CN114259084A

CN114259084A - Electronic atomization device and atomizer thereof

Info

Publication number: CN114259084A
Application number: CN202210051525.2A
Authority: CN
Inventors: 雷桂林; 罗智; 孙洪涛; 王洪钊; 任三兵; 朱彬彬; 曾祥龙
Original assignee: Hainan Moore Brothers Technology Co Ltd
Current assignee: Shenzhen Smoore Technology Ltd
Priority date: 2022-01-17
Filing date: 2022-01-17
Publication date: 2022-04-01
Also published as: EP4212033A1; JP2023104879A; US20230225417A1

Abstract

The invention relates to an electronic atomization device and an atomizer thereof. The base comprises an air inlet boss, the air inlet boss is provided with an upper surface facing the liquid storage cavity, and the upper surface is in a convex shape; a plurality of air inlet small holes extending from the liquid storage cavity from the upper surface are formed in the air inlet boss. Through the upper surface design with the boss that admits air for protruding shape, can make the regional trend that has the outside flow of condensate of boss central area admits air to can avoid a large amount of accumulations with the timely drainage of the condensate of a plurality of inlet aperture departments, reduce the condensate and follow the condition that this a plurality of inlet aperture were revealed.

Description

Electronic atomization device and atomizer thereof

Technical Field

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

Background

The electronic atomization device mainly comprises an atomizer and a power supply device. Existing atomizers typically have an air inlet opening in the base to introduce ambient air. Along with the continuation of suction process, a large amount of condensate have been accumulated in the inlet port, and the inlet port is blocked up easily to increased the resistance to suction during the suction, improved the noise, still had the weeping risk simultaneously.

Disclosure of Invention

The present invention is directed to an improved atomizer and an electronic atomizer having the same, which overcome the above-mentioned drawbacks of the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: constructing an atomizer, which comprises a liquid storage shell and a base, wherein a liquid storage cavity is formed in the liquid storage shell, and the base is arranged at one end of the liquid storage shell;

the base comprises an air inlet boss, the air inlet boss is provided with an upper surface facing the liquid storage cavity, and the upper surface is in a convex shape; a plurality of air inlet small holes extending from the liquid storage cavity from the upper surface are formed in the air inlet boss.

In some embodiments, the upper surface is a spherical surface.

In some embodiments, the plurality of inlet apertures includes a first plurality of inlet apertures and a second plurality of inlet apertures surrounding the first plurality of inlet apertures, the first and second inlet apertures having different inlet cross-sectional areas.

In some embodiments, the cross-sectional area of the air intake of the first air intake aperture is less than or greater than the cross-sectional area of the air intake of the second air intake aperture.

In some embodiments, the first plurality of air inlet apertures and the second plurality of air inlet apertures are respectively distributed in an annular array at equal intervals, and the number of the first air inlet apertures is smaller than the number of the second air inlet apertures.

In some embodiments, there are four first air inlet apertures, and the four first air inlet apertures are uniformly and symmetrically distributed along the center of the air inlet boss; the number of the second air inlet small holes is ten, and the ten second air inlet small holes are uniformly and symmetrically distributed along the center of the air inlet boss.

In some embodiments, the cross-sectional area of the air inlet of the first air inlet aperture is less than the cross-sectional area of the air inlet of the second air inlet aperture such that the aerodynamic noise of the nebulizer during operation is less than 61.4 dB.

In some embodiments, the susceptor includes a main body portion, and the inlet boss is formed by extending upward from an upper end of the main body portion.

In some embodiments, the body portion has an air inlet hole formed therein in communication with the plurality of air inlet apertures.

In some embodiments, the air intake cross-sectional area of the air intake hole is greater than the sum of the air intake cross-sectional areas of the plurality of air intake apertures.

In some embodiments, the nebulizer further comprises a liquid aspirating body disposed in the reservoir housing and in liquid-conducting communication with the reservoir chamber.

In some embodiments, the atomizer further comprises a seal disposed in the reservoir and sleeved on the base.

In some embodiments, the sealing member includes a boss portion disposed between the liquid suction member and the intake boss, the boss portion having an intake through hole formed therein in communication with the plurality of intake apertures.

In some embodiments, an upper end surface of the intake through hole is higher than an upper end surface of the boss portion.

In some embodiments, the gas inlet through hole comprises a gas inlet section facing the base and a gas outlet section far away from the base, and the cross-sectional area of the gas inlet section is larger than that of the gas outlet section.

In some embodiments, there is a smooth transition connection between the gas inlet section and the gas outlet section.

In some embodiments, the cross-sectional area of the air outlet at the end of the air inlet through hole far away from the air inlet boss is smaller than that of the air inlet boss.

In some embodiments, the sealing member includes a body portion, the body portion is annular and is sealingly disposed between the base and the liquid storage case, and two opposite sides of the boss portion are respectively connected to two opposite sides of the body portion.

In some embodiments, the atomizer further includes a heat generating seat disposed in the liquid storage shell and connected to the base in a fitting manner, and the liquid absorbing body is accommodated between the heat generating seat and the base.

The invention also provides an electronic atomization device which comprises the atomizer and a power supply device electrically connected with the atomizer.

