CN217564944U - Atomizer - Google Patents

Abstract

The utility model relates to an atomizer, which comprises an oil cup and an atomizing component, wherein the atomizing component is arranged in the lower end of the oil cup and forms a liquid storage cavity together with the oil cup, and an atomizing cavity is formed in the atomizing component; the atomizing cavity is provided with a flow guide surface opposite to the oil guide body, the projection of the flow guide surface on the atomizing surface is positioned in the heating area of the heating body or intersected with the heating area of the heating body along the direction vertical to the atomizing surface, and the flow guide surface is a bending surface or an arc surface with the middle part protruding towards the direction of the oil guide body. The side surface of the atomizer, which is opposite to the heating component, in the atomizing cavity is designed to be a convex bending surface or an arc surface, so that after air flow enters the atomizing cavity from the air inlet channel, the air flow is blown to the middle high-temperature position of the heating element under the action of the flow guide surface, and aerosol generated on the surface of the heating element is better taken away; and the air current velocity of flow reaches the biggest when the high temperature position in middle part of the heat-generating body, is favorable to taking away the produced aerosol of heat-generating body with faster speed, lets atomization efficiency maximize.

Description

Atomizer

Technical Field

The utility model belongs to the technical field of electronic atomization, especially, relate to an atomizer.

Background

The principle of the electronic atomizer is that an internal heating body is utilized to heat and atomize atomized liquid absorbed by an oil guide body, and then aerosol is pumped out from an air outlet inside the atomizer through suction.

At present, the air inlet mode of the electronic atomizer is that air is introduced from the bottom of the atomizer, and atomized air is discharged from a hole in the top of the atomizer. When the atomizer works, the temperature of the heating layer of the atomizing core rises instantly to atomize oil. In order to maximize the atomization efficiency, the atomization core (which may be a ceramic core, or a cotton core or other heating element) is generally laid flat, and the heating layer on the atomization core is perpendicular to the air inlet hole at the bottom. Outside gas that gets into from the inlet port directly blows on the layer that generates heat, blows away the atomizing gas on the layer that generates heat rapidly, improves atomization efficiency, makes the atomizing volume maximize.

However, if the structure of an atomizer is limited by the size, the shape of the outer tube, or for better functional taste, or for better assembly (such as automatic assembly), the atomizing core needs to be erected, and the heat-generating layer on the atomizing core is not directly opposite to the air inlet at the bottom of the atomizer, but is at an angle or parallel to the air inlet. At the moment, external air entering from the bottom air inlet cannot be blown vertically onto the heating layer, air flow blows over the heating layer from the side face, the air flow direction is parallel to the arrangement direction of the heating layer, and the atomization efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve not enough among the prior art to a certain extent at least, provide an atomizer.

In order to achieve the purpose, the utility model provides an atomizer, which comprises an oil cup and an atomizing component, wherein the atomizing component is arranged in the lower end of the oil cup and forms a liquid storage cavity together with the oil cup, the atomizing component comprises a heating component, and the heating component comprises an oil guide body which is vertically or obliquely arranged and a heating body which is attached to the atomizing surface of the oil guide body; an atomization cavity connected with the atomization surface is formed in the atomization assembly, and an air inlet channel and an air outlet hole communicated with the atomization cavity are formed in the bottom end and the top end of the atomization assembly respectively;

the atomizing chamber have with lead the water conservancy diversion face that the oil body is relative, along perpendicular the direction of atomizing face, the water conservancy diversion face is in projection on the atomizing face is located in the district that generates heat of heat-generating body or with the district that generates heat of heat-generating body is crossing, just the water conservancy diversion face for the middle part to lead convex face of buckling or the arcwall face of buckling of oil body direction, so that the cross-sectional area of atomizing chamber by its middle part position respectively to inlet channel with the venthole direction expands gradually and extends.

Optionally, the flow guide surface includes a first plane/a first arc surface and a second plane/a second arc surface which are connected to each other in the up-down direction, and a connection portion of the first plane/the first arc surface and the second plane/the second arc surface is directly opposite to the center of the heating element.

Optionally, an accommodating space is formed inside the atomizing assembly, the heating assembly is arranged on one side of the accommodating space, the atomizing assembly further comprises an air passage piece installed in the accommodating space, and the atomizing cavity is formed between the air passage piece and the oil guide body.

Optionally, the heating body is of a sheet structure and comprises two conductive parts and a heating part serially connected between the two conductive parts, the air channel part protrudes towards the oil guide body to form two abutting parts, and the two abutting parts respectively press and attach the two conductive parts to the atomization surface.

