Heating without burning device based on thermal energy compensation system and control method thereof

Abstract

The present invention provides a heating-not-burning device based on a thermal energy compensation system and a control method thereof, which comprises: a tobacco heating chamber having a first heating temperature; a thermal energy compensation chamber, in which an air pressure sensor, a temperature sensor, a flow sensor, and a pressure switch are arranged, the air pressure sensor is used to detect pressure changes, the temperature sensor is used to detect temperature changes, the pressure switch is used to control the opening and closing of the air inlet of the thermal energy compensation chamber, the flow sensor is used to calculate the amount of air entering the thermal energy compensation chamber, the thermal energy compensation chamber has a heating element, and the heat generated by the heating element is △T; a connector, connecting the thermal energy compensation chamber and the tobacco heating chamber, and transmitting the heat energy of the heat △T generated in the thermal energy compensation chamber to the tobacco heating chamber, so that the tobacco generates aerosol under the joint action of the first heating temperature and the heat energy of △T. The heating method thereof realizes the rapid generation of aerosol by tobacco in the form of position compensation heat supply, which can effectively prevent the tobacco from being burned.

Description

Technical Field

[0001] The invention relates to a heating without burning device based on a thermal energy compensation system and a control method thereof. Background Art

[0002] A heating-without-burning device for low-temperature tobacco currently in use includes a heating chamber, a power supply, and a circuit board. The circuit board is connected to the power supply. A pin is arranged in the heating chamber. The pin is resistively heated and connected to the circuit board. The circuit board controls the heating power of the pin. When in use, tobacco (cigarette) is placed in the heating chamber, and the pin is inserted into the center of the tobacco. The pin is energized to generate heat to heat the tobacco. The heat is transferred from the pin to the tobacco through heat transfer and slowly diffuses outward from the center of the tobacco. Since the pin is located in the center of the tobacco, the temperature at the center of the tobacco is the highest, which can easily cause the tobacco at the center of the tobacco to burn, while the surrounding area of ​​the tobacco has not yet been heated and atomized.

[0003] As an example to solve the above problem, there is also a heating without burning device for low-temperature tobacco. The difference between the above device and the heating device is that a heating layer is arranged on the inner wall of the heating chamber. This design makes it easy for the tobacco to be inserted into the heating layer in the heating chamber while the outer wall of the tobacco is already in close contact with the inner wall of the heating layer. This is because it is easy for the heat generated by the heating layer to be transferred to the outer wall of the tobacco, and it is easy to transfer heat from the outside to the inside. The insertion pin and the heating layer at the center of the heating chamber are heated together, and the insertion pin heats the tobacco from the inside to the outside at this time. This inside-out heating method has the following problem. Since the temperature of the insertion pin is transferred from the inside to the outside in the tobacco, when the temperature reaches the outer surface of the tobacco, the tobacco (and the tobacco packaging paper) located on the outer surface will be pushed outward, and the tobacco and the packaging paper on the outer surface will be tightly attached to the inner wall of the heating layer, which will cause the heating layer to burn the outer surface of the tobacco, and the tobacco located in the center will inevitably be burned by the insertion pin. This method of burning the tobacco inside and outside is even more undesirable. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and provide a heating without burning device based on a thermal energy compensation system and a control method thereof, which has the characteristics of heat compensation supply, low-temperature rapid heating of tobacco, and anti-scorching.

[0005] The present invention is implemented as follows: a heating without burning device based on a thermal energy compensation system, characterized in that it includes:

[0006] a tobacco heating chamber having a first heating temperature;

[0007] A thermal compensation chamber, in which an air pressure sensor, a temperature sensor, a flow sensor, and a pressure switch are arranged. The air pressure sensor is used to detect pressure changes in the thermal compensation chamber, the temperature sensor is used to detect temperature changes in the thermal compensation chamber, the pressure switch is used to control the opening and closing of the air inlet of the thermal compensation chamber, and the flow sensor is used to calculate the amount of air entering the thermal compensation chamber. The thermal compensation chamber has a heating element, and the heat generated by the heating element is △T;

[0008] A connector connects the thermal energy compensation chamber and the tobacco heating chamber. The connector is used to transfer the heat energy △T generated in the thermal energy compensation chamber to the tobacco heating chamber. Under the combined effect of the first heating temperature and the heat energy of △T, the tobacco in the tobacco heating chamber generates aerosol.

