Aerosol generation device and vaping detection method thereof
The aerosol generation device uses a heat preservation cylinder and targeted air outlet design to enhance vaping detection accuracy by inducing significant resistance changes in the heating circuit, addressing misjudgment issues in current detection methods.
Patent Information
- Application Number
- PCT/CN2025/083950
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-06-27
- Filing Date
- 2025-03-21
- Publication Date
- 2026-01-02
AI Technical Summary
Current vaping detection methods in aerosol generation devices are prone to misjudgment due to inaccurate temperature sensing, leading to unreliable user experience.
The aerosol generation device incorporates a heat preservation cylinder and a heating circuit design where cold air is directed through a specific air outlet hole to rapidly impact the heating circuit, causing significant resistance changes detectable by a control module, allowing precise vaping action detection.
Enhances the accuracy and reliability of vaping detection by leveraging the temperature coefficient of resistance (TCR) to accurately judge vaping actions based on substantial resistance value changes, thereby improving user experience.
Smart Images

Figure CN2025083950_02012026_PF_FP_ABST
Abstract
Description
Aerosol generation device and vaping detection method thereof
[0001] The present application claims the benefit of Chinese Patent Application No. 202410849641.8, filed on June 27, 2024, titled “Aerosol generation device and vaping detection method thereof” , the contents of which are incorporated herein by reference in their entirety.Technical field
[0002] The application belongs to the technical field of aerosol generation, in particular to an aerosol generation device and a vaping detection method thereof.Background
[0003] The aerosol generation system usually consists of an aerosol generation device and an aerosol generation product. The aerosol generation product is inserted into the aerosol generation device, and the heating module of the aerosol generation device heats the aerosol generation product, so as to generate aerosol for users to inhale. Heating circuit is the key component of the heating module. Generally, the substrate is made of materials with excellent thermal conductivity and stable properties. An air hole is arranged inside the substrate to allow air circulation, and the heating circuit is attached to the substrate. When in use, the heating circuit converts electric energy into heat energy and transmits it to the substrate, the substrate further heats the air, and the heated air heats the aerosol generation product, thereby generating aerosols. In order to ensure that sufficient aerosols can be provided for user when vaping, it is necessary to detect the user's vaping action. Usually, a temperature sensor is installed in the aerosol generation device. The temperature sensor is used to detect the temperature of the aerosol generation product when it is heated, and can determine whether vaping has occurred according to the temperature change detected by the temperature sensor. However, the current vaping detection is prone to misjudgment.
[0004] Application content
[0005] In order to provide users with a good vaping experience, the application proposes an aerosol generation device and a vaping detection method thereof, which has better accuracy and reliability for vaping detection.
[0006] In view of the above technical problems, the embodiment of the application provides an aerosol generation device, which comprises a device body, a heating module and a control module positioned in the device body, wherein the heating module comprises a housing, a heating element for heating an aerosol generation product is arranged in the housing, the housing is provided with a first air inlet hole and an opening, the opening is used for inserting the aerosol generation product; wherein the heating module further comprises a heat preservation cylinder, the heat preservation cylinder is embedded in the housing, and a closed air inlet passage is formed between the heat preservation cylinder and the housing, the air inlet passage is able to communicate with outside via the first air inlet hole, the heat preservation cylinder is provided with a first air outlet hole, and an air inlet side of the first air outlet hole is communicated with the air inlet passage.
[0007] The heating element comprises a substrate and a heating circuit, the heating circuit is arranged on the substrate, and the control module is able to acquire a resistance value of the heating circuit, the substrate is adjacent to an air outlet side of the first air outlet hole, and an orthogonal projection of the first air outlet hole along a direction of the air outlet side is able to be projected onto the substrate.
[0008] Optionally, a projection area of the first air outlet hole projected on the substrate toward the air outlet side at least partially overlaps with an area where the heating circuit is positioned on the substrate.
[0009] Optionally, the heating circuit comprises a first heating segment, a second heating segment and a third heating segment; the second heating segment is connected between the first heating segment and the third heating segment, and the projection area of the first air outlet hole projected on the substrate toward the air outlet side at least partially overlaps with an area where the second heating segment of the heating circuit is positioned on the substrate.
