CN117397879A

CN117397879A - Atomizer and electronic atomization device

Info

Publication number: CN117397879A
Application number: CN202210806922.6A
Authority: CN
Inventors: 龚博学; 赵月阳; 樊文远; 李光辉; 吕铭
Original assignee: Shenzhen Smoore Technology Ltd
Current assignee: Shenzhen Smoore Technology Ltd
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2024-01-16

Abstract

The application discloses an atomizer and an electronic atomization device, wherein the atomizer comprises a shell, an atomization seat and a heating body; the atomizing seat is arranged in the shell, and the atomizing seat is matched with the shell to form a liquid storage cavity; the atomization seat is provided with an installation cavity and a liquid discharging hole communicated with the installation cavity; the heating body is arranged in the mounting cavity and is in fluid communication with the liquid storage cavity through the liquid outlet; the hole wall of the lower liquid hole is provided with at least one micro groove, the micro groove extends from the port of the lower liquid hole, which is close to the liquid storage cavity, to the inside of the lower liquid hole, and the micro groove has capillary force, so that aerosol generating substrates in the liquid storage cavity can enter the micro groove under the capillary force and flow out of the micro groove under the action of gravity; and/or the cavity wall of the heating element liquid suction cavity opposite to the heating element is provided with a plurality of fins which are arranged at intervals, capillary grooves are formed between the adjacent fins, and the capillary grooves have capillary force to guide aerosol generating matrixes from the liquid discharging holes to the heating element liquid suction cavity, so that air bubbles can be discharged, sufficient liquid supply is realized, and the heating element is prevented from being burnt dry.

Description

Atomizer and electronic atomization device

Technical Field

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

Background

The main function of the electronic atomizing device is realized by an atomizer, and the atomizer atomizes an internally stored aerosol generating substrate to generate aerosol which is sucked by a user. Based on the required functions, a nebulizer usually has therein a liquid storage chamber for storing an aerosol-generating substrate, a heating element for atomizing the aerosol-generating substrate, and an airflow passage through which external gas and aerosol flow, and a user sucks the aerosol through a port of the airflow passage.

In the existing atomizer, aerosol generating substrates in a liquid storage cavity are in fluid communication with a heating body through a liquid outlet. In the atomization process, bubbles stay in the liquid outlet holes, so that the liquid supply amount of the heating element per unit time is reduced, and even dry heating is caused.

Disclosure of Invention

The application provides an atomizer and electron atomizing device solves among the prior art bubble and detains in the downthehole problem to the influence of confession liquid.

In order to solve the technical problem, the first technical scheme provided by the application is as follows: an atomizer is provided, which comprises a shell, an atomizing seat and a heating body; the atomizing seat is arranged in the shell, and is matched with the shell to form a liquid storage cavity, and the liquid storage cavity is used for storing aerosol generating matrixes; the atomization seat is provided with an installation cavity and a liquid discharging hole communicated with the installation cavity; the heating body is arranged in the mounting cavity; the heating body is in fluid communication with the liquid storage cavity through the liquid outlet hole; the installation cavity and the cavity wall opposite to the surface of the heating element, which is close to the liquid storage cavity, are arranged at intervals to form a heating element liquid suction cavity;

the hole wall of the liquid outlet hole is provided with at least one micro groove, the micro groove extends from a port of the liquid outlet hole, which is close to the liquid storage cavity, to the inside of the liquid outlet hole, and the micro groove has capillary force, so that the aerosol generating substrate in the liquid storage cavity can enter the micro groove under the capillary force and flow out of the micro groove under the action of gravity;

and/or the cavity wall of the heating body liquid absorbing cavity opposite to the heating body is provided with a plurality of fins which are arranged at intervals, capillary grooves are formed between the adjacent fins, and the capillary grooves have capillary force so as to guide the aerosol generating substrate from the liquid outlet to the heating body liquid absorbing cavity.

In an embodiment, the wall of the liquid outlet hole is provided with at least one micro groove, the depth of the micro groove is 0.2mm-1mm, and/or the width of the micro groove is 0.2mm-1mm.

In an embodiment, the hole wall of the liquid discharging hole is provided with at least one micro groove, and a cambered surface transition or an inclined surface transition is formed between the bottom surface of one end of the micro groove, which is far away from the liquid storage cavity, and the inner surface of the liquid discharging hole.

In an embodiment, the atomization seat is provided with two liquid discharging holes and a mist outlet hole, the two liquid discharging holes are respectively positioned at two sides of the mist outlet hole, and the mist outlet hole is communicated with the mounting cavity; the part of the hole wall of the liquid discharging hole far away from the fog outlet hole is provided with the micro groove.

