Atomizer and Electronic Atomization Device

Priority is claimed to Chinese Patent Application No. 202421244030.2, filed on May 31, 2024, the entire disclosure of which is hereby incorporated by reference herein.

This application relates to the field of atomization technologies, and in particular, to an atomizer and an electronic atomization device.

An atomizer generally includes an atomization core and a liquid storage cavity. The atomization core is in fluid communication with the liquid storage cavity. The atomization core heats and atomizes an aerosol-forming material in the liquid storage cavity when energized, to generate aerosols to be inhaled by a user through a suction nozzle.

Currently, a high-power atomization core generates a relatively large amount of aerosols, which easily form a large amount of condensates in an airflow channel. As a result, a user easily inhales the condensates into a mouth during smoking or the condensates flow out of the suction nozzle when the atomizer is inverted during smoking, resulting in a problem of a liquid leakage.

In an embodiment, the present invention provides an atomizer, comprising: a housing having a liquid storage space and a gas flow path therein; a liquid storage member arranged in the liquid storage space; an atomization core arranged in the housing and in fluid communication with the liquid storage member and the gas flow path; a first sealing member arranged on a side of the liquid storage member; and a first liquid absorbing member having an air outlet hole, the air outlet hole being a part of the gas flow path, wherein the first sealing member is provided with at least one back-suction channel, and wherein the back-suction channel is in fluid communication with the liquid storage member and the first liquid absorbing member.

In an embodiment, the present invention provides an atomizer and an electronic atomization device, to resolve a problem in the prior art that a high-power atomization core has a large atomization amount and therefore condensates cannot be sucked back in time and flow out through a suction nozzle.

In an embodiment, the present invention provides an atomizer, including:

The first sealing member is provided with at least one back-suction channel, and the back-suction channel is in fluid communication with the liquid storage member and the first liquid absorbing member.

The gas flow path includes an air outlet channel and an airflow channel, the atomization core is arranged in the airflow channel, and the air outlet channel is located downstream from the atomization core.

The first sealing member is arranged on a side of the liquid storage member close to the air outlet channel, and has a first vent hole in communication with the airflow channel, the first vent hole is a part of the gas flow path, the first liquid absorbing member is arranged on a surface of the first sealing member away from the liquid storage member, and the air outlet hole is in communication with the air outlet channel and the first vent hole.

The back-suction channel includes a first back-suction groove, a communication groove, and a second back-suction groove that are in communication in sequence, the first back-suction groove is arranged on a surface of the first sealing member close to the first liquid absorbing member, the second back-suction groove is arranged on a surface of the first sealing member close to the liquid storage member, and the communication groove is arranged on a side wall of the first vent hole.

The surface of the first sealing member away from the liquid storage member is further provided with at least one third back-suction groove, the third back-suction groove is in communication with the at least one first back-suction groove, and the third back-suction groove is provided around the first vent hole; and/or

the surface of the first sealing member close to the liquid storage member is further provided with at least one fourth back-suction groove, the fourth back-suction groove is in communication with the at least one second back-suction groove, and the fourth back-suction groove being provided around the first vent hole; and/or

The width of at least one of the first back-suction groove, the communication groove, and the second back-suction groove is in a range of 0.1-2 mm and the depth thereof is in a range of 0.1-2 mm.

The diameter of the airflow channel is greater than the diameter of the air outlet channel.

The diameter of the first vent hole gradually decreases in a direction from the liquid storage member to the first liquid absorbing member.

The atomizer further includes:

A surface of the second sealing member close to the liquid storage member has at least one sixth back-suction groove, and/or a surface of the second sealing member away from the liquid storage member has at least one seventh back-suction groove.

A liquid guide rate of the liquid storage member is greater than a liquid guide rate of the first liquid absorbing member; and/or a proportion of a liquid injection amount of the liquid storage member to a total amount of an aerosol-forming material allowed to be accommodated in a liquid storage member is less than 75%.