[0010] Optionally, the first air outlet hole is elliptical, and a semi-major axis of the first air outlet hole is arranged in parallel with the second heating segment.
[0011] Optionally, the first air outlet hole is round or elliptical.
[0012] Optionally, a hole area of the first air outlet hole is 1-10mm2.
[0013] Optionally, the substrate is provided with a chamber, a second air inlet hole and a second air outlet hole; the second air inlet hole is communicated with the chamber, the second air outlet hole is communicated with the chamber, and the second air inlet hole and the first air outlet hole are staggered in a horizontal plane.
[0014] Optionally, the substrate comprises a first ceramic body, a second ceramic body and a third ceramic body; the first ceramic body is tubular, the heating circuit is printed on the first ceramic body, and the second ceramic body and the third ceramic body are arranged inside the first ceramic body to form the chamber; the second air inlet hole is provided at a side of the first ceramic body, and the second air outlet hole is provided at a top of the third ceramic body.
[0015] Optionally, the heating module further comprises a fixed bracket arranged in the housing, and the fixed bracket has a receiving chamber for the aerosol generation product to be inserted; a downstream of the receiving chamber is communicated with the opening, a upstream of the receiving chamber is provided with the substrate, and the second air outlet hole is communicated with the receiving chamber.
[0016] Optionally, the heat preservation cylinder is made of aluminum or stainless steel, and comprises a main body part and an annular part, and a top of the main body part abuts against a top of the housing; the annular part is positioned at a bottom of the main body part and abuts against a side wall of the housing to form the air inlet passage.
[0017] An interior of the main body part runs through in an axial direction, the main body part is arranged around the fixed bracket, and a preheating passage is formed between the main body part and the fixed bracket; the first air outlet hole is arranged in the main body part, and the first air outlet hole is communicated with the preheating passage.
[0018] Optionally, the heating module further comprises a base, the base is installed at a bottom of the housing to form a cavity for accommodating the heat preservation cylinder, the fixed bracket and the heating element, and a rubber sealing ring is arranged between the base and the housing.
[0019] Optionally, the fixed bracket comprises a first fixed member, a second fixed member and a third fixed member, and the first fixed member is installed on the base, the second fixed member is installed between the first fixed member and the third fixed member, a top of the third fixed member abuts against an inside of the top the housing, and the rubber sealing ring is arranged between the third fixed member and the heat preservation cylinder.
[0020] Another embodiment of the application further provides a vaping detection method, which is applied to the aerosol generation device described above. The vaping detection method comprises the following steps:
[0021] acquiring, by a control module, a resistance value of a heating circuit of a heating module in real time;
[0022] determining whether the resistance value of the heating circuit changes;
[0023] when the resistance value of the heating circuit changes, acquiring a first resistance value when a change occurs, and acquiring a second resistance value when the change ends;
[0024] performing calculation to obtain temperature change data based on the first resistance value and the second resistance value;
[0025] determining whether that temperature change data accord with preset change data; and
[0026] if yes, it is determined that a vaping action occurs.
[0027] According to the aerosol generation device provided by the embodiment of the application, when the heating element of the heating module is working, the air heated by the heating element will heat the aerosol generation product, allowing the aerosol generation product to generate aerosol. When users inhale aerosol through the aerosol generation product, the hot air inside the heating module would be sucked away, and meanwhile, negative pressure is generated inside the heating module, so that cold air outside can enter the air inlet passage via the first air inlet hole in housing. Then the cold air in the air inlet passage is exhausted by the first air outlet hole on the heat preservation cylinder, and then heated by the heating element to heat the aerosol generation product for the user to vape next ntime. In the above process, cold air enters the space filled with inhaled hot air in the heating module from the outside, and the heat preservation cylinder has the function of thermal insulation, the temperature of cold air entering from the air inlet passage is low. The substrate of the heating element is adjacent to the air outlet side of the first air outlet hole, the cold air in the air inlet passage is exhausted together via the first air outlet hole, and the cold air quickly impacts on the substrate. The same volume of cold air acting on the area where the orthogonal projection of the first air outlet hole located on the substrate can take away most of the heat of the substrate more quickly than acting on the entire outer surface of the substrate, which makes the substrate have a great temperature change. The heat of the substrate is provided by the heating circuit, so that the temperature of the heating circuit changes greatly. According to the temperature coefficient of resistance (TCR) , the resistance of the heating circuit changes greatly, and the control module can accurately judge whether a vaping action occurs based on the obtained resistance change of the heating circuit.
