AEROSOL GENERATION METHOD AND APPARATUS, AND COMPUTER PROGRAM PRODUCT AND STORAGE MEDIUM

Abstract

 An aerosol forming method and device, a computer program product and storage medium thereof are disclosed. The aerosol forming method includes: performing a heating control on a first heater (21) in a first stage to cause the temperature of the first heater to raise to a first temperature and then lower to a second temperature, and, performing a heating control on a second heater (22) to cause the temperature of the second heater to raise to a third temperature. In a second stage, the second heater is performed a heating control to cause the temperature of the second heater to raise to a fourth temperature, and the first heater is performed a heating control to cause the temperature of the first heater to lower to a fifth temperature. Thus, the aerosol forming substrate will not be baked at a too high temperature, whereby occurrence of miscellaneous gas or burnt smell can be inhibited, and a good taste and aerosol quality during inhalation can be guaranteed.

Description

FIELD

[0001] The invention relates to the field of atomization, and more particularly, relates to an aerosol forming method and device, and a computer program product and a storage medium thereof.

BACKGROUND

[0002] When aerosol formed by an aerosol forming device is consumed by a user, during heating, the variation of temperature of heating will change the degree of formation of the aerosol carrying the nicotine and (in some conditions) the flavouring.

[0003] The temperature control manner adopted by the current available aerosol forming device is to raise the temperature of the aerosol forming substrate to an operation temperature and then keep at the temperature to the end of a predetermined period of time. The disadvantage of the method is that the temperature is difficult to be ascertained. If the operation temperature is too high, the taste and aerosol quality is better in the initial phase of inhalation. However, during the later phase of the inhalation, the impurity of the aerosol will increase due to overheating. If the operation temperature is too low, aerosol is thin or even absent in the initial phase of inhalation since the heating is not sufficient, and the taste is not good.

SUMMARY

TECHNICAL PROBLEM

[0004] The technical issue to be settled by the invention is to overcome the above-mentioned defects in the prior art that the operation temperature is difficult to be ascertained.

SOLUTION

[0005] The technical solution that the present invention adopts to resolve the technical issues is to provide an aerosol forming method comprising:

In a first stage, performing a heating control on a first heater to cause the temperature of the first heater to raise to a first temperature and then lower to a second temperature, and, performing a heating control on a second heater to cause the temperature of the second heater to raise to a third temperature, wherein the third temperature is lower than the second temperature;

In a second stage, performing a heating control on the second heater to cause the temperature of the second heater to raise from the third temperature to a fourth temperature, and, performing a heating control on the first heater to cause the temperature of the first heater to lower from the second temperature to a fifth temperature, wherein the fourth temperature is higher than the fifth temperature.

[0006] Preferably, the performing a heating control on the first heater to cause the temperature of the first heater to raise to a first temperature and then lower to a second temperature, comprises:
Performing a heating control on the first heater to cause the temperature of the first heater to raise to the first temperature during a first period of time in the first stage, and during a second period of time in the first stage, cause the temperature of the first heater to lower continuously from the first temperature to the second temperature, or cause the temperature of the first heater to lower to the second temperature and then maintain at the second temperature, wherein the first period of time is shorter than the second period of time.

[0007] Preferably, the performing a heating control on the second heater to cause the temperature of the second heater to raise to a third temperature, comprises:
during the second period of time in the first stage, performing the heating control on the second heater to cause the temperature of the second heater to raise to the third temperature and then maintain at the third temperature, or cause the temperature of the second heater to raise continuously to the third temperature.

[0008] Preferably, the performing a heating control on the second heater to raise the temperature of the second heater from the third temperature to the fourth temperature, comprises:
Performing a heating control on the second heater to cause the temperature of the second heater to raise from the third temperature to the fourth temperature during a third period of time in the second stage, and during a fourth period of time in the second stage, cause the temperature of the second heater to maintain at the fourth temperature, or cause the temperature of the second heater to raise from the fourth temperature to a sixth temperature, wherein the third period of time and the fourth period of time are two periods of time of the second stage divided by a first dividing scheme , and the third period of time is shorter than the fourth period of time.

[0009] Preferably, the performing a heating control on the first heater to lower the temperature of the first heater from the second temperature to the fifth temperature, comprises:
Performing a heating control on the first heater to cause the temperature of the first heater to lower from the second temperature to the fifth temperature during a fifth period of time in the second stage, and during a sixth period of time in the second stage, cause the temperature of the first heater to maintain at the fifth temperature, or, cause the temperature of the first heater to raise from the fifth temperature a seventh temperature, wherein the fifth period of time and the sixth period of time are two periods of time of the second stage divided by a second dividing scheme, and the fifth period of time is shorter than the sixth period of time, and the fourth temperature is higher than the seventh temperature.

[0010] Preferably, the first temperature is in the range of 150°C-300°C; the second temperature is in the range of 150°C-300°C.

[0011] Preferably, a difference between the second temperature and the first temperature is in the range of 5°C-100°C.

[0012] Preferably, the third temperature is in the range of 50°C-200°C; the fourth temperature is in the range of 150°C-300°C.

[0013] Preferably, the performing a heating control on the first heater comprises:

Using electromagnetic heating method to perform the heating control on the first heater;
And/or,

The performing heating control on the second heater comprises:
Using electromagnetic heating method to perform the heating control on the second heater.

