CN116158557A - Nebulizers and Vaping Devices - Google Patents

Abstract

The invention discloses an atomizer and an electronic atomization device. The atomizer includes a housing, an installation seat and an atomizing core; the housing has an air outlet channel; the interior of the installation seat has an atomization cavity; the atomization core is arranged in the atomization cavity; the atomization core has an atomization surface, and the atomization The surface faces the air outlet of the mounting base, and the air outlet channel is connected to the air outlet of the mounting base; wherein, the mounting base is provided with an air inlet, which is used to communicate with the outside atmosphere and the atomization chamber, so that the outside atmosphere can pass through the air outlet. The air hole flows into the atomization chamber, and the atomization surface and the air inlet hole are separated by a certain distance h. The atomizer and electronic atomization device of the present application can reduce the temperature of the aerosol flowing out of the air outlet, and improve the user experience.

Description

Nebulizers and Vaping Devices

technical field

The invention relates to the technical field of electronic atomization devices, in particular to an atomizer and an electronic atomization device.

Background technique

An electronic atomization device is a device that can atomize an aerosol-generating substrate into an aerosol, and is widely used in daily life. The atomizing core in the electronic atomization device has an atomizing surface, and a heating layer is arranged on the atomizing surface. After the heating layer is energized, it can heat the aerosol generating substrate near the atomizing surface, so that the aerosol generating substrate is heated and atomized An aerosol is generated, and the aerosol flows out of the electronic atomization device through the air outlet for use by the user.

Usually, the atomizing surface of the atomizing core is set downward, that is, it is set towards the air inlet of the electronic atomizing device. In order to increase the amount of aerosol flowing out of the electronic atomization device, the atomizing surface of the atomizing core can also be set up, that is, facing the air outlet, so that the distance between the air outlet and the atomizing surface can be greatly shortened, and the flow of electrons can be improved. The amount of aerosol in the nebulizer. However, setting the atomizing side upward will increase the temperature of the aerosol flowing out from the air outlet, and the user experience will be deteriorated.

Contents of the invention

The atomizer and the electronic atomization device provided by the present invention solve the problems of high temperature of the aerosol flowing out of the air outlet and poor user experience when the atomization surface is set upward.

In order to solve the above technical problems, the first technical solution provided by this application is: provide an atomizer, the atomizer includes a housing, an installation base and an atomizing core; the housing has an air outlet channel; the inside of the installation base has The atomization chamber; the atomization core is set in the atomization chamber; the atomization core has an atomization surface, the atomization surface faces the air outlet hole of the mounting seat, and the air outlet channel is connected to the air outlet hole of the mounting seat; wherein, the mounting seat is provided with an inlet The air hole, the air intake hole is used to communicate with the outside atmosphere and the atomization chamber, so that the outside air can flow into the atomization chamber through the air inlet hole, and there is a certain distance h between the atomization surface and the air inlet hole.

Wherein, the range of h is 0mm<h≤0.7mm.

Wherein, the range of h is 0.2mm≤h≤0.5mm.

Wherein, there is an installation cavity in the shell; the installation seat is arranged in the installation cavity; the installation seat has a top wall and a side wall connected to each other, and the top wall and the side wall are surrounded to form an atomization chamber; the side wall of the installation seat and the installation cavity The side walls cooperate to form an air guiding channel; the side of the atomizing core close to the top wall has an atomizing surface; wherein, the side wall of the mounting seat is provided with an air inlet to communicate with the atomizing chamber through the air guiding channel.

Wherein, there is a liquid storage chamber in the housing, and the liquid storage chamber is used to store the aerosol generating matrix; there is a liquid guide channel in the mounting seat, and the liquid guide channel is connected with the liquid storage chamber, and the liquid guide channel is used to transfer the gas in the liquid storage chamber The sol generating matrix is guided to the side wall of the atomization core and/or the side of the atomization core away from the air outlet.

Wherein, the installation seat includes an installation top cover and an installation base; the installation top cover is sleeved on the installation base;

The outer surface of the side wall where the top cover is installed is provided with an air guiding groove, the side wall of the installation cavity cooperates with the bottom wall of the air guiding groove to form an air guiding channel, and the side of the air guiding groove close to the top wall where the top cover is installed is provided with an air inlet hole; the installation base has an air inlet, and the end of the air guide channel away from the air inlet is connected with the air inlet.

Wherein, the width of the air inlet hole is equal to the width of the air guide groove.

Wherein, one end of the air guide groove is a closed end, which is arranged close to the top wall of the installation top cover, and the other end of the air guide groove is an open end, which extends to the bottom surface of the installation top cover.

Wherein, the installation base includes a bottom and a support part, the installation top cover is sleeved on the support part and abuts against the bottom, and the atomizing core is arranged on a side of the support part close to the top wall of the installation top cover.

Wherein, there are two air guide grooves, which are respectively arranged on the outer surfaces of the two opposite side walls of the installation top cover; the side of the bottom away from the support part has a first groove as an air inlet, and the first groove is close to the two sides. There are two first openings at both ends of each air guiding groove, and the two first openings communicate with the ends of the two air guiding grooves near the bottom respectively.

Wherein, the atomizing core includes a base body, a heating layer and two electrodes, the base body is set on the side of the support part close to the top wall where the top cover is installed, the surface of the base body close to the top wall is the atomizing surface, the heating layer and the two electrodes are set on the On the atomizing surface, two electrodes are respectively connected to opposite ends of the heating layer.

Wherein, the atomizer further includes two electrode connectors, one end of each electrode connector is electrically connected to an electrode, and the other end is arranged on the surface of the bottom of the installation base away from the supporting part.

Wherein, the surface of the bottom away from the support part has a second groove, and the side of the second groove close to the housing has a second opening; the other end of each electrode connector is arranged in the second groove through the second opening Inside.

In order to solve the above technical problems, the second technical solution provided by this application is: provide an electronic atomization device, including a battery assembly and an atomizer, the battery assembly is used to power the atomizer, wherein the atomizer is the above-mentioned Any of the nebulizers involved.

In the atomizer and electronic atomization device provided by the present invention, the atomizer connects the outside atmosphere with the atomization chamber by opening an air inlet hole on the mounting base, so that the outside air can flow into the atomization chamber through the air inlet hole , and carry the aerosol generated in the atomization chamber out of the atomizer for the user to use. At the same time, the cold air flowing into the atomization chamber will conduct thermal convection with the hot aerosol generated on the atomization surface, and the atomization can be increased by making a certain distance h between the atomization surface of the atomization core and the air inlet hole. The vortex area near the surface reduces the thermal convection between the cold air and the hot aerosol, so that the temperature of the airflow after the mixing of the cold air and the aerosol is reduced, and the temperature of the aerosol flowing out of the air outlet of the nebulizer is reduced, increasing the temperature of the aerosol. user experience.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

Fig. 1 is a block diagram of a functional module of the electronic atomization device provided by the present application;

Fig. 2 is a schematic diagram of a three-dimensional structure of the first embodiment of the atomizer provided by the present application;

Fig. 3 is a schematic diagram of the explosion structure of the atomizer in Fig. 2;

Fig. 4 is a cross-sectional view of the atomizer in Fig. 2 along the direction A-A;

Fig. 5 is a three-dimensional structural schematic diagram of an angle of installing the top cover in Fig. 3;

Fig. 6 is a three-dimensional structural schematic diagram of another angle of installing the top cover in Fig. 3;

Fig. 7 is a schematic diagram of a three-dimensional structure of the atomization core in Fig. 3;

Fig. 8 is a cross-sectional view of the assembly seat and atomizing core in Fig. 3;

Fig. 9 is a partial sectional view of the atomizer in Fig. 2 along the B-B direction;

Fig. 10 is another cross-sectional view of the assembled seat and atomizing core in Fig. 3;

Fig. 11 is a local flow velocity diagram of the gas in the atomizer of Fig. 2;

Figure 12 is a diagram of the local temperature distribution in the atomizer of Figure 2;

Fig. 13 is the curve diagram of the temperature of the aerosol of spacing-air outlet provided by the present application;

Fig. 14 is the curve diagram of the aerosol amount of the spacing-air outlet provided by the present application;

Fig. 15 is a histogram of spacing-aerosol amount and temperature at the air outlet provided by the present application;

Fig. 16 is a schematic diagram of an exploded structure of installing the top cover, the atomizing core, the second seal, the third seal and the installation base in Fig. 3;

Fig. 17 is a schematic diagram of the exploded structure of the mounting seat and the end cover in Fig. 3;

Fig. 18 is a schematic diagram of another explosion structure in which the top cover, the atomizing core, the second seal, the third seal and the installation base are installed in Fig. 3;

Fig. 19 is a partial structural schematic diagram of the second embodiment of the atomizer provided by the present application;

Fig. 20 is the structural representation of the first experimental piece;

Fig. 21 is the structural representation of the second experimental piece;

Fig. 22 is the airflow temperature distribution diagram at the outlet of the first experimental piece;

Fig. 23 is the air flow temperature distribution diagram at the outlet of the second experimental piece;

Figure 24 is a schematic diagram of the change law of the local surface heat transfer coefficient corresponding to different boundary layer forms;

Fig. 25 is a schematic diagram of the flow path of the airflow in the outlet channel of Fig. 19;

Fig. 26 is a distribution diagram of the velocity field in the outlet channel of the existing atomizer;

