CN214710376U

CN214710376U - Atomizer and electronic atomization device

Info

Publication number: CN214710376U
Application number: CN202023302851.1U
Authority: CN
Inventors: 周卫东; 陆丰文; 王敏; 朱小安
Original assignee: Jiangmen Moore Technology Ltd
Current assignee: Jiangmen Moore Technology Ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-11-16
Anticipated expiration: 2030-12-30
Also published as: US20220202086A1; EP4029388A1

Abstract

The utility model relates to an atomizer and electronic atomization device, the atomizer comprises a top cover component and an atomization core at least partially accommodated in the top cover component, a flow guide channel and an air guide hole are arranged in the top cover component, and an at least partially convex or concave structure is formed between the flow guide channel and the air guide hole; the atomization core discharges aerosol after liquid atomization into the air guide hole through the flow guide channel. When the condensate and the exudate of atomizer let out leakage liquid and flow to the water conservancy diversion passageway, above-mentioned structure will be to letting out leakage liquid formation absorption and hindrance effect, avoid letting out leakage liquid and get into the water conservancy diversion passageway and flow outside the atomizer through the gas guide hole to prevent that the atomizer from producing and leaking.

Description

Atomizer and electronic atomization device

Technical Field

The utility model relates to an atomizing technical field especially relates to an atomizer and contain electronic atomization device of this atomizer.

Background

Electronic nebulizing devices typically include a nebulizer and a power source that powers the nebulizer, which converts electrical energy into heat in order to nebulize a liquid into an aerosol that can be drawn by a user, who will draw the liquid from a suction channel of the nebulizer when the aerosol is drawn at a suction nozzle at the end of the suction channel. Meanwhile, during transportation or storage of the atomizer, the atomizer may be inverted or tilted such that the nozzle opening is disposed downward, resulting in leakage of the liquid in the suction passage from the nozzle opening to the outside of the atomizer.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem how prevent that the atomizer from producing and produce liquid and leak.

An atomizer comprises a top cover assembly and an atomizing core at least partially accommodated in the top cover assembly, wherein a flow guide channel and an air guide hole are formed in the top cover assembly, and a structure at least partially protruding or sinking is formed between the flow guide channel and the air guide hole; the atomization core discharges aerosol after liquid atomization into the air guide hole through the flow guide channel.

In one embodiment, the top cover assembly has an inner wall surface defining the boundary of the flow guide channel, the convex or concave structure is arranged on the inner wall surface, and the central axes of the flow guide channel and the air guide hole are arranged at an included angle.

In one embodiment, the cap assembly further has an outer wall surface connected to the inner wall surface, the flow guide passage extends through the outer wall surface, the inner wall surface includes an inner side wall surface parallel to a central axis of the atomizer, and at least a portion of the inner side wall surface is recessed to form a first groove extending through the outer wall surface.

In one embodiment, the top cover assembly further comprises a second groove communicated with the first groove, and the concave direction of the second groove and the concave direction of the first groove form a set included angle.

In one embodiment, the cap assembly further has a second inner bottom wall surface for defining a boundary of the second groove portion, the second inner bottom wall surface is concavely formed with a micro groove, a groove width of the micro groove is smaller than that of the second groove, and an extending direction of the micro groove is arranged at an included angle with a central axis of the atomizer.

In one embodiment, the inner wall surface comprises an inner top wall surface which is arranged at an included angle with the central axis of the atomizer and is connected with the inner side wall surface, and a third groove which penetrates through the outer wall surface is formed in a concave mode on the inner top wall surface.

In one embodiment, the atomizer further comprises a housing, the top cover assembly and the atomizing core are at least partially accommodated in the housing, the housing is provided with a suction hole coaxial with the air guide hole, the air guide hole is communicated between the suction hole and the flow guide channel, and an end of the suction hole far away from the air guide hole forms a suction nozzle communicated with the outside.

In one embodiment, the housing includes an outer shell and a center post, the center post is located within the outer shell and inserted in the air-guide hole, the center post includes a tip portion located in the air-guide hole, the top cap assembly further has a first inner surface bounding the air-guide hole, and a gap exists between the tip portion and the first inner surface.

In one embodiment, the central column has a second inner surface defining the boundary of the suction hole, and the second inner surface is concavely formed with a sunken groove extending along the central axis direction of the suction hole.

