Electronic atomization device

Abstract

The utility model provides an electronic atomization device. The electronic atomization device comprises a shell assembly, an atomization core, an airflow sensor and a circuit board assembly. A containing bin, an air outlet channel and an air flow channel are arranged in the shell assembly, and a first air inlet communicated with the atmosphere is formed in the shell assembly; the airflow sensor is provided with a first end face and a second end face which are oppositely arranged, the first end face is provided with a second air inlet communicated with the first air inlet, one end of the airflow channel is communicated with the atomization channel, and the other end of the airflow channel leads to the second end face; the airflow sensor is arranged on the side, away from the atomization channel, of the circuit board assembly. The circuit board assembly can prevent liquid generated in the atomization channel from flowing to the first end face of the airflow sensor. According to the electronic atomization device, the circuit board assembly can prevent the liquid generated in the atomization channel from flowing to the airflow sensor, the problem that the liquid flows to the airflow sensor, and consequently the airflow sensor breaks down is effectively solved, and the reliability of the electronic atomization device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic atomization, and in particular to an electronic atomization device. Background Art

[0002] An electronic atomization device is a product that generates aerosol by heating an aerosol matrix. The electronic atomization device includes a housing assembly, an atomization core installed in the housing assembly, and an airflow sensor. The atomization core has an atomization channel, and the housing assembly is provided with an air inlet hole connected to the atomization channel. The airflow sensor is generally arranged between the atomization channel and the air inlet hole.

[0003] Liquids such as condensate will form in the atomization channel, and the liquid will easily flow along the atomization channel to the airflow sensor, often causing damage to the airflow sensor or causing it to start automatically. Utility Model Content

[0004] The present application provides an electronic atomization device, which can solve the problem that liquid in an atomization channel easily flows onto an airflow sensor, causing the airflow sensor to malfunction.

[0005] In order to solve the above technical problems, the present application provides an electronic atomization device, including a shell assembly, an atomization core, an airflow sensor and a circuit board assembly. A storage bin, an air outlet channel and an airflow passage are arranged in the shell assembly, the storage bin is used to accommodate an aerosol matrix, and a first air inlet hole connected to the atmosphere is arranged on the shell assembly; the atomization core is arranged inside the shell assembly, and an atomization channel connected to the air outlet channel is formed inside the atomization core, and the atomization core is used to heat the atomized aerosol matrix to generate an aerosol in the atomization channel; the airflow sensor is arranged inside the shell assembly, and the airflow sensor has a first end face and a second end face arranged oppositely, and a second air inlet hole connected to the first air inlet hole is arranged on the first end face, one end of the airflow passage is connected to the atomization channel, and the other end of the airflow passage leads to the second end face; the circuit board assembly is arranged inside the shell assembly, and the circuit board assembly is electrically connected to the airflow sensor and the atomization core; the circuit board assembly is arranged on the side of the atomization channel away from the air outlet channel, and the airflow sensor is arranged on the side of the circuit board assembly away from the atomization channel, and the first end face is close to the circuit board assembly relative to the second end face; the circuit board assembly can block the liquid generated in the atomization channel from flowing to the first end face of the airflow sensor.

[0006] In one embodiment, a circuit board assembly includes a circuit board and a cover body, and a first through hole is arranged on the circuit board; the cover body is arranged on a side of the circuit board close to the atomization channel, and at least a part of the cover body is arranged on a side of the first through hole close to the atomization channel, and the cover body and the circuit board cooperate to form a first cavity, or a first cavity is formed in the cover body; the first cavity is connected to the first air inlet hole; one end of the first through hole is connected to the first cavity, and the other end of the first through hole is connected to the second air inlet hole; the cover body and the circuit board can block the liquid in the atomization channel from flowing to the first end face of the airflow sensor.

[0007] In one embodiment, a groove is provided on one side of the cover body close to the circuit board, the groove cooperates with the circuit board to form a first cavity, the end surface of the cover body close to the circuit board abuts against the circuit board, and the groove is arranged opposite to the first through hole.

[0008] In one embodiment, the electronic atomization device also includes a protective member, which is arranged on a side of the circuit board away from the cover body, and the protective member cooperates with the circuit board to form a second cavity; the airflow sensor is arranged in the second cavity; an opening is arranged on the cavity wall of the second cavity, and the opening is arranged opposite to the second end face, and the second cavity is connected to the airflow passage through the opening.

