Heating protection band control circuit based on single-chip microcomputer and heating protection band

Abstract

The utility model provides a heating protection band control circuit based on a single-chip microcomputer and a heating protection band. The heating protection band control circuit comprises a temperature detection module, a micro-control module, a heating control module and a heating element. Wherein the temperature detection module is used for detecting the heating temperature of the heating control module and generating a first voltage signal; the micro-control module is used for receiving the first voltage signal and outputting a heating control signal according to the first voltage signal; the heating control module is used for receiving the heating control signal and controlling the heating state of a heating element according to the heating control signal; the heating element is used for generating heat. The temperature detection module for detecting the heating temperature in the heating control module in real time is arranged, heating is interrupted when the temperature rises to a critical value, the circuit temperature is prevented from being too high, and the safety coefficient of the heating protection band is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field especially is a kind of heating bandage control circuit and heating bandage based on single-chip microcomputer. BACKGROUND

[0002] In the existing heating bandage, mainly using heating sheet to realize local heating, its effective heating area is heating sheet area, can relieve pain symptoms caused by non-structural injury such as menstrual pain and lumbar muscle pain, expand local blood vessels by hot compress mode, promote blood circulation, relieve muscle tension, achieve the effect of relieving menstrual pain and back pain. However, the existing bandage lacks temperature overload protection, when heating function fails, the heating temperature of continuously powered heating bandage will continue to rise, which has the risk of burning skin.

[0003] Therefore, the prior art still needs to be improved and developed. UTILITY MODEL CONTENT

[0004] In view of the above deficiencies of the prior art, the purpose of the utility model is to provide a heating bandage control circuit and heating bandage based on single-chip microcomputer to solve the problem that the prior art lacks temperature overload protection, the bandage continues to heat when the heating system fails and the temperature cannot be adjusted by the temperature control system, resulting in the problem of over-temperature and over-heating safety hazard.

[0005] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0006] A heating bandage control circuit based on single-chip microcomputer, comprising: a temperature detection module, a micro-control module, a heating control module and a heating element; wherein,

[0007] The temperature detection module is connected with the power input end, for detecting the heating temperature of the heating control module, and generating a first voltage signal;

[0008] The power supply end of the micro-control module is connected with the power input end, and the temperature detection end of the micro-control module is connected with the temperature detection module, for receiving the first voltage signal and outputting a heating control signal according to the first voltage signal;

[0009] The first end of the heating control module is connected with the heating element, and the second end of the heating control module is connected with the heating control end of the micro-control module, for receiving the heating control signal and controlling the heating state of the heating element according to the heating control signal;

[0010] The heating element is connected with the power input end, for generating heat.

[0011] The utility model discloses further setting, temperature detection module includes: first resistance, second resistance, first electric capacity and thermistor, wherein,

[0012] One end of first resistance is connected with power input end, the other end of first resistance is connected one end of thermistor, one end of second resistance is connected common connection end of first resistance and thermistor, the other end of second resistance and one end of first electric capacity are connected temperature detection end of micro control module, the other end of thermistor and the other end of first electric capacity are grounded.

[0013] The utility model discloses further setting, heating control module includes, first switch tube, third resistance and fourth resistance, wherein,

[0014] The drain of first switch tube is connected with the other end of heating element, the grid of first switch tube is connected with one end of third resistance, the other end of third resistance is connected heating control end of micro control module, one end of fourth resistance is connected with the grid of first switch tube, the other end of fourth resistance, the source of first switch tube are grounded.

[0015] The utility model discloses further setting, still include constant voltage module, constant voltage module includes: linear voltage stabilizer, second electric capacity and third electric capacity, wherein,

[0016] The power supply end of linear voltage stabilizer is connected with power input end, the output of linear voltage stabilizer is connected with the power supply end of micro control module, the ground end of linear voltage stabilizer is grounded, one end of third electric capacity, one end of fourth electric capacity are connected with the output of linear voltage stabilizer, the other end of third electric capacity, the other end of fourth electric capacity are grounded.

