High-frequency heating smoking set and temperature regulation and control method thereof

Abstract

The invention discloses a high-frequency heating smoking set and a temperature regulation and control method thereof.The high-frequency heating smoking set comprises an induction heating device, the induction heating device is provided with a heating mechanism used for heating an aerosol generating product, the induction heating device comprises a sensing body, an ADC sampling module and a control module, and the sensing body has the heating temperature matched with the heating mechanism; the sensing body is connected with the ADC sampling module; the ADC sampling module is used for collecting change information of physical property change of a sensing body, and the control module is used for adjusting input to the heating mechanism according to the change information collected by the ADC sampling module, so that the heating temperature of the heating mechanism is adjusted; wherein the material of the susceptor is a vanadium oxide-based material or a zirconium oxide-based material containing doping elements. According to the invention, by selecting the sensing body made of a specific material, when the sensing body is heated to a temperature close to an abrupt change temperature, dynamic temperature control is realized by utilizing physical property change information that the electrical resistivity of the sensing body is suddenly reduced, and the whole process is rapid and does not need to solve the problems of signal interference and focusing precision.

Description

Technical Field

[0001] This patent belongs to the technical field of heat-not-burn smoking devices, and particularly relates to a high-frequency heating smoking device and its temperature control method. Background Art

[0002] Traditional heating smoking devices measure temperature through contact temperature measurement (such as thermocouples) or calculate temperature based on electrical parameters (voltage, current). However, these methods have significant temperature feedback hysteresis. There is a time difference between the temperature data of the heating element and the temperature required for the actual aerosol formation matrix, resulting in the heating element continuing to heat up even after reaching the target temperature, and even experiencing temperature overshoot, which may produce a burnt smell and affect the taste.

[0003] Existing smoking devices mostly adopt a central heating method, which easily leads to uneven heating of the tobacco. For example, a large temperature difference between the center and the periphery of the tobacco will cause some areas not to react sufficiently (wasting tobacco), while other areas may produce a burnt smell due to overheating. In addition, the continuous heating mechanism (such as an entire heating sheet working continuously) still consumes electrical energy when the user pauses use, resulting in energy waste and a decrease in battery life. The heating performance of the smoking device varies significantly at different ambient temperatures (such as in extremely cold or hot environments). For example, the discharge capacity of a lithium battery at -20°C is only 31% of that at room temperature, affecting the startup speed and temperature control stability of the smoking device, and lacking a regulation strategy to dynamically adapt to environmental changes, resulting in a large fluctuation in the user experience.

[0004] In the prior art, the temperature measurement element is usually directly arranged in the heating area, such as a contact temperature measurement element (such as a thermocouple). In addition, there is also non-contact infrared temperature measurement, which can avoid direct contact, but needs to solve the problems of signal interference and focusing accuracy. Summary of the Invention

[0005] The purpose of this patent is to provide a high-frequency heating smoking device and its temperature control method to achieve the purposes of dynamic temperature control, improving the user experience, avoiding signal interference, and focusing accuracy.

[0006] To solve the above technical problems, this patent adopts the following technical solutions:

[0007] A high-frequency heating smoking device, the high-frequency heating smoking device includes an induction heating device, the induction heating device is provided with a heating mechanism for heating an aerosol generating article, the induction heating device includes a sensing body, an ADC sampling module and a control module, the sensing body has a heating temperature adapted to the heating mechanism; the sensing body is connected to the ADC sampling module; the ADC sampling module is used to collect the change information of the physical property change of the sensing body, and the control module is used to adjust the input to the heating mechanism according to the change information collected by the ADC sampling module, so as to adjust the heating temperature of the heating mechanism; wherein, the material of the sensing body is a vanadium oxide-based material or a zirconia-based material containing doping elements, and the doping elements include germanium, titanium, aluminum and / or chromium elements. When heating the aerosol generating article reaches near the mutation temperature of the sensing body, the sensing body can change from an insulating state to a metallic state, so that the sensing body generates a physical property change of a sudden drop in resistivity.

[0008] Further, the material of the sensing body is a vanadium oxide-based material containing doping elements, wherein the doping elements are aluminum and chromium elements.

[0009] Further, gradient doping is adopted for the doping elements, and the gradient doping includes the following methods:

[0010] V 1-x-y Al x Cr y O2

[0011] Among them, the doping ratio of X is 0.05-0.07, 0.07-0.09, 0.09-0.11, 0.11-0.12, 0.12-0.13, 0.13-0.14 or 0.14-0.15.