[0009] In one embodiment, an air guide channel connected to the first air inlet hole is provided in the protective member, and a second through hole is provided on the circuit board, one end of the second through hole is connected to the air guide channel, and the other end of the second through hole is connected to the first cavity; the cover body is provided on the side of the second through hole close to the atomization channel to prevent the liquid in the atomization channel from flowing out of the electronic atomization device along the air guide channel.

[0010] In one embodiment, the circuit board is perpendicular to the axial direction of the atomization channel.

[0011] In one embodiment, a third air inlet hole is also provided on the shell assembly, and the third air inlet hole is spaced apart from the first air inlet hole; a main air duct is provided inside the shell assembly, one end of the main air duct is connected to the third air inlet hole, and the other end of the main air duct is connected to the atomization channel.

[0012] In one embodiment, the shell assembly includes a base, an installation cavity is provided inside the base, and the circuit board assembly and the airflow sensor are arranged inside the installation cavity; a protrusion is provided on the bottom wall of the installation cavity away from the atomization channel, and the protrusion and the bottom wall of the installation cavity are arranged to form a third cavity, and at least part of the airflow passage and at least part of the airflow sensor are arranged in the third cavity; the first air inlet hole is provided on the bottom wall of the third cavity away from the atomization channel, and the third air inlet hole and the main air duct are provided outside the third cavity.

[0013] In one embodiment, the electronic atomization device further includes a first liquid absorbing member, which is provided between the atomization channel and the circuit board assembly, and is used to absorb liquid flowing out of the atomization channel.

[0014] In one embodiment, the electronic atomization device also includes a second liquid absorption piece, which is arranged inside the air outlet channel, or a third through hole is provided on the second liquid absorption piece, and a part of the air outlet channel is formed in the third through hole, and the second liquid absorption piece is used to absorb the liquid in the air outlet channel.

[0015] The present application provides an electronic atomization device, including a housing assembly, an atomization core, an airflow sensor and a circuit board assembly. A housing assembly is provided with a storage bin, an air outlet channel and an airflow passage, the storage bin is used to accommodate an aerosol matrix, and a first air inlet hole connected to the atmosphere is provided on the housing assembly; the atomization core is provided inside the housing assembly, an atomization passage connected to the air outlet channel is formed inside the atomization core, and the atomization core is used to heat the atomized aerosol matrix to generate an aerosol in the atomization passage; the airflow sensor is provided inside the housing assembly, the airflow sensor has a first end face and a second end face arranged oppositely, a second air inlet hole connected to the first air inlet hole is provided on the first end face, one end of the airflow passage is connected to the atomization passage, and the other end of the airflow passage leads to the second end face; the circuit board assembly is provided inside the housing assembly, and the circuit board assembly is electrically connected to the airflow sensor and the atomization core; the circuit board assembly is provided on a side of the atomization passage away from the air outlet channel, the airflow sensor is provided on a side of the circuit board assembly away from the atomization passage, and the first end face is close to the circuit board assembly relative to the second end face; the circuit board assembly can block the liquid generated in the atomization passage from flowing to the first end face of the airflow sensor. The electronic atomization device of the present application arranges the airflow sensor on a side of the circuit board assembly away from the atomization channel. The circuit board assembly is located between the airflow sensor and the atomization channel, thereby facilitating the blocking of liquid generated in the atomization channel from flowing to the airflow sensor through the sealing structure of the circuit board assembly itself or by adding an additional cover to the circuit board, thereby effectively avoiding the problem of liquid flowing to the airflow sensor and causing airflow sensor failure, thereby improving the reliability of the electronic atomization device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of an electronic atomization device provided in one embodiment of the present application from one perspective;

[0017] Figure 2 A schematic structural diagram of an electronic atomization device provided in an embodiment of the present application from another perspective;

[0018] Figure 3 for Figure 1 A cross-sectional view of

[0019] Figure 4 An airflow route diagram of the main airway provided in an embodiment of the present application;

[0020] Figure 5 An airflow route diagram of a suction action sensed by an airflow sensor provided in an embodiment of the present application;

[0021] Figure 6 for Figure 1 Schematic diagram of the explosion structure;

[0022] Figure 7 A schematic diagram of the structure of a base and a circuit board assembly provided in one embodiment of the present application;

[0023] Figure 8 A schematic diagram of the structure of a circuit board assembly, an airflow sensor and a protective member provided in one embodiment of the present application;

[0024] Fig. 9 for Figure 3 a portion of a cross-sectional view of;

[0025] Fig.10 A schematic diagram of the structure of a protective member provided in one embodiment of the present application;

[0026] Fig.11 A schematic structural diagram of a base provided in one embodiment of the present application.

