Atomization assembly and electronic atomization device provided with same

Abstract

The utility model relates to an atomization assembly and an electronic atomization device.The atomization assembly is provided with an atomization cavity and an air outlet channel, a heating body with a heating surface is arranged in the atomization cavity, the air outlet channel communicates with the atomization cavity and the external atmosphere, and the air outlet channel extends in the first direction from the end connected with the atomization cavity; wherein the air outlet channel comprises a first air outlet section close to the atomization cavity and a second air outlet section away from the atomization cavity, the cross section, perpendicular to the first direction, of the first air outlet section is polygonal, and the side wall of the second air outlet section smoothly extends around the central axis of the air outlet channel. According to the atomization assembly, the cross section, perpendicular to the first direction, of the first air outlet section, close to the atomization cavity, of the air outlet channel is rectangular, and compared with a circular cross section, the air outlet channel with the rectangular cross section can effectively reduce contact and collision between an aerosol generating substrate flowing out of the atomization cavity and the channel wall of the air outlet channel; therefore, the take-out efficiency of the aerosol generating substrate is improved.

Description

Technical Field

[0001] The present application relates to the field of atomization technology, and in particular to an atomization component and an electronic atomization device equipped with the same. Background Art

[0002] Aerosol is a colloidal dispersion system formed by small solid or liquid particles dispersed and suspended in a gas medium. Since aerosol can be absorbed by the human body through the respiratory system, it provides users with a new alternative absorption method. Atomization device refers to a device that forms an aerosol by heating or ultrasound. Atomizable media include liquid, gel, paste or solid aerosol-generating matrices. Atomizing these media can deliver inhalable aerosols to users, replacing conventional product forms and absorption methods.

[0003] The atomizer is usually provided with a central tube for discharging aerosol. However, in the existing atomizer, especially in the atomizer using side atomization, the temperature of the aerosol is very high, and the aerosol is easily condensed during the collision with the central tube, thereby affecting the efficiency of the aerosol discharge. Summary of the invention

[0004] Based on this, it is necessary to provide an atomization assembly and an electronic atomization device equipped with the same to address the problem of low aerosol removal efficiency.

[0005] An atomizing assembly comprises an atomizing chamber and an air outlet passage, wherein a heating element having a heating surface is arranged in the atomizing chamber, the air outlet passage connects the atomizing chamber with the external atmosphere, and the air outlet passage extends from one end connected to the atomizing chamber along a first direction;

[0006] The air outlet channel includes a first air outlet section close to the atomization chamber and a second air outlet section away from the atomization chamber. The cross-section of the first air outlet section perpendicular to the first direction is a polygon, and the side wall of the second air outlet section extends smoothly around the central axis of the air outlet channel.

[0007] In one embodiment, the first air outlet section and the second air outlet section are connected to each other and have a smooth transition.

[0008] In one embodiment, the cross-section of the first air outlet section perpendicular to the first direction is a rounded rectangle, and the cross-section of the first air outlet section perpendicular to the first direction has four straight sides and four arc-shaped chamfered sides, the four straight sides are arranged along the circumference of the air outlet channel, and each arc-shaped chamfered side is connected between two adjacent straight sides.

[0009] In one embodiment, a cross section of the first air outlet section perpendicular to the first direction is a rounded square.

[0010] In one embodiment, a cross section of the second air outlet section perpendicular to the first direction is circular.

[0011] In one embodiment, the minimum side length of the cross section of the first air outlet section perpendicular to the first direction is greater than the maximum dimension of the heat generating surface in a direction perpendicular to the first direction.

[0012] In one embodiment, the heat generating surface is parallel to the first direction.

[0013] In one embodiment, the cross section of the first air outlet section perpendicular to the first direction is a rounded rectangle, the heating surface is rectangular, and the long side of the cross section of the first air outlet section perpendicular to the first direction is parallel to the long side of the heating surface.

[0014] In one embodiment, the heating element includes a substrate and a heating film disposed on a surface of the substrate, and the heating film forms the heating surface.

