CN115413828A

CN115413828A - Atomization structure, atomizer and electronic atomization device

Info

Publication number: CN115413828A
Application number: CN202211065483.4A
Authority: CN
Inventors: 蓝锦; 谢发明; 赵沛彪
Original assignee: Shenzhen Smoore Technology Ltd
Current assignee: Shenzhen Smoore Technology Ltd
Priority date: 2022-09-01
Filing date: 2022-09-01
Publication date: 2022-12-02
Also published as: WO2024046134A1

Abstract

The application relates to an atomizing structure, atomizer and electron atomizing device, including leading fog shell, drain spare and slice heat-generating body, lead and be formed with airflow channel and holding chamber in the fog shell. The liquid guide piece is arranged in the accommodating cavity and provided with an atomizing surface and a liquid suction surface which are arranged oppositely, and the atomizing surface is arranged facing the airflow channel. The sheet heating element is accommodated in the mist guide shell and is arranged on the atomizing surface. This application uses slice heat-generating body structure, compares traditional tubulose heat-generating body and has higher efficiency of generating heat, helps improving the intensification rate of atomizing structure, has quick atomizing and the low effect of delaying, can improve the user and use experience and feel.

Description

Atomization structure, atomizer and electronic atomization device

Technical Field

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

Background

An electronic atomisation device typically comprises an atomising medium carrier for storing an aerosol-generating substrate, atomising structure for heating and atomising the aerosol-generating substrate to form an aerosol for consumption by a human smoker, and a power supply assembly for supplying power to the atomising structure.

When the existing electronic atomization device atomizes liquid media, a tubular heating body structure is generally adopted for heating and atomizing. The tubular heating element has a slow heating rate, which results in poor use feeling of the electronic atomization device.

Disclosure of Invention

Accordingly, it is desirable to provide an atomization structure, an atomizer, and an electronic atomization device that improve the above-mentioned drawbacks, in order to solve the problem that the user feels bad due to the slow temperature rise of the heating element in the electronic atomization device.

An atomizing structure comprising:

the mist guide shell is internally provided with an airflow channel and an accommodating cavity;

the liquid guiding piece is arranged in the accommodating cavity and provided with an atomizing surface and a liquid absorbing surface which are oppositely arranged, and the atomizing surface is arranged facing the airflow channel;

the sheet heating body is contained in the fog guide shell and is arranged on the atomizing surface.

In one embodiment, the atomization surface is recessed away from the sheet-shaped heating element along the thickness direction to form a containing groove, and the sheet-shaped heating element is arranged in the containing groove.

In one embodiment, the sheet-shaped heat-generating body is configured with mist passing holes penetrating both sides of the sheet-shaped heat-generating body in the thickness direction.

In one embodiment, the atomization surface is convexly provided with a convex column, and the convex column is arranged corresponding to the fog passing hole.

In one embodiment, the number of the mist passing holes is plural, and the distance between any two adjacent mist passing holes is smaller than the thickness of the sheet-shaped heat-generating body.

In one embodiment, the mist guiding shell comprises a shell body and a sealing sleeve, the air flow channel and a mounting channel are formed in the shell body, and the mounting channel penetrates through the shell body and is communicated with the air flow channel;

the seal cover is in sealing fit with the installation channel, and the interior of the seal cover is provided with the containing cavity.

In one embodiment, the liquid guide is a ceramic liquid guide.

In one embodiment, the atomization structure further comprises a shell, and the fog guide shell is accommodated in the shell; and an overflowing channel is formed between the shell and the fog guide shell at intervals and is communicated with the liquid suction surface and the liquid storage cavity.

In one embodiment, the atomizing structure further comprises an electromagnetic coil, and the sheet heating element is configured to generate heat under the action of an alternating magnetic field generated by the electromagnetic coil.

In one embodiment, the electromagnetic coil is wound on the periphery of the fog guide shell; and in the axial direction of the electromagnetic coil, the projection of the sheet heating element intersects with the projection of the electromagnetic coil.

In one of the embodiments, a projection length of the sheet heat-generating body in the axial direction of the electromagnetic coil is equal to an axial direction length of the electromagnetic coil.

In one embodiment, the thickness of the sheet heat-generating body is equal to 2 to 3 times the skin depth of the sheet heat-generating body.

An atomizer, comprising:

an atomising media carrier having a reservoir for storing an aerosol-generating substrate;

and the atomization structure is matched and connected with the atomization medium carrier, and the liquid storage cavity is in fluid communication with the liquid suction surface.

An electronic atomization device comprising:

a power supply component; and

the power supply assembly is used for supplying electric energy to the atomizer.

The atomizing structure, the atomizer, and the electronic atomizing device described above are configured such that the sheet-like heat-generating body is either higher than the tubular heat-generating body or thicker than the tubular heat-generating body sheet, while maintaining the same mass M as the tubular heat-generating body and without enlarging a lateral space (specifically, a space occupied in the radial direction of the tubular heat-generating body). When the heating body generates heat by magnetic induction, the shorter the height of the heating body is, the lower the heating efficiency is, and the thinner the heating body is, the lower the efficiency is, so that the heating efficiency of the sheet-shaped heating body is higher than that of the tubular heating body. Use slice heat-generating body structure, compare traditional tubulose heat-generating body and have higher efficiency of generating heat, help improving the intensification rate of atomizing structure, have quick atomizing and the low effect that delays, can improve the user and use experience and feel.

