A miniaturized intermediate frequency treatment device based on PI heating film and frequency conversion voltage boosting

Abstract

A kind of miniaturization intermediate frequency treatment equipment based on PI heating film and frequency conversion voltage boosting, including host computer, circuit module and heating assembly, circuit module includes electronic voltage boosting module, IC frequency conversion voltage boosting technology is used to boost lithium battery voltage to high voltage required for physiotherapy;Waveform modulation module, a variety of basic waveforms are modulated by high-frequency PWM, and the modulated wave is obtained by further modulating the waveform by waveform algorithm, and finally the modulated wave is driven to act on the load;PID temperature control module, real-time monitoring of skin temperature and adjusting heating power by PID algorithm;Heating assembly is PI heating film assembly, PI heating film assembly and skin contact form load loop, and uniform heating is realized by driving load loop through intermediate frequency carrier wave.Based on the principle of voltage boosting and waveform modulation, the application requirement of product miniaturization is realized, the overall size of product is greatly reduced compared with the market, referring to the voltage boosting mode, lithium battery is boosted to high voltage, and circuit discards transformer and other bulky components, so that product miniaturization can be realized.

Description

Technical Field

[0001] This utility model belongs to the field of electronic technology of traditional Chinese medicine physiotherapy devices, specifically relating to a miniaturized medium-frequency therapy device based on PI heating film and frequency conversion boost. Background Technology

[0002] In ancient my country, acupuncture and detoxification therapies were used to treat diseases. Later, massage and other physical therapies emerged. Building upon these methods and incorporating advancements in electronic technology, a technique using electrical energy to treat human ailments was developed. This technology, combined with related electronic technologies, has led to the creation of various electronic devices that simulate acupuncture and massage therapies. Existing intermediate-frequency devices mainly include intermediate-frequency therapeutic instruments and intermediate-frequency massagers. Their basic principle involves using a transformer to boost direct current to generate a high-level voltage, which is then controlled by an MCU to output a variable waveform.

[0003] Among them, existing intermediate frequency therapy devices, whose application principle is based on transformer voltage boosting, cannot be made smaller and cannot be applied to micro-devices; existing intermediate frequency therapy devices have low heating material conversion efficiency and high overall power consumption, so they are generally designed with external switching power supplies, are not movable, and are not suitable for complex applications; existing intermediate frequency therapy devices have built-in output cables, which require external straps for fixation during use, resulting in a poor user experience; existing intermediate frequency devices are usually wired or large in size, and must remain static during operation, causing inconvenience and cumbersome operation for users; existing lithium battery intermediate frequency devices have high overall energy consumption and large size due to their voltage boosting and heating characteristics.

[0004] Therefore, there is a market demand for a miniaturized intermediate frequency therapy device based on a PI heating film and variable frequency voltage boosting, which features high boosting efficiency, low heat loss, stable operation under low current, small size, and simple operation. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a miniaturized intermediate frequency therapy device based on a PI heating film and variable frequency boost.

[0006] To address the aforementioned technical problems, this utility model adopts the following technical solution: a miniaturized intermediate-frequency therapeutic device based on a PI heating film and variable frequency boosting, comprising a main unit, a circuit module disposed within the main unit, and a heating component. The circuit module includes: an electronic boosting module, which uses IC variable frequency boosting technology to boost the lithium battery voltage to the high voltage required for physiotherapy; a waveform modulation module, which uses high-frequency PWM to modulate various basic waveforms, further modulates these basic waveforms using a waveform algorithm to obtain a modulated wave, and finally drives the modulated wave onto the load via an intermediate-frequency carrier wave; and a PID temperature control module, which monitors skin temperature in real time and adjusts the heating power using a PID algorithm. The heating component is a PI heating film assembly, which forms a load circuit in contact with the skin, and uniform heating is achieved by driving the load circuit via an intermediate-frequency carrier wave. Based on the boosting principle and waveform modulation principle, this device meets the requirements for miniaturized application, significantly reducing the overall size compared to devices on the market.

[0007] In some embodiments, a quick-connect magnetic snap mechanism is also included, which enables rapid connection and disconnection between the main unit and the heating assembly. This facilitates easy detachment of the surface mount load from the main unit, avoids wired operation, and simplifies the operation procedure.

