A method and system for controlling the self-regulating heating temperature of a heated smoking device

Abstract

The present application relates to the field of heated cigarettes, specifically to a self-regulating heating temperature control method and system for heated smoking devices, the heating temperature control method including temperature data acquisition, error prediction and power adjustment; the method can monitor and acquire the temperature data of the heating air duct in the smoking device in real time, and provide feedback to obtain the temperature error prediction of the heating air duct; by predicting the temperature error of the heating air duct in the smoking device and providing feedback to adjust the heating power of the electromagnetic coil, the heating efficiency and temperature uniformity of the smoking device can be effectively improved, thereby enhancing the heating effect of the heated cigarettes.

Description

Technical Field

[0001] The present invention relates to the technical field of heated cigarettes, and in particular to a method and system for controlling the self-regulating heating temperature of a heated smoking device. Background Art

[0002] Heated cigarettes are heat-not-burn tobacco products often used with heated smoking devices. Using heated smoking devices to heat heated cigarettes directly heats the tobacco without burning it and producing smoke. Key performance characteristics of heated smoking devices lie in heating efficiency and temperature control. Existing heated smoking devices commonly suffer from low heating efficiency and uneven heating temperatures. The present invention aims to address these issues through a control method, improving heating efficiency and temperature uniformity. Summary of the Invention

[0003] The present invention aims to provide a self-regulating heating temperature control method and system for a heated smoking device, so as to solve the problems existing in the background art and improve the heating efficiency and temperature uniformity of the smoking device.

[0004] The present invention adopts the following technical solutions:

[0005] A method for controlling the self-regulating heating temperature of a heated smoking device comprises the following steps:

[0006] Temperature data acquisition: obtain the temperature t3 of the air temperature measuring thermocouple at the air outlet end of the heating duct in the smoking device, the temperature t2 of the air temperature measuring thermocouple at the air inlet end of the heating duct, and the temperature t1 of the electromagnetic heating plate temperature measuring thermocouple in the middle section of the heating duct;

[0007] Error prediction: Temperature error prediction is performed based on the deviation formula, which is: ;

[0008] Wherein, T is the temperature error prediction value, k is the temperature conversion coefficient of the electromagnetic heating plate;

[0009] Power adjustment: Based on the temperature error prediction value T, the heating power of the electromagnetic coil is adjusted through feedback.

[0010] Furthermore, the feedback adjustment of the heating power of the electromagnetic coil based on the temperature error prediction value T specifically includes:

[0011] If the temperature error prediction value T is greater than or equal to 0, the electromagnetic coil power is multiplied by a factor of a;

[0012] If the temperature error prediction value T is less than 0, the electromagnetic coil power is reduced by multiplying it by a factor of a.

[0013] Furthermore, the coil power adjustment coefficient a is determined based on Formula 2, which is:

[0014] ;

[0015] Wherein, k is the temperature conversion coefficient of the electromagnetic heating plate, and a is the coil power adjustment coefficient.

[0016] Furthermore, in the step of acquiring temperature data, the temperature data is collected at a frequency of at least once per second.

[0017] Furthermore, the heating power of the electromagnetic coil can be adjusted within a range of 10% to 100% of the rated power of the electromagnetic coil.

[0018] Furthermore, the power adjustment step also includes a safety monitoring mechanism, which automatically reduces the power or cuts off the power supply when the heating power of the electromagnetic coil exceeds a preset safety threshold.

[0019] Furthermore, the heating smoking device includes a smoking device shell, and a heating component and a temperature measuring thermocouple arranged in the smoking device shell; the heating component includes a heating element, a heat dissipation element and an electromagnetic coil; a heating air duct is formed inside the heating element, one end of the heating air duct is an air inlet end, and the other end is an air outlet end; the heat dissipation element is arranged on the inner wall of the heating element to form the air duct; the electromagnetic coil is arranged on the outer periphery of the heating element and is electrically connected to the power supply for making the heating element heat up; the temperature measuring thermocouple includes an electromagnetic heating plate temperature measuring thermocouple and an air temperature measuring thermocouple; an electromagnetic heating plate temperature measuring thermocouple is provided on the electromagnetic coil in the middle section of the heating air duct, and an air temperature measuring thermocouple is also provided between the air inlet end and the air outlet end of the heating air duct.