Optionally, the flow guiding surface is connected between the two abutting portions, and a heating area of the heating body is within the range of the heating portion; the projection of the flow guide surface on the atomization surface is positioned in the range of the heating part or is intersected with the range of the heating part.

Optionally, the opposite inner side surfaces of the two abutting parts are in smooth transition with the flow guiding surface respectively.

Optionally, an air passing hole is formed between the air inlet channel and the atomizing cavity and communicated with the atomizing cavity, and the central axis of the air passing hole is intersected with the flow guide surface.

Optionally, the atomizing assembly further comprises a top assembly, the top assembly comprises a support and a sealing member, the support is connected with the inner wall of the oil cup in a sealing manner through the sealing member, and one side of the support is recessed to form the accommodating space.

Optionally, the sealing member cover is established the top of support, and the feed liquor is led to the groove has been seted up to its lateral wall, the feed liquor lead to the groove with the inner wall of oil cup forms jointly with the inlet channel of stock solution chamber intercommunication, set up on the lateral wall of support with the inlet of inlet channel intercommunication, the relative one side of oil guide body the atomizing face be with the suction level that the inlet meets.

Optionally, the atomizing assembly further includes a bottom assembly, the bottom assembly includes a base fixed to the bottom end of the support and two electrodes penetrating through the base from bottom to top, and upper ends of the two electrodes extend into the accommodating space and press the heating element tightly against the oil guide body.

Optionally, the bottom assembly further comprises a separator stacked on the top end of the base and located between the base and the support, the separator is of a flat plate structure and forms an air inlet channel between the separator and the base, the separator is provided with air passing holes respectively communicated with the air inlet channel and the atomizing cavity, and the base is provided with an air inlet communicated with the air inlet channel.

The side surface of the atomizer, which is opposite to the heating component, in the atomizing cavity is designed to be a convex bending surface or an arc surface, so that after air flow enters the atomizing cavity from the air inlet channel, the air flow is blown to the middle high-temperature position of the heating element under the action of the flow guide surface, and aerosol generated on the surface of the heating element is better taken away; and the flow velocity of the air current reaches the maximum when passing through the high-temperature position in the middle of the heating body, so that the aerosol generated by the heating body can be taken away at a higher speed, and the atomization efficiency is maximized.

Drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a sectional view of an embodiment of the atomizer of the present invention along the long axis;

fig. 2 is a sectional view of an embodiment of the atomizer of the present invention along the short axis;

FIG. 3 is a cross-sectional view of the atomizing assembly of the present invention along the axis of the air vent;

FIG. 4 is a schematic view of the heating element of the present invention welded to two electrodes;

FIG. 5 is a schematic view of the assembly of the oil guide body and the bracket of the present invention;

FIG. 6 is a schematic view of the bottom assembly of the present invention mounted to a bracket;

fig. 7 is a schematic view of the overall structure of the atomizing assembly of the present invention;

fig. 8 is a schematic view of the overall structure of the atomizing assembly of the present invention;

fig. 9 is a perspective partial sectional view of the atomizer of the present invention;

description of main elements:

100. an atomizer; 200. an atomizing assembly;

10. an oil cup; 11. an air suction port; 12. an air duct; 13. a liquid storage cavity;

20. a top assembly;

21. a support; 211. an accommodating space; 212. a liquid inlet; 213. an air outlet;

22. a seal member; 222. a liquid inlet channel;

23. an air duct member; 231. an atomizing chamber; 232. a flow guide surface; 233. a butting part;

30. a heat generating component; 31. an oil guide body; 32. a heating element; 321. a conductive portion; 322. a heat generating portion;

40. a bottom assembly;

41. a base; 412. an air inlet; 415. an intake passage;

42. an electrode; 43. a separator; 431. and (5) air passing holes.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and are intended to be used for explaining the present invention, but should not be construed as limiting the present invention, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, 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 to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-3, an embodiment of the present invention provides an atomizer 100, the atomizer 100 may be combined with a battery rod to form an electronic atomization device, a power supply and a control circuit are disposed in the battery rod, and the control circuit is used for controlling the power supply to supply power to the atomizer 100.