Drawings

Fig. 1 is an external view of an electronic atomizer according to an embodiment of the present disclosure;

FIG. 2 isbase:Sub>A cross-sectional view taken at A-A in the electron atomizer shown in FIG. 1;

FIG. 3 is a schematic view of a partial structure of the electron atomizer shown in FIG. 2;

FIG. 4 is another partial schematic view of the electrospray device shown in FIG. 2;

FIG. 5 is another orientation view of the structure shown in FIG. 4;

FIG. 6 is a cross-sectional view at B-B of the structure shown in FIG. 5;

FIG. 7 is a first perspective view of the structure of FIG. 4 in an exploded condition;

FIG. 8 is a second perspective view of the structure of FIG. 4 in an exploded condition;

FIG. 9 is another partial schematic view of the electrospray device shown in FIG. 2;

FIG. 10 is another orientation view of the structure shown in FIG. 9;

FIG. 11 is a top view of the structure shown in FIG. 10;

FIG. 12 is a cross-sectional view taken at C-C of FIG. 11;

FIG. 13 is a cross-sectional view taken at D-D of FIG. 11;

FIG. 14 is a schematic diagram of an atomizing structure in further embodiments of the present application;

FIG. 15 is a schematic view of the solenoid in the atomizing configuration of FIG. 14;

fig. 16 is a half sectional view of the solenoid coil shown in fig. 15.

Description of reference numerals:

1000. an electronic atomization device; 100. an atomizer; 10. an atomizing structure; 11. a mist guiding shell; 11a, a shell body; a1, an airflow channel; a2, installing a channel; a3, a transition channel; 11b, a sealing sleeve; b. an accommodating cavity; b1, a first part; b2, a second part; b3, a third part; 11c, a clamping part; 12. a liquid guiding member; 12a, an atomization surface; c. an accommodating groove; 12b, a liquid absorption surface; 12c, a convex column; 12d, a base portion; 12e, a protrusion; 13. a sheet-shaped heating element; 13a, a fog passing hole; 14. a housing; 14a, a liquid inlet channel; 14b, a flow passage; 14c, air inlet holes; 14d, an engaging part; 14e, a head; 14f, a barrel portion; 15. an electromagnetic coil; 15A, a first coil layer; 15B, a second coil layer; b1, a first coil portion; b2, a second coil part; b3, connecting a lead; 16. a first seal member; 17. a second seal member; 18. a shielding film; 20. an atomizing medium carrier; 21. a liquid storage cavity; 22. a suction channel; 200. a power supply component; 201. a power supply housing; 202. a microphone; 203. a battery; 204. a vent hole; x, thickness direction; y, a first direction; z, set axial direction.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" 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 defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and encompass, for example, both fixed and removable connections or integral parts thereof; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

In order to solve the problem mentioned in the background art that the heating element is heated slowly to cause the user to feel bad, an atomizing structure 10, an atomizer 100 and an electronic atomizing device 1000 are provided to improve the above-mentioned defects.

Please refer to fig. 1, fig. 2, and fig. 3, which are schematic structural diagrams of an electronic atomization device 1000 according to some embodiments of the present disclosure. The electronic atomising device 1000 comprises an atomiser 100 and a power supply assembly 200, the power supply assembly 200 being arranged to supply electrical energy to the atomiser 100, the atomiser 100 being able to generate heat and atomise an aerosol-generating substrate stored in the atomiser 100 when in an energised state.

The power supply assembly 200 may include a power supply housing 201 and a battery 203 housed within the power supply housing 201, the power supply assembly 200 providing power to the nebulizer 100 via its own battery 203. Power supply assembly 200 may also provide power to nebulizer 100 by connecting to mains electricity. The atomizer 100 is mated with a power supply housing 201 to achieve a mounting connection with the power supply assembly 200.

Further, the power module 200 may further include a microphone 202, where the microphone 202 is a conventional component in the art, and is used for sensing a change in air pressure to determine whether the user needs to use the aerosol, that is, whether the user needs to use the electronic atomization device 1000, and thereby controlling the power module 200 to be powered on or powered off from the atomizer 100, and the detailed structure and principle thereof are not described herein again. The power module 200 is a common component in the art, and may be disposed in various forms, and is not limited herein.

The atomiser 100 is a device which, when energised, is capable of atomising an aerosol-generating substrate to form an aerosol, the aerosol-generating substrate being a substance which is capable of being atomised to produce an aerosol. In particular, aerosol-generating substrates include, but are not limited to, tobacco smoke, medicinal liquids and the like aerosol-generating substrates.

Further, the atomizer 100 includes an atomizing medium carrier 20 and an atomizing structure 10, and the atomizing medium carrier 20 is coupled with the atomizing structure 10 (e.g., clamped, fastened, etc.). The atomising medium carrier 20 may comprise a separately provided reservoir 21 for storing the aerosol-generating substrate and a suction channel 22 for communicating the atomising structure 10 with the exterior as a passage for the aerosol generated by the atomising structure 10 to the exterior. The reservoir 21 may be disposed around the suction channel 22, or may be disposed side by side with the suction channel 22, and the specific form is not limited.

The atomizing structure 10 is in communication with both the reservoir 21 and the suction channel 22, and is configured to receive the aerosol-generating substrate from the reservoir 21 and, when energized, to atomize the aerosol-generating substrate and generate an aerosol, which is output to the air-using side via the suction channel 22.

In practice, the atomizing medium carrier 20 can be used as a mouthpiece for the user. When suction is applied from the air side via the suction chamber, aerosol-generating substrate in the reservoir 21 is able to enter the atomising structure 10 and be atomised.

The atomizing structure 10 of the atomizer 100 according to the embodiment of the present application will be described below.

Referring to fig. 3, 4, 5 and 6, an embodiment of the present application provides an atomizing structure 10, which includes a mist guiding housing 11, a liquid guiding member 12 and a sheet heating element 13, wherein an airflow channel a1 and a receiving cavity b are formed in the mist guiding housing 11. The liquid guide piece 12 is arranged in the accommodating cavity b, the liquid guide piece 12 is provided with an atomizing surface 12a and a liquid suction surface 12b which are oppositely arranged, and the atomizing surface 12a is arranged to face the air flow channel a 1. The sheet heating element 13 is housed in the mist guide case 11 and is provided on the atomizing surface 12 a.

