Method and device for optimizing airway structure of electronic atomization equipment, medium and equipment

Abstract

The invention is suitable for the technical field of electronic atomization equipment, and provides an air channel structure optimization method and device of electronic atomization equipment, a medium and equipment. According to the air channel structure optimization method of the electronic atomization equipment, computational fluid dynamics (CFD) simulation analysis is conducted on the air channel structure of the electronic atomization equipment, and the air channel structure of the electronic atomization equipment is optimized; a CFD simulation analysis result is obtained; based on a CFD simulation analysis result, determining flow velocity distribution information of a near-atomization surface area of a central radial section of a heating sheet of the electronic atomization equipment; and optimizing the air passage structure of the electronic atomization equipment according to the flow velocity distribution information of the near-atomization surface area of the central radial section of the heating sheet. The technical problem that the atomization quality of the electronic atomization equipment is difficult to improve due to the fact that an existing electronic atomization equipment airway design lacks airway quality judgment standards can be solved.

Description

Technical Field

[0001] The present application is applicable to the technical field of electronic atomization equipment, and more specifically, to an airway structure optimization method, device, medium and equipment for electronic atomization equipment. Background Art

[0002] In the field of electronic atomization equipment, airway design is directly related to the atomization taste and atomization life, so airway design is crucial.

[0003] However, the airway of the electronic atomizer device contains many structural parts, and changes in any of these structural parts will have a significant impact on the airway airflow. Moreover, the electronic atomizer device itself is small in size, making it difficult to study and observe the airway airflow pattern through traditional experimental methods. In addition, relying on empirical attempts to debug the airway of the electronic atomizer device is labor-intensive and inefficient.

[0004] At present, most of the airflow simulation work on electronic atomization equipment only stays at the level of describing the airflow morphology, and lacks a standard for judging the quality of the airway. As a result, there is a lack of scientific and efficient methods for the airway design of electronic atomization equipment, which makes it difficult to improve the atomization quality and user experience of electronic atomization equipment. Summary of the invention

[0005] The purpose of the embodiments of the present application is to provide a method, device, medium and equipment for optimizing the airway structure of an electronic atomization device, aiming to solve the technical problem that the existing airway design of electronic atomization devices lacks airway quality judgment standards and is difficult to improve the atomization quality of electronic atomization devices.

[0006] To achieve the above objectives, according to the first aspect of the present application, a method for optimizing the airway structure of an electronic atomization device is provided, the method comprising:

[0007] Perform computational fluid dynamics (CFD) simulation analysis on the airway structure of the electronic atomization device to obtain CFD simulation analysis results;

[0008] Based on the CFD simulation analysis results, determine the flow velocity distribution information of the area near the atomization surface of the central radial cross section of the heating plate of the electronic atomization device;

[0009] The airway structure of the electronic atomization device is optimized according to the flow velocity distribution information of the area near the atomization surface of the central radial cross section of the heating plate.

[0010] Optionally, in a possible implementation of the first aspect, a computational fluid dynamics (CFD) simulation analysis is performed on the airway structure of the electronic atomization device to obtain a CFD simulation analysis result, including:

[0011] Extracting a fluid domain of an airway three-dimensional model corresponding to the airway structure of the electronic atomization device, wherein the airway three-dimensional model is a three-dimensional model corresponding to the airway structure pre-established using a three-dimensional modeling tool;

[0012] The CFD physical calculation model is used to calculate the flow field of the fluid domain to obtain a flow field calculation result;

[0013] If the flow field calculation result indicates that the flow field converges, a process of atomized liquid particles passing through the flow field is simulated in the airway structure to obtain the CFD simulation analysis result.

[0014] Optionally, in a possible implementation manner of the first aspect, before calculating the flow field of the fluid domain by using a steady-state calculation model to obtain a flow field calculation result, the method further includes:

[0015] Using a meshing tool to mesh the fluid domain to obtain a plurality of the flow fields, wherein the meshing includes surface meshing and / or volume meshing; and

[0016] Boundary conditions corresponding to the airway three-dimensional model are set, wherein the boundary conditions include: an inlet pressure and an outlet flow rate of the airway structure.

[0017] Optionally, in a possible implementation manner of the first aspect, before calculating the flow field of the fluid domain using the CFD physical calculation model to obtain the flow field calculation result, the method further includes:

[0018] If the flow field calculation result indicates that the flow field does not converge, the model parameters of the CFD physical calculation model are modified or a new CFD physical calculation model is replaced, and the flow field is recalculated until the flow field converges.

[0019] Optionally, in a possible implementation of the first aspect, determining the flow velocity distribution information of the near-atomization surface area of ​​the central radial cross section of the heating sheet of the electronic atomization device based on the CFD simulation analysis result includes:

[0020] According to the geometric coordinate range of the near-atomization surface area of ​​the central radial cross section of the heating plate, the parameter data related to the near-atomization surface area in the CFD simulation analysis results are screened, wherein the parameter data includes at least one of the following: air flow velocity, standard deviation, pressure difference, and fluid density;

[0021] The flow velocity distribution information is determined based on parameter data related to the near-atomization surface area.

[0022] Optionally, in a possible implementation of the first aspect, the airway structure of the electronic atomization device is optimized according to the flow velocity distribution information of the near-atomization surface area of ​​the central radial cross-section of the heating sheet, including:

[0023] If the flow velocity distribution information indicates that the flow velocity distribution in the area near the atomization surface is uneven, the airway structure of the electronic atomization device is optimized, wherein the optimization method for optimizing the airway structure of the electronic atomization device includes at least one of the following: removing the oil-absorbing cotton in the airway structure, and removing the boss rotating structure of the silicone base in the airway structure.