[0020] The present application also provides a self-regulating heating temperature control system for a heated smoking device, comprising:

[0021] A temperature data acquisition module is used to obtain the temperature t3 of the air temperature measuring thermocouple at the air outlet end of the heating duct in the smoking device, the temperature t2 of the air temperature measuring thermocouple at the air inlet end of the heating duct, and the temperature t1 of the electromagnetic heating plate temperature measuring thermocouple in the middle section of the heating duct;

[0022] An error prediction module, wherein the error prediction module is used to predict the temperature error based on the deviation formula;

[0023] The power adjustment module is used to increase the electromagnetic coil power by a factor of a when the temperature error prediction value T is greater than or equal to 0; and to reduce the electromagnetic coil power by a factor of a when the temperature error prediction value T is less than 0.

[0024] Furthermore, the deviation formula is: ;

[0025] Where T is the temperature error prediction value, and k is the temperature conversion coefficient of the electromagnetic heating plate.

[0026] Furthermore, the self-regulating heating temperature control system of the heated smoking device of the present application further includes a determination module, which is used to determine the coil power adjustment coefficient a based on Formula 2; Formula 2 is:

[0027] ;

[0028] Where, k is the temperature conversion coefficient of the electromagnetic heating plate, and a is the coil power adjustment coefficient.

[0029] Furthermore, the self-regulating heating temperature control system of the heated smoking device of the present application also includes a safety monitoring mechanism module, which is used to automatically reduce the power or cut off the power supply when the heating power of the electromagnetic coil exceeds a preset safety threshold.

[0030] Beneficial effects:

[0031] The present application provides a self-regulating heating temperature control method for a heated smoking device, which can monitor and obtain the temperature data of the heating air duct in the smoking device in real time, and provide feedback to obtain a temperature error prediction of the heating air duct; by predicting the temperature error of the heating air duct in the smoking device and adjusting the heating power of the electromagnetic coil through feedback, the heating efficiency and temperature uniformity of the smoking device can be effectively improved, thereby improving the heating effect of the heated cigarettes.

[0032] The present application discloses a self-regulating heating temperature control system for a heated smoking device, which is built into the heated smoking device; a heating component and a temperature measuring thermocouple are installed on one side of the smoking device shell, and an electrically connected control system and a power supply module are built into the other side of the smoking device shell. The heating component is electrically connected to the control system, and the heating is controlled by the control system. The control system adjusts the heating coil power in real time according to the operating logic of the above-mentioned control method, effectively enhancing the heating efficiency and temperature uniformity of the smoking device, thereby improving the heating effect of the heated cigarettes. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 This is a flow chart of a method for controlling the self-regulating heating temperature of a heated smoking device provided in this application;

[0035] Figure 2 This is a schematic structural diagram of the heating smoking device in this embodiment;

[0036] Figure 3 for Figure 2 Schematic diagram of the structure of the heating component and the temperature measuring couple;

[0037] Among them, 1. Smoking device shell, 2. Heating element, 3. Control system, 4. Power supply module; 5. Electromagnetic coil, 6. Electromagnetic heating plate temperature measuring thermocouple, 7. Air temperature measuring thermocouple; 8. Heat dissipation element, 9. Heated cigarette. DETAILED DESCRIPTION

[0038] In order to help those skilled in the art better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of this application.

[0039] It should be noted that when an element is referred to as being “fixed on” or “set on” another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being “connected to” another element, it can be directly connected to the other element or indirectly connected to the other element.

[0040] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout the description of this application, "plurality" or "several" means two or more, unless otherwise specifically defined.

[0042] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the efficacy and purpose that can be achieved by this application.

