A self-feedback heat control method for heating a smoking article

Abstract

The application provides a self-feedback heat control method for heating a smoking set, and relates to the technical field of heating non-combustion, and comprises the following steps: S1, starting a heating controller; S2, acquiring a real-time temperature of a heating body; S3, acquiring an electromotive force of a thermocouple to obtain a real-time temperature of an inner side wall of a heating cavity; S4, judging whether a heated cigarette is inserted into the heating cavity, if yes, executing S5; otherwise, not executing an operation; S5, calculating a residual heat value of the heating cavity through the real-time temperatures of the heating body and the inner side wall of the heating cavity, and feeding back to the heating controller, and the heating controller corrects a heating output of the heating body. The application sets the thermocouple between the heating body and the inner side wall of the heating cavity, and the temperature of the inner side wall of the heating cavity can be acquired through the electromotive force generated by the thermocouple. When a cigarette is heated, the heating output of the heating body is corrected according to the real-time temperatures of the heating body and the inner side wall of the heating cavity, so that the temperature of smoke is suitable, and the user's smoking experience is improved.

Description

Technical Field

[0001] This invention relates to the field of heated non-combustible technology, and in particular, to a self-feedback heat control method for heated smoke appliances. Background Technology

[0002] Heated cigarettes are a new type of tobacco product that is heated to approximately 200-350°C without burning. External heating is required to release the flavor components in the aroma-producing materials and nicotine from the tobacco, generating smoke that can be inhaled. Because heated cigarettes do not undergo high-temperature combustion and pyrolysis, the harmful components in their mainstream smoke are significantly reduced, thus lowering environmental smoke pollution. Therefore, heated cigarettes have become one of the fastest-growing new tobacco products in recent years.

[0003] However, heated cigarettes need to reach a certain heating temperature to release smoke and aroma substances when smoked. Often, excessively high heating temperatures can lead to increased burnt and impurities in the smoke, while excessively low temperatures can result in incomplete heating of the cigarette, leading to insufficient release of smoke and aroma. Therefore, precise control of the heating temperature is necessary. For example, Chinese invention patent CN116965602A discloses a method, device, control circuit, and electronic cigarette device for controlling the temperature of a heating element. The heating element serves as the magnetic core in an electromagnetic coil. The method for controlling the temperature of the heating element includes: acquiring circuit information of the coupling circuit containing the electromagnetic coil, where the circuit information is the coupling frequency of the electromagnetic coil or the current value of the coupling circuit; and adjusting the duty cycle corresponding to the energizing duration of the electromagnetic coil in the coupling circuit and the total working time of the coupling circuit based on the circuit information to control the temperature of the heating element. By controlling the duty cycle corresponding to the energization time of the electromagnetic coil and the total working time of the coupling circuit based on the obtained circuit information, the temperature of the heating element can be controlled more accurately according to the actual circuit conditions. This not only achieves real-time control of the heating element temperature, but also reduces the heating element temperature while ensuring the normal operation of the smoking device, thus improving the user experience.

[0004] However, the above-mentioned method for controlling the heating temperature of smoking devices still has the following drawbacks: When the smoking device is continuously smoked, it will produce the effect of "heat residue". That is, after the smoking cycle ends, there is still heat residue inside the smoking device. In addition to the sensor, there is also heat residue on the inner wall of the heating chamber. The temperature control device is designed on the heating element and only provides feedback on the temperature of the heating element. It does not provide feedback on other internal temperatures of the smoking device. Under these circumstances, if the next smoking cycle is carried out continuously, the heating element will continue to heat up, which will cause the overall temperature of the smoking device to be too high, resulting in excessively high temperature of the smoking device and excessively hot outer surface temperature.

[0005] Therefore, in order to solve the above problems, it is necessary for us to design a reasonable and efficient self-feedback heat control method for heating smoke appliances. Summary of the Invention

[0006] The purpose of this invention is to provide a self-feedback heat control method for heating smoking devices. A thermocouple is installed between the heating element and the inner wall of the heating chamber. The thermocouple generates heat flux, i.e., electromotive force, under the temperature difference between its two ends. By obtaining this electromotive force, the temperature of the inner wall of the heating chamber can be obtained. When heating the cigarette, the heating output of the heating element is corrected according to the real-time temperature of the heating element and the real-time temperature of the inner wall of the heating chamber, so as to ensure that the smoke temperature is not too high and the smoking device is not too hot, thereby improving the user's smoking experience.

