CN114762538A

CN114762538A - Electronic atomization device and atomizer thereof

Info

Publication number: CN114762538A
Application number: CN202111653230.4A
Authority: CN
Inventors: 李光辉; 龚博学
Original assignee: Shenzhen Smoore Technology Ltd
Current assignee: Shenzhen Smoore Technology Ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-07-19
Anticipated expiration: 2041-12-30
Also published as: CN120753439A; CN114762538B

Abstract

The invention discloses an electronic atomization device and an atomizer thereof. The atomizer includes a liquid storage space, an atomization main body and at least one ventilation channel. The liquid storage space is used to store a liquid aerosol generation substrate; the atomization main body It includes an atomization assembly, and the atomization assembly includes a suction surface that is in fluid communication with the liquid storage space; the at least one ventilation channel includes a ventilation pipe arranged on the inner wall surface of the liquid storage space, and the ventilation pipe A ventilation port is included, and the ventilation port is far away from the inner wall surface and the liquid suction surface. In the present invention, by arranging the ventilation port at a position away from the inner wall surface and the liquid suction surface of the liquid storage space, air bubbles can be prevented from adhering to the inner wall surface and/or the liquid suction surface of the liquid storage space during ventilation.

Description

Electronic atomization device and atomizer thereof

Technical Field

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

Background

The electronic atomization device generally comprises a liquid storage space, a porous heating body, a sealing piece and an airflow channel. The sealing member is used for preventing the liquid in the liquid storage space from flowing to the place except the heating body. When heating atomizing, the liquid in the stock solution space reduces, and inside gas space increases, and atmospheric pressure reduces, and the resistance increase of liquid flow to the heat-generating body leads to easily supplying liquid not enough, produces the dry combustion method phenomenon. In order to solve the problem, the related art selects to add a ventilation structure for communicating the ambient gas and the liquid storage space, and the ambient gas supplies gas to the liquid storage space through the ventilation structure under the driving of pressure difference, so as to balance the gas pressure. At present, the air vent is generally arranged on the bottom wall or the peripheral wall of the liquid storage space, but air bubbles are easily adhered to the wall surface around the air vent, the air bubble blocking phenomenon is generated, and the air ventilation is blocked.

Disclosure of Invention

Aiming at the defects in the technology, the invention provides an improved electronic atomization device and an atomizer thereof.

To achieve the above object, the present invention provides an atomizer comprising:

a liquid storage space for storing a liquid aerosol-generating substrate;

the atomization main body comprises an atomization assembly, and the atomization assembly comprises a liquid suction surface communicated with the liquid guide of the liquid storage space; and

at least one ventilation channel comprising a ventilation tube disposed on an inner wall surface of the liquid storage space, the ventilation tube comprising a ventilation port, the ventilation port being remote from the inner wall surface and/or the liquid intake surface.

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

In some embodiments, the inner wall surface includes a surface adjacent to the suction surface on which the ventilation tube stands.

In some embodiments, the surface is a flat surface and a vertical distance between the transfer port and the surface is less than a vertical distance between the transfer port and the suction surface.

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

In some embodiments, the central through hole of the ventilation tube is a stepped hole, and the aperture of each hole section decreases in a direction away from the inner wall surface.

In some embodiments, the central through hole comprises a first hole section close to the inner wall surface and a second hole section far from the inner wall surface, the first hole section has a hole diameter of 0.5-1mm, and the second hole section has a hole diameter of 0.2-0.6 mm.

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

In some embodiments, the liquid storage space includes a collecting portion formed in the atomizing body, and the ventilation tube is erected on an inner wall surface of the collecting portion.

In some embodiments, the atomizing main body includes a lower seat body, the lower seat body includes a first supporting portion and a second supporting portion arranged at an interval, the atomizing assembly transversely spans the first supporting portion and the second supporting portion, and an atomizing cavity is formed below the atomizing assembly; the atomization assembly comprises an atomization surface opposite to the liquid suction surface, and the atomization surface is communicated with the atomization cavity in an air guide manner.

In some embodiments, the at least one air exchange channel includes a first air exchange groove extending in a transverse direction formed on a top surface of the first support portion or the second support portion and a second air exchange groove extending in a longitudinal direction formed on an inner side surface of the first support portion or the second support portion, the first air exchange groove communicating with the second air exchange groove; the atomization component covers above the first ventilation groove, and one end, far away from the inner side face, of the first ventilation groove is exposed outside the atomization component.