The atomizer 100 comprises an oil cup 10 and an atomizing assembly 200, wherein the atomizing assembly 200 is arranged in the lower end of the oil cup 10 and forms a liquid storage cavity 13 together with the oil cup 10; the lower end of the oil cup 10 is open, and the upper end is provided with an air suction port 11 for suction of a user. An air duct 12 extending into the oil cup 10 is formed along the edge of the air suction port 11 on the inner wall of one end of the oil cup 10 where the air suction port 11 is arranged, and the inside of the air duct 12 is communicated with the air suction port 11. A liquid storage cavity 13 is formed between the air duct 12 and the inner wall of the oil cup 10 to store atomized liquid. In this embodiment, the air duct 12 and the oil cup 10 are integrally formed.

The atomization assembly 200 comprises a heating assembly 30, wherein the heating assembly 30 comprises an oil guide body 31 arranged vertically or obliquely and a heating body 32 attached to the atomization surface of the oil guide body 31; an atomization cavity 231 connected with an atomization surface is formed in the atomization assembly 200, an air inlet channel 415 and an air outlet hole 213 which are communicated with the atomization cavity 231 are respectively arranged at the bottom end and the top end of the atomization assembly 200, and the air outlet hole 213 is communicated with the air guide tube 12; the atomizing chamber 231 has a flow guide surface 232 opposite to the oil guide body 31, and along a direction perpendicular to the atomizing surface, a projection of the flow guide surface 232 on the atomizing surface is located within the heat generating area of the heating body 32 or intersects with the heat generating area of the heating body 32.

The heating element 32 is a metal sheet body formed by etching conductive metal, for example, it can be made of nickel-chromium, iron-chromium-aluminum, stainless steel by etching or laser cutting, and it includes two conductive parts 321 and a heating part 322 connected in series between the two conductive parts 321, the resistance of the conductive part 321 is far smaller than the heating part 322, so that when the heating element 32 is electrified to generate heat, the conductive part 321 only generates a small amount of heat, so that the heat is concentrated in the heating part 322 area, thereby ensuring the atomization effect. The shape of the heat generating portion 322 in this embodiment is not particularly limited, and may be, for example, a mesh shape, a stripe shape, an S shape, a zigzag shape, a wave shape, a zigzag shape, a spiral shape, a circular shape, or a rectangular shape, as long as planar heat generation can be achieved.

It should be noted that the heating region of the heating element 32 is a heating region range, and the intersection of the projection of the guiding surface 232 on the atomizing surface and the heating region of the heating element 32 means: the upper end and/or the lower end of the projection of the flow guiding surface 232 on the atomization surface extend out of the heating area of the heating body 32, so that the flow guiding surface 232 is used for guiding the airflow to pass through the heating area 322, and the atomization effect of the atomizer is improved.

In the present embodiment, the flow guide surface 232 is a curved surface or an arc-shaped surface with a middle portion protruding toward the oil guide body 31, so that the cross-sectional area of the atomizing chamber 231 gradually expands and extends from the middle portion thereof toward the air inlet channel 415 and the air outlet hole 213, respectively; thus, when a user sucks, the airflow enters the atomizing cavity 231 from the air inlet channel 415 and is blown to the middle high-temperature position of the heating element 32 under the action of the flow guide surface 232, so that aerosol generated on the surface of the heating element 32 is better taken away; and the flow velocity of the air current reaches the maximum when passing through the high temperature position in the middle of the heating element 32, which is beneficial to taking away the aerosol generated by the heating element 32 at a higher speed, and maximizing the atomization efficiency.

Preferably, the flow guiding surface 232 is a bent surface, and includes a first plane inclined toward the air inlet channel 415 and a second plane inclined toward the air outlet hole 213, a joint of the first plane and the second plane is directly opposite to the center of the heat generating portion 322, an included angle between the first plane and the second plane is a right angle or an obtuse angle, an included angle between the first plane and the atomization surface of the oil guiding body 31 is 30-90 degrees, an included angle between the second plane and the atomization surface of the oil guiding body 31 is 30-90 degrees, and specific angles can be comprehensively adjusted according to other factors such as air intake amount and heating power. In this embodiment, the angle between the first plane and the atomization surface of the oil guide 31 is 45 °, the angle between the second plane and the atomization surface of the oil guide 31 is 45 °, and the angle between the first plane and the second plane is 90 °.

In order to make the airflow more smooth when passing through the atomizing chamber 231, the arc between the first plane and the second plane is excessive; and in order to ensure that the position of the joint of the first plane and the second plane has enough air flow speed, the effect of large atomization amount can be realizedThe cross-sectional area of the atomizing chamber 231 at the position of the connection is 2.5 to 7.0mm ² 。

Certainly, when the flow guiding surface 232 is an arc surface, the flow guiding surface may also be an arc surface, and includes a first arc surface and a second arc surface connected to each other in the vertical direction, the angle and the orientation between the first arc surface and the second arc surface are substantially similar to the first plane and the second plane, and the connection between the first arc surface and the second arc surface also faces the center of the heat generating portion 322.