An electronic atomising device comprising a power supply and an atomiser as in any one of the above.

The utility model discloses a technical effect of an embodiment is: due to the at least partially protruding or at least partially recessed structure formed between the flow guide channel and the air guide hole. When the condensate, the exudate and other leakage liquid of the atomizer flow to the flow guide channel, the above partially protruding or partially recessed structure can adsorb and obstruct the leakage liquid, so as to prevent the leakage liquid from entering the flow guide channel and flowing out of the atomizer through the air guide hole, thereby preventing the atomizer from leaking.

Drawings

Fig. 1 is a schematic perspective view of an atomizer according to an embodiment;

FIG. 2 is a schematic view of the atomizer shown in FIG. 1 in an exploded configuration;

FIG. 3 is a first directional schematic plan sectional view of the atomizer of FIG. 1;

FIG. 4 is a schematic perspective cross-sectional view of the atomizer shown in FIG. 1 in a first direction;

FIG. 5 is a schematic perspective cross-sectional view of the atomizer shown in FIG. 1 in a second direction;

FIG. 6 is a second directional plan sectional view of the atomizer shown in FIG. 1;

FIG. 7 is a schematic view of a partially exploded cross-sectional perspective view of the atomizer shown in FIG. 1;

FIG. 8 is a schematic perspective view of the atomizer shown in FIG. 1 with the heat generating top cover upright;

FIG. 9 is a schematic perspective view of the atomizer shown in FIG. 1 with the heat generating top cover tilted;

FIG. 10 is a schematic cross-sectional side view of a heat generating top cover of the atomizer shown in FIG. 1;

FIG. 11 is a schematic longitudinal perspective sectional view of a heat generating top cover of the atomizer shown in FIG. 1;

FIG. 12 is a schematic front view of a heat generating top cover of the atomizer shown in FIG. 1;

FIG. 13 is a schematic view of a partial plan view of a heat generating top cover of the atomizer shown in FIG. 1;

FIG. 14 is a schematic perspective view of the atomizer of FIG. 1 with the seal upright;

FIG. 15 is a schematic perspective view of the atomizer of FIG. 1 with the seal inverted;

FIG. 16 is a schematic top view of the seal of the atomizer of FIG. 1;

FIG. 17 is a schematic perspective cross-sectional view of a seal in the atomizer of FIG. 1;

FIG. 18 is a schematic perspective view of a base of the atomizer shown in FIG. 1;

FIG. 19 is a schematic top view of the base of the atomizer of FIG. 1;

fig. 20 is a schematic perspective sectional view of the base of the atomizer shown in fig. 1.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "inner", "outer", "left", "right" and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Referring to fig. 1, 2 and 3, an embodiment of the present invention provides an electronic atomization device, which includes an atomizer 10 and a power supply, the atomizer 10 is detachably connected to the power supply, the power supply supplies power to the atomizer 10, the atomizer 10 converts electric energy into heat energy, so as to atomize liquid to form aerosol for a user to suck, and the liquid can be aerosol generating substrate such as oil liquid. The atomizer 10 includes a housing 100, a cap assembly 200, a seal 300, a baffle 360, a base 400, an atomizing wick 510, and a wick 520. In other embodiments, the atomizer 10 may be packaged together with the power source in the same housing and not be detachable. In addition, the components of the atomizer 10 such as the baffle 360 and the base 400 may be omitted as required, and are not limited herein.

Referring to fig. 3, 4 and 5, the housing 100 includes an outer shell 110 and a center post 120, and the center post 120 is connected to the outer shell 110 and located in a cavity defined by the outer shell 110. A suction hole 121 is formed in the central pillar 120, and an end (upper end) of the suction hole 121 forms a suction nozzle opening 121a, and the suction nozzle opening 121a is directly communicated with the outside, and a user can suck aerosol at the suction nozzle opening 121 a. The central column 120 includes a tip portion 123 disposed away from the nozzle opening 121a, and the cross-sectional dimension of the tip portion 123 gradually decreases in a top-down direction, so that the tip portion 123 is substantially frustum-shaped. The central column 120 has a surface defining the boundary of the suction hole 121, which is referred to as a second inner surface 122, and the second inner surface 122 is recessed to form a sunken groove 122a, and the sunken groove 122a extends along the direction of the central axis of the suction hole 121.