[0012] Further, the doping ratio of Y is 0.05-0.07, 0.07-0.09, 0.09-0.11, 0.11-0.13, 0.13-0.15, 0.15-0.17 or 0.17-0.20.

[0013] Further, the material of the sensing body is a zirconia-based material containing doping elements, wherein the doping element is titanium, and the zirconia-based material is a zirconia thin film composite material.

[0014] Further, the control module is connected to the heating mechanism through an inverter.

[0015] Further, the control module adjusts the electrical parameters input to the inverter in real time according to the change information, so as to adjust the heating temperature of the heating mechanism;

[0016] Further, the electrical parameters include voltage, current, power or the interval time of continuous electrical signals.

[0017] Further, the heating mechanism includes a heating cavity,

[0018] Further, the sensor is disposed at the bottom or side wall of the heating chamber.

[0019] Further, the heating chamber is configured to accommodate an aerosol-generating article and heat the aerosol-generating article.

[0020] Further, the heating mechanism includes an induction sheet.

[0021] Further, the sensor is disposed on the induction sheet, and the induction sheet is configured to inductively heat the aerosol-generating article under the influence of an alternating electromagnetic field generated by an induction source.

[0022] This patent further provides a temperature control method for a high-frequency heating smoking device according to any one of the above, including the following steps:

[0023] Step A: Start setting the heating temperature of the induction heating device according to a preset control program;

[0024] Step B: When the heating temperature of the sensor of the induction heating device reaches near the mutation temperature, the sensor can change from an insulating state to a metallic state, causing the resistivity of the sensor to drop sharply;

[0025] Step C: The ADC sampling module collects the change information of the sharp drop in the resistivity of the sensor and sends it to the control module;

[0026] Step D: The control module adjusts the input to the heating mechanism in real time based on the change information, so as to adjust the heating temperature of the heating mechanism to enter the dynamic temperature control mode.

[0027] Further, in step C, the change information collected by the ADC sampling module for the sharp drop in the resistivity of the sensor includes the following steps:

[0028] Step C-1: The ADC sampling module calculates the change information of the current resistivity of the sensor by detecting the voltage value across the sensor.

[0029] Further, in step D, the control module adjusts the input to the heating mechanism in real time based on the change information, including the following steps:

[0030] Step D-1: The control module adjusts the electrical parameters input to the inverter in real time according to the change information,

[0031] wherein the electrical parameters include voltage, current, power or the interval time of a continuous electrical signal.

[0032] Further, the aerosol-generating article includes a smoking section and a filter section, and the smoking section has an aerosol-forming substrate for generating an aerosol.

[0033] In this patent, the induction sheet refers to a material that can convert electromagnetic energy into heat. When located in a fluctuating electromagnetic field, the eddy current induced in the induction sheet causes the heating of the induction sheet. When the elongated induction sheet is positioned in thermal contact with the aerosol-forming substrate, the aerosol-forming substrate is heated by the induction sheet. Further, while the sensor is used for temperature measurement, it can also have the same function as the induction sheet to jointly achieve the heating of the aerosol-forming substrate.

[0034] Preferably, the aerosol generating article is designed to engage with an electrically operated aerosol generating device (i.e., a high-frequency heating smoking device) including an induction source. The induction source generates a fluctuating electromagnetic field to heat the induction sheet located within the fluctuating electromagnetic field. In use, the aerosol generating article is engaged with the aerosol generating device such that the induction sheet is located within the fluctuating electromagnetic field generated by the induction source.

[0035] Preferably, the aerosol generating device can generate a fluctuating electromagnetic field between about 1 MHz and 30 MHz, such as between 2 MHz and 10 MHz, such as between 5 MHz and 7 MHz, through the induction coil of the induction source.

[0036] Preferably, the aerosol generating device can generate a fluctuating electromagnetic field having a field strength (H field) between 1 kA / m and 5 kA / m, such as between 2 kA / m and 3 kA / m, such as about 2.5 kA / m.

[0037] Preferably, the induction coil material should be selected from materials with good conductivity such as metals, etc.; in addition, in this patent, the induction coil material should also have good elastic deformation ability, and metals such as spring steel, gold, and silver can be used.