[0017] The utility model discloses further setting, still include gear control module and gear display module, wherein,

[0018] The output of gear control module is connected with gear input end of micro control module, is used for heating gear adjustment, produces the gear control signal of control heating gear;

[0019] The input of gear display module is connected with gear signal end of micro control module, is used for showing current heating gear;

[0020] Micro control module is still used for receiving and output gear control signal to gear display module, and according to gear control signal, switches the voltage threshold to first preset voltage, second preset voltage or third preset voltage.

[0021] The further setting of the utility model discloses, the micro - control module includes micro - control chip, the power supply end of micro - control chip is connected with power input, the gear input of micro - control chip is connected with the output of gear control module, the temperature detection end of micro - control chip is connected with temperature detection module, the heating control end of micro - control chip, the heating control end of micro - control chip is connected with the heating control module, the first gear signal end, second gear signal end and third gear signal end of micro - control chip are connected with gear display module respectively, the first preset voltage value, second preset voltage value and third preset voltage value of micro - control chip are preset.

[0022] The further setting of the utility model discloses, the gear control module includes button switch, the first end of button switch is connected with the gear input of micro - control module, and the other end of button switch is grounded;

[0023] The gear display module includes: first light emitting diode, second light emitting diode, third light emitting diode, fourth light emitting diode, fifth light emitting diode, sixth light emitting diode, fifth resistor, sixth resistor and seventh resistor; Wherein,

[0024] The anode of first light emitting diode, the anode of second light emitting diode are connected with the first gear signal end of micro - control chip, the cathode of first light emitting diode, the cathode of second light emitting diode are connected with one end of fifth resistor, the anode of third light emitting diode, the anode of fourth light emitting diode are connected with the second gear signal end of micro - control chip, the cathode of third light emitting diode, the cathode of fourth light emitting diode are connected with one end of sixth resistor, the anode of fifth light emitting diode, the anode of sixth light emitting diode are connected with third gear signal end, the cathode of fifth light emitting diode, the cathode of sixth light emitting diode are connected with one end of seventh resistor, and the other end of fifth resistor, the other end of sixth resistor and the other end of seventh resistor are grounded.

[0025] The further setting of the utility model discloses, the heating element is graphene heating sheet.

[0026] The further setting of the utility model discloses, the thermistor is negative temperature coefficient thermistor.

[0027] Based on the same utility model concept, the utility model also provides a heating belt, which comprises the single-chip microcomputer-based heating belt control circuit and the belt main body according to any one of the preceding embodiments, the belt main body is double-sided nylon fabric, and the single-chip microcomputer-based heating belt control circuit is located between the double-sided cotton fabric.

[0028] The utility model provides a kind of heating bandage control circuit and heating bandage based on single-chip microcontroller, comprising: temperature detection module, micro-control module, heating control module, wherein, the temperature detection module one end is connected with power input terminal, the temperature detection module other end is connected with the temperature detection end of the micro-control module, for detecting the heating temperature of heating control module, and corresponding first voltage signal is exported to the micro-control module;The power supply end of the micro-control module is connected with power input terminal, for receiving the first voltage signal and comparing with corresponding voltage threshold of charging state, according to the comparison result of the first voltage signal and the voltage threshold output heating control signal;The first end of the heating control module is connected with power input terminal, the second end of the heating control module is connected with the heating control end of the micro-control module, for whether interrupt heating according to the heating control signal control.The utility model is heated by heating control module when heating bandage heating temperature is higher, prevent circuit temperature from being too high, improve the safety factor of heating bandage. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for ordinary person in the art, other drawings can be obtained according to the structure shown in these drawings without creating labor.

[0030] Figure 1 It is the structure block diagram of heating bandage control circuit based on single-chip microcontroller in one preferred embodiment of the utility model.

[0031] Figure 2 It is the structure block diagram of heating bandage control circuit based on single-chip microcontroller in another preferred embodiment of the utility model.

[0032] Figure 3 It is the partial circuit structure schematic diagram of heating bandage control circuit based on single-chip microcontroller in another preferred embodiment of the utility model.

[0033] Figure 4 It is the partial circuit structure schematic diagram of heating bandage control circuit based on single-chip microcontroller in another preferred embodiment of the utility model.

