Electronic atomization device and heating method, liquid content detection method

Abstract

The present application provides an electronic atomization device, a heating method, and a liquid content detection method. The electronic atomization device includes: a first conductor, a second conductor, and a control unit; the first conductor is used to accommodate an aerosol-generating product; the second conductor is spaced apart from the first conductor; the control unit is used to obtain electrical parameters between the first conductor and the second conductor when the first conductor and the second conductor are electrically connected by the aerosol-generating product, obtain the liquid content of the aerosol-generating product based on the electrical parameters, and control a heating element to heat the aerosol-generating product based on the liquid content of the aerosol-generating product. By obtaining the liquid content of the aerosol-generating product and heating the aerosol-generating product based on the liquid content of the aerosol-generating product, the present application can effectively improve the user experience.

Description

Technical Field

[0001] The present application relates to the field of electronic atomization devices, and in particular to an electronic atomization device, a heating method, and a liquid content detection method. Background Art

[0002] Electronic atomization devices can be used to heat atomized aerosol-generating products. For example, a solid matrix of plant leaves with a specific aroma can be baked in a heating-not-burning manner so that the solid matrix of the leaves is baked to form an aerosol. Furthermore, the plant leaves can be added with ingredients such as flavors and fragrances, which can be baked and mixed into the aerosol at the same time to give the aerosol the desired aroma.

[0003] Currently, aerosol-generating products are typically packaged in boxes of multiple units. Once a box of aerosol-generating products is opened, it typically takes two to three days or even longer to be consumed.

[0004] However, after the packaging box of the aerosol generating product is opened, the aerosol generating product in the packaging box will absorb moisture in the air, and as time goes by, the water content of the aerosol generating product will increase, causing it to become damp, resulting in poor heating effect or a small amount of aerosol atomization generated, affecting the user experience. Summary of the Invention

[0005] The present application provides an electronic atomization device and a heating method, as well as a liquid content detection method, which can obtain the liquid content of an aerosol-generating product and control the heating of the aerosol-generating product according to the liquid content of the aerosol-generating product to ensure the atomization effect.

[0006] In order to solve the above technical problems, the first technical solution provided in this application is: to provide an electronic atomization device, including a first conductor, a second conductor and a control unit; the first conductor is used to accommodate an aerosol-generating product; the second conductor is spaced apart from the first conductor; the control unit is used to obtain the electrical parameters between the first conductor and the second conductor when the first conductor and the second conductor are electrically connected by the aerosol-generating product, obtain the liquid content of the aerosol-generating product according to the electrical parameters, and control the heating element to heat the aerosol-generating product according to the liquid content of the aerosol-generating product.

[0007] In which, the control unit also includes a sampling unit, which is used to collect electrical parameters between the first conductor and the second conductor when the first conductor and the second conductor are electrically connected by the aerosol generating article; the sampling unit is also used to collect initial electrical parameters between the first conductor and the second conductor when the first conductor and the second conductor are not electrically connected by the aerosol generating article.

[0008] The control unit is further configured to obtain a first difference between the electrical parameter and the initial electrical parameter, and compare the difference with a preset threshold to obtain a second difference, and obtain the liquid content of the aerosol generating product based on the second difference.

[0009] The control unit controls the heating element to heat the aerosol-generating article based on the liquid content of the aerosol-generating article.

[0010] The control unit selects a preset heating curve that matches the liquid content of the aerosol-generating article from a pre-stored set of preset heating curves, wherein different preset heating curves in the set of multiple preset heating curves have different preheating times and / or temperatures for the aerosol-generating article.

[0011] The control unit compensates the pre-stored preset heating curve according to the liquid content of the aerosol-generating article, so as to change the time and / or temperature at which the preset heating curve preheats the aerosol-generating article.

[0012] The first conductor is a hollow column and serves as the heating element.

[0013] Wherein, the electronic atomization device further includes an electromagnetic coil arranged around the first conductor; the first conductor is used to generate heat through electromagnetic induction.

[0014] Among them, the electronic atomization device also includes an insulating member, which is arranged between the first conductor and the second conductor, and is used to separate the first conductor and the second conductor; the insulating member has a through hole, and the aerosol generating product can pass through the first conductor and the insulating member and be electrically connected to the second conductor.

[0015] The electrical parameters include capacitance and / or resistance.

[0016] To solve the above-mentioned technical problems, the second technical solution provided in the present application is: providing a method for detecting the liquid content of an aerosol-generating product, comprising: arranging a first conductor and a second conductor at intervals; electrically connecting the first conductor and the second conductor through the aerosol-generating product; obtaining electrical parameters between the first conductor and the second conductor; and obtaining the liquid content of the aerosol-generating product based on the electrical parameters.

[0017] The step of obtaining the liquid content of the aerosol generating article based on the electrical parameter includes: obtaining a first difference between the electrical parameter and an initial electrical parameter, wherein the initial electrical parameter is an electrical parameter when the first conductor and the second conductor are not electrically connected by the aerosol generating article; comparing the difference with a preset threshold to obtain a second difference; and obtaining the liquid content of the aerosol generating article based on the second difference.

[0018] Wherein, before the step of electrically connecting the first conductor and the second conductor through the aerosol generating article, the step further includes: collecting the initial electrical parameters between the first conductor and the second conductor.

[0019] The electrical parameters include capacitance and / or resistance.