[0007] To achieve the above objectives, the present invention employs the following technical solution: A self-feedback heat control method for a heated smoking appliance, applicable to a self-feedback heat control structure for a heated smoking appliance, the structure including a heated smoking appliance with a heating cavity, a heating element disposed within the heating cavity, and a thermocouple disposed between the inner wall of the heating cavity and the heating element, the thermocouple being electrically connected to a voltmeter, the heating element being electrically connected to a heating controller, and the voltmeter being electrically connected to the heating controller, the method including the following steps: S1: Obtain the start signal from the heating controller; S2: Obtain the real-time temperature of the heating element; S3: Obtain the electromotive force on the thermocouple by using a voltmeter, calculate the temperature difference between the heating element and the inner wall of the heating cavity, and thus obtain the real-time temperature of the inner wall of the heating cavity. S4: Determine whether the heated cigarette has been inserted into the heating chamber. If yes, proceed to step S5; otherwise, do not proceed. S5: The residual heat value of the heating chamber is calculated by the real-time temperature of the heating element and the real-time temperature of the inner wall of the heating chamber, and fed back to the heating controller. The heating controller then corrects the heating output of the heating element.

[0008] As a preferred embodiment of the present invention, the heating appliance is provided with a cover for covering the opening of the heating chamber, the thermocouple is disposed on the cover, and one end of the thermocouple is connected to the inner side wall of the heating chamber, and the other end of the thermocouple is connected to the heating body; When performing step S4, determine whether the cap is open and the heated cigarette is inserted into the heating chamber. If so, proceed to step S5; otherwise, do not perform the operation.

[0009] In a preferred embodiment of the present invention, the voltmeter is disposed on the cover, and a signal transmitter is disposed on the cover, wherein the voltmeter is electrically connected to the heating controller through the signal transmitter; When performing step S3, the signal transmitter sends the acquired voltmeter reading to the heating controller, which then obtains the electromotive force on the thermocouple and calculates the temperature difference between the heating element and the inner wall of the heating cavity, thereby obtaining the real-time temperature of the inner wall of the heating cavity.

[0010] As a preferred embodiment of the present invention, the heating fume is provided with a pre-start button, and the pre-start button is electrically connected to the voltmeter; When performing step S1, the heating controller start signal is obtained, and after receiving the message that the pre-start button is pressed, the electrical connection between the voltmeter and the thermocouple is established.

[0011] As a preferred embodiment of the present invention, the thermocouple is a flexible component; and contact sensing elements are provided at both ends of the thermocouple. Before executing step S1, when one end of the thermocouple is connected to the inner wall of the heating chamber and the other end of the thermocouple is connected to the heating body, the contact sensing element at the end of the thermocouple sends a normal contact signal to the heating controller.

[0012] As a preferred embodiment of the present invention, the number of thermocouples is at least one, and the plurality of thermocouples are evenly distributed around the heating body; When step S3 is executed, the electromotive force on different thermocouples is obtained, thereby obtaining the real-time temperature of the inner wall of the heating cavity in different directions of the heating body.

[0013] As a preferred embodiment of the present invention, when performing step S5, the residual heat value of the heating cavity is calculated by the real-time temperature of the heating body and the real-time temperature of the inner wall of the heating cavity in different directions of the heating body, and fed back to the heating controller, which then corrects the heating output of the heating body.

[0014] As a preferred embodiment of the present invention, after obtaining the real-time temperature of the inner wall of the heating cavity in different directions of the heating body, the method further includes: The system determines whether the real-time temperature difference between the inner walls of the heating chamber in different directions of the heating element exceeds a predetermined threshold. If so, an alarm is issued; otherwise, no operation is performed.

[0015] As a preferred embodiment of the present invention, a temperature probe is provided in the heating body, and the temperature probe is electrically connected to the heating controller. When step S2 is executed, the temperature probe acquires the real-time temperature of the heating element and sends it to the heating controller.

