Atomiser and electronic atomising device

Abstract

The embodiment of the application discloses an atomizer and an electronic atomization device. The atomizer comprises a shell, a mounting seat and an atomization core. The shell has an air outlet channel, and the inside of the mounting seat has an atomization cavity. The atomization core is arranged in the atomization cavity. The atomization core has an atomization surface, the atomization surface faces an air outlet hole of the mounting seat, and the air outlet channel is communicated with the air outlet hole of the mounting seat. An air inlet hole is arranged on the mounting seat and is used for being communicated with the outside atmosphere and the atomization cavity, so that the outside atmosphere can flow into the atomization cavity through the air inlet hole. A distance h is arranged between the atomization surface and the air inlet hole, and a cooling structure is arranged in the air outlet channel, so that the temperature range of aerosol at the air outlet hole is 55 DEG C-85 DEG C. Compared with the existing atomizer, the temperature of the aerosol at the air outlet hole is obviously reduced, and the use experience of a user is improved.

Description

Technical Field

[0001] This application relates to the field of electronic atomization device technology, and more particularly to an atomizer and an electronic atomization device. Background Technology

[0002] An electronic atomizing device is a device that atomizes an aerosol-generating matrix into an aerosol, and it is widely used in daily life. The atomizing core in an electronic atomizing device has an atomizing surface, on which a heating layer is disposed. When the heating layer is energized, it heats the aerosol-generating matrix near the atomizing surface, causing the matrix to atomize and generate an aerosol. The aerosol then flows out of the electronic atomizing device through the outlet for user consumption.

[0003] Typically, the atomizing surface of the atomizer coil is positioned downwards, facing the air intake of the e-cigarette. To increase the amount of aerosol flowing from the e-cigarette, the atomizing surface can also be positioned upwards, facing the air outlet. This significantly shortens the distance between the air outlet and the atomizing surface, increasing the amount of aerosol flowing out. However, positioning the atomizing surface upwards increases the temperature of the aerosol exiting the air outlet, resulting in a poorer user experience. Summary of the Invention

[0004] The atomizer and electronic atomizing device provided in this application embodiment solve the problem that the temperature of the aerosol flowing out of the outlet is high and the user experience is poor when the atomizing surface is set upwards.

[0005] To solve the above-mentioned technical problems, the first technical solution provided in this application is as follows: An atomizer is provided, comprising a housing, a mounting base, and an atomizing core; the housing has an air outlet channel; the mounting base has an atomizing chamber inside; the atomizing core is disposed in the atomizing chamber; the atomizing core has an atomizing surface facing the air outlet of the mounting base, and the air outlet channel is connected to the air outlet of the mounting base; wherein, the mounting base has an air inlet, which is used to communicate with the outside atmosphere and the atomizing chamber, so that the outside atmosphere can flow into the atomizing chamber through the air inlet; a certain distance h is set between the atomizing surface and the air inlet, and a cooling structure is provided in the air outlet channel to keep the temperature range of the aerosol at the air outlet between 55℃ and 85℃.

[0006] The cooling structure causes the air outlet channel to split into multiple sub-air outlet channels at the end furthest from the atomizing core before converging together.

[0007] The cooling structure includes a partition disposed in the air outlet channel to divide the end of the air outlet channel away from the atomizing core into two sub-air outlet channels; the extension direction of the partition is the same as the extension direction of the air outlet channel; the end face of the partition near the air outlet is spaced apart from the air outlet.

[0008] The distance d between the end face of the partition near the air outlet and the air outlet is in the range of 0mm < d ≤ 3mm.

[0009] Wherein, the end of the air outlet channel away from the atomizing core is enlarged in the width direction of the atomizer to form a widened section, and the partition is disposed in the widened section and divides the air outlet channel into two sub-air outlet channels.

[0010] The two sub-air outlet channels are symmetrically arranged along the partition.

[0011] The ratio of the length of the partition to the length of the air outlet channel is 1:5 to 1:4.

[0012] Where h ranges from 0 mm to 0.7 mm.

[0013] Where h is in the range of 0.2mm≤h≤0.5mm.

[0014] The device further includes: a mounting cavity in the housing; a mounting base disposed in the mounting cavity; the mounting base having a top wall and a side wall connected to each other, the top wall and the side wall surrounding the atomizing cavity; the side wall of the mounting base cooperating with the side wall of the mounting cavity to form an air guiding channel; the atomizing core having an atomizing surface on the side near the top wall; wherein the side wall of the mounting base has an air inlet hole so that the air guiding channel communicates with the atomizing cavity.

[0015] The mounting base includes a mounting top cover and a mounting base; the mounting top cover is fitted onto the mounting base; the outer surface of the side wall of the mounting top cover is provided with an air guide groove, the side wall of the mounting cavity and the bottom wall of the air guide groove cooperate to form the air guide channel, and the side of the air guide groove near the top wall of the mounting top cover is provided with an air inlet; the mounting base has an air inlet, and the end of the air guide channel away from the air inlet is connected to the air inlet.

[0016] The cooling structure is disposed within the air outlet channel, and the cooling structure is configured to reduce the temperature of the aerosol flowing through the air outlet channel.

[0017] The cooling structure is a protrusion on the inner wall of the air outlet channel.

[0018] Wherein, the height of the protrusion is 0.3mm-0.6mm; and / or, the ratio of the distance between the centers of adjacent protrusions to the height of the protrusion is 7-20.

[0019] Wherein, the length of the air outlet channel is less than or equal to 20mm, and the height of the protrusion is 0.6mm-0.7mm;

[0020] Alternatively, the length of the air outlet channel is greater than 20mm and less than or equal to 30mm, and the height of the protrusion is 0.5mm-0.6mm;

[0021] Alternatively, the length of the air outlet channel is greater than 30mm and less than or equal to 40mm, and the height of the protrusion is 0.4mm-0.5mm;

[0022] Alternatively, the length of the air outlet channel is greater than 40mm and less than or equal to 50mm, and the height of the protrusion is 0.35mm-0.45mm;

[0023] Alternatively, the length of the air outlet channel is greater than 50mm, and the height of the protrusion is 0.3mm-0.4mm.

[0024] Wherein, along the height direction of the protrusion, the cross-section of the protrusion is square, and the ratio of the distance between the centers of adjacent protrusions to the height of the protrusion is 10-20;

[0025] Alternatively, along the height direction of the protrusion, the cross-section of the protrusion is circular, and the ratio of the distance between the centers of adjacent protrusions to the height of the protrusion is 7-20.

[0026] To solve the above-mentioned technical problems, the second technical solution provided in this application is: to provide an electronic atomizing device, including a battery assembly and an atomizer, wherein the battery assembly is used to power the atomizer, and the atomizer is any one of the atomizers described above.

[0027] The atomizer and electronic atomizing device provided in this application include a housing, a mounting base, and an atomizing core. The housing has an air outlet channel, and the mounting base has an atomizing chamber inside. The atomizing core is disposed in the atomizing chamber. The atomizing core has an atomizing surface facing the air outlet of the mounting base, and the air outlet channel is connected to the air outlet of the mounting base. The mounting base has an air inlet for communicating with the outside atmosphere and the atomizing chamber, so that the outside atmosphere can flow into the atomizing chamber through the air inlet. A certain distance h is set between the atomizing surface and the air inlet, and a cooling structure is provided in the air outlet channel to keep the temperature range of the aerosol at the air outlet between 55℃ and 85℃. Compared with existing atomizers, the aerosol temperature at the air outlet is significantly reduced, improving the user experience. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 A functional block diagram of the electronic atomizing device provided in this application;

[0030] Figure 2 A three-dimensional structural schematic diagram of the first embodiment of the atomizer provided in this application;

[0031] Figure 3 for Figure 2 A schematic diagram of the exploded structure of an atomizer;

[0032] Figure 4 for Figure 2 A cross-sectional view of the atomizer along the AA direction;

[0033] Figure 5 for Figure 3 A three-dimensional structural diagram of the top cover installed at one angle;

[0034] Figure 6 for Figure 3 A three-dimensional structural diagram of the top cover installed in the middle from another angle;

[0035] Figure 7 for Figure 3 A schematic diagram of a three-dimensional structure of the atomizing core;

[0036] Figure 8 for Figure 3 A cross-sectional view of the mounting bracket and atomizer core after assembly;

[0037] Figure 9 for Figure 2 A partial cross-sectional view of the atomizer along the BB direction;

[0038] Figure 10 for Figure 3 Another cross-sectional view after the mounting bracket and atomizer core are assembled;

[0039] Figure 11 for Figure 2 A local velocity diagram of the gas inside the atomizer;

[0040] Figure 12 for Figure 2 A local temperature distribution diagram inside the atomizer;

[0041] Figure 13 A graph showing the temperature of the aerosol at the outlet relative to the spacing provided in this application;

[0042] Figure 14 A graph showing the aerosol volume at the spacing and outlet provided for this application;

[0043] Figure 15 A bar chart showing the aerosol quantity and temperature at the spacing-exit port provided in this application;

[0044] Figure 16 for Figure 3 An exploded structural diagram of a device that includes a top cover, atomizing core, a second seal, a third seal, and a mounting base.

[0045] Figure 17 for Figure 3 Exploded view of the mounting base and end cap;

[0046] Figure 18 for Figure 3 Another exploded structural diagram showing the installation of the top cover, atomizing core, second seal, third seal, and mounting base;

[0047] Figure 19 This is a partial structural schematic diagram of the second embodiment of the atomizer provided in this application;

[0048] Figure 20 This is a schematic diagram of the structure of the first experimental piece;

[0049] Figure 21 This is a schematic diagram of the structure of the second experimental piece;

[0050] Figure 22 This is a diagram showing the airflow temperature distribution at the outlet of the first experimental piece.

[0051] Figure 23 This is a diagram showing the airflow temperature distribution at the outlet of the second experimental piece.

