Atomiser and electronic atomising device

Abstract

The application discloses an atomizer and an electronic atomization device. The atomizer comprises a shell, a mounting seat and an atomization core; the shell is provided with an air outlet channel; the mounting seat is internally provided with an atomization cavity; the atomization core is arranged in the atomization cavity; the atomization core is provided with 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; wherein, an air inlet hole is arranged on the mounting seat, the air inlet hole 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, and the atomization surface is separated from the air inlet hole by a distance h. The atomizer and the electronic atomization device can reduce the temperature of aerosol flowing out of the air outlet, and improve the use experience of users.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic atomization devices, in particular to an atomizer and an electronic atomization device. BACKGROUND

[0002] An electronic atomization device is a device capable of atomizing an aerosol generating substrate into an aerosol, which is widely used in daily life. An atomization core in the electronic atomization device has an atomization surface, and a heating layer is arranged on the atomization surface. The heating layer can heat the aerosol generating substrate near the atomization surface after being powered on, so that the aerosol generating substrate is heated and atomized to generate an aerosol. The aerosol flows out of the electronic atomization device through an air outlet for a user to use.

[0003] Generally, the atomization surface of the atomization core is arranged downward, i.e., toward the air inlet of the electronic atomization device. In order to increase the amount of aerosol flowing out of the electronic atomization device, the atomization surface of the atomization core can also be arranged upward, i.e., toward the air outlet. In this way, the distance between the air outlet and the atomization surface can be greatly shortened, and the amount of aerosol flowing out of the electronic atomization device can be increased. However, the arrangement of the atomization surface upward can increase the temperature of the aerosol flowing out of the air outlet, and the user experience is poor. SUMMARY

[0004] The atomizer and the electronic atomization device provided by the present application solve the problem that the temperature of the aerosol flowing out of the air outlet is high and the user experience is poor when the atomization surface is arranged upward.

[0005] To solve the above technical problems, the first technical solution provided by the present application is to provide an atomizer, which comprises a shell, a mounting seat and an atomization core. The shell has an air outlet channel. The mounting seat has an atomization cavity in the interior. The atomization core is arranged in the atomization cavity. The atomization core has an atomization surface, and the atomization surface faces an air outlet hole of the mounting seat. The air outlet channel is connected to the air outlet hole of the mounting seat. An air inlet hole is arranged on the mounting seat and is connected to the atomization cavity and the outside air, so that the outside air can flow into the atomization cavity through the air inlet hole. The atomization surface is separated from the air inlet hole by a distance h.

[0006] The distance h is in the range of 0mm < h ≤ 0.7mm.

[0007] The distance h is in the range of 0.2mm ≤ h ≤ 0.5mm.

[0008] The shell has a mounting cavity. The mounting seat is arranged in the mounting cavity. The mounting seat has a top wall and a side wall connected to each other, and the top wall and the side wall form the atomization cavity. The side wall of the mounting seat cooperates with the side wall of the mounting cavity to form a gas guide channel. The side of the atomization core close to the top wall has an atomization surface. The side wall of the mounting seat is provided with an air inlet hole, and the gas guide channel is connected to the atomization cavity.

[0009] The shell has a liquid storage cavity for storing aerosol generating substrate; the mounting seat has a liquid guide channel that communicates with the liquid storage cavity, and the liquid guide channel is used to guide the aerosol generating substrate in the liquid storage cavity to the side wall of the atomizing core and / or the side of the atomizing core away from the air outlet hole.

[0010] The mounting seat comprises a mounting top cover and a mounting base; the mounting top cover is sleeved on the mounting base;

[0011] The outer surface of the side wall of the mounting top cover is provided with a gas guide groove, the side wall of the mounting cavity cooperates with the bottom wall of the gas guide groove to form a gas guide channel, and the side of the gas guide groove close to the top wall of the mounting top cover is provided with an air inlet hole; the mounting base has an air inlet, and the end of the gas guide channel away from the air inlet hole communicates with the air inlet.

[0012] The width of the air inlet hole is equal to the width of the gas guide groove.

[0013] One end of the gas guide groove is a closed end close to the top wall of the mounting top cover, and the other end of the gas guide groove is an open end extending to the bottom surface of the mounting top cover.

[0014] The mounting base comprises a bottom and a support part, the mounting top cover is sleeved on the support part and abuts against the bottom, and the atomizing core is arranged on the side of the support part close to the top wall of the mounting top cover.

[0015] The number of the gas guide grooves is two, and the gas guide grooves are arranged on the outer surfaces of the opposite two side walls of the mounting top cover; the surface of the bottom away from the support part has a first groove as an air inlet, and the first groove has two first openings close to the two ends of the two gas guide grooves, and the two first openings respectively communicate with the ends of the two gas guide grooves close to the bottom.

[0016] The atomizing core comprises a base, a heating layer and two electrodes, the base is arranged on the side of the support part close to the top wall of the mounting top cover, the surface of the base close to the top wall is an atomizing surface, the heating layer and the two electrodes are arranged on the atomizing surface, and the two electrodes are respectively connected to the opposite two ends of the heating layer.

[0017] The atomizer further comprises two electrode connecting pieces, one end of each electrode connecting piece is electrically connected to one electrode, and the other end of each electrode connecting piece is arranged on the surface of the bottom of the mounting base away from the support part.

[0018] The surface of the bottom away from the support part has a second groove, and the second groove has a second opening close to the shell; the other end of each electrode connecting piece is arranged in the second groove through the second opening.

[0019] To solve the above technical problems, the second technical scheme provided by the present application is to provide an electronic atomization device, comprising a battery assembly and an atomizer, the battery assembly is used to supply power to the atomizer, wherein the atomizer is any one of the atomizers described above.

[0020] The atomizer and the electronic atomization device provided by the present application can realize the communication between the external atmosphere and the atomization cavity through the air inlet hole formed on the mounting seat, so that the external atmosphere can flow into the atomization cavity through the air inlet hole and carry the aerosol generated in the atomization cavity to flow out of the atomizer for use by the user. At the same time, the cold air flowing into the atomization cavity can perform heat convection with the hot aerosol generated by the atomization surface. By providing a certain distance h between the atomization surface of the atomization core and the air inlet hole, the vortex area near the atomization surface can be increased, and the heat convection between the cold air and the hot aerosol can be reduced, so that the temperature of the airflow after the cold air and the aerosol are mixed is reduced, the temperature of the aerosol flowing out of the air outlet of the atomizer is reduced, and the use experience of the user is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0022] Figure 1 A functional module block diagram of the electronic atomization device provided by the present application;

[0023] Figure 2 A perspective structural schematic diagram of the first embodiment of the atomizer provided by the present application;

[0024] Figure 3 An exploded structural schematic diagram of the atomizer of the present application; Figure 2

[0025] A sectional view of the atomizer of the present application along A-A direction; Figure 4 Figure 2 A perspective structural schematic diagram of one angle of the mounting top cover in the present application;

[0026] Figure 5 Figure 3 A perspective structural schematic diagram of another angle of the mounting top cover in the present application;

[0027] Figure 6 A perspective structural schematic diagram of the atomization core in the present application; Figure 3

[0028] A sectional view of the mounting seat and the atomization core after assembly in the present application; Figure 7 Figure 3 A sectional view of the mounting seat and the atomization core after assembly in the present application;

[0029] Figure 8 Figure 3 A sectional view of the mounting seat and the atomization core after assembly in the present application;

[0030] Figure 9 A sectional view of the mounting seat and the atomization core after assembly in the present application; Figure 2 ​​​​Figure 6 is a partial cross-sectional view of the atomizer along B-B direction of Figure 5;

[0031] Figure 10 Figure 7 is a partial cross-sectional view of the atomizer along B-B direction of Figure 6; Figure 3 Figure 8 is another cross-sectional view of the atomizer after the installation of the mounting base and the atomizing core;

[0032] Figure 11 Figure 9 is a partial flow velocity diagram of the gas in the atomizer of Figure 7; Figure 2

[0033] Figure 12 Figure 10 is a partial temperature distribution diagram of the atomizer of Figure 7; Figure 2

[0034] Figure 13 Figure 11 is a diagram of the temperature of the aerosol at the outlet of the atomizer provided in the present application;

[0035] Figure 14 Figure 12 is a diagram of the amount of the aerosol at the outlet of the atomizer provided in the present application;

[0036] Figure 15 Figure 13 is a column chart of the amount and temperature of the aerosol at the outlet of the atomizer provided in the present application;

[0037] Figure 16 Figure 14 is an exploded structural schematic diagram of the mounting top cover, the atomizing core, the second sealing member, the third sealing member and the mounting base in Figure 7; Figure 3

[0038] Figure 17 Figure 15 is an exploded structural schematic diagram of the mounting base and the end cover in Figure 7; Figure 3

