CN218185260U - Atomizer and electronic atomization device - Google Patents

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 base is arranged in the shell and matched with the shell to form a liquid storage cavity; the atomizing base is provided with a mounting cavity and a liquid outlet communicated with the mounting cavity; the heating element is arranged in the mounting cavity and is communicated with the liquid storage cavity through the liquid discharge hole; the 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 close to the liquid storage cavity to the interior of the lower liquid 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 wall of the liquid suction cavity of the heating element opposite to the heating element is provided with a plurality of fins arranged at intervals, capillary grooves are formed between the adjacent fins, and capillary grooves have capillary force to guide aerosol generating substrates to the liquid suction cavity of the heating element from the liquid discharge hole, so that bubbles are discharged, sufficient liquid supply is realized, and dry burning of the heating element is avoided.

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 an electronic atomisation device is achieved by an atomiser which atomises an internally stored aerosol-generating substrate to generate an aerosol which is inhaled by a user. A nebulizer typically has therein a reservoir for storing an aerosol-generating substrate, a heat generating body for nebulizing the aerosol-generating substrate, and an airflow channel for the flow of external air and aerosol, the aerosol being inhaled by a user through a port of the airflow channel, depending on the desired function.

In the existing atomizer, the aerosol-generating substrate in the liquid storage chamber is in fluid communication with the heating element through the liquid discharge hole. In the atomization process, bubbles are retained in the lower liquid hole, so that the liquid supply amount of the heating body in unit time is reduced, and even dry burning can be caused.

SUMMERY OF THE UTILITY MODEL

The application provides an atomizer and electronic atomization device solves the problem that the bubble is detained in downthehole influence to the confession liquid of lower liquid among the prior art.

In order to solve the above technical problem, a first technical solution provided by the present application is: the atomizer comprises a shell, an atomizing seat and a heating body; the atomization seat is arranged in the shell, the atomization seat is matched with the shell to form a liquid storage cavity, and the liquid storage cavity is used for storing aerosol generating substrates; the atomizing base is provided with a mounting cavity and a liquid discharging hole communicated with the mounting cavity; the heating body is arranged in the mounting cavity; the heating element is communicated with the liquid storage cavity through the liquid discharging hole; the mounting cavity and the wall of the cavity opposite to the surface of the heating element close to the liquid storage cavity are arranged at intervals to form a heating element liquid suction cavity;

wherein the 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 close to the liquid storage cavity to the inside of the lower liquid 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 gravity action;

and/or the wall of the liquid suction cavity of the heating element opposite to the heating element is provided with a plurality of fins 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 to the liquid suction cavity of the heating element from the liquid outlet.

In one embodiment, the wall of the lower liquid outlet 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 lower liquid hole is provided with at least one microgroove, and an arc surface transition or an inclined surface transition is formed between the bottom surface of one end of the microgroove, which is far away from the liquid storage cavity, and the inner surface of the lower liquid hole.

In one embodiment, the atomizing base is provided with two liquid discharging holes and two mist outlet holes, the two liquid discharging holes are respectively located 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 lower liquid hole, which is far away from the mist outlet hole, is provided with the microgrooves.

In one embodiment, a part of the hole wall of the lower liquid hole, which is far away 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 on one side of the third wall surface, which is 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 to one side of the mist outlet hole relative to the first wall surface;

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

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

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

In one embodiment, a distance between a side of the fin close to the heat generating body and the heat generating body is 0.3mm to 2mm.

In one embodiment, a plurality of the fins are arranged in parallel along the 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 0.5-2 times of the distance between two adjacent fins.

In one embodiment, a side of the heat generating body close to the fin is a flat surface; the distance between the side of the fin close to 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, one side of the fin close to the heating body 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 a circular arc.

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

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

one end of the mist outlet hole, which is far away from the liquid storage cavity, is provided with a baffle, and one side of the baffle, which is 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 and are of a V-shaped structure; or the baffle is provided with a plurality of capillary grooves on the surface close to the heating body, the capillary grooves are integrally V-shaped, and the fins are formed on the side walls of the capillary grooves.