[0016] The beneficial effects of the self-feedback heat control method for heating smoking devices of the present invention are as follows: a thermocouple is set between the heating element and the inner wall of the heating chamber. The thermocouple generates heat flux, i.e., electromotive force, under the temperature difference between its two ends. By obtaining this electromotive force, the temperature of the inner wall of the heating chamber can be obtained. When heating the cigarette, the heating output of the heating element is corrected according to the real-time temperature of the heating element and the real-time temperature of the inner wall of the heating chamber, so as to ensure that the smoke temperature is not too high and the smoking device is not too hot, thereby improving the user's smoking experience. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the preparation process of an embodiment of the self-feedback heat control method for heating smoke appliances according to the present invention. Detailed Implementation

[0019] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0020] In the following description, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The following description provides multiple embodiments of this application, which can be substituted or combined with each other. Therefore, this application can also be considered to include all possible combinations of the same and / or different embodiments described. Thus, if one embodiment includes features A, B, and C, and another embodiment includes features B and D, then this application should also be considered to include embodiments containing one or more other possible combinations of A, B, C, and D, even if such embodiments are not explicitly described in the following text.

[0021] The following description provides examples and does not limit the scope, applicability, or examples set forth in the claims. Changes may be made to the function and arrangement of the described elements without departing from the scope of this application. Various processes or components may be appropriately omitted, substituted, or added to the examples. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Furthermore, features described with respect to some examples may be combined into other examples.

[0022] Example 1: Please refer to Figure 1This is merely one embodiment of the present invention. The present invention provides a self-feedback heat control method for a heated smoking appliance, applicable to a self-feedback heat control structure for heated smoking appliances. The structure includes a heated smoking appliance with a heating cavity, a heating element disposed within the heating cavity, and a thermocouple disposed between the inner wall of the heating cavity and the heating element. The thermocouple is electrically connected to a voltmeter, and the heating element is electrically connected to a heating controller. The voltmeter is electrically connected to the heating controller. In the self-feedback heat control structure of a heated smoking device of the present invention, the heated smoking device has a heating chamber, a heating element is provided in the heating chamber, the heating element is electrically connected to a heating controller, a heated cigarette is inserted into the heating chamber, and after the heating element is inserted into the heated cigarette, the heating controller controls the current output, so that the heating element heats up the heated cigarette, so that the heated cigarette reaches a predetermined temperature, stimulating the release of aerogel in the heated cigarette to produce smoke and aroma for the smoker to smoke.

[0023] Based on this, in this invention, a thermocouple is provided between the inner wall of the heating cavity and the heating element. The thermocouple is electrically connected to a voltmeter. It should be noted that the thermocouple is in the form of a thin wire, with one end of the thermocouple contacting the inner wall of the heating cavity and the other end contacting the outer wall of the heating element.

[0024] If there is a temperature difference between the inner wall of the heating chamber and the heating element, then there will be a temperature difference between the two ends of the thermocouple. There will be heat flux between the two ends of the thermocouple, that is, a potential difference will be generated. This potential difference is output to the voltmeter and measured by the voltmeter. By measuring the voltmeter and the thermocouple's thermal flux performance, the temperature difference between the two ends of the thermocouple can be obtained, so that the voltmeter and the thermocouple form a heat flux sensor (heat flux sensor, also known as heat flow sensor or heat flow meter).

[0025] It should be explained that a heat flux transduser (HFT) is a device that measures the heat flux density passing through a plate having a defined thermal resistance by generating a temperature difference. Its output potential (V) is proportional to the heat flux density (q) passing through the sensor. The heat flux transduser consists of a sensing element, a display element, and connecting wires. Therefore, in this invention, the thermocouple is the sensing element of the heat flux transduser, and the voltmeter is the display element.

[0026] Of course, the voltmeter is electrically connected to the heating controller, and the potential difference value measured by the voltmeter at the thermocouple is sent to the heating controller.

[0027] After obtaining the potential difference on the thermocouple, the temperature difference between the inner wall of the heating cavity and the heating element can be obtained. Given the temperature of the heating element, the temperature value of the inner wall of the heating cavity can be calculated.