[0027] Description of the drawings: Shell assembly: 10, accommodating chamber: 11, liquid storage member: 111, main air channel: 12, air outlet channel: 13, air flow passage: 14, first air inlet hole: 15, third air inlet hole: 16, base: 17, mounting cavity: 171, protrusion: 172, third cavity: 173, atomization core: 20, atomization channel: 21, air flow sensor: 30, first end face: 31, second end face: 32, circuit board assembly: 40, circuit board: 41, first through hole: 411, second through hole: 412, cover body: 42, groove: 421, first cavity: 43, protective member: 50, second cavity: 51, opening: 52, air guide channel: 53, first liquid absorption member: 60, second liquid absorption member: 70, third through hole: 71. DETAILED DESCRIPTION

[0028] The present application is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are intended to enable the present application to be better understood. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0029] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations, and the operation steps involved in each embodiment can also be replaced or adjusted in a sequence in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing a certain embodiment and do not mean that the composition and / or sequence are necessary.

[0030] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0031] The terms "parallel", "vertical", etc. are defined for the current state of the art, rather than being absolutely strict definitions in a mathematical sense. A small amount of deviation is allowed, and approximately parallel, approximately vertical, etc. are all acceptable. For example, A and B are parallel, which means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0° and 10°. For example, A and B are perpendicular, which means that A and B are perpendicular or approximately perpendicular, and the angle between A and B can be between 80° and 100°. The directional terms mentioned in the embodiments of the present application, such as "upper", "inner", "outer", "side", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0032] Please refer to Figure 1-3 The present application provides an electronic atomization device. The electronic atomization device can be used for atomization of an aerosol matrix. The electronic atomization device includes a housing assembly 10, an atomization core 20, an airflow sensor 30, and a circuit board assembly 40.

[0033] The housing assembly 10 is provided with a storage chamber 11, a main air passage 12, an air outlet passage 13 and an air flow passage 14. The storage chamber 11 is used to store an aerosol matrix, which may specifically include a plant grass leaf matrix, such as a cigarette oil matrix. The aerosol matrix may be directly provided in the storage chamber 11. Alternatively, a liquid storage part 111 may be provided in the storage chamber 11, and the liquid storage part 111 has a porous structure, and the aerosol matrix is ​​stored in the porous structure of the liquid storage part 111.

[0034] The atomizer core 20 is disposed inside the housing assembly 10, and the atomizer core 20 is electrically connected to the circuit board assembly 40. The aerosol matrix in the storage chamber 11 can flow to the atomizer core 20, and the atomizer core 20 includes a heating element, which is used to generate heat to heat the atomized aerosol matrix so that the aerosol matrix generates an aerosol. The atomizer core 20 has an atomization channel 21, one end of the atomization channel 21 is connected to the main airway 12, and the main airway 12 and the air outlet channel 13 are both connected to the external atmosphere, and the other end of the atomization channel 21 is connected to the air outlet channel 13. Figure 4 As shown, Figure 4 An airflow route diagram of the main airway 12 is provided for one embodiment of the present application. The airflow can enter the electronic atomization device from the main airway 12 and flow from the main airway 12 to the atomization channel 21. The airflow carries the aerosol atomized in the atomization channel 21 and finally flows out of the electronic atomization device from the air outlet channel 13 for use by the user.