[0038] Preferably, the movable coil bracket and the fixed coil bracket of the induction coil can be connected to the induction coil body by means of integral molding, welding, clamps, etc. The displacement of the movable coil bracket can be achieved by means of manual operation, motor drive, etc.

[0039] Preferably, the aerosol generating device is a portable or handheld aerosol generating device that can be comfortably held between the fingers of a single hand by the user. The shape of the aerosol generating device can be substantially cylindrical. The aerosol generating device can have a length between about 70 mm and about 120 mm.

[0040] Preferably, the control module can be a simple switch. Alternatively, the control module can be a circuit and can include one or more microprocessors or microcontrollers.

[0041] Preferably, the power source in the power module can be any suitable power source, such as a DC voltage source, such as a battery. In one embodiment, the power source is a lithium-ion battery. Alternatively, the power source can be a nickel metal hydride battery, a nickel cadmium battery, or a lithium-based battery, such as lithium cobalt, lithium iron phosphate, lithium titanate, or a lithium polymer battery.

[0042] The present invention further provides an aerosol generating system, comprising an aerosol generating device (i.e., a high-frequency heating smoking device) and one or more aerosol generating products, wherein the aerosol generating device is provided with a corresponding number of heating chambers to accommodate the aerosol generating products. Preferably, one or more induction sheets are provided in the aerosol generating products.

[0043] Preferably, one or more susceptors may be provided, and may further be provided in the induction sheet and / or the heating chamber.

[0044] This patent provides a high-frequency heating smoking device and its temperature control method, which mainly focuses on the technical bottlenecks in the temperature control of existing heat-not-burn smoking devices. By selecting a sensor of a specific material, when it is heated to near the mutation temperature, the physical property change information of the sensor's resistivity will drop sharply is used to achieve dynamic temperature control, which can further improve the user experience. In addition, the high-frequency heating smoking device of this patent can directly detect the voltage value information at both ends of the sensor, and then calculate the resistivity information, and adjust the temperature control according to the information. The whole process is fast and does not need to solve the problems of signal interference and focusing accuracy.

[0045] At the same time, this patent can avoid the temperature measurement error caused by the thermocouple directly contacting the aerosol-forming matrix due to the temperature rise caused by itself being heated. At the same time, due to the real-time adjustment of the heating input, a better smoking experience can be obtained compared with a single temperature curve. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The above content of this patent and the following specific implementation methods will be better understood when read in conjunction with the accompanying drawings. It should be noted that the accompanying drawings are only examples of the technical solutions claimed for protection.

[0047] Figure 1 This is a schematic diagram of the circuit design of the high-frequency heating smoking device in this patent;

[0048] Figure 2 This is the temperature control flow chart of the high-frequency heating smoking device in this patent;

[0049] Figure 3 A schematic diagram of a heated cigarette used in a high-frequency heating smoking device in this patent;

[0050] Figure 4 This is a schematic diagram of the high frequency heating smoking device in this patent;

[0051] Figure 5Schematic diagram of the heating chamber in the high-frequency heating smoking device of this patent;

[0052] Figure 6 Top view of the heating chamber of the high-frequency heating smoking device of this patent.

[0053] Among them, the reference numerals are explained as follows:

[0054] Smoking section: 10

[0055] Filter section: 20

[0056] Induction sheet: 30

[0057] High-frequency heating smoking device: 40

[0058] Heating chamber: 41

[0059] Power supply and control component: 42

[0060] Induction coil: 43

[0061] Receptor: 50 Detailed implementation manners

[0062] The detailed features and advantages of this patent are described in detail in the following detailed implementation manners. The content is sufficient for any person skilled in the art to understand the technical content of this patent and implement it accordingly. And according to the specification, claims and drawings disclosed in this specification, those skilled in the art can easily understand the relevant purposes and advantages of this patent.

