Airflow detection assembly and atomization device

Abstract

The utility model relates to the technical field of atomization devices, in particular to an airflow detection assembly with an air pressure sensor and an atomization device. Due to the fact that the air pressure induction section of the air flow detection assembly extends up and down when the atomization cavity is in the state of being sucked, air flow is not prone to remaining in the air pressure induction section when flowing through the air pressure induction section, and even liquid is condensed out of the air flow induction section, the liquid can flow to a low position under the action of gravity. And the air does not easily enter the air pressure sensor through the air pressure sensing port on the channel wall of the air pressure sensing section. The waterproof breathable film at the air pressure sensing port can prevent aerosol from entering the air pressure sensor, the protection effect on the air pressure sensor is further improved, and the problem that the air pressure sensor is prone to damage is solved.

Description

Technical Field

[0001] The present application relates to the technical field of atomization devices, and in particular to an airflow detection component with an air pressure sensor and an atomization device. Background Art

[0002] The atomizer is used to generate aerosols for users to inhale. Currently, the atomizers used are roughly divided into two categories. One category is to heat the aerosol generating liquid. By adding the aerosol generating liquid to the atomizer, the aerosol generating liquid is heated and atomized by a heating element to generate an aerosol. The other category is to heat the aerosol generating rod. Specifically, the aerosol generating rod is inserted into the heating element of the atomizer, and the aerosol generating rod is heated by the heating element to generate an aerosol. The heating element usually needs to control the temperature when heating the aerosol generating rod so that the material used to generate the aerosol in the aerosol generating rod generates an aerosol without burning.

[0003] In order to synchronize the opening and closing of the electric heating element of the atomizer with the user's inhalation, an air pressure sensor is usually provided in the atomizer to sense the air pressure changes in the atomizer chamber of the atomizer. Since the air pressure sensor needs to sense the air pressure changes in the atomizer chamber through the airway, the aerosol or liquid in the atomizer chamber can easily enter the air pressure sensor through the airway, causing damage to the air pressure sensor, reducing its sensitivity or even damaging it to prevent it from working properly. Utility Model Content

[0004] The purpose of the present application is to provide an airflow detection component to improve the problem that aerosol or liquid in the current atomization device easily enters the air pressure sensor and causes damage to the air pressure sensor.

[0005] In addition, the purpose of the present application is to provide an atomization device using the above-mentioned airflow detection component.

[0006] In a first aspect, an embodiment provides an airflow detection component, the airflow detection component having a gas channel, the gas channel being used to conduct the outside world with the atomization chamber of the atomization device; the gas channel comprising an air pressure sensing section; when the airflow detection component is in a state where the aerosol in the atomization chamber is sucked, the air pressure sensing section extends up and down; an air pressure sensing port is provided on the channel wall of the air pressure sensing section;

[0007] The airflow detection component includes an air pressure sensor and a waterproof breathable membrane. The air pressure sensor is arranged on the outside of the gas channel and is connected to the gas channel through the air pressure sensing port; the waterproof breathable membrane is arranged at the air pressure sensing port to prevent aerosols and liquids from entering the air pressure sensor.

[0008] Furthermore, in one embodiment, when the aerosol in the atomization chamber is sucked, the airflow in the air pressure sensing section flows from top to bottom, and the air pressure sensing port is located at the upper part of the air pressure sensing section.

[0009] Furthermore, in one embodiment, the gas channel includes an atomization chamber connecting section and an intermediate section, the atomization chamber connecting section is used to communicate with the atomization chamber, and the intermediate section connects the atomization chamber connecting section and the air pressure sensing section, and when the aerosol in the atomization chamber is inhaled, the airflow direction in the atomization chamber connecting section is opposite to the airflow direction in the air pressure sensing section.

[0010] Furthermore, in one embodiment, the end of the middle section connected to the atomization chamber connecting section is the first end, the end of the middle section connected to the air pressure sensing section is the second end, and the middle section gradually tilts away from the air pressure sensor in the direction from the first end to the second end.

[0011] Furthermore, in one embodiment, one side of the waterproof breathable membrane is bonded to the channel wall of the air pressure sensing section, and the other side is bonded and fixed to the air pressure sensor.

[0012] Furthermore, in one embodiment, the channel wall of the air pressure sensing section has a mounting groove, and the air pressure sensor and the waterproof breathable membrane are both mounted in the mounting groove.