In order to solve the above technical problem, a second technical solution provided by the present application is: the electronic atomization device comprises an atomizer and a host; the atomizer is for storing and atomizing an aerosol-generating substrate; the atomizer is the atomizer of any one of the above-mentioned items; the host is used for providing energy for the work of the atomizer.

The beneficial effect 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 base is arranged in the shell, the atomizing base is matched with the shell to form a liquid storage cavity, and the liquid storage cavity is used for storing the aerosol generating substrate; the atomizing base is provided with a mounting cavity and a liquid outlet communicated with the mounting cavity; the heating element is arranged in the mounting cavity and is communicated with the liquid storage cavity through the liquid discharge hole; the 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 close to the liquid storage cavity to the interior of the lower liquid 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 wall of the liquid suction cavity of the heating element opposite to the heating element is provided with a plurality of fins arranged at intervals, capillary grooves are formed between the adjacent fins, and the capillary grooves have capillary force to guide aerosol generating substrates to the liquid suction cavity of the heating element from the liquid discharge hole, so that bubbles are discharged, sufficient liquid supply is realized, and dry burning of the heating element is avoided.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

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

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

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

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

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

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

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

The terms "first", "second" and "third" in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any indication of the number of technical features indicated. Thus, features defined as "first", "second", and "third" may explicitly or implicitly include at least one of the described features. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise. In the embodiment of the present application, all the directional indicators (such as up, down, left, right, front, and rear … …) are used only to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly. 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 steps or elements listed, but may alternatively include other steps or elements not listed, or may alternatively include other steps or elements 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 can be included in at least one embodiment of the 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. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The present application will be described in detail with reference to the accompanying drawings and examples.

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

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

Therein, the nebulizer 1 is used to store an aerosol-generating substrate and to nebulize the aerosol-generating substrate to form an aerosol, which can be inhaled by a user. The atomizer 1 can be used in different fields in particular, such as medical treatment, beauty treatment, leisure smoking, etc. In one embodiment, the atomizer 1 may be used in an electronic aerosolization device for aerosolizing an aerosol-generating substrate and producing an aerosol for inhalation by a smoker, as exemplified by casual smoking in the following embodiments.

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

The host 2 includes a battery (not shown) and a controller (not shown). The battery is used to provide electrical energy for operation of the atomiser 1 to enable the atomiser 1 to atomise an aerosol-generating substrate to form an aerosol; the controller is used for controlling the work of the atomizer 1. The main body 2 further includes a battery holder, an airflow sensor, and other elements.

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

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 case 11, an atomizing base 12, and a heating body 13. One end of the shell 11 is an open end, the atomizing base 12 is arranged in the shell 11 and seals the open end, the atomizing base 12 and the shell 11 are matched 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 cavity (not shown) and a lower liquid hole 1211 communicated with the mounting cavity; specifically, the atomizing base 12 includes a top base 121 and a bottom base 122, the top base 121 and the bottom base 122 cooperate to form a mounting cavity, and the liquid outlet 1211 is disposed on the top base 121. The heating element 13 is arranged in the mounting cavity, the heating element 13 and the atomizing base 12 are arranged in the shell 11, the heating element 13 is communicated with the liquid storage cavity 10 through the lower liquid hole 1211 in a fluid mode, and the heating element 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 far away from the liquid storage cavity 10 is matched with the wall of the installation cavity to form the atomization cavity 120; the aerosol generated by the atomization of the heating element 13 is released in the atomization chamber 120. The housing 11 has a mist outlet channel 111, and the top seat 121 is provided with a mist outlet hole 1210, and the mist outlet hole 1210 communicates the atomizing chamber 120 with the mist outlet channel 111. The base 122 is provided with an air inlet passage 1221, and the air inlet passage 1221 communicates the outside air with the atomizing chamber 120. The external air enters the atomizing chamber 120 through the air inlet passage 1221, carries the aerosol in the atomizing chamber 120 to flow to the mist outlet passage 111 through the mist outlet holes 1210, and a user inhales the aerosol through the port of the mist outlet passage 111.