Referring to fig. 4, 5 and 6, the top cover assembly 200 is disposed in the cavity defined by the housing 110, the top cover assembly 200 includes a heating top cover 210 and a sealing portion 220, the sealing portion 220 is sleeved on the heating top cover 210, and the sealing portion 220 and the housing 100 together define a liquid storage cavity for storing liquid. The heating top cover 210 is provided with an air guide hole 211 and a guide channel 212. The lower end of the center post 120 is inserted into the air guide hole 211, and the center post 120 and the air guide hole 211 may form an interference fit relationship. The tip portion 123 is located in the air guide hole 211 such that the suction hole 121 and the air guide hole 211 are both coaxially disposed, and the suction hole 121 and the air guide hole 211 together form the suction passage 11, obviously, a central axis of the suction passage 11 extends in a vertical direction. The top cap assembly 200 has a surface defining the boundary of the air vent 211, the surface is denoted as a first inner surface 211a, and the other portion of the center post 120 abuts against the first inner surface 211a, so that the center post 120 is in interference fit with the air vent 211; the tip portion 123 of the central pillar 120 and the first inner surface 211a are spaced apart from each other in a direction perpendicular to the central axis of the air guide hole 211 such that an annular gap 124 is formed between the tip portion 123 and the first inner surface 211 a.

Referring to fig. 8, 9 and 10, the heating top cover 210 has an inner wall surface 213 and an outer wall surface 214, and the blocking portion 220 is disposed on the outer wall surface 214. The inner wall surface 213 defines a boundary of the flow guide channel 212, and the flow guide channel 212 penetrates the outer wall surface 214 and the first inner surface 211a, so that the flow guide channel 212 is directly communicated with the air guide hole 211, that is, the air guide hole 211 is communicated between the flow guide channel 212 and the air suction hole 121. The inner wall surface 213 includes two inner side wall surfaces 213a and two inner top wall surfaces 213b, the two inner side wall surfaces 213a are disposed opposite to each other, and the inner top wall surface 213b is connected between the two inner side wall surfaces 213a, so that the two inner side wall surfaces 213a are located on the same side (i.e., lower side) of the inner top wall surface 213 b. The inner side wall surface 213a may be disposed in parallel with the central axis of the suction passage 11, and the inner ceiling wall surface 213b may be disposed in parallel with the central axis of the suction passage 11, for example, the inner ceiling wall surface 213b may be perpendicular to the central axis of the suction passage 11. In short, the inner wall surface 213a extends in the vertical direction, and the inner top wall surface 213b extends in the horizontal direction. The central axis of the flow guide channel 212 intersects the central axis of the air suction channel 11 at an angle, which may be 90 °, for example, in which case the air suction channel 11 extends in a vertical direction and the flow guide channel 212 extends in a horizontal direction.

Referring to fig. 9, 11 and 12, a portion of the inner sidewall 213a away from the air hole 211 is recessed in the left-right direction to form a first groove 213c, and the first groove 213c penetrates the outer sidewall 214. The heat generating top cover 210 further has a first inner bottom wall surface 215, the first inner bottom wall surface 215 defining a partial boundary of a first groove 213c, the first inner bottom wall surface 215 being connected to an unrecessed portion of the inner side wall surface 213a disposed adjacent to the air-guide hole 211, the first inner bottom wall surface 215 having a second groove 215a concavely formed in the front-rear direction. Obviously, the first groove 213c and the second groove 215a communicate with each other, and the recessed directions of the two grooves may be set at an angle, for example, perpendicular to each other. The heat generating top cover 210 further has a second inner bottom wall surface 216, the second inner surface 122 defines a partial boundary of a second groove 215a, a micro groove 216a is concavely formed on the second inner bottom wall surface 216 in the front-rear direction, the width of the micro groove 216a is smaller than that of the second groove 215a, and the extending direction of the micro groove 216a is arranged at an angle to the central axis of the suction passage 11. For example, referring to fig. 13, the extending direction of the micro grooves 216a is perpendicular to the central axis of the air suction passage 11, and in this case, the extending direction of the micro grooves 216a is a horizontal direction. For another example, the extending direction of the micro grooves 216a forms an acute angle with the central axis of the air suction channel 11, and at this time, the extending direction of the micro grooves 216a forms a certain inclination angle with the horizontal direction. The number of micro grooves 216a may be plural, and a plurality of micro grooves 216a are provided at intervals on the second inner bottom wall surface 216. A portion of the inner top wall surface 213b away from the air hole 211 is recessed upward to form a third groove 213d, and the third groove 213d also penetrates the outer wall surface 214.

