Atomizer and aerosol generating device

Abstract

The utility model discloses an atomizer and an aerosol generating device, and the atomizer comprises a housing which is used for forming a liquid storage cavity of the atomizer and at least one part of an atomization channel; the atomizing core is used for heating the atomizing matrix; the transfer body is used for achieving transmission of the atomization matrix between the liquid storage cavity and the atomization core, and the liquid storage cavity transmits the atomization matrix to the transfer body through the overflowing opening; wherein the mass transfer body is provided with an atomizing surface and a liquid absorbing surface which are oppositely arranged; a main air channel is arranged on the atomization face in a surrounding mode, extends along a central axis and forms at least one part of an atomization channel. The value range of the ratio of the area of the liquid suction face right facing the overflowing opening to the sectional area of the atomization face in the radial direction is 0.6-17.5. The atomizer and the aerosol generating device have the beneficial effects that the transmission rate of the atomization matrix to the liquid guide structure is matched with the atomization rate of the atomization core by limiting the relation between the liquid absorption area of the transfer body and the size of the main air channel.

Description

Technical Field

[0001] The present application relates to the field of atomization technology, and in particular to a nebulizer and an aerosol generating device. Background Art

[0002] A nebulizer is a device that generates an aerosol from an atomized matrix. The nebulizer generally includes a shell, a liquid storage chamber, an atomization channel, a liquid guide structure and an atomization core. The liquid storage chamber and the atomization channel are formed inside the shell. The liquid guide structure is used to guide the atomized matrix to the atomization core, and the atomization core is used to heat the atomized matrix to generate an aerosol.

[0003] In the prior art, an airway structure is provided inside the liquid guide structure, and the airway structure is used as part of the atomization channel. The atomization core is installed inside the airway structure. The size of the airway structure affects the air flow rate of the atomization channel, and further affects the atomization rate of the atomization core.

[0004] When the transmission rate of the atomizing matrix to the liquid guide structure does not match the atomizing rate of the atomizing core, it is easy to cause oil leakage or burnt liquid. Utility Model Content

[0005] In view of this, the present application provides an atomizer, aiming to improve the problem of oil leakage or burnt oil in existing atomizers.

[0006] In a first aspect, an embodiment of the present application provides an atomizer, comprising:

[0007] A housing, used to form at least a portion of the liquid storage chamber and the atomization channel of the atomizer;

[0008] Atomizer core, used to heat the atomization matrix;

[0009] A mass transfer body, used to transfer the atomized matrix between the liquid storage chamber and the atomizing core, wherein the liquid storage chamber transfers the atomized matrix to the mass transfer body through the flow port;

[0010] Wherein, the mass transfer body has an atomizing surface and a liquid absorbing surface arranged opposite to each other;

[0011] A main air passage is provided around the atomizing surface, the main air passage extends along a central axis, and the main air passage constitutes at least a part of the atomizing channel;

[0012] The ratio of the area of ​​the liquid suction surface opposite to the flow port to the radial cross-sectional area of ​​the atomizing surface is in the range of 0.6-17.5.

[0013] Optionally, in some embodiments of the present application, the atomizer further comprises:

[0014] an atomizing tube, disposed inside the housing to divide the interior space of the housing into at least a portion of a liquid storage chamber and an atomizing channel;

[0015] The atomizing tube has a first tube end and a second tube end that are oppositely disposed, and the first tube end is coupled to the housing;

[0016] The mass transfer body has a first end face and a second end face that are oppositely arranged; at least a portion of the mass transfer body is arranged in the atomizing tube, and the second end face passes through the second tube end to form the flow port between the second tube end and the second end face.

[0017] Optionally, in some embodiments of the present application, the axial distance between the second tube end and the second end face is less than or equal to the distance between the end of the atomizer core away from the second end face and the second end face.

[0018] Optionally, in some embodiments of the present application, the atomizer further comprises:

[0019] a base fixedly connected to the housing;

[0020] Wherein, the flow port is located between the base and the second pipe end.

[0021] Optionally, in some embodiments of the present application, the axial distance between the second tube end and the second end face is in the range of 3-5 mm.