[0014] The invention further includes an aerosol forming device, comprising: a first heater, a second heater, a first control unit, a second control unit, wherein:

The first control unit is configured for, in a first stage, performing a heating control on the first heater to cause the temperature of the first heater to raise to a first temperature and the lower to a second temperature, and, in a second stage, performing a heating control on the first heater to cause the temperature of the first heater to lower from the second temperature to a fifth temperature;

The second control unit is configured for, in the first stage, performing a heating control on the second heater to cause the temperature of the second heater to raise to a third temperature, and, in a second stage, performing a heating control on the second heater to cause the temperature of the second heater to raise from the third temperature to a fourth temperature, wherein the third temperature is lower than the second temperature, and the fourth temperature is higher than the fifth temperature.

[0015] Preferably, the first control unit is configured for performing heating control on the first heater to cause the temperature of the first heater to raise to the first temperature during a first period of time in the first stage, and during a second period of time in the first stage, cause the temperature of the first heater to lower continuously from the first temperature to the second temperature, or cause the temperature of the first heater to lower to the second temperature and then maintain at the second temperature, wherein the first period of time is shorter than the second period of time.

[0016] Preferably, the second control unit is configured for performing heating control on the second heater during the second period of time in the first stage to cause the temperature of the second heater to raise to the third temperature and then maintain at the third temperature, or to cause the temperature of the second heater to raise continuously to the third temperature.

[0017] Preferably, the second control unit is configured for performing heating control on the second heater during a third period of time in the second stage to cause the temperature of the second heater to raise from the third temperature to the fourth temperature, and during a fourth period of time in the second stage, cause the temperature of the second heater to maintain at the fourth temperature, or cause the temperature of the second heater to raise from the fourth temperature to a sixth temperature, wherein the third period of time and the fourth period of time are two periods of time of the second stage divided by a first dividing scheme , and the third period of time is shorter than the fourth period of time.

[0018] Preferably, the first control unit is configured for performing heating control on the first heater to cause the temperature of the first heater to lower from the second temperature to the fifth temperature during a fifth period of time in the second stage, and during a sixth period of time in the second stage, cause the temperature of the first heater to maintain at the fifth temperature, or, cause the temperature of the first heater to raise from the fifth temperature a seventh temperature, wherein the fifth period of time and the sixth period of time are two periods of time of the second stage divided by a second dividing scheme, and the fifth period of time is shorter than the sixth period of time, and the fourth temperature is higher than the seventh temperature.

Preferably, the first temperature is in the range of 150°C-300°C;

The second temperature is in the range of 150°C-300°C, and a difference between the second temperature and the first temperature is in the range of 5°C-100°C;

Preferably, the third temperature is in the range of 50°C-200°C;

[0019] The fourth temperature is in the range of 150°C-300°C.

[0020] Preferably, the first control unit comprises:
A first temperature detecting module, configured for detecting the temperature of the first heater in real time to obtain a first detected temperature.

[0021] A first main control module, configured for outputting a first control signal in accordance with the first detected temperature and targeted temperatures in each stage, wherein the targeted temperatures in the first stage are the first temperature and the second temperature, and the targeted temperature in the second stage is the fifth temperature;

[0022] A first resonance module configured for producing a corresponding first alternating magnetic field in accordance with the first control signal, and the first heater is located within the first alternating magnetic field.

[0023] Preferably, the first resonance module is a first parallel resonance circuit or a first serial resonance circuit.

[0024] Preferably, the second control unit comprises:

A second temperature detecting module, configured for detecting the temperature of the second heater in real time to obtain a second detected temperature;

A second main control module, configured for outputting a second control signal in accordance with the second detected temperature and targeted temperatures in each stage, wherein the targeted temperature in the first stage is the third temperature, and the targeted temperature in the second stage is the fourth temperature;

A second resonance module configured for producing a corresponding second alternating magnetic field in accordance with the second control signal, and the second heater is located within the second alternating magnetic field.

[0025] Preferably, the second resonance module is a second parallel resonance circuit or a second serial resonance circuit.

[0026] The invention also includes a computer program product, comprising a processor which is configured to execute stored computer program to perform the steps of the aerosol forming method mentioned above.

[0027] The invention also includes a storage medium storing therein a computer program which can be executed by a processor to perform the steps of the aerosol forming method mentioned above.

ADVANTAGEOUS EFFECTS

[0028] When the technology of the invention is carried out, in the first stage, the temperature of the first heater is raised to the first temperature (i.e., the highest temperature in the first stage) by the heating control of the first heater, whereby the aerosol forming substrate can be sufficiently preheated to facilitate the formation of aerosol. Then the temperature of the first heater is lowered from the first temperature to the second temperature, whereby the aerosol forming substrate will not be roasted at a too high temperature, whereby occurrence of miscellaneous gas or burnt smell can be inhibited. Simultaneously, in the first stage, by performing the heating control of the second heater to cause the temperature of the second heater to raise to the third temperature, the second part of the aerosol forming substrate can be heated in advance, which facilitates the aerosol forming substrate to generate aerosol in the second stage. In the second stage, by performing the heating control of the second heater to cause the temperature of the second heater to raise to the fourth temperature, and in the same time, by performing the heating control of the first heater to cause the temperature thereof to lower to the fifth temperature, a good taste and aerosol quality during inhalation can be guaranteed.

BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The invention will be further described below in conjunction with accompanying drawings and embodiments. In the drawings:

FIG. 1 is a flow chart of an aerosol forming method in accordance with an embodiment of the invention;

FIG. 2 is a structural diagram of two heaters and a aerosol forming substrate of an aerosol forming device in accordance with an embodiment of the invention;

FIG. 3A is a curve chart of temperature setting of two heaters of an aerosol forming device in accordance with an embodiment of the invention;

FIG. 3B is a curve chart of temperature distribution of two heaters of an aerosol forming device in accordance with an embodiment of the invention;

FIG. 4 is a structural diagram of two heaters of an aerosol forming device in accordance with an embodiment of the invention;

FIG. 5 is a curve chart of temperature distribution of two heaters of an aerosol forming device in accordance with an embodiment of the invention;

FIG. 6 is a curve chart of temperature distribution of two heaters of an aerosol forming device in accordance with an embodiment of the invention;

FIG. 7 is a logic structural diagram of an aerosol forming device in accordance with an embodiment of the invention;

FIG. 8 is a structural diagram of an electrical circuit of a first control unit of an aerosol forming device in accordance with the invention.

EMBODIMENTS OF THE INVENTION

[0030] In cooperation with the drawings of the embodiments, the following is a clear and complete description of the technical scheme of the invention. However, the described embodiments are only a part of embodiments of the invention, rather than all embodiments. Based on the embodiments, other embodiments obtained by those of ordinary skill in the art without creative labouring will fall within the protected scope of the invention.

[0031] FIG. 1 is a flow chart of an aerosol forming method in accordance with an embodiment of the invention. It is first noted that an aerosol forming device has at least two heaters, i.e. including at least a first heater and a second heater for heating an aerosol forming substrate (for example, a cigarette). Correspondingly, the aerosol forming substrate includes a first part and a second part. The first heater is configured for heating the first part, and the second heater is configured for heating the second part. For example, in an embodiment, as shown in Fig. 2, the aerosol forming substrate is a complete piece; that is, its first part 31 is not physically separated from its second part 32. Of course, in other embodiments, the first part 31 and second parts 32 can be two parts separately from each other. A first heater 21 and a second heater 22 are barrel-shaped heaters, which are respectively sleeved on the first part 31 and the second part 32 of the aerosol forming substrate. Of course, in other embodiments, the first heater 21 and the second heater 22 can be heating plates, heating needles, heating rods, heating wires or heating filaments, which are inserted to the first part 31 and the second part 32 of the aerosol forming substrate. The first heater 21 and the second heater 22 can be different portions of a monolithic heater, or two heaters which are physically separated from each other.

[0032] As shown in Fig. 1, the aerosol forming method of this embodiment includes following steps:
Step S10, in a first stage, performing a heating control on a first heater to cause the temperature of the first heater to raise to a first temperature and then lower to a second temperature, and, performing a heating control on a second heater to cause the temperature of the second heater to raise to a third temperature, wherein the third temperature is lower than the second temperature.

[0033] In the step, the temperatures of the first heater and second heater are both raised from a start temperature in the first stage. The start temperature can be room temperature, for example, 25 degrees, 0 degrees, etc..

[0034] Step S20, in a second stage, performing a heating control on the second heater to cause the temperature of the second heater to raise from the third temperature to a fourth temperature, and performing a heating control on the first heater to cause the temperature of the first heater to lower from the second temperature to a fifth temperature, wherein the fourth temperature is higher than the fifth temperature.

[0035] In the technical solution of this embodiment, with reference to Fig. 3A and Fig. 3B, 0~t1 is the first stage, and t1 ~t2 is the second stage. In the first stage (0~t1), the temperature of the first heater is raised to the first temperature T1 (i.e., the highest temperature in the first stage) by the heating control of the first heater, whereby the aerosol forming substrate can be sufficiently preheated, which facilitates formation of aerosol. Then the temperature of the first heater is lowered from the first temperature T1 to the second temperature T2 (T2<T1), whereby the aerosol forming substrate will not be roasted at a too high temperature; thus, occurrence of miscellaneous gas or burnt smell can be inhibited. Simultaneously, in the first stage (0~t1), by the heating control of the second heater to cause the temperature of the second heater to raise to the third temperature T3 (T3 < T2), the second part of the aerosol forming substrate can be heated in advance, which facilitates the second part of the aerosol forming substrate to generate aerosol in the second stage. In the second stage (t1 ~t2), by heating control of the second heater to cause the temperature of the second heater to raise to the fourth temperature, and in the same time, by heating control of the first heater to cause the temperature thereof to lower to the fifth temperature T5 (T5 < T4), a good taste and aerosol quality during inhalation can be guaranteed.

[0036] Furthermore, the first temperature is in the range of 150°C~300°C (inclusive of 150°C and 300°C), the second temperature is in the range of 150°C~300°C (inclusive of 150°C and 300°C), and a difference between the second temperature and the first temperature is in the range of 5°C~ 100°C ((inclusive of 5°C and 100°C). The third temperature is in the range of 50°C~200°C (inclusive of 50°C and 200°C); the fourth temperature is in the range of 150°C~300°C (inclusive of 150°C and 300°C).

[0037] In a specific embodiment, as shown in Fig. 3A and Fig. 3B, the first temperature is 300°C, the second temperature is 240°C, the third temperature is 100°C, the fourth temperature is 290°C, and the fifth temperature is 200°C. Thus, in the first stage, for the first heater, its temperature is raised to 300°C (i.e., the highest temperature in the first stage), whereby the first part of the aerosol forming substrate can be sufficiently preheated to facilitate the formation of aerosol by the first part. Then the temperature of the first heater is lowered to 240°C, whereby the first part will not be roasted at a too high temperature; thus, occurrence of miscellaneous gas or burnt smell can be inhibited. Regarding the second heater, its temperature is raised to 100°C, whereby the second part of the aerosol forming substrate, which is configured for forming aerosol in the second stage, can be heated in advance. In the second stage, regarding the second heater, its temperature is raised to 290°C, whereby the second part can be sufficiently heated to facilitate the formation of aerosol. Regarding the first heater, its temperature is lowered to 200°C, occurrence of miscellaneous gas or burnt smell can be avoided, and a good taste and aerosol quality during inhalation can be guaranteed.

