CN118056501A

CN118056501A - Electronic atomizing device and atomizer thereof

Info

Publication number: CN118056501A
Application number: CN202211458711.4A
Authority: CN
Inventors: 曾祥龙; 陈方豪; 杨纪永; 汪新宇
Original assignee: Seymour International Holdings Ltd
Current assignee: Seymour International Holdings Ltd
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2024-05-21

Abstract

The invention discloses an electronic atomization device and an atomizer thereof. The atomizing cavity comprises an atomizing surface for generating aerosol and a side wall surface opposite to the atomizing surface, and the air inlet channel comprises a first air inlet part, a second air inlet part and a third air inlet part which are sequentially arranged side by side. The first air inlet part is arranged close to the side wall surface, the air flow entering from the first air inlet part can form an air curtain against the side wall surface, the aerosol sprayed from the atomization surface is isolated from the side wall surface, and condensation formed by spraying the aerosol on the side wall surface is reduced; the third air inlet part is arranged close to the atomization surface and aims to cool the heating element, prevent carbon deposition caused by overheating of the heating element and reduce the residue of aerosol on the atomization surface; the second air inlet part is positioned between the first air inlet part and the third air inlet part, and the air flow entering from the second air inlet part is mainly used for taking the aerosol out of the atomizing cavity.

Description

Electronic atomizing 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 atomizing device is used for heating and atomizing the atomized liquid matrix to generate aerosol for absorption. The loss of the flue gas in the air passage of the existing electronic atomization device is large. In general, the flue gas and large-particle aerosol atomized by the atomizing surface of the atomizing core can be sprayed out along the direction perpendicular to the atomizing surface, if the flue gas and the large-particle aerosol are sprayed on the surface of a part, the flue gas can be condensed due to the temperature difference, the more the condensation is, the larger the flue gas loss is, the smoke quantity can be greatly reduced, and meanwhile, the taste is also deteriorated.

Disclosure of Invention

The invention aims to solve the technical problem of providing an improved atomizer and an electronic atomization device with the atomizer aiming at the defects in the prior art.

The technical scheme adopted for solving the technical problems is as follows: constructing an atomizer, comprising an atomization cavity and an air inlet channel communicated with the atomization cavity; the atomizing chamber including be used for generating the atomizing face of aerosol and with the lateral wall face that the atomizing face set up relatively, the air inlet channel is including the first portion of admitting air, second portion of admitting air and the third portion of admitting air that set up side by side in proper order, first portion of admitting air is close to the lateral wall face sets up, third portion of admitting air is close to the atomizing face sets up.

In some embodiments, the angle between the axis of the air inlet channel and the atomizing face is 0 ° to 85 °.

In some embodiments, the first air inlet portion, the second air inlet portion, and the third air inlet portion each include at least two air inlet holes arranged at intervals.

In some embodiments, the at least two air inlet holes are arranged at intervals along a straight line or a curve.

In some embodiments, the first air inlet, the second air inlet, and the third air inlet each include an air inlet aperture, and the cross-sectional shape of the air inlet aperture is a bar.

In some embodiments, the cross-sectional shape of the one air intake hole is a bar shape extending along a straight line or a curved line.

In some embodiments, the first air intake portion, the second air intake portion, and the third air intake portion extend in parallel.

In some embodiments, a distance between a center line of the first air inlet portion and the side wall surface is 0.3mm to 2.0mm.

In some embodiments, the distance between the center line of the second air inlet portion and the center line of the third air inlet portion is 0.6mm to 1.5mm.

In some embodiments, the total intake area of the intake passage is 0.5mm ²～3.0mm².

In some embodiments, the atomizing face and the sidewall face are parallel or form an included angle.

In some embodiments, the atomizer further comprises an air outlet channel in communication with the atomizing chamber, the axis of the air outlet channel being parallel to or at an angle to the atomizing face.

In some embodiments, the axis of the outlet channel is parallel to the axis of the inlet channel.