[0043] The present invention will be described in detail below with reference to the accompanying drawings:

[0044] like Figure 1-3 As shown, a method for controlling the self-regulating heating temperature of a heated smoking device comprises the following steps:

[0045] Temperature data acquisition: obtain the temperature t3 of the air temperature measuring thermocouple at the air outlet end of the heating duct in the smoking device, the temperature t2 of the air temperature measuring thermocouple at the air inlet end of the heating duct, and the temperature t1 of the electromagnetic heating plate temperature measuring thermocouple in the middle section of the heating duct;

[0046] Error prediction: Temperature error prediction is performed based on the deviation formula, which is: ;

[0047] Where T is the temperature error prediction value, k is the temperature conversion coefficient of the electromagnetic heating plate;

[0048] Power adjustment: Based on the temperature error prediction value T, the heating power of the electromagnetic coil is adjusted through feedback.

[0049] Furthermore, the feedback adjustment of the heating power of the electromagnetic coil based on the temperature error prediction value T specifically includes:

[0050] If the temperature error prediction value T is greater than or equal to 0, the electromagnetic coil power is multiplied by a factor of a;

[0051] If the temperature error prediction value T is less than 0, the electromagnetic coil power is reduced by multiplying it by a factor of a.

[0052] Furthermore, the coil power adjustment coefficient a is determined based on Formula 2, which is:

[0053] ;

[0054] Wherein, k is the temperature conversion coefficient of the electromagnetic heating plate, and a is the coil power adjustment coefficient.

[0055] In a specific application of the self-regulating heating temperature control method for a heated smoking device of the present application, at a certain moment, the measured values ​​were (t1=300°C), (t2=22°C), (t3=67°C), (k=0.13), and (T=-6<0), indicating that the heating power was too high. The control system reduced the electromagnetic coil power by a factor of (a=0.87), lowering the heating power and reducing the air temperature at the outlet. At another moment, the measured values ​​were (t1=278°C), (t2=21°C), (t3=53°C), (k=0.13), and (T=4.14>0), indicating that the heating power was too low. The control system increased the electromagnetic coil power by a factor of (a=1.13), increasing the heating power and achieving a more effective heating effect.

[0056] The heating temperature control method of the present invention can adjust the heating power according to actual temperature feedback, thereby ensuring the efficiency and uniformity of the heating process, and is applicable to various heated smoking devices.

[0057] Furthermore, in the step of acquiring temperature data, the temperature data is collected at a frequency of at least once per second.

[0058] Furthermore, the heating power of the electromagnetic coil can be adjusted within a range of 10% to 100% of the rated power of the electromagnetic coil.

[0059] Furthermore, the power adjustment step includes a safety monitoring mechanism that automatically reduces or cuts off the power supply when the electromagnetic coil's heating power exceeds a preset safety threshold. This safety monitoring mechanism effectively prevents overheating and potential safety risks, enhancing the safety and reliability of the smoking device.

[0060] Furthermore, the heating smoking device includes a smoking device shell 1, and a heating component and a temperature measuring thermocouple arranged in the smoking device shell; the heating component includes a heating element 2, a heat sink 8 and an electromagnetic coil 5; a heating air duct is formed inside the heating element, one end of the heating air duct is an air inlet end, and the other end is an air outlet end; the heat sink is arranged on the inner wall of the air duct formed by the heating element; the electromagnetic coil is arranged on the outer periphery of the heating element and is electrically connected to the power supply for making the heating element heat up; the temperature measuring thermocouple includes an electromagnetic heating plate temperature measuring thermocouple 6 and an air temperature measuring thermocouple 7; an electromagnetic heating plate temperature measuring thermocouple is provided on the electromagnetic coil in the middle section of the heating air duct, and an air temperature measuring thermocouple is also provided between the air inlet end and the air outlet end of the heating air duct.

[0061] It should be noted that there is an air inlet channel in the smoking device shell, one end of the air inlet channel is connected to the outside of the smoking device, and the other end is connected to the air inlet end of the heating element.

[0062] Furthermore, the heating element is a metal or metal alloy fixture.

[0063] Furthermore, the cross section of the heating air duct is any one of a circle, a rectangle, and a rounded rectangle.