Wherein, two liquid discharge holes 1211 are formed on the top seat 121, and the two liquid discharge holes 1211 are respectively located at two sides of the mist outlet 1210. The lower liquid hole 1211 is a blind hole having a bottom wall at the bottom end, and an opening 1211a is formed on the side wall of the bottom end of the lower liquid hole 1211, that is, an opening 1211a is formed on the part of the hole wall of the end of the lower liquid hole 1211 far away from the liquid storage chamber 10, which is close to the mist outlet 1210. The heating element 13 is matched with the top seat 121 to form a heating element liquid suction cavity 130; that is, the wall of the installation cavity and the surface of the heating element 13 close to the liquid storage cavity 10 are arranged at intervals to form a heating element liquid suction cavity 130. The heating element liquid suction chamber 130 is respectively communicated with the two lower liquid holes 1211 through the two openings 1211a, and the heating element 13 is in fluid communication with the liquid storage chamber 10 through the heating element 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 lower liquid 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 entirely flow to the heating element 13 through the opening 1211a.

In this embodiment, the heating element 13 is in the form of a sheet, and the heating element 13 includes a liquid-guiding substrate (not shown) and a heating element (not shown), the heating element being disposed on a surface of the liquid-guiding substrate, the liquid-guiding substrate being for guiding the aerosol-generating substrate, and the heating element being for atomizing the aerosol-generating substrate. The material of the drainage matrix can be porous ceramic or compact material; when the liquid guiding substrate is made of a dense material, the material can be quartz, glass, dense 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 as needed.

It is understood 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 can also be formed by assembling two structural members from left to right, and the design is specifically performed 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 as an example.

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

In this embodiment, at least one micro groove 1211b is disposed on the wall of the lower liquid hole 1211, the micro groove 1211b extends from the end of the lower liquid hole 1211 close to the liquid storage cavity 10 to the inside of the lower liquid hole 1211, that is, the micro groove 1211b extends in the direction away from the liquid storage cavity 10 or in the direction close to the heating element 13, the micro groove 1211b has capillary force, so that the aerosol-generating substrate in the liquid storage cavity 10 can enter the micro groove 1211b under the capillary force and flow out of the micro groove 1211b under the gravity; and/or the wall of the heat generating body liquid suction cavity 130 opposite to the heat generating body 13 is provided with a plurality of fins 1212 arranged at intervals, 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 lower liquid hole 1211 to the heat generating body liquid suction cavity 130.

The wall of the drainage hole 1211 is provided with at least one microgroove 1211b, so that the internal space is increased, and the drainage speed is improved. Even if bubbles are retained in the lower liquid hole 1211 and occupy the space of the lower liquid hole 1211, the aerosol generating substrate can realize continuous liquid supply to the heating element 13 through the microgroove 1211b, and the heating element 13 is prevented from being empty; meanwhile, the aerosol generating substrate in the lower liquid hole 1211 is in a flowing state through the microgroove 1211b, the balance state of the bubbles in the lower liquid hole 1211 is broken, the bubbles are driven to move from the bottom of the lower liquid hole 1211 to the direction close to the liquid storage cavity 10, gas-liquid separation is achieved, the bubbles are discharged, the influence of the bubbles on liquid supply is reduced, sufficient liquid supply is ensured, and dry burning of the heating body is avoided.

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

Optionally, a bottom surface of the end of the micro groove 1211b away from the liquid storage chamber 10 and an inner surface of the lower liquid hole 1211 are in a cambered transition or a slant transition to ensure that the aerosol-generating substrate in the micro groove 1211b flows out smoothly. The inclination angle of the inclined plane 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 resistance to outflow is too great.

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

Optionally, the microgrooves 1211b are disposed on a portion of the walls of the lower liquid hole 1211, which is far from the mist outlet hole 1210. It can be understood that, during the atomization process, the bubbles entering from the heating element 13 enter the lower liquid hole 1211 through the opening 1211a, the opening 1211a is located at the part of the hole wall of the lower liquid hole 1211 close to the mist outlet hole 1210, and the microgrooves 1211b are arranged at the part of the hole wall of the lower liquid hole 1211 far from the mist outlet hole 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, thereby squeezing the bubbles and promoting the bubbles to be discharged from the lower liquid hole 1211 to the liquid storage cavity 10, and further reducing the influence of the bubbles on the liquid supply.