[0052] Figure 24 A schematic diagram showing the variation of the local surface heat transfer coefficient corresponding to different boundary layer morphologies;

[0053] Figure 25 for Figure 19 A schematic diagram of the airflow path within the air outlet channel;

[0054] Figure 26 A velocity field distribution diagram within the air outlet channel of an existing atomizer;

[0055] Figure 27 A velocity field distribution diagram within the air outlet channel in the second embodiment of the atomizer provided in this application;

[0056] Figure 28 for Figure 19 A schematic diagram of a structure where the cross-section of the central protrusion is square;

[0057] Figure 29 This is a schematic diagram of a structure in another embodiment where the protrusion has a circular cross-section;

[0058] Figure 30 The graph shows the variation of suction resistance with the height of the protrusion for different outlet channel lengths.

[0059] Figure 31 A temperature distribution diagram of the air outlet corresponding to different protrusion heights;

[0060] Figure 32 A schematic diagram of the flow field calculation for a convex cross-section with a square shape;

[0061] Figure 33 This is a graph showing the variation of the heat transfer coefficient at different heights of a square cross-section protrusion.

[0062] Figure 34 The velocity field distribution diagrams corresponding to different P / H values ​​for the positive direction cross-section bulge;

[0063] Figure 35 This is a graph showing how the heat transfer coefficient varies with different P / H values ​​depending on the positive cross-sectional bulge.

[0064] Figure 36 A schematic diagram of flow field calculation for a convex cross-section with a circular cross-section;

[0065] Figure 37 This is a graph showing the variation of the heat transfer coefficient at different heights of a circular cross-section protrusion.

[0066] Figure 38 The velocity field distribution diagrams corresponding to different P / H values ​​for circular cross-section protrusions;

[0067] Figure 39 This is a graph showing how the heat transfer coefficient varies with different P / H values ​​for a circular cross-section bulge.

[0068] Figure 40 This is a partial structural schematic diagram of the third embodiment of the atomizer provided in this application;

[0069] Figure 41 This is a schematic diagram of a partial structure of an existing atomizer;

[0070] Figure 42 for Figure 41 The provided aerosol temperature distribution cloud map at the outlet of the atomizer;

[0071] Figure 43 for Figure 40 The provided aerosol temperature distribution cloud map at the outlet of the atomizer;

[0072] Figure 44 for Figure 40The provided atomizer's air outlet channel has several velocity vector distribution diagrams on the surfaces near the air outlet end;

[0073] Figure 45 The graph shows the relationship between the maximum temperature of the aerosol at the outlet and the interval distance d.

[0074] Figure 46 This is a graph showing the relationship between the aerosol temperature at the center position A of the air outlet and the interval distance d. Detailed Implementation

[0075] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0076] In the following description, specific details such as particular system architectures, interfaces, and technologies are presented for illustrative purposes rather than for limiting purposes, in order to provide a thorough understanding of this application.

[0077] The terms "first," "second," and "third" in this application are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the stated features. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movement of components in a specific posture (as shown in the figures). If the specific posture changes, the directional indications also change accordingly. The terms "comprising" and "having," and any variations thereof, in the embodiments of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or components inherent to these processes, methods, products, or devices.

[0078] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0079] The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0080] Please see Figure 1 , Figure 1 This is a functional module schematic diagram of the electronic atomizing device provided in this application. In this embodiment, an electronic atomizing device is provided. This electronic atomizing device can be used to atomize an aerosol generation matrix. The electronic atomizing device includes an atomizer 11 and a battery assembly 12 that are electrically connected to each other.

[0081] The atomizer 11 stores and atomizes the aerosol-generating matrix to form an aerosol that can be inhaled by the user. The atomizer 11 can be used in various fields, such as medical, beauty, and recreational inhalation. In one specific embodiment, the atomizer 11 can be used in an electronic aerosolization device to atomize the matrix to be atomized and generate an aerosol for inhalation; the following embodiments all use this as an example. Of course, in other embodiments, the atomizer 11 can also be applied to hairspray devices to atomize hairspray used for hair styling; or to devices for treating upper and lower respiratory system diseases to atomize medical drugs.

[0082] The specific structure and function of the atomizer 11 can be found in any of the following embodiments, and the same or similar technical effects can be achieved. They will not be described again here.

[0083] Battery assembly 12 includes a battery (not shown) and a controller (not shown). The battery powers the atomizer 11, enabling it to atomize aerosol to generate a matrix aerosol; the controller controls the operation of the atomizer 11. Battery assembly 12 also includes other components such as a battery holder and an airflow sensor.

[0084] The atomizer 11 and the battery assembly 12 can be integrated as one unit or detachably connected, depending on the specific needs of the design.

[0085] Please see Figure 2 , Figure 3 and Figure 4 , Figure 2 This is a three-dimensional structural diagram of the atomizer according to the first embodiment provided in this embodiment. Figure 3 for Figure 2 A schematic diagram of the exploded structure of an atomizer. Figure 4 for Figure 2 A cross-sectional view of the atomizer along the AA direction.

[0086] In this embodiment, an atomizer 11 is provided, which includes a housing 111, a mounting base 112, an atomizing core 113, and an end cap 114.

[0087] The housing 111 contains a liquid storage chamber 1111, an air outlet channel 1112, and an installation cavity 1113. The liquid storage chamber 1111 and the air outlet channel 1112 are respectively connected to the installation cavity 1113.

[0088] The liquid storage chamber 1111 is used to store the aerosol generation matrix. The shell 111 can be made of metals such as aluminum and stainless steel, or it can be made of plastic, as long as it can store the aerosol generation matrix and does not react with it. The shape, size, and position of the liquid storage chamber 1111 are not limited and can be designed as needed. In this embodiment, the liquid storage chamber 1111 and the gas outlet channel 1112 are arranged side by side on the same side of the mounting cavity 1113, and the liquid storage chamber 1111 surrounds the gas outlet channel 1112.

[0089] The mounting base 112 is disposed in the mounting cavity 1113. The mounting base 112 has an atomizing cavity 1123, and the atomizing core 113 is disposed in the atomizing cavity 1123. Specifically, in this embodiment, the mounting base 112 further includes a mounting top cover 1121 and a mounting base 1122, with the mounting top cover 1121 sleeved on the side of the mounting base 1122 near the liquid storage cavity 1111. Please refer to... Figure 5 and Figure 6 , Figure 5 for Figure 3 A three-dimensional structural diagram showing one angle of the top cover installation. Figure 6 for Figure 3 A three-dimensional structural diagram of the mounting cover 1121 from another angle. The mounting cover 1121 includes a top wall 1121a and a side wall 1121b connected to each other. The side wall 1121b of the mounting cover 1121 can be an annular side wall, located on the side of the top wall 1121a away from the liquid storage chamber 1111. The top wall 1121a and the side wall 1121b of the mounting cover 1121 can be integrally formed. The top wall 1121a and the side wall 1121b of the mounting cover 1121 surround and form an atomizing chamber 1123. In other embodiments, the mounting cover 1121 and the mounting base 1122 can cooperate to form the atomizing chamber 1123, and the manner in which the mounting base 112 forms the atomizing chamber 1123 is not limited to the manner mentioned in this application.

[0090] Please see Figure 3 and Figure 4The top wall 1121a of the mounting cover 1121 has an air outlet 1121c. One end of the air outlet 1121c is connected to the atomizing chamber 1123, and the other end is connected to the air outlet channel 1112, so that the atomizing chamber 1123 and the air outlet channel 1112 are connected. The atomized aerosol from the atomizing core 113 mixes with cold air and flows into the air outlet channel 1112. Furthermore, the end of the air outlet channel 1112 away from the mounting chamber 1113 has an air outlet 1112a, that is, the port of one end of the air outlet channel 1112 is the air outlet 1112a. The air outlet channel 1112 is connected to the outside atmosphere through the air outlet 1112a, so that the aerosol in the air outlet channel 1112 can flow out of the atomizer 11 for the user.

[0091] Please refer to Figure 7 , Figure 7 for Figure 3 A schematic diagram of a three-dimensional structure of the atomizing core;

[0092] The atomizing core 113 includes a substrate 1133, a heating layer 1134, and two electrodes 1135. The substrate 1133 has an atomizing surface 1131 on the side near the liquid storage chamber 1111; that is, the atomizing core 113 has an atomizing surface. The heating layer 1134 and the two electrodes 1135 are disposed on the atomizing surface 1131. The substrate 1133 can store and guide the aerosol generation matrix. The material of the substrate 1133 can be a porous material, such as porous ceramic. The porous ceramic can utilize capillary forces to guide the aerosol generation matrix to the heating layer 1134, which can then heat and atomize it to form an aerosol. The heating layer 1134 can be a heating wire, heating mesh, heating film, heating circuit, etc., which can be selected according to needs. Two electrodes 1135 are disposed at both ends of the heating layer 1134. The two electrodes 1135 can be electrically connected to the battery assembly 12 through connectors so that when the two electrodes 1135 are energized, the heating layer 1134 between the two electrodes 1135 is energized to heat the aerosol and generate a matrix.

[0093] In this embodiment, the atomizing surface of the atomizing core 113 faces the air outlet 1121c of the mounting base 112, that is, the atomizing surface is set upwards.

[0094] Please refer to Figure 3 and Figure 4The atomizer 11 also includes a first sealing element 115, a second sealing element 116, and a third sealing element 117. The first sealing element 115 is disposed at the end of the mounting top cover 1121 near the liquid storage chamber 1111 to achieve a seal between the mounting top cover 1121 and the housing 111. The second sealing element 116 is sleeved on the atomizing core 113 to achieve a seal between the atomizing core 113 and the mounting top cover 1121. The third sealing element 117 is disposed between the mounting base 1122 and the atomizing core 113 to achieve a seal between the atomizing core 113 and the mounting base 1122, and between the mounting top cover 1121 and the mounting base 1122. The materials of the first sealing element 115, the second sealing element 116, and the third sealing element 117 can be any sealing material with a certain degree of flexibility and resistance to a certain temperature. In this embodiment, the materials of the first sealing element 115, the second sealing element 116, and the third sealing element 117 are silicone. The shape and size of the first seal 115, the second seal 116 and the third seal 117 are not limited and can be designed as needed.

[0095] Please see Figure 5 and Figure 8 , Figure 8 for Figure 3 A cross-sectional view of the mounting base and atomizer core after assembly.