[0020] In order to solve the above technical problems, the third technical solution provided in this application is: to provide a heating method for an electronic atomization device to heat an aerosol-generating product, including: obtaining the liquid content of the aerosol-generating product; and controlling the heating element to heat the aerosol-generating product according to the liquid content of the aerosol-generating product.

[0021] The step of obtaining the liquid content of the aerosol-generating article includes: collecting electrical parameters between a first conductor and a second conductor arranged at intervals in response to electrical conduction between the aerosol-generating article; and obtaining the liquid content of the aerosol-generating article based on the electrical parameters.

[0022] The step of obtaining the liquid content of the aerosol generating article based on the electrical parameter includes: obtaining a first difference between the electrical parameter and an initial electrical parameter, wherein the initial electrical parameter is an electrical parameter when the first conductor and the second conductor are not electrically connected by the aerosol generating article; comparing the difference with a preset threshold to obtain a second difference; and obtaining the liquid content of the aerosol generating article based on the second difference.

[0023] Among them, the step of controlling the heating element to heat the aerosol-generating article according to the liquid content of the aerosol-generating article includes: selecting a preset heating curve that matches the liquid content of the aerosol-generating article from pre-stored preset heating curves, wherein different preset heating curves have different preheating times and / or temperatures for the aerosol-generating article; and the preset heating curve controls the heating element to increase or decrease the preheating time of the aerosol-generating article.

[0024] The step of controlling the heating element to heat the aerosol-generating article according to the liquid content of the aerosol-generating article includes compensating a pre-stored preset heating curve according to the liquid content of the aerosol-generating article to change the time and / or temperature at which the preset heating curve preheats the aerosol-generating article.

[0025] The electrical parameters include capacitance and / or resistance.

[0026] The beneficial effects of the present application are different from those of the prior art. The electronic atomization device, heating method, and liquid content detection method provided by the present application include a first conductor, a second conductor, and a control unit. The first conductor is used to accommodate the aerosol-generating product. The second conductor is spaced apart from the first conductor. The control unit is used to obtain electrical parameters between the first conductor and the second conductor when the first conductor and the second conductor are electrically connected by the aerosol-generating product, obtain the liquid content of the aerosol-generating product based on the electrical parameters, and control the heating element to heat the aerosol-generating product based on the liquid content of the aerosol-generating product. By obtaining the liquid content of the aerosol-generating product and heating the aerosol-generating product based on the liquid content of the aerosol-generating product, the user experience can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive work, among which:

[0028] Figure 1 A schematic diagram of the structure of an electronic atomization device provided in one embodiment of the present application;

[0029] Figure 2 A schematic diagram of the functional modules of an electronic atomization device provided in one embodiment of the present application;

[0030] Figure 3 A schematic structural diagram of a first conductor, a second conductor, and an aerosol generating article provided in one embodiment of the present application;

[0031] Figure 4 A graph showing the relationship between the dielectric constant and time of an aerosol-generating product opened for one day according to an embodiment of the present application;

[0032] Figure 5 A graph showing the relationship between the dielectric constant and time of a newly opened aerosol-generating article provided in one embodiment of the present application;

[0033] Figure 6A control unit provided in one embodiment of the present application outputs different preset heating curves according to the liquid content of the aerosol-generating article;

[0034] Figure 7 A schematic flow chart of a method for detecting liquid content in an aerosol-generating article provided in one embodiment of the present application;

[0035] Figure 8 A schematic flow chart of a method for detecting liquid content in an aerosol-generating article according to another embodiment of the present application;

[0036] Figure 9 Provided for an embodiment of this application Figure 5 A flow chart of the method for implementing step S14 in FIG.

[0037] Figure 10 A schematic flow chart of a method for controlling heating of an electronic atomization device provided in one embodiment of the present application;

[0038] Figure 11 Provided for an embodiment of this application Figure 10 A flowchart of a method for implementing step S31 in FIG.

[0039] Figure 12 Provided for an embodiment of this application Figure 11 A flowchart of a method for implementing step S312 in FIG.

[0040] Figure 13 Provided for an embodiment of this application Figure 10 Flow chart of the implementation method of step S32 in . DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0042] Figure 1 A schematic diagram of the structure of an electronic atomization device provided in one embodiment of the present application; Figure 2 A schematic diagram of the functional modules of an electronic atomization device provided in one embodiment of the present application; Figure 3 A schematic structural diagram of a first conductor, a second conductor, and an aerosol generating article provided in one embodiment of the present application; Figure 4 A graph showing the relationship between the dielectric constant and time of an aerosol-generating product opened for one day according to an embodiment of the present application; Figure 5A graph showing the relationship between the dielectric constant and time of a newly opened aerosol-generating article provided in one embodiment of the present application; Figure 6 The control unit provided in one embodiment of the present application outputs different preset heating curves according to the liquid content of the aerosol-generating article.

[0043] See also Figure 1 The electronic atomizer device 20 is used to heat and atomize the aerosol-generating article 10. For example, a solid substrate of plant leaves with a specific aroma, when heated, generates an aerosol with a distinct aroma and high user satisfaction. The electronic atomizer device 20 bakes the solid substrate of plant leaves with a specific aroma in a heating-without-combustion manner to form an aerosol. The electronic atomizer device 20 of the present application can be used in various fields, such as medical treatment, beauty treatment, or recreational smoking.

