Atomization device

Abstract

The utility model provides an atomization device which comprises a shell, an oil cup, a heating body and a sealing piece, and the oil cup is connected with the shell and comprises at least two oil bins arranged in the circumferential direction of the oil cup; the heating bodies are located in the shell, the number of the heating bodies is at least two, and the heating bodies and the oil bins are arranged in a one-to-one mode; the sealing piece wraps the at least two heating bodies, at least one ventilation groove is formed in at least one side face, close to each heating body, of the sealing piece, and the ventilation grooves penetrate through the sealing piece in the axial direction of the shell. The number of the sealing pieces is reduced, the assembling process of the sealing pieces is simple, and the labor cost is reduced. Thus, after the tobacco tar in the tar bin is guided into the heating area to form negative pressure, gas outside the tar bin is guided into the tar bin through the ventilation groove, negative pressure is prevented from being formed in the tar bin, then the guiding-out efficiency of the tobacco tar in the tar bin is improved, the condition of dry burning of a heating piece is avoided, and therefore the service life of the heating body is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of atomization equipment, in particular to an atomization device. BACKGROUND

[0002] The existing atomization device, especially the atomization device provided with multiple heating bodies, usually adopts multiple individual sealing pieces to realize one-to-one sealing, which leads to complex assembly process and high labor cost. In addition, when the heating body of the atomization device is a porous ceramic structure, the oil in the oil tank is guided to the heating area through the capillary effect of the heating body. When the tobacco tar in the oil tank is guided to the heating area, the internal space of the oil tank increases. The oil tank is usually a closed space, a negative pressure is formed in the oil tank, which leads to low oil guiding efficiency in the oil tank, and may cause dry burning, affecting the service life of the heating body. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the present application provides an atomization device to solve the problems of complex sealing piece assembly process, high labor cost, dry burning of the heating body, and low service life of the heating body.

[0004] In order to achieve the above purpose, the present application provides the following technical scheme:

[0005] An atomization device comprises:

[0006] a shell;

[0007] an oil cup connected with the shell and comprising at least two oil tanks arranged circumferentially along the oil cup;

[0008] a heating body located in the shell, the heating body being provided with at least two and arranged one-to-one with the oil tank;

[0009] a sealing piece covering the at least two heating bodies, the sealing piece being provided with at least one air exchange groove near at least one side surface of each heating body, and the air exchange groove penetrating through the sealing piece in the axial direction of the shell.

[0010] Optionally, a wall surface of the oil cup near the sealing piece and / or the sealing piece is provided with a connecting air channel, the connecting air channel being used for connecting at least two air exchange grooves, and the connecting air channel not extending to the end of the oil cup and the sealing piece.

[0011] Optionally, at least two air exchange grooves are arranged on one side surface of the heating body, and the air exchange grooves are arranged on at least two opposite side surfaces of the heating body.

[0012] Optionally, the number of air exchange grooves arranged on the two opposite side surfaces of the heating body is equal.

[0013] Optionally, a suction nozzle is connected to the oil cup, a gas guide channel is arranged in the middle of the oil cup and communicates with the suction nozzle, a first connecting air channel is arranged on the wall surface of the oil cup close to the sealing element, and the first connecting air channel comprises a first annular air channel part surrounding the gas guide channel and a plurality of first connecting air channel parts respectively connecting the first annular air channel part and the air exchange groove.

[0014] Optionally, a second connecting air channel is arranged on the wall surface of the sealing element and is aligned with the first connecting air channel, the second connecting air channel comprises a second annular air channel part surrounding the gas guide channel and a plurality of second connecting air channel parts respectively connecting the second annular air channel part and the air exchange groove.

[0015] Optionally, the sealing element is provided with a connecting air channel connected to the air exchange groove, and the connecting air channel comprises a plurality of branch air channels connecting the air exchange grooves located on the sides of the heating body.

[0016] Optionally, the cross-sectional dimension of the air exchange groove is less than or equal to 0.3mm*0.3mm.

[0017] Optionally, the heating body is a ceramic heating body, and a recess for accommodating the heating body is arranged on the side of the oil reservoir close to the heating body.