In some embodiments, the atomizing main body includes an upper seat body, the upper seat body includes a supporting portion that is pressed against the atomizing assembly, and a peripheral frame disposed on the supporting portion; the at least one ventilation channel comprises a ventilation hole which vertically penetrates through the abutting part and is communicated with the ventilation port, a third ventilation groove which is formed on the inner wall surface of the peripheral frame and longitudinally extends downwards, and a fourth ventilation groove which is formed on the lower surface of the abutting part and is communicated with the ventilation hole and the third ventilation groove; the lower end of the third scavenging groove is communicated with one end, far away from the inner side surface, of the first scavenging groove.

In some embodiments, the atomizing assembly includes a sheet-shaped heat generating body and a soft sealing member bonded to a periphery of the heat generating body, the ventilation hole is opposed to the sealing member, and the peripheral frame surrounds a periphery of the sealing member.

In some embodiments, the heat-generating body includes a sheet-like base body made of glass having an array of micropores, dense ceramic having an array of micropores, or porous ceramic in a sheet form.

In some embodiments, the abutting portion is provided with a lower liquid port which is vertically communicated and corresponds to the liquid suction surface, the lower surface of the abutting portion further comprises an inner surrounding frame surrounding the lower liquid port, and the inner surrounding frame abuts against the inner side of the sealing element.

In some embodiments, the ventilation tube is disposed on the holding portion.

In some embodiments, the at least one ventilation channel comprises two ventilation channels, each ventilation channel comprises a ventilation tube, and the ventilation tubes of the two ventilation channels are respectively arranged on two opposite sides of the liquid suction surface.

There is also provided an electronic atomising device comprising an atomiser as in any one of the above.

The invention has the beneficial effects that: the ventilation port is arranged at a position far away from the inner wall surface of the liquid storage space and the liquid suction surface, so that bubbles can be prevented from adhering to the inner wall surface of the liquid storage space and/or the liquid suction surface during ventilation.

Drawings

Fig. 1 is a schematic perspective view of an electronic atomization device according to some embodiments of the present disclosure.

Fig. 2 is a schematic perspective exploded view of the electronic atomizer shown in fig. 1.

Fig. 3 is a schematic sectional view of the atomizer of the electronic atomization device shown in fig. 1 along the direction B-B.

Fig. 4 is a schematic sectional view of the atomizer of the electronic atomization device shown in fig. 1 along the direction a-a.

Fig. 5 is a schematic perspective exploded view of the atomizer shown in fig. 1.

Fig. 6 is a schematic longitudinal sectional view of the atomizer shown in fig. 1 in an exploded state.

Fig. 7 is a schematic perspective exploded view of the atomizing body shown in fig. 5.

Fig. 8 is a schematic longitudinal sectional view of the atomizing body shown in fig. 5 in a disassembled state.

Fig. 9 is a schematic perspective exploded view of the atomizing body shown in fig. 5 from another view angle.

Fig. 10 is a schematic perspective exploded view of the atomizing assembly shown in fig. 9.

Detailed Description

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

It should be understood that the terms "front", "back", "left", "right", "up", "down", "first", "second", etc. are used for convenience of describing the technical solutions of the present invention, and do not indicate that the devices or elements referred to must have special differences, and thus, the present invention cannot be construed as being limited. It will be understood that when an element is referred to as being "coupled" to another element, it can be directly coupled to the other element or intervening elements may also be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Fig. 1 and 2 illustrate an electronic atomizer device according to some embodiments of the present invention, which may be in the form of a hand-held rod-like structure for a user to inhale an aerosol. As shown in the figure, the electronic atomizer apparatus may include an atomizer 1 and a power supply apparatus 2 cooperating with the atomizer 1. The nebulizer 1 may be used for storing and heat nebulizing a liquid aerosol-generating substrate, such as a pharmaceutical liquid, and for conducting the aerosol. The power supply means 2 may be used to power the atomiser 1. In some embodiments, the atomizer 1 and the power supply device 2 may each have a substantially elliptical cylindrical shape, and both are mechanically and electrically connected together in the axial direction. In some embodiments, the atomizer 1 and the power supply device 2 may be detachably connected together by means of magnetic attraction. It is to be understood that the atomizer 1 and the power supply device 2 are not limited to the elliptical cylinder shape, but may be a cylindrical shape having a circular, racetrack, or irregular cross-section, or may be non-cylindrical.

