Airflow sensing assembly and electronic atomization device

Abstract

The utility model is suitable for the technical field of atomization equipment, and provides an airflow sensing assembly and an electronic atomization device. The air flow sensing assembly comprises an air flow sensing piece which is provided with a first sensing end and a second sensing end which are oppositely arranged; the control piece is provided with a mounting surface, and the airflow sensing piece is arranged on the mounting surface and electrically connected with the control piece; a communication hole communicated with the external environment is formed in the mounting surface, and the first sensing end covers the communication hole; the sealing cover is arranged on the mounting surface and covers the airflow induction part, the second induction end faces the interior of the sealing cover, the sealing cover is provided with a communication opening enabling the interior and the exterior of the sealing cover to communicate, and the communication opening is used for being communicated with a suction part; and the airflow sensing piece is used for feeding back a preset instruction to the control piece after a preset pressure difference is formed between the first sensing end and the second sensing end. The arranged sealing cover can well seal the airflow sensing piece, interference of air in the external environment on the airflow sensing piece is greatly reduced, and the situation that starting is not sensitive is avoided.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of atomization equipment, and more particularly to an airflow induction assembly and an electronic atomization device. BACKGROUND

[0002] The electronic atomization device is a device that converts liquid (usually tobacco tar or a solution containing nicotine, spices, etc.) into aerosol (vapor) for users to inhale through heating.

[0003] In the related art, the electronic atomization device includes an atomization main body and an airflow sensing assembly, wherein the atomization main body has a suction nozzle; the airflow sensing assembly is arranged on the atomization main body and includes an airflow induction piece (such as a microphone or a silicon microphone) and a control circuit board, the airflow induction piece is arranged on the control circuit board and electrically connected with the control circuit board, and the airflow induction piece is in communication with the suction nozzle to sense airflow changes by sucking air outside through the suction nozzle and control the atomization main body through the control circuit board.

[0004] Although the above airflow induction piece can sense airflow changes to start the atomization main body, the airflow induction piece is not well sealed and is easily affected by the external environment to cause the atomization main body to be not sensitive to start. CONTENT OF THE UTILITY MODEL

[0005] The purpose of the embodiments of the application is to provide an airflow induction assembly and an electronic atomization device, aiming to solve the technical problem of poor sealing of the airflow induction piece in the related art.

[0006] To achieve the above purpose, according to one aspect of the application, an airflow induction assembly is provided, which includes: an airflow induction piece having a first induction end and a second induction end arranged oppositely; a control piece having a mounting surface, the airflow induction piece being arranged on the mounting surface and electrically connected with the control piece; the mounting surface is provided with a communication hole in communication with an external environment, and the first induction end covers the communication hole; a sealing cover is arranged on the mounting surface and covers the airflow induction piece, the second induction end is arranged towards the inside of the sealing cover, the sealing cover is provided with a communication port for communication between the inside and outside of the sealing cover, and the communication port is used for communication with a suction component; the airflow induction piece is used to feed back a preset instruction to the control piece after a preset pressure difference is formed between the first induction end and the second induction end.

[0007] Optionally, the airflow induction piece further includes an air passage structure arranged on the control piece and having a gas passage in communication with the external environment, the gas passage is in communication with the communication port and is used for communication with the suction component.

[0008] Optionally, the air passage structure is provided with a sealing space close to the surface of the mounting surface, the sealing cover is arranged in the sealing space, and the communication port is in communication with the gas passage through the sealing space.

[0009] Optionally, the airway structure has a sealing surface, and the sealing space is arranged on the sealing surface, and the sealing surface is in abutment with the mounting surface.

[0010] Optionally, the sealing space has an opening, the sealing surface is provided with a first abutting protrusion, the first abutting protrusion is an elastic structure, the first abutting protrusion is arranged along the circumference of the opening, and the first abutting protrusion is in abutment with the mounting surface.

[0011] Optionally, the sealing space includes a sealing groove, and the sealing cover is arranged in the sealing groove; the sealing groove has a groove wall, and the sealing cover is in abutment with the groove wall.

[0012] Optionally, a projection shape of the sealing cover projected to the mounting surface is circular.

[0013] Optionally, the sealing cover is a cylinder, a circumferential surface of the sealing cover is attached to the groove wall, and the communication port is arranged on an end surface of the sealing cover away from the mounting surface.

