CN217826779U - Electronic atomization device and atomizer - Google Patents

Abstract

The utility model relates to an electronic atomization device and an atomizer, which comprises an atomization cavity, a heating structure arranged in the atomization cavity, an air inlet structure communicated with the atomization cavity and a liquid leakage prevention structure; the liquid leakage preventing structure is arranged between the heating structure and the air inlet structure and comprises a bearing surface, and the heating structure comprises a heating surface; the bearing surface is opposite to the heating surface; the area of the bearing surface is larger than that of the heating surface, and the bearing surface is used for bearing leakage and/or evaporating the leakage by utilizing the heat of the heating structure. The atomizer is characterized in that the liquid leakage preventing structure is arranged between the heating structure and the air inlet structure, the bearing surface of the liquid leakage preventing structure is opposite to the heating surface, and the area of the bearing surface of the liquid leakage preventing structure is larger than that of the heating surface of the heating structure, so that liquid leakage can be borne by the bearing surface and evaporated by using heat of the heating structure, and the service life and the use safety of the whole electronic atomization device can be further improved.

Description

Electronic atomization device and atomizer

Technical Field

The utility model relates to an atomizing device, more specifically say, relate to an electronic atomizing device and atomizer.

Background

The electronic atomization device generally includes a host and an atomizer, the host supplies power to the atomizer, the atomizer converts electric energy into heat energy, and a liquid atomization substrate stored in the atomizer absorbs the heat energy and then is atomized to form aerosol which can be sucked by a user. However, for the conventional electronic atomization device, during suction, part of condensate formed by cooling the aerosol flows out of the atomizer through the air inlet hole to form leakage, which on one hand can cause waste of the atomized substrate and reduce the utilization rate of the atomized substrate; on the other hand, leakage enters the host machine, so that the battery or other electronic components in the host machine are corroded, and the service life and the use safety of the host machine are influenced finally.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, provides an improved atomizer, further provides an improved electronic atomization device.

The utility model provides a technical scheme that its technical problem adopted is: constructing an atomizer which comprises an atomizing cavity, a heating structure arranged in the atomizing cavity, an air inlet structure communicated with the atomizing cavity and a liquid leakage prevention structure; the liquid leakage prevention structure is arranged between the heating structure and the air inlet structure and comprises a bearing surface, and the heating structure comprises a heating surface; the bearing surface is opposite to the heating surface;

the area of the bearing surface is larger than that of the heating surface, and the bearing surface is used for bearing leakage and/or evaporating the leakage by using the heat of the heating structure.

In some embodiments, the liquid leakage prevention structure includes a sheet-shaped body and a leakage prevention part;

the leakage-proof part comprises a boss; the boss is arranged on the sheet-shaped body and protrudes towards the heating surface;

the bearing surface is formed on the sheet body and the boss.

In some embodiments, the bearing surface comprises a first bearing portion formed on the boss; a set distance is reserved between the first bearing part and the heating structure;

the set distance is less than or equal to 1.5mm.

In some embodiments, the air intake structure comprises an air inlet in communication with the nebulization chamber;

the boss cover is arranged at the air inlet.

In some embodiments, the liquid-tight structure comprises a highly thermally conductive material.

In some embodiments, the nebulizer further comprises a nebulizing base; the air inlet structure is arranged on the atomizing base; the air inlet structure and the heating structure are arranged oppositely, and the height of the air inlet structure is greater than or equal to that of the atomizing base; the liquid leakage prevention structure is arranged on one side of the air inlet structure opposite to the heating structure.

In some embodiments, the liquid leakage preventing structure comprises a leakage preventing part, and a through hole for liquid blocking and air intake is arranged on the leakage preventing part;

the through hole with heating structure sets up relatively, and with air inlet structure intercommunication.

In some embodiments, the through-holes include a first through-hole for primary air intake.

In some embodiments, the via comprises a second via; the second through hole is arranged on the periphery of the first through hole and used for assisting air intake and preventing liquid leakage.

In some embodiments, the number of second through holes is greater than the number of first through holes.

In some embodiments, the second via has a smaller aperture than the first via.

In some embodiments, the first through hole has a hole diameter of 0.6 to 1.1mm.

In some embodiments, the second through hole has a hole diameter of 0.3 to 0.6mm.

In some embodiments, the air intake structure comprises an air inlet in communication with the nebulization chamber;

the through hole and the air inlet are not completely overlapped.

In some embodiments, a first reservoir is disposed on the air intake structure.

In some embodiments, the atomizer further comprises an atomizing base; the air inlet structure is arranged on the atomizing base;

and a second liquid storage tank is arranged on the atomizing base and used for receiving the condensate leaked to the atomizing base from the liquid leakage prevention structure.

In some embodiments, the atomizer further comprises an electrically conductive structure;

the liquid leakage preventing structure is provided with a through hole for the conductive structure to penetrate through so as to be connected with the heating structure;

the size of the through hole is larger than the cross-sectional size of the conductive structure;

and/or an insulating structure is arranged between the conductive structure and the through hole.

In some embodiments, the atomizer further comprises an atomizing mount; the atomizing cavity is formed in the atomizing base; the heating structure and the liquid leakage prevention structure are arranged in the atomizing base;

the liquid leakage preventing structure comprises a liquid blocking part matched with the atomizing seat.

In some embodiments, the liquid leakage preventing structure comprises a limiting part matched with the atomizing seat;

and a limit groove matched with the liquid leakage prevention structure is formed in the side wall of the atomizing base.

The utility model discloses still construct an electronic atomization device, include the utility model atomizer and with the power supply unit that the atomizer is connected.

Implement the utility model discloses an electronic atomization device and atomizer have following beneficial effect: the atomizer is characterized in that the liquid leakage preventing structure is arranged between the heating structure and the air inlet structure, the bearing surface of the liquid leakage preventing structure is opposite to the heating surface, and the area of the bearing surface of the liquid leakage preventing structure is larger than that of the heating surface of the heating structure, so that leaked liquid can be borne by the bearing surface and evaporated by heat of the heating structure, and the service life and the use safety of the whole electronic atomization device can be further improved.