[0009] Furthermore, an air hole is opened in the connector, and a plurality of mesh holes are opened on the bottom wall of the tobacco heating chamber. One end of the air hole is connected to the thermal energy compensation chamber, and the other end of the air hole is connected to the mesh hole, so that the heat energy of △T enters the tobacco heating chamber through the mesh hole.

[0010] Furthermore, the thermal energy compensation chamber includes a plurality of preheating chambers, each of which has a heating element, an air pressure sensor, a temperature sensor, a flow sensor, and a pressure switch.

[0011] Furthermore, the tobacco heating chamber is an electromagnetic induction heating chamber, which includes a heat insulation layer, an induction layer, an induction coil, and a temperature sensor. The induction coil is sleeved on the outer periphery of the heat insulation layer, and the heat insulation layer is sleeved on the outer periphery of the induction layer. The induction coil and the temperature sensor are connected to a circuit board, and the heating element of the thermal energy compensation chamber is a heating wire, which is connected to the circuit board.

[0012] Further, the tobacco heating chamber is an electromagnetic induction heating chamber, which includes a first thermal insulation layer, a first induction layer, and a first induction coil. The first induction coil is sleeved around the first thermal insulation layer, the first thermal insulation layer is sleeved around the first induction layer, and the first induction coil is connected to the first circuit board; the heating element of the thermal energy compensation chamber is also an electromagnetic induction heating chamber, and the thermal energy compensation chamber includes a second thermal insulation layer, a second induction layer, and a second induction coil. The second induction coil is sleeved around the second thermal insulation layer, the second thermal insulation layer is sleeved around the second induction layer, and the second induction coil is connected to the second circuit board.

[0013] Furthermore, a one-way valve is provided at the air outlet of the thermal energy compensation chamber, and the one-way valve only allows the airflow in the thermal energy compensation chamber to flow to the tobacco heating chamber.

[0014] Furthermore, the thermal energy compensation chamber includes a plurality of preheating chambers, each of which has a heating element, an air pressure sensor, a temperature sensor, a flow sensor, and a pressure switch, and the plurality of thermal energy compensation chambers are arranged in series or in parallel.

[0015] Furthermore, when a plurality of the thermal energy compensation chambers are arranged in series, they are distributed in an up-and-down direction, and between any two adjacent preheating chambers, the air outlet of the lower preheating chamber is connected to the air inlet of the upper preheating chamber.

[0016] Furthermore, when a plurality of the thermal energy compensation chambers are arranged in parallel, they are distributed so that the air inlet of each preheating chamber is connected to the outside, and the air outlet of each preheating chamber is connected to the connector.

[0017] A control method for a heating without combustion device based on a thermal energy compensation system comprises the following steps:

[0018] a. Turn on the power of the heat-not-burn device. A circuit board is set in the heat-not-burn device. The sensor in the tobacco heating chamber detects whether there is a cigarette / tobacco. If not, the thermal compensation chamber does not work; if so, the sensor sends a signal to the circuit board, and the circuit board sends a signal to the thermal compensation chamber and the tobacco heating chamber, and enters the following working mode;

[0019] b. The tobacco heating chamber starts to heat up to the first heating temperature, the air pressure sensor and the temperature sensor detect the initial pressure P1 and the initial temperature T1 in the thermal energy compensation chamber respectively, the volume of the thermal energy compensation chamber is defined as V, and the pressure switch closes the air inlet of the thermal energy compensation chamber;