The liquid conductor 12 refers to a member capable of absorbing the aerosol-generating substrate and allowing the aerosol-generating substrate to diffuse within itself. In particular, the liquid conductor 12 may have micro-pores therein, and the aerosol-generating substrate may be capable of flowing between the channels of the micro-pores under capillary forces to diffuse within the liquid conductor 12. Without limitation, the fluid-conducting member 12 may be high temperature cotton, a ceramic fluid-conducting member, or the like.

The liquid-absorbing surface 12b of the liquid-wicking member 12 is located on the flow path of aerosol-generating substrate flowing from the liquid storage chamber 21 to the receiving chamber b, and all diffuses into the liquid-wicking member 12 via the liquid-absorbing surface 12b when the aerosol-generating substrate passes the liquid-absorbing surface 12b.

Understandably, the liquid guiding member 12 is configured to be in sealing connection with the accommodating cavity b, and the aerosol generating substrate trying to enter the accommodating cavity b is absorbed into the liquid guiding member 12 through the liquid absorbing surface 12b, and does not directly enter the air flow channel a1 through the accommodating cavity b, so that the aerosol generating substrate in the liquid storage cavity 21 is prevented from leaking into the air flow channel a 1.

The sheet heating element 13 is a member that can be electrically heated, and can specifically realize the function of generating a substrate by atomizing aerosol based on resistance heating, infrared heating, and magnetic induction heating. The sheet heating element 13 can be connected to the liquid guiding element 12 and the mist guiding shell 11 in a clamping and fastening manner, and the specific fixing form is not limited.

The sheet heating element 13 may be located in the airflow channel a1, or may be located in the accommodating cavity b, or may be partially located in the airflow channel a1, and partially located in the accommodating cavity b, which is not limited in detail. The liquid guide member 12 may be partially located in the accommodating cavity b and partially extend out of the accommodating cavity b. The portion protruding out of the accommodation chamber b may extend into the airflow passage a1 or outside the mist guide housing 11. The liquid guide member 12 may be entirely located in the accommodating chamber b. Understandably, the atomizing surface 12a is located in the mist guide housing 11, and whether the liquid suction surface 12b is located in the mist guide housing 11 is not limited. When the sheet-shaped heat-generating body 13 and/or the liquid-guiding member 12 are located in the air flow path a1, only a part of the space of the air flow path a1 is occupied without obstructing the flow of the gas.

The air flow passage a1 is used for communicating with the suction passage 22, and the accommodation chamber b is used for communicating with the liquid storage chamber 21. The aerosol-generating substrate stored in the reservoir 21 is able to flow towards the receiving chamber b and is absorbed by the liquid-guiding member 12 when entering/about to enter the receiving chamber b. When the use of the atomized aerosol is required on the air side, the sheet heating element 13 generates heat and atomizes the aerosol-generating substrate in the liquid guide member 12 to form aerosol, and the aerosol enters the suction channel 22 through the air flow channel a1 and is finally used on the air side.

The sheet-shaped heat-generating body 13 has a sheet-shaped structure, and the sheet-shaped heat-generating body 13 has a small size in the thickness direction X and is in a sheet shape. The sheet-shaped heat-generating body 13 has two surfaces oppositely disposed in the thickness direction X thereof, one of which is disposed on the atomizing surface 12a of the liquid guide member 12 and the other of which is disposed toward the air flow passage a 1. At least one of the two surfaces of the sheet-shaped heat-generating body 13 may be in a configuration form of a plane, a wavy surface, or the like, and is not limited to a completely flat plane, allowing unevenness and undulation to some extent. The sheet heating element 13 may be a sheet structure formed by weaving heating wires, or may be an integral structure, and is not particularly limited.

The heat quantity W absorbed by the heating element is positively correlated with M delta T, wherein M is the mass of the heating element, and delta T is the temperature rise in unit time. At the same power and the same time, if Δ T is increased, M is increased or W is increased, that is, the heat generation efficiency of the heat generating element is increased. As can be seen from M = ρ V (ρ is density, V is volume), the sheet-shaped heat-generating body 13 is either higher than the tubular heat-generating body or thicker than the tubular heat-generating body sheet, without enlarging the lateral space (specifically, the space occupied in the radial direction of the tubular heat-generating body) while maintaining the same mass M as the tubular heat-generating body. When the heating element generates heat by magnetic induction, the shorter the height of the heating element, the lower the heating efficiency, and the thinner the heating element, the lower the efficiency, and therefore the heating efficiency of the sheet-shaped heating element 13 is higher than that of the tubular heating element.

Above-mentioned atomizing structure 10 uses 13 structures of slice heat-generating body, compares traditional tubulose heat-generating body and has higher efficiency of generating heat, helps improving atomizing structure 10's rate of rise of temperature, has quick atomizing and low effect of postponing, can improve the user and use experience and feel.

In some embodiments, the airflow channel a1 extends along a first direction Y intersecting the thickness direction X, one end of the accommodating cavity b is communicated with the airflow channel a1, and the other end of the accommodating cavity b penetrates through the mist guiding shell 11 along the thickness direction X. In the embodiment shown in fig. 2 to 8, the first direction Y is perpendicular to the thickness direction X. In fig. 2, the first direction Y corresponds to the vertical direction, and the thickness direction X corresponds to the horizontal direction. At this time, the aerosol-generating substrate enters the liquid guide 12 from the left-right direction, and then the aerosol formed by atomization flows from the top-bottom direction to the air using side through the air flow channel a1, so that the layout of the atomization structure 10 is compact. Of course, in other embodiments, the axial direction of the airflow channel a1 and the arrangement direction of the liquid guide member 12 and the sheet heating element 13 may also take other manners, which are not limited and described herein.