Drawings

The invention will be further explained with reference to the drawings and examples, wherein:

fig. 1 is a schematic structural diagram of an electronic atomization device in a first embodiment of the present invention;

FIG. 2 is a cross-sectional view of the electronic atomizer of FIG. 1;

FIG. 3 is an exploded view of the electronic atomizer of FIG. 1;

FIG. 4 is a schematic diagram of the atomizer in use of the electronic atomizer of FIG. 3;

FIG. 5 is a schematic view of the electronic atomizer of the atomizer of FIG. 3 in an unused state;

FIG. 6 is a cross-sectional view of the atomizer shown in FIG. 5;

FIG. 7 is an exploded view of the atomizer shown in FIG. 5;

FIG. 8 is a schematic view of the atomizing housing of the atomizer shown in FIG. 7;

FIG. 9 is a schematic diagram of the atomizing assembly of the atomizer shown in FIG. 7;

FIG. 10 is a cross-sectional view of the atomizing assembly of FIG. 9;

FIG. 11 is an exploded view of the atomizing assembly of FIG. 9;

FIG. 12 is a schematic diagram of the atomizing base of the atomizing assembly of FIG. 11;

FIG. 13 is a cross-sectional view of the atomizing base of FIG. 12;

FIG. 14 is a schematic view of the atomizing base of the atomizing assembly of FIG. 11;

FIG. 15 is a schematic view of a liquid leakage prevention structure of the atomizing assembly shown in FIG. 11;

FIG. 16 is another perspective view of the leakage preventing structure of FIG. 15;

fig. 17 is a schematic structural view of a power supply assembly of the electronic atomizer shown in fig. 3;

FIG. 18 is a schematic view of a bottom cover of the power supply assembly of FIG. 17;

FIG. 19 is a schematic view of another angled configuration of the bottom cover shown in FIG. 17;

fig. 20 is a sectional view of an atomizer of the electronic atomizer according to the second embodiment of the present invention;

FIG. 21 is a schematic structural view of a atomizing assembly of the atomizer shown in FIG. 20;

FIG. 22 is a cross-sectional view of the atomizing assembly of the atomizer shown in FIG. 21;

FIG. 23 is a schematic view of the atomizing base of the atomizing assembly of FIG. 22;

FIG. 24 is a schematic view of the atomizing base of FIG. 23 at another angle;

fig. 25 is a cross-sectional view of the atomizing base shown in fig. 22.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 shows a first embodiment of the electronic atomization device of the present invention. The electronic atomization device can be used for heating and atomizing the liquid atomization medium to generate atomized gas for a user to suck. In some embodiments, the electronic atomization device has the advantages of being not prone to liquid leakage, simple in structure and good in atomization taste.

As shown in fig. 1 to 3, in the present embodiment, the electronic atomizer includes an atomizer a and a power supply assembly B; the atomizer A can be used for atomizing an atomizing medium, and the power supply assembly B can be mechanically and electrically connected with the atomizer A and can be used for supplying power to the atomizer A.

As shown in fig. 4 to 7, further, in the present embodiment, the atomizer a includes an atomizing housing 10 and an atomizing assembly 20. The atomizing housing 10 may be cylindrical, and the inner side thereof is hollow, so as to be used for accommodating the atomizing assembly 20 and storing the liquid atomizing medium. The atomizing assembly 20 is received in the atomizing housing 10 for heating and atomizing a liquid atomizing medium.

As shown in fig. 6 and 8, further, in the present embodiment, the atomizing housing 10 may include a housing 11, an air outlet tube 12 disposed in the housing 11; the outlet tube 12 may be located at the central axis of the housing 11, and a gap between the outlet tube and the inner side wall of the housing 11 may form a liquid storage chamber 13 for storing a liquid atomizing medium. In some embodiments, the housing 11 includes a first cylindrical body 111, a second cylindrical body 112, and a suction nozzle 113. The first column 111, the second column 112, and the suction nozzle 113 are connected in sequence and are arranged in a step shape. In some embodiments, the first cylindrical body 111 is a cylinder, an opening 1111 is disposed at an end of the first cylindrical body 111 away from the nozzle 113, the first cylindrical body 111 has a hollow structure, and the atomizing assembly 20 can be installed in the first cylindrical body 111 and disposed near the opening 1111. The second cylindrical member 112 is cylindrical and has a hollow structure. The first cylindrical body 111 may have a radial dimension greater than that of the second cylindrical body 112. The second cylinder 112 can communicate with the first cylinder 111. The suction nozzle 113 is a cylindrical body with an oval cross section, and the length of the long axis of the suction nozzle 113 can be smaller than or equal to the diameter of the second cylindrical body 112. An air outlet 1131 is disposed at an end of the suction nozzle 113 away from the second cylindrical body 112. The air outlet pipe 12 is disposed through the first cylindrical body 111 and the second cylindrical body 112, and has one end connected to the suction nozzle 113 and communicated with the suction nozzle 113. The suction nozzle 113 is adapted for use by a user to draw upon the atomizing assembly 20 to heat an aerosol formed from the liquid atomizing medium.

As shown in fig. 9 to 11, further, in the present embodiment, the atomizing assembly 20 includes an atomizing base 21, an atomizing base 22, and a heat generating structure 23. The atomizing base 21 can be used to support the heat-generating structure 23, and in other embodiments, the atomizing base 21 can be omitted. The atomizing base 22 is sleeved on the atomizing base 21 and detachably assembled with the atomizing base 21. The heating structure 23 is accommodated in the atomizing base 21 for heating the liquid atomizing medium transferred from the liquid storage chamber 13.

As shown in fig. 12 and 13, in the present embodiment, the atomizing base 21 includes a body 211, a supporting structure 212, and an air inlet structure 213. The main body 211 is used to cooperate with the atomizing base 22 and can seal the opening 1111 at the lower portion of the atomizing housing 10. In some embodiments, the body 211 is hollow and has a second reservoir 2110 disposed therein. The second reservoir 2110 is used for receiving the condensate leaking from the liquid leakage preventing structure 25 to the atomizing base 22, and specifically, the condensate leaking from the liquid leakage preventing structure 25 is trace, and the second reservoir 2110 can store the trace amount of the leakage, so that the condensate can be prevented from entering the air inlet structure 213. The body 211 may be circular in cross-section. The outer surface of the body 211 is provided with a catch 2111, and the catch 2111 can be used to engage with the atomizing housing 10. In some embodiments, the support structure 212 includes two opposing and spaced apart support arms 2121, and each support arm 2121 can be engaged with the atomizing base 22. The air inlet structure 213 is disposed in the body 211, and specifically, may be located in the middle of the second reservoir 2110, and protrudes toward the side of the heat generating structure 23 and is disposed opposite to the heat generating structure 23, and the air inlet structure 213 is used for allowing external air to enter the atomizing assembly 20. In some embodiments, the height of the air inlet structure 213 may be greater than or equal to the height of the atomizing base 21.