[0020] c. According to the heat energy required by the heating element to generate the heat △T, calculate the preheating pressure P2 and preheating temperature T2 to which the heating element needs to heat the air in the heat compensation cavity;

[0021] d. Calculate the compensation electric energy △W1 required for the air pressure in the thermal compensation chamber to change from P1 to P2 and the air temperature to change from T1 to T2, and thereby determine the heating time △t1 of the heating element in the thermal compensation chamber, △t1=f(P1, P2, T1, T2, V, △W), and stop heating after heating for △t1 time;

[0022] e. When smoking starts, the pressure switch opens the air inlet of the heat compensation chamber, and the preheated gas in the heat compensation chamber enters the tobacco heating chamber. Under the combined effect of the first heating temperature and the heat energy of △T, the tobacco in the tobacco heating chamber generates aerosol;

[0023] f. After the pressure of the air in the thermal compensation chamber and the temperature of the air change, the pressure switch closes the air inlet of the thermal compensation chamber, and the air pressure sensor and the temperature sensor continue to detect the pressure P3 and the temperature T3 in the thermal compensation chamber respectively. According to the heat energy required by the heat △T generated by the heating element this time, the preheating pressure P4 and the preheating temperature T4 that the heating element needs to heat the air in the thermal compensation chamber again are calculated, and the compensation electric energy △W2 required for the pressure of the air in the thermal compensation chamber to change from P3 to P4 and the temperature of the air to change from T3 to T4 is calculated, so as to determine the heating time △t2 of the heating element in the thermal compensation chamber, △t2=f(P3, P4, T3, T4, V, △W2), and stop heating after heating for △t2 time;

[0024] f. Repeat steps e and f.

[0025] The heat energy of the heat △T generated in the heat compensation chamber of the present invention is transmitted to the tobacco heating chamber. Under the combined effect of the first heating temperature and the heat energy of △T, the tobacco in the tobacco heating chamber generates aerosol, thereby achieving the evaporation of the aroma in the low-temperature tobacco, ensuring that the tobacco is heated evenly, and avoiding the burning phenomenon caused by excessive local temperature of the tobacco. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0027] Figure 1 A stereogram provided for the present invention;

[0028] Figure 2 A cross-sectional view of the present invention. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] like Figure 1-Figure 2The embodiment of the present invention provides a heating-without-combustion device based on a thermal energy compensation system, which includes: a tobacco heating chamber 1, which has a first heating temperature; a thermal energy compensation chamber 2, in which an air pressure sensor, a temperature sensor, a flow sensor, and a pressure switch are arranged, the air pressure sensor is used to detect the pressure change in the thermal energy compensation chamber 2, the temperature sensor is used to detect the temperature change in the thermal energy compensation chamber 2, the pressure switch is used to control the opening and closing of the air inlet of the thermal energy compensation chamber 2, the flow sensor is used to calculate the amount of air entering the thermal energy compensation chamber 2, the thermal energy compensation chamber 2 has a heating element 21, and the heat generated by the heating element 21 is △T; a connector 3, connecting the thermal energy compensation chamber 2 and the tobacco heating chamber 1, the connector 3 is used to transfer the heat energy of the heat △T generated in the thermal energy compensation chamber 2 to the tobacco heating chamber 1, and under the combined action of the first heating temperature and the heat energy of △T, the tobacco 5 (also called a cigarette) in the tobacco heating chamber 1 generates aerosol.