[0015] An electronic atomization device comprises the above-mentioned atomization assembly, wherein the electronic atomization device comprises a battery assembly, and the battery assembly is electrically connected to the atomization assembly and supplies power to the atomization assembly.

[0016] In the above-mentioned atomization component, the cross-section of the first air outlet section of the air outlet channel close to the atomization chamber is rectangular and perpendicular to the first direction. Compared with the air outlet channel with a circular cross-section, the air outlet channel with a rectangular cross-section can effectively reduce the contact and collision between the aerosol generating matrix flowing out of the atomization chamber and the channel wall of the air outlet channel, thereby improving the efficiency of carrying out the aerosol generating matrix, and then improving the utilization rate of the aerosol generating matrix, and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of an electronic atomization device according to an embodiment of the present application.

[0020] Figure 2 for Figure 1 The electronic atomization device is shown as a schematic cross-sectional view perpendicular to the second direction.

[0021] Figure 3 for Figure 1 The shown schematic cross-sectional view of the electronic atomization device is perpendicular to the third direction.

[0022] Figure 4 for Figure 1 A top view of the electronic atomization device shown.

[0023] Figure 5 for Figure 1 A schematic structural diagram of a nozzle of an electronic atomization device is shown.

[0024] Figure 6 It is a schematic structural diagram of a heating element according to an embodiment of the present application.

[0025] Figure 7 This is an airflow simulation diagram of an atomization component in the prior art.

[0026] Figure 8 This is an airflow simulation diagram of the atomization component of the present application.

[0027] Fig. 9 It is a schematic diagram of the smoke volume and smoke volume conversion rate of the atomization assembly of the prior art and the present application.

[0028] Description of reference numerals:

[0029] 100. Electronic atomization device; 20. Atomization assembly; 21. Suction nozzle; 212. Air outlet channel; 2122. First air outlet section; 2124. Second air outlet section; 2126. Third air outlet section; 214. Liquid storage chamber; 22. Fixed seat; 23. Atomization seat; 24. Sealing cover; 25. Atomization chamber; 26. Heating element; 261. Base; 263. Heating film; 265. Positive electrode; 267. Negative electrode; 27. Positive conductive electrode; 29. ​​Negative conductive electrode; 40. Battery assembly. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0031] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0032] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0034] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0036] See also Figure 1 , Figure 1 A schematic diagram of an electronic atomization device 100 in an embodiment of the present application is shown. The electronic atomization device 100 provided in the embodiment of the present application is used to heat an aerosol generating substrate to generate an aerosol for use by a user. The aerosol generating substrate includes but is not limited to materials used for medical, health, wellness, and beauty purposes, for example, the aerosol generating substrate is a liquid medicine or oil.

[0037] like Figure 2 and Figure 3 As shown, the electronic atomization device 100 includes an atomization component 20 and a battery component 40. The battery component 40 is mounted on one end of the atomization component 20 and is electrically connected to the atomization component 20. The atomization component 20 is used to store a liquid aerosol-generating matrix and heat the aerosol-generating matrix under the action of the electric energy of the battery component 40. The aerosol-generating matrix is ​​heated and atomized to generate an aerosol for the user to take.

[0038] Specifically, the atomizing assembly 20 includes a suction nozzle 21 , a fixing seat 22 , an atomizing seat 23 , a sealing cover 24 , a heating element 26 , a positive conductive electrode 27 , and a negative conductive electrode 29 , which are matched with each other.

[0039] The nozzle 21 is a hollow shell structure with an open end. An end of the nozzle 21 away from the open end is provided with an air outlet channel 212 and a liquid storage chamber 214. One end of the air outlet channel 212 is connected to the open end of the nozzle 21, and the other end of the air outlet channel 212 extends along the axial direction of the nozzle 21 and penetrates the nozzle 21 to connect to the external atmosphere. The liquid storage chamber 214 circumferentially surrounds the air outlet channel 212 and is connected to the open end of the nozzle 21. The liquid storage chamber 214 is used to store an aerosol generating matrix.