The implementation of the invention has at least the following beneficial effects: through the upper surface design with the boss that admits air for protruding shape, can make the regional trend that has the outside flow of condensate of boss central area admits air to can avoid a large amount of accumulations with the timely drainage of the condensate of a plurality of inlet aperture departments, reduce the condensate and follow the condition that this a plurality of inlet aperture were revealed.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic perspective view of an electronic atomizer device according to some embodiments of the present invention;

FIG. 2 is a schematic longitudinal sectional view of an atomizer according to a first embodiment of the present invention;

FIG. 3 is a schematic perspective view of the heat generating component of FIG. 2;

FIG. 4 is a schematic cross-sectional view taken along line A-A of the heater module shown in FIG. 3;

FIG. 5 is a schematic view of a cross-sectional view B-B of the heater module shown in FIG. 3;

FIG. 6 is an exploded view of the heating element of FIG. 3;

FIG. 7 is a schematic perspective view of the base of FIG. 6;

FIG. 8 is a simulated noise distribution cloud of the base of FIG. 7;

FIG. 9 is a schematic perspective view of the seal of FIG. 6;

FIG. 10 is a perspective view of the heat-generating base of FIG. 6;

FIG. 11 is a side view of the heat generation block of FIG. 10;

FIG. 12 is a diagram showing a gas-liquid two-phase distribution of the liquid storage and air exchange structure when the heating element shown in FIG. 3 stops pumping during simulation analysis;

FIG. 13 illustrates a ventilation pressure profile of the heat generating component of FIG. 3;

FIG. 14 illustrates a perspective view of a heat generating component in some embodiments of the prior art;

FIG. 15 illustrates a ventilation pressure profile of the heat generating component of FIG. 14;

figure 16 shows a top view of a base in a first alternative of the invention;

FIG. 17 is a simulated noise distribution cloud of the base of FIG. 16;

FIG. 18 illustrates a top view of a base in some embodiments of the prior art;

FIG. 19 is a simulated noise distribution cloud of the base of FIG. 18;

figure 20 shows a schematic perspective view of a base according to a second alternative of the invention;

FIG. 21 is a schematic longitudinal view of the base of FIG. 20;

FIG. 22 shows a schematic condensate flow diagram of the base of FIG. 21;

FIG. 23 shows a schematic perspective view of a seal according to a third alternative of the invention;

figure 24 shows a schematic perspective view of a seal according to a fourth alternative of the invention.

Detailed Description

For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships that are based on the orientations and positional relationships shown in the drawings or the orientations and positional relationships that the products of the present invention will ordinarily place when in use, and are used merely for convenience in describing and simplifying the description, and do not 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 thus should not be construed as limiting the present invention.

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 invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, 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 an intermediate. 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.

Fig. 1 illustrates an electronic atomizer device 1 according to some embodiments of the present invention, where the electronic atomizer device 1 may be used for inhaling aerosol, and may include an atomizer 100 and a power supply device 200 electrically connected to the atomizer 100. The power supply device 200 is used to supply power to the atomizer 100, and the atomizer 100 is used to receive a liquid substrate and heat and atomize the liquid substrate after being electrified to generate aerosol. The atomizer 100 is disposed above the power supply device 200 in the longitudinal direction, and may be detachably or non-detachably connected to the power supply device 200.

As shown in fig. 2, the atomizer 100 according to the first embodiment of the present invention may include a liquid storage case 10 and a heat generating component 20 accommodated in the liquid storage case 10. A liquid storage cavity 110 for storing liquid substrate and an air outlet channel 120 for outputting aerosol are formed in the liquid storage shell 10. The heating element 20 includes a base element 30, an atomizing core 40 and a heating base element 50, wherein the atomizing core 40 is accommodated in a space formed between the base element 30 and the heating base element 50. The atomizing core 40 is in fluid-conducting communication with the reservoir 110 and in gas-conducting communication with the outlet channel 120 for thermally atomizing the liquid substrate adsorbed from the reservoir 110 to generate an aerosol. An aerosolizing chamber 420 is formed between the base member 30 and the aerosolizing cartridge 40 for effecting mixing of the aerosol and air.

Specifically, the liquid storage case 10 may include a case 11 having an open lower end, and an air outlet pipe 12 disposed in the case 11 in a longitudinal direction. The housing 11 has a cylindrical shape, and the cross section thereof may be substantially in the shape of a narrow and long ellipse, a racetrack, or the like. An annular liquid storage chamber 110 is defined between the inner wall surface of the housing 11 and the outer wall surface of the outlet pipe 12.

The outlet pipe 12 is connected to the inner side of the top wall of the housing 11 and may be coaxially disposed with the housing 11, and an inner wall surface of the outlet pipe 12 defines an outlet passage 120. In the present embodiment, the outlet tube 12 is integrally formed with the housing 11, for example, it may be integrally formed by injection molding. In other embodiments, the outlet tube 12 and the housing 11 may be formed separately and then assembled together.

As shown in fig. 2 to 7, the atomizing core 40 includes a liquid-absorbing body 41 and a heat-generating body 42 provided to the liquid-absorbing body 41. The liquid absorbing body 41 is communicated with the liquid storage cavity 110 in a liquid guiding way and is used for absorbing the liquid matrix from the liquid storage cavity 110 and conducting the liquid matrix to the heating body 42. The heating element 42 is electrically connected to the power supply device 200, and is configured to heat and atomize the liquid substrate adsorbed in the liquid absorbing body 41 after being electrified to generate heat, so as to generate aerosol.

The liquid-absorbing body 41 may be made of a material having a porous capillary structure such as porous liquid-absorbing ceramic, liquid-absorbing cotton, or the like. The liquid absorber 41 has an absorber surface 411 and a heat generating surface 412. The heat generating surface 412 is used for arranging the heat generating body 42, and the liquid absorbing surface 411 is used for absorbing the liquid matrix from the liquid storage chamber 110 and conducting the liquid matrix to the heat generating surface 412 through a porous capillary structure in the liquid absorbing body 41. Specifically, in the present embodiment, the liquid absorbing body 41 is a bowl-shaped porous liquid absorbing ceramic. The liquid absorption surface 411 is located on the side of the liquid absorption body 41 facing the reservoir 110, and the heat generation surface 412 is located on the side of the liquid absorption body 41 facing away from the reservoir 110. The heating element 42 is provided on the heating surface 412, that is, the heating element 42 is provided on the side of the liquid absorbent 41 facing the base unit 30.