In order to resolve the foregoing technical problem, a technical solution adopted in this application is as follows: An electronic atomization device is provided, including:

The power of the atomization core of the atomizer is in a range of 14-30 W; and/or

Beneficial effects of this application are as follows. Different from the prior art, this application discloses an atomizer and an electronic atomization device. The atomizer includes: a housing, having a liquid storage space and a gas flow path therein; a liquid storage member, arranged in the liquid storage space; an atomization core, arranged in the housing and in fluid communication with both the liquid storage member and the gas flow path; a first sealing member, arranged on a side of the liquid storage member; a first liquid absorbing member, having an air outlet hole, where the air outlet hole is a part of the gas flow path; and the first sealing member is provided with at least one back-suction channel, and the back-suction channel is in fluid communication with the liquid storage member and the first liquid absorbing member. Because the at least one back-suction channel that is in fluid communication with the liquid storage member and the first liquid absorbing member is provided on the first sealing member, partial condensates are absorbed by the first liquid absorbing member, other condensates can be sucked back into the liquid storage member through the back-suction channel, which effectively resolves a problem in the prior art that a high-power atomization core has a large atomization amount and therefore condensates cannot be sucked back in time and flow out of an atomizer through a suction nozzle, thereby improving user experience.

Electronic atomization device; Atomizer; Power supply assembly; Housing; Liquid storage space; Air outlet channel; Liquid storage member; Airflow channel; Atomization core; First sealing member; First vent hole; First back-suction groove; Second back-suction groove; Communication groove; Third back-suction groove; Mounting groove; First liquid absorbing member; Air outlet hole; Vent tube; Second sealing member; Second vent hole; Sixth back-suction groove; Seventh back-suction groove; Eighth back-suction groove; Ninth back-suction groove; Second liquid absorbing member; Avoidance hole; Base; Air inlet; Electrode hole; Electrical connection member; Sealing plug.

Technical solutions in embodiments of this application are clearly and completely described below with reference to drawings in the embodiments of this application. Apparently, the described embodiments are merely some rather than all of the embodiments of this application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of this application without creative efforts fall within the protection scope of this application.

Terms “first”, “second”, and “third” in the embodiments of this application are merely used for description, and shall not be understood as an indication or implication of relative importance or an implicit indication of a quantity of indicated technical features. Therefore, features defined with “first”, “second”, and “third” may explicitly or implicitly include at least one of the features. In the description of this application, “a plurality of” means at least two, such as two or three, unless otherwise definitely and specifically defined. In addition, terms “include”, “have”, and any variant thereof are intended to cover a non-exclusive inclusion. For example, a process, a method, a system, a product, or a device that includes a series of steps or units is not limited to the listed steps or units, and instead, optionally further includes a step or a unit that is not listed, or optionally further includes another step or unit that is intrinsic to the process, the method, the product, or the device.

“An embodiment” mentioned in the specification means that particular features, structures, or characteristics described with reference to the embodiment may be included in at least one embodiment of this application. The phrase appearing at various locations in this specification unnecessarily indicates a same embodiment or an independent or alternative embodiment exclusive to another embodiment. A person skilled in the art explicitly or implicitly understands that the embodiments described in the specification may be combined with other embodiments.

Referring toto,is a schematic structural diagram of an electronic atomization device according to this application,is a schematic sectional diagram of the electronic atomization device provided in, andis a schematic structural diagram of an atomizer of the electronic atomization device provided in.

Referring to, this application provides an electronic atomization device. The electronic atomization devicemay be configured to atomize an aerosol-forming material. The electronic atomization deviceincludes an atomizerand a power supply assembly, and the atomizeris electrically connected to the power supply assembly.

The atomizeris configured to store and atomize an aerosol-forming material to form aerosols that may be inhaled by a user. The atomizermay specifically be applied to different fields such as medical care, cosmetology, and recreational smoking. In a specific embodiment, the atomizermay be applied to an electronic aerosol-generating device, to atomize an aerosol-forming material and generate aerosols for inhalation by a user. The following embodiments are all described by using the recreational smoking as an example.

For a specific structure and functions of the atomizer, reference may be made to a specific structure and functions of an atomizerinvolved in the following embodiments, and same or similar technical effects can be implemented. Details are not described herein.

