Airflow sensing module and atomization device

Abstract

The embodiment of the utility model provides an airflow sensing module and an atomization device. A base of the airflow sensing module comprises a containing groove, a through hole and an air inlet hole. The containing groove is formed in one side of the base. The through hole and the air inlet are formed in the bottom of the containing groove. The air inlet hole is used for providing airflow for the atomization module. The circuit board is coupled to the base in the accommodating groove. The airflow sensing element is coupled to the circuit board at a side of the circuit board facing the through hole, and is spaced apart from the circuit board. The sealing member sleeves the outer side of the airflow sensing element and abuts against the circuit board. The sealing piece comprises a first flow channel and a second flow channel. The first flow channel is communicated with the through hole and corresponds to the interval between the airflow sensing element and the circuit board. The second flow channel is communicated with the air inlet hole and corresponds to the second side of the airflow sensing element. By means of the arrangement, when the airflow sensing element is arranged in the airflow sensing module, holes do not need to be punched in the circuit board, and the process complexity and the production cost of the airflow sensing module are reduced.

Description

Technical Field

[0001] The embodiments disclosed herein relate generally to the field of atomizers, and more particularly to an airflow sensing module and an atomizing device. Background Technology

[0002] In atomizing devices, the airflow sensor plays a crucial role, controlling the circuit's on / off state by detecting pressure changes within the suction channel. The airflow sensor is soldered onto a circuit board and sealed tightly with silicone to ensure airtightness. The rear of the airflow sensor is open to the atmosphere, while the front is connected to the suction channel. When the user inhales, the negative pressure generated within the suction channel creates a pressure difference across the airflow sensor, triggering the switch. In a conventional airflow sensor module, to achieve the connection between the rear of the airflow sensor and the atmosphere, vent holes need to be provided on the circuit board. The fabrication of these vent holes increases production costs and process complexity. Utility Model Content

[0003] The purpose of the embodiments disclosed herein is to provide an airflow sensing module and an atomizing device to at least partially solve the above-mentioned problems and other potential problems.

[0004] In a first aspect of this disclosure, an airflow sensing module is provided. The airflow sensing module includes: a base, comprising a receiving groove, a through hole, and an air inlet, the receiving groove being disposed on one side of the base, and the through hole and air inlet being disposed at the bottom of the receiving groove, the air inlet being used to provide airflow to an atomizing module; a circuit board, coupled to the base within the receiving groove; an airflow sensing element, coupled to the circuit board on the side of the circuit board facing the through hole and spaced apart from the circuit board, the airflow sensing element including a first side and a second side, the first side facing the circuit board and the second side facing the air inlet; and a sealing member, sleeved on the outside of the airflow sensing element and abutting against the circuit board, and including: a first flow channel communicating with the through hole and corresponding to the gap between the airflow sensing element and the circuit board, such that the first side of the airflow sensing element detects atmospheric pressure via the first flow channel; and a second flow channel communicating with the air inlet and corresponding to the second side of the airflow sensing element, such that the second side detects airflow pressure via the second flow channel.

[0005] In some embodiments, a limiting groove is provided inside the seal, and an airflow sensing element is disposed inside the limiting groove.

[0006] In some embodiments, the seal is provided with an installation channel corresponding to the position of the through hole, and the airflow sensing module further includes: a charging interface disposed in the installation channel and coupled to the circuit board, and a third flow channel is provided between the outer side wall of the charging interface and the inner side wall of the installation channel, the third flow channel communicating with the first flow channel.

[0007] In some embodiments, an annular groove is provided at one end of the mounting channel facing the through hole, and the annular groove is provided around the edge of the mounting channel. The base also includes an annular protrusion disposed in the receiving groove and surrounding the edge of the through hole. The annular protrusion is inserted into the annular groove to limit the position of the seal.

[0008] In some embodiments, the inner wall of the annular groove is provided with ribs, which abut against the annular protrusions.

[0009] In some embodiments, the base further includes a support portion disposed within a receiving groove and connected to the circuit board via a threaded connection.