The base assembly 30 may include a base 31 and an electrode column 33 longitudinally disposed through the base 31. The base 31 is fitted into the lower end opening of the housing 11 to seal and cover the lower end opening of the housing 11. The base 31 may include a plate-shaped body portion 311, a cylindrical sidewall 312 extending upward from an outer peripheral edge of the body portion 311, and two spaced-apart support arms 314 extending upward from an upper end of the body portion 311. The two supporting arms 314 are respectively located at two opposite sides of the main body 311 along the length direction, and can be used for being mutually clamped with the heat generating base 52. The upper end surface of the main body 311 and the inner wall surface of the cylindrical side wall 312 define a liquid storage space 3120, and the liquid storage space 3120 can store a certain amount of condensate, thereby further reducing leakage.

Further, the susceptor 31 further includes an air intake boss 313 extending upward from the upper end of the body portion 311. The intake bosses 313 are provided in the cylindrical side wall 312, and outer wall surfaces on both sides in the width direction thereof may be integrally joined to inner wall surfaces on both sides in the width direction of the cylindrical side wall 312, respectively. A plurality of small air inlet holes 3130 are formed in the top surface of the air inlet boss 313 to allow the external air to enter the atomizing chamber 420. The plurality of small air inlet holes 3130 may be distributed in an array, and the surface tension film formed on the plurality of small air inlet holes 3130 may also reduce leakage while ensuring sufficient air inlet amount. In addition, since air inlet small hole 3130 is formed in air inlet boss 313, the upper end surface of air inlet small hole 3130 is higher than the bottom surface of liquid storage space 3120, so that the risk of liquid leakage from air inlet small hole 313 can be further reduced.

Further, the plurality of small air inlet holes 3130 may include a plurality of first small air inlet holes 3131 and a plurality of second small air inlet holes 3132 surrounding the plurality of first small air inlet holes 3131. The first air inlet holes 3131 and the second air inlet holes 3132 may be respectively distributed in an annular (e.g., circular, elliptical, square, or polygonal) array at equal intervals. The number of first air inlet apertures 3131 may be smaller than the number of second air inlet apertures 3132, and in some embodiments, the number of first air inlet apertures 3131 may be 3 to 6, and the number of second air inlet apertures 3132 may be 6 to 15. In this embodiment, there are four first small air inlet holes 3131, and the four first small air inlet holes 3131 are uniformly and symmetrically distributed along the center of the air inlet boss 313; there are ten second small air inlet holes 3132, and the ten second small air inlet holes 3132 are uniformly and symmetrically distributed along the center of the air inlet boss 313.

The first and second air inlet holes 3131 and 3132 have different air inlet cross-sectional areas. By providing a plurality of small air inlet holes 3130 in the form of unequal cross-sections, aerodynamic noise can be reduced. Further, in the present embodiment, the air inlet cross-sectional area of the first air inlet aperture 3131 is smaller than the air inlet cross-sectional area of the second air inlet aperture 3132, and the plurality of first air inlet apertures 3131 and the plurality of second air inlet apertures 3132 are distributed in an annular array, that is, the structure of the air inlet aperture 3130 in the present embodiment is in the form of "outer large aperture, middle small aperture". The air inlet cross-sectional areas of the first air inlet small holes 3131 positioned in the inner ring are smaller, so that the leakage of condensate can be effectively reduced; the second air inlet holes 3132 in the outer ring have a larger air inlet cross-sectional area, which can balance the suction resistance and noise to ensure a sufficient air inlet area and a proper suction resistance.

An intake hole 3110 may be formed in the lower end surface of the body 311. The air intake holes 3110 extend in a longitudinal direction, and upper ends of the air intake holes 3110 communicate with lower ends of the plurality of air intake small holes 3130, thereby forming an air intake passage 315 that allows external air to enter the atomizing chamber 420. Further, an intake cross-sectional area of the intake hole 3110 is larger than a sum of intake cross-sectional areas of the plurality of intake holes 3130.

The body 311 is also provided with an electrode through-hole 3111 through which the electrode column 33 passes. The number of the electrode posts 33 is usually two, and the two electrode posts 33 are electrically connected to both poles of the heating element 42, respectively. The upper end surface of the electrode rod 33 is in contact with and electrically connected to the heating element 42, and the electrode rod 33 also functions to support the atomizing core 40. Accordingly, there are two electrode through holes 3111, and two electrode columns 33 are respectively longitudinally inserted into the two electrode through holes 3111. In the present embodiment, the two electrode through holes 3111 are located in the cylindrical sidewall 312 and may be respectively located at both sides of the intake boss 313 in the length direction. Further, the upper end surface of each electrode penetration 3111 may be higher than the bottom surface of the liquid storage space 3120, so that the risk of liquid leakage from the electrode penetration 3111 may be reduced.

The atomizer 100 may further include a fixing cap 60 in some embodiments, and the fixing cap 60 is sleeved outside the base 31 and sleeved on the lower end of the housing 11 to fix the base 31. Further, the fixing cover 60 may be snap-coupled with the housing 11, thereby achieving fixing between the fixing cover 60 and the housing 11. The fixing cover 60 may be made of metal, and the metal is less in thermal expansion and contraction deformation caused by temperature change, so that the atomizer 100 is more stable and reliable in fixing among the parts and has better sealing performance. In addition, the fixing cover 60 made of metal material can also be used for magnetic connection with the power supply device 200. It is understood that in other embodiments, the fixing cover 60 may not be provided, and the base 31 and the housing 11 may be fixed to each other by a snap connection, a threaded connection, an interference fit connection, or the like.

