ELECTRONIC ATOMIZATION DEVICE AND ATOMIZER THEREOF

Abstract

An atomizer includes: a liquid storage room for storing liquid aerosol generation substrate; an atomization main body having an atomization assembly, the atomization assembly including a liquid absorbing surface in liquid guide communication with the liquid storage room; and at least one vent channel having a vent tube provided on an inner wall surface of the liquid storage room, the vent tube including a vent opening that is away from the inner wall surface and/or the liquid absorbing surface.

Description

FIELD

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

BACKGROUND

An electronic atomization device generally includes a liquid storage room, a porous heating element, a seal member, and an airflow channel. The seal member is used for preventing liquid in the liquid storage room from flowing outside the heating element. During heating for atomization, the liquid in the liquid storage room decreases, the internal air space increases, the air pressure decreases, and the resistance to the liquid against flowing to the heating element increases, which easily leads to insufficient liquid supply and dry heating. To solve this problem, related technologies choose to add a vent structure that communicates the ambient air and the liquid storage room. Driven by the pressure difference, the ambient air replenishes air to the liquid storage room through the vent structure to balance the air pressure. At present, the vent opening is generally provided in the bottom wall or surrounding wall of the liquid storage room, but bubbles are prone to adhere to the wall surface around the vent opening, causing bubble jamming and hindering ventilation.

SUMMARY

In an embodiment, the present invention provides an atomizer, comprising: a liquid storage room configured to store liquid aerosol generation substrate; an atomization main body comprising an atomization assembly, the atomization assembly comprising a liquid absorbing surface in liquid guide communication with the liquid storage room; and at least one vent channel comprising a vent tube provided on an inner wall surface of the liquid storage room, the vent tube comprising a vent opening that is away from the inner wall surface and/or the liquid absorbing surface.

BRIEF DESCRIPTION OF THE DRAWINGS

Subject matter of the present disclosure will be described in even greater detail below based on the exemplary figures. All features described and/or illustrated herein can be used alone or combined in different combinations. The features and advantages of various embodiments will become apparent by reading the following detailed description with reference to the attached drawings, which illustrate the following:

FIG. 1 illustrates a three-dimensional schematic structural diagram of an electronic atomization device in some embodiments of the present invention.

FIG. 2 illustrates a three-dimensional schematic exploded structural diagram of the electronic atomization device in FIG. 1.

FIG. 3 illustrates a B-B sectional schematic structural diagram of an atomizer of the electronic atomization device in FIG. 1.

FIG. 4 illustrates an A-A sectional schematic structural diagram of the atomizer of the electronic atomization device in FIG. 1.

FIG. 5 illustrates a three-dimensional schematic exploded structural diagram of the atomizer in FIG. 1.

FIG. 6 illustrates a longitudinal sectional schematic structural diagram of the atomizer in FIG. 1 in an exploded state.

FIG. 7 illustrates a three-dimensional schematic exploded structural diagram of an atomization main body in FIG. 5.

FIG. 8 illustrates a longitudinal sectional schematic structural diagram of the atomization main body in FIG. 5 in an exploded state.

FIG. 9 illustrates a three-dimensional schematic exploded structural diagram of the atomization main body in FIG. 5 from another perspective.

FIG. 10 illustrates a three-dimensional schematic exploded structural diagram of an atomization assembly in FIG. 9.

DETAILED DESCRIPTION

In an embodiment, the present invention provides an improved electronic atomization device and an atomizer thereof.

To achieve the above purpose, the present invention provides an atomizer, which includes:

• • a liquid storage room, used for storing liquid aerosol generation substrate;
  • an atomization main body, where the atomization main body includes an atomization assembly, and the atomization assembly includes a liquid absorbing surface in liquid guide communication with the liquid storage room; and
  • at least one vent channel, where the at least one vent channel includes a vent tube provided on the inner wall surface of the liquid storage room, the vent tube includes a vent opening, and the vent opening is away from the inner wall surface and/or the liquid absorbing surface.