The structure of the atomizing assembly 200 of the present embodiment will be further described in detail with reference to fig. 3 to 9, wherein the atomizing assembly 200 includes a top assembly 20, a heat generating assembly 30 and a bottom assembly 40. It should be understood that the atomizer 100 according to the embodiment of the present invention is not limited to the structure of the atomizing assembly 200 shown in fig. 5 to 9.

The top component 20 comprises a sealing element 22, a bracket 21 and an air channel element 23, wherein the sealing element 22 is sleeved at the top end of the bracket 21 and is in sealing connection with the inner wall of the oil cup 10; one side of the bracket 21 is concavely provided with an accommodating space 211 (shown by combining fig. 6 and 7), the oil guide body 31 is in a flat plate shape, the surface of the oil guide body, which is attached to one side of the accommodating space 211, is a liquid absorption surface, the other side surface opposite to the liquid absorption surface is an atomization surface, the atomization amount of the oil absorption cotton is large, the suction experience feeling is good, and the fragrance reduction degree of the atomized liquid is high. In the embodiment, the oil guide body 31 forms an angle of 90 ° with the bottom surface of the atomizing assembly 200, and in practical application, the oil guide body 31 may be disposed in an inclined manner, and preferably, the oil guide body 31 forms an included angle with the bottom surface of the atomizing assembly 200 in a range of 60 to 120 °. It should be appreciated that the bottom surface of the atomizing assembly 200 described above is a plane that is perpendicular to the central axis of the atomizer 100.

The heating element 32 is a metal sheet body formed by etching conductive metal, for example, it can be made by etching or laser cutting nickel-chromium, iron-chromium-aluminum, stainless steel, and it includes two conductive parts 321 and a heating part 322 connected in series between the two conductive parts 321, the resistance of the conductive part 321 is far smaller than that of the heating part 322, so that when the heating element 32 is energized to generate heat, the conductive part 321 only generates a small amount of heat, so that the heat is concentrated in the area of the heating part 322, and the best atomization effect can be ensured by matching with the flow guiding surface 232 of the atomization cavity 231. The shape of the heat generating portion 322 in this embodiment is not particularly limited, and may be, for example, a mesh shape, a stripe shape, an S shape, a zigzag shape, a wave shape, a zigzag shape, a spiral shape, a circular shape, or a rectangular shape, as long as planar heat generation can be achieved.

The air duct member 23 is preferably made of a silicone material, and is sealed and installed in the accommodating space 211, two abutting portions 233 are further formed on one side of the air duct member 23 facing the heating element 30 in a protruding manner, the two abutting portions 233 abut against the oil guide body 31 and are respectively pressed on the conductive portions 321 at two ends of the heating element 32, so that the position of the air duct member 23 is limited by the abutting action of the abutting portions 233 on the oil guide body 31, and the automatic assembly is facilitated.

Thus, the air duct member 23 and the oil guide body 31 together form an atomization chamber 231, the guide surface 232 is connected between the two abutting portions 233, and opposite inner side surfaces of the two abutting portions 233 are in smooth transition with the guide surface 232, so that the airflow flows more smoothly in the atomization chamber 231. The material of the air duct member 24 may also be plastic, hardware, or other materials, and the specific material may be selected according to actual situations, which is not limited in this embodiment.

The bottom assembly 40 comprises a base 41 fixed at the bottom end of the bracket 21 and two electrodes 42 penetrating the base 41 from bottom to top, the upper ends of the two electrodes 42 extend into the accommodating space 211, so that the heating element 32 is clamped between the two electrodes 42 and the oil guide body 31 along the horizontal direction, and the conductive parts 321 at the two ends of the heating element 32 are respectively electrically connected with the two electrodes 42; the two electrodes 42 are respectively located at the opposite outer sides of the abutting portion 233, so that the electrodes 42 are located outside the atomizing chamber 231, and the generated aerosol is prevented from forming condensate on the electrodes 42. After the gas duct member 23 is assembled, the two electrodes 42 are also pressed so as to be in close contact with the two conductive portions 321 of the heating element 32, respectively, to achieve electrical connection.