Further, as shown in fig. 3-6 and 9, the base assembly 30 further includes a sealing member 32 disposed around the base 31. The sealing member 32 is hermetically provided between the inner wall surface of the housing 11 and the outer wall surface of the base 31, and may be integrally molded using an elastic material such as silicone rubber. The sealing member 32 may include a body portion 321, two socket portions 322 respectively extending upward from two opposite sides of the body portion 321, and a boss portion 323 disposed between the other two opposite sides of the body portion 321. The main body 321 is annularly and hermetically sleeved between the outer wall surface of the cylindrical sidewall 312 and the inner wall surface of the housing 11, and the outer peripheral surface of the main body 321 can be in interference fit with the inner peripheral surface of the bottom end of the housing 11, so as to further improve the sealing performance.

The two engaging portions 322 are formed by extending upward from the outer edges of the body portion 321 on both sides in the longitudinal direction (longitudinal direction). The two engaging portions 322 are respectively engaged with both sides of the heat generating base 52, and can limit the long side direction of the sealing member 32, thereby preventing the long side direction of the sealing member 32 from being assembled in a skew manner. Since the two socket portions 322 occupy only the space in the long side direction in the housing 11, and do not occupy the space in the short side direction in the housing 11, this structure is advantageous for realizing the slim design of the atomizer 100.

Both side outer wall surfaces of the boss portion 323 are integrally joined to both side inner wall surfaces of the body portion 321 in the short side direction (width direction), respectively. The boss portion 323 can be fitted into the bottom of the heat generating base 52 to limit the short-side direction of the seal 32 and prevent the short-side direction of the seal 32 from being assembled in a distorted manner.

At least one air inlet through hole 3230 communicated with the plurality of air inlet small holes 3130 and the atomizing chamber 420, respectively, is formed in the boss portion 323 in a longitudinal direction. In the present embodiment, there is one air inlet through hole 3230, and the one air inlet through hole 3230 is provided coaxially with the boss portion 323 and the body portion 321. It is to be understood that, in other embodiments, the number of the intake through holes 3230 is not limited to one, and it may not be provided coaxially with the boss portion 323 and/or the body portion 321. The boss 323 is located above the plurality of small air inlet holes 3130, and when the liquid is fried on the heating surface 412 of the liquid absorbing body 41, the boss 323 prevents part of the droplets of the liquid from being directly fried on the surface of the small air inlet holes 3130, thereby reducing leakage. In addition, when the suction is stopped, the smoke flows back under the action of negative pressure, the backflow smoke is influenced by the boss part 323, and most of the backflow smoke is not in direct contact with the small air inlet hole 3130, so that the formation of condensate at the small air inlet hole 3130 is reduced, and the risk of liquid leakage is reduced.

The air inlet bore 3230 can include an air inlet section 3231 in communication with the plurality of air inlet apertures 3130 and an air outlet section 3232 in communication with the nebulizing chamber 420. In the present embodiment, the air inlet through hole 3230 has a contracted shape, that is, the cross-sectional area of the air inlet section 3231 is larger than that of the air outlet section 3232. The contracted air inlet through hole 3230 can collect air flow during air inlet, and increase flow rate, so that the aerosol in the atomizing chamber 420 is rapidly carried out by the air flow. When the suction is stopped, the smoke flows back under the action of the negative pressure, and the flow speed of the smoke is reduced from the air outlet section 3232 to the air inlet section 3231, so that the smoke backflow can be reduced. In addition, the cross-sectional area of the gas outlet section 3232 positioned at the upper portion is small, and the condensate is not easily leaked out, so that leakage can be reduced. Further, the cross-sectional area at the air outlet at the upper end of the air outlet section 3232 (the end away from the air inlet section 3231) may be smaller than the cross-sectional area of the air inlet boss 313.

To further reduce leakage, the upper end surface (the end surface facing the end of the atomizing chamber 420) of the gas outlet section 3232 may be higher than the upper end surface of the boss portion 323 therearound. Furthermore, the air inlet section 3231 and the air outlet section 3232 can be connected by a smooth transition of a curved surface, so that the airflow resistance at the connection between the air inlet section 3231 and the air outlet section 3232 can be reduced, the generation of vortex at the connection can be avoided, and the airflow noise can be effectively reduced.

The cross-sectional shapes of the inlet section 3231 and the outlet section 3232 may be the same or different. In this embodiment, the cross-sectional shape of the gas inlet section 3231 is circular, and the aperture of the gas inlet section 3231 gradually decreases from bottom to top (from the end far from the gas outlet section 3232 to the end near the gas outlet section 3232). The air outlet section 3232 is a through hole with a cross section in a racetrack shape, that is, the length of the long axis and the length of the short axis of the air outlet section 3232 are kept constant in the longitudinal direction. The gas inlet section 3231 and the gas outlet section 3232 are connected with each other through a smooth transition by a connecting section 3233, the connecting section 3233 has a first end communicated with the gas inlet section 3231 and a second end communicated with the gas outlet section 3232, the cross-sectional shape and size of the first end are consistent with the cross-sectional shape and size of the upper end of the gas inlet section 3231, the cross-sectional shape and size of the second end are consistent with the cross-sectional shape and size of the lower end of the gas outlet section 3232, and the cross-sectional shape of the connecting section 3233 gradually changes from a circular shape at the first end to a racetrack circular shape at the second end. It is understood that in other embodiments, the cross-sectional shapes of the inlet section 3231 and the outlet section 3232 can be circular, oval, square, etc.

The boss 323 is further provided with two electrode holes 3233 through which the two electrode columns 33 pass, respectively. The two electrode holes 3233 may be respectively located at both sides of the air inlet through hole 3230 in a length direction. Two avoiding holes 3210 are formed in the sealing member 32 corresponding to the two support arms 314, and the two support arms 314 can pass through the two avoiding holes 3210 to engage with the heat generating base 52. Specifically, the extension length of the boss portion 323 in the longitudinal direction is smaller than the extension length of the body portion 321 in the longitudinal direction, and the two escape holes 3210 are respectively formed between the outer wall surfaces of both sides of the boss portion 323 in the longitudinal direction and the inner wall surfaces of both sides of the body portion 321 in the longitudinal direction.