[0024] According to a second aspect of the present application, an airway structure optimization device for an electronic atomization device is provided, comprising:

[0025] A simulation analysis unit, used to perform computational fluid dynamics (CFD) simulation analysis on the airway structure of the electronic atomization device to obtain CFD simulation analysis results;

[0026] A determination unit, used to determine flow velocity distribution information of a region near an atomization surface of a central radial cross section of a heating sheet of the electronic atomization device based on the CFD simulation analysis result;

[0027] The optimization unit is used to optimize the airway structure of the electronic atomization device according to the flow velocity distribution information of the near-atomization surface area of ​​the central radial cross-section of the heating plate.

[0028] The second aspect and any implementation of the second aspect correspond to the first aspect and any implementation of the first aspect, respectively. The technical effects corresponding to the second aspect and any implementation of the second aspect can refer to the technical effects corresponding to the first aspect and any implementation of the first aspect, which will not be repeated here.

[0029] In a third aspect, an embodiment of the present application provides an electronic atomization device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements any one of the methods described when executing the computer program.

[0030] Optionally, in a possible implementation of the first aspect, the airway structure of the electronic atomization device includes:

[0031] The cavity part is wrapped by the suction nozzle, oil-absorbing cotton, upper sealing silicone, fiberglass tube, oil cup, oil storage cotton, heating sheet, oil-conducting cotton, atomizing base, silicone base and lower bracket; wherein the lower bracket is provided with an air inlet hole, and the silicone base is a base without the boss rotating structure.

[0032] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, it implements any of the methods described above.

[0033] In a fifth aspect, an embodiment of the present application provides a computer program product. When the computer program product is run on an electronic device, the electronic device executes any one of the methods described in the first aspect.

[0034] It can be understood that the beneficial effects of the second to fifth aspects mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here.

[0035] The embodiments of the present application provide an airway structure optimization method, device, medium and equipment for an electronic atomization device. The method provides an airway structure optimization method for an electronic atomization device. First, a computational fluid dynamics (CFD) simulation analysis is performed on the airway structure of the electronic atomization device to obtain a CFD simulation analysis result. This can simulate the flow of airflow in the airway in a computer environment without the need to directly perform complex experimental operations on the physical electronic atomization device.

[0036] Then, based on the CFD simulation analysis results, the key area of ​​the electronic atomization device, that is, the flow velocity distribution information of the near-atomization surface area of ​​the central radial section of the heating plate, was determined, and the flow velocity distribution information was used as an important indicator for judging the quality of the airway design.

[0037] Because when performing CFD simulation analysis, the simulation analysis is specifically about the entire airway structure of the electronic atomization device, including all related structural parts, the simulation process can simulate the comprehensive impact of different structural parts on the airflow. Therefore, based on the flow velocity distribution information, the airway structure of the electronic atomization device is optimized, which can comprehensively consider the impact of each structural part on the airflow, rather than looking at the change of a certain structural part in isolation, so as to more effectively optimize the airway structure to ensure the atomization taste and atomization life of the electronic atomization device. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0039] Figure 1 is a schematic flow chart of an airway structure optimization method for an electronic atomization device provided in an embodiment of the present application;

[0040] Figure 2is a schematic diagram of an optional near-atomization surface area provided in an embodiment of the present application;

[0041] Figure 3 is a schematic flow chart of an optional airway structure optimization method of an electronic atomization device provided in an embodiment of the present application;

[0042] Figure 4 It is a cross-sectional view of an electronic atomization device provided in an embodiment of the present application, in which the boss rotating structure of the silicone base is removed;

[0043] Figure 5a It is a schematic diagram of an existing silicone base with a boss rotation structure;

[0044] Figure 5b It is a schematic diagram of a silicone base with a boss rotation structure removed provided in an embodiment of the present application;

[0045] Figure 5c This is a schematic diagram of the airway structure of an electronic atomization device provided in an embodiment of the present application, in which a silicone base with a boss rotating structure is removed;

[0046] Figure 6 This is a cross-sectional view of an electronic atomization device provided in an embodiment of the present application, in which the boss rotating structure and the oil-absorbing cotton of the silicone base are removed, and the final result is;

[0047] Figure 7a The embodiment of the present application provides an oil-absorbing cotton (such as Figure 4 The internal details after the oil-absorbing cotton 2) is removed;

[0048] Figure 7b This is a schematic diagram of the airway structure of an electronic atomization device provided in an embodiment of the present application, in which the boss rotating structure of the silicone base and the oil-absorbing cotton are removed;

[0049] Figure 8 It is a structural schematic diagram of an airway structure optimization device for an electronic atomization device provided in an embodiment of the present application;

[0050] Fig. 9 It is a structural schematic diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0051] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0052] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0053] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0054] As used in the specification and appended claims of this application, the term "if" can be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "uponce it is determined" or "in response to determining" or "uponce [described condition or event] is detected" or "in response to detecting [described condition or event]", depending on the context.

[0055] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0056] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0057] First, some terms in the embodiments of the present application are explained to facilitate understanding by those skilled in the art.

[0058] Computational Fluid Dynamics (CFD) converts the physical laws of fluid (such as conservation of mass, momentum and energy) into mathematical equations and uses numerical methods to solve these equations to obtain the distribution of various physical parameters of the fluid (such as velocity, pressure, temperature, etc.).

[0059] CFD simulation is based on the basic equations of fluid mechanics, such as the mass conservation equation, momentum conservation equation, and energy conservation equation. By discretizing the calculation area into a large number of small units (grids), these equations are numerically solved on each unit to obtain the distribution of physical quantities such as fluid velocity, pressure, and temperature.

[0060] The above is a brief introduction to the nouns involved in the embodiments of the present application, which will not be repeated below.

[0061] This application example provides an example of an airway structure optimization method for an electronic atomization device. Please refer to Figure 1 As shown, Figure 1 A schematic flow chart of an airway structure optimization method for an electronic atomization device provided in the present application is shown. As an example but not a limitation, the method can be applied to any electronic atomization device.

[0062] S101, performing computational fluid dynamics (CFD) simulation analysis on the airway structure of the electronic atomization device to obtain CFD simulation analysis results.

[0063] S102, based on the CFD simulation analysis results, determine the flow velocity distribution information of the area near the atomization surface of the central radial cross section of the heating plate of the electronic atomization device.

