CN218245637U - Electronic atomizer - Google Patents

Abstract

The application discloses an electronic atomizer which comprises a heating tube and a heat exchange core, wherein the heating tube is used for generating heat, and the heat exchange core is arranged in the heating tube and provides a heat exchange channel for airflow entering from the outside; cigarettes are arranged in the heating pipe, and the cigarettes and the heat exchange core are stacked; the top surface of the heat exchange core is abutted against one end of the cigarette, part of the outer wall of the heat exchange core is attached to the inner wall of the heating pipe, the other part of the outer wall of the heat exchange core is not attached to the inner wall of the heating pipe to form a first air inlet channel, a second air inlet channel is arranged in the heat exchange core, an air outlet hole is formed in the heat exchange core, and the air outlet hole is communicated with the first air inlet channel through the second air inlet channel; this application reduces energy loss through above design when the heat transfer area of increase air current.

Description

Electronic atomizer

Technical Field

The application relates to the technical field of electronics, especially, relate to an electronic atomizer.

Background

The non-combustible heating electronic atomizer mainly generates heat through a heating body by the working principle of low-temperature heating, and heats a cigarette to about 300 ℃, so that effective components such as nicotine in the cigarette are baked out, and harmful substances such as tar in a cigarette product are greatly reduced by conducting heat to the cigarette instead of directly burning the cigarette, so that the non-combustible heating electronic atomizer is loved by people.

Traditional circumferential heating non-combustible electronic atomizer, outside air current gets into the back from electronic atomizer's bottom adoption direct air inlet's mode, the heat-generating body of the bottom through the atomizer heats the air current, the hot gas flow after the heating directly continues to rise and gets into a cigarette bottom, the heating mode that admits air of through-type like this, air current heat transfer distance is short, therefore the heat transfer area of air current is just little, lead to the hot gas flow after the heating to descend gradually at the in-process temperature that rises easily, the temperature that reaches a cigarette is not enough, influence electronic atomizer's suction taste, and if the length through the heat-generating body of increase electronic atomizer bottom increases heat transfer area, can cause the energy unnecessary loss.

SUMMERY OF THE UTILITY MODEL

The purpose of this application is to provide an electronic atomizer that reduces energy loss while increasing the heat exchange area of the air stream.

The application discloses an electronic atomizer, which comprises a heating tube and a heat exchange core; the heating tube is used for generating heat, and the heat exchange core is arranged in the heating tube and provides a heat exchange channel for airflow entering from the outside; cigarettes are arranged in the heating pipe, and the cigarettes and the heat exchange core are stacked; the top surface of heat transfer core with the one end butt of cigarette, the partial outer wall of heat transfer core with the inner wall of heating tube pastes mutually, another partial outer wall with the inner wall of heating tube does not paste mutually and forms a first inlet channel, be equipped with the second inlet channel in the heat transfer core, the heat transfer core orientation the top surface of cigarette is equipped with the venthole, the venthole passes through the second inlet channel with first inlet channel is linked together.

Optionally, the heat exchange core comprises an upper heat exchange core and a lower heat exchange core, and the upper heat exchange core is sleeved in the lower heat exchange core; the air outlet is arranged on the upper heat exchange core, part of the outer wall of the lower heat exchange core is not attached to the inner wall of the heating pipe to form the first air inlet channel, part of the outer wall of the upper heat exchange core is not attached to the part of the inner wall of the lower heat exchange core to form the second air inlet channel, and the air outlet is communicated with the first air inlet channel through the second air inlet channel.

Optionally, the upper heat exchange core comprises a baffle and a fixed column, one end of the fixed column is fixedly connected with the bottom surface of the baffle far away from the cigarette, and the fixed column is sleeved in the lower heat exchange core; the baffle is provided with the air outlet hole; the fixing column is hollow to form a hollow part; the air outlet is communicated with the hollow part;

a plurality of first grooves are uniformly formed in the outer side wall of the fixing column, are arranged along the air inlet direction and form a second air inlet channel with the inner wall of the lower heat exchange core; the first groove is communicated with the hollow part; a plurality of second grooves are formed in the outer wall of the lower heat exchange core; the second grooves are arranged along the air inlet direction, and a first air inlet channel is formed between the second grooves and the inner wall of the heating tube; the first groove is communicated with the second groove.