In some embodiments, the atomizer further comprises a liquid absorbing body and a heating body at least in contact with the liquid absorbing body, wherein a side surface of the liquid absorbing body, which is in contact with the heating body, forms the atomizing surface.

In some embodiments, the distance between the center line of the third air inlet part and the edge of the heating body close to the third air inlet part is 0-1.0 mm.

In some embodiments, the atomizer comprises a housing and a base at least partially received within the housing, the atomizing chamber is located within the housing, and the air inlet passage is formed on the base.

In some embodiments, the atomizer further comprises a heat generating seat housed within the housing, the wick being housed between the base and the heat generating seat.

The invention also provides an electronic atomising device comprising an atomiser as claimed in any one of the preceding claims.

The implementation of the invention has at least the following beneficial effects: the first air inlet part is arranged close to the side wall surface, the air flow entering from the first air inlet part can form an air curtain against the side wall surface, the aerosol sprayed from the atomization surface is isolated from the side wall surface, and condensation formed by spraying the aerosol on the side wall surface is reduced; the third air inlet part is arranged close to the atomization surface and aims to cool the heating element, prevent carbon deposition caused by overheating of the heating element and reduce the residue of aerosol on the atomization surface; the second air inlet part is positioned between the first air inlet part and the third air inlet part, and the air flow entering from the second air inlet part is mainly used for taking the aerosol out of the atomizing cavity.

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 atomizing device according to a first embodiment of the present invention;

FIG. 2 is a schematic view of an exploded structure of the electronic atomizing device shown in FIG. 1;

FIG. 3 is a schematic longitudinal cross-sectional view of the atomizer of FIG. 2;

FIG. 4 is a schematic cross-sectional view of a part of the structure of the atomizer shown in FIG. 3;

FIG. 5 is an exploded view of the portion of the structure shown in FIG. 4;

FIG. 6 is a top view of the base in a first alternative of the invention;

FIG. 7 is a top view of a base in a second alternative of the invention;

fig. 8 is a schematic longitudinal sectional view of a atomizer in a second embodiment of the invention.

Detailed Description

For a clearer understanding of technical features, objects and effects of the present invention, a detailed description of embodiments of the present invention will be made 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. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

In the description of the present invention, it should be understood that the terms "longitudinal," "transverse," "width," "thickness," "front," "rear," "upper," "lower," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship in which the product of the present invention is conventionally put in use, merely for convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

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

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

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

Fig. 1-2 show an electronic atomizing device 1 in a first embodiment of the present invention, the electronic atomizing device 1 comprising an atomizer 100 and a power supply device 200 cooperatively connected with the atomizer 100. The power supply device 200 typically includes a battery for powering the atomizer 100 and a control circuit for controlling the heat generation of the atomizer 100. The atomizer 100 is for receiving a liquid substrate and heating the liquid substrate to atomize upon energization to generate an aerosol. In some embodiments, the atomizer 100 and the power supply 200 may each have a generally oval cylindrical shape and may be mechanically and electrically connected together in an axial direction. Further, the atomizer 100 and the power supply device 200 may be detachably connected together by magnetic connection, screw connection, snap connection, or the like. It will be appreciated that in other embodiments, the atomizer 100 and the power supply means 200 may be connected together in a non-detachable manner. The cross-sectional shape of the atomizer 100 and/or the power supply 200 is not limited to an elliptical shape, and may have a circular shape, a racetrack shape, or a rectangular shape.

As shown in fig. 3-5, the atomizer 100 may include a housing 10, a base 20, a heat generating base 30, and an atomizing core 40. Wherein, the base 20, the heating seat 30 and the atomizing core 40 are all accommodated in the housing 10, and the atomizing core 40 is accommodated between the base 20 and the heating seat 30.