Figures 3 to 6 show a nebuliser 1 according to some embodiments of the present invention, the nebuliser 1 comprising a atomising body 10 and a housing 20 mounted on the atomising body 10 along a longitudinal axis X, the atomising body 10 and the housing 20 together defining a liquid storage space for storing a liquid aerosol-generating substrate. The atomising body 10 is arranged to heat a liquid aerosol-generating substrate in a liquid reservoir to generate an aerosol and the housing 20 is arranged to protect the atomising body 10 and to direct a mixture of aerosol and air away. The reservoir space may, in some embodiments, include a reservoir 214 formed between an outer wall surface of the atomising body 10 and an inner wall surface of the housing 20 and a downcomer channel formed within the atomising body 10. The reservoir 214 is for storing a liquid aerosol-generating substrate and the lower liquid passage is for conveying liquid from the reservoir 214 to the atomizing assembly 13.

The housing 20 may in some embodiments comprise a flat casing 21 having an opening 212 at one end and an air outlet 210 at one end, and an air guide duct 22 having one end connected to the air outlet 210 and the other end extending toward the opening 212 of the casing 21, wherein the air guide duct 22 is inserted into the atomizing body 10 at the end thereof to guide the mist generated during the operation of the atomizing body 10. An annular liquid storage chamber 214 is defined between the inner wall surface of the casing 21 and the outer wall surface of the air duct 22. The opening 212 allows the atomising body 10 to be inserted into the housing 20. The inside of the open end of the housing 21 may also be provided with a snap structure 216 to snap with the atomizing body 10 inserted into the open end of the housing 21.

Referring collectively to fig. 7-9, the atomizing body 10 may be symmetrical front and back, as well as left and right, in some embodiments to facilitate molding and subsequent assembly. The atomizing body 10 may include a lower base 11, an upper base 12 snap-connected to the lower base 11, an atomizing element 13 interposed between the lower base 11 and the upper base 12, and a pair of electrodes 14 disposed in the lower base 11 at intervals and electrically connected to the atomizing element 13, respectively. It will be appreciated that the atomising body 10 is not limited to a symmetrical configuration and that an asymmetrical configuration may be suitable. The atomizing assembly 13 may be arranged horizontally in some embodiments, i.e., in a plane perpendicular to the longitudinal axis X of the atomizing body 10.

Lower housing 11 may be integrally formed of a rigid plastic material in some embodiments, and it is preferably front and rear side symmetric, left and right side symmetric for ease of manufacturing and subsequent assembly. The lower base 11 may include a base 111 having a substantially oval shape, a first support arm 112 standing on a first end of the top surface of the base 111 in a long axis direction, and a second support arm 113 standing on a second end of the top surface of the base 111. The first support arm 112 and the second support arm 113 together support the atomizing unit 13 from the lower side of the atomizing unit 13, and form a lower support portion (second support portion) of the atomizing unit 13. A space is formed between the first supporting arm 112 and the second supporting arm 113, so that when the atomizing assembly 13 is transversely erected on the first supporting arm 112 and the second supporting arm 113, an atomizing cavity 110 is formed at the lower side of the atomizing assembly 13, and the atomizing cavity 110 is used for mixing aerosol atomized by the atomizing assembly 13 with air inhaled from the outside and carrying the aerosol away by air flow.

The base 111 may include a central, vertically through-going inlet channel 1110 and a pair of vertically through-going mounting holes 1112 in some embodiments, wherein the pair of mounting holes 1112 are used for respectively passing through the lower ends of the pair of electrodes 14.

As further shown in fig. 7, the first support arm 112 may include a first support portion 1121 and a first resisting portion 1122 extending upward from a position of the top surface of the first support portion 1121 away from the second support arm 113 in some embodiments. The first supporting portion 1121 is used for supporting one end of the atomizing assembly 13, and the first blocking portion 1122 is formed with a first locking hole 1120 for being locked with the upper seat 12.