[0031] An air hole 31 is provided in the connector 3, and a plurality of mesh holes 4 are provided on the bottom wall of the tobacco heating chamber 1. One end of the air hole 31 is connected to the thermal energy compensation chamber 2, and the other end of the air hole 31 is connected to the mesh hole 4. The heat energy of △T enters the tobacco heating chamber 1 through the mesh hole 4. Specifically, the hot air flow passes through the mesh hole 4, and the hot air flow moves from bottom to top and enters the tobacco heating chamber 1 through the plurality of mesh holes 4. The effective area for the hot air flow to pass through the mesh hole 4 matches the cross-sectional size of the tobacco (cigarette). The part of the outer side of the tobacco that contacts the inner wall of the tobacco heating chamber 1 can be effectively prevented from being burnt, because the hot air flow in the mesh hole 4 flows directly upward, and the heat generated by the part of the inner wall of the tobacco heating chamber 1 that contacts the tobacco is transferred inward in the horizontal direction, so as to avoid the phenomenon that the outer side of the tobacco is squeezed by the inner wall of the tobacco heating chamber 1 due to the outward expansion, resulting in the phenomenon that the outer side of the tobacco is burnt. At the same time, the phenomenon of burning at the center of the tobacco is also effectively prevented.

[0032] The thermal energy compensation chamber 2 includes a plurality of preheating chambers 22, each of which has a heating element 21, an air pressure sensor, a temperature sensor, a flow sensor, and a pressure switch, so that the heating elements 21 can work separately and generate heat separately, thereby improving the heat generation efficiency and shortening the time required to generate ΔT heat energy.

[0033] Furthermore, the tobacco heating chamber 1 is an electromagnetic induction heating chamber, which includes a heat insulation layer 11, an induction layer 12, an induction coil 13, and a temperature sensor. The induction coil 13 is sleeved on the outer periphery of the heat insulation layer 11, and the heat insulation layer 11 is sleeved on the outer periphery of the induction layer 12. The induction coil 13 and the temperature sensor are connected to the circuit board. The heating element 21 of the thermal energy compensation chamber 2 is a heating wire, and the heating wire is connected to the circuit board. The upper tobacco heating chamber 1 adopts electromagnetic induction heating, which has a fast heating speed and is convenient for quickly heating tobacco and maintaining the tobacco heating chamber 1 at the first heating temperature. The first heating temperature is lower than the combustion temperature of tobacco, and tobacco cannot be ignited. The tobacco can be kept in a high-fidelity state, and the only difference is the heat energy of △T in the thermal energy compensation chamber 2. When the heat energy of △T in the thermal energy compensation chamber 2 enters the tobacco heating chamber 1, the heat energy of △T and the heat energy generated by the first heating temperature are mixed together to evaporate the aroma in the tobacco for people to smoke.

[0034] Furthermore, the tobacco heating chamber 1 is an electromagnetic induction heating chamber, and the tobacco heating chamber 1 includes a first thermal insulation layer, a first induction layer, and a first induction coil. The first induction coil is sleeved on the periphery of the first thermal insulation layer, and the first thermal insulation layer is sleeved on the periphery of the first induction layer, and the first induction coil is connected to the first circuit board; the heating element 21 of the thermal energy compensation chamber 2 is also an electromagnetic induction heating chamber, and the thermal energy compensation chamber 2 includes a second thermal insulation layer, a second induction layer, and a second induction coil. The second induction coil is sleeved on the periphery of the second thermal insulation layer, and the second thermal insulation layer is sleeved on the periphery of the second induction layer, and the second induction coil is connected to the second circuit board. The working principle of this design is the same as above.

[0035] A one-way valve is arranged at the air outlet of the thermal energy compensation chamber 2, and the one-way valve only allows the airflow in the thermal energy compensation chamber 2 to flow to the tobacco heating chamber 1. This design can prevent the heat in the tobacco heating chamber 1 from flowing into the thermal energy compensation chamber 2, thereby facilitating the precise control of the temperature in the tobacco heating chamber 1. It can also prevent the temperature difference generated in the thermal energy compensation chamber 2 during heating, resulting in insufficient heating energy in the thermal energy compensation chamber 2, and further resulting in insufficient energy required for subsequent gasification of the tobacco.