In an embodiment, the portion of the wall of the liquid outlet hole far from the mist outlet hole comprises a first wall surface, a second wall surface and a third wall surface, wherein the first wall surface is positioned at one side of the third wall surface close to the liquid storage cavity, the second wall surface is connected with the first wall surface and the third wall surface, and the second wall surface is inclined relative to one side of the first wall surface facing the mist outlet hole;

the micro grooves extend from the first wall surface to the second wall surface.

In an embodiment, the atomization seat is provided with two liquid discharging holes and a mist outlet hole, the two liquid discharging holes are respectively positioned at two sides of the mist outlet hole, and the mist outlet hole is communicated with the mounting cavity; the part of the hole wall of one end of the liquid outlet hole far away from the liquid storage cavity, which is close to the mist outlet hole, is provided with an opening, and the heating body is in fluid communication with the liquid storage cavity through the opening and the liquid outlet hole;

the cavity wall of the heating element liquid suction cavity opposite to the heating element is provided with a plurality of fins which are arranged at intervals; two ends of the fin are respectively connected with one side, close to the liquid storage cavity, of the opening on the two liquid discharging holes; the distance between the middle part of one side of the fin, which is close to the heating element, and the heating element is smaller than the distance between the end part of one side of the fin, which is close to the heating element, and the heating element.

In one embodiment, the distance between the side of the fin close to the heating element and the heating element is 0.3mm-2mm.

In one embodiment, a plurality of the fins are disposed in parallel along an axial direction of the atomizer.

In one embodiment, the distance between two adjacent fins is 0.2mm-1mm; and/or the thickness of the fin is 0.5 times to 2 times of the distance between two adjacent fins.

In one embodiment, a side of the heating element, which is close to the fin, is a plane; the distance between the side of the fin near the heating element and the heating element gradually increases along the direction from the middle part of the fin to the end part of the fin.

In an embodiment, the fin is close to one side of the heating body and comprises a first section and a second section which are connected with each other, an included angle is formed between the first section and the second section, and the joint of the first section and the second section is an arc.

In an embodiment, the diameter of the circular arc is 1mm-2mm and/or the angle formed between the first section and the second section is 30 ° -120 °.

one end of the fog outlet far away from the liquid storage cavity is provided with a baffle, and one side of the baffle close to the heating element is of a V-shaped structure; the fins are arranged on the surface, close to the heating body, of the baffle plate, and the fins are of a V-shaped structure; or, the surface of the baffle close to the heating body is provided with a plurality of capillary grooves, the whole capillary grooves are V-shaped, and the side walls of the capillary grooves form the fins.

In order to solve the technical problem, the second technical scheme provided by the application is as follows: an electronic atomization device is provided, which comprises an atomizer and a host; the nebulizer is for storing and nebulizing an aerosol-generating substrate; the atomizer is any one of the above atomizers; the host is used for providing energy for the work of the atomizer.

The beneficial effects of this application: different from the prior art, the application discloses an atomizer and an electronic atomization device, wherein the atomizer comprises a shell, an atomization seat and a heating body; the atomizing seat is arranged in the shell, and the atomizing seat is matched with the shell to form a liquid storage cavity, and the liquid storage cavity is used for storing aerosol generating matrixes; the atomization seat is provided with an installation cavity and a liquid discharging hole communicated with the installation cavity; the heating body is arranged in the mounting cavity and is in fluid communication with the liquid storage cavity through the liquid outlet; the hole wall of the liquid outlet hole is provided with at least one micro groove, the micro groove extends from the port of the liquid outlet hole, which is close to the liquid storage cavity, to the inside of the liquid outlet hole, and the micro groove has capillary force, so that aerosol generating substrates in the liquid storage cavity can enter the micro groove under the capillary force and flow out of the micro groove under the action of gravity; and/or the cavity wall of the heating element liquid suction cavity opposite to the heating element is provided with a plurality of fins which are arranged at intervals, capillary grooves are formed between the adjacent fins, and the capillary grooves have capillary force to guide aerosol generating matrixes from the liquid discharging holes to the heating element liquid suction cavity, so that air bubbles can be discharged, sufficient liquid supply is realized, and the heating element is prevented from being burnt dry.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of an electronic atomizing device provided in an embodiment of the present application;

FIG. 2 is a schematic diagram of the atomizer of the electronic atomizing device provided in FIG. 1;

FIG. 3 is a schematic view of the top seat of the atomizer provided in FIG. 2;

FIG. 4 is a schematic cross-sectional view of the top seat provided in FIG. 3;

fig. 5 is a schematic view of another angle of the top base provided in fig. 3.