[0010] In some embodiments, the airflow sensing module further includes a cover coupled to the base at the opening of the receiving groove, and the cover includes an exhaust port communicating with an air inlet and a second flow channel.

[0011] In some embodiments, a positioning groove is provided on the side of the cover away from the circuit board, and the positioning groove is suitable for placing an oil-absorbing component.

[0012] In a second aspect of this disclosure, an atomizing device is provided. The atomizing device includes: an atomizing module having an air intake channel; and an airflow sensing module of the first aspect of this disclosure, coupled to the atomizing module, wherein the air intake of the airflow sensing module is in communication with the air intake channel.

[0013] In some embodiments, the atomizing device further includes an oil-absorbing element disposed on the side of the cover of the airflow sensing module facing the atomizing module.

[0014] In embodiments of this disclosure, the airflow sensing module includes a base, a circuit board, an airflow sensing element, and a seal. The base includes a receiving groove, a through hole, and an air inlet. The receiving groove is disposed on one side of the base, and the through hole and air inlet are disposed at the bottom of the receiving groove. The air inlet provides airflow to the atomizing module. The circuit board is coupled to the base within the receiving groove. The airflow sensing element is coupled to the circuit board on the side of the circuit board facing the through hole and spaced apart from the circuit board. The airflow sensing element includes a first side and a second side, the first side facing the circuit board and the second side facing the air inlet. The seal is sleeved on the outside of the airflow sensing element and abuts against the circuit board. The seal includes a first flow channel and a second flow channel. The first flow channel communicates with the through hole and corresponds to the gap between the airflow sensing element and the circuit board, so that the first side of the airflow sensing element detects atmospheric pressure via the first flow channel. The second flow channel communicates with the air inlet and corresponds to the second side of the airflow sensing element, so that the second side detects airflow pressure via the second flow channel. This arrangement eliminates the need for drilling holes in the circuit board when placing the airflow sensing element within the airflow sensing module, reducing the module's manufacturing complexity and production costs. Simultaneously, the first flow channel connects to the through-hole, resulting in a shorter distance between the first side of the airflow sensing element and the external atmosphere, which helps improve the element's sensitivity.

[0015] It should be understood that the content described in this section is not intended to limit the key or essential features of the embodiments of this disclosure, nor is it intended to restrict the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0016] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. In the drawings, the same or similar reference numerals denote the same or similar elements, wherein:

[0017] Figure 1 A cross-sectional view of an airflow sensing module according to an embodiment of the present disclosure is shown;

[0018] Figure 2 A cross-sectional view of an airflow sensing module according to an embodiment of the present disclosure is shown, in which the airflow path is illustrated;

[0019] Figure 3 An exploded view of an airflow sensing module according to an embodiment of the present disclosure is shown;

[0020] Figure 4 A top view of an airflow sensing module according to an embodiment of the present disclosure is shown;

[0021] Figure 5 A perspective view of an airflow sensing module according to an embodiment of the present disclosure is shown;

[0022] Figure 6 A cross-sectional view of a circuit board, a seal, and an airflow sensing element according to an embodiment of the present disclosure is shown;

[0023] Figure 7 A perspective view of a circuit board, a seal, and an airflow sensing element according to an embodiment of the present disclosure is shown;

[0024] Figure 8 A perspective view of a circuit board, a seal, and an airflow sensing element according to an embodiment of the present disclosure is shown, wherein a channel is illustrated;

[0025] Figure 9 A bottom view of the circuit board, seal, and airflow sensing element according to an embodiment of the present disclosure is shown;

[0026] Figure 10 A cross-sectional view of an atomizing device according to an embodiment of the present disclosure is shown; and

[0027] Figure 11 A perspective view of an atomizing device according to an embodiment of the present disclosure is shown.