The power supply assemblyincludes a battery (not marked) and a controller. The battery is configured to provide electric energy for operation of the atomizer, so that the atomizercan atomize the aerosol-forming material to form aerosols. The controller is configured to control the operation of the atomizer. The power supply assemblyfurther includes other elements such as a battery holder and an airflow sensor.

The atomizerand the power supply assemblymay be integrally arranged, or may be detachably connected to each other, which may be designed according to a specific demand. The atomizerand the power supply assemblyprovided in this embodiment are detachably connected to each other.

Referring toto,is a schematic sectional diagram of the atomizer provided in,is a partial schematic enlarged view of an area A of the atomizer provided in,is a schematic structural diagram of a first sealing member of the atomizer provided inat an angle,is a schematic structural diagram of the first sealing member provided inat another angle,is a schematic sectional diagram of the first sealing member provided in, andis a schematic structural diagram of a first liquid absorbing member of the atomizer provided in.

Referring toand, the atomizerincludes a housing, a liquid storage member, an atomization core, a first sealing member, and a first liquid absorbing member. The housinghas a liquid storage spaceand a gas flow path (not marked) therein. The liquid storage memberis arranged in the liquid storage space. Specifically, the liquid storage memberhas pores therein to store an aerosol-forming material. The atomization coreis arranged in the housing, and the atomization coreis in fluid communication with both the liquid storage memberand the gas flow path, so that the aerosol-forming material stored in the liquid storage membercan flow toward the atomization core, for the atomization coreto heat and atomize the aerosol-forming material to generate aerosols when energized. The first sealing memberis arranged on a side of the liquid storage member, the first liquid absorbing memberhas an air outlet hole, and the air outlet holeis a part of the gas flow path. The first scaling memberis provided with at least one back-suction channel (not marked), and the back-suction channel is in fluid communication with the liquid storage memberand the first liquid absorbing member.

It may be understood that, because the first sealing memberis arranged on a side of the liquid storage member, the back-suction channel is provided on the first sealing member, and the back-suction channel brings the liquid storage memberinto fluid communication with the first liquid absorbing member, partial condensates accumulating at the air outlet holecan be absorbed by the first liquid absorbing member, which reduces a risk that the condensates flow out of the atomizer. In addition, when the first liquid absorbing memberis full of absorbed condensates and therefore can no longer absorb condensates, or when the first liquid absorbing membercannot absorb condensates as quickly as condensates are generated from condensation of aerosols formed by the atomization core, the back-suction channel on the first sealing membercan cause the condensates absorbed in the first liquid absorbing memberand the condensates accumulating at the air outlet holeto be directly sucked back to the liquid storage memberthrough the back-suction channel. In this way, a problem of a liquid leakage caused by condensates flowing out of the atomizerwhen the atomizeris inverted as a result of the high-power atomization corehaving a large atomization amount and therefore condensates failing to be sucked back in time can be effectively resolved, thereby preventing a user from inhaling the condensates during smoking.

Specifically, in some implementations, the gas flow path includes an air outlet channeland an airflow channel. The first sealing memberis arranged on a side of the liquid storage memberclose to the air outlet channel, and has a first vent holethat is in communication with the airflow channel. The first vent holeis a part of the gas flow path. The first liquid absorbing memberis arranged on a surface of the first sealing memberaway from the liquid storage member, and has an air outlet hole. The air outlet holeis in communication with the air outlet channeland the first vent hole. In other words, the air outlet channelis provided spaced apart from the airflow channeland the first vent hole, and the air outlet channelis in communication with the airflow channelthrough the air outlet holeand the first vent holein sequence.

In a specific implementation, the air outlet channelis formed on the housing, the airflow channelis formed in the liquid storage member, the atomization coreis arranged in the airflow channelformed in the liquid storage member, and the air outlet channelis located downstream from the atomization core. The airflow channel, the first vent hole, the air outlet hole, and the air outlet channelare sequentially in communication with each other to form a part of the gas flow path. In other implementations, the airflow channelmay not be provided in the liquid storage member, An airflow channelindependent of the liquid storage membermay be provided, provided that the airflow channelcan be in communication with the air outlet channel, which may be designed according to a demand.