The second support arm 113 may include a second support portion 1131 and a second stopping portion 1132 extending upward from a top surface of the second support portion 1131 away from the first support arm 112 in some embodiments. The second supporting portion 1131 is used for supporting the other end of the atomizing assembly 13, and the second blocking portion 1132 has a first locking hole 1130 formed thereon for being locked with the upper seat 12.

The first and

second support portions

1121 and 1131 may respectively include a pair of first air change grooves 1123 formed on the top surface and extending laterally and a pair of second air change grooves 1125 formed on the inner side surface in some embodiments, the pair of first air change grooves 1123 being respectively communicated with the pair of second air change grooves 1125, and one end of each first air change groove 1123, which is far from the atomizing chamber 110, is exposed to the outside of the atomizing assembly 13 and is communicated with the lower end of the corresponding third air change groove 1225 of the upper housing 12.

The upper housing 12 may be integrally formed of a rigid plastic material in some embodiments, and may be symmetrical on the front and rear sides, and symmetrical on the left and right sides. The upper housing 12 may include a body 121 and a pressing portion 122 disposed at a lower portion of the body 121 in some embodiments.

The body portion 121 may include a pair of lower liquid ports 1210 and an air outlet channel 1212 in some embodiments, and the air outlet channel 1212 may be located at the top middle portion of the body portion 121 and arranged along the longitudinal direction. The pair of lower liquid outlets 1210 may be respectively disposed on two opposite sides of the air outlet channel 1212 and arranged along a longitudinal direction. The body portion 121 may also include a collection portion 1214 in some embodiments, the collection portion 1214 being positioned below the pair of lower liquid ports 1210 and being in communication with the pair of lower liquid ports 1210, respectively, to allow liquid aerosol-generating substrate in the reservoir 214 to flow into the collection portion 1214 as indicated by arrow N in figure 3. The air outlet channel 1212 is used for communicating the lower end of the air guide duct 22 of the casing 20. The collection portion 1214 and the pair of drain ports 1210 together form the drain passage.

The body portion 121 may further include a pair of air guide grooves 1216 (as shown in fig. 4), and the pair of air guide grooves 1216 are formed on two opposite outer wall surfaces of the body portion 121 and extend from top to bottom. The pair of air guide slots 1216, together with the housing 21, define air guide channels (the flow of air is indicated by arrows M in fig. 4) that communicate the nebulizing chamber 110 with the air outlet channel 1212.

The pressing portion 122 may include an annular pressing portion 1220 in some embodiments, the pressing portion 1220 presses against an upper side of the edge portion of the atomizing assembly 13 to form an upper side pressing portion (a first pressing portion) of the atomizing assembly 13, and the upper side pressing portion (a first supporting portion 1121 and a second supporting portion 1131) of the atomizing assembly 13 on the lower seat body together with the lower side pressing portion (the first supporting portion 1121 and the second supporting portion 1131) of the atomizing assembly 13 clamps and fixes the atomizing assembly 13. The central portion of the abutting portion 1220 includes a lower liquid outlet 1222 penetrating vertically and facing the liquid absorbing surface of the atomizing assembly 13, and the lower liquid outlet 1222 is communicated with the collecting portion 1214 of the main body 121 and is located right below the collecting portion 1214, so that the liquid aerosol generating substrate in the collecting portion 1214 can flow to the liquid absorbing surface of the atomizing assembly 13. The lower port 1222 may be rectangular in some embodiments and sized to fit the liquid suction surface of the atomizing assembly 13.

The pressing portion 122 may in some embodiments include an inner peripheral frame 1224 formed on the bottom surface of the pressing portion 1220 and surrounding the lower liquid outlet 1222, and a outer peripheral frame 1226 formed on the periphery of the bottom surface of the pressing portion 1220, the inner peripheral frame 1224 being adapted to laterally abut against the inner side of the sealing member 132 of the atomizing assembly 13, and the outer peripheral frame 1226 being adapted to laterally abut against the outer side of the sealing member 132.

