Atomizer airway structure, atomizer and electronic atomization device

Abstract

The application relates to an atomizer air channel structure, an atomizer and an electronic atomization device. The atomizer air channel structure comprises an atomizer support, an air inlet channel and a condensate recovery space are formed in the atomizer support, the air inlet channel is communicated with the condensate recovery space, and the condensate recovery space is communicated with an atomization channel through a condensation communication opening. The air inlet channel comprises a sub-air inlet channel extending in a first direction, a sub-air outlet channel extending in a second direction and a corner region. The atomizer air channel structure can realize secondary buffering by arranging the condensate recovery space and the corner region, reduce the flow rate of air, avoid the situation that the atomized liquid cannot be fully heated due to the too high flow rate of air, and make the condensate formed after the aerosol passes through the condensation flow back to the condensate recovery space for storage, so that the condensate cannot flow back to the outside of the shell of the electronic atomization device along the direction in which the air enters, and the use experience of a user is affected.

Description

Technical Field

[0001] This application relates to the field of aerosol supply technology, and in particular to atomizer airway structure, atomizer, and electronic atomization device. Background Technology

[0002] Electronic atomizers are systems that generate aerosols for users to inhale by heating rather than burning an atomizing matrix.

[0003] An electronic atomizer generally includes a housing, a reservoir chamber within the housing to hold the atomized liquid, an atomizing component, an atomizer holder, and electrodes electrically connected to the atomizing component. The atomizer holder typically serves as a mounting base for the atomizing component and other structures, and it seals the joints. Since the user needs external air to carry the atomized liquid to their mouth when inhaling the aerosol, the atomizer holder also needs to have airways that connect to the outside environment.

[0004] In related technologies, in order to improve air intake efficiency, the air passage on the atomizer bracket is often directly connected to the atomization space. Although this type of direct air passage has high air intake efficiency, after the atomized liquid is heated into an aerosol in the atomization space, there is a probability that condensation will form. Then, under the action of gravity, it will flow out of the air passage in the opposite direction, causing oil seepage and leakage, which will affect the user's experience. Utility Model Content

[0005] Therefore, it is necessary to provide an atomizer airway structure, an atomizer, and an electronic atomization device to address the problem of condensate backflow in the airway, which leads to oil seepage and leakage.

[0006] In a first aspect, this application provides an atomizer airway structure, including an atomizer bracket, wherein the atomizer bracket is provided with an air inlet channel and a condensate recovery space, the air inlet channel is connected to the condensate recovery space, and the condensate recovery space is connected to the atomization channel through a condensate connection port;

[0007] The intake channel includes a sub-intake channel extending along a first direction, a sub-exhaust channel extending along a second direction, and a corner area. The intake outlet of the sub-intake channel and the exhaust inlet of the sub-exhaust channel are both connected to the corner area. The first direction and the second direction form a set angle.

[0008] In one embodiment, the condensate recovery space is provided with an adsorption structure for guiding the condensate.

[0009] In one embodiment, the atomizer support also includes a base, on which a plurality of the adsorption structures are spaced around.

[0010] In one embodiment, a storage space is formed between at least two adjacent adsorption structures for storing condensate.

[0011] In one embodiment, the condensation connection is positioned opposite to the exhaust outlet of the sub-exhaust channel.

[0012] In one embodiment, the condensate recovery space is an annular space, the exhaust outlet and the condensate connection port are connected through an annular channel, and multiple sets of the adsorption structures are arranged between the exhaust outlet and the condensate connection port.

[0013] In one embodiment, the first direction is a vertical direction, and the set included angle is no greater than 90 degrees.

[0014] In one embodiment, the set angle is less than 90 degrees, and in the first direction, the height of the exhaust outlet is lower than the height of the exhaust inlet.

[0015] In one embodiment, the sidewalls adjacent to the air intake outlet and the exhaust inlet are smoothly connected by a first guide surface.

[0016] In one embodiment, a low-pressure groove is provided on the first guide surface, and the cross-section of the low-pressure groove is smaller than the cross-section of the air inlet outlet.

[0017] In one embodiment, the bottom of the low-pressure tank is provided with a guide surface that arches toward the corner area.

[0018] In one embodiment, the cross-sectional area of ​​the low-pressure trough is less than 50% of the cross-sectional area of ​​the air inlet outlet.