[0028] The method includes the following steps: S1: Obtain the start signal from the heating controller; First, ensure that the thermocouples can be connected to the inner wall of the heating chamber and the heating element at both ends to ensure that the thermocouples can measure the temperature difference. Also, ensure that the heating controller is electrically connected to each component and that the power supply and output functions of the heating controller are normal before the heating controller start signal can be obtained. To be precise, step S1 is to ensure that the heating smoke appliance of the present invention is working properly.

[0029] Of course, the thermocouple is a flexible component; both ends of the thermocouple are provided with contact sensing elements; Before executing step S1, when one end of the thermocouple is connected to the inner wall of the heating chamber and the other end of the thermocouple is connected to the heating body, the contact sensing element at the end of the thermocouple sends a normal contact signal to the heating controller.

[0030] S2: The heating controller obtains the real-time temperature of the heating element; A temperature probe is provided at the center of the inner side of the heating body, and the temperature probe is electrically connected to the heating controller. When step S2 is executed, the temperature probe acquires the real-time temperature of the heating element and sends it to the heating controller, thus informing the heating controller of the real-time temperature of the heating element. S3: Obtain the electromotive force on the thermocouple by using a voltmeter, calculate the temperature difference between the heating element and the inner wall of the heating cavity, and thus obtain the real-time temperature of the inner wall of the heating cavity. Of course, before performing step S3, it is necessary to obtain parameters such as the material and thickness of the thermocouple to obtain the thermocouple's thermal conductivity. The temperature difference between the two ends of the thermocouple can be obtained by measuring the voltmeter (electromotive force difference) and the thermocouple's thermal conductivity (known), that is, the temperature difference between the inner wall of the heating cavity and the heating element.

[0031] Given that the real-time temperature of the heating element has been measured in step S2, the real-time temperature of the inner wall of the heating chamber can be obtained by the temperature difference between the inner wall of the heating chamber and the heating element.

[0032] S4: Determine whether the heated cigarette has been inserted into the heating chamber. If yes, proceed to step S5; otherwise, do not proceed. At this point, if a heated cigarette is inserted into the heating chamber, step S5 can be executed to heat the heated cigarette. If no heated cigarette is inserted into the heating chamber, then no heating is performed, and the process returns to step S2. At regular intervals, the real-time temperature of the heating element and the real-time temperature of the inner wall of the heating chamber are obtained.

[0033] To ensure that the latest real-time temperature of the heating element and the real-time temperature of the inner wall of the heating chamber can be obtained when the heated cigarette is inserted into the heating chamber, so that precise heating control can be performed based on the latest heat in the heating chamber when step S5 is executed.

[0034] S5: The residual heat value of the heating chamber is calculated by the real-time temperature of the heating element and the real-time temperature of the inner wall of the heating chamber, and fed back to the heating controller. The heating controller then corrects the heating output of the heating element.

[0035] With the real-time temperature of the heating element and the real-time temperature of the inner wall of the heating chamber already obtained, the heating controller can adjust the heating output of the heating element according to the target temperature required for smoking the heated cigarette.

[0036] Generally, at the initial stage of heating device manufacturing, multiple tests are required. When the real-time temperature of the heating body is x and the real-time temperature of the inner wall of the heating chamber is y, the cigarette is heated to temperature z. The heating controller outputs a heating value W to the heating body. The effects of x, y, and z on W are tested, and a residual heat-output correction table is generated. When the cigarette is being heated, the heating controller obtains the real-time temperature of the heating body, the real-time temperature of the inner wall of the heating chamber, and the target heating temperature of the cigarette. Based on the residual heat-output correction table, the heating output value of the heating body can be obtained.

[0037] In summary, compared with the prior art which only corrects the heating output based on the temperature of the heating element, the present invention also obtains the temperature value of the inner sidewall of the heating cavity, which can better obtain the heat distribution in the entire heating cavity and realize multi-point temperature control. The heating output of the heating element is corrected by feeding back the heating element temperature and the inner sidewall temperature of the heating cavity to the heating controller.

[0038] Example 2: See also Figure 1 This is only one embodiment of the present invention. Based on Embodiment 1, the self-feedback heat control method for heating smoke appliances of the present invention further includes the following control design: In this invention, if the thermocouple is fixedly installed inside the heating chamber, the heating fume is provided with a pre-start button, and the pre-start button is electrically connected to the voltmeter; This ensures that the thermocouple and heating controller are working properly when performing step S1, and establishes an electrical connection between the voltmeter and the thermocouple after receiving a message that the pre-start button has been pressed.