In some embodiments, fluid director 12 is a ceramic fluid director. Specifically, the ceramic liquid guiding member may be an alumina ceramic liquid guiding member, a silica ceramic liquid guiding member, an aluminum nitride ceramic liquid guiding member, a silicon nitride ceramic liquid guiding member, or the like. Optionally, the ceramic liquid-conducting member has a porosity of 80% and above, which may enhance diffusion of the aerosol-generating substrate.

Traditional electron atomizing device 1000 adopts the high temperature cotton as drain 12 more, and the problem of scorching and carbon deposit appears easily as drain 12 to the high temperature cotton. At this time, the liquid guiding member 12 is a ceramic liquid guiding member, and the melting point of the liquid guiding member 12 is high, so that the problems of scorching, carbon deposition and the like can be avoided.

In some embodiments, referring to fig. 7, the atomizing surface 12a is recessed away from the sheet-shaped heating element 13 along the thickness direction X to form a receiving groove c, and the sheet-shaped heating element 13 is disposed in the receiving groove c.

When the sheet-shaped heating element 13 is provided in the housing groove c, the sheet-shaped heating element 13 may be attached to the housing groove c at one surface in the thickness direction X, and the side surface of the sheet-shaped heating element 13 surrounding the one surface may be attached to the housing groove c, so that the contact area between the sheet-shaped heating element 13 and the atomizing surface 12a can be increased, and the heating efficiency of the sheet-shaped heating element 13 can be improved.

In some embodiments, referring to fig. 7 and 8, the sheet-shaped heat-generating body 13 is configured with mist passing holes 13a, and the mist passing holes 13a penetrate both sides of the sheet-shaped heat-generating body 13 in the thickness direction X.

The atomizing holes 13a are communicated with the atomizing surface 12a and the air flow channel a1, aerosol formed by atomizing the atomizing surface 12a can rapidly flow into the air flow channel a1 through the atomizing holes 13a, so that the release of the aerosol can be accelerated, and the atomizing structure 10 can have higher atomizing amount. The number of the mist passing holes 13a may be multiple, and the arrangement is flexible and is not limited.

In some embodiments, referring to fig. 7, the atomizing surface 12a is convexly provided with a convex pillar 12c, and the convex pillar 12c is disposed corresponding to the mist passing hole 13 a.

The convex column 12c is arranged corresponding to the fog passing hole 13a, that is, at least part of the convex column 12c is exposed from the fog passing hole 13 a. Alternatively, the stud 12c is inserted into the mist passing hole 13 a.

At this time, the route of the atomized aerosol flowing out of the stud 12c toward the airflow passage a1 is shorter, contributing to an aerosol having improved atomization efficiency. Meanwhile, the convex column 12c and the fog passing hole 13a can be used as a concave-convex matched structure, so that the rapid positioning and assembly of the sheet heating element 13 and the liquid guide element 12 are realized.

Alternatively, one stud 12c is inserted into one mist passing hole 13 a. Alternatively, the protruding columns 12c are inserted into only part of the mist passing holes 13 a. Optionally, all the mist passing holes 13a are inserted with convex columns 12c. Optionally, all the mist passing holes 13a are not inserted with the convex pillars 12c. Further optionally, when the convex pillar 12c is inserted into the mist passing hole 13a, a gap exists between the convex pillar 12c and the mist passing hole 13a, and the gap facilitates the flow of the atomized aerosol.

In some embodiments, referring to fig. 7 and 8, the number of the mist passing holes 13a is plural, and the distance between any two adjacent mist passing holes 13a is smaller than the thickness of the sheet-shaped heat-generating body 13.

The thickness of the sheet-shaped heat-generating body 13 means a projected length of the sheet-shaped heat-generating body 13 in the thickness direction X thereof. The spacing distance between two adjacent fog passing holes 13a refers to the minimum distance between the hole walls of two adjacent fog passing holes 13 a. When the fog passing holes 13a are circular holes, the distance between two adjacent fog passing holes 13a is the distance between two adjacent quadrant points of the two fog passing holes 13 a.

The mist passing holes 13a obstruct the transmission of the current, and if the interval between the adjacent mist passing holes 13a is too small, the resistance of the current passing through the heat generating body portion between the two mist passing holes 13a is large, and the current path becomes large, which is not favorable for increasing the temperature rising speed.

When the distance between any two adjacent mist passing holes 13a is smaller than the thickness of the sheet-like heating element 13, the current path is short, the resistance is small, and the temperature rise speed is high.

Alternatively, all the mist passing holes 13a are arranged in a line along the longitudinal direction of the sheet-like heat-generating body 13.

In some embodiments, one of the sheet-shaped heat-generating body 13 and the liquid guide 12 is configured with a positioning concave portion, and the other is configured with a positioning convex portion, and the positioning concave portion and the positioning convex portion are in positioning fit in the thickness direction X.

The positioning concave part can be a positioning groove, a positioning hole and the like, the positioning convex part can be a positioning column, a positioning bulge and the like, and the specific form is not limited.

At this time, the positioning fit between the positioning concave part and the positioning convex part can realize the rapid positioning and assembly of the sheet heating element 13 and the liquid guide member 12, and the assembly efficiency of the atomizing structure 10 can be improved. Meanwhile, the positioning concave part and the positioning convex part can increase the contact area between the sheet heating element 13 and the liquid guide member 12, and improve the atomization efficiency.

In some embodiments, referring to fig. 7 and 8, the mist guiding housing 11 includes a housing body 11a and a sealing sleeve 11b, an air flow channel a1 and a mounting channel a2 are formed in the housing body 11a, the mounting channel a2 penetrates through the housing body 11a and is communicated with the air flow channel a1, the sealing sleeve 11b is in sealing fit with the mounting channel a2, and an accommodating cavity b is formed in the sealing sleeve 11 b.