[0035] The airflow sensor 30 and the circuit board assembly 40 are both disposed inside the housing assembly 10. The airflow sensor 30 is electrically connected to the circuit board assembly 40, and the airflow sensor 30 may be, for example, a microphone or a silicon microphone. Figure 3 As shown, the airflow sensor 30 has a first end face 31 and a second end face 32 arranged opposite to each other in the axial direction, and a second air inlet hole is arranged on the first end face 31. The housing assembly 10 is provided with a first air inlet hole 15, one end of which is connected to the external atmosphere, and the other end of the first air inlet hole 15 is connected to the second air inlet hole, so that the air pressure on one side of the first end face 31 of the airflow sensor 30 is consistent with the external atmosphere. One end of the airflow passage 14 in the housing assembly 10 is connected to the atomization channel 21, and the other end of the airflow passage 14 leads to the second end face 32. Figure 5 As shown, when the user produces a suction action at the air outlet channel 13, since the air outlet channel 13 is connected to the airflow passage 14, a negative pressure can be generated on the second end face 32 of the airflow sensor 30, so that the first end face 31 and the second end face 32 of the airflow sensor 30 have an air pressure difference, and the airflow sensor 30 can generate an electrical signal according to the air pressure difference, and the control circuit can control the operation of the electronic atomization device according to the electrical signal.

[0036] The circuit board assembly 40 is arranged on a side of the atomization channel 21 away from the air outlet channel 13, and the airflow sensor 30 is arranged on a side of the circuit board assembly 40 away from the atomization channel 21, and the first end surface 31 is close to the circuit board assembly 40 relative to the second end surface 32. The circuit board assembly 40 can block the liquid generated in the atomization channel 21 from flowing to the first end surface 31 of the airflow sensor 30, that is, the circuit board assembly 40 can block the liquid generated in the atomization channel 21 from flowing from the second air inlet hole to the airflow sensor 30. Specifically, the circuit board assembly 40 includes at least a circuit board 41, and the circuit board 41 can block the liquid in the atomization channel 21 from flowing to the first end surface 31 of the airflow sensor 30.

[0037] The electronic atomization device of the present application arranges the airflow sensor 30 on a side of the circuit board assembly 40 away from the atomization channel 21. The circuit board assembly 40 is located between the airflow sensor 30 and the atomization channel 21. Therefore, it can block the liquid generated in the atomization channel 21 from flowing to the airflow sensor 30, effectively avoiding the problem of liquid flowing to the airflow sensor 30 and causing the airflow sensor 30 to malfunction, thereby improving the reliability of the electronic atomization device.

[0038] Some existing electronic atomization devices adopt the method of setting a liquid-proof film or liquid-proof cloth on the surface of the airflow sensor 30 to prevent liquid from flowing into the airflow sensor 30, or further set a nano-coating process on the surface of the liquid-proof film or liquid-proof cloth. However, the liquid-proof film or liquid-proof cloth can only play a preliminary protective role for the liquid that has leaked into the airflow sensor 30. In the case where the electronic atomization device leaks liquid seriously, the liquid will adhere to the surface of the oil-proof cloth. The liquid pressure is relatively large and it will still leak into the interior of the airflow sensor 30. The risk of liquid leakage from the airflow sensor 30 cannot be completely avoided.

[0039] The present application uses a circuit board assembly 40 to block the liquid in the atomization channel 21 from flowing to the airflow sensor 30. The circuit board assembly 40 includes at least a circuit board 41. The circuit board 41 has a stronger anti-permeability than a liquid-proof film or a liquid-proof cloth. In the case of serious liquid leakage from the electronic atomization device, the liquid is not easy to directly penetrate the circuit board 41 to the airflow sensor 30, reducing the risk of liquid leakage from the airflow sensor 30. In addition, the circuit board assembly 40 is arranged between the airflow sensor 30 and the atomization channel 21, which can also prevent the user from accidentally starting the electronic atomization device by blowing in the opposite direction when using the electronic atomization device.

[0040] In one embodiment, the circuit board 41 is perpendicular to the axial direction of the atomization channel 21. Thus, the surface of the circuit board 41 close to the atomization channel 21 can carry a certain amount of liquid flowing out of the atomization channel 21, preventing the liquid from flowing out of the electronic atomization device from the main airway 12. Of course, in other embodiments, the circuit board 41 can also have a certain angle with the axial direction of the atomization channel 21, and the liquid falling on the circuit board 41 can be guided along the circuit board 41 to the liquid collection bin inside the housing assembly 10.