The first groove 213c, the second groove 215a, the third groove 213d and the micro-groove 216a are actually recessed structures formed on the inner wall surface 213, and obviously, the recessed structures are located between the air guide channel 212 and the air guide hole 211, and in other embodiments, protrusions may be further provided on the inner wall surface 213 to form protruding structures.

Referring to fig. 4, 6 and 7, the sealing member 300 is connected to the heating top cover 210, the sealing member 300, the heating top cover 210 and the casing 110 may together define a flow guiding channel 12, the flow guiding channel 12 is communicated with the flow guiding channel 212, the atomizing core 510 is at least partially located in the flow guiding channel 12, and obviously, the atomizing core 510 is located outside the air suction channel 11 and the flow guiding channel 212. Atomizing core 510 can include the drain and generate heat the piece, and the drain can be for adopting the columnar structure that cotton material made, and the piece that generates heat can the metal material make, generates heat piece and power electric connection, and when the power was to generating heat the piece power supply, the piece that generates heat can turn into heat energy with the electric energy. The heating part can be in a spiral shape, the heating part is sleeved on the liquid guide part, the heating part can be understood as a spiral winding wire on the liquid guide part, the liquid guide part is used for absorbing liquid in the liquid storage cavity, when the heating part is electrified, the heating part can atomize the liquid on the liquid guide part to form aerosol, and the aerosol is firstly discharged into the drainage channel 12. Of course, the liquid guiding component can adopt a porous ceramic matrix, the heating component is attached to the surface of the porous ceramic matrix, the porous ceramic matrix absorbs the liquid in the liquid storage cavity through the capillary action of the micropores, and when the heating component is powered on, the liquid on the porous ceramic matrix can be atomized to form aerosol.

The flow guide channel 12 comprises an atomizing cavity 350 and a flow guide hole 340, the sealing member 300, the heating top cover 210 and the outer shell 110 can jointly enclose the atomizing cavity 350, the atomizing core 510 is at least partially positioned in the atomizing cavity 350, and the aerosol of the atomizing core 510 is firstly discharged into the atomizing cavity 350. Referring to fig. 16 and 17, the flow guide hole 340 is formed on the sealing member 300, the sealing member 300 has a mounting surface 310 and a connecting surface 320, the mounting surface 310 and the connecting surface 320 are oppositely oriented, the connecting surface 320 is disposed upward, the mounting surface 310 is disposed downward, that is, the connecting surface 320 is disposed opposite to the mounting surface 310, and the connecting surface 320 defines part of the boundary of the atomizing chamber 350. The sealing member 300 includes a boss 330, the boss 330 is located in the atomizing chamber 350, a lower end of the boss 330 is fixedly connected to the connecting surface 320, an upper end of the boss 330 is a free end and protrudes to a height of one end of the connecting surface 320, that is, the boss 330 protrudes relative to the connecting surface 320. The boss 330 has a free end surface 331, and the free end surface 331 and the connection surface 320 are spaced apart from each other in the vertical direction, and in a popular way, the free end surface 331 is higher than the connection surface 320 by a certain height. The upper end of the flow guide hole 340 penetrates the free end surface 331, so that the flow guide hole 340 is directly communicated with the atomizing chamber 350. The lower end of the drainage hole 340 penetrates the mounting surface 310 to form an input port 341.

Referring to fig. 6, 18 and 17, at least a portion of the base 400 is received in the cavity defined by the housing 110, the sealing member 300 is disposed on the base 400, the sealing member 300 and the base 400 together define an air guide cavity 410, the mounting surface 310 defines a portion of the boundary of the air guide cavity 410, and the air guide cavity 410 is directly communicated with the air guide cavity 340 in view of the input port 341 disposed on the mounting surface 310. Referring to fig. 14 and 15, the baffle 360 may be generally plate-like in configuration, the baffle 360 being attached to the mounting surface 310 and disposed at an edge of the inlet 341, the baffle 360 being configured to transport liquid from the inlet 341 and into the airway cavity 410. The liquid absorbing member 520 is disposed in the air guide chamber 410, and the liquid output from the flow guide 360 can be absorbed by the liquid absorbing member 520, thereby preventing the liquid from freely flowing in the air guide chamber 410. An air inlet hole 441 is formed on the base 400, and the air inlet hole 441 is communicated with the outside and the air guide cavity 410.

