Thermotherapy Low-Potential Therapy Device and Control Method

Abstract

This invention relates to the field of therapeutic devices, and more specifically, to a low-potential thermal therapeutic device and its control method. The low-potential thermal therapeutic device includes: a main unit, a therapeutic blanket, and a controller; the main unit is equipped with the controller, which is connected to the therapeutic blanket; the controller includes: a temperature acquisition module, a temperature control module, and a low-potential frequency conversion and voltage transformation module; wherein the low-potential frequency conversion and voltage transformation module includes an IGBT transistor; this invention uses an IGBT transistor in the low-potential frequency conversion and voltage transformation module to control the switching of heat and potential on a single heating wire. Because the IGBT transistor has a sufficiently high voltage rating, it isolates the potential circuit, thus preventing damage to the heating circuit components, thereby achieving the heating potential on the same heating wire, and thus achieving compatibility between potential and heat.

Description

Technical Field

[0001] This invention relates to the field of therapeutic devices, and more specifically, to a thermotherapy low-potential therapeutic device and its control method. Background Technology

[0002] The warm low-potential therapy device is a physiotherapy instrument that precisely controls the operation and parameter settings of the treatment blanket or pad through a main unit, outputting warm and low-potential energy. This device transmits the warm and low-potential energy field to the human body through the treatment blanket or pad, thereby exerting its unique therapeutic effects. Under the influence of warmth, it can improve the metabolism of muscle cells, promote blood circulation, accelerate tissue regeneration and repair, enhance the body's immunity, and has anti-inflammatory and analgesic effects. Under the influence of the low-potential energy field, cells in various parts of the body produce extremely subtle vibrations, the functional balance of various organs and tissues is fully adjusted, and directional movements between cells are generated in accordance with the current cycle, promoting the balance of the internal environment. Catecholamines, 5-TH, and other neurotransmitters maintain a relative balance, which is beneficial for promoting relaxation, eliminating tension, eliminating abnormal brain waves and brain magnetism, enhancing the diffusive inhibitory function of the cerebral cortex, and allowing the brain to transition from the β wave state during tension to the normal α wave state. The functions of the cerebral cortex, autonomic nervous system, and humoral endocrine system return to normal, thereby improving tension, fatigue, and sleep quality. However, existing heating and low-potential products have relatively limited functions and therapeutic effects, failing to meet the diverse treatment needs of patients. Traditional heating mattresses only provide heating, while traditional low-potential products can only provide low-potential therapy. In winter, this may cause the patient's local skin temperature to drop too low, potentially leading to tingling or numbness, shivering, and hindering relaxation, thus reducing comfort and effectiveness.

[0003] Existing technology discloses a controller for a potentiometric thermotherapy device with a screen lock function, including a controller housing, and a thermotherapy control unit, a potential control unit, an ultrasonic control unit, a touch screen, and a screen lock control unit disposed inside the controller housing. The output terminal of the touch screen is connected to the signal input terminals of the thermotherapy control unit, the potential control unit, and the ultrasonic control unit, respectively, and the control terminal of the touch screen is connected to the screen lock control unit. This application integrates a screen lock control module into the controller, providing an automatic screen lock function. When the potentiometric thermotherapy device is set to a certain function for treatment, the touch screen module of the controller automatically locks the screen. Touching other touch keys does not interfere with the current treatment mode; other operations can only be performed after pressing the unlock touch key for a second preset time, reducing the error rate and thus improving the treatment effect. However, this invention still cannot simultaneously address both thermotherapy and low-point positioning functions. Summary of the Invention

[0004] The purpose of this invention is to disclose a warm low-potential therapy device and its control method that combines the functions of heat and low potential.

[0005] To achieve the above objectives, the present invention provides a thermal low-potential therapy device and a control method, comprising: a main unit, a therapy blanket, and a controller; wherein the main unit is equipped with a controller, and the controller is connected to the therapy blanket.

[0006] The controller includes: a temperature acquisition module, a temperature control module, and a low-potential frequency converter module; wherein the temperature control module is connected to both the temperature acquisition module and the low-potential frequency converter module.

[0007] The temperature acquisition module collects the temperature data of the treatment blanket, the temperature control module controls the heat output of the treatment blanket, and the low-potential frequency conversion and voltage conversion module controls the low-potential output of the treatment blanket.

[0008] The low-potential frequency converter module includes an IGBT transistor.

[0009] The main unit includes a lower shell and an upper shell; a button cover is installed on the upper shell, and a treatment blanket connection cable, a power socket, a power switch, a switching power supply, and a function output board are installed on the lower shell. The power socket is connected to the power switch, the power switch is connected to the function output board, the function output board is connected to the switching power supply, the switching power supply is connected to the control motherboard, the control motherboard is connected to the function output board, and the function output board is connected to the treatment blanket connection cable.