Fig. 27 is a distribution diagram of the velocity field in the air outlet channel in the second embodiment of the atomizer provided by the present application;

Fig. 28 is a schematic diagram of the structure in which the raised section in Fig. 19 is a square;

Fig. 29 is a structural schematic diagram of a protrusion with a circular cross-section in another embodiment;

Fig. 30 is a chart showing the variation law of the suction resistance with the height of the protrusion calculated for different outlet channel lengths;

Figure 31 is a temperature distribution diagram of the air outlet corresponding to different protrusion heights;

Fig. 32 is a schematic diagram for calculation of a flow field with a raised cross-section being a square;

Fig. 33 is a graph showing the variation law of the heat transfer coefficient of different heights of square cross-section bulges;

Fig. 34 is the distribution diagram of the velocity field corresponding to different P/H values of the bulge in the positive direction section;

Fig. 35 is a graph showing the change law of the heat transfer coefficient with different P/H values of the cross-sectional protrusions in the positive direction;

Fig. 36 is a schematic diagram for calculation of a flow field with a convex cross-section being circular;

Fig. 37 is a graph showing the variation law of heat transfer coefficients of different heights of circular cross-section bulges;

Fig. 38 is a distribution diagram of the velocity field corresponding to different P/H values of circular cross-section bulges;

Fig. 39 is a graph showing the variation law of the heat transfer coefficient with different P/H values of circular cross-section protrusions;

Fig. 40 is a partial structural schematic diagram of the third embodiment of the atomizer provided by the present application;

Fig. 41 is a schematic diagram of a partial structure of an existing atomizer;

Fig. 42 is a cloud diagram of the aerosol temperature distribution at the air outlet of the atomizer provided in Fig. 41;

Figure 43 is a cloud diagram of the aerosol temperature distribution at the air outlet of the atomizer provided in Figure 40;

Figure 44 is a flow velocity vector distribution diagram on several surfaces of the air outlet channel of the atomizer provided in Figure 40 near the air outlet;

Figure 45 is a graph of the relationship between the maximum temperature of the aerosol at the air outlet and the separation distance d;

Fig. 46 is a graph showing the relationship between the aerosol temperature at the center position A of the air outlet and the separation distance d.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

In the following description, for purposes of illustration rather than limitation, specific details, such as specific system architectures, interfaces, and techniques, are set forth in order to provide a thorough understanding of the present application.

The terms "first", "second", and "third" in this application are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, features defined as "first", "second" and "third" may explicitly or implicitly include at least one of said features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined. All directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship between the various components in a certain posture (as shown in the drawings) , sports conditions, etc., if the specific posture changes, the directional indication also changes accordingly. The terms "comprising" and "having" 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 comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps or components inherent in those processes, methods, products, or devices.

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 present application. The appearances of a phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments.

The application will be described in detail below in conjunction with the accompanying drawings and embodiments.

Please refer to FIG. 1 . FIG. 1 is a schematic diagram of a functional module of the electronic atomization device provided in this application. In this embodiment, an electronic atomization device is provided. The electronic atomization device can be used for atomization of aerosol-generating substrates. The electronic atomization device includes an atomizer 11 and a battery assembly 12 electrically connected to each other.

Wherein, the atomizer 11 is used for storing the aerosol-generating substrate and atomizing the aerosol-generating substrate to form an aerosol that can be inhaled by the user. The atomizer 11 can be used in different fields, such as medical treatment, beauty care, 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 generate aerosol, for the sucker to inhale, the following embodiments are all taken as an example; of course, in other embodiments, the atomizer 11 can also be applied to hairspray equipment, to be used for hair styling by atomization hairspray; or equipment for the treatment of upper and lower respiratory diseases to aerosolize medical drugs.

For the specific structure and function of the atomizer 11 , please refer to the specific structure and function of the atomizer 11 involved in any of the following embodiments, and can achieve the same or similar technical effects, and will not be repeated here.

The battery pack 12 includes a battery (not shown) and a controller (not shown). The battery is used to supply power to 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 operation of the atomizer 11. The battery assembly 12 also includes other components such as a battery holder airflow sensor.

The atomizer 11 and the battery assembly 12 can be integrated or detachably connected, and can be designed according to specific needs.

Please refer to Fig. 2, Fig. 3 and Fig. 4, Fig. 2 is a schematic three-dimensional structural diagram of the first embodiment of the atomizer provided in this embodiment, Fig. 3 is a schematic diagram of the exploded structure of the atomizer in Fig. 2, and Fig. 4 is The sectional view of the atomizer along the A-A direction in Fig. 2 .

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

Wherein, a liquid storage cavity 1111 , an air outlet channel 1112 and an installation cavity 1113 are formed in the housing 111 , and the liquid storage cavity 1111 and the air outlet channel 1112 communicate with the installation cavity 1113 respectively.

The liquid storage chamber 1111 is used to store the aerosol-generating substrate, and the housing 111 can be made of metal such as aluminum, stainless steel, or plastic, as long as it can store the aerosol-generating substrate and does not react with the aerosol-generating substrate. Can. The shape, size and position of the liquid storage cavity 1111 are not limited, and can be designed according to needs. In this embodiment, the liquid storage chamber 1111 and the air outlet channel 1112 are arranged side by side on the same side of the installation chamber 1113 , and the liquid storage chamber 1111 is arranged around the air outlet channel 1112 .

The installation seat 112 is disposed in the installation cavity 1113 . The installation base 112 has an atomizing cavity 1123 inside, and the atomizing core 113 is disposed in the atomizing cavity 1123 . Specifically, in this embodiment, the installation seat 112 further includes an installation top cover 1121 and an installation base 1122 , and the installation top cover 1121 is sleeved on a side of the installation base 1122 close to the liquid storage cavity 1111 . Please refer to FIG. 5 and FIG. 6 , FIG. 5 is a schematic perspective view of the top cover in FIG. 3 at one angle, and FIG. 6 is a schematic perspective view of the top cover in FIG. 3 at another angle. Wherein, 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 may be an annular side wall, and is arranged on the side of the top wall 1121a of the installation top cover 1121 away from the liquid storage chamber 1111 . The top wall 1121a and the side wall 1121b of the top cover 1121 can be integrally formed. The top wall 1121 a of the top cover 1121 and the side wall 1121 b of the top cover 1121 are surrounded to form an atomization chamber 1123 . In other embodiments, it is also possible to install the top cover 1121 and the installation base 1122 to cooperate to form the atomization chamber 1123 , and the manner in which the installation base 112 forms the atomization chamber 1123 is not limited to the manner mentioned in this application.

Referring to Fig. 3 and Fig. 4, there is an air outlet 1121c on the top wall 1121a of the top cover 1121, one end of the air outlet 1121c communicates with the atomization chamber 1123, and the other end of the air outlet 1121c communicates with the air outlet channel 1112, so that the atomization The cavity 1123 communicates with the gas outlet channel 1112 . The aerosol atomized by the atomizing core 113 is mixed with the cold air and flows into the air outlet channel 1112 . Further, the end of the air outlet passage 1112 away from the installation cavity 1113 has an air outlet 1112a, that is, the port at one end of the air outlet passage 1112 is the air outlet 1112a, and the air outlet passage 1112 communicates with the outside atmosphere through the air outlet 1112a, so that the air in the air outlet passage 1112 The aerosol can flow out of the nebulizer 11 for the user to use.

Please refer to Figure 7, Figure 7 is a schematic diagram of a three-dimensional structure of the atomization core in Figure 3;

Wherein, the atomizing core 113 includes a base body 1133 , a heating layer 1134 and two electrodes 1135 . The base 1133 has an atomizing surface 1131 on the side close to the liquid storage chamber 1111 , that is, the atomizing core 113 has an atomizing surface; the heating layer 1134 and two electrodes 1135 are disposed on the atomizing surface 1131 . Substrate 1133 can store and direct the aerosol-generating substrate. The material of the substrate 1133 can be a porous material, such as porous ceramics. The porous ceramics can use the capillary force to guide the aerosol-generating substrate to the heat-generating layer 1134, and the heat-generating layer 1134 can heat and atomize it 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 according to needs. The two electrodes 1135 are arranged at both ends of the heating layer 1134, and the two electrodes 1135 can be electrically connected to the battery assembly 12 through the connector, so that after the two electrodes 1135 are energized, the heating layer 1134 between the two electrodes 1135 is energized to heat the gas. The sol produces a matrix.

In this embodiment, the atomizing surface of the atomizing core 113 faces the air outlet hole 1121c of the mounting base 112 , that is, the atomizing surface is set upward.

Please refer to FIG. 3 and FIG. 4 , the atomizer 11 further includes a first seal 115 , a second seal 116 and a third seal 117 . The first sealing member 115 is disposed at one end of the installation top cover 1121 close to the liquid storage cavity 1111 to realize the sealing between the installation top cover 1121 and the housing 111 . The second sealing member 116 is sleeved on the atomizing core 113 to realize the sealing between the atomizing core 113 and the installation top cover 1121 . The third seal 117 is disposed between the installation base 1122 and the atomizing core 113 to realize the sealing between the atomizing core 113 and the installation base 1122 and the sealing between the installation top cover 1121 and the installation base 1122 . The material of the first sealing member 115 , the second sealing member 116 and the third sealing member 117 can be any sealing material that has certain flexibility and can withstand a certain temperature. In this embodiment, the first sealing member 115 , the second sealing member 116 and the third sealing member 117 are made of silica gel. 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 according to requirements.