[0014] Optionally, the groove wall is provided with a second abutting protrusion, the second abutting protrusion is an elastic structure, the second abutting protrusion is arranged along the circumference of the groove wall, and the second abutting protrusion is in abutment with the sealing cover.

[0015] Optionally, the sealing groove further has a groove bottom adjacent to the groove wall, and the sealing cover is in abutment with the groove bottom.

[0016] Optionally, the airway structure is an elastic structure.

[0017] Optionally, the sealing cover is a rigid structure.

[0018] Optionally, the sealing space further includes a communication groove, the communication groove is arranged on a groove bottom of the sealing groove, and the communication groove is in communication with the sealing groove and the air passage.

[0019] Optionally, a surface of the sealing cover close to the communication groove is covered with a breathable and hydrophobic membrane, and the communication port is in communication with the communication groove through the breathable and hydrophobic membrane.

[0020] Optionally, the communication groove includes a first groove segment and a second groove segment in communication with each other, the first groove segment is in communication with the sealing groove, and the second groove segment is in communication with the air passage; a surface of the sealing cover close to the communication groove covers the first groove segment, and the first groove segment covers the second groove segment.

[0021] Optionally, the airflow sensing piece is a silicon microphone.

[0022] According to another aspect of the present application, an electronic atomization device is provided, including an atomization main body and the above-mentioned airflow sensing assembly, the atomization main body has a suction nozzle, the suction nozzle is in communication with the communication port and is formed as a suction component; the airflow sensing assembly is arranged on the atomization main body, and the control piece is electrically connected with the atomization main body and is used for feeding back a start signal to the atomization main body after receiving a preset instruction.

[0023] The air flow sensing assembly provided by the application has the beneficial effect that when the air flow sensing part needs to feed back the preset instruction to the control part, the air in the sealing cover is first sucked by the suction part to reduce the air pressure inside the sealing cover, and at this time, the air pressure at the second sensing end decreases; at the same time, since the first sensing end is in communication with the external environment through the communication hole, the air pressure at the first sensing end remains unchanged; after a preset pressure difference is formed between the first sensing end and the second sensing end, the air flow sensing part feeds back the preset instruction to the control part, so that subsequent operations are performed.

[0024] The sealing cover is arranged, which can seal the air flow sensing part well, thereby greatly reducing the interference of the gas in the external environment on the air flow sensing part, enabling the air flow sensing part to more accurately sense the real air flow change caused by the suction operation of the suction part, thereby effectively improving the sensitivity of the air flow sensing part and effectively avoiding the situation of unsensitive starting. At the same time, the air flow sensing part can be isolated from the external environment, thereby effectively reducing the erosion and damage of dust, water vapor and the like to the air flow sensing part, thereby effectively reducing the failure rate caused by external environmental factors and prolonging the service life of the air flow sensing part and the entire air flow sensing assembly. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0026] Figure 1 A structural schematic diagram of an electronic atomization device provided by an embodiment of the application;

[0027] Figure 2 A side view schematic diagram of an electronic atomization device provided by an embodiment of the application;

[0028] Figure 3 A Figure 2 sectional view schematic diagram of A-A;

[0029] Figure 4 A structural schematic diagram of an air flow sensing assembly provided by an embodiment of the application;

[0030] Figure 5 A front view schematic diagram of an air flow sensing assembly provided by an embodiment of the application;

[0031] Figure 6 A Figure 5 sectional view schematic diagram of B-B;

[0032] Figure 7For Figure 6 Enlarged schematic view at C;

[0033] Figure 8 Structural schematic view of the airflow sensing assembly provided by the embodiment of the present application from another perspective;

[0034] Figure 9 Structural schematic view of the second shell provided by the embodiment of the present application;

[0035] Figure 10 Structural schematic view of the airway structure provided by the embodiment of the present application;

[0036] The label details involved in the above-mentioned drawings are as follows:

[0037] 100, airflow sensing piece; 110, first sensing end; 120, second sensing end;

[0038] 200, control piece; 210, mounting surface; 220, communication hole;

[0039] 300, sealing cover; 310, communication port;

[0040] 400, airway structure; 410, air passing channel; 420, sealing space; 421, sealing groove; 421a, groove wall; 421b, opening; 421c, groove bottom; 422, communication groove; 422a, first groove segment; 422b, second groove segment; 430, sealing surface; 440, first abutting convex part; 450, second abutting convex part; 460, first shell; 470, second shell;

[0041] 500, air-permeable and water-repellent membrane;

[0042] 600, atomization main body; 610, suction component; 620, atomization core; 621, atomization channel. DETAILED DESCRIPTION

[0043] In order to make the technical problems to be solved by the present application, the technical solutions and beneficial effects clearer and more apparent, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0044] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. The embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0045] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0046] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is more than two, unless otherwise specifically limited.