[0039] Figure 18 Figure 16 is another exploded structural schematic diagram of the mounting top cover, the atomizing core, the second sealing member, the third sealing member and the mounting base in Figure 7; Figure 3

[0040] Figure 17 is a partial structural schematic diagram of the second embodiment of the atomizer provided in the present application; Figure 19

[0041] Figure 18 is a structural schematic diagram of the first experimental piece; Figure 20

[0042] Figure 19 is a structural schematic diagram of the second experimental piece; Figure 21

[0043] Figure 20 is a temperature distribution diagram of the gas flow at the outlet of the first experimental piece; Figure 22

[0044] Figure 21 is a temperature distribution diagram of the gas flow at the outlet of the second experimental piece; Figure 23

[0045] Figure 24 ​​​​​Fig. 1 is a schematic diagram of the variation of the local surface heat transfer coefficient corresponding to different boundary layer morphologies;

[0046] Figure 25 Fig. 1 is a schematic diagram of the variation of the local surface heat transfer coefficient corresponding to different boundary layer morphologies; Figure 19 Fig. 2 is a schematic diagram of the flow path of the gas flow in the gas outlet channel of the atomizer of the present application;

[0047] Figure 26 Fig. 3 is a diagram of the velocity field distribution in the gas outlet channel of the existing atomizer;

[0048] Figure 27 Fig. 4 is a diagram of the velocity field distribution in the gas outlet channel of the second embodiment of the atomizer provided in the present application;

[0049] Figure 28 Fig. 4 is a diagram of the velocity field distribution in the gas outlet channel of the second embodiment of the atomizer provided in the present application; Figure 19 Fig. 5 is a schematic diagram of the structure of the protrusion with a square cross section in the atomizer of the present application;

[0050] Figure 29 Fig. 6 is a schematic diagram of the structure of the protrusion with a circular cross section in another embodiment of the atomizer of the present application;

[0051] Figure 30 Fig. 7 is a diagram of the variation of the resistance with the height of the protrusion calculated for different lengths of the gas outlet channel;

[0052] Figure 31 Fig. 8 is a diagram of the temperature distribution of the gas outlet corresponding to different heights of the protrusion;

[0053] Figure 32 Fig. 9 is a schematic diagram of the flow field calculation of the protrusion with a square cross section;

[0054] Figure 33 Fig. 10 is a diagram of the variation of the heat transfer coefficient with the height of the protrusion with a square cross section;

[0055] Figure 34 Fig. 11 is a diagram of the velocity field distribution corresponding to different P / H values of the protrusion with a square cross section;

[0056] Figure 35 Fig. 12 is a diagram of the variation of the heat transfer coefficient with different P / H values of the protrusion with a square cross section;

[0057] Figure 36 Fig. 13 is a schematic diagram of the flow field calculation of the protrusion with a circular cross section;

[0058] Figure 37 Fig. 14 is a diagram of the variation of the heat transfer coefficient with the height of the protrusion with a circular cross section;

[0059] Figure 38 Fig. 15 is a diagram of the velocity field distribution corresponding to different P / H values of the protrusion with a circular cross section;

[0060] Figure 39 Fig. 16 is a diagram of the variation of the heat transfer coefficient with different P / H values of the protrusion with a circular cross section;

[0061] Figure 40 Partial structure diagram of a third embodiment of the atomizer provided in the present application;

[0062] Figure 41 Partial structure diagram of an existing atomizer;

[0063] Figure 42 Partial structure diagram of a third embodiment of the atomizer provided in the present application; Figure 41 Aerosol temperature distribution cloud diagram of the air outlet of the atomizer provided in the present application;

[0064] Figure 43 Aerosol temperature distribution cloud diagram of the air outlet of the atomizer provided in the present application; Figure 40 Aerosol temperature distribution cloud diagram of the air outlet of the atomizer provided in the present application;

[0065] Figure 44 Aerosol temperature distribution cloud diagram of the air outlet of the atomizer provided in the present application; Figure 40 Aerosol temperature distribution cloud diagram of the air outlet of the atomizer provided in the present application;

[0066] Figure 45 Curve diagram of the relationship between the highest aerosol temperature of the air outlet and the interval distance d;

[0067] Figure 46 Curve diagram of the relationship between the highest aerosol temperature of the air outlet and the interval distance d; DETAILED DESCRIPTION

[0068] The technical solutions in the embodiments of the present application will be clearly and completely described in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0069] In the following description, specific details are set forth in order to provide a thorough understanding of the present application, but the present application can be practiced without one or more of the specific details. In some cases, well-known structures and techniques have not been described in detail in order to avoid obscuring the present application.

[0070] The terms "first", "second", "third" in the present application are only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", "third" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise explicitly and specifically limited. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly. The terms "include" and "have" and any variations thereof in the embodiments of the present application are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or components inherent to the process, method, product or device.

[0071] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearance of the phrase in various places in the specification is not necessarily all referring to the same embodiment, nor is it necessarily referring to a separate or alternative embodiment to the other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with each other.

[0072] The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0073] Please refer to Figure 1 , Figure 1 is a functional module schematic diagram of an electronic atomization device provided by the present application. In the present embodiment, an electronic atomization device is provided. The electronic atomization device can be used for atomization of aerosol generating substrate. The electronic atomization device comprises an atomizer 11 and a battery assembly 12 which are electrically connected to each other.

[0074] The atomizer 11 is used for storing aerosol generating substrate and atomizing the aerosol generating substrate to form aerosol for a user to smoke. The atomizer 11 can be used in different fields, such as medical, beauty, leisure smoking, etc. In a specific embodiment, the atomizer 11 can be used in an electronic aerosolization device for atomizing the substrate to be atomized and generating aerosol for a smoker to smoke, and the following embodiments are all taken as examples. Of course, in other embodiments, the atomizer 11 can also be applied to a hairspray device to atomize hairspray for hair styling, or to a device for treating upper and lower respiratory system diseases to atomize medical drugs.

[0075] The specific structure and function of the atomizer 11 can refer to the specific structure and function of the atomizer 11 involved in any of the following embodiments, and the same or similar technical effects can be achieved, which will not be repeated here.

[0076] The battery assembly 12 includes a battery (not shown in the figure) and a controller (not shown in the figure). The battery is used to power the atomizer 11, so that the atomizer 11 can atomize the aerosol generating substrate to form an aerosol; the controller is used to control the atomizer 11 to work. The battery assembly 12 also includes a battery holder, an airflow sensor and other elements.

[0077] The atomizer 11 and the battery assembly 12 can be integrally arranged, or can be detachably connected, and can be designed according to specific needs.

[0078] Please refer to Figure 2 , Figure 3 and Figure 4 , Figure 2 is a perspective structural schematic view of the first embodiment of the atomizer provided in the embodiment, Figure 3 is an exploded structural schematic view of the atomizer of Figure 2 , Figure 4 is a sectional view of the atomizer of Figure 2 along A-A.

[0079] In the embodiment, an atomizer 11 is provided, which includes a housing 111, a mounting seat 112, an atomizing core 113 and an end cover 114.

[0080] Among them, the housing 111 is formed with a liquid storage cavity 1111, an air outlet passage 1112 and a mounting cavity 1113, and the liquid storage cavity 1111 and the air outlet passage 1112 are respectively communicated with the mounting cavity 1113.

[0081] The liquid storage cavity 1111 is used to store the aerosol generating substrate, and the housing 111 can be made of metal such as aluminum and stainless steel, or can be made of plastic, as long as it can store the aerosol generating substrate and does not react with the aerosol generating substrate. The shape, size and position of the liquid storage cavity 1111 are not limited, and can be designed as needed. In the embodiment, the liquid storage cavity 1111 and the air outlet passage 1112 are arranged side by side on the same side of the mounting cavity 1113, and the liquid storage cavity 1111 is arranged around the air outlet passage 1112.

[0082] The mounting seat 112 is arranged in the mounting cavity 1113. The mounting seat 112 has an atomizing cavity 1123 therein, and the atomizing core 113 is arranged in the atomizing cavity 1123. Specifically, in the embodiment, the mounting seat 112 further includes a mounting top cover 1121 and a mounting base 1122, and the mounting top cover 1121 is sleeved on the side of the mounting base 1122 close to the liquid storage cavity 1111. Please refer to Figure 5 and Figure 6, Figure 5 For Figure 3 A perspective view of the installation of the top cover from one angle, Figure 6 For Figure 3 A perspective view of the installation of the top cover from another angle. The installation top cover 1121 includes a top wall 1121a and a side wall 1121b connected to each other. The side wall 1121b of the installation top cover 1121 can be an annular side wall, which is arranged on the side of the top wall 1121a of the installation top cover 1121 away from the liquid storage cavity 1111. The top wall 1121a and the side wall 1121b of the installation top cover 1121 can be integrally formed. The top wall 1121a of the installation top cover 1121 and the side wall 1121b of the installation top cover 1121 surround to form an atomization cavity 1123. In other embodiments, the installation top cover 1121 and the installation base 1122 can also cooperate to form the atomization cavity 1123, and the way in which the installation base 1122 forms the atomization cavity 1123 is not limited to the way mentioned in the present application.