The housing 10 is formed with a liquid storage chamber 110, an air inlet channel 210, an atomizing chamber 240 and an air outlet channel 120, wherein the liquid storage chamber 110 is used for accommodating an atomized liquid matrix, and the liquid storage chamber 110 is isolated from the air inlet channel 210, the atomizing chamber 240 and the air outlet channel 120. The nebulizing chamber 240 is for nebulizing a liquid matrix to generate an aerosol; the air inlet channel 210 is communicated with the atomization cavity 240 and is used for allowing external air flow to enter the atomization cavity 240; the gas outlet channel 120 communicates with the atomizing chamber 240 for outputting the aerosol generated in the atomizing chamber 240. In some embodiments, the air inlet channel 210, the atomizing chamber 240, and the air outlet channel 120 are sequentially connected from bottom to top in the longitudinal direction, and the axial directions of the air inlet channel 210, the atomizing chamber 240, and the air outlet channel 120 may be parallel to or form an angle with the axial direction of the atomizer 100. The upper end of the air outlet channel 120 is provided with an air outlet 121, when a user sucks at the air outlet 121, external air flow enters the atomization cavity 240 from the air inlet channel 210, and aerosol atomized in the atomization cavity 240 is carried out to the air outlet 121 through the air outlet channel 120 for the user to suck or absorb.

The housing 10 may be integrally formed by injection molding or the like, and may include a cylindrical housing 11 and a ventilation duct 12 disposed in the cylindrical housing 11 in a longitudinal direction. The cylindrical housing 11 may be substantially in an elliptical cylindrical shape with an opening at a lower end, and a cavity is defined by a sidewall of the cylindrical housing 11. The ventilation duct 12 may be integrally connected to the top wall of the cylindrical housing 11, and may be integrally connected to the inner wall surface of the cylindrical housing 11 on the short axis side. The vent pipe 12 divides the cavity in the cylindrical housing 11 into a reservoir 110 and an outlet channel 120. It will be appreciated that in other embodiments, the tubular housing 11 and the vent conduit 12 may be formed separately and then assembled.

The chamber wall surface of the atomizing chamber 240 includes an atomizing surface 241 and a side wall surface 242 provided opposite to the atomizing surface 241. The sidewall surface 242 may be parallel to the atomizing surface 241 or may be angled with respect to the atomizing surface 241. The atomizing face 241 is used to generate an aerosol, which is typically the side of the atomizing core 40 that is exposed to the atomizing chamber 240. The atomizing face 241 may be disposed in a vertical direction; alternatively, the atomizing face 241 may be inclined, i.e., the atomizing face 241 may be at an angle to the vertical, which may range from 0 ° to 85 ° in some embodiments. In this embodiment, the atomizing surface 241 and the sidewall surface 242 are both inclined, and the air inlet channel 210 and the air outlet channel 120 extend in the vertical direction, that is, the included angle between the atomizing surface 241 and the axis of the air inlet channel 210 and the axis of the air outlet channel 120 are also 0 ° to 85 °. The air flow only passes through one corner in the process of entering the atomizing cavity 240 from the air inlet channel 210 and entering the air outlet channel 120 from the atomizing cavity 240, and the corner is not a right angle of 90 degrees, but forms an included angle larger than 90 degrees, so that the deflection angles of the air flow in the process of flowing into and flowing out of the atomizing cavity 240 are smaller than 90 degrees, the air flow circulation is smoother, and the smoke loss is less.

The atomizing wick 40 may include a wick 41 in fluid communication with the reservoir 110 and a heat generator 42 in contact with at least the wick 41. The side of the liquid suction body 41 in contact with the heating body 42 forms an atomizing surface 241. In some embodiments, the liquid absorbing body 41 may be made of porous materials such as porous ceramics, liquid absorbing cotton, and the like, so that a plurality of micropores are formed in the interior of the liquid absorbing body 41 and have a certain porosity, and the liquid absorbing body 41 can absorb and buffer the liquid matrix through capillary action of the micropores. In the present embodiment, the liquid absorbing member 41 is a porous ceramic having a substantially rectangular plate shape. The liquid absorbing body 41 absorbs the liquid matrix from the liquid storage cavity 110 and transmits the liquid matrix to the heating body 42, and the heating body 42 heats and atomizes the liquid matrix absorbed by the liquid absorbing body 41 after being electrified.