[0034] Mark in drawing: 100, temperature detection module;200, micro-control module;300, heating control module;400, heating element;500, gear control module;600, gear display module;700, constant voltage module;800, power input module. DETAILED DESCRIPTION

[0035] The utility model provides a heating band control circuit and heating band based on singlechip, for the purpose, technical scheme and effect of the utility model are clearer, more definite, the following refers to the drawing and takes example to the utility model further detailed explanation. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0036] In the embodiments and the patent application scope, unless the article has a special definition in the text, "a", "an", "said" and "the" can also include the plural form. If the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the description purpose, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature.

[0037] It should be further understood that the phrase "comprising" used in the specification of the utility model means that the features, integers, steps, operations, elements and / or components exist, but does not exclude the existence or addition of one or more other features, integers, steps, operations, elements, components and / or their groups. It should be understood that when we say that an element is "connected" or "coupled" to another element, it can be directly connected or coupled to other elements, or there can be intermediate elements. In addition, "connection" or "coupling" used here can include wireless connection or wireless coupling. The phrase "and / or" used here includes all or any unit and all combinations of one or more associated listed items.

[0038] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as that generally understood by those skilled in the art to which the utility model belongs. It should also be understood that terms such as those defined in a general dictionary should be understood as having a meaning consistent with that in the prior art, and unless specifically defined as here, they should not be interpreted in an idealized or overly formal sense.

[0039] In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.

[0040] Figure 1The utility model discloses a heating protection belt control circuit based on singlechip, it includes: temperature detection module 100, microcontrol module 200, heating control module 300 and heating element 400, wherein, temperature detection module 100 is connected with power input, is used to detect the heating temperature of heating control module 300, and generates first voltage signal, the power supply end of microcontrol module 200 is connected with power input, the temperature detection end of microcontrol module 200 is connected with temperature detection module 100, is used to receive first voltage signal and exports heating control signal according to first voltage signal, the first end of heating control module is connected with heating element 400, the second end of heating control module 300 is connected with the heating control end of microcontrol module 200, is used to receive heating control signal and controls the heating state of heating element 400 according to heating control signal, heating element 400 is connected with power input, is used to produce heat.

[0041] Specifically, power input provides 5V direct current and exports to temperature detection module 100, microcontrol module 200, heating control module 300 and heating element 400 respectively, heating control module 300 starts to work, and heating element 400 heats, so that the temperature around the module area starts to rise, at this time, with the temperature change, the value of first voltage signal in temperature detection module 100 changes accordingly, the change of first voltage signal is inputted in microcontrol module 200 through the temperature detection end of microcontrol module 200, and the internal preset voltage threshold of microcontrol chip U1.When first voltage signal reaches voltage threshold, it is considered that the temperature in heating element 400 reaches temperature critical value, and microcontrol module 200 exports corresponding heating control signal. Specifically, microcontrol module 200 exports heating interrupt signal when the temperature reaches temperature critical value, otherwise exports heating enable signal, when heating control signal is heating interrupt signal, heating control module 300 controls heating element 400 to stop heating, otherwise heating control module 300 controls heating element 400 to continue heating. By adding temperature detection module 100, whether the overtemperature of heating element 400 in the circuit is detected in real time, prevents heating protection belt from continuing to heat and scalds the user.

[0042] Further, please refer to Figure 1 and Figure 3The temperature detection module 100 comprises a first resistor R1, a second resistor R2, a first capacitor C1 and a thermistor R-NCT; wherein one end of the first resistor R1 is connected with a power input end, the other end of the first resistor R1 is connected with one end of the thermistor R-NCT, one end of the second resistor R2 is connected with the common connection end of the first resistor R1 and the thermistor R-NCT, the other end of the second resistor R2 and one end of the first capacitor C1 are connected with a temperature detection end of the micro control module 200, and the other end of the thermistor R-NCT and the other end of the first capacitor C1 are grounded. Specifically, current flows from the power input end, and is grounded through the first resistor R1 and the thermistor R-NCT in sequence, the thermistor R-NCT and the first resistor R1 constitute a voltage dividing circuit, and the first voltage signal obtained by the temperature detection end of the micro control module 200 through voltage division of the second resistor R2 is the voltage division value of the thermistor R-NCT in the voltage dividing circuit at the current temperature.