[0083] Please refer to Figure 3 And Figure 4 The top wall 1121a of the installation top cover 1121 has an air outlet hole 1121c. One end of the air outlet hole 1121c communicates with the atomization cavity 1123, and the other end of the air outlet hole 1121c communicates with the air outlet channel 1112, so that the atomization cavity 1123 communicates with the air outlet channel 1112. The aerosol after the atomization of the atomization core 113 flows into the air outlet channel 1112 after mixing with cold air. Further, the air outlet channel 1112 has an air outlet 1112a at the end away from the installation cavity 1113, that is, the port of one end of the air outlet channel 1112 is the air outlet 1112a, and the air outlet channel 1112 communicates with 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 to provide for the user.

[0084] Please refer to Figure 7 , Figure 7 For Figure 3 A perspective view of the atomization core from one angle;

[0085] The atomization core 113 includes a base 1133, a heating layer 1134, and two electrodes 1135. The base 1133 has an atomization surface 1131 on a side close to the liquid storage cavity 1111, that is, the atomization core 113 has an atomization surface; the heating layer 1134 and the two electrodes 1135 are arranged on the atomization surface 1131. The base 1133 can store and guide the aerosol generating substrate. The material of the base 1133 can be a porous material, for example, porous ceramic, which can guide the aerosol generating substrate to the heating layer 1134 by capillary force, and the heating layer 1134 can heat and atomize the aerosol generating substrate to form an aerosol. The heating layer 1134 can be a heating wire, a heating net, a heating film, a heating circuit, etc., which can be selected as needed. The two electrodes 1135 are arranged at two ends of the heating layer 1134, and the two electrodes 1135 can be electrically connected to the battery assembly 12 through the connecting member, so that when the two electrodes 1135 are electrified, the heating layer 1134 between the two electrodes 1135 is electrified to heat the aerosol generating substrate.

[0086] In this embodiment, the atomization surface of the atomization core 113 faces the air outlet hole 1121c of the mounting seat 112, that is, the atomization surface is arranged upward.

[0087] Please refer to Figure 3 and Figure 4 , the atomizer 11 further includes a first sealing member 115, a second sealing member 116, and a third sealing member 117. The first sealing member 115 is arranged at an end of the mounting top cover 1121 close to the liquid storage cavity 1111 to seal the mounting top cover 1121 and the shell 111. The second sealing member 116 is sleeved on the atomization core 113 to seal the atomization core 113 and the mounting top cover 1121. The third sealing member 117 is arranged between the mounting base 1122 and the atomization core 113 to seal the atomization core 113 and the mounting base 1122, and seal the mounting top cover 1121 and the mounting base 1122. The materials of the first sealing member 115, the second sealing member 116, and the third sealing member 117 can be any sealing material with certain flexibility and resistance to a certain temperature. In this embodiment, the materials of the first sealing member 115, the second sealing member 116, and the third sealing member 117 are silicone. The shapes and sizes of the first sealing member 115, the second sealing member 116, and the third sealing member 117 are not limited and can be designed as needed.

[0088] Please refer to Figure 5 and Figure 8 , Figure 8 is Figure 3 a sectional view of the mounting seat and the atomization core after assembly.

[0089] The top wall 1121a of the mounting top cover 1121 is further provided with a liquid outlet hole 1121d. One end of the liquid outlet hole 1121d is in communication with the liquid storage cavity 1111, and the other end of the liquid outlet hole 1121d is in communication with the atomization cavity 1123, so that the aerosol generating substrate in the liquid storage cavity 1111 can flow to the atomization cavity 1123 through the liquid outlet hole 1121d. The number of the liquid outlet hole 1121d can be one or more. In this embodiment, the number of the liquid outlet hole 1121d is two, and the liquid outlet hole 1121d is symmetrically arranged on the opposite sides of the air outlet hole 1121c.

[0090] In this embodiment, the mounting seat 112 has a liquid guide channel 1124. Specifically, the liquid guide channel 1124 can be formed in the mounting top cover 1121, for example, the side wall 1121b of the mounting top cover 1121 can form the liquid guide channel 1124, or the second sealing member 116 and the third sealing member 117 cooperate with the side wall 1121b of the mounting top cover 1121 to form the liquid guide channel 1124. The liquid guide channel 1124 is in communication with the liquid outlet hole 1121d, so that the liquid guide channel 1124 is in communication with the liquid storage cavity 1111. The liquid guide channel 1124 can guide the aerosol generating substrate in the liquid storage cavity 1111 to the side wall of the atomization core 113 and / or the side of the atomization core 113 away from the air outlet hole 1121c. In this embodiment, the liquid guide channel 1124 guides the aerosol generating substrate to the side of the atomization core 113 away from the air outlet hole 1121c. Specifically, the one end of the third sealing member 117 close to the atomization core 113 is provided with a liquid guide groove 1171, and the liquid guide groove 1171 is in communication with the liquid guide channel 1124. The liquid guide groove 1171 can guide the aerosol generating substrate in the liquid guide channel 1124 to the side of the atomization core 113 away from the top wall 1121a of the mounting top cover 1121, so that the atomization core 113 can heat and atomize the aerosol generating substrate to generate aerosol. In other embodiments, the second sealing member 116 can be provided with a liquid guide groove 1171 to guide the aerosol generating substrate in the liquid guide channel 1124 to the side wall of the atomization core 113. By providing the liquid guide channel 1124 and the liquid guide groove 1171, the aerosol generating substrate in the liquid storage cavity 1111 can flow to the side of the atomization core 113 or the side opposite to the atomization surface 1131, so that the atomization core 113 can absorb the aerosol generating substrate and guide the aerosol generating substrate to the atomization surface 1131 to heat and form aerosol.

[0091] Please refer to Figure 9 , Figure 9 for Figure 2 the partial cross-sectional view of the atomizer along B-B, Figure 9 the arrows in the figure indicate the airflow path in the atomizer 11.

[0092] In an embodiment, the side wall 1121b of the mounting seat 112 cooperates with the side wall 1113a of the mounting cavity 1113 to form an air guide channel 1125. One end of the air guide channel 1125 is in communication with the air inlet 1122a of the atomizer 11, so that the ambient air 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 in communication with the atomization cavity 1123, so that the airflow in the air guide channel 1125 can enter the atomization cavity 1123.

[0093] Further, the mounting seat 112 is provided with an air inlet hole 1125a, which can be provided on the side wall 1121b of the mounting top cover 1121. One end of the air inlet hole 1125a is connected with the air guide channel 1125, and the other end is in communication with the atomization cavity 1123, so that the airflow in the air guide channel 1125 can enter the atomization cavity 1123 through the air inlet hole 1125a. The air inlet hole 1125a can be arranged on the side of the atomization surface 1131 facing the air outlet hole 1121c, for example, the air inlet hole 1125a can be arranged between the atomization surface 1131 and the air outlet hole 1121c, so that the airflow entering the atomization cavity 1123 can carry the aerosol generated by the atomization surface 1131 of the atomization core 113, flow through the air outlet hole 1121c to the air outlet channel 1112, and finally flow out of the atomizer 11 through the air outlet 1112a for the user to use.

[0094] Specifically, please refer to Figure 5 and Figure 10 , Figure 10 for Figure 3 another cross-sectional view of the mounting seat and the atomization core after assembly.

[0095] 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 the air guide channel 1125, and the air guide channel 1125 is provided with the air inlet hole 1125a near the top wall 1121a of the mounting top cover 1121. In other embodiments, the side wall 1113a of the mounting cavity 1113 can be provided with the air guide groove 1121e, and the side wall 1121b of the mounting seat 112 cooperates with the bottom wall of the air guide groove 1121e to form the air guide channel 1125. The forming mode of the air guide channel 1125 is not limited to the above-mentioned mode.

[0096] In an 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.

[0097] 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.

[0098] 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.

[0099] 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.

[0100] 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.

[0101] 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.

[0102] 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.

[0103] 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.

[0104] 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 the aerosol in the convection of the cold air is too small, which can cause the aerosol amount flowing out of the air outlet 1112a of the atomizer 11 to be too small.

[0105] In this embodiment, the parameters of the atomizer 11 used in the experiment are as follows: 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°, the atomizing amount 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 draw the distance-air outlet aerosol smoke amount curve with similar mathematical relationships through the experimental results.