The axis direction of the atomizer 100 is defined as the Z direction, the width direction of the atomizer 100 is the Y direction, the length direction of the atomizer 100 is the X direction, and the atomizing face 241 and the sidewall face 242 are disposed opposite to each other in the width direction (i.e., the Y direction). The chamber wall surface of the atomizing chamber 240 further includes a chamber bottom surface 243, and the upper end of the air inlet passage 210 penetrates the chamber bottom surface 243 to communicate with the atomizing chamber 240. In some embodiments, the air intake passage 210 may include at least three air intake portions 211, with an upper end of each air intake portion 211 extending through the chamber bottom surface 243 and communicating with the atomizing chamber 240. The at least three air inlet portions 211 are arranged side by side in the width direction, and the intervals between every two adjacent air inlet portions 211 in the width direction may be equal or unequal. Specifically, in the present embodiment, the at least three air intake portions 211 include a first air intake portion 2111, a second air intake portion 2112, and a third air intake portion 2113 that are disposed side by side in order in the width direction. It is understood that in other embodiments, the number of the air inlet portions 211 may be more than three.

The first air inlet portion 2111 is disposed near the side wall surface 242 so that the air flow entering from the first air inlet portion 2111 can form an air curtain against the side wall surface 242, isolate the aerosol sprayed from the atomizing surface 241 from the side wall surface 242, and reduce condensation of the aerosol sprayed on the side wall surface 242. In some embodiments, the distance between the centerline of the first air intake 2111 and the sidewall surface 242 may be 0.3mm to 2.0mm.

The second air inlet portion 2112 is located between the first air inlet portion 2111 and the third air inlet portion 2113, and the air flow entering from the second air inlet portion 2112 is mainly used to bring the aerosol atomized by the heating element 42 from the atomizing chamber 240 to the air outlet channel 120. In some embodiments, the distance between the centerline of the second air intake 2112 and the centerline of the third air intake 2113 may be 0.6mm to 1.5mm.

The third air intake portion 2113 is provided near the atomizing surface 241, and is provided for cooling the heating element 42, preventing carbon deposition caused by overheating of the heating element 42, and for providing the aerosol with an initial acceleration in the Z direction, which plays a key role in reducing the remaining aerosol. In some embodiments, the distance between the center line of the third air intake portion 2113 and the lower edge of the heating element 42 may be 0 to 1.0mm.

Each of the air intake portions 211 includes at least one air intake hole 2110, and the cross-sectional shape of each air intake hole 2110 may be various regular or irregular shapes such as circular, elliptical, square, etc., the number of air intake holes 2110 of each air intake portion 211 may be the same or different, and the cross-sectional dimensions (e.g., diameter, length, width, etc.) of the air intake holes 2110 of each air intake portion 211 may be the same or different. For example, each of the air intake portions 211 includes at least two air intake holes 2110, and the at least two air intake holes 2110 may be uniformly or non-uniformly spaced along the length direction, and the arrangement direction may extend in a straight line or a curved line. For another example, each of the air intake portions 211 includes only one air intake hole 2110, and the one air intake hole 2110 may extend in a straight line or a curved line in a length direction. For another example, each of the first and third intake portions 2111 and 2113 includes at least two intake holes 2110, the at least two intake holes 2110 being arranged at uniform or non-uniform intervals along the length direction, and the arrangement direction may be linear or curved; the second intake portion 2112 includes only one intake hole 2110, and the one intake hole 2110 may extend in a straight line or a curved line in a length direction.