In some implementations, referring toto, the back-suction channel includes a first back-suction groove, a communication groove, and a second back-suction groovethat are in communication in sequence. Specifically, a surface of the first sealing memberclose to the first liquid absorbing memberhas at least one first back-suction groove, a surface of the first sealing memberclose to the liquid storage memberhas at least one second back-suction groove, and a side wall of the first vent holehas at least one communication groovein communication with the first back-suction grooveand the second back-suction groove.

Specifically, because the at least one first back-suction grooveis provided on the surface of the first sealing memberclose to the first liquid absorbing member, the at least one second back-suction grooveis provided on the surface of the first sealing memberaway from the first liquid absorbing member, that is, a surface close to the liquid storage member, the at least one communication grooveis provided on the side wall of the first vent hole, and the communication groovebrings the first back-suction grooveinto communication with the second back-suction grooveto form the back-suction channel, when the first liquid absorbing memberfull of absorbed condensates and therefore can no longer absorb condensates, or when the first liquid absorbing membercannot absorb condensates as quickly as condensates are generated from condensation of aerosols formed by the atomization core, the back-suction groove structures in communication with each other can cause the condensates in the first liquid absorbing memberand condensates accumulating at the first vent holeor in the air outlet channelto be directly sucked back to the liquid storage memberthrough the first back-suction groove, the communication groove, and the second back-suction groove. In this way, a problem of a liquid leakage caused by condensates flowing out of the atomizerthrough the air outlet channelwhen the atomizeris inverted as a result of the high-power atomization corehaving a large atomization amount and therefore condensates failing to be sucked back in time can be effectively resolved, thereby preventing a user from inhaling the condensates at a port of the air outlet channelduring smoking, effectively preventing bubbling caused by excessive stacking of condensates in the air outlet channel, the first vent hole, and the airflow channelof the atomizer, and improving user experience.

In some other implementations, the back-suction channel may be provided as a through hole that extends through the first sealing member, and the through hole is provided spaced apart from the first vent holeof the first sealing member. Because the at least one through hole that extends through the first sealing memberis provided on the first sealing member, the first liquid absorbing membercan be brought into fluid communication with the liquid storage memberdirectly the through hole, to suck the condensates absorbed by the first liquid absorbing memberback into the liquid storage member, thereby avoiding a liquid leakage as a result of the condensates flowing out of the atomizerthrough the air outlet channelwhen the first liquid absorbing memberis full of absorbed condensates.

In some other implementations, the back-suction channel may include only the first back-suction grooveand the communication groovethat are in communication with each other, that is, the back-suction channel may not include the second back-suction groove. The first back-suction grooveis provided on the surface of the first sealing memberclose to the first liquid absorbing member, the communication grooveis provided on the side wall of the first vent hole, and an end of the communication grooveaway from the first back-suction grooveis in fluid communication with the liquid storage member, so as to bring the first liquid absorbing memberinto fluid communication with the liquid storage memberthrough the back-suction channel, so as to suck the condensates absorbed by the first liquid absorbing memberback into the liquid storage member.

In some other implementations, the back-suction channel may include only the communication grooveand the second back-suction groovethat are in communication with each other. The second back-suction grooveis provided on the surface of the first sealing memberclose to the liquid storage member, the communication grooveis provided on the side wall of the first vent hole, and an end of the communication grooveaway from the second back-suction grooveis in fluid communication with the first liquid absorbing member, so as to suck the condensates absorbed by the first liquid absorbing memberback into the liquid storage member.

In some other implementations, the back-suction channel may include only the communication groove. The communication grooveis provided on the side wall of the first vent hole, one end of the communication grooveis in fluid communication with the liquid storage member, and an other end is in fluid communication with the first liquid absorbing member, so as to suck the condensates absorbed by the first liquid absorbing memberback into the liquid storage member.