[0028] The vaping detection method provided by the embodiment of the application is applied to the aerosol generation device as described above, enabling accurate data of resistance change range to be obtained, thereby improving the accuracy and reliability for vaping detection judgment and providing better vaping experience for users.Brief description of drawings
[0029] The application will be further explained with the attached drawings and embodiment.
[0030] Fig. 1 is an exploded view of the structure of the aerosol generation device provided by an embodiment of the present application.
[0031] Fig. 2 is a schematic cross-sectional view of the aerosol generation device provided by an embodiment of the present application.
[0032] Fig. 3 is a structural schematic view of three sides of the heating element of the aerosol generation device provided by an embodiment of the present application.
[0033] Fig. 4 is a flowchart of the vaping detection method provided by an embodiment of the present application.
[0034] Detailed description of preferred embodiments
[0035] In order to make the to-be-solved technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be described in further detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described here are only used to illustrate the application, rather than to limit the application.
[0036] Please refer to Fig. 1, Fig. 2 and Fig. 3. An embodiment of the application provides an aerosol generation device, which comprises a device body (not shown) , a heating module 100 and a control module (not shown) positioned in the device body. The heating module 100 comprises a housing 10, a heating element 20 for heating an aerosol generation product (not shown) is arranged in the housing 10, and the housing 10 has a first air inlet hole 11 and an opening 12, the opening 12 is used for inserting the aerosol generation product. The heating module 100 further comprises a heat preservation cylinder 30 embedded in the housing 10; a sealed air inlet passage 60 is formed between the heat preservation cylinder 30 and the housing 10, and the air inlet passage 60 can communicate with the outside via the first air inlet hole 11. The heat preservation cylinder 30 is provided with a first air outlet hole 31, and the air inlet side of the first air outlet hole 31 is communicated with the air inlet passage 60.
[0037] The heating element 20 comprises a substrate 21 and a heating circuit 22. The heating circuit 22 is arranged on the substrate 21, and the control module can acquire a resistance value of the heating circuit 22, the substrate 21 is adjacent to the air outlet side of the first air outlet hole 31, and the orthogonal projection of the first air outlet hole 31 along the air outlet side direction can be projected on the substrate 21.
[0038] Understandably, a power supply module (not shown) is also installed in the aerosol generation device body of the embodiment of the application, and the control module controls the power supply module to supply power to the heating module 100. The heating module 100 is controlled by the control module to work, and the modules are electrically connected.
[0039] According to the aerosol generation device provided by the embodiment of the application, when the heating element 20 of the heating module 100 is working, the air heated by the heating element 20 will heat the aerosol generation product, allowing the aerosol generation product to generate aerosol. When a user inhales aerosol through the aerosol generation product, the hot air inside the heating module 100 would be sucked away. While a part of heat is taken away, negative pressure is generated inside the heating module 100, thus the outside cold air can enter the air inlet passage 60 via the first air inlet hole 11 of the housing 10. Then, the cold air in the air inlet passage 60 is exhausted via the first air outlet hole 31 on the heat preservation cylinder 30, and then heated by the heating element 20 to heat the aerosol generation product for the user to vape next time.
[0040] In the above process, cold air enters the space filled with inhaled hot air in the heating module 100 from the outside, and the heat preservation cylinder 30 has the function of thermal insulation, thus the temperature of cold air entering via the air inlet passage 60 is low. The substrate 21 of the heating element 20 is adjacent to the air outlet side of the first air outlet hole 31, and the cold air in the air inlet passage 60 is exhausted together via the first air outlet hole 31, the cold air rapidly impacts on the substrate 21. The same volume of cold air acting on the area where the orthogonal projection of the first air outlet hole 31 is located on the substrate 21 can take away most of the heat of the substrate 21 more quickly than acting on the entire outer surface of the substrate 21, so that the temperature of the substrate 21 changes greatly. The heat of the substrate 21 is provided by the heating circuit 22, enabling the heating circuit 22 to have a large temperature change. According to TCR (Temperature coefficient of resistance) , the resistance of the heating circuit 22 changes greatly, and the control module can accurately judge whether a vaping action occurs based on the obtained resistance change of the heating circuit 22.