Detailed Description

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, interfaces, techniques, etc., in order to provide a thorough understanding of the present application.

The terms "first," "second," "third," and the like in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", and "a third" may include at least one such feature, either explicitly or implicitly. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. All directional indications (such as up, down, left, right, front, back … …) in the embodiments of the present application are merely used to explain the relative positional relationship, movement conditions, etc. between the components under a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is correspondingly changed. The terms "comprising" and "having" and any variations thereof in the embodiments of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may alternatively include other steps or elements not listed or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

The present application is described in detail below with reference to the accompanying drawings and examples.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic atomization device according to an embodiment of the present application.

In the present embodiment, an electronic atomizing device 100 is provided. The electronic atomizing device 100 may be used for atomizing an aerosol-generating substrate. The electronic atomizing device 100 includes an atomizer 1 and a main body 2 electrically connected to each other.

Wherein the atomizer 1 is for storing an aerosol-generating substrate and atomizing the aerosol-generating substrate to form an aerosol for inhalation by a user. The atomizer 1 is particularly useful in different fields, such as medical, cosmetic, leisure, and the like. In one embodiment, the atomizer 1 may be used in an electronic aerosolization device for atomizing an aerosol-generating substrate and generating an aerosol for inhalation by a smoker, the following embodiments taking this leisure inhalation as an example.

The specific structure and function of the atomizer 1 can be referred to as the specific structure and function of the atomizer 1 according to the following embodiments, and the same or similar technical effects can be achieved, which are not described herein.

The host 2 includes a battery (not shown) and a controller (not shown). The battery is used to provide electrical energy for the operation of the atomizer 1 to enable the atomizer 1 to atomize an aerosol-generating substrate to form an aerosol; the controller is used for controlling the atomizer 1 to work. The host 2 also includes other components such as a battery holder, an airflow sensor, and the like.

The atomizer 1 and the host machine 2 can be integrally arranged, can be detachably connected, and can be designed according to specific needs.

Referring to fig. 2, fig. 2 is a schematic structural diagram of an atomizer of the electronic atomization device provided in fig. 1.

The atomizer 1 includes a housing 11, an atomizing base 12, and a heat generating body 13. One end of the shell 11 is an open end, the atomization seat 12 is arranged in the shell 11 and seals the open end, the atomization seat 12 is matched with the shell 11 to form a liquid storage cavity 10, and the liquid storage cavity 10 is used for storing aerosol-generating substrates. The atomizing base 12 has a mounting chamber (not shown) and a liquid discharge hole 1211 communicating with the mounting chamber; specifically, the atomizing base 12 includes a top base 121 and a base 122, the top base 121 and the base 122 cooperate to form an installation cavity, and the lower liquid hole 1211 is provided in the top base 121. The heat-generating body 13 is located in the installation cavity, and the heat-generating body 13 is located in the casing 11 together with the atomizing base 12, and the heat-generating body 13 is in fluid communication with the liquid storage cavity 10 through the liquid outlet 1211, and the heat-generating body 13 is used for atomizing the aerosol-generating substrate to generate aerosol.

The heating element 13 and the bottom wall of the installation cavity are arranged at intervals to form an atomization cavity 120, namely the surface of the heating element 13 away from the liquid storage cavity 10 is matched with the cavity wall of the installation cavity to form the atomization cavity 120; the aerosol generated by the atomization of the heating element 13 is released into the atomization cavity 120. The housing 11 has a mist outlet passage 111, and the top base 121 is provided with a mist outlet hole 1210, and the mist outlet hole 1210 communicates the mist chamber 120 with the mist outlet passage 111. The base 122 is provided with an air inlet passage 1221, and the air inlet passage 1221 communicates external air with the atomization chamber 120. Ambient air enters the atomizing chamber 120 through the air inlet passage 1221, and aerosol carried in the atomizing chamber 120 flows to the mist outlet passage 111 through the mist outlet holes 1210, and a user sucks the aerosol through the ports of the mist outlet passage 111.