Referring to fig. 18, 19 and 20, the base 400 has a fixing surface 420, and the fixing surface 420 is disposed toward the mounting surface 310 and defines a partial boundary of the air guide chamber 410. The base 400 further includes a post 430, and the post 430 is located within the gas directing chamber 410. The lower end of the protruding pillar 430 is a fixed end and is fixedly connected with the fixed surface 420, and the upper end of the protruding pillar 430 is a free end and protrudes a certain height relative to the fixed surface 420. At least a portion of the air inlet passage 440 is disposed inside the stud 430, and the air inlet passage 440 has an output port 442a through which air flows out, the output port 442a being disposed on the stud 430. The air inlet passage 440 is directly communicated with the air guide chamber 410 through the outlet port 442a, and a distance is maintained between the outlet port 442a and the fixing surface 420, and at the same time, the outlet port 442a is higher than the fixing surface 420.

In some embodiments, post 430 has a top end 431 and a side periphery 432, side periphery 432 may be perpendicular to top end 431, top end 431 is vertically spaced from stationary surface 420, and top end 431 is upwardly disposed. The side circumferential surface 432 is connected between the top end surface 431 and the fixing surface 420, the air inlet passage 440 includes an air inlet hole 441 and an output groove 442, the air inlet hole 441 is communicated with the outside, the output groove 442 is communicated with the air guide chamber 410 and the air inlet hole 441 simultaneously, the output groove 442 penetrates through the side circumferential surface 432 and the top end surface 431 simultaneously, and the output port 442a is located on the output groove 442. Specifically, when the seal 300 is disposed on the base 400, the mounting surface 310 of the seal 300 may be directly pressed against the top end surface 431 of the stud 430, so that the mounting surface 310 blocks the opening of the output slot 442 on the top end surface 431, and at this time, the opening of the output slot 442 on the side circumferential surface 432 will form the output port 442 a.

In other embodiments, for example, mounting surface 310 may be spaced apart from top end surface 431, i.e., mounting surface 310 does not cover the opening of output slot 442 on top end surface 431, in which case the openings of output slot 442 on top end surface 431 and side surface 432 together form output port 442 a. For another example, the output slot 442 may extend through only the top end surface 431, and the opening of the output slot 442 on the top end surface 431 forms the output port 442a, which is understood to be a horizontally disposed output port 442a in view of the top end surface 431 being a horizontal plane. For another example, the output slot 442 may only penetrate through the side circumferential surface 432, and the opening of the output slot 442 on the side circumferential surface 432 forms the output port 442a, which can be understood as the output port 442a being vertically disposed in view of the vertical surface of the side circumferential surface 432.

Referring to fig. 3 and 7, in some embodiments, a plane perpendicular to the axial direction of the atomizer 10 is taken as a reference plane, and obviously, the reference plane is perpendicular to the central axis of the suction passage 11, i.e., the reference plane is a horizontal plane. The distance between the orthographic projections of both the input port 341 and the output port 442a on the reference plane is equal to or greater than zero, in other words, both the input port 341 and the output port 442a are arranged offset in the horizontal direction. Similarly, the distance between the orthographic projections of the flow guide 360 and the output port 442a on the reference plane is greater than or equal to zero, in other words, the flow guide 360 and the output port 442a are arranged in a staggered manner in the horizontal direction. Wherein, two dotted lines in fig. 7 are the projection trajectories of the input port 341 and the diversion member 360 on the reference plane, respectively. The distance between the orthographic projections of the flow guide piece 360 and the drainage holes 340 on the reference plane is larger than or equal to zero, so that the flow guide piece 360 and the drainage holes 340 are arranged in a staggered mode.

When a user sucks at the suction nozzle opening 121a, the external air enters the atomizing chamber 350 through the air inlet channel 440, the air guide chamber 410 and the flow guide holes 340 in sequence to carry the aerosol, and then the air carries the aerosol to reach the suction nozzle opening 121a through the flow guide channel 212, the air guide holes 211 and the suction hole 121 in sequence, so that the aerosol is sucked by the user. In fig. 4, 6 and 20, the flow locus of the gas is indicated by a dotted arrow.