[0019] Secondly, this application provides an atomizer, including a housing and an atomizer airway structure as described above;

[0020] The outer shell is fitted onto the outside of the atomizer bracket, and the inner wall of the outer shell and the atomizer bracket enclose the condensate recovery space to form the condensate recovery space. The top and bottom of the condensate recovery space are provided with sealing structures.

[0021] Thirdly, this application provides an electronic atomizing device, including the atomizer described above.

[0022] The aforementioned atomizer airflow structure utilizes the condensate recovery space and corner area to achieve a two-stage buffer, reducing airflow velocity and preventing the atomized liquid from being insufficiently heated due to excessive airflow, thus affecting the user's inhalation experience. It also allows the condensate formed after the aerosol is condensed to flow back into the condensate recovery space for storage, preventing the condensate from flowing back along the direction of air entry onto the outside of the electronic atomizer's casing, which would affect the user's experience. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the atomizer described in an embodiment of this application.

[0024] Figure 2 This is a schematic diagram of the structure of the bottom of the atomizer described in an embodiment of this application.

[0025] Figure 3 for Figure 2 Sectional view at point AA.

[0026] Figure 4 This is a schematic diagram of the atomizer bracket described in an embodiment of this application.

[0027] Figure 5 This is a schematic diagram of the structure of the other side of the atomizer bracket described in the embodiment of this application.

[0028] Explanation of reference numerals in the attached figures

[0029] 1. Atomizer bracket; 11. Sub-intake channel; 111. Intake inlet; 112. Intake outlet; 12. Sub-exhaust channel; 121. Exhaust inlet; 122. Exhaust outlet; 13. Corner area; 14. Condensate recovery space; 141. Condensate connection port; 142. Adsorption structure; 143. Sealing ring; 15. First guide surface; 151. Low-pressure groove; 1511. Groove bottom; 2. Outer shell. Detailed Implementation

[0030] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0031] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0032] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0035] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, 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 possible implementation.

[0036] This application provides an atomizer airflow structure that utilizes a condensate recovery space and corner area to achieve a two-stage buffer, reducing airflow velocity and preventing the atomized liquid from being insufficiently heated due to excessive airflow velocity, thus affecting the user's inhalation experience. It also allows the condensate formed after the aerosol is condensed to flow back into the condensate recovery space for storage, preventing the condensate from flowing back along the direction of air inflow onto the outside of the electronic atomizer's casing, thus affecting the user's experience.

[0037] The present application will be described in detail below through specific embodiments.

[0038] Firstly, referring to Figures 1 to 5 As shown, this embodiment provides an atomizer air duct structure, including an atomizer bracket 1. The atomizer bracket 1 has an air intake channel and a condensate recovery space 14. The air intake channel is connected to the condensate recovery space 14, and the condensate recovery space 14 is connected to the atomization channel through a condensation connection port 141. The air intake channel includes a sub-air intake channel 11 extending in a first direction, a sub-exhaust channel 12 extending in a second direction, and a corner region 13. The air intake outlet 112 of the sub-air intake channel 11 and the exhaust inlet 121 of the sub-exhaust channel 12 are both connected to the corner region 13. The first direction and the second direction form a set angle. It should be understood that when the user performs a suction action, air first enters the sub-intake channel 11 through the intake inlet 111, then flows from the intake outlet 112 of the sub-intake channel 11 into the corner area 13 and the exhaust inlet 121 of the sub-exhaust channel 12, then flows into the sub-exhaust channel 12, and then the air in the sub-exhaust channel 12 flows from the exhaust outlet 122 into the condensate recovery space, and finally enters the atomization channel through the condensate connection port 141. The corner area 13 at the connection between the sub-intake channel 11 and the sub-exhaust channel 12 provides an initial buffer for the air flowing towards the condensate recovery space 14.

[0039] The atomizer airflow structure provided in this embodiment can achieve a two-stage buffer by setting the condensate recovery space 14 and the corner area 13, reducing the airflow velocity and preventing the atomized liquid from being insufficiently heated due to excessively high airflow velocity, which would affect the user's inhalation experience. It can also allow the condensate formed after the aerosol is condensed to flow back into the condensate recovery space 14 for storage, preventing the condensate from flowing back along the direction of air entry to the outside of the electronic atomizing device's outer shell 2, which would affect the user's experience.