Specifically, in the present embodiment, the intervals between every two adjacent air inlet portions 211 in the width direction are equal, each air inlet portion 211 includes three air inlet holes 2110 uniformly spaced along a straight line, the cross-sectional shape of each air inlet hole 2110 is circular, the apertures of the air inlet holes 2110 of each air inlet portion 211 are the same, and a certain distance is provided between the edge of the air outlet at the upper end of the air inlet hole 2110 of each air inlet portion 211 and the periphery of the cavity bottom surface 243.

The design of the intake passage 210 can be referred to as follows:

basic idea one: reducing the speed of intake

By default the individual suction pressure is substantially fixed, the suction mass flow is fixed, i.e. the mass flow m=ρ AVa is fixed, where ρ is the air density, a is the intake area, va is the intake speed. Under the existing condition, the air density rho is unchanged, and then the air inlet area A and the air inlet speed Va are inversely proportional. The intake speed Va decreases by increasing the intake area a in accordance with mass conservation. Typically, the inlet velocity Va decreases, facilitating smoke mixing (high aerosol content per volume of air) and droplet fusion. Therefore, the total intake area of the intake passage 210 is not easily large. However, if the intake velocity is too low, the predetermined effect cannot be achieved, for example, the barrier effect of the air curtain formed by the intake air flow on the side wall surface 242 is poor, or the intake air flow cannot sufficiently take out the aerosol from the atomizing chamber 240. In some embodiments, the total air intake area of the air intake channel 210 is not more than 3.0mm ², and the air intake speed Va is not less than 6m/s, so that better mixing of the flue gas can be ensured. The calculation basis is as follows: the suction airflow V0 was about 55 ml/3 s ≡18 ml/s=18000 mm ³/s, and the airflow rate of the intake passage 210 was 18000mm ³/s÷3.0mm² =6 m/s, based on the measurement, which gave an airflow rate of 55ml at a suction of generally 3 seconds.

However, too small a total intake area of the intake passage 210 may cause too great an airflow resistance at the time of suction, and the suction experience is poor. In some embodiments, the total intake area of the intake passage 210 is not less than 0.5mm ², so that the suction resistance is less than 1.5Kpa to ensure good suction comfort. When the total intake area of the intake passage 210 is not smaller than 0.5mm ², the intake speed Va is not more than 36m/s, which is obtainable according to the above-described calculation.

Basic idea two: reducing jet velocity

The width of the atomizing chamber 240 is increased, the distance between the atomizing face 241 and the side wall face 242 is increased, and the jet velocity Vs of the aerosol ejected from the atomizing face 241 is decreased due to the existence of the buffering resistance. The reduced jet velocity Vs is beneficial to air influencing the flow direction of the aerosol, which is not easy to spray on the side wall surface 242, and is easy for smoke mixing (high smoke content in unit volume of air) and droplet fusion.

The basic idea is three: minimizing vortex flow within the atomizing chamber 240

Minimizing the intensity of the vortex in the atomizing chamber 240 and in other areas helps to reduce smoke losses. By increasing the air inlet area ratio (i.e. the ratio of the total air inlet area of the air inlet channel 210 to the cross-sectional area of the atomization surface 241 projected on the atomization cavity 240) and optimizing the positions of the air inlets 2110, the vortex caused by friction of local air flow to the smoke flow can be neutralized, so that the strength of the vortex is reduced, and the smooth carrying-out of the mixed smoke is ensured.

The base 20 is provided at the lower end opening of the cylindrical housing 11 to cover the opening. In some embodiments, the base 20 may include a base 21 and an extension 22 extending upward from a top surface of the base 21. The extension 22 includes a first sidewall 221 and two second sidewalls 222 respectively located at two opposite sides of the first sidewall 221 along the length direction. The two second side walls 222 may be used to press against and fix the liquid absorbent 41. The first side wall 221 is disposed opposite to and spaced apart from the side of the liquid absorbing body 41 on which the heating element 42 is disposed, the inner wall surface of the first side wall 221 forms a side wall surface 242 of the atomizing chamber 240, and the first side wall 221, the two second side walls 222, and the liquid absorbing body 41 together enclose the atomizing chamber 240.