Further, in the present embodiment, the intake structure 213 includes an intake column 2131, and at least one intake passage 2132. The air inlet pillar 2131 is protruded from the main body 211, is located at the center axis of the second reservoir 2110, and is communicated with an air inlet through hole 2112 formed at the bottom of the main body 211. The at least one intake passage 2132 may be disposed in the intake column 2131 and arranged along an axial direction of the intake column 2131. In this embodiment, the number of the air inlet passages 2132 may be two, and the two air inlet passages 2132 are arranged side by side, and communicate with one end of the air inlet through hole 2112, and communicate with the atomizing chamber 2210 in the atomizing base 22, respectively. It is understood that in other embodiments, the number of the intake passages 2132 is not limited to two, and may be one or more. In this embodiment, the air inlet structure 213 includes two air inlets 2133, the number of the air inlets 2133 may be two, the two air inlets 2133 may be disposed in one-to-one correspondence with the two air inlet passages 2132, and the two air inlets 2133 are disposed toward the heat generating structure 23 and communicate with the atomizing chamber 2210 for outputting the gas of the air inlet passages 2132 to the atomizing chamber 2210. In some embodiments, two convex columns may be disposed on the end surfaces of the air inlet column 2131 opposite to the heat generating structure 23, the two air inlets 2133 may be respectively disposed on the two convex columns, and the two air inlet channels 2132 may be formed in the two convex columns. In this embodiment, the inlet port 2133 may be circular, and alternatively, the diameter of the inlet port 2133 may be 0.8 MM to 1.2MM. When air is supplied, the air enters the air inlet column 2131 through the air inlet through holes 2112, then enters the air inlet channels 2132 respectively, and finally enters the atomizing cavity 2110 through the two air inlets 2133 respectively.

In this embodiment, the air intake structure 213 may be provided with a first liquid storage tank 2134 for storing leaked liquid to prevent the condensed liquid from entering the air intake passage 2132. The first reservoir 2134 can be disposed between the two posts. In this embodiment, the air intake structure 213 further includes two wings 2135 disposed on two opposite sides of the air intake column 2131 and extending outward, one end of each wing 2135 can extend toward the heating structure 23 to form an extending protrusion, a gap is left between the extending protrusion and the convex column, and the first liquid storage tank 2134 can be formed by the gap. It is to be appreciated that in other embodiments, the first reservoir 2134 may be omitted.

Further, in the present embodiment, the atomizing base 21 further includes a positioning pillar 214, and the positioning pillar 214 is used for installing and positioning the conductive structure 28. In some embodiments, the positioning posts 214 are disposed in the body 211 and have two through-holes, and mounting holes for mounting the conductive structures 28 are formed on the inner sides.

Further, in the present embodiment, the atomizing base 22 has a cylindrical structure. The atomizing base 22 includes a base 221 and a matching portion 222, the base 221 can be sleeved on the peripheries of the two support arms 2121, and is clamped with the two support arms 2121 for matching with the atomizing base 21 to accommodate the heat-generating structure 23. The engaging portion 222 is disposed at one end of the seat 221 for engaging with the atomizing cover 26.

As shown in fig. 14, in the present embodiment, the seat body 221 includes an atomizing cavity 2210, a side wall 2211, and an accommodating portion 2212. The atomizing chamber 2210 is surrounded by a sidewall 2211 for providing a working space for the heating structure 23 to heat the liquid atomizing medium. The accommodating portion 2212 is disposed at an end of the atomizing chamber 2210 away from the atomizing base 21, and an accommodating cavity is formed inside the accommodating portion for accommodating the heat-generating structure 23. The side wall 2211 is provided with a vent groove 2213, the vent groove 2213 is communicated with the atomizing cavity 2210, the top wall of the accommodating portion 2212 is recessed so that a gap is reserved between the accommodating portion 2212 and the matching portion 222 for forming a communicating channel 2214, and the communicating channel 2214 is used for communicating the vent groove 2213 with the air outlet 224. The atomized air can be output to the communicating passage 2214 through the ventilating slot 2213, and then output to the air outlet pipe 12 through the air outlet 224. In some embodiments, the mounting opening 2215 is disposed on the seat body 221, specifically, the mounting opening 2215 is disposed on the side wall 2211, and the mounting opening 2215 is communicated with the atomizing cavity 2210, so that the heat-generating structure 23 can be conveniently mounted in the atomizing cavity 2210 and placed in the accommodating portion 2212, thereby improving the mounting efficiency and simplifying the mounting process.

In this embodiment, the cross-sectional dimension of the fitting portion 222 can be smaller than the cross-sectional dimension of the seat body 221. The mating portion 222 can be integrally formed with the base 221. The fitting portion 222 is provided with an air outlet 224, and the air outlet 224 can be located in the middle of the fitting portion 222 and axially disposed through the fitting portion 222, and is communicated with the communicating passage 2214 for outputting the atomizing air. The air outlet 224 can be communicated with the air outlet pipe 12 in the atomizing housing 10, so that the atomizing air can be output to the air outlet pipe 12 for being sucked by a user. In this embodiment, the matching portion 222 is further provided with two lower liquid holes 225, the two lower liquid holes 225 are respectively disposed on two opposite sides of the air outlet 224, and each lower liquid hole 225 is disposed along the axial direction of the matching portion 222, and is communicated with the accommodating portion 2212 and the liquid storage cavity 13, so as to output the liquid atomizing medium in the liquid storage cavity 13 to the heat generating structure 23.

