CN218898354U - Atomizing core and aerosol generating device - Google Patents

Abstract

The application relates to an atomization core and an aerosol generating device, wherein the atomization core comprises an atomization shell, and comprises a mounting cavity and an atomization cavity communicated with the mounting cavity; the heating piece is accommodated in the mounting cavity and provided with an atomization surface facing the atomization cavity; the sealing piece is coated outside the heating piece along the circumferential direction and is configured to form an air outlet opening exposing the atomization surface; wherein the atomizing face protrudes from at least part of the edge of the air outlet opening. Above-mentioned atomizing core, sealing member do not fully wrap up in the edge of the atomizing face of heating element, and the aerosol that aerosol generation matrix produced after the atomizing of being heated can not gather on the atomizing face at the condensate that forms after meeting cold, but from the atomizing face outstanding in the edge of giving vent to anger the opening and flow to guarantee that aerosol can smoothly follow the atomizing face and flow, guarantee the play cigarette volume of outflow aerosol generation matrix.

Description

Atomizing core and aerosol generating device

Technical Field

The application relates to the technical field of atomization, in particular to an atomization core and an aerosol generating device.

Background

The aerosol is a colloid dispersion system formed by dispersing and suspending solid or liquid small particles in a gaseous medium, and the aerosol can be absorbed by a human body through a respiratory system, so that a novel alternative absorption mode is provided for users. An aerosol-generating device refers to a device that forms an aerosol from a stored nebulizable medium by means of heating or the like. Nebulizable media, including liquid, gel, paste or solid aerosol-generating matrices, are nebulized to deliver an aerosol for inhalation to the user, replacing conventional product forms and absorption modalities.

However, some aerosol generating devices at present heat aerosol generating substrates through heating elements, but due to structural defects of the aerosol generating devices, condensate generated in the use process of the aerosol generating devices can accumulate on the surfaces of the heating elements, so that the amount of smoke output by the aerosol generating devices is smaller, and the use experience of users is affected.

Disclosure of Invention

Accordingly, it is necessary to provide an atomizing core and an aerosol generating device capable of achieving a technical effect of increasing the amount of smoke, in order to solve the problem of the deviation of the amount of smoke in the aerosol generating device.

According to one aspect of the present application, there is provided an atomizing core comprising:

the atomization shell comprises a mounting cavity and an atomization cavity communicated with the mounting cavity;

the heating piece is accommodated in the mounting cavity and provided with an atomization surface facing the atomization cavity; and

the sealing piece is circumferentially coated outside the heating piece and is configured to form an air outlet opening exposing the atomization surface;

wherein the atomizing surface protrudes out of at least part of the edge of the air outlet opening.

In one embodiment, the atomizing core further comprises an air inlet channel, one end of the air inlet channel is communicated with the mounting cavity, and the other end of the air inlet channel extends away from the mounting cavity along a direction parallel to the atomizing surface.

In one embodiment, the atomizing surface protrudes from two opposite side edges of the air outlet opening in the first direction, the atomizing core includes two air inlet channels, the two air inlet channels are respectively arranged on two opposite sides of the mounting cavity in the first direction, and each air inlet channel extends along the first direction;

wherein the first direction is parallel to the atomizing face.

In one embodiment, the length of the atomizing face in the second direction is greater than the length thereof in the first direction;

wherein the second direction is parallel to the atomizing face and perpendicular to the first direction.

In one embodiment, the air inlet channel has a first surface and a second surface, the first surface and the second surface being spaced apart in a direction from the mounting cavity to the atomizing cavity;

the atomizing surface is located between the first surface and the second surface, the first surface is located at one side of the atomizing surface away from the atomizing cavity, and the second surface is located at one side of the atomizing surface close to the atomizing cavity.

In one embodiment, the first surface is provided with a liquid storage tank.

In one embodiment, the distance between the first surface and the plane of the atomizing surface increases gradually from the side close to the atomizing cavity to the side far away from the atomizing cavity.

In one embodiment, the second surface is provided with an air guide groove, and the air guide groove extends along the airflow flowing direction of the air inlet channel.