[0064] Furthermore, a plurality of heat dissipating elements are provided on the inner wall of the heating air duct along the axial direction of the heating air duct.

[0065] Furthermore, the heat sink is a plurality of heat dissipation fins or a heat dissipation net.

[0066] Furthermore, the power supply module includes a power supply and a power charging socket, and the power charging socket can be connected to an external charging power supply.

[0067] A heating component and a temperature measuring thermocouple are installed on one side of the smoking device shell, and an electrically connected control system 3 and a power supply module 4 are built into the other side of the smoking device shell. The heating component is electrically connected to the control system, and the heating is controlled by the control system. The control system operates according to the logic of the above-mentioned control method, and adjusts the heating coil power in real time to effectively enhance the heating efficiency and temperature uniformity of the smoking device, thereby improving the heating effect of the heated cigarette 9.

[0068] The present application also provides a self-regulating heating temperature control system for a heated smoking device, comprising:

[0069] A temperature data acquisition module is used to obtain the temperature t3 of the air temperature measuring thermocouple at the air outlet end of the heating duct in the smoking device, the temperature t2 of the air temperature measuring thermocouple at the air inlet end of the heating duct, and the temperature t1 of the electromagnetic heating plate temperature measuring thermocouple in the middle section of the heating duct;

[0070] An error prediction module, wherein the error prediction module is used to predict the temperature error based on the deviation formula;

[0071] The power adjustment module is used to increase the electromagnetic coil power by a factor of a when the temperature error prediction value T is greater than or equal to 0; and to reduce the electromagnetic coil power by a factor of a when the temperature error prediction value T is less than 0.

[0072] Furthermore, the deviation formula is: ;

[0073] Where T is the temperature error prediction value, and k is the temperature conversion coefficient of the electromagnetic heating plate.

[0074] Furthermore, the self-regulating heating temperature control system of the heated smoking device of the present application further includes a determination module, which is used to determine the coil power adjustment coefficient a based on Formula 2; Formula 2 is:

[0075] ;

[0076] Where, k is the temperature conversion coefficient of the electromagnetic heating plate, and a is the coil power adjustment coefficient.

[0077] Furthermore, the self-regulating heating temperature control system of the heated smoking device of the present application also includes a safety monitoring mechanism module, which is used to automatically reduce the power or cut off the power supply when the heating power of the electromagnetic coil exceeds a preset safety threshold.

[0078] The heating smoking device and the heating temperature control method and system of the present invention achieve the following significant beneficial effects through precise temperature monitoring and power self-adjustment mechanisms:

[0079] Improved heating efficiency: By real-time monitoring of the temperature of the heating air duct and predicting temperature errors, the present invention can accurately control the heating power of the electromagnetic coil to regulate heating and significantly improve heating efficiency. Compared with traditional heated smoking devices, the heating speed is increased by at least 20% and energy consumption is reduced by about 10%. By precisely controlling the heating process, the present invention can provide a more stable and comfortable smoking experience.

[0080] Optimize temperature uniformity: The present invention ensures uniform temperature distribution in the heating air duct through a self-regulating mechanism, reducing the problem of insufficient or overheating of tobacco caused by uneven temperature, improving the uniformity of tobacco heating, and ensuring a better user experience and consistency of tobacco flavor.

[0081] Enhanced safety: The built-in safety monitoring mechanism can automatically reduce the power or cut off the power supply when the heating power of the electromagnetic coil exceeds the preset safety threshold, effectively preventing overheating and potential safety risks, and improving the safety and reliability of the smoking device.

[0082] Strong adaptability: The control system of the present invention can adapt to temperature changes in different environments and usage conditions, ensuring that a consistent heating effect can be provided under various conditions, thereby enhancing the adaptability and stability of the smoking device.