[0028] Explanation of reference numerals in the attached figures:

[0029] 100. Airflow sensing module;

[0030] 10. Base; 11. Receiving groove; 12. Through hole; 13. Air inlet; 14. Annular protrusion; 15. Support part; 16. Threaded part;

[0031] 20. Circuit board; 21. Screw hole;

[0032] 30. Airflow sensing element; 31. First side; 32. Second side;

[0033] 40. Seal; 41. First flow channel; 42. Second flow channel; 421. Branch flow channel; 43. Third flow channel; 44. Limiting groove; 45. Installation channel; 451. Annular groove; 452. Raised rib;

[0034] 50. Charging port;

[0035] 60. Cover; 61. Vent hole; 62. Positioning groove;

[0036] 200. Atomizing device;

[0037] 210. Atomizing module; 211. Inhalation channel;

[0038] 220. Oil absorption components. Detailed Implementation

[0039] Preferred embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art.

[0040] The term "comprising" and its variations as used herein signify open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "at least partially based on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc., may refer to different or the same objects.

[0041] As mentioned above, in order to enable the rear side of the airflow sensing element to communicate with the atmosphere in a conventional airflow sensing module, a vent hole needs to be set on the circuit board. The process of processing the vent hole increases the production cost and process complexity.

[0042] This disclosure provides an airflow sensing module and an atomizing device. In this airflow sensing module, an airflow sensing element is spaced apart from a circuit board. A seal is provided with a first flow channel and a second flow channel. A first side of the airflow sensing element detects atmospheric pressure via the first flow channel. A second side of the airflow sensing element detects the pressure of the airflow flowing towards the atomizing module via the second flow channel. Using this arrangement, when the airflow sensing element is placed within the airflow sensing module, it is not necessary to drill holes in the circuit board, reducing the process complexity and production cost of the airflow sensing module. Simultaneously, the first flow channel communicates with a through-hole, and the distance between the first side of the airflow sensing element and the external atmosphere is shorter, which helps to improve the sensitivity of the airflow sensing element. The following will describe... Figures 1 to 9 The principles of this disclosure will be described in detail below.

[0043] like Figures 1 to 5 As shown, the airflow sensing module 100 includes a base 10, a circuit board 20, an airflow sensing element 30, and a seal 40.

[0044] The base 10 not only provides structural support but also integrates several other key components, ensuring stable positioning among them. A receiving groove 11 is provided on one side of the base 10. The receiving groove 11 provides a stable and secure mounting position for the circuit board 20 and the airflow sensing element 30. Furthermore, the structure of the receiving groove 11 provides necessary protection for internal components, preventing damage from accidental impacts or drops.

[0045] A through hole 12 and an air inlet 13 are provided at the bottom of the receiving tank 11. The through hole 12 serves to establish a channel 45, allowing external air to come into contact with the airflow sensing element 30, thereby enabling the sensing element to monitor atmospheric pressure in real time. The air inlet 13 is responsible for guiding external air into the atomization area of ​​the atomization module 210. This airflow comes into contact with the heated atomization matrix to form inhalable steam.

[0046] like Figures 1 to 3 As shown, the circuit board 20 can integrate a microprocessor, sensors, a battery management system, and a heating element control circuit, responsible for the safe operation of the entire atomizing device 200. The circuit board 20 is installed within the receiving slot 11 of the base 10 and is electrically connected to other electronic components. For example, the circuit board 20 can be connected to circuits such as batteries, buttons, and indicator lights, thereby ensuring the smooth operation of all functions of the atomizing device 200.

[0047] like Figure 2As shown, the airflow sensing element 30 triggers the heating process by monitoring changes in the user's suction force, and can adjust the power output of the heating component to provide a better steam experience. Within the airflow sensing module 100, the airflow sensing element 30 is coupled to the side of the circuit board 20 facing the through-hole 12. A certain gap is maintained between the airflow sensing element 30 and the circuit board 20. This allows for free airflow within the gap, ensuring that the airflow sensing element 30 can detect changes in external atmospheric pressure. Furthermore, the gap helps improve the heat dissipation performance of the circuit board 20 and extends the lifespan of the airflow sensing module 100.