Please refer to Fig. 5 and Fig. 8, Fig. 8 is a cross-sectional view of the mounting base and the atomizing core in Fig. 3 after assembly.

Wherein, the top wall 1121a on which the top cover 1121 is installed is also provided with a lower liquid hole 1121d, one end of the lower liquid hole 1121d communicates with the liquid storage chamber 1111, and the other end of the lower liquid hole 1121d communicates with the atomization chamber 1123, so that the liquid storage The aerosol-generating substrate in the cavity 1111 can flow into the atomizing cavity 1123 through the lower liquid hole 1121d. The number of the lower liquid holes 1121d can be one or more. In this embodiment, the number of the lower liquid holes 1121d is two, and they are arranged symmetrically on opposite sides of the air outlet holes 1121c.

In this embodiment, the mounting base 112 has a liquid guiding channel 1124 therein. Specifically, the liquid guide channel 1124 can be formed in the installation top cover 1121, for example, the side wall 1121b of the installation top cover 1121 can form the liquid guide channel 1124, or the second sealing member 116 and the third sealing member 117 can be connected with the installation top cover The side wall 1121b of 1121 cooperates to form a liquid guiding channel 1124, and the liquid guiding channel 1124 communicates with the lower liquid hole 1121d, so that the liquid guiding channel 1124 communicates with the liquid storage chamber 1111. The liquid guiding channel 1124 can guide the aerosol-generating substrate in the liquid storage chamber 1111 to the side wall of the atomizing core 113 and/or the side of the atomizing core 113 away from the air outlet hole 1121c. In this embodiment, the liquid guiding channel 1124 guides the aerosol-generating substrate to the side of the atomizing core 113 away from the air outlet hole 1121c. Specifically, one end of the third sealing member 117 close to the atomizing core 113 is provided with a liquid guiding groove 1171 , and the liquid guiding groove 1171 communicates with the liquid guiding channel 1124 . The liquid guiding groove 1171 can guide the aerosol generating substrate in the liquid guiding channel 1124 to the side of the atomizing core 113 away from the top wall 1121a where the top cover 1121 is installed, so that the atomizing core 113 can heat the atomized aerosol generating substrate to generate aerosol. In other embodiments, the second sealing member 116 may also be provided with a liquid guiding groove 1171 to guide the aerosol-generating substrate in the liquid guiding channel 1124 to the side wall of the atomizing core 113 . By setting the liquid guiding channel 1124 and the liquid guiding groove 1171, the aerosol-generating substrate in the liquid storage chamber 1111 can flow to the side of the atomizing core 113 or the side opposite to the atomizing surface 1131, so that the atomizing core 113 can Absorb the aerosol-generating substrate and guide the aerosol-generating substrate to the atomizing surface 1131 to be heated to form an aerosol.

Please refer to FIG. 9 . FIG. 9 is a partial cross-sectional view of the atomizer in FIG. 2 along the direction B-B. The arrows in FIG. 9 indicate the airflow path in the atomizer 11 .

In one embodiment, the side wall 1121b of the installation seat 112 cooperates with the side wall 1113a of the installation cavity 1113 to form the air guide channel 1125 . One end of the air guide channel 1125 communicates with the air inlet 1122a of the atomizer 11, so that the outside atmosphere can enter the air guide channel 1125 through the air inlet 1122a of the atomizer 11; the other end of the air guide channel 1125 is connected with the atomizer The cavity 1123 communicates so that the airflow in the air guiding channel 1125 can enter the atomizing cavity 1123 .

Further, the mounting base 112 is provided with an air inlet 1125a, which may be provided on the side wall 1121b of the mounting top cover 1121. One end of the air inlet 1125a is connected to the air guide channel 1125, and the other end is connected to the atomization chamber 1123 communicates, so that the airflow in the air guide channel 1125 enters the atomization chamber 1123 through the air inlet hole 1125a. The air inlet 1125a can be arranged on the side of the atomizing surface 1131 facing the air outlet 1121c. The aerosol generated by the atomizing surface 1131 carrying the atomizing core 113 flows through the air outlet hole 1121c to the air outlet channel 1112, and finally flows out of the atomizer 11 from the air outlet 1112a for use by the user.

Specifically, please refer to FIG. 5 and FIG. 10 , FIG. 10 is another cross-sectional view of the assembly seat and atomizing core in FIG. 3 .

In this embodiment, the outer surface of the side wall 1121b of the installation top cover 1121 is provided with an air guide groove 1121e, and the side wall 1113a of the installation cavity 1113 cooperates with the bottom wall of the air guide groove 1121e to form an air guide channel 1125, and the air guide channel 1125 is close to One side of the top wall 1121a on which the top cover 1121 is installed is provided with an air inlet 1125a. In other embodiments, the side wall 1113a of the installation cavity 1113 may also be provided with an air guiding groove 1121e, and the side wall 1121b of the mounting seat 112 cooperates with the bottom wall of the air guiding groove 1121e to form an air guiding channel 1125 . The way of forming the air guiding channel 1125 is not limited to the above-mentioned ways.

In one embodiment, please refer to FIG. 5 and FIG. 6 , one end of the air guide groove 1121e is a closed end, which is arranged near the top wall 1121a of the top cover 1121; the other end of the air guide groove 1121e is an open end, extending to The bottom surface 1121f of the top cover 1121 is attached. The shape of the air guide groove 1121e may be a rectangle as in this embodiment, or other shapes. The number of air guide grooves 1121e can be one or more. In this embodiment, there are two air guiding grooves 1121e, which are respectively disposed on the outer surfaces of the two opposite side walls 1121b of the installation top cover 1121 . The two air guide grooves 1121 e respectively form two air guide channels 1125 with the side wall 1113 a of the installation cavity 1113 , and the two air guide channels 1125 communicate with the air outlet 1112 a of the atomizer 11 . Each air guiding groove 1121e of the two air guiding grooves 1121e is provided with an air inlet 1125a at one end close to the top wall 1121a where the top cover 1121 is installed. The airflow entering the atomizer 11 from the air outlet 1112 a flows into the atomization chamber 1123 through two air guiding channels 1125 .

In this embodiment, the bottom surface 1121g of the air guide groove 1121e near the top wall 1121a of the top cover 1121 is inclined toward the inside of the top cover 1121, and the air inlet 1122a is arranged on the top of the air guide groove 1121e near the top cover 1121. The end of the wall 1121a. The depth of the air guide groove 1121e increases near the end of the top wall 1121a where the top cover 1121 is installed, and the closer to the top wall 1121a where the top cover 1121 is installed, the greater the depth of the air guide groove 1121e, so that the air flow of the air guide channel 1125 is easier The air is guided from the air guide channel 1125 to the air outlet hole 1121c. In other embodiments, it is also possible that the entire bottom surface 1121g of the air guide groove 1121e is inclined toward the inside of the installation top cover 1121 .

The width of the air inlet hole 1125a may be smaller than the width of the air guiding groove 1121e, or may be equal to the width of the air guiding groove 1121e. In this embodiment, the width of the air inlet hole 1125a is equal to the width of the air guide groove 1121e. The wider the width of the air inlet hole 1125a, the greater the air flow that can pass through the air inlet hole 1125a, which is beneficial to increase the amount of aerosol flowing out from the air outlet 1112a.

As shown in FIG. 10 , there is a distance between the air inlet 1125 a and the atomizing surface 1131 of the atomizing core 113 . Specifically, there is a distance between the atomizing surface 1131 and the bottom surface 1125b of the air inlet 1125a close to the atomizing surface 1131, and the distance of the distance is h.

Please refer to FIG. 11 . FIG. 11 is a partial flow velocity diagram of the gas in the atomizer in FIG. 2 , specifically, the partial flow velocity diagram at the atomization chamber 1123 shown in FIG. 11 . The aerosol generated by the atomizing surface 1131 will form a vortex area near the atomizing surface 1131 , wherein the vortex area is an area surrounded by a dotted line frame. The cold air flowing into the atomizing chamber 1123 from the air guide channel 1125 will conduct thermal convection with the hot aerosol generated on the atomizing surface 1131 .

It can be seen from Fig. 11 that when h=0, that is, when there is no distance 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, and the cold air and hot air The thermal convection between the aerosols is relatively large, the temperature of the airflow after the cold air is mixed with the aerosol is relatively high, and the temperature of the aerosol flowing out of the air outlet 1112a of the atomizer 11 is relatively high, resulting in poor user experience.

It can also be seen from Fig. 11 that when h>0, that is, when there is a distance between the air inlet 1125a and the atomizing surface 1131 of the atomizing core 113, compared with the structure of h=0, the area near the atomizing surface 1131 The swirl area increases, and the larger the value of h, that is, the larger the distance, the larger the swirl area near the atomizing surface 1131 . Therefore, by setting a distance between the air inlet 1125a and the atomizing surface 1131 of the atomizing core 113, the increase of the vortex area near the atomizing surface 1131 reduces the heat convection between the cold air and the hot aerosol, thereby The temperature of the airflow after the cold air is mixed with the aerosol is reduced, and the temperature of the aerosol flowing out of the air outlet 1112a of the nebulizer 11 is reduced, which improves the user experience.