[0047] As described in the background, the electronic atomization device is a device that converts a liquid (usually a tobacco tar or a solution containing nicotine, spices, etc.) into an aerosol (vapor) for a user to inhale by heating. In the related art, the electronic atomization device includes an atomization body and an airflow sensing assembly, wherein the atomization body has a suction nozzle; the airflow sensing assembly is arranged on the atomization body and includes an airflow sensing piece (such as a microphone or a silicon microphone) and a control circuit board, the airflow sensing piece is arranged on the control circuit board and electrically connected with the control circuit board, the airflow sensing piece is in communication with the suction nozzle to sense the change of the airflow inhaled from the outside through the suction nozzle, and the atomization body is controlled through the control circuit board. Although the above-mentioned airflow sensing piece can sense the change of the airflow, so as to start the atomization body; however, the airflow sensing piece is not well sealed and is easily affected by the external environment, resulting in the problem of insensitive start.

[0048] Reference Figures 1 to 7In order to solve the above problems, according to one aspect of the present application, the embodiment of the present application provides a gas flow sensing assembly, which comprises a gas flow sensing piece 100, a control piece 200 and a sealing cover 300, wherein the gas flow sensing piece 100 has a first sensing end 110 and a second sensing end 120 arranged oppositely; the control piece 200 has a mounting surface 210, the gas flow sensing piece 100 is arranged on the mounting surface 210 and is electrically connected with the control piece 200; the mounting surface 210 is provided with a communication hole 220 in communication with an external environment, and the first sensing end 110 covers the communication hole 220; the sealing cover 300 is arranged on the mounting surface 210 and covers the gas flow sensing piece 100, the second sensing end 120 is arranged towards the inside of the sealing cover 300, and the sealing cover 300 is provided with a communication port 310 for communication between the inside and outside of the sealing cover 300, and the communication port 310 is used for communication with a suction component 610; the gas flow sensing piece 100 is used for feeding back a preset instruction to the control piece 200 after a preset pressure difference is formed between the first sensing end 110 and the second sensing end 120.

[0049] In the embodiment of the present application, the gas flow sensing assembly is used for an electronic atomization device, and the electronic atomization device comprises an atomization main body 600, the atomization main body 600 has a suction nozzle, the suction nozzle is in communication with the communication port 310, and the suction nozzle is formed as the suction component 610. The gas flow sensing piece 100 can be a microphone or a silicon microphone, and the gas flow sensing piece 100 is fixedly installed on the mounting surface 210 in a welding manner. In other embodiments, the gas flow sensing piece 100 can also be fixedly installed on the mounting surface 210 in a gluing or welding manner. The control piece 200 is a control circuit board, the preset instruction is a starting instruction, the control piece 200 is electrically connected with the atomization main body 600; the communication hole 220 is a through hole penetrating through the control piece 200, the external environment is usually an atmospheric environment, and the air pressure of the external environment is usually atmospheric pressure; the first sensing end 110 is kept in close contact with the mounting surface 210, so as to keep in communication with the external environment at all times; in other embodiments, the external environment can also be other use environments. The sealing cover 300 is fixedly installed on the mounting surface 210 in a welding manner. In other embodiments, the sealing cover 300 can also be fixedly installed on the mounting surface 210 in a gluing or welding manner; the communication port 310 is arranged on the outer surface of the sealing cover 300 and penetrates into the inside of the sealing cover 300, and the air pressure in the inside of the sealing cover 300 is changed by suction of the suction component 610 to the air in the inside of the sealing cover 300. Figure 3 The dashed line in the figure is the flow path of the gas flowing through the gas passage 410.

[0050] When the airflow sensing piece 100 needs to feed back the preset instruction to the control piece 200 in the present application, the air in the sealing cover 300 is first sucked by the suction component 610 to reduce the air pressure inside the sealing cover 300, and at this time, the air pressure at the second sensing end 120 will decrease; at the same time, since the first sensing end 110 is in communication with the external environment through the communication hole 220, the air pressure at the first sensing end 110 remains unchanged; after a preset pressure difference is formed between the first sensing end 110 and the second sensing end 120, the airflow sensing piece 100 will feed back the preset instruction to the control piece 200, thereby performing subsequent operations.