[0096] The top wall 1121a of the mounting top cover 1121 is also provided with a liquid discharge hole 1121d. One end of the liquid discharge hole 1121d is connected to the liquid storage chamber 1111, and the other end is connected to the atomization chamber 1123, so that the aerosol generating matrix in the liquid storage chamber 1111 can flow into the atomization chamber 1123 through the liquid discharge hole 1121d. The number of liquid discharge holes 1121d can be one or more. In this embodiment, there are two liquid discharge holes 1121d, which are symmetrically arranged on opposite sides of the air outlet hole 1121c.

[0097] In this embodiment, the mounting base 112 has a liquid guiding channel 1124. Specifically, the liquid guiding channel 1124 may be formed in the mounting top cover 1121, for example, the liquid guiding channel 1124 may be formed in the side wall 1121b of the mounting top cover 1121, or the second sealing member 116 and the third sealing member 117 may cooperate with the side wall 1121b of the mounting top cover 1121 to form the liquid guiding channel 1124. The liquid guiding channel 1124 communicates with the liquid outlet 1121d so that the liquid guiding channel 1124 communicates with the liquid storage chamber 1111. The liquid guiding channel 1124 can guide the aerosol generating matrix in the liquid storage chamber 1111 to the side wall of the atomizing core 113 and / or the side of the atomizing core 113 away from the air outlet 1121c. In this embodiment, the liquid guiding channel 1124 guides the aerosol generating matrix to the side of the atomizing core 113 away from the air outlet 1121c. Specifically, the third sealing member 117 has a liquid guiding groove 1171 at one end near the atomizing core 113, and the liquid guiding groove 1171 communicates with the liquid guiding channel 1124. The liquid guiding groove 1171 can guide the aerosol generating matrix in the liquid guiding channel 1124 to the side of the atomizing core 113 away from the top wall 1121a of the mounting top cover 1121, so that the atomizing core 113 can heat and atomize the aerosol generating matrix to generate aerosol. In other embodiments, the second sealing member 116 may also have a liquid guiding groove 1171 to guide the aerosol generating matrix in the liquid guiding channel 1124 to the side wall of the atomizing core 113. By setting up the liquid guiding channel 1124 and the liquid guiding groove 1171, the aerosol generating matrix in the liquid storage chamber 1111 can flow to the side of the atomizing core 113 or the side opposite to the atomizing surface 1131, so that the atomizing core 113 can absorb the aerosol generating matrix and guide the aerosol generating matrix to the atomizing surface 1131 for heating to form an aerosol.

[0098] Please see Figure 9 , Figure 9 for Figure 2 A partial cross-sectional view of the atomizer along the BB direction. Figure 9 The arrows in the diagram indicate the airflow path in atomizer 11.

[0099] In one embodiment, the sidewall 1121b of the mounting base 112 cooperates with the sidewall 1113a of the mounting cavity 1113 to form an air guide channel 1125. One end of the air guide channel 1125 is connected to the air inlet 1122a of the atomizer 11, so that external atmospheric energy can enter the air guide channel 1125 through the air inlet 1122a of the atomizer 11; the other end of the air guide channel 1125 is connected to the atomizing cavity 1123, so that the airflow in the air guide channel 1125 can enter the atomizing cavity 1123.

[0100] Furthermore, the mounting base 112 is provided with an air inlet 1125a, which can be provided on the side wall 1121b of the mounting top cover 1121. One end of the air inlet 1125a is connected to the air guide channel 1125, and the other end is connected to the atomizing chamber 1123, so that the airflow in the air guide channel 1125 enters the atomizing chamber 1123 through the air inlet 1125a. The air inlet 1125a can be located on the side of the atomizing surface 1131 facing the air outlet 1121c. For example, the air inlet 1125a can be located between the atomizing surface 1131 and the air outlet 1121c, so that the airflow entering the atomizing chamber 1123 can carry the aerosol generated by the atomizing surface 1131 of the atomizing core 113, flow through the air outlet 1121c to the air outlet channel 1112, and finally flow out of the atomizer 11 from the air outlet 1112a for user use.

[0101] For details, please refer to Figure 5 and Figure 10 , Figure 10 for Figure 3 Another cross-sectional view after the mounting bracket and atomizer core are assembled.

[0102] In this embodiment, the outer surface of the side wall 1121b of the mounting top cover 1121 is provided with an air guide groove 1121e. The side wall 1113a of the mounting cavity 1113 cooperates with the bottom wall of the air guide groove 1121e to form an air guide channel 1125. An air inlet 1125a is provided on the side of the air guide channel 1125 near the top wall 1121a of the mounting top cover 1121. In other embodiments, the side wall 1113a of the mounting cavity 1113 may also be provided with an air guide groove 1121e, and the side wall 1121b of the mounting base 112 may cooperate with the bottom wall of the air guide groove 1121e to form an air guide channel 1125. The formation of the air guide channel 1125 is not limited to the above-mentioned methods.

[0103] In one embodiment, please refer to Figure 5 and Figure 6One end of the air guide groove 1121e is a closed end, located near the top wall 1121a of the mounting top cover 1121; the other end of the air guide groove 1121e is an open end, extending to the bottom surface 1121f of the mounting top cover 1121. The shape of the air guide groove 1121e can be a rectangle as in this embodiment, or it can be other shapes. The number of air guide grooves 1121e can be one or more. In this embodiment, there are two air guide grooves 1121e, respectively located on the outer surfaces of two opposite side walls 1121b of the mounting top cover 1121. The two air guide grooves 1121e form two air guide channels 1125 with the side wall 1113a of the mounting cavity 1113, and both air guide channels 1125 are connected to the air outlet 1112a of the atomizer 11. Each of the two air guide channels 1121e has an air inlet 1125a at one end near the top wall 1121a where the top cover 1121 is mounted. The airflow entering the atomizer 11 from the air outlet 1112a flows to the atomizing chamber 1123 through the two air guide channels 1125.

[0104] In this embodiment, the bottom surface 1121g of the air guide groove 1121e near the top wall 1121a of the mounting top cover 1121 slopes inward toward the interior of the mounting top cover 1121. Simultaneously, the air inlet 1122a is located at the end of the air guide groove 1121e near the top wall 1121a of the mounting top cover 1121. The depth of the air guide groove 1121e near the top wall 1121a of the mounting top cover 1121 increases, and the closer it is to the top wall 1121a of the mounting top cover 1121, the greater the depth of the air guide groove 1121e, so that the airflow in the air guide channel 1125 can be more easily guided from the air guide channel 1125 to the air outlet 1121c. In other embodiments, the entire bottom surface 1121g of the air guide groove 1121e may slope inward toward the interior of the mounting top cover 1121.

[0105] The width of the air inlet 1125a can be less than or equal to the width of the air guide groove 1121e. In this embodiment, the width of the air inlet 1125a is equal to the width of the air guide groove 1121e. The wider the air inlet 1125a, the greater the airflow that can pass through it, which is beneficial for increasing the amount of aerosol flowing out from the air outlet 1112a.

[0106] like Figure 10 As shown, there is a gap between the air inlet 1125a and the atomizing surface 1131 of the atomizing core 113. Specifically, there is a gap between the atomizing surface 1131 and the bottom surface 1125b of the air inlet 1125a near the atomizing surface 1131, and the distance of the gap is h.

[0107] Please refer to Figure 11 , Figure 11 for Figure 2 The local velocity diagram of the gas inside the atomizer, specifically, is... Figure 11 The diagram shows a local flow velocity at atomization chamber 1123. The aerosol generated by atomization surface 1131 forms a vortex region near atomization surface 1131, which is the area enclosed by the dashed box. The cold air flowing into atomization chamber 1123 from air guide channel 1125 will undergo thermal convection with the hot aerosol generated by atomization surface 1131.

[0108] from Figure 11 It can be seen that when h=0, that is, when there is no gap between the air inlet 1125a and the atomizing surface 1131 of the atomizing core 113, the vortex area near the atomizing surface 1131 is small, the thermal convection between cold air and hot aerosol is large, the airflow temperature after the cold air and aerosol are mixed is high, and the temperature of the aerosol flowing out of the air outlet 1112a of the atomizer 11 is high, resulting in a poor user experience.

[0109] from Figure 11 It can also be seen that when h > 0, that is, when there is a gap between the air inlet 1125a and the atomizing surface 1131 of the atomizing core 113, compared with the structure where h = 0, the vortex region near the atomizing surface 1131 is larger, and the larger the value of h, that is, the larger the gap, the larger the vortex region near the atomizing surface 1131. Therefore, by setting a gap between the air inlet 1125a and the atomizing surface 1131 of the atomizing core 113, the increase in the vortex region near the atomizing surface 1131 reduces the thermal convection between cold air and hot aerosol, thereby lowering the temperature of the airflow after the cold air and aerosol are mixed, and reducing the temperature of the aerosol flowing out of the air outlet 1112a of the atomizer 11, thus improving the user experience.

[0110] Please refer to the following for further information. Figure 12 , Figure 12 for Figure 2 The local temperature distribution diagram inside the atomizer, specifically, is... Figure 12 The image shown is a local temperature diagram at atomization chamber 1123. From... Figure 12 It can be seen that when h = 0, the vortex region is small, and the temperature of the aerosol convection with the cold air is high. This results in a high temperature of the airflow after the cold air and aerosol mix, and consequently, a high temperature of the aerosol exiting the atomizer 11 at the air outlet 1112a, leading to a poor user experience. When h > 0, the vortex region near the atomizing surface 1131 increases. Compared to when h = 0, the temperature of the aerosol convection with the cold air decreases. Furthermore, the larger the value of h, the larger the vortex region and the lower the temperature of the aerosol convection with the cold air. Therefore, by setting a gap between the air inlet 1125a and the atomizing surface 1131 of the atomizing core 113, the temperature of the airflow after the cold air and aerosol mix can be reduced, and the temperature of the aerosol exiting the atomizer 11 at the air outlet 1112a can be decreased, thereby improving the user experience.