[0040] In the following embodiments, the axial direction of the nozzle 21 is defined as the first direction (i.e. Figure 2 The length direction of the nozzle 21 is the second direction (i.e. Figure 3 The width direction of the nozzle 21 is the third direction (i.e. Figure 2The first direction, the second direction and the third direction intersect each other. As a preferred embodiment, the first direction, the second direction and the third direction are perpendicular to each other.

[0041] Please continue reading Figure 2 and Figure 3 The fixing seat 22 is a hollow shell-like structure, one end of the fixing seat 22 is inserted into the opening end of the suction nozzle 21, and the other end of the fixing seat 22 is matched with the battery assembly 40. The atomizer seat 23 is matched with the end of the fixing seat 22 inserted into the suction nozzle 21, and the fixing seat 22 and the atomizer seat 23 jointly define an atomizer cavity 25 for accommodating the heating element 26. The sealing cover 24 is generally a hollow cylindrical structure, and the sealing cover 24 is sleeved outside the atomizer seat 23 to play a sealing role.

[0042] Furthermore, the fixing seat 22 is provided with an air inlet connecting the atomizing chamber 25 with the external atmosphere, and the air inlet is located on a side of the atomizing chamber 25 away from the air outlet channel 212. The atomizing seat 23 is provided with an air outlet connecting the atomizing chamber 25 with the air outlet channel 212 and a lower liquid port connecting the atomizing chamber 25 with the liquid storage chamber 214, and the air outlet and the lower liquid port are located on a side of the atomizing chamber 25 close to the air outlet channel 212. One end of the air outlet channel 212 is inserted into the air outlet to connect with the atomizing chamber 25, so that the air outlet channel 212 extends from the atomizing chamber 25 along the first direction.

[0043] The heating element 26 is accommodated in the atomizing chamber 25. One end of the positive conductive electrode 27 is connected to the heating element 26, and the other end is connected to the positive electrode of the battery assembly 40. One end of the negative conductive electrode 29 is connected to the heating element 26, and the other end is connected to the negative electrode of the battery assembly 40, so that the heating element 26 is electrically connected to the battery assembly 40. The heating element 26 can generate heat under the action of the electrical energy of the battery assembly 40.

[0044] In this way, the aerosol generating matrix stored in the liquid storage chamber 214 enters the heating element 26 through the lower liquid port. The heating element 26 heats the atomized aerosol generating matrix under the action of the electric energy of the battery assembly 40 to generate an aerosol. The airflow flowing into the atomization chamber 25 from the air inlet carries the aerosol generated by the atomization of the aerosol generating matrix, and flows into the external atmosphere through the air outlet and the air outlet channel 212 in sequence for the user to take.

[0045] As described in the background technology, the aerosol generated in the existing atomization assembly 20 will collide with the channel wall of the air outlet channel 212 and condense, thereby affecting the number of aerosol particles flowing out of the air outlet channel 212, thereby reducing the user experience and reducing the utilization rate of the aerosol generation matrix.

[0046] Based on the above technical issues, please combine Figures 2 to 5As shown, in the present application, the air outlet channel 212 is arranged in sections, having a first air outlet section 2122 close to the atomization chamber 25 and a second air outlet section 2124 away from the atomization chamber 25. The cross-section of the first air outlet section 2122 perpendicular to the first direction is a polygon, and the side wall of the second air outlet section 2124 extends smoothly around the central axis of the air outlet channel 212.

[0047] In this way, the cross-section of the first air outlet section 2122 of the air outlet channel 212 close to the atomization chamber 25 perpendicular to the first direction is rectangular. Compared with the air outlet channel 212 with a circular cross-section, the air outlet channel 212 with a rectangular cross-section can effectively reduce the contact and collision between the aerosol generating matrix flowing out of the atomization chamber 25 and the channel wall of the air outlet channel 212, thereby improving the efficiency of carrying out the aerosol generating matrix, and then improving the utilization rate of the aerosol generating matrix, thereby improving the user experience.

[0048] Among them, the smooth extension of the side wall of the second air outlet section 2124 means that the side wall of the second air outlet section 2124 does not have a sharp turn, and can be specifically formed by one curved surface, or by a plurality of smoothly transitioned curved surfaces, or by a mixture of curved surfaces and planes. When the side wall of the second air outlet section 2124 is formed by a mixture of curved surfaces and planes, the extension direction of the plane is tangent to the curved surface connected thereto and smoothly transitions.