In some embodiments, the atomizer includes a longitudinal axis, and the liquid absorbing surface is approximately perpendicular to the longitudinal axis.

In some embodiments, the inner wall surface includes a surface adjacent to the liquid absorbing surface, and the vent tube is vertically provided on the surface.

In some embodiments, the surface is a flat surface, and the vertical distance between the vent opening and the surface is smaller than the vertical distance between the vent opening and the liquid absorbing surface.

In some embodiments, the length direction of the vent tube is parallel to the longitudinal axis.

In some embodiments, central through holes of the vent tube are provided as stepped holes, and the pore size of each hole segment decreases in the direction away from the inner wall surface.

In some embodiments, the central through holes include a first hole segment close to the inner wall surface and a second hole segment away from the inner wall surface. The pore size of the first hole segment is 0.5-1 mm, and the pore size of the second hole segment is 0.2-0.6 mm.

In some embodiments, the length of the vent tube is 0.8-1.5 mm.

In some embodiments, the liquid storage room includes a convergence portion formed in the atomization main body, and the vent tube is vertically provided on the inner wall surface of the convergence portion.

In some embodiments, the atomization main body includes a lower seat. The lower seat includes a first support portion and a second support portion spaced apart. The atomization assembly is transversely mounted on the first support portion and the second support portion, and an atomization cavity is formed below the atomization assembly. The atomization assembly includes an atomization surface opposite to the liquid absorbing surface, and the atomization surface is in air guide communication with the atomization cavity.

In some embodiments, the at least one vent channel includes a first vent groove formed in the top surface of the first support portion or the second support portion and extending transversely, and a second vent groove formed in the inner side surface of the first support portion or the second support portion and extending longitudinally. The first vent groove is communicated with the second vent groove. The atomization assembly covers the first vent groove, and the end of the first vent groove away from the inner side surface is exposed outside the atomization assembly.

In some embodiments, the atomization main body includes an upper seat. The upper seat includes a holding portion pressing against the atomization assembly and an outer enclosing frame provided on the holding portion. The at least one vent channel includes a vent hole vertically running through the holding portion and communicated with the vent opening, a third vent groove formed in the inner wall surface of the outer enclosing frame and extending longitudinally downwards, and a fourth vent groove formed in the lower surface of the holding portion and communicating the vent hole with the third vent groove. The lower end of the third vent groove is communicated with the end of the first vent groove away from the inner side surface.

In some embodiments, the atomization assembly includes a sheet-like heating element and a soft seal member bonded to the periphery of the heating element. The vent hole faces directly to the seal member, and the outer enclosing frame surrounds the periphery of the seal member.

In some embodiments, the heating element includes a sheet-like substrate, and the substrate is made of glass with a micropore array, dense ceramics with a micropore array, or sheet-like porous ceramics.

In some embodiments, the holding portion is provided with a liquid flowing opening vertically running through the holding portion and corresponding to the liquid absorbing surface, and the lower surface of the holding portion further includes an inner enclosing frame surrounding the liquid flowing opening. The inner enclosing frame abuts against the inner side of the seal member.

In some embodiments, the vent tube is provided on the holding portion.

In some embodiments, the at least one vent channel includes two vent channels. Each vent channel includes a vent tube, and the vent tubes of the two vent channels are respectively provided on the two opposite sides of the liquid absorbing surface.

The present invention further provides an electronic atomization device, which includes the atomizer of any one above.

Beneficial Effects

The present invention has the following beneficial effects: by providing the vent opening at the position away from the inner wall surface of the liquid storage room and the liquid absorbing surface, bubbles can be prevented from adhering to the inner wall surface of the liquid storage room and/or the liquid absorbing surface during ventilation.

In order to describe the present invention more clearly, the present invention will be further described below with reference to the accompanying drawings.