Further please refer to FIG. 12 . FIG. 12 is a diagram of the local temperature distribution in the atomizer of FIG. 2 , specifically, the diagram of the local temperature at the atomization chamber 1123 shown in FIG. 12 . As can be seen from Figure 12, when h=0, the vortex area is smaller, and the temperature of the aerosol convected with the cold air is higher, so that the temperature of the airflow after the cold air is mixed with the aerosol is higher, and the flow out of the atomizer 11 The temperature of the aerosol at the air outlet 1112a is relatively high, resulting in poor user experience. When h>0, the vortex area near the atomization surface 1131 increases, compared with h=0, the temperature of the aerosol convected with the cold air decreases, and the larger the value of h, the larger the eddy area, The cooler the aerosol is, the cooler it is. Therefore, by setting a distance between the air inlet 1125a and the atomizing surface 1131 of the atomizing core 113, the temperature of the airflow after the cold air is mixed with the aerosol can be reduced, and the temperature of the aerosol flowing out of the air outlet 1112a of the atomizer 11 can be reduced. The temperature is reduced, thereby improving the user experience.

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 convective with the cold air is too little, which will make the aerosol flow out of the air outlet 1112a of the nebulizer 11 The amount is too small.

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 2.5mm, the length is 29.4mm, the initial temperature of the S-shaped heating layer 1134 on the atomization core 113 is 250°, the atomization The amount is 3s/9mg, and the input power of the battery assembly 12 to the atomizing core 113 is 6.5W. Of course, we can also use other atomizers 11 with different parameters, but we can still use the experimental results to draw a curve diagram of distance-aerosol smoke volume at the air outlet with a similar mathematical relationship.

You can refer to Table 1, Figure 13 and Figure 14. Table 1 shows when h is 0mm, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, and 0.7mm respectively, the gas outlet 1112a flowing out of the atomizer 11 The experimental results of the temperature of the aerosol and the amount of the aerosol; Fig. 13 is the temperature curve of the distance-outlet 1112a drawn according to the experimental results of Table 1, and Fig. 14 is the distance-out according to the experimental results of Table 1 drawn A graph of the amount of aerosol at the air port.

Table 1

It can be seen from the experimental results that when h=0, the amount of aerosol flowing out of the air outlet 1112a of the nebulizer 11 is relatively large, but the temperature of the aerosol at the air outlet 1112a of the nebulizer 11 is relatively high, resulting in a user experience poor. When h>0, the temperature of the aerosol flowing out of the gas outlet 1112a of the atomizer 11 decreases, and the larger h is, the temperature of the aerosol flowing out of the gas outlet 1112a of the atomizer 11 decreases obviously, but the temperature of the aerosol flowing out of the atomizer 11 The amount of aerosol at the air outlet 1112a of is decreasing with the increase of h. When h=0.7, the amount of aerosol flowing out of the gas outlet 1112a of the atomizer 11 is reduced to 7.19 mg/puff.

Therefore, a certain distance h can be set between the atomizing surface 1131 and the air inlet 1125a. For example, for the atomizer used in the above experiment, the range corresponding to h is 0mm<h≤0.7mm. The value of h can be 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm and so on. Preferably, 0.2mm≤h≤0.5mm. By setting the distance h between the atomizing surface 1131 and the air inlet 1125a so that the temperature of the aerosol at the air outlet 1112a is reduced, the distance between the atomizing surface 1131 and the air inlet 1125a is close to the bottom surface 1125b of the atomizing surface 1131 The spacing is 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 while ensuring that the amount of smoke of the aerosol flowing out of the air outlet 1112a of the atomizer 11 will not be too small, which is beneficial Improve user experience.

In this embodiment, the inventor also tried to reduce the temperature of the aerosol at the air outlet 1112a by increasing the length of the air outlet channel 1112. Experiments showed that: when the length of the air outlet channel 1112 was 29.4 mm, the temperature of the aerosol at the air outlet 1112a is 93.16°; when the length of the air outlet channel 1112 increases by 13mm to 42.4mm, the temperature of the aerosol at the air outlet 1112a is 87°. Although the temperature has decreased by 6.17°, the length of the air outlet channel 1112 has increased by more than 50%, which is unacceptable for product design. Therefore, the technical solution of setting a certain distance h between the atomizing surface 1131 and the air inlet hole 1125a has Significant performance and effectiveness improvements. Reference can be made to FIG. 15 , which is a histogram of the experimental results of the temperature and amount of aerosol flowing out of the air outlet 1112a of the nebulizer 11 when h is 0mm and 0.4mm respectively. As can be seen from Figure 15, when h=0mm, the aerosol temperature of the air outlet 1112a is 102.7°C, and the aerosol amount of the air outlet 1112a is 7.54mg/puff; when h=0.4mm, the aerosol temperature of the air outlet 1112a 86.4°C, the amount of aerosol at the air outlet 1112a is 7.33mg/puff; when h=0.4mm, the temperature of the aerosol flowing out of the air outlet 1112a of the nebulizer 11 is greatly reduced, and the aerosol flowing out of the air outlet of the nebulizer 11 The amount of aerosol of 1112a will not be too small.

In one embodiment, as shown in FIG. 16 , FIG. 16 is a schematic diagram of an exploded structure of installing the top cover, the atomizing core, the second seal, the third seal and the installation base in FIG. 3 .

Wherein, the installation base 1122 includes a bottom 1122b and a support part 1122c, the installation top cover 1121 is sleeved on the support part 1122c and abuts against the bottom 1122b, the support part 1122c is set in the atomization cavity 1123, and the atomization core 113 is set in the support part 1122c is close to the side of the top wall where the top cover 1121 is installed. By adjusting the height of the supporting portion 1122c, the position of the atomizing core 113 can be adjusted, and further the distance h between the air inlet 1125a and the atomizing surface 1131 of the atomizing core 113 can be adjusted.

In one embodiment, as shown in FIG. 2 and FIG. 17 , FIG. 17 is a schematic diagram of the exploded structure of the mounting seat and the end cover in FIG. 3 .

Wherein, the end cover 114 covers the end of the housing 111 away from the air outlet 1112a, for example, the end cover 114 can be sleeved on the end of the housing 111 away from the air outlet 1112a, and the housing 111 and the end cover 114 are detachably connected.

Further, the side of the installation base 1122 facing away from the installation top cover 1121 has an air inlet 1122a, and the end cover 114 is provided with a through hole 1141, the through hole 1141 communicates with the external atmosphere, and the air inlet 1122a communicates with the through hole 1141, so as to The outside atmosphere is allowed to enter the air inlet 1122a.

In this embodiment, the bottom 1122b of the mounting base 1122 has a first groove 1122d on a side facing away from the supporting portion 1122c, and the first groove 1122d serves as the air inlet 1125a and communicates with the through hole 1141 . An end of the first groove 1122d close to the air guiding groove 1121e has a first opening 1122e penetrating through the bottom 1122b of the mounting base 1122 . The first opening 1122e may be a through hole or a notch at the edge of the bottom 1122b. The first opening 1122e communicates the first groove 1122d with the end of the air guide groove 1121e near the bottom 1122b, so that air can flow from the first groove 1122d into the air guide groove 1121e.

The number of the first openings 1122e may be the same as the number of the air guiding grooves 1121e. In this embodiment, the number of 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 respectively connect the first groove 1122d with the two The air guiding groove 1121e is connected.

In one embodiment, as shown in FIG. 17 and FIG. 18 , FIG. 18 is a schematic diagram of another exploded structure for installing the top cover, the atomizing core, the second seal, the third seal and the installation base in FIG. 3 .

Wherein, the atomizer 11 also includes two electrode connectors 118, one end of each electrode connector 118 is electrically connected to an electrode 1135; The through hole 1141 of the cover 114 is exposed, so that the electrode connector 118 can be electrically connected with the battery assembly 12 , so that the battery assembly 12 can supply power to the atomizing core 113 . In one embodiment, the two electrode connectors 118 are respectively disposed on both sides of the atomizing core 113 , and are disposed corresponding to the positions of the electrodes 1135 . That is, the two electrode connectors 118 are arranged symmetrically about the center of rotation.

Further, two second grooves 1122f are provided on the surface of the bottom 1122b facing away from the supporting portion 1122c, which are respectively used for accommodating the ends of the two electrode connecting parts 118 away from the atomizing core 113 . Specifically, the second groove 1122f has a second opening 1122g on the side close to the housing 111, and the second opening 1122g may be a gap provided on the edge of the bottom 1122b. The corresponding second openings 1122g are disposed in the corresponding second grooves 1122f. The arrangement of the electrode connector 118 is not limited to the arrangement provided in this application, and other arrangements are also possible, as long as the two electrodes 1135 of the atomizing core 113 can be electrically connected with the battery assembly 12 .

Please refer to FIG. 19 . FIG. 19 is a partial structural schematic view of the second embodiment of the atomizer provided by the present application.

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, the difference is that the atomizer 11 includes a cooling structure 119, and the cooling structure 119 is arranged on In the air outlet channel 1112. Wherein, the cooling structure 119 is configured to reduce the temperature of the aerosol flowing through the air outlet channel 1112 .