[0041] Further, on the basis of the above embodiment, the projection area of the first air outlet hole 31 projected on the substrate 21 toward the air outlet side direction of an embodiment of the present application at least partially overlaps with the area where the heating circuit 22 is positioned on the substrate 21.
[0042] Understandably, since the projection area of the first air outlet hole 31 projected on the substrate 21 toward the air outlet side direction at least partially overlapps with the area where the heating circuit 22 is positioned on the substrate 21, i.e., the cold air discharged from the first air outlet hole 31 will contact the heating circuit 22, and the cold air will quickly impact on the heating circuit 22, which can quickly take away most of the heat of the heating circuit 22, thus greatly changing the resistance of the heating circuit 22, further improving the accuracy and reliability of the data used by the control module to judge the vaping action.
[0043] Further, please refer to Fig. 3. On the basis of the above embodiment, the heating circuit 22 of an embodiment of the present application includes a first heating segment 221, a second heating segment 222 and a third heating segment 223. The first heating segment 221 and the third heating segment 223 are both S-shaped, and the second heating segment 222 is connected between the first heating segment 221 and the third heating segment 223. The first heating segment 221 and the third heating segment 223 are symmetrically arranged, and the projection area of the first air outlet hole 31 projected on the substrate 21 toward the air outlet side direction at least partially overlaps with the area where the second heating segment 222 of the heating circuit 22 is positioned on the substrate 21.
[0044] Understandably, because of the heating characteristics of line, the heating efficiency of the second heating segment 222 in the central position is higher than that of the first heating segment 221 and third heating segment 223, and the temperature of the second heating segment 22 is higher. The cold air contacting the second heating segment 222 of the heating circuit 22 will cause the temperature of the second heating segment 222 to change greatly, and the range of resistance change of the heating circuit 22 detected by the control module will be large accordingly, thus further improving the accuracy and reliability of the data used by the control module to judge the vaping action. The first heating segment 221 and the third heating segment 223 can be provided with positive and negative electrodes and be electrically connected with the power supply module and control module.
[0045] Understandably, in some embodiments, the heating circuit is printed on the outer surface of the substrate 21, allowing the cold air discharged from the first air outlet hole 31 to directly contact the heating circuit 22 on the substrate 21, thereby causing the temperature change of the heating circuit 22. In other embodiments, the heating circuit is printed inside the substrate 21 and close to the outer surface of the substrate 21, so that the cold air discharged from the first air outlet hole 31 does not directly contact the heating circuit 22, while the heat of the heating circuit 22 can be conducted to the cold air through the substrate 21.
[0046] Further, the hole area of the first air outlet hole 31 in some embodiments of the present application is 1-10mm 2. The first air outlet hole 31 of some embodiments of the present application is round or elliptical. In other embodiments, the first air outlet hole 31 may also be in the shape of a triangle, a rectangle, a polygon, etc.
[0047] Understandably, in the process of vaping, the air permeability inside the heating module 100 will affect the draw resistance, thus affecting the user's experience when vaping. The hole area of the first air outlet hole 31 in the embodiment of the present application ranges from 1 mm2 to 10 mm2. When it is less than 1 mm2, the air permeability is poor, which will make it difficult for the user to vape; when it is higher than 10 mm2, excess cold air will enter the interior, which will affect the heating efficiency of the heating module 100.
[0048] Understandably, under the condition that the hole area of the first air outlet hole 31 is fixed, designing the first air outlet hole 31 as a circle or an ellipse will have the following benefits: the projection area of the first air outlet hole 31 projected on the substrate 21 along the air outlet direction overlaps with the area where the second heating segment 222 of the heating circuit 22 is located on the substrate 21 as much as possible. Preferably, the first air outlet hole 31 is elliptical, and the semi-major axis of the first air outlet hole 31 is arranged in parallel with the second heating segment 222 of the heating circuit 22, so that as much cold air as possible can contact the second heating segment 222, the temperature change of the heating circuit 22 is increased, and the accuracy and reliability of vaping detection are improved. Moreover, when the first air outlet hole 31 is elliptical and the semi-major axis is arranged in parallel with the second heating segment 222 of the heating circuit 22, even ifmechanical errors occur during the installation of the heating circuit 22, it can also make the projection area of the first air outlet hole 31 overlap with the area where the first heating segment 221 is located, thus ensuring that the second heating segment 222 is exposed to cold air. Specifically, in an embodiment, the second heating segment 222 of the heating circuit 22 is completely within the projection area of the first air outlet hole 31 on the substrate 21. In other embodiments, the projection area of the first air outlet hole 31 on the substrate 31 is completely within the area where the heating circuit 22 is located..