[0038] Furthermore, in an optional embodiment, in Step S10, performing a heating control on the first heater to cause the temperature of the first heater to raise to the first temperature and then lower to second temperature practically includes: performing a heating control on the first heater to cause the temperature of the first heater to raise to the first temperature during a first period of time in the first stage, and during a second period of time in the first stage, cause the temperature of the first heater to lower from the first temperature to the second temperature, or cause the temperature of the first temperature to lower to the second temperature and then maintain at the second temperature, wherein the first period of time is shorter than the second period of time.

[0039] In a specific embodiment, as shown in Fig. 3B, 0~t11 is the first period of time of the first stage, and t11~t1 is the second period of time of the first stage. In the first period of time of the first stage, since the first period of time (for example 10s) is shorter than the second period of time (for example 2 minutes), the temperature of the first heater therefore can be quickly raised to the first temperature T1, whereby the first part of the aerosol forming substrate can be preheated quickly. Thus, the inferiortaste and insufficient aerosol concentration due to insufficient baking of the first part of the aerosol forming substrate at the beginning are avoided. During the second period of time in the second stage, the temperature of the first heater is continuously lowered from the first temperature T1 to the second temperature T2, whereby occurrence of miscellaneous gas or burnt smell due to overheating of the first part can be inhibited.

[0040] In another specific embodiment, as shown in Fig. 3B, 0~t11 is the first period of time of the first stage, and t11~t1 is the second period of time of the first stage. In the first period of time of the first stage, since the first period of time (for example 10s) is shorter than the second period of time (for example 2 minutes), the temperature of the first heater therefore can be quickly raised to the first temperature T1, whereby the first part of the aerosol forming substrate can be preheated quickly. Thus, the inferior taste and insufficient aerosol concentration due to insufficient baking at the beginning are avoided. During the second period of time in the second stage, the temperature of the first heater is lowered from the first temperature T1 to the second temperature T2 during the period t11~t12, and maintains at the second temperature T2 during the period t12~t1, whereby occurrence of miscellaneous gas or burnt smell due to overheating of the first part can be inhibited too.

[0041] Furthermore, in an optional embodiment, in Step S10, the heating control of the second heater to cause the temperature of the second heater to raise to the third temperature includes: during the second period of time in the first stage, performing the heating control on the second heater to cause the temperature of the second heater to raise to the third temperature and then maintain at the third temperature, or to cause the temperature of the second heater to continuously raise to the third temperature.

[0042] In this embodiment, it begins to perform heating control on the second heater in the second period of time during which the temperature of the first heater is continuously lowered from the first temperature T1 to the second temperature T2. For example, as shown in Fig. 3A, from the moment t13 of the second period of time (moment t13 being within the second period of time), the heating control of the second heater is initiated so that its temperature raises to the third temperature T3 first and then remains at the third temperature T3. Thus, occurrence of miscellaneous gas or burnt smell due to the first part of the aerosol forming substrate being heated to a too high temperature can be avoided (since the heat of heating the second part of the aerosol forming substrate from the second heater can also be transferred to the first part). This also prevents the second part from forming aerosol too early, whereby the aerosol forming substrate can be consumed too soon, resulting in that the concentration of the aerosol is too low in the later phase of inhalation. Of course, in other embodiments, the temperature of the second heater can be controlled to continuously raise to the third temperature.

[0043] Regarding the heating curve of the second heater in the first stage, it should be noted that although the temperature of the second heater is raised from the beginning of the first period of time, the raise is due to heat conduction of the first heater and is passive. The raise of temperature during the second period of time is the real raise of temperature due to the active heating of the second heater. For example, as shown in embodiment of Fig. 4, the first heater 21 and the second heater 22 are formed as a monolithic, tubular structure, and the first heater 21 and the second heater 22 are separated from each other by a plurality of holes 23. Of course, in other embodiments, they can be separated from each other by slots, whereby the mutual influence of temperature field between the first heater 21 and the second heater 22 can be minimized. Thus, the independent control of the temperature of the first heater 21 and the second heater can be facilitated. Meanwhile, the relative position between the first heater 21 and the second heater 22 can be more accurately fixed to facilitate manufacturing and assembling.

[0044] Moreover, in an optional embodiment, the performing of heating control with the second heater to cause the temperature of the second heater to raise from the third temperature to the fourth temperature includes: performing heating control on the second heater to cause the temperature of the second heater to raise from the third temperature to the fourth temperature during a third period of time in the second stage, and during a fourth period of time in the second stage, cause the temperature of the second heater to maintain at the fourth temperature, or cause the temperature of the second heater to raise from the fourth temperature to a sixth temperature, wherein the third period of time and the fourth period of time are two periods of time of the second stage divided by a first dividing scheme , and the third period of time is shorter than the fourth period of time.

[0045] In a specific embodiment, as shown in Fig. 5, the second stage (t1~t2) can be divided into a third period of time (t1~t21) and a fourth period of time (t21~t2), wherein the third period of time is shorter than the fourth period of time. The performing of heating control with the second heater in the second stage can cause the temperature to raise from the third temperature T3 to the fourth temperature T4 during the third period of time and maintain at the fourth temperature during the fourth period of time. Since the third period of time is shorter than the fourth period of time, the quick preheating of the second heater can prevent the second part of aerosol forming substrate from forming aerosol with an inferior taste and insufficient concentration due to insufficient baking.