[0010] The controller also includes: a central control module, a button module, an alarm prompt module, a display module, a timing control module, and a storage module; among which the low-potential frequency conversion and voltage transformation module includes an IGBT transistor.

[0011] The controller includes: a central control module, a button module, an alarm prompt module, a display module, a timing control module, a storage module, a temperature acquisition module, a temperature control module, and a low-potential frequency converter module; the low-potential frequency converter module includes an IGBT transistor.

[0012] Furthermore, the function output board includes: a heating control circuit, a heating temperature detection circuit, a negative potential control circuit, and a negative potential boosting circuit. The heating control circuit is connected to the treatment blanket connection cable via the heating temperature detection circuit; the negative potential control circuit is connected to the treatment blanket connection cable via the negative potential boosting circuit.

[0013] Furthermore, the treatment blanket includes: a waterproof and non-slip base fabric, on top of which is spray-bonded cotton, on top of which is black carbon cotton, and on top of which is heat-rolled non-woven fabric. Heating wires are installed on the inner side of the heat-rolled non-woven fabric, and the heating wires are connected to a temperature protector, a temperature fuse, and a treatment blanket connector. The treatment blanket connector is connected to a temperature sensor. A second black carbon cotton is placed on top of the heat-rolled non-woven fabric, a second spray-bonded cotton is placed on top of the second black carbon cotton, a sponge is placed on top of the second spray-bonded cotton, and a fleece is placed on top of the sponge.

[0014] Furthermore, the controller includes: a central control module, with a button module unidirectionally electrically connected to its input terminal, an alarm module unidirectionally electrically connected to its output terminal, a display module unidirectionally electrically connected to its output terminal, a timing control module unidirectionally electrically connected to its input terminal, a storage module bidirectionally electrically connected to its output terminal, a temperature acquisition module unidirectionally electrically connected to its input terminal, a temperature control module unidirectionally electrically connected to its output terminal, and a low-potential frequency converter module unidirectionally electrically connected to its output terminal.

[0015] The low-potential frequency converter module includes: input voltage, varistor RV1, capacitors C2, C3, C4, C5, C6, and C7, resistors R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R27, R28, R29, and R30, optocouplers OP1, OP2, OP3, OP4, and OP5, IGBT transistors M1, Q1, Q2, Q3, Q4, and Q5, and a common-mode inductor T3.

[0016] The input voltage terminals are connected to varistor RV1, capacitor C2, and common-mode inductor T3, respectively. The two ends of common-mode inductor T3 are connected to capacitor C3. One end of capacitor C3 is connected to resistors R8, R9, and R10. The other end of resistor R8 is connected to optocoupler OP3, the other end of resistor R9 is connected to optocoupler OP4, and the other end of resistor R10 is connected to optocoupler OP5. Optocoupler OP3 is connected to transistor Q3 via resistor R28. 4. Transistor Q4 is connected via resistor R29; optocoupler OP5 is connected via resistor R30 to transistor Q5; one end of transistor Q3 is grounded, and the other end is connected to resistors R15 and R16 respectively; one end of transistor Q4 is grounded, and the other end is connected to resistors R17 and R18 respectively; one end of transistor Q5 is grounded, and the other end is connected to resistors R19 and R20 respectively; the other end of capacitor C3 is connected via resistor R7 to optocouplers OP3, OP4, and OP5 respectively; Resistor R7 is connected to capacitor C7. One end of resistor R14 is connected to the signal generator, and the other end is connected to resistor R13 and transistor Q2. The other end of transistor Q2 is connected to optocoupler OP1 through resistor R1. The other end of optocoupler OP1 is connected to resistor R3. The other end of transistor Q2 is connected to resistor R12 and transistor Q1. Transistor Q1 is connected to optocoupler OP2 through resistors R11 and R27. The other end of optocoupler OP2 is connected to IGBT transistor M1 through resistor R2. The other end of optocoupler OP2 is connected to capacitor C4 and diode D1 through resistors R3, R4, R5, and R6. The other end of diode D1 is connected to capacitor C5 and diode D2. The other end of capacitor C4 is connected to the other end of diode D2 and capacitor C6. The other end of capacitor C5 is connected to diodes D3, D4, and C7. C6 is connected to diodes D3 and D4 and resistor R7.

[0017] Furthermore, the present invention also provides a control method for a thermal low-potential therapeutic device, comprising:

[0018] Lay the treatment blanket flat on the table, connect the power supply to the power socket, and turn on the power switch;

[0019] The controller displays the current status of the therapeutic device and provides a visualization of the output temperature and potential data; it also receives user commands and control signals.

[0020] Then, according to the set time, the low-potential function and temperature are controlled by the control motherboard and function output board.