In one embodiment, the atomization shell further comprises an air inlet part, the air inlet part is provided with an air inlet hole communicated with one end of the installation cavity of the air inlet channel, and a plane where an outlet end of the air inlet hole is located between the first surface and the second surface.

In one embodiment, the plane of the outlet end of the air inlet hole is located at one side of the atomizing surface away from the atomizing cavity.

According to another aspect of the present application, there is provided an aerosol-generating device comprising the above-described atomizing core, the aerosol-generating device further comprising a power supply assembly electrically connected to the atomizing core for providing electrical energy to the atomizing core.

Above-mentioned atomizing core, sealing member do not fully wrap up in the edge of the atomizing face of heating element, and the aerosol that aerosol generation matrix produced after the atomizing of being heated can not gather on the atomizing face at the condensate that forms after meeting cold, but from the atomizing face outstanding in the edge of giving vent to anger the opening and flow to guarantee that aerosol can smoothly follow the atomizing face and flow, guarantee the play cigarette volume of outflow aerosol generation matrix.

Drawings

FIG. 1 is a schematic illustration of an atomizing assembly according to an embodiment of the present disclosure;

FIG. 2 is an exploded view of the atomizing assembly shown in FIG. 1;

FIG. 3 is an A-A cross-sectional view of the atomizing assembly shown in FIG. 1;

FIG. 4 is a B-B cross-sectional view of the atomizing assembly shown in FIG. 1;

FIG. 5 is a partially exploded schematic illustration of an atomizing core of the atomizing assembly shown in FIG. 1;

FIG. 6 is a schematic view of a heat generating seat of the atomizing core shown in FIG. 5;

FIG. 7 is a schematic diagram illustrating the assembly of the heat generating base, the heat generating member, and the sealing member shown in FIG. 5;

FIG. 8 is a schematic view of the seal of FIG. 7;

reference numerals illustrate:

100. an atomizing assembly; 20. a housing; 21. an exhaust passage; 23. a liquid storage cavity; 40. an atomizing core; 41. an atomizing housing; 412. a heating seat; 411. a liquid inlet part; 4112. a bottom liquid inlet cavity; 4114. a thimble mounting hole; 4116. a bottom liquid guide groove; 4118. a liquid guiding column; 413. an air inlet part; 4132. an air inlet hole; 414. a support; 4141. an atomizing chamber; 4143. a liquid discharge channel; 4145. an air intake passage; 4145a, a first surface; 4145b, second surface; 4145c, reservoir; 4145d, air guide groove; 416. sealing the top cover; 418. a mounting cavity; 43. a heat generating member; 432. an atomizing surface; 45. a seal; 452. a seal body; 4521. a first sealing part; 4523. a second sealing part; 4523a, lateral sump; 4523b, circumferential sump; 454. a lap joint; 60. a positive electrode thimble; 70. and a negative electrode thimble.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on 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 "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1, an aerosol-generating device is provided for heating an aerosol-generating substrate to generate an aerosol for use by a user. The aerosol-generating substrate includes, but is not limited to, materials for medical, health, wellness, and cosmetic purposes, e.g., aerosol-generating substrates are medicinal liquids, oils.

The aerosol generating device provided by the embodiment of the application comprises an atomization component 100 and a power component, wherein the power component is electrically connected with the atomization component 100 to provide electric energy for the atomization component 100, the atomization component 100 can store aerosol generating matrixes, and the aerosol generating matrixes are heated under the action of the electric energy of the power component to generate aerosol for people to inhale.

As shown in fig. 1-4, the atomizing assembly 100 includes a housing 20 and an atomizing core 40. The shell 20 is of a shell-shaped structure with one end open, the atomization core 40 is accommodated in the open end of the shell 20, the other end in the shell 20 is provided with an exhaust channel 21 and a liquid storage cavity 23 surrounding the exhaust channel 21 along the circumferential direction, one end of the exhaust channel 21 is communicated with the atomization core 40, and the other end of the exhaust channel 21 penetrates through the closed end of the shell 20 to be communicated with the external environment. The liquid storage cavity 23 is used for storing aerosol-generating substrate, the aerosol-generating substrate in the liquid storage cavity 23 can flow into the atomizing core 40 to be heated and atomized by the atomizing core 40, and aerosol generated by atomization can flow out of the housing 20 through the air exhaust channel 21 for inhalation by a user. The power supply assembly is coupled to the end of the atomizing assembly 100 provided with the atomizing core 40, and is electrically connected to the atomizing core 40 to supply power to the atomizing core 40.