[0018] Optionally, a base is arranged in the shell, the base is located on the side of the heating body away from the oil cup, and an atomization cavity is formed between the base and the oil cup.

[0019] The atomization device provided in the application reduces the number of sealing elements by arranging a sealing element to cover a plurality of heating bodies, simplifies the assembly process of the sealing element, and reduces labor costs. At least one air exchange groove is arranged on at least one side of each heating body close to the sealing element, and the air exchange groove penetrates the sealing element in the axial direction of the shell. When the tobacco tar in the oil reservoir is guided to the heating area to form a negative pressure in the oil reservoir, the gas outside the oil reservoir is introduced into the oil reservoir through the air exchange groove, avoiding the formation of a negative pressure in the oil reservoir, thereby improving the efficiency of guiding the tobacco tar in the oil reservoir, avoiding dry burning of the heating element, and prolonging the service life of the heating body. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only embodiments of the application, and those skilled in the art can obtain other drawings according to the provided drawings without creative labor.

[0021] Figure 1 The structure schematic diagram of the atomization device provided in the embodiment;

[0022] Figure 2 isometric view of the atomizing device;

[0023] Figure 3 is Figure 1 is a sectional view along A-A;

[0024] Figure 4 is a structural view of the oil cup and the heating body;

[0025] Figure 5 is a structural view of the sealing member and the heating body;

[0026] Figure 6 is a structural view of the oil cup, the sealing member and the heating body;

[0027] Figure 7 is a sectional view of the atomizing device from another angle;

[0028] Figure 8 is Figure 7 is an enlarged view of a part;

[0029] Figure 9 is a structural view of the oil cup with a connecting air passage;

[0030] Figure 10 is a sectional view of the atomizing device from another angle;

[0031] Figure 11 is a structural view of the atomizing device from another angle;

[0032] Figure 12 is a structural view of the sealing member with a connecting air passage;

[0033] Figure 13 is a structural view of the oil cup with a first connecting air passage;

[0034] Figure 14 is a structural view of the sealing member with a second connecting air passage.

[0035] Figures 1-14 is

[0036] 1 - shell, 2 - oil cup, 3 - heating body, 4 - sealing member, 5 - connecting air passage, 6 - suction nozzle, 7 - base, 8 - PCB board, 9 - battery;

[0037] 21 - oil reservoir, 22 - air guiding passage, 23 - first connecting air passage, 41 - air exchange groove, 42 - second connecting air passage;

[0038] 231 - first annular air passage part, 232 - first connecting air passage part, 421 - second annular air passage part, 422 - second connecting air passage part. DETAILED DESCRIPTION

[0039] The application provides an atomization device.

[0040] The technical solutions in the embodiments of the application will be apparently and completely described in connection with the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without any creative work fall within the protection scope of the application.

[0041] As shown in the figure, Figures 1-14 The application provides an atomization device, which can be an electronic cigarette or the like. The atomization device mainly comprises a shell 1, an oil cup 2, heating bodies 3 and a sealing member 4. The oil cup 2 is connected with the shell 1 and comprises at least two oil reservoirs 21 arranged circumferentially on the oil cup 2, and the oil reservoirs 21 are provided with tobacco tar. The heating bodies 3 are located in the shell 1, and at least two heating bodies 3 are provided and arranged one by one with the oil reservoirs 21. In this way, one heating body 3 is used to heat the tobacco tar in one oil reservoir 21 directed to the heating body 3, so as to realize the atomization of the tobacco tar. When a user inhales through a suction nozzle 6 of the atomization device, the airflow from the outside to the inside of the atomization device guides the atomized smoke of the tobacco tar to the suction nozzle 6.