[0013] Furthermore, in one embodiment, the airflow detection assembly includes a channel tube, a channel in the channel tube forms at least a portion of the air pressure sensing section, and the air pressure sensor and the waterproof breathable membrane are both arranged on the channel tube.

[0014] Furthermore, in one embodiment, the channel tube includes a tube body and a sealing seat, the tube body has a mounting port, the sealing seat is installed at the mounting port, the air pressure sensing port is located on the sealing seat, and the air pressure sensor and the waterproof breathable membrane are both installed on the sealing seat.

[0015] Furthermore, in one embodiment, the sealing seat includes a sealing tube in the tube body, the tube body and the sealing tube are sleeved together and sealed, the air pressure sensing port is on the tube wall of the sealing tube, and the air pressure sensor and the waterproof breathable membrane are both installed on the tube wall of the sealing tube.

[0016] In a second aspect, an embodiment provides an atomization device, including a device shell, an electric heating element, a device circuit and an airflow detection component, wherein the device shell has an atomization chamber, and the electric heating element is used to heat an aerosol-generating substrate entering the atomization chamber to generate an aerosol;

[0017] The airflow detection component has a gas channel, and the gas channel is used to conduct the outside and the atomization chamber of the atomization device; the gas channel includes an air pressure sensing section; when the airflow detection component is in a state where the aerosol in the atomization chamber is sucked, the air pressure sensing section extends up and down; and an air pressure sensing port is provided on the channel wall of the air pressure sensing section;

[0018] The airflow detection component includes an air pressure sensor and a waterproof breathable membrane. The air pressure sensor is arranged on the outside of the gas channel and is connected to the gas channel through the air pressure sensing port; the waterproof breathable membrane is arranged at the air pressure sensing port to prevent aerosols and liquids from entering the air pressure sensor; the device circuit controls the operation of the electric heating element in response to the detection result of the air pressure sensor.

[0019] Furthermore, in one embodiment, when the aerosol in the atomization chamber is sucked, the airflow in the air pressure sensing section flows from top to bottom, and the air pressure sensing port is located at the upper part of the air pressure sensing section.

[0020] Furthermore, in one embodiment, the gas channel includes an atomization chamber connecting section and an intermediate section, the atomization chamber connecting section is used to communicate with the atomization chamber, and the intermediate section connects the atomization chamber connecting section and the air pressure sensing section, and when the aerosol in the atomization chamber is inhaled, the airflow direction in the atomization chamber connecting section is opposite to the airflow direction in the air pressure sensing section.

[0021] Furthermore, in one embodiment, the end of the middle section connected to the atomization chamber connecting section is the first end, the end of the middle section connected to the air pressure sensing section is the second end, and the middle section gradually tilts away from the air pressure sensor in the direction from the first end to the second end.

[0022] Furthermore, in one embodiment, one side of the waterproof breathable membrane is bonded to the channel wall of the air pressure sensing section, and the other side is bonded and fixed to the air pressure sensor.

[0023] Furthermore, in one embodiment, the channel wall of the air pressure sensing section has a mounting groove, and the air pressure sensor and the waterproof breathable membrane are both mounted in the mounting groove.

[0024] Furthermore, in one embodiment, the airflow detection assembly includes a channel tube, a channel in the channel tube forms at least a portion of the air pressure sensing section, and the air pressure sensor and the waterproof breathable membrane are both arranged on the channel tube.

[0025] Furthermore, in one embodiment, the channel tube includes a tube body and a sealing seat, the tube body has a mounting port, the sealing seat is installed at the mounting port, the air pressure sensing port is located on the sealing seat, and the air pressure sensor and the waterproof breathable membrane are both installed on the sealing seat.

[0026] Furthermore, in one embodiment, the sealing seat includes a sealing tube in the tube body, the tube body and the sealing tube are sleeved together and sealed, the air pressure sensing port is on the tube wall of the sealing tube, and the air pressure sensor and the waterproof breathable membrane are both installed on the tube wall of the sealing tube.