[0051] The sealing cover 300 arranged can not only seal the airflow sensing piece 100 well, thereby greatly reducing the interference of the gas in the external environment on the airflow sensing piece, but also enable the airflow sensing piece 100 to more accurately sense the real airflow change caused by the suction operation of the suction component 610, thereby effectively improving the sensitivity of the airflow sensing piece 100 and effectively avoiding the situation of not being sensitive to start. At the same time, the airflow sensing piece 100 can also be isolated from the external environment, thereby effectively reducing the erosion and damage of dust, water vapor and the like to the airflow sensing piece 100, thereby effectively reducing the failure rate caused by external environmental factors and prolonging the service life of the airflow sensing piece 100 and the entire airflow sensing assembly.

[0052] With reference to Figures 3 to 8 In an embodiment, the airflow sensing piece 100 further comprises an air passage structure 400, the air passage structure 400 is arranged on the control piece 200 and has a gas passing channel 410 in communication with the external environment, the gas passing channel 410 is in communication with the communication port 310 and is used to communicate with the suction component 610.

[0053] In the present embodiment, the air passage structure 400 is fixedly installed on the control piece 200, the air passage structure 400 comprises a first shell 460 and a second shell 470, the first shell 460 and the second shell 470 are connected to each other and in communication with each other, the space in which the first shell 460 and the second shell 470 communicate with each other forms the gas passing channel 410, and the communication port 310 communicates with the suction component 610 through the gas passing channel 410. The gas passing channel 410 arranged not only provides a clear and stable flow path for the airflow flowing from the sealing cover 300 to the suction component 610, so that the airflow can stably flow and ensure that the airflow sensing piece 100 can accurately sense the change of the airflow; at the same time, the airflow at the suction component 610 is also isolated from other possible airflow paths, thereby reducing the risk of air leakage and effectively improving the accuracy and reliability of sensing.

[0054] With reference to Figures 3 to 10In an embodiment, the air passage structure 400 is provided with a sealing space 420 close to the surface of the mounting surface 210, and the sealing cover 300 is arranged in the sealing space 420, and the communication port 310 communicates with the air passage 410 through the sealing space 420.

[0055] In the embodiment, the sealing space 420 is arranged on the second shell 470, the communication port 310 communicates with the sealing space 420, and the sealing space 420 communicates with the air passage 410. On the one hand, the sealing space 420 arranged can ensure that the air flow does not leak during the transmission from the communication port 310 to the air passage 410, effectively ensuring the complete transmission of the air flow, so that the air flow sensing element 100 can accurately sense the change of the air flow, and effectively improve the accuracy and sensitivity of the sensing. At the same time, the sealing space 420 also provides a relatively stable transition area for the air flow, so that the air flow can smoothly transition from the communication port 310 to the air passage 410 after entering, which is beneficial to the air flow sensing element 100 to more accurately detect the change characteristics of the air flow.

[0056] On the other hand, the sealing space 420 arranged also provides better fixation and support for the sealing cover 300, so that the connection between the sealing cover 300 and the air passage structure 400 is more stable, and the possibility of loosening or displacement of the components caused by vibration, collision and other factors is reduced, effectively improving the stability and reliability of the entire air flow sensing assembly, and prolonging the service life of the air flow sensing assembly.

[0057] On the other hand, the sealing cover 300 and the sealing space 420 used in cooperation also effectively reduce the overall volume of the air flow sensing assembly.

[0058] Referring to Figures 4 to 10 In an embodiment, the air passage structure 400 has a sealing surface 430, the sealing space 420 is arranged on the sealing surface 430, and the sealing surface 430 abuts against the mounting surface 210.

[0059] In the embodiment, the sealing surface 430 is arranged on the second shell 470, and the sealing surface 430 can be attached to the mounting surface 210. The abutting sealing surface 430 and the mounting surface 210 not only form a good sealing line, but also effectively prevent external air, dust, moisture and other impurities from entering the sealing space 420 through the gap between the sealing surface 430 and the mounting surface 210 to interfere with the air flow sensing element 100, effectively ensuring the accuracy and sensitivity of the air flow sensing element 100. At the same time, it is also helpful to maintain a stable air flow environment in the sealing space 420, reduce the interference of external environmental factors on the air flow in the sealing space 420, so that the air flow can be more stable during the process of entering the sealing space 420 from the communication port 310 and then flowing to the air passage 410.

