is connected to a first pin in the electrode output terminal of the second motherboard 104, and a second detection terminal of the low-voltage detection circuit is connected to a second pin in the electrode output terminal of the second motherboard 104. The electrode piece 105 connected to the first pin and the electrode piece 105 connected to the second pin form a loop. The low-voltage detection circuit is used to detect a third impedance value of the loop. The second motherboard 104 is used to: determine the type of the electrode piece 105 based on the third impedance value, and determine whether the electrode piece 105 is in contact with a human body based on the third impedance value.

[0093] The type of electrode pad 105 refers to different categories classified according to the physical shape, material, contact area, and applicable treatment area of ​​the electrode. For example, the type of electrode pad 105 may include one or more of the following: patch electrode, ear clip electrode, foot therapy pad, etc., but this embodiment does not limit this. Different types of electrode pads have different impedance values. By obtaining the third impedance value of the currently connected electrode pad 105, the type of the currently connected electrode pad 105 can be determined, and thus the treatment area can be determined. For example, large square patches are suitable for use on large areas of muscles in the lower back and thighs; small round patches are suitable for use on small areas of the cervical spine, wrists, and joints; ear clip electrodes are suitable for ear acupoint electrodes; and foot electrode pads are suitable for foot therapy.

[0094] Since users may need to replace electrode pads 105 during physiotherapy, the locking switch and low-voltage detection circuit allow the physiotherapy device to detect the insertion and removal of electrode pads 105 in real time during operation. Upon detecting this insertion or removal, the high-voltage pulse output can be immediately shut off to prevent stinging or burning. The low-voltage detection circuit also allows the device to monitor whether the electrode pads 105 are properly attached, thus determining whether to activate the high-voltage pulse output. This provides two advantages: firstly, users can replace electrode pads 105 at any time during device operation without experiencing electric shock or stinging, greatly improving ease of use; secondly, ensuring the electrode pads 105 are properly attached before resuming high-voltage output avoids the safety hazards of no-load output. Furthermore, compared to software detection, hardware circuitry offers a faster and more stable response.

[0095] Optionally, the operation of the second motherboard 104 in determining whether the electrode 105 is in contact with the human body based on the third impedance value can be as follows: if the third impedance value is greater than or equal to the open circuit threshold, it is determined that the electrode 105 is not in contact with the human body; if the third impedance value is less than the open circuit threshold, it is determined that the electrode 105 is in contact with the human body.

[0096] The open circuit threshold can be preset.

[0097] In some implementations, the second motherboard 104 includes a posture sensor for acquiring posture data of the physiotherapy device; the second motherboard 104 is used to: determine the user posture based on the posture data, and determine a target physiotherapy plan based on the user posture and the type of electrode pads 105.

[0098] The user posture refers to the user's current position. For example, the user posture may include one or more of sitting, lying, and standing postures, but this application embodiment does not limit this.

[0099] Since the posture data of the physiotherapy device can reflect the user's current posture when wearing or holding the physiotherapy device, and the type of electrode pad 105 can reflect the area that the user wants to treat, the target physiotherapy plan can be determined more accurately based on the user's posture and the type of electrode pad 105.

[0100] In this way, the physiotherapy device can adaptively sense the current usage scenario and switch the physiotherapy plan accordingly, thereby improving the device's intelligence and enhancing the user experience.

[0101] In some embodiments, the second motherboard 104 is also used to: receive a physiotherapy parameter adjustment instruction and adjust the physiotherapy parameters in the physiotherapy plan based on the physiotherapy parameter adjustment instruction.

[0102] For example, the physiotherapy parameters may include one or more of pulse intensity, pulse frequency, and pulse waveform mode, etc., and the embodiments of this application do not limit this. Among them, the pulse intensity may include multiple current levels, the pulse frequency may include low-frequency soothing, medium-frequency massage, high-frequency tapping, etc., the pulse waveform mode may include simulated massage waveforms such as percussion, kneading, massage, acupuncture, and vibration, the working interval time may include continuous output, alternating operation of working for a few seconds and pausing for a few seconds, etc., and the physiotherapy timer duration may include 10 minutes, 20 minutes, 30 minutes, etc.

[0103] In some cases, after the second motherboard 104 adjusts the physiotherapy parameters in the physiotherapy plan, it can lock the physiotherapy parameters and prevent them from being automatically modified after subsequent changes in posture. This can maintain user preferences and better meet user needs.