[0039] Generally speaking, just before the heated cigarette is inserted into the heating chamber, that is, when the smoker wants to smoke the heated cigarette, the pre-start button is pressed actively to establish an electrical connection between the voltmeter and the thermocouple inside the heated cigarette device. At this time, the voltmeter can obtain the potential difference of the thermocouple and measure the temperature of the inner wall of the heating chamber.

[0040] Correspondingly, after the heated cigarette is inserted into the heating chamber, the heating element will start heating. The temperature of the heating element is very high, but the temperature of the inner wall of the heating chamber rises slowly. In order to prevent the voltmeter from being damaged due to the large temperature difference between the inner wall of the heating chamber and the heating element, the pre-start button needs to automatically pop open after the heated cigarette is inserted into the heating chamber and the real-time temperature of the heating element and the inner wall of the heating chamber have been measured, thus disconnecting the electrical connection between the voltmeter and the thermocouple.

[0041] In this invention, if the thermocouple is not fixedly installed in the heating cavity, the thermocouple and the heating cavity can be installed separately. The heating appliance is provided with a cover for covering the opening of the heating cavity. The thermocouple is installed on the cover, and one end of the thermocouple is connected to the inner side wall of the heating cavity, and the other end of the thermocouple is connected to the heating body. In fact, the thermocouple is installed on the side of the cover near the bottom of the heating chamber via an extension post; In other words, when the cover is placed at the opening of the heating chamber, the extension post on the cover is inserted into the heating chamber, so that the two ends of the thermocouple are in contact with the inner wall of the heating chamber and the heating element respectively. The potential difference of the thermocouple can be obtained in real time, and the temperature difference between the inner wall of the heating chamber and the heating element can be obtained. When suction is required, the cover needs to be removed. At this time, the thermocouple is detached with the cover. There is no need to worry about the high temperature of the heating element damaging the thermocouple and voltmeter.

[0042] When performing step S4, determine whether the cap is open and the heated cigarette is inserted into the heating chamber. If so, proceed to step S5; otherwise, do not perform the operation.

[0043] In this invention, the voltmeter is disposed on the cover, and a signal transmitter is disposed on the cover. The voltmeter is electrically connected to the heating controller through the signal transmitter. When performing step S3, the signal transmitter sends the acquired voltmeter reading to the heating controller, which then obtains the electromotive force on the thermocouple and calculates the temperature difference between the heating element and the inner wall of the heating cavity, thereby obtaining the real-time temperature of the inner wall of the heating cavity.

[0044] In one embodiment of the present invention, the number of thermocouples is at least one, and the plurality of thermocouples are evenly distributed around the heating body; When step S3 is executed, the electromotive force on different thermocouples is obtained, thereby obtaining the real-time temperature of the inner wall of the heating cavity in different directions of the heating body; Furthermore, after obtaining the real-time temperature of the inner wall of the heating cavity in different directions of the heating element, it also includes: The system determines whether the real-time temperature difference between the inner walls of the heating chamber in different directions exceeds a predetermined threshold. If so, an alarm is triggered; otherwise, no operation is performed. In other words, the temperature difference between the hottest and coldest areas on the inner walls of the heating chamber in different directions must not exceed a predetermined threshold. If it does, it indicates that the heat dissipation within the heating chamber is extremely uneven, or there may be abnormal heat sources interfering, making heating difficult to control.

[0045] When executing step S5, the residual heat value of the heating cavity is calculated by using the real-time temperature of the heating body and the real-time temperature of the inner wall of the heating cavity in different directions of the heating body, and then fed back to the heating controller. The heating controller corrects the heating output of the heating body.

[0046] This invention discloses a self-feedback heat control method for heating smoking devices. A thermocouple is installed between the heating element and the inner wall of the heating chamber. The thermocouple generates heat flux, i.e., electromotive force, under the temperature difference between its two ends. By obtaining this electromotive force, the temperature of the inner wall of the heating chamber can be obtained. When heating the cigarette, the heating output of the heating element is corrected based on the real-time temperature of the heating element and the real-time temperature of the inner wall of the heating chamber, ensuring that the smoke temperature is not too high and the smoking device is not too hot, thereby improving the user's smoking experience.