In the following embodiment, the width direction of the housing 20 is defined as a first direction (i.e., X direction in fig. 3), the length direction of the housing 20 is defined as a second direction (i.e., Y direction in fig. 4), the height direction of the housing 20 (i.e., extending direction of the exhaust passage 21) is defined as a third direction (i.e., Z direction in fig. 3), and the first direction, the second direction, and the third direction are perpendicular to each other.

Referring to fig. 2 to 5, the atomizing core 40 includes an atomizing housing 41, a heat generating member 43, and a sealing member 45. The atomizing housing 41 is provided with a mounting cavity 418 and an atomizing cavity 4141 positioned at one side of the mounting cavity 418, the heating element 43 is accommodated in the mounting cavity 418, and the sealing element 45 is circumferentially coated outside the heating element 43 to limit the heating element 43 in the mounting cavity 418. One end of the atomizing chamber 4141 communicates with the mounting chamber 418, and the other end of the atomizing chamber 4141 remote from the mounting chamber 418 communicates with the exhaust passage 21 of the housing 20. The heat generating element 43 may absorb and heat the aerosol-generating substrate and the aerosol generated by the heated aerosol-generating substrate may flow out of the mounting chamber 418, through the aerosol-generating chamber 4141 and into the outlet passage.

In some embodiments, the atomizing housing 41 includes a heat generating seat 412, a support 414, and a seal cap 416 that are mated with one another.

As shown in fig. 6, specifically, the heat generating base 412 has a solid of revolution structure with a central axis extending along a third direction, and includes a heat generating base bottom wall and a heat generating base side wall surrounding an edge of the heat generating base bottom wall along a circumferential direction, a central area of the heat generating base bottom wall protrudes toward the exhaust channel 21 to form a liquid inlet 411, and a bottom liquid storage cavity 23 for storing aerosol generating substrate is formed on a surface of the liquid inlet 411 facing the exhaust channel 21.

Further, the liquid inlet portion 411 is further provided with two thimble mounting holes 4114, and the two thimble mounting holes 4114 are spaced apart in the second direction. Referring to fig. 4, the atomizing assembly 100 further includes a positive pin 60 and a negative pin 70, wherein one ends of the positive pin 60 and the negative pin 70 are connected to a power supply assembly, and the other ends pass through the pin mounting hole 4114 along the third direction to be electrically connected to the heat generating member 43 so as to supply power to the heat generating member 43.

With continued reference to fig. 3, 4 and 5, the supporting member 414 is a solid of revolution structure with a central axis extending along a third direction, the supporting member 414 is coupled to an end of the heating seat 412 having the liquid inlet 411 along the third direction, an axial end of the supporting member 414 and the heating seat 412 together define a mounting cavity 418 for accommodating the heating member 43, an atomizing cavity 4141 communicating with the mounting cavity 418 is formed at the other axial end of the supporting member 414, and the exhaust passage 21 of the housing 20 is coupled to a side of the supporting member 414 away from the heating seat 412 to communicate with the atomizing cavity 4141.

Further, the support member 414 is provided with two liquid-discharging passages 4143, the two liquid-discharging passages 4143 are disposed at opposite sides of the mounting cavity 418 and the atomizing cavity 4141 at intervals in the second direction, one end of each liquid-discharging passage 4143 is communicated with the liquid storage cavity 23 of the housing 20, and the other end extends toward the bottom liquid storage cavity 23 of the heat generating seat 412 along the third direction. As such, the aerosol-generating substrate stored in the reservoir 23 may flow into the bottom reservoir 23 through the lower liquid channel 4143.