[0064] S103, optimizing the airway structure of the electronic atomization device according to the flow velocity distribution information of the area near the atomization surface of the central radial section of the heating plate.

[0065] In this example of the application, the central radial cross section of the heating plate can be determined according to the geometric shape and position of the heating plate in the electronic atomization device. Figure 2 As shown, the area near the atomization surface usually refers to the area within a certain distance from the atomization surface (this distance can be determined according to the specific structure and atomization mechanism of the electronic atomization device, for example, 0.1-5mm). In the CFD simulation analysis results, the area near the atomization surface of the central radial section of the heating plate of the electronic atomization device can be defined by the coordinate range. For example, in the Cartesian coordinate system, the area near the atomization surface is accurately defined by the value range of the x, y, and z coordinates.

[0066] This application example uses the flow velocity distribution information of the area near the atomization surface of the central radial cross section of the heating plate of the electronic atomization device as the criterion for judging the quality of the airflow airway of the electronic atomization device. Mainly from a physical point of view, the area near the atomization surface is the area where the airflow has the most significant impact on the atomization effect, which provides a relatively clear basis for judging the design of the airway of the electronic atomization device. For example, if the flow velocity distribution in the area near the atomization surface is uniform, it can be considered that the airway structure design in this area is relatively reasonable; conversely, if the flow velocity distribution in the area near the atomization surface is uneven, the airway structure needs to be optimized.

[0067] After performing computational fluid dynamics (CFD) simulation analysis on the airway structure of the electronic atomizer device and obtaining the CFD simulation analysis results, the flow velocity distribution information of the near-atomization surface area of ​​the central radial section of the heating plate of the electronic atomizer device is determined in the following manner:

[0068] First, data points belonging to the near-fogging surface area are screened out from the CFD simulation analysis results. For example, screening conditions are set in the post-processing module of the CFD software to implement the data point screening process, and only data points within the coordinate range of the near-fogging surface area are retained.

[0069] Afterwards, since the data points in the CFD simulation analysis results are discrete, a continuous flow velocity distribution may be required when analyzing the flow velocity distribution information. Therefore, in the example of this application, a data interpolation method (such as linear interpolation, spline interpolation, etc.) can be used to interpolate the discrete data points to obtain an approximate flow velocity value at any position in the near-atomization surface area.

[0070] Finally, the extracted velocity data of the area near the atomization surface are statistically analyzed to calculate the average value, maximum value, minimum value, standard deviation and other statistics of the velocity. These statistics can reflect the overall characteristics and discreteness of the velocity distribution in the area near the atomization surface, that is, the velocity distribution information. For example, the average value can reflect the average level of the velocity in the area, and the standard deviation can reflect the uniformity of the velocity distribution.

[0071] After obtaining the velocity distribution information of the area near the atomization surface, the airway structure of the electronic atomization device is optimized according to the velocity distribution information. In one example, if the velocity distribution of the area near the atomization surface is uneven, you can consider adjusting the shape of the airway to improve it. For example, if it is found that the flow velocity in a certain area is too fast, the cross-sectional area of ​​the airway can be appropriately expanded in that area to reduce the airflow velocity; conversely, if the flow velocity in a certain area is too slow, the cross-sectional area of ​​the airway can be appropriately reduced to increase the flow velocity. For complex airway shapes, a parametric design method can be used to optimize the airway shape by adjusting design parameters (such as the radius of curvature of the airway, cross-sectional shape parameters, etc.).

[0072] In addition, in one example, adding guide vanes, guide rings and other guide devices in the airway is also an effective way to improve the uniformity of flow velocity. Therefore, in the example of this application, guide vanes that hinder the airflow can be set in areas with faster flow velocity according to the flow velocity distribution information to slow down the airflow; in areas with slower flow velocity, more airflow can be guided into the airway through guide devices (the shape, size and position of the guide devices can be determined through actual simulation and experiments) to increase the flow velocity.

[0073] In one example, since the airway length affects the resistance of the airflow, and thus affects the flow rate. Therefore, in the example of this application, if the overall flow rate in the area near the atomization surface is too large, the airway length can be appropriately increased to increase the airflow resistance to reduce the flow rate. For example, the airway length can be adjusted by adding or reducing a straight pipe section at the inlet or outlet of the airway, and the effect of the adjustment can be verified by CFD simulation analysis. If the overall flow rate in the area near the atomization surface is too large, the airway length can be appropriately shortened to increase the flow rate.

[0074] In one example, since the roughness of the airway wall will affect the frictional resistance of the airflow, the example of the present application can increase the roughness of the airway wall (such as using a special rough coating) to increase the frictional resistance and reduce the flow rate for areas with higher flow rates; for areas with lower flow rates, the wall can be made smooth to reduce resistance and increase the flow rate.

[0075] In addition, since the local high-speed area may cause problems such as uneven atomization or noise, in addition to adding the guide device and adjusting the cross-sectional shape, the present application example can also set a buffer chamber in the local high-speed area to allow the high-speed airflow to be decelerated and homogenized in the chamber before entering the atomization area. The size and shape of the buffer chamber can be designed according to the range of the high-speed area and the flow rate.

[0076] Since local low-speed areas may make it difficult to fully atomize, the present application example can also set a diversion channel near the low-speed area to guide part of the high-speed airflow to the local low-speed area to increase the flow rate. In actual operation, the design of the diversion channel should take into account the flow distribution and pressure loss of the entire airway to ensure that there is no adverse effect on the airflow in other areas.

[0077] In a possible implementation, refer to Figure 3 As shown, computational fluid dynamics (CFD) simulation analysis is performed on the airway structure of the electronic atomization device, and the CFD simulation analysis results are obtained, including:

[0078] S301, extracting a fluid domain of an airway three-dimensional model corresponding to the airway structure of the electronic atomization device, wherein the airway three-dimensional model is a three-dimensional model corresponding to the airway structure pre-established using a three-dimensional modeling tool;

[0079] S302, using a CFD physical calculation model to calculate the flow field of the fluid domain to obtain a flow field calculation result;

[0080] S303: If the flow field calculation result indicates that the flow field converges, a process of atomized liquid particles passing through the flow field is simulated in the airway structure to obtain a CFD simulation analysis result.