In this embodiment, the atomizing base 22 further includes a ventilation channel 223, and the ventilation channel 223 is disposed on the base 221, specifically on the outer side of the sidewall 2211 of the base 221 and the matching portion 222, and is communicated with the liquid storage cavity 13. The two ventilation passages 223 are located at two opposite sides of the fitting port 2215. The ventilation channel 223 is used to maintain the air pressure balance during the liquid discharging process of the liquid storage chamber 13 in the atomizer, so that the liquid atomization medium in the liquid storage chamber 13 can be conveniently discharged from the liquid discharging hole 225 to the heating structure 23. In some embodiments, the ventilation channel 223 includes a first ventilation slot 2231, and a second ventilation slot 2232; in other embodiments, the ventilation channel 223 may include only the first ventilation slot 2231 or only the second ventilation slot 2232. The first ventilating slots 2231 are multiple, the first ventilating slots 2231 are arranged side by side along the axial direction of the base 221, each first ventilating slot 2231 extends along the circumferential direction of the base 221, and two adjacent first ventilating slots 2231 are communicated with each other. The first ventilation groove 2231 located at an end away from the fitting portion 222 may communicate with the outside. The second ventilating slot 2232 is disposed on the matching portion 222 and located on the side wall of the matching portion 222, one end of the second ventilating slot 2232 is connected to the first ventilating slot 2231, and the other end of the second ventilating slot 223extends to the end wall of the matching portion 222 away from the base 221 for communicating with the liquid storage chamber 13. Specifically, the second ventilating slot 2232 may be connected to the first ventilating slot 2231 closest to the fitting portion 222 of the plurality of first ventilating slots 2231, and further, the first ventilating slot 2231 may be communicated with the reservoir 13, so that the air pressure balance during the draining process of the reservoir 13 may be maintained.

Further, in the present embodiment, the heat generating structure 23 may include a porous body 231 and a heat generating body 232. The porous body 231 may be a ceramic porous body. Of course, it is understood that in other embodiments, the porous body 231 may not be limited to being a ceramic porous body. The porous body 231 further includes a heat generating surface 2311, and the heat generating surface 2311 may be disposed opposite to the air intake structure 213. The heating element 232 may be disposed on the heating surface 2311. The heating element 232 may be a heating wire or a heating film, but it is understood that the heating element 232 may not be limited to being a heating wire or a heating film in other embodiments.

Further, in the present embodiment, the atomizing assembly 20 further includes a cover 24, and the cover 24 can be covered on a part of the heat generating structure 23 and can be installed in the accommodating portion 2212 together with the heat generating structure 23. The cover 24 may be a silicone member, which may function to fix the heat generating structure 23. In some embodiments, the cover 24 may be omitted.

As shown in fig. 15 and 16, in the present embodiment, the atomizing assembly 20 further includes a liquid leakage preventing structure 25, the liquid leakage preventing structure 25 is disposed in the atomizing base 22, and is located between the heat generating structure 23 and the air inlet structure 213, and is disposed opposite to the heat generating surface 2311 for preventing liquid leakage, and specifically, is located at a side of the air inlet structure 213 opposite to the heat generating structure 23. In this embodiment, the weep may include un-atomized liquid and atomized condensed liquid. Through setting up leak protection liquid structure 25 and the face 2311 that generates heat relatively, can collect on the one hand and block the condensate and get into power supply unit B, on the other hand it is more close from heat-generating body 232, can utilize heat radiation of heat-generating body 232 to evaporate the condensate that condenses on it rapidly when heat-generating structure 23 heats liquid atomizing medium, reduces the accumulation of condensate.

Further, in the present embodiment, the entire liquid leakage preventing structure 25 may be made of a high heat conductive material. In particular, in some embodiments, it may be made of steel, which is preferred because of its good thermal conductivity/resistance, low cost, and ease of forming. Of course, it is understood that in other embodiments, the leakage-proof structure 25 may not be limited to be made of steel sheet, but may be made of other materials with good heat conductivity and heat resistance, such as copper alloy, aluminum alloy, etc.

Further, in the present embodiment, the liquid leakage preventing structure 25 includes a sheet-shaped body 251 and a leakage preventing portion 252. The plate 251 can be disposed in the atomizing chamber 2210 for shielding condensate from directly dropping on the atomizing base 21. The leakage-proof portion 252 is disposed on the sheet-shaped body 251 and located between the air inlet structure 213 and the heat generating structure 23, and specifically, it can be covered on one end of the air inlet column 2131 and disposed opposite to the heat generating structure 23. By arranging the liquid leakage preventing structure 25, the occupied space of the atomizing base 22 can be reduced, the atomization gas can be gathered, and the amount of the atomized gas can be increased.

Further, in this embodiment, the sheet body 251 is disposed lengthwise, and two opposite long sides 251a of the sheet body 251 can be inserted into the limiting groove 2216 formed on the inner side of the side wall 2211 of the atomizing base 22. In some embodiments, the liquid leakage preventing structure 25 further includes a limiting portion 2511, the limiting portion 2511 can be disposed on the sheet-like body 251, and specifically, the limiting portion 2511 is located on the long side 251a and is a step formed on the long side 251 a. The limiting portion 2511 can be used for limiting the position of the atomizing base 22 in a matching manner, and specifically, can be limited in a matching manner with a limiting boss formed on the inner side wall of the assembling opening 2215.

Further, in the present embodiment, the leakage-proof portion 252 includes a boss 2520, and the boss 2520 is integrally formed on the sheet-shaped body 251 and protrudes toward the heat-generating structure 23. The boss 2520 has a substantially square cross-section, is covered on the air inlet 2133, and cooperates with the wing 2134 of the air inlet structure 213 for limitation. In this embodiment, the protrusion 2520 can be disposed close to the heat-generating structure 23, and a predetermined distance can be left between the protrusion 2520 and the heat-generating structure 23, in some embodiments, the predetermined distance is less than or equal to 1.5mm, and optionally, in this embodiment, the distance from the protruding end surface of the protrusion 2520 to the heat-generating surface 2311 of the heat-generating structure 23 is 1 to 1.25mm. By positioning the boss 2520 adjacent to the heat generating structure 23, heat generated by the heat generating structure 23 during heating can be facilitated to evaporate condensate located thereon.

Further, in the present embodiment, the leakage-proof portion 252 is provided with a through hole 253, the through hole 253 can be disposed through the boss 2520 in the thickness direction, and has liquid-blocking and air-intake effects, so as to absorb the condensate by capillary absorption, so that the condensate can form a liquid film thereon to prevent the condensate from leaking to the air inlet structure 213, and at the same time, the gas delivered by the air inlet structure 213 can pass through into the atomizing chamber 2210. The through hole 253 is disposed opposite to the heat generating structure 23 and communicates with the air intake structure 213. In this embodiment, the through hole 253 may not be completely overlapped with the air inlet 2133, so that the gas of the air inlet 2133 can be easily introduced into the atomizing chamber 2210 through the through hole 253, and at the same time, the size of the passage of the through hole 253 for the liquid to pass through can be reduced, which helps the liquid to form a liquid film at the through hole, which is not easily dropped from the air inlet 2133 into the air inlet passage 2132 through the through hole 253.