[0021] Furthermore, the controller includes: a display module that displays the current status of the therapeutic device and visualizes the output temperature and potential data; a user-defined button module that receives commands and control signals as needed; a timing control module that drives the temperature control module and the low-potential frequency converter module according to user-set or default time settings; and a central control module that can only control either the temperature control module or the low-potential frequency converter module at a time. When the button module receives a user command to activate only the heating function, the temperature acquisition module collects temperature data from the therapeutic blanket's temperature sensor, and the temperature control module controls the heating wire of the therapeutic blanket to output heating. When the button module receives a user command to activate only the low-potential function, the low-potential frequency converter module controls the heating wire of the therapeutic blanket to output low-potential. When the button module receives a user command to activate both the heating and low-potential functions simultaneously, the central control module prioritizes the temperature control module, controlling its output to the therapeutic blanket's heating wire at the set time, followed by the low-potential frequency converter module's output to the heating wire at the set time. The output voltages for both heating and low-potential functions can be applied to the same output carrier. When the alarm module detects an abnormal state of the treatment device, it will send an alarm notification to the user through the display module.

[0022] Furthermore, it includes: information processing for human-computer interaction on the control motherboard, temperature output control, temperature detection and processing, low-potential waveform modulation, and low-potential output control.

[0023] Furthermore, it includes: a power socket for connecting to AC power to provide power input to the whole machine; a power switch for controlling the on / off of the input power of the therapeutic instrument; and a switching power supply for converting the input AC power into DC power to control the main board and function output board for power supply.

[0024] Furthermore, it includes: a function output board for receiving control signals from the control motherboard to output functions to the treatment blanket, and for feeding back the temperature data of the treatment blanket to the control motherboard.

[0025] Furthermore, the low-potential frequency converter module comprises:

[0026] The low-potential output of the circuit is generated by an iterative pulse wave that is boosted by a negative-potential boosting circuit at one end and a pulse wave that is periodically modulated by a controlled M1 transistor that is turned on and off at high speed at the other end.

[0027] The generation of the negative potential sine wave is achieved by controlling the optocoupler to conduct through the negative potential range control signal, which causes one of the resistors to perform voltage division to select the voltage before voltage multiplication. The voltage is then boosted by a voltage boosting circuit composed of diodes, and the positive terminal of the diode is taken to output the negative potential of the sine wave. The negative potential of the sine wave is then output to the low potential output terminal of the circuit through four current-limiting 1M resistors.

[0028] The generation of modulated pulse waves: A square wave signal with varying frequency and pulse width period is iterated through an IGBT transistor to a negative potential sine wave generated by a boost circuit. The signal is then output to the treatment blanket via the low potential output terminal of the circuit. The output frequency, effective voltage value, and waveform are controlled by the output control signal.

[0029] Warm output: The control signal controls the conduction of the transistor, which in turn controls the conduction of the optocoupler, making the thyristor conduct. The common terminal of the heating wire is connected to the low-potential output terminal of the circuit. At this time, the control signal output is always in a high-level state, the optocoupler conducts, and a voltage difference is formed between the gate and the source, which is applied to the common terminal of the heating wire, and the treatment blanket generates heat.

[0030] Compared with the prior art, the beneficial effects of the technical solution of the present invention are:

[0031] This invention uses IGBT transistors in a low-potential frequency conversion and voltage conversion module to control the switching of heat and potential on a single heating line. Since the IGBT transistor has a sufficiently high voltage rating, it isolates the potential circuit, thus preventing damage to the heating circuit components. This achieves the heating potential on the same heating line, thereby realizing the compatibility of potential and heat. Attached Figure Description

[0032] Figure 1 This is a structural diagram of the low-potential thermal therapy device described in Example 1;

[0033] Figure 2 This is a schematic diagram of the controller described in Embodiment 1;

[0034] Figure 3 This is a schematic diagram of the therapeutic blanket structure described in Example 2;

[0035] Figure 4 This is a schematic diagram of the cross-sectional structure of the treatment blanket described in Example 2;

[0036] Figure 5 This is the circuit diagram of the low-potential frequency converter and voltage converter module described in Example 5;

[0037] The components include: 1. Main unit; 2. Treatment blanket; 3. Controller; 4. Main unit lower shell; 5. Main unit upper shell; 6. Control motherboard; 7. Button cover; 8. Treatment blanket connection cable; 9. Power socket; 10. Power switch; 11. Switching power supply; 12. Function output board;

[0038] 201. Waterproof and non-slip base fabric; 202. Spray-bonded cotton; 203. Black carbon cotton; 204. Heating wire; 205. Heat-rolled non-woven fabric; 206. Black carbon cotton; 207. Spray-bonded cotton; 208. Sponge; 209. Fleece; 210. Temperature sensor; 211. Temperature protector; 212. Temperature fuse; 213. Therapeutic blanket connector;

[0039] 301. Central control module; 302. Button module; 303. Alarm prompt module; 304. Display module; 305. Timing control module; 306. Storage module; 307. Temperature acquisition module; 308. Temperature control module; 309. Low-potential frequency converter module; Detailed Implementation

[0040] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent.