As shown in fig. 4 and 6, as a preferred embodiment, a bottom liquid guiding groove 4116 is formed in the bottom wall of the bottom liquid storage chamber 23 formed in the liquid inlet portion 411 of the heat generating base 412, and the bottom liquid guiding groove 4116 is correspondingly connected to the liquid outlet channel 4143, so as to guide the aerosol generating substrate flowing out of the liquid outlet channel 4143 to other areas of the bottom liquid storage chamber 23. In particular, in one embodiment, one end of the bottom liquid guiding groove 4116 is correspondingly connected to one of the liquid discharging channels 4143, and the other end of the bottom liquid guiding groove 4116 extends along the second direction until being correspondingly connected to the other liquid discharging channel 4143. In this way, the aerosol-generating substrate in the reservoir 23 flows into the opposite ends of the bottom reservoir 23 in the second direction through the two lower liquid passages 4143 spaced apart in the second direction and then flows along the bottom liquid guide groove 4116 to the central position of the bottom reservoir 23 for absorption by the heat generating member 43.

In some embodiments, the bottom wall of the bottom liquid storage cavity 23 is further provided with a plurality of liquid guiding columns 4118 surrounding the bottom liquid guiding groove 4116, and liquid guiding gaps are formed between adjacent liquid guiding columns 4118. As such, the aerosol-generating substrate in the bottom reservoir 23 climbs up the liquid guide column 4118 into the heat-generating component 43 of the mounting chamber 418 using capillary forces between adjacent liquid guide columns 4118.

As shown in fig. 2, 3 and 4, the seal top cover 416 is covered on one end of the supporting member 414 away from the heating seat 412 along the third direction, so as to close the gap between the heating seat 412 and the liquid storage chamber 23, and the seal top cover 416 is provided with a communication hole to communicate the liquid storage chamber 23 with the liquid discharging channel 4143, the atomizing chamber 4141 and the air discharging channel 21. As a preferred embodiment, the seal cap 416 is formed of a material such as silicone that is elastically deformable, thereby providing a good seal.

The heat generating element 43 has a cubic structure, the width direction of the heat generating element 43 extends in a first direction, the length direction of the heat generating element 43 extends in a second direction, and the height direction of the heat generating element 43 extends in a third direction. The heating element 43 is limited in the mounting cavity 418 defined by the heating seat 412 and the supporting element 414 through the sealing element 45, an atomization surface 432 capable of generating heat is formed on the upper surface of the heating element 43 facing the atomization cavity 4141, the length of the atomization surface 432 in the second direction is larger than that of the atomization surface 432 in the first direction, and the lower surface of the heating element 43 facing the heating seat 412 is communicated with the bottom liquid storage cavity 23 of the liquid inlet part 411. In this way, the heat generating element 43 can absorb the aerosol-generating substrate from the bottom liquid storage chamber 23 of the liquid inlet portion 411, and the aerosol-generating substrate generated by heating the aerosol-generating substrate flows out through the atomizing surface 432.

As shown in fig. 2, 3 and 5, one end of the sealing member 45 is coupled to the heat generating seat 412, and the other end of the sealing member 45 is circumferentially wrapped around the heat generating member 43, and is configured to form an air outlet opening exposing the atomizing surface 432 and a liquid inlet opening exposing a side surface of the heat generating member 43 facing the bottom liquid storage chamber 23. In this way, aerosol-generating substrate in the bottom reservoir 23 may enter the heat-generating element 43 through the liquid inlet opening, and aerosol generated by thermal atomization of the aerosol-generating substrate in the heat-generating element 43 may flow out of the atomizing face 432 through the gas outlet opening.

Further, in order to increase the liquid guiding speed, a side liquid guiding channel communicating with the bottom liquid storage cavity 23 is formed between the sealing member 45 and the heating member 43. In this way, a part of aerosol generating substrate in the bottom liquid storage cavity 23 enters the heating element 43 from the lower surface of the heating element 43 through the liquid inlet opening of the sealing element 45, and the other part of aerosol generating substrate enters the heating element 43 from the side direction through the side liquid guide channel, so that the speed of the aerosol generating substrate entering the heating element 43 is ensured, the rapid temperature rise of the heating element 43 due to lack of the aerosol generating substrate is effectively prevented, the heating element 43 is further prevented from generating dry burning to generate harmful gas and scorched smell, and the use experience of the aerosol generating device is effectively improved.