[0046] In a specific embodiment, as shown in Fig. 6, the second stage (t1~t2) can be divided into a third period of time (t1~t21) and a fourth period of time (t21~t2), wherein the third period of time is shorter than the fourth period of time. The performing of heating control with the second heater in the second stage can cause the temperature to raise from the third temperature T3 to the fourth temperature T4 during the third period of time and raise from the fourth temperature T4 to the sixth temperature T6 during the fourth period of time. Since the third period of time is shorter than the fourth period of time, the quick preheating of the second heater can prevent the second part of aerosol forming substrate from forming aerosol with an inferior taste and low aerosol concentration due to insufficient roasting. In the same time, since the temperature of the second heater also raises during the fourth period of time, it can further prevent the inferior taste and low aerosol concentration due to insufficient baking during the following heating process.

[0047] Furthermore, in an optional embodiment, the performing of heating control with the first heater to cause the temperature of the first heater to lower from the second temperature to the fifth temperature includes: performing heating control on the first heater to cause the temperature of the first heater to lower from the second temperature to the fifth temperature during a fifth period of time in the second stage, and during a sixth period of time in the second stage, cause the temperature of the first heater to maintain at the fifth temperature, or, cause the temperature of the first heater to raise from the fifth temperature a seventh temperature, wherein the fifth period of time and the sixth period of time are two periods of time of the second stage divided by a second dividing scheme, and the fifth period of time is shorter than the sixth period of time, and the fourth temperature is higher than the seventh temperature. In addition, the process of the lowering of temperature of the first heater from the second temperature to the fifth temperature can be: lowering with a constant rate, or can be: lowering slowly with a first rate and then lowering quickly with a second rate.

[0048] In a specific embodiment, as shown in FIG. 5, the second stage can be divided by a second dividing scheme into a fifth period of time (t1~t22) and a sixth period of time (t22~ t2), wherein the fifth period of time is shorter than the sixth period of time. Regarding the first heater in the second stage, by performing heating control therewith, the temperature thereof can be lowered from the second temperature T2 to the fifth temperature T5 during the fifth period of time, and maintained at the sixth temperature T6 during the sixth period of time. In this way, the second part of the aerosol forming substrate is prevented from forming miscellaneous gas and burnt smell due to being baked at a too high temperature (because when the first heater heats, heat absorbed by the first part of the aerosol forming substrate will transfer to the second part.)

[0049] In a specific embodiment, as shown in Fig. 6, similarly, the second stage (t1~t2) is divided by a second dividing scheme into a fifth period of time (t1~t22) and a sixth period of time (t22~t2), wherein the fifth period of time is shorter than the sixth period of time. Regarding the first heater in the second stage, by performing heating control therewith, the temperature thereof can be lowered from the second temperature T2 to the fifth temperature T5 during the fifth period of time, and raised from the fifth temperature T5 to the sixth temperature T6 during the sixth period of time. In this way, the second part of the aerosol forming substrate is prevented from forming miscellaneous gas and burnt smell due to being baked at a too high temperature. Besides, it also prevents the aerosol formed by second part of the aerosol forming substrate from having an inferior taste and insufficient concentration due to an insufficient baking thereof, since the temperature of the first heater also raises during the sixth period of time.

[0050] Moreover, in an optional embodiment, electromagnetic heating method is configured to perform the heating control on the first heater, and/or electromagnetic heating method is configured to perform the heating control on the second heater. In addition, the control of the two heaters can be independent control mode or an integral control mode.

[0051] In a specific embodiment, the use of electromagnetic heating method to perform heating control on the first heater specifically includes:

Detecting the temperature of the first heater in real time to obtain a first detected temperature;

Outputting a first control signal in accordance with the first detected temperature and targeted temperatures in each stage, wherein the targeted temperatures in the first stage are the first temperature and the second temperature, and the targeted temperature in the second stage is the fifth temperature;

Producing a corresponding first alternating magnetic field in accordance with the first control signal, and the first heater is located within the first alternating magnetic field.

[0052] Correspondingly, the use of electromagnetic heating method to perform heating control on the second heater specifically includes:

Detecting the temperature of the second heater in real time to obtain a second detected temperature;

Outputting a second control signal in accordance with the second detected temperature and targeted temperatures in each stage, wherein the targeted temperature in the first stage is the third temperature, and the targeted temperature in the second stage is the fourth temperature;

Producing a corresponding second alternating magnetic field in accordance with the second control signal, and the second heater is located within the second alternating magnetic field.

[0053] In the above-mentioned embodiments, surfaces of the first heater and second heater can be respectively mounted with thermistors. Resistences of the thermistors can be calculated by detecting the voltages of the thermistors, thereby to obtain the detected temperatures of the first heater and second heater in real time. Furthermore, two resonance circuits are also provided for respectively producing the first alternating magnetic field and the second alternating magnetic field. Coils of the resonance circuits can produce alternating magnetic fields and the two heaters are respectively located within the alternating magnetic files. The induced eddy current will be generated on surfaces of the two heaters to enable the heaters to generate heat. Besides, by using software algorithm,the main control module controls the oscillation intensity of the resonant circuit according to the temperature detection signal of the two parts detected .