[0042] The sealing member 4 covers the at least two heating bodies 3, that is, one sealing member 4 covers all the heating bodies 3. In this way, when the heating bodies 3 and the sealing member 4 of the atomization assembly are installed, the at least two heating bodies 3 are first assembled to the sealing member 4, and then the sealing member 4 and the heating bodies 3 are assembled together into the shell 1. In this way, the assembly efficiency of the sealing member 4 and the heating bodies 3 can be improved, the assembly process of the atomization device is simple, and the labor cost is reduced. Further, at least one air exchange groove 41 is formed on at least one side surface of each heating body 3, and the air exchange groove 41 penetrates through the sealing member 4 in the axial direction of the shell 1. In this way, when the heating bodies 3 atomize the tobacco tar in the oil reservoirs 21, the tobacco tar in the oil reservoirs 21 is guided to the heating bodies 3 through the capillary effect, the heating bodies 3 atomize the tobacco tar, the tobacco tar in the sealed oil reservoirs 21 is reduced, and a negative pressure is formed in the oil reservoirs 21. Since at least one side surface of each heating body 3 is provided with the air exchange groove 41, the gas outside the oil reservoirs 21 can enter the oil reservoirs 21 through the air exchange grooves 41, so as to restore the normal atmospheric pressure in the oil reservoirs 21. In this way, the tobacco tar in the oil reservoirs 21 can be guided to the heating area of the heating bodies 3 through the capillary effect of the heating bodies 3 again, so as to continuously realize the heating and atomization of the tobacco tar, and avoid the dry burning of the heating bodies 3.

[0043] It should be noted that the number of air exchange grooves 41 provided on the sealing member 4 on each side of each heating body 3 is not limited herein, and one or more air exchange grooves 41 can be provided. Correspondingly, the number of air exchange grooves 41 provided on each side of each heating body 3 is also not limited, and one or more air exchange grooves 41 can be provided on one or more sides of the heating body 3.

[0044] For example, the axial direction of the shell 1 refers to the direction indicated by the bidirectional arrow Z. Figure 3 For example, the axial direction of the shell 1 refers to the direction indicated by the bidirectional arrow Z.

[0045] In the present embodiment, the cross-sectional dimension of the air exchange groove 41 is less than or equal to 0.3 mm*0.3 mm. If the cross-sectional dimension of the air exchange groove 41 is too large, the tobacco juice in the oil reservoir 21 will directly flow out of the air exchange groove 41. If the cross-sectional dimension of the air exchange groove 41 is too small, the air exchange groove 41 can be completely closed due to part processing precision and assembly error, causing poor exhaust of the oil reservoir 21 and affecting the customer's smoking experience. By ensuring that the cross-sectional dimension of the air exchange groove 41 is within the above range, the gas can more easily enter the oil reservoir 21, and the tobacco juice can be prevented from flowing out of the air exchange groove 41, thereby improving the customer's smoking experience.

[0046] The above-mentioned atomization device, by setting one sealing member 4 to cover multiple heating bodies 3, reduces the number of sealing members 4, simplifies the assembly process of the sealing member 4, and reduces labor costs. The sealing member 4 is provided with at least one air exchange groove 41 near at least one side of each heating body 3, and the air exchange groove 41 penetrates the sealing member 4 in the axial direction of the shell 1. In this way, when the tobacco juice in the oil reservoir 21 is guided to the heating area in the oil reservoir 21 to form a negative pressure, the gas outside the oil reservoir 21 is introduced into the oil reservoir 21 through the air exchange groove 41, thereby avoiding the formation of a negative pressure in the oil reservoir 21, improving the efficiency of the tobacco juice in the oil reservoir 21, and avoiding the situation that the heating element is dry, thereby prolonging the service life of the heating body 3.

[0047] In some embodiments, the oil cup 2 is provided with a connecting air channel 5 near the wall surface of the sealing member 4 and / or on the sealing member 4. The connecting air channel 5 is used to connect at least two air exchange grooves 41, and the connecting air channel 5 does not extend to the end of the oil cup 2 and the sealing member 4. In the assembly process of the atomization device, due to the existence of assembly error, when the air exchange groove 41 on one side of a certain heating body 3 is blocked, the tobacco juice in the oil reservoir 21 corresponding to the heating body 3 is reduced, and the external gas cannot be introduced into the oil reservoir 21 through the air exchange groove 41 in time, which cannot relieve the negative pressure in the oil reservoir 21, resulting in poor air exchange of the gas in the oil reservoir 21. By providing the above-mentioned connecting air channel 5, when the air exchange groove 41 on one side of a certain heating body 3 is blocked, the air exchange groove 41 on the other side of the heating body 3 can be used for air exchange through the connecting air channel 5, thereby achieving the effect of relieving the negative pressure in the oil reservoir 21, avoiding poor air exchange of the oil reservoir 21 corresponding to the heating body 3, and ensuring the atomization efficiency of the heating body 3 on the tobacco juice in the oil reservoir 21.