It is to be understood that the terms “front”, “back”, “left”, “right”, “up”, “down”, “first”, “second” and the like are only intended to facilitate the description of the technical solution of the present invention, rather than to indicate that the device or element referred to must have special differences, and thus cannot be understood as limitations on the present invention. It is to be understood that when a member is considered to be “connected” to another member, it may be directly connected to another member or there may be an intermediate member at the same time. Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art of the present invention. The terms used in the description of the present invention are only for the purpose of describing specific embodiments, instead of limiting the present invention.

FIG. 1 and FIG. 2 illustrate an electronic atomization device in some embodiments of the present invention. The electronic atomization device may be of a hand-held rod-shaped structure for a user to inhale aerosol. As illustrated, the electronic atomization device may include an atomizer 1 and a power supply device 2 compatible with the atomizer 1. The atomizer 1 may be used for storing and heating for atomizing a liquid aerosol generation substrate such as liquid medicine, and guiding out the aerosol. The power supply device 2 may be used for supplying power to the atomizer 1. In some embodiments, both the atomizer 1 and the power supply device 2 may be roughly elliptically cylindrical in shape, and the two are mechanically and electrically connected together along the axial direction. In some embodiments, the atomizer 1 and the power supply device 2 may be detachably connected together by magnetic attraction. It is to be understood that the atomizer 1 and the power supply device 2 are not limited to being elliptically cylindrical, but may also be cylindrical in shape with a circular, runway-shaped, or irregular cross-section, or non-cylindrical.

FIG. 3 to FIG. 6 illustrate an atomizer 1 in some embodiments of the present invention. The atomizer 1 may include an atomization main body 10 and a housing 20 sleeved to the atomization main body 10 along the longitudinal axis X. The atomization main body 10 and the housing 20 together define a liquid storage room for storing the liquid aerosol generation substrate. The atomization main body 10 is used for heating the liquid aerosol generation substrate in the liquid storage room to generate aerosol. The housing 20 is used for protecting the atomization main body 10 and guiding out the mixture of the aerosol and air. In some embodiments, the liquid storage room may include a liquid storage tank 214 formed between the outer wall surface of the atomization main body 10 and the inner wall surface of the housing 20, and a liquid flowing channel formed in the atomization main body 10. The liquid storage tank 214 is used for storing the liquid aerosol generation substrate. The liquid flowing channel is used for delivering the liquid in the liquid storage tank 214 to the atomization assembly 13.

In some embodiments, the housing 20 may include a flat shell 21 with an opening 212 in one end and an air outlet hole 210 in the other end, and an air guide tube 22 with one end communicated with the air outlet hole 210 and the other end extending towards the opening 212 of the shell 21. The tail end of the air guide tube 22 is inserted into the atomization main body 10 to guide out the aerosol generated during the operation of the atomization main body 10. The annular liquid storage tank 214 is defined between the inner wall surface of the shell 21 and the outer wall surface of the air guide tube 22. The opening 212 allows the atomization main body 10 to be inserted into the housing 20. The inner side of the open end of the shell 21 may also be provided with a fastening structure 216 to be fastened with the atomization main body 10 inserted into the open end of the shell 21.

Referring to FIG. 7 to FIG. 9 together, in some embodiments, the front side and the rear side, as well as the left side and the right side, of the atomization main body 10 may be symmetrical, so as to facilitate forming and subsequent assembling. In some embodiments, the atomization main body 10 may include a lower seat 11, an upper seat 12 connected to the lower seat 11 through a fastener, an atomization assembly 13 sandwiched between the lower seat 11 and the upper seat 12, and a pair of electrodes 14 provided in the lower seat 11 in a spaced and penetrating manner and electrically connected to the atomization assembly 13 respectively. It is to be understood that the atomization main body 10 is not limited to a symmetrical structure, and an asymmetric structure may also be applied. In some embodiments, the atomization assembly 13 may be provided horizontally, that is, it is provided in a plane perpendicular to the longitudinal axis X of the atomization main body 10.