The sealing sleeve 11b may be a plastic member, and can be used to connect the liquid guide member 12 and the housing body 11a in a sealing manner. Specifically, the sealing sleeve 11b may be made of silicone, rubber, polydodecamide, tetrafluoroethylene, polyetheretherketone, polyethylene, polypropylene, polyvinyl fluoride, or the like. Specifically, the mounting passage a2 may be provided to penetrate in the thickness direction X of the sheet-shaped heat-generating body 13.

At this time, the sealing sleeve 11b not only facilitates the installation of the liquid guide member 12, but also realizes the sealing installation of the liquid guide member 12 and the mist guide shell 11, thereby avoiding liquid leakage.

In some embodiments, referring to fig. 9 to 13, the atomizing structure 10 further includes a housing 14, the mist guiding housing 11 is accommodated in the housing 14, an overflow channel 14b is formed between the housing 14 and the mist guiding housing 11 at an interval, and the overflow channel 14b communicates with the liquid suction surface 12b and the liquid inlet channel 14a.

The housing 14 may be, but is not limited to, a plastic, or ceramic. The mist guide housing 11 is housed in the housing 14, and forms a flow passage 14b with the housing 14, and the aerosol-generating substrate in the liquid storage chamber 21 reaches the liquid suction surface 12b through the flow passage 14b, and then diffuses into the liquid guide 12. The provision of the housing 14 is capable of guiding aerosol-generating substrate within the reservoir 21 to the liquid absorption surface 12b.

Further, the housing 14 has a liquid inlet passage 14a communicating with the reservoir chamber 21. Aerosol-generating substrate in reservoir chamber 21 passes through inlet channel 14a, through-flow channel 14b to the suction surface 12b.

The atomizing structure 10 can be coupled to the atomizing medium carrier 20 by the housing 14, which can be a snap fit, a fastening connection, or the like. Further, the atomizing structure 10 further includes a first sealing member 16, and the first sealing member 16 is sealingly connected between the housing 14 and the atomizing medium carrier 20 for preventing oil leakage from the reservoir 21. Further, the atomizing structure 10 further includes a second sealing member 17, and the second sealing member 17 is sealingly connected between the mist guiding housing 11 and the outer housing 14 for preventing the atomizing structure 10 from leaking (mist).

The fastening connection mentioned in the embodiments of the present application includes a screw connection, a rivet connection, a latch connection, and the like.

In some embodiments, referring to fig. 12 and 13, an air inlet 14c is disposed on the housing 14, and the air inlet 14c communicates the airflow channel a1 with the atmosphere. When the air using side needs to use air, the suction channel 22 generates an adsorption force, and the outside atmosphere enters the air flow channel a1 through the air inlet hole 14c and takes away the atomized aerosol, so that the air using side can easily obtain the aerosol.

In the embodiment shown in fig. 1 and 2, a vent hole 204 is provided at the bottom of the power supply casing 201, and the vent hole 204 communicates the air inlet hole 14c with the atmosphere. In other embodiments, the intake holes 14c may also be provided in direct communication with the atmosphere.

Referring to fig. 7 and 8 together, in some embodiments provided by the present application, the receiving cavity b includes a first portion b1, a second portion b2 and a third portion b3 sequentially communicated along the thickness direction X, the liquid guiding member 12 includes a base portion 12d and a protrusion portion 12e connected along the thickness direction X, the base portion 12d is coupled to the second portion b2, the protrusion portion 12e protrudes from the base portion 12d and is connected to the first portion b1 in a matching manner, and the third portion b3 is communicated with the flow passage 14b. The atomizing surface 12a is formed on the protrusion 12e, and the liquid-attracting surface 12b is formed on the base portion 12d and faces the third portion b3. The sealing sleeve 11b may be made of a soft material so as to facilitate the installation of the liquid guiding member 12 in the accommodating chamber b.

In some embodiments, referring to fig. 6 and 12, a transition channel a3 is further formed in the mist guiding shell 11, the transition channel a3 communicates with the airflow channel a1 and the air inlet 14c, and a flow area of an end of the transition channel a3 facing the air inlet 14c is smaller than a flow area of an end of the transition channel a3 facing the airflow channel a 1.

The end of the transition passage a3 facing the air inlet hole 14c is a far end, the end facing the air flow passage a1 is a near end, the flow area of the near end is smaller than that of the far end, and the air flow speed is increased when the air flow flows from the far end to the near end, so that the flow speed of the aerosol in the air flow passage a1 can be increased, and the aerosol supply speed of the atomizing structure 10 can be increased.

Specifically, the flow area of the transition passage a3 may decrease from the end facing the intake hole 14c to the end facing the airflow passage a 1.

In some embodiments, referring to fig. 9 in combination with fig. 7 and 8, the fog guide shell 11 further includes a clamping portion 11c, the housing 14 further includes a clamping portion 14d, and the clamping portion 11c is clamped with the clamping portion 14 d. Specifically, the engaging portion 11c is an engaging convex portion, and the engaging portion 14d is an engaging concave portion engaged with the engaging convex portion.

In some embodiments, the housing 14 includes a head portion 14e and a barrel portion 14f which are communicated with each other, the barrel portion 14f is arranged on one side of the head portion 14e, the mist guiding housing 11 is at least partially accommodated in the barrel portion 14f, the flow passage 11b is formed between the barrel portion 14f and the mist guiding housing 11, the periphery of the barrel portion 14f is used for sleeving the electromagnetic coil 15, and the projection sum of the barrel portion 14f and the electromagnetic coil 15 is positioned within the projection range of the head portion 14e in the arrangement direction of the head portion 14e and the barrel portion 14 f.