[0060] Referring toFigures 4 to 10 In an embodiment, the sealing space 420 has an opening 421b, and the sealing surface 430 is provided with a first abutting protrusion 440, which is an elastic structure, and is arranged along the circumference of the opening 421b and abuts against the mounting surface 210.

[0061] In the embodiment, the opening 421b is arranged on the sealing surface 430, and the first abutting protrusion 440 is made of silica gel. In other embodiments, the first abutting protrusion 440 can also be made of rubber. The first abutting protrusion 440 arranged can be self-adapted to the shape and contact of the mounting surface 210, and even if the mounting surface 210 has a certain unevenness or a slight deformation in use, the first abutting protrusion 440 of the elastic structure can tightly fit on the mounting surface 210, effectively preventing the medium such as gas or liquid from entering the sealing space 420 through the gap between the sealing surface 430 and the mounting surface 210, thereby ensuring the sealing effect. At the same time, it can also play a role in buffering and shock absorption, avoiding hard contact between the airway structure 400 and the control member 200 due to vibration or impact, and improving the stability and reliability of the entire airflow sensing assembly.

[0062] Referring to Figures 4 to 7 In an embodiment, the sealing space 420 includes a sealing groove 421, and the sealing cover 300 is arranged in the sealing groove 421; the sealing groove 421 has a groove wall 421a, and the sealing cover 300 abuts against the groove wall 421a.

[0063] In the embodiment, the sealing cover 300 can be kept in close contact with the groove wall 421a. The abutting sealing cover 300 and the groove wall 421a not only form a good sealing line, but also effectively prevent the impurities such as external air, dust, moisture, etc. from entering the sealing cover 300 through the gap between the sealing cover 300 and the groove wall 421a to interfere with the airflow sensing member 100, effectively ensuring the accuracy and sensitivity of the airflow sensing member 100. At the same time, it also helps to maintain a stable airflow environment in the sealing space 420, thereby reducing the interference of external environmental factors on the airflow in the sealing space 420, so that the airflow can be more stable in the process of flowing from the communication port 310 into the sealing space 420 and then to the airflow passage 410. In addition, the sealing groove 421 has a groove opening opposite to the groove wall 421a, which is arranged on the sealing surface 430 and is provided with the first abutting protrusion 440, and the groove opening is formed as the opening 421b.

[0064] Referring to Figures 4 to 7 In an embodiment, the projection shape of the sealing cover 300 projected to the mounting surface 210 is circular.

[0065] In the embodiment, the sealing cover 300 can be cylindrical, circular truncated cone or circular cone. The circular structure can evenly disperse the force from all directions to the entire circumference when the force is applied; due to the uniform distribution of pressure, the contact pressure between the sealing cover 300 and the mounting surface 210 can also be uniform; this makes the sealing gap between the sealing cover 300 and the mounting surface 210 consistent on the entire circumference, effectively preventing air flow from leaking from the sealing gap, ensuring good and uniform sealing effect, and maintaining stable sealing performance in both static and dynamic working conditions. In addition, the sealing cover 300 described above not only has superior mechanical properties such as high strength and stability, but also has the advantage of relatively small stress concentration; the above advantages can effectively enhance the stability and reliability of the sealing cover 300.

[0066] Referring to Figures 4 to 7 In an embodiment, the sealing cover 300 is a cylinder, the peripheral surface of the sealing cover 300 is attached to the groove wall 421a, and the communication port 310 is arranged on the end surface of the sealing cover 300 away from the mounting surface 210.

[0067] On the one hand, the shape of the cylinder makes the contact edge of the sealing cover 300 and the groove wall 421a relatively regular, making it easier to achieve good edge sealing and avoid the formation of a leakage channel at the edge, further enhancing the sealing effect. On the other hand, the shape of the cylinder facilitates operation, alignment and installation. On the other hand, the shape of the cylinder has certain advantages in space utilization, which can provide a larger sealing volume in a limited space, and at the same time, it is easier to achieve a compact layout with the surrounding structure, thereby improving the overall integration and space utilization of the air flow sensing assembly.

[0068] Referring to Figures 4 to 10 In an embodiment, the groove wall 421a is provided with a second abutting convex portion 450, the second abutting convex portion 450 is an elastic structure, the second abutting convex portion 450 is arranged along the circumference of the groove wall 421a, and abuts against the sealing cover 300.