[0027] According to the airflow detection assembly of the above embodiment, since the air pressure sensing section of the airflow detection assembly extends up and down when the atomizing chamber is being sucked, the airflow is not easy to be retained in the air pressure sensing section when it flows through the air pressure sensing section. Even if liquid condenses in the airflow sensing section, it will flow to a lower place under the action of gravity and will not easily enter the air pressure sensor through the air pressure sensing port on the channel wall of the air pressure sensing section. The waterproof and breathable membrane at the air pressure sensing port can prevent aerosol from entering the air pressure sensor, further improving the protection effect of the air pressure sensor and improving the problem of easy damage to the air pressure sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of a partial structure of an atomization device in an embodiment;

[0029] Figure 2 A cross-sectional view of a partial structure of an atomizing device in an embodiment;

[0030] Figure 3 For along Figure 2 Sectional view of AA in the middle;

[0031] Figure 4 Another partial structural schematic diagram of an atomization device in an embodiment;

[0032] Figure 5 Schematic diagram of the structure of a sealing seat in an embodiment.

[0033] List of feature names corresponding to the figure marks in the figure: 1. atomizing chamber; 2. gas channel; 21. air pressure sensing section; 211. air pressure sensing port; 212. mounting groove; 22. atomizing chamber connecting section; 23. middle section; 3. air pressure sensor; 4. waterproof breathable membrane; 5. aerosol generating rod; 51. nozzle end; 52. air inlet end; 6. electric heating element; 60. heating tube; 7. tube body; 71. mounting port; 8. sealing seat; 81. sealing tube; 811. sealing tube hole; 82. mounting sleeve; 83. inner protrusion; 91. first pipe seat; 92. second pipe seat; 10. heating element seat; 101. seat hole; 102. heating element cover; 1021. cover hole; 103. thermal insulation sleeve.

[0034] Explanation on the reference numerals in brackets in the drawings: In the reference numerals in brackets in the drawings, the features referred to by the reference numerals are both the features represented by the numbers in the brackets and the features represented by the numbers outside the brackets. DETAILED DESCRIPTION

[0035] 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.

[0036] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations. At the same time, the steps or actions in the method description can also be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a required sequence, unless otherwise specified that a certain sequence must be followed.

[0037] 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).

[0038] It should be noted that the conduction, communication and interconnection described in the present application are not limited to empty channels through which the aerosol generating liquid can pass, but also include channels filled with porous materials through which the aerosol generating liquid can pass.

[0039] Since the aerosol generated by the atomization device atomizing the aerosol generating matrix cannot usually be sucked out completely, when not sucked out, the aerosol remaining in the atomization chamber will flow along the gas channel, and then enter the air pressure sensor connected to the gas channel, making the air pressure sensor easily damaged. In view of the problem that the air pressure sensor in the current atomization device is easily damaged, the present application opens an air pressure sensing port in the air pressure sensing section extending up and down, and arranges a waterproof and breathable membrane at the air pressure sensing port to prevent aerosol and liquid from entering the air pressure sensor.

[0040] In one embodiment, please refer to Figures 1 to 5 The atomizing device comprises a device shell, an electric heating element 6, a device circuit and an airflow detection component. The device shell has an atomizing chamber 1, the atomizing chamber 1 is for an aerosol generating substrate to enter, and the electric heating element 6 is used to heat and atomize the aerosol generating substrate entering the atomizing chamber to generate an aerosol.

[0041] Please refer to Figure 2 and Figure 3 The airflow detection component has an air channel 2, which is used to connect the outside with the atomization chamber 1. The gas channel 2 includes an air pressure sensing section 21. When the airflow detection component is in a state where the aerosol in the atomization chamber 1 is sucked, the air pressure sensing section 21 extends up and down. An air pressure sensing port 211 is provided on the channel wall of the air pressure sensing section 21.

[0042] The airflow detection assembly includes an air pressure sensor 3 and a waterproof breathable membrane 4. The air pressure sensor 3 is arranged outside the gas channel 2 and communicates with the gas channel 2 through the air pressure sensing port 211. The waterproof breathable membrane 4 is arranged at the air pressure sensing port 211 to prevent aerosol and liquid from entering the air pressure sensor 3. The device circuit controls the electric heating element 6 to work in response to the detection result of the air pressure sensor 3.

[0043] Since the air pressure sensing section 21 of the air flow detection assembly extends up and down when the atomizing chamber 1 is in the state of being sucked, it is not easy for the air flow to remain in the air pressure sensing section 21 when it flows through the air pressure sensing section 21. Even if liquid is condensed in the air flow sensing section, it will flow to a lower place under the action of gravity and will not easily enter the air pressure sensor 3 through the air pressure sensing port 211 on the channel wall of the air pressure sensing section 21. The waterproof and breathable membrane 4 at the air pressure sensing port 211 can prevent aerosol from entering the air pressure sensor 3, further improving the protection effect of the air pressure sensor 3 and improving the problem that the air pressure sensor 3 is easily damaged.