[0049] Furthermore, the first air outlet section 2122 and the second air outlet section 2124 are connected to each other, and the connection between the first air outlet section 2122 and the second air outlet section 2124 is smoothly transitioned along the first direction, so that the aerosol generating substrate can flow smoothly.

[0050] Specifically in some embodiments, the cross-section of the first air outlet section 2122 perpendicular to the first direction is a rounded rectangle, that is, the cross-section of the first air outlet section 2122 perpendicular to the first direction has four straight sides and four arcuate sides, the four straight sides are arranged along the circumference of the air outlet channel 212, and each arcuate side is connected between two adjacent straight sides.

[0051] Specifically in one embodiment, the cross section of the first air outlet section 2122 perpendicular to the first direction is a rounded square, the cross section of the second air outlet section 2124 perpendicular to the first direction is a circle, and the cross section of the air outlet channel 212 perpendicular to the first direction gradually and smoothly transitions from a square to a circle. In other embodiments, the cross section of the first air outlet section 2122 perpendicular to the first direction may also be a rounded rectangle, and the cross section of the second air outlet section 2124 perpendicular to the first direction may be an ellipse or the like.

[0052] In some embodiments, the air outlet channel 212 also includes a third air outlet segment 2126, which is connected to an end of the second air outlet segment 2124 away from the first air outlet segment 2122. The cross-section of the third air outlet segment 2126 perpendicular to the first direction is elliptical, and the connection between the third air outlet segment 2126 and the second air outlet segment 2124 has a smooth transition.

[0053] Please combine Figure 2 , Figure 3 as well as Figure 6 As shown, the heating element 26 includes a substrate 261, a heating film 263, a positive electrode 265 and a negative electrode 267. Among them, the substrate 261 is a porous structure resistant to high temperatures such as porous ceramics, and the substrate 261 has a plurality of pores with capillary forces, so that the aerosol generating matrix can be absorbed and stored. The heating film 263 is arranged on the surface of the substrate 261 to form a heating surface, and the heating surface is arranged opposite to the air outlet channel 212 in the first direction. The positive electrode 265 and the negative electrode 267 are respectively located on both sides of the heating film 263 and are electrically connected to the heating film 263, the positive conductive electrode is in contact with the positive electrode 265, and the negative conductive electrode is in contact with the negative electrode 267.

[0054] In this way, the aerosol generating matrix flowing into the atomizing chamber 25 from the liquid storage chamber 214 is absorbed and stored by the base 261, and the heating film 263 is electrically connected to the battery assembly 40 through the positive electrode 265 and the negative electrode 267. The heating film 263 can heat the aerosol generating matrix under the action of the electric energy of the battery assembly 40. The aerosol generated by the atomization of the aerosol generating matrix flows out from the heating surface, follows the airflow to flow in the first direction and directly enters the air outlet channel 212.

[0055] Furthermore, in some embodiments, the minimum side length of the cross section of the first outlet section 2122 of the outlet channel 212 perpendicular to the first direction is greater than the maximum dimension of the heating surface in the direction perpendicular to the first direction. Since the first outlet section 2122 has a larger dimension than the heating surface, it can effectively prevent the aerosol with a higher temperature from condensing when it enters the outlet channel 212 due to contact with the channel wall with a lower temperature, thereby further improving the aerosol removal rate. Specifically, Figure 3 As shown, the length b of the first air outlet section 2122 of the air outlet channel 212 in the third direction is greater than the length a of the heat generating surface in the third direction.

[0056] Specifically, in one embodiment, the base 261 is a cubic structure, the length direction of the base 261 extends along the third direction, the width direction of the base 261 extends along the first direction, and the thickness direction of the base 261 extends along the second direction. The heating film 263 is provided on a side surface of the base 261 perpendicular to the second direction, thereby forming a heating surface parallel to the first direction. In this way, the heating element 26 forms a lateral atomization structure, and the aerosol is generated from the side of the heating element 26 and enters the air outlet channel 212 along the first direction.