[0069] In the embodiment, the second abutting convex portion 450 is made of silica gel, and in other embodiments, the second abutting convex portion 450 can also be made of rubber. The second abutting convex portion 450 abuts against the peripheral surface of the sealing cover 300.

[0070] The second abutting convex part 450 can not only be self-adapted according to the shape and contact of the circumferential surface of the sealing cover 300, but also can be closely attached to the circumferential surface of the sealing cover 300 even if the circumferential surface of the sealing cover 300 has a certain unevenness or a slight deformation in the use process, so as to effectively prevent the leakage of the medium such as gas and liquid from the connection between the groove wall 421a and the circumferential surface of the sealing cover 300, thereby improving the sealing effect. Meanwhile, the second abutting convex part 450 can also play a role of buffering and shock absorption, avoiding the hard contact between the airway structure 400 and the sealing cover 300 due to vibration or impact, and improving the stability and reliability of the entire airflow sensing assembly.

[0071] With reference to Figures 4 to 7 In an embodiment, the sealing groove 421 further has a groove bottom 421c arranged adjacent to the groove wall 421a, and the sealing cover 300 abuts against the groove bottom 421c.

[0072] In the embodiment, the end surface of the sealing cover 300 can be attached to the groove bottom 421c, and in other embodiments, there can be a certain gap between the end surface of the sealing cover 300 and the groove bottom 421c.

[0073] The abutting sealing cover 300 and the groove bottom 421c not only form a good sealing line, but also effectively prevent the impurities such as external air, dust and moisture from entering the sealing cover 300 through the gap between the sealing cover 300 and the groove bottom 421c to interfere with the airflow sensing piece 100, thereby effectively ensuring the accuracy and sensitivity of the airflow sensing piece 100. Meanwhile, it is also helpful to maintain the stable airflow environment in the sealing space 420, thereby reducing the interference of external environmental factors on the airflow in the sealing space 420, so that the airflow can be more stable in the process of entering the sealing space 420 from the communication port 310 and then flowing to the air passing channel 410.

[0074] With reference to Figures 4 to 10 In an embodiment, the airway structure 400 is a flexible structure. In the embodiment, the airway structure 400 is made of silica gel, and the airway structure 400, the first abutting convex part 440 and the second abutting convex part 450 are integrally formed; in other embodiments, the airway structure 400 can also be made of rubber. The above design is helpful for manufacturing and processing, reduces the manufacturing difficulty and improves the manufacturing efficiency.

[0075] With reference to Figures 4 to 7 In an embodiment, the sealing cover 300 is a rigid structure. In the embodiment, the sealing cover 300 is made of metal, and in other embodiments, the sealing cover 300 can also be made of ceramic material, glass material or high-hardness plastic.

[0076] The rigid structure of the sealing cover 300 is used in cooperation with the elastic structure of the airway structure 400, which not only helps the airway structure 400 and the sealing cover 300 to be closely fitted, thereby realizing good fitting and tight sealing. Meanwhile, the rigid structure of the sealing cover 300 also provides stable external support for the elastic structure of the airway structure 400, effectively preventing the airway structure 400 from being excessively deformed or even collapsed when subjected to external pressure or airflow impact, and ensuring the normal shape and gas flow function of the airway structure 400.

[0077] With reference to Figures 4 to 9 In an embodiment, the sealing space 420 further comprises a communication groove 422, which is arranged at the groove bottom 421c of the sealing groove 421 and communicates with the sealing groove 421 and the air passage 410.

[0078] In the embodiment, the sealing groove 421 communicates with the air passage 410 through the communication groove 422. During the use of the airflow sensing assembly, due to the flow and pressure change of the gas, the air pressure in the sealing groove 421 and the air passage 410 may be unbalanced; the existence of the communication groove 422 can more effectively balance the air pressure between the two, quickly adjust the pressure difference through the flow of the gas in the communication groove 422, ensure the stability of the air pressure in the system, and reduce the influence of the air pressure fluctuation on the airflow sensing assembly.

[0079] With reference to Figures 4 to 7 In an embodiment, the surface of the sealing cover 300 close to the communication groove 422 is covered with a breathable and hydrophobic film 500, and the communication port 310 communicates with the communication groove 422 through the breathable and hydrophobic film 500.