[0106] Referring to Table 1, Figure 13 and Figure 14 Table 1 is the experimental results of the temperature and aerosol amount of the aerosol flowing out of the air 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 is a distance-air outlet aerosol temperature curve drawn according to the experimental results of Table 1, Figure 14 is a distance-air outlet aerosol amount curve drawn according to the experimental results of Table 1.

[0107] Table 1

[0108]

[0109] From the experimental results, it can be seen that when h = 0, the aerosol amount flowing out of the air outlet 1112a of the atomizer 11 is large, but the temperature of the aerosol flowing out of the air outlet 1112a of the atomizer 11 is high, resulting in poor user experience. When h > 0, the temperature of the aerosol flowing out of the air outlet 1112a of the atomizer 11 decreases, and the greater h is, the more significantly the temperature of the aerosol flowing out of the air outlet 1112a of the atomizer 11 decreases, but the aerosol amount flowing out of the air outlet 1112a of the atomizer 11 decreases with the increase of h. When h = 0.7, the aerosol amount flowing out of the air outlet 1112a of the atomizer 11 decreases to 7.19 mg / puff.

[0110] Therefore, a distance h can be set between the atomization face 1131 and the air inlet hole 1125a. For example, for the atomizer used in the above experiment, the distance h ranges from 0 mm to 0.7 mm. The value of h can be 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, etc. Preferably, 0.2 mm≤h≤0.5 mm. By setting the distance h between the atomization face 1131 and the air inlet hole 1125a to reduce the temperature of the aerosol flowing out of the air outlet 1112a, the distance between the atomization face 1131 and the bottom surface 1125b of the air inlet hole 1125a close to the atomization face 1131 can be set in an appropriate range, so that the temperature of the aerosol flowing out of the air outlet 1112a of the atomizer 11 is reduced, and at the same time, the amount of smoke of the aerosol flowing out of the air outlet 1112a of the atomizer 11 is not too small, which is beneficial to improve the user experience.

[0111] In this embodiment, the inventor also tried to reduce the temperature of the aerosol flowing out of the air outlet 1112a by increasing the length of the air outlet channel 1112. Experiments show that when the length of the air outlet channel 1112 is 29.4 mm, the temperature of the aerosol flowing out of the air outlet 1112a is 93.16°; when the length of the air outlet channel 1112 increases by 13 mm to 42.4 mm, the temperature of the aerosol flowing out of the air outlet 1112a is 87°. Although the temperature is reduced by 6.17°, the length of the air outlet channel 1112 increases by more than 50%, which is unacceptable for product design. Therefore, the technical solution of setting a distance h between the atomization face 1131 and the air inlet hole 1125a has obvious performance and effect improvement. For reference Figure 15 , Figure 15 For h=0 mm and h=0.4 mm, the columnar diagram of the experimental results of the temperature and the amount of aerosol flowing out of the air outlet 1112a of the atomizer 11 is shown in FIG. 8. Figure 15 As can be seen from FIG. 8, when h=0 mm, the temperature of the aerosol flowing out of the air outlet 1112a is 102.7° C, and the amount of aerosol flowing out of the air outlet 1112a is 7.54 mg / puff; when h=0.4 mm, the temperature of the aerosol flowing out of the air outlet 1112a is 86.4° C, and the amount of aerosol flowing out of the air outlet 1112a is 7.33 mg / puff; when h=0.4 mm, the temperature of the aerosol flowing out of the air outlet 1112a of the atomizer 11 is greatly reduced, and the amount of aerosol flowing out of the air outlet 1112a of the atomizer 11 is not too small.

[0112] In one embodiment, as shown in FIG. 9, Figure 16 , Figure 16 is an exploded structural schematic diagram of the top cover, the atomization core, the second sealing member, the third sealing member, and the mounting base. Figure 3

[0113] ​The mounting base 1122 comprises a bottom 1122b and a supporting portion 1122c, the mounting top cover 1121 is sleeved on the supporting portion 1122c and abuts against the bottom 1122b, the supporting portion 1122c is arranged in the atomization cavity 1123, and the atomization core 113 is arranged on one side of the supporting portion 1122c close to the top wall of the mounting top cover 1121. By adjusting the height of the supporting portion 1122c, the position of the atomization core 113 can be adjusted, and then the distance h between the air inlet hole 1125a and the atomization surface 1131 of the atomization core 113 can be adjusted.

[0114] In an embodiment, as shown in Figure 2 and Figure 17 , as shown in Figure 17 , as shown in Figure 3 , as shown in

[0115] The end cover 114 covers one end of the shell 111 away from the air outlet 1112a, for example, the end cover 114 can be sleeved on one end of the shell 111 away from the air outlet 1112a, and the shell 111 and the end cover 114 are detachably connected.

[0116] Further, the side of the mounting base 1122 away from the mounting top cover 1121 has an air inlet 1122a, the end cover 114 is provided with a through hole 1141, the through hole 1141 is in communication with the external atmosphere, and the air inlet 1122a is in communication with the through hole 1141, so that the external atmosphere can enter the air inlet 1122a.

[0117] In the embodiment, the bottom 1122b of the mounting base 1122 away from the supporting portion 1122c has a first groove 1122d, and the first groove 1122d is in communication with the through hole 1141 as the air inlet hole 1125a. The first groove 1122d has a first opening 1122e penetrating the bottom 1122b of the mounting base 1122 at one end close to the air guide groove 1121e. The first opening 1122e can be a through hole or a notch at the edge of the bottom 1122b. The first opening 1122e is in communication with the air guide groove 1121e close to the bottom 1122b, so that the airflow can flow from the first groove 1122d into the air guide groove 1121e.

[0118] The number of the first openings 1122e can be the same as the number of the air guide grooves 1121e. In the embodiment, the number of the first openings 1122e is two, and the two first openings 1122e are arranged opposite to the two air guide grooves 1121e, and the two first openings 1122e are in communication with the two air guide grooves 1121e respectively.

[0119] In an embodiment, as shown in Figure 17 and Figure 18 , as shown in Figure 18 , as shown inFigure 3 Another exploded view of the installation of the top cover, the atomizing core, the second seal, the third seal, and the installation base.

[0120] The atomizer 11 further includes two electrode connecting members 118, one end of each electrode connecting member 118 is electrically connected to one of the electrodes 1135, and the other end is arranged on the surface of the bottom portion 1122b of the installation base 1122 facing away from the support portion 1122c and exposed through the through hole 1141 of the end cover 114, so that the electrode connecting member 118 can be electrically connected to the battery assembly 12, and thus the battery assembly 12 can supply power to the atomizing core 113. In one embodiment, the two electrode connecting members 118 are arranged on the two sides of the atomizing core 113, respectively, and are arranged correspondingly to the positions of the electrodes 1135. That is, the two electrode connecting members 118 are arranged symmetrically about the center.

[0121] Further, the surface of the bottom portion 1122b facing away from the support portion 1122c is provided with two second grooves 1122f for accommodating the ends of the two electrode connecting members 118 away from the atomizing core 113. Specifically, the second groove 1122f near the side of the shell 111 has a second opening 1122g, which can be a notch arranged on the edge of the bottom portion 1122b, and the end of each electrode connecting member 118 away from the atomizing core 113 is arranged in the corresponding second groove 1122f through the corresponding second opening 1122g. The arrangement of the electrode connecting member 118 is not limited to the manner provided in the present application, and other arrangements can also be used as long as the two electrodes 1135 of the atomizing core 113 can be electrically connected to the battery assembly 12.

[0122] Please refer to Figure 19 , Figure 19 A partial structure schematic view of the second embodiment of the atomizer provided in the present application.

[0123] 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 arranged in the air outlet passage 1112. The cooling structure 119 is configured to reduce the temperature of the aerosol flowing through the air outlet passage 1112.

[0124] By arranging the cooling structure 119 in the air outlet passage 1112, the flow state of the aerosol near the wall surface of the air outlet passage 1112 is interfered, the heat transfer coefficient of the wall surface of the air outlet passage 1112 is increased, and thus the temperature of the aerosol flowing out of the air outlet 1112a of the atomizer 11 is reduced, which is beneficial to improving the user experience.

[0125] It can be understood that, on the premise that the temperature reduction structure 119 is arranged to reduce the temperature of the aerosol at the air outlet 1112a, the distance h between the atomization face of the atomization core 113 and the air inlet hole 1125a is optional (the distance h between the atomization face of the atomization core 113 and the air inlet hole 1125a is specifically introduced in the first embodiment of the atomizer 11). Compared with only arranging the temperature reduction structure 119 in the air outlet channel 1112, on the basis of arranging the temperature reduction structure 119 in the air outlet channel 1112, the distance h between the atomization face of the atomization core 113 and the air inlet hole 1125a is arranged as above, which can better reduce the temperature of the aerosol at the air outlet 1112a. The way of reducing the temperature of the aerosol at the air outlet 1112a can be designed according to specific needs.