[0054] Of course, the heating manner of the first heater and the second heater to the aerosol forming substrate can be infrared radiation heating mode, resistance heating mode, and so on. It is not limited here.

[0055] Fig. 7 shows a logic, structural diagram of an aerosol forming device in accordance with an embodiment of the invention. The aerosol forming device 100 in accordance with the embodiment includes: a first heater 21, a second heater 22, a first control unit 11, a second control unit 12. In addition, the aerosol forming substrate includes a first part and a second part. The first heater 21 is configured for heating the first part, and the second heater is configured for heating the second part. For example, in a specific embodiment, as shown in Fig. 2, the aerosol forming substrate is monolithic, that is its first part 31 and second part 32 are not physically separated from each other. Certainly, in other embodiments, the first part 31 and the second part 32 can be two parts independently from each other. The first heater 21 and the second heater 22 are barrel-shaped heaters, which are respectively sleeved on the first part 31 and second part 32 of the aerosol forming substrate. Of course, in other embodiments, the first heater 21 and second heater 22 can be heating plates, heating needles, heating rods, heating wires or heating filaments, which are inserted to the first part 31 and second part 32 of the aerosol forming substrate.

[0056] In the embodiment shown in Fig. 7, the first control unit 11 is configured for, in the first stage, performing heating control on the first heater 21 to cause the temperature of the first heater to raise to the first temperature and then lower to the second temperature, and, in the second stage, performing heating control on the first heater to cause the temperature of the first heater to lower from the second temperature to the fifth temperature. The second control unit 12 is configured for, in the first stage, performing heating control on the second heater 22 to cause the temperature of the second heater to raise to the third temperature, and, in the second stage, performing heating control on the second heater 22 to cause the temperature of the second heater to raise from the third temperature to the fourth temperature, wherein the third temperature is lower than the second temperature, and the fourth temperature is higher than the fifth temperature.

[0057] Moreover, the first control unit is configured for, during a first period of time in the first stage, performing heating control on the first heater to cause the temperature of the first heater to raise to the first temperature, and, during a second period of time in the first stage, cause the temperature of the first heater to lower from the first temperature to the second temperature, or cause the temperature of the first heater to lower to the second temperature and then maintain at the second temperature, wherein the first period of time is shorter than the second period of time.

[0058] Furthermore, the second control unit 12 is configured for, during the second period of time in the first stage, performing heating control on the second heater to cause the temperature of the second heater to firstly raise to the third temperature and then maintain at the third temperature, or to cause the temperature of the second heater to continuously raise to the third temperature.

[0059] Furthermore, the second control unit 12 is configured for performing heating control on the second heater to cause the temperature of the second heater, during the third period of time in the second stage, to raise from the third temperature to the fourth temperature, and, during the fourth period of time in the second stage, to maintain at the fourth temperature, or raise from the fourth temperature to the sixth temperature, wherein the third period of time and the fourth period of time are two periods of time obtained by dividing the second stage in according with a first dividing scheme, and, wherein the third period of time is shorter than the fourth period of time.

[0060] Moreover, the first control unit 11 is configured for performing heating control on the first heater to cause the temperature of the first heater to lower from the second temperature to the fifth temperature during a fifth period of time in the second stage, and, during a sixth period of time in the second stage, cause the temperature of the first heater to maintain at the fifth temperature, or, cause the temperature of the first heater to raise from the fifth temperature a seventh temperature, wherein the fifth period of time and the sixth period of time are two periods of time of the second stage divided by a second dividing scheme, the fifth period of time is shorter than the sixth period of time, and the fourth temperature is higher than the seventh temperature.

[0061] Moreover, the first temperature is in the range of 150°C~300°C, the second temperature is in the range of 150°C ~ 300°C, and a difference between the second temperature and the first temperature is in the range of 5°C~100°C; the third temperature is in the range of 50°C-200°C; the fourth temperature is in the range of 150°C~300°C.

[0062] Furthermore, the first control unit 11 includes a first temperature detecting module, a first main control module, and a first resonance module, wherein the first temperature module is configured for detecting the temperature of the first heater in real time to obtain a first detected temperature. The first main control module is configured for outputting a first control signal in accordance with the first detected temperature and targeted temperatures in each stage, wherein the targeted temperatures in the first stage are the first temperature and the second temperature, and the targeted temperature in the second stage is the fifth temperature. The first resonance module is configured for producing a corresponding first alternating magnetic field in accordance with the first control signal, and the first heater is located within the first alternating magnetic field. The first resonance module is, for example, a first parallel resonance circuit.

[0063] Moreover, the second control unit 12 includes a second temperature detecting module, a second main control module and a second resonance module, wherein the second temperature detecting module is configured for detecting the temperature of the second heater in real time to obtain a second detected temperature. The second main control module is configured for outputting a second control signal in accordance with the second detected temperature and targeted temperatures in each stage, wherein the targeted temperature in the first stage is the third temperature, and the targeted temperature in the second stage is the fourth temperature. The second resonance module is configured for producing a corresponding second alternating magnetic field in accordance with the second control signal, and the second heater is located within the second alternating magnetic field. The second resonance module is, for example, a second parallel resonance circuit.

[0064] Of course, in other embodiments, the first resonance module can be a serial resonance circuit. The second resonance module can be a serial resonance circuit.