[0063] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0064] Such as Figures 1 - 2As shown, this patent provides a high-frequency heating smoking device, which includes an induction heating device, which is provided with a heating mechanism for heating an aerosol generating product, and the induction heating device includes a sensor, an ADC sampling module and a control module, and the sensor has a heating temperature that matches the heating mechanism; the sensor is connected to the ADC sampling module; the ADC sampling module is used to collect change information of the change of the physical property of the sensor, and the control module is used to adjust the input to the heating mechanism according to the change information collected by the ADC sampling module, thereby adjusting the heating temperature of the heating mechanism; wherein the material of the sensor is a vanadium oxide (VO2)-based material or a zirconium oxide (ZrO2)-based material containing doping elements, and the doping elements include germanium (Ge), titanium (Ti), aluminum (Al) and / or chromium (Cr) elements, and when the aerosol generating product is heated to the vicinity of the sudden change temperature of the sensor, the sensor can change from an insulating state to a metallic state, so that the sensor produces a physical property change of a sudden drop in resistivity. wherein, the power module, control module, inverter, matching network and load inside the high-frequency heating smoking device are connected in sequence, and the load as the heating mechanism can control its heating temperature by the control module. The power module is used to provide power to the high-frequency heating smoking device. The control module adjusts the electrical parameters of the input inverter, and then the inverter matches the network according to the regulated electrical parameters, that is, matches the operating network parameters of the heating mechanism, and inputs the network parameters into the heating mechanism to heat the aerosol-generating product to adapt to a better smoking effect.

[0065] Working method of high-frequency heating smoking device: start the heating device, and start setting the heating temperature of the induction heating device according to the preset control program (single temperature curve mode). At this time, the high-frequency heating smoking device starts to operate to heat the aerosol generating product. When the heating temperature of the susceptor reaches the vicinity of the mutation temperature, the susceptor can change from the insulating state to the metallic state, so that the physical properties of the susceptor change, that is, the resistivity of the susceptor drops sharply. The ADC sampling module calculates the change information of the current resistivity of the susceptor by detecting the voltage value at both ends of the susceptor. In this way, the change information of the change of the physical property of the susceptor can be detected by the ADC sampling module, and the change information of the change of the physical property of the susceptor can be sent to the control module as a control signal. After receiving the change information as the control signal, the control module adjusts the heating electrical parameters after calculation, that is, by adjusting the electrical parameters of the input inverter in real time, the adjusted electrical parameters are used as the preset control program, and the heating temperature of the induction heating device is set according to the preset control program, so as to adjust the heating temperature of the heating mechanism to enter the dynamic temperature control mode to adapt to a better suction effect, and continue to adjust and control the dynamic temperature control mode before the end of the heating program.

[0066] The formula for the resistance of the sensor element is as follows:

[0067] R=ρL / S

[0068] Where ρ is the resistivity and R is the resistance of the sensor element.

[0069] A constant voltage is applied to both ends of the sensor, and the circuit will output the corresponding current value. The sampling circuit of the ADC sampling module is placed on the current transmission path to collect the current data regularly. According to Ohm's law U=IR, the resistance value of the component to be tested can be obtained at this time, and the resistivity of the sensor element can be obtained. When the sensor reaches the mutation temperature, the sensor can change from the insulating state to the metallic state, and its resistivity will drop sharply, so the measured current value will increase. When the current value of the sensor measured by the ADC sampling module suddenly changes, a signal can be sent to the control module, and the control module will adjust the heating input accordingly.

[0070] Specifically, the material of the receptor is a vanadium oxide (VO2)-based thin film composite material containing doping elements, which has the characteristics of a sudden change in resistivity when the temperature rises to a certain temperature. When the ambient temperature reaches its phase change temperature (i.e., mutation temperature), the resistivity of the receptor will suddenly change. The data collected by the ADC sampling module connected to the receptor can obtain information on the sudden change in resistivity of the receptor. When the control module receives the signal, it controls the temperature of the aerosol production product by changing the input of the induction heating device. Furthermore, after the characteristics of the receptor change, the temperature is controlled by changing the input of the induction heating device. The input adjustment of the induction heating device can be electrical parameters such as voltage, current or power that can change the heating efficiency of the induction heating device, thereby adapting to a better suction effect. More specifically, the doping elements are germanium, aluminum and chromium, and their phase change temperature is increased to the target value by doping concentration and compressive stress.

[0071] Specifically, the doping elements are doped in a gradient manner, and the gradient doping includes the following methods:

[0072] V 1-x-y Al x Cr y O2

[0073] Among them, the doping ratio of X is 0.05-0.07, 0.07-0.09, 0.09-0.11, 0.11-0.12, 0.12-0.13, 0.13-0.14 or 0.14-0.15; the doping ratio of Y is 0.05-0.07, 0.07-0.09, 0.09-0.11, 0.11-0.13, 0.13-0.15, 0.15-0.17 or 0.17-0.20. The gradient doping method adopted in this patent is to compress the film through the substrate stress to form a material with a high phase transition temperature, further accurately control the change information of the physical property change, so as to better control the heating temperature according to the change information.