Wherein, two liquid discharging holes 1211 are provided on the top base 121, and the two liquid discharging holes 1211 are respectively located at two sides of the mist outlet 1210. The lower liquid hole 1211 is a blind hole with a bottom wall at the bottom end, and the side wall of the bottom end of the lower liquid hole 1211 is provided with an opening 1211a, i.e., the portion of the hole wall of the end of the lower liquid hole 1211, which is far from the liquid storage cavity 10, close to the mist outlet hole 1210 is provided with an opening 1211a. The heating element 13 and the top seat 121 are matched to form a heating element liquid absorbing cavity 130; that is, the heat-generating body liquid sucking chamber 130 is formed by arranging the chamber wall of the installation chamber at a distance from the surface of the heat-generating body 13 close to the liquid storage chamber 10. The heat-generating body liquid suction chamber 130 communicates with the two lower liquid holes 1211 through the two openings 1211a, respectively, and the heat-generating body 13 is in fluid communication with the liquid storage chamber 10 through the heat-generating body liquid suction chamber 130, the openings 1211a, and the lower liquid holes 1211. The opening 1211a may be a notch or a through hole, and the aerosol-generating substrate in the liquid discharge hole 1211 may be allowed to flow to the heating element 13; when the opening 1211a is a notch, a side of the opening 1211a away from the liquid storage chamber 10 is flush with the bottom surface of the lower liquid hole 1211, so that the aerosol-generating substrate in the lower liquid hole 1211 can flow all through the opening 1211a to the heating body 13.

In this embodiment, the heating element 13 is in a sheet shape, and the heating element 13 includes a liquid guiding substrate (not shown) and a heating element (not shown), the heating element is disposed on a surface of the liquid guiding substrate, the liquid guiding substrate is used for guiding the aerosol-generating substrate, and the heating element is used for atomizing the aerosol-generating substrate. The material of the liquid guide matrix can be porous ceramic or compact material; when the material of the liquid guide matrix is compact, the liquid guide matrix can be quartz, glass, compact ceramic or silicon. In other embodiments, the heating element 13 may be an existing porous ceramic heating element or a cotton core heating element, and is specifically designed according to the needs.

It will be appreciated that in the present embodiment, the atomizing base 12 is formed by assembling the top base 121 and the bottom base 122 up and down; in other embodiments, the atomizing base 12 may be formed by assembling two structural members from side to side, and is specifically designed according to the requirement. That is, the present application does not limit the structure of the atomizing base 12, and only describes the atomizing base 12 formed by the top base 121 and the bottom base 122 in detail.

Referring to fig. 3-5, fig. 3 is a schematic structural diagram of a top seat of the atomizer provided in fig. 2, fig. 4 is a schematic sectional structural diagram of the top seat provided in fig. 3, and fig. 5 is a schematic structural diagram of the top seat provided in fig. 3 at another angle.

In the present embodiment, at least one micro groove 1211b is provided on the wall of the lower liquid hole 1211, the micro groove 1211b extends from the port of the lower liquid hole 1211 near the liquid storage chamber 10 to the inside of the lower liquid hole 1211, i.e., the micro groove 1211b extends in a direction away from the liquid storage chamber 10 or in a direction toward the heating body 13, the micro groove 1211b has a capillary force, so that the aerosol-generating substrate in the liquid storage chamber 10 can enter the micro groove 1211b under the capillary force and flow out of the micro groove 1211b under the action of gravity; and/or, the cavity wall of the heat-generating body liquid sucking cavity 130 opposite to the heat-generating body 13 is provided with a plurality of fins 1212 arranged at intervals, and a capillary groove 1212c is formed between the adjacent fins 1212, and the capillary groove 1212c has capillary force to guide the aerosol-generating substrate from the liquid discharging hole 1211 to the heat-generating body liquid sucking cavity 130.

By providing at least one micro groove 1211b on the wall of the liquid discharging hole 1211, the internal space is increased, which is advantageous for improving the liquid discharging speed. Even if bubbles remain in the lower liquid hole 1211, the bubbles occupy the space of the lower liquid hole 1211, and the aerosol-generating substrate can realize continuous liquid supply to the heating element 13 through the micro-grooves 1211b, so that the empty liquid of the heating element 13 is avoided; meanwhile, the aerosol generating substrate in the liquid outlet 1211 is in a flowing state through the micro groove 1211b, so that the balance state of bubbles in the liquid outlet 1211 is broken, the bubbles are driven to move from the bottom of the liquid outlet 1211 to a direction close to the liquid storage cavity 10, gas-liquid separation is realized, the bubbles are discharged, the influence of the bubbles on liquid supply is reduced, sufficient liquid supply is ensured, and the heating body is prevented from being burned.