[0044] In one embodiment, the electronic atomization device 20 is fixedly or detachably connected to the aerosol-generating article 10 and is used to provide heating energy to the aerosol-generating article 10 to heat the aerosol-generating substrate stored in the aerosol-generating article 10 .

[0045] The inventors of the present application have discovered that conventional aerosol-generating products 10 are typically packaged individually or in a box of multiple products before use. After the aerosol-generating products 10 are unpacked, the aerosol-generating matrix within the box absorbs moisture from the air. Therefore, the later an aerosol-generating product 10 is used, the higher its moisture content. For example, for a single-packaged aerosol-generating product 10, the longer the wait time between unpacking and use, the higher the moisture content within the aerosol-generating product 10. Alternatively, the longer the wait time between puffing and the next puff, the higher the moisture content within the aerosol-generating product 10. For aerosol-generating products 10 packaged in a box of multiple products, the moisture content of aerosol-generating products 10 used later after the box is unpacked will be higher than that of aerosol-generating products 10 used earlier. Or due to user error, the aerosol generating product 10 contains other liquids, causing the electronic atomization heating device to fail to heat and atomize the aerosol generating product 10 to reach the preset temperature, resulting in a reduction in the amount of aerosol atomization generated in the aerosol generating product 10 and affecting the user experience.

[0046] Therefore, the present application provides an electronic atomization device 20, see Figure 2The electronic atomization device 20 includes a heating unit 21, a power supply unit 22, and a control unit 23. The aerosol-generating article 10 is housed in the heating unit 21. The power supply unit 22 is used to provide heating energy to the heating unit 21, so that the heating unit 21 heats and atomizes the aerosol-generating article 10. The control unit 23 is used to obtain the liquid content of the aerosol-generating article 10 in the heating unit 21 and, based on the obtained liquid content of the aerosol-generating article 10, control the power output from the power supply unit 22 to the heating unit 21 to heat the aerosol-generating article 10.

[0047] In one embodiment, the control unit 23 further includes a sampling unit 24, which is used to detect electrical parameters of the heating unit 21 and the aerosol generating article 10. The control unit 23 further obtains the liquid content of the aerosol generating article 10 based on the electrical parameters detected by the sampling unit 23.

[0048] See also Figure 3 , the electronic atomization device 20 further includes a first conductor 25 and a second conductor 26, and the first conductor 25 and the second conductor 26 are electrically connected to the sampling unit 24, respectively. When the aerosol generating article 10 is inserted into the electronic atomization device 20, the first conductor 25 and the second conductor 26 are in contact with the aerosol generating article 10, respectively, and serve as electrodes for the sampling unit 24 to collect electrical parameters at both ends of the aerosol generating article 10. In one embodiment, the first conductor 25 is used to accommodate the aerosol generating article 10, and the second conductor 26 is spaced apart from the first conductor 25. When the aerosol generating article 10 is not inserted into the electronic atomization device 20, the first conductor 25 and the second conductor 26 are insulated from each other. The aerosol generating article 10 is conductive. When the aerosol generating article 10 is inserted into the electronic atomization device 20, it is electrically connected to the first conductor 25 and the second conductor 26, respectively, so that the first conductor 25 and the second conductor 26 are electrically conductive through the aerosol generating article 10.

[0049] The sampling unit 24 is used to apply a voltage between the first conductor 25 and the second conductor 26, and collect the initial electrical parameters between the first conductor 25 and the second conductor 26 when the first conductor 25 and the second conductor 26 are not electrically connected by the aerosol generating article 10; and collect the electrical parameters between the first conductor 25 and the second conductor 26 when the first conductor 25 and the second conductor 26 are electrically connected by the aerosol generating article 10.

[0050] The electrical parameter is the capacitance value and / or the resistance value between the first conductor 25 and the second conductor 26 .

[0051] The control unit 23 is configured to obtain the liquid content of the aerosol-generating article 10 based on the electrical parameters detected by the sampling unit 24 , and control the heating element to heat the aerosol-generating article 10 based on the liquid content of the aerosol-generating article 10 .

[0052] In one embodiment, the first conductor 25 is a hollow cylindrical structure, such as a cylinder, and is connected to the sampling unit 24. The second conductor 26 can be plate-shaped or block-shaped, serving as a detection base and connected to the sampling unit 24. The first and second conductors 25, 26 can be made of metal, such as stainless steel. In one embodiment, the first conductor 25 is made of metal and is designed to induce heat in a magnetic field; the second conductor 26 is made of conductive carbon or conductive ceramic to prevent uneven heating of the aerosol-generating article 10 caused by induced heat in the magnetic field.

[0053] When the aerosol-generating article 10 is not inserted into the electronic atomization device 20, the first conductor 25 and the second conductor 26 cannot form an electrical signal loop due to the spacing between them. At this time, the sampling unit 24 marks the electrical parameters between the first conductor 25 and the second conductor 26 as the initial electrical parameters. When the aerosol-generating article 10 is inserted into the electronic atomization device 20, the aerosol-generating article 10 fully contacts the first conductor 25 and electrically connects the first and second conductors 25, changing the capacitance and resistance between the first and second conductors 25, 26. The sampling unit 24 then again samples the electrical parameters between the first and second conductors 25, 26. The control unit 23 compares the initial electrical parameters collected by the sampling unit 24 with the electrical parameters after the first and second conductors 25, 26 are electrically connected. The control unit 23 then compares the initial electrical parameters collected by the sampling unit 24 with the electrical parameters after the first and second conductors 25, 26 are electrically connected. A first difference between the two values ​​is obtained through algorithm filtering. The difference is then compared to a preset threshold to obtain a second difference. Based on the second difference, the liquid content of the aerosol-generating article 10 can be determined by a table lookup or calculation. The preset threshold value and the second difference value are obtained by table lookup and the corresponding liquid content of the aerosol generating article 10 is obtained through experimental testing and pre-stored in the control unit 23 .