In some embodiments, the lower seat 11 may be integrally formed using a hard plastic material. Preferably, the front side and the rear side, as well as the left side and the right side thereof, are symmetrical, so as to facilitate manufacturing and subsequent assembling. In some embodiments, the lower seat 11 may include a base 111 that is roughly elliptical in shape, a first support arm 112 vertically provided at the first end in the longitudinal direction of the top surface of the base 111, and a second support arm 113 vertically provided at the second end of the top surface of the base 111. The first support arm 112 and the second support arm 113 together hold the atomization assembly 13 from the lower side of the atomization assembly 13, forming a lower side holding portion (a second holding portion) of the atomization assembly 13. A gap is provided between the first support arm 112 and the second support arm 113, for an atomization cavity 110 to be formed on the lower side of the atomization assembly 13 when the atomization assembly 13 is transversely mounted on the first support arm 112 and the second support arm 113. The atomization cavity 110 is used for mixing the aerosol atomized by the atomization assembly 13 with the air inhaled from the outside, and taking it away by the airflow.

In some embodiments, the base 111 may include an air inlet channel 1110 located in the middle and vertically running through the base, and a pair of mounting holes 1112 vertically running through the base. The pair of mounting holes 1112 are respectively used for threading the lower ends of the pair of electrodes 14.

Referring to FIG. 7 again, in some embodiments, the first support arm 112 may include a first support portion 1121 and a first abutting portion 1122 extending upwards from the top surface of the first support portion 1121 away from the second support arm 113. The first support portion 1121 is used for supporting one end of the atomization assembly 13. A first clamping hole 1120 is formed in the first abutting portion 1122 to fasten with the upper seat 12.

In some embodiments, the second support arm 113 may include a second support portion 1131 and a second abutting portion 1132 extending upwards from the top surface of the second support portion 1131 away from the first support arm 112. The second support portion 1131 is used for supporting the other end of the atomization assembly 13. A first clamping hole 1130 is formed in the second abutting portion 1132 to fasten with the upper seat 12.

In some embodiments, the first support portion 1121 and the second support portion 1131 may respectively include a pair of first vent grooves 1123 formed in the top surface and extending transversely, and a pair of second vent grooves 1125 formed in the inner side surface and extending longitudinally. The pair of first vent grooves 1123 are respectively communicated with the pair of second vent grooves 1125. The end of each first vent groove 1123 away from the atomization cavity 110 is exposed outside the atomization assembly 13 and is communicated with the lower end of a corresponding third vent groove 1225 of the upper seat 12.

In some embodiments, the upper seat 12 may be integrally formed using a hard plastic material. The front side and the rear side, as well as the left side and the right side thereof, are symmetrical. In some embodiments, the upper seat 12 may include a body portion 121 and a pressing portion 122 provided at the lower part of the body portion 121.

In some embodiments, the body portion 121 may include a pair of liquid flowing openings 1210 and an air outlet channel 1212. The air outlet channel 1212 may be located in the middle of the top of the body portion 121 and provided longitudinally. The pair of liquid flowing openings 1210 may be respectively provided in the two opposite sides of the air outlet channel 1212 and provided longitudinally. In some embodiments, the body portion 121 may further include a convergence portion 1214. The convergence portion 1214 is located below the pair of liquid flowing openings 1210 and is respectively communicated with the pair of liquid flowing openings 1210, for the liquid aerosol generation substrate in the liquid storage tank 214 to be able to flow into the convergence portion 1214 in the direction indicated by the arrow N in FIG. 3. The air outlet channel 1212 is used for communicating the lower end of the air guide tube 22 of the housing 20. The convergence portion 1214 and the pair of liquid flowing openings 1210 together form the liquid flowing channel.

In some embodiments, the body portion 121 may further include a pair of air guide grooves 1216 (as illustrated in FIG. 4). The pair of air guide grooves 1216 are respectively formed in the two opposite outer wall surfaces of the body portion 121 and extend from top to bottom. The pair of air guide grooves 1216 and the shell 21 together define the air guide channel communicating the atomization cavity 110 with the air outlet channel 1212 (the arrow M in FIG. 4 indicates the airflow direction).