[0041] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0042] Example 1:

[0043] This embodiment provides, as follows: Figure 1 The shown warm low-potential therapy device includes:

[0044] The host 1, the treatment blanket 2, and the controller 3 are provided; the host 1 is equipped with the controller 3, and the controller 3 is connected to the treatment blanket 2.

[0045] Controller 3 includes: a temperature acquisition module 307, a temperature control module 308, and a low-potential frequency converter module 309; wherein the temperature control module 308 is connected to both the temperature acquisition module 307 and the low-potential frequency converter module 309.

[0046] Temperature acquisition module 307 acquires temperature data of treatment blanket 2, temperature control module 308 controls the heat output of treatment blanket, and low potential frequency conversion and voltage conversion module 309 controls the low potential output of treatment blanket 2; low potential frequency conversion and voltage conversion module 309 includes an IGBT transistor.

[0047] This embodiment uses an IGBT transistor in a low-potential frequency converter module to control the switching of heat and potential on a single heating line. Since the IGBT transistor has a sufficiently high voltage rating, it isolates the potential circuit, thus preventing damage to the heating circuit components. This achieves the heating potential on the same heating line 202, thereby realizing compatibility between potential and heat.

[0048] Example 2:

[0049] This embodiment further discloses information based on Embodiment 1:

[0050] 2. The warm low-potential therapeutic device according to claim 1, characterized in that it further comprises:

[0051] The main unit 1 includes a lower shell 4 and an upper shell 5. A button film 7 is installed on the upper shell 5. The lower shell 4 is equipped with a treatment blanket connection cable 8, a power socket 9, a power switch 10, a switching power supply 11, and a function output board 12. The power socket 9 is connected to the power switch 10, the power switch 10 is connected to the function output board 12, the function output board 12 is connected to the switching power supply 10, the switching power supply 10 is connected to the control motherboard 6, the control motherboard 6 is connected to the function output board 12, and the function output board 12 is connected to the treatment blanket connection cable 4.

[0052] The controller 3 also includes: a central control module 301, a button module 302, an alarm prompt module 303, a display module 304, a timing control module 305, and a storage module 306;

[0053] The function output board 12 includes: a heating control circuit, a heating temperature detection circuit, a negative potential control circuit, and a negative potential boosting circuit. The heating control circuit is connected to the treatment blanket connection cable via the heating temperature detection circuit; the negative potential control circuit is connected to the treatment blanket connection cable via the negative potential boosting circuit.

[0054] Treatment Blanket 2 Figure 3 and Figure 4 The device includes: a waterproof and non-slip base fabric 201, a spray-bonded cotton 202 on top of the waterproof and non-slip base fabric 201, a black carbon cotton 203 on top of the spray-bonded cotton 202, a heat-rolled non-woven fabric 205 on top of the black carbon cotton 203, a heating wire 204 installed on the inner side of the heat-rolled non-woven fabric 205, the heating wire 204 being connected to a temperature protector 211, a temperature fuse 212 and a treatment blanket connector 213 respectively, the treatment blanket connector 213 being connected to a temperature sensor 210, a second black carbon cotton 206 on top of the heat-rolled non-woven fabric 205, a second spray-bonded cotton 207 on top of the second black carbon cotton 206, a sponge 208 on top of the second spray-bonded cotton 207, and a fleece 209 on top of the sponge 208.

[0055] The controller 3 includes: a central control module 301, with a button module 302 electrically connected to the input terminal of the central control module 301 in one direction, an alarm prompt module 303 electrically connected to the output terminal of the central control module 301 in one direction, a display module 304 electrically connected to the output terminal of the central control module 301 in one direction, a timing control module 305 electrically connected to the input terminal of the central control module 301 in one direction, a storage module 306 electrically connected to the output terminal of the central control module 301 in two directions, a temperature acquisition module 307 electrically connected to the input terminal of the central control module 301 in one direction, a temperature control module 308 electrically connected to the output terminal of the central control module 301 in one direction, and a low-potential frequency conversion and voltage transformation module 309 electrically connected to the output terminal of the central control module 301 in one direction.

[0056] The low-potential frequency converter module 309 includes: input voltage, varistor RV1, capacitors C2, C3, C4, C5, C6, and C7, resistors R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R27, R28, R29, and R30, optocouplers OP1, OP2, OP3, OP4, and OP5, IGBT transistors M1, Q1, Q2, Q3, Q4, and Q5, and a common-mode inductor T3.