[0081] In this application example, professional 3D modeling tools or 3D modeling software (such as 3D mechanical design software SolidWorks, interactive computer-aided design and manufacturing system Unigraphics, etc.) can be used to construct a 3D model of the airway structure of the electronic atomization device. The airway structure includes the shape, size, curvature, and connection relationship with other components (such as heating plates, oil storage tanks, etc.) of the airway. In the modeling process, the actual geometric features of the airway structure are reflected as accurately as possible to ensure the accuracy of the subsequent CFD simulation analysis.

[0082] In addition, the airway 3D model can be appropriately simplified without affecting the accuracy of the simulation analysis results. For example, some tiny structural details that have little effect on the airflow (such as the tiny roughness of the airway surface, etc.) can be ignored, or some complex irregular shapes can be approximated to simple geometric shapes (such as approximating a complex curved airway to a combination of arc segments) to reduce the amount of calculation and improve the calculation efficiency.

[0083] After the three-dimensional airway model is established, the fluid domain is extracted from the three-dimensional airway model. The fluid domain is the space where the fluid (usually a mixture of air and atomizing liquid in an electronic atomization device) in the airway can flow.

[0084] Calculating the extracted fluid domain using the selected CFD physical calculation model can be understood as solving a set of mathematical equations describing the fluid flow (usually a set of partial differential equations based on physical laws such as conservation of mass, conservation of momentum, and conservation of energy).

[0085] During the calculation process, the fluid domain needs to be divided into many small grid units (grid division), and the mathematical model needs to be applied to each grid unit for calculation. The result of the calculation is the flow field calculation result, including the distribution information of physical quantities such as velocity, pressure, and temperature of the fluid at each position.

[0086] In this application example, when selecting the CFD physical calculation model (fluid model) and solver, you can select a suitable fluid model based on the characteristics of the airflow in the airway of the electronic atomization device (such as flow rate, Reynolds number, etc.). If the airflow velocity is low and the Reynolds number is small (usually less than 2300), you can choose a laminar model; if the airflow velocity is high and the Reynolds number is large (greater than 4000), you need to select a turbulence model (such as k-ε model, k-ω model, etc.). For some complex flow conditions, use more complex turbulence models or multi-scale models to accurately describe the flow characteristics of the airflow.

[0087] In addition, for the choice of solver, CFD simulation analysis software usually provides a variety of solvers, such as pressure-based solvers and density-based solvers. For low-speed incompressible airflow (such as most cases in electronic atomization devices), pressure-based solvers are usually a more appropriate choice; for high-speed compressible airflow, density-based solvers need to be selected.

[0088] In the example of this application, during the CFD calculation process, it is necessary to constantly monitor whether the flow field calculation results converge. Flow field convergence means that as the calculation is iterated, the calculated values ​​of various physical quantities in the flow field (such as velocity, pressure, etc.) gradually stabilize and no longer change significantly. It is usually judged whether the flow field converges by observing the calculation residual (the difference between the calculated value and the exact solution). If the residual is less than a set threshold (for example, 10^-6), it can be determined that the flow field has converged.

[0089] By setting appropriate convergence criteria before iterative calculation (such as residual less than a certain value, change of a physical quantity less than a certain proportion, etc.), and then starting iterative calculation. During the calculation process, the change of residual, the convergence of physical quantities and the consumption of computing resources are monitored in real time. If the residual does not converge or the change of physical quantities is abnormal, the calculation parameters (such as time step, relaxation factor, etc.) or grid division can be adjusted in time.

[0090] After the simulation calculation is completed, the CFD simulation analysis results obtained include the distribution of physical quantities such as pressure, velocity, temperature, etc. at each point in the airway. In addition, the CFD simulation analysis results can be intuitively displayed and analyzed through visualization tools (such as the post-processing module that comes with the CFD software), such as drawing velocity vector diagrams, pressure cloud diagrams, streamline diagrams, etc., to understand the overall flow characteristics of the airflow in the airway.

[0091] Through the above examples of the present application, the simulation of the motion trajectory, speed, mass change, etc. of the atomized liquid particles in the airway of the electronic atomization device in the flow field can obtain more detailed information about the atomization process. This information constitutes the final CFD simulation analysis results, which is convenient for analyzing the atomization effect of the electronic atomization device and optimizing the airway structure to improve the atomization quality.

[0092] In the embodiments of the present application, by establishing a mathematical model of the airway structure of the electronic atomization device, the flow of airflow in the airway can be simulated in a computer environment without directly performing complex experimental operations on the physical electronic atomization device, thereby overcoming the experimental difficulties caused by the small size of the electronic atomization device.

[0093] In a possible implementation, before calculating the flow field of the fluid domain using the steady-state calculation model to obtain the flow field calculation result, the method further includes:

[0094] Meshing the fluid domain using a meshing tool to obtain a plurality of flow fields, wherein the meshing includes surface meshing and / or volume meshing; and

[0095] Boundary conditions corresponding to the airway three-dimensional model are set, wherein the boundary conditions include: inlet pressure and outlet flow rate of the airway structure.

[0096] Alternatively, meshing can be understood as the process of discretizing a continuous fluid domain into multiple small units (grids). By dividing the fluid domain into multiple small grids, complex fluid flow problems can be converted into simple computational problems on these discrete grids, so that they can be numerically solved using computers.

[0097] In this application example, surface meshing is mainly used to discretize the surface of the fluid domain. For some airway structures with complex geometric shapes, surface meshing can more accurately describe the geometric characteristics of the airway wall. For example, in the curved part of the airway or where there are complex curved surfaces, the surface mesh can better fit the wall, thereby improving the calculation accuracy.