[0022] Optionally, in some embodiments of the present application, the diameter of the main airway ranges from 2 to 6 mm.

[0023] Optionally, in some embodiments of the present application, the mass transfer body further comprises:

[0024] Multiple ventilation slots are arranged at different circumferential positions;

[0025] Wherein, the ventilation groove extends in a direction parallel to the central axis; at least a portion of the ventilation groove is formed on the liquid suction surface.

[0026] Optionally, in some embodiments of the present application, the ventilation groove passes through the first end surface and the second end surface respectively, and the ventilation groove is open in the radial direction.

[0027] Optionally, in some embodiments of the present application, the atomizer core further includes:

[0028] a sealing member, disposed between the atomizing tube and the housing;

[0029] There is a distance between at least part of the sealing element and the mass transfer body to form an accommodating space.

[0030] In a second aspect, an embodiment of the present application further provides an aerosol generating device, comprising the atomizer as described above.

[0031] The beneficial effect of the present application is that it provides a nebulizer and an aerosol generating device that match the transmission rate of the atomized matrix to the liquid guide structure with the atomization rate of the atomizing core by limiting the relationship between the liquid absorption area of ​​the mass transfer body and the size of the main airway.

[0032] More specifically, some embodiments of the present application may produce the following specific beneficial effects:

[0033] Since the air flow rate of the atomization channel is related to the size of the main airway, and the transmission rate of the atomization matrix to the mass transfer body is related to the surface area of ​​the atomization matrix exposed to the flow port by the liquid suction surface, the present application limits the ratio of the area of ​​the liquid suction surface facing the flow port to the radial cross-sectional area of ​​the atomization surface, that is, limits the relationship between the surface area of ​​the atomization matrix exposed to the flow port by the liquid suction surface and the size of the main airway, so that the transmission rate of the atomization matrix to the mass transfer body matches the atomization rate of the atomization core, thereby improving the problem of oil leakage or burnt air. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0035] Figure 1 This is a schematic diagram of the internal structure of an atomizer provided in an embodiment of the present application;

[0036] Figure 2 yes Figure 1 An enlarged view of a portion of

[0037] Figure 3 yes Figure 1 An enlarged view of another part;

[0038] Figure 4 It is a front view of a portion of an atomizer provided in an embodiment of the present application;

[0039] Figure 5 This is a schematic diagram of the internal structure of a portion of the first atomizer provided in an embodiment of the present application;

[0040] Figure 6 yes Figure 5 An enlarged view of a portion of

[0041] Figure 7 This is an exploded view of a portion of an atomizer provided in an embodiment of the present application;

[0042] Figure 8This is a schematic diagram of the internal structure of a portion of the second atomizer provided in an embodiment of the present application;

[0043] Figure 9 This is a schematic diagram of the internal structure of a portion of the third atomizer provided in an embodiment of the present application;

[0044] Figure 10 This is a three-dimensional diagram of a mass transfer body in an atomizer provided in an embodiment of the present application;

[0045] Figure 11 This is a top view of a mass transfer body in an atomizer provided in an embodiment of the present application;

[0046] Figure 12 This is a three-dimensional diagram of an atomizing tube and a mass transfer body in an atomizer provided in an embodiment of the present application;

[0047] Figure 13 This is a top view of an atomizing tube and a mass transfer body in an atomizer provided in an embodiment of the present application;

[0048] Figure 14 This is a three-dimensional diagram of a stopper of an atomizer provided in an embodiment of the present application;

[0049] Figure 15 is a cross-sectional view of a stopper in an atomizer provided in an embodiment of the present application;

[0050] Figure 16 This is a bottom view of a stopper of an atomizer provided in an embodiment of the present application;

[0051] Figure 17 This is the simulation result of the oil conduction rate of the atomizer under the first spacing H provided in the embodiment of the present application;

[0052] Figure 18 This is the simulation result of the oil conduction rate of the atomizer under the first spacing H provided in the embodiment of the present application;

[0053] Figure 19 This is the simulation result of the oil conduction rate of the atomizer under the first spacing H provided in the embodiment of the present application;

[0054] Figure 20 This is the simulation result of the oil conduction rate of the atomizer under the first spacing H provided in the embodiment of the present application;

[0055] Figure 21 This is an exploded view of an atomizer provided in an embodiment of the present application;

[0056] Figure 22 This is another schematic diagram of the internal structure of an atomizer provided in an embodiment of the present application;

[0057] Figure 23 yes Figure 22An enlarged view of a portion of

[0058] Figure 24 Schematic diagram of the structure of an aerosol generating device provided in an embodiment of the present application;

[0059] Figure 25 This is a schematic diagram of the internal structure of an aerosol generating device provided in an embodiment of the present application.