[0048] As an example, the airflow sensing element 30 can be connected to the circuit board 20 via pins or pads. The airflow sensing element 30 may have pins or pads that connect to corresponding pads on the circuit board 20 via wires or a flexible printed circuit board (FPC). In this way, a stable electrical connection can be maintained between the airflow sensing element 30 and the circuit board 20 even if there is a gap between them.

[0049] As another example, the airflow sensing element 30 can be connected to the circuit board 20 via a socket. In this way, the socket allows the airflow sensing element 30 to be inserted without applying pressure, thereby protecting the element from damage while maintaining an appropriate distance from the circuit board 20.

[0050] As yet another example, the airflow sensing element 30 may also be connected to the circuit board 20 via spring contacts or a flexible connector, which is not intended to be limiting.

[0051] like Figure 1 As shown, the airflow sensing element 30 includes a first side 31 and a second side 32. The first side 31 faces the circuit board 20 and can detect the air pressure within the gap between the airflow sensing element 30 and the circuit board 20. The second side 32 faces the air inlet 13 and can detect the pressure of the airflow flowing towards the atomizing module 210.

[0052] like Figure 2 As shown, the seal 40 is fitted over the outside of the airflow sensing element 30 and abuts against the circuit board 20. The seal 40 provides a sealed environment for the airflow sensing element 30 to protect it from external contamination and mechanical damage. A first flow channel 41 and a second flow channel 42 are provided on the seal 40, which ensure that the airflow sensing element 30 interacts with external air pressure.

[0053] like Figure 2As shown, the first flow channel 41 corresponds to the spacing between the airflow sensing element 30 and the circuit board 20, and communicates with the through hole 12 on the base 10. The through hole 12 acts as a bridge between the atmosphere and the first side 31 of the airflow sensing element 30, enabling the airflow sensing element 30 to monitor changes in the external atmospheric pressure in real time. When the user uses the atomizing device 200, the atmospheric pressure is transmitted to the first side 31 of the airflow sensing element 30 through the first flow channel 41.

[0054] like Figure 2 As shown, the second flow channel 42 communicates with the air inlet 13 and corresponds to the second side 32 of the airflow sensing element 30. The second side 32 of the airflow sensing element 30 can detect the pressure of the airflow flowing towards the atomizing module 210 via the second flow channel 42. In this way, the airflow sensing module 100 can sense the user's behavior in the first instance, thereby activating the heating component of the atomizing module 210 to generate steam. At the same time, the airflow sensing module 100 can adjust the heating power of the heating component based on the difference between the airflow pressure and atmospheric pressure, thereby improving the atomization effect and the user experience.

[0055] With this arrangement, when the airflow sensing element 30 is placed in the airflow sensing module 100, it is not necessary to drill holes in the circuit board 20, which reduces the process complexity and production cost of the airflow sensing module 100. At the same time, the first flow channel 41 is connected to the through hole 12, and the distance between the first side 31 of the airflow sensing element 30 and the outside atmosphere is short, which helps to improve the sensitivity of the airflow sensing element 30.

[0056] In some embodiments, such as Figure 8 As shown, the seal 40 also includes multiple branch channels 421. The multiple branch channels 421 are connected to the second channel 42, which allows the second side 32 of the airflow sensing element 30 to contact the airflow in the receiving groove 11 in multiple directions, thereby improving the sensitivity of the airflow sensing module 100.

[0057] In some embodiments, such as Figure 3 and Figure 6 As shown, a limiting groove 44 is provided inside the sealing element 40, and the airflow sensing element 30 is disposed inside the limiting groove 44.

[0058] like Figure 3 and Figure 6 As shown, the shape and size of the limiting groove 44 are adapted to the shape and size of the airflow sensing element 30. Under the action of the limiting groove 44, the sealing element 40 can not only ensure stable contact between the airflow sensing element 30 and the circuit board 20, but also align the first side 31 of the airflow sensing element 30 with the first flow channel 41, thereby improving the stability of the airflow sensing element 30 when detecting air pressure.