[0074] As an example, in a vanadium oxide-based material, the doping ratio X of aluminum element Al can be selected as 0.11, and the doping ratio Y of chromium element Cr can be selected as 0.11. Therefore, the doping ratio of vanadium element V is 1 - X - Y = 1 - 0.11 - 0.11 = 0.78.

[0075] Specifically, the material of the receptor is a zirconia-based material containing a doping element, and the doping element is titanium.

[0076] Specifically, the zirconia-based material is a zirconia thin film composite material.

[0077] Specifically, the control module is connected to the heating mechanism through an inverter.

[0078] Specifically, the control module adjusts the electrical parameters input to the inverter in real time according to the change information, so as to adjust the heating temperature of the heating mechanism. The electrical parameters include voltage, current, power or the interval time of continuous electrical signals.

[0079] Specifically, as Figures 3 - 4 shown, the aerosol generating article includes a smoking section 10 and a filter section 20. The smoking section has an aerosol-forming substrate for generating aerosol. The heating mechanism includes an induction sheet 30. An induction source is provided on the high-frequency heating smoking device 40, and the aerosol generating article is inductively heated through the alternating electromagnetic field generated by the induction source. More specifically, the receptor 50 is arranged on the induction sheet 30. The induction sheet 30 is located in the smoking section 10 and is used for inductively heating the aerosol generating article under the influence of the alternating electromagnetic field generated by the induction source.

[0080] More specifically, the high-frequency heating smoking device 40 includes a housing, a power supply and a control component 42, a heating cavity 41 for receiving at least a part (such as the smoking section 10) of the aerosol generating article, and an induction coil 43 as an electromagnetic wave emitter (i.e., the induction source). When the aerosol generating article is inserted into the high-frequency heating smoking device 40, the power supply and the control component 42 start the heating mode. The electric energy of the power supply is provided to the induction coil 43 in an alternating current manner and provided to the induction sheet 30 and the receptor 50 in the form of electromagnetic waves. After receiving the energy, the induction sheet 30 and the receptor 50 can heat the aerosol-forming substrate.

[0081] Specifically, as Figures 5 - 6As shown, the heating mechanism includes a heating chamber 41 disposed on the high-frequency heating smoking device, and the sensor 50 can be disposed on the bottom or side wall of the heating chamber 41. The heating chamber 41 is used to accommodate the aerosol generating product and heat the aerosol generating product. More specifically, the heating chamber 41 can be provided with an induction sheet 30, and the aerosol generating product is inductively heated by the induction sheet 30. The sensor 50 is disposed on the induction sheet 30 to facilitate synchronization with the heating temperature of the heating chamber 41. In addition, the heating chamber 41 itself can also directly inductively heat the aerosol generating product under the influence of the alternating electromagnetic field generated by the induction source, thereby heating it in an external heating manner.

[0082] The high-frequency heating smoking device and heating method provided by this patent can quickly detect the sudden change in temperature by utilizing the change in the physical properties of the sensor 50 itself and cooperating with the detection of voltage in the circuit, thereby avoiding the temperature feedback hysteresis problem caused by the need to calculate the temperature of the existing temperature measuring element, and the method of measuring voltage is stable and does not affect the interference of the electromagnetic induction signal. Dynamic temperature adjustment according to the sudden change in temperature, on the one hand, reduces the influence of the external environment on the heating temperature, especially in an unconventional temperature environment, the heating temperature does not reach or exceed the optimal suction temperature under the influence of the ambient temperature. At this time, dynamic temperature adjustment can help users avoid external influences, and on the other hand, it is convenient to adapt to a better suction effect through the setting of dynamic temperature adjustment.

[0083] The terms and expressions used herein are for descriptive purposes only, and the patent shall not be limited to these terms and expressions. The use of these terms and expressions does not mean to exclude any equivalent features of the illustrations and descriptions (or parts thereof), and it should be recognized that various modifications that may exist should also be included in the scope of the claims. Other modifications, changes and substitutions may also exist. Accordingly, the claims should be deemed to cover all such equivalents.