In the embodiment shown in fig. 10, the arrangement direction of the head portion 14e and the barrel portion 14f corresponds to the first direction. An electromagnetic coil 15 mentioned later is fitted around the outer periphery of the cylindrical portion 14 f. And the sum of the projections of the cylindrical portion 14f and the electromagnetic coil 15 is within the projection range of the head portion 14e in the arrangement direction, that is, the overall size of the electromagnetic coil 15 fitted around the cylindrical portion 14f in the thickness direction X does not exceed the size of the head portion 14e, thereby contributing to downsizing of the atomizing structure 10.

In the embodiment shown in fig. 3, the inlet passage 14a is provided in the head 14 e.

In some embodiments, referring to fig. 10, 12 and 13, the atomizing structure 10 further includes an electromagnetic coil 15, and the sheet heating element 13 is configured to generate heat under the action of an alternating magnetic field generated by the electromagnetic coil 15.

The electromagnetic coil 15 can generate an alternating magnetic field in a power-on state, and when the sheet heating element 13 is in the alternating magnetic field, magnetic induction is generated and current is generated, so that heating is realized. The sheet heating element 13 is a magnetic conductive heating element, and may be a pure iron heating element, a stainless steel heating element, a mild steel heating element, or the like, and the specific material of the sheet heating element 13 is not limited as long as it can generate heat under an alternating magnetic field. The principle of the magnetic conductive heating element for heating under the alternating magnetic field is common knowledge in the field, and is not described herein.

In some embodiments, referring to fig. 10, 12 and 13, the electromagnetic coil 15 is wound around the outer periphery of the mist guiding housing 11, and the projection of the sheet heating element 13 intersects with the projection of the electromagnetic coil 15 in the axial direction of the electromagnetic coil 15.

The axial direction of the electromagnetic coil 15 is the direction of the center line around which the electromagnetic coil 15 is wound. In this case, the electromagnetic coil 15 has a spiral shape, and can generate an alternating magnetic field in a wide range in the axial direction thereof, and the portion of the sheet-like heating element 13 located in the middle of the alternating magnetic field can generate heat by electromagnetic induction.

Specifically, the electromagnetic coil 15 is fitted over the outer wall of the housing 14. The electromagnetic coil 15 is spirally disposed, and may be a conventional single-layer spiral tubular coil, or a double-layer spiral tubular coil in the following embodiments.

In some embodiments, referring to fig. 14, 15 and 16, the electromagnetic coil 15 includes a first coil layer 15A and a second coil layer 15B. The first coil layer 15A is circumferentially arranged in the set axial direction Z, and the second coil layer 15B includes a first coil portion B1 and a second coil portion B2. The first coil portion B1 and the second coil portion B2 are wound outside the first coil layer 15A. Here, the first coil portion B1 and the second coil portion B2 are provided at intervals at both ends of the first coil layer 15A in the set axial direction Z.

The first coil layer 15A, the first coil portion B1, and the second coil portion B2 are all of a spiral coil structure. For convenience of understanding, the first coil layer 15A is divided into three sections in the set axial direction Z, a first section in which the first coil portion B1 is wound, a second section in which the second coil portion B2 is wound, and a third section. Accordingly, the electromagnetic coil 15 is divided in the set axial direction Z into a first end portion including the first coil portion B1 and the first section of the first coil layer 15A, a middle portion including the second coil portion B2 and the third section of the first coil layer 15A, and a second end portion including the second section of the first coil layer 15A.

The winding density refers to the number of turns of the coil per unit length. In the present embodiment, the number of coil turns in the first end portion is determined by the number of coil turns in the first coil portion B1 and the number of coil turns in the first segment of the first coil layer 15A, the number of coil turns in the second end portion is determined by the number of coil turns in the second coil portion B2 and the number of coil turns in the third segment of the first coil layer 15A, and the number of coil turns in the middle portion is determined only by the number of coil turns in the second segment of the first coil layer 15A in a unit length.

In the present embodiment, the first coil portion B1 and the second coil portion B2 are respectively wound around both ends of the first coil layer 15A, so that the winding density at both end portions of the electromagnetic coil 15 is higher than that at the middle portion thereof. The greater the winding density, the greater the number of coil turns per unit length, and the stronger the magnetic field strength generated by the electromagnetic coil 15 per unit length.

The inventor of the present application has intensively studied and found that, due to the spiral structure characteristic of the first coil layer 15A, the magnetic field strength of the second section is higher than the magnetic field strength of the first section and the third section, at this time, the first coil portion B1 and the second coil portion B2 are respectively wound on the first section and the third section, the winding density of the electromagnetic coil 15 in the first end region and the second end region is improved by the first coil portion B1 and the second coil portion B2, and the magnetic field strength difference caused by the magnetic field strength of the second section of the first coil layer 15A being higher than the magnetic field strength of the first section and the third section is compensated by improving the winding density, so that the magnetic field strength of the electromagnetic coil 15 at each position in the set axial direction Z is relatively balanced, which is helpful for relatively consistent heating power generated at each position of the heating element 13, and is helpful for ensuring the consistency of the atomization efficiency of the atomization structure 10, and improving the use feeling of users.

In some embodiments, the winding density of at least one of the first coil portion B1 and the second coil portion B2 increases from the end opposite to each other toward the end opposite to each other in the set axial direction Z.

When the first coil layer 15A is wound along the set axial direction Z according to the equal winding density to form the spiral tubular coil, the magnetic field intensity of the spiral tubular coil gradually decreases from the middle to the two ends, at this time, the winding density of the first coil part B1 and/or the second coil part B2 is also configured to gradually increase from one side of the middle part of the corresponding electromagnetic coil 15 to one side of the corresponding end part, so that the gradual change rule of the magnetic field intensity of the first coil layer 15A from the middle part to the two ends can be compensated, the magnetic field intensity at each position of the first coil layer 15A can be better balanced, and the magnetic field intensity at each position of the electromagnetic coil 15 is better uniform and consistent.