[0044] In the present application, the upward and downward extension focuses on explaining the different heights, and is not limited to the extension in the direction perpendicular to the horizontal plane. The upward and downward extension also includes the extension in the direction at a target angle to the horizontal plane, such as the extension direction forming an angle of 60 degrees with the horizontal plane. Of course, in one embodiment, when the airflow detection component is in a state where the aerosol in the atomization chamber 1 is sucked, the angle between the extension direction of the air pressure sensing section 21 and the horizontal plane is 70° to 90°, and the aerosol is less likely to enter the air pressure sensing port 211 at this time. Of course, in some other embodiments, the angle between the extension direction of the air pressure sensing section 21 and the horizontal plane can also be other angles other than 70° to 90°.

[0045] The air pressure sensing section 21 may be in a curved shape, such as a wavy shape, in addition to being in a straight line. It should be noted that the airflow direction of a certain section in the gas channel 2 in the present application refers to the overall flow direction of the airflow. For example, when a certain section is wavy, the airflow direction of the section is from one end of the section to the other end.

[0046] In one embodiment, please refer to Figure 1 and Figure 2 The atomizing chamber 1 is used to insert the aerosol generating rod 5, and the aerosol generating substrate is the aerosol generating rod 5. One end of the aerosol generating rod 5 is a suction nozzle end 51, and the other end is an air inlet end 52. The suction nozzle end 51 has a suction nozzle for suction, and the air inlet end 52 is used to supply gas to enter the aerosol generating rod 5 when the aerosol generating rod 5 is sucked.

[0047] In one embodiment, please refer to Figure 2 The electric heating element 6 is a heating tube 60 for inserting the aerosol generating rod 5. The heating tube 60 includes a heat-conducting tube and a heating element installed on the outer wall of the heat-conducting tube or embedded in the heat-conducting tube. Specifically, the heating element and the heat-conducting tube can adopt any feasible scheme. For example, the heating element can be a resistance wire embedded in the heat-conducting tube. In this case, the heat-conducting tube is suitable to be made of insulating heat-conducting materials. Of course, an insulating layer can also be coated on the outer periphery of the resistance wire. In this case, the heat-conducting tube can also be made of conductive materials; for another example, the heating element can also be a heating film printed on the outer periphery of the heat-conducting tube. In this case, the heating element and the heat-conducting tube jointly form a thick film tube, and there is an insulating layer outside the heating film. In this case, the heat-conducting tube can be a metal tube with good thermal conductivity; for another example, the heating element can also be a resistance wire wound on the outer wall of the heat-conducting tube. The heating element can also adopt electromagnetic induction heating. For example, an inductor coil is arranged outside the heat-conducting tube, and the heat-conducting tube itself is made of magnetic induction material. This is that the heat-conducting tube itself is a heating element; or a heating element made of magnetic induction material is arranged on the heat-conducting tube, and the heating element generates heat through electromagnetic induction heating.

[0048] In one embodiment, please refer to Figure 2 and Figure 3, when the aerosol in the atomizing chamber 1 is sucked, the airflow in the air pressure sensing section 21 flows from top to bottom, and the air pressure sensing port 211 is located at the upper part of the air pressure sensing section 21. Such an arrangement makes it more difficult for the aerosol or liquid to enter the air pressure sensing port 211. Of course, in some other embodiments, when the aerosol in the atomizing chamber 1 is sucked, the airflow in the air pressure sensing section 21 may also flow from bottom to top, and the air pressure sensing port 211 is located at the lower part of the air pressure sensing section 21. At this time, the gas channel 2 may be a straight channel, and the gas channel 2 and the atomizing chamber 1 are arranged in a straight line.