Optionally, the micro grooves 1211b have a depth of 0.2mm-1mm and/or the micro grooves 1211b have a width of 0.2mm-1mm such that the micro grooves 1211b have a capillary force that is capable of allowing aerosol-generating substrate within the reservoir 10 to enter the micro grooves 1211b, and the micro grooves 1211b have a capillary force that does not impede the aerosol-generating substrate from flowing out of the micro grooves 1211b under the force of gravity.

Optionally, a cambered surface transition or an inclined surface transition is formed between the bottom surface of the end of the micro groove 1211b away from the liquid storage cavity 10 and the inner surface of the lower liquid hole 1211, so as to ensure that the aerosol-generating substrate in the micro groove 1211b flows out smoothly. The inclination angle of the inclined surface may be 30-60 degrees. It will be appreciated that if the angle of inclination is too small, the outflow path is too long, and if the angle of inclination is too large, the outflow resistance is too large.

Optionally, the end of the micro-groove 1211b remote from the reservoir 10 is spaced from the bottom wall of the lower liquid bore 1211, i.e. the aerosol-generating substrate within the micro-groove 1211b flows out of the micro-groove 1211b before reaching the bottom end of the lower liquid bore 1211.

Alternatively, the micro groove 1211b is provided at a portion of the wall of the liquid discharge hole 1211 away from the mist outlet hole 1210. It will be appreciated that, in the atomization process, the air bubbles entering from the heating element 13 enter the lower liquid hole 1211 through the opening 1211a, and the opening 1211a is located at a portion of the hole wall of the lower liquid hole 1211 close to the mist outlet 1210, and the micro-grooves 1211b are provided at a portion of the hole wall of the lower liquid hole 1211 far from the mist outlet 1210, so that the aerosol-generating substrate flows from the side of the lower liquid hole 1211 far from the opening 1211a to the bottom of the lower liquid hole 1211, so as to have a squeezing effect on the air bubbles, promote the air bubbles to be discharged from the lower liquid hole 1211 to the liquid storage chamber 10, and further reduce the influence of the air bubbles on the liquid supply.

Specifically, the portion of the wall of the lower liquid hole 1211 away from the mist outlet 1210 includes a first wall 1211c, a second wall 1211d, and a third wall 1211f, the first wall 1211c being located on the side of the third wall 1211f that is closer to the liquid storage chamber 10, the second wall 1211d connecting the first wall 1211c and the third wall 1211f. In the present embodiment, the first wall 1211c and the third wall 1211f are parallel to the axial direction of the atomizer 1, and the second wall 1211d is inclined toward the mist outlet 1210 with respect to the first wall 1211 c. The second wall 1211d may be an inclined plane or an inclined arc surface.

The micro groove 1211b extends from a side of the first wall 1211c close to the liquid storage chamber 10 to a side of the second wall 1211d away from the liquid storage chamber 10, i.e., the micro groove 1211b spans the first wall 1211c and the second wall 1211d in the axial direction of the atomizer 1; since the second wall 1211d is an inclined plane or arc surface, the micro groove 1211b extends to the second wall 1211d, which facilitates the slant transition or arc transition between the bottom surface of the end of the micro groove 1211b away from the liquid storage chamber 10 and the inner surface of the lower liquid hole 1211. That is, the micro groove 1211b includes a first groove section (not shown) provided on the first wall 1211c and a second groove section (not shown) provided on the second wall 1211d; the bottom surface of the first groove section is parallel to the first wall 1211c, and the groove depth of the first groove section is consistent; the bottom surface of the second groove section and the second wall 1211d form an included angle, and the groove depth of the second groove section gradually decreases along the direction away from the liquid storage cavity 10, so as to ensure that the aerosol-generating substrate in the micro groove 1211b flows out smoothly.

Alternatively, the micro grooves 1211b may be formed on a portion of the wall of the lower liquid hole 1211 near the mist outlet hole 1210 or on the other portion. It will be appreciated that, during atomization, air bubbles entering from the heating element 13 enter the lower liquid hole 1211 through the opening 1211a, and the opening 1211a is located at a portion of the wall of the lower liquid hole 1211 close to the mist outlet 1210, and the aerosol-generating substrate flows to the bottom of the lower liquid hole 1211 at a side of the lower liquid hole 1211 close to the opening 1211a, so as to squeeze the air bubbles, promote the air bubbles to be discharged from the lower liquid hole 1211 to the liquid storage chamber 10, and further reduce the influence of the air bubbles on liquid supply.

The cross-sectional shape of the micro groove 1211b may be designed according to need, so that the aerosol-generating substrate in the liquid storage chamber 10 can enter the micro groove 1211b by capillary force and flow out of the micro groove 1211b by gravity force.