Further, the two conductive portions 321 can be welded or riveted to the same side of the two electrodes 42, and during assembly, the oil guide body 31 can be installed in the accommodating space 211, and then the bottom assembly 40 with the heating body 32 fixed thereon can be fastened, installed and fixed on the bracket 21 along the horizontal direction, so that the heating body 32 is pressed on the atomization surface of the oil guide body 31, as shown in fig. 9; then the air channel piece 23 is plugged and installed in the accommodating space 211, so that the atomization assembly 200 is formed integrally; finally, the atomization assembly 200 is inserted and mounted into the open end 14 of the oil cup 10 to complete the assembly of the entire atomizer 100. By the structure, all parts are assembled in a vertical or horizontal stacking mode, the heating body 32 is not required to be bent and wound, the problem that the manipulator is not easy to operate due to the fact that the oil guide body 31 and the heating body 32 are soft is solved, automatic and batch assembly can be achieved, production efficiency is improved, and cost is reduced.

The lateral wall of the sealing member 22 is provided with a liquid inlet through groove, the liquid inlet through groove and the inner wall of the oil cup 10 jointly form a liquid inlet channel 222, the upper end of the liquid inlet channel 222 is communicated with the liquid storage cavity 13, the other side of the support 21, which is opposite to the accommodating space 211, is provided with a liquid inlet 212, the liquid inlet 212 is communicated with the lower end of the liquid inlet channel 222 and penetrates through the accommodating space 211, the liquid suction surface of the oil guide body 31 covers the liquid inlet 212, so that atomized liquid in the liquid storage cavity 13 can be guided to the oil guide body 31 through the liquid inlet channel 222 and the liquid inlet 212, the absorbed atomized liquid is conducted to the atomization surface by the oil guide body 31 to be contacted with the heating body 32, the contacted atomized liquid is heated and atomized when the heating body 32 is electrified and heated, and aerosol capable of sucking food is generated in the atomization cavity 231.

Optionally, in this embodiment, a notch communicated with the liquid inlet 212 may be further formed on the side wall of the bracket 21 corresponding to the liquid inlet through slot of the sealing member 22, and an upper end of the notch extends out of the top surface of the bracket 21, so that the notch, the liquid inlet through slot and the inner wall of the oil cup 10 jointly form the liquid inlet channel 222.

Preferably, in order to ensure the liquid inlet speed to avoid the insufficient oil pouring speed of the oil guiding body 31 and make the heating element 32 burn and stick to the core, the width of the liquid inlet channel 222 is between 0.8 and 2mm, the length is between 2 and 8mm, and the cross-sectional area is 1.6 to 15mm ² In the meantime.

Furthermore, the bottom assembly 40 further comprises a partition 43 stacked on the top end of the base 41 and located between the base 41 and the bracket 21, an air inlet channel 415 is formed between the partition 43 and the base 41, the partition 43 is provided with an air passing hole 431 respectively communicated with the air inlet channel 415 and the atomizing chamber 231, and the bottom wall of the base 41 is provided with an air inlet hole 412 communicated with the air inlet channel 415; when a user sucks air towards the air suction opening 11, the external air firstly enters the air inlet channel 415 between the separating piece 43 and the base 41, then enters the atomizing cavity 231 through the air hole 431, is mixed with aerosol generated by heating and atomizing the heating element 32, and then is output through the air outlet hole 213, the air guide pipe 12 and the air suction opening 11 in sequence to be sucked by the user; this configuration facilitates the installation of the air inlet 412, so that the air inlet 412 can be installed at any position of the bottom of the base 41.

The central axis of the air passing hole 431 is parallel to the central axis of the atomizer 100 and intersects with the flow guide surface 232, and preferably, the air passing hole 431 is located at a position of the atomizing chamber 231 far away from the heating element 30; thus, when the external airflow enters the atomizing chamber 231 from the air inlet channel 415 through the air passing hole 431, the external airflow is blocked by the flow guide surface 232 and turns to be obliquely blown onto the heating element 32, so that the problem that the airflow entering the atomizing chamber 231 through the air passing hole 431 directly passes through the narrowest part of the atomizing chamber 231 to affect the atomizing efficiency is avoided.