As a preferred embodiment, a plurality of side liquid guiding channels are arranged between the sealing member 45 and the heating member 43, and a side liquid guiding channel communicated with the bottom liquid storage cavity 23 is formed between the sealing member 45 and the heating member 43, and each side liquid guiding channel extends along the third direction.

In particular, in some embodiments, as shown in fig. 8, the inner side wall of the sealing member 45 is provided with a lateral liquid guiding groove 4523a, and the groove wall of the lateral liquid guiding groove 4523a and the side wall of the heat generating member 43 together define a lateral liquid guiding channel, so that the shape of the heat generating member 43 does not need to be changed. In other embodiments, a groove may be formed on the side wall of the heat generating element 43 to form a lateral liquid guiding channel.

Further, a circumferential liquid guiding groove 4523b surrounding the heating element 43 along the circumferential direction is formed in one end, close to the bottom liquid storage cavity 23, of the sealing element 45, and the circumferential liquid guiding groove 4523b is communicated with the bottom liquid storage cavity 23 and the side liquid guiding channel. In this way, aerosol-generating substrate in the bottom reservoir 23 may enter the side channels through the circumferential liquid guide slots 4523b, thereby ensuring a lateral liquid guide rate.

In some embodiments, the atomizing face 432 protrudes beyond at least a portion of the edge of the outlet opening of the seal 45. In this way, the sealing member 45 does not completely cover the edge of the atomizing surface 432 of the heating member 43, and condensate formed by the aerosol generated by heating and atomizing the aerosol generating substrate after cooling does not gather on the atomizing surface 432, but flows out from the edge of the atomizing surface 432 protruding from the air outlet opening, so that the aerosol can be ensured to smoothly flow out from the atomizing surface 432, and the smoke output of the aerosol generating substrate is ensured.

Specifically, the seal 45 includes a seal body 452 and a lap portion 454, and the seal body 452 includes a first seal portion 4521 and a second seal portion 4523. The first sealing portion 4521 is covered on the liquid inlet portion 411 of the heat generating seat 412, the second sealing portion 4523 is connected to one end of the first sealing portion 4521 and circumferentially covers the heat generating element 43, and an edge of one end of the second sealing portion 4523, which is far away from the first sealing portion 4521, is lower than the atomizing surface 432 of the heat generating element 43, so that the atomizing surface 432 protrudes beyond the edge of the second sealing portion 4523 in the third direction. One end of the overlap portion 454 is connected to one end of the second sealing portion 4523 away from the liquid inlet portion 411, and the other end of the overlap portion 454 overlaps the edge of the atomizing surface 432.

In this way, the end of the sealing member main body 452 far away from the lap joint 454 forms a liquid inlet opening, the end of the sealing member main body 452 connected with the lap joint 454 and the lap joint 454 together form an air outlet opening exposing the atomizing surface 432, and condensate on the atomizing surface 432 of the heating member 43 can flow out from between the two lap joint 454. As a preferred embodiment, the atomizing face 432 projects from the edge of the seal body 452 a distance H1 of 0.1mm to 1.5 (as shown in FIG. 3).

It will be appreciated that the lateral sump 4523a opens into the second seal portion 4523 of the seal body 452. While in order to prevent aerosol-generating substrate from exiting the mounting chamber 418 through the side fluid guide channels, the side fluid guide channels 4523a extend from the end of the seal body 452 remote from the nebulization chamber 4141 to a portion of the edge of the seal body 452 connecting the overlap 454. In this manner, the overlap 454 may act as a barrier to aerosol-generating substrate flowing along the third direction to the atomizing face 432, preventing aerosol-generating substrate from exiting the mounting chamber 418 through the side liquid guide channels.