[0054] The first conductor 25 and the second conductor 26 are equivalent to a transceiver for capacitance sensing and resistance measurement, and transmit and receive capacitance sensing signals and resistance change signals.

[0055] In one embodiment, the heating unit 21 further includes an insulating member 27 disposed between the first conductor 25 and the second conductor 26 to separate the first conductor 25 and the second conductor 26. The insulating member 27 has a through hole, allowing the aerosol-generating article 10 to pass through the first conductor 25 and the insulating member 27 and be electrically connected to the second conductor 26. In one embodiment, the insulating member 27 is an annular member. The first conductor 25 is disposed on the top of the insulating member 27 and is coaxial with the insulating member 27. The second conductor 26 is disposed on the bottom of the insulating member 27 and covers the bottom of the insulating member 27. The second conductor 26 also has an air inlet (not shown) that communicates with the interior of the insulating member 27.

[0056] In one embodiment, the insulating member 27 is an annular body with a flange on its inner wall. The upper surface of the flange abuts the bottom end of the first conductor 25, and the outer wall of the first conductor 25 abuts the inner wall of the insulating member 27. The second conductor 26 is disposed on the lower surface of the flange and covers the bottom of the insulating member 27. The first conductor 25, the second conductor 26, and the insulating member 27 can be interference-fitted or bonded to simplify the assembly process of the electronic atomization device.

[0057] In one embodiment, the heating unit 21 is electromagnetically heated. Specifically, the first conductor 25 also serves as a heating element. The heating unit 21 further includes an electromagnetic coil disposed around the first conductor 25. When powered, the first conductor 25 generates heat through electromagnetic induction to heat the atomized aerosol-generating article 10.

[0058] In another embodiment, the heating unit 21 is a resistive heater, and the heating unit 21 is an independently arranged heating element. The heating element can be a central needle-shaped or central sheet-shaped heating element, which is arranged on the second conductor 26 and is used to be inserted into the aerosol generating product 10 to heat the atomized aerosol generating product 10.

[0059] In one embodiment, the electronic atomization device 20 further includes a detection unit (not shown) for detecting whether an aerosol-generating article 10 is inserted into the electronic atomization device 20. When the aerosol-generating article 10 is detected to be inserted into the electronic atomization device 20, the sampling unit 24 and the control unit 23 collect and obtain the liquid content of the aerosol-generating article 10. In some optional embodiments, the sampling unit 24 can be used as a detection unit. For example, the sampling unit 24 always applies a voltage between the first conductor 25 and the second conductor 26 to collect initial electrical parameters and electrical parameters after the first conductor 25 and the second conductor 26 are electrically conductive. The electrical parameters are sent to the control unit 23 for calculation to obtain the liquid content of the aerosol-generating article 10. When it is detected that the first conductor 25 and the second conductor 26 change from being electrically isolated to being electrically conductive, it is determined that the aerosol-generating article 10 has been inserted into the electronic atomization device 20. This ensures that the liquid content detection is initiated each time a new aerosol-generating article 10 is replaced. In another optional embodiment, the detection unit may be a light sensor disposed on the inner side wall of the insulating member 27 to detect whether the aerosol-generating article 10 is inserted into the electronic atomization device 20 by optical sensing; or the detection unit may be a pressure sensor disposed on the second conductor 26 to detect whether the aerosol-generating article 10 is inserted into the electronic atomization device 20 by pressure sensing. The sampling unit 24 may also begin applying a voltage between the first conductor 25 and the second conductor 26 when the detection unit detects that the aerosol-generating article 10 is inserted into the electronic atomization device 20, collect electrical parameters after the first conductor 25 and the second conductor 26 are electrically conductive, and transmit the collected electrical parameters to the control unit 23. The control unit 23 compares the pre-stored initial electrical parameters with the electrical parameters after the first conductor 25 and the second conductor 26 are electrically conductive to obtain the liquid content of the aerosol-generating article 10. The specific implementation method can be selected according to actual needs and is not limited here.

[0060] If the same aerosol-generating article 10 is used for an extended period without removing the electronic atomizer 20, it will also absorb moisture over time. Therefore, in this application, the detection unit is further configured to determine the time interval between the last puff signal and the last puff signal after detecting the user's puff signal. If the time interval exceeds a preset time threshold, the sampling unit 24 and control unit 23 re-sample and obtain the liquid content of the aerosol-generating article 10. The preset time threshold can be 4 hours, 8 hours, or 24 hours, depending on the specific situation. If the local climate is humid, the preset time threshold can be appropriately reduced; if the local climate is dry, the preset time threshold can be appropriately increased.