[0048] It should be noted that the connecting air channel 5 does not extend to the end of the oil cup 2 and the sealing member 4, that is, the connecting air channel 5 only connects the air exchange grooves 41 on the side of the plurality of heating bodies 3 in series, and is not directly connected to the external atmosphere, so the connecting air channel 5 will not cause the problem of leakage of tobacco tar.

[0049] In some embodiments, at least two air exchange grooves 41 are arranged on one side of the heating body 3, that is, at least two air exchange grooves 41 are arranged between one side of the heating body 3 and the sealing member 4. By arranging multiple air exchange grooves 41, at least two air exchange grooves 41 can more quickly relieve the negative pressure in the oil reservoir 21 during the process of heating the tobacco tar guided to the heating body 3 by the oil reservoir 21, so that more air flows back to the oil reservoir 21 per unit time, thereby ensuring the atomization efficiency of the atomization device. Further, the air exchange grooves 41 are arranged on at least two opposite sides of the heating body 3, that is, the air exchange grooves 41 are arranged between at least two opposite sides of the heating body 3 and the sealing member 4. The air exchange grooves 41 arranged between the heating body 3 and the sealing member 4 can simultaneously intake air from multiple positions, thereby improving the air intake efficiency of the oil reservoir 21 after the reduction of tobacco tar, and further improving the efficiency of the tobacco tar in the oil reservoir 21 guided to the heating body 3 by capillary effect, and further improving the atomization efficiency of the atomization device. Moreover, arranging the air exchange grooves 41 on opposite sides of the heating body 3 facilitates the arrangement of the connecting air channel 5 and reduces the processing difficulty.

[0050] It should be noted that the air exchange grooves 41 can also be arranged on adjacent sides of the heating body 3, so that when a negative pressure is formed in the oil reservoir 21, air outside the oil reservoir 21 can also enter the oil reservoir 21 from multiple positions.

[0051] In some embodiments, the number of air exchange grooves 41 arranged on two opposite sides of the heating body 3 is equal. That is, a plurality of air exchange grooves 41 are arranged, and the air exchange grooves 41 are arranged between the two opposite sides of the heating body 3 and the sealing member 4, respectively, and the number of air exchange grooves 41 arranged on the opposite sides of the heating body 3 is equal. In this way, when the tobacco tar in the oil reservoir 21 is heated by the capillary effect to the heating area of the heating body 3, a negative pressure is generated in the sealed oil reservoir 21, and air is guided to the oil reservoir 21 by the air exchange grooves 41 arranged on the opposite sides of the heating body 3. Since the number of air exchange grooves 41 arranged on the opposite sides of the heating body 3 is equal, the external air can be uniformly guided to the oil reservoir 21 by the air exchange grooves 41 arranged on the opposite sides of the heating body 3, thereby improving the consistency of the external air guided to the oil reservoir 21.

[0052] In some embodiments, the atomization device comprises a suction nozzle 6 connected with the oil cup 2, and the middle part of the oil cup 2 is provided with a gas guiding channel 22 communicated with the suction nozzle 6. When the atomization device is working, the switch of the atomization device is turned on, the battery 9 of the atomization device is in an energized state, the user inhales through the suction nozzle 6, the microphone of the atomization device senses the air pressure and sends an opening signal to the PCB 8, the PCB 8 controls the heating body 3 to work, the tobacco juice guided to the heating body 3 by the oil reservoir 21 is atomized into smoke, the user inhales from the suction nozzle 6, the gas outside the atomization device enters the atomization device and moves along the air channel in the atomization device, when it moves to the position of the heating body 3, the gas carries the atomized smoke to the user's mouth through the gas guiding channel 22, and a atomization cycle is completed.