Optionally, the baffle is provided with an outer edge part, and the outer edge part protrudes out of the outer side wall of the fixing column; a hollow groove is formed in the lower heat exchange core, and the fixed column of the upper heat exchange core is sleeved in the hollow groove of the lower heat exchange core; a through groove is formed between the fixing column and the baffle; a gap structure is formed between the opening end of the fixing column and the bottom surface of the lower heat exchange core; the second air inlet channel is communicated with the hollow-out part through the gap structure, and the first air inlet channel is communicated with the second air inlet channel through the through groove.

Optionally, the open end interval of heat transfer core is equipped with a plurality of first bellyings down, per two be equipped with first air inlet between the first bellyings, first bellyings with outer edge portion is kept away from the bottom surface butt of cigarette props up fixedly, first air inlet with it corresponds to lead to the groove, the second inlet channel passes through lead to the groove first air inlet with first inlet channel intercommunication, the venthole passes through fretwork portion void structure with second inlet channel intercommunication.

Optionally, the inner wall of the heating tube is of a smooth structure, and the inner wall of the lower heat exchange core is also of a smooth structure; the cross-sectional area of the first groove is equal to the cross-sectional area of the second groove.

Optionally, the first groove and the second groove are both semicircular grooves.

Optionally, a plurality of second protruding portions are arranged at intervals at the opening end of the fixing column, top surfaces of the plurality of second protruding portions are abutted to the bottom surface of the lower heat exchange core, and the gap structure is formed between every two second protruding portions.

Optionally, the open end of the fixing column is a planar port, and the open end of the fixing column is not abutted to the bottom surface of the lower heat exchange core to form the void structure.

Optionally, an abutting area of the first boss portion and the bottom surface of the outer edge portion is larger than an abutting area of the second boss portion and the bottom surface of the lower heat exchange core.

Optionally, the air outlet includes a plurality of sub air outlets, and the sub air outlets are arranged corresponding to the hollow-out portions of the upper heat exchange core.

Compared with a straight-through type air inlet heating mode that the air flow is heated by a heating body at the bottom of the atomizer, the heated hot air flow directly continues to rise to enter the bottom of a cigarette, the straight-through type air inlet heating mode is characterized in that a first air inlet channel is formed by attaching the outer wall of the heat exchange core part and the inner wall of the heating tube part, a second air inlet channel is arranged in the heat exchange core, an air outlet hole of the heat exchange core, which faces the top surface of the cigarette, is communicated with the first air inlet channel through the second air inlet channel, and the air inlet directions of the first air inlet channel and the second air inlet channel are opposite.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

fig. 1 is a schematic overall structural diagram of an electronic atomizer provided in an embodiment of the present application;

fig. 2 is a schematic diagram of an explosion structure of an electronic atomizer provided in an embodiment of the present application;

FIG. 3 is an exploded view of a heat exchanger core of an electronic atomizer according to a first embodiment of the present application;

FIG. 4 is a schematic view of the overall structure of a heat exchange core of an electronic atomizer according to a first embodiment of the present application

FIG. 5 isbase:Sub>A schematic cross-sectional view taken along section line A-A' of FIG. 4;

FIG. 6 is a side elevational schematic view of a heat exchange core provided in accordance with a first embodiment of the present application;

fig. 7 is a cross-sectional view of a heat exchange core according to a second embodiment of the present application.

10, an electronic atomizer; 11. a heat generating tube; 12. a heat exchange core; 13. an upper heat exchange core; 131. a baffle plate; 132. an outer edge portion; 133. fixing the column; 134. a hollow-out section; 135. a first groove; 136. a second boss; 14. a lower heat exchange core; 141. hollowing out the grooves; 142. a second groove; 143. a first boss portion; 144. a first air inlet; 15. a first air intake passage; 16. a second intake passage; 17. an air outlet; 171. a sub-air outlet; 18. a through groove; 19. a void structure; 20. and (5) cigarette making.