[0057] Furthermore, the heating surface is rectangular, and the length direction of the heating surface is parallel to the third direction, and the width direction of the heating surface is parallel to the first direction. The length direction of the cross section of the first air inlet section 2123 of the air outlet channel 212 perpendicular to the first direction is also parallel to the third direction (that is, the long side of the cross section of the first air outlet section 2122 perpendicular to the first direction is parallel to the long side of the heating surface), and the width direction of the cross section of the first air inlet section 2123 perpendicular to the first direction is parallel to the second direction.

[0058] In some other embodiments, the base 261 is a cubic structure, the length direction of the base 261 extends along the second direction, the width direction of the base 261 extends along the third direction, and the thickness direction of the base 261 extends along the first direction. The heating film 263 is provided on a side surface of the base 261 perpendicular to the first direction and facing the air outlet channel 212, thereby forming a heating surface perpendicular to the first direction. In this way, the heating element 26 forms a forward atomization structure, and the aerosol is generated from the top of the heating element 26 and enters the air outlet channel 212 along the first direction.

[0059] Furthermore, the heating surface is rectangular, the length direction of the heating surface is parallel to the second direction, and the width direction of the heating surface is parallel to the third direction. The length direction of the cross section of the first air inlet section 2123 of the air outlet channel 212 perpendicular to the first direction is parallel to the second direction, and the width direction of the cross section of the first air inlet section 2123 perpendicular to the first direction is parallel to the third direction.

[0060] Figure 7 The figure shows the air flow simulation diagram of the atomizing assembly in the prior art, in which the cross section of the air outlet channel is circular. Figure 8 The figure shows an airflow simulation diagram of an atomizing assembly 20 in the present application, in which the cross section of the first air outlet section of the air outlet channel is rectangular.

[0061] Figure 7 and Figure 8 The lines of different colors in the figure represent the outflow paths of aerosol particles of different diameters, wherein the diameter of the aerosol particles whose outflow paths are represented by blue lines is smaller, the diameter of the aerosol particles whose outflow paths are represented by red lines is larger, and the diameter of the aerosol particles whose outflow paths are represented by green lines is between the aforementioned two.

[0062] according to Figure 7 It can be seen that in the prior art, most of the aerosol particles with larger diameters are captured by the channel wall of the air outlet channel, and the aerosol particles flowing out of the atomization component are significantly reduced. Figure 8 As shown in FIG. 2 , in the present application, most aerosol particles can flow out smoothly from the air outlet channel 212. The number of aerosol particles captured by the air outlet channel 212 of the present application is significantly smaller than that captured by the air outlet channel of the prior art. Further testing shows that the number of aerosol particles captured by the air outlet channel 212 of the present application is smaller than that of the prior art. Figure 7 The number of aerosol particles captured by the prior art outlet passage shown is reduced by 58%.

[0063] It can be seen that compared with the prior art, in the atomization component 20 of the present application, the aerosol particles generated by the heated atomization of the aerosol generating matrix are less likely to be captured by the air outlet channel 212 during the process of flowing through the air outlet channel 212 due to the special shape design of the air outlet channel 212. When the number of aerosol particles in the atomization chamber 25 is the same, compared with the prior art, the number of aerosol particles flowing out of the air outlet channel 212 of the present application is greater and the total mass is greater.

[0064] Fig. 9 The figure shows the smoke volume and smoke volume conversion rate of the atomizer assembly of the prior art and the atomizer assembly 20 of the present application during operation. The cross section of the air outlet channel of the atomizer assembly of the prior art is circular, while the cross section of the first air outlet section 2122 of the air outlet channel 212 of the atomizer assembly 20 of the present application is rectangular.

[0065] The amount of smoke refers to the total mass of all substances flowing out of the atomizer component, including the weight of aerosol and other impurities. Fig. 9 As shown, in the three puffs of the atomizer assembly 20 of the present application, the amount of smoke flowing out of the air outlet channel 212 is 7.27 mg, 7.16 mg, and 7.49 mg respectively. In the three puffs of the atomizer assembly of the prior art, the mass of the smoke flowing out of the air outlet channel is 4.51 mg, 4.48 mg, and 4.46 mg respectively. It can be seen that in each puff, the mass of the smoke flowing out of the atomizer assembly 20 of the present application is significantly greater than the mass of the smoke flowing out of the atomizer assembly of the prior art.