The abutting portion 1220 may include a pair of ventilation holes 1221 penetrating up and down in some embodiments, the pair of ventilation holes 1221 is opposite to the sealing member 132 of the atomizing assembly 13, and the lower side of the abutting portion 1220 is communicated with the collecting portion 1214 located on the upper side of the abutting portion 1220, so as to ventilate the liquid in the liquid storage space when the liquid pressure in the liquid storage space is too low, thereby achieving the air-liquid balance in the liquid storage space. The upper surface of the supporting portion 1220 forms a bottom wall of the liquid storage space, and a pair of air vent pipes 1223 are disposed on the supporting portion corresponding to the pair of air vent holes 1221 in some embodiments. The pair of air exchanging pipes 1223 are respectively communicated with the pair of air exchanging holes 1221, and the axes of the pair of air exchanging pipes 1223 are perpendicular to the liquid absorbing surface of the heating element 131, so that the air exchanging port 1229 at the end of the air exchanging pipe 1223 protrudes a distance from the upper surface of the supporting portion 1220 (i.e. a bottom wall surface of the liquid storing space), so as to avoid or reduce the adhesion of air bubbles on the upper surface of the supporting portion 1220 and the liquid absorbing surface of the heating element 131 during air exchanging. In some embodiments, the vertical distance from the ventilation port 1229 to the liquid suction surface of the heating body 131 is preferably larger than the vertical distance from the ventilation port to the upper surface of the holding portion 1220. The upper surface of the retaining portion 1220 may be a horizontally disposed flat surface in some embodiments. It is to be understood that the ventilation tube 1223 is not limited to be disposed on the surface of the collecting portion 1214, and in some embodiments, the ventilation tube 1223 may be disposed on the lower liquid port 1210 or the inner wall surface of the liquid storage 214 as the position of the ventilation hole 1221 changes.

As shown in fig. 8, the ventilation tube 1223 may be integrally formed with the retaining portion 1220 in some embodiments. The central through hole of the ventilation tube 1223 is designed as a stepped hole in some embodiments, and the aperture of the first hole section near the side of the supporting portion 1220 is larger than the aperture of the second hole section far from the side of the supporting portion 1220. In some embodiments, the first pore section has a pore size of 0.5 to 1mm and the second pore section has a pore size of 0.2 to 0.6 mm. In some embodiments, the length of the ventilation tube 1223 is 0.8-1.5 mm.

As shown in fig. 9, a pair of third ventilation grooves 1225 extending in the longitudinal direction may be formed on the inner wall surface of the peripheral frame 1226 adjacent to each ventilation hole 1221 in some embodiments, and a fourth ventilation groove 1227 for communicating the ventilation hole 1221 with the third ventilation groove 1225 is correspondingly formed on the lower surface of the abutting portion 1220. Thus, the second air vent 1125, the first air vent 1123, the third air vent 1225, the fourth air vent 1227, the air vent 1221, and the air vent pipe 1223 are connected in sequence to form an air vent passage of the nebulizer 1. It should be understood that, although the ventilation channels of the illustrated nebulizer 1 include four ventilation channels distributed around four corners of the atomizing assembly 13, the number of ventilation channels is not limited to four, and less than four or more than four ventilation channels may also be suitable, and may be increased or decreased according to specific situations.

The peripheral frame 1226 extends downward to form an arc-shaped embedding portion 1228 near lower end surfaces of two opposite side walls of the pair of ventilation holes 1221 respectively, so as to be embedded in upper surfaces of the first supporting portion 1121 and the second supporting portion 1131 of the lower housing 11 respectively. The upper surfaces of the first and

second support parts

1121 and 1131 are respectively formed with a pair of arc-shaped insertion grooves 1126 into which the distal ends of the insertion parts 1228 are inserted, and both ends of each insertion groove 1126 are respectively communicated with a corresponding pair of first ventilation grooves 1123 (shown in fig. 7).

As shown in fig. 10, the atomizing assembly 13 may include a sheet-shaped heating element 131 and a soft sealing member 132 coupled to an edge portion of the heating element 131, the heating element 131 may include a liquid absorbing surface located on an upper side 133 and an atomizing surface located on a lower side 134 and facing the liquid absorbing surface, and when the sealing member 132 is coupled to the edge portion of the heating element 131, both the liquid absorbing surface and the atomizing surface are exposed.

The heat generating body 131 may include a sheet-shaped base 1311 and a heat generating layer 1312 formed on a bottom surface of the base 1311 in some embodiments. The substrate 1311 may be glass or dense ceramic having a micro-pore array, or may be porous ceramic in a sheet form.