[0041] In one embodiment, if Figure 3 , Figure 7 and Figure 8As shown, the circuit board assembly 40 includes a circuit board 41 and a cover body 42. The circuit board 41 is provided with a first through hole 411 penetrating the circuit board 41. The cover body 42 is provided on a side of the circuit board 41 close to the atomization channel 21, and at least a part of the cover body 42 is provided on a side of the first through hole 411 close to the atomization channel 21, so that the cover body 42 can prevent the liquid in the atomization channel 21 from flowing along the first through hole 411 to the first end surface 31 of the airflow sensor 30. The cover body 42 can be made of a material with low permeability, such as metal or hard plastic.

[0042] like Fig. 9 As shown, the cover 42 cooperates with the circuit board 41 to form a first cavity 43, or the first cavity 43 is formed in the cover 42. Figure 8 As shown, in one embodiment, a groove 421 is provided on one side of the cover body 42 close to the circuit board 41, and the groove 421 cooperates with the circuit board 41 to form a first cavity 43. The end surface of the cover body 42 close to the circuit board 41 abuts against the circuit board 41, and the groove 421 is arranged opposite to the first through hole 411. This structure does not require changing the structure of the circuit board 41 itself, and the cover body 42 can be placed on the circuit board 41. The structure is simple and easy to assemble. In other embodiments, the circuit board 41 may form a groove, and the first through hole 411 is opened at the bottom of the groove. The cover body 42 may be in the shape of a flat plate, and the cover body 42 is placed on the opening of the groove of the circuit board 41 and blocks the opening of the groove.

[0043] The first cavity 43 is connected to the first air inlet 15. One end of the first through hole 411 is connected to the first cavity 43, and the other end of the first through hole 411 is connected to the second air inlet. In this embodiment, the first end surface 31 of the airflow sensor 30 abuts against the side of the circuit board 41 away from the atomization channel 21, that is, the airflow sensor 30 can use a patch microphone. In order to enable the first air inlet 15 and the second air inlet to be connected smoothly, it is necessary to set the first through hole 411 on the circuit board 41. The first through hole 411 can be arranged opposite to the second air inlet, for example Figure 5 As shown, the airflow can flow from the first air inlet 15 to the first cavity 43, and then enter the second air inlet through the first through hole 411. By arranging the cover 42 on the circuit board 41, the airflow sensor 30 can adopt a patch microphone.

[0044] In other embodiments, the present application may also use a circuit board 41 alone to directly block the liquid in the atomization channel 21 from penetrating into the airflow sensor 30. The airflow sensor 30 may be configured as a pin microphone, that is, there is a certain distance between the first end face 31 and the circuit board 41. The air path between the second air inlet hole and the first air inlet hole 15 of the airflow sensor 30 may not need to pass through the circuit board 41, so there is no need to additionally set a cover 42 on the circuit board 41. In this way, the number of parts inside the electronic atomization device can be reduced, and the cost can be reduced.

[0045] like Figure 8-10 As shown, the electronic atomization device further includes a protective member 50, which is disposed on a side of the circuit board 41 away from the cover body 42. The protective member 50 cooperates with the circuit board 41 to form a second cavity 51, and the airflow sensor 30 is disposed in the second cavity 51. An opening 52 is disposed on the cavity wall of the second cavity 51, and the opening 52 is disposed opposite to the second end face 32. The second cavity 51 is communicated with the airflow passage 14 through the opening 52, so that the airflow of the airflow passage 14 can pass to the second end face 32 of the airflow sensor 30 in the protective member 50. By disposing the airflow sensor 30 in the protective member 50, the protective member 50 can protect the airflow sensor 30 from collision. The protective member 50 can be made of an elastic material, such as silicone, so as to improve the airtightness between the protective member 50 and the circuit board 41.

[0046] Furthermore, an air guide channel 53 communicating with the first air inlet hole 15 is provided in the protective member 50, and a second through hole 412 is provided on the circuit board 41, one end of the second through hole 412 is communicated with the air guide channel 53, and the other end of the second through hole 412 is communicated with the first cavity 43; the cover body 42 is provided on the side of the second through hole 412 close to the atomization channel 21 to prevent the liquid in the atomization channel 21 from flowing out of the electronic atomization device along the second through hole 412 and the air guide channel 53. In other embodiments, according to the position of the first air inlet hole 15, the airflow from the first air inlet hole 15 to the first cavity 43 may not pass through the protective member 50, and the first cavity 43 may be directly connected to the first air inlet hole 15 according to the structure of the adjustment cover body 42.