Specifically, the partition 43 is a flat plate structure made of silica gel or rubber, and is hermetically sealed at the upper end of the base 41 to close the lower end of the atomization chamber 231, so that the atomization chamber 231 is communicated with the air inlet passage 415 only through the air hole 431; when the bottom assembly 40 is installed on the bracket 21 in a buckling manner along the horizontal direction, the separating element 43 is clamped between the bracket 21 and the base 41 from top to bottom, and the upper end and the lower end of the separating element 43 respectively and elastically abut against the bracket 21 and the base 41, so that the bracket 21 and the base 41 respectively receive the abutting acting force of the separating element 43 in the up-and-down direction to keep fixed connection with certain strength, the subsequent installation of the air channel element 23 and the whole assembly of the atomizing assembly 200 into the oil cup 10 can be facilitated, other fasteners are not needed to connect the fixing bracket 21 and the base 41, and the automatic assembly is easy to realize.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

Above is the description to the technical scheme that the utility model provides, to the technical staff in the field, according to the inventive idea, all have the change part on concrete implementation and application scope, to sum up, this description content should not be understood as the restriction of the utility model.

Claims (11)

1. An atomizer comprises an oil cup and an atomizing assembly, wherein the atomizing assembly is arranged in the lower end of the oil cup and forms a liquid storage cavity with the oil cup; an atomization cavity connected with the atomization surface is formed in the atomization assembly, and an air inlet channel and an air outlet hole communicated with the atomization cavity are formed in the bottom end and the top end of the atomization assembly respectively;

the atomizing chamber have with lead the water conservancy diversion face that the oil body is relative, along perpendicular the direction of atomizing face, the water conservancy diversion face is in projection on the atomizing face is located in the district that generates heat of heat-generating body or with the district that generates heat of heat-generating body is crossing, just the water conservancy diversion face for the middle part to lead convex face of buckling or the arcwall face of buckling of oil body direction, so that the cross-sectional area of atomizing chamber by its middle part position respectively to inlet channel with the venthole direction expands gradually and extends.

2. The atomizer according to claim 1, wherein the flow guide surface comprises a first plane/first arc surface and a second plane/second arc surface which are connected with each other in an up-down direction, and a joint of the first plane/first arc surface and the second plane/second arc surface is directly opposite to the center of the heating element.

3. The atomizer according to claim 1 or 2, wherein an accommodating space is formed inside the atomizing assembly, the heat generating assembly is disposed at one side of the accommodating space, the atomizing assembly further comprises an air channel member installed in the accommodating space, and the atomizing cavity is formed between the air channel member and the oil guide body.

4. The atomizer according to claim 3, wherein the heat generating body is a sheet structure, and comprises two conductive portions and a heat generating portion connected in series between the two conductive portions, the air channel member is formed with two abutting portions protruding toward the oil guiding body, and the two abutting portions respectively press and attach the two conductive portions to the atomizing surface.

5. The atomizer according to claim 4, wherein said flow guide surface is connected between two of said abutting portions, and a heat generating area of said heat generating body is within a range of said heat generating portion; the projection of the flow guide surface on the atomization surface is positioned in the range of the heating part or is intersected with the range of the heating part.

6. The atomizer according to claim 5, wherein opposite inner sides of the two abutting portions are in smooth transition with the flow guiding surface respectively.

7. The atomizer of claim 1, wherein a gas passing hole is arranged between the air inlet channel and the atomizing chamber, and the central axis of the gas passing hole intersects with the flow guide surface.

8. The atomizer of claim 3, wherein the atomizing assembly further comprises a top assembly, the top assembly comprises a support and a sealing member, the support is connected with the inner wall of the oil cup in a sealing manner through the sealing member, and one side of the support is recessed to form the accommodating space.

9. The atomizer according to claim 8, wherein the sealing member is fitted over the top end of the holder, and has a liquid inlet channel formed in a side wall thereof, the liquid inlet channel and an inner wall of the oil cup together form a liquid inlet channel communicated with the liquid storage chamber, the side wall of the holder has a liquid inlet communicated with the liquid inlet channel, and a liquid suction surface connected to the liquid inlet is formed on a side of the oil guide body opposite to the atomization surface.

10. The atomizer according to claim 8, wherein the atomizing assembly further comprises a bottom assembly, the bottom assembly comprises a base fixed to the bottom end of the support and two electrodes penetrating the base from bottom to top, and the upper ends of the two electrodes extend into the accommodating space and press the heating element against the oil guide body.

11. The atomizer as claimed in claim 10, wherein said bottom assembly further includes a partition member stacked on top of said base and located between said base and said support, said partition member is of a flat plate structure, and an air inlet channel is formed between said partition member and said base, said partition member is provided with air passing holes respectively communicating with said air inlet channel and said atomizing chamber, and said base is provided with an air inlet hole communicating with said air inlet channel.

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