[0040] In some embodiments, the condensate recovery space 14 is provided with an adsorption structure 142 for guiding the condensate. The adsorption structure 142 can be a fin within a steel sheet structure, or other structures capable of adsorbing and fixing the condensate using capillary action. By providing the adsorption structure 142, the condensate flowing back into the condensate recovery space 14 can be adsorbed and fixed, reducing the probability of the condensate continuing to flow back into the exhaust channel 12.

[0041] In one embodiment, the condensation connection 141 is higher than the adsorption structure 142 in the vertical direction. This arrangement reduces the probability that excessive condensate in the condensate recovery space 14 will flow directly into the condensation connection 141, thereby ensuring the smooth air intake of the entire air passage structure. In other words, most of the condensate in the condensate recovery space 14 can be adsorbed and fixed by the adsorption structure 142. Setting the condensation connection 141 at a higher position can prevent part of the condensation connection 141 from being blocked by condensate, thus affecting the air intake efficiency.

[0042] In some embodiments, the condensate recovery space 14 is an annular space, with the exhaust outlet 122 and the condensation connection port 141 connected through an annular channel. Multiple sets of adsorption structures 142 are arranged between the exhaust outlet 122 and the condensation connection port 141. The air discharged from the exhaust outlet 122 first disperses into two streams of air in the annular channels on both sides, then flows simultaneously through the multiple sets of adsorption structures 142 to the condensation connection port 141. There can be one or two condensation connection ports 141. When there are two condensation connection ports 141, they can be symmetrically arranged on both sides of the exhaust outlet 122 to receive air from both sides of the annular channel (two semi-annular channels). This arrangement also ensures that the air received by the two condensation connection ports 141 is more uniform, guaranteeing a more stable airflow within the atomization space.

[0043] Based on the above-mentioned configuration of the condensate recovery space 14 and the adsorption structure 142, the flow path length of air in the condensate recovery space 14 can be significantly extended, further improving the adsorption efficiency of the adsorption structure 142. At the same time, it can also further improve the efficiency of air carrying the condensate on the adsorption structure 142 back to the atomization space to be converted into aerosol.

[0044] In some embodiments, the atomizer holder 1 further includes a base, on which a plurality of adsorption structures 142 are spaced around each other. It should be understood that the base extends outward in a circumferential direction to form a flange, thereby forming a bottom sealing structure for the condensate recovery space 14.

[0045] Continue to refer to Figures 3 to 5 As shown, a storage space is formed between at least two adjacent adsorption structures 142, and the storage space is used to store condensate. That is, the two adjacent adsorption structures 142, together with the top surface of the base, and part of the outer wall of the atomizer bracket 1 and part of the inner wall of the outer shell 2, together enclose the storage space for storing condensate.

[0046] In some embodiments, the condensation connection 141 is positioned opposite to the exhaust outlet 122. This arrangement effectively extends the airflow path from the exhaust outlet 122 to the condensation connection 141, allowing more condensate from the adsorption structure 142 to re-enter the atomization space and be re-converted into aerosols. Furthermore, the condensate flowing from the condensation connection 141 into the condensate recovery space 14 is fully absorbed by the adsorption structure 142 before reaching the exhaust outlet 122, thus significantly reducing the probability of condensate flowing into the exhaust outlet 122.

[0047] Continue to refer to Figure 3 As shown, the first direction is vertical, and the included angle is set to no more than 90 degrees. That is, the included angle between the sub-intake channel 11 and the sub-exhaust channel 12 is a right angle or an acute angle. This arrangement allows the sub-exhaust channel 12 to act as a buffer space for condensate in the condensate recovery space 14. When a small amount of condensate enters the sub-exhaust channel 12, it will not flow directly out along the vertically oriented sub-intake channel 11, but will first stay on the side wall of the sub-exhaust channel 12, further reducing the probability of condensate flowing back out of the air passage structure.

[0048] In some further embodiments, the included angle is set to be less than 90 degrees, and in the first direction, that is, the vertical direction, the height of the exhaust outlet 122 is lower than the height of the exhaust inlet 121. It should be understood that when a small amount of condensate enters the sub-exhaust channel 12, this arrangement allows the small amount of condensate in the sub-exhaust channel 12 to flow back into the condensate recovery space 14 under the action of gravity.