[0049] Please refer to Fig. 2 and Fig. 3. The substrate 21 of the embodiment of the application is provided with a chamber 214, a second air inlet hole 215 and a second air outlet hole 216, and the second air inlet hole 215 is communicated with the chamber 214; the second air outlet hole 216 is communicated with the chamber 214, and the second air inlet hole 215 and the first air outlet hole 31 are staggered.
[0050] Specifically, the substrate 21 comprises a first ceramic body 211, a second ceramic body 212 and a third ceramic body 213. The first ceramic body 211 is tubular, the heating circuit 22 is printed on the first ceramic body 211, and the second ceramic body 212 and the third ceramic body 213 are arranged inside the first ceramic body 211 to form a chamber 214. The second air inlet hole 215 is provided on the sidewall of the first ceramic body 211, the second air outlet hole 216 is provided at the top of the third ceramic body 213, and the first air outlet hole 31 and the second air inlet hole 215 are staggered in the horizontal plane. Understandably, after the cold air is exhausted via the first air outlet hole 31 of the air inlet passage 60, it will contact the outside of the first ceramic body 211, then enter the chamber 214 via the second air inlet hole 215 on the first ceramic body 211. When the first air outlet hole 31 and the second air inlet hole 215 are staggered, the cold air discharged from the first air outlet hole 31 will not directly enter the chamber 214, thus ensuring that the cold air can fully cool the substrate 21 and / or the heating circuit 22 and take away the heat. In addition, the process of cooling the substrate 21 and the heating circuit 22 by cold air is also the process of transferring the heat of the substrate 21 and the heating circuit 22 to the cold air, which can have a certain preheating effect on the cold air, thus improving the heating efficiency of the air. After the cold air enters the chamber 214, it can be fully heated in the chamber 214, and then discharged from the second air outlet hole 216 to heat the inserted aerosol generation product.
[0051] Further, referring to Fig. 2, the heating module 100 of the embodiment of the present application further comprises a fixed bracket 40 arranged in the housing, and the fixed bracket 40 is provided with a receiving chamber 70 into which the aerosol generation product can be inserted. The downstream of the receiving chamber 70 communicates with the opening 12, the upstream of the receiving chamber 70 is provided with the substrate 21, and the second air outlet hole 216 communicates with the receiving chamber 70.
[0052] Specifically, the heating module 100 of the embodiment of the application further comprises a base 50 installed at the bottom of the housing 10 to form a cavity for accommodating the heat preservation cylinder 30, the fixed bracket 40 and the heating element 20, and a rubber sealing ring is arranged between the base 50 and the housing 10. The fixed bracket 40 includes a first fixed member 41, asecond fixed member 42 and a third fixed member 43. The first fixed member 41 is installed on the base 50, the second fixed member 42 is installed between the first fixed member 41 and the third fixed member 43, and the top of the third fixed member 43 abuts against the inside of the top of the housing 10. A rubber sealing ring is arranged between the third fixed member 43 and the heat preservation cylinder 30, the first ceramic body 211 is fixed on the first fixed member 41, and the side of the first fixed member 41 is perforated to expose the second air inlet hole 215 on the internal first ceramic body 211. The first fixed member 41, second fixed member 42 and third fixed member 43 are all tubular to form a receiving chamber 70 communicating with the opening 12 on the housing 10, and aerosol generation product can be inserted into the receiving chamber 70 through the opening 12 until it abuts against the top of the substrate 21.