[0104] For example, the first motherboard 102 may include a digital signal processor (DSP) audio processing circuit, a controllable on / off power amplifier circuit, etc., which are not limited in this embodiment. The DSP audio processing circuit performs digital algorithm processing on the input audio signal, such as active noise reduction, sound field expansion, and loudness equalization, and outputs a digital audio drive signal. The controllable on / off power amplifier circuit is used to respond to on or off commands. In the on state, it amplifies the digital audio signal output by the DSP audio processing circuit to drive the speaker assembly 103 to produce sound; or in the off state, it cuts off the audio channel.

[0105] Optionally, the first motherboard 102 and the speaker assembly 103 can be disposed in the first cavity or the second cavity. Specifically, the first motherboard 102, the speaker assembly 103, the digital signal processor (DSP) processing circuit, the controllable on / off power amplifier circuit, etc. can be fixedly installed in the first cavity or the second cavity, and sound-absorbing and vibration-damping cotton is pasted inside the cavity to achieve acoustic noise reduction and electromagnetic shielding.

[0106] For example, the first motherboard 102 may include an audio function module, which may include an audio input unit, an audio decoding unit, a DSP audio calibration unit, an audio main control operation unit, a power amplifier controllable on / off unit, an upper shielded cavity sound generation unit, etc. This application embodiment does not limit this.

[0107] The audio input unit is used to connect to an audio signal source. For example, the audio signal source can be a signal source transmitted via Bluetooth wireless communication or an auxiliary (AUX) audio input interface to the target device. For example, the target device can be a mobile device, a laptop, etc., but this embodiment does not limit this. The audio decoding unit is used to decode the received digital audio encoded data into a pulse code modulation digital audio stream, or to convert the received analog audio signal into a digital audio stream after analog-to-digital conversion. The DSP audio calibration unit is used to perform equalization adjustment, dynamic range compression, loudness normalization, and sound field expansion on the digital audio stream. And based on audio line noise detection, reverse noise generation and superposition, etc.; the audio main control operation unit is used to receive the mode switching command, fault alarm signal and standby / sleep command of the opto-isolation module described below; the power amplifier controllable on / off unit is used to amplify the audio signal processed by the DSP audio calibration unit and output it to the upper shielded cavity sound generation unit when it receives the on command of the audio main control operation unit, and is also used to cut off the power amplifier output path and put the speaker assembly 103 into a silent state when it receives the off command of the audio main control operation unit; the upper shielded cavity sound generation unit is used to convert the amplified audio electrical signal into sound waves and radiate them outward.

[0108] The second mainboard 104 is used to output electrical stimulation pulse signals. The second mainboard 104 may include an electrode socket for connecting to electrode pads 105 and outputting electrical stimulation pulse signals to the electrode pads 105. Optionally, the second mainboard 104 can be disposed within the first cavity or the second cavity. Specifically, the second mainboard 104 (i.e., the physiotherapy main control circuit board), pulse generation circuit, boost drive module, five-dimensional sensing detection circuit, and electrode identification circuit can be arranged within the first cavity or the second cavity, and the cavity is treated with high-voltage insulation and protective wiring.

[0109] For example, the second motherboard 104 may include a parameter configuration unit, a multi-waveform pulse generation unit, a five-dimensional safety detection unit, an electrode intelligent recognition unit, a posture scene adaptation unit, a physiotherapy main control computing unit, and a high-voltage isolation output unit. The parameter configuration unit stores and manages physiotherapy parameters (such as frequency, pulse width, intensity, waveform type, working time, etc.), receives adjustment instructions from the target device or main control to update parameters, and sends these updates to the waveform generation unit. The multi-waveform pulse generation unit generates corresponding electrical stimulation pulse signals based on the frequency, pulse width, and waveform type set by the parameter configuration unit and outputs them to the high-voltage isolation output unit. The five-dimensional safety detection unit collects various safety data in real time and reports them to the physiotherapy main control computing unit for graded safety protection. The electrode intelligent recognition unit measures the electrode circuit impedance using low-voltage high-frequency signals during high-voltage output shutdown, automatically identifies the currently connected electrode type (such as patches, ear clips, foot clips, etc.), determines whether it is in contact with the human body, and feeds the result back to the parameter configuration unit. The system matches appropriate parameter limits; the posture scene adaptation unit receives posture sensor data, identifies the current usage posture of the physiotherapy device (sitting, lying, standing), automatically matches preset physiotherapy plans and adjusts parameters, and locks the current settings after the user manually modifies the parameters so they will not change automatically; the physiotherapy main control and computing unit receives and processes instructions from the opto-isolation module (such as mode switching, fault alarm, standby sleep), coordinates the work of each unit, executes hierarchical safety protection algorithms, and communicates with the audio main control through the opto-isolation module; the high-voltage isolation output unit boosts the low-voltage pulse signal output by the multi-waveform pulse generation unit to the high voltage required for physiotherapy through a boost circuit, and achieves electrical isolation from the front-end circuit through an isolation transformer or optocoupler, and finally outputs it to the human body through the electrode output socket.