[0060] Reference numerals:

[0061] 100. Atomizer;

[0062] 100a, liquid storage chamber; 100b, atomization channel; 100c, inlet; 100d, outlet; 100e, liquid inlet;

[0063] 110. Housing; 111. First limiting boss; 112. Suction nozzle; 113. Airway portion;

[0064] 120, atomizer core; 121, pin;

[0065] 130, mass transfer body; 130a, main air channel; 130b, ventilation slot;

[0066] 131, body; 131a, atomizing surface; 131b, liquid absorption surface; 131c, first end surface; 131d, second end surface;

[0067] 140, sealing member; 141, first protruding ring; 142, second protruding ring; 143, second limiting boss; 140a, accommodating space; 144, raised portion; 145, end face;

[0068] 150, atomizing tube; 151, first tube end; 152, second tube end;

[0069] C1, central axis;

[0070] 160, base; 160a, seat interior space; 160b, seat hole; 160c, liquid injection hole;

[0071] 170, support member;

[0072] 181. Liquid filling plug; 182. Bottom cover; 183. Cover; 184. Electrode; 185. Oil-absorbing cotton; 186. First sealing ring; 187. Second sealing ring; 188. Suction nozzle plug;

[0073] 10. Aerosol generating device; 200. Host. DETAILED DESCRIPTION

[0074] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only used to illustrate and explain the present application and are not used to limit the present application.

[0075] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0076] In this application, unless otherwise indicated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of a device in actual use or operation, specifically in the drawing directions of the accompanying drawings; whereas "inner" and "outer" refer to the outline of the device. Furthermore, in the description of this application, the term "including" means "including but not limited to." Terms such as first, second, and third are used merely as labels and do not impose numerical requirements or establish a sequence.

[0077] In this application, "and / or" describes the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. A and B can be singular or plural.

[0078] In this application, "at least one" means one or more, and "plurality" means two or more. "One or more", "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, "at least one of a, b, or c", or "at least one of a, b, and c" can all mean: a, b, c, ab (i.e., a and b), ac, bc, or abc, where a, b, and c can be single or plural, respectively.

[0079] The technical solution of this application is as follows:

[0080] First, refer to Figure 1 、 Figure 2 、 Figure 4 and Figure 5As shown, an embodiment of the present application provides an atomizer 100 , comprising: a housing 110 , an atomizing core 120 and a mass transfer body 130 .

[0081] The housing 110 is used to form at least a portion of the liquid storage chamber 100a and the atomization channel 100b of the atomizer 100. It is understood that the liquid storage chamber 100a and the atomization channel 100b can be directly formed by the housing 110, or the liquid storage chamber 100a and the atomization channel 100b are only provided inside the housing 110.

[0082] The atomizing core 120 is arranged in the atomizing channel 100b, and is used to heat the atomizing matrix to generate an aerosol. The aerosol is mixed with the airflow in the atomizing channel 100b and flows out from the outlet 100d of the atomizing channel 100b. The mass transfer body 130 is used to realize the transmission of the atomizing matrix between the liquid storage chamber 100a and the atomizing core 120. The liquid storage chamber 100a transmits the atomizing matrix to the mass transfer body 130 through the flow port. Based on a simple understanding, the flow port is arranged inside the housing 110 as a communication channel between the liquid storage chamber 100a and the mass transfer body 130. Its structure is not limited. It can be composed of a single part or a combination of multiple parts.

[0083] The mass transfer body 130 has an atomizing surface 131 a and a liquid absorbing surface 131 b that are oppositely disposed. The atomizing surface 131 a is used to contact the atomizing core 120 , and at least a portion of the liquid absorbing surface 131 b is used to transfer the atomized matrix to the interior of the body 131 .