By setting the cooling structure 119 in the air outlet channel 1112 to interfere with the flow state of the aerosol near the wall of the air outlet channel 1112, the heat transfer coefficient of the wall surface of the air outlet channel 1112 is increased, thereby allowing the gas to flow out of the outlet of the atomizer 11 The temperature of the aerosol in 1112a is reduced, which is beneficial to improve user experience.

It can be understood that on the premise that the cooling structure 119 is set to reduce the temperature of the aerosol at the air outlet 1112a, the distance h between the atomization surface of the atomization core 113 and the air inlet 1125a is set as above (atomizer 11 first The content specifically introduced in the embodiment: the distance h) between the atomization surface of the atomization core 113 and the air inlet hole 1125a is optional. Compared with only setting the cooling structure 119 in the air outlet channel 1112, on the basis of setting the cooling structure 119 in the air outlet channel 1112, the distance h between the atomizing surface of the atomizing core 113 and the air inlet hole 1125a is set as above, which can It is better to reduce the temperature of the aerosol at the air outlet 1112a, and the way to reduce the temperature of the aerosol at the air outlet 1112a can be designed according to specific needs.

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

In a specific embodiment, the cooling structure 119 is a protrusion 1191 disposed 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; that is, similar to the structure of a corrugated tube. Optionally, the cooling structure 119 is an independent component, and a spiral (not shown) is arranged in the air outlet channel 1112, and the outer wall of the spiral is attached to the inner wall of the air outlet 1112, so that the spiral serves as the air outlet 1112 The protrusion 1191 on the inner wall surface of the . The inner wall surface of the air outlet channel 1112 is a smooth surface, and the screw is fixed by the friction between the screw 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 screw to realize the fixing of the screw , and the wire diameter of the helix is larger than the depth of the helical groove, so as to form the protrusion 1191 . For example, when assembling, the spiral member is rotated and inserted into the spiral groove of the air outlet channel 1112 . Preferably, the spiral member is a metal spring, and the metal material has better heat absorption and heat conduction effects than other materials, which is beneficial to further reduce the temperature of the aerosol in the air outlet 1112a. In one embodiment, the wire diameter of the metal spring is 0.2mm-0.3mm, the wire diameter of the metal spring is the height of the formed protrusion 1191, and the turn pitch of the metal spring is the distance between adjacent protrusions 1191; wherein , the wire diameter of the metal spring is the diameter of the metal wire used to make the metal spring. Exemplarily, when the wire diameter of the metal spring is 0.2mm-0.3mm, the diameter of the metal spring is 3mm, and the length of the air outlet channel 1112 is 28mm, a better cooling effect can be achieved.

It can be understood that when the protrusion 1191 is integrally formed with the side wall of the air outlet channel 1112, the size design of the protrusion 1191 and the size design between adjacent protrusions 1191 can refer to the height of the protrusion 1191, the adjacent The ratio of the distance between the centers of the protrusions 1191 to the height of the protrusions 1191. When the protrusion 1191 is formed by a spiral, the selection of the spiral can also refer to the height of the protrusion 1191 , the ratio of the distance between the centers of adjacent protrusions 1191 to the height of the protrusion 1191 described later.

Please refer to Fig. 20-Fig. 23, Fig. 20 is the structural schematic diagram of the first experimental piece, Fig. 21 is the structural schematic diagram of the second experimental piece, Fig. 22 is the airflow temperature distribution diagram at the outlet of the first experimental piece, Fig. 23 is the second experimental piece Airflow temperature distribution at the outlet of the test piece.

The first test piece shown in FIG. 20 is a round tube 30 with a smooth inner wall, and the length of the round tube 30 is 50 mm. The port on the left side of the round pipe 30 is the inlet, and the port on the right side of the round pipe 30 is the outlet, and the airflow flows from the inlet to the outlet.

The second experimental piece shown in Fig. 21 is the round tube 30 that is provided with protrusion 31 on the inner wall surface, and the length of round tube 30 is 50mm, and the height of protrusion 31 is 0.5mm; Wherein, along the height direction of protrusion 31 , The cross-sectional shape of the protrusion 31 is square. The protrusion 31 is provided along the inner surface of the circular tube 30 for a circle. The port on the left side of the round pipe 30 is the inlet, and the port on the right side of the round pipe 30 is the outlet, and the airflow flows from the inlet to the outlet.

Use the same gas to flow through the first experimental piece and the second experimental piece respectively at the same flow rate to obtain the airflow temperature at the outlet of the first experimental piece (as shown in Figure 22) and the airflow temperature at the outlet of the second experimental piece ( as shown in Figure 23). For the airflow temperature at the outlet of the first experimental piece, the temperature from the tube wall to the center gradually increases, that is, the highest temperature of the airflow at the outlet is in the central area; as can be seen from Figure 22, the highest airflow temperature at the outlet of the first experimental piece is 84.6°C. For the airflow temperature at the outlet of the second experimental piece, the temperature from the pipe wall to the center gradually increases, that is, the highest temperature of the airflow at the outlet is in the central region; as can be seen from Figure 23, the highest temperature of the airflow at the outlet of the second experimental piece is 73.3°C. It can be seen that the provision of protrusions 31 on the inner wall of the circular tube 30 reduces the maximum temperature at the outlet by 13.4%, and the cooling effect is obvious. That is to say, the protrusion 1191 (namely, the cooling structure 119 ) is provided on the inner wall of the air outlet channel 1112 , which can obviously reduce the temperature of the aerosol at the air outlet 1112 a, which is beneficial to improve the user experience. Among them, the gas used in the experiment is aerosol or its characteristics are similar to aerosol.

It can be understood that arranging the protrusions 31 in the second experimental piece at intervals along the inner surface of the circular tube 30 can also significantly reduce the temperature of the aerosol at the air outlet.

Please refer to FIG. 24 and FIG. 25 . FIG. 24 is a schematic diagram of the change law of the local surface heat transfer coefficient corresponding to different boundary layer shapes, and FIG. 25 is a schematic diagram of the flow path of the airflow in the outlet channel of FIG. 19 .

The principle of setting the protrusion 1191 (that is, the cooling structure 119) in the air outlet channel 1112 to reduce the temperature of the aerosol at the air outlet 1112a is as follows:

In Fig. 24, 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 pipeline from the inlet of the pipeline, and the shape of the boundary layer after the fluid enters the pipeline is divided into laminar boundary layer, transition zone, and 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 shape, the heat transfer in the laminar boundary layer is mainly through heat conduction, and the heat transfer coefficient of air is small, so the heat transfer coefficient is at a low level as a whole; and in the laminar boundary layer, with The heat transfer coefficient decreases as the thickness of the laminar boundary layer increases. When the boundary layer shape changes from the transition zone to the fully developed turbulent boundary layer shape, there are two forms of heat transfer in the turbulent boundary layer, heat conduction and heat convection, so the local surface heat transfer coefficient can always maintain a high value. Since the fluid will partially adhere to the pipe wall during the flow, there is a laminar bottom layer in the turbulent boundary layer.

Under the premise that the inner wall surface of the air outlet channel 1112 is smooth, the flow velocity of the aerosol in the air outlet channel 1112 is usually not high, and the flow boundary layer near the wall surface is close to the form of laminar flow; After the structure, it is equivalent to artificially disturbing the flow boundary layer near the wall, making it change from a regular laminar flow form to a turbulent flow form. The heat transfer coefficient of the sol. The increased heat transfer coefficient helps the aerosol to exchange heat with the side wall of the air outlet channel 1112, and more heat is absorbed by the side wall of the air outlet channel 1112, thereby reducing the temperature of the aerosol at the air outlet 1112a.

Please refer to Fig. 26 and Fig. 27, Fig. 26 is a distribution diagram of the velocity field in the outlet channel of the conventional atomizer, and Fig. 27 is a distribution diagram of the velocity field in the outlet channel of the atomizer provided in the second embodiment of the present application.

Generally, the flow field in the air outlet channel 1112 can be divided into a near wall area and a mainstream area, and the heat exchange between the aerosol and the side wall of the air outlet channel 1112 mainly occurs in the near wall area. Referring to Fig. 26 and Fig. 27, it can be seen that the protrusion 1191 (that is, the cooling structure 119) is set on the inner wall of the air outlet channel 1112, which has a greater effect on the aerosol in the near wall area, so that the state of the laminar boundary layer is transformed into a turbulent boundary layer. The layer state improves the heat exchange efficiency between the aerosol and the side wall of the air outlet channel 1112, while the aerosol in the mainstream region has little influence. It can be seen from Figure 26 and Figure 27 that the flow velocity in the near-wall area is less than 3ms^-1, and the flow velocity in the near-wall area is faster as it is closer to the mainstream area, and the flow velocity in the mainstream area is greater than 3ms^-1. That is to say, the protrusion 1191 (i.e., the cooling structure 119) is provided on the inner wall of the air outlet channel 1112, which has an effect on the local flow field near the wall of the air outlet channel 1112, and has little influence on the flow field in the main flow area and other areas. Will not affect the user's aerosol inhalation. Among them, the flow field is the velocity field.

In a specific embodiment, the height of the protrusions 1191 is 0.3 mm-0.6 mm; and/or, the ratio of the distance between the centers of adjacent protrusions 1191 to the height of the protrusions 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., and can be specifically designed according to needs. The height of the protrusion 1191 and the ratio of the distance between the height of the protrusion 1191 and the center of the adjacent protrusion 1191 will be described in detail below by taking the cross-section of the protrusion 1191 as a square or a circle as an example.