[0049] Further, in one embodiment, please refer to Figure 2 , the gas channel 2 includes an atomizing chamber connecting section 22 and an intermediate section 23, the atomizing chamber connecting section 22 is used to communicate with the atomizing chamber 1, and the intermediate section 23 connects the atomizing chamber connecting section 22 and the air pressure sensing section 21. When the aerosol in the atomizing chamber 1 is sucked, the airflow direction in the atomizing chamber connecting section 22 is opposite to the airflow direction in the air pressure sensing section 21. In the atomizing chamber connecting section 22, the intermediate section 23 and the air pressure sensing section 21, the connection between the two adjacent airways forms a corner airway, which can further improve the blocking effect on the aerosol and make the aerosol contact the channel wall to condense. It should be noted that the corner airway refers to an angular airway, which can be either an acute angle, an obtuse angle, or a right angle. The corner airway can be either an arc angle or a chamfered angle.

[0050] In order to further prevent the aerosol from flowing in the gas channel 2, in one embodiment, please refer to Figure 2 , the end of the middle section 23 connected to the atomizing chamber connecting section 22 is the first end, the end of the middle section 23 connected to the air pressure sensing section 21 is the second end, and the middle section 23 gradually tilts away from the air pressure sensor 3 in the direction from the first end to the second end. After the middle section 23 is tilted, the aerosol turns more when flowing to the air pressure sensing section 21, and it is easier to contact the corner airway between the middle section 23 and the air pressure sensing section 21 and be condensed, which has a better blocking effect on the aerosol. In some other embodiments, the middle section 23 may not be tilted, for example, the middle section 23 is perpendicular to the air pressure sensing section 21. In some other embodiments, the middle section 23 gradually tilts away from the atomizing chamber 1 in the direction from the second end to the first end.

[0051] Regarding the installation method of the waterproof breathable membrane 4, in one embodiment, please refer to Figure 3 One side of the waterproof breathable membrane 4 is bonded to the channel wall of the air pressure sensing section 21, and the other side is bonded and fixed to the air pressure sensor 3. In some other embodiments, the waterproof breathable membrane 4 can also be bonded and fixed only to the air pressure sensor 3. In one embodiment, the waterproof breathable membrane 4 is an oleophobic waterproof breathable membrane. Both sides of the waterproof breathable membrane 4 have a strong adhesive backing.

[0052] Further, in one embodiment, please refer to Figure 3 The channel wall of the air pressure sensing section 21 has a mounting groove 212, and the notch of the mounting groove 212 faces away from the inside of the air pressure sensing section 21. The air pressure sensor 3 and the waterproof breathable membrane 4 are both mounted in the mounting groove 212. In addition, the air pressure sensor 3 and the waterproof breathable membrane 4 can also be mounted on the outer surface of the channel wall of the air pressure sensing section 21.

[0053] In one embodiment, please refer to Figure 3 and Figure 4 The airflow detection assembly includes a channel tube, a channel in the channel tube forms at least a part of the air pressure sensing section 21, and the air pressure sensor 3 and the waterproof breathable membrane 4 are both arranged on the channel tube. The channel tube has a simple structure and lower processing cost.

[0054] Further, in one embodiment, please refer to Figure 2 and Figure 3 The channel tube includes a tube body 7 and a sealing seat 8, the tube body 7 has a mounting port 71, the sealing seat 8 is mounted at the mounting port 71, the air pressure sensing port 211 is located on the sealing seat 8, and the air pressure sensor 3 and the waterproof breathable membrane 4 are both mounted on the sealing seat 8. The sealing seat 8 facilitates the sealing between the air pressure sensor 3 and the tube body 7, and can also mount the air pressure sensor 3. In some other embodiments, the air pressure sensor 3 and the waterproof breathable membrane 4 can also be directly mounted on the tube body 7.

[0055] Further, in one embodiment, please refer to Figure 2 and Figure 5 The sealing seat 8 includes a sealing tube 81 in the tube body 7, the air pressure sensing port 211 is on the tube wall of the sealing tube 81, and the air pressure sensor 3 and the waterproof breathable membrane 4 are both installed on the tube wall of the sealing tube 81. The shape of the sealing tube 81 is consistent with the tube body 7, and the tube body 7 and the sealing tube 81 are sheathed together and sealed, so the sealing performance is better. The sealing tube 81 has a sealing tube hole 811, which is a through hole to keep the tube body 7 connected. In one embodiment, please refer to Figure 2 The sealing seat 8 is a flexible seat. When installing, the sealing tube 81 can be inserted into the tube body 7 through the installation opening 71. The sealing seat 8 and the tube body 7 can be connected in any feasible manner such as bonding, welding or clamping.