In the present embodiment, the through hole 253 includes a first through hole 2531 and a second through hole 2532. The number of the first through holes 2531 is two, and the two first through holes 2531 are spaced apart along the length direction of the boss 2520. Of course, it is understood that in other embodiments, the first through hole 2531 may not be limited to two, and may be one or more than two. The first through hole 2531 is a main air inlet hole, which can be disposed opposite to the heat generating structure 23 and the air inlet structure 213, and specifically, the first through hole 2531 can be located in the middle of the boss 2520. The first through hole 2531 may have a diameter of 0.6-1.1MM. In some embodiments, the second through holes 2532 can be disposed on the periphery of the first through holes 2531, and specifically, the second through holes 2532 are two sets, and the two sets of second through holes 2532 are respectively disposed on two opposite sides of the two first through holes 2531, that is, the two first through holes 2531 are disposed between the two sets of second through holes 2532. In this embodiment, the second through hole 2532 can assist the first through hole 2531 to intake air, and the second through hole 2532 has a liquid leakage prevention function, which can prevent the condensed liquid from leaking onto the air intake structure 213. In some embodiments, the number of the second through holes 2532 can be greater than the number of the first through holes 2531. Each set of the second through holes 2532 may be two, but it is understood that the number of the second through holes 2532 in each set is not limited to two in other embodiments. The number of the first through holes 2531 is small, which facilitates air intake. The second through holes 2532 are provided in a large number, which facilitates leakage prevention. In the embodiment, the diameter of the second through hole 2532 is smaller than that of the first through hole 2531, so that the liquid leakage preventing effect is better than that of the first through hole 2531. In this embodiment, the diameter of the second through hole 2532 is selected to be 0.3 MM to 0.6MM, which allows gas to pass through but not liquid to form a liquid film.

Further, in the present embodiment, the liquid leakage preventing structure 25 further includes a liquid blocking portion 254, and the liquid blocking portion 254 may be disposed at one end of the sheet body 251 and may be integrally formed with the sheet body 251. In some embodiments, the liquid blocking portion 254 is disposed at a short side 251b of the sheet-shaped body 251 and has a curled structure. When the liquid leakage preventing structure 25 is mounted to the atomizing chamber 2210, the liquid blocking portion 254 may be engaged with a step 2217 at the lower portion of the fitting port 2215 for blocking the leakage of condensate.

Further, in this embodiment, the liquid leakage preventing structure 25 may be provided with two through holes 255, and the two through holes 255 may be located on two opposite sides of the liquid leakage preventing portion 252. The perforations 255 may be square holes. Of course, it will be appreciated that in other embodiments, the perforations 255 may not be limited to square holes. The through hole 255 is used for the conductive structure 28 to pass through, so that the conductive structure 28 and the heat generating structure 23 can be conveniently connected. The size of the through hole 255 may be larger than the cross-sectional size of the conductive structure 28, so that a larger gap is left between the conductive structure 28 and the sheet body 251, thereby preventing the conductive structure 28 and the sheet body 251 from being electrically connected. Of course, it is understood that in other embodiments, the size of the perforations 255 is not limited to being configured to be larger than the cross-sectional size of the conductive structure 28. In some embodiments, an insulating structure may be disposed between the through hole 255 and the conductive structure 28, and the insulating structure may be an insulating material coated on an outer surface of the conductive structure 28, an insulating material coated on a wall of the through hole 255, or an insulating material filling a gap between the through hole 255 and the conductive structure 28, and in some embodiments, a gap between the conductive structure 18 and the through hole 255 may be filled with an insulating material, so as to perform an insulating function and make the fit between the conductive structure 18 and the through hole 255 more secure. Compared with the insulating structure, the design cost is lower by making the size of the through hole 255 larger than the cross-sectional size of the conductive structure 28, because the size of the through hole 255 is larger, in order to ensure that the inner wall of the through hole 255 does not contact with the conductive structure 28, the liquid blocking portion 254 can also play a role of limiting, which can limit the displacement of the liquid leakage prevention structure 25, thereby avoiding the contact of the through hole 255 with the conductive structure 28.

In the present embodiment, the liquid leakage preventing structure 25 includes a supporting surface 256, the supporting surface 236 is disposed opposite to the heat generating surface 2311, and specifically, the supporting surface 256 is formed on the sheet body 251 and the protrusion 2520. The area of the carrying surface 256 is larger than that of the heating surface 2311, and the carrying surface 256 is larger than the heating surface 2311, so that the evaporation area of the carrying surface 256 is large, and the evaporation effect can be improved. In this embodiment, the supporting surface 256 may include a first supporting portion 2561 and a second supporting portion 2562, the first supporting portion 2561 is formed on the protrusion 2520, and is located at the protruding end of the protrusion 2520, and a predetermined distance is left between the protrusion 2520 and the heating surface 2311 (i.e. a predetermined distance is left between the protrusion 2520 and the heating surface 2311), and the distance is smaller than or equal to 1.5mm, so that the first supporting portion 2561 is close enough to the heating structure 23, thereby facilitating the evaporation of the leakage liquid by using the heat of the heating structure 23. The second bearing portion 2562 is formed on the sheet body 251 and located at the periphery of the boss 2520, and has an area larger than that of the heat generating surface 2311, thereby improving evaporation efficiency. When the leaked liquid leaks to the first bearing portion 2561, the leaked liquid can be quickly evaporated by the heating structure 23, if the leaked liquid on the first bearing portion 2561 is not completely evaporated, the leaked liquid can flow to the second bearing portion 2562 under the action of gravity, and the leaked liquid is borne by the second bearing portion 2562, so that the leaked liquid is prevented from dripping onto the atomizing base 21, and when the heating structure 23 continues to heat, the leaked liquid is evaporated for the second time.

Since the carrying surface 256 has a large enough area to block the conductive structure 28 of the heat-generating structure 23, a through hole 255 is required to pass through the conductive structure 28.