[0061] Among them, the control unit 23 controls the heating unit 21 to heat the aerosol generating product 10 according to the liquid content of the aerosol generating product 10. The relevant data can be obtained through advance experiments and pre-stored in the control unit 23. Specifically, under normal circumstances, the time for the electronic atomization device 20 to preheat the aerosol generating product 10 is generally 15-25 seconds, and the preheating temperature is 240-250 degrees Celsius. According to the heating voltage and the heating resistance, the total power for preheating a newly opened aerosol generating product 10, that is, a product that has not absorbed moisture, can be calculated.

[0062]

[0063] Table 1. Power requirements for various preheating temperatures of aerosol generating products

[0064] As shown in Table 1, the heating element is equivalent to a thermistor, the initial resistance of the heating element is 0.92Ω, and the actual resistance of the heating element changes with the change of the heating temperature.

[0065] However, after being opened, the aerosol generating product 10 absorbs moisture, and the weight of a single aerosol generating product 10 increases. The energy absorbed by the additional moisture evaporation and the power consumption can be calculated based on the specific heat capacity of water and the heat absorbed by the evaporation of moisture.

[0066] Opening time unit New Kaifeng Kaifeng 1 day 20 weights g 10.9567 11.3034 Weight per piece g 0.547835 0.56517 Water absorption g 0 0.017335 Specific heat of water J / g*℃ 4.2 4.2 25-100℃ heating and heat absorption J 0 5.460525 latent heat J / g 2256 2256 Evaporation heat absorption J 0 39.10776 Specific heat capacity of water vapor J / g*℃ 1.85 1.85 100-110℃ heating and heat absorption J 0 0.3206975 Total heat absorption J 0 44.8889825

[0067] Table 2. Heat absorbed and power consumed by water evaporation in aerosol-generating articles

[0068] As shown in Table 2, the boiling point of water is 100 degrees Celsius. Therefore, after the aerosol generating article 10 that absorbs moisture is preheated to 100 degrees Celsius, the liquid content of the aerosol generating article 10 will approach 0. After further heating, the heat absorbed by the evaporation of the liquid and the power consumption will also be basically 0.

[0069] See also Figure 4 and Figure 5 After the aerosol generating article 10 is inserted into the first conductor 25, the sampling unit 24 detects the electrical parameters of the aerosol generating article 10. Figure 4 As shown) and newly opened (as Figure 5The dielectric constants of the aerosol-generating articles 10 (shown in the figure) differ significantly, indicating significantly different liquid contents. Specifically, before the aerosol-generating article is inserted into the first conductor 25, the control unit 23 calibrates the current potential data as the baseline potential data, as shown by line B in the figure. After the aerosol-generating article is inserted into the first conductor 25, the potential data changes, as shown by line A in the figure. The control unit determines the liquid content in the aerosol-generating article 10 by determining the relative change between lines A and B. Experiments are also conducted to determine the required heat compensation or heating curve for aerosol-generating articles 10 with different liquid contents. The control unit 23 obtains the liquid content in the aerosol-generating article 10 by pre-stored relevant experimental parameters and, based on the relevant electrical parameters detected by the sampling unit 24, controls the heating element to heat the aerosol-generating article 10 according to the liquid content.

[0070] Specifically, the control unit 23 calculates and compares the liquid content of the aerosol-generating article 10. In one embodiment, the control unit 23 includes an MCU (Microcontroller Unit). The MCU receives electrical parameters fed back by the sampling unit 24, determines the liquid content of the aerosol-generating article 10, obtains a preset heating curve that matches the liquid content of the aerosol-generating article based on the liquid content of the aerosol-generating article 10, and controls the heating element to heat the aerosol-generating article 10.

[0071] In one embodiment, see Figure 6 The control unit 23 pre-stores a set of preset heating curves corresponding to different liquid contents in the aerosol-generating article 10. The control unit 23 selects a preset heating curve that matches the liquid content of the current aerosol-generating article 10 from the pre-stored set of preset heating curves. Different preset heating curves in the set of preset heating curves have different preheating times and / or temperatures for the aerosol-generating article 10.

[0072] For example, when the liquid content of the aerosol-generating article 10 is zero or below a threshold, the electronic atomization device 20 preheats the aerosol-generating article 10 for 20 seconds at a preheating temperature of 250 degrees Celsius, and the control unit 23 outputs a standard heating curve. When the liquid content of the aerosol-generating article 10 is above the threshold, the control unit 23 outputs a heating curve that, compared to the standard heating curve, preheats the aerosol-generating article 10 for a longer time, such as 23 seconds or 25 seconds; or preheats the aerosol-generating article 10 to a higher temperature, such as 255 degrees Celsius or 260 degrees Celsius; or a combination of the two, increasing the preheating temperature and preheating time of the aerosol-generating article 10 so that the preheating temperature of the aerosol-generating article 10 reaches the target temperature. In one embodiment, multiple threshold intervals can be set, and different heating curves can be pre-stored for different threshold intervals. The corresponding heating curve is selected based on the threshold interval corresponding to the liquid content of the aerosol-generating article 10.

[0073] Of course, the standard heating curve may also be a heating curve for a certain liquid content of the aerosol-generating article 10, such as a heating curve for a liquid saturated state. When the liquid content of the aerosol-generating article 10 is lower than the saturated value, the control unit 23 may output a heating curve that preheats the aerosol-generating article 10 with a shorter time or a lower preheating temperature than the standard heating curve. This is not limited here.