Detailed Description

The present application will now be described in detail with reference to the drawings and alternative embodiments, it being understood that any combination of the various embodiments or technical features described below may form new embodiments without conflict.

Fig. 1 is a schematic structural diagram of an electronic atomizer provided in an embodiment of the present application, and fig. 2 is a schematic structural diagram of an electronic atomizer provided in an embodiment of the present application; as shown in fig. 1-2, the electronic atomizer 10 includes a heat pipe 11 and a heat exchanging core 12, wherein the heat pipe 11 may be made of ceramic or other heat generating materials for generating heat; the heat exchange core 12 sets up in the heating tube 11 for the air current that gets into for the outside provides the heat transfer passageway, just be equipped with cigarette 20 in the heating tube 11, cigarette 20 with the heat exchange core 12 piles up the setting, cigarette 20 does not paste mutually with the inner wall of heating tube 11, and the hot gas flow that only produces through heat exchange core 12 transmits cigarette 20's local position, local position can be the central point of cigarette 20 and put, also can be the marginal position of cigarette 20, can adjust heat exchange core 12 according to actual demand. Of course, the electronic atomizer 10 also includes a battery and other structures, which are not listed here.

The top surface of the heat exchange core 12 is abutted against one end of the cigarette 20, part of the outer wall of the heat exchange core 12 is attached to the inner wall of the heating tube 11, the other part of the outer wall is not attached to the inner wall of the heating tube 11 to form a first air inlet channel 15, a second air inlet channel 16 is arranged in the heat exchange core 12, an air outlet 17 is formed in the top surface of the heat exchange core 12 facing the cigarette 20, and the air outlet 17 is communicated with the first air inlet channel 15 through the second air inlet channel 16; the first intake passage 15 and the second intake passage 16 have opposite intake directions.

Compared with a straight-through type air inlet heating mode that the air flow is heated by a heating body at the bottom of the atomizer, the heated hot air flow directly continues to rise to enter the bottom of the cigarette 20, a first air inlet channel 15 is formed by adhering part of the outer wall of the heat exchange core 12 and part of the inner wall of the heating tube 11, and a second air inlet channel 16 is arranged in the heat exchange core 12, an air outlet 17 of the heat exchange core 12 facing the top surface of the cigarette 20 is communicated with the first air inlet channel 15 through the second air inlet channel 16, the air inlet directions of the first air inlet channel 15 and the second air inlet channel 16 are opposite, so that the air flow entering from the bottom of the electronic atomizer 10 can reach the inner space of the heat exchange core 12 through the first air inlet channel 15 and then the second air inlet channel 16 after passing through the first air inlet channel 15, the air flow is folded, the length of the air flow entering from the outside is prolonged, the heat exchange distance of the air flow is increased, the heat exchange area of the air flow is increased, unnecessary temperature of the air flow after the air flow enters the heating tube 11 and the inside the cigarette core 12 is basically kept consistent, the temperature of the cigarette 20 is ensured, the uniform energy of the atomizer 20 is sucked, and the atomizer 10, and the taste loss is reduced, and the atomizer is simultaneously.

The heat exchange core 12 may be an integral structure or a split structure, and when the heat exchange core 12 is a split structure, as shown in fig. 3 to 4, the heat exchange core 12 includes an upper heat exchange core 13 and a lower heat exchange core 14, the upper heat exchange core 13 is sleeved in the lower heat exchange core 14, the air outlet 17 is disposed on the upper heat exchange core 13, a part of the outer wall of the lower heat exchange core 14 is not attached to the inner wall of the heat pipe 11 to form the first air inlet passage 15, a part of the outer wall of the upper heat exchange core 13 is not attached to the part of the inner wall of the lower heat exchange core 14 to form the second air inlet passage 16, and the air outlet 17 is communicated with the first air inlet passage 15 through the second air inlet passage 16.