As shown in fig. 3, 6 and 7, in some embodiments, in order to make the air flow enter the atomizing core 40 and carry the aerosol into the atomizing chamber 4141, a partial area of the bottom wall of the heating seat 412 protrudes toward the direction of the liquid storage chamber 23 to form an air inlet 413, and an air inlet 4132 communicating with the external environment is provided at one end of the air inlet 413 toward the liquid storage chamber 23. The support member 414 is provided with an air inlet passage 4145, one end of the air inlet passage 4145 communicates with the mounting chamber 418, and the other end of the air inlet passage 4145 extends in the first direction away from the mounting chamber 418 until communicating with the air inlet hole 4132 of the air inlet portion 413. As such, air in the external environment may flow into the air inlet passage 4145 through the air inlet holes 4132, then flow along the air inlet passage 4145 to the mounting chamber 418, and then flow into the exhaust passage 21 through the atomizing chamber 4141 carrying the aerosol generated by the atomizing face 432.

In particular, in some embodiments, the seal 45 includes two overlapping portions 454, the two overlapping portions 454 being connected to opposite sides of the seal body 452 in the second direction, respectively, such that the atomizing face 432 protrudes beyond opposite side edges of the outlet opening in the first direction. The heat generating seat 412 forms two air inlet portions 413 spaced apart in the first direction, the support member 414 is provided with two air inlet channels 4145, the two air inlet channels 4145 are respectively arranged on two opposite sides of the mounting cavity 418 in the first direction, and each air inlet channel 4145 is correspondingly communicated with an air inlet hole 4132 of one air inlet portion 413. In this way, the airflows flowing out from the two air inlet portions 413 converge into the installation cavity 418 from the first direction through the two air inlet passages 4145, respectively. Since the length of the atomizing face 432 in the second direction is greater than its length in the first direction, the gas flow can be mixed with more aerosol.

Further, the air inlet channel 4145 has a first surface 4145a and a second surface 4145b disposed at intervals in a third direction (i.e., the direction in which the mounting cavity 418 is directed toward the atomizing cavity 4141), the atomizing surface 432 is located between the first surface 4145a and the second surface 4145b, and the first surface 4145a is located on a side of the atomizing surface 432 away from the atomizing cavity 4141, and the second surface 4145b is located on a side of the atomizing surface 432 adjacent to the atomizing cavity 4141. As a preferred embodiment, the distance H2 between the second surface 4145b and the atomizing surface 432 of the heat generating body is 0.5mm to 0.5mm (as shown in fig. 3), so that the air flow in the air inlet channel 4145 does not directly blow on the atomizing surface 432 to reduce the temperature of the atomizing surface 432, thereby ensuring that the heat generating member 43 has a sufficient atomization amount. In addition, the air inlet channel 4145 is arranged above the atomizing surface 432 to form an air flow which drives the aerosol to directly rise along the third direction, and compared with a spiral flow mode of the air flow, the air flow mode forms a 'gas-bag smoke' state, so that the problem of wall hanging of the mixed smoke is solved, and the effect of gathering the mixed smoke is achieved.

Referring to fig. 2 and 5, in some embodiments, the distance between the first surface 4145a and the plane of the atomizing surface 432 increases gradually from the side near the atomizing chamber 4141 to the side far from the atomizing chamber 4141, the first surface 4145a is provided with a plurality of liquid storage grooves 4145c, the plurality of liquid storage grooves 4145c are arranged at intervals along the second direction, and each liquid storage groove 4145c extends along the extending direction of the first surface 4145 a. As such, the condensate flowing down from the atomizing face 432 flows in the inclined direction of the first surface 4145a and is stored in the liquid reservoir 4145 c. It will be appreciated that the number and shape of the reservoirs 4145c are not limited and can be set as desired to meet different reservoir requirements.

In some embodiments, the first surface 4145a is provided with a plurality of air guide grooves 4145d, and the plurality of air guide grooves are arranged at intervals along the second direction, and each air guide groove 4145d extends lengthwise along the airflow direction of the air inlet channel 4145. In this way, the air guide groove 4145d is configured to further limit the flow direction of the air flow, so as to prevent the air flow from directly blowing onto the atomizing surface 432 and reducing the temperature of the atomizing surface 432.