[0074] In another embodiment, the control unit 23 may compensate a pre-stored preset heating curve based on the liquid content of the aerosol-generating article 10 to alter the preheating time and / or temperature of the aerosol-generating article 10 according to the preset heating curve. For example, the control unit 23 may store a preset heating curve corresponding to a certain value of the liquid content of the aerosol-generating article 10. After obtaining the liquid content of the aerosol-generating article 10, the control unit 23 performs logical calculations on the preset heating curve to obtain and output a compensated heating curve to increase or decrease the preheating time or preheating temperature of the aerosol-generating article 10, thereby heating the aerosol-generating article 10 to the preset temperature. Specifically, the control unit 23 performs compensation on the preset heating curve before outputting the heating curve. It will be appreciated that this method requires pre-storing a table or relationship between the liquid content of the aerosol-generating article 10 and the compensation value, and performing compensation based on the compensation value corresponding to the liquid content of the aerosol-generating article 10.

[0075] The electronic atomization device 20 provided in the present application detects the liquid content of the aerosol generating product 10 before heating the aerosol generating product 10, and outputs a corresponding heating curve according to the liquid content of the aerosol generating product 10. It can fully heat aerosol generating products 10 with different liquid contents, thereby effectively improving the user experience.

[0076] See also Figure 7 , is a flow chart of a method for detecting liquid content in an aerosol-generating article provided in one embodiment of the present application, specifically comprising:

[0077] Step S11: space the first conductor and the second conductor apart.

[0078] Specifically, the first conductor and the second conductor are spaced apart to isolate the conductivity between the first conductor and the second conductor.

[0079] Step S12: electrically connecting the first conductor and the second conductor via the aerosol-generating article.

[0080] Among them, the aerosol generating product is conductive. When the aerosol generating product is inserted into the electronic atomization device, the aerosol generating product is in full contact with the first conductor, and the first conductor and the second conductor are electrically connected. The first conductor and the second conductor are equivalent to a transceiver for capacitance sensing and resistance measurement, which transmits and receives capacitance sensing signals and resistance change signals.

[0081] Step S13: Acquire electrical parameters between the first conductor and the second conductor.

[0082] Specifically, when the first conductor and the second conductor are electrically connected, the capacitance and resistance between the first conductor and the second conductor are changed, and the sampling unit collects electrical parameters between the first conductor and the second conductor.

[0083] Step S14: obtaining the liquid content of the aerosol generating product according to the electrical parameters.

[0084] Specifically, the control unit obtains the liquid content of the aerosol generating product according to the obtained electrical parameters, and controls the output power to the heating unit to heat the aerosol generating product.

[0085] See also Figure 8 , is a flow chart of a method for detecting liquid content in an aerosol generating product provided in another embodiment of the present application, and Figure 5 The method shown is different in that, before step S12: electrically connecting the first conductor and the second conductor via the aerosol-generating article, it further comprises:

[0086] Step S11a: collecting initial electrical parameters between the first conductor and the second conductor.

[0087] Specifically, the first conductor and the second conductor cannot form an electrical signal loop due to the spacing between them. In this case, the sampling unit marks the electrical parameters between the first conductor and the second conductor as initial electrical parameters. The electrical parameters include capacitance and / or resistance. The sampling unit marks the capacitance sensing signal as C1 and the resistance sensing signal as R1.

[0088] See also Figure 9 , provided in one embodiment of the present application Figure 7 Schematic diagram of the process of implementing step S14 in FIG. , step S14 specifically includes:

[0089] Step S141: obtaining a first difference between an electrical parameter and an initial electrical parameter.

[0090] The initial electrical parameters are electrical parameters when the first conductor and the second conductor are not electrically connected by the aerosol-generating article. Specifically, the sampling unit collects the initial electrical parameters when the first conductor and the second conductor are not electrically connected and the electrical parameters after the first conductor and the second conductor are electrically connected, and sends them to the control unit. The control unit compares the initial electrical parameters collected by the sampling unit with the electrical parameters after the first conductor and the second conductor are electrically connected, and obtains a first difference between the two through algorithm filtering.

[0091] Step S142: Compare the first difference with a preset threshold to obtain a second difference.

[0092] Specifically, the control unit again determines the difference between the first difference and a preset threshold pre-stored in the control unit to obtain a second difference.

[0093] Step S143: Obtaining the liquid content of the aerosol-generating article according to the second difference.

[0094] Specifically, the liquid content of the aerosol generating article is obtained by table lookup or calculation based on the second difference. The liquid content of the aerosol generating article 10 corresponding to the second difference is obtained through experimental testing and pre-stored in the control unit.

[0095] The method for detecting the liquid content in an aerosol-generating article provided in the present application collects initial electrical parameters when the first conductor and the second conductor are not electrically connected, and compares the electrical parameters after the first conductor and the second conductor are electrically connected through the aerosol-generating article. The liquid content in the aerosol-generating article can be determined by comparing the initial electrical parameters. The detection method is simple and highly reliable.

[0096] See also Figure 10 , is a flow chart of a method for controlling heating of an electronic atomization device provided in one embodiment of the present application, specifically including:

[0097] Step S31: Obtaining the liquid content of the aerosol-generating product.

[0098] Specifically, before the electronic atomization device heats the aerosol-generating article, the liquid content of the aerosol-generating article is obtained.

[0099] Step S32: controlling the heating element to heat the aerosol-generating article according to the liquid content of the aerosol-generating article.