The upper heat exchange core 13 is made of a high-temperature resistant material with good heat conductivity, so that the air flow entering the second air inlet channel 16 can be heated, and the energy loss can be reduced. Moreover, the heat exchange core 12 is divided into the upper heat exchange core 13 and the lower heat exchange core 14, so that the upper heat exchange core and the lower heat exchange core are more convenient to disassemble and assemble, and the heat exchange core 12 is simple to manufacture, and if the heat exchange core 12 is of an integrated structure, the process is relatively difficult due to the fact that a gas storage space is needed inside the heat exchange core 12 and the heat exchange core is integrally formed. Of course, it is also possible to form the heat exchange core 12 in one piece.

The first embodiment is as follows:

as shown in fig. 3 to 5, as a first embodiment provided by the present application, in the present embodiment, the upper heat exchange core 13 includes a baffle 131 and a fixing column 133, one end of the fixing column 133 is fixedly connected to the bottom surface of the baffle 131 far away from the cigarette 20, and the fixing column 133 is sleeved in the lower heat exchange core 14; the baffle 131 is provided with the air outlet 17; the fixing column 133 is hollow to form a hollow part 134; the air outlet 17 is communicated with the hollow part 134.

Moreover, a plurality of first grooves 135 are uniformly formed on the outer side wall of the fixing column 133, the plurality of first grooves 135 are arranged along the air inlet direction, and the second air inlet channel 16 is formed between the plurality of first grooves 135 and the inner wall of the lower heat exchange core 14; the first groove is communicated with the hollow part; a plurality of second grooves 142 are uniformly formed in the outer side wall of the lower heat exchange core 14, the plurality of second grooves 142 are arranged along the air inlet direction, and the first air inlet channel 15 is formed between the plurality of second grooves 142 and the inner wall of the heating tube 11; the first groove 135 and the second groove 142 communicate. The upper heat exchange core 13 and the lower heat exchange core 14 are sleeved and fixed, and form an air inlet channel after being matched on the basis of the original structure of the upper heat exchange core and the lower heat exchange core, and the air inlet channel does not need to be formed on the heat exchange core by a re-processing process, so that the assembly efficiency can be improved, and the labor cost can be reduced.

In addition, the baffle 131 is provided with an outer edge portion 132, and the outer edge portion 132 protrudes out of the outer side wall of the fixing column 133; the lower heat exchange core 14 is hollow, and a hollow groove 141 is formed; the fixing column 133 of the upper heat exchange core 13 is sleeved in the hollow-out groove 141 of the lower heat exchange core 14; a through groove 18 is arranged between the fixing column 133 and the baffle 131; a gap structure 19 is formed between the open end of the fixing column 133 and the bottom surface of the lower heat exchange core 14; the second air intake channel 16 and the hollow portion 134 communicate through the void structure 19, and the first air intake channel 15 and the second air intake channel 16 communicate through the through groove 18.

Specifically, a plurality of first protruding portions 143 are arranged at intervals at the open end of the lower heat exchange core 14, and a first air inlet 144 is arranged between every two first protruding portions 143; the fixing column 133 of the upper heat exchange core 13 is fastened and fixed with the hollow-out groove 141 of the lower heat exchange core 14, the first protruding portion 143 is abutted and fixed with the bottom surface of the outer edge portion 132 away from the cigarette 20, wherein the first air inlet 144 corresponds to the through groove 18, the second air inlet channel 16 is communicated with the first air inlet channel 15 through the through groove 18 and the first air inlet 144, and the air outlet 17 is communicated with the second air inlet channel 16 through the hollow-out portion and the void structure 19.

The direction of the arrow in fig. 5 is the air intake direction of the external air flow, and it can be known from fig. 5 that after the upper and lower heat exchange cores 14 are abutted and fixed, the air flow directly heats the air flow through the heating pipe 11 when entering the first air intake channel 15, the heated air flow enters the second air intake channel 16 through the through groove 18 and reaches the bottom of the lower heat exchange core 14, and then enters the hollow-out portion 134 of the upper heat exchange core 13 through the gap structure between the bottom of the upper heat exchange core 13 and the bottom of the lower heat exchange core 14 to be mixed, at this time, the air intake channel is elongated, and the flow of the air flow can be controlled through the fixed air intake channel, thereby ensuring that the temperature of the air flow entering from the first air intake channel is basically consistent until the temperature of the air flow entering the cigarette 20 reaches the cigarette 20, and further ensuring the roasting taste of the cigarette 20.