[0053] Further, the heat preservation cylinder 30 includes a main body part 32, the top of which abuts against the top of the housing 10. The annular part 33 is positioned at the bottom of the main body part 32 and abuts against the side wall of the housing 10 to form the air inlet passage 60. The inside of the main body part 32 runs through in the axial direction. The main body part 32 is arranged around the fixed bracket 40, and a preheating passage 34 is formed between the main body part 32 and the fixed bracket 40. The first air outlet hole 31 is arranged in the main body part 32, and the first air outlet hole 31 is communicated with the preheating passage 34.
[0054] Understandably, in one aspect, the annular part 33 of the heat preservation cylinder 30 is used to embed the heat preservation cylinder 30 and the housing 10; in another aspect, it is used to form a closed air inlet passage 60. The first air outlet hole 31 is arranged on the main body part 32, allowing the cold air discharged from the side of the first air outlet hole 31 to directly contact the substrate 21 after entering the preheating passage 34.
[0055] Understandably, the heat preservation cylinder 30 can be made of heat insulation materials such as aluminum and stainless steel. Preferably, the heat preservation cylinder 30 is made of stainless steel, and the heat conductivity of aluminum is better than that of stainless steel. Therefore, when the heat preservation cylinder 30 is made of stainless steel, its heat preservation effect is better, and the temperature change of the heating circuit 22 inside it is also great after it is contacted with cold air, which can further improve the accuracy and reliability of the vaping detection.
[0056] Please refer to Fig. 5. An embodiment of the application further provides a vaping detection method, which is applied to the aerosol generation device as described above. The vaping detection method comprises the following steps:
[0057] S101: acquiring, by a control module, a resistance value of a heating circuit of a heating module in real time.
[0058] Understandably, the control module can acquire and monitor the resistance of the heating circuit using current detection method or voltage detection method.
[0059] S102: determining whether the resistance value of the heating circuit changes.
[0060] When the resistance value of the heating circuit changes, step S103 is executed: acquiring a first resistance value when a change occurs, and acquiring a second resistance value when the change ends; when the resistance value of the heating circuit does not change, step S101 is executed.
[0061] Understandably, after the preheating of the heating module, the air flow inside the heating module is slow, and the temperature remains relatively stable. When the user vapes, the air flow inside the heating module is accelerated, and the hot air will be quickly exhausted to take away a lot of heat, which can cause the resistance value of the heating circuit to change. The control module obtains the first resistance value and second resistance value before and after the change. In the above process, the control module will improve the heating efficiency of the heating circuit until the temperature of the heating module remains relatively stable again.
[0062] S104: performing calculation to obtain temperature change data based on the first resistance value and the second resistance value.
[0063] It should be noted that during the user's vaping process, the temperature change in the heating module is usually 0-10℃. According to the calculation in the prior art, the change of the resistance value converted in the above temperature range is very small, and it needs to be calculated with a coefficient, which makes the change of the resistance value in the actual calculation of the control module very small. Therefore, according to the first resistance value and the second resistance value, the temperature change data will be converted with large value, which will be beneficial to the accuracy of calculation. In the embodiment of the application, the temperature of the heating circuit of the aerosol generation device changes greatly, and the resistance value obtained by the control module changes greatly, thus the accuracy of calculation can be improved by the larger value in the calculation process.
[0064] S105: determining whether that temperature change data accord with preset change data.
[0065] If yes, step S106 is executed: it is determined that a vaping action occurs; if not, step S101 is executed.
[0066] Specifically, the range of the preset change data in the embodiment of the application is 5℃≤T≤∞. When the temperature change data is greater than or equal to 5℃, it is determined that the vaping action has occurred, and the number of times of vaping is recorded. This can prevent the heating circuit's resistance value from changing due to accidental vaping or normal air flow, which would lead to an improper operation of the control module.
[0067] The above are merely the preferred embodiments of the aerosol generation device of this application, and are not intended to limit the application. Any modification, equivalent substitution and improvement made within the spirit and principle of this application shall be included in the protection scope of this application.