[0049] In some embodiments, the adjacent sidewalls of the intake outlet 112 and the exhaust inlet 121 are smoothly connected by a first guide surface 15. It should be understood that the first guide surface 15 is located at the connection between the sub-intake passage 11 and the sub-exhaust passage 12. This connection refers to the junction of the sidewall of the sub-intake passage 11 facing the sub-exhaust passage 12 and the sidewall of the sub-exhaust passage 12 facing the sub-intake passage 11, i.e., the inner corner. The first guide surface 15 can be an arc-shaped surface structure with a certain curvature, in which case the middle of the first guide surface 15 arches towards the corner region 13. The first guide surface 15 can also be an angled structure.

[0050] Furthermore, based on the aforementioned first guide surface 15, the airflow along the sidewall of the sub-intake channel 11 facing the sub-exhaust channel 12 can be more easily redirected and enter the exhaust inlet 121 by utilizing the air adhesion effect, thereby improving airflow at this location. It also reduces energy loss caused by air directly impacting the sidewall of the corner area 13.

[0051] In some further embodiments, a low-pressure groove 151 is formed on the first guide surface 15, and the cross-section of the low-pressure groove 151 is smaller than the cross-section of the air intake outlet 112. It should be understood that the extension direction of the low-pressure groove 151 matches the direction of airflow. The low-pressure groove 151 can be in the same direction as the extension direction of the sub-intake channel 11, or it can form an angle with the sub-intake channel 11 and the sub-exhaust channel 12, so that the air in the sub-intake channel 11 can be quickly introduced into the sub-exhaust channel 12 through the angled structure.

[0052] Furthermore, based on the aforementioned low-pressure groove 151, when air passes through the low-pressure groove 151, which has a smaller cross-section than the air intake outlet 112, a lower air pressure is formed at the location of the low-pressure groove 151. This low pressure at the inner corner generates a turning force that drives the air at the air intake outlet 112 toward the exhaust inlet 121, thereby significantly improving the intake efficiency of the air passage structure. At the same time, it also reduces the energy loss caused by the air directly hitting the side wall of the corner area 13.

[0053] It should be understood that the bottom surface 1511 and the sides of the low-pressure trough 151 can also utilize the wall effect to allow some air to be directly diverted into the exhaust inlet 121.

[0054] In some further embodiments, the bottom of the low-pressure trough 151 is provided with a guide surface that arches towards the corner region 13. This guide surface may be a rounded structure connecting the bottom of the low-pressure trough 151 and the sidewall of the sub-exhaust passage 12. This arrangement can further utilize the wall-attachment effect to improve airflow and reduce air resistance, while making it easier for air discharged from the intake outlet 112 to enter the exhaust inlet 121.

[0055] In some embodiments, the cross-sectional area of ​​the low-pressure trough 151 is less than 50% of the cross-sectional area of ​​the intake outlet 112, meaning that the cross-sectional area of ​​the intake outlet 112 is at least twice the cross-sectional area of ​​the low-pressure trough 151. This arrangement allows the air pressure difference between the two parts within the sub-intake passage 11 to become more pronounced when air flows from the intake inlet 111 to the low-pressure trough 151. One part consists of low-pressure air located at the inner corner and within the low-pressure trough 151, while the other part consists of high-pressure air located outside the low-pressure trough 151. The significant pressure difference between the high-pressure air outside the low-pressure trough 151 and the low-pressure air inside the low-pressure trough 151 further enhances the turning force of the air flowing from the intake outlet 112 to the exhaust inlet 121, thus making the air turning effect more pronounced at this location.

[0056] Continue to refer to Figures 1 to 5 As shown, in a second aspect, this application provides an atomizer, including a housing 2 and the atomizer airway structure as described above; the housing 2 is sleeved on the outside of the atomizer support 1, and the inner wall of the housing 2 and the atomizer support 1 enclose a condensate recovery space 14, and the top and bottom of the condensate recovery space 14 are provided with sealing structures.

[0057] Furthermore, the sealing structure can be a sealing ring 143 surrounding the outer surface of the atomizer bracket 1. Specifically, it can be designed with corners or other features based on other structures on the atomizer bracket 1, as long as it reliably seals the condensate recovery space 14. It should be understood that by placing the sealing ring 143 on the atomizer bracket 1, it can be inserted into the outer shell 2 along with the atomizer bracket 1, without interfering with the smooth inner wall of the outer shell 2. Optionally, the sealing ring 143 can be a lip seal, thereby improving the sealing effect.