[0111] Specifically, the value of h cannot be too large. When the value of h is too large, the vortex area of ​​the aerosol is too large, and there is too little aerosol convection with the cold air, which will result in too little aerosol flowing out of the air outlet 1112a of the atomizer 11.

[0112] In this embodiment, the atomizer 11 used in the experiment has the following parameters: the diameter of the air outlet channel 1112 is 2.5 mm, the length is 29.4 mm, the initial temperature of the S-shaped heating layer 1134 on the atomizing core 113 is 250°C, the atomization volume is 3 s / 9 mg, and the input power of the battery assembly 12 to the atomizing core 113 is 6.5 W. Of course, we can also use other atomizers 11 with different parameters, but we can still use the experimental results to plot a curve of the spacing versus the amount of vapor produced by the atomizer at the air outlet, which has a similar mathematical relationship.

[0113] Please refer to Table 1. Figure 13 as well as Figure 14 Table 1 shows the experimental results of the temperature and amount of aerosol flowing out of the outlet 1112a of the atomizer 11 when h is 0 mm, 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm and 0.7 mm respectively. Figure 13 The aerosol temperature curve at the spacing versus outlet 1112a is plotted based on the experimental results in Table 1. Figure 14 The graph is a curve showing the spacing versus the amount of aerosol at the outlet, based on the experimental results in Table 1.

[0114] Table 1

[0115]

[0116] The experimental results show that when h = 0, the amount of aerosol flowing out of the outlet 1112a of the atomizer 11 is relatively large, but the temperature of the aerosol flowing out of the outlet 1112a of the atomizer 11 is also relatively high, resulting in a poor user experience. When h > 0, the temperature of the aerosol flowing out of the outlet 1112a of the atomizer 11 decreases, and the larger h is, the more significantly the temperature of the aerosol flowing out of the outlet 1112a of the atomizer 11 decreases, but the amount of aerosol flowing out of the outlet 1112a of the atomizer 11 decreases with increasing h. When h = 0.7, the amount of aerosol flowing out of the outlet 1112a of the atomizer 11 decreases to 7.19 mg / puff.

[0117] Therefore, a certain distance h can be set between the atomizing surface 1131 and the air inlet 1125a. For example, for the atomizer used in the above experiment, the range of h is 0mm < h ≤ 0.7mm. The value of h can be 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, etc. Preferably, 0.2mm ≤ h ≤ 0.5mm. By setting the distance h between the atomizing surface 1131 and the air inlet 1125a to reduce the temperature of the aerosol at the air outlet 1112a, the spacing between the atomizing surface 1131 and the bottom surface 1125b of the air inlet 1125a near the atomizing surface 1131 can be set within a suitable range. This ensures that while reducing the temperature of the aerosol flowing out of the air outlet 1112a of the atomizer 11, the amount of vapor from the aerosol flowing out of the air outlet 1112a of the atomizer 11 is not too small, which is beneficial to improving the user experience.

[0118] In this embodiment, the inventors also attempted to reduce the temperature of the aerosol at the air outlet 1112a by increasing the length of the air outlet channel 1112. Experiments showed that when the length of the air outlet channel 1112 was 29.4 mm, the temperature of the aerosol at the air outlet 1112a was 93.16°C; when the length of the air outlet channel 1112 increased by 13 mm to 42.4 mm, the temperature of the aerosol at the air outlet 1112a was 87°C. Although the temperature decreased by 6.17°C, the length of the air outlet channel 1112 increased by more than 50%, which is unacceptable in product design. Therefore, the technical solution of setting a certain distance h between the atomizing surface 1131 and the air inlet 1125a has a significant improvement in performance and effect. (See reference...) Figure 15 , Figure 15 The bar chart shows the experimental results of the temperature and amount of aerosol flowing out of the outlet 1112a of the atomizer 11 when h is 0 mm and 0.4 mm respectively. Figure 15 As can be seen, when h = 0 mm, the aerosol temperature at outlet 1112a is 102.7℃ and the aerosol volume at outlet 1112a is 7.54 mg / puff; when h = 0.4 mm, the aerosol temperature at outlet 1112a is 86.4℃ and the aerosol volume at outlet 1112a is 7.33 mg / puff; when h = 0.4 mm, the temperature of the aerosol flowing out of outlet 1112a of atomizer 11 is greatly reduced, and the aerosol volume flowing out of outlet 1112a of atomizer 11 is not too small.

[0119] In one embodiment, such as Figure 16 As shown, Figure 16 for Figure 3 An exploded structural diagram of a device that includes a top cover, atomizing core, a second seal, a third seal, and a mounting base.

[0120] The mounting base 1122 includes a bottom 1122b and a support portion 1122c. A top cover 1121 is fitted onto the support portion 1122c and abuts against the bottom 1122b. The support portion 1122c is located within the atomizing chamber 1123, and the atomizing core 113 is located on the side of the support portion 1122c near the top wall of the top cover 1121. By adjusting the height of the support portion 1122c, the position of the atomizing core 113 can be adjusted, thereby adjusting the distance h between the air inlet 1125a and the atomizing surface 1131 of the atomizing core 113.

[0121] In one embodiment, such as Figure 2 and Figure 17 As shown, Figure 17 for Figure 3 Exploded view of the mounting base and end cap.

[0122] The end cap 114 covers the end of the housing 111 away from the air outlet 1112a. For example, the end cap 114 can be sleeved on the end of the housing 111 away from the air outlet 1112a, and the housing 111 and the end cap 114 are detachably connected.

[0123] Furthermore, the mounting base 1122 has an air inlet 1122a on the side opposite to the mounting top cover 1121, and the end cover 114 has a through hole 1141 that communicates with the external atmosphere, and the air inlet 1122a communicates with the through hole 1141 so that the outside atmosphere can enter the air inlet 1122a.

[0124] In this embodiment, the bottom 1122b of the mounting base 1122 has a first groove 1122d on the side facing away from the support portion 1122c. The first groove 1122d serves as an air inlet 1125a and communicates with the through hole 1141. The end of the first groove 1122d near the air guide groove 1121e has a first opening 1122e penetrating the bottom 1122b of the mounting base 1122. The first opening 1122e can be a through hole or a notch located at the edge of the bottom 1122b. The first opening 1122e connects the first groove 1122d with the end of the air guide groove 1121e near the bottom 1122b, allowing airflow to flow from the first groove 1122d into the air guide groove 1121e.

[0125] The number of first openings 1122e can be the same as the number of air guide grooves 1121e. In this embodiment, there are two first openings 1122e, which are arranged opposite to the two air guide grooves 1121e. The two first openings 1122e respectively connect the first groove 1122d to the two air guide grooves 1121e.

[0126] In one embodiment, such as Figure 17 and Figure 18 As shown, Figure 18 for Figure 3 Another exploded structural diagram showing the installation of the top cover, atomizing core, second seal, third seal, and mounting base.

[0127] The atomizer 11 further includes two electrode connectors 118. One end of each electrode connector 118 is electrically connected to an electrode 1135; the other end is disposed on the surface of the bottom 1122b of the mounting base 1122, opposite to the support portion 1122c, and exposed through a through hole 1141 of the end cap 114, so that the electrode connector 118 can be electrically connected to the battery assembly 12, thereby enabling the battery assembly 12 to supply power to the atomizing core 113. In one embodiment, the two electrode connectors 118 are respectively disposed on both sides of the atomizing core 113, and respectively disposed corresponding to the positions of the electrodes 1135. That is, the two electrode connectors 118 are arranged in a rotationally symmetrical manner.

[0128] Furthermore, the surface of the bottom 1122b facing away from the support portion 1122c is provided with two second grooves 1122f, which are respectively used to accommodate the ends of the two electrode connectors 118 away from the atomizing core 113. Specifically, the side of the second groove 1122f near the housing 111 has a second opening 1122g. The second opening 1122g can be a notch provided on the edge of the bottom 1122b. The end of each electrode connector 118 away from the atomizing core 113 passes through the corresponding second opening 1122g and is disposed in the corresponding second groove 1122f. The arrangement of the electrode connectors 118 is not limited to the arrangement provided in this application, and can also be other arrangements, as long as they can electrically connect the two electrodes 1135 of the atomizing core 113 to the battery assembly 12.

[0129] Please refer to Figure 19 , Figure 19 This is a partial structural schematic diagram of the second embodiment of the atomizer provided in this application.

[0130] In the second embodiment of the atomizer 11, the structure of the atomizer 11 is basically the same as that of the first embodiment of the atomizer 11, except that the atomizer 11 includes a cooling structure 119, which is disposed in the air outlet channel 1112. The cooling structure 119 is configured to reduce the temperature of the aerosol flowing through the air outlet channel 1112.

[0131] By setting a cooling structure 119 in the air outlet channel 1112, the flow state of the aerosol near the wall of the air outlet channel 1112 is interfered with, thereby increasing the heat transfer coefficient of the wall of the air outlet channel 1112, which in turn reduces the temperature of the aerosol flowing out of the air outlet 1112a of the atomizer 11, thus improving the user experience.

[0132] It is understandable that, given the cooling structure 119 is used to reduce the temperature of the aerosol at the air outlet 1112a, the distance h between the atomizing surface of the atomizing core 113 and the air inlet 1125a is optional (as specifically described in the first embodiment of the atomizer 11: the distance h between the atomizing surface of the atomizing core 113 and the air inlet 1125a). Compared to only setting the cooling structure 119 within the air outlet channel 1112, setting the distance h between the atomizing surface of the atomizing core 113 and the air inlet 1125a as described above, based on the cooling structure 119 within the air outlet channel 1112, can better reduce the temperature of the aerosol at the air outlet 1112a. The method used to reduce the temperature of the aerosol at the air outlet 1112a can be designed according to specific needs.

[0133] The cooling structure 119 absorbs heat from the aerosol and interferes with the flow field near the wall of the outlet channel 1112, thereby improving the heat exchange efficiency between the aerosol and the wall of the outlet channel 1112. In one specific embodiment, the cooling structure 119 is a spiral (not shown), which is disposed within the outlet channel 1112 and spaced apart from the inner wall of the outlet channel 1112. This spiral interferes with the flow field near the wall of the outlet channel 1112, improving the heat exchange efficiency between the aerosol and the wall of the outlet channel 1112, thus reducing the temperature of the aerosol at the outlet 1112a. The spiral can be fixed within the outlet channel 1112 by a fixing structure. Preferably, the spiral is made of a metal spring, which is simple to manufacture, and metal has better heat absorption than other materials, further reducing the temperature of the aerosol at the outlet 1112a.