Further, a plurality of guiding grooves 3234 are formed on the concave top surface of the boss portion 323 and/or the concave bottom surface of the boss portion 323, and the plurality of guiding grooves 3234 connect the air inlet through hole 3230 and the two electrode holes 3233 with the avoiding hole 3210. The flow guide groove 3234 is a fine groove structure, and has a strong capillary force on the liquid substrate, and can absorb the leakage at the air inlet through hole 3230 and the two electrode holes 3233 under the action of the capillary force and guide the leakage to the avoiding hole 3210, so that the leakage falls into the liquid storage space 3120 through the avoiding hole 3210, and further less leakage occurs.

As shown in fig. 3-6 and 10-11, the heater socket assembly 50 includes a heater socket 52, and the heater socket 52 is connected to the base 31 to fix the atomizing core 40. In the present embodiment, the heat generating base 52 and the base 31 are made of plastic material, and the heat generating base 52 and the base 31 are fastened together.

At least one liquid inlet hole 520 for communicating the liquid absorbing body 41 with the liquid storage chamber 110 is formed in the heat generating base 52, and the liquid substrate in the liquid storage chamber 110 can be supplied to the liquid absorbing surface 411 of the liquid absorbing body 41 through the at least one liquid inlet hole 520. The atomizing core 40 is accommodated in the heat-generating seat 52, and at least one opening 527 is further formed in a side wall of the heat-generating seat 52 to expose at least a part of a side surface of the liquid absorbing body 41. In the present embodiment, there are two liquid inlet holes 520, and the two liquid inlet holes 520 are respectively located at both sides of the heat generation block 52 along the length direction. The openings 527 are two, and the two openings 527 are respectively located on both sides of the heat generation block 52 in the width direction.

Further, at least one liquid storage and air exchange structure 521 is formed on the outer surface of the heater base 52, and the at least one liquid storage and air exchange structure 521 is communicated with the liquid storage cavity 110 and can be used for balancing the air pressure in the liquid storage cavity 110. When the air pressure in the liquid storage cavity 110 is too low, the external air can enter the liquid storage cavity 110 through the liquid storage ventilation structure 521, so that the situation that liquid feeding is not smooth due to too low air pressure in the liquid storage cavity 110 is avoided, and dry burning is prevented.

Specifically, in the present embodiment, there are two liquid storage and air exchange structures 521, two liquid storage and air exchange structures 521 are respectively formed on two sides of the heating base 52 along the length direction, and the two liquid storage and air exchange structures 521 can be disposed in a rotational symmetry manner with respect to the central axis of the heating base 52.

Each liquid storage and air exchange structure 521 comprises an air exchange channel 522 formed at one end of the heating seat 52 close to the liquid storage cavity 110, a liquid storage tank 524 and a tension isolating tank 526 formed at one end of the heating seat 52 far away from the liquid storage cavity 110, a liquid suction groove opening 523 for communicating the air exchange channel 522 with the liquid storage tank 524, and an air exchange inlet 525 for communicating the air exchange channel 522 with the tension isolating tank 526. One end of the ventilation channel 522 is communicated with the liquid storage chamber 110, and the other end is respectively communicated with the liquid storage tank 524 and the tension isolating tank 526 through the liquid suction groove opening 523 and the ventilation inlet 525. Wherein the ventilation inlet 525 is configured to introduce external air into the ventilation channel 522, and the wicking slot 523 is configured to draw liquid substrate (e.g., condensate or weep in the ventilation channel 522, condensate or weep formed on the atomizing wick 40, or condensate or weep formed elsewhere) into the sump 524 by capillary force, thereby separating the ventilation from the reservoir and preventing the liquid substrate from blocking the ventilation channel 522. In addition, the width of the ventilation inlet 525 is greater than the width of the pipette slot 523, so that the pipette slot 523 generates a greater capillary force to suck the liquid medium in the ventilation channel 522 to the sump 524 via the pipette slot 523, thereby achieving gas-liquid separation.

Specifically, the ventilation passage 522 includes a plurality of ventilation grooves 5221 extending in the circumferential direction of the heat generation block 52, a gas guide groove 5222 communicating with the plurality of ventilation grooves 5221 and extending in the longitudinal direction, and a gas return groove 5223 communicating with the gas guide groove 5222 and extending in the transverse direction. The air grooves 5221 may be formed by recessing the outer circumferential surface of the heat-generating base 52 near one end of the reservoir 110, and the air grooves 5221 may be arranged in parallel at intervals. The air guide groove 5222 is formed by recessing the side surface of the heat generating base 52, one end of the air guide groove 5222 is communicated with the uppermost air exchange groove 5221, and the other end extends upward to the top surface of the heat generating base 52. The air return groove 5223 is formed by recessing the top surface of the heating base 52, one end of the air return groove 5223 is communicated with the air guide groove 5222, and the other end is communicated with the liquid inlet hole 520 on the corresponding side.

The ventilation grooves 5221, the air guide grooves 5222 and the air return grooves 5223 are all fine thin groove structures which can not obstruct the flow of gas, but obstruct the flow of the liquid substrate, ensure that the ventilation channel 521 has the functions of ventilation and liquid resistance, and reduce the possibility that the liquid substrate in the liquid storage cavity 110 leaks through the ventilation channel 521. In some embodiments, the width of the air exchanging groove 5221, the air guiding groove 5222 and the air returning groove 5223 may be 0.3-0.6 mm, and the depth may be 0.3-0.6 mm.