[0084] It can be understood that the atomized matrix is ​​transported from the liquid absorption surface 131 b toward the atomization surface 131 a to provide the atomization core 120 with the atomized matrix required for atomization.

[0085] The atomizing surface 131a is surrounded by a main air passage 130a, which extends along a central axis C1 and constitutes at least a portion of the atomizing channel 100b. The aerosol generated by the atomizing core 120 is dispersed in the main air passage 130a and carried away by the airflow in the main air passage 130a.

[0086] The ratio of the area of ​​the liquid suction surface 131b opposite to the flow port to the radial cross-sectional area of ​​the atomizing surface 131a is in the range of 0.6-17.5.

[0087] It is understood that the area of ​​the liquid suction surface 131b facing the flow port is the surface area of ​​the liquid suction surface 131b exposed to the atomized matrix in the flow port. The radial cross-sectional area of ​​the atomizing surface 131a can represent the size of the main airway 130a.

[0088] By adopting the above technical solution, since the air flow rate of the atomizing channel 100b is related to the size of the main air channel 130a, and the transmission rate of the atomized matrix to the mass transfer body 130 is related to the surface area of ​​the atomized matrix exposed to the flow port by the liquid suction surface 131b, the present application limits the ratio of the area of ​​the liquid suction surface 131b facing the flow port to the radial cross-sectional area of ​​the atomizing surface 131a, that is, limits the relationship between the surface area of ​​the atomized matrix exposed to the flow port by the liquid suction surface 131b and the size of the main air channel 130a, so that the transmission rate of the atomized matrix to the mass transfer body 130 matches the atomization rate of the atomizing core 120, thereby improving the problem of oil leakage or fuzzy extraction.

[0089] As an optional solution, the mass transfer body 130 can be made of oil-conducting cotton or ceramic materials.

[0090] In some embodiments, reference Figure 1 、 Figure 2 、 Figure 4 and Figure 5 As shown, the atomizer 100 further includes an atomizing tube 150 .

[0091] The atomizing tube 150 is disposed within the housing 110 to divide the interior space of the housing 110 into a liquid storage chamber 100a and at least a portion of an atomizing channel 100b. Exemplarily, the atomizing tube 150 is configured as a body of revolution about a central axis C1. In a radial direction of the central axis C1, at least a portion of the atomizing channel 100b is located within the atomizing tube 150, and at least a portion of the liquid storage chamber 100a is located between the atomizing tube 150 and the housing 110.

[0092] The atomizing tube 150 has a first tube end 151 and a second tube end 152 that are oppositely disposed, and the first tube end 151 is coupled to the housing 110 .

[0093] The term "combination" in this application may be understood as a detachable connection, an indirect connection, a surface contact, or other methods that may achieve a fixed connection.

[0094] The mass transfer body 130 has a first end surface 131c and a second end surface 131d opposite to each other. At least a portion of the mass transfer body 130 is disposed in the atomizing tube 150 , and the second end surface 131d passes through the second tube end 152 to form a flow port between the second tube end 152 and the second end surface 131d.

[0095] It can be understood that the flow opening is arranged around the mass transfer body 130, so that the portion of the mass transfer body 130 passing through the atomizing tube 150 is completely exposed in the circumferential direction and directly contacts the atomized substrate at the flow opening.

[0096] By adopting such a solution, the portion of the mass transfer body 130 passing through the atomizing tube 150 is exposed in the circumferential direction, effectively increasing the contact area between the mass transfer body 130 and the atomized matrix at the flow outlet, making it easier for the mass transfer body 130 to adsorb the atomized matrix.

[0097] In some embodiments, reference Figure 5 、 Figure 8 and Figure 9 As shown, the axial distance H between the second tube end 152 and the second end surface 131d is less than or equal to the distance L between the end of the atomizer core 120 away from the second end surface 131d and the second end surface 131d. It can be understood that the axial height of the flow port is less than or equal to the axial height of the atomizer core 120.