The back-suction channel may be provided in any of the above manners, or may be provided in other manners, provided that the first liquid absorbing membercan be brought into fluid communication with the liquid storage memberthrough the back-suction channel, so as to suck the condensates absorbed by the first liquid absorbing memberback into the liquid storage member. The back-suction groove may be designed according to a demand, which is not limited in this application.

Specifically, in an embodiment, the power of the atomization coreof the atomizerof the electronic atomization deviceis in a range of 14-30 W, and an atomization amount of the atomization corefor a single puff of a user is in a range of 10-24 mg/puff. It may be understood that, because the power of the atomization coreis set to the foregoing range, and the atomization amount for a single puff of a user is set to the foregoing range, the power of the atomization coreis relatively large, and an amount of aerosols generated from atomization per unit time is relatively large. Therefore, the first liquid absorbing memberand the first back-suction groove, the communication groove, and the second back-suction grooveof the first sealing memberof the atomizerof this application have a better back-suction effect and higher efficiency, and the structure of this application is more superior.

Referring toto, in some implementations, the diameter of the airflow channelof the atomizeris greater than the diameter of the air outlet channel, and the diameter of the first vent holeof the first sealing membergradually decreases in a direction from the liquid storage memberto the first liquid absorbing member. The diameter of an end of the first vent holeclose to the airflow channelis greater than the diameter of an end close to the air outlet channel. Specifically, the diameter of an end of the first vent holeclose to the air outlet channelis equal to the diameter of the air outlet channel, and the diameter of the end of the first vent holeclose to the airflow channelis greater than or equal to the diameter of the airflow channel. Preferably, the diameter of the end of the first vent holeclose to the airflow channelis set to be greater than the diameter of the airflow channel, to ensure better communication among the first back-suction groove, the communication groove, and the second back-suction groove. Therefore, the condensates accumulating at the air outlet channeland the first vent holecan more smoothly flow into the liquid storage memberthrough the first back-suction groove, the communication groove, and the second back-suction groove, thereby avoiding a problem that the condensates cannot be sucked back into the liquid storage memberas a result of the condensates directly flowing into the airflow channeldirectly through the first vent holewithout passing through the second back-suction groove.

Specifically, as shown in, the atomizerfurther includes a vent tube. The vent tubeis provided in the liquid storage member, and an inner wall surface of the vent tubedefines and forms the airflow channel. Specifically, as shown in, the vent tubeis a round tube. In other implementations, the vent tubemay be set to any other shape. A liquid storage spaceis defined between an outer wall surface of the vent tubeand an inner wall surface of the housing, and the liquid storage memberis arranged in the liquid storage space.

The atomization coreincludes a liquid guide member (not marked) and a heating element (not marked). The liquid guide member is in fluid communication with the liquid storage member. The heating element is arranged on an atomization surface (not marked) of the liquid guide member. The heating element is electrically connected to the power supply assemblyof the electronic atomization device, to heat and atomize the aerosol-forming material in the liquid guide member to generate aerosols under a heating condition. An atomization cavity (not marked) is defined in the liquid guide member of the atomization core, and the atomization cavity is in communication with the airflow channel. The heating element may be any element such as a heating mesh, a heating film, or a heating wire. The liquid guide member may be a porous structural member such as liquid guide cotton, porous ceramic, or porous glass.

The atomization coremay be arranged in the vent tube, and the atomization coreis in fluid communication with the liquid storage member. Specifically, a liquid inlet hole (not marked) may be provided on a tube wall of the vent tube, so that the liquid guide member of the atomization coreis in fluid communication with the liquid storage member, and the atomization cavity of the atomization coreis in communication with the airflow channel. Alternatively, the atomization coremay be directly arranged in the liquid storage member, so that the atomization cavity of the atomization coreis in communication with the airflow channel.

In some implementations, the atomization coremay include two heating elements arranged spaced apart. For example, the atomization coreincludes two heating meshes. The two heating meshes are arranged spaced apart in an extension direction of the airflow channel, and the two heating meshes are respectively electrically connected to the power supply assembly, so as to form the high-power atomization core, thereby improving heating efficiency and atomization efficiency of the atomization core.