[0065] Fig. 8 is an electrical circuit diagram of the first control unit of the aerosol forming device of the invention. In the first control unit, a resistor R2 is serially connected with a thermistor RT1 mounted on a surface of the first heater to form the first temperature detecting module. By measuring the voltage value of the thermistor RT1, the resistance value of the thermistor RT1 can be calculated. Thus, the first temperature detection value of the first heating body is obtained, and then sent to the first main control module. In addition, an induction coil L1, a capacitor C1, and a MOS transistor Q1 cooperatively form a mono-transistor, parallel resonance circuit. In work, a battery voltage (BAT+) is applied to the mono-transistor, parallel resonance circuit. The alternating current flows through the induction coil L1. The alternating current causes the induction coil L1 to produce the alternating electromagnetic field. The first heater is located within the alternating electromagnetic field. Due to the hysteresis effect in the first heater, the first heater will generate heat. Furthermore, if the first heater is made of electrically conductive material, the induced eddy current is produced on the surface of the first heater, which causes the first heater to generate heat. By using software algorithm,, the main control module controls the temperature of the first heater to very following the set temperature curve in accordance with the oscillation intensity of the resonant circuit, which is controlled by the first detected temperature.

[0066] It can be understood that the electrical circuit of the second control unit is similar to that shown in Fig. 8. Thus, a detailed description thereof is omitted here.

[0067] The invention also proposes a computer program product including a processor. When the processor executes a stored computer program, the above-mentioned steps of the aerosol forming method is performed.

[0068] It should be understood that in the embodiments of the invention, the processor can be a central processing unit (CPU), other general processors, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), other programmable logic components, discrete gate or transistor logic components, discrete hardware components, etc.. The general processor can be micro-processors, or other regular processors.

[0069] Also, since when the processor executes the computer program, the steps of any aerosol forming method of the invention can be performed, thereby to carry out the advantages afforded by any aerosol forming method provided by the embodiments of the invention. Please refer to the embodiments mentioned above for details, which are omitted here.

[0070] The invention also proposes a storage medium storing therein the computer program. When the computer program is executed by the processor, the steps of the above-mentioned aerosol forming method is carried out.

[0071] It should be understood that the storage medium can include: a USB flash drive, a portable storage device, read-only memory (ROM), a hard disc, or an optical disc which is a computer storage medium and can store therein computer program codes. Furthermore, when the computer program stored in the storage medium is executed, the steps of any aerosol forming method of the invention can be performed, thereby to carry out the advantages afforded by any aerosol forming method provided by the embodiments of the invention. Please refer to the embodiments mentioned above for details, which are omitted here.

[0072] The above embodiments merely illustrate specific implementations of the invention, and are specifically described in detail, but they should not be construed as limitations of the patent scope of the invention. It should be pointed out that those ordinarily skilled in the art can freely combine the above technical features and make some transformations and improvements without departing from the concept of the invention, and all these combinations, transformations and improvements should fall within the protection scope of the invention. Therefore, all equivalent transformations and modifications made according to the scope of the claims of the invention should fall within the scope of the claims of the invention.

Claims

1. An aerosol forming method, characterized by comprising:

in a first stage, performing a heating control on a first heater to cause the temperature of the first heater to raise to a first temperature and then lower to a second temperature, and, performing a heating control on a second heater to cause the temperature of the second heater to raise to a third temperature, wherein the third temperature is lower than the second temperature;

in a second stage, performing a heating control on the second heater to cause the temperature of the second heater to raise from the third temperature to a fourth temperature, and, performing a heating control on the first heater to cause the temperature of the first heater to lower from the second temperature to a fifth temperature, wherein the fourth temperature is higher than the fifth temperature.

2. The aerosol forming method according to Claim 1, characterized in that the performing a heating control on the first heater to cause the temperature of the first heater to raise to the first temperature and then lower to the second temperature, comprises:

performing a heating control on the first heater to cause the temperature of the first heater to raise to the first temperature during a first period of time in the first stage,

and during a second period of time in the first stage, cause the temperature of the first heater to lower continuously from the first temperature to the second temperature, or cause the temperature of the first heater to lower to the second temperature and then maintain at the second temperature, wherein the first period of time is shorter than the second period of time.

3. The aerosol forming method according to Claim 2, characterized in that, the performing a heating control on the second heater to raise the temperature of the second heater to the third temperature, comprises:
during the second period of time in the first stage, performing a heating control on the second heater to cause the temperature of the second heater to raise to the third temperature and then maintain at the third temperature, or cause the temperature of the second heater to raise continuously to the third temperature.

4. The aerosol forming method according to Claim 1, characterized in that, the performing a heating control on the second heater to raise the temperature of the second heater from the third temperature to the fourth temperature, comprises:
performing a heating control on the second heater to cause the temperature of the second heater to raise from the third temperature to the fourth temperature during a third period of time in the second stage, and during a fourth period of time in the second stage, cause the temperature of the second heater to maintain at the fourth temperature, or cause the temperature of the second heater to raise from the fourth temperature to a sixth temperature, wherein the third period of time and the fourth period of time are two periods of time divided by a first dividing scheme, and the third period of time is shorter than the fourth period of time.

5. The aerosol forming method according to Claim 1, characterized in that, the performing a heating control on the first heater to cause the temperature of the first heater to lower from the second temperature to the fifth temperature, comprises:
performing a heating control on the first heater to cause the temperature of the first heater to lower from the second temperature to the fifth temperature during a fifth period of time in the second stage, during a sixth period of time in the second stage, cause the temperature of the first heater to maintain at the fifth temperature, or, cause the temperature of the first heater to raise from the fifth temperature to a seventh temperature, wherein the fifth period of time and the sixth period of time are two periods of time of the second stage divided by a second dividing scheme, the fifth period of time is shorter than the sixth period of time, and the fourth temperature is higher than the seventh temperature.