[0098] By adopting such a solution, it is ensured that the storage amount of the atomizing medium in the mass transfer body 130 located above the atomizing core 120 is smaller than the storage amount of the atomizing medium in the mass transfer body 130 located on the radial side of the atomizing core 120, thereby preventing the atomizing matrix in the mass transfer body 130 from being directly attracted into the atomizing channel 100b due to the pressure change in the main airway 130a, thereby preventing leakage.

[0099] In some embodiments, the axial distance H between the second tube end 152 and the second end surface 131d ranges from 3 to 5 mm. Such parameter settings facilitate uniform adsorption of the atomized matrix by the mass transfer body 130 and continuous liquid supply to the atomizing core 120.

[0100] In some embodiments, reference Figure 10 and Figure 11 As shown, the diameter D of the main airway 130a ranges from 2 to 6 mm. This value is beneficial to the airflow in the main airway 130a, smooth inhalation, and sufficient atomization of the atomized matrix, achieving a better taste.

[0101] By adopting the combination of the value of the diameter D of the main air channel 130a and the value of the axial distance H between the second tube end 152 and the second end surface 131d, the transmission rate of the atomized matrix to the mass transfer body 130 matches the atomization rate of the atomizer core 120, thereby improving the problem of oil leakage or fuzzy extraction.

[0102] Figures 17 to 20 The simulation results of oil conduction rate under different spacing H are shown, where Figure 17 The corresponding spacing H is 1mm, Figure 18 The corresponding spacing H is 3mm, Figure 19 The corresponding spacing H is 5mm, Figure 20 The corresponding spacing H is 7 mm.

[0103] According to the simulation results, when the distance H is less than 3 mm, the transmission rate of the mass transfer body 130 is slow, the liquid supply to the atomizer core 120 is insufficient, and the problem of smoke is likely to occur.

[0104] When the distance H is higher than 5 mm, the transmission rate of the mass transfer body 130 is faster, and the storage capacity of the atomized matrix in the mass transfer body 130 is too large, resulting in larger atomized particles, which affects the user experience.

[0105] Through the above comparison, when the axial distance H between the second tube end 152 and the second end surface 131d is in the range of 3-5 mm, the transmission rate is between 0.3792-3.784 m / s, which can meet the optimal liquid conduction requirements of atomization.

[0106] In some embodiments, reference Figure 5 、 Figure 7 、 Figures 10 to 13 As shown, the mass transfer body 130 further has a ventilation groove 130b.

[0107] Specifically, multiple ventilation grooves 130b are provided, each positioned at different circumferential locations. The ventilation grooves 130b extend parallel to the central axis C1. At least some of the ventilation grooves 130b are formed on the liquid suction surface 131b. At least some of the ventilation channels are located at the same axial position as the flow port. That is, the ventilation channels are connected to the flow port, allowing air to enter the liquid storage chamber 100a through the flow port.

[0108] By adopting such a solution, a ventilation groove 130b is provided on the liquid suction surface 131b of the mass transfer body 130, so that outside air can enter the liquid storage chamber 100a through the ventilation groove 130b, and the air pressure in the liquid storage chamber 100a is adjusted by using the ventilation groove 130b to achieve the air pressure balance of the liquid storage chamber 100a, which is beneficial to the continuous supply of liquid from the liquid storage chamber 100a to the mass transfer body 130, ensuring the transmission rate of the atomized matrix to the liquid guide structure during the atomization process, and avoiding the problem of dry burning.

[0109] At the same time, the ventilation groove 130b can be combined with the flow port to increase the continuous liquid supply rate of the liquid storage chamber 100a to the mass transfer body 130, while reducing the spacing H to reduce the storage amount of the atomizing medium in the mass transfer body 130, thereby reducing the size of the atomized particles.

[0110] In some embodiments, the ventilation groove 130b passes through the first end surface 131c and the second end surface 131d respectively, and the ventilation groove 130b is open in the radial direction.

[0111] By adopting such a solution, the ventilation duct penetrates the first end face 131c and the second end face 131d, thereby extending the axial area in which outside air can enter the ventilation duct. At the same time, the ventilation groove 130b is opened in the radial direction, thereby preventing the ventilation duct from being filled by the nearby mass transfer body 130 due to the squeezing of external force.