[0053] As shown in the drawings, the oil cup 2 is provided with a first connecting air channel 23 on the wall surface close to the sealing element 4, the first connecting air channel 23 comprises a first annular air channel part 231 surrounding the gas guiding channel 22, and a plurality of first connecting air channel parts 232 respectively connecting the first annular air channel part 231 and the air exchange groove 41. The first annular air channel part 231 is to avoid the gas guiding channel 22, and the plurality of first connecting air channel parts 232 are to realize the communication between the plurality of air exchange grooves 41 and the first annular air channel part 231, and realize the communication between the plurality of air exchange grooves 41. Moreover, since the oil cup 2 is a plastic part, the connecting air channel 5 is arranged on the plastic part, which can prevent the connecting air channel 5 from being blocked due to assembly extrusion and accumulated tolerance. Figure 13 Further, the sealing element 4 is provided with a second connecting air channel 42 opposite to the first connecting air channel 23 on the wall surface close to the oil cup 2, the second connecting air channel 42 comprises a second annular air channel part 421 surrounding the gas guiding channel 22, and a plurality of second connecting air channel parts 422 respectively connecting the second annular air channel part 421 and the air exchange groove 41. This arrangement can also realize the connection of the plurality of air exchange grooves 41 located on the side surface of the different heating bodies 3, realize the communication between the plurality of air exchange grooves 41, so that when part of the air exchange grooves 41 inlets are blocked, the remaining air exchange grooves 41 can guide the gas to the oil reservoir 21 through the connecting air channel 5, to ensure the normal air exchange of the oil reservoir 21. Here, based on the first connecting air channel 23 being arranged on the wall surface of the oil cup 2 close to the sealing element 4, the second connecting air channel 42 opposite to the first connecting air channel 23 is arranged on the wall surface of the sealing element 4 close to the oil cup 2, which can increase the cross-sectional size of the connecting air channel 5, improve the gas flow efficiency of the connecting air channel 5, faster relieve the negative pressure in the oil reservoir 21, and further improve the atomization efficiency of the atomization device. Moreover, when one of the first connecting air channel 23 and the second connecting air channel 42 is blocked or fails, the other connecting air channel 5 can still realize the series connection between the plurality of air exchange grooves 41.

[0054]

[0055] ​In some embodiments, the sealing member 4 is provided with a connecting air passage 5 connected to the air exchange groove 41, and the connecting air passage 5 comprises a plurality of sub-air passages connected to the air exchange grooves 41 located at the side of the adjacent heating body 3. It should be noted that the position of the connecting air passage 5 provided on the sealing member 4 is not limited herein, and the connecting air passage 5 can be provided at the middle of the sealing member 4 or at the end close to the oil cup 2 in the axial direction of the shell 1. The connecting air passage 5 is not in communication with the outside air, and is only used to communicate the plurality of air exchange grooves 41. In this way, when the air exchange groove 41 at the side of a certain heating body 3 is blocked, the air exchange groove 41 at the side of the other heating body 3 can be communicated through the connecting air passage 5 to achieve the effect of relieving the negative pressure in the oil tank 21, so as to avoid poor air exchange of the oil tank 21 corresponding to the heating body 3.

[0056] In some embodiments, the heating body 3 is a ceramic heating body 3, and the side of the oil tank 21 close to the heating body 3 is provided with a recess for accommodating the heating body 3. Specifically, the heating body 3 is deeply inserted into the recess of the oil tank 21, and the heating body 3 is directly in contact with the tobacco tar in the oil tank 21. Since the heating body 3 is a ceramic heating body 3, the ceramic heating body 3 uses the capillary effect of the porous ceramic to guide the tobacco tar to the heating area of the heating body 3, and the heating area heats the tobacco tar to achieve the atomization of the tobacco tar.

[0057] In some embodiments, the atomization device comprises a base 7 arranged in the shell 1, and the base 7 is located at the side of the heating body 3 away from the oil cup 2 and forms an atomization cavity with the oil cup 2. Specifically, when the atomization device is working, the switch of the atomization device is turned on, the user inhales through the suction nozzle 6, the microphone of the atomization device senses the air pressure and sends an opening signal to the PCB 8, and the PCB 8 controls the heating body 3 to work, so as to heat and atomize the tobacco tar guided to the heating body 3 from the oil tank 21 into smoke. At the same time, under the action of the suction force of the suction nozzle 6, the gas enters the atomization device and flows into the atomization cavity through the air inlet hole provided on the base 7, and the gas carrying the atomized smoke is guided to the user's mouth through the air guide channel 22, thereby completing an atomization cycle of the atomization device.