[0134] In one specific embodiment, the cooling structure 119 is a protrusion 1191 disposed on the inner wall surface of the air outlet channel 1112. Optionally, the protrusion 1191 is integrally formed with the side wall of the air outlet channel 1112; that is, similar to a corrugated tube structure. Optionally, the cooling structure 119 is an independent component, with a spiral member (not shown) disposed inside the air outlet channel 1112, the outer wall surface of the spiral member fitting against the inner wall surface of the air outlet channel 1112, so that the spiral member serves as a protrusion 1191 on the inner wall surface of the air outlet channel 1112. The inner wall surface of the air outlet channel 1112 is a smooth surface, and the spiral member is fixed by the frictional force between the spiral member and the air outlet channel 1112; or, the inner wall surface of the air outlet channel 1112 is provided with a spiral groove that mates with the spiral member to fix the spiral member, and the diameter of the spiral member is greater than the depth of the spiral groove to form the protrusion 1191. For example, during assembly, the spiral component is rotated and inserted into the spiral groove of the air outlet 1112. Preferably, the spiral component is a metal spring, as metal has better heat absorption and conduction effects than other materials, which is beneficial for further reducing the temperature of the aerosol at the air outlet 1112a. In one embodiment, the wire diameter of the metal spring is 0.2mm-0.3mm, the wire diameter of the metal spring is the height of the formed protrusion 1191, and the turn spacing of the metal spring is the distance between adjacent protrusions 1191; wherein, the wire diameter of the metal spring is the diameter of the metal wire used to make the metal spring. For example, when the wire diameter of the metal spring is 0.2mm-0.3mm, the diameter of the metal spring is 3mm, and the length of the air outlet 1112 is 28mm, a better cooling effect can be achieved.

[0135] It is understandable that when the protrusion 1191 is integrally formed with the sidewall of the air outlet channel 1112, the size design of the protrusion 1191 and the size design between adjacent protrusions 1191 can refer to the height of the protrusion 1191 and the ratio of the distance between the centers of adjacent protrusions 1191 to the height of the protrusion 1191, which will be described later. When the protrusion 1191 is formed by a screw, the selection of the screw can also refer to the height of the protrusion 1191 and the ratio of the distance between the centers of adjacent protrusions 1191 to the height of the protrusion 1191, which will be described later.

[0136] Please see Figures 20-23 , Figure 20 This is a schematic diagram of the structure of the first experimental piece. Figure 21 This is a schematic diagram of the structure of the second experimental piece. Figure 22 This is a diagram showing the airflow temperature distribution at the outlet of the first experimental piece. Figure 23 This is a diagram showing the airflow temperature distribution at the outlet of the second experimental piece.

[0137] Figure 20The first experimental piece shown is a circular tube 30 with a smooth inner wall and a length of 50 mm. The left port of the circular tube 30 is the inlet, and the right port of the circular tube 30 is the outlet. The airflow flows from the inlet to the outlet.

[0138] Figure 21 The second experimental specimen shown is a circular tube 30 with protrusions 31 on its inner wall. The length of the circular tube 30 is 50 mm, and the height of the protrusions 31 is 0.5 mm. The cross-sectional shape of the protrusions 31 is square along their height. The protrusions 31 are arranged around the inner surface of the circular tube 30. The left port of the circular tube 30 is the inlet, and the right port is the outlet. Airflow flows from the inlet to the outlet.

[0139] Using the same gas and flowing at the same rate through the first and second experimental specimens respectively, the gas temperature at the outlet of the first experimental specimen (e.g., ...) was obtained. Figure 22 (as shown) and the airflow temperature at the outlet of the second experimental piece (e.g. Figure 23 (As shown). For the gas flow temperature at the outlet of the first experimental piece, the temperature gradually increases from the pipe wall to the center; that is, the highest gas flow temperature at the outlet is in the central region. Figure 22 It can be seen that the highest airflow temperature at the outlet of the first experimental piece is 84.6℃. For the airflow temperature at the outlet of the second experimental piece, the temperature gradually increases from the pipe wall to the center; that is, the highest airflow temperature at the outlet is in the central region. Figure 23 It can be seen that the highest temperature of the airflow at the outlet of the second experimental piece is 73.3℃. This shows that the protrusion 31 on the inner wall of the circular tube 30 reduces the highest temperature at the outlet by 13.4%, demonstrating a significant cooling effect. In other words, the protrusion 1191 (i.e., the cooling structure 119) on the inner wall of the air outlet channel 1112 can significantly reduce the temperature of the aerosol at the air outlet 1112a, thus improving the user experience. The gas used in the experiment is an aerosol or has properties similar to those of an aerosol.

[0140] It is understandable that by setting the protrusions 31 in the second experimental piece at intervals along the inner surface of the circular tube 30, the temperature of the aerosol at the outlet can also be significantly reduced.

[0141] Please refer to Figure 24 and Figure 25 , Figure 24 This diagram illustrates the variation of the local surface heat transfer coefficient corresponding to different boundary layer morphologies. Figure 25 for Figure 19 A schematic diagram of the airflow path within the air outlet channel.

[0142] The principle behind reducing the temperature of the aerosol at the outlet 1112a by setting a protrusion 1191 (i.e., cooling structure 119) inside the outlet channel 1112 is as follows:

[0143] exist Figure 24 In the diagram, the horizontal axis x represents the distance between the fluid and the pipe inlet, and the vertical axis h represents the distance between the fluid and the pipe inlet. x This represents the heat transfer coefficient. Fluid enters the pipe from the inlet, and the boundary layer after entry is classified into laminar, transition, and turbulent boundary layers. The heat transfer coefficient of the turbulent boundary layer is higher than that of the laminar boundary layer. In the laminar boundary layer, heat transfer mainly occurs through conduction. Since air has a low thermal conductivity, the overall heat transfer coefficient is relatively low. Furthermore, the heat transfer coefficient decreases with increasing laminar boundary layer thickness. When the boundary layer transitions from the transition zone to a fully developed turbulent boundary layer, both conduction and convection occur simultaneously, thus maintaining a high local surface heat transfer coefficient. Because some fluid adheres to the pipe wall during flow, a laminar sublayer exists within the turbulent boundary layer.

[0144] Assuming the inner wall of the outlet channel 1112 is smooth, the flow velocity of aerosols within the outlet channel 1112 is typically low, and the flow boundary layer near the wall is close to a laminar flow pattern. Adding the protrusion 1191 structure to the inner wall of the outlet channel 1112 is equivalent to artificially disturbing the flow boundary layer near the wall, causing it to transform from a regular laminar flow pattern to a turbulent flow pattern, such as... Figure 25 As shown, the heat transfer coefficient between the sidewall of the outlet channel 1112 and the aerosol within the outlet channel 1112 is increased. This increased heat transfer coefficient facilitates heat exchange between the aerosol and the sidewall of the outlet channel 1112, allowing more heat to be absorbed by the sidewall of the outlet channel 1112, thereby reducing the temperature of the aerosol at the outlet 1112a.

[0145] Please refer to Figure 26 and Figure 27 , Figure 26 This is a velocity field distribution diagram within the air outlet channel of an existing atomizer. Figure 27 A velocity field distribution diagram within the air outlet channel of the second embodiment of the atomizer provided in this application.

[0146] The flow field within the outlet channel 1112 can typically be divided into a near-wall region and a main flow region. Heat exchange between the aerosol and the sidewall of the outlet channel 1112 mainly occurs in the near-wall region. (Reference) Figure 26 and Figure 27 It can be seen that the protrusion 1191 (i.e., cooling structure 119) on the inner wall of the outlet channel 1112 has a greater effect on the aerosols in the near-wall region, transforming the laminar boundary layer state into a turbulent boundary layer state, thereby improving the heat transfer efficiency between the aerosols and the sidewall of the outlet channel 1112, while the aerosols in the mainstream region have a smaller impact. Figure 26 and Figure 27It is known that the flow velocity in the near-wall region is less than 3 m / s^-1, and the flow velocity in the near-wall region increases as it approaches the mainstream region, while the flow velocity in the mainstream region is greater than 3 m / s^-1. In other words, the protrusion 1191 (i.e., the cooling structure 119) on the inner wall of the outlet channel 1112 affects the local flow field near the wall of the outlet channel 1112, but has little impact on the flow field in the mainstream region and other areas, and will not affect the user's aerosol inhalation volume. Here, the flow field is a velocity field.

[0147] In a specific embodiment, the height of the protrusion 1191 is 0.3mm-0.6mm; and / or, the ratio of the distance between the centers of adjacent protrusions 1191 to the height of the protrusion 1191 is 1:20-1:7. By setting the protrusion 1191 to the above dimensions, the effect of reducing the temperature of the aerosol at the outlet 1112a is better. Along the height direction of the protrusion 1191, the cross-sectional shape of the protrusion 1191 can be circular, square, rectangular, triangular, etc., and can be designed according to specific needs. The following details the height of the protrusion 1191 and the ratio of the height of the protrusion 1191 to the distance between the centers of adjacent protrusions 1191, using square and circular cross-sections as examples.

[0148] Please refer to Figure 28 and Figure 29 , Figure 28 for Figure 19 A schematic diagram of a structure where the cross-section of the central protrusion is square. Figure 29 This is a schematic diagram of a structure in another embodiment where the protrusion has a circular cross-section.

[0149] exist Figure 28 In the middle, along the height direction of protrusion 1191, the cross-section of protrusion 1191 is square. Figure 29 In the middle, along the height direction of protrusion 1191, the cross-section of protrusion 1191 is circular. Figure 28 and Figure 29 In the diagram, the height of each protrusion 1191 is represented by "H", and the distance between the centers of adjacent protrusions 1191 is represented by "P".