[0098] Volume meshing mainly discretizes the three-dimensional space of the entire fluid domain to more comprehensively describe the flow of the fluid in three-dimensional space. In some cases, volume meshing alone can meet the calculation requirements; in other cases, it may be necessary to combine surface meshing and volume meshing for more accurate calculations, depending on factors such as the geometry of the fluid domain, the calculation accuracy requirements, and the calculation resources.

[0099] It is still necessary to explain that the above boundary conditions stipulate the physical behavior of the fluid at the boundary of the fluid domain. Since CFD calculations are performed in a limited fluid domain, and the boundary of the fluid domain interacts with the external environment or other components, the conditions on these boundaries directly affect the flow of the fluid in the entire fluid domain.

[0100] The inlet pressure of the airway structure determines the power of the fluid entering the airway. In electronic atomization devices, the size of the inlet pressure will affect the speed and flow of the airflow, and thus affect the atomization effect. By setting a reasonable inlet pressure, the impact of different working conditions or external environments on electronic atomization devices can be simulated.

[0101] The outlet flow rate specifies the speed at which the fluid leaves the airway structure (for example, but not limited to, 18.3 ml / s). The outlet flow rate and the inlet pressure together affect the pressure distribution in the airway and the flow state of the fluid. For example, if the outlet flow rate is set to a large value, the pressure in the airway may be reduced, thereby affecting the atomization process of the atomized liquid.

[0102] In the example of this application, the airway geometry model is meshed before the simulation calculation to improve the accuracy and calculation efficiency of the simulation analysis results based on the quality and density of the mesh. For the airway structure, a finer mesh is required in areas where the airflow changes dramatically (such as narrow parts and curved parts of the airway), while a sparser mesh can be used in areas where the airflow is relatively stable. Adaptive meshing technology can be used to automatically adjust the density of the mesh according to the changes in the airflow during the calculation process.

[0103] In a possible implementation, before calculating the flow field of the fluid domain using the CFD physical calculation model to obtain the flow field calculation result, the method further includes:

[0104] If the flow field calculation result indicates that the flow field does not converge, the model parameters of the CFD physical calculation model are modified or a new CFD physical calculation model is replaced, and the flow field is recalculated until the flow field converges.

[0105] In computational fluid dynamics (CFD) calculations, flow field convergence means that as the calculations are iterated, the calculation results gradually approach a stable state. Specifically, the changes in the calculated values ​​of various physical quantities in the flow field (such as velocity, pressure, temperature, etc.) at different positions are getting smaller and smaller, and the residual (the difference between the calculated value and the exact solution) is gradually reduced to an acceptable range. Non-convergence of the flow field means that during the calculation process, the calculated values ​​of these physical quantities continue to fluctuate or have no obvious trend towards a stable value, and the residual has not dropped below the set threshold.

[0106] The CFD physical calculation model contains multiple parameters, and the values ​​of these parameters will have a significant impact on the calculation results. For example, in the turbulence model, parameters such as turbulence intensity, turbulent kinetic energy, and turbulent kinetic energy dissipation rate directly affect the simulation effect of turbulence; in the compressible flow model, parameters such as the specific heat ratio of the gas will affect the calculation of the gas compressibility.

[0107] When the flow field does not converge, you can modify these parameters according to the specific situation of the flow field and the manifestation of non-convergence. If the non-convergence is caused by inaccurate turbulence simulation, you can try to adjust the relevant parameters of the turbulence model. For example, if you find that the local turbulence intensity in the flow field is too high or too low, you can increase or decrease the initial value of the turbulence intensity accordingly.

[0108] For some complex flow problems, it may be necessary to adjust parameters by combining physical intuition and experience. For example, when simulating the interaction between the atomized liquid and the airflow in an electronic atomization device, if it is found that the flow field does not converge near the atomized liquid, it may be necessary to adjust the parameters related to multiphase flow.

[0109] When it is found that the current CFD physical calculation model cannot converge the flow field no matter how the parameters are adjusted, it may be that the model itself is not suitable for simulating the current flow problem. At this time, it is necessary to replace the new CFD physical calculation model. For example, if the laminar flow-based calculation model does not converge when simulating the high-speed airflow in the airway of the electronic atomization device, and the airflow is found to be in a turbulent state through analysis, then it should be replaced with a suitable turbulence model for calculation.

[0110] In a possible implementation, based on the CFD simulation analysis results, the flow velocity distribution information of the near-atomization surface area of ​​the central radial cross section of the heating plate of the electronic atomization device is determined, including:

[0111] According to the geometric coordinate range of the near-atomization surface area of ​​the central radial section of the heating plate, the parameter data related to the near-atomization surface area in the CFD simulation analysis results are screened, wherein the parameter data includes at least one of the following: air flow velocity, standard deviation, pressure difference, and fluid density;

[0112] The flow velocity distribution information is determined based on parameter data related to the area near the atomization surface.

[0113] First, it is necessary to clarify the geometric coordinate range of the area near the atomization surface of the radial section at the center of the heating plate in the electronic atomization device in three-dimensional space. This can be determined by analyzing the structural design and working principle of the electronic atomization device. For example, a three-dimensional coordinate system is established with the center of the heating plate as the origin, and the coordinate range of the area near the atomization surface in the x, y, and z directions is determined based on the position of the atomization surface and the geometric dimensions of the heating plate.

[0114] Once the geometric coordinate range of the area near the atomization surface is determined, data can be screened in the CFD (computational fluid dynamics) simulation analysis results. CFD simulation results usually contain fluid parameter information at various locations in the entire fluid domain. By setting coordinate screening conditions, only data points within the coordinate range of the area near the atomization surface are retained, thereby obtaining parameter data related to the area.

[0115] By calculating the standard deviation of multiple air flow velocities, the degree of dispersion of the air flow velocity relative to the average flow velocity can be determined. The larger the standard deviation, the more uneven the distribution of the air flow velocity in the area near the atomization surface; the smaller the standard deviation, the more uniform the distribution of the air flow velocity.