[0110] To facilitate understanding, the following will be combined with... Figure 3 The workflow of the physiotherapy device provided in the embodiments of this application will be described by way of example.

[0111] Figure 3 This is a flowchart illustrating the operation of a physiotherapy device provided in an embodiment of this application. Figure 3 As shown, the workflow of the physiotherapy device may include the following steps 301 to 324.

[0112] Step 301: Power on the physiotherapy equipment.

[0113] Step 302: The physiotherapy device performs a self-check of the battery status.

[0114] Step 303: The physiotherapy device starts up with a regulated output through a dual-channel isolated power supply.

[0115] Step 304: The audio controller and the physiotherapy controller in the physiotherapy device perform hardware self-tests respectively.

[0116] Step 305: The audio controller and the physiotherapy controller communicate via a handshake through an opto-isolation module.

[0117] Step 306: Check whether the audio controller and the physiotherapy controller are functioning normally.

[0118] If either the audio controller or the physiotherapy controller has an abnormal self-test, proceed to step 307; if both the audio controller and the physiotherapy controller have normal self-tests, proceed to step 308.

[0119] Step 307: The physiotherapy equipment malfunctions and the machine shuts down.

[0120] Step 308: The user clicks the mode button on the physiotherapy device.

[0121] If the user clicks the mode button for pure speaker mode, proceed to step 309; if the user clicks the mode button for pure electrical stimulation mode, proceed to step 313; if the user clicks the mode button for dual-function synergy mode, proceed to step 317.

[0122] Step 309: The physiotherapy device enters the pure speaker mode.

[0123] Step 310: Unlock the sound amplifier of the physiotherapy device.

[0124] Step 311: The physiotherapy device decodes and plays audio signals, and the volume can be adjusted independently.

[0125] Step 312: The physiotherapy equipment plays or switches between loops.

[0126] Step 313: The physiotherapy device enters the pure electrical stimulation mode.

[0127] Step 314: The physiotherapy device unlocks the high-voltage pulse circuit of the physiotherapy.

[0128] Step 315: The physiotherapy device performs electrode hot-plug identification and judgment, and automatically matches the basic physiotherapy parameters.

[0129] Step 316: The physiotherapy equipment performs five-dimensional safety closed-loop real-time monitoring.

[0130] Step 317: The physiotherapy device enters the dual-function collaborative mode.

[0131] Step 318: The physiotherapy device simultaneously unlocks the speaker mode and the electrical stimulation mode.

[0132] Step 319: The physiotherapy equipment operates with two independent asynchronous systems. Optionally, unidirectional beat synchronization can be enabled.

[0133] Step 320: The physiotherapy device can independently adjust audio parameters and physiotherapy parameters.

[0134] Step 321: The physiotherapy device receives a power-off / switching command.

[0135] Step 322: The physiotherapy device receives a shutdown command, shuts down peripherals step by step - dual main control low-power sleep mode - process ends.

[0136] Step 323: The physiotherapy device shuts down the corresponding high-voltage circuit and saves the parameters.

[0137] Step 324: The physiotherapy device returns to standby mode.