[0126] The temperature reduction structure 119 can absorb the heat of the aerosol on the one hand, and can interfere with the flow field near the wall surface of the air outlet channel 1112 on the other hand, so as to improve the heat exchange efficiency between the aerosol and the wall surface of the air outlet channel 1112. In a specific embodiment, the temperature reduction structure 119 is a spiral member (not shown in the figure), which is arranged in the air outlet channel 1112 and is spaced apart from the inner wall surface of the air outlet channel 1112, and can interfere with the flow field near the wall surface of the air outlet channel 1112, so as to improve the heat exchange efficiency between the aerosol and the wall surface of the air outlet channel 1112, thereby reducing the temperature of the aerosol at the air outlet 1112a. The spiral member can be fixed in the air outlet channel 1112 by a fixing structure. Preferably, the material of the spiral member is metal spring, which has simple manufacturing process and better heat absorption effect than other materials, and is beneficial to further reduce the temperature of the aerosol at the air outlet 1112a.

[0127] In an embodiment, the cooling structure 119 is a protrusion 1191 arranged on the inner wall of the air outlet channel 1112. Optionally, the protrusion 1191 is integrally formed with the side wall of the air outlet channel 1112, i.e., similar to a corrugated tube structure. Optionally, the cooling structure 119 is a separate element, and a spiral element (not shown in the figure) is arranged in the air outlet channel 1112, and the outer wall of the spiral element is arranged in abutment with the inner wall of the air outlet channel 1112, so that the spiral element serves as the protrusion 1191 of the inner wall of the air outlet channel 1112. The inner wall of the air outlet channel 1112 is a smooth surface, and the spiral element is fixed by the friction between the spiral element and the air outlet channel 1112; or, the inner wall of the air outlet channel 1112 is provided with a spiral groove that cooperates with the spiral element to fix the spiral element, and the diameter of the spiral element is greater than the depth of the spiral groove, so as to form the protrusion 1191. For example, the spiral element is inserted into the spiral groove of the air outlet channel 1112 in a rotating manner during assembly. Preferably, the spiral element is a metal spring, and the metal material has better heat absorption and heat conduction effect than other materials, which is beneficial to further reduce the temperature of the aerosol at the air outlet 1112a. In an embodiment, the diameter of the metal spring is 0.2-0.3 mm, the diameter of the metal spring is the height of the protrusion 1191 formed, and the pitch of the metal spring is the distance between adjacent protrusions 1191; wherein the diameter of the metal spring is the diameter of the metal wire used to make the metal spring. For example, when the diameter of the metal spring is 0.2-0.3 mm, the diameter of the metal spring is 3 mm, and the length of the air outlet channel 1112 is 28 mm, a better cooling effect can be achieved.

[0128] It can be understood that when the protrusion 1191 is integrally formed with the side wall of the air outlet channel 1112, the size of the protrusion 1191 and the size between adjacent protrusions 1191 can be designed according to the height of the protrusion 1191, the distance between the centers of adjacent protrusions 1191, and the ratio of the distance to the height of the protrusion 1191, which will be described later. When the protrusion 1191 is formed by a spiral element, the selection of the spiral element can also be based on the height of the protrusion 1191, the distance between the centers of adjacent protrusions 1191, and the ratio of the distance to the height of the protrusion 1191, which will be described later.

[0129] Please refer to Figures 20-23 , Figure 20 FIG. 1 is a structural schematic diagram of a first experimental piece, Figure 21 FIG. 2 is a structural schematic diagram of a second experimental piece, Figure 22 FIG. 3 is a temperature distribution diagram of the airflow at the outlet of the first experimental piece, Figure 23 FIG. 4 is a temperature distribution diagram of the airflow at the outlet of the second experimental piece.

[0130] Figure 20The first experimental piece shown is a circular tube 30 with a smooth inner wall surface, and the length of the circular tube 30 is 50 mm. The port on the left side of the circular tube 30 is the inlet, and the port on the right side of the circular tube 30 is the outlet, and the gas flow is from the inlet to the outlet.

[0131] Figure 21 The second experimental piece shown is a circular tube 30 with a protrusion 31 on the inner wall surface, and the length of the circular tube 30 is 50 mm, and the height of the protrusion 31 is 0.5 mm; wherein, along the height direction of the protrusion 31, the cross-sectional shape of the protrusion 31 is square. The protrusion 31 is arranged along the inner surface of the circular tube 30 for one turn. The port on the left side of the circular tube 30 is the inlet, and the port on the right side of the circular tube 30 is the outlet, and the gas flow is from the inlet to the outlet.

[0132] Using the same gas, the first experimental piece and the second experimental piece are respectively flowed through at the same flow rate, and the gas flow temperature at the outlet of the first experimental piece (as shown in Figure 22 ) and the gas flow temperature at the outlet of the second experimental piece (as shown in Figure 23 ) are obtained. 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 temperature of the gas flow at the outlet is in the central region; from Figure 22 , it can be known that the highest temperature of the gas flow at the outlet of the first experimental piece is 84.6°C. For the gas flow temperature at the outlet of the second experimental piece, the temperature gradually increases from the pipe wall to the center, that is, the highest temperature of the gas flow at the outlet is in the central region; from Figure 23 , it can be known that the highest temperature of the gas flow at the outlet of the second experimental piece is 73.3°C. It can be seen that the protrusion 31 arranged on the inner wall surface of the circular tube 30 reduces the highest temperature at the outlet by 13.4%, and the cooling effect is obvious. That is, the protrusion 119 (i.e., the cooling structure 119) arranged on the inner wall surface of the outlet passage 1112 can obviously reduce the temperature of the aerosol at the outlet 1112a, which is beneficial to improve the user's experience. Wherein, the gas for the experiment is aerosol or has similar characteristics to aerosol.

[0133] It can be understood that the protrusion 31 in the second experimental piece is arranged circumferentially and spaced apart along the inner surface of the circular tube 30, which can also obviously reduce the temperature of the aerosol at the outlet.

[0134] Please refer to Figure 24 and Figure 25 , Figure 24 is a schematic diagram of the variation law of the local surface heat transfer coefficient corresponding to different boundary layer shapes, Figure 25 is a schematic diagram of the flow path of the gas flow in the outlet passage of Figure 19 .

[0135] The principle of arranging the protrusion 119 (i.e., the cooling structure 119) in the outlet passage 1112 to reduce the temperature of the aerosol at the outlet 1112a is as follows:

[0136] In Figure 24 which the horizontal axis x represents the distance between the fluid and the inlet of the pipe, and the vertical axis h x represents the heat transfer coefficient. The fluid enters the pipe from the inlet of the pipe, and after the fluid enters the pipe, the form of the boundary layer is divided into a laminar boundary layer, a transition zone, and a turbulent boundary layer. The heat transfer coefficient of the turbulent boundary layer is higher than that of the laminar boundary layer. For the laminar boundary layer form, the heat transfer in the laminar boundary layer is mainly through heat conduction, and the thermal conductivity of air is small, so the overall heat transfer coefficient is at a low level. In the laminar boundary layer, the heat transfer coefficient decreases as the thickness of the laminar boundary layer increases. When the boundary layer form changes from the transition zone to the fully developed turbulent boundary layer form, there are two forms of heat transfer, heat conduction and heat convection, in the turbulent boundary layer, so the local surface heat transfer coefficient can be maintained at a high value. During the flow of the fluid, part of the fluid adheres to the wall of the pipe, and there is a laminar sublayer in the turbulent boundary layer.

[0137] Under the premise that the inner wall surface of the air outlet passage 1112 is smooth, the flow speed of the aerosol in the air outlet passage 1112 is usually not high, and the flow boundary layer near the wall surface is close to the laminar form. After the protrusion 1191 structure is added to the inner wall surface of the air outlet passage 1112, the flow boundary layer near the wall surface is artificially disturbed, and changes from the regular laminar form to the turbulent form, as shown in Figure 25 , which improves the heat transfer coefficient between the side wall of the air outlet passage 1112 and the aerosol in the air outlet passage 1112. After the heat transfer coefficient is improved, the heat transfer between the aerosol and the side wall of the air outlet passage 1112 is facilitated, and more heat is absorbed by the side wall of the air outlet passage 1112, thereby achieving the purpose of reducing the temperature of the aerosol at the air outlet 1112a.

[0138] Please refer to Figure 26 and Figure 27 , Figure 26 is the velocity field distribution diagram in the air outlet passage of the existing atomizer, Figure 27 is the velocity field distribution diagram in the air outlet passage of the second embodiment of the atomizer provided in the present application.