In this embodiment, the atomizing assembly 20 can form a multi-layer liquid leakage prevention structure, if the liquid that is not atomized on the heat generating structure 23 and/or the condensate that is formed after atomization leaks, the liquid leakage prevention structure can be firstly carried by the first carrying portion 2561 of the liquid leakage prevention structure 25, and the leakage to the air intake structure 213 is blocked by the through hole 253, and when the heat generating structure 23 generates heat, the heat generated by the heat generating structure 23 is evaporated, and if a part of the heat is not evaporated, the heat can be carried by the second carrying portion 2562. If the liquid in the through hole 253 leaks out, the liquid can be stored in the first reservoir 2134 of the air intake structure 213, so that the liquid can be prevented from leaking out. If the liquid on the second bearing portion 2562 leaks out, the liquid can be stored in the second reservoir 2110 of the atomizing base 21. Through multilayer leak protection, can greatly reduce or avoid liquid to spill outside the atomizing shell 10, and then can improve user's experience and feel.

As shown in fig. 11, in the present embodiment, the atomizing assembly 20 further includes an atomizing cover 26, the atomizing cover 26 can be disposed on the atomizing base 22, and specifically, the atomizing cover 26 can be sleeved on the matching portion 222 and can be detachably connected to the matching portion 222. Of course, it is understood that in other embodiments, the atomizing cap 26 can be integrally formed with the fitting portion 222, and in particular, the atomizing cap 26 can be integrally formed with the fitting portion 222 by injection molding. In this embodiment, a first through hole 261 and a second through hole 262 may be disposed on the atomizing cover 26, the first through hole 261 may be disposed corresponding to the air outlet 224, and the second through hole 262 may be disposed corresponding to the lower liquid outlet 225.

Further, in the present embodiment, the atomizing assembly 20 further includes a sealing structure 27, and the sealing structure 27 may be a sealing ring, and may be disposed on the atomizing base 21 in a sleeved manner, specifically, disposed on the outer periphery of the body 211 of the atomizing base 21, for sealing and connecting the body 211 with the atomizing housing 10.

Further, in the present embodiment, the atomizing assembly 20 further includes a conductive structure 28. The number of the conductive structures 28 may be two. The two conductive structures 28 may be disposed on the atomizing base 21 at intervals, specifically, the conductive structures 28 may be disposed in one-to-one correspondence with the positioning pillars 214, and may be disposed on the positioning pillars 214 and penetrate through the through holes 255 to be connected to the heating element 232, so as to connect the power supply assembly B with the heating element 232. In some embodiments, the conductive structure 28 may be a conductive pillar. Of course, it is understood that in other embodiments, the conductive structure 28 is not limited to being a conductive post, and the conductive structure 28 may also be a conductive sheet or a conductive lead, etc.

As shown in fig. 3 to 7, in some embodiments, the atomizer a further includes a nozzle sleeve 30, the nozzle sleeve 30 is slidably sleeved on the nozzle 113, so that the nozzle sleeve 30 can be opened during suction (see fig. 4); when not in use, the mouthpiece cover 30 is closed (see fig. 5). In some embodiments, the nozzle sheath 30 is cylindrical and includes a cylindrical body 31, wherein the height of the cylindrical body 31 is adapted to the length of the nozzle 113, and the radial dimension of the cylindrical body 31 is larger than the long axis of the nozzle 113. The cylindrical body 31 may be provided with a movable opening 32 through which the suction nozzle 113 passes. The cross section of the movable opening 32 can be oval, and the size of the cross section can be matched with that of the suction nozzle 113. The atomizing shell 10 and the suction nozzle sleeve 30 are provided with a limiting structure for limiting the atomizing shell and the suction nozzle sleeve 30 when the atomizer a is not used. The limiting structure comprises a limiting buckle 1122 and a limiting clamping point; the stopper 1122 is disposed on the second cylindrical member 11 and near the suction nozzle 113. In some embodiments, a clearance 1121 may be disposed on the second pillar 11, the limit buckle 1122 may be disposed at the clearance 1121, and the limit fastening point may be disposed on an inner sidewall of the nozzle cover 30 and near a socket of one end of the nozzle cover 30. When the atomizer A is used for suction, the suction nozzle sleeve 30 can be slid toward the second cylindrical body 112, so that the suction nozzle 113 can penetrate out of the movable opening 32 for suction by a user. When not in use, the nozzle sheath 30 can slide toward the nozzle 113 until the fastening point in the nozzle sheath 30 is engaged with the limit buckle 1122.

Further, in this embodiment, the atomizer a further comprises a nozzle cover 40, and when the atomizer a is not used, the nozzle cover 40 can cover the air outlet 1131 of the suction nozzle 113. The suction nozzle cover 40 is detachably coupled to the suction nozzle holder 30. Specifically, the nozzle cover 40 may include a cover plate 41 and a connecting protrusion 42, the cover plate 41 may include a covering portion 411 and an extending portion 412, the covering portion 411 may cover the air outlet 1131, and the extending portion 412 is disposed at one side of the covering portion 411 and extends outward for disposing the connecting protrusion 42. The connection protrusion 42 can be inserted into the suction nozzle sleeve 40. In some embodiments, the nozzle housing 40 may be provided with a receptacle 33, and the receptacle 33 may be used for receiving the connection protrusion 412.

As shown in fig. 17 to 19, the power supply unit B includes a housing 101, a battery 102, and a bottom cover 103. The case 101 has a cylindrical shape with both ends penetrating therethrough, and an accommodation cavity for accommodating the battery 102 is formed inside. The housing 101 includes a first opening 1011 and a second opening 1012. The first opening 1011 is located at one end of the housing 101 for the atomizer a to fit. The second opening 1012 is disposed at two ends of the housing 101 and is opposite to the first opening 1011. The battery 102 is disposed in the housing 101 for supplying power to the heat generating structure 23 of the atomizer a. The bottom cover 103 is disposed at the second opening 1012 for covering the housing 101.

In some embodiments, the bottom cover 103 includes a cover body 103a, at least one airway post 103b, and a slide cover 103c. The cover 103a can be inserted into the housing 101 from the second opening 1012 to cover the second opening 1012 of the housing 101. In some embodiments, the cover 103a may be cylindrical, and a cavity 1031 is provided inside. In some embodiments, the air guide column 103b includes a first air guide column 1032 and a second air guide column 1033, the first air guide column 1032 and the second air guide column 1033 may be disposed on the cover 103a at intervals, and both the first air guide column 1032 and the second air guide column 1033 are hollow structures with two ends penetrating through. The first airflow channel 1032 and the second airflow channel 1033 may define airflow apertures therein, wherein the airflow apertures of the first airflow channel 1032 may be larger than the airflow apertures of the second airflow channel 1033. The sliding cover 103c may be slidably disposed on the cover body 103a, specifically, the sliding cover 103c may be disposed on a side of the cover body 103a opposite to the cavity 1031, and may slidably shield at least a portion of the air guide posts 103b, specifically, at least a portion of the first air guide posts 1032 or at least a portion of the second air guide posts 1033, so as to adjust the air guiding amount, and further adjust the suction resistance of the atomizer a. It will be appreciated that in other embodiments, the slider cover 103c may be omitted.