[0112] In some embodiments, reference Figure 3 and Figure 5 As shown, the atomizer core 120 further includes a sealing member 140. The sealing member 140 is disposed between the atomizer tube 150 and the housing 110; optionally, the sealing member 140 is made of silicone or rubber.

[0113] More specifically, the sealing member 140 is interference-fitted with the atomizing tube 150 , and the sealing member 140 is interference-fitted with the housing 110 .

[0114] This solution utilizes an interference fit to assemble the seal 140 and the atomizer tube 150 with the housing 110, thereby enhancing the secureness of the assembly between the atomizer tube 150 and the housing 110. This also eliminates the need for additional support for the second tube end 152 of the atomizer tube 150, thereby forming a flow port. Furthermore, the interference fit ensures a seal between the seal 140 and the housing 110, as well as between the seal 140 and the atomizer tube 150. This simplifies the sealing structure, simplifies the assembly process, and improves assembly efficiency.

[0115] In some embodiments, reference Figure 14 and Figure 15 As shown, the sealing member 140 has a first protruding ring 141 , which is disposed around the outer wall of the sealing member 140 . The first protruding ring 141 seals the assembly gap between the sealing member 140 and the atomizing tube 150 .

[0116] In some embodiments, the sealing member 140 has a second protruding ring 142 , which is disposed around the inner wall of the sealing member 140 . The second protruding ring 142 seals the assembly gap between the sealing member 140 and the housing 110 .

[0117] With this solution, by providing the first convex ring 141 and the second convex ring 142 , when the seal 140 is assembled between the housing 110 and the atomizer tube 150 , the first convex ring 141 and the second convex ring 142 are squeezed and formed, and then fit tightly with the atomizer tube 150 and the housing 110 , achieving a sealing effect. The sealing structure is simple, and the processing and assembly of the seal 140 are facilitated.

[0118] As a preferred solution, refer to Figure 14 and Figure 15As shown, a plurality of first protruding rings 141 are arranged at intervals in the axial direction, thereby forming multiple seals in the axial direction. A plurality of second protruding rings 142 are arranged at intervals in the axial direction, thereby forming multiple seals in the axial direction.

[0119] In the axial direction, the first protruding ring 141 and the second protruding ring 142 are located at the same position and correspond one to one, thereby further improving the sealing effect.

[0120] In some embodiments, reference Figure 3 As shown, there is a gap between at least part of the sealing member 140 and the mass transfer body 130 to form an accommodating space 140 a.

[0121] With this solution, by providing the storage space 140a, when the atomizer 100 is inverted, the atomized matrix leaking from the mass transfer body 130 can be temporarily stored in the storage space 140a, preventing the atomized matrix from entering the atomization channel 100b and flowing out of the outlet 100d of the atomization channel 100b. Furthermore, the atomized matrix stored in the storage space 140a can flow back to the flow outlet along the ventilation groove 130b, preventing the atomized matrix from being stored too much near the storage space 140a and leaking into the main airway 130a.

[0122] In some embodiments, reference Figure 5 、 Figure 6 、 Figures 15 to 17 As shown, the seal 140 has a raised portion 144 .

[0123] Specifically, a plurality of raised portions 144 are provided, which are disposed at one end of the seal 140 close to the mass transfer body 130 and respectively abut against the mass transfer body 130; the accommodating space 140a at least includes the gaps between adjacent raised portions 144, and the accommodating space 140a is surrounded by the seal 140, the mass transfer body 130, the atomizing tube 150 and a portion of the shell 110.

[0124] With this solution, the accommodating space 140 a is formed by the protrusions 144 arranged at intervals, and the protrusions 144 are reused to position the mass transfer body 130 .

[0125] In some embodiments, reference Figure 17 As shown, a radial width W1 of the protrusion 144 is smaller than a radial width W2 of a side end 145 of the sealing member 140 close to the mass transfer body 130 .

[0126] By adopting such a solution, the gaps between all adjacent protrusions 144 can be communicated with each other, so that the leaked atomized substrate is evenly distributed in the accommodating space 140 a.

[0127] In some embodiments, reference Figure 1 、 Figure 3 、 Figure 15 and Figure 16 As shown, the housing 110 has a first limiting boss 111 , and the seal 140 axially abuts against the first limiting boss 111 ; the seal 140 has a second limiting boss 143 , and the first tube end 151 of the atomizing tube 150 axially abuts against the second limiting boss 143 .