[0139] Generally, the flow field in the air outlet passage 1112 can be divided into a near-wall region and a main flow region, and the heat exchange between the aerosol and the side wall of the air outlet passage 1112 mainly occurs in the near-wall region. Referring to Figure 26 and Figure 27 , it can be seen that the protrusion 1191 (i.e., the cooling structure 119) arranged on the inner wall surface of the air outlet passage 1112 has a greater effect on the aerosol in the near-wall region, changes the laminar boundary layer state to the turbulent boundary layer state, and improves the heat exchange efficiency between the aerosol and the side wall of the air outlet passage 1112, while the aerosol in the main flow region has a smaller effect. From Figure 26 and Figure 27It can be seen that the flow velocity in the near-wall region is less than 3ms-1, the flow velocity in the near-wall region is faster, the flow velocity in the main flow region is greater than 3ms-1. That is to say, the protrusion 1191 (i.e. the cooling structure 119) arranged on the inner wall of the air outlet passage 1112 has an effect on the local flow field of the near-wall region of the air outlet passage 1112, and has little effect on the flow field of the main flow region and other regions, and will not affect the aerosol inhalation amount of the user. Among them, the flow field is a velocity field.

[0140] In specific embodiments, 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 size of the protrusion 1191 as above, the effect of reducing the temperature of the aerosol at the air 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., which is specifically designed according to needs. Next, taking the cross section of the protrusion 1191 as square and circular as examples, 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 are introduced in detail.

[0141] Please refer to Figure 28 and Figure 29 , Figure 28 for Figure 19 the structure schematic diagram of the cross section of the protrusion being square, Figure 29 for the structure schematic diagram of the cross section of the protrusion being circular in another embodiment.

[0142] In Figure 28 , along the height direction of the protrusion 1191, the cross section of the protrusion 1191 is square. In Figure 29 , along the height direction of the protrusion 1191, the cross section of the protrusion 1191 is circular. Figure 28 and Figure 29 , the height of the protrusion 1191 is represented by "H", and the distance between the centers of adjacent protrusions 1191 is represented by "P".

[0143] The height of the protrusion 1191 has a great influence on the heat exchange efficiency and the suction resistance of the atomizer 11, so the height of the protrusion 1191 can be designed by comprehensively considering the aerosol cooling effect at the air outlet 1112a and the suction resistance of the atomizer 11. The distance between the centers of adjacent protrusions 1191 affects the flow field at the near-wall region of the air outlet passage 1112, and the flow field at the near-wall region of the air outlet passage 1112 is also related to the height of the protrusion 1191, so the distance between the centers of adjacent protrusions 1191 can be designed by analyzing the flow field and the height of the protrusion 1191.

[0144] It can be understood that the cross-sectional shape has less influence on the resistance when the protrusions 1191 have similar sizes (e.g., cross-sectional areas of the protrusions 1191 in the same direction). According to the resistance requirement of the design standard of the atomizer 11, the upper limit of the resistance caused by the protrusions 1191 is set to 100 Pa. Taking the protrusions 1191 with square cross-sections as an example, the relationship between the height of the protrusions 1191, the length of the air outlet channel 1112, and the resistance of the atomizer 11 is studied, and the optimal value of the height of the protrusions 1191 is determined.

[0145] The research results are shown in Figure 30 and Figure 31 . Figure 30 is a graph showing the variation of the resistance of the air outlet channel 1112 with the height of the protrusions 1191 at different lengths of the air outlet channel 1112, and Figure 31 is a temperature distribution diagram of the air outlet corresponding to different heights of the protrusions 1191.

[0146] It can be seen from Figure 30 that the resistance of the air outlet channel 1112 increases with the increase of the height of the protrusions 1191 and the length of the air outlet channel 1112; the smaller the length of the air outlet channel 1112, the greater the upper limit of the height of the protrusions 1191. For example, when the length of the air outlet channel 1112 is 20 mm, the height of the protrusions 1191 can be 0.6 mm or even 0.62 mm; therefore, the upper limit of the height of the protrusions 1191 is preferably 0.6 mm. The length of the air outlet channel 1112 is denoted by “L” in Figure 30 . The experimental conditions are as follows: the diameter of the air outlet channel 1112 is 3 mm.

[0147] It can be seen from 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 passage 1112 is the same, when the protrusion 1191 is not arranged, the highest temperature of the aerosol at the outlet 1112a is 84.6°C; when the height of the protrusion 1191 is 0.1 mm, the highest temperature of the aerosol at the outlet 1112a is 83.8°C, which is 0.9% lower than that when the protrusion 1191 is not arranged; when the height of the protrusion 1191 is 0.2 mm, the highest temperature of the aerosol at the outlet 1112a is 81.7°C, which is 3.4% lower than that when the protrusion 1191 is not arranged; when the height of the protrusion 1191 is 0.3 mm, the highest temperature of the aerosol at the outlet 1112a is 78.5°C, which is 7.2% lower than that when the protrusion 1191 is not arranged; when the height of the protrusion 1191 is 0.4 mm, the highest temperature of the aerosol at the outlet 1112a is 75.3°C, which is 11% lower than that when the protrusion 1191 is not arranged; when the height of the protrusion 1191 is 0.5 mm, the highest temperature of the aerosol at the outlet 1112a is 73.3°C, which is 13.4% lower than that when the protrusion 1191 is not arranged. That is, the higher the height of the protrusion 1191, the lower the highest temperature of the aerosol at the outlet 1112a, and the better the cooling effect; preferably, the height of the protrusion 1191 is greater than or equal to 0.3 mm. The experimental conditions are that the diameter of the outlet passage 1112 is 3 mm, and the temperature of the aerosol entering and exiting the outlet passage 1112 is 100°C.

[0148] Please refer to Figure 32 , Figure 32 The calculation diagram of the flow field with the protrusion having a square cross section.

[0149] Reference Figure 32 The protrusion 31 is arranged in a circular pipe 30 with a diameter of 1.5 mm. Along the height direction of the protrusion 31, the cross section of the protrusion 31 is square, and the gas flows through the circular pipe 30 at a speed of 2.6 m / s. The selected gas has similar properties to the aerosol properties; the flow rate of the gas is the actual flow rate of the aerosol in the outlet passage 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”.

[0150] Different heights of the protrusion 31 are taken to Figure 32 The structure diagram is used to experiment, and the change law of the heat exchange coefficient with the ratio of the distance between the centers of adjacent protrusions 31 to the height of the protrusion 31 (P / H) is studied. The research results are shown in Figure 33 Figure 33 The change law diagram of the heat exchange coefficient of the protrusion with a square cross section at different heights. From Figure 33 ​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.

[0151] 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.

[0152] 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.

[0153] 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.

[0154] 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.

[0155] Please refer to Figure 36 , Figure 36 This is a schematic diagram of the flow field calculation for a convex cross-section.

[0156] 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.

[0157] 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.

[0158] 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.

[0159] 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.

[0160] 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.

[0161] From Figure 39 It can be seen that for the protrusions 31 with a circular cross-section, the ratio of the distance between the centers of adjacent protrusions 31 to the height of the protrusions 31 (P / H) is 7-20, and the cooling effect is the best. Therefore, when the protrusions 1191 arranged on the inner wall surface of the air outlet passage 1112 have a circular cross-section, the ratio of the distance between the centers of adjacent protrusions 1191 to the height of the protrusions 1191 is 7-20, and optionally, 11-16.

[0162] Therefore, for the protrusions 1191 with a square or circular cross-section, the optimal design of the ratio of the height of the protrusions 1191 to the distance between the centers of adjacent protrusions 1191 is shown in Table 2.

[0163] Table 2

[0164]

[0165]

[0166] That is, no matter whether the protrusions 1191 have a square or circular cross-section, when the length of the air outlet passage 1112 is less than or equal to 20 mm, the height of the protrusions 1191 is 0.6 mm-0.7 mm; when the length of the air outlet passage 1112 is greater than 20 mm and less than or equal to 30 mm, the height of the protrusions 1191 is 0.5 mm-0.6 mm; when the length of the air outlet passage 1112 is greater than 30 mm and less than or equal to 40 mm, the height of the protrusions 1191 is 0.4 mm-0.5 mm; when the length of the air outlet passage is greater than 40 mm and less than or equal to 50 mm, the height of the protrusions 1191 is 0.35 mm-0.45 mm; and when the length of the air outlet passage is greater than 50 mm, the height of the protrusions 1191 is 0.3 mm-0.4 mm. Among them, when the length of the air outlet passage 1112 is less than 20 mm, the height of the protrusions 1191 is optionally 0.6 mm. When the length of the air outlet passage is greater than 40 mm and less than 50 mm, the height of the protrusions 1191 is optionally 0.4 mm.