[0116] In a possible implementation, the airway structure of the electronic atomization device is optimized according to the flow velocity distribution information of the near-atomization surface area of ​​the central radial section of the heating sheet, including:

[0117] If the flow velocity distribution information indicates that the flow velocity distribution in the area near the atomization surface is uneven, the airway structure of the electronic atomization device is optimized, wherein the optimization method for optimizing the airway structure of the electronic atomization device includes at least one of the following: removing the oil-absorbing cotton in the airway structure, and removing the boss rotating structure of the silicone base in the airway structure.

[0118] When the velocity distribution information of the area near the atomization surface of the central radial section of the heating plate shows that the velocity distribution is uneven, the flow state of the fluid is unstable in the key area of ​​atomization. This unevenness may lead to poor atomization effect, for example, the atomization liquid cannot be atomized evenly, thus affecting the user experience and performance of the electronic atomization device.

[0119] The rotating structure of the boss of the silicone base may cause local flow disturbance in the airway. This structure may change the direction and speed of the airflow, causing the flow velocity in the vicinity to be inconsistent with that in other areas, thereby affecting the overall flow velocity distribution. Figure 4 A cross-sectional view of an electronic atomization device is shown in which the boss rotating structure of the silicone base is removed as an example of the present application. The airway structure of the electronic atomization device includes: a suction nozzle, oil-absorbing cotton, upper sealing silicone, a fiberglass tube, an oil cup, oil storage cotton, a heating plate, oil-guiding cotton, an atomization base, a silicone base, and a cavity portion wrapped by a lower bracket; wherein the lower bracket is provided with an air inlet hole, and the silicone base is the base from which the boss rotating structure is removed.

[0120] For example, Figure 5a An existing silicone base with a boss rotating structure is shown. Figure 5b A silicone base with a boss rotation structure removed provided by an example of this application is shown. Figure 5c A schematic diagram of the airway structure of an electronic atomization device provided in an example of the present application with a silicone base having a boss rotating structure removed is shown. Figure 5a and Figure 5b By comparison, it can be seen that after removing the boss rotating structure on the silicone base, the electronic atomization device provided in the example of the present application can eliminate this local source of flow field disturbance, making the airflow in the airway flow more uniform, thereby helping to optimize the flow velocity distribution in the area near the atomization surface.

[0121] It should be noted that in this application example, removing the oil-absorbing cotton in the airway structure refers to removing the oil-absorbing cotton between the lower bracket and the silicone base of the electronic atomization device (such as Figure 4 The oil-absorbing cotton 2 shown in the figure is, of course, not limited to this. According to the actual needs of the electronic atomization device, the oil-absorbing cotton between the upper sealing silicone and the nozzle can also be selectively removed (such as Figure 4 The oil-absorbing cotton shown is 1).

[0122] Since the oil-absorbing cotton may hinder the flow of air in the airway structure, and its uneven distribution or physical state changes after oil absorption may cause local airflow obstruction, thereby exacerbating the uneven distribution of flow velocity. Figure 6 A cross-sectional view of an electronic atomization device is shown in which the boss rotating structure and the oil-absorbing cotton of the silicone base are removed in an example of the present application. Figure 7a An example of the present application is shown in which the oil-absorbing cotton (such as Figure 4 The internal details after the oil-absorbing cotton 2) is removed; Figure 7b A schematic diagram of the airway structure of an electronic atomization device is shown in which the boss rotating structure and the oil-absorbing cotton of the silicone base are removed in an example of the present application, and the airway structure is finally presented.

[0123] Remove the oil-absorbing cotton (such as Figure 4 After the oil-absorbing cotton 2) is installed, the airflow obstruction caused by the oil-absorbing cotton between the lower bracket and the silicone base can be reduced, so that the airflow can pass through the airway more smoothly, thereby improving the flow velocity distribution in the area near the atomization surface.

[0124] The boss rotation structure of the silicone base in the electronic atomization device is removed as optimization solution 1. The boss rotation structure of the silicone base of the electronic atomization device is removed, and the oil-absorbing cotton between the lower bracket and the silicone base of the electronic atomization device (such as Figure 4 The oil-absorbing cotton 2 shown in the figure is used as the optimization scheme 2, and the existing atomization equipment without removing the boss rotating structure and the oil-absorbing cotton is used as a reference, that is, scheme 0, and experiments are carried out. According to the experimental results, 8 detection points are selected in the radial section of the center of the heating plate of the electronic atomization device near the atomization surface 0.28mm circumference, for example: P1, P2, P3, P4, P5, P6, P7, P8, and the speed values ​​of the 8 detection points are extracted, and the standard deviation of the speed distribution of each scheme is calculated. As shown in Table 1 below, the standard deviation of scheme 0 (existing scheme) is 0.76, the standard deviation of optimization scheme 1 is 0.28, and the standard deviation of optimization scheme 2 is 0.21. Therefore, compared with schemes 0 and 1, scheme 2 is selected for the airway optimization design of the electronic atomization equipment, and the working performance of the obtained electronic atomization equipment is the best. Compared with scheme 0, scheme 1 has a better airway optimization design effect, but compared with scheme 2, scheme 1 has a poorer airway optimization design effect.

[0125] Table 1

[0126]

[0127] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0128] An embodiment of the present application provides an embodiment of an electronic atomization device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, any one of the airway structure optimization methods of the electronic atomization device is implemented.

[0129] In a possible implementation, the airway structure of the electronic atomization device includes:

[0130] The cavity part is wrapped by the suction nozzle, oil-absorbing cotton, upper sealing silicone, fiberglass tube, oil cup, oil storage cotton, heating plate, oil guide cotton, atomizing base, silicone base and lower bracket; wherein the lower bracket is provided with an air inlet hole, and the silicone base is the base without the boss rotating structure.