Please refer to FIG. 28 and FIG. 29 , FIG. 28 is a schematic structural diagram of a protrusion with a square cross section in FIG. 19 , and FIG. 29 is a structural schematic diagram of a protrusion with a circular cross section in another embodiment.

In FIG. 28 , along the height direction of the protrusion 1191 , the cross section of the protrusion 1191 is a square. In FIG. 29 , along the height direction of the protrusion 1191 , the cross section of the protrusion 1191 is circular. In Fig. 28 and Fig. 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".

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 cooling effect of the aerosol 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 near the wall of the outlet channel 1112, and the flow field near the wall of the outlet channel 1112 is also related to the height of the protrusions 1191, so it can be analyzed through flow field analysis and The height of the protrusions 1191 is used to design the distance between the centers of adjacent protrusions 1191 .

It can be understood that when the size of the protrusions 1191 (for example, the cross-sectional area of the protrusions 1191 along the same direction) is not much different, the influence of the cross-sectional shape on the suction resistance is small. According to the drawing resistance requirements of the design standard of the atomizer 11 , the upper limit of the drawing resistance additionally caused by the protrusion 1191 is set to 100 Pa. Taking the cross-section of the protrusion 1191 as a square as an example, the relationship between the height of the protrusion 1191 , the length of the air outlet channel 1112 and the suction resistance of the atomizer 11 is studied, and the optimal value of the height of the protrusion 1191 is determined.

The research results are shown in Fig. 30 and Fig. 31. Fig. 30 is the calculated change law of the suction resistance with the protrusion height for different air outlet channel lengths. Fig. 31 is the temperature distribution diagram of the air outlet corresponding to different protrusion heights.

It can be seen from Fig. 30 that the suction resistance of the air outlet channel 1112 increases with the increase of the height of the protrusion 1191 and the length of the air outlet channel 1112; the shorter the length of the air outlet channel 1112, the larger the upper limit of the height of the protrusion 1191 is. For example, when the length of the air outlet channel 1112 is 20 mm, the height of the protrusion 1191 may be 0.6 mm, or even 0.62 mm; therefore, the upper limit of the height of the protrusion 1191 is preferably 0.6 mm. Wherein, the length of the air outlet channel 1112 is represented by "L" in FIG. 30 . Among them, the experimental conditions: the diameter of the air outlet channel 1112 is 3 mm.

It can be seen from Figure 31 that the highest temperature of the aerosol at the air outlet 1112a is in the central area, and on the premise that the length of the air outlet channel 1112 is the same, when the protrusion 1191 is not provided, the highest temperature of the aerosol at the air outlet 1112a is 84.6°C; When the height of the protrusion 1191 is 0.1mm, the maximum temperature of the aerosol at the air outlet 1112a is 83.8°C, which is 0.9% lower than that without the protrusion 1191; The maximum temperature of the aerosol at the air outlet 1112a is 81.7°C, which is 3.4% lower than that without the protrusion 1191; when the height of the protrusion 1191 is 0.3mm, the maximum temperature of the aerosol at the air outlet 1112a is 78.5°C, compared with Without the protrusion 1191, the temperature is reduced by 7.2%; when the height of the protrusion 1191 is 0.4mm, the maximum temperature of the aerosol at the air outlet 1112a is 75.3°C, which is 11% lower than that without the protrusion 1191 When the height of the protrusion 1191 is 0.5mm, the maximum temperature of the aerosol at the air outlet 1112a is 73.3°C, which is 13.4% lower than that without the protrusion 1191. That is, the higher the height of the protrusion 1191, the lower the maximum temperature of the aerosol in the air outlet 1112a, and the better the cooling effect; preferably, the height of the protrusion 1191 is greater than or equal to 0.3mm. Among them, the experimental conditions: the diameter of the air outlet channel 1112 is 3mm, and the temperature of the aerosol in and out of the air channel 1112 is 100°C.

Please refer to FIG. 32 . FIG. 32 is a schematic diagram for calculation of a flow field with a convex section having a square shape.

Referring to Fig. 32, a protrusion 31 is provided in a circular tube 30 with a diameter of 1.5 mm. Along the height direction of the protrusion 31, the cross section of the protrusion 31 is a square, and the gas flows through the circular tube 30 at a speed of 2.6 m/s. . Wherein, the characteristics of the selected gas are similar to those of the aerosol; the flow velocity of the gas is the real flow velocity of the aerosol in the gas outlet channel 1112 . The height of the protrusions 31 is indicated by "H", and the distance between the centers of adjacent protrusions 31 is indicated by "P".

Taking different heights of protrusions 31, experiments were carried out with the schematic diagram of Fig. 32 to study 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 the protrusions 31. The research results are shown in Figure 33, which is a diagram of the change law of the heat transfer coefficient at different heights of the square section protrusions. It can be seen from Fig. 33 that the changing law of the heat transfer coefficient is basically the same for different heights H of the protrusions 31 . Therefore, the height H of the protrusions 31 only affects the 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 protrusions 31 .

Taking the cross-section of the protrusion 31 as a square, and the height H of the protrusion 31 as 0.2 mm as an example, continue to study the velocity field distribution corresponding to different P/H values. The research results are shown in Figure 34 and Figure 35, and Figure 34 is positive The distribution diagram of the velocity field corresponding to the different P/H values of the sectional protrusions in the direction, and Fig. 35 is a diagram of the change law of the heat transfer coefficient with the different P/H values of the sectional protrusions in the positive direction.

It can be seen from Figure 34 that no matter what the P/H value is, the farther away from the wall the faster the flow velocity is. It can be seen from the figure that the P/H value is too small, and there is a large low-velocity area; as the value increases, the low-velocity area gradually decreases, and when it is equal to 17, reattachment occurs, and the heat transfer effect is the best at this time; after continuing to increase the value (P/H=25), the low-velocity area is reduced, but a new laminar boundary layer is redeveloped, which affects the heat transfer efficiency.

It can be seen that when the P/H value is too small (for example, P/H is 5), the flow field in the interval area between adjacent protrusions 31 is not sufficiently disturbed, and the effect of improving the heat exchange efficiency is weak; when the P/H value is At 17 o'clock, the airflow has reattached on the spacing surface between adjacent protrusions 31, and the thickness of the boundary layer in the reattached area is thin and the heat exchange efficiency is high; when the P/H value is too large (for example, P/H is 25), the laminar boundary layer develops again after the airflow reattaches, and the heat transfer efficiency decreases. Therefore, a P/H value that is too small or too large is not conducive to the heat exchange between the aerosol and the wall surface of the outlet channel 1112 .

It can be seen from FIG. 35 that for the protrusions 31 with a square cross-section, the cooling effect is the best when the ratio (P/H) of the distance between the centers of adjacent protrusions 31 to the height of the protrusions 31 is 10-20. Therefore, when the cross-section of the protrusions 1191 arranged on the inner wall of the air outlet channel 1112 is a square, the ratio of the distance between the centers of adjacent protrusions 1191 to the height of the protrusions 1191 is 10-20, optionally, 13 -17.

Please refer to FIG. 36 . FIG. 36 is a schematic diagram for calculation of a flow field with a circular section of the protrusion.

Referring to Figure 36, a protrusion 31 is provided in a circular tube 30 with a diameter of 1.5 mm. Along the height direction of the protrusion 31, the cross section of the protrusion 31 is circular, and the gas flows through the circular tube at a speed of 2.6 m/s. 30. Wherein, the characteristics of the selected gas are similar to those of the aerosol; the flow velocity of the gas is the real flow velocity of the aerosol in the gas outlet channel 1112 . The diameter of the protrusion 31 is indicated by "H", and the distance between the centers of adjacent protrusions 31 is indicated by "P". Since the section of the protrusion 31 is circular, the height of the protrusion 31 is the same as the diameter of the protrusion 31 .

Taking different heights of protrusions 31, experiments were carried out with the structural diagram shown in Fig. 36 to study 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 the protrusions 31. The research results are shown in Fig. 37, which is a diagram of the change law of the heat transfer coefficient at different heights of the circular section protrusions. It can be seen from Fig. 37 that the change law of the heat transfer coefficient is basically the same for different heights H of the protrusions 31 . Therefore, the height H of the protrusions 31 only affects the 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 protrusions 31 .

Taking the cross-section of the protrusion 31 as a circle, and the height H of the protrusion 31 as 0.2mm as an example, continue to study the velocity field distribution corresponding to different P/H values, and the research results are shown in Figure 38 and Figure 39, and Figure 38 is The distribution diagram of the velocity field corresponding to the different P/H values of the circular cross-section bulges. Figure 39 is a diagram of the change law of the heat transfer coefficient with the different P/H values of the circular cross-section bulges.

It can be seen from Figure 38 that no matter what the P/H value is, the farther away from the wall the faster the flow velocity is. It can be seen from the figure that the P/H value is too small, and there is a large low-speed area; as the value increases, the low-speed area gradually decreases, and when it is equal to 14, reattachment occurs, and the heat transfer effect is the best at this time; after continuing to increase the value (P/H=20), the low-velocity area is reduced, but a new laminar boundary layer is redeveloped, which affects the heat transfer efficiency.