The through grooves 18 are arranged around a circle along the central axis of the baffle 131, so that after the upper heat exchange core 13 and the lower heat exchange core 14 are abutted and fixed, the circle corresponding to the fixing column 133 of the first boss 143 is hollowed out, and no matter whether the first air inlet channel 15 and the second air inlet channel 16 are aligned, the outlet of the first air inlet channel 15 and the inlet of the second air inlet channel 16 are communicated through the through grooves 18, so that the upper heat exchange core 13 and the lower heat exchange core 14 can be conveniently installed, and the installation accuracy is higher.

Of course, the through groove 18 may not be arranged around the baffle by one circle, but a plurality of baffles 131 arranged at intervals are arranged at the through groove 18, and after the first protrusions 143 abut against the baffles 131, each stopper is arranged to be attached to each first protrusion 143, so that the first air inlet 144 formed between every two first protrusions 143 corresponds to the space formed between every two baffles 131, and the first air inlet channel 15 and the second air inlet channel 16 may also be communicated. The upper core 13 and the lower core 14 are assembled by aligning the first bosses 143 with the stoppers 131.

In addition, one side wall of the first protrusion 143 is attached to the inside of the heat-generating tube 11, and the air flow passes through the first air inlet passage 15 and then enters only the second air inlet passage 16, so that air leakage is not caused.

Further, the gap structure may be formed by a plurality of protrusions, specifically, as shown in fig. 5, a plurality of second protrusions 136 are spaced from the opening end of the fixing column 133, the top surfaces of the plurality of second protrusions 136 abut against the bottom surface of the lower heat exchange core 14, and the gap structure 19 is formed between every two second protrusions 136. That is to say, an air inlet is formed between every two second protruding portions 136, and after the air flow enters from the second air inlet channel 16, the air flow reaches the bottom of the lower heat exchange core 14 and then enters the middle position of the heat exchange core 12 through the air inlet to be mixed, so that the air flow directly reaches the bottom of the heat exchange core 12, the air flow can be mixed more uniformly and more sufficiently, the air inlet channel through which the air flow passes is long, the air flow heating area is relatively large, and even if the energy of the mixed air flow is lost, the temperature required by baking the cigarettes 20 can be maintained, so as to meet the baking requirement. Of course, it is also possible that the second protruding portion 136 does not abut against the bottom surface of the lower heat exchange core 14, that is, the second protruding portion 136 and the bottom surface of the lower heat exchange core 14 may be separated by a small gap, so that the heated air flows can be uniformly mixed, and the influence on the temperature of the heated air flows is small.

On one hand, after the air flow enters the bottom of the heat exchange core 12 from the second air inlet channel 16, a part of the air flow can be communicated and mixed between the second bosses 136 and the side walls of the lower heat exchange core 14, and then enters the bottom of the heat exchange core 12 from the gap structures 19 formed between every two other second bosses 136, so that the air flow is dispersed and relatively uniform; on the other hand, the area of the top surface of the second protruding portion 136 is larger, so that the area of the supporting point of the second protruding portion 136 to the upper heat exchange core 13 is also larger, the supporting effect is better, and the friction between the lower surface of the baffle 131 and the top surface of the second protruding portion 136 can be increased, and the upper and lower heat exchange cores 14 are not easy to rotate after being installed and clamped, so that the first air inlet channel 15 and the second air inlet channel 16 are staggered, thereby reducing the distance between the first air inlet channel 15 and the second air inlet channel 16, and enabling the airflow to flow faster.