[0008] In some embodiments, the PI heating film assembly includes a substrate, a multi-wire annular heating circuit, and a conductive window for rapid disconnection of the load circuit. The conductive window is located in the middle of the PI heating film assembly, and the multi-wire annular heating circuit is located on both sides of the conductive window. Using a dedicated PI heating film results in high conversion efficiency and low transmission attenuation, which can further reduce battery capacity and significantly improve product size reduction.

[0009] In some embodiments, the host includes a housing, buttons, a motherboard, and a battery. The motherboard is located inside the housing, the buttons are located on both sides of the housing, the battery is attached to the bottom of the motherboard and disposed inside the housing, the charging port is located at one end of the housing, and the quick-connect magnetic buckle mechanism is located at the top of the host.

[0010] In some embodiments, the PID temperature control module includes: a temperature sensor for real-time acquisition of the treatment area temperature, an MCU controller for executing a PID algorithm to adjust the heating power, and a MOS drive circuit for controlling the operation of the PI heating film assembly. Employing the PID algorithm improves the stability of the device's output temperature, avoids overheating safety hazards, and significantly reduces output power, thereby extending the product's lifespan.

[0011] In some embodiments, the electronic boost module includes a boost IC chip for implementing high-frequency frequency conversion boost, a driving circuit for the boost IC chip, and an output filtering circuit.

[0012] In some implementations, the waveform modulation module may output therapeutic waveforms including sine waves, triangular waves, trapezoidal waves, exponential waves, and sawtooth waves, driven by an intermediate frequency carrier of 1kHz-10kHz.

[0013] The scope of this utility model is not limited to technical solutions formed by specific combinations of the above-mentioned technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-mentioned technical features or their equivalent features. For example, technical solutions formed by substituting the above-mentioned features with technical features that have similar functions as disclosed in this application (but not limited to those with similar functions).

[0014] Due to the application of the above technical solutions, this utility model has the following advantages compared with the prior art: This utility model provides a miniaturized intermediate frequency therapy device based on a PI heating film and frequency conversion boost. The disclosed miniaturized intermediate frequency therapy device refers to the boost mode, boosting the lithium battery to a high voltage. The circuit eliminates large-volume components such as transformers, thus achieving product miniaturization. Heating is achieved using a PI film, which has high heating efficiency. For localized heating, it achieves low overall energy consumption and high efficiency. It supports lithium battery power supply, allowing the product to be disconnected from the power cord, making it suitable for complex environments. The device can be moved during use. It adopts a quick-release magnetic buckle connection, allowing the device and the treatment area to be disconnected at will without additional straps, meeting the user's need to perform other applications while using it. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the internal circuit of a miniaturized intermediate frequency application device. Figure 2 This is a schematic diagram of a miniaturized intermediate frequency application device. Figure 3 A flowchart illustrating the usage of a miniaturized intermediate frequency application device; Figure 4 This is a schematic diagram of a surface mount load for a miniaturized intermediate frequency application device. The components are as follows: 1-1, Intermediate frequency output circuit; 1-2, Heating output circuit; 1-3, Waveform modulation circuit; 1-4, Boost circuit; 2-1, Housing; 2-2, Quick-connect magnetic buckle; 2-3, Control button; 2-4, Charging port; 4-1 & 4-4, Intermediate frequency application section; 4-2 & 4-6, Heating power input interface; 4-3 & 4-5, Intermediate frequency input interface. Detailed Implementation

[0016] As shown in the accompanying figures, a miniaturized intermediate-frequency therapy device based on a PI heating film and variable frequency boost includes a main unit, a circuit module disposed inside the main unit, and a heating component.

[0017] like Figure 1As shown, the circuit module includes: an electronic boost module, which uses IC frequency conversion boost technology to boost the lithium battery voltage to the high voltage required for physiotherapy; a waveform modulation module, which uses high-frequency PWM to modulate various basic waveforms, and then further modulates the basic waveforms through waveform algorithms to obtain a modulated wave, which is finally driven by an intermediate frequency carrier to act on the load; a PID temperature control module, which monitors the skin temperature in real time and adjusts the heating power through a PID algorithm; and a heating component, which is a PI heating film component. The PI heating film component forms a load circuit in contact with the skin, and uniform heating is achieved by driving the load circuit through an intermediate frequency carrier.