It can be seen that when the P/H value is too small, the flow field in the interval area between adjacent protrusions 31 is not sufficiently disturbed, and the effect of improving the heat exchange efficiency is weak; when the P/H value is 14, the air flow in the adjacent protrusions 31 Reattachment occurs on the spacing surface between 31, and the boundary layer in the reattachment area is thin and the heat transfer efficiency is high; when the P/H value is too large, the laminar boundary layer re-develops after the airflow reattaches, and the heat transfer Reduced efficiency. Therefore, a P/H value that is too small or too large is not conducive to the heat exchange between the aerosol and the wall surface of the outlet channel 1112 .

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

Therefore, when the section of the protrusion 1191 is square or circular, the optimal design of the height of the protrusion 1191, the distance between the centers of adjacent protrusions 1191 and the height of the protrusion 1191 is shown in Table 2. .

Table 2

That is to say, regardless of whether the section of the protrusion 1191 is square or circular, when the length of the air outlet channel 1112 is less than or equal to 20 mm, the height of the protrusion 1191 is 0.6 mm-0.7 mm; when the length of the air outlet channel 1112 is greater than 20 mm and less than or equal to 30mm, the height of the protrusion 1191 is 0.5mm-0.6mm; when the length of the air outlet channel 1112 is greater than 30mm and less than or equal to 40mm, the height of the protrusion 1191 is 0.4mm-0.5mm; when the length of the air outlet channel is greater than 40mm and less than When equal to 50mm, the height of the protrusion 1191 is 0.35mm-0.45mm; when the length of the air outlet channel is greater than 50mm, the height of the protrusion 1191 is 0.3mm-0.4mm. Wherein, when the length of the air outlet channel 1112 is less than 20 mm, optionally, the height of the protrusion 1191 is 0.6 mm. When the length of the air outlet channel is greater than 40mm and less than 50mm, optionally, the height of the protrusion 1191 is 0.4mm.

When the cross-section of the protrusions 1191 is a square, the ratio of the distance between the centers of adjacent protrusions 1191 to the height of the protrusions 1191 is 10-20. When the cross-section of the protrusions 1191 is circular, the ratio of the distance between the centers of adjacent protrusions 1191 to the height of the protrusions 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, the distance between the centers of adjacent protrusions 1191 and the distance between the centers of adjacent protrusions 1191 Designing the ratio of the distance of the protrusion 1191 to the height of the protrusion 1191 also takes into account the influence of the width of the protrusion 191 on the temperature of the aerosol at the air outlet 1112a.

Please refer to FIG. 40 . FIG. 40 is a schematic diagram of the partial structure of the third embodiment of the atomizer provided by the present application.

In the third embodiment of the atomizer 11, the structure of the atomizer 11 is basically the same as that of the first embodiment of the atomizer 11, except that the air outlet channel 1112 of the atomizer 11 is far away from the atomizing core 113 One end of the first split into a plurality of sub-outlet channels 1112b and then converge together again.

When the user sucks through the air outlet 1112a, the tongue is located at or corresponds to the central position A of the air outlet 1112a, and the tongue is the key to temperature perception. By reducing the temperature at the central position A of the air outlet 1112a, the user can reduce the air temperature perceived by the user. Sol temperature, thereby improving the user experience. The inventors of the present application have found that if the air outlet channel 1112 adopts a straight-through structure, the temperature of the aerosol flowing out from the central position A of the air outlet 1112a is higher than that of the surrounding aerosol (see the test results in Figure 42 for details). In this application, the temperature of the aerosol at the central position A of the air outlet 1112a is reduced by making the air outlet channel 1112 split into a plurality of sub-air outlet channels 1112b at the end away from the atomizing core 113 and converge again. That is to say, the aerosol atomized by the atomizing core 113 first splits into multiple sub-air outlet channels 1112b at the end of the air outlet channel 1112 away from the atomizing core 113, and then gathers together and flows out from the air outlet 1112a. For cooling, compared with the direct air outlet channel 1112, the temperature perceived by the user when inhaling the aerosol through the air outlet 1112a is significantly lower, which is beneficial to improve the user experience. Wherein, the number of sub air outlet channels 1112b can be designed according to needs.

In one embodiment, a separator 1112c is provided in the air outlet channel 1112 to divide the end of the air outlet channel 1112 away from the atomizing core 113 into two sub-air outlet channels 1112b, so that the air outlet channel 1112 first divides the flow; wherein, the separator 1112c The extending direction is the same as the extending direction of the air outlet channel 1112 . The end surface of the separator 1112c close to the air outlet 1112a is spaced from the air outlet 1112a, so that the air outlet channels 1112 are converged after being split (as shown in FIG. 40 ). That is to say, the air outlet channel 1112 includes a first part, a second part and a third part, the inlet of the air outlet channel 1112 is the inlet of the first part, and the outlet of the third part is the air outlet 1112a; the first part and the third part are straight pipes The separator 1112c is disposed on the second part, so that the second part has an obvious split flow effect relative to the first part and the third part, so as to realize split flow cooling. It can be understood that the number of sub-air outlet channels 1112b can be designed according to needs, and the structure of the partition 1112c can be designed according to the number of sub-air outlet channels 1112b.

Wherein, the separator 1112c may be integrally formed with the air outlet channel 1112, or may be fixed together with the air outlet channel 1112 by clamping, etc., and is specifically designed according to needs. The thickness of the separator 1112c is designed according to needs, so that the end of the air outlet channel 1112 away from the atomizing core 113 can be divided into two sub-air outlet channels 1112b, and the temperature of the aerosol flowing through the sub-air outlet channels 1112b can be cooled. It can be understood that the aerosol is mixed with the air in the sub-air outlet channel 1112b to cool down, and the aerosol flowing through the sub-air outlet channel 1112b is absorbed by the wall of the sub-air outlet channel 1112b, thereby reducing the temperature of the aerosol at the air outlet 1112a. Furthermore, since the aerosols in the two sub-air outlet channels 1112b converge and mix at the central position A of the air outlet 1112a, the temperature of the aerosol flowing out from the central position A is further reduced (see the test results in FIG. 44 for details).

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, and the thickness of the partition 1112c should be set to reduce the temperature of the aerosol in the two sub-air outlet channels 1112b.

Optionally, the partition 1112c can be a hollow plate, that is, the interior of the partition 1112c is hollow, and the two sub-air outlet channels 1112b are two completely separated channels; the wall thickness of the partition 1112c and the width of the hollow cavity inside (The width of the hollow cavity inside the partition 1112c is the dimension along the thickness direction of the partition 1112c) determines the thickness of the partition 1112c, the wall thickness of the partition 1112c and the width of the internal hollow cavity are designed according to needs, can Realize shunt cooling. Optionally, the separator 1112c is a rectangular hollow plate.

Optionally, no matter whether the separator 1112c is a rectangular solid plate or a rectangular hollow plate, the ratio of the length of the separator 1112c (the length of the separator 1112c is the dimension along the direction in which the outlet channel 1112 extends) to the length of the outlet channel 1112 is 1: 5-1:4. Through the above settings, a better 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 chamber 1111 will not be reduced too much, and the storage space of the liquid storage chamber 1111 will not be reduced. cannot meet the needs of users.

Specifically, the dimension of the end of the air outlet channel 1112 away from the atomizing core 113 in the width direction of the atomizer 11 becomes larger to form a widened section B; the widened section B is the second and third parts of the air outlet channel 1112 . The separator 1112c is arranged on the widening section B and parallel to the thickness direction of the atomizer 11, so as to divide the end of the air outlet channel 1112 away from the atomizing core 113 into two sub-air outlet channels 1112b; the end surface of the separator 1112c close to the air outlet 1112a and the The air outlets 1112a are arranged at intervals, so that the third part of the air outlet channel 1112 is a straight-through pipe, and the aerosols in the two sub-air outlet channels 1112b are gathered together in the third part and flow out from the air outlet 1112a. By setting the widened section B on the air outlet channel 1112, the partition 1112c provided on the widened section B can have a larger thickness, which can better cool down the aerosol in the two sub-air outlet channels 1112b. In one embodiment, the end surface of the widening section B close to the atomizing core 113 is flush with the end surface of the partition 1112c close to the atomizing core 113, that is, the channel width of the air outlet channel 1112 is increased only at the place where the partition 1112c is installed. Width.

The widened section B may have the same cross-sectional shape and area along its extending direction; that is, the widened section B is a straight-through structure. The widening section B may include a first section and a second section, 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 along the direction away from the atomizing core 113 gradually increases , so that the longitudinal section of the first section along the direction away from the atomizing core 113 is a tapered 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 (such as Figure 40). By setting the first section of the widened section B as a tapered structure, the aerosol can be prevented from forming a vortex at the corner of the widened section B, thereby avoiding the influence of the structure of the widened section B on the amount of aerosol flowing out of the air outlet 1112a.

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

Please refer to Figure 41-Figure 44, Figure 41 is a schematic diagram of the partial structure of the existing atomizer, Figure 42 is the cloud map of the aerosol temperature distribution at the air outlet of the atomizer provided in Figure 41, and Figure 43 is the atomization provided in Figure 40 The cloud diagram of the aerosol temperature distribution at the air outlet of the nebulizer, and Fig. 44 is the flow velocity vector distribution diagram on several surfaces of the air outlet channel of the nebulizer near the air outlet provided in Fig. 40 .