[0150] The height of protrusion 1191 has a significant impact on heat exchange efficiency and the suction resistance of atomizer 11. Therefore, the height of protrusion 1191 can be designed by comprehensively considering the cooling effect of the aerosol at outlet 1112a and the suction resistance of atomizer 11. The distance between the centers of adjacent protrusions 1191 affects the flow field near the wall of outlet channel 1112. The flow field near the wall of outlet channel 1112 is also related to the height of protrusion 1191. Therefore, the distance between the centers of adjacent protrusions 1191 can be designed through flow field analysis and the height of protrusion 1191.

[0151] It is understandable that when the dimensions of the protrusions 1191 (e.g., the cross-sectional area of ​​the protrusions 1191 along the same direction) are not significantly different, the cross-sectional shape has a relatively small impact on the draw resistance. Based on the draw resistance requirements of the atomizer 11 design standard, the upper limit of the draw resistance additionally caused by the protrusions 1191 is set at 100 Pa. Taking a square cross-section of the protrusion 1191 as an example, the relationship between the height of the protrusion 1191, the length of the air outlet channel 1112, and the draw resistance of the atomizer 11 is studied, and the optimal value for the height of the protrusion 1191 is determined accordingly.

[0152] Research results are as follows Figure 30 and Figure 31 As shown, Figure 30 This is a graph showing the variation of suction resistance with bulge height for different outlet channel lengths. Figure 31 This is a temperature distribution diagram of the air outlet corresponding to different protrusion heights.

[0153] Depend on Figure 30 It can be seen that the suction resistance of the air outlet channel 1112 increases with the increase of the height of the protrusion 1191 and the length of the air outlet channel 1112; the smaller the length of the air outlet channel 1112, the larger the upper limit of the height of the protrusion 1191. For example, when the length of the air outlet channel 1112 is 20mm, the height of the protrusion 1191 can be 0.6mm, or even 0.62mm; therefore, it is preferable that the upper limit of the height of the protrusion 1191 is 0.6mm. The length of the air outlet channel 1112 is... Figure 30 The symbol "L" is used to represent this. The experimental conditions were as follows: the diameter of the exhaust channel 1112 was 3 mm.

[0154] Depend on Figure 31It can be seen that the highest temperature of the aerosol at the outlet 1112a is in the central region. Under the premise that the length of the outlet channel 1112 is the same, without the protrusion 1191, the highest temperature of the aerosol at the outlet 1112a is 84.6℃; when the height of the protrusion 1191 is 0.1mm, the highest temperature of the aerosol at the outlet 1112a is 83.8℃, a decrease of 0.9% compared to without the protrusion 1191; when the height of the protrusion 1191 is 0.2mm, the highest temperature of the aerosol at the outlet 1112a is 81.7℃, a decrease of [missing value] compared to without the protrusion 1191. The temperature was reduced by 3.4%; when the height of protrusion 1191 was 0.3 mm, the highest temperature of the aerosol at outlet 1112a was 78.5℃, a decrease of 7.2% compared to not having protrusion 1191; when the height of protrusion 1191 was 0.4 mm, the highest temperature of the aerosol at outlet 1112a was 75.3℃, a decrease of 11% compared to not having protrusion 1191; when the height of protrusion 1191 was 0.5 mm, the highest temperature of the aerosol at outlet 1112a was 73.3℃, ​​a decrease of 13.4% compared to not having protrusion 1191. That is, the higher the height of protrusion 1191, the lower the highest temperature of the aerosol at outlet 1112a, and the better the cooling effect; preferably, the height of protrusion 1191 is greater than or equal to 0.3 mm. The experimental conditions were as follows: the diameter of the air outlet channel 1112 was 3 mm, and the temperature of the aerosol entering and exiting the air outlet channel 1112 was 100℃.

[0155] Please refer to Figure 32 , Figure 32 This is a schematic diagram of the flow field calculation for a convex cross-section with a square shape.

[0156] refer to Figure 32 A protrusion 31 is provided in a circular tube 30 with a diameter of 1.5 mm. The cross-section of the protrusion 31 is square along its height direction. Gas flows through the circular tube 30 at a speed of 2.6 m / s. The characteristics of the selected gas are similar to those of the aerosol; the gas velocity is the actual velocity of the aerosol in the gas outlet channel 1112. The height of the protrusion 31 is represented by "H", and the distance between the centers of adjacent protrusions 31 is represented by "P".

[0157] Take different heights of protrusion 31, to Figure 32 Experiments were conducted using a schematic diagram of the structure to investigate the variation of the heat transfer coefficient with the ratio (P / H) of the distance between the centers of adjacent protrusions 31 to the height of protrusion 31. The results are as follows: Figure 33 As shown, Figure 33 This graph shows the variation of the heat transfer coefficient at different heights of the square cross-section protrusion. Figure 33It can be seen that the heat transfer coefficient varies in a basically consistent manner for different protrusion heights H. Therefore, the height H of the protrusion 31 only affects the numerical value of the heat transfer coefficient, and the variation of the heat transfer coefficient is mainly affected by the ratio (P / H) of the distance between the centers of adjacent protrusions 31 to the height of the protrusion 31.

[0158] Taking a square cross-section of protrusion 31 and a height H of 0.2 mm as an example, the velocity field distribution corresponding to different P / H values ​​is further studied, and the results are as follows: Figure 34 and Figure 35 As shown, Figure 34 The velocity field distribution diagrams are shown for different P / H values ​​corresponding to the positive-direction cross-section bulge. Figure 35 This is a graph showing how the heat transfer coefficient varies with different P / H values ​​depending on the cross-sectional bulge in the positive direction.

[0159] Depend on Figure 34 It can be seen that regardless of the P / H value, the flow velocity is faster further away from the wall. As shown in the figure, when the P / H value is too small, there is a large low-velocity region; as the value increases, the low-velocity region gradually decreases, and when it equals 17, reattachment just occurs, and the heat transfer effect is the best; after further increasing the value (P / H = 25), the low-velocity region decreases, but a new laminar boundary layer re-develops, affecting the heat transfer efficiency.

[0160] It is evident that when the P / H value is too small (e.g., P / H is 5), the flow field in the interval region between adjacent protrusions 31 is not sufficiently disturbed, resulting in a slight improvement in heat transfer efficiency. When the P / H value is 17, the airflow reattaches on the spaced surface between adjacent protrusions 31, resulting in a thin boundary layer and high heat transfer efficiency in the reattached region. When the P / H value is too large (e.g., P / H is 25), a laminar boundary layer re-develops after reattachment, reducing heat transfer efficiency. Therefore, both excessively small and excessively large P / H values ​​are detrimental to heat transfer between aerosols and the wall of the outlet channel 1112.

[0161] Depend on Figure 35 It can be seen that for a square-section protrusion 31, the cooling effect is best when the ratio (P / H) between the centers of adjacent protrusions 31 and the height of protrusion 31 is 10-20. Therefore, when the cross-section of the protrusion 1191 on the inner wall of the air outlet channel 1112 is square, the ratio between the centers of adjacent protrusions 1191 and the height of protrusion 1191 is 10-20, and optionally 13-17.

[0162] Please refer to Figure 36 , Figure 36 This is a schematic diagram of the flow field calculation for a convex cross-section.

[0163] refer to Figure 36A protrusion 31 is provided in a circular tube 30 with a diameter of 1.5 mm. The cross-section of the protrusion 31 is circular along its height direction. Gas flows through the circular tube 30 at a velocity of 2.6 m / s. The gas selected has characteristics similar to those of an aerosol; the gas velocity is the actual velocity of the aerosol in the outlet channel 1112. The diameter of the protrusion 31 is represented by "H", and the distance between the centers of adjacent protrusions 31 is represented by "P". Since the cross-section of the protrusion 31 is circular, the height of the protrusion 31 is the same as its diameter.

[0164] Take different heights of protrusion 31, to Figure 36 Experiments were conducted using a schematic diagram of the structure to investigate the variation of the heat transfer coefficient with the ratio (P / H) of the distance between the centers of adjacent protrusions 31 to the height of protrusion 31. The results are as follows: Figure 37 As shown, Figure 37 This graph shows the variation of the heat transfer coefficient at different heights of the circular cross-section bulge. Figure 37 It can be seen that the heat transfer coefficient varies in a basically consistent manner for different protrusion heights H. Therefore, the height H of the protrusion 31 only affects the numerical value of the heat transfer coefficient, and the variation of the heat transfer coefficient is mainly affected by the ratio (P / H) of the distance between the centers of adjacent protrusions 31 to the height of the protrusion 31.

[0165] Taking a circular cross-section of protrusion 31 and a height H of 0.2 mm as an example, the velocity field distribution corresponding to different P / H values ​​is further studied, and the results are as follows. Figure 38 and Figure 39 As shown, Figure 38 The diagram shows the velocity field distribution corresponding to different P / H values ​​for a circular cross-section protrusion. Figure 39 This is a graph showing how the heat transfer coefficient varies with different P / H values ​​for a circular cross-section bulge.

[0166] Depend on Figure 38 It can be seen that regardless of the P / H value, the flow velocity is faster further away from the wall. As shown in the figure, when the P / H value is too small, there is a large low-velocity region; as the value increases, the low-velocity region gradually decreases, and when it equals 14, reattachment just occurs, and the heat transfer effect is the best; after further increasing the value (P / H = 20), the low-velocity region decreases, but a new laminar boundary layer re-develops, affecting the heat transfer efficiency.

[0167] It is evident that when the P / H value is too small, the flow field in the interval region between adjacent protrusions 31 is not sufficiently disturbed, resulting in a slight improvement in heat transfer efficiency. When the P / H value is 14, the airflow reattaches on the spaced surface between adjacent protrusions 31, resulting in a thin boundary layer and high heat transfer efficiency in the reattached region. When the P / H value is too large, a laminar boundary layer re-develops after reattachment, reducing heat transfer efficiency. Therefore, both excessively small and excessively large P / H values ​​are detrimental to heat transfer between aerosols and the wall of the outlet channel 1112.