In fig. 5, in combination with fig. 4, further, two ends of the fin 1212 are respectively connected to the side walls of the openings 1211a on the two liquid-discharging holes 1211 near one side of the liquid storage chamber 10. The distance D1 between the middle part of the side of the fin 1212, which is close to the heating element 13, and the heating element 13 is smaller than the distance D2 (as shown in fig. 2) between the end part of the side of the fin 1212, which is close to the heating element 13, and the heating element 13, so that the middle part of the side of the fin 1212, which is close to the heating element 13, forms a tip, and large bubbles entering from the heating element 13 in the atomization process can be divided into a plurality of small bubbles, so that the large bubbles are prevented from blocking the opening 1211a and/or the liquid discharging hole 1211, and smooth liquid discharging is ensured. Optionally, the fin 1212 is integrally formed with the top seat 121.

One end of the mist outlet 1210 far away from the liquid storage cavity 10 is provided with a baffle 1213, and one side of the baffle 1213 close to the heating body 13 is of a V-shaped structure; specifically, the surface of the baffle 1213 adjacent to the heat-generating body 13 includes a first sub-surface (not shown) and a second sub-surface (not shown), and an angle is formed between the first sub-surface and the second sub-surface.

In the present embodiment, the fin 1212 is located on the surface of the baffle 1213 near the heat-generating body 13. One side of the heating element 13, which is close to the fin 1212, is a plane; the distance between the side of the fin 1212 near the heat generating body 13 and the heat generating body 13 gradually increases in the direction from the middle portion of the fin 1212 toward the end portion of the fin 1212 so that the middle portion of the side of the fin 1212 near the heat generating body 13 forms a tip. Specifically, the side of the fin 1212 near the heating element 13 includes a first segment 1212a and a second segment 1212b that are connected to each other, an included angle is formed between the first segment 1212a and the second segment 1212b, and a joint between the first segment 1212a and the second segment 1212b is an arc. Optionally, the diameter of the arc at the junction of the first segment 1212a and the second segment 1212b is 1mm-2mm; and/or the first segment 1212a and the second segment 1212b form an angle of 30 ° -120 °. By setting the connection between the first segment 1212a and the second segment 1212b as a circular arc transition, the bottom air bubbles can be smoothly discharged during the liquid discharging process while the large air bubbles are divided.

Optionally, fin 1212 is V-shaped. That is, not only is the distance D1 between the intermediate portion of the side of the fin 1212 that is closer to the heat generating body 13 and the heat generating body 13 smaller than the distance D2 between the end of the side of the fin 1212 that is closer to the heat generating body 13 and the heat generating body 13, but also the distance between the intermediate portion of the side of the fin 1212 that is farther from the heat generating body 13 and the heat generating body 13 is smaller than the distance between the end of the side of the fin 1212 that is farther from the heat generating body 13 and the heat generating body 13.

The fins 1212 in this application are V-shaped, that is, the top wall of the heat-generating body liquid suction chamber 130 is not flat-topped, but is low in the middle and high on both sides. By making the fin 1212 in a V-shaped structure, bubbles on the side of the heating element 13 near the liquid storage chamber 10 during atomization can be discharged to the liquid discharge hole 1211 under the guidance of this shape, i.e., the fin 1212 in a V-shaped structure is advantageous for discharging bubbles on the side of the heating element 13 near the liquid storage chamber 10.

Alternatively, the distance between the side of the fin 1212 near the heat generating body 13 and the heat generating body 13 is 0.3mm to 2mm. It can be understood that the distance between the side of the fin 1212 near the heating element 13 and the heating element 13 is set as above, so that the air bubble on the side of the heating element 13 near the liquid storage cavity 10 is blocked by the fin 1212 and prevented from growing up to cause insufficient liquid supply due to too close distance between the fin 1212 and the heating element 13; the space between the heat-generating body 13 and the heat-generating body 1212 is too large to form large bubbles to prevent the liquid from falling when the liquid is replenished again after the aerosol-generating substrate on the side of the heat-generating body 13 close to the liquid storage chamber 10 is consumed (i.e., the aerosol-generating substrate in the heat-generating body liquid suction chamber 130 is consumed) because the distance between the heat-generating body 1212 and the heat-generating body 13 is too far.