As shown in fig. 6, in this embodiment, the first groove 135 and the second groove 142 are configured as semicircular grooves, the inner wall of the heat generating tube 11 is of a smooth planar structure, the inner wall of the lower heat exchange core 14 is also of a smooth planar structure, so that the second air inlet channel 16 formed by the first groove 135 and the inner wall of the lower heat exchange core 14 is a semicircular channel, the first air inlet channel 15 formed by the second groove 142 and the inner wall of the heat generating tube 11 is also of a semicircular channel, and two semicircular side edges respectively abut against the inner wall relative to the formation of the circular air inlet channel, so that the semicircular air channel formed in this way is less prone to air leakage, the air inflow of the air flow entering from the semicircular air inlet channel is more controllable, and the surface of the semicircular air channel is smooth, and there is no edge angle, so that the air flow is smoother and less prone to turbulence. Of course, the first intake passage 15 and the second intake passage 16 may also be circular or rectangular, and may be specifically configured according to actual preference and requirements.

Further, the cross-sectional area of the first groove 135 is equal to the cross-sectional area of the second groove 142, that is, the size of the first groove 135 is equal to the size of the second groove 142, so that the equal air intake amount and the uniform air intake speed can be ensured.

As shown in fig. 3, can be more concentrated in order to guarantee the air current after the heating, venthole 17 includes a plurality of sub ventholes 171, and is a plurality of sub venthole 171 only corresponds go up the fretwork portion 134 of heat transfer core 13 and arrange the setting, because the one end of cigarette 20 pastes fixedly mutually with the top surface of heat transfer core 12 the air current direct alignment after the inside mixture of heat transfer core 12 cigarette 20's middle part position is derived, and the air current after heating like this concentrates the middle part position that lets in cigarette 20, and toasts to diffusion all around, can make the toast of cigarette 20 more abundant, improves the equilibrium of cigarette 20 suction, thereby reduces the peculiar smell that cigarette 20 toasted the stock form and caused all the same time, guarantees the suction taste.

The plurality of sub air outlets 171 are uniformly spaced and have the same shape and size, and the plurality of sub air inlets are circumferentially distributed along the central axis of the baffle 131. The uniformity of the heated airflow outlet is ensured. Moreover, as shown in the figure, the height of the plurality of sub air outlet holes 171 is 1/3 of the height of the upper heat exchange core 13, and the height of the sub air outlet holes 171 is greater than the thickness of the baffle 131, so that on one hand, the air outlet channel of the mixed air flow passing through the air outlet holes 17 is relatively long, and as the upper heat exchange core 13 also has thermal conductivity, the air outlet channel has corresponding temperature, the temperature of the mixed air flow can be further maintained, and the baking effect of the cigarettes 20 can be ensured; on the other hand, the supporting force of the fixing columns 133 of the upper heat exchange core 13 is ensured, and the upper heat exchange core can be pressed more tightly and is not easy to slide after being clamped with the lower heat exchange core 14.

Example two:

as shown in fig. 7, the present embodiment is different from the first embodiment in that the open end of the fixed column 133 is a planar port, the open end of the fixed column 133 is not abutted against the bottom surface of the lower heat exchange core 14 to form the gap structure 19, that is, after the upper heat exchange core 13 is engaged with the lower heat exchange core 14, a hollow space is formed between the fixed column 133 and the bottom surface of the lower heat exchange core 14, and when the heated airflow reaches the outlet of the second air inlet channel 16 after entering from the air inlet channel, the airflow starts to be mixed and then enters the bottom of the heat exchange core 12, so that the situation of uneven mixing of the airflow can be avoided as much as possible, and the baking effect of the subsequently mixed heated airflow on the cigarettes 20 is ensured.

It should be noted that the inventive concept of the present application is not limited to the above description, but the space of the application document is limited and cannot be listed one by one; for those skilled in the art to which the present application pertains, several simple deductions or substitutions may be made without departing from the concept of the present application, and all should be considered as belonging to the protection scope of the present application.