The base 21 is embedded in the lower opening of the cylindrical shell 11, and the outer peripheral surface of the base 21 can be in sealing fit with the inner peripheral surface of the cylindrical shell 11 so as to prevent liquid leakage. The intake passage 210 may be formed on the base 21 in the longitudinal direction, and may be formed by a top surface of the base 21 extending downward in the longitudinal direction. That is, a portion of the top surface of the base 21 forms a cavity bottom surface 243 of the atomizing cavity 240.

In some embodiments, the bottom surface of the base 21 may further extend upward in the longitudinal direction to form at least one introduction passage 212, and an upper end of the at least one introduction passage 212 communicates with a lower end of the intake passage 210. In the present embodiment, the introduction passage 212 has one and is located at the middle of the base 21, and the intake area of the introduction passage 212 is larger than the total intake area of the intake passage 210. It will be appreciated that in other embodiments, there may be multiple lead-in channels 212.

The heating seat 30 is disposed above the base 20, and the heating seat 30 is matched with the base 20 to fix the atomizing core 40. In some embodiments, the heat generating base 30 and the base 20 may be fastened together by a snap-fit connection. The heat generating seat 30 may include a body portion 31 and a socket portion 32 extending upward from a top surface of the body portion 31. The lower end surface of the main body 31 may abut against the upper end surface of the base 21. The main body 31 has a receiving cavity 310 formed by recessing inward at one side in the circumferential direction, and the atomizing core 40 is at least partially received in the receiving cavity 310. The top surface of the heating base 30 is also concavely formed with a lower liquid channel 320 communicating with the receiving cavity 310, so that the atomizing core 40 can communicate with the liquid storage cavity 110.

In some embodiments, the atomizer 100 may further comprise a sealing sleeve 50 and an insulating pad 70. The sealing sleeve 50 may be sleeved on the sleeve joint portion 32, and may be disposed between the cavity wall surface of the liquid storage cavity 110 and the outer wall surface of the sleeve joint portion 32 in a sealing manner. In some embodiments, the sealing sleeve 50 may be made of an elastic material such as silica gel, which is beneficial to improve the sealing effect of the liquid storage cavity 110. The sealing sleeve 50 is ring-shaped, and a lower liquid port 51 is formed longitudinally therethrough, and the liquid storage chamber 110 communicates with the lower liquid channel 320 via the lower liquid port 51.

The insulating pad 70 may be made of an insulating elastic high temperature resistant material such as silica gel, and the atomizing core 40 abuts against the heating seat 30 through the insulating pad 70. The insulating mat 70 prevents leakage on the one hand and protects the atomizing core 40 from crushing during installation on the other hand. The insulating pad 70 may have a frame shape, in which a liquid inlet 71 is formed to communicate the liquid discharging channel 320 with the liquid sucking body 41. The outer shape of the insulating pad 70 may be the same as or similar to the shape of the liquid absorbing body 41, and in this embodiment, the liquid absorbing body 41 has a rectangular parallelepiped shape, and the insulating pad 70 has a rectangular frame shape.

In some embodiments, the atomizer 100 may further include a liquid guide 80, where the liquid guide 80 is disposed on a side of the liquid suction body 41 in communication with the lower liquid passage 320, and is capable of rapidly and uniformly conducting the liquid matrix from the lower liquid passage 320 to the liquid suction body 41. The liquid guide 80 may be made of porous materials such as porous ceramics and liquid guide cotton, and may be accommodated in the accommodating cavity 310 and may have a rectangular plate shape.