6. The aerosol forming method according to any one of Claims 1-5, characterized in that the first temperature is in a range of 150°C-300°C, and the second temperature is in a range of 150°C-300°C.

7. The aerosol forming method according to Claim 6, characterized in that a difference between the second temperature and the first temperature is in a range of 5°C-100°C.

8. The aerosol forming method according to any one of Claims 1-5, characterized in that the third temperature is in a range of 50°C-200°C, and the fourth temperature is in a range of 150°C-300°C.

9. The aerosol forming method according to any one of Claims 1-5, characterized in that, the performing a heating control on the first heater, comprises:

using an electromagnetic heating method to perform the heating control on the first heater;

and/or,

the performing a heating control on the second heater, comprises:
using an electromagnetic heating method to perform the heating control on the second heater.

10. An aerosol forming device, characterized by comprising: a first heater, a second heater, a first control unit, and a second control unit, wherein,

the first control unit is configured for, in a first stage, performing a heating control on the first heater to cause the temperature of the first heater to raise to a first temperature and then lower to a second temperature, and, in a second stage, performing a heating control on the first heater to cause the temperature of the first heater to lower from the second temperature to a fifth temperature;

the second control unit is configured for, in a first stage, performing heating control on the second heater to cause the temperature of the second heater to raise to a third temperature, and, in a second stage, performing heating control on the second heater to cause the temperature of the second heater to raise from the third temperature to a fourth temperature, wherein the third temperature is lower than the second temperature, and the fourth temperature is higher than the fifth temperature.

11. The aerosol forming device according to Claim 10, characterized in that the first control unit is configured for performing a heating control on the first heater to cause the temperature of the first heater to raise to the first temperature during a first period of time in the first stage, and during a second period of time in the first stage, cause the temperature of the first heater to lower continuously from the first temperature to the second temperature, or cause the temperature of the first heater to lower to the second temperature and then maintain at the second temperature, wherein the first period of time is shorter than the second period of time.

12. The aerosol forming device according to Claim 11, characterized in that the second control unit is configured for performing a heating control on the second heater during the second period of time in the first stage to cause the temperature of the second heater to raise to the third temperature and then maintain at the third temperature, or to cause the temperature of the second heater to raise continuously to the third temperature.

13. The aerosol forming device according to Claim 10, characterized in that the second control unit is configured for performing a heating control on the second heater during a third period of time in the second stage to cause the temperature of the second heater to raise from the third temperature to the fourth temperature, and during a fourth period of time in the second stage, cause the temperature of the second heater to maintain at the fourth temperature, or cause the temperature of the second heater to raise from the fourth temperature to a sixth temperature, wherein the third period of time and the fourth period of time are two periods of time of the second stage divided by a first dividing scheme , and the third period of time is shorter than the fourth period of time.

14. The aerosol forming device according to Claim 10, characterized in that the first control unit is configured for performing a heating control on the first heater to cause the temperature of the first heater to lower from the second temperature to the fifth temperature during a fifth period of time in the second stage, and during a sixth period of time in the second stage, cause the temperature of the first heater to maintain at the fifth temperature, or, cause the temperature of the first heater to raise from the fifth temperature to a seventh temperature, wherein the fifth period of time and the sixth period of time are two periods of time of the second stage divided by a second dividing scheme, and the fifth period of time is shorter than the sixth period of time, and the fourth temperature is higher than the seventh temperature.

15. The aerosol forming device according to any one of Claims 10-14, characterized in that the first temperature is in a range of 150°C-300°C;

the second temperature is in a range of 150°C-300°C, and a difference between the second temperature and the first temperature is in a range of 5°C-100°C;

the third temperature is in a range of 50°C-200°C;

the fourth temperature is in a rage of 150°C-300°C.

16. The aerosol forming device according to any one of Claims 10-14, characterized in that the first control unit comprises:

a first temperature detecting module, configured for detecting the temperature of the first heater in real time to obtain a first detected temperature;

a first main control module, configured for outputting a first control signal in accordance with the first detected temperature and targeted temperatures in each stage, wherein the targeted temperatures in the first stage are the first temperature and the second temperature, and the targeted temperature in the second stage is the fifth temperature;

a first resonance module configured for producing a corresponding first alternating magnetic field in accordance with the first control signal, and the first heater is located in the first alternating magnetic field.

17. The aerosol forming device according to Claim 16, characterized in that the first resonance module is a first parallel resonance circuit, or a first serial resonance circuit.
The aerosol forming device according to any one of Claims 10-14, characterized in that the second control unit comprises:

a second temperature detecting module, configured for detecting the temperature of the second heater in real time to obtain a second detected temperature;

a second main control module, configured for outputting a second control signal in accordance with the second detected temperature and targeted temperatures in each stage, wherein the targeted temperature in the first stage is the third temperature, and the targeted temperature in the second stage is the fourth temperature;

a second resonance module configured for producing a corresponding second alternating magnetic field in accordance with the second control signal, and the second heater is located in the second alternating magnetic field.

19. The aerosol forming device according to Claim 18, characterized in that the second resonance module is a second parallel resonance circuit or a second serial resonance circuit.

20. A computer program product comprising a processor, characterized in that the processor is configured for executing a computer program stored in the computer program product to perform the aerosol forming method of any one of Claims 1-9.

21. A storage medium, storing therein a computer program, characterized in that when the computer program can be executed by a processor to perform the aerosol forming method of any one of Claims 1-9.

Drawing