[0047] In one embodiment, if Fig. 9 As shown, the housing assembly 10 is further provided with a third air inlet hole 16. The third air inlet hole 16 is spaced apart from the first air inlet hole 15; Fig. 9 In the lateral direction, the third air inlet hole 16 and the air flow sensor 30 are staggered. One end of the main air passage 12 of the housing assembly 10 is connected to the third air inlet hole 16, and the other end of the main air passage 12 is connected to the atomization channel 21. Figure 4 and Figure 5 As shown, by arranging the first air inlet hole 15 and the third air inlet hole 16 at intervals on the shell assembly 10, the air inlet passage of the air flow sensor 30 and the air inlet passage of the main air duct 12 can be made independent of each other, so that the air inlet passage of the air flow sensor 30 and the air inlet passage of the main air duct 12 can avoid interference with each other, so as to avoid the problem of false start-up of the air flow sensor 30.

[0048] In one embodiment, if Figure 8 and Fig.10As shown, the housing assembly 10 includes a base 17, and a mounting cavity 171 is provided inside the base 17, and the circuit board assembly 40 and the airflow sensor 30 are arranged inside the mounting cavity 171. A protrusion 172 is provided on the bottom wall of the mounting cavity 171 away from the atomization channel 21, and the protrusion 172 and the bottom wall of the mounting cavity 171 are surrounded to form a third cavity 173, and at least part of the airflow passage 14 and at least part of the airflow sensor 30 are arranged in the third cavity 173. Specifically, the side of the protective member 50 away from the atomization channel 21 is installed in the third cavity 173, and at least part of the airflow passage 14 is formed between a part of the protective member 50 and the bottom wall of the mounting cavity 171. The first air inlet 15 is arranged on the bottom wall of the third cavity 173 away from the atomization channel 21, and the third air inlet 16 and the main airway 12 are arranged outside the third cavity 173. Therefore, by setting a protrusion 172 on the base 17, the air path of the airflow sensor 30 can be set independently from the main air duct 12, and the first air inlet hole 15 and the third air inlet hole 16 can be set independently from each other, thereby improving the independence between the air path of the airflow sensor 30 and the main air duct 12.

[0049] In one embodiment, if Figure 3 As shown, the electronic atomization device further includes a first liquid absorbent member 60, which has a porous structure, and can be, for example, liquid absorbent cotton. The first liquid absorbent member 60 is provided between the atomization channel 21 and the circuit board assembly 40, and the first liquid absorbent member 60 is used to absorb the liquid flowing out of the atomization channel 21. By providing the first liquid absorbent member 60 in the electronic atomization device, the first liquid absorbent member 60 can collect the liquid flowing out of the atomization channel 21 to the side of the circuit board assembly 40, so that the liquid flowing to the circuit board assembly 40 is as little as possible.

[0050] In one embodiment, if Figure 3 As shown, the electronic atomization device further includes a second liquid absorbent member 70, which has a porous structure, and can be, for example, a liquid absorbent cotton. The second liquid absorbent member 70 is disposed inside the gas outlet channel 13, or a third through hole 71 is disposed on the second liquid absorbent member 70, and the third through hole 71 forms a part of the gas outlet channel 13, and the second liquid absorbent member 70 is used to absorb the liquid in the gas outlet channel 13. By arranging the second liquid absorbent member 70 in the electronic atomization device, the second liquid absorbent member 70 can collect the liquid flowing out of the atomization channel 21 to the side of the gas outlet channel 13, and prevent the liquid from flowing out of the electronic atomization device from the gas outlet channel 13.

[0051] The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the art of the present invention, some simple deductions, deformations or substitutions can be made based on the idea of ​​the present invention.