The structure of the atomizer provided in Figure 41 is different from the structure of the atomizer 11 provided in Figure 40 only in the setting of the air outlet channel. The air outlet channel of the atomizer in Figure 41 is a straight-through structure. The test conditions are as follows: the diameter of the air outlet channel is 2.5mm, the length of the air outlet channel is 32.9mm, the initial temperature of the S-shaped heating layer 1134 on the atomizing core is 250°C, and the atomization amount is 3s/9mg. The atomizer 11 provided in Figure 40 was tested under the following test conditions: the diameter of the end of the air outlet channel 1112 close to the atomizing core 113 before splitting is 2.5mm, and the record between the inlet of the air outlet channel 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°C, and the atomization amount is 3s/9mg. The test results are shown in Figure 42-Figure 44.

It can be seen from Fig. 44 that when the aerosol splits into the two sub-air outlet channels 1112b in the air outlet channel 1112 and then converges and mixes, there will be a mixing vortex zone at the center position A, that is, the central position of the air outlet 1112a will be further made in the process of converging and mixing. The temperature of the aerosol of A decreases, so that the highest temperature of the air outlet 1112a is located on both sides of the central position A, which is beneficial to reduce the temperature of the aerosol perceived by the user.

Comparing Figure 42 and Figure 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 in the center of the air outlet channel, and the highest temperature up to 80°C; when the air outlet channel 1112 is provided with a shunt flow cooling structure, due to the shunt effect, the aerosol is mixed with the air in the two sub-air outlet channels 1112b to cool down and is absorbed by the cavity walls of the two sub-air outlet channels 1112b, although the aerosol is in the The air outlets 1112a converge again, but the temperature at the central position A drops significantly, the temperature at the central position A is about 69°C, the highest temperature of the air outlet 1112a is located on both sides of the central position A, and the highest temperature of the air outlet 1112a is also Lowering to about 74°C, the overall cooling effect is about 5°C-10°C.

Tests have proved that the air outlet channel 1112 is divided into multiple sub-air outlet channels 1112b at the end away from the atomizing core 113 and then converged together, so that the temperature of the aerosol at the air outlet 1112a is significantly lowered, and the user experience is improved.

Next, the separation distance d between the end surface of the partition plate 1112c close to the air outlet 1112a and the air outlet 1112a will be studied. The atomizer 11 with the air outlet channel 1112 of the split flow structure is tested, and the test conditions are: the diameter of the end of the air outlet channel 1112 close to the atomizing core 113 before splitting is 2.5mm, and the record between the inlet of the air outlet channel and the air outlet 1112a The initial temperature of the S-shaped heating layer 1134 on the atomizing core 113 is 250°C, and the atomization amount is 3s/9mg. The test results are shown in Figure 45 and Figure 46. Figure 45 is the relationship curve between the maximum temperature of the aerosol at the air outlet and the separation distance d, and Figure 46 is the relationship between the aerosol temperature at the center position A of the air outlet and the separation distance d Graph. It can be understood that the highest aerosol temperature at the air outlet 1112a in Fig. 45 refers to the highest aerosol temperature on the entire air outlet 1112a.

Analyzing Figure 45, it can be concluded that the distance d between the end surface of the partition 1112c near the air outlet 1112a and the air outlet 1112a has little effect on the maximum aerosol temperature at the air outlet 1112a. Analyzing Figure 46, it can be concluded 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 3mm, the aerosol temperature at the center position A of the air outlet 1112a no longer has The relatively large change indicates that when the separation distance d is equal to 3mm, the aerosols have been mixed sufficiently, and further increasing the separation distance d has very limited influence on the temperature distribution of the aerosol at the air outlet 1112a. Therefore, the range of d is preferably 0mm<d≤3mm, and the range of d is more preferably 0mm<d≤2.5mm.

Among them, the atomizer 11 obtained from the experimental data in Fig. 46 is provided with an air outlet channel 1112 with a split flow structure, and the distance h between the atomization surface of the atomization core 113 and the air inlet hole 1125a is set to be 0.4mm.

It can be understood that, on the premise that the temperature of the aerosol at the air outlet 1112a is reduced by making the air outlet channel 1112 split into multiple sub-air outlet channels 1112b at the end away from the atomizing core 113 and then converging together, the atomization of the atomizing core 113 The distance h between the surface and the air inlet 1125a is set as above (the content introduced in the first embodiment of the atomizer 11: the distance h between the atomization surface of the atomizing core 113 and the air inlet 1125a) to reduce The aerosol temperature at the air outlet 1112a is optional, and it is also possible to set a cooling structure 119 (the cooling structure 119 specifically introduced in the second embodiment of the atomizer 11 ) in the air outlet channel 1112 to reduce the aerosol temperature at the air outlet 1112a selected. The three implementations of reducing the aerosol temperature at the air outlet 1112a described above can be combined arbitrarily according to needs, and the aerosol temperature at the air outlet 1112a of the nebulizer 11 can be in the range of 55°C-85°C, optional Yes, the temperature range of the aerosol at the air outlet 1112a of the atomizer 11 is 70°C-80°C.

The above is only the implementation mode of this application, and does not limit the scope of patents of this application. Any equivalent structure or equivalent process conversion made by using the contents of this application specification and drawings, or directly or indirectly used in other related technical fields, All are included in the scope of patent protection of the present application in the same way.

Claims (14)

1. An atomizer, characterized in that, comprising: The housing has an air outlet channel; An installation seat, the interior of the installation seat has an atomization chamber; The atomizing core is arranged in the atomizing cavity; the atomizing core has an atomizing surface, the atomizing surface faces the air outlet of the mounting seat, and the air outlet channel is connected to the air outlet of the mounting seat Vent; Wherein, the mounting seat is provided with an air intake hole, and the air intake hole is used to communicate with the external atmosphere and the atomization chamber, so that the external atmosphere can flow into the atomization chamber through the air intake hole, so There is a certain distance h between the atomizing surface and the air inlet. 2. The atomizer according to claim 1, wherein the range of h is 0mm<h≤0.7mm. 3. The atomizer according to claim 1, characterized in that the range of h is 0.2mm≤h≤0.5mm. 4. The atomizer according to claim 1, further comprising: There is an installation cavity in the housing; the installation seat is arranged in the installation cavity; the installation seat has a top wall and a side wall connected to each other, and the top wall and the side wall are surrounded to form the fog An atomizing chamber; the side wall of the mounting seat cooperates with the side wall of the mounting cavity to form an air guide channel; the side of the atomizing core close to the top wall has an atomizing surface; wherein, the side of the mounting seat The air inlet hole is opened on the wall, so that the air guide channel communicates with the atomization chamber. 5. The atomizer according to claim 1, characterized in that, there is a liquid storage chamber in the housing, and the liquid storage chamber is used to store the aerosol generating substrate; there is a liquid guide channel in the mounting seat, The liquid guide channel is in communication with the liquid storage chamber, and the liquid guide channel is used to guide the aerosol generating matrix in the liquid storage chamber to the side wall of the atomizing core and/or the A side of the atomizing core away from the air outlet. 6. The atomizer according to claim 4, wherein the mounting seat includes a mounting top cover and a mounting base; the mounting top cover is sleeved on the mounting base; The outer surface of the side wall of the installation top cover is provided with an air guide groove, the side wall of the installation cavity cooperates with the bottom wall of the air guide groove to form the air guide channel, and the air guide groove is close to the installation The air inlet is provided on one side of the top wall of the top cover; the installation base has an air inlet, and the end of the air guide channel away from the air inlet communicates with the air inlet. 7. The atomizer according to claim 6, wherein the width of the air inlet hole is equal to the width of the air guide groove. 8. The atomizer according to claim 6, wherein one end of the air guide groove is a closed end and is set close to the top wall of the installation top cover, and the other end of the air guide groove is open end and extends to the bottom surface of the mounting top cover. 9. The atomizer according to claim 6, wherein the installation base includes a bottom and a support portion, the installation top cover is sleeved on the support portion and abuts against the bottom, the The atomizing core is arranged on a side of the support part close to the top wall of the installation top cover. 10. The atomizer according to claim 9, characterized in that there are two air guide grooves, which are respectively arranged on the outer surfaces of the two side walls opposite to the installation top cover; the bottom The side facing away from the support part has a first groove as the air inlet, and the two ends of the first groove near the two air guide grooves have two first openings, and the two first The openings communicate with the ends of the two air guide grooves close to the bottom respectively. 11. The atomizer according to claim 9, wherein the atomizing core comprises a base, a heat-generating layer and two electrodes, and the base is arranged on the top wall of the support part close to the installation top cover One side of the substrate, the surface of the substrate close to the top wall is the atomization surface, the heating layer and the two electrodes are arranged on the atomization surface, and the two electrodes are respectively connected to the heating opposite ends of the layer. 12. The atomizer according to claim 11, characterized in that, the atomizer further comprises two electrode connectors, one end of each electrode connector is electrically connected to one of the electrodes, and the other end is set A surface at the bottom of the installation base away from the support part. 13. The atomizer according to claim 12, wherein the surface of the bottom facing away from the supporting part has a second groove, and the side of the second groove close to the housing has a second groove. Opening hole; the other end of each electrode connecting piece is disposed in the second groove through the second opening. 14. An electronic atomization device, characterized by comprising a battery assembly and an atomizer, the battery assembly is used to power the atomizer, wherein the atomizer is any one of claims 1-13 nebulizer as described in item.

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