[0018] During voltage boosting, the IC frequency converter boosts the voltage, which has the advantages of a boost drive frequency of up to 1.2MHz, high boost efficiency, low heat loss, and stable operation in low-current applications. The waveform output uses an amplifier and a second-order filter circuit for conversion, and can output application waveforms such as triangular waves, sine waves, and trapezoidal waves. During mid-frequency operation, a MOS-driven PI heating film is used to generate heat, which is applied directly to the skin. PID adjustment is performed based on the real-time temperature to ensure stable skin temperature. The mid-frequency electrotherapy and compress modes work together to enhance the electrotherapy effect and improve the user experience.

[0019] In this embodiment, the boost method is as follows: Figure 1 The device employs boost circuits 1-4, using electronic boosting instead of transformers to reduce the overall size of the equipment. It utilizes electronic chips to boost the low-voltage lithium battery VBAT to the high-voltage therapeutic Vout, thereby achieving miniaturization.

[0020] The waveform modulation circuit 1-3 is used to achieve intermediate frequency output by using high-frequency PWM modulation, which enables the waveform modulation module to output various basic waveforms, such as sine waves, triangular waves, trapezoidal waves, exponential waves, sawtooth waves, etc. In this implementation scheme, the PWM0 modulated waveform is modulated by the waveform algorithm, and finally the modulated wave is driven by the intermediate frequency 1k-10khz carrier to act on the load. The intermediate frequency output circuit 1-1 is used to achieve intermediate frequency output. As shown in the waveform modulation circuit 1-3, the PWM waveform input is modulated by the filter circuit, and then the final modulated wave is output to the load by signal amplification.

[0021] The PI heating film assembly includes a substrate, a multi-wire annular heating circuit, and a conductive window for rapid disconnection of the load circuit. The conductive window is located in the middle of the PI heating film assembly, and the multi-wire annular heating circuit is located on both sides of the conductive window. Refer to the output temperature and total power requirements, such as... Figure 4 In this design, the heating drive uses a multi-line ring-shaped surround method to achieve uniform heating and reduce the total power requirement. At the same time, a conductive window is added to the heating area to meet the application requirements of disconnection at any time.

[0022] In this embodiment, the PI heating film assembly is made of PI film, which has low energy consumption and high heating efficiency. Figure 4As shown, the intermediate frequency (IF) application sections 4-1 and 4-4 contact the skin to form a load circuit, which is then connected to the host computer via IF input interfaces 4-3 and 4-5. The host computer outputs the IF waveform to the load circuit through the interface. Figure 4 In the center, the left and right circular areas are the heating zones. The main unit connects to these heating zones via heating power input interfaces 4-2 and 4-6. The main unit outputs power to adjust the heat of the heating zones. Figure 1 In the heating output circuit 1-2, the MCU uses PID to adjust the output power, thereby achieving temperature regulation.

[0023] like Figure 2 As shown, the main unit of the miniaturized intermediate frequency therapy device includes a metal main unit casing 2-1, control buttons 2-3, a motherboard and a battery, as well as a quick-connect magnetic buckle mechanism 2-2, which enables quick connection and disconnection between the main unit and the heating power input interfaces 4-2 and 4-6 of the PI heating film assembly.

[0024] The motherboard is located inside the main unit casing 2-1, the control buttons 2-3 are located on both sides of the main unit casing 2-1, the battery is attached to the bottom of the motherboard and located inside the main unit casing 2-1, the charging port 2-4 is located at one end of the main unit casing 2-1, and the quick-connect magnetic latch mechanism 2-2 is located at the top of the main unit. Its overall structure is compact, allowing for quick connection and disconnection, meeting the requirements of miniaturized applications.

[0025] The PID temperature control module includes: a temperature sensor that collects the temperature of the treatment area in real time, an MCU controller that executes the PID algorithm to adjust the heating power, and a MOS drive circuit that controls the operation of the PI heating film assembly.

[0026] The electronic boost module includes a boost IC chip for implementing high-frequency frequency conversion boost, a driver circuit for the boost IC chip, and an output filter circuit.