[0056] In one embodiment, please refer to Figure 3 and Figure 5, the mounting groove 212 is located on the tube wall of the sealing tube 81. The sealing seat 8 includes a mounting sleeve 82 located on the outside of the tube wall of the sealing tube 81, and the mounting sleeve 82 extends out of the tube body 7 from the mounting port 71. The mounting sleeve 82 surrounds at least a portion of the mounting groove 212. The tube wall of the sealing tube 81 has an inner protrusion 83 protruding inward, and the air pressure sensing port 211 is located on the inner protrusion 83. The inner protrusion 83 reduces the area of ​​the gas channel 2 at the air pressure sensing port 211, so that the air flow velocity is faster when flowing through the air pressure sensing port 211. In one embodiment, the sealing seat 8 is integrally injection molded.

[0057] Further, in one embodiment, please refer to Figure 2 and Figure 3 The airflow detection assembly includes a first pipe seat 91 and a second pipe seat 92, which are aligned and enclose a part of the gas channel 2, and the pipe body 7 is inserted on the first pipe seat 91. In one embodiment, the middle section 23 is surrounded by the first pipe seat 91 and the second pipe seat 92. In this way, the middle section 23 is more convenient to process. In order to facilitate the sealing of the pipe body 7 and the first pipe seat 91, in one embodiment, the first pipe seat 91 is made of a sealant material, such as silicone, rubber, etc.

[0058] Further, in one embodiment, please refer to Figure 2 The airflow detection assembly includes a heater seat 10, which is inserted and fixed to the first pipe seat 91, and the electric heater 6 is arranged on the heater seat 10. In this way, the heater seat 10 and the tube body 7 are both inserted and installed on the first pipe seat 91, which is convenient for assembly and improves assembly efficiency. In some other embodiments, in addition to being fixed to the first pipe seat 91 by insertion, the heater seat 10 can also be connected by bonding, welding, clamping or fasteners. In one embodiment, the heater seat 10 has a seat hole 101, and the seat hole 101 forms a part of the atomization chamber connecting section 22.

[0059] Regarding the channel wall of the gas channel 2, in one embodiment, the tube wall of the tube body 7, the tube wall of the gas channel sealing tube 81, the hole wall of the seat hole 101 in the heating element seat 10, and the hole walls in the first pipe seat 91 and the second pipe seat 92 all form a part of the channel wall of the gas channel 2.

[0060] In one embodiment, the airflow detection assembly may only include an airway sealing tube and an air pressure sensor fixed on the airway sealing tube.

[0061] Further, in one embodiment, please refer to Figure 2The atomizing device includes a heating element cover 102, an electric heating element 6 is sandwiched between the heating element seat 10 and the heating element cover 102, a heating tube 60 surrounds an atomizing chamber 1, the heating element cover 102 has a cover hole 1021 communicating with the atomizing chamber 1, the cover hole 1021 is for inserting the aerosol generating matrix, and the gas channel 2 is communicated with the bottom of the atomizing chamber 1 and extends to the heating element cover 102 and communicates with the cover hole 1021. In this way, there is no need to open a special hole on the housing of the atomizing device to communicate with the gas channel 2, and the number of holes on the housing of the atomizing device can be reduced.

[0062] In one embodiment, a heat insulating sleeve 103 is provided between the heating element seat 10 and the heating element cover 102 , and an annular heat insulating cavity is formed between the heat insulating sleeve 103 and the electric heating element 6 .

[0063] In some other embodiments, the atomizing device may also generate aerosol by heating the aerosol generating liquid, and in this case, the airflow detection assembly includes an oil guide member in contact with the electric heating member 6, and the oil guide member is used to guide the aerosol generating liquid to the electric heating member 6. At least part of the oil guide member and the electric heating member 6 are in the atomizing chamber 1. The airflow detection assembly has an oil storage chamber, and oil is supplied to the atomizing chamber 1 through the oil storage chamber.

[0064] In one embodiment, when the air pressure sensor 3 senses that the atomizing device is being puffed, the device circuit connects the electric heating element 6 to the power supply in response to the sensing result of the air pressure sensor 3, so that the electric heating element 6 starts to heat up. When the air pressure sensor 3 senses that the atomizing device is not being puffed, the device circuit disconnects the electric heating element 6 from the power supply in response to the sensing result of the air pressure sensor 3, and the electric heating element 6 cannot heat up. The sensing result of the air pressure sensor 3 can be an electrical signal sent after detecting the target data, or it can be an operation of directly disconnecting or connecting the working circuit in response to the puffing result of the atomizing device.