Typically, when the atomizer 10 is deactivated, the aerosol trapped in the atomizing chamber 350 will liquefy to form a condensate, and at the same time, an exudate will form on the atomizing core 510, which exudate will drip from the atomizing core 510, both of which exudate and condensate together form a leak. Since the sealing member 300 includes the boss 330 located in the atomizing chamber 350, the boss 330 protrudes from the connecting surface 320, and at this time, part of the leakage liquid will adhere to the connecting surface 320, that is, the leakage liquid is stored in the low-lying space of the atomizing chamber 350 located at the edge of the boss 330, and the drainage hole 340 penetrates through the free end surface 331 of the boss 330 to communicate with the atomizing chamber 350, so that the liquid level of the leakage liquid stored in the low-lying space is difficult to reach the free end surface 331, the leakage liquid in the low-lying space is prevented from entering the drainage hole 340, and the low-lying space in the atomizing chamber 350 can effectively exert the function of storing the leakage liquid.

Of course, part of the exudate will directly drop into the drainage holes 340, and at the same time, the aerosol will also enter into the drainage holes 340 from the atomizing chamber 350, and this part of the aerosol will also liquefy in the drainage holes 340 to form condensate, in short, part of the leaked liquid will not be stored in the above-mentioned low-lying space, but will be transmitted from the drainage holes 340 to the diversion member 360 through the input port 341, and finally the leaked liquid on the diversion member 360 will drop on the liquid absorbing member 520. Because the diversion piece 360 and the delivery outlet 442a are arranged in a staggered manner in the horizontal direction, leakage liquid dripping on the diversion piece 360 cannot fall into the delivery outlet 442a, the leakage liquid is prevented from leaking out of the atomizer 10 from the air inlet channel 440 and entering a power supply, the corrosion of the leakage liquid to the power supply and even the explosion of the power supply are prevented, and the service life and the safety of the power supply are improved. Moreover, the input port 341 and the output port 442a are also arranged in a staggered manner in the horizontal direction, so that even if part of the leakage liquid can not enter the flow guide 360 and directly drops from the input port 341, the leakage liquid dropping from the input port 341 can be effectively prevented from directly entering the output port 442a, and the atomizer 10 where the leakage liquid leaks from the air inlet channel 440 can be effectively avoided. In view of the fact that the side circumferential surface 432 can be perpendicularly connected to the tip end surface 431, in the case where the output port 442a is located on the vertically disposed side circumferential surface 432, it is possible to make the output port 442a vertically disposed, and even if the output port 442a and the input port 341 are not disposed with a misalignment, when leakage liquid drips from the input port 341, it is difficult for the dripping leakage liquid to enter the output port 442 a.

When the guiding member 360 guides the leakage liquid into the gas guiding cavity 410, the leakage liquid is also stored in the low-lying space at the edge of the convex pillar 430, and since a certain distance is kept between the output port 442a and the fixing surface 420, that is, the output port 442a is higher than the fixing surface 420, it is ensured that the liquid level in the low-lying space cannot reach the output port 442a, and the leakage liquid from the gas inlet channel 440 is avoided. Further, the liquid absorbing member 520 can be fixed on the fixing surface 420 of the base 400, the leakage liquid on the flow guide member 360 can be directly input into the liquid absorbing member 520, and the liquid can be effectively prevented from freely flowing in the air guide cavity 410 through the absorption and restriction effect of the liquid absorbing member 520, so that the liquid level in the low-lying space in the air guide cavity 410 is prevented from reaching the output port 442 a.

During the process of suction through the mouthpiece 121a, the user can suck the condensate and the non-liquefied small suspension liquid droplets in the atomizing chamber 350 into the flow guide channel 212 under the action of negative pressure, and at this time, due to the concave structure formed by the first groove 213c, the second groove 215a, the third groove 213d and the micro groove 216a, the concave structure can block and adsorb the leakage liquid formed by the condensate and the small suspension liquid droplets, so that the leakage liquid is accommodated in the concave structure and is difficult to enter the suction channel 11, and the user can suck the leakage liquid into the oral cavity. Meanwhile, since the annular gap 124 is formed between the tip portion 123 of the central pillar 120 and the first inner surface 211a, even if the leakage liquid enters into the air guide hole 211 from the air guide channel 212, the annular gap will also serve as a containment and blocking function for the leakage liquid, and prevent the leakage liquid from entering into the suction nozzle port 121a to be absorbed by the user. Moreover, the sunk groove 122a is concavely formed on the second surface of the central post 120, so that even if the leakage liquid enters the air inlet hole 441 from the air guide hole 211, the sunk groove 122a also has the function of containing and blocking the leakage liquid, and the leakage liquid is prevented from entering the suction nozzle port 121a to be absorbed by a user. Therefore, the leakage liquid can be effectively prevented from being absorbed by the user by the triple hindrance of the recess structure on the inner wall surface 213, the annular gap 124, and the sink groove 122 a.