[0047] The foregoing description is merely an exemplary embodiment of this disclosure and should not be construed as limiting the scope of this disclosure. Any equivalent changes and modifications made in accordance with the teachings of this disclosure shall still fall within the scope of this disclosure. Those skilled in the art will readily conceive of embodiments of this disclosure upon considering the specification and practicing the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not described herein. The specification and embodiments are to be considered exemplary only, and the scope and spirit of this disclosure are defined by the claims.

Claims

1. A self-feedback heat control method for a heated smoking appliance, applicable to a self-feedback heat control structure for a heated smoking appliance, the structure comprising a heated smoking appliance having a heating chamber, a heating element disposed within the heating chamber, and a thermocouple disposed between the inner wall of the heating chamber and the heating element, wherein the thermocouple is electrically connected to a voltmeter, the heating element is electrically connected to a heating controller, and the voltmeter is electrically connected to the heating controller; Its features are, The method includes the following steps: S1: Obtain the start signal from the heating controller; S2: Obtain the real-time temperature of the heating element; S3: Obtain the electromotive force on the thermocouple by using a voltmeter, calculate the temperature difference between the heating element and the inner wall of the heating cavity, and thus obtain the real-time temperature of the inner wall of the heating cavity. S4: Determine whether the heated cigarette has been inserted into the heating chamber. If yes, proceed to step S5; otherwise, do not proceed. S5: The residual heat value of the heating chamber is calculated by the real-time temperature of the heating element and the real-time temperature of the inner wall of the heating chamber, and fed back to the heating controller. The heating controller then corrects the heating output of the heating element. The thermocouple is a flexible component; both ends of the thermocouple are provided with contact sensing elements. One end of the thermocouple is connected to the inner wall of the heating chamber, and the other end of the thermocouple is connected to the heating element. The contact sensing element at the end of the thermocouple sends a normal contact signal to the heating controller. A temperature probe is installed inside the heating body, and the temperature probe is electrically connected to the heating controller. The heating appliance is provided with a cover for covering the opening of the heating chamber, and the thermocouple is disposed on the cover; The voltmeter is mounted on the cover, and a signal transmitter is mounted on the cover. The voltmeter is electrically connected to the heating controller through the signal transmitter. When step S2 is executed, the temperature probe acquires the real-time temperature of the heating element and sends it to the heating controller; When performing step S3, the signal transmitter sends the acquired voltmeter reading to the heating controller, which then obtains the electromotive force on the thermocouple and calculates the temperature difference between the heating element and the inner wall of the heating cavity, thereby obtaining the real-time temperature of the inner wall of the heating cavity. When performing step S4, determine whether the cap is open and the heated cigarette is inserted into the heating chamber. If so, proceed to step S5; otherwise, do not perform the operation.

2. The self-feedback heat control method for heating smoke appliances according to claim 1, characterized in that: The heating appliance is equipped with a pre-start button, which is electrically connected to the voltmeter. When performing step S1, the heating controller start signal is obtained, and after receiving the message that the pre-start button is pressed, the electrical connection between the voltmeter and the thermocouple is established.

3. The self-feedback heat control method for heating smoke appliances according to claim 1, characterized in that: The number of thermocouples is at least one, and the multiple thermocouples are evenly distributed around the heating element; When step S3 is executed, the electromotive force on different thermocouples is obtained, thereby obtaining the real-time temperature of the inner wall of the heating cavity in different directions of the heating body.

4. The self-feedback heat control method for heating smoke appliances according to claim 3, characterized in that: After obtaining the real-time temperature of the inner wall of the heating cavity in different directions of the heating element, the following steps are also included: The system determines whether the real-time temperature difference between the inner walls of the heating chamber in different directions of the heating element exceeds a predetermined threshold. If so, an alarm is issued; otherwise, no operation is performed.

5. A self-feedback heat control method for heating smoke appliances according to claim 3, characterized in that: When executing step S5, the residual heat value of the heating cavity is calculated by using the real-time temperature of the heating body and the real-time temperature of the inner wall of the heating cavity in different directions of the heating body, and then fed back to the heating controller. The heating controller corrects the heating output of the heating body.

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