[0131] Corresponding to the airway structure optimization method of the electronic atomization device described in the above embodiment, Figure 8 is a schematic diagram of the structure of an airway structure optimization device for an electronic atomization device provided in an embodiment of the present application. The device can be implemented as part or all of a computer device by software, hardware, or a combination of both. The computer device can be Fig. 9 Electronic equipment shown.

[0132] Reference Figure 8 The airway structure optimization device of the electronic atomization device comprises:

[0133] A simulation analysis unit 801 is used to perform computational fluid dynamics (CFD) simulation analysis on the airway structure of the electronic atomization device to obtain CFD simulation analysis results;

[0134] A determination unit 802 is used to determine the flow velocity distribution information of the near-atomization surface area of ​​the central radial cross section of the heating sheet of the electronic atomization device based on the CFD simulation analysis result;

[0135] The optimization unit 803 is used to optimize the airway structure of the above-mentioned electronic atomization device according to the flow velocity distribution information of the near-atomization surface area of ​​the central radial cross-section of the above-mentioned heating plate.

[0136] Further, based on any of the above embodiments, as an example of the present application, the above simulation analysis unit includes:

[0137] An extraction subunit, used to extract the fluid domain of the airway three-dimensional model corresponding to the airway structure of the electronic atomization device, wherein the airway three-dimensional model is a three-dimensional model corresponding to the airway structure pre-established by using a three-dimensional modeling tool;

[0138] A calculation subunit is used to calculate the flow field of the above fluid domain using a CFD physical calculation model to obtain a flow field calculation result;

[0139] The simulation subunit is used to simulate the process of atomized liquid particles passing through the flow field in the airway structure if the flow field calculation result indicates that the flow field converges, so as to obtain the CFD simulation analysis result.

[0140] Further, based on any of the above embodiments, as an example of the present application, the above device also includes:

[0141] A partitioning unit, configured to perform mesh partitioning on the fluid domain using a mesh partitioning tool to obtain the plurality of flow fields, wherein the mesh partitioning includes surface mesh partitioning and / or volume mesh partitioning; and

[0142] The setting unit is used to set boundary conditions corresponding to the above-mentioned airway three-dimensional model, wherein the above-mentioned boundary conditions include: inlet pressure and outlet flow rate of the airway structure.

[0143] Further, based on any of the above embodiments, as an example of the present application, the above device also includes:

[0144] The adjustment unit is used to modify the model parameters of the CFD physical calculation model or replace a new CFD physical calculation model if the flow field calculation result indicates that the flow field does not converge, and recalculate the flow field until the flow field converges.

[0145] Further, based on any of the above embodiments, as an example of the present application, the above determination unit further includes:

[0146] A screening subunit is used to screen parameter data related to the atomization surface area in the CFD simulation analysis results according to the geometric coordinate range of the atomization surface area in the central radial section of the heating plate, wherein the parameter data includes at least one of the following: air flow velocity, standard deviation, pressure difference, and fluid density;

[0147] The determination subunit is used to determine the flow velocity distribution information according to the parameter data related to the near-atomization surface area.

[0148] Further, based on any of the above embodiments, as an example of the present application, the above optimization unit further includes:

[0149] If the above-mentioned flow velocity distribution information indicates that the flow velocity distribution in the above-mentioned near-atomization surface area is uneven, the airway structure of the above-mentioned electronic atomization device is optimized, wherein the optimization method for optimizing the airway structure of the above-mentioned electronic atomization device includes at least one of the following: removing the oil-absorbing cotton in the above-mentioned airway structure, and removing the boss rotating structure of the silicone base in the above-mentioned airway structure.

[0150] It should be noted that the airway structure optimization device of the electronic atomization device provided in the above embodiment is only illustrated by the division of the above-mentioned functional modules. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0151] The functional units and modules in the above embodiments may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit, and the above integrated units may be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the protection scope of the embodiments of the present application.

[0152] It should be noted that the information interaction, execution process, etc. between the above-mentioned devices / units are based on the same concept as the method embodiment of the present application. Their specific functions and technical effects can be found in the method embodiment part and will not be repeated here.

[0153] An embodiment of the present application further provides an electronic device, the electronic device comprising one or more processors and a memory;

[0154] The memory is coupled to one or more processors, and the memory is used to store computer program code, the computer program code includes computer instructions, and one or more processors call the computer instructions to enable the electronic device to execute the airway structure optimization method of the electronic atomization device shown above.

[0155] Fig. 9The schematic diagram of the structure of an electronic device provided in the embodiment of the present application is that the electronic device 900 can be a mobile phone, a smart screen, a tablet computer, a wearable electronic device, an in-vehicle electronic device, an augmented reality (AR) device, a virtual reality (VR) device, a laptop computer, an ultra-mobile personal computer (UMPC), a netbook, a personal digital assistant (PDA), a projector, or a communication device such as a server, a storage device, a base station, or a smart car, etc. The embodiment of the present application does not impose any restrictions on the specific type of the electronic device.

[0156] The memory 901 can be used to store computer software programs 902 and modules, and the processor 903 executes various functional applications and data processing of the electronic device by running the software programs and modules stored in the memory 901. The memory 901 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area can store data created according to the use of the electronic device (such as audio data, a phone book, etc.), etc. In addition, the memory 901 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0157] Among them, the processor 903 may include one or more processors such as a central processing unit, an application processor (AP), a baseband processor, etc. The processor may be the nerve center and command center of the wireless router. The processor 903 may generate an operation control signal according to the instruction operation code and the timing signal to complete the control of fetching and executing instructions. The memory 901 may be used to store computer executable program codes, and the executable program codes include instructions. The processor 903 executes various functional applications and data processing of the network device by running the instructions stored in the memory. The memory 901 may include a program storage area and a data storage area, such as storing data of a sound signal to be played. For example, the memory may be a double rate synchronous dynamic random access memory DDR or a flash memory Flash.

[0158] An embodiment of the present application also provides a computer-readable storage medium, in which computer instructions are stored; when the computer-readable storage medium is run on an electronic device, the electronic device executes the airway structure optimization method of the electronic atomization device shown above.