In some embodiments, the pressing portion 122 may include an annular holding portion 1220. The holding portion 1220 presses against the upper side of the edge part of the atomization assembly 13, forming an upper-side holding portion (a first holding portion) of the atomization assembly 13, which, together with the lower side holding portion (the first support portion 1121 and the second support portion 1131) of the atomization assembly 13 on the lower seat, clamps and fixes the atomization assembly 13. The middle of the holding portion 1220 includes a liquid flowing opening 1222 vertically running through the holding portion and facing directly to the liquid absorbing surface of the atomization assembly 13. The liquid flowing opening 1222 is communicated with the convergence portion 1214 of the body portion 121 and is located directly below the convergence portion 1214, for the liquid aerosol generation substrate in the convergence portion 1214 to be able to flow to the liquid absorbing surface of the atomization assembly 13. In some embodiments, the liquid flowing opening 1222 may be rectangular in shape and the size is compatible with the liquid absorbing surface of the atomization assembly 13.

In some embodiments, the pressing portion 122 may include an inner enclosing frame 1224 formed on the bottom surface of the holding portion 1220 and surrounding the liquid flowing opening 1222, and an outer enclosing frame 1226 formed on the periphery of the bottom surface of the holding portion 1220. The inner enclosing frame 1224 is used for transversely abutting against the inner side of the seal member 132 of the atomization assembly 13. The outer enclosing frame 1226 is used for transversely abutting against the outer side of the seal member 132.

In some embodiments, the holding portion 1220 may include a pair of vent holes 1221 vertically running through the holding portion. The pair of vent holes 1221 face directly to the seal member 132 of the atomization assembly 13, and communicate the lower side of the holding portion 1220 with the convergence portion 1214 located on the upper side of the holding portion 1220, so as to ventilate the liquid storage room when the liquid pressure in the liquid storage room is too low, thus achieving gas-liquid balance in the liquid storage room. The upper surface of the holding portion 1220 forms the bottom wall surface of the liquid storage room. In some embodiments, a pair of vent tubes 1223 are required to be respectively provided for the pair of vent holes 1221. The pair of vent tubes 1223 are respectively communicated with the pair of vent holes 1221, and the axes of the pair of vent tubes 1223 are perpendicular to the liquid absorbing surface of the heating element 131, for the vent openings 1229 in the tail ends of the vent tubes 1223 to protrude a certain distance from the upper surface of the holding portion 1220 (i.e., the bottom wall surface of the liquid storage room), so as to avoid or reduce the situation that bubbles during ventilation adhere to the upper surface of the holding portion 1220 and the liquid absorbing surface of the heating element 131. In some embodiments, the vertical distance between the vent opening 1229 and the liquid absorbing surface of the heating element 131 is preferably greater than the vertical distance between the vent opening and the upper surface of the holding portion 1220. In some embodiments, the upper surface of the holding portion 1220 may be a flat surface provided horizontally. It is to be understood that the vent tube 1223 is not limited to be provided on the surface of the convergence portion 1214. In some embodiments, as the position of the vent hole 1221 changes, the vent tube may also be provided on the inner wall surface of the liquid flowing opening 1210 or the liquid storage tank 214.

Referring to FIG. 8, in some embodiments, the vent tube 1223 may be integrally formed with the holding portion 1220. In some embodiments, the central through holes of the vent tube 1223 are designed as stepped holes, and the pore size of the first hole segment at the side close to the holding portion 1220 is larger than the pore size of the second hole segment at the side away from the holding portion 1220. In some embodiments, the pore size of the first hole segment is 0.5-1 mm, and the pore size of the second hole segment is 0.2-0.6 mm. In some embodiments, the length of the vent tube 1223 is 0.8-1.5 mm.