[0057] The input voltage terminals are connected to varistor RV1, capacitor C2, and common-mode inductor T3, respectively. The two ends of common-mode inductor T3 are connected to capacitor C3. One end of capacitor C3 is connected to resistors R8, R9, and R10. The other end of resistor R8 is connected to optocoupler OP3, the other end of resistor R9 is connected to optocoupler OP4, and the other end of resistor R10 is connected to optocoupler OP5. Optocoupler OP3 is connected to transistor Q3 via resistor R28. 4. Transistor Q4 is connected via resistor R29; optocoupler OP5 is connected via resistor R30 to transistor Q5; one end of transistor Q3 is grounded, and the other end is connected to resistors R15 and R16 respectively; one end of transistor Q4 is grounded, and the other end is connected to resistors R17 and R18 respectively; one end of transistor Q5 is grounded, and the other end is connected to resistors R19 and R20 respectively; the other end of capacitor C3 is connected via resistor R7 to optocouplers OP3, OP4, and OP5 respectively; Resistor R7 is connected to capacitor C7. One end of resistor R14 is connected to the signal generator, and the other end is connected to resistor R13 and transistor Q2. The other end of transistor Q2 is connected to optocoupler OP1 through resistor R1. The other end of optocoupler OP1 is connected to resistor R3. The other end of transistor Q2 is connected to resistor R12 and transistor Q1. Transistor Q1 is connected to optocoupler OP2 through resistors R11 and R27. The other end of optocoupler OP2 is connected to IGBT transistor M1 through resistor R2. The other end of optocoupler OP2 is connected to capacitor C4 and diode D1 through resistors R3, R4, R5, and R6. The other end of diode D1 is connected to capacitor C5 and diode D2. The other end of capacitor C4 is connected to the other end of diode D2 and capacitor C6. The other end of capacitor C5 is connected to diodes D3, D4, and C7. C6 is connected to diodes D3 and D4 and resistor R7.

[0058] This embodiment uses an IGBT transistor in a low-potential frequency converter module to control the switching of heat and potential on a single heating line. Since the IGBT transistor has a sufficiently high voltage rating, it isolates the potential circuit, thus preventing damage to the heating circuit components. This achieves the heating potential on the same heating line 202, thereby realizing compatibility between potential and heat.

[0059] Example 3:

[0060] This embodiment further discloses information based on Embodiment 2:

[0061] The fleece 209 of the treatment blanket is made of a skin-friendly, thin fabric, and the fleece 209 and the sponge 208 are connected by quilting or pressing.

[0062] By setting a heat-sealed nonwoven fabric 205 inside the treatment blanket 2 to fix the internal heating wire 204, the movement of the internal heating wire 204 caused by external friction of the treatment blanket can be avoided, which would cause the heating wire 204 to accumulate and generate local high temperature.

[0063] The upper casing 3 and lower casing 4 of the main unit are made of insulating material. This insulating material isolates the internal circuitry from the outside environment, preventing electrical leakage and potential hazards to devices located inside the casing.

[0064] The treatment pad is designed to be 340×210mm in size, and the treatment blanket 2 is designed to be 0.8×2m in size.

[0065] The small-sized treatment pad is mainly used for the treatment of local parts of the human body, while the treatment blanket, which is designed with reference to a home mattress, is mainly used for the treatment of the whole body. The only difference between the treatment pad and the treatment blanket is their size, and the difference in size will not affect the effectiveness of the invention.

[0066] The bottom layer of the treatment blanket 2 is a waterproof and non-slip backing fabric 201, with the entire outer surface covered with silicone epoxy resin.

[0067] The waterproof and non-slip backing 201 of the treatment blanket 2 is made of silicone resin, which allows the treatment blanket 2 to rub against the table surface, preventing it from moving due to external forces when in use.

[0068] The treatment blanket 2 has two layers of spray-bonded cotton 202 inside, which are composed of cotton with a high weight and a thicker thickness.

[0069] The treatment blanket is fitted with sprayed cotton 202 to support it, preventing it from collapsing or deforming due to excessive pressure from the therapist. This helps to keep the treatment blanket upright and ensures even force distribution.

[0070] The treatment blanket 2 has two layers of black carbon cotton 203 on both sides of the heating wire 204 inside, which is composed of flame-retardant carbon fiber cotton. By setting the black carbon cotton 203 on both sides of the heating wire 204 of the treatment blanket, the heating wire 204 is prevented from burning other material layers upwards and downwards when heated.

[0071] The treatment blanket 2 has a heat-sealed nonwoven fabric 205 inside, which is a threaded mesh made of flame-retardant material, to evenly fix and arrange the heating wires 204.