In the present embodiment, a plurality of fins 1212 are provided between two openings 1211a of two liquid discharge holes 1211, the plurality of fins 1212 being arranged in parallel along the axial direction of the atomizer 1; capillary grooves 1212c are formed between adjacent fins 1212 and between the fins 1212 and the side walls of the top base 121 at intervals. The capillary groove 1212c formed between two adjacent fins 1212 is equally wide. Because the fins 1212 have a V-shaped structure, the capillary grooves 1212c formed between adjacent fins 1212 have a V-shaped structure.

It will be appreciated that, in the atomization process, the air bubbles entering from the heating element 13 exist in the space of the heating element 13 on the side close to the liquid storage cavity 10, that is, the heating element liquid suction cavity 130 formed between the heating element 13 and the top seat 121, the aerosol-generating substrate flowing out of the opening 1211a can flow to the heating element liquid suction cavity 130 through the capillary groove 1212c, the space of the air bubbles in the heating element liquid suction cavity 130 is occupied by the aerosol-generating substrate, so that the air bubbles are discharged from the opening 1211a and the liquid outlet 1211 under the extrusion of the aerosol-generating substrate and the action of self buoyancy, the gas-liquid separation is realized, and the liquid supply is ensured.

After the aerosol-generating substrate is added into the liquid storage chamber 10, the atomizing base 12 is arranged in the shell 10 to seal the liquid storage chamber 10. Before the liquid storage cavity 10 is fully filled with the aerosol-generating substrate and the atomizer 1 is used for the first time, the lower liquid hole 1211 and the heating element liquid suction cavity 130 are both filled with gas, when the atomizer 1 is used for the first time, the aerosol-generating substrate flows from the lower liquid hole 1211 to the heating element liquid suction cavity 130, air bubbles which are not discharged exist in the heating element liquid suction cavity 130, the aerosol-generating substrate can flow to the heating element liquid suction cavity 130 through the capillary groove 1212c, the space of the air bubbles in the heating element liquid suction cavity 130 is occupied by the aerosol-generating substrate, and the air bubbles are discharged from the opening 1211a and the lower liquid hole 1211 under the extrusion pressure and the self buoyancy of the aerosol-generating substrate, so that dry burning is avoided.

Alternatively, the interval between two adjacent fins 1212 is 0.2mm to 1mm so that the capillary force of the capillary groove 1212c guides the aerosol-generating substrate at the opening 1211a toward the heat-generating body 13; and/or the spacing between two adjacent fins 1212, having a thickness of 0.5-2 times the thickness of the fins 1212, ensures sufficient flow area, ensures flow of aerosol-generating substrate between the fins 1212 and flow of air bubbles in the space outside the fins 1212. In one embodiment, the thickness of the fins 1212 is 0.8 times to 1.2 times the spacing between adjacent two fins 1212.

In other embodiments, the surface of the baffle 1213 away from the liquid storage chamber 10 is V-shaped, and a plurality of grooves (corresponding to the capillary grooves 1212c between the plurality of fins 1212) are formed in the surface of the baffle 1213 away from the liquid storage chamber 10, and the side walls of the capillary grooves 1212c form the fins 1212 described above. Specifically, the surface of baffle 1213 remote from reservoir 10 has a plurality of V-shaped capillary grooves 1212c, i.e., capillary grooves 1212c have the same depth but are bent into a V-shape, rather than capillary grooves 1212c having a V-shape in cross section. Both ends of the V-shaped capillary groove 1212c are connected to two openings 1211a of the two lower liquid holes 1211, respectively, and a distance between the middle portion of the V-shaped capillary groove 1212c and the heating body 13 is smaller than a distance between both ends of the V-shaped capillary groove 1212c and the heating body 13. One side of the heating element 13 near the baffle 1213 is a plane; the distance between V-shaped capillary groove 1212c and heating element 13 gradually increases in the direction from the middle of V-shaped capillary groove 1212c to both ends of V-shaped capillary groove 1212c. It will be appreciated that the action of the plurality of V-shaped capillary grooves 1212c may achieve the same technical effect as the plurality of fins 1212; forming V-shaped capillary groove 1212c on baffle 1213 may reduce process difficulty relative to providing fins 1212 on baffle 1213.

In the test, the micro grooves 1211b had a width of 0.4mm and a depth of 0.8mm; the bottom surface of the end of the micro groove 1211b far from the liquid storage cavity 10 is in slant transition with the inner surface of the lower liquid hole 1211; the distance between the lowest point of the fin 1212 and the heating element 13 is 1mm, the thickness of the fin 1212 is 0.45mm, the pitch of the fin 1212 is 0.55mm, the depth of a capillary groove 1212c formed by the fin 1212 is 1mm, and the lowest point of the fin 1212 passes through a rounded corner transition with a diameter of 1.4 mm. Experiments were performed using the top seat 121 of the above-described structural dimensions, and the results showed that bubbles can be smoothly discharged during the liquid discharging process, gas-liquid separation was achieved, and liquid supply was ensured.