[0058] The atomizer provided in this embodiment can achieve a two-stage buffer by using the condensate recovery space 14 and the corner area 13 in the airway structure. This reduces the airflow velocity and prevents the atomized liquid from being insufficiently heated due to excessive airflow, which would affect the user's inhalation experience. It also allows the condensate formed after the aerosol is condensed to flow back into the condensate recovery space 14 for storage, preventing the condensate from flowing back along the direction of air entry onto the outer shell 2 of the electronic atomizing device, which would affect the user's experience.

[0059] Thirdly, this application provides an electronic atomizing device, including the atomizer described above.

[0060] The electronic atomizing device provided in this embodiment can achieve a two-stage buffer by using the condensate recovery space 14 and the corner area 13 in the airway structure. This reduces the airflow velocity and prevents the atomized liquid from being insufficiently heated due to excessive airflow velocity, which would affect the user's inhalation experience. It also allows the condensate formed after the aerosol is condensed to flow back into the condensate recovery space 14 for storage, preventing the condensate from flowing back along the direction of air entry to the outside of the electronic atomizing device's outer shell 2, which would affect the user's experience.

[0061] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.

[0062] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An atomizer airway structure, characterized in that, Includes an atomizer bracket (1), on which an air intake channel and a condensate recovery space (14) are provided. The air intake channel is connected to the condensate recovery space (14), and the condensate recovery space (14) is connected to the atomization channel through a condensate connection port (141). The intake channel includes a sub-intake channel (11) extending along a first direction, a sub-exhaust channel (12) extending along a second direction, and a corner region (13). The intake outlet (112) of the sub-intake channel (11) and the exhaust inlet (121) of the sub-exhaust channel (12) are both connected to the corner region (13). The first direction and the second direction form a set angle.

2. The atomizer air passage structure according to claim 1, characterized in that, The condensate recovery space (14) is provided with an adsorption structure (142) for guiding the condensate.

3. The atomizer air passage structure according to claim 2, characterized in that, The atomizer bracket (1) also includes a base, and a plurality of the adsorption structures (142) are arranged around the base at intervals.

4. The atomizer air passage structure according to claim 3, characterized in that, A storage space is formed between at least two adjacent adsorption structures (142) for storing condensate.

5. The atomizer air passage structure according to claim 3, characterized in that, The condenser connection port (141) is positioned opposite to the exhaust outlet (122) of the sub-exhaust channel (12).

6. The atomizer air passage structure according to claim 5, characterized in that, The first direction is the vertical direction, and the set included angle is no greater than 90 degrees.

7. The atomizer air passage structure according to claim 6, characterized in that, The set angle is less than 90 degrees, and in the first direction, the height of the exhaust outlet (122) is lower than the height of the exhaust inlet (121).

8. The atomizer air passage structure according to any one of claims 1 to 7, characterized in that, The air intake outlet (112) and the exhaust inlet (121) are smoothly connected at the junction of their adjacent side walls by a first guide surface (15).

9. The atomizer air passage structure according to claim 8, characterized in that, A low-pressure groove (151) is provided on the first guide surface (15), and the cross-section of the low-pressure groove (151) is smaller than the cross-section of the air inlet (112).

10. The atomizer air passage structure according to claim 9, characterized in that, The bottom of the low-pressure tank (151) is provided with a guide surface that arches toward the corner area (13).

11. The atomizer air passage structure according to claim 9, characterized in that, The cross-sectional area of ​​the low-pressure tank (151) is less than 50% of the cross-sectional area of ​​the air inlet (112).

12. An atomizer, characterized in that, It includes a housing (2) and an atomizer air passage structure as described in any one of claims 1 to 11; the housing (2) is sleeved on the outside of the atomizer bracket (1), and the inner wall of the housing (2) and the atomizer bracket (1) enclose the condensate recovery space (14) to form the condensate recovery space (14), and the top and bottom of the condensate recovery space (14) are provided with sealing structures.

13. An electronic atomizing device, characterized in that, Includes the atomizer as described in claim 12.

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