[0072] This embodiment uses an IGBT transistor in a low-potential frequency converter module to control the switching of heat and potential on a single heating line. Since the IGBT transistor has a sufficiently high voltage rating, it isolates the potential circuit, thus preventing damage to the heating circuit components. This achieves the heating potential on the same heating line 202, thereby realizing compatibility between potential and heat.

[0073] Example 4:

[0074] This embodiment provides a control method for a thermal low-potential therapy device, including:

[0075] Lay the treatment blanket 2 flat on the table, connect the power supply to the power socket 6, and turn on the power switch 7;

[0076] Controller 3 displays the current status of the therapeutic device and provides a visualization of the output temperature and potential data; it also receives user commands and control signals.

[0077] Then, according to the set time, the low-potential function and the heating function are controlled by the control motherboard 6 and the function output board 12.

[0078] This embodiment uses an IGBT transistor in a low-potential frequency converter module to control the switching of heat and potential on a single heating line. Since the IGBT transistor has a sufficiently high voltage rating, it isolates the potential circuit, thus preventing damage to the heating circuit components. This achieves the heating potential on the same heating line 202, thereby realizing compatibility between potential and heat.

[0079] Example 5:

[0080] This embodiment further discloses information based on Embodiment 3:

[0081] The controller 3 includes: a display module 304 that displays the current status of the therapeutic device and visualizes the output temperature and potential data; a user can receive commands and control signals via a button module 302; a timing control module 305 drives the temperature control module 308 and the low-potential frequency converter module 309 according to a user-set or default time setting; and a central control module 301 can only control either the temperature control module 308 or the low-potential frequency converter module 309 at a time. When the button module 302 receives a user command to activate only the heating function, the temperature acquisition module 307 acquires temperature data from the therapeutic blanket temperature sensor 210, and the temperature control module 308 controls the heating wire 204 of the therapeutic blanket to output heat. When the button module 302 receives a user command to activate only the low-potential function, the low-potential frequency converter module 309 controls the heating wire 204 of the therapeutic blanket to output a low-potential value. When the button module 302 receives a command from the user to simultaneously activate the heating and low-potential functions, the central control module 301 prioritizes the temperature control module 308, using a set time to control the output of the temperature control module 308 to the heating wire 204 of the treatment blanket, and then uses a set time to control the output of the low-potential frequency converter module 309 to the heating wire 204 of the treatment blanket. The output voltages of the heating and low-potential functions can be applied to the same set of output carriers. When the alarm module 303 detects an abnormal state of the treatment device, it will issue an alarm notification to the user through the display module 304.

[0082] The control motherboard 6 is used for human-computer interaction information processing, temperature output control, temperature detection and processing, low-potential waveform modulation, and low-potential output control.

[0083] The power socket 9 is used to connect to the mains power to provide power input for the whole machine. The power switch 10 controls the on and off of the input power of the therapeutic instrument. The switching power supply 11 converts the input mains power into DC power to control the main board 6 and the function output board 12 to provide power.

[0084] The function output board 12 is used to receive control signals from the control motherboard 6 to output functions to the treatment blanket 2, and to feed back the temperature data of the treatment blanket 2 to the control motherboard 6.

[0085] Low-potential frequency converter and voltage transformer module 309 Figure 5 As shown, M1 is an IGBT transistor, which includes:

[0086] The low-potential output of the circuit is generated by an iterative pulse wave that is boosted by a negative-potential boosting circuit at one end and a pulse wave that is periodically modulated by a controlled M1 transistor that is turned on and off at high speed at the other end.

[0087] The generation of the negative potential sine wave is achieved by controlling the optocoupler to conduct through the negative potential range control signal, which causes one of the resistors to perform voltage division to select the voltage before voltage multiplication. The voltage is then boosted by a voltage boosting circuit composed of diodes, and the positive terminal of the diode is taken to output the negative potential of the sine wave. The negative potential of the sine wave is then output to the low potential output terminal of the circuit through four current-limiting 1M resistors.

[0088] The generation of modulated pulse waves: A square wave signal with varying frequency and pulse width period is iterated through an IGBT transistor to a negative potential sine wave generated by a boost circuit. The signal is then output to the treatment blanket via the low potential output terminal of the circuit. The output frequency, effective voltage value, and waveform are controlled by the output control signal.

[0089] Warm output: The control signal controls the conduction of the transistor, which in turn controls the conduction of the optocoupler, so that the thyristor conducts. The common terminal of the heating wire is connected to the low potential output terminal of the circuit. At this time, the control signal output is always in a high level state, the optocoupler conducts, and a voltage difference is formed between the gate and the source, which is applied to the common terminal of the heating wire, and the treatment blanket 2 generates heat.