The substrate 1311 may, in some embodiments, include upper and lower surfaces that are flat and parallel to each other, wherein a central region of the upper surface forms the suction surface and a central region of the lower surface forms the atomization surface. The thickness of the substrate 1311 may be 0.1 to 10mm in some embodiments. In some cases, the thickness of the substrate 1311 may be 0.1 to 1 mm. The porosity of the substrate 1311 may range from 0.2 to 0.8 in some embodiments, and the surface tension of the adapted aerosol-generating substrate may range from 38 to 65mN/m in some embodiments. It is to be understood that the heat-generating body 131 is not limited to the rectangular sheet shape, and may have other shapes such as a square sheet shape, a circular sheet shape, an oval sheet shape, a racetrack sheet shape, and a deformed sheet shape in some embodiments.

The soft sealing member 132 may have a rectangular ring shape in some embodiments to expose the upper liquid suction surface and the lower atomization surface of the heating body 131. In some embodiments, the soft sealing member 132 may cover the periphery of the heating element 131, and the inner sidewall surface is formed with a groove 1320 for embedding the edge of the heating element 131, so that the upper side, the lower side and the outer side of the edge of the heating element 131 are all covered by the sealing member 132, which can prevent leakage on one hand and protect the heating element 131 from being crushed on the other hand. The soft sealing member 132 further includes a slot 1322 formed on a rim in some embodiments to allow the heat generating body 131 to be inserted into the sealing member 132. The soft sealing member 132 may also be integrally injection molded with the heating body 131 in some embodiments. The sealing member 132 may be formed by splicing two or more structures in other embodiments.

The atomising body 10 in some embodiments also comprises a stiffener 15, which stiffener 15 may comprise a rectangular annular body. In some embodiments, a material that is not brittle and can withstand large forces may be used, and may be a metal sheet, dense ceramic, hard glue, preferably a metal sheet, such as steel sheet SUS-316L (food grade), with a thickness in the range of 0.1-0.5mm (preferably, the thinner the better the strength required). The annular body of the reinforcing member 15 is supported at two ends by a first supporting arm 112 and a second supporting arm 113, respectively, to support the atomizing assembly 13. The four frames of the annular body of the reinforcement member 15 are respectively supported below the four frames of the sealing member 132 of the atomizing assembly 13, so that the heating element 131 of the atomizing assembly 13 is uniformly stressed all around, and the cracking caused by overlarge stress is avoided. The soft seal 132 of the atomizing assembly 13 is uniformly stressed to provide better sealing. The central through hole 150 of the annular body of the reinforcing member 15 forms an opening for exposing the atomizing surface of the heating element 131.

The soft sealing element 132 may include a pair of circular-arc-shaped first limiting protrusions 1321 in some embodiments, and the pair of first limiting protrusions 1321 are respectively formed on the outer wall surfaces of two opposite side frames of the sealing element 132. Correspondingly, a pair of circular arc-shaped second limiting protrusions are respectively arranged on the outer sides of two opposite side edges of the reinforcing member 15. The inner sides of the two opposite side edges of the reinforcing member 15 are recessed to form a circular arc-shaped avoidance groove 152, so as to provide an avoidance space for the installation of the pair of electrodes 14.

The atomizing body 10 may further include a sealing sleeve 16, which is sleeved on the upper portion of the upper seat 12 to achieve a liquid-tight seal between the upper seat 12 and the inner wall of the housing 20. In some embodiments, a pair of lower liquid holes 160 and an air passing hole 162 may be formed on the top wall of the sealing sleeve 16, the pair of lower liquid holes 160 respectively communicate with a pair of lower liquid ports 1210 of the upper housing 12, and the air passing hole 162 communicates with an air outlet channel 1212 of the upper housing 12.

It should be noted that, for a person skilled in the art, the above technical features can be freely combined, and several variations and modifications can be made without departing from the concept of the present invention, which all fall into the protection scope of the present invention.

Claims

1. An atomizer, comprising:

a liquid storage space for storing a liquid aerosol-generating substrate;

the atomization main body comprises an atomization assembly, and the atomization assembly comprises a liquid suction surface communicated with the liquid storage space in a liquid guiding manner; and

the liquid storage space is provided with at least one air exchange channel, the at least one air exchange channel comprises an air exchange pipe arranged on the inner wall surface of the liquid storage space, the air exchange pipe comprises an air exchange port, and the air exchange port is far away from the inner wall surface and/or the liquid suction surface.