[0043] Further, the control circuit further comprises a gear control module 500 and a gear display module 600, an output end of the gear control module 500 is connected with a gear input end of the micro control module 200, for adjusting a heating gear and generating a gear control signal for controlling the heating gear; the gear control signal is received and a corresponding gear display signal is output to the gear display module 600, and the voltage threshold is switched to the first preset voltage, the second preset voltage or the third preset voltage according to the gear control signal; an input end of the gear display module 600 is connected with a gear signal end of the micro control module 200, for displaying the current heating gear.

[0044] The further setting of the utility model discloses, micro - control module 200 including micro - control chip U1, the power supply end of micro - control chip U1 is connected with power input, the gear input of micro - control chip U1 is connected with the output of gear control module 500, the temperature detection end of micro - control chip U1 is connected with temperature detection module 100, the heat control end of micro - control chip U1, the heat control end of micro - control chip U1 is connected with heat control module 300, the first gear signal end, second gear signal end and third gear signal end of micro - control chip U1 are connected with gear display module 600 respectively, micro - control chip U1 first preset voltage value, second preset voltage value and third preset voltage value are preset. The power input provides electric energy for the work of micro - control module 200, guarantees micro - control module 200 stable work. In the further implementation of part of the preferred embodiment of the utility model, the model of micro - control chip U1 is WS32F001, also can adopt other micro - control chip U1 with same function, the utility model does not make limitation to this.

[0045] The heat control module 300 includes a first switch tube Q1, a third resistor R3 and a fourth resistor R4. The drain electrode of the first switch tube Q1 is connected with the other end of the heating element 400. The gate electrode of the first switch tube Q1 is connected with one end of the third resistor R3. The other end of the third resistor R3 is connected with the heat control end of the micro-control module 200. One end of the fourth resistor R4 is connected with the gate electrode of the first switch tube Q1. The other end of the fourth resistor R4 and the source electrode of the first switch tube Q1 are grounded.

[0046] In the further implementation of part of the preferred embodiment of the utility model, the heating element 400 is a graphene heating sheet FR1. The graphene heating sheet FR1 preferably has a thickness of 0.335 nanometers. When heated, it can realize uniform planar heating. By using the graphene heating sheet FR1, the material characteristics of the graphene heating sheet FR1 itself can be utilized to ensure uniform heating, and the graphene heating sheet FR1 has superior conductivity, fast heating, precise temperature control, and high energy efficiency. Because the resistance of the graphene heating sheet FR1 is fixed, the input current of the heat control module 300 is fixed.

[0047] The gear control module 500 comprises a key switch S1, a first end of the key switch S1 is connected with a gear input end of the micro control module 200, and the other end of the key switch S1 is grounded; the gear display module 600 comprises a first light emitting diode LED1, a second light emitting diode LED2, a third light emitting diode LED3, a fourth light emitting diode LED4, a fifth light emitting diode LED5, a sixth light emitting diode LED6, a fifth resistor R5, a sixth resistor R6 and a seventh resistor R7; wherein, an anode of the first light emitting diode LED1 and an anode of the second light emitting diode LED2 are connected with a first gear signal end of the micro control chip U1, a cathode of the first light emitting diode LED1 and a cathode of the second light emitting diode LED2 are connected with one end of the fifth resistor R5, an anode of the third light emitting diode LED3 and an anode of the fourth light emitting diode LED4 are connected with a second gear signal end of the micro control chip U1, a cathode of the third light emitting diode LED3 and a cathode of the fourth light emitting diode LED4 are connected with one end of the sixth resistor R6, an anode of the fifth light emitting diode LED5 and an anode of the sixth light emitting diode LED6 are connected with a third gear signal end, a cathode of the fifth light emitting diode LED5 and a cathode of the sixth light emitting diode LED6 are connected with one end of the seventh resistor R7, the other end of the fifth resistor R5, the other end of the sixth resistor R6 and the other end of the seventh resistor R7 are grounded. When a user outputs a gear control signal through the gear control module 500, the micro control module 200 assigns the voltage threshold value as a first preset voltage, a second preset voltage or a third preset voltage according to the gear control signal, so that the voltage threshold value under different heating gears also changes accordingly, at the same time, the micro control chip U1 turns on the first gear signal end, the second gear signal end or the third gear signal end, and then lights up the corresponding branch in the gear display module 600, so as to display the current heating gear in the circuit to the user. For example, the first preset voltage, the second preset voltage and the third preset voltage can be preset as the threshold voltage detected by the temperature detection end of the micro control chip U1 when the heating module reaches the temperature threshold value under three gears with the temperature increasing in turn. Two light emitting diodes of each gear signal end can be square housings with a larger area, and the number and color of the light emitting diodes of each gear signal end in the gear display module 600 can be adjusted in specific implementation, which is not described in detail here.