Claims (10)

1. An electronic atomizer, comprising:

a heating tube generating heat;

the heat exchange core is arranged in the heating tube and provides a heat exchange channel for the airflow entering from the outside; cigarettes are arranged in the heating pipe, and the cigarettes and the heat exchange core are stacked;

the top surface of the heat exchange core is abutted against one end of a cigarette, part of the outer wall of the heat exchange core is attached to the inner wall of the heating tube, the other part of the outer wall of the heat exchange core is not attached to the inner wall of the heating tube to form a first air inlet channel, a second air inlet channel is arranged in the heat exchange core, the heat exchange core faces towards the top surface of the cigarette and is provided with an air outlet hole, and the air outlet hole is communicated with the first air inlet channel through the second air inlet channel.

2. The electronic atomizer of claim 1, wherein said heat exchange core comprises an upper heat exchange core and a lower heat exchange core, said upper heat exchange core being nested within said lower heat exchange core; the air outlet is arranged on the upper heat exchange core, part of the outer wall of the lower heat exchange core is not attached to the inner wall of the heating pipe to form the first air inlet channel, part of the outer wall of the upper heat exchange core is not attached to the part of the inner wall of the lower heat exchange core to form the second air inlet channel, and the air outlet is communicated with the first air inlet channel through the second air inlet channel.

3. The electronic atomizer according to claim 2, wherein said upper heat exchange core comprises a baffle plate and a fixing post, one end of said fixing post is fixedly connected to the bottom surface of said baffle plate away from said cigarette, said fixing post is sleeved in said lower heat exchange core; the baffle is provided with the air outlet hole; the fixing column is hollow to form a hollow part; the air outlet is communicated with the hollow part;

a plurality of first grooves are uniformly formed in the outer side wall of the fixing column, are arranged along the air inlet direction, and form a second air inlet channel with the inner wall of the lower heat exchange core; the first groove is communicated with the hollow part;

a plurality of second grooves are formed in the outer wall of the lower heat exchange core; the second grooves are arranged along the air inlet direction, and a first air inlet channel is formed between the second grooves and the inner wall of the heating tube; the first groove and the second groove are communicated.

4. The electronic atomizer of claim 3, wherein said baffle has an outer edge portion protruding from an outer sidewall of said stationary post; the lower heat exchange core is hollow to form a hollow groove, and the fixed column of the upper heat exchange core is sleeved in the hollow groove of the lower heat exchange core;

a through groove is formed between the fixing column and the baffle; a gap structure is formed between the opening end of the fixing column and the bottom surface of the lower heat exchange core; the second air inlet channel is communicated with the hollow-out part through the gap structure, and the first air inlet channel is communicated with the second air inlet channel through the through groove.

5. The electronic atomizer according to claim 4, wherein a plurality of first protrusions are provided at an interval at an open end of the lower heat exchange core, a first air inlet is provided between every two first protrusions, the first protrusions and the outer edge portion are away from the bottom surface of the cigarette and are abutted and fixed, the first air inlet corresponds to the through groove, the second air inlet channel is communicated with the first air inlet channel through the through groove, and the air outlet hole is communicated with the second air inlet channel through the hollow portion and the void structure.

6. The electronic atomizer according to claim 3, wherein the inner wall of said heat-generating tube is of a smooth structure, and the inner wall of said lower heat exchange core is also of a smooth structure; the sectional area of the first groove is equal to that of the second groove.

7. The electronic atomizer of claim 5, wherein a plurality of second raised portions are spaced from an open end of said stationary post, a top surface of each of said plurality of second raised portions abuts a bottom surface of said lower heat exchange core, and said void structure is formed between every two of said second raised portions.

8. The electronic atomizer of claim 4, wherein said open end of said stationary post is a planar port, said open end of said stationary post not abutting a bottom surface of said lower heat exchange core to form said void structure.

9. The electronic atomizer of claim 7, wherein said first raised portion abuts a bottom surface of said outer rim portion in an area greater than an area of said second raised portion abutting a bottom surface of said lower heat exchanger core.

10. The electronic atomizer of claim 3, wherein said air outlet comprises a plurality of sub-air outlets, and said plurality of sub-air outlets are arranged only in correspondence to said hollowed-out portion of said upper heat exchange core.

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