[0065] Specifically, in one embodiment, the air pressure sensor 3 is used to sense the gas pressure in the atomization chamber 1. The air pressure sensor 3 is connected to the device circuit. After the gas pressure in the atomization chamber 1 drops to a target value, the air pressure sensor 3 sends a connection signal. The device circuit connects the circuit in response to the connection signal. When the gas pressure in the atomization chamber 1 does not drop to the target value, the device circuit keeps the electric heating element 6 disconnected from the power supply in response to the air pressure sensor 3.

[0066] The above specific examples are used to illustrate the present application, which is only used to help understand the present application and is not intended to limit the present application. For technicians in the technical field to which the present application belongs, they can also make some simple deductions, deformations or substitutions based on the ideas of the present application.

Claims

1. An airflow detection component, characterized in that: The airflow detection component has a gas channel, and the gas channel is used to conduct the outside and the atomization chamber of the atomization device; the gas channel includes an air pressure sensing section; when the airflow detection component is in a state where the aerosol in the atomization chamber is sucked, the air pressure sensing section extends up and down; and an air pressure sensing port is provided on the channel wall of the air pressure sensing section; The airflow detection component includes an air pressure sensor and a waterproof breathable membrane. The air pressure sensor is arranged on the outside of the gas channel and is connected to the gas channel through the air pressure sensing port; the waterproof breathable membrane is arranged at the air pressure sensing port to prevent aerosols and liquids from entering the air pressure sensor.

2. The airflow detection assembly according to claim 1, characterized in that: When the aerosol in the atomizing cavity is sucked, the airflow in the air pressure sensing section flows from top to bottom, and the air pressure sensing port is located at the upper part of the air pressure sensing section.

3. The airflow detection assembly according to claim 2, characterized in that: The gas channel includes an atomization chamber connecting section and an intermediate section. The atomization chamber connecting section is used to communicate with the atomization chamber, and the intermediate section connects the atomization chamber connecting section and the air pressure sensing section. When the aerosol in the atomization chamber is inhaled, the airflow direction in the atomization chamber connecting section is opposite to the airflow direction in the air pressure sensing section.

4. The airflow detection assembly according to claim 3, characterized in that: The end of the middle section connected to the atomizing chamber connecting section is the first end, the end of the middle section connected to the air pressure sensing section is the second end, and the middle section gradually tilts away from the air pressure sensor in the direction from the first end to the second end.

5. The airflow detection assembly according to any one of claims 1 to 4, characterized in that: One side of the waterproof breathable membrane is bonded to the channel wall of the air pressure sensing section, and the other side is bonded and fixed to the air pressure sensor.

6. The airflow detection assembly according to any one of claims 1 to 4, characterized in that: The channel wall of the air pressure sensing section has a mounting groove, and the air pressure sensor and the waterproof breathable membrane are both mounted in the mounting groove.

7. The airflow detection assembly according to any one of claims 1 to 4, characterized in that: The airflow detection assembly comprises a channel tube, a channel in the channel tube forms at least a part of the air pressure sensing section, and the air pressure sensor and the waterproof breathable membrane are both arranged on the channel tube.

8. The airflow detection assembly according to claim 7, characterized in that: The channel tube comprises a tube body and a sealing seat, the tube body has an installation opening, the sealing seat is installed at the installation opening, the air pressure sensing port is located on the sealing seat, and the air pressure sensor and the waterproof breathable membrane are both installed on the sealing seat.

9. The airflow detection assembly according to claim 8, characterized in that: The sealing seat includes a sealing tube in the tube body, the tube body and the sealing tube are sleeved together and sealed, the air pressure sensing port is on the tube wall of the sealing tube, and the air pressure sensor and the waterproof breathable membrane are both installed on the tube wall of the sealing tube.

10. An atomizing device, characterized in that: The device comprises a device shell, an electric heater, a device circuit and an airflow detection component as described in any one of claims 1 to 9, wherein the device shell has an atomization chamber, the electric heater is used to heat an aerosol-generating substrate entering the atomization chamber to generate an aerosol, and the device circuit controls the operation of the electric heater in response to the detection result of the air pressure sensor.

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