[0036] The thermal energy compensation chamber 2 includes a plurality of preheating chambers 22, each of which has a heating element 21, an air pressure sensor, a temperature sensor, a flow sensor, and a pressure switch. The plurality of thermal energy compensation chambers 2 are arranged in series or in parallel. When the plurality of thermal energy compensation chambers 2 are arranged in series, they are arranged in an up-down direction. Between any two adjacent preheating chambers 22, the air outlet of the lower preheating chamber 22 is connected to the air inlet of the upper preheating chamber 22. When the plurality of thermal energy compensation chambers 2 are arranged in parallel, the air inlet of each preheating chamber 22 is connected to the outside world, and the air outlet of each preheating chamber 22 is connected to the connector 3.

[0037] A control method for a heating without combustion device based on a thermal energy compensation system comprises the following steps:

[0038] a. Turn on the power of the heat-not-burn device. A circuit board is provided in the heat-not-burn device. The sensor in the tobacco heating chamber 1 detects whether there is a cigarette / tobacco. If not, the thermal energy compensation chamber 2 does not work. If so, the sensor sends a signal to the circuit board, and the circuit board sends a signal to the thermal energy compensation chamber 2 and the tobacco heating chamber 1, and enters the following working mode;

[0039] b. The tobacco heating chamber 1 starts to heat up to the first heating temperature, the air pressure sensor and the temperature sensor respectively detect the initial pressure P1 and the initial temperature T1 in the thermal energy compensation chamber 2, the volume of the thermal energy compensation chamber 2 is defined as V, and the pressure switch closes the air inlet of the thermal energy compensation chamber 2;

[0040] c. Calculate the preheating pressure P2 and preheating temperature T2 to which the heating element 21 needs to heat the air in the heat compensation chamber 2 according to the heat energy required by the heating element 21 to generate the heat △T.

[0041] d. Calculate the compensation electric energy △W1 required for the air pressure in the thermal compensation chamber 2 to change from P1 to P2 and the air temperature to change from T1 to T2, so as to determine the heating time △t1 of the heating element 21 in the thermal compensation chamber 2, △t1=f(P1, P2, T1, T2, V, △W), and stop heating after heating for △t1 time;

[0042] e. When smoking starts, the pressure switch opens the air inlet of the heat compensation chamber 2, and the preheated gas in the heat compensation chamber 2 enters the tobacco heating chamber 1. Under the combined effect of the first heating temperature and the heat energy of △T, the tobacco in the tobacco heating chamber 1 generates aerosol;

[0043] f. After the pressure and temperature of the air in the thermal compensation chamber 2 change, the pressure switch closes the air inlet of the thermal compensation chamber 2, and the air pressure sensor and the temperature sensor continue to detect the pressure P3 and the temperature T3 in the thermal compensation chamber 2 respectively. According to the heat energy required by the heat △T generated by the heating element 21 this time, the preheating pressure P4 and the preheating temperature T4 that the heating element 21 needs to heat the air in the thermal compensation chamber 2 again are calculated, and the compensation electric energy △W2 required for the pressure of the air in the thermal compensation chamber 2 to change from P3 to P4 and the temperature of the air to change from T3 to T4 is calculated, so as to determine the heating time △t2 of the heating element 21 in the thermal compensation chamber 2, △t2=f(P3, P4, T3, T4, V, △W2), and stop heating after heating for △t2 time;