In this embodiment, the sliding cover 103c may be provided with a limiting hook 1034, the limiting hook 1034 may penetrate into the cavity 1031 from the bottom cover 103a, and the limiting hook 1034 may be sleeved with a slider 1035 and clamped with the slider 1035. The sliding cover 103c can be moved and driven by the sliding block 1035 to slide and shield the first air guide column 1032 or the second air guide column 1033, so that the air inflow can be adjusted, and the suction resistance of the atomizer A can be adjusted. In some embodiments, the slider 1035 may be disposed between the first air guide column 1032 and the second air guide column 1033 and may be slidable between the first air guide column 1032 and the second air guide column 1033. In some embodiments, the inner side of the bottom cover 103a may be disposed on two limiting blocks 1037 engaged with the slider 1035, the two limiting blocks 1037 may be disposed at two opposite sides of the slider 1035 at intervals, and each limiting block 1037 may be disposed between the first air guide pillar 1032 and the second air guide pillar 1033. In some embodiments, a protruding limiting point 1036 may be disposed on an outer sidewall of the slider 1035, two detents 1037 are disposed on a side of the limiting blocking platform 1037 opposite to the slider 1035, and the two detents 1037 may be spaced along a length direction of the limiting blocking platform 1037 and may cooperate with the protruding limiting point 1036 for limiting. Two limit positions for the sliding of the slider 1035 can be defined by providing two detents 1037.

Fig. 20 to 22 show a second embodiment of the electronic atomizing device of the present invention, which is different from the first embodiment in that the atomizing base 21 can be omitted, and the atomizing base 22 further includes a bottom wall 2218, and the bottom wall 2218 can be connected to the side wall 2211 and is integrally formed with the side wall 2211. In some embodiments, the bottom wall 2218 can be provided with a first air inlet hole 2219, the first air inlet hole 2219 is located at the center of the bottom wall 2218 and is opposite to the heat-generating structure 23, specifically, the first air inlet hole 2219 can be disposed opposite to the heat-generating structure 23 and is communicated with the atomizing cavity 2210, and the first air inlet hole 2219 does not penetrate through the bottom wall 2211. Gas can be delivered into the atomizing chamber 2210 toward the heat-generating structure 23. It is understood that in other embodiments, the first inlet aperture 2219 may not be limited to a central location of the bottom wall 2218.

As shown in fig. 23 to 25, the atomizing base 22 further includes an air inlet passage 226. The air inlet passage 226 may be at least partially disposed on the sidewall 2221 of the seat body 221 and extend along the axial direction of the atomizer, i.e., along the axial direction of the atomizing seat 22. In some embodiments, the air inlet passage 226 may be disposed entirely on the side wall 2211. The air inlet channel 226 may communicate with the atomizing chamber 2210, and may extend from the side wall 2211 to the atomizing chamber 2210 for sending the external air into the atomizing chamber 2210 toward the heat generating structure 23, which may make the air flow directly face the heat generating body 232, further may make the atomization more sufficient, and improve the reliability of the leakage-proof liquid. In some embodiments, the air inlet passage 226 may be disposed on a side of the seat body 221 opposite to the assembling opening 2215, and disposed adjacent to the air exchanging passage 223 in the circumferential direction of the seat body 221, and disposed independently from each other, specifically, the air inlet passage 226 may be disposed between the two air exchanging passages 223, and is isolated from the two air exchanging passages 223 and not directly connected thereto. In some embodiments, the length of the air inlet passage 226 in the circumferential direction of the side wall 2211 is less than or equal to one-half of the circumference of the seat body 221.

Further, in the present embodiment, the intake passage 226 may include two intake branches 226a, and it is understood that, in other embodiments, the number of the intake branches 226a may not be limited to two, and may be one or more. In this embodiment, the two air inlet branches 226a can be disposed side by side along the circumferential direction of the base 221 and symmetrically disposed, and specifically, the two air inlet branches 226a can be disposed symmetrically left and right and communicate with the first air inlet hole 2219, so that the air delivered by the two air inlet branches 226a can be collected to the first air inlet hole 2219 and delivered to the atomizing chamber 2210 through the first air inlet hole 2219 and directly led to the heating element 232, thereby allowing air inlet more concentrated, atomization more sufficient, and suction more smooth. In this embodiment, the air inlet passage 226 further includes a communication section 226b, the communication section 226b may extend from the side wall 2211 toward the atomizing chamber 2210, and specifically, the communication section 226b may penetrate from the side wall 2211 into the bottom wall 2218 and be disposed on the bottom wall 2218 along the radial direction of the bottom wall 2218, and one end thereof is communicated with the air inlet branch 226, and the other end thereof is communicated with the first air inlet hole 2219.

Further, in the present embodiment, the air intake passage 226 may include at least one backflow barrier 2260. Specifically, each intake branch 226 may be provided with at least one backflow barrier 2260. In this embodiment, the backflow barrier 2260 may be disposed on the side wall 2211 to increase the length of the whole air intake path, so as to increase the difficulty of the condensate flowing out of the atomizing chamber 2210 and effectively improve the function of preventing the condensate from leaking. In this embodiment, the backflow barrier 2260 may be multiple, and the backflow barriers 2260 may meet end-to-end to form a winding smooth transition. Of course, it is understood that in other embodiments, the number of the first and second groups may be one, or not limited to a plurality. Each of the backflow barriers 2260 may include a straight portion 2261 and a bent portion 2262; of course, it is understood that in other embodiments, the straight portion 2261 and the bent portion 2262 are not limited to one, and may also be two. The straight portion 2261 can extend along the axial direction of the atomizer, i.e., can be disposed on the sidewall 2211 along the axial direction of the seat 221, and the bent portion 2262 can be connected to one end of the straight portion 2261. In two adjacent backflow barriers 2260, a bent portion 2262 of one of the backflow barriers 2260 may be connected to a straight portion 2261 of the other backflow barrier 2260. A bent portion of a backflow preventing portion 2260 adjacent to the communication passage 226b may be connected to the communication passage 226 b. Through a plurality of backward flow obstacles 2260 (at least 540 degrees encircle), lengthened the route of admitting air, and then increased the condensate and flowed the degree of difficulty from the atomizing chamber, effectively promoted the prevention of liquid leakage function.