Specifically, the portion 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 is located on the side of the third wall 1211f close to the liquid storage chamber 10, and the second wall 1211d connects the first wall 1211c and the third wall 1211f. In this embodiment, the first wall 1211c and the third wall 1211f are parallel to the axial direction of the nebulizer 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 a tilted plane or a tilted 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, that is, the micro groove 1211b crosses the first wall 1211c and the second wall 1211d in the axial direction of the atomizer 1; since the second wall 1211d is a tilted plane or a cambered surface, the micro groove 1211b extends to the second wall 1211d, which is beneficial to the slope transition or the cambered surface transition between the bottom surface of the end of the micro groove 1211b far away from the liquid storage cavity 10 and the inner surface of the lower liquid hole 1211. That is, the micro groove 1211b includes a first groove section (not shown) and a second groove section (not shown), the first groove section is disposed on the first wall 1211c, and the second groove section is disposed 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 of the second channel section is angled away from the second wall 1211d, and the depth of the second channel section decreases in a direction away from the reservoir 10 to ensure that the aerosol-generating substrate in the microgrooves 1211b flows out smoothly.

Alternatively, the microgrooves 1211b may be provided on the walls of the lower liquid hole 1211 near the mist outlet 1210 or on other parts of the walls. It can be understood that, during the atomization process, the bubbles entering from the heating element 13 enter the lower liquid hole 1211 through the opening 1211a, the opening 1211a is located at a part 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 close to the opening 1211a in the lower liquid hole 1211 to squeeze the bubbles, so as to promote the bubbles to be discharged from the lower liquid hole 1211 to the liquid storage cavity 10, thereby reducing the influence of the bubbles on the liquid supply.

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

Referring to FIG. 5 in conjunction with FIG. 4, further, the two ends of the fin 1212 are respectively connected to the side walls of the openings 1211a of the two lower liquid holes 1211 near to the side of the liquid storage chamber 10. The distance D1 between the middle part of the side of the fin 1212 close to the heating element 13 and the heating element 13 is smaller than the distance D2 between the end of the side of the fin 1212 close to the heating element 13 and the heating element 13 (as shown in FIG. 2), so that the middle part of the side of the fin 1212 close to the heating element 13 is pointed, large bubbles entering from the heating element 13 during atomization can be divided into a plurality of small bubbles, the large bubbles are prevented from blocking the opening 1211a and/or the liquid discharge hole 1211, and smooth liquid discharge is ensured. Optionally, the fins 1212 are integrally formed with the top mount 121.

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

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 close to the fin 1212 is a plane; the distance between the side of the fin 1212 close to the heating body 13 and the heating body 13 is gradually increased 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 close to the heating body 13 is pointed. Specifically, the fin 1212 includes a first segment 1212a and a second segment 1212b connected to each other on a side close to the heating element 13, an included angle is formed between the first segment 1212a and the second segment 1212b, and a connection portion between the first segment 1212a and the second segment 1212b is an arc. Optionally, the diameter of the circular arc at the connection between the first segment 1212a and the second segment 1212b is 1mm-2mm; and/or the included angle formed between the first and second segments 1212a, 1212b is between 30 ° and 120 °. The joint of the first section 1212a and the second section 1212b is set to be in arc transition, so that the large bubbles can be divided, and meanwhile, the bottom bubbles can be smoothly discharged in the liquid discharging process.

Optionally, the fins 1212 have a V-shaped configuration. That is, not only the distance D1 between the heating element 13 and the intermediate portion of the fin 1212 on the side close to the heating element 13 is smaller than the distance D2 between the heating element 13 and the end portion of the fin 1212 on the side close to the heating element 13, but also the distance between the heating element 13 and the intermediate portion of the fin 1212 on the side away from the heating element 13 is smaller than the distance between the heating element 13 and the end portion of the fin 1212 on the side away from the heating element 13.