[0159] The above-mentioned computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the above-mentioned computer instructions may be transmitted from one website, computer, server or data center to another website, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The above-mentioned computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that includes one or more available media integrated therein. The above-mentioned available media may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium, or a semiconductor medium (e.g., a solid state disk (SSD)), etc.

[0160] An embodiment of the present application also provides a computer program product containing computer instructions, which, when executed on an electronic device, enables the electronic device to execute the airway structure optimization method of the electronic atomization device shown above.

[0161] The computer storage medium and computer program product provided in the above-mentioned embodiments of the present application are used to execute the method provided above. Therefore, the beneficial effects that can be achieved can refer to the corresponding beneficial effects of the method provided above, and will not be repeated here.

[0162] In the above embodiments, it can also be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The above-mentioned computer program product includes one or more computer instructions. When the above-mentioned computer instructions are loaded and executed on a computer, the above-mentioned process or function according to the embodiment of the present application is generated in whole or in part. The above-mentioned computer can be a general-purpose computer, a special-purpose computer, a computer network or other programmable device. The above-mentioned computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the above-mentioned computer instructions can be transmitted from a website site, computer, server or data center by wired (such as: coaxial cable, optical fiber, data subscriber line (Digital Subscriber Line, DSL)) or wireless (such as: infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The above-mentioned computer-readable storage medium can be any available medium that a computer can access, or a data storage device such as a server, data center, etc. that contains one or more available media integrated. The available media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, digital versatile discs (DVD)), or semiconductor media (eg, solid state disks (SSD)).

[0163] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0164] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments applied for herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0165] In the embodiments provided in the present application, it should be understood that the disclosed devices / network equipment and methods can be implemented in other ways. For example, the device / network equipment embodiments described above are merely schematic. For example, the division of the modules or units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0166] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0167] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A method for optimizing the airway structure of an electronic atomization device, characterized in that: include: Perform computational fluid dynamics (CFD) simulation analysis on the airway structure of the electronic atomization device to obtain CFD simulation analysis results; Based on the CFD simulation analysis results, determine the flow velocity distribution information of the area near the atomization surface of the central radial cross section of the heating plate of the electronic atomization device; The airway structure of the electronic atomization device is optimized according to the flow velocity distribution information of the area near the atomization surface of the central radial cross section of the heating plate.

2. The method according to claim 1, characterized in that The airway structure of the electronic atomization device is subjected to computational fluid dynamics (CFD) simulation analysis, and the CFD simulation analysis results are obtained, including: Extracting a fluid domain of an airway three-dimensional model corresponding to the airway structure of the electronic atomization device, wherein the airway three-dimensional model is a three-dimensional model corresponding to the airway structure pre-established using a three-dimensional modeling tool; The CFD physical calculation model is used to calculate the flow field of the fluid domain to obtain a flow field calculation result; If the flow field calculation result indicates that the flow field converges, a process of atomized liquid particles passing through the flow field is simulated in the airway structure to obtain the CFD simulation analysis result.

3. The method according to claim 2, characterized in that Before calculating the flow field of the fluid domain using a steady-state calculation model to obtain a flow field calculation result, the method further includes: Using a meshing tool to mesh the fluid domain to obtain a plurality of the flow fields, wherein the meshing includes surface meshing and / or volume meshing; and Boundary conditions corresponding to the airway three-dimensional model are set, wherein the boundary conditions include: an inlet pressure and an outlet flow rate of the airway structure.

4. The method according to claim 2, characterized in that Before calculating the flow field of the fluid domain by using the CFD physical calculation model to obtain the flow field calculation result, the method further includes: If the flow field calculation result indicates that the flow field does not converge, the model parameters of the CFD physical calculation model are modified or a new CFD physical calculation model is replaced, and the flow field is recalculated until the flow field converges.

5. The method according to claim 1, characterized in that The determining of the flow velocity distribution information of the area near the atomization surface of the central radial section of the heating plate of the electronic atomization device based on the CFD simulation analysis result includes: According to the geometric coordinate range of the near-atomization surface area of ​​the central radial cross section of the heating plate, the parameter data related to the near-atomization surface area in the CFD simulation analysis results are screened, wherein the parameter data includes at least one of the following: air flow velocity, standard deviation, pressure difference, and fluid density; The flow velocity distribution information is determined based on parameter data related to the near-atomization surface area.

6. The method according to claim 1, characterized in that The airway structure of the electronic atomization device is optimized according to the flow velocity distribution information of the area near the atomization surface of the central radial cross section of the heating sheet, including: If the flow velocity distribution information indicates that the flow velocity distribution in the area near the atomization surface is uneven, the airway structure of the electronic atomization device is optimized, wherein the optimization method for optimizing the airway structure of the electronic atomization device includes at least one of the following: removing the oil-absorbing cotton in the airway structure, and removing the boss rotating structure of the silicone base in the airway structure.

7. An airway structure optimization device for an electronic atomization device, characterized in that: include: A simulation analysis unit, used to perform computational fluid dynamics (CFD) simulation analysis on the airway structure of the electronic atomization device to obtain CFD simulation analysis results; A determination unit, used to determine flow velocity distribution information of a region near an atomization surface of a central radial cross section of a heating sheet of the electronic atomization device based on the CFD simulation analysis result; The optimization unit is used to optimize the airway structure of the electronic atomization device according to the flow velocity distribution information of the near-atomization surface area of ​​the central radial cross-section of the heating plate.

8. An electronic atomization device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the method according to any one of claims 1 to 6 is implemented.

9. The electronic atomization device according to claim 8, characterized in that: The airway structure of the electronic atomization device includes: The cavity part is wrapped by the suction nozzle, oil-absorbing cotton, upper sealing silicone, fiberglass tube, oil cup, oil storage cotton, heating sheet, oil-conducting cotton, atomizing base, silicone base and lower bracket; wherein the lower bracket is provided with an air inlet hole, and the silicone base is a base without the boss rotating structure.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 6 is implemented.

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