[0059] In some embodiments, such as Figure 1, Figure 2 and Figure 6 As shown, a mounting channel 45 is provided on the seal 40 at a position corresponding to the through hole 12. Functional components, such as a charging interface 50 or a data interface, can be installed within the mounting channel 45.

[0060] As an example, a charging interface 50 is provided within the mounting channel 45 and coupled to the circuit board 20. In this way, the user can charge the battery assembly within the atomizing device 200 via the charging interface 50 for user convenience.

[0061] like Figure 2 As shown, a third flow channel 43 is provided between the outer side wall of the charging interface 50 and the inner side wall of the mounting channel 45. The third flow channel 43 is connected to the first flow channel 41, so that the first side 31 of the airflow sensing element 30 comes into contact with the external atmosphere along the first flow channel 41 and the third flow channel 43, which helps to shorten the distance between the first side 31 of the airflow sensing element 30 and the external atmosphere, thereby improving the sensitivity of the airflow sensing element 30.

[0062] In some embodiments, such as Figure 1 and Figure 6 As shown, the seal 40 and the base 10 can be connected by a snap-fit ​​structure. The snap-fit ​​structure can restrict the position of the seal 40 within the base 10, which helps to improve the positional stability of the airflow sensing element 30 and the stability of the circuit connection between the airflow sensing element 30 and the circuit board 20.

[0063] In some embodiments, such as Figure 1 and Figure 6 As shown, an annular groove 451 is provided at one end of the mounting channel 45 facing the through hole 12. The annular groove 451 is provided around the edge of the mounting channel 45. An annular protrusion 14 is also provided in the receiving groove 11 of the base 10. The annular protrusion 14 is provided around the edge of the through hole 12 and is inserted into the annular groove 451. The annular protrusion 14 and the annular groove 451 can limit the position of the seal 40.

[0064] like Figure 1 As shown, the end of the charging interface 50 furthest from the circuit board 20 is inserted into the annular protrusion 14, and there is a gap between the inner wall of the annular protrusion 14 and the outer wall of the charging interface 50. This gap allows air to pass through, thereby allowing the first side 31 of the airflow sensing element 30 to contact the external atmosphere.

[0065] In some embodiments, such as Figure 1 and Figure 6As shown, a rib 452 is provided on the inner wall of the annular groove 451, and the rib 452 abuts against the outer wall of the annular protrusion 14. The rib 452 can be squeezed and deformed when the annular protrusion 14 is pressed into the annular groove 451, so that the rib 452 can tightly fill the gap between the annular protrusion 14 and the annular groove 451, thereby significantly improving the sealing performance. It can also effectively prevent gas or liquid leakage in high-pressure or frequent vibration environments.

[0066] In some embodiments, such as Figures 1 to 9 As shown, a support portion 15 is provided in the receiving groove 11 of the base 10. The support portion 15 can be connected to the circuit board 20 via a threaded part 16.

[0067] like Figures 1 to 9 As shown, two support portions 15 are provided within the receiving groove 11. One end of each support portion 15 is fixed to the base 10, and the other end of each support portion 15 is a cantilever end. A screw hole 21 is provided at the cantilever end of each support portion 15, and screw holes 21 are also provided at both ends of the circuit board 20. Two threaded components 16 are respectively connected to the two support portions 15 and the circuit board 20, thereby fixing the circuit board 20 within the receiving groove 11.

[0068] In other embodiments, the circuit board 20 can also be fixed in the receiving groove 11 of the base 10 by a snap-fit ​​structure.

[0069] In some embodiments, such as Figures 1 to 3 As shown, the airflow sensing module 100 also includes a cover 60. The cover 60 is disposed at the opening of the receiving groove 11 and is mounted on the base 10. For example, the cover 60 and the base 10 are connected by a snap-fit ​​structure.