Claims

1. An electronic atomization device, characterized in that: include: A shell component, wherein a storage chamber, an air outlet channel and an air flow passage are arranged in the shell component, the storage chamber is used to accommodate the aerosol matrix, and the shell component is provided with a first air inlet hole communicating with the atmosphere; an atomizer core, the atomizer core being disposed inside the housing assembly, an atomizer channel communicating with the air outlet channel being formed inside the atomizer core, and the atomizer core being used to heat and atomize the aerosol matrix to generate aerosol in the atomizer channel; an airflow sensor, the airflow sensor being arranged inside the housing assembly, the airflow sensor having a first end face and a second end face arranged opposite to each other, the first end face being provided with a second air inlet hole communicating with the first air inlet hole, one end of the airflow passage being connected to the atomization passage, and the other end of the airflow passage leading to the second end face; and a circuit board assembly, wherein the circuit board assembly is arranged inside the shell assembly, and the circuit board assembly is electrically connected to the airflow sensor and the atomization core; the circuit board assembly is arranged on a side of the atomization channel away from the air outlet channel, the airflow sensor is arranged on a side of the circuit board assembly away from the atomization channel, and the first end face is close to the circuit board assembly relative to the second end face; the circuit board assembly can block the liquid generated in the atomization channel from flowing to the first end face of the airflow sensor.

2. The electronic atomization device according to claim 1, characterized in that: The circuit board assembly includes a circuit board and a cover body, and a first through hole is arranged on the circuit board; the cover body is arranged on a side of the circuit board close to the atomization channel, and at least a part of the cover body is arranged on a side of the first through hole close to the atomization channel, and the cover body cooperates with the circuit board to form a first cavity, or a first cavity is formed in the cover body; the first cavity is connected to the first air inlet hole; one end of the first through hole is connected to the first cavity, and the other end of the first through hole is connected to the second air inlet hole; the cover body and the circuit board can block the liquid in the atomization channel from flowing to the first end face of the airflow sensor.

3. The electronic atomization device according to claim 2, characterized in that: A groove is provided on one side of the cover body close to the circuit board, and the groove cooperates with the circuit board to form the first cavity. The end surface of the cover body close to the circuit board abuts against the circuit board, and the groove is arranged opposite to the first through hole.

4. The electronic atomization device according to claim 2, characterized in that: The electronic atomization device also includes a protective piece, which is arranged on a side of the circuit board away from the cover body, and the protective piece cooperates with the circuit board to form a second cavity; the airflow sensor is arranged in the second cavity; an opening is provided on the cavity wall of the second cavity, and the opening is arranged opposite to the second end face, and the second cavity is connected to the airflow passage through the opening.

5. The electronic atomization device according to claim 4, characterized in that: An air guide channel connected to the first air inlet hole is provided in the protective member, and a second through hole is provided on the circuit board, one end of the second through hole is connected to the air guide channel, and the other end of the second through hole is connected to the first cavity; the cover body is provided on a side of the second through hole close to the atomization channel to prevent the liquid in the atomization channel from flowing out of the electronic atomization device along the air guide channel.

6. The electronic atomization device according to claim 2, characterized in that: The circuit board is perpendicular to the axis direction of the atomization channel.

7. The electronic atomization device according to claim 1, characterized in that: The shell component is also provided with a third air inlet hole, and the third air inlet hole is spaced apart from the first air inlet hole; the shell component has a main air channel inside, one end of the main air channel is connected to the third air inlet hole, and the other end of the main air channel is connected to the atomization channel.

8. The electronic atomization device according to claim 7, characterized in that: The shell assembly includes a base, an installation cavity is provided inside the base, the circuit board assembly and the airflow sensor are arranged inside the installation cavity; a protrusion is provided on the bottom wall of the installation cavity away from the atomization channel, the protrusion and the bottom wall of the installation cavity are arranged to form a third cavity, at least part of the airflow passage and at least part of the airflow sensor are arranged in the third cavity; the first air inlet is provided on the bottom wall of the third cavity away from the atomization channel, and the third air inlet and the main air channel are provided outside the third cavity.

9. The electronic atomization device according to claim 1, characterized in that: It also includes a first liquid absorbing member, which is arranged between the atomization channel and the circuit board assembly, and is used to absorb liquid flowing out of the atomization channel.

10. The electronic atomization device according to claim 1, characterized in that: It also includes a second liquid absorbent member, which is arranged inside the air outlet channel, or a third through hole is arranged on the second liquid absorbent member, and a part of the air outlet channel is formed in the third through hole, and the second liquid absorbent member is used to absorb the liquid in the air outlet channel.

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