In some embodiments, the bottom wall 2218 can have a second inlet hole 227; the second intake holes 227 are provided through the bottom wall 2218 in the thickness direction of the bottom wall 2210, may extend from the bottom wall 2218 to the side wall 2211, and may communicate with the outside and the intake passage 226 provided in the side wall 2211 for sending the outside air into the intake passage 226. The second air inlet holes 227 are separated from the first air inlet holes 221 and are disposed independently, i.e., the second air inlet holes 227 are not directly connected to the first air inlet holes 221. In some embodiments, the number of the second air intake holes 227 can be two, and the two second air intake holes 227 can be spaced apart and respectively communicate with the two air intake branches 226 a. The external air can enter the air inlet branch 226a through the second air inlet hole 227, sequentially pass through the plurality of backflow barriers 2260, enter the communication channel 226b, enter the atomizing cavity 2210 through the first air inlet hole 2219, and directly reach the heating element 232. Of course, it is understood that in other embodiments, the second air intake holes 227 may not be limited to two.

It is to be understood that the foregoing examples merely represent preferred embodiments of the present invention, and that the description thereof is more specific and detailed, but not intended to limit the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims (20)

1. An atomizer, characterized in that, including an atomizing chamber (2210), a heating structure (23) arranged in the atomizing chamber (2210), an air intake structure (213) communicated with the atomizing chamber (2210) and a liquid leakage prevention structure (25); the liquid leakage prevention structure (25) is arranged between the heating structure (23) and the air inlet structure (213), the liquid leakage prevention structure (25) comprises a bearing surface (256), and the heating structure (23) comprises a heating surface (2311); the bearing surface (256) is arranged opposite to the heating surface (2311);

the area of the bearing surface (256) is larger than that of the heating surface (2311), and the bearing surface (256) is used for bearing leaked liquid and/or evaporating the leaked liquid by utilizing the heat of the heating structure (23).

2. A nebulizer as claimed in claim 1, characterised in that said liquid leakage preventing structure (25) comprises a sheet-like body (251) and a leakage preventing portion (252);

the leakage preventing portion (252) includes a boss (2520); the boss (2520) is provided on the sheet-like body (251) and protrudes toward the heat generation surface (2311);

the bearing surface (256) is formed on the sheet body (251) and the boss (2520).

3. An atomizer according to claim 2, characterized in that the bearing surface (256) comprises a first bearing portion (2561) formed on the boss (2520); a set distance is reserved between the first bearing part (2561) and the heating surface (2311);

the set distance is less than or equal to 1.5mm.

4. A nebulizer as claimed in claim 2, wherein the air inlet structure (213) comprises an air inlet (2133) communicating with the nebulization chamber (2210);

the boss (2520) covers the air inlet (2133).

5. Atomiser according to claim 1, characterised in that the liquid-tight structure (25) comprises a highly heat-conductive material.

6. A nebulizer as claimed in claim 1, further comprising a nebulizing base (21); the air inlet structure (213) is arranged on the atomizing base (21); the air inlet structure (213) is arranged opposite to the heating structure (23), and the height of the air inlet structure is greater than or equal to that of the atomizing base (21); the liquid leakage prevention structure (25) is arranged on one side of the air inlet structure (213) opposite to the heating structure (23).

7. The atomizer according to claim 1, characterized in that the liquid leakage preventing structure (25) comprises a leakage preventing portion (252), a through hole (253) having liquid suction and air intake functions is provided on the leakage preventing portion (252);

the through hole (253) is arranged opposite to the heat generating structure (23) and is communicated with the air inlet structure (213).

8. Atomiser according to claim 7, characterised in that the through hole (253) comprises a first through hole (2531) for the main inlet air.

9. A nebulizer as claimed in claim 8, wherein the through hole (253) comprises a second through hole (2532); the second through hole (2532) is arranged on the periphery of the first through hole (2531) and is used for assisting air intake and preventing liquid leakage.

10. A nebulizer as claimed in claim 9, wherein the number of second through holes (2532) is greater than the number of first through holes (2531).

11. A nebulizer as claimed in claim 9, characterised in that the aperture of the second through hole (2532) is smaller than the aperture of the first through hole (2531).

12. Atomiser according to claim 11, characterised in that the first through hole (2531) has a bore diameter of 0.6-1.1mm.

13. Atomiser according to claim 11, characterised in that the second through hole (2532) has a hole diameter of 0.3-0.6mm.

14. A nebulizer as claimed in claim 8, wherein the air inlet structure (213) comprises an air inlet (2133) communicating with the nebulization chamber (2210);

the through hole (253) and the air inlet (2133) are not completely overlapped.

15. A nebulizer as claimed in claim 1, wherein the air intake structure (213) is provided with a first reservoir (2134).

16. A nebulizer as claimed in claim 1, further comprising a nebulizing base (21);

and a second liquid storage tank (2110) is arranged on the atomizing base (21) and is used for receiving the condensate which is leaked to the atomizing base (21) by the liquid leakage prevention structure (25).

17. A nebulizer as claimed in claim 1, further comprising an electrically conductive structure (28);

the liquid leakage preventing structure (25) is provided with a through hole (255) for the conductive structure (28) to penetrate through so as to be connected with the heating structure (23);

the size of the perforations (255) is greater than the cross-sectional size of the conductive structure (28);

and/or an insulating structure is arranged between the conductive structure (28) and the through hole.

18. A nebulizer as claimed in claim 1, further comprising a nebulizing seat (22); the nebulization chamber (2210) being formed in the nebulization seat (22); the heating structure (23) and the liquid leakage prevention structure (25) are detachably arranged in the atomizing base (22);

the liquid leakage prevention structure (25) comprises a liquid blocking part (254) matched with the atomizing seat (22).

19. A nebulizer as claimed in claim 1, further comprising a nebulizing seat (22); the liquid leakage prevention structure (25) comprises a limiting part (2511) matched with the atomizing seat (22);

and a limit groove (2216) matched with the liquid leakage prevention structure (25) is formed in the side wall (221) of the atomizing seat (22).

20. An electronic atomisation device, characterized in that it comprises an atomiser (a) according to any of the claims 1 to 19, and a power supply assembly (B) connected to the atomiser (a).

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