[0168] Depend on Figure 39 It can be seen that for a circular cross-section protrusion 31, the cooling effect is best when the ratio (P / H) between the centers of adjacent protrusions 31 and the height of protrusion 31 is 7-20. Therefore, when the cross-section of the protrusion 1191 on the inner wall of the air outlet channel 1112 is circular, the ratio between the centers of adjacent protrusions 1191 and the height of protrusion 1191 is 7-20, and optionally 11-16.

[0169] Therefore, when the cross-section of the protrusion 1191 is square or circular, the optimal design of the height of the protrusion 1191 and the ratio of the distance between the centers of adjacent protrusions 1191 to the height of the protrusion 1191 is shown in Table 2.

[0170] Table 2

[0171]

[0172] In other words, regardless of whether the cross-section of the protrusion 1191 is square or circular, when the length of the air outlet channel 1112 is less than or equal to 20 mm, the height of the protrusion 1191 is 0.6 mm-0.7 mm; when the length of the air outlet channel 1112 is greater than 20 mm and less than or equal to 30 mm, the height of the protrusion 1191 is 0.5 mm-0.6 mm; when the length of the air outlet channel 1112 is greater than 30 mm and less than or equal to 40 mm, the height of the protrusion 1191 is 0.4 mm-0.5 mm; when the length of the air outlet channel is greater than 40 mm and less than or equal to 50 mm, the height of the protrusion 1191 is 0.35 mm-0.45 mm; and when the length of the air outlet channel is greater than 50 mm, the height of the protrusion 1191 is 0.3 mm-0.4 mm. Optionally, when the length of the air outlet channel 1112 is less than 20 mm, the height of the protrusion 1191 can be 0.6 mm. When the length of the air outlet channel is greater than 40mm and less than 50mm, the height of the protrusion 1191 can be 0.4mm.

[0173] When the cross-section of protrusion 1191 is square, the ratio of the distance between the centers of adjacent protrusions 1191 to the height of protrusion 1191 is 10-20. When the cross-section of protrusion 1191 is circular, the ratio of the distance between the centers of adjacent protrusions 1191 to the height of protrusion 1191 is 7-20. It can be understood that when the cross-section of protrusion 1191 is square or circular, and the width and height of protrusion 1191 are the same, designing the distance between the centers of adjacent protrusions 1191 and the ratio of the distance between the centers of adjacent protrusions 1191 to the height of protrusion 1191 takes into account the influence of the width of protrusion 191 on the temperature of the aerosol at the air outlet 1112a.

[0174] Please see Figure 40 , Figure 40 This is a partial structural schematic diagram of the third embodiment of the atomizer provided in this application.

[0175] In the third embodiment of the atomizer 11, the structure of the atomizer 11 is basically the same as that of the first embodiment of the atomizer 11, except that the air outlet channel 1112 of the atomizer 11 first splits into multiple sub-air outlet channels 1112b at the end away from the atomizing core 113 and then converges again.

[0176] When a user inhales through the air outlet 1112a, their tongue is located at or corresponds to the center position A of the air outlet 1112a. The tongue is crucial for temperature perception; lowering the temperature at the center position A of the air outlet 1112a reduces the perceived temperature of the aerosol, thus improving the user experience. The inventors of this application have discovered that if the air outlet channel 1112 adopts a straight-through structure, the aerosol flowing out from the center position A of the air outlet 1112a is hotter than the aerosol flowing out from the surrounding areas (see details...). Figure 42 (Test results). This application reduces the aerosol temperature at the center A of the air outlet 1112a by first splitting the air outlet channel 1112 into multiple sub-air outlet channels 1112b at the end away from the atomizing core 113 and then converging them together. In other words, the aerosol atomized by the atomizing core 113 is first split into multiple sub-air outlet channels 1112b at the end of the air outlet channel 1112 away from the atomizing core 113, and then converges and flows out from the air outlet 1112a. During this splitting process, the aerosol is cooled. Compared to a straight air outlet channel 1112, the temperature perceived by the user when inhaling the aerosol through the air outlet 1112a is significantly lower, which improves the user experience. The number of sub-air outlet channels 1112b can be designed as needed.

[0177] In one embodiment, a baffle 1112c is provided within the air outlet channel 1112 to divide the end of the air outlet channel 1112 away from the atomizing core 113 into two sub-air outlet channels 1112b, so that the air outlet channel 1112 is first diverted; wherein, the extending direction of the baffle 1112c is the same as the extending direction of the air outlet channel 1112. The end face of the baffle 1112c near the air outlet 1112a is spaced apart from the air outlet 1112a, so that the air outlet channels 1112 converge again after diversion (e.g., Figure 40(As shown). That is, the air outlet channel 1112 includes a first part, a second part, and a third part. The inlet of the air outlet channel 1112 is the inlet of the first part, and the outlet of the third part is the air outlet 1112a. Both the first and third parts are straight-through pipes. The baffle 1112c is located in the second part, giving the second part a significant flow-diverting effect relative to the first and third parts, thus achieving flow-diverting cooling. It can be understood that the number of sub-air outlet channels 1112b can be designed as needed, and the structure of the baffle 1112c can be designed according to the number of sub-air outlet channels 1112b.

[0178] The partition 1112c can be integrally formed with the air outlet channel 1112, or it can be fixed to the air outlet channel 1112 by means of snap-fit ​​or other methods, depending on the specific requirements. The thickness of the partition 1112c is designed to divide the end of the air outlet channel 1112 away from the atomizing core 113 into two sub-air outlet channels 1112b, and to cool the aerosol flowing through the sub-air outlet channels 1112b. It can be understood that the aerosol mixes and cools with the air in the sub-air outlet channels 1112b, and the aerosol flowing through the sub-air outlet channels 1112b absorbs heat from the cavity wall of the sub-air outlet channels 1112b, thereby reducing the aerosol temperature at the air outlet 1112a. Furthermore, since the aerosols in the two sub-air outlet channels 1112b converge and mix at the center A of the air outlet 1112a, the temperature of the aerosol flowing out from the center A is further reduced (see details...). Figure 44 (Test results).

[0179] Optionally, the partition 1112c can be a solid plate, that is, part of the cavity wall of the two sub-outlet channels 1112b is shared. In this case, the thickness of the partition 1112c needs to be set so that the temperature of the aerosol in the two sub-outlet channels 1112b can be reduced.

[0180] Optionally, the partition 1112c can be a hollow plate, meaning the interior of the partition 1112c is hollow, and the two sub-outlet channels 1112b are two completely separate channels. The wall thickness of the partition 1112c and the width of its internal hollow cavity (the width of the internal hollow cavity of the partition 1112c is the dimension along the thickness direction of the partition 1112c) determine the thickness of the partition 1112c. The wall thickness of the partition 1112c and the width of its internal hollow cavity are designed as needed to achieve flow diversion and cooling. Optionally, the partition 1112c can be a rectangular hollow plate.

[0181] Optionally, regardless of whether the partition 1112c is a solid rectangular plate or a hollow rectangular plate, the ratio of the length of the partition 1112c (the length of the partition 1112c is the dimension along the extension direction of the air outlet channel 1112) to the length of the air outlet channel 1112 is 1:5-1:4. With the above settings, a better diversion and cooling effect can be achieved; while keeping the overall size of the atomizer 11 almost unchanged, the storage space of the liquid reservoir 1111 will not be reduced too much, thus avoiding the situation where the storage capacity of the liquid reservoir 1111 cannot meet the user's needs.

[0182] Specifically, the end of the air outlet channel 1112 away from the atomizing core 113 has a larger dimension in the width direction of the atomizer 11, forming a widened section B; the widened section B is the second and third parts of the air outlet channel 1112. A baffle 1112c is disposed in the widened section B and parallel to the thickness direction of the atomizer 11, dividing the end of the air outlet channel 1112 away from the atomizing core 113 into two sub-air outlet channels 1112b; the end face of the baffle 1112c near the air outlet 1112a is spaced apart from the air outlet 1112a, so that the third part of the air outlet channel 1112 is a straight pipe, and the aerosols in the two sub-air outlet channels 1112b converge in the third part before flowing out from the air outlet 1112a. By providing the widened section B on the air outlet channel 1112, the baffle 1112c disposed in the widened section B can have a larger thickness, which can better cool the aerosols in the two sub-air outlet channels 1112b. In one embodiment, the end face of the widened section B near the atomizing core 113 is flush with the end face of the partition 1112c near the atomizing core 113, that is, the width of the air outlet channel 1112 is widened only at the location where the partition 1112c is provided.

[0183] The widened section B can have a consistent cross-sectional shape and area along its extension direction; that is, the widened section B is a straight-through structure. The widened section B can include a first section and a second section, with the second section located on the side of the first section away from the atomizing core 113; the cross-sectional area of ​​the first section gradually increases along the direction away from the atomizing core 113, making the longitudinal section of the first section along the direction away from the atomizing core 113 a conical structure; the cross-sectional area of ​​the second section along the direction away from the atomizing core 113 is the same, that is, the second section is a straight-through structure (e.g., ...). Figure 40 (As shown). By setting the first section of the widened section B to a conical structure, the formation of vortices in aerosols at the corners of the widened section B can be avoided, thereby preventing the structure of the widened section B from affecting the amount of aerosol flowing out of the outlet 1112a.

[0184] The two sub-outlet channels 1112b can be symmetrically arranged along the partition 1112c so that the atomized aerosol from the atomizing core 113 flows through the two sub-outlet channels 1112b and the aerosol can achieve the same cooling effect in the two sub-outlet channels 1112b respectively.

[0185] Please see Figures 41-44 , Figure 41 This is a schematic diagram of a partial structure of an existing atomizer. Figure 42 for Figure 41 The provided aerosol temperature distribution cloud map at the outlet of the atomizer. Figure 43 for Figure 40 The provided aerosol temperature distribution cloud map at the outlet of the atomizer. Figure 44 for Figure 40 The provided atomizer's air outlet channel shows the velocity vector distribution on several surfaces near the air outlet.