The reservoir 524 includes a plurality of sub reservoirs 5241 extending in the circumferential direction of the heat generation seat 52. The plurality of sub-reservoirs 5241 may be formed by recessing the outer peripheral surface of the heat-generating seat 52 away from the end of the reservoir 110, and the plurality of sub-reservoirs 5241 may be disposed in parallel at intervals. Further, both circumferential ends of each sub-reservoir 5241 may extend to the two openings 527, respectively, and communicate with the two openings 527, respectively, so that the sub-reservoir 5241 communicates with the liquid body 41. When the reservoir 524 is filled with condensate (or there is leakage of the liquid substrate from the air vent passage 522 to the reservoir 524), the capillary force between the liquid 41 and the reservoir 524 will draw the condensate (or liquid substrate) onto the liquid 41, reducing the risk of condensate being drawn back from the air vent passage 522 into the reservoir chamber 110 and leaking into the power supply apparatus 200.

The sub-reservoir 5241 has a fine groove structure, which has a strong capillary force on the liquid substrate, and can absorb the condensate in the breather tank 5221 by the capillary force. In some embodiments, the sub-reservoirs 5241 can have a width of 0.3-0.6 mm and a depth of 0.3-0.6 mm.

The tension isolation slot 526 has a wider width relative to the breather passage 522 and the sump 524 to prevent condensate in the sump 524 from being sucked back into the reservoir 110 to cause pressure fluctuation of the reservoir 110 to affect draining, so that the breather pressure is more stable. The tension isolation groove 526 may extend in a longitudinal direction, and a lower end thereof may communicate with the lowermost sub-reservoir 5241 and an upper end thereof communicates with the uppermost sub-reservoir 5241, so that the sub-reservoirs 5241 communicate with each other through the tension isolation groove 526. The width of the tension cut-off groove 526 may be greater than the width of the ventilation inlet 525. In some embodiments, the width of the tensile force isolation groove 526 may be 1 to 3mm, and the depth may be 0.5 to 1.2 mm.

The suction slot 523 and the ventilation inlet 525 can be respectively communicated with the two circumferential sides of one end of the ventilation channel 522 far away from the liquid storage cavity 110. In some embodiments, the vent inlet 525 can be in communication with one of the plurality of vent slots 5221 and the suction slot 523 can be in communication with another of the plurality of vent slots 5221. Specifically, in the present embodiment, the plurality of air vent grooves 5221 may include a first air vent groove 5224 positioned at the lowermost portion and a second air vent groove 5225 positioned above the first air vent groove 5224 and adjacent to the first air vent groove 5224. The upper end of the liquid suction port 523 may communicate with one circumferential side of the first air purge tank 5224, and the lower end may extend longitudinally downward to an uppermost one of the sub-reservoirs 5241 and communicate with the sub-reservoir 5241. The upper end of the ventilation inlet 525 may communicate with the other circumferential side of the second ventilation groove 5225, and the lower end extends downward in the longitudinal direction to communicate with the upper end of the tension cutoff groove 526. As shown by arrows in fig. 11, air enters the second air vent groove 5225 from the air vent inlet 525, then sequentially flows to the air vent groove 5222 through the air vent grooves 5221 located above the second air vent groove 5225, and finally enters the reservoir chamber 110 through the air return groove 5223, thereby balancing the air pressure in the reservoir chamber 110. In some embodiments, the width of the fluid slot 523 may be 0.3 to 0.6mm and the depth may be 0.3 to 0.6 mm. The width of the ventilation inlet 525 may be 0.6 to 1.5mm, and the depth may be 0.3 to 0.6 mm.

It is understood that in other embodiments, the vent inlet 525 and the suction port 523 may communicate with the same vent groove 5221, and the vent inlet 525 and the suction port 523 may communicate with both circumferential ends of the vent groove 5221 (e.g., the first vent groove 5224), respectively.

During the pumping process, the liquid substrate is pumped from the reservoir 110 to the ventilation channel 522, and the surface tension of the liquid substrate is overcome when the liquid substrate is pumped to the ventilation inlet 525, wherein the ventilation inlet 525 prevents the liquid substrate from being pumped out of the ventilation channel 522, and the bottom ring of the first ventilation grooves 5224 absorbs a portion of the liquid substrate. Fig. 12 shows a gas-liquid two-phase distribution diagram in the liquid-storage air-exchange structure 521 at the time of stopping suction, wherein the test conditions are suction 3s and stop 27s, and the liquid-phase volume fraction in the liquid-storage air-exchange structure 521 at the time of stopping suction 3s is tested. As can be seen from the gas-liquid two-phase distribution diagram, at the time of stopping the pumping, the liquid phase (mainly from leaking from the reservoir chamber 110 during the pumping) is mainly distributed in the ventilation channel 522, and the liquid phase in the reservoir 524 is distributed little or substantially without the liquid phase, so that the liquid substrate can be well prevented from flowing out of the ventilation channel 522.

Further, as shown in fig. 4-6, the heat generating seat assembly 50 further includes a sealing sleeve 53 covering the heat generating seat 52, and a sealing gasket 51 accommodated in the heat generating seat 52 and disposed between the heat generating seat 52 and the liquid absorbing body 41. The sealing sleeve 53 and the sealing gasket 51 can be made of elastic materials such as silica gel. The sealing gasket 51 can be in a ring sheet shape, and the sealing gasket 51 is tightly pressed between the heating seat 52 and the liquid absorption body 41 in a sealing way, so that the effects of buffering, ensuring the sealing property and preventing liquid leakage can be achieved. The sealing sleeve 53 is sleeved on the upper portion of the heating base 52, and is used for sealing the lower end of the liquid storage chamber 110 and sealing and isolating the atomizing chamber 420 from the liquid storage chamber 110. The outer peripheral surface of the sealing sleeve 53 may be interference fitted with the inner peripheral surface of the housing 11 to further improve the sealing performance. The top surface of the sealing sleeve 53 may be recessed to form a vent hole 530, the lower end of the outlet tube 12 may be embedded in the vent hole 530, and the outer circumferential surface of the lower end of the outlet tube 12 is in sealing fit with the hole wall of the vent hole 530, thereby sealing and isolating the outlet passage 120 from the liquid storage chamber 110.