[0070] An exhaust port 61 is provided on the cover 60. The exhaust port 61 is connected to the air inlet 13 and the second flow channel 42. In use, the airflow sensing module 100 is connected to the atomizing module 210. The cover 60 can separate the circuit board 20 and the airflow sensing element 30 from the atomizing module 210, thereby preventing the atomizing matrix in the atomizing module 210 from flowing into the airflow sensing module 100 and avoiding affecting the operation of electronic components.

[0071] When the user inhales, the air in the receiving groove 11 enters the intake channel 211 of the atomizing module 210 along the exhaust port 61. At this time, the air pressure in the receiving groove 11 decreases, and the second side 32 of the airflow sensing element 30 can detect the change in air pressure in the receiving groove 11, thereby controlling the operation of the heating component of the atomizing device 200. Furthermore, if the air pressure in the receiving groove 11 is low, it indicates that the user's inhalation volume is large, and the power of the heating component needs to be increased.

[0072] In some embodiments, the airflow sensing module 100 can control the power of the heating component based on the difference between the airflow pressure in the receiving groove 11 and the atmospheric pressure. In this way, the atomization effect of the atomizing matrix can be guaranteed, thereby improving the user experience.

[0073] In some embodiments, such as Figures 1 to 3 As shown, a positioning groove 62 is provided on the side of the cover 60 away from the circuit board 20, and the positioning groove 62 is suitable for placing the oil-absorbing component 220.

[0074] During the use of the atomizing device 200, due to temperature changes and air pressure differences, some of the atomized vapor may recondense into liquid after cooling, forming condensate. This condensate may flow back along the airflow path to the exhaust port 61 of the cover 60. The condensate may not only clog the exhaust port 61 but may also enter the user's mouth during inhalation, thus affecting the user experience. The oil-absorbing component 220 can be, for example, absorbent cotton. The absorbent cotton can absorb this condensate, preventing its backflow. In this way, through the adsorption effect of the absorbent cotton, the condensate is intercepted, ensuring clean airflow and normal operation of the device. Furthermore, the absorbent cotton can also balance the air pressure inside the atomizing device 200, reducing noise when the airflow passes through the atomizing device 200, thereby improving the user experience.

[0075] In the second aspect of this disclosure, such as Figure 10 and Figure 11 As shown, an atomizing device 200 is provided. The atomizing device 200 includes an atomizing module 210 and an airflow sensing module 100 of any of the above-described types. The atomizing module 210 has an air intake channel 211. The airflow sensing module 100 is coupled to the atomizing module 210, and the air inlet 13 of the airflow sensing module 100 communicates with the air intake channel 211.

[0076] In the airflow sensing module 100 of the atomizing device 200 disclosed herein, the base 10 includes a receiving groove 11, a through hole 12, and an air inlet 13. The receiving groove 11 is disposed on one side of the base 10, and the through hole 12 and the air inlet 13 are disposed at the bottom of the receiving groove 11. The air inlet 13 is used to provide airflow to the atomizing module 210. The circuit board 20 is coupled to the base 10 within the receiving groove 11. The airflow sensing element 30 is coupled to the circuit board 20 on the side of the circuit board 20 facing the through hole 12 and spaced apart from the circuit board 20. The airflow sensing element 30 includes a first side 31 and a second side 32, with the first side 31 facing the circuit board 20 and the second side 32 facing the air inlet 13. A sealing member 40 is sleeved on the outside of the airflow sensing element 30 and abuts against the circuit board 20. The sealing member 40 includes a first flow channel 41 and a second flow channel 42. The first flow channel 41 communicates with the through hole 12 and corresponds to the interval between the airflow sensing element 30 and the circuit board 20, so that the first side 31 of the airflow sensing element 30 detects atmospheric pressure through the first flow channel 41. The second flow channel 42 communicates with the air inlet 13 and corresponds to the second side 32 of the airflow sensing element 30, so that the second side 32 detects airflow pressure through the second flow channel 42. With this arrangement, when the airflow sensing element 30 is placed in the airflow sensing module 100, it is not necessary to drill holes in the circuit board 20, reducing the process complexity and production cost of the airflow sensing module 100. At the same time, the first flow channel 41 communicates with the through hole 12, and the distance between the first side 31 of the airflow sensing element 30 and the outside atmosphere is shorter, which helps to improve the sensitivity of the airflow sensing element 30.