[0048] In further implementation forms of the part of the preferred embodiments of the utility model, please refer to Figure 2 and Figure 3Further include constant voltage module 700, the constant voltage module 700 includes: linear voltage regulator U2, second capacitor C2 and third capacitor C3;Wherein, the power supply end of the linear voltage regulator U2 is connected with the power input end, the output end of the linear voltage regulator U2 is connected with the power supply end of the micro control module 200, the ground end of the linear voltage regulator U2 is grounded, one end of the third capacitor C3, one end of the fourth capacitor is connected with the output end of the linear voltage regulator U2, the other end of the third capacitor C3, the other end of the fourth capacitor is grounded.In the further implementation of the part of the preferred embodiment of the utility model, the linear voltage regulator U2 adopts ME6210 low static, low dropout linear voltage regulator U2, the linear voltage regulator U2 short-circuit protection function, output voltage 3.3V, of course in other embodiments also can adopt other micro control chip U1 with same function, the utility model does not make limitation to this.The second capacitor C2 and third capacitor C3 are used to reduce the ripple and interference noise in the output voltage of the power input end, provide stable DC output, reduce the interference of interference noise to signal detection.

[0049] In some preferred embodiments, the power input end is connected to the power input module 800, which can be any form of power input, and the power input module 800 in the utility model preferably includes a TYPE-C charging port, the input voltage of which is DC 5V, meeting the power supply requirements, and its port compatibility can meet the daily life use.It should be noted that the TYPE-C charging port is prior art, and the specific structure of the TYPE-C charging port will not be described here.

[0050] Further, the heating band control circuit based on a single-chip microcomputer in the utility model can also be used to realize temperature control function, by adjusting the current value flowing through the heating element 400, the temperature of the heating element 400 in normal working condition is adjusted, and the specific implementation is the prior art in the field, which will not be described here.

[0051] In the further implementation of the part of the preferred embodiment of the utility model, under different heating gears of the heating band control circuit based on a single-chip microcomputer, the gear display, temperature control function and voltage threshold are respectively set as follows: first gear: red light, 65℃±5℃, 510mV;Second gear: blue light, 55℃±5℃, 602mV;Third gear: green light, 50℃±5℃, 704mV;

[0052] Meanwhile, the micro control chip U1 corresponding to different heating gears of the first gear, the second gear and the third gear is respectively provided with the first preset voltage: 510mV, the second preset voltage: 620mV and the third preset voltage: 704mV; when the user presses the switch control module, the micro control chip U1 assigns the voltage threshold value to the preset voltage corresponding to the current gear in sequence, when the voltage threshold value is 510mV, the heating gear is the first gear; when the voltage threshold value is 602mV, the heating gear is the second gear; when the voltage threshold value is 704mV, the heating gear is the third gear; and the cycle is repeated.

[0053] Specifically, the micro control module 200 outputs a heating interruption signal when the temperature reaches the temperature threshold value, and otherwise outputs a heating conduction signal; when the heating control signal is the heating interruption signal, the heating control module 300 stops heating, otherwise the heating control module 300 continues to heat. The first switch tube Q1 plays a role in controlling the opening or closing of the input voltage in the heating control module 300, and the thermistor R-NCT and the first resistor R1 form a voltage dividing circuit; when the actual temperature of the heating sheet is higher than the corresponding temperature threshold value, the voltage corresponding to the thermistor R-NCT decreases, and when the voltage threshold value in the micro control chip U1 is reached, the micro control chip U1 controls the first switch tube Q1 to be turned off, so that the graphene heating sheet FR1 stops heating, and the graphene heating sheet FR1 positive electrode-graphene heating sheet FR1 negative electrode-ground loop is not conductive; when the actual temperature of the heating sheet is lower than the corresponding temperature threshold value, the voltage corresponding to the thermistor R-NCT increases, and when the voltage threshold value in the micro control chip U1 is reached, the micro control chip U1 controls the first switch tube Q1 to be turned on, so that the heating sheet positive electrode-heating sheet negative electrode-ground loop is conductive, and the graphene heating sheet FR1 continues to heat.