[0080] In the embodiment, the breathable and hydrophobic film 500 can be a PTFE film (PTFE is the English full name of Polytetrafluoroethylene, and the Chinese name is polytetrafluoroethylene), a PVDF film (PVDF is the English full name of Polyvinylidene Fluoride, and the Chinese name is polyvinylidene fluoride) or a PE film (PE is the English full name of Polyethylene, and the Chinese name is polyethylene). The breathable and hydrophobic film 500 arranged can effectively prevent external water vapor or oil vapor from entering the sealing cover 300 through the communication port 310 and polluting the airflow sensing piece 100, thereby not only ensuring the sensitivity of the start of the airflow sensing piece 100, but also prolonging the service life of the airflow sensing piece 100.

[0081] With reference to Figures 4 to 9In an embodiment, the communication groove 422 comprises a first groove segment 422a and a second groove segment 422b in communication with each other, the first groove segment 422a is in communication with the sealing groove 421, and the second groove segment 422b is in communication with the air passage 410; the sealing cover 300 covers the first groove segment 422a on the surface of the communication groove 422, and the first groove segment 422a covers the second groove segment 422b.

[0082] In the embodiment, the groove diameter of the first groove segment 422a is smaller than the groove diameter of the sealing groove 421 and larger than the groove diameter of the second groove segment 422b. The first groove segment 422a not only provides a deformation space for the air-permeable and water-repellent membrane 500 to deform due to air pressure changes, but also ensures that the air-permeable and water-repellent membrane 500 can smoothly deform; at the same time, it also helps the air flow in the sealing cover 300 to be more smoothly sucked into the first groove segment 422a. The second groove segment 422b helps the air flow in the first groove segment 422a to be more smoothly sucked into the second groove segment 422b.

[0083] Referring to Figure 7 In an embodiment, the air flow sensing piece 100 is a silicon microphone. In the embodiment, the diameter of the sealing cover 300 is greater than or equal to 4 mm. The silicon microphone not only improves the sensitivity of the start-up response, but also reduces the volume of the air flow sensing piece.

[0084] Referring to Figures 1 to 10 According to another aspect of the present application, the embodiments of the present application also provide an electronic atomization device, comprising an atomization main body 600 and the air flow sensing assembly described above, the atomization main body 600 has a suction nozzle, the suction nozzle is in communication with the communication port 310 and is formed as a suction component 610; the air flow sensing assembly is arranged in the atomization main body 600, and the control component 200 is electrically connected with the atomization main body 600 and is used to feed back a start-up signal to the atomization main body 600 after receiving a preset instruction.

[0085] In the embodiments of the present application, the atomization main body 600 further comprises an atomization core 620, the atomization core 620 has an atomization channel 621, the suction nozzle is in communication with the atomization channel 621, and the atomization channel 621 is in communication with the communication port 310.

[0086] In the present application, when the atomization main body 600 needs to be started, the air inside the sealing cover 300 is first sucked out through the suction nozzle to reduce the air pressure inside the sealing cover 300, at this time, the air pressure at the second sensing end 120 will decrease; at the same time, since the first sensing end 110 is in communication with the external environment through the communication hole 220, the air pressure at the first sensing end 110 remains unchanged; after a preset pressure difference is formed between the first sensing end 110 and the second sensing end 120, the air flow sensing piece 100 will feed back a preset instruction to the control component 200, and the control component 200 will feed back a start-up signal to the atomization main body 600 after receiving the preset instruction, so as to start the atomization main body 600.

[0087] The sealing cover 300 is arranged, which can seal the airflow sensing piece 100 well, thereby greatly reducing the interference of air in the external environment on the airflow sensing piece, so that the airflow sensing piece 100 can more accurately sense the real airflow change caused by the suction operation of the suction nozzle, thereby effectively improving the sensitivity of the airflow sensing piece 100 and effectively avoiding the situation of not sensitive to start. At the same time, the airflow sensing piece 100 can be isolated from the external environment, thereby effectively reducing the erosion and damage of tobacco tar, aerosol condensate, dust, water vapor and the like to the airflow sensing piece 100, thereby effectively reducing the failure rate caused by external environmental factors, and prolonging the service life of the airflow sensing piece 100 and the entire airflow sensing assembly.

[0088] To sum up, the airflow sensing assembly and the electronic atomization device provided by the embodiment have at least the following beneficial technical effects: the sealing cover 300 is arranged, which can seal the airflow sensing piece 100 well, thereby greatly reducing the interference of air in the external environment on the airflow sensing piece, so that the airflow sensing piece 100 can more accurately sense the real airflow change caused by the suction operation of the suction nozzle, thereby effectively improving the sensitivity of the airflow sensing piece 100 and effectively avoiding the situation of not sensitive to start. At the same time, the airflow sensing piece 100 can be isolated from the external environment, thereby effectively reducing the erosion and damage of tobacco tar, aerosol condensate, dust, water vapor and the like to the airflow sensing piece 100, thereby effectively reducing the failure rate caused by external environmental factors, and prolonging the service life of the airflow sensing piece 100 and the entire airflow sensing assembly.