[0167] When the cross section of the protrusion 1191 is square, the ratio of the distance between the centers of adjacent protrusions 1191 to the height of the protrusion 1191 is 10-20. When the cross section of the protrusion 1191 is circular, the ratio of the distance between the centers of adjacent protrusions 1191 to the height of the protrusion 1191 is 7-20. It can be understood that when the cross section of the protrusion 1191 is square or circular, the width of the protrusion 1191 is the same as the height of the protrusion 1191, and 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 the protrusion 1191 are designed, which also considers the influence of the width of the protrusion 1191 on the temperature of the aerosol at the air outlet 1112a.

[0168] Please refer to Figure 40 , Figure 40 a partial structure schematic diagram of a third embodiment of an atomizer provided in the present application.

[0169] 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, and the difference is that the air outlet passage 1112 of the atomizer 11 is first divided into a plurality of sub-air outlet passages 1112b at one end away from the atomizing core 113 and then converges together.

[0170] When the user sucks through the air outlet 1112a, the tongue is located at or corresponds to the center position A of the air outlet 1112a, and the tongue is the key to temperature perception. By reducing the temperature of the center position A of the air outlet 1112a, the temperature of the aerosol perceived by the user can be reduced, and the user's use experience can be improved. The present inventors have found that if the air outlet passage 1112 adopts a straight-through structure, the aerosol flowing out of the center position A of the air outlet 1112a is higher in temperature than the aerosol flowing out of the surrounding (for specific test results, please refer to Figure 42 of the present application). That is, the aerosol atomized by the atomizing core 113 first flows into a plurality of sub-air outlet passages 1112b at one end of the air outlet passage 1112 away from the atomizing core 113 and then converges together to flow out from the air outlet 1112a. The aerosol is cooled during the process of being divided, and the temperature perceived by the user when sucking the aerosol through the air outlet 1112a is significantly reduced relative to the straight-through air outlet passage 1112, which is beneficial to improving the user's use experience. The number of the plurality of sub-air outlet passages 1112b can be designed as needed.

[0171] In an embodiment, a partition 1112c is arranged in the air outlet channel 1112 to divide the air outlet channel 1112 into two sub-air outlet channels 1112b away from one end of the atomizing core 113, so as to make the air outlet channel 1112 split first; wherein the extension direction of the partition 1112c is the same as the extension direction of the air outlet channel 1112. The end face of the partition 1112c close to one end of the air outlet 1112a is arranged spaced apart from the air outlet 1112a, so as to make the air outlet channel 1112 converge together after splitting (as shown in Figure 40 ). That is, the air outlet channel 1112 includes a first part, a second part and a third part, the entrance of the air outlet channel 1112 is the entrance of the first part, and the exit of the third part is the air outlet 1112a; the first part and the third part are straight pipes, and the partition 1112c is arranged in the second part, so that the second part has a significant splitting effect relative to the first part and the third part, so as to achieve the splitting cooling. It can be understood that the number of the sub-air outlet channels 1112b can be designed as needed, and the structure of the partition 1112c can be designed according to the number of the sub-air outlet channels 1112b.

[0172] The partition 1112c can be integrally formed with the air outlet channel 1112, or can be fixed together with the air outlet channel 1112 by clamping or the like, which is designed according to the needs. The thickness of the partition 1112c is designed according to the needs, which can divide the air outlet channel 1112 into two sub-air outlet channels 1112b away from one end of the atomizing core 113, and can cool the aerosol flowing through the sub-air outlet channels 1112b. It can be understood that the aerosol is mixed and cooled with the air in the sub-air outlet channels 1112b, and the aerosol flowing through the sub-air outlet channels 1112b is heated by the cavity wall of the sub-air outlet channels 1112b, so as to reduce the temperature of the aerosol at the air outlet 1112a. Further, since the aerosols in the two sub-air outlet channels 1112b converge and mix at the center position A of the air outlet 1112a, the temperature of the aerosol flowing out of the center position A is further reduced (for details, see the test results of Figure 44 ).

[0173] Optionally, the partition 1112c can be a solid plate, that is, part of the cavity wall of the two sub-air outlet channels 1112b is shared, at this time the thickness of the partition 1112c needs to be able to reduce the temperature of the aerosol in the two sub-air outlet channels 1112b.

[0174] Optionally, the partition plate 1112c can be a hollow plate, that is, the inside of the partition plate 1112c is hollow, and the two sub-gas outlet channels 1112b are two completely separated channels; the thickness of the partition plate 1112c and the width of the hollow cavity inside the partition plate 1112c (the width of the hollow cavity inside the partition plate 1112c is the size along the thickness direction of the partition plate 1112c) determine the thickness of the partition plate 1112c, and the thickness of the partition plate 1112c and the width of the hollow cavity inside the partition plate 1112c are designed according to the needs, which can achieve the purpose of shunt cooling. Optionally, the partition plate 1112c is a rectangular hollow plate.

[0175] Optionally, whether the partition plate 1112c is a rectangular solid plate or a rectangular hollow plate, the ratio of the length of the partition plate 1112c (the length of the partition plate 1112c is the size along the extension direction of the gas outlet channel 1112) to the length of the gas outlet channel 1112 is 1:5-1:4. By setting as above, a better shunt cooling effect can be achieved; under the premise that the overall size of the atomizer 11 is almost unchanged, the storage space of the liquid storage cavity 1111 will not be reduced too much, avoiding that the storage amount of the liquid storage cavity 1111 cannot meet the user's demand.

[0176] Specifically, the end of the gas outlet channel 1112 away from the atomizing core 113 is enlarged in the width direction of the atomizer 11 to form a widened section B; the widened section B is the second part and the third part of the gas outlet channel 1112. The partition plate 1112c is arranged in the widened section B and parallel to the thickness direction of the atomizer 11 to divide the end of the gas outlet channel 1112 away from the atomizing core 113 into two sub-gas outlet channels 1112b; the end face of the partition plate 1112c close to the gas outlet 1112a is arranged in a spaced manner with the gas outlet 1112a, so that the third part of the gas outlet channel 1112 is a straight-through pipe, and the aerosols in the two sub-gas outlet channels 1112b converge together in the third part and then flow out from the gas outlet 1112a. By arranging the widened section B on the gas outlet channel 1112, the partition plate 1112c arranged in the widened section B can have a larger thickness, which can better cool the aerosols in the two sub-gas outlet channels 1112b. In an embodiment, the end face of the widened section B close to the atomizing core 113 is flush with the end face of the partition plate 1112c close to the atomizing core 113, that is, the widened section B starts to widen the channel width of the gas outlet channel 1112 only at the position where the partition plate 1112c is arranged.

[0177] 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, and the second section is 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, so that the longitudinal section of the first section along the direction away from the atomizing core 113 is 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 (for example, the cross-sectional shape of the second section is a rectangle, and the length of the rectangle is the same along the extension direction of the second section). Figure 40The first section of the widened section B is set as a tapered structure, which can avoid the aerosol forming vortex at the corner of the widened section B, and further avoid the influence of the structure of the widened section B on the amount of aerosol flowing out of the air outlet 1112a.

[0178] The two sub-air outlet channels 1112b can be symmetrically arranged along the partition plate 1112c, so that the atomized aerosol of the atomizing core 113 flows through the two sub-air outlet channels 1112b, and the aerosol can achieve the same cooling effect in the two sub-air outlet channels 1112b.

[0179] Please refer to Figures 41-44 , Figure 41 for the schematic diagram of the local structure of the existing atomizer, Figure 42 for Figure 41 the aerosol temperature distribution cloud map of the air outlet of the atomizer provided, Figure 43 for Figure 40 the aerosol temperature distribution cloud map of the air outlet of the atomizer provided, Figure 44 for Figure 40 the flow velocity vector distribution diagram of the several surfaces of the air outlet channel of the atomizer provided close to the end of the air outlet.

[0180] Figure 41 The structure of the atomizer provided is different from that of the atomizer 11 provided by Figure 40 The air outlet channel of the atomizer in Figure 41 is a straight-through structure, and the air outlet channel of the atomizer 11 provided by Figure 41 is a bifurcated structure. Figure 40 The existing atomizer provided by Figures 42-44 was tested, and the test conditions were as follows: the diameter of the air outlet channel was 2.5 mm, the length of the air outlet channel was 32.9 mm, the initial temperature of the S-shaped heating layer 1134 on the atomizing core was 250°C, and the atomization amount was 3s / 9mg. Figures 42-44 The test results are shown in

[0181] It can be seen from Figure 44 that when the aerosol is mixed after being bifurcated into two sub-air outlet channels 1112b in the air outlet channel 1112, there will be a mixed vortex area at the center position A, which will further reduce the temperature of the aerosol at the center position A during the mixing process, so that the highest temperature of the air outlet 1112a is located on both sides of the center position A, which is beneficial to reduce the temperature of the aerosol perceived by the user.