[0066] The smoke volume conversion rate refers to the ratio of the amount of smoke flowing out of the atomizer component after the aerosol generating substrate is heated and atomized in the atomizer component to the amount of smoke generated by the aerosol generating substrate being heated and atomized in the external atmosphere. Fig. 9The atomizer assembly 20 of the present application has a smoke conversion rate of 86.65%, 85.34% and 89.27% ​​in three puffs, while the atomizer assembly of the prior art has a smoke conversion rate of 69.38%, 68.92% and 68.62% in three puffs.

[0067] It can be seen that, compared with the atomizer assembly in the prior art, the atomizer assembly 20 of the present application improves the smoke conversion rate from 68%-69% to 85%-89%, thereby significantly improving the smoke conversion rate and further improving the utilization rate of the aerosol generation matrix.

[0068] The above-mentioned atomization component 20 and the electronic atomization device 100 equipped with the same can effectively prevent the high-temperature aerosol from condensing when entering the air outlet channel 212, because the cross-section of the first air outlet section 2122 of the air outlet channel 212 is rectangular, and the size of the cross-section of the first air outlet section 2122 is larger than the size of the heating surface of the heating element 26. At the same time, the contact and collision of the aerosol with the channel wall of the air outlet channel 212 during the flow process are reduced, and finally the effect of improving the aerosol carry-out rate is achieved.

[0069] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. An atomizing assembly, characterized in that: A heating element with a heating surface is provided in the atomizing chamber, the atomizing chamber is connected with the external atmosphere, and the atomizing chamber is connected with the heating element. The atomizing chamber is connected with the heating element and ... heating element is connected with the heating element and the heating element. The heating element is connected with the heating element and the heating element is connected with the heating element. The air outlet channel includes a first air outlet section close to the atomization chamber and a second air outlet section away from the atomization chamber. The cross-section of the first air outlet section perpendicular to the first direction is a polygon, and the side wall of the second air outlet section extends smoothly around the central axis of the air outlet channel.

2. The atomizer assembly according to claim 1, characterized in that: The first air outlet section and the second air outlet section are connected to each other and have a smooth transition.

3. The atomizer assembly according to claim 1, characterized in that: The cross-section of the first air outlet section perpendicular to the first direction is a rounded rectangle, and the cross-section of the first air outlet section perpendicular to the first direction has four straight sides and four arc-shaped chamfered sides, the four straight sides are arranged along the circumference of the air outlet channel, and each arc-shaped chamfered side is connected between two adjacent straight sides.

4. The atomizer assembly according to claim 3, characterized in that: A cross section of the first air outlet section perpendicular to the first direction is a rounded square.

5. The atomizer assembly according to claim 1, characterized in that: The cross section of the second air outlet section perpendicular to the first direction is circular.

6. The atomizer assembly according to claim 1, characterized in that: The minimum side length of the cross section of the first air outlet section perpendicular to the first direction is greater than the maximum dimension of the heat generating surface in a direction perpendicular to the first direction.

7. The atomizer assembly according to claim 6, characterized in that: The heat generating surface is parallel to the first direction.

8. The atomizer assembly according to claim 1, characterized in that: The cross section of the first air outlet section perpendicular to the first direction is a rounded rectangle, the heating surface is rectangular, and the long side of the cross section of the first air outlet section perpendicular to the first direction is parallel to the long side of the heating surface.

9. The atomizer assembly according to claim 6, characterized in that: The heating element includes a substrate and a heating film arranged on the surface of the substrate, and the heating film forms the heating surface.

10. An electronic atomization device, characterized in that: The electronic atomization device comprises an atomization assembly as described in any one of claims 1 to 9, wherein the electronic atomization device comprises a battery assembly, and the battery assembly is electrically connected to the atomization assembly and supplies power to the atomization assembly.

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