The foregoing is only the embodiments of the present application, and not the patent scope of the present application is limited by the foregoing description, but all equivalent structures or equivalent processes using the contents of the present application and the accompanying drawings, or directly or indirectly applied to other related technical fields, which are included in the patent protection scope of the present application.

Claims

1. An atomizer, comprising:

a housing;

the atomization seat is arranged in the shell, and is matched with the shell to form a liquid storage cavity, and the liquid storage cavity is used for storing aerosol generating matrixes; the atomization seat is provided with an installation cavity and a liquid discharging hole communicated with the installation cavity;

the heating body is arranged in the mounting cavity; the heating body is in fluid communication with the liquid storage cavity through the liquid outlet hole; the cavity wall of the installation cavity and the surface of the heating element, which is close to the liquid storage cavity, are arranged at intervals to form a heating element liquid suction cavity;

2. The atomizer according to claim 1, wherein the walls of said downcomer holes are provided with at least one of said micro-grooves having a depth of 0.2mm-1mm and/or a width of 0.2mm-1mm.

3. The atomizer of claim 1 wherein the walls of said lower liquid orifice are provided with at least one of said micro-grooves, said micro-grooves having a cambered surface transition or an inclined surface transition between the bottom surface of the end thereof remote from said liquid storage chamber and the inner surface of said lower liquid orifice.

4. The atomizer according to claim 1, wherein the atomizing base is provided with two lower liquid holes and an atomizing hole, the two lower liquid holes are respectively positioned at two sides of the atomizing hole, and the atomizing hole is communicated with the mounting cavity; the part of the hole wall of the liquid discharging hole far away from the fog outlet hole is provided with the micro groove.

5. The atomizer according to claim 4, wherein a portion of the wall of said lower liquid hole away from said mist outlet hole comprises a first wall surface, a second wall surface and a third wall surface, said first wall surface being located on a side of said third wall surface closer to said liquid storage chamber, said second wall surface connecting said first wall surface and said third wall surface, said second wall surface being inclined with respect to a side of said first wall surface facing said mist outlet hole;

6. The atomizer according to claim 1, wherein the atomizing base is provided with two lower liquid holes and an atomizing hole, the two lower liquid holes are respectively positioned at two sides of the atomizing hole, and the atomizing hole is communicated with the mounting cavity; the part of the hole wall of one end of the liquid outlet hole far away from the liquid storage cavity, which is close to the mist outlet hole, is provided with an opening, and the heating body is in fluid communication with the liquid storage cavity through the opening and the liquid outlet hole;

7. The atomizer of claim 6 wherein a distance between a side of said fin adjacent said heat generating body and said heat generating body is 0.3mm to 2mm.

8. The atomizer of claim 6 wherein a plurality of said fins are disposed in parallel along an axial direction of said atomizer.

9. The atomizer of claim 6 wherein the spacing between adjacent two of said fins is 0.2mm to 1mm; and/or the thickness of the fin is 0.5 times to 2 times of the distance between two adjacent fins.

10. The atomizer of claim 6 wherein a side of said heater adjacent said fins is planar; the distance between the side of the fin near the heating element and the heating element gradually increases along the direction from the middle part of the fin to the end part of the fin.

11. The atomizer of claim 6 wherein said fin comprises a first section and a second section connected to each other on a side of said fin adjacent said heat generating body, wherein an included angle is formed between said first section and said second section, and wherein the junction of said first section and said second section is a circular arc.

12. An atomizer according to claim 11, wherein the diameter of the circular arc is 1mm-2mm and/or the angle formed between the first and second segments is 30 ° -120 °.

13. The atomizer according to claim 1, wherein the atomizing base is provided with two lower liquid holes and an atomizing hole, the two lower liquid holes are respectively positioned at two sides of the atomizing hole, and the atomizing hole is communicated with the mounting cavity; the part of the hole wall of one end of the liquid outlet hole far away from the liquid storage cavity, which is close to the mist outlet hole, is provided with an opening, and the heating body is in fluid communication with the liquid storage cavity through the opening and the liquid outlet hole;

14. An electronic atomizing device, comprising:

a nebulizer for storing and nebulizing an aerosol-generating substrate; the atomizer of any one of claims 1-13;

and the host is used for providing energy for the work of the atomizer.