[0084] Similarly, it should be pointed out that although this patent has been described with reference to the current specific embodiments, ordinary technicians in this technical field should realize that the above embodiments are only used to illustrate this patent, and various equivalent changes or substitutions can be made without departing from the spirit of this patent. Therefore, as long as the changes and modifications to the above embodiments are within the essential spirit of this patent, they will fall within the scope of the claims of this patent.

Claims

1. A high-frequency heating smoking device, the high-frequency heating smoking device includes an induction heating device, and the induction heating device is provided with a heating mechanism for heating an aerosol-generating article, characterized in that, The induction heating device includes a sensor, an ADC sampling module, and a control module. The sensor has a heating temperature adapted to the heating mechanism. The sensor is connected to the ADC sampling module; the ADC sampling module is used to collect the change information of the physical property change of the sensor. The control module is used to adjust the input to the heating mechanism according to the change information collected by the ADC sampling module, so as to adjust the heating temperature of the heating mechanism. Among them, the material of the sensor is a vanadium oxide-based material or a zirconia-based material containing doping elements. The doping elements include germanium, titanium, aluminum, and / or chromium elements. When the aerosol generating article is heated to near the mutation temperature of the sensor, the sensor can change from an insulating state to a metallic state, causing the physical property change of the sensor with a sharp drop in resistivity.

2. The high-frequency heating smoking device according to claim 1, wherein The material of the sensor is a vanadium oxide-based material containing doping elements, where the doping elements are aluminum and chromium elements.

3. The high-frequency heating smoking device according to claim 2, wherein, The doping elements are doped in a gradient manner, and the gradient doping includes the following methods: V 1-x-y Al x Cr y O2 Among them, the doping ratio of X is 0.05 - 0.07, 0.07 - 0.09, 0.09 - 0.11, 0.11 - 0.12, 0.12 - 0.13, 0.13 - 0.14, or 0.14 - 0.

15. The doping ratio of Y is 0.05 - 0.07, 0.07 - 0.09, 0.09 - 0.11, 0.11 - 0.13, 0.13 - 0.15, 0.15 - 0.17, or 0.17 - 0.

20.

4. The high-frequency heating smoking device according to claim 1, characterized in that, The material of the sensor is a zirconia-based material containing doping elements, where the doping element is titanium, and the zirconia-based material is a zirconia thin film composite material.

5. The high-frequency heating smoking device according to claim 1, wherein, The control module is connected to the heating mechanism through an inverter. The control module adjusts the electrical parameters input to the inverter in real time according to the change information, so as to adjust the heating temperature of the heating mechanism. Among them, the electrical parameters include voltage, current, power, or the interval time of continuous electrical signals.

6. The high-frequency heating smoking device according to claim 1, wherein, The heating mechanism includes a heating chamber. The sensor is arranged at the bottom or side wall of the heating chamber. The heating chamber is used to accommodate the aerosol generating article and heat the aerosol generating article.

7. The high-frequency heating smoking device according to claim 1, wherein The heating mechanism includes an induction sheet. The sensor is arranged on the induction sheet. The induction sheet is used to inductively heat the aerosol generating article under the influence of an alternating electromagnetic field generated by an induction source.

8. A temperature control method for a high-frequency heating smoking device according to any one of claims 1-7, characterized in that, Including the following steps: Step A: Start setting the heating temperature of the induction heating device according to a preset control program. Step B: When the heating temperature of the sensor of the induction heating device reaches near the mutation temperature, the sensor can change from an insulating state to a metallic state, causing the resistivity of the sensor to drop sharply. Step C: The ADC sampling module collects the change information of the sharp drop in the resistivity of the sensor and sends it to the control module. Step D: The control module adjusts the input to the heating mechanism in real time based on the change information, so as to adjust the heating temperature of the heating mechanism to enter the dynamic temperature control mode.

9. The temperature control method according to claim 8, characterized in that In the step C, the change information of the sudden drop in the resistivity of the receptor collected by the ADC sampling module includes the following steps: Step C-1: The ADC sampling module calculates the change information of the current resistivity of the receptor by detecting the voltage value across the receptor.

10. The temperature control method according to claim 9, wherein In the step D, the control module adjusts the input to the heating mechanism in real time based on the change information, including the following steps: Step D-1: The control module adjusts the electrical parameters input to the inverter in real time according to the change information. Among them, the electrical parameters include voltage, current, power, or the interval time of continuous electrical signals.

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