As shown in fig. 2, 5 and 6, in some embodiments, a plane on which the air outlet end of the air inlet hole 4132 formed on the air inlet portion 413 is located between the first surface 4145a and the second surface 4145b, so as to prevent condensate on the first surface 4145a from leaking out of the air inlet hole 4132. As a preferred embodiment, each air inlet 413 is provided with a plurality of air inlet holes 4132 with smaller diameter, and due to the smaller diameter of the air inlet holes 4132, condensed liquid drops cannot leak out through the air inlet holes 4132 due to surface tension.

In some embodiments, the plane of the air outlet end of the air inlet hole 4132 is located at a side of the atomizing face 432 away from the atomizing chamber 4141, i.e. the plane of the air outlet end of the air inlet hole 4132 is lower than the atomizing face 432. As a preferred embodiment, the plane of the air inlet 4132 is spaced from the atomizing surface 432 by 0.3mm-1.0mm, so that the air flow moves upward along the surface of the heat generating member 43, and the air flow is smoother.

In the above-described atomizing core 40 and aerosol generating device, on the one hand, the condensate formed on the atomizing surface 432 of the heat generating member 43 can flow from the edge of the atomizing surface 432 into the air inlet passage 4145, so that the problem of small amount of smoke in the aerosol generating device can be solved. On the other hand, the aerosol generating substrate is provided for the heating element 43 by adopting a mode of combining the bottom liquid guide and the lateral liquid guide, so that phenomena of dry heating and the like of the heating element 43 due to rapid temperature rise in the heating process can be avoided, and the user experience is effectively improved.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims (11)

1. An atomizing core, comprising:

the atomization shell comprises a mounting cavity and an atomization cavity communicated with the mounting cavity;

the heating piece is accommodated in the mounting cavity and provided with an atomization surface facing the atomization cavity; and

the sealing piece is circumferentially coated outside the heating piece and is configured to form an air outlet opening exposing the atomization surface;

wherein the atomizing surface protrudes out of at least part of the edge of the air outlet opening.

2. The atomizing core of claim 1, further comprising an air inlet channel, one end of the air inlet channel communicating with the mounting cavity, the other end of the air inlet channel extending away from the mounting cavity in a direction parallel to the atomizing face.

3. The atomizing core of claim 2, wherein the atomizing face protrudes from opposite side edges of the air outlet opening in a first direction, the atomizing core including two air inlet passages, the two air inlet passages being provided on opposite sides of the mounting cavity in the first direction, respectively, each of the air inlet passages extending in the first direction;

wherein the first direction is parallel to the atomizing face.

4. A nebulizing cartridge according to claim 3, characterized in that the nebulizing surface has a length in the second direction that is greater than its length in the first direction;

wherein the second direction is parallel to the atomizing face and perpendicular to the first direction.

5. The atomizing core of claim 2, wherein the air inlet channel has a first surface and a second surface, the first surface and the second surface being spaced apart in a direction from the mounting cavity toward the atomizing cavity;

the atomizing surface is located between the first surface and the second surface, the first surface is located at one side of the atomizing surface away from the atomizing cavity, and the second surface is located at one side of the atomizing surface close to the atomizing cavity.

6. The atomizing core of claim 5, wherein the first surface is open to a reservoir.

7. The atomizing core of claim 5, wherein the first surface is progressively more distant from the atomizing chamber than the plane of the atomizing surface from a side proximate to the atomizing chamber.

8. The atomizing core of claim 5, wherein the second surface is provided with an air guide groove extending in an air flow direction of the air inlet passage.

9. The atomizing core of claim 5, wherein the atomizing housing further comprises an air inlet having an air inlet opening communicating with one end of the mounting cavity of the air inlet passage, and wherein a plane of the air inlet at an outlet end thereof is located between the first surface and the second surface.

10. The atomizing core of claim 9, wherein the plane of the outlet end of the inlet orifice is located on a side of the atomizing face remote from the atomizing chamber.

11. An aerosol-generating device comprising an atomizing core according to any of claims 1 to 10, the aerosol-generating device further comprising a power supply assembly electrically connected to the atomizing core to provide electrical energy thereto.

Images