Fig. 14 illustrates a heat generating assembly in some embodiments of the prior art, including an atomizing top 115, atomizing core 12, and atomizing base 116. Wherein, the outer surface of the atomizing top seat 115 is provided with a ventilation groove 112, and the ventilation groove 112 comprises a first sub ventilation groove 1121 and a second sub ventilation groove 1122. The outer surface of the atomizing base 116 is provided with a drainage groove 114 and a liquid storage groove 113, one end of the drainage groove 114 is communicated with the air exchange groove 112, and the other end of the drainage groove 114 is communicated with the liquid storage groove 113. The reservoir 113 includes a plurality of sub-reservoirs 1131.

Fig. 13 and 15 are graphs showing ventilation pressure curves of the heating element shown in fig. 3 and 14, respectively, wherein the horizontal axis represents suction time and the vertical axis represents reservoir pressure. In the test experiment, the test conditions are 3s pumping and 27s stopping, and the power is 6W; in the heating element shown in fig. 3, there are four ventilation grooves 5221, each ventilation groove 5221 has a width of 0.35mm and a depth of 0.4mm, the ventilation inlet 525 has a width of 1mm and a depth of 0.4mm, and the tension isolation groove 526 has a width of 2mm and a depth of 0.8 mm; in the heating element shown in fig. 14, there are four first sub ventilation slots 1121, each of the first sub ventilation slots 1121 has a width of 0.35mm and a depth of 0.4mm, and the inlet of the end of the drainage slot 114 communicating with the first sub ventilation slot 1121 has a width of 0.6mm and a depth of 0.4 mm. As can be seen from fig. 13 and 15, the ventilation pressure toggle range of the heating element shown in fig. 3 is smaller, and most of the heat is exchanged once (i.e. the ventilation time is shorter and the ventilation speed is faster); the ventilation pressure toggle range of the heating element shown in fig. 14 is large, and most of the two ports are ventilated once (i.e. the ventilation time is long and the ventilation speed is slow). In comparison, the heat generating element shown in fig. 3 has higher ventilation stability, and in addition, since it has a shorter ventilation path without passing through the bottom ring of the first ventilation groove 5224 during ventilation, it has a smaller ventilation pressure and a faster ventilation speed, and thus, it is able to effectively avoid the occurrence of scorching smell and less smoke due to poor ventilation.

Fig. 16 shows a base 31 in a first alternative of the present invention, which differs from the first embodiment described above mainly in that in the present embodiment, the air inlet cross-sectional area of first air inlet aperture 3131 is larger than the air inlet cross-sectional area of second air inlet aperture 3132, i.e. its air inlet aperture 3130 is in the form of a "peripheral aperture, central large aperture".

Fig. 18 illustrates a base 31 in some embodiments of the prior art, where the air inlet cross-sectional area of a first air inlet aperture 3131 is equal to the air inlet cross-sectional area of a second air inlet aperture 3132 in the base 31.

Fig. 8, 17 and 19 show simulated noise distribution clouds of the pedestals shown in fig. 7, 16 and 18, respectively. In the test experiments, the pedestals shown in fig. 7, 16, 18 each include four first inlet orifices 3131 and ten second inlet orifices 3132; in FIG. 7, the first air inlet aperture 3131 is 3.5mm in diameter and the second air inlet aperture 3132 is 4.5mm in diameter, with a maximum aerodynamic noise of 61.37 dB; in FIG. 16, the aperture of first air inlet aperture 3131 is 4.5mm, the aperture of second air inlet aperture 3132 is 3.5mm, and its maximum aerodynamic noise is 66.52 dB; in fig. 18, the first and second air inlet holes 3131, 3132 each have a hole diameter of 3.5mm, and the maximum aerodynamic noise is 70.83 dB. As can be seen from fig. 8, 17 and 19, the staggered arrangement of the small air inlet holes in fig. 7 and 16 can significantly reduce the aerodynamic noise during suction, while the arrangement of the small air inlet holes in fig. 18 has larger aerodynamic noise. In addition, the air inlet small hole structure with the form of 'large holes at the periphery and small holes at the middle part' shown in the figure 7 has the smallest pneumatic noise during suction and the best uniform flow guiding effect on air flow. Therefore, the air inlet cross-sectional area of the first air inlet aperture 3131 may be smaller than that of the second air inlet aperture 3132, and the aerodynamic noise of the atomizer 100 during operation may be smaller than 61.4dB by selecting the appropriate number and size (e.g., aperture or air inlet cross-sectional area) of the first air inlet aperture 3131 and the second air inlet aperture 3132.

Fig. 20-21 show a susceptor 31 in a second alternative of the invention, which differs from the first embodiment described above mainly in that in the present embodiment the upper surface 3133 of the air intake bosses 313 is convex in shape, in particular, the upper surface 3133 may be a spherical surface. A plurality of air inlet apertures 3130 in air inlet boss 313 extend downwardly from upper surface 3133. In other embodiments, the upper surface 3133 may have other shapes such as a truncated cone. A second peripherally located air inlet aperture 3132 may be provided adjacent an outer edge of upper surface 3133.

As shown in fig. 22, by designing the air inlet boss 313 to have a convex shape with an inner hole and an outer hole, the condensate film boundary 35 formed at the second air inlet hole 3132 on the outer periphery has a substantially spherical shape and communicates with the condensate stored in the liquid storage space 3120, so that the condensate tends to flow outside the air inlet hole 3130, the direction of the condensate flow being shown by the arrows in fig. 22. When the small air inlet hole 3130 is covered with condensate, the condensate is difficult to flow out because the aperture of the first small air inlet hole 3131 in the middle is small; and the condensate of the peripheral second air inlet aperture 3132 is communicated with the condensate stored in the base 31, and is easily taken away by the condensate stored in the base 31, so that the condensate can be diffused in the liquid storage space 3120 of the base 31 in time, and the air inlet aperture 3130 is not easily blocked.