[0128] With this solution, the first limiting boss 111 and the second limiting boss 143 are provided to achieve positioning of the sealing member 140 and the atomizing tube 150 relative to the housing 110 , thereby facilitating assembly of the sealing member 140 and the atomizing tube 150 .

[0129] In some embodiments, reference Figure 1 and Figure 3 As shown, the housing 110 has or is connected with: a suction nozzle 112 .

[0130] Specifically, the suction nozzle 112 at least forms the outlet 100 d of the atomization channel 100 b , and the sealing member 140 is at least partially disposed between the suction nozzle 112 and the atomization tube 150 .

[0131] Exemplarily, the nozzle 112 is further formed with an airway portion 113 extending into the interior of the housing 110 , so that the nozzle 112 can constitute a portion of the atomization channel 100 b and the outlet 100 d , and the first tube end 151 of the atomization tube 150 is mounted to the airway portion 113 through the seal 140 .

[0132] By adopting such a solution, by installing the atomizing tube 150 to the suction nozzle 112 , automated assembly of the atomizing tube 150 and the sealing member 140 and the like is facilitated.

[0133] As a preferred solution, the nozzle 112 is integrally formed with the housing 110 to simplify the components of the atomizer 100. The housing 110 can be made of a transparent or translucent material to facilitate observation of the remaining amount and color change of the atomized matrix in the atomizer 100.

[0134] In some embodiments, reference Figure 21 As shown, the atomizer 100 further includes a mouthpiece plug 188. The mouthpiece plug 188 is at least partially inserted into the mouthpiece 112.

[0135] In some embodiments, the nozzle 112 is formed with two airway portions 113 , and accordingly, the atomization tube 150 and the atomization core 120 are each provided in two groups to improve atomization efficiency.

[0136] In some embodiments, reference Figure 1 、 Figure 2 、 Figures 21 to 23 As shown, the atomizer 100 further includes: a base 160 , a liquid filling plug 181 , a bottom cover 182 and a cover 183 .

[0137] Specifically, the base 160 is mounted on the end of the housing 110 away from the nozzle 112 and is used to at least seal the liquid storage chamber 100a. The atomizer core 120 is mounted to the base 160 via a support 170, securing the atomizer core 120 to the base 160. A flow port is formed between the atomizer tube 150 and the base 160.

[0138] The base 160 is formed with an inner space 160a, a seat hole 160b and an injection hole 160c. The seat hole 160b is arranged axially and is connected to the inner space 160a. The seat hole 160b at least constitutes the entrance 100c of the atomization channel 100b and a part of the atomization channel 100b. The injection hole 160c is connected to the liquid storage chamber 100a and is used to inject the atomized matrix into the liquid storage chamber 100a. The injection plug 181 is at least partially inserted into the injection hole 160c to block the injection hole 160c. The bottom cover 182 is provided on the base 160 to close the inner space 160a. The cover 183 covers the side of the bottom cover 182 away from the base 160 and part of the base 160 and the housing 110, and is used to cover the specific installation gap between the bottom cover 182, the base 160 and the housing 110 to improve the aesthetics. Specifically, the cover 183 is an iron shell structure.

[0139] In some embodiments, reference Figure 1 、 Figure 2 、 Figures 21 to 23 As shown, the atomizer 100 further includes an electrode 184 . The electrode 184 is fixed to the bottom cover 182 and at least partially passes through the bottom cover 182 and extends into the inner space 160 a of the seat. The pin 121 of the atomizer core 120 is connected to the electrode 184 .

[0140] In some embodiments, the atomizer 100 further includes: oil-absorbing cotton 185; the oil-absorbing cotton 185 is arranged in the seat space and corresponds to the seat hole 160b, and is used to absorb part of the atomized matrix droplets dropped from the atomizing channel 100b, and can also filter the airflow entering the seat hole 160b.