[0138] In this embodiment, the physiotherapy device includes: a housing 101, a first main board 102, a speaker assembly 103, a second main board 104, electrode pads 105, a power supply module 106, a first branch circuit 107, and a second branch circuit 108. The inner cavity of the housing 101 includes a first cavity, a second cavity, and a third cavity. A composite shielding partition is provided in the inner cavity of the housing 101, separating the first cavity from the second cavity. The first cavity is provided with the first main board 102 and the speaker assembly 103. The output terminal of the first main board 102 is connected to the input terminal of the speaker assembly 103, and the first main board 102 is used to output audio signals. The second cavity is provided with the second main board 104. The electrode output terminal of the second main board 104 is connected to the electrode pads 105, and the second main board 104 is used to output electrical stimulation pulse signals. The third cavity is provided with the power supply module 106, which supplies power to the first main board 102 through the first branch circuit 107 and to the second main board 104 through the second branch circuit 108. By dividing the housing 101 into three independent cavities and using a composite shielding partition to physically isolate the audio system (i.e., the first motherboard 102 and speaker assembly 103) from the electrostimulation system (i.e., the second motherboard 104), and employing two independent power supply branches for each system, the system achieves several advantages. Firstly, the composite shielding partition effectively blocks electromagnetic radiation, heat conduction, and mechanical vibration between the audio and physiotherapy systems, eliminating common cross-interference issues such as audio distortion and pulse aberration when both systems operate simultaneously, ensuring the accuracy of each system's output. Secondly, the two independent power supply branches avoid crosstalk caused by shared power circuits, completely decoupling the audio and physiotherapy systems electrically, allowing them to operate independently or coordinate without interference under subsequent control. Thirdly, the power supply module 106 is placed separately in the third cavity, facilitating battery management and heat dissipation, further enhancing the overall safety and reliability of the device. Through its physical structure and power architecture, hardware-level independent operation can be achieved, significantly improving the device's anti-interference capability, functional flexibility, and operational safety.

[0139] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0140] In the embodiments provided in this application, it should be understood that the disclosed apparatus / computer devices and methods can be implemented in other ways. For example, the apparatus / computer device embodiments described above are merely illustrative. For instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, devices, or units, and may be electrical, mechanical, or other forms. Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, i.e., they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this application according to actual needs.

[0141] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties. Furthermore, the collection, use and processing of the relevant data must comply with the relevant regulations and standards of the relevant countries and regions, and corresponding operation entry points are provided for users to choose to authorize or refuse.

[0142] The embodiments described above are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A physiotherapy device, characterized in that, The physiotherapy device includes: a housing, a first main board, a speaker assembly, a second main board, electrode pads, a power supply module, a first branch circuit, and a second branch circuit; The inner cavity of the housing includes a first cavity, a second cavity, and a third cavity. A composite shielding partition is provided in the inner cavity of the housing, and the first cavity and the second cavity are separated by the composite shielding partition. The first cavity is provided with the first motherboard and the speaker assembly. The output terminal of the first motherboard is connected to the input terminal of the speaker assembly. The first motherboard is used to output audio signals. The second cavity is provided with the second main board, the electrode output terminal of the second main board is connected to the electrode plate, and the second main board is used to output electrical stimulation pulse signals; The third cavity is equipped with the power supply module, which supplies power to the first motherboard through the first branch and to the second motherboard through the second branch.

2. The physiotherapy device as described in claim 1, characterized in that, The first branch includes one or more of a first isolated DC-DC circuit and a first LC filter circuit, and the second branch includes one or more of a second isolated DC-DC circuit and a second LC filter circuit.

3. The physiotherapy device as described in claim 1, characterized in that, The physiotherapy device includes an opto-isolation module, which includes a first opto-isolation unit and a second opto-isolation unit. The input terminal of the first opto-isolation unit is connected to the first input / output (IO) port of the first motherboard, and the output terminal of the first opto-isolation unit is connected to the first IO port of the second motherboard. The input terminal of the second opto-isolation unit is connected to the second I / O port of the second motherboard, and the output terminal of the second opto-isolation unit is connected to the second I / O port of the first motherboard.

4. The physiotherapy device as described in claim 3, characterized in that, The physiotherapy device is used to: during the self-test phase, if the first motherboard completes the self-test, send a first self-test completion signal to the second motherboard through the first opto-isolation unit to indicate that the hardware of the first motherboard is normal; If the second motherboard completes its self-test, it sends a second self-test completion signal to the first motherboard through the second opto-isolation unit to indicate that the hardware of the second motherboard is normal. And / or, The physiotherapy device is used to: upon receiving an independent operating mode signal, the first motherboard outputs an audio signal and sends a first indication signal to the second motherboard via the first opto-isolation unit to instruct the second motherboard to enter a low-power mode; or, the second motherboard outputs an electrical stimulation pulse signal and sends a second indication signal to the first motherboard via the second opto-isolation unit to instruct the first motherboard to enter a low-power mode; and / or, The physiotherapy device is used to: upon receiving a collaborative working mode signal, the first motherboard outputs an audio signal, and sends a third indication signal to the second motherboard through the first opto-isolation unit to indicate that the second motherboard outputs an electrical stimulation pulse signal, and / or the second motherboard outputs an electrical stimulation pulse signal, and sends a fourth indication signal to the first motherboard through the second opto-isolation unit to indicate that the first motherboard outputs an audio signal; And / or, The physiotherapy device is used to: in the case of a fault linkage phase, the first motherboard sends a fifth indication signal to the second motherboard through the first opto-isolation unit to indicate that the second motherboard enters a low-power state; And / or, the second motherboard sends a sixth indication signal to the first motherboard through the second opto-isolation unit to indicate that the first motherboard enters a low-power state.