Referring to FIG. 9, in some embodiments, a pair of longitudinally extending third vent grooves 1225 may be formed at positions close to each vent hole 1221 on the inner wall surface of the outer enclosing frame 1226, and fourth vent grooves 1227 for communicating the vent holes 1221 with the third vent grooves 1225 are correspondingly formed in the lower surface of the holding portion 1220. In this way, the second vent grooves 1125, the first vent grooves 1123, the third vent grooves 1225, the fourth vent grooves 1227, the vent holes 1221, and the vent tubes 1223 are sequentially connected to form vent channels of the atomizer 1. It is to be understood that although the vent channels of the atomizer 1 illustrated include four vent channels distributed near the four corners of the atomization assembly 13, the number is not limited to four, and may also be less than four or more than four, which may be increased or decreased according to the specific situation.

The lower end surfaces of the two opposite side walls of the outer enclosing frame 1226 close to the pair of vent holes 1221 extend downwards to form arc-shaped embedding portions 1228, which are respectively embedded in the upper surfaces of the first support portion 1121 and the second support portion 1131 of the lower seat 11. A pair of arc-shaped embedding grooves 1126 for the tail ends of the embedding portions 1228 to be embedded in are respectively formed in the upper surfaces of the first support portion 1121 and the second support portion 1131. The two ends of each embedding groove 1126 are respectively communicated with the corresponding pair of first vent grooves 1123 (as illustrated in FIG. 7).

As illustrated in FIG. 10, in some embodiments, the atomization assembly 13 may include a sheet-like heating element 131 and a soft seal member 132 bonded to the edge part of the heating element 131. The heating element 131 may include a liquid absorbing surface located on the upper side 133 and an atomization surface located on the lower side 134 and opposite to the liquid absorbing surface. In a case that the seal member 132 is bonded to the edge part of the heating element 131, both the liquid absorbing surface and the atomization surface are exposed.

In some embodiments, the heating element 131 may include a sheet-like substrate 1311 and a heating layer 1312 formed on the bottom surface of the substrate 1311. The substrate 1311 may be made of glass or dense ceramics with a micropore array, or sheet-like porous ceramics.

In some embodiments, the substrate 1311 may include flat and parallel upper and lower surfaces. The middle region of the upper surface forms the liquid absorbing surface, and the middle region of the lower surface forms the atomization surface. In some embodiments, the thickness of the substrate 1311 may be 0.1-10 mm. In some cases, the thickness of the substrate 1311 may be 0.1-1 mm. In some embodiments, the porosity range of the substrate 1311 may be 0.2-0.8, and in some embodiments, the surface tension range of the aerosol generation substrate that it adapts to may be 38-65 mN/m. It is to be understood that the heating element 131 is not limited to be in a rectangular sheet shape, and in some embodiments, it may also be in any of other shapes such as square sheet shape, circular sheet shape, elliptical sheet shape, runway-shaped sheet shape, and irregular sheet shape.

In some embodiments, the soft seal member 132 may in a rectangular annular shape to expose the upper liquid absorbing surface and the lower atomization surface of the heating element 131. In some embodiments, the soft seal member 132 may be wrapped around the periphery of the heating element 131, and a groove 1320 for embedding the edge of the heating element 131 is formed in the inner wall surface, for the upper, lower, and outer sides of the edge part of the heating element 131 to be all wrapped by the seal member 132. On one hand, it can prevent liquid leakage, and on the other hand, it can prevent the heating element 131 from being crushed. In some embodiments, the soft seal member 132 further includes an insertion groove 1322 formed in a frame to allow the heating element 131 to be inserted into the seal member 132. In some embodiments, the soft seal member 132 may also be integrally formed with the heating element 131 through injection molding. In some other embodiments, the seal member 132 may also be formed by splicing two or more structures.