The fin 1212 in this application is a V-shaped structure, that is, the top wall of the heat-generating body liquid-sucking chamber 130 is not a flat top, but a structure with a lower middle and two higher sides. By making the fin 1212 have a V-shaped configuration, the bubbles of the heat-generating body 13 near the reservoir 10 during the atomization process can be guided downward to the lower liquid hole 1211 under the guidance of this shape, i.e., the V-shaped configuration of the fin 1212 facilitates the discharge of the bubbles of the heat-generating body 13 near the reservoir 10.

Optionally, the distance between the side of the fin 1212 close to the heating element 13 and the heating element 13 is 0.3mm to 2mm. It can be understood that the distance between the side of the fin 1212 close to the heating element 13 and the heating element 13 is set as above, so that the bubble of the heating element 13 close to the side of the liquid storage chamber 10 is blocked by the fin 1212 and prevented from growing to cause insufficient liquid supply because the distance between the fin 1212 and the heating element 13 is too close; when the aerosol-generating substrate on the side of the heating element 13 close to the liquid storage chamber 10 is consumed (that is, the aerosol-generating substrate in the heating element liquid suction chamber 130 is consumed) due to the fact that the distance between the fin 1212 and the heating element 13 is too far, large bubbles are formed to prevent liquid discharge when liquid is replenished again due to too large space between the heating element 13 and the fin 1212.

In the present embodiment, a plurality of fins 1212 are provided between the two openings 1211a of the two lower liquid discharge holes 1211, and the plurality of fins 1212 are 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 wall of the top chassis 121. The capillary grooves 1212c formed between adjacent two fins 1212 are equal in width. Since the fins 1212 have a V-shaped configuration, the capillary grooves 1212c formed between adjacent fins 1212 have a V-shaped configuration.

It can be understood that, during the atomization process, the bubbles entering from the heating element 13 exist in the space on the side of the heating element 13 close to the liquid storage chamber 10, that is, the heating element liquid suction chamber 130 formed between the heating element 13 and the top seat 121, the aerosol-generating substrate flowing out through the opening 1211a can flow to the heating element liquid suction chamber 130 through the capillary groove 1212c, and the space of the bubbles in the heating element liquid suction chamber 130 is occupied by the aerosol-generating substrate, so that the bubbles are discharged from the opening 1211a and the lower liquid hole 1211 under the extrusion of the aerosol-generating substrate and the self-buoyancy, thereby realizing gas-liquid separation and ensuring the liquid supply.

After the aerosol-generating substrate is added to the reservoir 10, the aerosol-generating substrate is inserted into the housing 10 and the aerosol-generating substrate is sealed off from the reservoir 10 by the aerosol-generating substrate holder 12. Before the liquid storage cavity 10 is 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 gas, when the atomizer 1 is used for the first time, the aerosol generating substrate flows to the heating element liquid suction cavity 130 from the lower liquid hole 1211, 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, and the space of the bubbles in the heating element liquid suction cavity 130 is occupied by the aerosol generating substrate, so that the bubbles are discharged from the opening 1211a and the lower liquid hole 1211 under the extrusion of the aerosol generating substrate and the self buoyancy, and dry burning is avoided.

Optionally, the spacing 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 fins 1212 have a thickness of 0.5 to 2 times the spacing between two adjacent fins 1212 to ensure a sufficient flow area to ensure flow of aerosol-generating substrate between the fins 1212 and flow of gas bubbles in the space outside the fins 1212. In one embodiment, the fins 1212 have a thickness of 0.8 to 1.2 times the spacing between adjacent two fins 1212.