In some embodiments, the winding density of the first coil portion B1 and/or the second coil portion B2 in the set axial direction Z is equally arranged in the set axial direction Z.

The winding density is equal, i.e. the number of coil turns per unit length is equal. When the winding density of the first coil part B1 and/or the second coil part B2 is configured equally in the set axial direction Z, the number of turns of the coil of the electromagnetic coil 15 in the unit length of the first end part and the second end part is increased, so that the magnetic field strength of the electromagnetic coil 15 at the two end parts is improved, the difference between the magnetic field strength of the electromagnetic coil 15 at the middle part and the magnetic field strength of the end parts is reduced, the consistency of the heating power of the heating element 13 is improved, and the consistency of the atomization efficiency of the atomization structure 10 is improved.

In a specific embodiment, the winding densities of the first coil portion B1 and the second coil portion B2 are each configured such that the winding densities thereof increase from the end opposite to each other to the end opposite to each other. In another embodiment, the winding densities of the first coil portion B1 and the second coil portion B2 are both arranged equally in the set axial direction Z. In another embodiment, the winding density of the first coil portion B1 increases from one end facing the second coil portion B2 to one end facing away from the second coil portion B2, and the winding densities of the second coil portions B2 are arranged uniformly in the set axial direction Z. The arrangement of the winding density of each of the first coil portion B1 and the second coil portion B2 is mainly the above, and is not particularly limited to this, as long as it contributes to achieving a good uniformity of the magnetic field intensity at both end portions of the electromagnetic coil 15 and the magnetic field intensity at the middle portion of the electromagnetic coil 15.

It is to be understood that the winding density of the first coil portion B1 and/or the second coil portion B2 may be increased in the set axial direction Z by gradually decreasing the interval between adjacent coils when the first coil portion B1 and the second coil portion B2 are wound. Similarly, the winding density of the first coil part B1 and/or the second coil part B2 may be equally arranged in the set axial direction Z, and the intervals between the adjacent coils may be equally designed when the first coil part B1 and the second coil part B2 are wound.

In some embodiments, the winding densities of the first coil layers 15A are equally arranged in the set axial direction Z.

When the winding density of the first coil layer 15A is uniformly arranged in the set axial direction Z, the magnetic field intensity of the first coil layer 15A is gradually decreased from the middle portion to both ends along the set axial direction Z. At this time, the first coil portion B1 and the second coil portion B2 are respectively wound around the two end regions of the first coil layer 15A, which is helpful for compensating for the magnetic field intensity difference between the middle portion and the two ends of the first coil layer 15A, so that the magnetic field intensity of the electromagnetic coil 15 as a whole is relatively uniform in the set axial direction Z.

When the winding density of the first coil layer 15A is equally configured in the set axial direction Z, the first coil layer 15A can be wound according to a common spiral tubular coil, the winding process is mature, and the process difficulty of the first coil layer 15A can be reduced.

In some embodiments, the winding density in the middle of the first coil layer 15A is lower than the winding density at both ends of the first coil layer 15A in the set axial direction Z.

The middle portion of the first coil layer 15A may correspond to the second section thereof, and both ends of the first coil layer 15A may correspond to the first and second sections thereof. When the winding density of the middle portion of the first coil layer 15A is lower than the winding density of the two ends of the first coil layer 15A, the magnetic field intensity difference between the middle portion of the first coil layer 15A and the two ends thereof can be reduced, so that the winding lengths of the first coil portion B1 and the second coil portion B2 can be shortened, thereby reducing the cost of the electromagnetic coil 15.

In the present application, the arrangement of the winding densities of the first coil layer 15A, the first coil portion B1, and the second coil portion B2 is not limited, and the winding densities of the three may be equally or unequally arranged in the set axial direction Z, and the winding density of the middle portion of the electromagnetic coil 15 may be lower than the winding densities of both ends of the electromagnetic coil 15 as a whole, so that the electromagnetic intensity may be uniform at each position of the electromagnetic coil 15.

In some embodiments, referring to fig. 15, the second coil layer 15B further includes a connecting wire B3, and the connecting wire B3 electrically connects the first coil portion B1 and the second coil portion B2.

The connecting wire B3 may be a wire different from the material used for the first coil portion B1 and the second coil portion B2, or may be the same wire as the material used for the first coil portion B1 and the second coil portion B2, and in this case, the first coil portion B1 and the second coil portion B2 may be formed by winding the same wire.

In this case, the first coil portion B1 and the second coil portion B2 are electrically connected by the connecting wire B3, and the two portions can be connected in series to an external power supply, which contributes to simplification of a power supply route.

The lengths of the first coil portion B1 and the second coil portion B2 in the set axial direction Z may be equal or different. For example, when the winding density of a first section of the first coil layer 15A is smaller than that of a second section thereof, the length of the first coil portion B1 on the first section may be larger than that of the second coil portion B2 on the second section. When the winding densities of the first coil layer 15A are arranged uniformly, the lengths of the first coil portion B1 and the second coil portion B2 may be equal.

In some embodiments, the first coil layer 15A and the second coil layer 15B are formed by winding the same wire around the set axial direction Z.

Referring to fig. 5, two ends of the first coil layer 15A in the set axial direction Z are an end a and an end B, two ends of the first coil portion B1 in the set axial direction Z are an end C and an end D, and two ends of the second coil portion B2 in the set axial direction Z are an end E and an end F, respectively. The winding mode of the electromagnetic coil 15 formed by winding a conducting wire can be as follows: winding from the A end to the B end, then drawing the wire to the C end, and winding from the C end to the D end, then drawing the wire from the D end to the E end, and winding from the E end to the F end.

When the electromagnetic coil 15 is formed by winding a wire, the power supply control of the electromagnetic coil 15 is simpler.