[0089] The above is only a preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An air flow sensing assembly, comprising: The application relates to a gas flow sensing component. The gas flow sensing component comprises a gas flow sensing element with a first sensing end and a second sensing end arranged oppositely; a control element with a mounting surface, wherein the gas flow sensing element is arranged on the mounting surface and electrically connected with the control element; the mounting surface is provided with a communication hole in communication with the external environment, and the first sensing end covers the communication hole; a sealing cover arranged on the mounting surface and covering the gas flow sensing element, wherein the second sensing end is arranged towards the inside of the sealing cover, the sealing cover is provided with a communication port for communication with a suction component, and the gas flow sensing element is used to feed back a preset instruction to the control element after a preset pressure difference is formed between the first sensing end and the second sensing end. The gas flow sensing element further comprises a gas passage structure arranged on the control element and provided with a gas passage in communication with the external environment, wherein the gas passage is in communication with the communication port and used to communicate with the suction component. The gas passage structure is provided with a sealing space close to the surface of the mounting surface, the sealing cover penetrates into the sealing space, and the communication port is in communication with the gas passage through the sealing space.

2. The airflow sensing assembly of claim 1, wherein, The gas passage structure is provided with a sealing surface, the sealing space is arranged on the sealing surface, and the sealing surface is in abutment with the mounting surface.

3. The airflow sensing assembly of claim 2, wherein, The sealing space is provided with a first abutting convex part, the first abutting convex part is an elastic structure, the first abutting convex part is arranged along the circumference of the opening and in abutment with the mounting surface.

4. The airflow sensing assembly of claim 3, wherein, The sealing space comprises a sealing groove, the sealing cover penetrates into the sealing groove, the sealing groove is provided with a groove wall, and the sealing cover is in abutment with the groove wall.

5. The airflow sensing assembly of claim 4, wherein, The projection shape of the sealing cover on the mounting surface is circular.

6. The airflow induction assembly of any one of claims 3-5, wherein, The sealing cover is a cylinder, the peripheral surface of the sealing cover is in abutment with the groove wall, and the communication port is arranged on the end surface of the sealing cover away from the mounting surface.

7. The airflow sensing assembly of claim 6, wherein, The groove wall is provided with a second abutting convex part, the second abutting convex part is an elastic structure, the second abutting convex part is arranged along the circumference of the groove wall and in abutment with the sealing cover.

8. The airflow sensing assembly of claim 7, wherein, The sealing groove is further provided with a groove bottom adjacent to the groove wall, and the sealing cover is in abutment with the groove bottom.

9. The airflow sensing assembly of claim 6, wherein, The gas passage structure is an elastic structure.

10. The airflow sensing assembly of claim 6, wherein, The sealing cover is a rigid structure.

11. The airflow sensing assembly of claim 6, wherein, The sealing space further comprises a communication groove arranged on the groove bottom of the sealing groove and in communication with the sealing groove and the gas passage.

12. The airflow sensing assembly of claim 11, wherein, The surface of the sealing cover close to the communication groove is covered with a breathable and water-repellent film, and the communication port is in communication with the communication groove through the breathable and water-repellent film.

13. The airflow sensing assembly of claim 6, wherein, The communication groove comprises a first groove segment and a second groove segment in communication with each other, the first groove segment is in communication with the sealing groove, the second groove segment is in communication with the gas passage, the surface of the sealing cover close to the communication groove covers the first groove segment, and the first groove segment covers the second groove segment.

14. The airflow sensing assembly of claim 13, wherein, The gas flow sensing element is a silicon microphone.

15. The airflow sensing assembly of claim 14, wherein, The application further relates to an atomization main body with a suction nozzle in communication with the communication port and formed as the suction component.

16. The airflow sensing assembly of any one of claims 1 to 5, wherein, ​ 17. An electronic atomizing device, characterized by, ​ The airflow sensing assembly is arranged in the atomization main body, and the control member is electrically connected with the atomization main body and is configured to feed back a starting signal to the atomization main body after receiving the preset instruction.

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