5. The physiotherapy device as described in claim 3, characterized in that, The first motherboard includes a beat sampling circuit, the input terminal of which is connected to the input terminal of the speaker assembly, and the output terminal of which is connected to the input terminal of the first opto-isolation unit. The beat sampling circuit is used to: acquire the beat rate of the audio signal input to the speaker assembly; and send the beat rate to the second motherboard through the first opto-isolation unit. The second motherboard is used to adjust the pulse frequency of the output electrical stimulation pulse signal based on the beat rate.

6. The physiotherapy device as described in claim 1, characterized in that, The second motherboard includes a harmonic filtering circuit, which is disposed in the output circuit of the electrical stimulation pulse signal. The harmonic filtering circuit is used to: filter out high-frequency harmonic components in the electrical stimulation pulse signal; and / or, The physiotherapy device further includes an electromagnetic radiation absorption module, which is disposed at the perforation of the composite shielding isolation partition; and / or, The first motherboard includes an audio dynamic noise reduction circuit; and / or, The second motherboard includes a burr filter circuit.

7. The physiotherapy device as described in claim 1, characterized in that, The second motherboard includes one or more of an impedance sensor, a microcurrent sensor, and a first temperature sensor; and / or, the physiotherapy device further includes one or more of a second temperature sensor, an unloaded detection module, and a short-circuit detection module. The impedance sensor is located at the electrode output terminal of the second motherboard and is used to detect the first impedance value of human skin. The microcurrent sensor is disposed in the output circuit of the electrical stimulation pulse signal and is used to detect the first current value output by the electrode output terminal of the second motherboard. The first temperature sensor is located in the boost circuit of the second motherboard and is used to detect the temperature value of the boost circuit. The second temperature sensor is disposed on the electrode plate and is used to detect the temperature value of the electrode plate; The no-load detection module is disposed between the electrode output terminal of the second motherboard and the electrode plate, and is used to detect the second current value between the electrode output terminal of the second motherboard and the electrode plate, and determine the no-load detection result based on the second current value; The short-circuit detection module is disposed between the positive electrode line and the negative electrode line in the electrode sheet, and is used to detect the second impedance value between the positive electrode line and the negative electrode line, and determine the short-circuit detection result based on the second impedance value.

8. The physiotherapy device as described in claim 7, characterized in that, The second motherboard is used to: determine whether there is an abnormality based on one or more of the first impedance value, the first current value, the temperature value of the boost circuit, the temperature value of the electrode plate, the no-load detection result, and the short-circuit detection result; In the event of an anomaly, a target handling plan is determined based on the anomaly type, which includes any one of minor anomalies, contact anomalies, and extreme faults.

9. The physiotherapy device as described in claim 1, characterized in that, The second motherboard includes a latching switch, which is disposed on the high-voltage pulse output path between the output terminal of the boost circuit in the second motherboard and the electrode output terminal of the second motherboard. The latching switch is used to turn off or on the high-voltage pulse output path. And / or, The second motherboard includes a low-voltage detection circuit. A first detection terminal of the low-voltage detection circuit is connected to a first pin in the electrode output terminal of the second motherboard, and a second detection terminal of the low-voltage detection circuit is connected to a second pin in the electrode output terminal of the second motherboard. The electrode piece connected to the first pin and the electrode piece connected to the second pin form a loop. The low-voltage detection circuit is used to detect a third impedance value of the loop. The second motherboard is used to: determine the type of the electrode piece based on the third impedance value, and determine whether the electrode piece is in contact with the human body based on the third impedance value.

10. The physiotherapy device as described in any one of claims 1 to 9, characterized in that, The second motherboard includes a posture sensor for acquiring posture data of the physiotherapy device; the second motherboard is used to: determine the user posture based on the posture data, and determine a target physiotherapy plan based on the user posture and the type of electrode pads; And / or, The second motherboard is also used to: receive physiotherapy parameter adjustment instructions, and adjust the physiotherapy parameters in the physiotherapy plan based on the physiotherapy parameter adjustment instructions.

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