Further, referring to fig. 2, the atomizing structure 10 further includes a shielding film 18, and the shielding film 18 is sleeved outside the electromagnetic coil 15. The shielding film 18 can shield the magnetic field, and thus can prevent the magnetic field from leaking and affecting the outside.

In some embodiments, the projected length of the sheet heat-generating body 13 in the axial direction of the electromagnetic coil 15 is equal to the axial length of the electromagnetic coil 15.

When the projection length of the sheet heating element 13 is longer than the axial length of the electromagnetic coil 15, the heating efficiency of the portion of the sheet heating element 13 beyond the range of the electromagnetic coil 15 is low, and the temperature rise is reduced. When the projection length of the sheet-shaped heat generating body 13 is shorter than the axial length of the electromagnetic coil 15, the portion of the electromagnetic coil 15 beyond the sheet-shaped heat generating body 13 cannot act on the sheet-shaped heat generating body 13 to generate heat, and the operating efficiency of the electromagnetic coil 15 is low.

At this time, the projected length of the sheet heating element 13 is equal to the axial length of the electromagnetic coil 15, and the operation efficiency of the electromagnetic coil 15 and the sheet heating element 13 can be brought to a preferable level.

In some embodiments, the thickness of the sheet-shaped heat-generating body 13 is equal to 2 to 3 times the skin depth of the sheet-shaped heat-generating body 13. The formula for calculating the skin depth is:

where δ is the skin depth and ρ isResistivity, μ ₀ Is a vacuum permeability, mu _r For relative conductivity, f is the frequency of the magnetic field, p, mu ₀ 、μ _r The three parameters are all known values for the materials adopted by the heating element, and the calculation mode is common knowledge in the field and is not described herein.

Specifically, the thickness of the sheet-shaped heat-generating body 13 may be 2 times, 2.5 times, 3 times, or the like of the skin depth thereof.

It was confirmed that when the thickness of the sheet-shaped heat-generating body 13 exceeded the skin depth of 2 to 3 times, the sheet-shaped heat-generating body 13 was too thick to cause a slow temperature rise. When the thickness of the sheet-like heat-generating body 13 is less than 2 to 3 times the skin depth, the sheet-like heat-generating body 13 is too thin to cause low heat-generating efficiency and insufficient function in long-time heating.

In addition, the present application also provides an atomizer 100 comprising an atomizing medium carrier 20 and the atomizing structure 10 described above, wherein the atomizing medium carrier 20 has a liquid storage chamber 21 for storing an aerosol-generating substrate, the atomizing structure 10 is coupled to the atomizing medium carrier 20, and the liquid storage chamber 21 is in fluid communication with the liquid absorption surface 12b.

In addition, the present application also provides an electronic atomizer 1000, which includes an atomizer 100 and a power supply assembly 200, wherein the power supply assembly 200 is used for supplying electric energy to the atomizer 100.

The atomizer 100 and the electronic atomizing device 1000 have all the advantages of the above embodiments, and are not described herein.

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

The above-mentioned embodiments only express several implementation modes of the present application, and the description thereof is specific and detailed, but not construed as limiting the scope of the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An atomizing structure, comprising:

the sheet heating body is contained in the fog guide shell and is arranged on the atomization surface.

2. The atomizing structure according to claim 1, wherein a receiving groove is formed in the atomizing surface in a recessed manner, and the sheet-like heat generating element is disposed in the receiving groove.

3. The atomizing structure according to claim 1, characterized in that the sheet-shaped heat-generating body is configured with mist passing holes that penetrate both sides of the sheet-shaped heat-generating body in the thickness direction.

4. The atomizing structure of claim 3, wherein said atomizing surface is provided with a convex column in a convex manner, and said convex column is disposed corresponding to said mist passing hole.

5. The atomizing structure according to claim 3, wherein the number of the mist passing holes is plural, and a spacing distance between any adjacent two of the mist passing holes is smaller than a thickness of the sheet-shaped heat-generating body.

6. The atomizing structure according to claim 1, wherein the mist guide housing includes a housing body and a sealing sleeve, the housing body having the air flow passage and a mounting passage formed therein, the mounting passage penetrating the housing body and communicating with the air flow passage;

the seal cover is in sealing connection with the installation channel, and the seal cover is internally structured with the accommodating cavity.

7. The atomization structure of claim 1, wherein the liquid-conductive member is a ceramic liquid-conductive member.

8. The atomizing structure of claim 1, wherein said atomizing structure further comprises a housing, said mist-directing housing being received within said housing; and an overflowing channel is formed between the shell and the fog guide shell at intervals and is communicated with the liquid suction surface and the liquid storage cavity.

9. The atomizing structure of claim 1, further comprising an electromagnetic coil, wherein the sheet-like heat generating body is configured to generate heat under the action of an alternating magnetic field generated by the electromagnetic coil.

10. The atomizing structure according to claim 9, wherein the electromagnetic coil is wound around the outer periphery of the mist guiding shell; and in the axial direction of the electromagnetic coil, the projection of the sheet heating element intersects with the projection of the electromagnetic coil.

11. The atomizing structure according to claim 10, characterized in that the projection length of the sheet-shaped heat-generating body in the axial direction of the electromagnetic coil is equal to the axial length of the electromagnetic coil.

12. The atomizing structure according to claim 9, characterized in that the thickness of the sheet-like heat-generating body is equal to 2 to 3 times the skin depth of the sheet-like heat-generating body.

13. An atomizer, comprising:

an atomising media carrier having a reservoir for storing an aerosol-generating substrate; and

the atomizing structure of any one of claims 1-12, said atomizing structure being mated to said atomizing medium carrier, and said reservoir being in fluid communication with said liquid-absorbing surface.

14. An electronic atomizer, comprising:

a power supply component; and

the nebulizer of claim 13, the power supply assembly to provide electrical power to the nebulizer.