[0083] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for controlling the self-regulating heating temperature of a heating smoking device, characterized in that: The following steps are involved: Temperature data acquisition: obtain the temperature t3 of the air temperature measuring thermocouple at the air outlet end of the heating duct in the smoking device, the temperature t2 of the air temperature measuring thermocouple at the air inlet end of the heating duct, and the temperature t1 of the electromagnetic heating plate temperature measuring thermocouple in the middle section of the heating duct; Error prediction: Temperature error prediction based on the deviation formula, The deviation formula is: ; Wherein, T is the temperature error prediction value, k is the temperature conversion coefficient of the electromagnetic heating plate; Power adjustment: Based on the temperature error prediction value T, the heating power of the electromagnetic coil is adjusted by feedback; The method of adjusting the heating power of the electromagnetic coil by feedback based on the temperature error prediction value T specifically includes: If the temperature error prediction value T is greater than or equal to 0, the electromagnetic coil power is multiplied by a factor of a; If the temperature error prediction value T is less than 0, the electromagnetic coil power is reduced by multiplying it by a factor of a; The coil power adjustment coefficient a is determined based on Formula 2, which is: ； Wherein, k is the temperature conversion coefficient of the electromagnetic heating plate, and a is the coil power adjustment coefficient.

2. The method for controlling the self-regulating heating temperature of a heated smoking device according to claim 1, characterized in that: In the step of acquiring temperature data, the temperature data is collected at a frequency of at least once per second.

3. The method for controlling the self-regulating heating temperature of a heated smoking device according to any one of claims 1 to 2, characterized in that: The heating power adjustment range of the electromagnetic coil is 10%-100% of the rated power of the electromagnetic coil.

4. The method for controlling the self-regulating heating temperature of a heated smoking device according to claim 3, wherein: The power adjustment step also includes a safety monitoring mechanism, which automatically reduces the power or cuts off the power supply when the heating power of the electromagnetic coil exceeds a preset safety threshold.

5. The method for controlling the self-regulating heating temperature of a heated smoking device according to any one of claims 1 to 2 and 4, characterized in that: The heating smoking device includes a smoking device shell, and a heating component and a temperature measuring thermocouple arranged in the smoking device shell; the heating component includes a heating element, a heat dissipation element and an electromagnetic coil; a heating air duct is formed inside the heating element, one end of the heating air duct is an air inlet end, and the other end is an air outlet end; the heat dissipation element is arranged on the inner wall of the heating element to form the air duct; the electromagnetic coil is arranged on the outer periphery of the heating element and is electrically connected to the power supply for making the heating element heat up; the temperature measuring thermocouple includes an electromagnetic heating plate temperature measuring thermocouple and an air temperature measuring thermocouple; an electromagnetic heating plate temperature measuring thermocouple is provided on the electromagnetic coil in the middle section of the heating air duct, and an air temperature measuring thermocouple is also provided between the air inlet end and the air outlet end of the heating air duct.

6. A self-regulating heating temperature control system for a heated smoking device, characterized in that: include: A temperature data acquisition module is used to obtain the temperature t3 of the air temperature measuring thermocouple at the air outlet end of the heating duct in the smoking device, the temperature t2 of the air temperature measuring thermocouple at the air inlet end of the heating duct, and the temperature t1 of the electromagnetic heating plate temperature measuring thermocouple in the middle section of the heating duct; An error prediction module, wherein the error prediction module is used to predict the temperature error based on the deviation formula; A power adjustment module, wherein the power adjustment module is used to increase the power of the electromagnetic coil by a factor of a when the temperature error prediction value T is greater than or equal to 0; and to reduce the power of the electromagnetic coil by a factor of a when the temperature error prediction value T is less than 0; The deviation formula is: ; Where T is the temperature error prediction value, k is the temperature conversion coefficient of the electromagnetic heating plate; The invention also includes a determination module, which is used to determine the coil power adjustment coefficient a based on Formula 2; Formula 2 is: ； Where, k is the temperature conversion coefficient of the electromagnetic heating plate, and a is the coil power adjustment coefficient.

7. The self-regulating heating temperature control system of the heated smoking device according to claim 6, characterized in that: It also includes a safety monitoring mechanism module, which is used to automatically reduce the power or cut off the power supply when the heating power of the electromagnetic coil exceeds a preset safety threshold.

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