[0054] Here, the heating gear is taken as an example, the voltage threshold in the micro control chip U1 is the first preset voltage 510mV, when the power input module 800 starts to power on, the temperature of the heating element 400 is obviously lower than the critical value, the resistance value of the thermistor R-NCT is relatively high, the first voltage signal received by the micro control chip U1 is higher than the voltage threshold, the micro control chip U1 outputs the heating guide signal after comparison. The first switch tube Q1 receives the heating guide signal and turns on, when the source-drain electrode of the first switch tube Q1 is turned on, the heating element 400, that is, the graphene heating sheet FR1, heats up, so that the temperature around the module area starts to rise. At this time, the thermistor R-NCT exhibits the characteristics of the negative temperature coefficient thermistor R-NCT, and the resistance value of the thermistor R-NCT decreases rapidly, and the first voltage signal decreases accordingly. When the first voltage signal is lower than the voltage threshold 510mV, the temperature of the heating element 400 is considered to be 60℃, which reaches the temperature critical value, and the micro control module 200 outputs the heating interrupt signal. Further, by adding the temperature detection module 100, it is detected whether the heating element 400 in the circuit is overheated in real time, so as to prevent the heating band from continuing to heat and scald the user.

[0055] In some other preferable embodiments, the utility model also provides a heating band, which comprises the single-chip microcomputer-based heating band control circuit, the first band main body and the second band main body, the first band main body and the second band main body are oppositely arranged, the single-chip microcomputer-based heating band control circuit is located between the first band main body and the second band main body, preferably, the first band main body and the second band main body adopt nylon fabric, and the single-chip microcomputer-based heating band control circuit is arranged between the cotton fabric. The single-chip microcomputer-based heating band control circuit has been described in detail above, and will not be described in detail here.

[0056] The utility model provides a kind of heating band control circuit and heating band based on single-chip microcontroller, comprising: temperature detection module, micro-control module, heating control module and heating element;Wherein, the temperature detection module is connected with power input terminal, for detecting the heating temperature of heating control module, and generates first voltage signal;The power supply end of the micro-control module is connected with power input terminal, the temperature detection end of the micro-control module is connected with the temperature detection module, for receiving the first voltage signal and according to first voltage signal output heating control signal;The first end of the heating control module is connected with the heating element, the second end of the heating control module is connected with the heating control end of the micro-control module, for receiving the heating control signal and according to the heating control signal control heating element's heating state;The heating element is connected with power input terminal, for generating heat.The utility model controls heating by the heating control signal, interrupts heating when temperature rises to critical value, prevents over-temperature by simple circuit structure, and improves the safety factor in the use process of heating band.

[0057] It should be understood that the application of the utility model is not limited to the above examples, and those skilled in the art can improve or transform according to the above description, and all these improvements and transformations shall belong to the protection scope of the claims attached to the utility model.

Claims

1. A single-chip microcomputer-based heating band control circuit, characterized by comprising: The temperature detection module, the micro-control module, the heating control module and the heating element are connected with the power input end. The temperature detection module is connected with the power input end, and is configured to detect the heating temperature of the heating control module and generate a first voltage signal. The power supply end of the micro-control module is connected with the power input end, and the temperature detection end of the micro-control module is connected with the temperature detection module, configured to receive the first voltage signal and output a heating control signal according to the first voltage signal. The first end of the heating control module is connected with the heating element, and the second end of the heating control module is connected with the heating control end of the micro-control module, configured to receive the heating control signal and control the heating state of the heating element according to the heating control signal. The heating element is connected with the power input end, and is configured to generate heat. The temperature detection module comprises a first resistor, a second resistor, a first capacitor and a thermistor.