In some embodiments, the atomization main body 10 further includes a reinforcing member 15. The reinforcing member 15 may include a rectangular annular body. In some embodiments, it may be made of a material that is not easily broken and can withstand large forces, such as a metal sheet, dense ceramics or hard glue. Preferably, it is a metal sheet, such as steel sheet SUS-316L (food grade), the thickness range is 0.1-0.5 mm (preferably, the thinner, the better when the strength meets the requirement). The two ends of the annular body of the reinforcing member 15 are respectively supported by the first support arm 112 and the second support arm 113 to support the atomization assembly 13. The four frames of the annular body of the reinforcing member 15 are respectively supported under the four frames of the seal member 132 of the atomization assembly 13, allowing the heating element 131 of the atomization assembly 13 to be uniformly stressed around, so as to avoid fracture due to excessive stress. In a case that the soft seal member 132 of the atomization assembly 13 is uniformly stressed, the sealing performance is better. The central through hole 150 of the annular body of the reinforcing member 15 forms an opening that exposes the atomization surface of the heating element 131.

In some embodiments, the soft seal member 132 may include a pair of arc-shaped first limiting protrusions 1321. The pair of arc-shaped first limiting protrusions 1321 are respectively formed on the outer wall surfaces of the two opposite frames of the seal member 132. Correspondingly, a pair of arc-shaped second limiting protrusions are respectively provided on the outer sides of the two opposite sides of the reinforcing member 15. The inner sides of the two opposite sides of the reinforcing member 15 are respectively concaved inwards to form circular arc-shaped avoidance grooves 152, providing avoidance space for the mounting of the pair of electrodes 14.

In some embodiments, the atomization main body 10 may further include a seal sleeve 16, which sleeves the upper part of the upper seat 12 to achieve liquid sealing between the upper seat 12 and the inner wall surface of the housing 20. In some embodiments, a pair of liquid flowing holes 160 and an air passing hole 162 may be formed in the top wall of the seal sleeve 16. The pair of liquid flowing holes 160 are respectively and correspondingly communicated with the pair of liquid flowing openings 1210 of the upper seat 12. The air passing hole 162 is correspondingly communicated with the air outlet channel 1212 of the upper seat 12.

It is to be understood that a person of ordinary skill in the art may freely combine the above technical features and may make several variations and improvements without departing from the concept of the present invention, all of which fall within the scope of protection of the present invention.

While the invention has been illustrated and described in detail in the drawings and foregoing description, such illustration and description are to be considered illustrative or exemplary and not restrictive. It will be understood that changes and modifications may be made by those of ordinary skill within the scope of the following claims. In particular, the present invention covers further embodiments with any combination of features from different embodiments described above and below. Additionally, statements made herein characterizing the invention refer to an embodiment of the invention and not necessarily all embodiments.

The terms used in the claims should be construed to have the broadest reasonable interpretation consistent with the foregoing description. For example, the use of the article “a” or “the” in introducing an element should not be interpreted as being exclusive of a plurality of elements. Likewise, the recitation of “or” should be interpreted as being inclusive, such that the recitation of “A or B” is not exclusive of “A and B,” unless it is clear from the context or the foregoing description that only one of A and B is intended. Further, the recitation of “at least one of A, B and C” should be interpreted as one or more of a group of elements consisting of A, B and C, and should not be interpreted as requiring at least one of each of the listed elements A, B and C, regardless of whether A, B and C are related as categories or otherwise. Moreover, the recitation of “A, B and/or C” or “at least one of A, B or C” should be interpreted as including any singular entity from the listed elements, e.g., A, any subset from the listed elements, e.g., A and B, or the entire list of elements A, B and C.

Claims

1. An atomizer, comprising: a liquid storage room configured to store liquid aerosol generation substrate;an atomization main body comprising an atomization assembly, the atomization assembly comprising a liquid absorbing surface in liquid guide communication with the liquid storage room; andat least one vent channel comprising a vent tube provided on an inner wall surface of the liquid storage room, the vent tube comprising a vent opening that is away from the inner wall surface and/or the liquid absorbing surface.

2. The atomizer of claim 1, wherein the atomizer has a longitudinal axis, and wherein the liquid absorbing surface is approximately perpendicular to the longitudinal axis.