[0100] Specifically, the control unit in the electronic atomization device obtains a preset heating curve that matches the liquid content of the aerosol generating product according to the liquid content of the aerosol generating product, and controls the heating element to heat the aerosol generating product.

[0101] See also Figure 11 , provided in one embodiment of the present application Figure 10 Schematic diagram of the process of implementing step S31 in FIG. , step S31 specifically includes:

[0102] Step S311 : In response to the first conductor and the second conductor being electrically connected by the aerosol-generating article, electrical parameters between the first conductor and the second conductor are collected.

[0103] Specifically, when the aerosol-generating article is inserted into the electronic atomization device, the aerosol-generating article is in full contact with the first conductor, and the first conductor and the second conductor are electrically connected. The sampling unit in the electronic atomization device applies a voltage to the first conductor and the second conductor and collects electrical parameters between the first conductor and the second conductor. The electrical parameters include capacitance and / or resistance.

[0104] Step S312: Obtaining the liquid content of the aerosol generating product according to the electrical parameters.

[0105] Specifically, the control unit is connected to the sampling unit, and the control unit obtains the liquid content of the aerosol generating product according to the electrical parameters collected by the sampling unit.

[0106] See also Figure 12 , provided in one embodiment of the present application Figure 11 Flow chart of the implementation method of step S312 in FIG. , step S312 specifically includes:

[0107] Step S313: obtaining a first difference between the electrical parameter and the initial electrical parameter.

[0108] The initial electrical parameters are those when there is no electrical conduction between the first conductor and the second conductor via the aerosol-generating article. Specifically, when no aerosol-generating article is inserted into the electronic atomization device, the first conductor and the second conductor cannot form an electrical signal loop due to the spacing. In this case, the sampling unit marks the electrical parameters between the first conductor and the second conductor as the initial electrical parameters.

[0109] Furthermore, the sampling unit sends the collected initial electrical parameters and the electrical parameters after the first conductor and the second conductor are electrically connected to the control unit. The control unit compares the initial electrical parameters collected by the sampling unit with the electrical parameters after the first conductor and the second conductor are electrically connected, and obtains a first difference between the two through algorithm filtering.

[0110] Step S314: Compare the first difference with a preset threshold to obtain a second difference.

[0111] Specifically, the control unit again determines the difference between the first difference and a preset threshold pre-stored in the control unit to obtain a second difference.

[0112] Step S315: Obtaining the liquid content of the aerosol-generating article according to the second difference.

[0113] Specifically, the liquid content of the aerosol generating article is obtained by table lookup or calculation based on the second difference. The liquid content of the aerosol generating article 10 corresponding to the second difference is obtained through experimental testing and pre-stored in the control unit.

[0114] See also Figure 13 , provided in one embodiment of the present application Figure 10 Schematic diagram of the process of implementing step S32 in FIG. , step S32 specifically includes:

[0115] Step S321: selecting a preset heating curve that matches the liquid content of the aerosol-generating article from a pre-stored set of preset heating curves.

[0116] Different preset heating curves in the preset heating curve set preheat the aerosol-generating article at different times and / or temperatures. Specifically, the control unit pre-stores preset heating curve sets corresponding to different liquid contents in the aerosol-generating article, and each preset heating curve set preheats the aerosol-generating article via the heating element at different times and / or temperatures. The control unit may select a preset heating curve from the pre-stored preset heating curve set that matches the liquid content of the current aerosol-generating article to heat the aerosol-generating article.

[0117] Step S322: Controlling the heating element according to the preset heating curve to increase or decrease the preheating time of the aerosol-generating article.

[0118] For example, when the liquid content of the aerosol-generating article is zero, the electronic atomization device preheats the aerosol-generating article for 20 seconds at a preheating temperature of 250 degrees Celsius, and the preset heating curve obtained by the control unit is a standard heating curve. However, when the liquid content of the aerosol-generating article is higher, the preset heating curve obtained by the control unit may use a longer preheating time for the aerosol-generating article, such as 23 seconds or 25 seconds, compared to the standard heating curve; or a higher preheating temperature, such as 255 degrees Celsius or 260 degrees Celsius; or a combination of the two, increasing the preheating temperature and preheating time for the aerosol-generating article to ensure that the preheating temperature of the aerosol-generating article reaches the target temperature.

[0119] Of course, the standard heating curve can also be a heating curve when the liquid content of the aerosol generating product is a certain value. When the liquid content of the aerosol generating product is lower than this value, the control unit can obtain a heating curve with a shorter preheating time or a lower preheating temperature for the aerosol generating product relative to the standard heating curve.

[0120] In another embodiment, different from the above steps S321-S322, step S32 includes: compensating the pre-stored preset heating curve according to the liquid content of the aerosol-generating article to change the time and / or temperature of the preset heating curve for preheating the aerosol-generating article.

[0121] Specifically, the control unit stores a preset heating curve corresponding to a certain value of the liquid content of the aerosol-generating article. After obtaining the liquid content of the aerosol-generating article, the control unit performs logical calculations on the preset heating curve to obtain and output a compensated heating curve, thereby increasing or decreasing the preheating time or preheating temperature of the aerosol-generating article, thereby allowing the aerosol-generating article to be heated to the preset temperature. The control unit performs compensation on the preset heating curve before outputting the heating curve.