Fig. 23 shows a seal member 32 in a third alternative of the present invention, which is different from the first embodiment mainly in that in the present embodiment, an electrode hole 3233 is not provided in a boss portion 323, and in addition, a relief groove 3235 communicating with a relief hole 3210 is formed concavely in each of both side surfaces of the boss portion 323 in the longitudinal direction, and this structure can reduce the influence on the shape and size when the air intake through hole 3230 is designed.

Fig. 24 shows a seal member 32 in a fourth alternative of the present invention, which is mainly different from the first embodiment described above in that, in the present embodiment, the boss portion 323 is not provided with the electrode hole 3233, and this structure can reduce the influence on the shape and size at the time of designing the air intake through hole 3230.

It is to be understood that the above-described respective technical features may be used in any combination without limitation.

The above examples only express the preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several changes and modifications can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.

Claims

1. An atomizer is characterized by comprising a liquid storage shell (10) and a base (31), wherein a liquid storage cavity (110) is formed in the liquid storage shell, and the base (31) is arranged at one end of the liquid storage shell (10);

the base (31) comprises an air intake boss (313), the air intake boss (313) having an upper surface (3133) facing the reservoir chamber (110), the upper surface (3133) being convex in shape; a plurality of air inlet small holes (3130) extending from the upper surface (3133) away from the reservoir (110) are formed in the air inlet boss (313).

2. A nebulizer as claimed in claim 1, wherein the upper surface (3133) is a spherical surface.

3. A nebulizer as claimed in claim 1, wherein the plurality of air inlet apertures (3130) comprises a first plurality of air inlet apertures (3131) and a second plurality of air inlet apertures (3132) surrounding the first plurality of air inlet apertures (3131), the first and second air inlet apertures (3131, 3132) having different cross-sectional air inlet areas.

4. A nebulizer as claimed in claim 3, wherein the cross-sectional air inlet area of the first air inlet aperture (3131) is smaller or larger than the cross-sectional air inlet area of the second air inlet aperture (3132).

5. A nebulizer as claimed in claim 3, wherein said first plurality of air inlet apertures (3131), said second plurality of air inlet apertures (3132) are each arranged in an annular array with equal spacing, and wherein the number of first air inlet apertures (3131) is smaller than the number of second air inlet apertures (3132).

6. A nebulizer as claimed in claim 3, wherein there are four first air inlet apertures (3131), and the four first air inlet apertures (3131) are evenly and symmetrically distributed along the centre of the air inlet boss (313); the number of the second small air inlet holes (3132) is ten, and the ten second small air inlet holes (3132) are uniformly and symmetrically distributed along the center of the air inlet boss (313).

7. A nebulizer as claimed in claim 3, wherein the cross-sectional air inlet area of the first air inlet aperture (3131) is smaller than the cross-sectional air inlet area of the second air inlet aperture (3132) such that the aerodynamic noise of the nebulizer when in operation is less than 61.4 dB.

8. A nebulizer as claimed in claim 1, wherein the base (31) comprises a body portion (311), the air intake boss (313) being formed by an upper end face of the body portion (311) extending upwardly.

9. A nebulizer as claimed in claim 8, wherein the main body portion (311) has an air intake hole (3110) formed therein communicating with the plurality of small air intake holes (3130).

10. A nebulizer as claimed in claim 9, wherein the air intake hole (3110) has an air intake cross-sectional area larger than the sum of the air intake cross-sectional areas of the plurality of air intake apertures (3130).

11. A nebulizer as claimed in any one of claims 1 to 10, further comprising a liquid attracting fluid (41) disposed in the reservoir housing (10) and in fluid conducting communication with the reservoir chamber (110).

12. A nebulizer as claimed in claim 11, further comprising a seal (32) disposed in the reservoir housing (10) and sleeved on the base (31).

13. A nebulizer according to claim 12, wherein the sealing member (32) comprises a boss portion (323), the boss portion (323) being provided between the liquid suction body (41) and the air intake boss (313), the boss portion (323) being formed with an air intake through hole (3230) communicating with the plurality of air intake holes (3130).

14. A nebulizer according to claim 13, wherein an upper end surface of the air intake through hole (3230) is higher than an upper end surface of the boss portion (323).

15. A nebulizer as claimed in claim 13, wherein the air inlet through hole (3230) comprises an air inlet section (3231) towards the base (31) and an air outlet section (3232) away from the base (31), the air inlet section (3231) having a cross-sectional area larger than the cross-sectional area of the air outlet section (3232).

16. A nebulizer as claimed in claim 15, wherein the gas inlet section (3231) and the gas outlet section (3232) are connected by a smooth transition.

17. A nebulizer as claimed in claim 13, wherein the cross-sectional area of the outlet at the end of the inlet bore (3230) remote from the inlet boss (313) is less than the cross-sectional area of the inlet boss (313).

18. A nebulizer as claimed in claim 13, wherein the sealing member (32) comprises a body portion (321), the body portion (321) is annular and sealingly arranged between the base (31) and the reservoir housing (10), and opposite sides of the boss portion (323) are connected to opposite sides of the body portion (321), respectively.

19. A nebulizer as claimed in claim 11, further comprising a heating base (52) disposed in the liquid storage case (10) and connected to the base (31), wherein the liquid absorbing material (41) is accommodated between the heating base (52) and the base (31).

20. An electronic atomisation device comprising an atomiser as claimed in any of claims 1 to 19 and power supply means electrically connected to the atomiser.