Claims
1.An aerosol generation device, comprising a device body, a heating module and a control module positioned in the device body, wherein the heating module comprises a housing, a heating element for heating an aerosol generation product is arranged in the housing, the housing is provided with a first air inlet hole and an opening, the opening is used for inserting the aerosol generation product; wherein the heating module further comprises a heat preservation cylinder, the heat preservation cylinder is embedded in the housing, and a closed air inlet passage is formed between the heat preservation cylinder and the housing, the air inlet passage is able to communicate with outside via the first air inlet hole, the heat preservation cylinder is provided with a first air outlet hole, and an air inlet side of the first air outlet hole is communicated with the air inlet passage; andthe heating element comprises a substrate and a heating circuit, the heating circuit is arranged on the substrate, and the control module is able to acquire a resistance value of the heating circuit, the substrate is adjacent to an air outlet side of the first air outlet hole, and an orthogonal projection of the first air outlet hole along a direction of the air outlet side is able to be projected onto the substrate.2.The aerosol generation device of claim 1, wherein a projection area of the first air outlet hole projected on the substrate toward the air outlet side at least partially overlaps with an area where the heating circuit is positioned on the substrate.3.The aerosol generation device of claim 2, wherein the heating circuit comprises a first heating segment, a second heating segment and a third heating segment; the second heating segment is connected between the first heating segment and the third heating segment, and the projection area of the first air outlet hole projected on the substrate toward the air outlet side at least partially overlaps with an area where the second heating segment of the heating circuit is positioned on the substrate.4.The aerosol generation device of claim 3, wherein the first air outlet hole is elliptical, and a semi-major axis of the first air outlet hole is arranged in parallel with the second heating segment.5.The aerosol generation device of claim 1, wherein the first air outlet hole is round or elliptical.6.The aerosol generation device of claim 1, wherein a hole area of the first air outlet hole is 1-10mm2.7.The aerosol generation device of claim 1, wherein the substrate is provided with a chamber, a second air inlet hole and a second air outlet hole; the second air inlet hole is communicated with the chamber, the second air outlet hole is communicated with the chamber, and the second air inlet hole and the first air outlet hole are staggered in a horizontal plane.8.The aerosol generation device of claim 7, wherein the substrate comprises a first ceramic body, a second ceramic body and a third ceramic body; the first ceramic body is tubular, the heating circuit is printed on the first ceramic body, and the second ceramic body and the third ceramic body are arranged inside the first ceramic body to form the chamber; the second air inlet hole is provided at a side of the first ceramic body, and the second air outlet hole is provided at a top of the third ceramic body.9.The aerosol generation device of claim 7, wherein the heating module further comprises a fixed bracket arranged in the housing, and the fixed bracket has a receiving chamber for the aerosol generation product to be inserted; a downstream of the receiving chamber is communicated with the opening, aupstream of the receiving chamber is provided with the substrate, and the second air outlet hole is communicated with the receiving chamber.10.The aerosol generation device of claim 9, wherein the heat preservation cylinder is made of aluminum or stainless steel, and comprises a main body part and an annular part, and a top of the main body part abuts against a top of the housing; the annular part is positioned at a bottom of the main body part and abuts against a side wall of the housing to form the air inlet passage; andan interior of the main body part runs through in an axial direction, the main body part is arranged around the fixed bracket, and a preheating passage is formed between the main body part and the fixed bracket; the first air outlet hole is arranged in the main body part, and the first air outlet hole is communicated with the preheating passage.11.The aerosol generation device of claim 9, wherein the heating module further comprises a base, the base is installed at a bottom of the housing to form a cavity for accommodating the heat preservation cylinder, the fixed bracket and the heating element, and a rubber sealing ring is arranged between the base and the housing.12.The aerosol generation device of claim 11, wherein the fixed bracket comprises a first fixed member, a second fixed member and a third fixed member, and the first fixed member is installed on the base, the second fixed member is installed between the first fixed member and the third fixed member, a top of the third fixed member abuts against an inside of the top the housing, and the rubber sealing ring is arranged between the third fixed member and the heat preservation cylinder.13.A vaping detection method, applied to the aerosol generation device of any one of claims 1-12, wherein the vaping detection method comprises the following steps:acquiring, by a control module, a resistance value of a heating circuit of a heating module in real time;determining whether the resistance value of the heating circuit changes;when the resistance value of the heating circuit changes, acquiring a first resistance value when a change occurs, and acquiring a second resistance value when the change ends;performing calculation to obtain temperature change data based on the first resistance value and the second resistance value;determining whether that temperature change data accord with preset change data; andif yes, it is determined that a vaping action occurs.
Citation Information
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