In some embodiments, the atomizer 100 may further include at least two electrode assemblies 60, each electrode assembly 60 including a conducting portion 61 and an external connection portion 62, the conducting portion 61 being electrically connected to the heating element 42, the external connection portion 62 being used for external power supply. The electrode assembly 60 may include conductive sheets and/or conductive posts, which may or may not be elastic. The conducting portion 61 of the electrode assembly 60 abuts against the heat generating body 42 and is in contact conduction with the heat generating body 42, thereby abutting the atomizing core 40 against the heat generating seat 30 via the insulating pad 70. Since the insulating pad 70 has a certain elasticity, it is possible to absorb the pressing stress, prevent the atomizing core 40 from being broken, and secure the reliability of the electrical connection between the electrode assembly 60 and the heating body 42. It will be appreciated that in other embodiments, the insulating pad 70 may not be provided, and the electrode assembly 60 may be resilient to resiliently abut the atomizing core 40.

Specifically, in the present embodiment, the electrode assembly 60 includes metal conductive sheets, and the conducting portion 61 and the external portion 62 are respectively located at the upper and lower ends of the metal conductive sheets. The conducting portion 61 may be substantially spoon-shaped, and the bottom surface of the conducting portion 61 may be an arc surface, so that the conducting portion may be better contacted with the heating element 42, and scratch damage to the heating element 42 may be avoided. The lower end of the electrode assembly 60 is embedded in the base 21 such that the external connection part 62 is at least partially exposed to the bottom surface of the base 21, so as to be conveniently abutted and conducted with the electrode column in the power supply device 200.

The electrode assembly 60 and the base 20 may be coupled together by injection molding; or the electrode assembly 60 and the base 20 may be fixed to each other by other removable or non-removable means.

Fig. 6 shows a base 20 in a first alternative of the present invention, which is mainly different from the first embodiment described above in that in the present embodiment, the first, second and third air intake portions 2111, 2112 and 2113 include only one air intake hole 2110, and the cross-sectional shape of the one air intake hole 2110 is an elongated shape extending along a straight line; in addition, the cross sections of the air intake holes 2110 of the first, second and third air intake portions 2111, 2112 and 2113 all have the same length and width, and the first, second and third air intake portions 2111, 2112 and 2113 are arranged at equal intervals. It will be appreciated that, in other embodiments, the first, second and third air intake portions 2111, 2112 and 2113 may also be arranged at unequal intervals, and/or the air intake areas of the first, second and third air intake portions 2111, 2112 and 2113 may also be unequal.

Fig. 7 shows a base 20 in a second alternative of the present invention, which is mainly different from the first embodiment described above in that in the present embodiment, the first, second and third air intake portions 2111, 2112 and 2113 include only one air intake hole 2110, and the cross-sectional shape of the one air intake hole 2110 is an elongated shape extending along an arc; in addition, the intake areas of the intake holes 2110 of the first, second, and third intake portions 2111, 2112, and 2113 are the same, and the first, second, and third intake portions 2111, 2112, and 2113 are arranged at equal intervals. It will be appreciated that, in other embodiments, the first, second and third air intake portions 2111, 2112 and 2113 may also be arranged at unequal intervals, and/or the air intake areas of the first, second and third air intake portions 2111, 2112 and 2113 may also be unequal.

Fig. 8 shows an atomizer 100 according to a second embodiment of the invention, which differs from the first embodiment described above mainly in that in this embodiment the atomizing face 241 is arranged in the vertical direction, i.e. the angles between the atomizing face 241 and the axis of the inlet channel 210 and the axis of the outlet channel 120, respectively, are each 0 °. The structure of the air intake passage 210 in this embodiment may refer to the related description in any of the above embodiments, and will not be described here again.

In addition, this second embodiment is different from the first embodiment in that the ventilation duct 12 in this embodiment is tubular and may be integrally formed by extending downward from the top wall of the cylindrical housing 11, and the inner wall surface of the ventilation duct 12 defines the air outlet channel 120. An annular space is formed between the outer wall surface of the air duct 12 and the inner wall surface of the cylindrical housing 11, and the annular space defines the liquid storage chamber 110. In addition, in the present embodiment, the electrode assembly 60 includes a conductive post, which may be disposed along a lateral direction, one end of the conductive post may be inserted and fixed on the base 20, and the other end of the conductive post is pressed against the atomizing core 40.