[0044] f. Repeat steps e and f. In this cycle, the heat energy △T that the heating element 21 needs to generate each time may be the same or different, because the amount of heat absorbed from the heat compensation chamber 22 is different each time you smoke. This requires that after each inhalation and smoking, the heat compensation chamber 2 is replenished with air, and the air pressure sensor and temperature sensor continue to detect the pressure Pn and temperature Tn in the heat compensation chamber 22 respectively, and the flow sensor detects the flow rate Qn of the air entering each time to determine the temperature Tn+1 and the pressure Pn+1 that need to be raised. In principle, the temperature Tn+1 and the pressure Pn+1 that need to be raised are equal to the preheating temperature T2 and the preheating pressure P2, respectively, to achieve cyclic compensation of heat energy, so as to ensure that the heat energy achieved after each compensation is equal, and to ensure the consistency of the taste of each subsequent puff of tobacco.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A heating without combustion device based on a thermal energy compensation system, characterized in that: include: a tobacco heating chamber having a first heating temperature; A thermal energy compensation chamber, in which an air pressure sensor, a temperature sensor, a flow sensor and a pressure switch are arranged, the air pressure sensor is used to detect the pressure change in the thermal energy compensation chamber, the temperature sensor is used to detect the temperature change in the thermal energy compensation chamber, the pressure switch is used to control the opening and closing of the air inlet of the thermal energy compensation chamber, the flow sensor is used to calculate the amount of air entering the thermal energy compensation chamber, the thermal energy compensation chamber has a heating element, the heat generated by the heating element is △T, wherein a one-way valve is arranged at the air outlet of the thermal energy compensation chamber, and the one-way valve only allows the airflow in the thermal energy compensation chamber to flow to the tobacco heating chamber; A connector, connecting the thermal energy compensation chamber and the tobacco heating chamber, the connector is used to transfer the heat energy ΔT generated in the thermal energy compensation chamber to the tobacco heating chamber, wherein: When the tobacco heating chamber starts to heat up to the first heating temperature, the pressure switch closes the air inlet of the thermal energy compensation chamber, and the heating element heats until the heat generated in the thermal energy compensation chamber reaches △T, at which time the heating element stops heating. At this time, smoking begins, and the pressure switch opens the air inlet of the thermal energy compensation chamber, so that the preheated gas in the thermal energy compensation chamber enters the tobacco heating chamber, so that the heat energy of the heat △T generated in the thermal energy compensation chamber is transmitted to the tobacco heating chamber through the connector, and under the combined effect of the first heating temperature and the heat energy of △T, the tobacco in the tobacco heating chamber generates aerosol; When the air pressure and air temperature in the thermal energy compensation chamber change, the pressure switch closes the air inlet of the thermal energy compensation chamber again, and the heating element heats until the heat generated in the thermal energy compensation chamber reaches △T again, and the heating element stops heating again.

2. A heating without combustion device based on a thermal energy compensation system as claimed in claim 1, characterized in that: An air hole is provided in the connector, and a plurality of mesh holes are provided on the bottom wall of the tobacco heating chamber. One end of the air hole is connected to the thermal energy compensation chamber, and the other end of the air hole is connected to the mesh hole. The heat energy of △T enters the tobacco heating chamber through the mesh hole.

3. A heating without combustion device based on a thermal energy compensation system as claimed in claim 1, characterized in that: The thermal energy compensation chamber includes a plurality of preheating chambers, each of which has a heating element, an air pressure sensor, a temperature sensor, a flow sensor and a pressure switch.

4. A heating without combustion device based on a thermal energy compensation system as claimed in claim 1, characterized in that: The tobacco heating chamber is an electromagnetic induction heating chamber, which includes a heat insulation layer, an induction layer, an induction coil and a temperature sensor. The induction coil is sleeved on the outer periphery of the heat insulation layer, and the heat insulation layer is sleeved on the outer periphery of the induction layer. The induction coil and the temperature sensor are connected to a circuit board. The heating element of the thermal energy compensation chamber is a heating wire, and the heating wire is connected to the circuit board.

5. A heating without combustion device based on a thermal energy compensation system as claimed in claim 1, characterized in that: The tobacco heating chamber is an electromagnetic induction heating chamber, which includes a first thermal insulation layer, a first induction layer and a first induction coil, the first induction coil is sleeved around the first thermal insulation layer, the first thermal insulation layer is sleeved around the first induction layer, and the first induction coil is connected to a first circuit board; the heating element of the thermal energy compensation chamber is also an electromagnetic induction heating chamber, the thermal energy compensation chamber includes a second thermal insulation layer, a second induction layer and a second induction coil, the second induction coil is sleeved around the second thermal insulation layer, the second thermal insulation layer is sleeved around the second induction layer, and the second induction coil is connected to a second circuit board.