When the atomizer 10 is tilted or inverted, the nozzle opening 121a is disposed downward, the condensate in the atomizing chamber 350 and the exudate dropping from the atomizing core 510 into the atomizing chamber 350 constitute leakage liquid, and the leakage liquid flows from the atomizing chamber 350 to the diversion channel 212 under the action of gravity. For the same reason, referring to the above analysis, the leakage liquid can be effectively prevented from flowing out of the atomizer 10 from the nozzle opening 121a by the triple-barrier action of the recessed structure on the inner wall surface 213, the annular gap 124, and the sink 122 a.

Therefore, the atomizer 10 can effectively prevent leakage liquid from leaking out of the atomizer 10 from the air intake passage 440, prevent the leakage liquid from corroding the power supply or causing explosion of the power supply, and also effectively prevent leakage liquid from leaking out of the atomizer 10 from the suction nozzle port 121a of the air intake passage 11. If the air inlet passage 440, the air guide chamber 410, the flow guide passage 12, the flow guide passage 212 and the air suction passage 11 are regarded as air flow passages through which the outside air flows, the atomizer 10 can prevent leakage liquid from both upper and lower ends of the air flow passages to the outside of the atomizer 10. And in addition, the condensate and the suspended small liquid drops can be prevented from being sucked by a user during suction, and the suction experience of the user can be improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An atomizer is characterized by comprising a top cover assembly and an atomizing core at least partially accommodated in the top cover assembly, wherein a flow guide channel and an air guide hole are formed in the top cover assembly, and a structure at least partially protruding or sinking is formed between the flow guide channel and the air guide hole; the atomization core discharges aerosol after liquid atomization into the air guide hole through the flow guide channel.

2. The nebulizer of claim 1, wherein the cap assembly has an inner wall surface bounding the flow guide channel, the convex or concave structure being disposed on the inner wall surface.

3. The nebulizer of claim 2, wherein the cap assembly further comprises an outer wall surface connected to the inner wall surface, the flow directing channel extending through the outer wall surface, the inner wall surface comprising an inner side wall surface parallel to a central axis of the nebulizer, at least a portion of the inner side wall surface being recessed to form a first recess through the outer wall surface.

4. The nebulizer of claim 3, wherein the cap assembly further comprises a second groove in communication with the first groove, wherein the second groove has a concave direction that forms a set angle with the concave direction of the first groove.

5. The atomizer of claim 4, wherein said cap assembly further has a second inner bottom wall surface bounding said second recessed portion, said second inner bottom wall surface being concavely formed with micro-grooves having a groove width smaller than a groove width of said second groove, said micro-grooves extending in a direction at an angle to a central axis of said atomizer.

6. The atomizer of claim 3, wherein said inner wall surface includes an inner top wall surface disposed at an angle to a central axis of said atomizer and connected to said inner sidewall surface, said inner top wall surface being formed with a third recess extending through said outer wall surface.

7. The atomizer of claim 1, further comprising a housing, wherein the cap assembly and the atomizing core are at least partially received in the housing, the housing defines a suction hole coaxial with the air guide hole, the air guide hole is communicated between the suction hole and the flow guide channel, and an end of the suction hole away from the air guide hole forms a suction nozzle communicated with the outside.

8. The nebulizer of claim 7, wherein the housing comprises an outer shell and a center post, the center post being located within the outer shell and inserted in the air vent, the center post comprising a tip portion located in the air vent, the cap assembly further having a first inner surface bounding the air vent, a gap being present between the tip portion and the first inner surface.

9. The atomizer of claim 8, wherein said center post has a second inner surface bounding said suction orifice, said second inner surface being concavely formed with a sink extending in a direction along a central axis of said suction orifice.

10. An electronic atomisation device comprising a power supply and an atomiser as claimed in any one of claims 1 to 9.