[0122] The heating method of the electronic atomization device provided in the present application can output different heating curves for the heating element according to the liquid content of the aerosol-generating product, so as to increase or decrease the preheating time and / or preheating temperature of the aerosol-generating product, so that the aerosol-generating product can be heated to a preset temperature, thereby improving the user experience.

[0123] The above is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An electronic atomization device, characterized in that: include: a first conductor for receiving the aerosol-generating article; a second conductor, spaced apart from the first conductor; a control unit, configured to, when the first conductor and the second conductor are electrically connected to each other by the aerosol-generating article, obtain electrical parameters between the first conductor and the second conductor, obtain a liquid content of the aerosol-generating article based on the electrical parameters, and control a heating element to heat the aerosol-generating article based on the liquid content of the aerosol-generating article; wherein the control unit selects a preset heating curve that matches the liquid content of the aerosol-generating article from a pre-stored set of preset heating curves; different preset heating curves in the set of preset heating curves preheat the aerosol-generating article at different times and / or temperatures; wherein, when the liquid content of the aerosol-generating article is higher than a threshold value, the heating curve output by the control unit preheats the aerosol-generating article for a longer time and / or at a higher temperature than a standard heating curve; The standard heating curve is a heating curve when the liquid content of the aerosol generating product is a certain value.

2. The electronic atomization device according to claim 1, characterized in that The control unit also includes a sampling unit, which is used to collect electrical parameters between the first conductor and the second conductor when the first conductor and the second conductor are electrically connected by the aerosol generating article; the sampling unit is also used to collect initial electrical parameters between the first conductor and the second conductor when the first conductor and the second conductor are not electrically connected by the aerosol generating article.

3. The electronic atomization device according to claim 2, characterized in that The control unit is further configured to obtain a first difference between the electrical parameter and the initial electrical parameter, compare the first difference with a preset threshold to obtain a second difference, and obtain the liquid content of the aerosol generating article based on the second difference.

4. The electronic atomization device according to claim 1, characterized in that The first conductor is a hollow cylindrical body and serves as the heating element.

5. The electronic atomization device according to claim 4, characterized in that: The electronic atomization device further includes an electromagnetic coil disposed around the first conductor; the first conductor is configured to generate heat through electromagnetic induction.

6. The electronic atomization device according to claim 4, characterized in that The electronic atomization device also includes an insulating member, which is arranged between the first conductor and the second conductor and is used to separate the first conductor and the second conductor; the insulating member has a through hole, and the aerosol generating product can pass through the first conductor and the insulating member and be electrically connected to the second conductor.

7. The electronic atomization device according to claim 1, characterized in that The electrical parameters include capacitance and / or resistance.

8. A method for detecting liquid content, applied to the electronic atomization device according to any one of claims 1 to 7, for detecting the liquid content of an aerosol-generating product, characterized in that: include: Disposing the first conductor and the second conductor spaced apart; placing the first conductor in electrical communication with the second conductor via the aerosol-generating article; obtaining electrical parameters between the first conductor and the second conductor; The liquid content of the aerosol-generating article is obtained based on the electrical parameter.

9. The detection method according to claim 8, characterized in that The step of obtaining the liquid content of the aerosol-generating article according to the electrical parameter comprises: obtaining a first difference between the electrical parameter and an initial electrical parameter, wherein the initial electrical parameter is an electrical parameter when the first conductor and the second conductor are not electrically connected by the aerosol-generating article; Comparing the first difference with a preset threshold to obtain a second difference; The liquid content of the aerosol-generating article is obtained based on the second difference.

10. The detection method according to claim 9, characterized in that: Before the step of electrically connecting the first conductor to the second conductor via the aerosol-generating article, the method further comprises: The initial electrical parameters between the first conductor and the second conductor are collected.

11. A heating method for an electronic atomization device, characterized in that: include: obtaining the liquid content of the aerosol-generating article; controlling a heating element to heat the aerosol-generating article based on the liquid content of the aerosol-generating article; The step of controlling a heating element to heat the aerosol-generating article according to the liquid content of the aerosol-generating article comprises: selecting a preset heating curve from a set of pre-stored preset heating curves that matches the liquid content of the aerosol-generating article, wherein different preset heating curves in the set of preset heating curves preheat the aerosol-generating article for different times and / or temperatures; wherein, when the liquid content of the aerosol-generating article is higher than a threshold value, the heating curve output by the control unit preheats the aerosol-generating article for a longer time and / or at a higher temperature than a standard heating curve; The standard heating curve is a heating curve when the liquid content of the aerosol generating product is a certain value.

12. The heating method according to claim 11, characterized in that The step of obtaining the liquid content of the aerosol-generating article comprises: In response to the aerosol-generating article electrically conducting a first conductor and a second conductor disposed apart from each other, collecting an electrical parameter between the first conductor and the second conductor; The liquid content of the aerosol-generating article is obtained based on the electrical parameter.

13. The heating method according to claim 12, characterized in that: The step of obtaining the liquid content of the aerosol-generating article according to the electrical parameter comprises: obtaining a first difference between the electrical parameter and an initial electrical parameter, wherein the initial electrical parameter is an electrical parameter when the first conductor and the second conductor are not electrically connected by the aerosol-generating article; Comparing the first difference with a preset threshold to obtain a second difference; The liquid content of the aerosol-generating article is obtained based on the second difference.

14. The heating method according to claim 12, characterized in that: The electrical parameters include capacitance and / or resistance.

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