2. The nebulizer of claim 1, wherein the nebulizer comprises a longitudinal axis, and wherein the inhalation surface is substantially perpendicular to the longitudinal axis.

3. The nebulizer of claim 2, wherein the inner wall surface includes a bottom wall surface adjacent to the liquid suction surface, and the ventilation tube is erected on the bottom wall surface.

4. The nebulizer of claim 3, wherein the bottom wall surface is a flat surface and a vertical distance between the vent port and the bottom wall surface is less than a vertical distance between the vent port and the suction surface.

5. A nebulizer as claimed in claim 4, wherein the length of the venting tube is parallel to the longitudinal axis.

6. A nebulizer as claimed in any one of claims 1 to 5, wherein the central through hole of the ventilation tube is a stepped hole, and the diameter of each hole section decreases away from the inner wall surface.

7. A nebulizer as claimed in claim 6, wherein the central through hole comprises a first hole section close to the inner wall surface and a second hole section remote from the inner wall surface, the first hole section having a hole diameter of 0.5-1mm and the second hole section having a hole diameter of 0.2-0.6 mm.

8. A nebulizer as claimed in claim 7, wherein the ventilation tube has a length of 0.8-1.5 mm.

9. A nebulizer as claimed in any one of claims 1 to 5, wherein the liquid holding space comprises a converging portion formed in the nebulizing body, the ventilation tube standing on an inner wall surface of the converging portion.

10. The atomizer according to claim 9, wherein the atomizing main body includes a lower seat body, the lower seat body includes a first supporting portion and a second supporting portion arranged at an interval, the atomizing assembly transversely spans the first supporting portion and the second supporting portion, and an atomizing chamber is formed below the atomizing assembly; the atomization assembly comprises an atomization surface opposite to the liquid suction surface, and the atomization surface is communicated with the atomization cavity in an air guide mode.

11. The nebulizer of claim 10, wherein the at least one ventilation channel comprises a first ventilation groove extending in a lateral direction formed in a top surface of the first support portion or the second support portion and a second ventilation groove extending in a longitudinal direction formed in an inner side surface of the first support portion or the second support portion, the first ventilation groove communicating with the second ventilation groove; the atomizing component covers first breather top, just first breather is kept away from the one end of medial surface is exposed outside the atomizing component.

12. The atomizer according to claim 11, wherein said atomizing body comprises an upper seat body, said upper seat body comprising a support portion which is pressed against said atomizing assembly and a peripheral frame which is disposed on said support portion; the at least one ventilation channel comprises a ventilation hole which vertically penetrates through the abutting part and is communicated with the ventilation port, a third ventilation groove which is formed on the inner wall surface of the peripheral frame and longitudinally extends downwards, and a fourth ventilation groove which is formed on the lower surface of the abutting part and is used for communicating the ventilation hole with the third ventilation groove; the lower end of the third air exchange groove is communicated with one end, far away from the inner side face, of the first air exchange groove.

13. The atomizer of claim 12, wherein said atomizing assembly comprises a sheet-like heat-generating body and a soft sealing member bonded to a periphery of said heat-generating body, said vent hole being opposed to said sealing member, and said peripheral frame surrounds a periphery of said sealing member.

14. The atomizer according to claim 13, wherein said heat-generating body comprises a sheet-like base body made of glass having an array of micropores, dense ceramic having an array of micropores, or sheet-like porous ceramic.

15. The atomizer according to claim 13, wherein said holding portion has a lower opening which is vertically through and corresponds to said liquid suction surface, and said holding portion further comprises an inner frame surrounding said lower opening, said inner frame abutting against an inner side of said sealing member.

16. The nebulizer of claim 12, wherein the ventilation tube is disposed on the retaining portion.

17. The nebulizer of claim 1, wherein the at least one ventilation channel comprises two ventilation channels, each ventilation channel comprising a ventilation tube, the ventilation tubes of the two ventilation channels being disposed on opposite sides of the inhalation surface.

18. An electronic atomisation device comprising a atomiser according to any of claims 1 to 17.