[0027] like Figure 3 As shown, in actual use, the following steps are included: Step 1, attach the main unit to the PI heating film assembly, turn on the device, set the required level using the buttons, and place the PI heating film tightly against the skin to form a load circuit with the skin. The device automatically outputs the corresponding intermediate frequency pulse, while controlling the heating power output and automatically adjusting the patch temperature; Step 2, boost the lithium battery voltage to the voltage required for physiotherapy using the IC chip; Step 3, modulate the waveform using PWM, achieve waveform output modulation through waveform algorithm, and finally drive the modulated wave to act on the load through an intermediate frequency 1k-10khz carrier wave; Step 4, collect the temperature in real time and adjust the heating power in real time using a PID algorithm.

[0028] In step 4, the real-time temperature acquisition and real-time adjustment of heating power using a PID algorithm are as follows: Step 41, when the acquired temperature is too low, the heating power output is activated, and the heating output power is adjusted using a PID algorithm. After the temperature reaches a certain set temperature, the heating power output is turned off, and the MCU outputs a modulation waveform, which is then applied to the patch. Step 42, when the acquired temperature is too high, the MCU disconnects the heating power output. Step 41 or Step 42 is executed automatically according to the acquired temperature until the end of the entire cycle. PID adjustment can save the application power consumption of the equipment, further reducing the total power consumption and thus saving space.

[0029] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A miniaturized intermediate-frequency therapy device based on a PI heating film and variable frequency boost, comprising a main unit, a circuit module disposed inside the main unit, and a heating component, characterized in that, The circuit module includes: The electronic boost module uses IC frequency conversion boost technology to boost the lithium battery voltage to the high voltage required for physiotherapy; The waveform modulation module uses high-frequency PWM to modulate various basic waveforms, then further modulates the basic waveforms using a waveform algorithm to obtain a modulated wave, and finally drives the modulated wave to act on the load through an intermediate frequency carrier. The PID temperature control module monitors skin temperature in real time and adjusts the heating power using a PID algorithm. The heating component is a PI heating film component. The PI heating film component forms a load circuit in contact with the skin, and uniform heating is achieved by driving the load circuit through an intermediate frequency carrier.

2. The miniaturized intermediate-frequency therapy device based on a PI heating film and variable frequency voltage boosting as described in claim 1, characterized in that, It also includes a quick-connect magnetic buckle mechanism, which enables quick connection and disconnection between the main unit and the heating component.

3. The miniaturized intermediate-frequency therapy device based on a PI heating film and variable frequency voltage boosting as described in claim 1, characterized in that, The PI heating film assembly includes a substrate, a multi-line annular heating circuit, and a conductive window for quickly disconnecting the load circuit. The conductive window is located in the middle of the PI heating film assembly, and the multi-line annular heating circuit is located on both sides of the conductive window.

4. The miniaturized intermediate-frequency therapy device based on a PI heating film and variable frequency voltage boosting as described in claim 2, characterized in that, The host includes a casing, buttons, a motherboard, and a battery. The motherboard is located inside the casing, the buttons are located on both sides of the casing, the battery is attached to the bottom of the motherboard and is located inside the casing, the charging port is located at one end of the casing, and the quick-connect magnetic buckle mechanism is located at the top of the host.

5. The miniaturized intermediate-frequency therapy device based on a PI heating film and variable frequency boosting as described in claim 4, characterized in that, The PID temperature control module includes: a temperature sensor that collects the temperature of the treatment area in real time, an MCU controller that executes a PID algorithm to adjust the heating power, and a MOS drive circuit that controls the operation of the PI heating film assembly.

6. The miniaturized intermediate-frequency therapy device based on a PI heating film and variable frequency boosting as described in claim 4, characterized in that, The electronic boost module includes a boost IC chip for realizing high-frequency frequency conversion boost, a driving circuit for the boost IC chip, and an output filtering circuit.

7. The miniaturized intermediate-frequency therapy device based on a PI heating film and variable frequency boosting as described in claim 4, characterized in that, The waveform modulation module can output therapeutic waveforms including sine waves, triangular waves, trapezoidal waves, exponential waves, and sawtooth waves, driven by a 1kHz-10kHz intermediate frequency carrier.

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