[0182] Comparing Figure 42 andFigure 43 When the air outlet channel is a straight-through structure, the aerosol flows out directly after flowing through the air outlet channel, the aerosol mixing at the air outlet is poor, the aerosol temperature at the air outlet is relatively concentrated at the center position of the air outlet channel, and the highest temperature is as high as 80℃; when the air outlet channel 1112 is provided with a shunt cooling structure, due to the shunt effect, the aerosol is mixed and cooled with air in the two sub-air outlet channels 1112b and is heat-absorbed by the cavity walls of the two sub-air outlet channels 1112b, although the aerosol is again gathered together at the air outlet 1112a, the temperature at the center position A is obviously reduced, the temperature at the center position A is about 69℃, the highest temperature of the air outlet 1112a is located on both sides of the center position A, and the highest temperature of the air outlet 1112a is also reduced to about 74℃, and the overall cooling effect is about 5℃-10℃.

[0183] Tests prove that the air outlet channel 1112 is first shunted into multiple sub-air outlet channels 1112b at the end far from the atomizing core 113 and then gathered together, which significantly reduces the aerosol temperature at the air outlet 1112a and improves the user's experience.

[0184] The interval distance d between the end face of the partition plate 1112c close to the air outlet 1112a and the air outlet 1112a is studied. The atomizer 11 with a shunt structure is tested, and the test conditions are: the diameter of the air outlet channel 1112 close to the atomizing core 113 before shunting is 2.5mm, the interval between the air outlet channel inlet and the air outlet 1112a is 32.9mm, the initial temperature of the S-shaped heating layer 1134 on the atomizing core 113 is 250℃, and the atomization amount is 3s / 9mg. The test results are shown in Figure 45 and Figure 46 , the relationship curve between the highest temperature of the aerosol at the air outlet and the interval distance d is shown in Figure 45 , and the relationship curve between the aerosol temperature at the center position A of the air outlet and the interval distance d is shown in Figure 46 It can be understood that Figure 45 the highest temperature of the aerosol at the air outlet 1112a in

[0185] Analysis of Figure 45 shows that the size of the interval distance d between the end face of the partition plate 1112c close to the air outlet 1112a and the air outlet 1112a has little effect on the highest temperature of the aerosol at the air outlet 1112a. Analysis of Figure 46Analysis shows that when the distance d between the end face of the partition 1112c close to the air outlet 1112a and the air outlet 1112a is greater than 3 mm, the aerosol temperature at the center position A of the air outlet 1112a no longer has a relatively large change, indicating that when the distance d is equal to 3 mm, the mixing of the aerosol is already relatively sufficient, and further increasing the distance d has a very limited effect on the aerosol temperature distribution at the air outlet 1112a. Therefore, the range of d is preferably 0 mm < d ≤ 3 mm, and more preferably 0 mm < d ≤ 2.5 mm.

[0186] wherein it is found that Figure 46 The experimental data of the atomizer 11 have a distance h of 0.4 mm between the atomizing surface of the atomizing core 113 and the air inlet hole 1125a in addition to the air outlet channel 1112 having a flow splitting structure.

[0187] It can be understood that, under the premise of reducing the aerosol temperature at the air outlet 1112a by causing the air outlet channel 1112 to first split into multiple sub-air outlet channels 1112b at the end away from the atomizing core 113 and then converge together, the distance h between the atomizing surface of the atomizing core 113 and the air inlet hole 1125a is set as described above (the distance h between the atomizing surface of the atomizing core 113 and the air inlet hole 1125a in the first embodiment of the atomizer 11) to reduce the aerosol temperature at the air outlet 1112a is optional, and the setting of the cooling structure 119 (the cooling structure 119 in the second embodiment of the atomizer 11) in the air outlet channel 1112 to reduce the aerosol temperature at the air outlet 1112a is also optional. The three implementation manners described above for reducing the aerosol temperature at the air outlet 1112a can be arbitrarily combined as needed, so that the aerosol temperature range of the air outlet 1112a of the atomizer 11 can be 55°C-85°C, and optionally, the aerosol temperature range of the air outlet 1112a of the atomizer 11 can be 70°C-80°C.

[0188] The above is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the contents of the specification and drawings of the present application, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An atomizer characterized by, The shell has an air outlet channel. The mounting seat has an atomization cavity inside. The atomization core is arranged in the atomization cavity. The mounting seat has an air inlet hole for communicating with the outside atmosphere and the atomization cavity, so that the outside atmosphere can flow into the atomization cavity through the air inlet hole. The distance h between the atomization surface and the air inlet hole is in the range of 0mm 2. The atomizer of claim 1, wherein, The distance h is in the range of 0.2mm 3. The atomizer of claim 1, wherein, The shell has a mounting cavity. The mounting seat has a top wall and a side wall connected to each other, and the top wall and the side wall form the atomization cavity. The side wall of the mounting seat and the side wall of the mounting cavity form an air guide channel.

4. The atomizer of claim 1, wherein, The mounting seat has an air inlet hole for communicating with the outside atmosphere and the atomization cavity, so that the outside atmosphere can flow into the atomization cavity through the air inlet hole.

5. The atomizer of claim 3, wherein, The distance h between the atomization surface and the air inlet hole is in the range of 0mm The distance h is in the range of 0.2mm 6. The atomizer of claim 5, wherein, The shell has a mounting cavity.

7. The atomizer of claim 5, wherein, The mounting seat has a top wall and a side wall connected to each other, and the top wall and the side wall form the atomization cavity.

8. The atomizer of claim 5, wherein, The side wall of the mounting seat and the side wall of the mounting cavity form an air guide channel.

9. The atomizer of claim 8, wherein, The mounting seat has an air inlet hole for communicating with the outside atmosphere and the atomization cavity, so that the outside atmosphere can flow into the atomization cavity through the air inlet hole.

10. The atomizer of claim 8, wherein, The distance h between the atomization surface and the air inlet hole is in the range of 0mm The distance h is in the range of 0.2mm The shell has a mounting cavity. The mounting seat has a top wall and a side wall connected to each other, and the top wall and the side wall form the atomization cavity. The side wall of the mounting seat and the side wall of the mounting cavity form an air guide channel. The mounting seat has an air inlet hole for communicating with the outside atmosphere and the atomization cavity, so that the outside atmosphere can flow into the atomization cavity through the air inlet hole. The distance h between the atomization surface and the air inlet hole is in the range of 0mm The distance h is in the range of 0.2mm The shell has a mounting cavity. The mounting seat has a top wall and a side wall connected to each other, and the top wall and the side wall form the atomization cavity. The side wall of the mounting seat and the side wall of the mounting cavity form an air guide channel. The mounting seat has an air inlet hole for communicating with the outside atmosphere and the atomization cavity, so that the outside atmosphere can flow into the atomization cavity through the air inlet hole. The distance h between the atomization surface and the air inlet hole is in the range of 0mm The distance h is in the range of 0.2mm The shell has a mounting cavity. The mounting seat has a top wall and a side wall connected to each other, and the top wall and the side wall form the atomization cavity. The side wall of the mounting seat and the side wall of the mounting cavity form an air guide channel. The mounting seat has an air inlet hole for communicating with the outside atmosphere and the atomization cavity, so that the outside atmosphere can flow into the atomization cavity through the air inlet hole. The distance h between the atomization surface and the air inlet hole is in the range of 0mm The distance h is in the range of 0.2mm The shell has a mounting cavity. The mounting seat has a top wall and a side wall connected to each other, and the top wall and the side wall form the atomization cavity. The side wall of the mounting seat and the side wall of the mounting cavity form an air guide channel. The mounting seat has an air inlet hole for communicating with the outside atmosphere and the atomization cavity, so that the outside atmosphere can flow into the atomization cavity through the air inlet hole. The distance h between the atomization surface and the air inlet hole is in the range of 0mm The distance h is in the range of 0.2mm The shell has a mounting cavity. The mounting seat has a top wall and a side wall connected to each other, and the top wall and the side wall form the atomization cavity. The side wall of the mounting seat and the side wall of the mounting cavity form an air guide channel. The mounting seat has an air inlet hole for communicating with the outside atmosphere and the atomization cavity, so that the outside atmosphere can flow into the atomization cavity through the air inlet hole. The distance h between the atomization surface and the air inlet hole is in the range of 0mm The distance h is in the range of 0.2mm 11. The atomizer of claim 10, wherein, The atomizer further comprises two electrode connectors, one end of each of the electrode connectors is electrically connected with one of the electrodes, and the other end is arranged on the bottom surface of the mounting base away from the support part.

12. The atomizer of claim 11, wherein, The bottom surface away from the support part has a second groove, and the second groove has a second opening near one side of the housing; the other end of each of the electrode connectors is arranged in the second groove through the second opening.

13. An electronic atomizing device, characterized by, An electronic cigarette comprises a battery assembly and an atomizer, the battery assembly is used to supply power to the atomizer, wherein the atomizer is the atomizer according to any one of claims 1-12.

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