6. A heating without combustion device based on a thermal energy compensation system as claimed in claim 1, characterized in that: The thermal energy compensation chamber includes a plurality of preheating chambers, each of which has a heating element, an air pressure sensor, a temperature sensor, a flow sensor and a pressure switch, and the plurality of thermal energy compensation chambers are arranged in series or in parallel.

7. A heating without combustion device based on a thermal energy compensation system as claimed in claim 6, characterized in that: When a plurality of the thermal energy compensation chambers are arranged in series, they are distributed in the up and down directions, and between any two adjacent preheating chambers, the air outlet of the lower preheating chamber is connected to the air inlet of the upper preheating chamber.

8. A heating without combustion device based on a thermal energy compensation system as claimed in claim 6, characterized in that: When a plurality of the thermal energy compensation chambers are arranged in parallel, they are distributed so that the air inlet of each of the preheating chambers is connected to the outside, and the air outlet of each of the preheating chambers is connected to the connector.

9. A control method for a heating without combustion device based on a thermal energy compensation system according to any one of claims 1 to 8, characterized in that: The following steps are involved: a. Turn on the power of the heat-not-burn device, a circuit board is provided in the heat-not-burn device, and the sensor in the tobacco heating chamber detects whether there is a cigarette / tobacco, if not, the thermal energy compensation chamber does not work; if so, the sensor sends a signal to the circuit board, and the circuit board sends a signal to the thermal energy compensation chamber and the tobacco heating chamber, and enters the following working mode; b. The tobacco heating chamber starts to heat up to the first heating temperature, the air pressure sensor and the temperature sensor respectively detect the initial pressure P1 and the initial temperature T1 in the thermal energy compensation chamber, the volume of the thermal energy compensation chamber is defined as V, and the pressure switch closes the air inlet of the thermal energy compensation chamber; c. Calculate the preheating pressure P2 and preheating temperature T2 to which the heating element needs to heat the air in the heat compensation cavity according to the heat energy required for the heat △T to be generated by the heating element this time; d. Calculate the compensation electric energy △W1 required for the air pressure in the thermal energy compensation chamber to change from P1 to P2 and the air temperature to change from T1 to T2, so as to determine the heating time △t1 of the heating element in the thermal energy compensation chamber, △t1=f(P1, P2, T1, T2, V, △W1), and stop heating after heating for △t1 time; e. When smoking starts, the pressure switch opens the air inlet of the thermal energy compensation chamber, and the preheated gas in the thermal energy compensation chamber enters the tobacco heating chamber. Under the combined effect of the first heating temperature and the heat energy of ΔT, the tobacco in the tobacco heating chamber generates aerosol, wherein a one-way valve is provided at the air outlet of the thermal energy compensation chamber, and the one-way valve only allows the airflow in the thermal energy compensation chamber to flow to the tobacco heating chamber; f. After the pressure of the air in the thermal energy compensation chamber and the temperature of the air change, the pressure switch closes the air inlet of the thermal energy compensation chamber, and the air pressure sensor and the temperature sensor continue to detect the pressure P3 and the temperature T3 in the thermal energy compensation chamber respectively. According to the heat energy required by the heat △T generated by the heating element this time, the preheating pressure P4 and the preheating temperature T4 that the heating element needs to heat the air in the thermal energy compensation chamber again are calculated. The compensation electric energy △W2 required for the pressure of the air in the thermal energy compensation chamber to change from P3 to P4 and the temperature of the air to change from T3 to T4 is calculated, so as to determine the heating time △t2 of the heating element in the thermal energy compensation chamber, △t2=f(P3, P4, T3, T4, V, △W2), and the heating is stopped after the heating time △t2; g. Repeat steps e and f.

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