It will be appreciated that the above technical features may be used in any combination without limitation.

The foregoing examples merely illustrate specific embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention; it should be noted that, for a person skilled in the art, the above technical features can be freely combined, and several variations and modifications can be made without departing from the scope of the invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. An atomizer characterized by comprising an atomizing chamber (240) and an air inlet channel (210) in communication with the atomizing chamber (240); the atomizing chamber (240) comprises an atomizing surface (241) for generating aerosol and a side wall surface (242) which is opposite to the atomizing surface (241), the air inlet channel (210) comprises a first air inlet portion (2111), a second air inlet portion (2112) and a third air inlet portion (2113) which are sequentially arranged side by side, the first air inlet portion (2111) is close to the side wall surface (242), and the third air inlet portion (2113) is close to the atomizing surface (241).

2. The atomizer according to claim 1, characterized in that the angle between the axis of the air inlet channel (210) and the atomizing face (241) is 0 ° to 85 °.

3. The atomizer according to claim 1, wherein the first air inlet portion (2111), the second air inlet portion (2112) and the third air inlet portion (2113) each comprise at least two air inlet holes (2110) arranged at intervals.

4. A nebulizer as claimed in claim 3, wherein the at least two air inlet holes (2110) are arranged at intervals in a straight line or a curved line.

5. The atomizer according to claim 1, wherein the first air inlet portion (2111), the second air inlet portion (2112) and the third air inlet portion (2113) each comprise one air inlet hole (2110), the cross-sectional shape of the one air inlet hole (2110) being a bar.

6. The atomizer according to claim 5, wherein the cross-sectional shape of said one inlet aperture (2110) is a bar extending along a straight line or a curve.

7. The nebulizer of claim 1, wherein the extension directions of the first air intake portion (2111), the second air intake portion (2112), and the third air intake portion (2113) are parallel.

8. The nebulizer of claim 1, wherein a distance between a center line of the first air intake portion (2111) and the side wall surface (242) is 0.3mm to 2.0mm.

9. The nebulizer of claim 1, wherein a distance between a center line of the second air intake portion (2112) and a center line of the third air intake portion (2113) is 0.6mm to 1.5mm.

10. The atomizer according to claim 1, characterized in that the total inlet area of the inlet channels (210) is 0.5mm ²～3.0mm².

11. The atomizer according to claim 1, wherein the atomizing face (241) and the side wall face (242) are parallel or form an angle.

12. The nebulizer of claim 1, further comprising an air outlet channel (120) in communication with the nebulization chamber (240), an axis of the air outlet channel (120) being parallel or at an angle to the nebulization face (241).

13. The nebulizer of claim 12, wherein an axis of the outlet channel (120) is parallel to an axis of the inlet channel (210).

14. The atomizer according to any one of claims 1 to 13, further comprising a liquid absorbing body (41) and a heat generating body (42) at least in contact with the liquid absorbing body (41), wherein a side surface of the liquid absorbing body (41) in contact with the heat generating body (42) forms the atomizing surface (241).

15. The atomizer according to claim 14, wherein a distance between a center line of the third air intake portion (2113) and an edge of the heating element (42) adjacent to the third air intake portion (2113) is 0 to 1.0mm.

16. The nebulizer of claim 14, comprising a housing (10) and a base (20) at least partially housed within the housing (10), the nebulization chamber (240) being located within the housing (10), the air intake channel (210) being formed on the base (20).

17. The nebulizer of claim 16, further comprising a heat generating seat (30) housed within the housing (10), the liquid absorbing body (41) being housed between the base (20) and the heat generating seat (30).

18. An electronic atomising device comprising an atomiser according to any one of claims 1 to 17.