2. The single-chip microcomputer-based heating wrap control circuit of claim 1, wherein, One end of the first resistor is connected with the power input end, the other end of the first resistor is connected with one end of the thermistor, one end of the second resistor is connected with the common connection end of the first resistor and the thermistor, the other end of the second resistor and one end of the first capacitor are connected with the temperature detection end of the micro-control module, and the other end of the thermistor and the other end of the first capacitor are grounded. The heating control module comprises a first switch tube, a third resistor and a fourth resistor.

3. The single-chip microcomputer-based heating wrap control circuit of claim 1, wherein, The drain of the first switch tube is connected with the other end of the heating element, the gate of the first switch tube is connected with one end of the third resistor, the other end of the third resistor is connected with the heating control end of the micro-control module, one end of the fourth resistor is connected with the gate of the first switch tube, and the other end of the fourth resistor and the source of the first switch tube are grounded. The constant voltage module comprises a linear voltage stabilizer, a second capacitor and a third capacitor.

4. The single chip microcomputer-based heating wrap control circuit of claim 1, wherein, The power supply end of the linear voltage stabilizer is connected with the power input end, the output end of the linear voltage stabilizer is connected with the power supply end of the micro-control module, the ground end of the linear voltage stabilizer is grounded, one end of the third capacitor and one end of the fourth capacitor are connected with the output end of the linear voltage stabilizer, and the other end of the third capacitor and the other end of the fourth capacitor are grounded. The gear control module and the gear display module are further included.

5. The single-chip microcomputer-based heating wrap control circuit of claim 1, wherein, The output end of the gear control module is connected with the gear input end of the micro-control module, configured to adjust the heating gear and generate a gear control signal for controlling the heating gear; the micro-control module is further configured to receive the gear control signal, output a corresponding gear display signal to the gear display module, and switch the voltage threshold of the micro-control module to be the first preset voltage, the second preset voltage or the third preset voltage according to the gear control signal. The input end of the gear display module is connected with the gear signal end of the micro-control module, configured to display the current heating gear. ​ 6. The single-chip microcomputer-based heating wrap control circuit of claim 5, wherein, The micro-control module comprises a micro-control chip, a power supply end of the micro-control chip is connected with a power input end, a gear input end of the micro-control chip is connected with an output end of the gear control module, a temperature detection end of the micro-control chip is connected with the temperature detection module, a heating control end of the micro-control chip, the heating control end of the micro-control chip is connected with the heating control module, a first gear signal end, a second gear signal end and a third gear signal end of the micro-control chip are respectively connected with the gear display module, and the micro-control chip is provided with a first preset voltage value, a second preset voltage value and a third preset voltage value.

7. The single-chip microcomputer-based heating wrap control circuit of claim 6, wherein, The gear control module comprises a key switch, a first end of the key switch is connected with the gear input end of the micro-control module, and the other end of the key switch is grounded. The gear display module comprises a first light emitting diode, a second light emitting diode, a third light emitting diode, a fourth light emitting diode, a fifth light emitting diode, a sixth light emitting diode, a fifth resistor, a sixth resistor and a seventh resistor, wherein, an anode of the first light emitting diode and an anode of the second light emitting diode are connected with the first gear signal end of the micro-control chip, a cathode of the first light emitting diode and a cathode of the second light emitting diode are connected with one end of the fifth resistor, an anode of the third light emitting diode and an anode of the fourth light emitting diode are connected with the second gear signal end of the micro-control chip, a cathode of the third light emitting diode and a cathode of the fourth light emitting diode are connected with one end of the sixth resistor, an anode of the fifth light emitting diode and an anode of the sixth light emitting diode are connected with the third gear signal end, a cathode of the fifth light emitting diode and a cathode of the sixth light emitting diode are connected with one end of the seventh resistor, and the other end of the fifth resistor, the other end of the sixth resistor and the other end of the seventh resistor are grounded.

8. The single-chip microcomputer-based heating wrap control circuit of claim 3, wherein, The heating element is a graphene heating sheet.

9. The single-chip microcomputer-based heating wrap control circuit of claim 2, wherein, The thermistor is a negative temperature coefficient thermistor.

10. A heating wrap characterized by, The application further discloses a first belt body and a second belt body, wherein the first belt body and the second belt body are oppositely arranged, and the single-chip microcomputer-based heating belt control circuit is located between the first belt body and the second belt body.

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