[0141] In some embodiments, reference Figure 1 、 Figure 2 、 Figures 21 to 23 As shown, the atomizer 100 further includes a first sealing ring 186 and a second sealing ring 187. The first sealing ring 186 is disposed between the base 160 and the housing 110 to seal the gap therebetween. The second sealing ring 187 is disposed between the bottom cover 182 and the base 160 to seal the gap therebetween.

[0142] Secondly, refer to Figure 24 and Figure 25As shown, an embodiment of the present application further provides an aerosol generating device 10, comprising a host 200 and the atomizer 100 as described above.

[0143] Specifically, a control component and a power supply component can be set in the host 200. When the atomizer 100 is connected to the host 200, the power supply component can provide electrical energy to the atomizer core 120 of the atomizer 100, so that the atomizer core 120 generates heat. The specific way in which the atomizer core 120 generates heat depends on the type of atomizer core 120. For example, when the atomizer core 120 includes a structure such as a heating wire, current is directly provided to the atomizer core 120, so that the heating wire heats up. When the atomizer core 120 is a conductor, a changing magnetic field can be provided to the atomizer core 120 to stimulate the atomizer core 120 to generate eddy current to generate heat.

[0144] The control assembly in the main unit 200 may also be provided with a microphone. When the atomizer 100 and the main unit 200 are connected, the microphone can communicate with the atomization channel 100b, so that the microphone can detect the gas flow in the atomization channel 100b, thereby controlling the power supply assembly to provide the mist core with electrical power adapted to the gas flow in the atomization channel 100b.

[0145] The above is a detailed introduction to the atomizer and electronic atomization device provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for those skilled in the art, based on the ideas of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. An atomizer, characterized in that: include: A housing, used to form at least a portion of the liquid storage chamber and the atomization channel of the atomizer; Atomizer core, used to heat the atomization matrix; A mass transfer body, used to transfer the atomized matrix between the liquid storage chamber and the atomizing core, wherein the liquid storage chamber transfers the atomized matrix to the mass transfer body through the flow port; Wherein, the mass transfer body has an atomizing surface and a liquid absorbing surface arranged opposite to each other; A main air passage is provided around the atomizing surface, the main air passage extends along a central axis, and the main air passage constitutes at least a part of the atomizing channel; The ratio of the area of ​​the liquid suction surface opposite to the flow port to the radial cross-sectional area of ​​the atomizing surface is in the range of 0.6-17.

5.

2. The atomizer according to claim 1, characterized in that: The atomizer further comprises: an atomizing tube, disposed inside the housing to divide the interior space of the housing into at least a portion of a liquid storage chamber and an atomizing channel; The atomizing tube has a first tube end and a second tube end that are oppositely disposed, and the first tube end is coupled to the housing; The mass transfer body has a first end face and a second end face that are oppositely arranged; at least a portion of the mass transfer body is arranged in the atomizing tube, and the second end face passes through the second tube end to form the flow port between the second tube end and the second end face.

3. The atomizer according to claim 2, characterized in that: The axial distance between the second tube end and the second end surface is less than or equal to the distance between the end of the atomizer core away from the second end surface and the second end surface.

4. The atomizer according to claim 2, characterized in that: The atomizer further comprises: a base fixedly connected to the housing; Wherein, the flow port is located between the base and the second pipe end.

5. The atomizer according to claim 2, characterized in that: The distance between the second pipe end and the second end face in the axial direction ranges from 3 to 5 mm.

6. The atomizer according to claim 2, characterized in that: The diameter of the main airway ranges from 2 to 6 mm.

7. The atomizer according to any one of claims 2 to 6, characterized in that: The mass transfer body also has: Multiple ventilation slots are arranged at different circumferential positions; Wherein, the ventilation groove extends in a direction parallel to the central axis; at least a portion of the ventilation groove is formed on the liquid suction surface.

8. The atomizer according to claim 7, characterized in that: The ventilation grooves respectively penetrate the first end surface and the second end surface, and are open in the radial direction.

9. The atomizer according to claim 7, characterized in that: The atomizer core also includes: a sealing member, disposed between the atomizing tube and the housing; There is a distance between at least part of the sealing element and the mass transfer body to form an accommodating space.

10. An aerosol generating device, characterized in that: The invention comprises an atomizer according to any one of claims 1 to 9.

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