[0090] This embodiment uses an IGBT transistor in a low-potential frequency converter module to control the switching of heat and potential on a single heating line. Since the IGBT transistor has a sufficiently high voltage rating, it isolates the potential circuit, thus preventing damage to the heating circuit components. This achieves the heating potential on the same heating line 202, thereby realizing compatibility between potential and heat.

[0091] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A warm low-potential therapy device, characterized in that, include: Main unit (1), treatment blanket (2), and controller (3); The host (1) is equipped with a controller (3), which is connected to the treatment blanket (2); The controller (3) includes: a temperature acquisition module (307), a temperature control module (308), and a low-potential frequency converter module (309); wherein the temperature control module (308) is connected to the temperature acquisition module (307) and the low-potential frequency converter module (309) respectively. The temperature acquisition module (307) acquires the temperature data of the treatment blanket (2), the temperature control module (308) controls the heat output of the treatment blanket, and the low potential frequency converter module (309) controls the low potential output of the treatment blanket (2); the low potential frequency converter module (309) includes an IGBT transistor; The treatment blanket (2) includes: a waterproof and non-slip base fabric (201), a spray-bonded cotton (202) on top of the waterproof and non-slip base fabric (201), a black carbon cotton (203) on top of the spray-bonded cotton (202), a hot-rolled non-woven fabric (205) on top of the black carbon cotton (203), a heating wire (204) installed on the inner side of the hot-rolled non-woven fabric (205), the heating wire (204) being connected to a temperature protector (211), a temperature fuse (2120) and a treatment blanket connector (213) respectively, the treatment blanket connector (213) being connected to a temperature sensor (210), a second black carbon cotton (206) on top of the hot-rolled non-woven fabric (205), a second spray-bonded cotton (207) on top of the second black carbon cotton (206), a sponge (208) on top of the second spray-bonded cotton (207), and a fleece (209) on top of the sponge (208). The low-potential frequency converter module (309) includes: input voltage, varistor RV1, capacitors C2, C3, C4, C5, C6, C7, resistors R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R27, R28, R29, R30, optocouplers OP1, OP2, OP3, OP4, OP5, IGBT transistors M1, Q1, Q2, Q3, Q4, Q5, and common-mode inductor T3; The input voltage terminals are connected to varistor RV1, capacitor C2, and common-mode inductor T3, respectively. The two ends of common-mode inductor T3 are connected to capacitor C3. One end of capacitor C3 is connected to resistors R8, R9, and R10. The other end of resistor R8 is connected to optocoupler OP3, the other end of resistor R9 is connected to optocoupler OP4, and the other end of resistor R10 is connected to optocoupler OP5. Optocoupler OP3 is connected to transistor Q3 via resistor R28.

4. Transistor Q4 is connected via resistor R29; optocoupler OP5 is connected via resistor R30 to transistor Q5; one end of transistor Q3 is grounded, and the other end is connected to resistors R15 and R16 respectively; one end of transistor Q4 is grounded, and the other end is connected to resistors R17 and R18 respectively; one end of transistor Q5 is grounded, and the other end is connected to resistors R19 and R20 respectively; the other end of capacitor C3 is connected via resistor R7 to optocouplers OP3, OP4, and OP5 respectively; Resistor R7 is connected to capacitor C7. One end of resistor R14 is connected to the signal generator, and the other end is connected to resistor R13 and transistor Q2. The other end of transistor Q2 is connected to optocoupler OP1 through resistor R1. The other end of optocoupler OP1 is connected to resistor R3. The other end of transistor Q2 is connected to resistor R12 and transistor Q1. Transistor Q1 is connected to optocoupler OP2 through resistors R11 and R27. The other end of optocoupler OP2 is connected to IGBT transistor M1 through resistor R2. The other end of optocoupler OP2 is connected to capacitor C4 and diode D1 through resistors R3, R4, R5, and R6. The other end of diode D1 is connected to capacitor C5 and diode D2. The other end of capacitor C4 is connected to the other end of diode D2 and capacitor C6. The other end of capacitor C5 is connected to diodes D3, D4, and C7. C6 is connected to diodes D3 and D4 and resistor R7.

2. The warm low-potential therapeutic device according to claim 1, characterized in that, Also includes: The main unit (1) includes a lower shell (4) and an upper shell (5); a button film (7) is installed on the upper shell (5); the lower shell (4) is equipped with a treatment blanket connection cable (8), a power socket (9), a power switch (10), a switching power supply (11), and a function output board (12). The power socket (9) is connected to the power switch (10), the power switch (10) is connected to the function output board (12), the function output board (12) is connected to the switching power supply (11), the switching power supply (11) is connected to the control motherboard (6), the control motherboard (6) is connected to the function output board (12), and the function output board (12) is connected to the treatment blanket connection cable (8). The controller (3) also includes: a central control module (301), a button module (302), an alarm prompt module (303), a display module (304), a timing control module (305), and a storage module (306); wherein the low potential frequency conversion transformer module (309) includes an IGBT transistor.