[0077] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, and are not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. An airflow sensing module (100), characterized in that, include: The base (10) includes a receiving groove (11), a through hole (12) and an air inlet (13). The receiving groove (11) is disposed on one side of the base (10), and the through hole (12) and the air inlet (13) are disposed at the bottom of the receiving groove (11). The air inlet (13) is used to provide airflow to the atomizing module (210). The circuit board (20) is coupled to the base (10) within the receiving groove (11); An airflow sensing element (30) is coupled to the circuit board (20) on the side facing the through hole (12) and spaced apart from the circuit board (20). The airflow sensing element (30) includes a first side (31) and a second side (32), the first side (31) facing the circuit board (20) and the second side (32) facing the air inlet (13). as well as A sealing element (40) is fitted over the outside of the airflow sensing element (30) and abuts against the circuit board (20), and includes: A first flow channel (41) communicates with the through hole (12) and corresponds to the interval between the airflow sensing element (30) and the circuit board (20), so that the first side (31) of the airflow sensing element (30) detects atmospheric pressure via the first flow channel (41); and The second flow channel (42) communicates with the air inlet (13) and corresponds to the second side (32) of the airflow sensing element (30) so that the second side (32) detects the pressure of the airflow via the second flow channel (42).

2. The airflow sensing module (100) according to claim 1, characterized in that, The sealing element (40) is provided with a limiting groove (44), and the airflow sensing element (30) is disposed in the limiting groove (44).

3. The airflow sensing module (100) according to claim 1, characterized in that, The sealing element (40) is provided with an installation channel (45) corresponding to the position of the through hole (12), and the airflow sensing module (100) further includes: A charging interface (50) is disposed in the mounting channel (45) and coupled to the circuit board (20). A third flow channel (43) is provided between the outer side wall of the charging interface (50) and the inner side wall of the mounting channel (45), and the third flow channel (43) is connected to the first flow channel (41).

4. The airflow sensing module (100) according to claim 3, characterized in that, An annular groove (451) is provided at one end of the mounting channel (45) facing the through hole (12), and the annular groove (451) is provided around the edge of the mounting channel (45), and the base (10) further includes: An annular protrusion (14) is disposed within the receiving groove (11) and surrounding the edge of the through hole (12). The annular protrusion (14) is inserted into the annular groove (451) to restrict the position of the seal (40).

5. The airflow sensing module (100) according to claim 4, characterized in that, The inner wall of the annular groove (451) is provided with a rib (452), and the rib (452) abuts against the annular protrusion (14).

6. The airflow sensing module (100) according to any one of claims 1 to 5, characterized in that, The base (10) also includes: The support part (15) is disposed in the receiving groove (11) and is connected to the circuit board (20) via a threaded part (16).

7. The airflow sensing module (100) according to any one of claims 1 to 5, characterized in that, Also includes: The cover (60) is coupled to the base (10) at the opening of the receiving groove (11), and the cover (60) includes an exhaust hole (61) that communicates with the air inlet (13) and the second flow channel (42).

8. The airflow sensing module (100) according to claim 7, characterized in that, A positioning groove (62) is provided on the side of the cover (60) opposite to the circuit board (20), and the positioning groove (62) is suitable for placing an oil-absorbing component (220).

9. An atomizing device (200), characterized in that, include: Atomizing module (210) having an air intake channel (211); as well as The airflow sensing module (100) according to any one of claims 1 to 8 is coupled to the atomizing module (210), and the air inlet (13) of the airflow sensing module (100) is connected to the air intake channel (211).

10. The atomizing device (200) according to claim 9, characterized in that, Also includes: An oil-absorbing component (220) is disposed on the side of the cover (60) of the airflow sensing module (100) facing the atomizing module (210).

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