3. The atomizer of claim 2, wherein the inner wall surface comprises a bottom wall surface adjacent to the liquid absorbing surface, and wherein the vent tube is vertically provided on the bottom wall surface.

4. The atomizer of claim 3, wherein the bottom wall surface comprises a flat surface, and wherein a vertical distance between the vent opening and the bottom wall surface is smaller than a vertical distance between the vent opening and the liquid absorbing surface.

5. The atomizer of claim 4, wherein a length direction of the vent tube is parallel to the longitudinal axis.

6. The atomizer of claim 1, wherein central through holes of the vent tube comprise stepped holes, and wherein a pore size of each hole segment decreases in a direction away from the inner wall surface.

7. The atomizer of claim 6, wherein the central through holes comprise a first hole segment close to the inner wall surface and a second hole segment away from the inner wall surface, and wherein a pore size of the first hole segment is 0.5-1 mm and a pore size of the second hole segment is 0.2-0.6 mm.

8. The atomizer of claim 7, wherein a length of the vent tube is 0.8-1.5 mm.

9. The atomizer of claim 1, wherein the liquid storage room comprises a convergence portion formed in the atomization main body, and wherein the vent tube is vertically provided on the inner wall surface of the convergence portion.

10. The atomizer of claim 9, wherein the atomization main body comprises a lower seat comprising a first support portion and a second support portion spaced apart, wherein the atomization assembly is transversely mounted on the first support portion and the second support portion,wherein an atomization cavity is formed below the atomization assembly,wherein the atomization assembly comprises an atomization surface opposite the liquid absorbing surface, andwherein the atomization surface is in air guide communication with the atomization cavity.

11. The atomizer of claim 10, wherein the at least one vent channel comprises a first vent groove formed in a top surface of the first support portion or the second support portion and extending transversely, wherein a second vent groove formed in an inner side surface of the first support portion or the second support portion extends longitudinally,wherein the first vent groove is communicated with the second vent groove,wherein the atomization assembly covers the first vent groove, andwherein an end of the first vent groove away from the inner side surface is exposed outside the atomization assembly.

12. The atomizer of claim 11, wherein the atomization main body comprises an upper seat comprising a holding portion pressing against the atomization assembly and an outer enclosing frame provided on the holding portion, wherein the at least one vent channel comprises a vent hole vertically running through the holding portion and communicated with the vent opening,wherein a third vent groove is formed in an inner wall surface of the outer enclosing frame and extends longitudinally downwards,wherein a fourth vent groove is formed in a lower surface of the holding portion and communicates the vent hole with the third vent groove, andwherein a lower end of the third vent groove is communicated with the end of the first vent groove away from the inner side surface.

13. The atomizer of claim 12, wherein the atomization assembly comprises a sheet-like heating element and a soft seal member bonded to a periphery of the heating element, wherein the vent hole faces directly to the soft seal member, andwherein the outer enclosing frame surrounds the periphery of the soft seal member.

14. The atomizer of claim 13, wherein the heating element comprises a sheet-like substrate, and wherein the substrate comprises glass with a micropore array, dense ceramics with a micropore array, or sheet-like porous ceramics.

15. The atomizer of claim 13, wherein the holding portion is provided with a liquid flowing opening vertically running through the holding portion and corresponding to the liquid absorbing surface, wherein the lower surface of the holding portion comprises an inner enclosing frame surrounding the liquid flowing opening, andwherein the inner enclosing frame abuts against the inner side of the soft seal member.

16. The atomizer of claim 12, wherein the vent tube is provided on the holding portion.

17. The atomizer of claim 1, wherein the at least one vent channel comprises two vent channels, wherein each vent channel of the two vent channels comprises a vent tube, andwherein vent tubes of the two vent channels are respectively provided on two opposite sides of the liquid absorbing surface.

18. An electronic atomization device, comprising: the atomizer of claim 1.