[0186] Figure 41 The structure of the provided atomizer is similar to Figure 40 The only difference in the structure of the provided atomizer 11 is the arrangement of the air outlet channel. Figure 41 The atomizer in the middle has a straight-through air outlet channel, which is suitable for... Figure 41 The existing atomizer was tested under the following conditions: airflow channel diameter 2.5mm, airflow channel length 32.9mm, initial temperature of the S-shaped heating layer 1134 on the atomizer coil 250℃, and atomization rate of 3s / 9mg. Figure 40 The provided atomizer 11 was tested under the following conditions: the diameter of the outlet channel 1112 near the atomizing core 113 before splitting was 2.5 mm; the distance between the outlet channel inlet and outlet 1112a was 32.9 mm; the initial temperature of the S-shaped heating layer 1134 on the atomizing core 113 was 250℃; and the atomization rate was 3 s / 9 mg. The test results are as follows: Figures 42-44 As shown.

[0187] pass Figure 44 It can be seen that after the aerosol is diverted into the two sub-outlet channels 1112b in the outlet channel 1112, a mixing vortex zone will exist at the center position A when the aerosol converges and mixes. That is, during the convergence and mixing process, the aerosol temperature at the center position A of the outlet 1112a will be further reduced, so that the highest temperature of the outlet 1112a is located on both sides of the center position A, which is beneficial to reduce the aerosol temperature perceived by the user.

[0188] Compare Figure 42 and Figure 43When the outlet channel is a straight-through structure, the aerosol flows directly out after passing through the outlet channel, resulting in poor aerosol mixing at the outlet. The aerosol temperature at the outlet is relatively concentrated in the center of the outlet channel, with the highest temperature reaching 80℃. When the outlet channel 1112 is equipped with a diversion cooling structure, due to the diversion effect, the aerosol mixes and cools with the air in the two sub-outlet channels 1112b respectively, and is also absorbed by the cavity walls of the two sub-outlet channels 1112b. Although the aerosol gathers together again at the outlet 1112a, the temperature at the center A is significantly reduced, reaching approximately 69℃. The highest temperature at the outlet 1112a is located on both sides of the center A, and the highest temperature at the outlet 1112a is also reduced to approximately 74℃. The overall cooling effect is approximately 5℃-10℃.

[0189] Tests have shown that the air outlet channel 1112 first splits into multiple sub-air outlet channels 1112b at the end furthest from the atomizing core 113 before converging, which significantly reduces the aerosol temperature at the air outlet 1112a and improves the user experience.

[0190] The following study examines the distance d between the end face of the partition 1112c near the air outlet 1112a and the air outlet 1112a. An atomizer 11 with a split-flow structure in the air outlet channel 1112 was tested under the following conditions: the diameter of the end of the air outlet channel 1112 near the atomizing core 113 before splitting was 2.5 mm; the distance between the inlet of the air outlet channel and the air outlet 1112a was 32.9 mm; the initial temperature of the S-shaped heating layer 1134 on the atomizing core 113 was 250℃; and the atomization rate was 3 s / 9 mg. The test results are as follows: Figure 45 and Figure 46 As shown, Figure 45 This is a graph showing the relationship between the maximum temperature of the aerosol at the outlet and the distance d. Figure 46 This is a graph showing the relationship between the aerosol temperature at the center position A of the outlet and the distance d. It can be understood that... Figure 45 The highest aerosol temperature at the middle outlet 1112a refers to the highest aerosol temperature on the entire outlet 1112a.

[0191] right Figure 45 Analysis shows that the distance 'd' between the end face of the partition 1112c near the outlet 1112a and the outlet 1112a has little effect on the maximum aerosol temperature at the outlet 1112a. Figure 46Analysis reveals that when the distance d between the end face of the partition 1112c near the outlet 1112a and the outlet 1112a is greater than 3 mm, the aerosol temperature at the center position A of the outlet 1112a no longer changes significantly. This indicates that when the distance d is 3 mm, the aerosol mixing is already quite sufficient, and further increasing the distance d has very limited impact on the aerosol temperature distribution at the outlet 1112a. Therefore, the preferred range of d is 0 mm < d ≤ 3 mm, and the more preferred range of d is 0 mm < d ≤ 2.5 mm.

[0192] From this, we can conclude that Figure 46 In addition to the air outlet channel 1112 with a flow splitting structure, the atomizer 11 in the experimental data also has a distance h between the atomizing surface of the atomizing core 113 and the air inlet 1125a of 0.4 mm.

[0193] It is understandable that, under the premise of reducing the temperature of the aerosol at the outlet 1112a by first splitting the air outlet channel 1112 into multiple sub-air outlet channels 1112b at the end away from the atomizing core 113 and then converging them together, it is optional to reduce the temperature of the aerosol at the outlet 1112a by setting the distance h between the atomizing surface of the atomizing core 113 and the air inlet 1125a as described above (the specific content described in the first embodiment of the atomizer 11: the distance h between the atomizing surface of the atomizing core 113 and the air inlet 1125a). It is also optional to reduce the temperature of the aerosol at the outlet 1112a by setting a cooling structure 119 in the air outlet channel 1112 (the cooling structure 119 specifically described in the second embodiment of the atomizer 11). The three implementation methods for reducing the aerosol temperature at the outlet 1112a described above can be combined arbitrarily as needed, so that the aerosol temperature range of the outlet 1112a of the atomizer 11 is 55℃-85℃. Optionally, the aerosol temperature range of the outlet 1112a of the atomizer 11 can be 70℃-80℃.

[0194] The above are merely embodiments of this application and do not limit the scope of this patent application. Any equivalent structural or procedural changes made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. An atomizer, characterized in that, include: The casing has an air vent. Mounting base, the interior of which has an atomizing chamber; An atomizing core is disposed in the atomizing chamber; the atomizing core has an atomizing surface, the atomizing surface faces the air outlet of the mounting base, and the air outlet channel is connected to the air outlet of the mounting base; The mounting base is provided with an air inlet, which is used to communicate with the outside atmosphere and the atomizing chamber, so that the outside atmosphere can flow into the atomizing chamber through the air inlet; a certain distance h is set between the atomizing surface and the air inlet, where h is 0mm < h ≤ 0.7mm; and a cooling structure is provided in the air outlet channel to keep the temperature of the aerosol at the air outlet within the range of 55℃-85℃. The cooling structure includes a baffle disposed within the air outlet channel to divide the end of the air outlet channel away from the atomizing core into multiple sub-air outlet channels; or, The cooling structure includes a plurality of protrusions disposed on the inner wall of the air outlet channel, and the plurality of protrusions are spaced apart along the length of the air outlet channel.

2. The atomizer according to claim 1, characterized in that, The cooling structure causes the air outlet channel to first split into multiple sub-air outlet channels at the end away from the atomizing core, and then converge together.

3. The atomizer according to claim 1, characterized in that, The partition divides the end of the air outlet channel away from the atomizing core into two sub-air outlet channels; the extension direction of the partition is the same as the extension direction of the air outlet channel; the end face of the partition near the air outlet is spaced apart from the air outlet.

4. The atomizer according to claim 3, characterized in that, The distance d between the end face of the partition near the air outlet and the air outlet is in the range of 0mm < d ≤ 3mm.

5. The atomizer according to claim 3, characterized in that, The end of the air outlet channel away from the atomizing core becomes larger in the width direction of the atomizer to form a widened section, and the partition is disposed on the widened section and divides the air outlet channel into two sub-air outlet channels.

6. The atomizer according to claim 3, characterized in that, The two sub-exhaust channels are symmetrically arranged along the partition.

7. The atomizer according to claim 3, characterized in that, The ratio of the length of the partition to the length of the air outlet channel is 1:5 to 1:

4.

8. The atomizer according to claim 1, characterized in that, The range of h is 0.2mm≤h≤0.5mm.

9. The atomizer according to any one of claims 1-7, characterized in that, Also includes: The housing has a mounting cavity; the mounting seat is disposed in the mounting cavity; The mounting base has a top wall and a side wall that are connected to each other, and the top wall and the side wall surround the atomizing cavity; the side wall of the mounting base cooperates with the side wall of the mounting cavity to form an air guiding channel; the atomizing core has an atomizing surface on the side near the top wall; wherein, the side wall of the mounting base is provided with the air inlet hole so that the air guiding channel communicates with the atomizing cavity.

10. The atomizer according to claim 9, characterized in that, The mounting base includes a mounting top cover and a mounting base; the mounting top cover is sleeved on the mounting base. The outer surface of the side wall of the mounting top cover is provided with an air guide groove. The side wall of the mounting cavity and the bottom wall of the air guide groove cooperate to form the air guide channel. The air guide groove is provided with an air inlet on the side near the top wall of the mounting top cover. The mounting base has an air inlet. The end of the air guide channel away from the air inlet is connected to the air inlet.

11. The atomizer according to claim 1, characterized in that, The height of the protrusion is 0.3mm-0.6mm; and / or the ratio of the distance between the centers of adjacent protrusions to the height of the protrusion is 7-20.

12. The atomizer according to claim 11, characterized in that, The length of the air outlet channel is less than or equal to 20mm, and the height of the protrusion is 0.6mm-0.7mm; Alternatively, the length of the air outlet channel is greater than 20mm and less than or equal to 30mm, and the height of the protrusion is 0.5mm-0.6mm; Alternatively, the length of the air outlet channel is greater than 30mm and less than or equal to 40mm, and the height of the protrusion is 0.4mm-0.5mm; Alternatively, the length of the air outlet channel is greater than 40mm and less than or equal to 50mm, and the height of the protrusion is 0.35mm-0.45mm; Alternatively, the length of the air outlet channel is greater than 50mm, and the height of the protrusion is 0.3mm-0.4mm.

13. The atomizer according to claim 11, characterized in that, Along the height direction of the protrusion, the cross-section of the protrusion is square, and the ratio of the distance between the centers of adjacent protrusions to the height of the protrusion is 10-20. Alternatively, along the height direction of the protrusion, the cross-section of the protrusion is circular, and the ratio of the distance between the centers of adjacent protrusions to the height of the protrusion is 7-20.

14. An electronic atomizing device, characterized in that, It includes a battery assembly and an atomizer, the battery assembly being used to power the atomizer, wherein the atomizer is the atomizer according to any one of claims 1-13.

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