[0058] The basic principles of the present application are described above in combination with specific embodiments, but it should be noted that the advantages, advantages, effects and the like mentioned in the present application are only examples and cannot be considered as the must-have of each embodiment of the present application. In addition, the above specific details are only for the purpose of example and understanding, and the above details do not limit the present application to the above specific details.

[0059] The block diagrams of the devices, apparatuses, equipment, systems involved in the present application are only illustrative examples and are not intended to require or imply that the connection, arrangement, configuration must be as shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, equipment, systems can be connected, arranged, configured in any manner. Words such as "include", "contain", "have", and the like are open-ended words, mean "including but not limited to", and can be used interchangeably. The words "or" and "and" used herein mean the word "and / or", and can be used interchangeably, unless the context clearly indicates otherwise. The word "such as" used herein means the phrase "such as but not limited to", and can be used interchangeably.

[0060] It should also be noted that in the devices, apparatuses and methods of the present application, each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be considered as equivalent solutions of the present application.

[0061] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other aspects without departing from the scope of the present application. Thus, the present application is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0062] It should be understood that the adjectives "first", "second", "third", "fourth", "fifth" and "sixth" used in the embodiments description of the present application are only used for more clearly describing the technical solutions, and cannot be used to limit the protection scope of the present application.

[0063] The above description has been given for the purpose of illustration and description. Furthermore, this description does not intend to limit the embodiments of the present application to the forms disclosed herein. Although a number of example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. An atomising device characterised in that, The application relates to a heating device, comprising: a shell; an oil cup connected to the shell and comprising at least two oil reservoirs arranged circumferentially on the oil cup; a heating body arranged in the shell, wherein the heating body is provided with at least two heating bodies and is arranged one-to-one with the oil reservoirs; a sealing member covering the at least two heating bodies, wherein at least one air exchange groove is arranged on at least one side of each heating body, and the air exchange groove penetrates the sealing member in the axial direction of the shell.

2. The atomization device of claim 1, wherein, The wall surface of the oil cup close to the sealing member and / or the sealing member is provided with a connecting air channel for connecting the at least two air exchange grooves, and the connecting air channel does not extend to the end of the oil cup and the sealing member.

3. The atomization device of claim 1, wherein, The air exchange groove arranged on one side of the heating body is provided with at least two air exchange grooves arranged on at least two opposite sides of the heating body.

4. The atomization device of claim 3, wherein, The number of air exchange grooves arranged on the two opposite sides of the heating body is equal.

5. The atomization device of claim 2, wherein, The oil cup is provided with a suction nozzle connected to the oil cup, a gas guide channel is arranged in the middle of the oil cup and is connected to the suction nozzle, a first connecting air channel is arranged on the wall surface of the oil cup close to the sealing member, the first connecting air channel comprises a first annular air channel part surrounding the gas guide channel and a plurality of first connecting air channel parts respectively connecting the first annular air channel part and the air exchange grooves.

6. The atomization device of claim 5, wherein, The sealing member is provided with a second connecting air channel opposite to the first connecting air channel and arranged on the wall surface of the oil cup close to the sealing member, the second connecting air channel comprises a second annular air channel part surrounding the gas guide channel and a plurality of second connecting air channel parts respectively connecting the second annular air channel part and the air exchange grooves.

7. The atomization device of claim 2, wherein, The sealing member is provided with a connecting air channel connected to the air exchange grooves, and the connecting air channel comprises a plurality of branch air channels connecting the air exchange grooves arranged on the sides of adjacent heating bodies.

8. The atomization device of claim 1, wherein, The cross-sectional dimension of the air exchange groove is less than or equal to 0.3mm*0.3mm.

9. The atomization device of claim 1, wherein, The heating body is a ceramic heating body, and a recess for accommodating the heating body is arranged on one side of the oil reservoir close to the heating body.

10. The atomization device of claim 1, wherein, The application further relates to a heating device, comprising a base arranged in the shell, wherein the base is arranged on the side of the heating body away from the oil cup and forms an atomization cavity between the base and the oil cup.

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