3. The warm low-potential therapeutic device according to claim 2, characterized in that, The function output board includes: a heating control circuit, a heating temperature detection circuit, a negative potential control circuit, and a negative potential boosting circuit; wherein the heating control circuit is connected to the treatment blanket connection cable through the heating temperature detection circuit; and the negative potential control circuit is connected to the treatment blanket connection cable through the negative potential boosting circuit.

4. The warm low-potential therapeutic device according to claim 2, characterized in that, The controller includes: The central control module (301) has a button module (302) connected to its input terminal in a one-way electrical connection, an alarm prompt module (303) connected to its output terminal in a one-way electrical connection, a display module (304) connected to its output terminal in a one-way electrical connection, a timing control module (305) connected to its input terminal in a one-way electrical connection, a storage module (306) connected to its output terminal in a two-way electrical connection, a temperature acquisition module (307) connected to its input terminal in a one-way electrical connection, a temperature control module (308) connected to its output terminal in a one-way electrical connection, and a low-potential frequency converter module (309) connected to its output terminal in a one-way electrical connection.

5. A control method for a thermal low-potential therapy device, applied to the thermal low-potential therapy device according to claim 1, characterized in that, include: Lay the treatment blanket flat on the table, connect the power supply to the power socket, and turn on the power switch; The controller displays the current status of the therapeutic device and provides a visualization of the output temperature and potential data; Receive user commands and control signals; Then, according to the set time, the low-potential function and temperature are controlled in conjunction with the control motherboard and function output board; The controller includes: a display module that shows the current status of the therapeutic device and visualizes the output temperature and voltage data; a button module that receives user commands and control signals as needed; a timing control module that drives the temperature control module and the low-potential frequency converter module according to user-set or default time settings; and a central control module that can only control either the temperature control module or the low-potential frequency converter module at a time. When the button module receives a user command to activate only the heating function, the temperature acquisition module collects temperature data from the therapeutic blanket's temperature sensor, and the temperature control module controls the heating wire of the therapeutic blanket to output heating. When the button module receives a user command to activate only the low-potential function, the low-potential frequency converter module controls the heating wire of the therapeutic blanket to output low-potential. When the button module receives a user command to activate both the heating and low-potential functions simultaneously, the central control module prioritizes the temperature control module, controlling its output to the therapeutic blanket's heating wire at the set time, followed by the low-potential frequency converter module at the set time. The output voltages of the heating and low-potential functions can be applied to the same output carrier. When the alarm module detects an abnormality in the therapeutic device's status, it will alert the user through the display module.

6. The control method for the warm low-potential therapeutic device according to claim 5, characterized in that, include: The control motherboard is used for human-computer interaction information processing, temperature output control, temperature detection and processing, low-potential waveform modulation, and low-potential output control.

7. The control method for the warm low-potential therapeutic instrument according to claim 5, characterized in that, include: The function output board is used to receive control signals from the control motherboard to output functions for the treatment blanket, and to feed back the temperature data of the treatment blanket to the control motherboard.

8. The control method for the warm low-potential therapeutic instrument according to claim 5, characterized in that, The low-potential frequency converter module includes: The low-potential output of the circuit is generated by an iterative pulse wave that is boosted by a negative-potential boosting circuit at one end and a pulse wave that is periodically modulated by a controlled M1 transistor that is turned on and off at high speed at the other end. The generation of the negative potential sine wave is achieved by controlling the optocoupler to conduct through the negative potential range control signal, which causes one of the resistors to perform voltage division to select the voltage before voltage multiplication. The voltage is then boosted by a voltage boosting circuit composed of diodes, and the positive terminal of the diode is taken to output the negative potential of the sine wave. The negative potential of the sine wave is then output to the low potential output terminal of the circuit through four current-limiting 1M resistors. The generation of modulated pulse waves: The square wave signal with varying frequency and pulse width period is iterated by the IGBT transistor to the negative potential sine wave generated by the boost circuit, and then output to the treatment blanket through the low potential output terminal of the circuit. The negative potential output frequency, effective voltage value, and waveform output are controlled by the control signal. Warm output: The control signal controls the conduction of the transistor, which in turn controls the conduction of the optocoupler, making the thyristor conduct. The common terminal of the heating wire is connected to the low-potential output terminal of the circuit. At this time, the control signal output is always in a high-level state, the optocoupler conducts, and a voltage difference is formed between the gate and the source, which is applied to the common terminal of the heating wire, and the treatment blanket generates heat.

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