In other embodiments, the surface of the baffle 1213 away from the reservoir 10 is V-shaped, and a plurality of grooves (corresponding to the capillary grooves 1212c between the plurality of fins 1212) are formed on the surface of the baffle 1213 away from the reservoir 10, and the side walls of the capillary grooves 1212c form the fins 1212. Specifically, the surface of the baffle 1213 away from the liquid storage cavity 10 has a plurality of V-shaped capillary grooves 1212c, that is, the capillary grooves 1212c have the same depth but are bent into a V-shape, and the cross section of the capillary grooves 1212c is not V-shaped. Both ends of the V-shaped capillary groove 1212c are connected to the two openings 1211a of the two lower liquid discharge holes 1211, respectively, and a distance between the middle portion of the V-shaped capillary groove 1212c and the heating element 13 is smaller than a distance between both ends of the V-shaped capillary groove 1212c and the heating element 13. One side of the heating element 13 close to the baffle 1213 is a plane; the distance between the V-shaped capillary groove 1212c and the heating element 13 gradually increases in the direction from the middle portion of the V-shaped capillary groove 1212c to both ends of the V-shaped capillary groove 1212c. It is understood that the plurality of V-shaped capillary grooves 1212c function as the plurality of fins 1212 to achieve the same technical effect; the V-shaped capillary grooves 1212c formed in the baffle 1213 can reduce the process difficulty relative to the fins 1212 provided in the baffle 1213.

In the test, the width of the micro groove 1211b was 0.4mm and the depth was 0.8mm; the bottom surface of one end of the micro groove 1211b far away from the liquid storage cavity 10 is in inclined 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 the capillary groove 1212c formed by the fin 1212 is 1mm, and the lowest point of the fin 1212 is transited by a fillet with the diameter of 1.4 mm. The experiment using the top seat 121 with the above structure and size shows that the air bubbles can be smoothly discharged in the liquid discharging process, the gas-liquid separation is realized, and the liquid supply is ensured.

The above are only embodiments of the present application, and not intended to limit the scope of the present application, and all equivalent structures or equivalent processes performed by the present application and the contents of the attached drawings, which are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims (14)

1. An atomizer, comprising:

a housing;

the atomization seat is arranged in the shell, the atomization seat is matched with the shell to form a liquid storage cavity, and the liquid storage cavity is used for storing aerosol generating substrates; the atomizing base is provided with a mounting cavity and a liquid discharging hole communicated with the mounting cavity;

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

wherein the 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 close to the liquid storage cavity to the inside of the lower liquid 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 gravity action;

and/or the wall of the liquid suction cavity of the heating element opposite to the heating element is provided with a plurality of fins 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 to the liquid suction cavity of the heating element from the liquid outlet.

2. The atomizer according to claim 1, wherein the bore wall of said weep hole is provided with at least one of said micro grooves having a depth of 0.2mm to 1mm and/or a width of 0.2mm to 1mm.

3. The atomizer according to claim 1, wherein the hole wall of the lower liquid hole is provided with at least one microgroove, and a cambered surface transition or an inclined surface transition is formed between the bottom surface of one end of the microgroove, which is far away from the liquid storage cavity, and the inner surface of the lower liquid hole.

4. The atomizer according to claim 1, wherein the atomizing base is provided with two liquid discharge holes and a mist outlet hole, the two liquid discharge holes are respectively located 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 lower liquid hole, which is far away from the mist outlet hole, is provided with the microgrooves.

5. The atomizer according to claim 4, wherein a portion of a hole wall of said downcomer hole, which is remote 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 close to said reservoir chamber, said second wall surface connecting said first wall surface and said third wall surface, said second wall surface being inclined to said mist outlet hole side with respect to said first wall surface;

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

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

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

7. The atomizer according to claim 6, wherein the distance between the side of said fin close to 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 arranged 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 between 0.2mm and 1mm; and/or the thickness of the fin is 0.5-2 times of the distance between two adjacent fins.

10. The atomizer according to claim 6, wherein a side of said heat-generating body adjacent to said fin is a flat surface; the distance between the side of the fin close to 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 one side of the fin close to the heating element 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.

12. A nebulizer as claimed in claim 11, wherein the arc has a diameter of 1mm to 2mm and/or the first segment forms an angle of 30 ° to 120 ° with the second segment.

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

one end of the mist outlet hole, which is far away from the liquid storage cavity, is provided with a baffle, and one side of the baffle, which is close to the heating element, is of a V-shaped structure; the fins are arranged on the surface of the baffle close to the heating body and are of a V-shaped structure; or, the baffle is close to the surface of heat-generating body is equipped with a plurality ofly the capillary groove, the capillary groove is whole to be the V type, the lateral wall of capillary groove forms the fin.

14. An electronic atomization device, comprising:

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

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

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